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| author | David Howells <dhowells@redhat.com> | 2006-12-05 17:01:28 +0000 |
|---|---|---|
| committer | David Howells <dhowells@warthog.cambridge.redhat.com> | 2006-12-05 17:01:28 +0000 |
| commit | 9db73724453a9350e1c22dbe732d427e2939a5c9 (patch) | |
| tree | 15e3ead6413ae97398a54292acc199bee0864d42 /drivers | |
| parent | 4c1ac1b49122b805adfa4efc620592f68dccf5db (diff) | |
| parent | e62438630ca37539c8cc1553710bbfaa3cf960a7 (diff) | |
| download | kernel_samsung_aries-9db73724453a9350e1c22dbe732d427e2939a5c9.zip kernel_samsung_aries-9db73724453a9350e1c22dbe732d427e2939a5c9.tar.gz kernel_samsung_aries-9db73724453a9350e1c22dbe732d427e2939a5c9.tar.bz2 | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/ata/libata-scsi.c
include/linux/libata.h
Futher merge of Linus's head and compilation fixups.
Signed-Off-By: David Howells <dhowells@redhat.com>
Diffstat (limited to 'drivers')
122 files changed, 5600 insertions, 1285 deletions
diff --git a/drivers/Makefile b/drivers/Makefile index 4ac14da..6771177 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -77,3 +77,4 @@ obj-$(CONFIG_CRYPTO) += crypto/ obj-$(CONFIG_SUPERH) += sh/ obj-$(CONFIG_GENERIC_TIME) += clocksource/ obj-$(CONFIG_DMA_ENGINE) += dma/ +obj-$(CONFIG_PPC_PS3) += ps3/ diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 578b99b..bf5b79e 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -27,6 +27,7 @@ #include <linux/init.h> #include <linux/types.h> #include <linux/notifier.h> +#include <linux/jiffies.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 03f6338..984ab28 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -328,6 +328,15 @@ config PATA_TRIFLEX If unsure, say N. +config PATA_MARVELL + tristate "Marvell PATA support via legacy mode" + depends on PCI + help + This option enables limited support for the Marvell 88SE6145 ATA + controller. + + If unsure, say N. + config PATA_MPIIX tristate "Intel PATA MPIIX support" depends on PCI @@ -483,6 +492,32 @@ config PATA_WINBOND If unsure, say N. +config PATA_WINBOND_VLB + tristate "Winbond W83759A VLB PATA support (Experimental)" + depends on ISA && EXPERIMENTAL + help + Support for the Winbond W83759A controller on Vesa Local Bus + systems. + +config PATA_PLATFORM + tristate "Generic platform device PATA support" + depends on EMBEDDED + help + This option enables support for generic directly connected ATA + devices commonly found on embedded systems. + + If unsure, say N. + +config PATA_IXP4XX_CF + tristate "IXP4XX Compact Flash support" + depends on ARCH_IXP4XX + help + This option enables support for a Compact Flash connected on + the ixp4xx expansion bus. This driver had been written for + Loft/Avila boards in mind but can work with others. + + If unsure, say N. + endif endmenu diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index 72243a6..bc3d81a 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -38,6 +38,7 @@ obj-$(CONFIG_PATA_NETCELL) += pata_netcell.o obj-$(CONFIG_PATA_NS87410) += pata_ns87410.o obj-$(CONFIG_PATA_OPTI) += pata_opti.o obj-$(CONFIG_PATA_OPTIDMA) += pata_optidma.o +obj-$(CONFIG_PATA_MARVELL) += pata_marvell.o obj-$(CONFIG_PATA_MPIIX) += pata_mpiix.o obj-$(CONFIG_PATA_OLDPIIX) += pata_oldpiix.o obj-$(CONFIG_PATA_PCMCIA) += pata_pcmcia.o @@ -51,8 +52,11 @@ obj-$(CONFIG_PATA_SERVERWORKS) += pata_serverworks.o obj-$(CONFIG_PATA_SIL680) += pata_sil680.o obj-$(CONFIG_PATA_VIA) += pata_via.o obj-$(CONFIG_PATA_WINBOND) += pata_sl82c105.o +obj-$(CONFIG_PATA_WINBOND_VLB) += pata_winbond.o obj-$(CONFIG_PATA_SIS) += pata_sis.o obj-$(CONFIG_PATA_TRIFLEX) += pata_triflex.o +obj-$(CONFIG_PATA_IXP4XX_CF) += pata_ixp4xx_cf.o +obj-$(CONFIG_PATA_PLATFORM) += pata_platform.o # Should be last but one libata driver obj-$(CONFIG_ATA_GENERIC) += ata_generic.o # Should be last libata driver diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index bddb14e..f36da48 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -53,6 +53,7 @@ enum { AHCI_PCI_BAR = 5, + AHCI_MAX_PORTS = 32, AHCI_MAX_SG = 168, /* hardware max is 64K */ AHCI_DMA_BOUNDARY = 0xffffffff, AHCI_USE_CLUSTERING = 0, @@ -77,8 +78,9 @@ enum { RX_FIS_UNK = 0x60, /* offset of Unknown FIS data */ board_ahci = 0, - board_ahci_vt8251 = 1, - board_ahci_ign_iferr = 2, + board_ahci_pi = 1, + board_ahci_vt8251 = 2, + board_ahci_ign_iferr = 3, /* global controller registers */ HOST_CAP = 0x00, /* host capabilities */ @@ -167,9 +169,9 @@ enum { AHCI_FLAG_MSI = (1 << 0), /* ap->flags bits */ - AHCI_FLAG_RESET_NEEDS_CLO = (1 << 24), - AHCI_FLAG_NO_NCQ = (1 << 25), - AHCI_FLAG_IGN_IRQ_IF_ERR = (1 << 26), /* ignore IRQ_IF_ERR */ + AHCI_FLAG_NO_NCQ = (1 << 24), + AHCI_FLAG_IGN_IRQ_IF_ERR = (1 << 25), /* ignore IRQ_IF_ERR */ + AHCI_FLAG_HONOR_PI = (1 << 26), /* honor PORTS_IMPL */ }; struct ahci_cmd_hdr { @@ -216,6 +218,7 @@ static u8 ahci_check_status(struct ata_port *ap); static void ahci_freeze(struct ata_port *ap); static void ahci_thaw(struct ata_port *ap); static void ahci_error_handler(struct ata_port *ap); +static void ahci_vt8251_error_handler(struct ata_port *ap); static void ahci_post_internal_cmd(struct ata_queued_cmd *qc); static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg); static int ahci_port_resume(struct ata_port *ap); @@ -275,6 +278,37 @@ static const struct ata_port_operations ahci_ops = { .port_stop = ahci_port_stop, }; +static const struct ata_port_operations ahci_vt8251_ops = { + .port_disable = ata_port_disable, + + .check_status = ahci_check_status, + .check_altstatus = ahci_check_status, + .dev_select = ata_noop_dev_select, + + .tf_read = ahci_tf_read, + + .qc_prep = ahci_qc_prep, + .qc_issue = ahci_qc_issue, + + .irq_handler = ahci_interrupt, + .irq_clear = ahci_irq_clear, + + .scr_read = ahci_scr_read, + .scr_write = ahci_scr_write, + + .freeze = ahci_freeze, + .thaw = ahci_thaw, + + .error_handler = ahci_vt8251_error_handler, + .post_internal_cmd = ahci_post_internal_cmd, + + .port_suspend = ahci_port_suspend, + .port_resume = ahci_port_resume, + + .port_start = ahci_port_start, + .port_stop = ahci_port_stop, +}; + static const struct ata_port_info ahci_port_info[] = { /* board_ahci */ { @@ -286,16 +320,26 @@ static const struct ata_port_info ahci_port_info[] = { .udma_mask = 0x7f, /* udma0-6 ; FIXME */ .port_ops = &ahci_ops, }, + /* board_ahci_pi */ + { + .sht = &ahci_sht, + .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | + ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | + ATA_FLAG_SKIP_D2H_BSY | AHCI_FLAG_HONOR_PI, + .pio_mask = 0x1f, /* pio0-4 */ + .udma_mask = 0x7f, /* udma0-6 ; FIXME */ + .port_ops = &ahci_ops, + }, /* board_ahci_vt8251 */ { .sht = &ahci_sht, .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | ATA_FLAG_SKIP_D2H_BSY | - AHCI_FLAG_RESET_NEEDS_CLO | AHCI_FLAG_NO_NCQ, + ATA_FLAG_HRST_TO_RESUME | AHCI_FLAG_NO_NCQ, .pio_mask = 0x1f, /* pio0-4 */ .udma_mask = 0x7f, /* udma0-6 ; FIXME */ - .port_ops = &ahci_ops, + .port_ops = &ahci_vt8251_ops, }, /* board_ahci_ign_iferr */ { @@ -322,22 +366,22 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */ { PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */ { PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */ - { PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */ - { PCI_VDEVICE(INTEL, 0x2822), board_ahci }, /* ICH8 */ - { PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */ - { PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */ - { PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */ - { PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */ - { PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */ - { PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */ - { PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */ - { PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */ - { PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */ - { PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */ - { PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */ - { PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */ - { PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */ - { PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */ + { PCI_VDEVICE(INTEL, 0x2821), board_ahci_pi }, /* ICH8 */ + { PCI_VDEVICE(INTEL, 0x2822), board_ahci_pi }, /* ICH8 */ + { PCI_VDEVICE(INTEL, 0x2824), board_ahci_pi }, /* ICH8 */ + { PCI_VDEVICE(INTEL, 0x2829), board_ahci_pi }, /* ICH8M */ + { PCI_VDEVICE(INTEL, 0x282a), board_ahci_pi }, /* ICH8M */ + { PCI_VDEVICE(INTEL, 0x2922), board_ahci_pi }, /* ICH9 */ + { PCI_VDEVICE(INTEL, 0x2923), board_ahci_pi }, /* ICH9 */ + { PCI_VDEVICE(INTEL, 0x2924), board_ahci_pi }, /* ICH9 */ + { PCI_VDEVICE(INTEL, 0x2925), board_ahci_pi }, /* ICH9 */ + { PCI_VDEVICE(INTEL, 0x2927), board_ahci_pi }, /* ICH9 */ + { PCI_VDEVICE(INTEL, 0x2929), board_ahci_pi }, /* ICH9M */ + { PCI_VDEVICE(INTEL, 0x292a), board_ahci_pi }, /* ICH9M */ + { PCI_VDEVICE(INTEL, 0x292b), board_ahci_pi }, /* ICH9M */ + { PCI_VDEVICE(INTEL, 0x292f), board_ahci_pi }, /* ICH9M */ + { PCI_VDEVICE(INTEL, 0x294d), board_ahci_pi }, /* ICH9 */ + { PCI_VDEVICE(INTEL, 0x294e), board_ahci_pi }, /* ICH9M */ /* JMicron */ { PCI_VDEVICE(JMICRON, 0x2360), board_ahci_ign_iferr }, /* JMB360 */ @@ -372,6 +416,10 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 966 */ { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */ + /* Generic, PCI class code for AHCI */ + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, + 0x010601, 0xffffff, board_ahci }, + { } /* terminate list */ }; @@ -386,6 +434,11 @@ static struct pci_driver ahci_pci_driver = { }; +static inline int ahci_nr_ports(u32 cap) +{ + return (cap & 0x1f) + 1; +} + static inline unsigned long ahci_port_base_ul (unsigned long base, unsigned int port) { return base + 0x100 + (port * 0x80); @@ -559,9 +612,6 @@ static void ahci_power_down(void __iomem *port_mmio, u32 cap) static void ahci_init_port(void __iomem *port_mmio, u32 cap, dma_addr_t cmd_slot_dma, dma_addr_t rx_fis_dma) { - /* power up */ - ahci_power_up(port_mmio, cap); - /* enable FIS reception */ ahci_start_fis_rx(port_mmio, cap, cmd_slot_dma, rx_fis_dma); @@ -587,19 +637,17 @@ static int ahci_deinit_port(void __iomem *port_mmio, u32 cap, const char **emsg) return rc; } - /* put device into slumber mode */ - ahci_power_down(port_mmio, cap); - return 0; } static int ahci_reset_controller(void __iomem *mmio, struct pci_dev *pdev) { - u32 cap_save, tmp; + u32 cap_save, impl_save, tmp; cap_save = readl(mmio + HOST_CAP); cap_save &= ( (1<<28) | (1<<17) ); cap_save |= (1 << 27); + impl_save = readl(mmio + HOST_PORTS_IMPL); /* global controller reset */ tmp = readl(mmio + HOST_CTL); @@ -620,10 +668,21 @@ static int ahci_reset_controller(void __iomem *mmio, struct pci_dev *pdev) return -EIO; } + /* turn on AHCI mode */ writel(HOST_AHCI_EN, mmio + HOST_CTL); (void) readl(mmio + HOST_CTL); /* flush */ + + /* These write-once registers are normally cleared on reset. + * Restore BIOS values... which we HOPE were present before + * reset. + */ + if (!impl_save) { + impl_save = (1 << ahci_nr_ports(cap_save)) - 1; + dev_printk(KERN_WARNING, &pdev->dev, + "PORTS_IMPL is zero, forcing 0x%x\n", impl_save); + } writel(cap_save, mmio + HOST_CAP); - writel(0xf, mmio + HOST_PORTS_IMPL); + writel(impl_save, mmio + HOST_PORTS_IMPL); (void) readl(mmio + HOST_PORTS_IMPL); /* flush */ if (pdev->vendor == PCI_VENDOR_ID_INTEL) { @@ -639,7 +698,8 @@ static int ahci_reset_controller(void __iomem *mmio, struct pci_dev *pdev) } static void ahci_init_controller(void __iomem *mmio, struct pci_dev *pdev, - int n_ports, u32 cap) + int n_ports, unsigned int port_flags, + struct ahci_host_priv *hpriv) { int i, rc; u32 tmp; @@ -648,13 +708,12 @@ static void ahci_init_controller(void __iomem *mmio, struct pci_dev *pdev, void __iomem *port_mmio = ahci_port_base(mmio, i); const char *emsg = NULL; -#if 0 /* BIOSen initialize this incorrectly */ - if (!(hpriv->port_map & (1 << i))) + if ((port_flags & AHCI_FLAG_HONOR_PI) && + !(hpriv->port_map & (1 << i))) continue; -#endif /* make sure port is not active */ - rc = ahci_deinit_port(port_mmio, cap, &emsg); + rc = ahci_deinit_port(port_mmio, hpriv->cap, &emsg); if (rc) dev_printk(KERN_WARNING, &pdev->dev, "%s (%d)\n", emsg, rc); @@ -729,17 +788,6 @@ static int ahci_clo(struct ata_port *ap) return 0; } -static int ahci_prereset(struct ata_port *ap) -{ - if ((ap->flags & AHCI_FLAG_RESET_NEEDS_CLO) && - (ata_busy_wait(ap, ATA_BUSY, 1000) & ATA_BUSY)) { - /* ATA_BUSY hasn't cleared, so send a CLO */ - ahci_clo(ap); - } - - return ata_std_prereset(ap); -} - static int ahci_softreset(struct ata_port *ap, unsigned int *class) { struct ahci_port_priv *pp = ap->private_data; @@ -877,6 +925,31 @@ static int ahci_hardreset(struct ata_port *ap, unsigned int *class) return rc; } +static int ahci_vt8251_hardreset(struct ata_port *ap, unsigned int *class) +{ + void __iomem *mmio = ap->host->mmio_base; + void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no); + int rc; + + DPRINTK("ENTER\n"); + + ahci_stop_engine(port_mmio); + + rc = sata_port_hardreset(ap, sata_ehc_deb_timing(&ap->eh_context)); + + /* vt8251 needs SError cleared for the port to operate */ + ahci_scr_write(ap, SCR_ERROR, ahci_scr_read(ap, SCR_ERROR)); + + ahci_start_engine(port_mmio); + + DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class); + + /* vt8251 doesn't clear BSY on signature FIS reception, + * request follow-up softreset. + */ + return rc ?: -EAGAIN; +} + static void ahci_postreset(struct ata_port *ap, unsigned int *class) { void __iomem *port_mmio = (void __iomem *) ap->ioaddr.cmd_addr; @@ -1196,7 +1269,23 @@ static void ahci_error_handler(struct ata_port *ap) } /* perform recovery */ - ata_do_eh(ap, ahci_prereset, ahci_softreset, ahci_hardreset, + ata_do_eh(ap, ata_std_prereset, ahci_softreset, ahci_hardreset, + ahci_postreset); +} + +static void ahci_vt8251_error_handler(struct ata_port *ap) +{ + void __iomem *mmio = ap->host->mmio_base; + void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no); + + if (!(ap->pflags & ATA_PFLAG_FROZEN)) { + /* restart engine */ + ahci_stop_engine(port_mmio); + ahci_start_engine(port_mmio); + } + + /* perform recovery */ + ata_do_eh(ap, ata_std_prereset, ahci_softreset, ahci_vt8251_hardreset, ahci_postreset); } @@ -1226,7 +1315,9 @@ static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg) int rc; rc = ahci_deinit_port(port_mmio, hpriv->cap, &emsg); - if (rc) { + if (rc == 0) + ahci_power_down(port_mmio, hpriv->cap); + else { ata_port_printk(ap, KERN_ERR, "%s (%d)\n", emsg, rc); ahci_init_port(port_mmio, hpriv->cap, pp->cmd_slot_dma, pp->rx_fis_dma); @@ -1242,6 +1333,7 @@ static int ahci_port_resume(struct ata_port *ap) void __iomem *mmio = ap->host->mmio_base; void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no); + ahci_power_up(port_mmio, hpriv->cap); ahci_init_port(port_mmio, hpriv->cap, pp->cmd_slot_dma, pp->rx_fis_dma); return 0; @@ -1281,7 +1373,8 @@ static int ahci_pci_device_resume(struct pci_dev *pdev) if (rc) return rc; - ahci_init_controller(mmio, pdev, host->n_ports, hpriv->cap); + ahci_init_controller(mmio, pdev, host->n_ports, + host->ports[0]->flags, hpriv); } ata_host_resume(host); @@ -1347,6 +1440,9 @@ static int ahci_port_start(struct ata_port *ap) ap->private_data = pp; + /* power up port */ + ahci_power_up(port_mmio, hpriv->cap); + /* initialize port */ ahci_init_port(port_mmio, hpriv->cap, pp->cmd_slot_dma, pp->rx_fis_dma); @@ -1393,7 +1489,7 @@ static int ahci_host_init(struct ata_probe_ent *probe_ent) struct ahci_host_priv *hpriv = probe_ent->private_data; struct pci_dev *pdev = to_pci_dev(probe_ent->dev); void __iomem *mmio = probe_ent->mmio_base; - unsigned int i, using_dac; + unsigned int i, cap_n_ports, using_dac; int rc; rc = ahci_reset_controller(mmio, pdev); @@ -1402,10 +1498,34 @@ static int ahci_host_init(struct ata_probe_ent *probe_ent) hpriv->cap = readl(mmio + HOST_CAP); hpriv->port_map = readl(mmio + HOST_PORTS_IMPL); - probe_ent->n_ports = (hpriv->cap & 0x1f) + 1; + cap_n_ports = ahci_nr_ports(hpriv->cap); VPRINTK("cap 0x%x port_map 0x%x n_ports %d\n", - hpriv->cap, hpriv->port_map, probe_ent->n_ports); + hpriv->cap, hpriv->port_map, cap_n_ports); + + if (probe_ent->port_flags & AHCI_FLAG_HONOR_PI) { + unsigned int n_ports = cap_n_ports; + u32 port_map = hpriv->port_map; + int max_port = 0; + + for (i = 0; i < AHCI_MAX_PORTS && n_ports; i++) { + if (port_map & (1 << i)) { + n_ports--; + port_map &= ~(1 << i); + max_port = i; + } else + probe_ent->dummy_port_mask |= 1 << i; + } + + if (n_ports || port_map) + dev_printk(KERN_WARNING, &pdev->dev, + "nr_ports (%u) and implemented port map " + "(0x%x) don't match\n", + cap_n_ports, hpriv->port_map); + + probe_ent->n_ports = max_port + 1; + } else + probe_ent->n_ports = cap_n_ports; using_dac = hpriv->cap & HOST_CAP_64; if (using_dac && @@ -1437,7 +1557,8 @@ static int ahci_host_init(struct ata_probe_ent *probe_ent) for (i = 0; i < probe_ent->n_ports; i++) ahci_setup_port(&probe_ent->port[i], (unsigned long) mmio, i); - ahci_init_controller(mmio, pdev, probe_ent->n_ports, hpriv->cap); + ahci_init_controller(mmio, pdev, probe_ent->n_ports, + probe_ent->port_flags, hpriv); pci_set_master(pdev); diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c index 4a80ff9..908751d 100644 --- a/drivers/ata/ata_generic.c +++ b/drivers/ata/ata_generic.c @@ -26,7 +26,7 @@ #include <linux/libata.h> #define DRV_NAME "ata_generic" -#define DRV_VERSION "0.2.6" +#define DRV_VERSION "0.2.10" /* * A generic parallel ATA driver using libata @@ -109,7 +109,6 @@ static struct scsi_host_template generic_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -118,6 +117,8 @@ static struct scsi_host_template generic_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations generic_port_ops = { @@ -226,12 +227,14 @@ static struct pci_driver ata_generic_pci_driver = { .name = DRV_NAME, .id_table = ata_generic, .probe = ata_generic_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init ata_generic_init(void) { - return pci_module_init(&ata_generic_pci_driver); + return pci_register_driver(&ata_generic_pci_driver); } diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 720174d..c7de0bb 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -40,7 +40,7 @@ * Documentation * Publically available from Intel web site. Errata documentation * is also publically available. As an aide to anyone hacking on this - * driver the list of errata that are relevant is below.going back to + * driver the list of errata that are relevant is below, going back to * PIIX4. Older device documentation is now a bit tricky to find. * * The chipsets all follow very much the same design. The orginal Triton @@ -93,7 +93,7 @@ #include <linux/libata.h> #define DRV_NAME "ata_piix" -#define DRV_VERSION "2.00ac6" +#define DRV_VERSION "2.00ac7" enum { PIIX_IOCFG = 0x54, /* IDE I/O configuration register */ @@ -101,11 +101,13 @@ enum { ICH5_PCS = 0x92, /* port control and status */ PIIX_SCC = 0x0A, /* sub-class code register */ - PIIX_FLAG_IGNORE_PCS = (1 << 25), /* ignore PCS present bits */ PIIX_FLAG_SCR = (1 << 26), /* SCR available */ PIIX_FLAG_AHCI = (1 << 27), /* AHCI possible */ PIIX_FLAG_CHECKINTR = (1 << 28), /* make sure PCI INTx enabled */ + PIIX_PATA_FLAGS = ATA_FLAG_SLAVE_POSS, + PIIX_SATA_FLAGS = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR, + /* combined mode. if set, PATA is channel 0. * if clear, PATA is channel 1. */ @@ -122,11 +124,10 @@ enum { ich_pata_100 = 3, /* ICH up to UDMA 100 */ ich_pata_133 = 4, /* ICH up to UDMA 133 */ ich5_sata = 5, - esb_sata = 6, - ich6_sata = 7, - ich6_sata_ahci = 8, - ich6m_sata_ahci = 9, - ich8_sata_ahci = 10, + ich6_sata = 6, + ich6_sata_ahci = 7, + ich6m_sata_ahci = 8, + ich8_sata_ahci = 9, /* constants for mapping table */ P0 = 0, /* port 0 */ @@ -143,13 +144,11 @@ enum { struct piix_map_db { const u32 mask; const u16 port_enable; - const int present_shift; const int map[][4]; }; struct piix_host_priv { const int *map; - const struct piix_map_db *map_db; }; static int piix_init_one (struct pci_dev *pdev, @@ -214,9 +213,9 @@ static const struct pci_device_id piix_pci_tbl[] = { /* 82801EB (ICH5) */ { 0x8086, 0x24df, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata }, /* 6300ESB (ICH5 variant with broken PCS present bits) */ - { 0x8086, 0x25a3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, esb_sata }, + { 0x8086, 0x25a3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata }, /* 6300ESB pretending RAID */ - { 0x8086, 0x25b0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, esb_sata }, + { 0x8086, 0x25b0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata }, /* 82801FB/FW (ICH6/ICH6W) */ { 0x8086, 0x2651, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata }, /* 82801FR/FRW (ICH6R/ICH6RW) */ @@ -367,7 +366,6 @@ static const struct ata_port_operations piix_sata_ops = { static const struct piix_map_db ich5_map_db = { .mask = 0x7, .port_enable = 0x3, - .present_shift = 4, .map = { /* PM PS SM SS MAP */ { P0, NA, P1, NA }, /* 000b */ @@ -384,7 +382,6 @@ static const struct piix_map_db ich5_map_db = { static const struct piix_map_db ich6_map_db = { .mask = 0x3, .port_enable = 0xf, - .present_shift = 4, .map = { /* PM PS SM SS MAP */ { P0, P2, P1, P3 }, /* 00b */ @@ -397,7 +394,6 @@ static const struct piix_map_db ich6_map_db = { static const struct piix_map_db ich6m_map_db = { .mask = 0x3, .port_enable = 0x5, - .present_shift = 4, /* Map 01b isn't specified in the doc but some notebooks use * it anyway. MAP 01b have been spotted on both ICH6M and @@ -415,7 +411,6 @@ static const struct piix_map_db ich6m_map_db = { static const struct piix_map_db ich8_map_db = { .mask = 0x3, .port_enable = 0x3, - .present_shift = 8, .map = { /* PM PS SM SS MAP */ { P0, P2, P1, P3 }, /* 00b (hardwired when in AHCI) */ @@ -427,7 +422,6 @@ static const struct piix_map_db ich8_map_db = { static const struct piix_map_db *piix_map_db_table[] = { [ich5_sata] = &ich5_map_db, - [esb_sata] = &ich5_map_db, [ich6_sata] = &ich6_map_db, [ich6_sata_ahci] = &ich6_map_db, [ich6m_sata_ahci] = &ich6m_map_db, @@ -438,7 +432,7 @@ static struct ata_port_info piix_port_info[] = { /* piix_pata_33: 0: PIIX3 or 4 at 33MHz */ { .sht = &piix_sht, - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + .flags = PIIX_PATA_FLAGS, .pio_mask = 0x1f, /* pio0-4 */ .mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */ .udma_mask = ATA_UDMA_MASK_40C, @@ -448,7 +442,7 @@ static struct ata_port_info piix_port_info[] = { /* ich_pata_33: 1 ICH0 - ICH at 33Mhz*/ { .sht = &piix_sht, - .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS, + .flags = PIIX_PATA_FLAGS, .pio_mask = 0x1f, /* pio 0-4 */ .mwdma_mask = 0x06, /* Check: maybe 0x07 */ .udma_mask = ATA_UDMA2, /* UDMA33 */ @@ -457,7 +451,7 @@ static struct ata_port_info piix_port_info[] = { /* ich_pata_66: 2 ICH controllers up to 66MHz */ { .sht = &piix_sht, - .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS, + .flags = PIIX_PATA_FLAGS, .pio_mask = 0x1f, /* pio 0-4 */ .mwdma_mask = 0x06, /* MWDMA0 is broken on chip */ .udma_mask = ATA_UDMA4, @@ -467,7 +461,7 @@ static struct ata_port_info piix_port_info[] = { /* ich_pata_100: 3 */ { .sht = &piix_sht, - .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS | PIIX_FLAG_CHECKINTR, + .flags = PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR, .pio_mask = 0x1f, /* pio0-4 */ .mwdma_mask = 0x06, /* mwdma1-2 */ .udma_mask = ATA_UDMA5, /* udma0-5 */ @@ -477,7 +471,7 @@ static struct ata_port_info piix_port_info[] = { /* ich_pata_133: 4 ICH with full UDMA6 */ { .sht = &piix_sht, - .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS | PIIX_FLAG_CHECKINTR, + .flags = PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR, .pio_mask = 0x1f, /* pio 0-4 */ .mwdma_mask = 0x06, /* Check: maybe 0x07 */ .udma_mask = ATA_UDMA6, /* UDMA133 */ @@ -487,41 +481,27 @@ static struct ata_port_info piix_port_info[] = { /* ich5_sata: 5 */ { .sht = &piix_sht, - .flags = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR | - PIIX_FLAG_IGNORE_PCS, - .pio_mask = 0x1f, /* pio0-4 */ - .mwdma_mask = 0x07, /* mwdma0-2 */ - .udma_mask = 0x7f, /* udma0-6 */ - .port_ops = &piix_sata_ops, - }, - - /* i6300esb_sata: 6 */ - { - .sht = &piix_sht, - .flags = ATA_FLAG_SATA | - PIIX_FLAG_CHECKINTR | PIIX_FLAG_IGNORE_PCS, + .flags = PIIX_SATA_FLAGS, .pio_mask = 0x1f, /* pio0-4 */ .mwdma_mask = 0x07, /* mwdma0-2 */ .udma_mask = 0x7f, /* udma0-6 */ .port_ops = &piix_sata_ops, }, - /* ich6_sata: 7 */ + /* ich6_sata: 6 */ { .sht = &piix_sht, - .flags = ATA_FLAG_SATA | - PIIX_FLAG_CHECKINTR | PIIX_FLAG_SCR, + .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR, .pio_mask = 0x1f, /* pio0-4 */ .mwdma_mask = 0x07, /* mwdma0-2 */ .udma_mask = 0x7f, /* udma0-6 */ .port_ops = &piix_sata_ops, }, - /* ich6_sata_ahci: 8 */ + /* ich6_sata_ahci: 7 */ { .sht = &piix_sht, - .flags = ATA_FLAG_SATA | - PIIX_FLAG_CHECKINTR | PIIX_FLAG_SCR | + .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR | PIIX_FLAG_AHCI, .pio_mask = 0x1f, /* pio0-4 */ .mwdma_mask = 0x07, /* mwdma0-2 */ @@ -529,11 +509,10 @@ static struct ata_port_info piix_port_info[] = { .port_ops = &piix_sata_ops, }, - /* ich6m_sata_ahci: 9 */ + /* ich6m_sata_ahci: 8 */ { .sht = &piix_sht, - .flags = ATA_FLAG_SATA | - PIIX_FLAG_CHECKINTR | PIIX_FLAG_SCR | + .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR | PIIX_FLAG_AHCI, .pio_mask = 0x1f, /* pio0-4 */ .mwdma_mask = 0x07, /* mwdma0-2 */ @@ -541,11 +520,10 @@ static struct ata_port_info piix_port_info[] = { .port_ops = &piix_sata_ops, }, - /* ich8_sata_ahci: 10 */ + /* ich8_sata_ahci: 9 */ { .sht = &piix_sht, - .flags = ATA_FLAG_SATA | - PIIX_FLAG_CHECKINTR | PIIX_FLAG_SCR | + .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR | PIIX_FLAG_AHCI, .pio_mask = 0x1f, /* pio0-4 */ .mwdma_mask = 0x07, /* mwdma0-2 */ @@ -566,10 +544,22 @@ MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, piix_pci_tbl); MODULE_VERSION(DRV_VERSION); -static int force_pcs = 0; -module_param(force_pcs, int, 0444); -MODULE_PARM_DESC(force_pcs, "force honoring or ignoring PCS to work around " - "device mis-detection (0=default, 1=ignore PCS, 2=honor PCS)"); +struct ich_laptop { + u16 device; + u16 subvendor; + u16 subdevice; +}; + +/* + * List of laptops that use short cables rather than 80 wire + */ + +static const struct ich_laptop ich_laptop[] = { + /* devid, subvendor, subdev */ + { 0x27DF, 0x0005, 0x0280 }, /* ICH7 on Acer 5602WLMi */ + /* end marker */ + { 0, } +}; /** * piix_pata_cbl_detect - Probe host controller cable detect info @@ -585,12 +575,24 @@ MODULE_PARM_DESC(force_pcs, "force honoring or ignoring PCS to work around " static void ich_pata_cbl_detect(struct ata_port *ap) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); + const struct ich_laptop *lap = &ich_laptop[0]; u8 tmp, mask; /* no 80c support in host controller? */ if ((ap->udma_mask & ~ATA_UDMA_MASK_40C) == 0) goto cbl40; + /* Check for specials - Acer Aspire 5602WLMi */ + while (lap->device) { + if (lap->device == pdev->device && + lap->subvendor == pdev->subsystem_vendor && + lap->subdevice == pdev->subsystem_device) { + ap->cbl = ATA_CBL_PATA40_SHORT; + return; + } + lap++; + } + /* check BIOS cable detect results */ mask = ap->port_no == 0 ? PIIX_80C_PRI : PIIX_80C_SEC; pci_read_config_byte(pdev, PIIX_IOCFG, &tmp); @@ -659,84 +661,9 @@ static void ich_pata_error_handler(struct ata_port *ap) ata_std_postreset); } -/** - * piix_sata_present_mask - determine present mask for SATA host controller - * @ap: Target port - * - * Reads SATA PCI device's PCI config register Port Configuration - * and Status (PCS) to determine port and device availability. - * - * LOCKING: - * None (inherited from caller). - * - * RETURNS: - * determined present_mask - */ -static unsigned int piix_sata_present_mask(struct ata_port *ap) -{ - struct pci_dev *pdev = to_pci_dev(ap->host->dev); - struct piix_host_priv *hpriv = ap->host->private_data; - const unsigned int *map = hpriv->map; - int base = 2 * ap->port_no; - unsigned int present_mask = 0; - int port, i; - u16 pcs; - - pci_read_config_word(pdev, ICH5_PCS, &pcs); - DPRINTK("ata%u: ENTER, pcs=0x%x base=%d\n", ap->id, pcs, base); - - for (i = 0; i < 2; i++) { - port = map[base + i]; - if (port < 0) - continue; - if ((ap->flags & PIIX_FLAG_IGNORE_PCS) || - (pcs & 1 << (hpriv->map_db->present_shift + port))) - present_mask |= 1 << i; - } - - DPRINTK("ata%u: LEAVE, pcs=0x%x present_mask=0x%x\n", - ap->id, pcs, present_mask); - - return present_mask; -} - -/** - * piix_sata_softreset - reset SATA host port via ATA SRST - * @ap: port to reset - * @classes: resulting classes of attached devices - * - * Reset SATA host port via ATA SRST. On controllers with - * reliable PCS present bits, the bits are used to determine - * device presence. - * - * LOCKING: - * Kernel thread context (may sleep) - * - * RETURNS: - * 0 on success, -errno otherwise. - */ -static int piix_sata_softreset(struct ata_port *ap, unsigned int *classes) -{ - unsigned int present_mask; - int i, rc; - - present_mask = piix_sata_present_mask(ap); - - rc = ata_std_softreset(ap, classes); - if (rc) - return rc; - - for (i = 0; i < ATA_MAX_DEVICES; i++) { - if (!(present_mask & (1 << i))) - classes[i] = ATA_DEV_NONE; - } - - return 0; -} - static void piix_sata_error_handler(struct ata_port *ap) { - ata_bmdma_drive_eh(ap, ata_std_prereset, piix_sata_softreset, NULL, + ata_bmdma_drive_eh(ap, ata_std_prereset, ata_std_softreset, NULL, ata_std_postreset); } @@ -1051,18 +978,6 @@ static void __devinit piix_init_pcs(struct pci_dev *pdev, pci_write_config_word(pdev, ICH5_PCS, new_pcs); msleep(150); } - - if (force_pcs == 1) { - dev_printk(KERN_INFO, &pdev->dev, - "force ignoring PCS (0x%x)\n", new_pcs); - pinfo[0].flags |= PIIX_FLAG_IGNORE_PCS; - pinfo[1].flags |= PIIX_FLAG_IGNORE_PCS; - } else if (force_pcs == 2) { - dev_printk(KERN_INFO, &pdev->dev, - "force honoring PCS (0x%x)\n", new_pcs); - pinfo[0].flags &= ~PIIX_FLAG_IGNORE_PCS; - pinfo[1].flags &= ~PIIX_FLAG_IGNORE_PCS; - } } static void __devinit piix_init_sata_map(struct pci_dev *pdev, @@ -1112,7 +1027,6 @@ static void __devinit piix_init_sata_map(struct pci_dev *pdev, "invalid MAP value %u\n", map_value); hpriv->map = map; - hpriv->map_db = map_db; } /** diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index b5f2da6..8816e30 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -199,7 +199,8 @@ static const u8 ata_rw_cmds[] = { /** * ata_rwcmd_protocol - set taskfile r/w commands and protocol - * @qc: command to examine and configure + * @tf: command to examine and configure + * @dev: device tf belongs to * * Examine the device configuration and tf->flags to calculate * the proper read/write commands and protocol to use. @@ -207,10 +208,8 @@ static const u8 ata_rw_cmds[] = { * LOCKING: * caller. */ -int ata_rwcmd_protocol(struct ata_queued_cmd *qc) +static int ata_rwcmd_protocol(struct ata_taskfile *tf, struct ata_device *dev) { - struct ata_taskfile *tf = &qc->tf; - struct ata_device *dev = qc->dev; u8 cmd; int index, fua, lba48, write; @@ -222,7 +221,7 @@ int ata_rwcmd_protocol(struct ata_queued_cmd *qc) if (dev->flags & ATA_DFLAG_PIO) { tf->protocol = ATA_PROT_PIO; index = dev->multi_count ? 0 : 8; - } else if (lba48 && (qc->ap->flags & ATA_FLAG_PIO_LBA48)) { + } else if (lba48 && (dev->ap->flags & ATA_FLAG_PIO_LBA48)) { /* Unable to use DMA due to host limitation */ tf->protocol = ATA_PROT_PIO; index = dev->multi_count ? 0 : 8; @@ -240,6 +239,174 @@ int ata_rwcmd_protocol(struct ata_queued_cmd *qc) } /** + * ata_tf_read_block - Read block address from ATA taskfile + * @tf: ATA taskfile of interest + * @dev: ATA device @tf belongs to + * + * LOCKING: + * None. + * + * Read block address from @tf. This function can handle all + * three address formats - LBA, LBA48 and CHS. tf->protocol and + * flags select the address format to use. + * + * RETURNS: + * Block address read from @tf. + */ +u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev) +{ + u64 block = 0; + + if (tf->flags & ATA_TFLAG_LBA) { + if (tf->flags & ATA_TFLAG_LBA48) { + block |= (u64)tf->hob_lbah << 40; + block |= (u64)tf->hob_lbam << 32; + block |= tf->hob_lbal << 24; + } else + block |= (tf->device & 0xf) << 24; + + block |= tf->lbah << 16; + block |= tf->lbam << 8; + block |= tf->lbal; + } else { + u32 cyl, head, sect; + + cyl = tf->lbam | (tf->lbah << 8); + head = tf->device & 0xf; + sect = tf->lbal; + + block = (cyl * dev->heads + head) * dev->sectors + sect; + } + + return block; +} + +/** + * ata_build_rw_tf - Build ATA taskfile for given read/write request + * @tf: Target ATA taskfile + * @dev: ATA device @tf belongs to + * @block: Block address + * @n_block: Number of blocks + * @tf_flags: RW/FUA etc... + * @tag: tag + * + * LOCKING: + * None. + * + * Build ATA taskfile @tf for read/write request described by + * @block, @n_block, @tf_flags and @tag on @dev. + * + * RETURNS: + * + * 0 on success, -ERANGE if the request is too large for @dev, + * -EINVAL if the request is invalid. + */ +int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, + u64 block, u32 n_block, unsigned int tf_flags, + unsigned int tag) +{ + tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; + tf->flags |= tf_flags; + + if ((dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF | + ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ && + likely(tag != ATA_TAG_INTERNAL)) { + /* yay, NCQ */ + if (!lba_48_ok(block, n_block)) + return -ERANGE; + + tf->protocol = ATA_PROT_NCQ; + tf->flags |= ATA_TFLAG_LBA | ATA_TFLAG_LBA48; + + if (tf->flags & ATA_TFLAG_WRITE) + tf->command = ATA_CMD_FPDMA_WRITE; + else + tf->command = ATA_CMD_FPDMA_READ; + + tf->nsect = tag << 3; + tf->hob_feature = (n_block >> 8) & 0xff; + tf->feature = n_block & 0xff; + + tf->hob_lbah = (block >> 40) & 0xff; + tf->hob_lbam = (block >> 32) & 0xff; + tf->hob_lbal = (block >> 24) & 0xff; + tf->lbah = (block >> 16) & 0xff; + tf->lbam = (block >> 8) & 0xff; + tf->lbal = block & 0xff; + + tf->device = 1 << 6; + if (tf->flags & ATA_TFLAG_FUA) + tf->device |= 1 << 7; + } else if (dev->flags & ATA_DFLAG_LBA) { + tf->flags |= ATA_TFLAG_LBA; + + if (lba_28_ok(block, n_block)) { + /* use LBA28 */ + tf->device |= (block >> 24) & 0xf; + } else if (lba_48_ok(block, n_block)) { + if (!(dev->flags & ATA_DFLAG_LBA48)) + return -ERANGE; + + /* use LBA48 */ + tf->flags |= ATA_TFLAG_LBA48; + + tf->hob_nsect = (n_block >> 8) & 0xff; + + tf->hob_lbah = (block >> 40) & 0xff; + tf->hob_lbam = (block >> 32) & 0xff; + tf->hob_lbal = (block >> 24) & 0xff; + } else + /* request too large even for LBA48 */ + return -ERANGE; + + if (unlikely(ata_rwcmd_protocol(tf, dev) < 0)) + return -EINVAL; + + tf->nsect = n_block & 0xff; + + tf->lbah = (block >> 16) & 0xff; + tf->lbam = (block >> 8) & 0xff; + tf->lbal = block & 0xff; + + tf->device |= ATA_LBA; + } else { + /* CHS */ + u32 sect, head, cyl, track; + + /* The request -may- be too large for CHS addressing. */ + if (!lba_28_ok(block, n_block)) + return -ERANGE; + + if (unlikely(ata_rwcmd_protocol(tf, dev) < 0)) + return -EINVAL; + + /* Convert LBA to CHS */ + track = (u32)block / dev->sectors; + cyl = track / dev->heads; + head = track % dev->heads; + sect = (u32)block % dev->sectors + 1; + + DPRINTK("block %u track %u cyl %u head %u sect %u\n", + (u32)block, track, cyl, head, sect); + + /* Check whether the converted CHS can fit. + Cylinder: 0-65535 + Head: 0-15 + Sector: 1-255*/ + if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect)) + return -ERANGE; + + tf->nsect = n_block & 0xff; /* Sector count 0 means 256 sectors */ + tf->lbal = sect; + tf->lbam = cyl; + tf->lbah = cyl >> 8; + tf->device |= head; + } + + return 0; +} + +/** * ata_pack_xfermask - Pack pio, mwdma and udma masks into xfer_mask * @pio_mask: pio_mask * @mwdma_mask: mwdma_mask @@ -997,13 +1164,13 @@ void ata_qc_complete_internal(struct ata_queued_cmd *qc) } /** - * ata_exec_internal - execute libata internal command + * ata_exec_internal_sg - execute libata internal command * @dev: Device to which the command is sent * @tf: Taskfile registers for the command and the result * @cdb: CDB for packet command * @dma_dir: Data tranfer direction of the command - * @buf: Data buffer of the command - * @buflen: Length of data buffer + * @sg: sg list for the data buffer of the command + * @n_elem: Number of sg entries * * Executes libata internal command with timeout. @tf contains * command on entry and result on return. Timeout and error @@ -1017,9 +1184,10 @@ void ata_qc_complete_internal(struct ata_queued_cmd *qc) * RETURNS: * Zero on success, AC_ERR_* mask on failure */ -unsigned ata_exec_internal(struct ata_device *dev, - struct ata_taskfile *tf, const u8 *cdb, - int dma_dir, void *buf, unsigned int buflen) +unsigned ata_exec_internal_sg(struct ata_device *dev, + struct ata_taskfile *tf, const u8 *cdb, + int dma_dir, struct scatterlist *sg, + unsigned int n_elem) { struct ata_port *ap = dev->ap; u8 command = tf->command; @@ -1075,7 +1243,12 @@ unsigned ata_exec_internal(struct ata_device *dev, qc->flags |= ATA_QCFLAG_RESULT_TF; qc->dma_dir = dma_dir; if (dma_dir != DMA_NONE) { - ata_sg_init_one(qc, buf, buflen); + unsigned int i, buflen = 0; + + for (i = 0; i < n_elem; i++) + buflen += sg[i].length; + + ata_sg_init(qc, sg, n_elem); qc->nsect = buflen / ATA_SECT_SIZE; } @@ -1159,6 +1332,35 @@ unsigned ata_exec_internal(struct ata_device *dev, } /** + * ata_exec_internal_sg - execute libata internal command + * @dev: Device to which the command is sent + * @tf: Taskfile registers for the command and the result + * @cdb: CDB for packet command + * @dma_dir: Data tranfer direction of the command + * @buf: Data buffer of the command + * @buflen: Length of data buffer + * + * Wrapper around ata_exec_internal_sg() which takes simple + * buffer instead of sg list. + * + * LOCKING: + * None. Should be called with kernel context, might sleep. + * + * RETURNS: + * Zero on success, AC_ERR_* mask on failure + */ +unsigned ata_exec_internal(struct ata_device *dev, + struct ata_taskfile *tf, const u8 *cdb, + int dma_dir, void *buf, unsigned int buflen) +{ + struct scatterlist sg; + + sg_init_one(&sg, buf, buflen); + + return ata_exec_internal_sg(dev, tf, cdb, dma_dir, &sg, 1); +} + +/** * ata_do_simple_cmd - execute simple internal command * @dev: Device to which the command is sent * @cmd: Opcode to execute @@ -1222,7 +1424,7 @@ unsigned int ata_pio_need_iordy(const struct ata_device *adev) * ata_dev_read_id - Read ID data from the specified device * @dev: target device * @p_class: pointer to class of the target device (may be changed) - * @post_reset: is this read ID post-reset? + * @flags: ATA_READID_* flags * @id: buffer to read IDENTIFY data into * * Read ID data from the specified device. ATA_CMD_ID_ATA is @@ -1237,7 +1439,7 @@ unsigned int ata_pio_need_iordy(const struct ata_device *adev) * 0 on success, -errno otherwise. */ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, - int post_reset, u16 *id) + unsigned int flags, u16 *id) { struct ata_port *ap = dev->ap; unsigned int class = *p_class; @@ -1269,10 +1471,17 @@ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, } tf.protocol = ATA_PROT_PIO; + tf.flags |= ATA_TFLAG_POLLING; /* for polling presence detection */ err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE, id, sizeof(id[0]) * ATA_ID_WORDS); if (err_mask) { + if (err_mask & AC_ERR_NODEV_HINT) { + DPRINTK("ata%u.%d: NODEV after polling detection\n", + ap->id, dev->devno); + return -ENOENT; + } + rc = -EIO; reason = "I/O error"; goto err_out; @@ -1292,7 +1501,7 @@ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, goto err_out; } - if (post_reset && class == ATA_DEV_ATA) { + if ((flags & ATA_READID_POSTRESET) && class == ATA_DEV_ATA) { /* * The exact sequence expected by certain pre-ATA4 drives is: * SRST RESET @@ -1312,7 +1521,7 @@ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, /* current CHS translation info (id[53-58]) might be * changed. reread the identify device info. */ - post_reset = 0; + flags &= ~ATA_READID_POSTRESET; goto retry; } } @@ -1343,7 +1552,10 @@ static void ata_dev_config_ncq(struct ata_device *dev, desc[0] = '\0'; return; } - + if (ata_device_blacklisted(dev) & ATA_HORKAGE_NONCQ) { + snprintf(desc, desc_sz, "NCQ (not used)"); + return; + } if (ap->flags & ATA_FLAG_NCQ) { hdepth = min(ap->scsi_host->can_queue, ATA_MAX_QUEUE - 1); dev->flags |= ATA_DFLAG_NCQ; @@ -1372,7 +1584,6 @@ static void ata_set_port_max_cmd_len(struct ata_port *ap) /** * ata_dev_configure - Configure the specified ATA/ATAPI device * @dev: Target device to configure - * @print_info: Enable device info printout * * Configure @dev according to @dev->id. Generic and low-level * driver specific fixups are also applied. @@ -1383,9 +1594,10 @@ static void ata_set_port_max_cmd_len(struct ata_port *ap) * RETURNS: * 0 on success, -errno otherwise */ -int ata_dev_configure(struct ata_device *dev, int print_info) +int ata_dev_configure(struct ata_device *dev) { struct ata_port *ap = dev->ap; + int print_info = ap->eh_context.i.flags & ATA_EHI_PRINTINFO; const u16 *id = dev->id; unsigned int xfer_mask; char revbuf[7]; /* XYZ-99\0 */ @@ -1452,6 +1664,10 @@ int ata_dev_configure(struct ata_device *dev, int print_info) if (ata_id_has_lba48(id)) { dev->flags |= ATA_DFLAG_LBA48; lba_desc = "LBA48"; + + if (dev->n_sectors >= (1UL << 28) && + ata_id_has_flush_ext(id)) + dev->flags |= ATA_DFLAG_FLUSH_EXT; } /* config NCQ */ @@ -1528,6 +1744,11 @@ int ata_dev_configure(struct ata_device *dev, int print_info) cdb_intr_string); } + /* determine max_sectors */ + dev->max_sectors = ATA_MAX_SECTORS; + if (dev->flags & ATA_DFLAG_LBA48) + dev->max_sectors = ATA_MAX_SECTORS_LBA48; + if (dev->horkage & ATA_HORKAGE_DIAGNOSTIC) { /* Let the user know. We don't want to disallow opens for rescue purposes, or in case the vendor is just a blithering @@ -1629,11 +1850,14 @@ int ata_bus_probe(struct ata_port *ap) if (!ata_dev_enabled(dev)) continue; - rc = ata_dev_read_id(dev, &dev->class, 1, dev->id); + rc = ata_dev_read_id(dev, &dev->class, ATA_READID_POSTRESET, + dev->id); if (rc) goto fail; - rc = ata_dev_configure(dev, 1); + ap->eh_context.i.flags |= ATA_EHI_PRINTINFO; + rc = ata_dev_configure(dev); + ap->eh_context.i.flags &= ~ATA_EHI_PRINTINFO; if (rc) goto fail; } @@ -2151,6 +2375,7 @@ int ata_down_xfermask_limit(struct ata_device *dev, int force_pio0) static int ata_dev_set_mode(struct ata_device *dev) { + struct ata_eh_context *ehc = &dev->ap->eh_context; unsigned int err_mask; int rc; @@ -2165,7 +2390,9 @@ static int ata_dev_set_mode(struct ata_device *dev) return -EIO; } + ehc->i.flags |= ATA_EHI_POST_SETMODE; rc = ata_dev_revalidate(dev, 0); + ehc->i.flags &= ~ATA_EHI_POST_SETMODE; if (rc) return rc; @@ -2323,11 +2550,14 @@ static inline void ata_tf_to_host(struct ata_port *ap, * Sleep until ATA Status register bit BSY clears, * or a timeout occurs. * - * LOCKING: None. + * LOCKING: + * Kernel thread context (may sleep). + * + * RETURNS: + * 0 on success, -errno otherwise. */ - -unsigned int ata_busy_sleep (struct ata_port *ap, - unsigned long tmout_pat, unsigned long tmout) +int ata_busy_sleep(struct ata_port *ap, + unsigned long tmout_pat, unsigned long tmout) { unsigned long timer_start, timeout; u8 status; @@ -2335,27 +2565,32 @@ unsigned int ata_busy_sleep (struct ata_port *ap, status = ata_busy_wait(ap, ATA_BUSY, 300); timer_start = jiffies; timeout = timer_start + tmout_pat; - while ((status & ATA_BUSY) && (time_before(jiffies, timeout))) { + while (status != 0xff && (status & ATA_BUSY) && + time_before(jiffies, timeout)) { msleep(50); status = ata_busy_wait(ap, ATA_BUSY, 3); } - if (status & ATA_BUSY) + if (status != 0xff && (status & ATA_BUSY)) ata_port_printk(ap, KERN_WARNING, "port is slow to respond, please be patient " "(Status 0x%x)\n", status); timeout = timer_start + tmout; - while ((status & ATA_BUSY) && (time_before(jiffies, timeout))) { + while (status != 0xff && (status & ATA_BUSY) && + time_before(jiffies, timeout)) { msleep(50); status = ata_chk_status(ap); } + if (status == 0xff) + return -ENODEV; + if (status & ATA_BUSY) { ata_port_printk(ap, KERN_ERR, "port failed to respond " "(%lu secs, Status 0x%x)\n", tmout / HZ, status); - return 1; + return -EBUSY; } return 0; @@ -2446,10 +2681,8 @@ static unsigned int ata_bus_softreset(struct ata_port *ap, * the bus shows 0xFF because the odd clown forgets the D7 * pulldown resistor. */ - if (ata_check_status(ap) == 0xFF) { - ata_port_printk(ap, KERN_ERR, "SRST failed (status 0xFF)\n"); - return AC_ERR_OTHER; - } + if (ata_check_status(ap) == 0xFF) + return 0; ata_bus_post_reset(ap, devmask); @@ -2775,9 +3008,9 @@ int ata_std_softreset(struct ata_port *ap, unsigned int *classes) } /** - * sata_std_hardreset - reset host port via SATA phy reset + * sata_port_hardreset - reset port via SATA phy reset * @ap: port to reset - * @class: resulting class of attached device + * @timing: timing parameters { interval, duratinon, timeout } in msec * * SATA phy-reset host port using DET bits of SControl register. * @@ -2787,10 +3020,8 @@ int ata_std_softreset(struct ata_port *ap, unsigned int *classes) * RETURNS: * 0 on success, -errno otherwise. */ -int sata_std_hardreset(struct ata_port *ap, unsigned int *class) +int sata_port_hardreset(struct ata_port *ap, const unsigned long *timing) { - struct ata_eh_context *ehc = &ap->eh_context; - const unsigned long *timing = sata_ehc_deb_timing(ehc); u32 scontrol; int rc; @@ -2803,24 +3034,24 @@ int sata_std_hardreset(struct ata_port *ap, unsigned int *class) * and Sil3124. */ if ((rc = sata_scr_read(ap, SCR_CONTROL, &scontrol))) - return rc; + goto out; scontrol = (scontrol & 0x0f0) | 0x304; if ((rc = sata_scr_write(ap, SCR_CONTROL, scontrol))) - return rc; + goto out; sata_set_spd(ap); } /* issue phy wake/reset */ if ((rc = sata_scr_read(ap, SCR_CONTROL, &scontrol))) - return rc; + goto out; scontrol = (scontrol & 0x0f0) | 0x301; if ((rc = sata_scr_write_flush(ap, SCR_CONTROL, scontrol))) - return rc; + goto out; /* Couldn't find anything in SATA I/II specs, but AHCI-1.1 * 10.4.2 says at least 1 ms. @@ -2828,7 +3059,40 @@ int sata_std_hardreset(struct ata_port *ap, unsigned int *class) msleep(1); /* bring phy back */ - sata_phy_resume(ap, timing); + rc = sata_phy_resume(ap, timing); + out: + DPRINTK("EXIT, rc=%d\n", rc); + return rc; +} + +/** + * sata_std_hardreset - reset host port via SATA phy reset + * @ap: port to reset + * @class: resulting class of attached device + * + * SATA phy-reset host port using DET bits of SControl register, + * wait for !BSY and classify the attached device. + * + * LOCKING: + * Kernel thread context (may sleep) + * + * RETURNS: + * 0 on success, -errno otherwise. + */ +int sata_std_hardreset(struct ata_port *ap, unsigned int *class) +{ + const unsigned long *timing = sata_ehc_deb_timing(&ap->eh_context); + int rc; + + DPRINTK("ENTER\n"); + + /* do hardreset */ + rc = sata_port_hardreset(ap, timing); + if (rc) { + ata_port_printk(ap, KERN_ERR, + "COMRESET failed (errno=%d)\n", rc); + return rc; + } /* TODO: phy layer with polling, timeouts, etc. */ if (ata_port_offline(ap)) { @@ -2967,7 +3231,7 @@ static int ata_dev_same_device(struct ata_device *dev, unsigned int new_class, /** * ata_dev_revalidate - Revalidate ATA device * @dev: device to revalidate - * @post_reset: is this revalidation after reset? + * @readid_flags: read ID flags * * Re-read IDENTIFY page and make sure @dev is still attached to * the port. @@ -2978,7 +3242,7 @@ static int ata_dev_same_device(struct ata_device *dev, unsigned int new_class, * RETURNS: * 0 on success, negative errno otherwise */ -int ata_dev_revalidate(struct ata_device *dev, int post_reset) +int ata_dev_revalidate(struct ata_device *dev, unsigned int readid_flags) { unsigned int class = dev->class; u16 *id = (void *)dev->ap->sector_buf; @@ -2990,7 +3254,7 @@ int ata_dev_revalidate(struct ata_device *dev, int post_reset) } /* read ID data */ - rc = ata_dev_read_id(dev, &class, post_reset, id); + rc = ata_dev_read_id(dev, &class, readid_flags, id); if (rc) goto fail; @@ -3003,7 +3267,7 @@ int ata_dev_revalidate(struct ata_device *dev, int post_reset) memcpy(dev->id, id, sizeof(id[0]) * ATA_ID_WORDS); /* configure device according to the new ID */ - rc = ata_dev_configure(dev, 0); + rc = ata_dev_configure(dev); if (rc == 0) return 0; @@ -3012,37 +3276,55 @@ int ata_dev_revalidate(struct ata_device *dev, int post_reset) return rc; } -static const char * const ata_dma_blacklist [] = { - "WDC AC11000H", NULL, - "WDC AC22100H", NULL, - "WDC AC32500H", NULL, - "WDC AC33100H", NULL, - "WDC AC31600H", NULL, - "WDC AC32100H", "24.09P07", - "WDC AC23200L", "21.10N21", - "Compaq CRD-8241B", NULL, - "CRD-8400B", NULL, - "CRD-8480B", NULL, - "CRD-8482B", NULL, - "CRD-84", NULL, - "SanDisk SDP3B", NULL, - "SanDisk SDP3B-64", NULL, - "SANYO CD-ROM CRD", NULL, - "HITACHI CDR-8", NULL, - "HITACHI CDR-8335", NULL, - "HITACHI CDR-8435", NULL, - "Toshiba CD-ROM XM-6202B", NULL, - "TOSHIBA CD-ROM XM-1702BC", NULL, - "CD-532E-A", NULL, - "E-IDE CD-ROM CR-840", NULL, - "CD-ROM Drive/F5A", NULL, - "WPI CDD-820", NULL, - "SAMSUNG CD-ROM SC-148C", NULL, - "SAMSUNG CD-ROM SC", NULL, - "SanDisk SDP3B-64", NULL, - "ATAPI CD-ROM DRIVE 40X MAXIMUM",NULL, - "_NEC DV5800A", NULL, - "SAMSUNG CD-ROM SN-124", "N001" +struct ata_blacklist_entry { + const char *model_num; + const char *model_rev; + unsigned long horkage; +}; + +static const struct ata_blacklist_entry ata_device_blacklist [] = { + /* Devices with DMA related problems under Linux */ + { "WDC AC11000H", NULL, ATA_HORKAGE_NODMA }, + { "WDC AC22100H", NULL, ATA_HORKAGE_NODMA }, + { "WDC AC32500H", NULL, ATA_HORKAGE_NODMA }, + { "WDC AC33100H", NULL, ATA_HORKAGE_NODMA }, + { "WDC AC31600H", NULL, ATA_HORKAGE_NODMA }, + { "WDC AC32100H", "24.09P07", ATA_HORKAGE_NODMA }, + { "WDC AC23200L", "21.10N21", ATA_HORKAGE_NODMA }, + { "Compaq CRD-8241B", NULL, ATA_HORKAGE_NODMA }, + { "CRD-8400B", NULL, ATA_HORKAGE_NODMA }, + { "CRD-8480B", NULL, ATA_HORKAGE_NODMA }, + { "CRD-8482B", NULL, ATA_HORKAGE_NODMA }, + { "CRD-84", NULL, ATA_HORKAGE_NODMA }, + { "SanDisk SDP3B", NULL, ATA_HORKAGE_NODMA }, + { "SanDisk SDP3B-64", NULL, ATA_HORKAGE_NODMA }, + { "SANYO CD-ROM CRD", NULL, ATA_HORKAGE_NODMA }, + { "HITACHI CDR-8", NULL, ATA_HORKAGE_NODMA }, + { "HITACHI CDR-8335", NULL, ATA_HORKAGE_NODMA }, + { "HITACHI CDR-8435", NULL, ATA_HORKAGE_NODMA }, + { "Toshiba CD-ROM XM-6202B", NULL, ATA_HORKAGE_NODMA }, + { "TOSHIBA CD-ROM XM-1702BC", NULL, ATA_HORKAGE_NODMA }, + { "CD-532E-A", NULL, ATA_HORKAGE_NODMA }, + { "E-IDE CD-ROM CR-840",NULL, ATA_HORKAGE_NODMA }, + { "CD-ROM Drive/F5A", NULL, ATA_HORKAGE_NODMA }, + { "WPI CDD-820", NULL, ATA_HORKAGE_NODMA }, + { "SAMSUNG CD-ROM SC-148C", NULL, ATA_HORKAGE_NODMA }, + { "SAMSUNG CD-ROM SC", NULL, ATA_HORKAGE_NODMA }, + { "SanDisk SDP3B-64", NULL, ATA_HORKAGE_NODMA }, + { "ATAPI CD-ROM DRIVE 40X MAXIMUM",NULL,ATA_HORKAGE_NODMA }, + { "_NEC DV5800A", NULL, ATA_HORKAGE_NODMA }, + { "SAMSUNG CD-ROM SN-124","N001", ATA_HORKAGE_NODMA }, + + /* Devices we expect to fail diagnostics */ + + /* Devices where NCQ should be avoided */ + /* NCQ is slow */ + { "WDC WD740ADFD-00", NULL, ATA_HORKAGE_NONCQ }, + + /* Devices with NCQ limits */ + + /* End Marker */ + { } }; static int ata_strim(char *s, size_t len) @@ -3057,20 +3339,12 @@ static int ata_strim(char *s, size_t len) return len; } -static int ata_dma_blacklisted(const struct ata_device *dev) +unsigned long ata_device_blacklisted(const struct ata_device *dev) { unsigned char model_num[40]; unsigned char model_rev[16]; unsigned int nlen, rlen; - int i; - - /* We don't support polling DMA. - * DMA blacklist those ATAPI devices with CDB-intr (and use PIO) - * if the LLDD handles only interrupts in the HSM_ST_LAST state. - */ - if ((dev->ap->flags & ATA_FLAG_PIO_POLLING) && - (dev->flags & ATA_DFLAG_CDB_INTR)) - return 1; + const struct ata_blacklist_entry *ad = ata_device_blacklist; ata_id_string(dev->id, model_num, ATA_ID_PROD_OFS, sizeof(model_num)); @@ -3079,17 +3353,30 @@ static int ata_dma_blacklisted(const struct ata_device *dev) nlen = ata_strim(model_num, sizeof(model_num)); rlen = ata_strim(model_rev, sizeof(model_rev)); - for (i = 0; i < ARRAY_SIZE(ata_dma_blacklist); i += 2) { - if (!strncmp(ata_dma_blacklist[i], model_num, nlen)) { - if (ata_dma_blacklist[i+1] == NULL) - return 1; - if (!strncmp(ata_dma_blacklist[i], model_rev, rlen)) - return 1; + while (ad->model_num) { + if (!strncmp(ad->model_num, model_num, nlen)) { + if (ad->model_rev == NULL) + return ad->horkage; + if (!strncmp(ad->model_rev, model_rev, rlen)) + return ad->horkage; } + ad++; } return 0; } +static int ata_dma_blacklisted(const struct ata_device *dev) +{ + /* We don't support polling DMA. + * DMA blacklist those ATAPI devices with CDB-intr (and use PIO) + * if the LLDD handles only interrupts in the HSM_ST_LAST state. + */ + if ((dev->ap->flags & ATA_FLAG_PIO_POLLING) && + (dev->flags & ATA_DFLAG_CDB_INTR)) + return 1; + return (ata_device_blacklisted(dev) & ATA_HORKAGE_NODMA) ? 1 : 0; +} + /** * ata_dev_xfermask - Compute supported xfermask of the given device * @dev: Device to compute xfermask for @@ -3117,6 +3404,13 @@ static void ata_dev_xfermask(struct ata_device *dev) */ if (ap->cbl == ATA_CBL_PATA40) xfer_mask &= ~(0xF8 << ATA_SHIFT_UDMA); + /* Apply drive side cable rule. Unknown or 80 pin cables reported + * host side are checked drive side as well. Cases where we know a + * 40wire cable is used safely for 80 are not checked here. + */ + if (ata_drive_40wire(dev->id) && (ap->cbl == ATA_CBL_PATA_UNK || ap->cbl == ATA_CBL_PATA80)) + xfer_mask &= ~(0xF8 << ATA_SHIFT_UDMA); + xfer_mask &= ata_pack_xfermask(dev->pio_mask, dev->mwdma_mask, dev->udma_mask); @@ -3234,8 +3528,7 @@ static unsigned int ata_dev_init_params(struct ata_device *dev, * LOCKING: * spin_lock_irqsave(host lock) */ - -static void ata_sg_clean(struct ata_queued_cmd *qc) +void ata_sg_clean(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; struct scatterlist *sg = qc->__sg; @@ -3393,19 +3686,15 @@ void ata_noop_qc_prep(struct ata_queued_cmd *qc) { } void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf, unsigned int buflen) { - struct scatterlist *sg; - qc->flags |= ATA_QCFLAG_SINGLE; - memset(&qc->sgent, 0, sizeof(qc->sgent)); qc->__sg = &qc->sgent; qc->n_elem = 1; qc->orig_n_elem = 1; qc->buf_virt = buf; qc->nbytes = buflen; - sg = qc->__sg; - sg_init_one(sg, buf, buflen); + sg_init_one(&qc->sgent, buf, buflen); } /** @@ -4198,8 +4487,12 @@ fsm_start: /* device stops HSM for abort/error */ qc->err_mask |= AC_ERR_DEV; else - /* HSM violation. Let EH handle this */ - qc->err_mask |= AC_ERR_HSM; + /* HSM violation. Let EH handle this. + * Phantom devices also trigger this + * condition. Mark hint. + */ + qc->err_mask |= AC_ERR_HSM | + AC_ERR_NODEV_HINT; ap->hsm_task_state = HSM_ST_ERR; goto fsm_start; @@ -4439,6 +4732,14 @@ void __ata_qc_complete(struct ata_queued_cmd *qc) qc->complete_fn(qc); } +static void fill_result_tf(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + + ap->ops->tf_read(ap, &qc->result_tf); + qc->result_tf.flags = qc->tf.flags; +} + /** * ata_qc_complete - Complete an active ATA command * @qc: Command to complete @@ -4476,7 +4777,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc) if (unlikely(qc->flags & ATA_QCFLAG_FAILED)) { if (!ata_tag_internal(qc->tag)) { /* always fill result TF for failed qc */ - ap->ops->tf_read(ap, &qc->result_tf); + fill_result_tf(qc); ata_qc_schedule_eh(qc); return; } @@ -4484,7 +4785,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc) /* read result TF if requested */ if (qc->flags & ATA_QCFLAG_RESULT_TF) - ap->ops->tf_read(ap, &qc->result_tf); + fill_result_tf(qc); __ata_qc_complete(qc); } else { @@ -4493,7 +4794,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc) /* read result TF if failed or requested */ if (qc->err_mask || qc->flags & ATA_QCFLAG_RESULT_TF) - ap->ops->tf_read(ap, &qc->result_tf); + fill_result_tf(qc); __ata_qc_complete(qc); } @@ -4673,6 +4974,14 @@ unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc) } } + /* Some controllers show flaky interrupt behavior after + * setting xfer mode. Use polling instead. + */ + if (unlikely(qc->tf.command == ATA_CMD_SET_FEATURES && + qc->tf.feature == SETFEATURES_XFER) && + (ap->flags & ATA_FLAG_SETXFER_POLLING)) + qc->tf.flags |= ATA_TFLAG_POLLING; + /* select the device */ ata_dev_select(ap, qc->dev->devno, 1, 0); @@ -4781,6 +5090,7 @@ unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc) inline unsigned int ata_host_intr (struct ata_port *ap, struct ata_queued_cmd *qc) { + struct ata_eh_info *ehi = &ap->eh_info; u8 status, host_stat = 0; VPRINTK("ata%u: protocol %d task_state %d\n", @@ -4841,6 +5151,11 @@ inline unsigned int ata_host_intr (struct ata_port *ap, ap->ops->irq_clear(ap); ata_hsm_move(ap, qc, status, 0); + + if (unlikely(qc->err_mask) && (qc->tf.protocol == ATA_PROT_DMA || + qc->tf.protocol == ATA_PROT_ATAPI_DMA)) + ata_ehi_push_desc(ehi, "BMDMA stat 0x%x", host_stat); + return 1; /* irq handled */ idle_irq: @@ -5047,7 +5362,7 @@ int ata_flush_cache(struct ata_device *dev) if (!ata_try_flush_cache(dev)) return 0; - if (ata_id_has_flush_ext(dev->id)) + if (dev->flags & ATA_DFLAG_FLUSH_EXT) cmd = ATA_CMD_FLUSH_EXT; else cmd = ATA_CMD_FLUSH; @@ -5519,9 +5834,8 @@ int ata_device_add(const struct ata_probe_ent *ent) ap->ioaddr.bmdma_addr, irq_line); - ata_chk_status(ap); - host->ops->irq_clear(ap); - ata_eh_freeze_port(ap); /* freeze port before requesting IRQ */ + /* freeze port before requesting IRQ */ + ata_eh_freeze_port(ap); } /* obtain irq, that may be shared between channels */ @@ -6119,6 +6433,7 @@ EXPORT_SYMBOL_GPL(__sata_phy_reset); EXPORT_SYMBOL_GPL(ata_bus_reset); EXPORT_SYMBOL_GPL(ata_std_prereset); EXPORT_SYMBOL_GPL(ata_std_softreset); +EXPORT_SYMBOL_GPL(sata_port_hardreset); EXPORT_SYMBOL_GPL(sata_std_hardreset); EXPORT_SYMBOL_GPL(ata_std_postreset); EXPORT_SYMBOL_GPL(ata_dev_classify); @@ -6145,6 +6460,7 @@ EXPORT_SYMBOL_GPL(ata_host_suspend); EXPORT_SYMBOL_GPL(ata_host_resume); EXPORT_SYMBOL_GPL(ata_id_string); EXPORT_SYMBOL_GPL(ata_id_c_string); +EXPORT_SYMBOL_GPL(ata_device_blacklisted); EXPORT_SYMBOL_GPL(ata_scsi_simulate); EXPORT_SYMBOL_GPL(ata_pio_need_iordy); diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 9f6b7cc..08ad44b 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -1136,19 +1136,21 @@ static unsigned int ata_eh_analyze_tf(struct ata_queued_cmd *qc, break; case ATA_DEV_ATAPI: - tmp = atapi_eh_request_sense(qc->dev, - qc->scsicmd->sense_buffer); - if (!tmp) { - /* ATA_QCFLAG_SENSE_VALID is used to tell - * atapi_qc_complete() that sense data is - * already valid. - * - * TODO: interpret sense data and set - * appropriate err_mask. - */ - qc->flags |= ATA_QCFLAG_SENSE_VALID; - } else - qc->err_mask |= tmp; + if (!(qc->ap->pflags & ATA_PFLAG_FROZEN)) { + tmp = atapi_eh_request_sense(qc->dev, + qc->scsicmd->sense_buffer); + if (!tmp) { + /* ATA_QCFLAG_SENSE_VALID is used to + * tell atapi_qc_complete() that sense + * data is already valid. + * + * TODO: interpret sense data and set + * appropriate err_mask. + */ + qc->flags |= ATA_QCFLAG_SENSE_VALID; + } else + qc->err_mask |= tmp; + } } if (qc->err_mask & (AC_ERR_HSM | AC_ERR_TIMEOUT | AC_ERR_ATA_BUS)) @@ -1433,16 +1435,39 @@ static void ata_eh_report(struct ata_port *ap) } for (tag = 0; tag < ATA_MAX_QUEUE; tag++) { + static const char *dma_str[] = { + [DMA_BIDIRECTIONAL] = "bidi", + [DMA_TO_DEVICE] = "out", + [DMA_FROM_DEVICE] = "in", + [DMA_NONE] = "", + }; struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag); + struct ata_taskfile *cmd = &qc->tf, *res = &qc->result_tf; + unsigned int nbytes; if (!(qc->flags & ATA_QCFLAG_FAILED) || !qc->err_mask) continue; - ata_dev_printk(qc->dev, KERN_ERR, "tag %d cmd 0x%x " - "Emask 0x%x stat 0x%x err 0x%x (%s)\n", - qc->tag, qc->tf.command, qc->err_mask, - qc->result_tf.command, qc->result_tf.feature, - ata_err_string(qc->err_mask)); + nbytes = qc->nbytes; + if (!nbytes) + nbytes = qc->nsect << 9; + + ata_dev_printk(qc->dev, KERN_ERR, + "cmd %02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x " + "tag %d cdb 0x%x data %u %s\n " + "res %02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x " + "Emask 0x%x (%s)\n", + cmd->command, cmd->feature, cmd->nsect, + cmd->lbal, cmd->lbam, cmd->lbah, + cmd->hob_feature, cmd->hob_nsect, + cmd->hob_lbal, cmd->hob_lbam, cmd->hob_lbah, + cmd->device, qc->tag, qc->cdb[0], nbytes, + dma_str[qc->dma_dir], + res->command, res->feature, res->nsect, + res->lbal, res->lbam, res->lbah, + res->hob_feature, res->hob_nsect, + res->hob_lbal, res->hob_lbam, res->hob_lbah, + res->device, qc->err_mask, ata_err_string(qc->err_mask)); } } @@ -1634,11 +1659,14 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap, DPRINTK("ENTER\n"); for (i = 0; i < ATA_MAX_DEVICES; i++) { - unsigned int action; + unsigned int action, readid_flags = 0; dev = &ap->device[i]; action = ata_eh_dev_action(dev); + if (ehc->i.flags & ATA_EHI_DID_RESET) + readid_flags |= ATA_READID_POSTRESET; + if (action & ATA_EH_REVALIDATE && ata_dev_ready(dev)) { if (ata_port_offline(ap)) { rc = -EIO; @@ -1646,13 +1674,17 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap, } ata_eh_about_to_do(ap, dev, ATA_EH_REVALIDATE); - rc = ata_dev_revalidate(dev, - ehc->i.flags & ATA_EHI_DID_RESET); + rc = ata_dev_revalidate(dev, readid_flags); if (rc) break; ata_eh_done(ap, dev, ATA_EH_REVALIDATE); + /* Configuration may have changed, reconfigure + * transfer mode. + */ + ehc->i.flags |= ATA_EHI_SETMODE; + /* schedule the scsi_rescan_device() here */ queue_work(ata_aux_wq, &(ap->scsi_rescan_task)); } else if (dev->class == ATA_DEV_UNKNOWN && @@ -1660,18 +1692,35 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap, ata_class_enabled(ehc->classes[dev->devno])) { dev->class = ehc->classes[dev->devno]; - rc = ata_dev_read_id(dev, &dev->class, 1, dev->id); - if (rc == 0) - rc = ata_dev_configure(dev, 1); + rc = ata_dev_read_id(dev, &dev->class, readid_flags, + dev->id); + if (rc == 0) { + ehc->i.flags |= ATA_EHI_PRINTINFO; + rc = ata_dev_configure(dev); + ehc->i.flags &= ~ATA_EHI_PRINTINFO; + } else if (rc == -ENOENT) { + /* IDENTIFY was issued to non-existent + * device. No need to reset. Just + * thaw and kill the device. + */ + ata_eh_thaw_port(ap); + dev->class = ATA_DEV_UNKNOWN; + rc = 0; + } if (rc) { dev->class = ATA_DEV_UNKNOWN; break; } - spin_lock_irqsave(ap->lock, flags); - ap->pflags |= ATA_PFLAG_SCSI_HOTPLUG; - spin_unlock_irqrestore(ap->lock, flags); + if (ata_dev_enabled(dev)) { + spin_lock_irqsave(ap->lock, flags); + ap->pflags |= ATA_PFLAG_SCSI_HOTPLUG; + spin_unlock_irqrestore(ap->lock, flags); + + /* new device discovered, configure xfermode */ + ehc->i.flags |= ATA_EHI_SETMODE; + } } } @@ -1987,13 +2036,14 @@ static int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, if (rc) goto dev_fail; - /* configure transfer mode if the port has been reset */ - if (ehc->i.flags & ATA_EHI_DID_RESET) { + /* configure transfer mode if necessary */ + if (ehc->i.flags & ATA_EHI_SETMODE) { rc = ata_set_mode(ap, &dev); if (rc) { down_xfermask = 1; goto dev_fail; } + ehc->i.flags &= ~ATA_EHI_SETMODE; } /* suspend devices */ diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 4c32d93..664e137 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -671,7 +671,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc, } /* - * ata_gen_ata_desc_sense - Generate check condition sense block. + * ata_gen_passthru_sense - Generate check condition sense block. * @qc: Command that completed. * * This function is specific to the ATA descriptor format sense @@ -681,9 +681,9 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc, * block. Clear sense key, ASC & ASCQ if there is no error. * * LOCKING: - * spin_lock_irqsave(host lock) + * None. */ -void ata_gen_ata_desc_sense(struct ata_queued_cmd *qc) +static void ata_gen_passthru_sense(struct ata_queued_cmd *qc) { struct scsi_cmnd *cmd = qc->scsicmd; struct ata_taskfile *tf = &qc->result_tf; @@ -713,12 +713,9 @@ void ata_gen_ata_desc_sense(struct ata_queued_cmd *qc) desc[0] = 0x09; - /* - * Set length of additional sense data. - * Since we only populate descriptor 0, the total - * length is the same (fixed) length as descriptor 0. - */ - desc[1] = sb[7] = 14; + /* set length of additional sense data */ + sb[7] = 14; + desc[1] = 12; /* * Copy registers into sense buffer. @@ -746,56 +743,56 @@ void ata_gen_ata_desc_sense(struct ata_queued_cmd *qc) } /** - * ata_gen_fixed_sense - generate a SCSI fixed sense block + * ata_gen_ata_sense - generate a SCSI fixed sense block * @qc: Command that we are erroring out * - * Leverage ata_to_sense_error() to give us the codes. Fit our - * LBA in here if there's room. + * Generate sense block for a failed ATA command @qc. Descriptor + * format is used to accomodate LBA48 block address. * * LOCKING: - * inherited from caller + * None. */ -void ata_gen_fixed_sense(struct ata_queued_cmd *qc) +static void ata_gen_ata_sense(struct ata_queued_cmd *qc) { + struct ata_device *dev = qc->dev; struct scsi_cmnd *cmd = qc->scsicmd; struct ata_taskfile *tf = &qc->result_tf; unsigned char *sb = cmd->sense_buffer; + unsigned char *desc = sb + 8; int verbose = qc->ap->ops->error_handler == NULL; + u64 block; memset(sb, 0, SCSI_SENSE_BUFFERSIZE); cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION; - /* - * Use ata_to_sense_error() to map status register bits + /* sense data is current and format is descriptor */ + sb[0] = 0x72; + + /* Use ata_to_sense_error() to map status register bits * onto sense key, asc & ascq. */ if (qc->err_mask || tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) { ata_to_sense_error(qc->ap->id, tf->command, tf->feature, - &sb[2], &sb[12], &sb[13], verbose); - sb[2] &= 0x0f; + &sb[1], &sb[2], &sb[3], verbose); + sb[1] &= 0x0f; } - sb[0] = 0x70; - sb[7] = 0x0a; - - if (tf->flags & ATA_TFLAG_LBA48) { - /* TODO: find solution for LBA48 descriptors */ - } + block = ata_tf_read_block(&qc->result_tf, dev); - else if (tf->flags & ATA_TFLAG_LBA) { - /* A small (28b) LBA will fit in the 32b info field */ - sb[0] |= 0x80; /* set valid bit */ - sb[3] = tf->device & 0x0f; - sb[4] = tf->lbah; - sb[5] = tf->lbam; - sb[6] = tf->lbal; - } + /* information sense data descriptor */ + sb[7] = 12; + desc[0] = 0x00; + desc[1] = 10; - else { - /* TODO: C/H/S */ - } + desc[2] |= 0x80; /* valid */ + desc[6] = block >> 40; + desc[7] = block >> 32; + desc[8] = block >> 24; + desc[9] = block >> 16; + desc[10] = block >> 8; + desc[11] = block; } static void ata_scsi_sdev_config(struct scsi_device *sdev) @@ -807,23 +804,10 @@ static void ata_scsi_sdev_config(struct scsi_device *sdev) static void ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev) { - unsigned int max_sectors; - - /* TODO: 2048 is an arbitrary number, not the - * hardware maximum. This should be increased to - * 65534 when Jens Axboe's patch for dynamically - * determining max_sectors is merged. - */ - max_sectors = ATA_MAX_SECTORS; - if (dev->flags & ATA_DFLAG_LBA48) - max_sectors = ATA_MAX_SECTORS_LBA48; - if (dev->max_sectors) - max_sectors = dev->max_sectors; + /* configure max sectors */ + blk_queue_max_sectors(sdev->request_queue, dev->max_sectors); - blk_queue_max_sectors(sdev->request_queue, max_sectors); - - /* - * SATA DMA transfers must be multiples of 4 byte, so + /* SATA DMA transfers must be multiples of 4 byte, so * we need to pad ATAPI transfers using an extra sg. * Decrement max hw segments accordingly. */ @@ -1040,8 +1024,7 @@ static unsigned int ata_scsi_flush_xlat(struct ata_queued_cmd *qc, const u8 *scs tf->flags |= ATA_TFLAG_DEVICE; tf->protocol = ATA_PROT_NODATA; - if ((qc->dev->flags & ATA_DFLAG_LBA48) && - (ata_id_has_flush_ext(qc->dev->id))) + if (qc->dev->flags & ATA_DFLAG_FLUSH_EXT) tf->command = ATA_CMD_FLUSH_EXT; else tf->command = ATA_CMD_FLUSH; @@ -1282,17 +1265,14 @@ nothing_to_do: static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicmd) { - struct ata_taskfile *tf = &qc->tf; - struct ata_device *dev = qc->dev; + unsigned int tf_flags = 0; u64 block; u32 n_block; - - qc->flags |= ATA_QCFLAG_IO; - tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; + int rc; if (scsicmd[0] == WRITE_10 || scsicmd[0] == WRITE_6 || scsicmd[0] == WRITE_16) - tf->flags |= ATA_TFLAG_WRITE; + tf_flags |= ATA_TFLAG_WRITE; /* Calculate the SCSI LBA, transfer length and FUA. */ switch (scsicmd[0]) { @@ -1300,7 +1280,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm case WRITE_10: scsi_10_lba_len(scsicmd, &block, &n_block); if (unlikely(scsicmd[1] & (1 << 3))) - tf->flags |= ATA_TFLAG_FUA; + tf_flags |= ATA_TFLAG_FUA; break; case READ_6: case WRITE_6: @@ -1316,7 +1296,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm case WRITE_16: scsi_16_lba_len(scsicmd, &block, &n_block); if (unlikely(scsicmd[1] & (1 << 3))) - tf->flags |= ATA_TFLAG_FUA; + tf_flags |= ATA_TFLAG_FUA; break; default: DPRINTK("no-byte command\n"); @@ -1334,106 +1314,17 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm */ goto nothing_to_do; - if ((dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF | - ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ) { - /* yay, NCQ */ - if (!lba_48_ok(block, n_block)) - goto out_of_range; - - tf->protocol = ATA_PROT_NCQ; - tf->flags |= ATA_TFLAG_LBA | ATA_TFLAG_LBA48; - - if (tf->flags & ATA_TFLAG_WRITE) - tf->command = ATA_CMD_FPDMA_WRITE; - else - tf->command = ATA_CMD_FPDMA_READ; - - qc->nsect = n_block; - - tf->nsect = qc->tag << 3; - tf->hob_feature = (n_block >> 8) & 0xff; - tf->feature = n_block & 0xff; - - tf->hob_lbah = (block >> 40) & 0xff; - tf->hob_lbam = (block >> 32) & 0xff; - tf->hob_lbal = (block >> 24) & 0xff; - tf->lbah = (block >> 16) & 0xff; - tf->lbam = (block >> 8) & 0xff; - tf->lbal = block & 0xff; - - tf->device = 1 << 6; - if (tf->flags & ATA_TFLAG_FUA) - tf->device |= 1 << 7; - } else if (dev->flags & ATA_DFLAG_LBA) { - tf->flags |= ATA_TFLAG_LBA; - - if (lba_28_ok(block, n_block)) { - /* use LBA28 */ - tf->device |= (block >> 24) & 0xf; - } else if (lba_48_ok(block, n_block)) { - if (!(dev->flags & ATA_DFLAG_LBA48)) - goto out_of_range; - - /* use LBA48 */ - tf->flags |= ATA_TFLAG_LBA48; - - tf->hob_nsect = (n_block >> 8) & 0xff; - - tf->hob_lbah = (block >> 40) & 0xff; - tf->hob_lbam = (block >> 32) & 0xff; - tf->hob_lbal = (block >> 24) & 0xff; - } else - /* request too large even for LBA48 */ - goto out_of_range; - - if (unlikely(ata_rwcmd_protocol(qc) < 0)) - goto invalid_fld; - - qc->nsect = n_block; - tf->nsect = n_block & 0xff; - - tf->lbah = (block >> 16) & 0xff; - tf->lbam = (block >> 8) & 0xff; - tf->lbal = block & 0xff; - - tf->device |= ATA_LBA; - } else { - /* CHS */ - u32 sect, head, cyl, track; - - /* The request -may- be too large for CHS addressing. */ - if (!lba_28_ok(block, n_block)) - goto out_of_range; - - if (unlikely(ata_rwcmd_protocol(qc) < 0)) - goto invalid_fld; - - /* Convert LBA to CHS */ - track = (u32)block / dev->sectors; - cyl = track / dev->heads; - head = track % dev->heads; - sect = (u32)block % dev->sectors + 1; - - DPRINTK("block %u track %u cyl %u head %u sect %u\n", - (u32)block, track, cyl, head, sect); - - /* Check whether the converted CHS can fit. - Cylinder: 0-65535 - Head: 0-15 - Sector: 1-255*/ - if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect)) - goto out_of_range; - - qc->nsect = n_block; - tf->nsect = n_block & 0xff; /* Sector count 0 means 256 sectors */ - tf->lbal = sect; - tf->lbam = cyl; - tf->lbah = cyl >> 8; - tf->device |= head; - } + qc->flags |= ATA_QCFLAG_IO; + qc->nsect = n_block; - return 0; + rc = ata_build_rw_tf(&qc->tf, qc->dev, block, n_block, tf_flags, + qc->tag); + if (likely(rc == 0)) + return 0; + if (rc == -ERANGE) + goto out_of_range; + /* treat all other errors as -EINVAL, fall through */ invalid_fld: ata_scsi_set_sense(qc->scsicmd, ILLEGAL_REQUEST, 0x24, 0x0); /* "Invalid field in cbd" */ @@ -1477,7 +1368,7 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc) */ if (((cdb[0] == ATA_16) || (cdb[0] == ATA_12)) && ((cdb[2] & 0x20) || need_sense)) { - ata_gen_ata_desc_sense(qc); + ata_gen_passthru_sense(qc); } else { if (!need_sense) { cmd->result = SAM_STAT_GOOD; @@ -1488,7 +1379,7 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc) * good for smaller LBA (and maybe CHS?) * devices. */ - ata_gen_fixed_sense(qc); + ata_gen_ata_sense(qc); } } @@ -1715,6 +1606,22 @@ void ata_scsi_rbuf_fill(struct ata_scsi_args *args, } /** + * ATA_SCSI_RBUF_SET - helper to set values in SCSI response buffer + * @idx: byte index into SCSI response buffer + * @val: value to set + * + * To be used by SCSI command simulator functions. This macros + * expects two local variables, u8 *rbuf and unsigned int buflen, + * are in scope. + * + * LOCKING: + * None. + */ +#define ATA_SCSI_RBUF_SET(idx, val) do { \ + if ((idx) < buflen) rbuf[(idx)] = (u8)(val); \ + } while (0) + +/** * ata_scsiop_inq_std - Simulate INQUIRY command * @args: device IDENTIFY data / SCSI command of interest. * @rbuf: Response buffer, to which simulated SCSI cmd output is sent. @@ -2173,67 +2080,42 @@ saving_not_supp: * Simulate READ CAPACITY commands. * * LOCKING: - * spin_lock_irqsave(host lock) + * None. */ - unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf, unsigned int buflen) { - u64 n_sectors; - u32 tmp; + u64 last_lba = args->dev->n_sectors - 1; /* LBA of the last block */ VPRINTK("ENTER\n"); - if (ata_id_has_lba(args->id)) { - if (ata_id_has_lba48(args->id)) - n_sectors = ata_id_u64(args->id, 100); - else - n_sectors = ata_id_u32(args->id, 60); - } else { - /* CHS default translation */ - n_sectors = args->id[1] * args->id[3] * args->id[6]; - - if (ata_id_current_chs_valid(args->id)) - /* CHS current translation */ - n_sectors = ata_id_u32(args->id, 57); - } - - n_sectors--; /* ATA TotalUserSectors - 1 */ - if (args->cmd->cmnd[0] == READ_CAPACITY) { - if( n_sectors >= 0xffffffffULL ) - tmp = 0xffffffff ; /* Return max count on overflow */ - else - tmp = n_sectors ; + if (last_lba >= 0xffffffffULL) + last_lba = 0xffffffff; /* sector count, 32-bit */ - rbuf[0] = tmp >> (8 * 3); - rbuf[1] = tmp >> (8 * 2); - rbuf[2] = tmp >> (8 * 1); - rbuf[3] = tmp; + ATA_SCSI_RBUF_SET(0, last_lba >> (8 * 3)); + ATA_SCSI_RBUF_SET(1, last_lba >> (8 * 2)); + ATA_SCSI_RBUF_SET(2, last_lba >> (8 * 1)); + ATA_SCSI_RBUF_SET(3, last_lba); /* sector size */ - tmp = ATA_SECT_SIZE; - rbuf[6] = tmp >> 8; - rbuf[7] = tmp; - + ATA_SCSI_RBUF_SET(6, ATA_SECT_SIZE >> 8); + ATA_SCSI_RBUF_SET(7, ATA_SECT_SIZE); } else { /* sector count, 64-bit */ - tmp = n_sectors >> (8 * 4); - rbuf[2] = tmp >> (8 * 3); - rbuf[3] = tmp >> (8 * 2); - rbuf[4] = tmp >> (8 * 1); - rbuf[5] = tmp; - tmp = n_sectors; - rbuf[6] = tmp >> (8 * 3); - rbuf[7] = tmp >> (8 * 2); - rbuf[8] = tmp >> (8 * 1); - rbuf[9] = tmp; + ATA_SCSI_RBUF_SET(0, last_lba >> (8 * 7)); + ATA_SCSI_RBUF_SET(1, last_lba >> (8 * 6)); + ATA_SCSI_RBUF_SET(2, last_lba >> (8 * 5)); + ATA_SCSI_RBUF_SET(3, last_lba >> (8 * 4)); + ATA_SCSI_RBUF_SET(4, last_lba >> (8 * 3)); + ATA_SCSI_RBUF_SET(5, last_lba >> (8 * 2)); + ATA_SCSI_RBUF_SET(6, last_lba >> (8 * 1)); + ATA_SCSI_RBUF_SET(7, last_lba); /* sector size */ - tmp = ATA_SECT_SIZE; - rbuf[12] = tmp >> 8; - rbuf[13] = tmp; + ATA_SCSI_RBUF_SET(10, ATA_SECT_SIZE >> 8); + ATA_SCSI_RBUF_SET(11, ATA_SECT_SIZE); } return 0; @@ -2319,7 +2201,7 @@ static void atapi_sense_complete(struct ata_queued_cmd *qc) * a sense descriptors, since that's only * correct for ATA, not ATAPI */ - ata_gen_ata_desc_sense(qc); + ata_gen_passthru_sense(qc); } qc->scsidone(qc->scsicmd); @@ -2394,7 +2276,7 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc) * sense descriptors, since that's only * correct for ATA, not ATAPI */ - ata_gen_ata_desc_sense(qc); + ata_gen_passthru_sense(qc); } /* SCSI EH automatically locks door if sdev->locked is @@ -2427,7 +2309,7 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc) * a sense descriptors, since that's only * correct for ATA, not ATAPI */ - ata_gen_ata_desc_sense(qc); + ata_gen_passthru_sense(qc); } else { u8 *scsicmd = cmd->cmnd; @@ -3183,10 +3065,12 @@ static int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel, rc = -EINVAL; } - if (rc == 0) + if (rc == 0) { ata_port_schedule_eh(ap); - - spin_unlock_irqrestore(ap->lock, flags); + spin_unlock_irqrestore(ap->lock, flags); + ata_port_wait_eh(ap); + } else + spin_unlock_irqrestore(ap->lock, flags); return rc; } @@ -3207,15 +3091,27 @@ void ata_scsi_dev_rescan(struct work_struct *work) { struct ata_port *ap = container_of(work, struct ata_port, scsi_rescan_task); - struct ata_device *dev; + unsigned long flags; unsigned int i; + spin_lock_irqsave(ap->lock, flags); + for (i = 0; i < ATA_MAX_DEVICES; i++) { - dev = &ap->device[i]; + struct ata_device *dev = &ap->device[i]; + struct scsi_device *sdev = dev->sdev; - if (ata_dev_enabled(dev) && dev->sdev) - scsi_rescan_device(&(dev->sdev->sdev_gendev)); + if (!ata_dev_enabled(dev) || !sdev) + continue; + if (scsi_device_get(sdev)) + continue; + + spin_unlock_irqrestore(ap->lock, flags); + scsi_rescan_device(&(sdev->sdev_gendev)); + scsi_device_put(sdev); + spin_lock_irqsave(ap->lock, flags); } + + spin_unlock_irqrestore(ap->lock, flags); } /** diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 7645f2b..10ee22a 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -39,6 +39,35 @@ #include "libata.h" /** + * ata_irq_on - Enable interrupts on a port. + * @ap: Port on which interrupts are enabled. + * + * Enable interrupts on a legacy IDE device using MMIO or PIO, + * wait for idle, clear any pending interrupts. + * + * LOCKING: + * Inherited from caller. + */ +u8 ata_irq_on(struct ata_port *ap) +{ + struct ata_ioports *ioaddr = &ap->ioaddr; + u8 tmp; + + ap->ctl &= ~ATA_NIEN; + ap->last_ctl = ap->ctl; + + if (ap->flags & ATA_FLAG_MMIO) + writeb(ap->ctl, (void __iomem *) ioaddr->ctl_addr); + else + outb(ap->ctl, ioaddr->ctl_addr); + tmp = ata_wait_idle(ap); + + ap->ops->irq_clear(ap); + + return tmp; +} + +/** * ata_tf_load_pio - send taskfile registers to host controller * @ap: Port to which output is sent * @tf: ATA taskfile register set @@ -671,6 +700,14 @@ void ata_bmdma_freeze(struct ata_port *ap) writeb(ap->ctl, (void __iomem *)ioaddr->ctl_addr); else outb(ap->ctl, ioaddr->ctl_addr); + + /* Under certain circumstances, some controllers raise IRQ on + * ATA_NIEN manipulation. Also, many controllers fail to mask + * previously pending IRQ on ATA_NIEN assertion. Clear it. + */ + ata_chk_status(ap); + + ap->ops->irq_clear(ap); } /** @@ -714,7 +751,6 @@ void ata_bmdma_drive_eh(struct ata_port *ap, ata_prereset_fn_t prereset, ata_reset_fn_t softreset, ata_reset_fn_t hardreset, ata_postreset_fn_t postreset) { - struct ata_eh_context *ehc = &ap->eh_context; struct ata_queued_cmd *qc; unsigned long flags; int thaw = 0; @@ -732,9 +768,7 @@ void ata_bmdma_drive_eh(struct ata_port *ap, ata_prereset_fn_t prereset, qc->tf.protocol == ATA_PROT_ATAPI_DMA)) { u8 host_stat; - host_stat = ata_bmdma_status(ap); - - ata_ehi_push_desc(&ehc->i, "BMDMA stat 0x%x", host_stat); + host_stat = ap->ops->bmdma_status(ap); /* BMDMA controllers indicate host bus error by * setting DMA_ERR bit and timing out. As it wasn't @@ -877,6 +911,7 @@ static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev, return NULL; probe_ent->n_ports = 2; + probe_ent->irq_flags = IRQF_SHARED; if (port_mask & ATA_PORT_PRIMARY) { probe_ent->irq = ATA_PRIMARY_IRQ; diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 7e0f3af..81ae41d 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -39,26 +39,39 @@ struct ata_scsi_args { }; /* libata-core.c */ +enum { + /* flags for ata_dev_read_id() */ + ATA_READID_POSTRESET = (1 << 0), /* reading ID after reset */ +}; + extern struct workqueue_struct *ata_aux_wq; extern int atapi_enabled; extern int atapi_dmadir; extern int libata_fua; extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev); -extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc); +extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, + u64 block, u32 n_block, unsigned int tf_flags, + unsigned int tag); +extern u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev); extern void ata_dev_disable(struct ata_device *dev); extern void ata_port_flush_task(struct ata_port *ap); extern unsigned ata_exec_internal(struct ata_device *dev, struct ata_taskfile *tf, const u8 *cdb, int dma_dir, void *buf, unsigned int buflen); +extern unsigned ata_exec_internal_sg(struct ata_device *dev, + struct ata_taskfile *tf, const u8 *cdb, + int dma_dir, struct scatterlist *sg, + unsigned int n_elem); extern unsigned int ata_do_simple_cmd(struct ata_device *dev, u8 cmd); extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, - int post_reset, u16 *id); -extern int ata_dev_revalidate(struct ata_device *dev, int post_reset); -extern int ata_dev_configure(struct ata_device *dev, int print_info); + unsigned int flags, u16 *id); +extern int ata_dev_revalidate(struct ata_device *dev, unsigned int flags); +extern int ata_dev_configure(struct ata_device *dev); extern int sata_down_spd_limit(struct ata_port *ap); extern int sata_set_spd_needed(struct ata_port *ap); extern int ata_down_xfermask_limit(struct ata_device *dev, int force_pio0); extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev); +extern void ata_sg_clean(struct ata_queued_cmd *qc); extern void ata_qc_free(struct ata_queued_cmd *qc); extern void ata_qc_issue(struct ata_queued_cmd *qc); extern void __ata_qc_complete(struct ata_queued_cmd *qc); @@ -120,4 +133,7 @@ extern void ata_scsi_error(struct Scsi_Host *host); extern void ata_port_wait_eh(struct ata_port *ap); extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc); +/* libata-sff.c */ +extern u8 ata_irq_on(struct ata_port *ap); + #endif /* __LIBATA_H__ */ diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c index 64eed99..c5d61d1 100644 --- a/drivers/ata/pata_ali.c +++ b/drivers/ata/pata_ali.c @@ -34,7 +34,7 @@ #include <linux/dmi.h> #define DRV_NAME "pata_ali" -#define DRV_VERSION "0.6.6" +#define DRV_VERSION "0.7.2" /* * Cable special cases @@ -78,7 +78,7 @@ static int ali_c2_cable_detect(struct ata_port *ap) implement the detect logic */ if (ali_cable_override(pdev)) - return ATA_CBL_PATA80; + return ATA_CBL_PATA40_SHORT; /* Host view cable detect 0x4A bit 0 primary bit 1 secondary Bit set for 40 pin */ @@ -337,9 +337,6 @@ static struct scsi_host_template ali_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - /* Keep LBA28 counts so large I/O's don't turn LBA48 and PIO - with older controllers. Not locked so will grow on C5 or later */ - .max_sectors = 255, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -348,6 +345,8 @@ static struct scsi_host_template ali_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; /* @@ -497,6 +496,69 @@ static struct ata_port_operations ali_c5_port_ops = { .host_stop = ata_host_stop }; + +/** + * ali_init_chipset - chip setup function + * @pdev: PCI device of ATA controller + * + * Perform the setup on the device that must be done both at boot + * and at resume time. + */ + +static void ali_init_chipset(struct pci_dev *pdev) +{ + u8 rev, tmp; + struct pci_dev *north, *isa_bridge; + + pci_read_config_byte(pdev, PCI_REVISION_ID, &rev); + + /* + * The chipset revision selects the driver operations and + * mode data. + */ + + if (rev >= 0x20 && rev < 0xC2) { + /* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */ + pci_read_config_byte(pdev, 0x4B, &tmp); + /* Clear CD-ROM DMA write bit */ + tmp &= 0x7F; + pci_write_config_byte(pdev, 0x4B, tmp); + } else if (rev >= 0xC2) { + /* Enable cable detection logic */ + pci_read_config_byte(pdev, 0x4B, &tmp); + pci_write_config_byte(pdev, 0x4B, tmp | 0x08); + } + north = pci_get_bus_and_slot(0, PCI_DEVFN(0,0)); + isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); + + if (north && north->vendor == PCI_VENDOR_ID_AL && isa_bridge) { + /* Configure the ALi bridge logic. For non ALi rely on BIOS. + Set the south bridge enable bit */ + pci_read_config_byte(isa_bridge, 0x79, &tmp); + if (rev == 0xC2) + pci_write_config_byte(isa_bridge, 0x79, tmp | 0x04); + else if (rev > 0xC2 && rev < 0xC5) + pci_write_config_byte(isa_bridge, 0x79, tmp | 0x02); + } + if (rev >= 0x20) { + /* + * CD_ROM DMA on (0x53 bit 0). Enable this even if we want + * to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control + * via 0x54/55. + */ + pci_read_config_byte(pdev, 0x53, &tmp); + if (rev <= 0x20) + tmp &= ~0x02; + if (rev >= 0xc7) + tmp |= 0x03; + else + tmp |= 0x01; /* CD_ROM enable for DMA */ + pci_write_config_byte(pdev, 0x53, tmp); + } + pci_dev_put(isa_bridge); + pci_dev_put(north); + ata_pci_clear_simplex(pdev); +} /** * ali_init_one - discovery callback * @pdev: PCI device ID @@ -570,7 +632,7 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) static struct ata_port_info *port_info[2]; u8 rev, tmp; - struct pci_dev *north, *isa_bridge; + struct pci_dev *isa_bridge; pci_read_config_byte(pdev, PCI_REVISION_ID, &rev); @@ -582,11 +644,6 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) if (rev < 0x20) { port_info[0] = port_info[1] = &info_early; } else if (rev < 0xC2) { - /* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */ - pci_read_config_byte(pdev, 0x4B, &tmp); - /* Clear CD-ROM DMA write bit */ - tmp &= 0x7F; - pci_write_config_byte(pdev, 0x4B, tmp); port_info[0] = port_info[1] = &info_20; } else if (rev == 0xC2) { port_info[0] = port_info[1] = &info_c2; @@ -597,54 +654,25 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) } else port_info[0] = port_info[1] = &info_c5; - if (rev >= 0xC2) { - /* Enable cable detection logic */ - pci_read_config_byte(pdev, 0x4B, &tmp); - pci_write_config_byte(pdev, 0x4B, tmp | 0x08); - } - - north = pci_get_slot(pdev->bus, PCI_DEVFN(0,0)); + ali_init_chipset(pdev); + isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); - - if (north && north->vendor == PCI_VENDOR_ID_AL) { - /* Configure the ALi bridge logic. For non ALi rely on BIOS. - Set the south bridge enable bit */ - pci_read_config_byte(isa_bridge, 0x79, &tmp); - if (rev == 0xC2) - pci_write_config_byte(isa_bridge, 0x79, tmp | 0x04); - else if (rev > 0xC2) - pci_write_config_byte(isa_bridge, 0x79, tmp | 0x02); - } - - if (rev >= 0x20) { - if (rev < 0xC2) { - /* Are we paired with a UDMA capable chip */ - pci_read_config_byte(isa_bridge, 0x5E, &tmp); - if ((tmp & 0x1E) == 0x12) - port_info[0] = port_info[1] = &info_20_udma; - } - /* - * CD_ROM DMA on (0x53 bit 0). Enable this even if we want - * to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control - * via 0x54/55. - */ - pci_read_config_byte(pdev, 0x53, &tmp); - if (rev <= 0x20) - tmp &= ~0x02; - if (rev >= 0xc7) - tmp |= 0x03; - else - tmp |= 0x01; /* CD_ROM enable for DMA */ - pci_write_config_byte(pdev, 0x53, tmp); + if (isa_bridge && rev >= 0x20 && rev < 0xC2) { + /* Are we paired with a UDMA capable chip */ + pci_read_config_byte(isa_bridge, 0x5E, &tmp); + if ((tmp & 0x1E) == 0x12) + port_info[0] = port_info[1] = &info_20_udma; + pci_dev_put(isa_bridge); } - - pci_dev_put(isa_bridge); - pci_dev_put(north); - - ata_pci_clear_simplex(pdev); return ata_pci_init_one(pdev, port_info, 2); } +static int ali_reinit_one(struct pci_dev *pdev) +{ + ali_init_chipset(pdev); + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id ali[] = { { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5228), }, { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5229), }, @@ -656,7 +684,9 @@ static struct pci_driver ali_pci_driver = { .name = DRV_NAME, .id_table = ali, .probe = ali_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ali_reinit_one, }; static int __init ali_init(void) diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c index 8be46a6..a6b33008 100644 --- a/drivers/ata/pata_amd.c +++ b/drivers/ata/pata_amd.c @@ -25,7 +25,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_amd" -#define DRV_VERSION "0.2.4" +#define DRV_VERSION "0.2.7" /** * timing_setup - shared timing computation and load @@ -326,7 +326,6 @@ static struct scsi_host_template amd_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -335,6 +334,8 @@ static struct scsi_host_template amd_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations amd33_port_ops = { @@ -662,6 +663,23 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id) return ata_pci_init_one(pdev, port_info, 2); } +static int amd_reinit_one(struct pci_dev *pdev) +{ + if (pdev->vendor == PCI_VENDOR_ID_AMD) { + u8 fifo; + pci_read_config_byte(pdev, 0x41, &fifo); + if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7411) + /* FIFO is broken */ + pci_write_config_byte(pdev, 0x41, fifo & 0x0F); + else + pci_write_config_byte(pdev, 0x41, fifo | 0xF0); + if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7409 || + pdev->device == PCI_DEVICE_ID_AMD_COBRA_7401) + ata_pci_clear_simplex(pdev); + } + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id amd[] = { { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_COBRA_7401), 0 }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_VIPER_7409), 1 }, @@ -689,7 +707,9 @@ static struct pci_driver amd_pci_driver = { .name = DRV_NAME, .id_table = amd, .probe = amd_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = amd_reinit_one, }; static int __init amd_init(void) diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c index 2cd3076..37bc132 100644 --- a/drivers/ata/pata_artop.c +++ b/drivers/ata/pata_artop.c @@ -307,7 +307,6 @@ static struct scsi_host_template artop_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c index 4e1d3b5..6f6672c 100644 --- a/drivers/ata/pata_atiixp.c +++ b/drivers/ata/pata_atiixp.c @@ -22,7 +22,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_atiixp" -#define DRV_VERSION "0.4.3" +#define DRV_VERSION "0.4.4" enum { ATIIXP_IDE_PIO_TIMING = 0x40, @@ -209,7 +209,6 @@ static struct scsi_host_template atiixp_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -218,6 +217,8 @@ static struct scsi_host_template atiixp_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations atiixp_port_ops = { @@ -281,7 +282,9 @@ static struct pci_driver atiixp_pci_driver = { .name = DRV_NAME, .id_table = atiixp, .probe = atiixp_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .resume = ata_pci_device_resume, + .suspend = ata_pci_device_suspend, }; static int __init atiixp_init(void) diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c index 29a60df..15841a5 100644 --- a/drivers/ata/pata_cmd64x.c +++ b/drivers/ata/pata_cmd64x.c @@ -31,7 +31,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_cmd64x" -#define DRV_VERSION "0.2.1" +#define DRV_VERSION "0.2.2" /* * CMD64x specific registers definition. @@ -268,7 +268,6 @@ static struct scsi_host_template cmd64x_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -277,6 +276,8 @@ static struct scsi_host_template cmd64x_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations cmd64x_port_ops = { @@ -469,6 +470,20 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id) return ata_pci_init_one(pdev, port_info, 2); } +static int cmd64x_reinit_one(struct pci_dev *pdev) +{ + u8 mrdmode; + pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64); + pci_read_config_byte(pdev, MRDMODE, &mrdmode); + mrdmode &= ~ 0x30; /* IRQ set up */ + mrdmode |= 0x02; /* Memory read line enable */ + pci_write_config_byte(pdev, MRDMODE, mrdmode); +#ifdef CONFIG_PPC + pci_write_config_byte(pdev, UDIDETCR0, 0xF0); +#endif + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id cmd64x[] = { { PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_643), 0 }, { PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_646), 1 }, @@ -482,7 +497,9 @@ static struct pci_driver cmd64x_pci_driver = { .name = DRV_NAME, .id_table = cmd64x, .probe = cmd64x_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = cmd64x_reinit_one, }; static int __init cmd64x_init(void) diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c index 33d2b88..9f165a8 100644 --- a/drivers/ata/pata_cs5520.c +++ b/drivers/ata/pata_cs5520.c @@ -41,7 +41,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_cs5520" -#define DRV_VERSION "0.6.2" +#define DRV_VERSION "0.6.3" struct pio_clocks { @@ -159,7 +159,6 @@ static struct scsi_host_template cs5520_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -168,6 +167,8 @@ static struct scsi_host_template cs5520_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations cs5520_port_ops = { @@ -297,6 +298,22 @@ static void __devexit cs5520_remove_one(struct pci_dev *pdev) dev_set_drvdata(dev, NULL); } +/** + * cs5520_reinit_one - device resume + * @pdev: PCI device + * + * Do any reconfiguration work needed by a resume from RAM. We need + * to restore DMA mode support on BIOSen which disabled it + */ + +static int cs5520_reinit_one(struct pci_dev *pdev) +{ + u8 pcicfg; + pci_read_config_byte(pdev, 0x60, &pcicfg); + if ((pcicfg & 0x40) == 0) + pci_write_config_byte(pdev, 0x60, pcicfg | 0x40); + return ata_pci_device_resume(pdev); +} /* For now keep DMA off. We can set it for all but A rev CS5510 once the core ATA code can handle it */ @@ -311,7 +328,9 @@ static struct pci_driver cs5520_pci_driver = { .name = DRV_NAME, .id_table = pata_cs5520, .probe = cs5520_init_one, - .remove = cs5520_remove_one + .remove = cs5520_remove_one, + .suspend = ata_pci_device_suspend, + .resume = cs5520_reinit_one, }; static int __init cs5520_init(void) diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c index 981f492..1c62801 100644 --- a/drivers/ata/pata_cs5530.c +++ b/drivers/ata/pata_cs5530.c @@ -35,7 +35,7 @@ #include <linux/dmi.h> #define DRV_NAME "pata_cs5530" -#define DRV_VERSION "0.6" +#define DRV_VERSION "0.7.1" /** * cs5530_set_piomode - PIO setup @@ -173,7 +173,6 @@ static struct scsi_host_template cs5530_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -182,6 +181,8 @@ static struct scsi_host_template cs5530_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations cs5530_port_ops = { @@ -239,38 +240,18 @@ static int cs5530_is_palmax(void) return 0; } + /** - * cs5530_init_one - Initialise a CS5530 - * @dev: PCI device - * @id: Entry in match table + * cs5530_init_chip - Chipset init * - * Install a driver for the newly found CS5530 companion chip. Most of - * this is just housekeeping. We have to set the chip up correctly and - * turn off various bits of emulation magic. + * Perform the chip initialisation work that is shared between both + * setup and resume paths */ - -static int cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id) + +static int cs5530_init_chip(void) { - int compiler_warning_pointless_fix; - struct pci_dev *master_0 = NULL, *cs5530_0 = NULL; - static struct ata_port_info info = { - .sht = &cs5530_sht, - .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST, - .pio_mask = 0x1f, - .mwdma_mask = 0x07, - .udma_mask = 0x07, - .port_ops = &cs5530_port_ops - }; - /* The docking connector doesn't do UDMA, and it seems not MWDMA */ - static struct ata_port_info info_palmax_secondary = { - .sht = &cs5530_sht, - .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST, - .pio_mask = 0x1f, - .port_ops = &cs5530_port_ops - }; - static struct ata_port_info *port_info[2] = { &info, &info }; + struct pci_dev *master_0 = NULL, *cs5530_0 = NULL, *dev = NULL; - dev = NULL; while ((dev = pci_get_device(PCI_VENDOR_ID_CYRIX, PCI_ANY_ID, dev)) != NULL) { switch (dev->device) { case PCI_DEVICE_ID_CYRIX_PCI_MASTER: @@ -291,7 +272,7 @@ static int cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id) } pci_set_master(cs5530_0); - compiler_warning_pointless_fix = pci_set_mwi(cs5530_0); + pci_set_mwi(cs5530_0); /* * Set PCI CacheLineSize to 16-bytes: @@ -339,13 +320,7 @@ static int cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id) pci_dev_put(master_0); pci_dev_put(cs5530_0); - - if (cs5530_is_palmax()) - port_info[1] = &info_palmax_secondary; - - /* Now kick off ATA set up */ - return ata_pci_init_one(dev, port_info, 2); - + return 0; fail_put: if (master_0) pci_dev_put(master_0); @@ -354,6 +329,53 @@ fail_put: return -ENODEV; } +/** + * cs5530_init_one - Initialise a CS5530 + * @dev: PCI device + * @id: Entry in match table + * + * Install a driver for the newly found CS5530 companion chip. Most of + * this is just housekeeping. We have to set the chip up correctly and + * turn off various bits of emulation magic. + */ + +static int cs5530_init_one(struct pci_dev *pdev, const struct pci_device_id *id) +{ + static struct ata_port_info info = { + .sht = &cs5530_sht, + .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST, + .pio_mask = 0x1f, + .mwdma_mask = 0x07, + .udma_mask = 0x07, + .port_ops = &cs5530_port_ops + }; + /* The docking connector doesn't do UDMA, and it seems not MWDMA */ + static struct ata_port_info info_palmax_secondary = { + .sht = &cs5530_sht, + .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST, + .pio_mask = 0x1f, + .port_ops = &cs5530_port_ops + }; + static struct ata_port_info *port_info[2] = { &info, &info }; + + /* Chip initialisation */ + if (cs5530_init_chip()) + return -ENODEV; + + if (cs5530_is_palmax()) + port_info[1] = &info_palmax_secondary; + + /* Now kick off ATA set up */ + return ata_pci_init_one(pdev, port_info, 2); +} + +static int cs5530_reinit_one(struct pci_dev *pdev) +{ + /* If we fail on resume we are doomed */ + BUG_ON(cs5530_init_chip()); + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id cs5530[] = { { PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5530_IDE), }, @@ -364,7 +386,9 @@ static struct pci_driver cs5530_pci_driver = { .name = DRV_NAME, .id_table = cs5530, .probe = cs5530_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = cs5530_reinit_one, }; static int __init cs5530_init(void) diff --git a/drivers/ata/pata_cs5535.c b/drivers/ata/pata_cs5535.c index 8dafa4a..e3efec4 100644 --- a/drivers/ata/pata_cs5535.c +++ b/drivers/ata/pata_cs5535.c @@ -39,7 +39,7 @@ #include <asm/msr.h> #define DRV_NAME "cs5535" -#define DRV_VERSION "0.2.10" +#define DRV_VERSION "0.2.11" /* * The Geode (Aka Athlon GX now) uses an internal MSR based @@ -177,7 +177,6 @@ static struct scsi_host_template cs5535_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -186,6 +185,8 @@ static struct scsi_host_template cs5535_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations cs5535_port_ops = { @@ -268,7 +269,9 @@ static struct pci_driver cs5535_pci_driver = { .name = DRV_NAME, .id_table = cs5535, .probe = cs5535_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init cs5535_init(void) diff --git a/drivers/ata/pata_cypress.c b/drivers/ata/pata_cypress.c index 5a0b811..e2a9569 100644 --- a/drivers/ata/pata_cypress.c +++ b/drivers/ata/pata_cypress.c @@ -18,7 +18,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_cypress" -#define DRV_VERSION "0.1.2" +#define DRV_VERSION "0.1.4" /* here are the offset definitions for the registers */ @@ -128,7 +128,6 @@ static struct scsi_host_template cy82c693_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -137,6 +136,8 @@ static struct scsi_host_template cy82c693_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations cy82c693_port_ops = { @@ -204,7 +205,9 @@ static struct pci_driver cy82c693_pci_driver = { .name = DRV_NAME, .id_table = cy82c693, .probe = cy82c693_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init cy82c693_init(void) diff --git a/drivers/ata/pata_efar.c b/drivers/ata/pata_efar.c index 755f792..edf8a63 100644 --- a/drivers/ata/pata_efar.c +++ b/drivers/ata/pata_efar.c @@ -22,7 +22,7 @@ #include <linux/ata.h> #define DRV_NAME "pata_efar" -#define DRV_VERSION "0.4.2" +#define DRV_VERSION "0.4.3" /** * efar_pre_reset - check for 40/80 pin @@ -226,7 +226,6 @@ static struct scsi_host_template efar_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -235,6 +234,8 @@ static struct scsi_host_template efar_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static const struct ata_port_operations efar_ops = { @@ -316,6 +317,8 @@ static struct pci_driver efar_pci_driver = { .id_table = efar_pci_tbl, .probe = efar_init_one, .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init efar_init(void) diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c index c0e150a9..2663599 100644 --- a/drivers/ata/pata_hpt366.c +++ b/drivers/ata/pata_hpt366.c @@ -27,7 +27,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_hpt366" -#define DRV_VERSION "0.5" +#define DRV_VERSION "0.5.3" struct hpt_clock { u8 xfer_speed; @@ -222,9 +222,17 @@ static u32 hpt36x_find_mode(struct ata_port *ap, int speed) static int hpt36x_pre_reset(struct ata_port *ap) { + static const struct pci_bits hpt36x_enable_bits[] = { + { 0x50, 1, 0x04, 0x04 }, + { 0x54, 1, 0x04, 0x04 } + }; + u8 ata66; struct pci_dev *pdev = to_pci_dev(ap->host->dev); + if (!pci_test_config_bits(pdev, &hpt36x_enable_bits[ap->port_no])) + return -ENOENT; + pci_read_config_byte(pdev, 0x5A, &ata66); if (ata66 & (1 << ap->port_no)) ap->cbl = ATA_CBL_PATA40; @@ -322,7 +330,6 @@ static struct scsi_host_template hpt36x_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -331,6 +338,8 @@ static struct scsi_host_template hpt36x_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; /* @@ -373,6 +382,27 @@ static struct ata_port_operations hpt366_port_ops = { }; /** + * hpt36x_init_chipset - common chip setup + * @dev: PCI device + * + * Perform the chip setup work that must be done at both init and + * resume time + */ + +static void hpt36x_init_chipset(struct pci_dev *dev) +{ + u8 drive_fast; + pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4)); + pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78); + pci_write_config_byte(dev, PCI_MIN_GNT, 0x08); + pci_write_config_byte(dev, PCI_MAX_LAT, 0x08); + + pci_read_config_byte(dev, 0x51, &drive_fast); + if (drive_fast & 0x80) + pci_write_config_byte(dev, 0x51, drive_fast & ~0x80); +} + +/** * hpt36x_init_one - Initialise an HPT366/368 * @dev: PCI device * @id: Entry in match table @@ -407,7 +437,6 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id) u32 class_rev; u32 reg1; - u8 drive_fast; pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev); class_rev &= 0xFF; @@ -417,14 +446,7 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id) if (class_rev > 2) return -ENODEV; - pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4)); - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78); - pci_write_config_byte(dev, PCI_MIN_GNT, 0x08); - pci_write_config_byte(dev, PCI_MAX_LAT, 0x08); - - pci_read_config_byte(dev, 0x51, &drive_fast); - if (drive_fast & 0x80) - pci_write_config_byte(dev, 0x51, drive_fast & ~0x80); + hpt36x_init_chipset(dev); pci_read_config_dword(dev, 0x40, ®1); @@ -445,9 +467,15 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id) return ata_pci_init_one(dev, port_info, 2); } +static int hpt36x_reinit_one(struct pci_dev *dev) +{ + hpt36x_init_chipset(dev); + return ata_pci_device_resume(dev); +} + + static const struct pci_device_id hpt36x[] = { { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), }, - { }, }; @@ -455,7 +483,9 @@ static struct pci_driver hpt36x_pci_driver = { .name = DRV_NAME, .id_table = hpt36x, .probe = hpt36x_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = hpt36x_reinit_one, }; static int __init hpt36x_init(void) @@ -463,13 +493,11 @@ static int __init hpt36x_init(void) return pci_register_driver(&hpt36x_pci_driver); } - static void __exit hpt36x_exit(void) { pci_unregister_driver(&hpt36x_pci_driver); } - MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("low-level driver for the Highpoint HPT366/368"); MODULE_LICENSE("GPL"); diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c index 1eeb16f..47082df 100644 --- a/drivers/ata/pata_hpt37x.c +++ b/drivers/ata/pata_hpt37x.c @@ -768,7 +768,6 @@ static struct scsi_host_template hpt37x_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, diff --git a/drivers/ata/pata_hpt3x2n.c b/drivers/ata/pata_hpt3x2n.c index 47d7664..f6817b4 100644 --- a/drivers/ata/pata_hpt3x2n.c +++ b/drivers/ata/pata_hpt3x2n.c @@ -334,7 +334,6 @@ static struct scsi_host_template hpt3x2n_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, diff --git a/drivers/ata/pata_hpt3x3.c b/drivers/ata/pata_hpt3x3.c index d216cc5..5f1d385 100644 --- a/drivers/ata/pata_hpt3x3.c +++ b/drivers/ata/pata_hpt3x3.c @@ -23,7 +23,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_hpt3x3" -#define DRV_VERSION "0.4.1" +#define DRV_VERSION "0.4.2" static int hpt3x3_probe_init(struct ata_port *ap) { @@ -111,7 +111,6 @@ static struct scsi_host_template hpt3x3_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -120,6 +119,8 @@ static struct scsi_host_template hpt3x3_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations hpt3x3_port_ops = { @@ -158,6 +159,27 @@ static struct ata_port_operations hpt3x3_port_ops = { }; /** + * hpt3x3_init_chipset - chip setup + * @dev: PCI device + * + * Perform the setup required at boot and on resume. + */ + +static void hpt3x3_init_chipset(struct pci_dev *dev) +{ + u16 cmd; + /* Initialize the board */ + pci_write_config_word(dev, 0x80, 0x00); + /* Check if it is a 343 or a 363. 363 has COMMAND_MEMORY set */ + pci_read_config_word(dev, PCI_COMMAND, &cmd); + if (cmd & PCI_COMMAND_MEMORY) + pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0); + else + pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20); +} + + +/** * hpt3x3_init_one - Initialise an HPT343/363 * @dev: PCI device * @id: Entry in match table @@ -178,21 +200,18 @@ static int hpt3x3_init_one(struct pci_dev *dev, const struct pci_device_id *id) .port_ops = &hpt3x3_port_ops }; static struct ata_port_info *port_info[2] = { &info, &info }; - u16 cmd; - - /* Initialize the board */ - pci_write_config_word(dev, 0x80, 0x00); - /* Check if it is a 343 or a 363. 363 has COMMAND_MEMORY set */ - pci_read_config_word(dev, PCI_COMMAND, &cmd); - if (cmd & PCI_COMMAND_MEMORY) - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0); - else - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20); + hpt3x3_init_chipset(dev); /* Now kick off ATA set up */ return ata_pci_init_one(dev, port_info, 2); } +static int hpt3x3_reinit_one(struct pci_dev *dev) +{ + hpt3x3_init_chipset(dev); + return ata_pci_device_resume(dev); +} + static const struct pci_device_id hpt3x3[] = { { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT343), }, @@ -203,7 +222,9 @@ static struct pci_driver hpt3x3_pci_driver = { .name = DRV_NAME, .id_table = hpt3x3, .probe = hpt3x3_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = hpt3x3_reinit_one, }; static int __init hpt3x3_init(void) diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c index 40ca2b8..a97d55a 100644 --- a/drivers/ata/pata_isapnp.c +++ b/drivers/ata/pata_isapnp.c @@ -27,7 +27,6 @@ static struct scsi_host_template isapnp_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c index 7f68f14..0b56ff3 100644 --- a/drivers/ata/pata_it821x.c +++ b/drivers/ata/pata_it821x.c @@ -80,7 +80,7 @@ #define DRV_NAME "pata_it821x" -#define DRV_VERSION "0.3.2" +#define DRV_VERSION "0.3.3" struct it821x_dev { @@ -666,9 +666,6 @@ static struct scsi_host_template it821x_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - /* 255 sectors to begin with. This is locked in smart mode but not - in pass through */ - .max_sectors = 255, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -677,6 +674,8 @@ static struct scsi_host_template it821x_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations it821x_smart_port_ops = { @@ -809,6 +808,14 @@ static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id) return ata_pci_init_one(pdev, port_info, 2); } +static int it821x_reinit_one(struct pci_dev *pdev) +{ + /* Resume - turn raid back off if need be */ + if (it8212_noraid) + it821x_disable_raid(pdev); + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id it821x[] = { { PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8211), }, { PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8212), }, @@ -820,7 +827,9 @@ static struct pci_driver it821x_pci_driver = { .name = DRV_NAME, .id_table = it821x, .probe = it821x_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = it821x_reinit_one, }; static int __init it821x_init(void) diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c new file mode 100644 index 0000000..cb89241 --- /dev/null +++ b/drivers/ata/pata_ixp4xx_cf.c @@ -0,0 +1,271 @@ +/* + * ixp4xx PATA/Compact Flash driver + * Copyright (c) 2006 Tower Technologies + * Author: Alessandro Zummo <a.zummo@towertech.it> + * + * An ATA driver to handle a Compact Flash connected + * to the ixp4xx expansion bus in TrueIDE mode. The CF + * must have it chip selects connected to two CS lines + * on the ixp4xx. The interrupt line is optional, if not + * specified the driver will run in polling mode. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/libata.h> +#include <linux/irq.h> +#include <linux/platform_device.h> +#include <scsi/scsi_host.h> + +#define DRV_NAME "pata_ixp4xx_cf" +#define DRV_VERSION "0.1.1" + +static void ixp4xx_set_mode(struct ata_port *ap) +{ + int i; + + for (i = 0; i < ATA_MAX_DEVICES; i++) { + struct ata_device *dev = &ap->device[i]; + if (ata_dev_enabled(dev)) { + dev->pio_mode = XFER_PIO_0; + dev->xfer_mode = XFER_PIO_0; + dev->xfer_shift = ATA_SHIFT_PIO; + dev->flags |= ATA_DFLAG_PIO; + } + } +} + +static void ixp4xx_phy_reset(struct ata_port *ap) +{ + ap->cbl = ATA_CBL_PATA40; + ata_port_probe(ap); + ata_bus_reset(ap); +} + +static void ixp4xx_mmio_data_xfer(struct ata_device *adev, unsigned char *buf, + unsigned int buflen, int write_data) +{ + unsigned int i; + unsigned int words = buflen >> 1; + u16 *buf16 = (u16 *) buf; + struct ata_port *ap = adev->ap; + void __iomem *mmio = (void __iomem *)ap->ioaddr.data_addr; + struct ixp4xx_pata_data *data = ap->host->dev->platform_data; + + /* set the expansion bus in 16bit mode and restore + * 8 bit mode after the transaction. + */ + *data->cs0_cfg &= ~(0x01); + udelay(100); + + /* Transfer multiple of 2 bytes */ + if (write_data) { + for (i = 0; i < words; i++) + writew(buf16[i], mmio); + } else { + for (i = 0; i < words; i++) + buf16[i] = readw(mmio); + } + + /* Transfer trailing 1 byte, if any. */ + if (unlikely(buflen & 0x01)) { + u16 align_buf[1] = { 0 }; + unsigned char *trailing_buf = buf + buflen - 1; + + if (write_data) { + memcpy(align_buf, trailing_buf, 1); + writew(align_buf[0], mmio); + } else { + align_buf[0] = readw(mmio); + memcpy(trailing_buf, align_buf, 1); + } + } + + udelay(100); + *data->cs0_cfg |= 0x01; +} + +static void ixp4xx_irq_clear(struct ata_port *ap) +{ +} + +static void ixp4xx_host_stop (struct ata_host *host) +{ + struct ixp4xx_pata_data *data = host->dev->platform_data; + + iounmap(data->cs0); + iounmap(data->cs1); +} + +static struct scsi_host_template ixp4xx_sht = { + .module = THIS_MODULE, + .name = DRV_NAME, + .ioctl = ata_scsi_ioctl, + .queuecommand = ata_scsi_queuecmd, + .can_queue = ATA_DEF_QUEUE, + .this_id = ATA_SHT_THIS_ID, + .sg_tablesize = LIBATA_MAX_PRD, + .cmd_per_lun = ATA_SHT_CMD_PER_LUN, + .emulated = ATA_SHT_EMULATED, + .use_clustering = ATA_SHT_USE_CLUSTERING, + .proc_name = DRV_NAME, + .dma_boundary = ATA_DMA_BOUNDARY, + .slave_configure = ata_scsi_slave_config, + .slave_destroy = ata_scsi_slave_destroy, + .bios_param = ata_std_bios_param, +}; + +static struct ata_port_operations ixp4xx_port_ops = { + .set_mode = ixp4xx_set_mode, + .mode_filter = ata_pci_default_filter, + + .port_disable = ata_port_disable, + .tf_load = ata_tf_load, + .tf_read = ata_tf_read, + .check_status = ata_check_status, + .exec_command = ata_exec_command, + .dev_select = ata_std_dev_select, + + .qc_prep = ata_qc_prep, + .qc_issue = ata_qc_issue_prot, + .eng_timeout = ata_eng_timeout, + .data_xfer = ixp4xx_mmio_data_xfer, + + .irq_handler = ata_interrupt, + .irq_clear = ixp4xx_irq_clear, + + .port_start = ata_port_start, + .port_stop = ata_port_stop, + .host_stop = ixp4xx_host_stop, + + .phy_reset = ixp4xx_phy_reset, +}; + +static void ixp4xx_setup_port(struct ata_ioports *ioaddr, + struct ixp4xx_pata_data *data) +{ + ioaddr->cmd_addr = (unsigned long) data->cs0; + ioaddr->altstatus_addr = (unsigned long) data->cs1 + 0x06; + ioaddr->ctl_addr = (unsigned long) data->cs1 + 0x06; + + ata_std_ports(ioaddr); + +#ifndef __ARMEB__ + + /* adjust the addresses to handle the address swizzling of the + * ixp4xx in little endian mode. + */ + + ioaddr->data_addr ^= 0x02; + ioaddr->cmd_addr ^= 0x03; + ioaddr->altstatus_addr ^= 0x03; + ioaddr->ctl_addr ^= 0x03; + ioaddr->error_addr ^= 0x03; + ioaddr->feature_addr ^= 0x03; + ioaddr->nsect_addr ^= 0x03; + ioaddr->lbal_addr ^= 0x03; + ioaddr->lbam_addr ^= 0x03; + ioaddr->lbah_addr ^= 0x03; + ioaddr->device_addr ^= 0x03; + ioaddr->status_addr ^= 0x03; + ioaddr->command_addr ^= 0x03; +#endif +} + +static __devinit int ixp4xx_pata_probe(struct platform_device *pdev) +{ + int ret; + unsigned int irq; + struct resource *cs0, *cs1; + struct ata_probe_ent ae; + + struct ixp4xx_pata_data *data = pdev->dev.platform_data; + + cs0 = platform_get_resource(pdev, IORESOURCE_MEM, 0); + cs1 = platform_get_resource(pdev, IORESOURCE_MEM, 1); + + if (!cs0 || !cs1) + return -EINVAL; + + pdev->dev.coherent_dma_mask = DMA_32BIT_MASK; + + data->cs0 = ioremap(cs0->start, 0x1000); + data->cs1 = ioremap(cs1->start, 0x1000); + + irq = platform_get_irq(pdev, 0); + if (irq) + set_irq_type(irq, IRQT_HIGH); + + /* Setup expansion bus chip selects */ + *data->cs0_cfg = data->cs0_bits; + *data->cs1_cfg = data->cs1_bits; + + memset(&ae, 0, sizeof(struct ata_probe_ent)); + INIT_LIST_HEAD(&ae.node); + + ae.dev = &pdev->dev; + ae.port_ops = &ixp4xx_port_ops; + ae.sht = &ixp4xx_sht; + ae.n_ports = 1; + ae.pio_mask = 0x1f; /* PIO4 */ + ae.irq = irq; + ae.irq_flags = 0; + ae.port_flags = ATA_FLAG_MMIO | ATA_FLAG_NO_LEGACY + | ATA_FLAG_NO_ATAPI | ATA_FLAG_SRST; + + /* run in polling mode if no irq has been assigned */ + if (!irq) + ae.port_flags |= ATA_FLAG_PIO_POLLING; + + ixp4xx_setup_port(&ae.port[0], data); + + dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n"); + + ret = ata_device_add(&ae); + if (ret == 0) + return -ENODEV; + + return 0; +} + +static __devexit int ixp4xx_pata_remove(struct platform_device *dev) +{ + struct ata_host *host = platform_get_drvdata(dev); + + ata_host_remove(host); + platform_set_drvdata(dev, NULL); + + return 0; +} + +static struct platform_driver ixp4xx_pata_platform_driver = { + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + }, + .probe = ixp4xx_pata_probe, + .remove = __devexit_p(ixp4xx_pata_remove), +}; + +static int __init ixp4xx_pata_init(void) +{ + return platform_driver_register(&ixp4xx_pata_platform_driver); +} + +static void __exit ixp4xx_pata_exit(void) +{ + platform_driver_unregister(&ixp4xx_pata_platform_driver); +} + +MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>"); +MODULE_DESCRIPTION("low-level driver for ixp4xx Compact Flash PATA"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +module_init(ixp4xx_pata_init); +module_exit(ixp4xx_pata_exit); diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c index 0210b10..2d661cb 100644 --- a/drivers/ata/pata_jmicron.c +++ b/drivers/ata/pata_jmicron.c @@ -19,7 +19,7 @@ #include <linux/ata.h> #define DRV_NAME "pata_jmicron" -#define DRV_VERSION "0.1.2" +#define DRV_VERSION "0.1.4" typedef enum { PORT_PATA0 = 0, @@ -128,8 +128,6 @@ static struct scsi_host_template jmicron_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - /* Special handling needed if you have sector or LBA48 limits */ - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -213,12 +211,11 @@ static int jmicron_init_one (struct pci_dev *pdev, const struct pci_device_id *i /* FIXME: We may want a way to override this in future */ pci_write_config_byte(pdev, 0x41, 0xa1); - } - - /* PATA controller is fn 1, AHCI is fn 0 */ - if (PCI_FUNC(pdev->devfn) != 1) - return -ENODEV; + /* PATA controller is fn 1, AHCI is fn 0 */ + if (PCI_FUNC(pdev->devfn) != 1) + return -ENODEV; + } if ( id->driver_data == 365 || id->driver_data == 366) { /* The 365/66 have two PATA channels, redirect the second */ pci_read_config_dword(pdev, 0x80, ®); @@ -229,6 +226,27 @@ static int jmicron_init_one (struct pci_dev *pdev, const struct pci_device_id *i return ata_pci_init_one(pdev, port_info, 2); } +static int jmicron_reinit_one(struct pci_dev *pdev) +{ + u32 reg; + + switch(pdev->device) { + case PCI_DEVICE_ID_JMICRON_JMB368: + break; + case PCI_DEVICE_ID_JMICRON_JMB365: + case PCI_DEVICE_ID_JMICRON_JMB366: + /* Restore mapping or disks swap and boy does it get ugly */ + pci_read_config_dword(pdev, 0x80, ®); + reg |= (1 << 24); /* IDE1 to PATA IDE secondary */ + pci_write_config_dword(pdev, 0x80, reg); + /* Fall through */ + default: + /* Make sure AHCI is turned back on */ + pci_write_config_byte(pdev, 0x41, 0xa1); + } + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id jmicron_pci_tbl[] = { { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB361), 361}, { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB363), 363}, @@ -244,6 +262,8 @@ static struct pci_driver jmicron_pci_driver = { .id_table = jmicron_pci_tbl, .probe = jmicron_init_one, .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = jmicron_reinit_one, }; static int __init jmicron_init(void) diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c index b39078b..c7d1738 100644 --- a/drivers/ata/pata_legacy.c +++ b/drivers/ata/pata_legacy.c @@ -128,7 +128,6 @@ static struct scsi_host_template legacy_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c new file mode 100644 index 0000000..1c810ea --- /dev/null +++ b/drivers/ata/pata_marvell.c @@ -0,0 +1,224 @@ +/* + * Marvell PATA driver. + * + * For the moment we drive the PATA port in legacy mode. That + * isn't making full use of the device functionality but it is + * easy to get working. + * + * (c) 2006 Red Hat <alan@redhat.com> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/blkdev.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <scsi/scsi_host.h> +#include <linux/libata.h> +#include <linux/ata.h> + +#define DRV_NAME "pata_marvell" +#define DRV_VERSION "0.1.1" + +/** + * marvell_pre_reset - check for 40/80 pin + * @ap: Port + * + * Perform the PATA port setup we need. + */ + +static int marvell_pre_reset(struct ata_port *ap) +{ + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + u32 devices; + void __iomem *barp; + int i; + + /* Check if our port is enabled */ + + barp = pci_iomap(pdev, 5, 0x10); + if (barp == NULL) + return -ENOMEM; + printk("BAR5:"); + for(i = 0; i <= 0x0F; i++) + printk("%02X:%02X ", i, readb(barp + i)); + printk("\n"); + + devices = readl(barp + 0x0C); + pci_iounmap(pdev, barp); + + if ((pdev->device == 0x6145) && (ap->port_no == 0) && + (!(devices & 0x10))) /* PATA enable ? */ + return -ENOENT; + + /* Cable type */ + switch(ap->port_no) + { + case 0: + if (inb(ap->ioaddr.bmdma_addr + 1) & 1) + ap->cbl = ATA_CBL_PATA40; + else + ap->cbl = ATA_CBL_PATA80; + break; + + case 1: /* Legacy SATA port */ + ap->cbl = ATA_CBL_SATA; + break; + } + return ata_std_prereset(ap); +} + +/** + * marvell_error_handler - Setup and error handler + * @ap: Port to handle + * + * LOCKING: + * None (inherited from caller). + */ + +static void marvell_error_handler(struct ata_port *ap) +{ + return ata_bmdma_drive_eh(ap, marvell_pre_reset, ata_std_softreset, + NULL, ata_std_postreset); +} + +/* No PIO or DMA methods needed for this device */ + +static struct scsi_host_template marvell_sht = { + .module = THIS_MODULE, + .name = DRV_NAME, + .ioctl = ata_scsi_ioctl, + .queuecommand = ata_scsi_queuecmd, + .can_queue = ATA_DEF_QUEUE, + .this_id = ATA_SHT_THIS_ID, + .sg_tablesize = LIBATA_MAX_PRD, + .cmd_per_lun = ATA_SHT_CMD_PER_LUN, + .emulated = ATA_SHT_EMULATED, + .use_clustering = ATA_SHT_USE_CLUSTERING, + .proc_name = DRV_NAME, + .dma_boundary = ATA_DMA_BOUNDARY, + .slave_configure = ata_scsi_slave_config, + .slave_destroy = ata_scsi_slave_destroy, + /* Use standard CHS mapping rules */ + .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, +}; + +static const struct ata_port_operations marvell_ops = { + .port_disable = ata_port_disable, + + /* Task file is PCI ATA format, use helpers */ + .tf_load = ata_tf_load, + .tf_read = ata_tf_read, + .check_status = ata_check_status, + .exec_command = ata_exec_command, + .dev_select = ata_std_dev_select, + + .freeze = ata_bmdma_freeze, + .thaw = ata_bmdma_thaw, + .error_handler = marvell_error_handler, + .post_internal_cmd = ata_bmdma_post_internal_cmd, + + /* BMDMA handling is PCI ATA format, use helpers */ + .bmdma_setup = ata_bmdma_setup, + .bmdma_start = ata_bmdma_start, + .bmdma_stop = ata_bmdma_stop, + .bmdma_status = ata_bmdma_status, + .qc_prep = ata_qc_prep, + .qc_issue = ata_qc_issue_prot, + .data_xfer = ata_pio_data_xfer, + + /* Timeout handling */ + .irq_handler = ata_interrupt, + .irq_clear = ata_bmdma_irq_clear, + + /* Generic PATA PCI ATA helpers */ + .port_start = ata_port_start, + .port_stop = ata_port_stop, + .host_stop = ata_host_stop, +}; + + +/** + * marvell_init_one - Register Marvell ATA PCI device with kernel services + * @pdev: PCI device to register + * @ent: Entry in marvell_pci_tbl matching with @pdev + * + * Called from kernel PCI layer. + * + * LOCKING: + * Inherited from PCI layer (may sleep). + * + * RETURNS: + * Zero on success, or -ERRNO value. + */ + +static int marvell_init_one (struct pci_dev *pdev, const struct pci_device_id *id) +{ + static struct ata_port_info info = { + .sht = &marvell_sht, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + + .pio_mask = 0x1f, + .mwdma_mask = 0x07, + .udma_mask = 0x3f, + + .port_ops = &marvell_ops, + }; + static struct ata_port_info info_sata = { + .sht = &marvell_sht, + /* Slave possible as its magically mapped not real */ + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + + .pio_mask = 0x1f, + .mwdma_mask = 0x07, + .udma_mask = 0x7f, + + .port_ops = &marvell_ops, + }; + struct ata_port_info *port_info[2] = { &info, &info_sata }; + int n_port = 2; + + if (pdev->device == 0x6101) + n_port = 1; + + return ata_pci_init_one(pdev, port_info, n_port); +} + +static const struct pci_device_id marvell_pci_tbl[] = { + { PCI_DEVICE(0x11AB, 0x6101), }, + { PCI_DEVICE(0x11AB, 0x6145), }, + { } /* terminate list */ +}; + +static struct pci_driver marvell_pci_driver = { + .name = DRV_NAME, + .id_table = marvell_pci_tbl, + .probe = marvell_init_one, + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, +}; + +static int __init marvell_init(void) +{ + return pci_register_driver(&marvell_pci_driver); +} + +static void __exit marvell_exit(void) +{ + pci_unregister_driver(&marvell_pci_driver); +} + +module_init(marvell_init); +module_exit(marvell_exit); + +MODULE_AUTHOR("Alan Cox"); +MODULE_DESCRIPTION("SCSI low-level driver for Marvell ATA in legacy mode"); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(pci, marvell_pci_tbl); +MODULE_VERSION(DRV_VERSION); + diff --git a/drivers/ata/pata_mpiix.c b/drivers/ata/pata_mpiix.c index e00d406..4ccca93 100644 --- a/drivers/ata/pata_mpiix.c +++ b/drivers/ata/pata_mpiix.c @@ -35,7 +35,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_mpiix" -#define DRV_VERSION "0.7.2" +#define DRV_VERSION "0.7.3" enum { IDETIM = 0x6C, /* IDE control register */ @@ -159,7 +159,6 @@ static struct scsi_host_template mpiix_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -168,6 +167,8 @@ static struct scsi_host_template mpiix_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations mpiix_port_ops = { @@ -285,7 +286,9 @@ static struct pci_driver mpiix_pci_driver = { .name = DRV_NAME, .id_table = mpiix, .probe = mpiix_init_one, - .remove = mpiix_remove_one + .remove = mpiix_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init mpiix_init(void) diff --git a/drivers/ata/pata_netcell.c b/drivers/ata/pata_netcell.c index 1963a4d..cf7fe03 100644 --- a/drivers/ata/pata_netcell.c +++ b/drivers/ata/pata_netcell.c @@ -16,7 +16,7 @@ #include <linux/ata.h> #define DRV_NAME "pata_netcell" -#define DRV_VERSION "0.1.5" +#define DRV_VERSION "0.1.6" /** * netcell_probe_init - check for 40/80 pin @@ -54,8 +54,6 @@ static struct scsi_host_template netcell_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - /* Special handling needed if you have sector or LBA48 limits */ - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -65,6 +63,8 @@ static struct scsi_host_template netcell_sht = { .slave_destroy = ata_scsi_slave_destroy, /* Use standard CHS mapping rules */ .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static const struct ata_port_operations netcell_ops = { @@ -153,6 +153,8 @@ static struct pci_driver netcell_pci_driver = { .id_table = netcell_pci_tbl, .probe = netcell_init_one, .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init netcell_init(void) diff --git a/drivers/ata/pata_ns87410.c b/drivers/ata/pata_ns87410.c index 7ec800f..c3032eb 100644 --- a/drivers/ata/pata_ns87410.c +++ b/drivers/ata/pata_ns87410.c @@ -28,7 +28,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_ns87410" -#define DRV_VERSION "0.4.2" +#define DRV_VERSION "0.4.3" /** * ns87410_pre_reset - probe begin @@ -149,7 +149,6 @@ static struct scsi_host_template ns87410_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -158,6 +157,8 @@ static struct scsi_host_template ns87410_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations ns87410_port_ops = { @@ -210,7 +211,9 @@ static struct pci_driver ns87410_pci_driver = { .name = DRV_NAME, .id_table = ns87410, .probe = ns87410_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init ns87410_init(void) diff --git a/drivers/ata/pata_oldpiix.c b/drivers/ata/pata_oldpiix.c index 8837256..10ac3cc 100644 --- a/drivers/ata/pata_oldpiix.c +++ b/drivers/ata/pata_oldpiix.c @@ -224,7 +224,6 @@ static struct scsi_host_template oldpiix_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -233,6 +232,8 @@ static struct scsi_host_template oldpiix_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static const struct ata_port_operations oldpiix_pata_ops = { @@ -314,6 +315,8 @@ static struct pci_driver oldpiix_pci_driver = { .id_table = oldpiix_pci_tbl, .probe = oldpiix_init_one, .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init oldpiix_init(void) diff --git a/drivers/ata/pata_opti.c b/drivers/ata/pata_opti.c index c6319cf..c2988b0 100644 --- a/drivers/ata/pata_opti.c +++ b/drivers/ata/pata_opti.c @@ -34,7 +34,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_opti" -#define DRV_VERSION "0.2.5" +#define DRV_VERSION "0.2.7" enum { READ_REG = 0, /* index of Read cycle timing register */ @@ -109,30 +109,6 @@ static void opti_write_reg(struct ata_port *ap, u8 val, int reg) outb(0x83, regio + 2); } -#if 0 -/** - * opti_read_reg - control register read - * @ap: ATA port - * @reg: control register number - * - * The Opti uses magic 'trapdoor' register accesses to do configuration - * rather than using PCI space as other controllers do. The double inw - * on the error register activates configuration mode. We can then read - * the control register - */ - -static u8 opti_read_reg(struct ata_port *ap, int reg) -{ - unsigned long regio = ap->ioaddr.cmd_addr; - u8 ret; - inw(regio + 1); - inw(regio + 1); - outb(3, regio + 2); - ret = inb(regio + reg); - outb(0x83, regio + 2); -} -#endif - /** * opti_set_piomode - set initial PIO mode data * @ap: ATA interface @@ -195,7 +171,6 @@ static struct scsi_host_template opti_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -204,12 +179,13 @@ static struct scsi_host_template opti_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations opti_port_ops = { .port_disable = ata_port_disable, .set_piomode = opti_set_piomode, -/* .set_dmamode = opti_set_dmamode, */ .tf_load = ata_tf_load, .tf_read = ata_tf_read, .check_status = ata_check_status, @@ -267,7 +243,9 @@ static struct pci_driver opti_pci_driver = { .name = DRV_NAME, .id_table = opti, .probe = opti_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init opti_init(void) diff --git a/drivers/ata/pata_optidma.c b/drivers/ata/pata_optidma.c index 2f4770c..80d111c 100644 --- a/drivers/ata/pata_optidma.c +++ b/drivers/ata/pata_optidma.c @@ -33,7 +33,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_optidma" -#define DRV_VERSION "0.2.2" +#define DRV_VERSION "0.2.3" enum { READ_REG = 0, /* index of Read cycle timing register */ @@ -352,7 +352,6 @@ static struct scsi_host_template optidma_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -361,6 +360,8 @@ static struct scsi_host_template optidma_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations optidma_port_ops = { @@ -522,7 +523,9 @@ static struct pci_driver optidma_pci_driver = { .name = DRV_NAME, .id_table = optidma, .probe = optidma_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init optidma_init(void) diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c index 999922d..4ca6fa5 100644 --- a/drivers/ata/pata_pcmcia.c +++ b/drivers/ata/pata_pcmcia.c @@ -62,7 +62,6 @@ static struct scsi_host_template pcmcia_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c index beb6d10..76dd1c9 100644 --- a/drivers/ata/pata_pdc2027x.c +++ b/drivers/ata/pata_pdc2027x.c @@ -134,7 +134,6 @@ static struct scsi_host_template pdc2027x_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -854,7 +853,7 @@ static void __devexit pdc2027x_remove_one(struct pci_dev *pdev) */ static int __init pdc2027x_init(void) { - return pci_module_init(&pdc2027x_pci_driver); + return pci_register_driver(&pdc2027x_pci_driver); } /** diff --git a/drivers/ata/pata_pdc202xx_old.c b/drivers/ata/pata_pdc202xx_old.c index 6baf51b..ad691b9 100644 --- a/drivers/ata/pata_pdc202xx_old.c +++ b/drivers/ata/pata_pdc202xx_old.c @@ -21,7 +21,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_pdc202xx_old" -#define DRV_VERSION "0.2.1" +#define DRV_VERSION "0.2.3" /** * pdc2024x_pre_reset - probe begin @@ -63,7 +63,7 @@ static void pdc2026x_error_handler(struct ata_port *ap) } /** - * pdc_configure_piomode - set chip PIO timing + * pdc202xx_configure_piomode - set chip PIO timing * @ap: ATA interface * @adev: ATA device * @pio: PIO mode @@ -73,7 +73,7 @@ static void pdc2026x_error_handler(struct ata_port *ap) * versa */ -static void pdc_configure_piomode(struct ata_port *ap, struct ata_device *adev, int pio) +static void pdc202xx_configure_piomode(struct ata_port *ap, struct ata_device *adev, int pio) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); int port = 0x60 + 4 * ap->port_no + 2 * adev->devno; @@ -98,7 +98,7 @@ static void pdc_configure_piomode(struct ata_port *ap, struct ata_device *adev, } /** - * pdc_set_piomode - set initial PIO mode data + * pdc202xx_set_piomode - set initial PIO mode data * @ap: ATA interface * @adev: ATA device * @@ -106,13 +106,13 @@ static void pdc_configure_piomode(struct ata_port *ap, struct ata_device *adev, * but we want to set the PIO timing by default. */ -static void pdc_set_piomode(struct ata_port *ap, struct ata_device *adev) +static void pdc202xx_set_piomode(struct ata_port *ap, struct ata_device *adev) { - pdc_configure_piomode(ap, adev, adev->pio_mode - XFER_PIO_0); + pdc202xx_configure_piomode(ap, adev, adev->pio_mode - XFER_PIO_0); } /** - * pdc_configure_dmamode - set DMA mode in chip + * pdc202xx_configure_dmamode - set DMA mode in chip * @ap: ATA interface * @adev: ATA device * @@ -120,7 +120,7 @@ static void pdc_set_piomode(struct ata_port *ap, struct ata_device *adev) * to occur. */ -static void pdc_set_dmamode(struct ata_port *ap, struct ata_device *adev) +static void pdc202xx_set_dmamode(struct ata_port *ap, struct ata_device *adev) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); int port = 0x60 + 4 * ap->port_no + 2 * adev->devno; @@ -184,7 +184,7 @@ static void pdc2026x_bmdma_start(struct ata_queued_cmd *qc) /* The DMA clocks may have been trashed by a reset. FIXME: make conditional and move to qc_issue ? */ - pdc_set_dmamode(ap, qc->dev); + pdc202xx_set_dmamode(ap, qc->dev); /* Cases the state machine will not complete correctly without help */ if ((tf->flags & ATA_TFLAG_LBA48) || tf->protocol == ATA_PROT_ATAPI_DMA) @@ -254,7 +254,7 @@ static void pdc2026x_dev_config(struct ata_port *ap, struct ata_device *adev) adev->max_sectors = 256; } -static struct scsi_host_template pdc_sht = { +static struct scsi_host_template pdc202xx_sht = { .module = THIS_MODULE, .name = DRV_NAME, .ioctl = ata_scsi_ioctl, @@ -262,7 +262,6 @@ static struct scsi_host_template pdc_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -271,12 +270,14 @@ static struct scsi_host_template pdc_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations pdc2024x_port_ops = { .port_disable = ata_port_disable, - .set_piomode = pdc_set_piomode, - .set_dmamode = pdc_set_dmamode, + .set_piomode = pdc202xx_set_piomode, + .set_dmamode = pdc202xx_set_dmamode, .mode_filter = ata_pci_default_filter, .tf_load = ata_tf_load, .tf_read = ata_tf_read, @@ -308,8 +309,8 @@ static struct ata_port_operations pdc2024x_port_ops = { static struct ata_port_operations pdc2026x_port_ops = { .port_disable = ata_port_disable, - .set_piomode = pdc_set_piomode, - .set_dmamode = pdc_set_dmamode, + .set_piomode = pdc202xx_set_piomode, + .set_dmamode = pdc202xx_set_dmamode, .mode_filter = ata_pci_default_filter, .tf_load = ata_tf_load, .tf_read = ata_tf_read, @@ -340,11 +341,11 @@ static struct ata_port_operations pdc2026x_port_ops = { .host_stop = ata_host_stop }; -static int pdc_init_one(struct pci_dev *dev, const struct pci_device_id *id) +static int pdc202xx_init_one(struct pci_dev *dev, const struct pci_device_id *id) { static struct ata_port_info info[3] = { { - .sht = &pdc_sht, + .sht = &pdc202xx_sht, .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, .pio_mask = 0x1f, .mwdma_mask = 0x07, @@ -352,7 +353,7 @@ static int pdc_init_one(struct pci_dev *dev, const struct pci_device_id *id) .port_ops = &pdc2024x_port_ops }, { - .sht = &pdc_sht, + .sht = &pdc202xx_sht, .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, .pio_mask = 0x1f, .mwdma_mask = 0x07, @@ -360,7 +361,7 @@ static int pdc_init_one(struct pci_dev *dev, const struct pci_device_id *id) .port_ops = &pdc2026x_port_ops }, { - .sht = &pdc_sht, + .sht = &pdc202xx_sht, .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, .pio_mask = 0x1f, .mwdma_mask = 0x07, @@ -386,7 +387,7 @@ static int pdc_init_one(struct pci_dev *dev, const struct pci_device_id *id) return ata_pci_init_one(dev, port_info, 2); } -static const struct pci_device_id pdc[] = { +static const struct pci_device_id pdc202xx[] = { { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20246), 0 }, { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20262), 1 }, { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20263), 1 }, @@ -396,28 +397,30 @@ static const struct pci_device_id pdc[] = { { }, }; -static struct pci_driver pdc_pci_driver = { +static struct pci_driver pdc202xx_pci_driver = { .name = DRV_NAME, - .id_table = pdc, - .probe = pdc_init_one, - .remove = ata_pci_remove_one + .id_table = pdc202xx, + .probe = pdc202xx_init_one, + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; -static int __init pdc_init(void) +static int __init pdc202xx_init(void) { - return pci_register_driver(&pdc_pci_driver); + return pci_register_driver(&pdc202xx_pci_driver); } -static void __exit pdc_exit(void) +static void __exit pdc202xx_exit(void) { - pci_unregister_driver(&pdc_pci_driver); + pci_unregister_driver(&pdc202xx_pci_driver); } MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("low-level driver for Promise 2024x and 20262-20267"); MODULE_LICENSE("GPL"); -MODULE_DEVICE_TABLE(pci, pdc); +MODULE_DEVICE_TABLE(pci, pdc202xx); MODULE_VERSION(DRV_VERSION); -module_init(pdc_init); -module_exit(pdc_exit); +module_init(pdc202xx_init); +module_exit(pdc202xx_exit); diff --git a/drivers/ata/pata_platform.c b/drivers/ata/pata_platform.c new file mode 100644 index 0000000..443b1d8 --- /dev/null +++ b/drivers/ata/pata_platform.c @@ -0,0 +1,295 @@ +/* + * Generic platform device PATA driver + * + * Copyright (C) 2006 Paul Mundt + * + * Based on pata_pcmcia: + * + * Copyright 2005-2006 Red Hat Inc <alan@redhat.com>, all rights reserved. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/blkdev.h> +#include <scsi/scsi_host.h> +#include <linux/ata.h> +#include <linux/libata.h> +#include <linux/platform_device.h> +#include <linux/pata_platform.h> + +#define DRV_NAME "pata_platform" +#define DRV_VERSION "0.1.2" + +static int pio_mask = 1; + +/* + * Provide our own set_mode() as we don't want to change anything that has + * already been configured.. + */ +static void pata_platform_set_mode(struct ata_port *ap) +{ + int i; + + for (i = 0; i < ATA_MAX_DEVICES; i++) { + struct ata_device *dev = &ap->device[i]; + + if (ata_dev_enabled(dev)) { + /* We don't really care */ + dev->pio_mode = dev->xfer_mode = XFER_PIO_0; + dev->xfer_shift = ATA_SHIFT_PIO; + dev->flags |= ATA_DFLAG_PIO; + } + } +} + +static void pata_platform_host_stop(struct ata_host *host) +{ + int i; + + /* + * Unmap the bases for MMIO + */ + for (i = 0; i < host->n_ports; i++) { + struct ata_port *ap = host->ports[i]; + + if (ap->flags & ATA_FLAG_MMIO) { + iounmap((void __iomem *)ap->ioaddr.ctl_addr); + iounmap((void __iomem *)ap->ioaddr.cmd_addr); + } + } +} + +static struct scsi_host_template pata_platform_sht = { + .module = THIS_MODULE, + .name = DRV_NAME, + .ioctl = ata_scsi_ioctl, + .queuecommand = ata_scsi_queuecmd, + .can_queue = ATA_DEF_QUEUE, + .this_id = ATA_SHT_THIS_ID, + .sg_tablesize = LIBATA_MAX_PRD, + .cmd_per_lun = ATA_SHT_CMD_PER_LUN, + .emulated = ATA_SHT_EMULATED, + .use_clustering = ATA_SHT_USE_CLUSTERING, + .proc_name = DRV_NAME, + .dma_boundary = ATA_DMA_BOUNDARY, + .slave_configure = ata_scsi_slave_config, + .slave_destroy = ata_scsi_slave_destroy, + .bios_param = ata_std_bios_param, +}; + +static struct ata_port_operations pata_platform_port_ops = { + .set_mode = pata_platform_set_mode, + + .port_disable = ata_port_disable, + .tf_load = ata_tf_load, + .tf_read = ata_tf_read, + .check_status = ata_check_status, + .exec_command = ata_exec_command, + .dev_select = ata_std_dev_select, + + .freeze = ata_bmdma_freeze, + .thaw = ata_bmdma_thaw, + .error_handler = ata_bmdma_error_handler, + .post_internal_cmd = ata_bmdma_post_internal_cmd, + + .qc_prep = ata_qc_prep, + .qc_issue = ata_qc_issue_prot, + + .data_xfer = ata_pio_data_xfer_noirq, + + .irq_handler = ata_interrupt, + .irq_clear = ata_bmdma_irq_clear, + + .port_start = ata_port_start, + .port_stop = ata_port_stop, + .host_stop = pata_platform_host_stop +}; + +static void pata_platform_setup_port(struct ata_ioports *ioaddr, + struct pata_platform_info *info) +{ + unsigned int shift = 0; + + /* Fixup the port shift for platforms that need it */ + if (info && info->ioport_shift) + shift = info->ioport_shift; + + ioaddr->data_addr = ioaddr->cmd_addr + (ATA_REG_DATA << shift); + ioaddr->error_addr = ioaddr->cmd_addr + (ATA_REG_ERR << shift); + ioaddr->feature_addr = ioaddr->cmd_addr + (ATA_REG_FEATURE << shift); + ioaddr->nsect_addr = ioaddr->cmd_addr + (ATA_REG_NSECT << shift); + ioaddr->lbal_addr = ioaddr->cmd_addr + (ATA_REG_LBAL << shift); + ioaddr->lbam_addr = ioaddr->cmd_addr + (ATA_REG_LBAM << shift); + ioaddr->lbah_addr = ioaddr->cmd_addr + (ATA_REG_LBAH << shift); + ioaddr->device_addr = ioaddr->cmd_addr + (ATA_REG_DEVICE << shift); + ioaddr->status_addr = ioaddr->cmd_addr + (ATA_REG_STATUS << shift); + ioaddr->command_addr = ioaddr->cmd_addr + (ATA_REG_CMD << shift); +} + +/** + * pata_platform_probe - attach a platform interface + * @pdev: platform device + * + * Register a platform bus IDE interface. Such interfaces are PIO and we + * assume do not support IRQ sharing. + * + * Platform devices are expected to contain 3 resources per port: + * + * - I/O Base (IORESOURCE_IO or IORESOURCE_MEM) + * - CTL Base (IORESOURCE_IO or IORESOURCE_MEM) + * - IRQ (IORESOURCE_IRQ) + * + * If the base resources are both mem types, the ioremap() is handled + * here. For IORESOURCE_IO, it's assumed that there's no remapping + * necessary. + */ +static int __devinit pata_platform_probe(struct platform_device *pdev) +{ + struct resource *io_res, *ctl_res; + struct ata_probe_ent ae; + unsigned int mmio; + int ret; + + /* + * Simple resource validation .. + */ + if (unlikely(pdev->num_resources != 3)) { + dev_err(&pdev->dev, "invalid number of resources\n"); + return -EINVAL; + } + + /* + * Get the I/O base first + */ + io_res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (io_res == NULL) { + io_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (unlikely(io_res == NULL)) + return -EINVAL; + } + + /* + * Then the CTL base + */ + ctl_res = platform_get_resource(pdev, IORESOURCE_IO, 1); + if (ctl_res == NULL) { + ctl_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (unlikely(ctl_res == NULL)) + return -EINVAL; + } + + /* + * Check for MMIO + */ + mmio = (( io_res->flags == IORESOURCE_MEM) && + (ctl_res->flags == IORESOURCE_MEM)); + + /* + * Now that that's out of the way, wire up the port.. + */ + memset(&ae, 0, sizeof(struct ata_probe_ent)); + INIT_LIST_HEAD(&ae.node); + ae.dev = &pdev->dev; + ae.port_ops = &pata_platform_port_ops; + ae.sht = &pata_platform_sht; + ae.n_ports = 1; + ae.pio_mask = pio_mask; + ae.irq = platform_get_irq(pdev, 0); + ae.irq_flags = 0; + ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST; + + /* + * Handle the MMIO case + */ + if (mmio) { + ae.port_flags |= ATA_FLAG_MMIO; + + ae.port[0].cmd_addr = (unsigned long)ioremap(io_res->start, + io_res->end - io_res->start + 1); + if (unlikely(!ae.port[0].cmd_addr)) { + dev_err(&pdev->dev, "failed to remap IO base\n"); + return -ENXIO; + } + + ae.port[0].ctl_addr = (unsigned long)ioremap(ctl_res->start, + ctl_res->end - ctl_res->start + 1); + if (unlikely(!ae.port[0].ctl_addr)) { + dev_err(&pdev->dev, "failed to remap CTL base\n"); + ret = -ENXIO; + goto bad_remap; + } + } else { + ae.port[0].cmd_addr = io_res->start; + ae.port[0].ctl_addr = ctl_res->start; + } + + ae.port[0].altstatus_addr = ae.port[0].ctl_addr; + + pata_platform_setup_port(&ae.port[0], pdev->dev.platform_data); + + if (unlikely(ata_device_add(&ae) == 0)) { + ret = -ENODEV; + goto add_failed; + } + + return 0; + +add_failed: + if (ae.port[0].ctl_addr && mmio) + iounmap((void __iomem *)ae.port[0].ctl_addr); +bad_remap: + if (ae.port[0].cmd_addr && mmio) + iounmap((void __iomem *)ae.port[0].cmd_addr); + + return ret; +} + +/** + * pata_platform_remove - unplug a platform interface + * @pdev: platform device + * + * A platform bus ATA device has been unplugged. Perform the needed + * cleanup. Also called on module unload for any active devices. + */ +static int __devexit pata_platform_remove(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct ata_host *host = dev_get_drvdata(dev); + + ata_host_remove(host); + dev_set_drvdata(dev, NULL); + + return 0; +} + +static struct platform_driver pata_platform_driver = { + .probe = pata_platform_probe, + .remove = __devexit_p(pata_platform_remove), + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + }, +}; + +static int __init pata_platform_init(void) +{ + return platform_driver_register(&pata_platform_driver); +} + +static void __exit pata_platform_exit(void) +{ + platform_driver_unregister(&pata_platform_driver); +} +module_init(pata_platform_init); +module_exit(pata_platform_exit); + +module_param(pio_mask, int, 0); + +MODULE_AUTHOR("Paul Mundt"); +MODULE_DESCRIPTION("low-level driver for platform device ATA"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); diff --git a/drivers/ata/pata_qdi.c b/drivers/ata/pata_qdi.c index 314938d..36f621a 100644 --- a/drivers/ata/pata_qdi.c +++ b/drivers/ata/pata_qdi.c @@ -157,7 +157,6 @@ static struct scsi_host_template qdi_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c index 048c2bb..065541d 100644 --- a/drivers/ata/pata_radisys.c +++ b/drivers/ata/pata_radisys.c @@ -220,7 +220,6 @@ static struct scsi_host_template radisys_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -229,6 +228,8 @@ static struct scsi_host_template radisys_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static const struct ata_port_operations radisys_pata_ops = { @@ -311,6 +312,8 @@ static struct pci_driver radisys_pci_driver = { .id_table = radisys_pci_tbl, .probe = radisys_init_one, .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init radisys_init(void) diff --git a/drivers/ata/pata_rz1000.c b/drivers/ata/pata_rz1000.c index e4e5ea4..3677c64 100644 --- a/drivers/ata/pata_rz1000.c +++ b/drivers/ata/pata_rz1000.c @@ -21,7 +21,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_rz1000" -#define DRV_VERSION "0.2.2" +#define DRV_VERSION "0.2.3" /** @@ -83,7 +83,6 @@ static struct scsi_host_template rz1000_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -92,6 +91,8 @@ static struct scsi_host_template rz1000_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations rz1000_port_ops = { @@ -129,6 +130,19 @@ static struct ata_port_operations rz1000_port_ops = { .host_stop = ata_host_stop }; +static int rz1000_fifo_disable(struct pci_dev *pdev) +{ + u16 reg; + /* Be exceptionally paranoid as we must be sure to apply the fix */ + if (pci_read_config_word(pdev, 0x40, ®) != 0) + return -1; + reg &= 0xDFFF; + if (pci_write_config_word(pdev, 0x40, reg) != 0) + return -1; + printk(KERN_INFO DRV_NAME ": disabled chipset readahead.\n"); + return 0; +} + /** * rz1000_init_one - Register RZ1000 ATA PCI device with kernel services * @pdev: PCI device to register @@ -143,7 +157,6 @@ static int rz1000_init_one (struct pci_dev *pdev, const struct pci_device_id *en { static int printed_version; struct ata_port_info *port_info[2]; - u16 reg; static struct ata_port_info info = { .sht = &rz1000_sht, .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, @@ -154,23 +167,25 @@ static int rz1000_init_one (struct pci_dev *pdev, const struct pci_device_id *en if (!printed_version++) printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n"); - /* Be exceptionally paranoid as we must be sure to apply the fix */ - if (pci_read_config_word(pdev, 0x40, ®) != 0) - goto fail; - reg &= 0xDFFF; - if (pci_write_config_word(pdev, 0x40, reg) != 0) - goto fail; - printk(KERN_INFO DRV_NAME ": disabled chipset readahead.\n"); - - port_info[0] = &info; - port_info[1] = &info; - return ata_pci_init_one(pdev, port_info, 2); -fail: + if (rz1000_fifo_disable(pdev) == 0) { + port_info[0] = &info; + port_info[1] = &info; + return ata_pci_init_one(pdev, port_info, 2); + } printk(KERN_ERR DRV_NAME ": failed to disable read-ahead on chipset..\n"); /* Not safe to use so skip */ return -ENODEV; } +static int rz1000_reinit_one(struct pci_dev *pdev) +{ + /* If this fails on resume (which is a "cant happen" case), we + must stop as any progress risks data loss */ + if (rz1000_fifo_disable(pdev)) + panic("rz1000 fifo"); + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id pata_rz1000[] = { { PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_RZ1000), }, { PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_RZ1001), }, @@ -182,7 +197,9 @@ static struct pci_driver rz1000_pci_driver = { .name = DRV_NAME, .id_table = pata_rz1000, .probe = rz1000_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = rz1000_reinit_one, }; static int __init rz1000_init(void) diff --git a/drivers/ata/pata_sc1200.c b/drivers/ata/pata_sc1200.c index 0c75dae..a3b35bc 100644 --- a/drivers/ata/pata_sc1200.c +++ b/drivers/ata/pata_sc1200.c @@ -40,7 +40,7 @@ #include <linux/libata.h> #define DRV_NAME "sc1200" -#define DRV_VERSION "0.2.3" +#define DRV_VERSION "0.2.4" #define SC1200_REV_A 0x00 #define SC1200_REV_B1 0x01 @@ -186,7 +186,6 @@ static struct scsi_host_template sc1200_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -195,6 +194,8 @@ static struct scsi_host_template sc1200_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations sc1200_port_ops = { @@ -264,7 +265,9 @@ static struct pci_driver sc1200_pci_driver = { .name = DRV_NAME, .id_table = sc1200, .probe = sc1200_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init sc1200_init(void) diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c index be7f60e..f02b6a3 100644 --- a/drivers/ata/pata_serverworks.c +++ b/drivers/ata/pata_serverworks.c @@ -41,7 +41,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_serverworks" -#define DRV_VERSION "0.3.7" +#define DRV_VERSION "0.3.9" #define SVWKS_CSB5_REVISION_NEW 0x92 /* min PCI_REVISION_ID for UDMA5 (A2.0) */ #define SVWKS_CSB6_REVISION 0xa0 /* min PCI_REVISION_ID for UDMA4 (A1.0) */ @@ -318,7 +318,6 @@ static struct scsi_host_template serverworks_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -327,6 +326,8 @@ static struct scsi_host_template serverworks_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations serverworks_osb4_port_ops = { @@ -554,6 +555,30 @@ static int serverworks_init_one(struct pci_dev *pdev, const struct pci_device_id return ata_pci_init_one(pdev, port_info, ports); } +static int serverworks_reinit_one(struct pci_dev *pdev) +{ + /* Force master latency timer to 64 PCI clocks */ + pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x40); + + switch (pdev->device) + { + case PCI_DEVICE_ID_SERVERWORKS_OSB4IDE: + serverworks_fixup_osb4(pdev); + break; + case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE: + ata_pci_clear_simplex(pdev); + /* fall through */ + case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE: + case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2: + serverworks_fixup_csb(pdev); + break; + case PCI_DEVICE_ID_SERVERWORKS_HT1000IDE: + serverworks_fixup_ht1000(pdev); + break; + } + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id serverworks[] = { { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4IDE), 0}, { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE), 2}, @@ -568,7 +593,9 @@ static struct pci_driver serverworks_pci_driver = { .name = DRV_NAME, .id_table = serverworks, .probe = serverworks_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = serverworks_reinit_one, }; static int __init serverworks_init(void) diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c index 11942fd..32cf0bf 100644 --- a/drivers/ata/pata_sil680.c +++ b/drivers/ata/pata_sil680.c @@ -33,7 +33,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_sil680" -#define DRV_VERSION "0.3.2" +#define DRV_VERSION "0.4.1" /** * sil680_selreg - return register base @@ -218,7 +218,6 @@ static struct scsi_host_template sil680_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -263,32 +262,20 @@ static struct ata_port_operations sil680_port_ops = { .host_stop = ata_host_stop }; -static int sil680_init_one(struct pci_dev *pdev, const struct pci_device_id *id) +/** + * sil680_init_chip - chip setup + * @pdev: PCI device + * + * Perform all the chip setup which must be done both when the device + * is powered up on boot and when we resume in case we resumed from RAM. + * Returns the final clock settings. + */ + +static u8 sil680_init_chip(struct pci_dev *pdev) { - static struct ata_port_info info = { - .sht = &sil680_sht, - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, - .pio_mask = 0x1f, - .mwdma_mask = 0x07, - .udma_mask = 0x7f, - .port_ops = &sil680_port_ops - }; - static struct ata_port_info info_slow = { - .sht = &sil680_sht, - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, - .pio_mask = 0x1f, - .mwdma_mask = 0x07, - .udma_mask = 0x3f, - .port_ops = &sil680_port_ops - }; - static struct ata_port_info *port_info[2] = {&info, &info}; - static int printed_version; u32 class_rev = 0; u8 tmpbyte = 0; - if (!printed_version++) - dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); - pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev); class_rev &= 0xff; /* FIXME: double check */ @@ -323,8 +310,6 @@ static int sil680_init_one(struct pci_dev *pdev, const struct pci_device_id *id) pci_read_config_byte(pdev, 0x8A, &tmpbyte); printk(KERN_INFO "sil680: BA5_EN = %d clock = %02X\n", tmpbyte & 1, tmpbyte & 0x30); - if ((tmpbyte & 0x30) == 0) - port_info[0] = port_info[1] = &info_slow; pci_write_config_byte(pdev, 0xA1, 0x72); pci_write_config_word(pdev, 0xA2, 0x328A); @@ -343,11 +328,51 @@ static int sil680_init_one(struct pci_dev *pdev, const struct pci_device_id *id) case 0x20: printk(KERN_INFO "sil680: Using PCI clock.\n");break; /* This last case is _NOT_ ok */ case 0x30: printk(KERN_ERR "sil680: Clock disabled ?\n"); - return -EIO; + } + return tmpbyte & 0x30; +} + +static int sil680_init_one(struct pci_dev *pdev, const struct pci_device_id *id) +{ + static struct ata_port_info info = { + .sht = &sil680_sht, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + .pio_mask = 0x1f, + .mwdma_mask = 0x07, + .udma_mask = 0x7f, + .port_ops = &sil680_port_ops + }; + static struct ata_port_info info_slow = { + .sht = &sil680_sht, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + .pio_mask = 0x1f, + .mwdma_mask = 0x07, + .udma_mask = 0x3f, + .port_ops = &sil680_port_ops + }; + static struct ata_port_info *port_info[2] = {&info, &info}; + static int printed_version; + + if (!printed_version++) + dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); + + switch(sil680_init_chip(pdev)) + { + case 0: + port_info[0] = port_info[1] = &info_slow; + break; + case 0x30: + return -ENODEV; } return ata_pci_init_one(pdev, port_info, 2); } +static int sil680_reinit_one(struct pci_dev *pdev) +{ + sil680_init_chip(pdev); + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id sil680[] = { { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_680), }, @@ -358,7 +383,9 @@ static struct pci_driver sil680_pci_driver = { .name = DRV_NAME, .id_table = sil680, .probe = sil680_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = sil680_reinit_one, }; static int __init sil680_init(void) diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c index 91e85f9..916cedb 100644 --- a/drivers/ata/pata_sis.c +++ b/drivers/ata/pata_sis.c @@ -34,7 +34,7 @@ #include <linux/ata.h> #define DRV_NAME "pata_sis" -#define DRV_VERSION "0.4.4" +#define DRV_VERSION "0.4.5" struct sis_chipset { u16 device; /* PCI host ID */ @@ -538,7 +538,6 @@ static struct scsi_host_template sis_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -547,6 +546,8 @@ static struct scsi_host_template sis_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static const struct ata_port_operations sis_133_ops = { @@ -1000,6 +1001,8 @@ static struct pci_driver sis_pci_driver = { .id_table = sis_pci_tbl, .probe = sis_init_one, .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init sis_init(void) diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c index dc1cfc6..e94f515 100644 --- a/drivers/ata/pata_sl82c105.c +++ b/drivers/ata/pata_sl82c105.c @@ -230,7 +230,6 @@ static struct scsi_host_template sl82c105_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, diff --git a/drivers/ata/pata_triflex.c b/drivers/ata/pata_triflex.c index bfda1f7..a142971 100644 --- a/drivers/ata/pata_triflex.c +++ b/drivers/ata/pata_triflex.c @@ -43,7 +43,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_triflex" -#define DRV_VERSION "0.2.5" +#define DRV_VERSION "0.2.7" /** * triflex_prereset - probe begin @@ -185,7 +185,6 @@ static struct scsi_host_template triflex_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -194,6 +193,8 @@ static struct scsi_host_template triflex_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations triflex_port_ops = { @@ -258,7 +259,9 @@ static struct pci_driver triflex_pci_driver = { .name = DRV_NAME, .id_table = triflex, .probe = triflex_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, }; static int __init triflex_init(void) diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c index c5f1616..cc09d47 100644 --- a/drivers/ata/pata_via.c +++ b/drivers/ata/pata_via.c @@ -23,6 +23,7 @@ * VIA VT8233c - UDMA100 * VIA VT8235 - UDMA133 * VIA VT8237 - UDMA133 + * VIA VT8251 - UDMA133 * * Most registers remain compatible across chips. Others start reserved * and acquire sensible semantics if set to 1 (eg cable detect). A few @@ -60,7 +61,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_via" -#define DRV_VERSION "0.1.14" +#define DRV_VERSION "0.2.0" /* * The following comes directly from Vojtech Pavlik's ide/pci/via82cxxx @@ -94,6 +95,7 @@ static const struct via_isa_bridge { u8 rev_max; u16 flags; } via_isa_bridges[] = { + { "vt8251", PCI_DEVICE_ID_VIA_8251, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "cx700", PCI_DEVICE_ID_VIA_CX700, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES}, { "vt8237a", PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, @@ -288,7 +290,6 @@ static struct scsi_host_template via_sht = { .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -297,6 +298,8 @@ static struct scsi_host_template via_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations via_port_ops = { @@ -370,8 +373,42 @@ static struct ata_port_operations via_port_ops_noirq = { }; /** + * via_config_fifo - set up the FIFO + * @pdev: PCI device + * @flags: configuration flags + * + * Set the FIFO properties for this device if neccessary. Used both on + * set up and on and the resume path + */ + +static void via_config_fifo(struct pci_dev *pdev, unsigned int flags) +{ + u8 enable; + + /* 0x40 low bits indicate enabled channels */ + pci_read_config_byte(pdev, 0x40 , &enable); + enable &= 3; + + if (flags & VIA_SET_FIFO) { + u8 fifo_setting[4] = {0x00, 0x60, 0x00, 0x20}; + u8 fifo; + + pci_read_config_byte(pdev, 0x43, &fifo); + + /* Clear PREQ# until DDACK# for errata */ + if (flags & VIA_BAD_PREQ) + fifo &= 0x7F; + else + fifo &= 0x9f; + /* Turn on FIFO for enabled channels */ + fifo |= fifo_setting[enable]; + pci_write_config_byte(pdev, 0x43, fifo); + } +} + +/** * via_init_one - discovery callback - * @pdev: PCI device ID + * @pdev: PCI device * @id: PCI table info * * A VIA IDE interface has been discovered. Figure out what revision @@ -383,7 +420,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id) /* Early VIA without UDMA support */ static struct ata_port_info via_mwdma_info = { .sht = &via_sht, - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING, .pio_mask = 0x1f, .mwdma_mask = 0x07, .port_ops = &via_port_ops @@ -391,7 +428,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id) /* Ditto with IRQ masking required */ static struct ata_port_info via_mwdma_info_borked = { .sht = &via_sht, - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING, .pio_mask = 0x1f, .mwdma_mask = 0x07, .port_ops = &via_port_ops_noirq, @@ -399,7 +436,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id) /* VIA UDMA 33 devices (and borked 66) */ static struct ata_port_info via_udma33_info = { .sht = &via_sht, - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING, .pio_mask = 0x1f, .mwdma_mask = 0x07, .udma_mask = 0x7, @@ -408,7 +445,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id) /* VIA UDMA 66 devices */ static struct ata_port_info via_udma66_info = { .sht = &via_sht, - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING, .pio_mask = 0x1f, .mwdma_mask = 0x07, .udma_mask = 0x1f, @@ -417,7 +454,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id) /* VIA UDMA 100 devices */ static struct ata_port_info via_udma100_info = { .sht = &via_sht, - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING, .pio_mask = 0x1f, .mwdma_mask = 0x07, .udma_mask = 0x3f, @@ -426,7 +463,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id) /* UDMA133 with bad AST (All current 133) */ static struct ata_port_info via_udma133_info = { .sht = &via_sht, - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SETXFER_POLLING, .pio_mask = 0x1f, .mwdma_mask = 0x07, .udma_mask = 0x7f, /* FIXME: should check north bridge */ @@ -471,21 +508,8 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id) } /* Initialise the FIFO for the enabled channels. */ - if (config->flags & VIA_SET_FIFO) { - u8 fifo_setting[4] = {0x00, 0x60, 0x00, 0x20}; - u8 fifo; - - pci_read_config_byte(pdev, 0x43, &fifo); - - /* Clear PREQ# until DDACK# for errata */ - if (config->flags & VIA_BAD_PREQ) - fifo &= 0x7F; - else - fifo &= 0x9f; - /* Turn on FIFO for enabled channels */ - fifo |= fifo_setting[enable]; - pci_write_config_byte(pdev, 0x43, fifo); - } + via_config_fifo(pdev, config->flags); + /* Clock set up */ switch(config->flags & VIA_UDMA) { case VIA_UDMA_NONE: @@ -529,6 +553,39 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id) return ata_pci_init_one(pdev, port_info, 2); } +/** + * via_reinit_one - reinit after resume + * @pdev; PCI device + * + * Called when the VIA PATA device is resumed. We must then + * reconfigure the fifo and other setup we may have altered. In + * addition the kernel needs to have the resume methods on PCI + * quirk supported. + */ + +static int via_reinit_one(struct pci_dev *pdev) +{ + u32 timing; + struct ata_host *host = dev_get_drvdata(&pdev->dev); + const struct via_isa_bridge *config = host->private_data; + + via_config_fifo(pdev, config->flags); + + if ((config->flags & VIA_UDMA) == VIA_UDMA_66) { + /* The 66 MHz devices require we enable the clock */ + pci_read_config_dword(pdev, 0x50, &timing); + timing |= 0x80008; + pci_write_config_dword(pdev, 0x50, timing); + } + if (config->flags & VIA_BAD_CLK66) { + /* Disable the 66MHz clock on problem devices */ + pci_read_config_dword(pdev, 0x50, &timing); + timing &= ~0x80008; + pci_write_config_dword(pdev, 0x50, timing); + } + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id via[] = { { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C576_1), }, { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C586_1), }, @@ -542,7 +599,9 @@ static struct pci_driver via_pci_driver = { .name = DRV_NAME, .id_table = via, .probe = via_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = via_reinit_one, }; static int __init via_init(void) diff --git a/drivers/ata/pata_winbond.c b/drivers/ata/pata_winbond.c new file mode 100644 index 0000000..3ea345c --- /dev/null +++ b/drivers/ata/pata_winbond.c @@ -0,0 +1,306 @@ +/* + * pata_winbond.c - Winbond VLB ATA controllers + * (C) 2006 Red Hat <alan@redhat.com> + * + * Support for the Winbond 83759A when operating in advanced mode. + * Multichip mode is not currently supported. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/blkdev.h> +#include <linux/delay.h> +#include <scsi/scsi_host.h> +#include <linux/libata.h> +#include <linux/platform_device.h> + +#define DRV_NAME "pata_winbond" +#define DRV_VERSION "0.0.1" + +#define NR_HOST 4 /* Two winbond controllers, two channels each */ + +struct winbond_data { + unsigned long config; + struct platform_device *platform_dev; +}; + +static struct ata_host *winbond_host[NR_HOST]; +static struct winbond_data winbond_data[NR_HOST]; +static int nr_winbond_host; + +#ifdef MODULE +static int probe_winbond = 1; +#else +static int probe_winbond; +#endif + +static spinlock_t winbond_lock = SPIN_LOCK_UNLOCKED; + +static void winbond_writecfg(unsigned long port, u8 reg, u8 val) +{ + unsigned long flags; + spin_lock_irqsave(&winbond_lock, flags); + outb(reg, port + 0x01); + outb(val, port + 0x02); + spin_unlock_irqrestore(&winbond_lock, flags); +} + +static u8 winbond_readcfg(unsigned long port, u8 reg) +{ + u8 val; + + unsigned long flags; + spin_lock_irqsave(&winbond_lock, flags); + outb(reg, port + 0x01); + val = inb(port + 0x02); + spin_unlock_irqrestore(&winbond_lock, flags); + + return val; +} + +static void winbond_set_piomode(struct ata_port *ap, struct ata_device *adev) +{ + struct ata_timing t; + struct winbond_data *winbond = ap->host->private_data; + int active, recovery; + u8 reg; + int timing = 0x88 + (ap->port_no * 4) + (adev->devno * 2); + + reg = winbond_readcfg(winbond->config, 0x81); + + /* Get the timing data in cycles */ + if (reg & 0x40) /* Fast VLB bus, assume 50MHz */ + ata_timing_compute(adev, adev->pio_mode, &t, 20000, 1000); + else + ata_timing_compute(adev, adev->pio_mode, &t, 30303, 1000); + + active = (FIT(t.active, 3, 17) - 1) & 0x0F; + recovery = (FIT(t.recover, 1, 15) + 1) & 0x0F; + timing = (active << 4) | recovery; + winbond_writecfg(winbond->config, timing, reg); + + /* Load the setup timing */ + + reg = 0x35; + if (adev->class != ATA_DEV_ATA) + reg |= 0x08; /* FIFO off */ + if (!ata_pio_need_iordy(adev)) + reg |= 0x02; /* IORDY off */ + reg |= (FIT(t.setup, 0, 3) << 6); + winbond_writecfg(winbond->config, timing + 1, reg); +} + + +static void winbond_data_xfer(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data) +{ + struct ata_port *ap = adev->ap; + int slop = buflen & 3; + + if (ata_id_has_dword_io(adev->id)) { + if (write_data) + outsl(ap->ioaddr.data_addr, buf, buflen >> 2); + else + insl(ap->ioaddr.data_addr, buf, buflen >> 2); + + if (unlikely(slop)) { + u32 pad; + if (write_data) { + memcpy(&pad, buf + buflen - slop, slop); + outl(le32_to_cpu(pad), ap->ioaddr.data_addr); + } else { + pad = cpu_to_le16(inl(ap->ioaddr.data_addr)); + memcpy(buf + buflen - slop, &pad, slop); + } + } + } else + ata_pio_data_xfer(adev, buf, buflen, write_data); +} + +static struct scsi_host_template winbond_sht = { + .module = THIS_MODULE, + .name = DRV_NAME, + .ioctl = ata_scsi_ioctl, + .queuecommand = ata_scsi_queuecmd, + .can_queue = ATA_DEF_QUEUE, + .this_id = ATA_SHT_THIS_ID, + .sg_tablesize = LIBATA_MAX_PRD, + .cmd_per_lun = ATA_SHT_CMD_PER_LUN, + .emulated = ATA_SHT_EMULATED, + .use_clustering = ATA_SHT_USE_CLUSTERING, + .proc_name = DRV_NAME, + .dma_boundary = ATA_DMA_BOUNDARY, + .slave_configure = ata_scsi_slave_config, + .slave_destroy = ata_scsi_slave_destroy, + .bios_param = ata_std_bios_param, +}; + +static struct ata_port_operations winbond_port_ops = { + .port_disable = ata_port_disable, + .set_piomode = winbond_set_piomode, + + .tf_load = ata_tf_load, + .tf_read = ata_tf_read, + .check_status = ata_check_status, + .exec_command = ata_exec_command, + .dev_select = ata_std_dev_select, + + .freeze = ata_bmdma_freeze, + .thaw = ata_bmdma_thaw, + .error_handler = ata_bmdma_error_handler, + .post_internal_cmd = ata_bmdma_post_internal_cmd, + + .qc_prep = ata_qc_prep, + .qc_issue = ata_qc_issue_prot, + + .data_xfer = winbond_data_xfer, + + .irq_handler = ata_interrupt, + .irq_clear = ata_bmdma_irq_clear, + + .port_start = ata_port_start, + .port_stop = ata_port_stop, + .host_stop = ata_host_stop +}; + +/** + * winbond_init_one - attach a winbond interface + * @type: Type to display + * @io: I/O port start + * @irq: interrupt line + * @fast: True if on a > 33Mhz VLB + * + * Register a VLB bus IDE interface. Such interfaces are PIO and we + * assume do not support IRQ sharing. + */ + +static __init int winbond_init_one(unsigned long port) +{ + struct ata_probe_ent ae; + struct platform_device *pdev; + int ret; + u8 reg; + int i; + + reg = winbond_readcfg(port, 0x81); + reg |= 0x80; /* jumpered mode off */ + winbond_writecfg(port, 0x81, reg); + reg = winbond_readcfg(port, 0x83); + reg |= 0xF0; /* local control */ + winbond_writecfg(port, 0x83, reg); + reg = winbond_readcfg(port, 0x85); + reg |= 0xF0; /* programmable timing */ + winbond_writecfg(port, 0x85, reg); + + reg = winbond_readcfg(port, 0x81); + + if (!(reg & 0x03)) /* Disabled */ + return 0; + + for (i = 0; i < 2 ; i ++) { + + if (reg & (1 << i)) { + /* + * Fill in a probe structure first of all + */ + + pdev = platform_device_register_simple(DRV_NAME, nr_winbond_host, NULL, 0); + if (pdev == NULL) + return -ENOMEM; + + memset(&ae, 0, sizeof(struct ata_probe_ent)); + INIT_LIST_HEAD(&ae.node); + ae.dev = &pdev->dev; + + ae.port_ops = &winbond_port_ops; + ae.pio_mask = 0x1F; + + ae.sht = &winbond_sht; + + ae.n_ports = 1; + ae.irq = 14 + i; + ae.irq_flags = 0; + ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST; + ae.port[0].cmd_addr = 0x1F0 - (0x80 * i); + ae.port[0].altstatus_addr = ae.port[0].cmd_addr + 0x0206; + ae.port[0].ctl_addr = ae.port[0].altstatus_addr; + ata_std_ports(&ae.port[0]); + /* + * Hook in a private data structure per channel + */ + ae.private_data = &winbond_data[nr_winbond_host]; + winbond_data[nr_winbond_host].config = port; + winbond_data[nr_winbond_host].platform_dev = pdev; + + ret = ata_device_add(&ae); + if (ret == 0) { + platform_device_unregister(pdev); + return -ENODEV; + } + winbond_host[nr_winbond_host++] = dev_get_drvdata(&pdev->dev); + } + } + + return 0; +} + +/** + * winbond_init - attach winbond interfaces + * + * Attach winbond IDE interfaces by scanning the ports it may occupy. + */ + +static __init int winbond_init(void) +{ + static const unsigned long config[2] = { 0x130, 0x1B0 }; + + int ct = 0; + int i; + + if (probe_winbond == 0) + return -ENODEV; + + /* + * Check both base addresses + */ + + for (i = 0; i < 2; i++) { + if (probe_winbond & (1<<i)) { + int ret = 0; + unsigned long port = config[i]; + + if (request_region(port, 2, "pata_winbond")) { + ret = winbond_init_one(port); + if(ret <= 0) + release_region(port, 2); + else ct+= ret; + } + } + } + if (ct != 0) + return 0; + return -ENODEV; +} + +static __exit void winbond_exit(void) +{ + int i; + + for (i = 0; i < nr_winbond_host; i++) { + ata_host_remove(winbond_host[i]); + release_region(winbond_data[i].config, 2); + platform_device_unregister(winbond_data[i].platform_dev); + } +} + +MODULE_AUTHOR("Alan Cox"); +MODULE_DESCRIPTION("low-level driver for Winbond VL ATA"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +module_init(winbond_init); +module_exit(winbond_exit); + +module_param(probe_winbond, int, 0); + diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index d65ebfd..0d316eb 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -29,6 +29,11 @@ * NV-specific details such as register offsets, SATA phy location, * hotplug info, etc. * + * CK804/MCP04 controllers support an alternate programming interface + * similar to the ADMA specification (with some modifications). + * This allows the use of NCQ. Non-DMA-mapped ATA commands are still + * sent through the legacy interface. + * */ #include <linux/kernel.h> @@ -40,10 +45,13 @@ #include <linux/interrupt.h> #include <linux/device.h> #include <scsi/scsi_host.h> +#include <scsi/scsi_device.h> #include <linux/libata.h> #define DRV_NAME "sata_nv" -#define DRV_VERSION "2.0" +#define DRV_VERSION "3.2" + +#define NV_ADMA_DMA_BOUNDARY 0xffffffffUL enum { NV_PORTS = 2, @@ -78,8 +86,138 @@ enum { // For PCI config register 20 NV_MCP_SATA_CFG_20 = 0x50, NV_MCP_SATA_CFG_20_SATA_SPACE_EN = 0x04, + NV_MCP_SATA_CFG_20_PORT0_EN = (1 << 17), + NV_MCP_SATA_CFG_20_PORT1_EN = (1 << 16), + NV_MCP_SATA_CFG_20_PORT0_PWB_EN = (1 << 14), + NV_MCP_SATA_CFG_20_PORT1_PWB_EN = (1 << 12), + + NV_ADMA_MAX_CPBS = 32, + NV_ADMA_CPB_SZ = 128, + NV_ADMA_APRD_SZ = 16, + NV_ADMA_SGTBL_LEN = (1024 - NV_ADMA_CPB_SZ) / + NV_ADMA_APRD_SZ, + NV_ADMA_SGTBL_TOTAL_LEN = NV_ADMA_SGTBL_LEN + 5, + NV_ADMA_SGTBL_SZ = NV_ADMA_SGTBL_LEN * NV_ADMA_APRD_SZ, + NV_ADMA_PORT_PRIV_DMA_SZ = NV_ADMA_MAX_CPBS * + (NV_ADMA_CPB_SZ + NV_ADMA_SGTBL_SZ), + + /* BAR5 offset to ADMA general registers */ + NV_ADMA_GEN = 0x400, + NV_ADMA_GEN_CTL = 0x00, + NV_ADMA_NOTIFIER_CLEAR = 0x30, + + /* BAR5 offset to ADMA ports */ + NV_ADMA_PORT = 0x480, + + /* size of ADMA port register space */ + NV_ADMA_PORT_SIZE = 0x100, + + /* ADMA port registers */ + NV_ADMA_CTL = 0x40, + NV_ADMA_CPB_COUNT = 0x42, + NV_ADMA_NEXT_CPB_IDX = 0x43, + NV_ADMA_STAT = 0x44, + NV_ADMA_CPB_BASE_LOW = 0x48, + NV_ADMA_CPB_BASE_HIGH = 0x4C, + NV_ADMA_APPEND = 0x50, + NV_ADMA_NOTIFIER = 0x68, + NV_ADMA_NOTIFIER_ERROR = 0x6C, + + /* NV_ADMA_CTL register bits */ + NV_ADMA_CTL_HOTPLUG_IEN = (1 << 0), + NV_ADMA_CTL_CHANNEL_RESET = (1 << 5), + NV_ADMA_CTL_GO = (1 << 7), + NV_ADMA_CTL_AIEN = (1 << 8), + NV_ADMA_CTL_READ_NON_COHERENT = (1 << 11), + NV_ADMA_CTL_WRITE_NON_COHERENT = (1 << 12), + + /* CPB response flag bits */ + NV_CPB_RESP_DONE = (1 << 0), + NV_CPB_RESP_ATA_ERR = (1 << 3), + NV_CPB_RESP_CMD_ERR = (1 << 4), + NV_CPB_RESP_CPB_ERR = (1 << 7), + + /* CPB control flag bits */ + NV_CPB_CTL_CPB_VALID = (1 << 0), + NV_CPB_CTL_QUEUE = (1 << 1), + NV_CPB_CTL_APRD_VALID = (1 << 2), + NV_CPB_CTL_IEN = (1 << 3), + NV_CPB_CTL_FPDMA = (1 << 4), + + /* APRD flags */ + NV_APRD_WRITE = (1 << 1), + NV_APRD_END = (1 << 2), + NV_APRD_CONT = (1 << 3), + + /* NV_ADMA_STAT flags */ + NV_ADMA_STAT_TIMEOUT = (1 << 0), + NV_ADMA_STAT_HOTUNPLUG = (1 << 1), + NV_ADMA_STAT_HOTPLUG = (1 << 2), + NV_ADMA_STAT_CPBERR = (1 << 4), + NV_ADMA_STAT_SERROR = (1 << 5), + NV_ADMA_STAT_CMD_COMPLETE = (1 << 6), + NV_ADMA_STAT_IDLE = (1 << 8), + NV_ADMA_STAT_LEGACY = (1 << 9), + NV_ADMA_STAT_STOPPED = (1 << 10), + NV_ADMA_STAT_DONE = (1 << 12), + NV_ADMA_STAT_ERR = NV_ADMA_STAT_CPBERR | + NV_ADMA_STAT_TIMEOUT, + + /* port flags */ + NV_ADMA_PORT_REGISTER_MODE = (1 << 0), + NV_ADMA_ATAPI_SETUP_COMPLETE = (1 << 1), + +}; + +/* ADMA Physical Region Descriptor - one SG segment */ +struct nv_adma_prd { + __le64 addr; + __le32 len; + u8 flags; + u8 packet_len; + __le16 reserved; +}; + +enum nv_adma_regbits { + CMDEND = (1 << 15), /* end of command list */ + WNB = (1 << 14), /* wait-not-BSY */ + IGN = (1 << 13), /* ignore this entry */ + CS1n = (1 << (4 + 8)), /* std. PATA signals follow... */ + DA2 = (1 << (2 + 8)), + DA1 = (1 << (1 + 8)), + DA0 = (1 << (0 + 8)), +}; + +/* ADMA Command Parameter Block + The first 5 SG segments are stored inside the Command Parameter Block itself. + If there are more than 5 segments the remainder are stored in a separate + memory area indicated by next_aprd. */ +struct nv_adma_cpb { + u8 resp_flags; /* 0 */ + u8 reserved1; /* 1 */ + u8 ctl_flags; /* 2 */ + /* len is length of taskfile in 64 bit words */ + u8 len; /* 3 */ + u8 tag; /* 4 */ + u8 next_cpb_idx; /* 5 */ + __le16 reserved2; /* 6-7 */ + __le16 tf[12]; /* 8-31 */ + struct nv_adma_prd aprd[5]; /* 32-111 */ + __le64 next_aprd; /* 112-119 */ + __le64 reserved3; /* 120-127 */ +}; + + +struct nv_adma_port_priv { + struct nv_adma_cpb *cpb; + dma_addr_t cpb_dma; + struct nv_adma_prd *aprd; + dma_addr_t aprd_dma; + u8 flags; }; +#define NV_ADMA_CHECK_INTR(GCTL, PORT) ((GCTL) & ( 1 << (19 + (12 * (PORT))))) + static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); static void nv_ck804_host_stop(struct ata_host *host); static irqreturn_t nv_generic_interrupt(int irq, void *dev_instance); @@ -93,13 +231,28 @@ static void nv_nf2_thaw(struct ata_port *ap); static void nv_ck804_freeze(struct ata_port *ap); static void nv_ck804_thaw(struct ata_port *ap); static void nv_error_handler(struct ata_port *ap); +static int nv_adma_slave_config(struct scsi_device *sdev); +static int nv_adma_check_atapi_dma(struct ata_queued_cmd *qc); +static void nv_adma_qc_prep(struct ata_queued_cmd *qc); +static unsigned int nv_adma_qc_issue(struct ata_queued_cmd *qc); +static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance); +static void nv_adma_irq_clear(struct ata_port *ap); +static int nv_adma_port_start(struct ata_port *ap); +static void nv_adma_port_stop(struct ata_port *ap); +static void nv_adma_error_handler(struct ata_port *ap); +static void nv_adma_host_stop(struct ata_host *host); +static void nv_adma_bmdma_setup(struct ata_queued_cmd *qc); +static void nv_adma_bmdma_start(struct ata_queued_cmd *qc); +static void nv_adma_bmdma_stop(struct ata_queued_cmd *qc); +static u8 nv_adma_bmdma_status(struct ata_port *ap); enum nv_host_type { GENERIC, NFORCE2, NFORCE3 = NFORCE2, /* NF2 == NF3 as far as sata_nv is concerned */ - CK804 + CK804, + ADMA }; static const struct pci_device_id nv_pci_tbl[] = { @@ -160,6 +313,24 @@ static struct scsi_host_template nv_sht = { .bios_param = ata_std_bios_param, }; +static struct scsi_host_template nv_adma_sht = { + .module = THIS_MODULE, + .name = DRV_NAME, + .ioctl = ata_scsi_ioctl, + .queuecommand = ata_scsi_queuecmd, + .can_queue = NV_ADMA_MAX_CPBS, + .this_id = ATA_SHT_THIS_ID, + .sg_tablesize = NV_ADMA_SGTBL_TOTAL_LEN, + .cmd_per_lun = ATA_SHT_CMD_PER_LUN, + .emulated = ATA_SHT_EMULATED, + .use_clustering = ATA_SHT_USE_CLUSTERING, + .proc_name = DRV_NAME, + .dma_boundary = NV_ADMA_DMA_BOUNDARY, + .slave_configure = nv_adma_slave_config, + .slave_destroy = ata_scsi_slave_destroy, + .bios_param = ata_std_bios_param, +}; + static const struct ata_port_operations nv_generic_ops = { .port_disable = ata_port_disable, .tf_load = ata_tf_load, @@ -241,11 +412,40 @@ static const struct ata_port_operations nv_ck804_ops = { .host_stop = nv_ck804_host_stop, }; +static const struct ata_port_operations nv_adma_ops = { + .port_disable = ata_port_disable, + .tf_load = ata_tf_load, + .tf_read = ata_tf_read, + .check_atapi_dma = nv_adma_check_atapi_dma, + .exec_command = ata_exec_command, + .check_status = ata_check_status, + .dev_select = ata_std_dev_select, + .bmdma_setup = nv_adma_bmdma_setup, + .bmdma_start = nv_adma_bmdma_start, + .bmdma_stop = nv_adma_bmdma_stop, + .bmdma_status = nv_adma_bmdma_status, + .qc_prep = nv_adma_qc_prep, + .qc_issue = nv_adma_qc_issue, + .freeze = nv_ck804_freeze, + .thaw = nv_ck804_thaw, + .error_handler = nv_adma_error_handler, + .post_internal_cmd = nv_adma_bmdma_stop, + .data_xfer = ata_mmio_data_xfer, + .irq_handler = nv_adma_interrupt, + .irq_clear = nv_adma_irq_clear, + .scr_read = nv_scr_read, + .scr_write = nv_scr_write, + .port_start = nv_adma_port_start, + .port_stop = nv_adma_port_stop, + .host_stop = nv_adma_host_stop, +}; + static struct ata_port_info nv_port_info[] = { /* generic */ { .sht = &nv_sht, - .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, + .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | + ATA_FLAG_HRST_TO_RESUME, .pio_mask = NV_PIO_MASK, .mwdma_mask = NV_MWDMA_MASK, .udma_mask = NV_UDMA_MASK, @@ -254,7 +454,8 @@ static struct ata_port_info nv_port_info[] = { /* nforce2/3 */ { .sht = &nv_sht, - .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, + .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | + ATA_FLAG_HRST_TO_RESUME, .pio_mask = NV_PIO_MASK, .mwdma_mask = NV_MWDMA_MASK, .udma_mask = NV_UDMA_MASK, @@ -263,12 +464,23 @@ static struct ata_port_info nv_port_info[] = { /* ck804 */ { .sht = &nv_sht, - .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, + .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | + ATA_FLAG_HRST_TO_RESUME, .pio_mask = NV_PIO_MASK, .mwdma_mask = NV_MWDMA_MASK, .udma_mask = NV_UDMA_MASK, .port_ops = &nv_ck804_ops, }, + /* ADMA */ + { + .sht = &nv_adma_sht, + .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | + ATA_FLAG_MMIO | ATA_FLAG_NCQ, + .pio_mask = NV_PIO_MASK, + .mwdma_mask = NV_MWDMA_MASK, + .udma_mask = NV_UDMA_MASK, + .port_ops = &nv_adma_ops, + }, }; MODULE_AUTHOR("NVIDIA"); @@ -277,37 +489,220 @@ MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, nv_pci_tbl); MODULE_VERSION(DRV_VERSION); -static irqreturn_t nv_generic_interrupt(int irq, void *dev_instance) +static int adma_enabled = 1; + +static inline void __iomem *__nv_adma_ctl_block(void __iomem *mmio, + unsigned int port_no) { - struct ata_host *host = dev_instance; - unsigned int i; - unsigned int handled = 0; - unsigned long flags; + mmio += NV_ADMA_PORT + port_no * NV_ADMA_PORT_SIZE; + return mmio; +} - spin_lock_irqsave(&host->lock, flags); +static inline void __iomem *nv_adma_ctl_block(struct ata_port *ap) +{ + return __nv_adma_ctl_block(ap->host->mmio_base, ap->port_no); +} - for (i = 0; i < host->n_ports; i++) { - struct ata_port *ap; +static inline void __iomem *nv_adma_gen_block(struct ata_port *ap) +{ + return (ap->host->mmio_base + NV_ADMA_GEN); +} - ap = host->ports[i]; - if (ap && - !(ap->flags & ATA_FLAG_DISABLED)) { - struct ata_queued_cmd *qc; +static inline void __iomem *nv_adma_notifier_clear_block(struct ata_port *ap) +{ + return (nv_adma_gen_block(ap) + NV_ADMA_NOTIFIER_CLEAR + (4 * ap->port_no)); +} - qc = ata_qc_from_tag(ap, ap->active_tag); - if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) - handled += ata_host_intr(ap, qc); - else - // No request pending? Clear interrupt status - // anyway, in case there's one pending. - ap->ops->check_status(ap); - } +static void nv_adma_register_mode(struct ata_port *ap) +{ + void __iomem *mmio = nv_adma_ctl_block(ap); + struct nv_adma_port_priv *pp = ap->private_data; + u16 tmp; + + if (pp->flags & NV_ADMA_PORT_REGISTER_MODE) + return; + + tmp = readw(mmio + NV_ADMA_CTL); + writew(tmp & ~NV_ADMA_CTL_GO, mmio + NV_ADMA_CTL); + + pp->flags |= NV_ADMA_PORT_REGISTER_MODE; +} + +static void nv_adma_mode(struct ata_port *ap) +{ + void __iomem *mmio = nv_adma_ctl_block(ap); + struct nv_adma_port_priv *pp = ap->private_data; + u16 tmp; + if (!(pp->flags & NV_ADMA_PORT_REGISTER_MODE)) + return; + + WARN_ON(pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE); + + tmp = readw(mmio + NV_ADMA_CTL); + writew(tmp | NV_ADMA_CTL_GO, mmio + NV_ADMA_CTL); + + pp->flags &= ~NV_ADMA_PORT_REGISTER_MODE; +} + +static int nv_adma_slave_config(struct scsi_device *sdev) +{ + struct ata_port *ap = ata_shost_to_port(sdev->host); + struct nv_adma_port_priv *pp = ap->private_data; + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + u64 bounce_limit; + unsigned long segment_boundary; + unsigned short sg_tablesize; + int rc; + int adma_enable; + u32 current_reg, new_reg, config_mask; + + rc = ata_scsi_slave_config(sdev); + + if (sdev->id >= ATA_MAX_DEVICES || sdev->channel || sdev->lun) + /* Not a proper libata device, ignore */ + return rc; + + if (ap->device[sdev->id].class == ATA_DEV_ATAPI) { + /* + * NVIDIA reports that ADMA mode does not support ATAPI commands. + * Therefore ATAPI commands are sent through the legacy interface. + * However, the legacy interface only supports 32-bit DMA. + * Restrict DMA parameters as required by the legacy interface + * when an ATAPI device is connected. + */ + bounce_limit = ATA_DMA_MASK; + segment_boundary = ATA_DMA_BOUNDARY; + /* Subtract 1 since an extra entry may be needed for padding, see + libata-scsi.c */ + sg_tablesize = LIBATA_MAX_PRD - 1; + + /* Since the legacy DMA engine is in use, we need to disable ADMA + on the port. */ + adma_enable = 0; + nv_adma_register_mode(ap); + } + else { + bounce_limit = *ap->dev->dma_mask; + segment_boundary = NV_ADMA_DMA_BOUNDARY; + sg_tablesize = NV_ADMA_SGTBL_TOTAL_LEN; + adma_enable = 1; + } + + pci_read_config_dword(pdev, NV_MCP_SATA_CFG_20, ¤t_reg); + + if(ap->port_no == 1) + config_mask = NV_MCP_SATA_CFG_20_PORT1_EN | + NV_MCP_SATA_CFG_20_PORT1_PWB_EN; + else + config_mask = NV_MCP_SATA_CFG_20_PORT0_EN | + NV_MCP_SATA_CFG_20_PORT0_PWB_EN; + + if(adma_enable) { + new_reg = current_reg | config_mask; + pp->flags &= ~NV_ADMA_ATAPI_SETUP_COMPLETE; + } + else { + new_reg = current_reg & ~config_mask; + pp->flags |= NV_ADMA_ATAPI_SETUP_COMPLETE; } + + if(current_reg != new_reg) + pci_write_config_dword(pdev, NV_MCP_SATA_CFG_20, new_reg); + + blk_queue_bounce_limit(sdev->request_queue, bounce_limit); + blk_queue_segment_boundary(sdev->request_queue, segment_boundary); + blk_queue_max_hw_segments(sdev->request_queue, sg_tablesize); + ata_port_printk(ap, KERN_INFO, + "bounce limit 0x%llX, segment boundary 0x%lX, hw segs %hu\n", + (unsigned long long)bounce_limit, segment_boundary, sg_tablesize); + return rc; +} - spin_unlock_irqrestore(&host->lock, flags); +static int nv_adma_check_atapi_dma(struct ata_queued_cmd *qc) +{ + struct nv_adma_port_priv *pp = qc->ap->private_data; + return !(pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE); +} - return IRQ_RETVAL(handled); +static unsigned int nv_adma_tf_to_cpb(struct ata_taskfile *tf, __le16 *cpb) +{ + unsigned int idx = 0; + + cpb[idx++] = cpu_to_le16((ATA_REG_DEVICE << 8) | tf->device | WNB); + + if ((tf->flags & ATA_TFLAG_LBA48) == 0) { + cpb[idx++] = cpu_to_le16(IGN); + cpb[idx++] = cpu_to_le16(IGN); + cpb[idx++] = cpu_to_le16(IGN); + cpb[idx++] = cpu_to_le16(IGN); + cpb[idx++] = cpu_to_le16(IGN); + } + else { + cpb[idx++] = cpu_to_le16((ATA_REG_ERR << 8) | tf->hob_feature); + cpb[idx++] = cpu_to_le16((ATA_REG_NSECT << 8) | tf->hob_nsect); + cpb[idx++] = cpu_to_le16((ATA_REG_LBAL << 8) | tf->hob_lbal); + cpb[idx++] = cpu_to_le16((ATA_REG_LBAM << 8) | tf->hob_lbam); + cpb[idx++] = cpu_to_le16((ATA_REG_LBAH << 8) | tf->hob_lbah); + } + cpb[idx++] = cpu_to_le16((ATA_REG_ERR << 8) | tf->feature); + cpb[idx++] = cpu_to_le16((ATA_REG_NSECT << 8) | tf->nsect); + cpb[idx++] = cpu_to_le16((ATA_REG_LBAL << 8) | tf->lbal); + cpb[idx++] = cpu_to_le16((ATA_REG_LBAM << 8) | tf->lbam); + cpb[idx++] = cpu_to_le16((ATA_REG_LBAH << 8) | tf->lbah); + + cpb[idx++] = cpu_to_le16((ATA_REG_CMD << 8) | tf->command | CMDEND); + + return idx; +} + +static void nv_adma_check_cpb(struct ata_port *ap, int cpb_num, int force_err) +{ + struct nv_adma_port_priv *pp = ap->private_data; + int complete = 0, have_err = 0; + u8 flags = pp->cpb[cpb_num].resp_flags; + + VPRINTK("CPB %d, flags=0x%x\n", cpb_num, flags); + + if (flags & NV_CPB_RESP_DONE) { + VPRINTK("CPB flags done, flags=0x%x\n", flags); + complete = 1; + } + if (flags & NV_CPB_RESP_ATA_ERR) { + ata_port_printk(ap, KERN_ERR, "CPB flags ATA err, flags=0x%x\n", flags); + have_err = 1; + complete = 1; + } + if (flags & NV_CPB_RESP_CMD_ERR) { + ata_port_printk(ap, KERN_ERR, "CPB flags CMD err, flags=0x%x\n", flags); + have_err = 1; + complete = 1; + } + if (flags & NV_CPB_RESP_CPB_ERR) { + ata_port_printk(ap, KERN_ERR, "CPB flags CPB err, flags=0x%x\n", flags); + have_err = 1; + complete = 1; + } + if(complete || force_err) + { + struct ata_queued_cmd *qc = ata_qc_from_tag(ap, cpb_num); + if(likely(qc)) { + u8 ata_status = 0; + /* Only use the ATA port status for non-NCQ commands. + For NCQ commands the current status may have nothing to do with + the command just completed. */ + if(qc->tf.protocol != ATA_PROT_NCQ) + ata_status = readb(nv_adma_ctl_block(ap) + (ATA_REG_STATUS * 4)); + + if(have_err || force_err) + ata_status |= ATA_ERR; + + qc->err_mask |= ac_err_mask(ata_status); + DPRINTK("Completing qc from tag %d with err_mask %u\n",cpb_num, + qc->err_mask); + ata_qc_complete(qc); + } + } } static int nv_host_intr(struct ata_port *ap, u8 irq_stat) @@ -341,6 +736,486 @@ static int nv_host_intr(struct ata_port *ap, u8 irq_stat) return 1; } +static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance) +{ + struct ata_host *host = dev_instance; + int i, handled = 0; + u32 notifier_clears[2]; + + spin_lock(&host->lock); + + for (i = 0; i < host->n_ports; i++) { + struct ata_port *ap = host->ports[i]; + notifier_clears[i] = 0; + + if (ap && !(ap->flags & ATA_FLAG_DISABLED)) { + struct nv_adma_port_priv *pp = ap->private_data; + void __iomem *mmio = nv_adma_ctl_block(ap); + u16 status; + u32 gen_ctl; + int have_global_err = 0; + u32 notifier, notifier_error; + + /* if in ATA register mode, use standard ata interrupt handler */ + if (pp->flags & NV_ADMA_PORT_REGISTER_MODE) { + u8 irq_stat = readb(host->mmio_base + NV_INT_STATUS_CK804) + >> (NV_INT_PORT_SHIFT * i); + handled += nv_host_intr(ap, irq_stat); + continue; + } + + notifier = readl(mmio + NV_ADMA_NOTIFIER); + notifier_error = readl(mmio + NV_ADMA_NOTIFIER_ERROR); + notifier_clears[i] = notifier | notifier_error; + + gen_ctl = readl(nv_adma_gen_block(ap) + NV_ADMA_GEN_CTL); + + if( !NV_ADMA_CHECK_INTR(gen_ctl, ap->port_no) && !notifier && + !notifier_error) + /* Nothing to do */ + continue; + + status = readw(mmio + NV_ADMA_STAT); + + /* Clear status. Ensure the controller sees the clearing before we start + looking at any of the CPB statuses, so that any CPB completions after + this point in the handler will raise another interrupt. */ + writew(status, mmio + NV_ADMA_STAT); + readw(mmio + NV_ADMA_STAT); /* flush posted write */ + rmb(); + + /* freeze if hotplugged */ + if (unlikely(status & (NV_ADMA_STAT_HOTPLUG | NV_ADMA_STAT_HOTUNPLUG))) { + ata_port_printk(ap, KERN_NOTICE, "Hotplug event, freezing\n"); + ata_port_freeze(ap); + handled++; + continue; + } + + if (status & NV_ADMA_STAT_TIMEOUT) { + ata_port_printk(ap, KERN_ERR, "timeout, stat=0x%x\n", status); + have_global_err = 1; + } + if (status & NV_ADMA_STAT_CPBERR) { + ata_port_printk(ap, KERN_ERR, "CPB error, stat=0x%x\n", status); + have_global_err = 1; + } + if ((status & NV_ADMA_STAT_DONE) || have_global_err) { + /** Check CPBs for completed commands */ + + if(ata_tag_valid(ap->active_tag)) + /* Non-NCQ command */ + nv_adma_check_cpb(ap, ap->active_tag, have_global_err || + (notifier_error & (1 << ap->active_tag))); + else { + int pos; + u32 active = ap->sactive; + while( (pos = ffs(active)) ) { + pos--; + nv_adma_check_cpb(ap, pos, have_global_err || + (notifier_error & (1 << pos)) ); + active &= ~(1 << pos ); + } + } + } + + handled++; /* irq handled if we got here */ + } + } + + if(notifier_clears[0] || notifier_clears[1]) { + /* Note: Both notifier clear registers must be written + if either is set, even if one is zero, according to NVIDIA. */ + writel(notifier_clears[0], + nv_adma_notifier_clear_block(host->ports[0])); + writel(notifier_clears[1], + nv_adma_notifier_clear_block(host->ports[1])); + } + + spin_unlock(&host->lock); + + return IRQ_RETVAL(handled); +} + +static void nv_adma_irq_clear(struct ata_port *ap) +{ + void __iomem *mmio = nv_adma_ctl_block(ap); + u16 status = readw(mmio + NV_ADMA_STAT); + u32 notifier = readl(mmio + NV_ADMA_NOTIFIER); + u32 notifier_error = readl(mmio + NV_ADMA_NOTIFIER_ERROR); + unsigned long dma_stat_addr = ap->ioaddr.bmdma_addr + ATA_DMA_STATUS; + + /* clear ADMA status */ + writew(status, mmio + NV_ADMA_STAT); + writel(notifier | notifier_error, + nv_adma_notifier_clear_block(ap)); + + /** clear legacy status */ + outb(inb(dma_stat_addr), dma_stat_addr); +} + +static void nv_adma_bmdma_setup(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + unsigned int rw = (qc->tf.flags & ATA_TFLAG_WRITE); + struct nv_adma_port_priv *pp = ap->private_data; + u8 dmactl; + + if(!(pp->flags & NV_ADMA_PORT_REGISTER_MODE)) { + WARN_ON(1); + return; + } + + /* load PRD table addr. */ + outl(ap->prd_dma, ap->ioaddr.bmdma_addr + ATA_DMA_TABLE_OFS); + + /* specify data direction, triple-check start bit is clear */ + dmactl = inb(ap->ioaddr.bmdma_addr + ATA_DMA_CMD); + dmactl &= ~(ATA_DMA_WR | ATA_DMA_START); + if (!rw) + dmactl |= ATA_DMA_WR; + + outb(dmactl, ap->ioaddr.bmdma_addr + ATA_DMA_CMD); + + /* issue r/w command */ + ata_exec_command(ap, &qc->tf); +} + +static void nv_adma_bmdma_start(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + struct nv_adma_port_priv *pp = ap->private_data; + u8 dmactl; + + if(!(pp->flags & NV_ADMA_PORT_REGISTER_MODE)) { + WARN_ON(1); + return; + } + + /* start host DMA transaction */ + dmactl = inb(ap->ioaddr.bmdma_addr + ATA_DMA_CMD); + outb(dmactl | ATA_DMA_START, + ap->ioaddr.bmdma_addr + ATA_DMA_CMD); +} + +static void nv_adma_bmdma_stop(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + struct nv_adma_port_priv *pp = ap->private_data; + + if(!(pp->flags & NV_ADMA_PORT_REGISTER_MODE)) + return; + + /* clear start/stop bit */ + outb(inb(ap->ioaddr.bmdma_addr + ATA_DMA_CMD) & ~ATA_DMA_START, + ap->ioaddr.bmdma_addr + ATA_DMA_CMD); + + /* one-PIO-cycle guaranteed wait, per spec, for HDMA1:0 transition */ + ata_altstatus(ap); /* dummy read */ +} + +static u8 nv_adma_bmdma_status(struct ata_port *ap) +{ + struct nv_adma_port_priv *pp = ap->private_data; + + WARN_ON(!(pp->flags & NV_ADMA_PORT_REGISTER_MODE)); + + return inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS); +} + +static int nv_adma_port_start(struct ata_port *ap) +{ + struct device *dev = ap->host->dev; + struct nv_adma_port_priv *pp; + int rc; + void *mem; + dma_addr_t mem_dma; + void __iomem *mmio = nv_adma_ctl_block(ap); + u16 tmp; + + VPRINTK("ENTER\n"); + + rc = ata_port_start(ap); + if (rc) + return rc; + + pp = kzalloc(sizeof(*pp), GFP_KERNEL); + if (!pp) { + rc = -ENOMEM; + goto err_out; + } + + mem = dma_alloc_coherent(dev, NV_ADMA_PORT_PRIV_DMA_SZ, + &mem_dma, GFP_KERNEL); + + if (!mem) { + rc = -ENOMEM; + goto err_out_kfree; + } + memset(mem, 0, NV_ADMA_PORT_PRIV_DMA_SZ); + + /* + * First item in chunk of DMA memory: + * 128-byte command parameter block (CPB) + * one for each command tag + */ + pp->cpb = mem; + pp->cpb_dma = mem_dma; + + writel(mem_dma & 0xFFFFFFFF, mmio + NV_ADMA_CPB_BASE_LOW); + writel((mem_dma >> 16 ) >> 16, mmio + NV_ADMA_CPB_BASE_HIGH); + + mem += NV_ADMA_MAX_CPBS * NV_ADMA_CPB_SZ; + mem_dma += NV_ADMA_MAX_CPBS * NV_ADMA_CPB_SZ; + + /* + * Second item: block of ADMA_SGTBL_LEN s/g entries + */ + pp->aprd = mem; + pp->aprd_dma = mem_dma; + + ap->private_data = pp; + + /* clear any outstanding interrupt conditions */ + writew(0xffff, mmio + NV_ADMA_STAT); + + /* initialize port variables */ + pp->flags = NV_ADMA_PORT_REGISTER_MODE; + + /* clear CPB fetch count */ + writew(0, mmio + NV_ADMA_CPB_COUNT); + + /* clear GO for register mode */ + tmp = readw(mmio + NV_ADMA_CTL); + writew(tmp & ~NV_ADMA_CTL_GO, mmio + NV_ADMA_CTL); + + tmp = readw(mmio + NV_ADMA_CTL); + writew(tmp | NV_ADMA_CTL_CHANNEL_RESET, mmio + NV_ADMA_CTL); + readl( mmio + NV_ADMA_CTL ); /* flush posted write */ + udelay(1); + writew(tmp & ~NV_ADMA_CTL_CHANNEL_RESET, mmio + NV_ADMA_CTL); + readl( mmio + NV_ADMA_CTL ); /* flush posted write */ + + return 0; + +err_out_kfree: + kfree(pp); +err_out: + ata_port_stop(ap); + return rc; +} + +static void nv_adma_port_stop(struct ata_port *ap) +{ + struct device *dev = ap->host->dev; + struct nv_adma_port_priv *pp = ap->private_data; + void __iomem *mmio = nv_adma_ctl_block(ap); + + VPRINTK("ENTER\n"); + + writew(0, mmio + NV_ADMA_CTL); + + ap->private_data = NULL; + dma_free_coherent(dev, NV_ADMA_PORT_PRIV_DMA_SZ, pp->cpb, pp->cpb_dma); + kfree(pp); + ata_port_stop(ap); +} + + +static void nv_adma_setup_port(struct ata_probe_ent *probe_ent, unsigned int port) +{ + void __iomem *mmio = probe_ent->mmio_base; + struct ata_ioports *ioport = &probe_ent->port[port]; + + VPRINTK("ENTER\n"); + + mmio += NV_ADMA_PORT + port * NV_ADMA_PORT_SIZE; + + ioport->cmd_addr = (unsigned long) mmio; + ioport->data_addr = (unsigned long) mmio + (ATA_REG_DATA * 4); + ioport->error_addr = + ioport->feature_addr = (unsigned long) mmio + (ATA_REG_ERR * 4); + ioport->nsect_addr = (unsigned long) mmio + (ATA_REG_NSECT * 4); + ioport->lbal_addr = (unsigned long) mmio + (ATA_REG_LBAL * 4); + ioport->lbam_addr = (unsigned long) mmio + (ATA_REG_LBAM * 4); + ioport->lbah_addr = (unsigned long) mmio + (ATA_REG_LBAH * 4); + ioport->device_addr = (unsigned long) mmio + (ATA_REG_DEVICE * 4); + ioport->status_addr = + ioport->command_addr = (unsigned long) mmio + (ATA_REG_STATUS * 4); + ioport->altstatus_addr = + ioport->ctl_addr = (unsigned long) mmio + 0x20; +} + +static int nv_adma_host_init(struct ata_probe_ent *probe_ent) +{ + struct pci_dev *pdev = to_pci_dev(probe_ent->dev); + unsigned int i; + u32 tmp32; + + VPRINTK("ENTER\n"); + + /* enable ADMA on the ports */ + pci_read_config_dword(pdev, NV_MCP_SATA_CFG_20, &tmp32); + tmp32 |= NV_MCP_SATA_CFG_20_PORT0_EN | + NV_MCP_SATA_CFG_20_PORT0_PWB_EN | + NV_MCP_SATA_CFG_20_PORT1_EN | + NV_MCP_SATA_CFG_20_PORT1_PWB_EN; + + pci_write_config_dword(pdev, NV_MCP_SATA_CFG_20, tmp32); + + for (i = 0; i < probe_ent->n_ports; i++) + nv_adma_setup_port(probe_ent, i); + + for (i = 0; i < probe_ent->n_ports; i++) { + void __iomem *mmio = __nv_adma_ctl_block(probe_ent->mmio_base, i); + u16 tmp; + + /* enable interrupt, clear reset if not already clear */ + tmp = readw(mmio + NV_ADMA_CTL); + writew(tmp | NV_ADMA_CTL_AIEN, mmio + NV_ADMA_CTL); + } + + return 0; +} + +static void nv_adma_fill_aprd(struct ata_queued_cmd *qc, + struct scatterlist *sg, + int idx, + struct nv_adma_prd *aprd) +{ + u8 flags; + + memset(aprd, 0, sizeof(struct nv_adma_prd)); + + flags = 0; + if (qc->tf.flags & ATA_TFLAG_WRITE) + flags |= NV_APRD_WRITE; + if (idx == qc->n_elem - 1) + flags |= NV_APRD_END; + else if (idx != 4) + flags |= NV_APRD_CONT; + + aprd->addr = cpu_to_le64(((u64)sg_dma_address(sg))); + aprd->len = cpu_to_le32(((u32)sg_dma_len(sg))); /* len in bytes */ + aprd->flags = flags; +} + +static void nv_adma_fill_sg(struct ata_queued_cmd *qc, struct nv_adma_cpb *cpb) +{ + struct nv_adma_port_priv *pp = qc->ap->private_data; + unsigned int idx; + struct nv_adma_prd *aprd; + struct scatterlist *sg; + + VPRINTK("ENTER\n"); + + idx = 0; + + ata_for_each_sg(sg, qc) { + aprd = (idx < 5) ? &cpb->aprd[idx] : &pp->aprd[NV_ADMA_SGTBL_LEN * qc->tag + (idx-5)]; + nv_adma_fill_aprd(qc, sg, idx, aprd); + idx++; + } + if (idx > 5) + cpb->next_aprd = cpu_to_le64(((u64)(pp->aprd_dma + NV_ADMA_SGTBL_SZ * qc->tag))); +} + +static void nv_adma_qc_prep(struct ata_queued_cmd *qc) +{ + struct nv_adma_port_priv *pp = qc->ap->private_data; + struct nv_adma_cpb *cpb = &pp->cpb[qc->tag]; + u8 ctl_flags = NV_CPB_CTL_CPB_VALID | + NV_CPB_CTL_APRD_VALID | + NV_CPB_CTL_IEN; + + VPRINTK("qc->flags = 0x%lx\n", qc->flags); + + if (!(qc->flags & ATA_QCFLAG_DMAMAP) || + (pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE)) { + nv_adma_register_mode(qc->ap); + ata_qc_prep(qc); + return; + } + + memset(cpb, 0, sizeof(struct nv_adma_cpb)); + + cpb->len = 3; + cpb->tag = qc->tag; + cpb->next_cpb_idx = 0; + + /* turn on NCQ flags for NCQ commands */ + if (qc->tf.protocol == ATA_PROT_NCQ) + ctl_flags |= NV_CPB_CTL_QUEUE | NV_CPB_CTL_FPDMA; + + nv_adma_tf_to_cpb(&qc->tf, cpb->tf); + + nv_adma_fill_sg(qc, cpb); + + /* Be paranoid and don't let the device see NV_CPB_CTL_CPB_VALID until we are + finished filling in all of the contents */ + wmb(); + cpb->ctl_flags = ctl_flags; +} + +static unsigned int nv_adma_qc_issue(struct ata_queued_cmd *qc) +{ + struct nv_adma_port_priv *pp = qc->ap->private_data; + void __iomem *mmio = nv_adma_ctl_block(qc->ap); + + VPRINTK("ENTER\n"); + + if (!(qc->flags & ATA_QCFLAG_DMAMAP) || + (pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE)) { + /* use ATA register mode */ + VPRINTK("no dmamap or ATAPI, using ATA register mode: 0x%lx\n", qc->flags); + nv_adma_register_mode(qc->ap); + return ata_qc_issue_prot(qc); + } else + nv_adma_mode(qc->ap); + + /* write append register, command tag in lower 8 bits + and (number of cpbs to append -1) in top 8 bits */ + wmb(); + writew(qc->tag, mmio + NV_ADMA_APPEND); + + DPRINTK("Issued tag %u\n",qc->tag); + + return 0; +} + +static irqreturn_t nv_generic_interrupt(int irq, void *dev_instance) +{ + struct ata_host *host = dev_instance; + unsigned int i; + unsigned int handled = 0; + unsigned long flags; + + spin_lock_irqsave(&host->lock, flags); + + for (i = 0; i < host->n_ports; i++) { + struct ata_port *ap; + + ap = host->ports[i]; + if (ap && + !(ap->flags & ATA_FLAG_DISABLED)) { + struct ata_queued_cmd *qc; + + qc = ata_qc_from_tag(ap, ap->active_tag); + if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) + handled += ata_host_intr(ap, qc); + else + // No request pending? Clear interrupt status + // anyway, in case there's one pending. + ap->ops->check_status(ap); + } + + } + + spin_unlock_irqrestore(&host->lock, flags); + + return IRQ_RETVAL(handled); +} + static irqreturn_t nv_do_interrupt(struct ata_host *host, u8 irq_stat) { int i, handled = 0; @@ -466,6 +1341,56 @@ static void nv_error_handler(struct ata_port *ap) nv_hardreset, ata_std_postreset); } +static void nv_adma_error_handler(struct ata_port *ap) +{ + struct nv_adma_port_priv *pp = ap->private_data; + if(!(pp->flags & NV_ADMA_PORT_REGISTER_MODE)) { + void __iomem *mmio = nv_adma_ctl_block(ap); + int i; + u16 tmp; + + u32 notifier = readl(mmio + NV_ADMA_NOTIFIER); + u32 notifier_error = readl(mmio + NV_ADMA_NOTIFIER_ERROR); + u32 gen_ctl = readl(nv_adma_gen_block(ap) + NV_ADMA_GEN_CTL); + u32 status = readw(mmio + NV_ADMA_STAT); + + ata_port_printk(ap, KERN_ERR, "EH in ADMA mode, notifier 0x%X " + "notifier_error 0x%X gen_ctl 0x%X status 0x%X\n", + notifier, notifier_error, gen_ctl, status); + + for( i=0;i<NV_ADMA_MAX_CPBS;i++) { + struct nv_adma_cpb *cpb = &pp->cpb[i]; + if( cpb->ctl_flags || cpb->resp_flags ) + ata_port_printk(ap, KERN_ERR, + "CPB %d: ctl_flags 0x%x, resp_flags 0x%x\n", + i, cpb->ctl_flags, cpb->resp_flags); + } + + /* Push us back into port register mode for error handling. */ + nv_adma_register_mode(ap); + + ata_port_printk(ap, KERN_ERR, "Resetting port\n"); + + /* Mark all of the CPBs as invalid to prevent them from being executed */ + for( i=0;i<NV_ADMA_MAX_CPBS;i++) + pp->cpb[i].ctl_flags &= ~NV_CPB_CTL_CPB_VALID; + + /* clear CPB fetch count */ + writew(0, mmio + NV_ADMA_CPB_COUNT); + + /* Reset channel */ + tmp = readw(mmio + NV_ADMA_CTL); + writew(tmp | NV_ADMA_CTL_CHANNEL_RESET, mmio + NV_ADMA_CTL); + readl( mmio + NV_ADMA_CTL ); /* flush posted write */ + udelay(1); + writew(tmp & ~NV_ADMA_CTL_CHANNEL_RESET, mmio + NV_ADMA_CTL); + readl( mmio + NV_ADMA_CTL ); /* flush posted write */ + } + + ata_bmdma_drive_eh(ap, ata_std_prereset, ata_std_softreset, + nv_hardreset, ata_std_postreset); +} + static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) { static int printed_version = 0; @@ -475,6 +1400,8 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) int rc; u32 bar; unsigned long base; + unsigned long type = ent->driver_data; + int mask_set = 0; // Make sure this is a SATA controller by counting the number of bars // (NVIDIA SATA controllers will always have six bars). Otherwise, @@ -483,7 +1410,7 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) if (pci_resource_start(pdev, bar) == 0) return -ENODEV; - if (!printed_version++) + if ( !printed_version++) dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); rc = pci_enable_device(pdev); @@ -496,16 +1423,26 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) goto err_out_disable; } - rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); - if (rc) - goto err_out_regions; - rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); - if (rc) - goto err_out_regions; + if(type >= CK804 && adma_enabled) { + dev_printk(KERN_NOTICE, &pdev->dev, "Using ADMA mode\n"); + type = ADMA; + if(!pci_set_dma_mask(pdev, DMA_64BIT_MASK) && + !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) + mask_set = 1; + } + + if(!mask_set) { + rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); + if (rc) + goto err_out_regions; + rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); + if (rc) + goto err_out_regions; + } rc = -ENOMEM; - ppi[0] = ppi[1] = &nv_port_info[ent->driver_data]; + ppi[0] = ppi[1] = &nv_port_info[type]; probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); if (!probe_ent) goto err_out_regions; @@ -522,7 +1459,7 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) probe_ent->port[1].scr_addr = base + NV_PORT1_SCR_REG_OFFSET; /* enable SATA space for CK804 */ - if (ent->driver_data == CK804) { + if (type >= CK804) { u8 regval; pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, ®val); @@ -532,6 +1469,12 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_master(pdev); + if (type == ADMA) { + rc = nv_adma_host_init(probe_ent); + if (rc) + goto err_out_iounmap; + } + rc = ata_device_add(probe_ent); if (rc != NV_PORTS) goto err_out_iounmap; @@ -566,6 +1509,33 @@ static void nv_ck804_host_stop(struct ata_host *host) ata_pci_host_stop(host); } +static void nv_adma_host_stop(struct ata_host *host) +{ + struct pci_dev *pdev = to_pci_dev(host->dev); + int i; + u32 tmp32; + + for (i = 0; i < host->n_ports; i++) { + void __iomem *mmio = __nv_adma_ctl_block(host->mmio_base, i); + u16 tmp; + + /* disable interrupt */ + tmp = readw(mmio + NV_ADMA_CTL); + writew(tmp & ~NV_ADMA_CTL_AIEN, mmio + NV_ADMA_CTL); + } + + /* disable ADMA on the ports */ + pci_read_config_dword(pdev, NV_MCP_SATA_CFG_20, &tmp32); + tmp32 &= ~(NV_MCP_SATA_CFG_20_PORT0_EN | + NV_MCP_SATA_CFG_20_PORT0_PWB_EN | + NV_MCP_SATA_CFG_20_PORT1_EN | + NV_MCP_SATA_CFG_20_PORT1_PWB_EN); + + pci_write_config_dword(pdev, NV_MCP_SATA_CFG_20, tmp32); + + nv_ck804_host_stop(host); +} + static int __init nv_init(void) { return pci_register_driver(&nv_pci_driver); @@ -578,3 +1548,5 @@ static void __exit nv_exit(void) module_init(nv_init); module_exit(nv_exit); +module_param_named(adma, adma_enabled, bool, 0444); +MODULE_PARM_DESC(adma, "Enable use of ADMA (Default: true)"); diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c index 72eda51..a2778cf 100644 --- a/drivers/ata/sata_promise.c +++ b/drivers/ata/sata_promise.c @@ -46,20 +46,19 @@ #include "sata_promise.h" #define DRV_NAME "sata_promise" -#define DRV_VERSION "1.04" +#define DRV_VERSION "1.05" enum { PDC_PKT_SUBMIT = 0x40, /* Command packet pointer addr */ PDC_INT_SEQMASK = 0x40, /* Mask of asserted SEQ INTs */ - PDC_TBG_MODE = 0x41, /* TBG mode */ PDC_FLASH_CTL = 0x44, /* Flash control register */ - PDC_PCI_CTL = 0x48, /* PCI control and status register */ PDC_GLOBAL_CTL = 0x48, /* Global control/status (per port) */ PDC_CTLSTAT = 0x60, /* IDE control and status (per port) */ PDC_SATA_PLUG_CSR = 0x6C, /* SATA Plug control/status reg */ PDC2_SATA_PLUG_CSR = 0x60, /* SATAII Plug control/status reg */ - PDC_SLEW_CTL = 0x470, /* slew rate control reg */ + PDC_TBG_MODE = 0x41C, /* TBG mode (not SATAII) */ + PDC_SLEW_CTL = 0x470, /* slew rate control reg (not SATAII) */ PDC_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) | (1<<8) | (1<<9) | (1<<10), @@ -78,6 +77,9 @@ enum { PDC_COMMON_FLAGS = ATA_FLAG_NO_LEGACY | ATA_FLAG_SRST | ATA_FLAG_MMIO | ATA_FLAG_NO_ATAPI | ATA_FLAG_PIO_POLLING, + + /* hp->flags bits */ + PDC_FLAG_GEN_II = (1 << 0), }; @@ -87,6 +89,7 @@ struct pdc_port_priv { }; struct pdc_host_priv { + unsigned long flags; int hotplug_offset; }; @@ -235,20 +238,20 @@ static const struct ata_port_info pdc_port_info[] = { static const struct pci_device_id pdc_ata_pci_tbl[] = { { PCI_VDEVICE(PROMISE, 0x3371), board_2037x }, - { PCI_VDEVICE(PROMISE, 0x3570), board_2037x }, - { PCI_VDEVICE(PROMISE, 0x3571), board_2037x }, { PCI_VDEVICE(PROMISE, 0x3373), board_2037x }, { PCI_VDEVICE(PROMISE, 0x3375), board_2037x }, { PCI_VDEVICE(PROMISE, 0x3376), board_2037x }, + { PCI_VDEVICE(PROMISE, 0x3570), board_2057x }, + { PCI_VDEVICE(PROMISE, 0x3571), board_2057x }, { PCI_VDEVICE(PROMISE, 0x3574), board_2057x }, + { PCI_VDEVICE(PROMISE, 0x3d73), board_2057x }, { PCI_VDEVICE(PROMISE, 0x3d75), board_2057x }, - { PCI_VDEVICE(PROMISE, 0x3d73), board_2037x }, { PCI_VDEVICE(PROMISE, 0x3318), board_20319 }, { PCI_VDEVICE(PROMISE, 0x3319), board_20319 }, { PCI_VDEVICE(PROMISE, 0x3515), board_20319 }, { PCI_VDEVICE(PROMISE, 0x3519), board_20319 }, - { PCI_VDEVICE(PROMISE, 0x3d17), board_20319 }, + { PCI_VDEVICE(PROMISE, 0x3d17), board_40518 }, { PCI_VDEVICE(PROMISE, 0x3d18), board_40518 }, { PCI_VDEVICE(PROMISE, 0x6629), board_20619 }, @@ -277,6 +280,7 @@ static struct pci_driver pdc_ata_pci_driver = { static int pdc_port_start(struct ata_port *ap) { struct device *dev = ap->host->dev; + struct pdc_host_priv *hp = ap->host->private_data; struct pdc_port_priv *pp; int rc; @@ -298,6 +302,16 @@ static int pdc_port_start(struct ata_port *ap) ap->private_data = pp; + /* fix up PHYMODE4 align timing */ + if ((hp->flags & PDC_FLAG_GEN_II) && sata_scr_valid(ap)) { + void __iomem *mmio = (void __iomem *) ap->ioaddr.scr_addr; + unsigned int tmp; + + tmp = readl(mmio + 0x014); + tmp = (tmp & ~3) | 1; /* set bits 1:0 = 0:1 */ + writel(tmp, mmio + 0x014); + } + return 0; err_out_kfree: @@ -640,9 +654,11 @@ static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe) * "TODO: figure out why we do this" */ - /* change FIFO_SHD to 8 dwords, enable BMR_BURST */ + /* enable BMR_BURST, maybe change FIFO_SHD to 8 dwords */ tmp = readl(mmio + PDC_FLASH_CTL); - tmp |= 0x12000; /* bit 16 (fifo 8 dw) and 13 (bmr burst?) */ + tmp |= 0x02000; /* bit 13 (enable bmr burst) */ + if (!(hp->flags & PDC_FLAG_GEN_II)) + tmp |= 0x10000; /* bit 16 (fifo threshold at 8 dw) */ writel(tmp, mmio + PDC_FLASH_CTL); /* clear plug/unplug flags for all ports */ @@ -653,6 +669,10 @@ static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe) tmp = readl(mmio + hotplug_offset); writel(tmp | 0xff0000, mmio + hotplug_offset); + /* don't initialise TBG or SLEW on 2nd generation chips */ + if (hp->flags & PDC_FLAG_GEN_II) + return; + /* reduce TBG clock to 133 Mhz. */ tmp = readl(mmio + PDC_TBG_MODE); tmp &= ~0x30000; /* clear bit 17, 16*/ @@ -746,6 +766,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e /* notice 4-port boards */ switch (board_idx) { case board_40518: + hp->flags |= PDC_FLAG_GEN_II; /* Override hotplug offset for SATAII150 */ hp->hotplug_offset = PDC2_SATA_PLUG_CSR; /* Fall through */ @@ -759,15 +780,14 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e probe_ent->port[3].scr_addr = base + 0x700; break; case board_2057x: + case board_20771: + hp->flags |= PDC_FLAG_GEN_II; /* Override hotplug offset for SATAII150 */ hp->hotplug_offset = PDC2_SATA_PLUG_CSR; /* Fall through */ case board_2037x: probe_ent->n_ports = 2; break; - case board_20771: - probe_ent->n_ports = 2; - break; case board_20619: probe_ent->n_ports = 4; diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c index ca8d993..7808d03 100644 --- a/drivers/ata/sata_sil.c +++ b/drivers/ata/sata_sil.c @@ -356,6 +356,7 @@ static void sil_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) static void sil_host_intr(struct ata_port *ap, u32 bmdma2) { + struct ata_eh_info *ehi = &ap->eh_info; struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag); u8 status; @@ -428,6 +429,10 @@ static void sil_host_intr(struct ata_port *ap, u32 bmdma2) /* kick HSM in the ass */ ata_hsm_move(ap, qc, status, 0); + if (unlikely(qc->err_mask) && (qc->tf.protocol == ATA_PROT_DMA || + qc->tf.protocol == ATA_PROT_ATAPI_DMA)) + ata_ehi_push_desc(ehi, "BMDMA2 stat 0x%x", bmdma2); + return; err_hsm: @@ -534,6 +539,7 @@ static void sil_thaw(struct ata_port *ap) */ static void sil_dev_config(struct ata_port *ap, struct ata_device *dev) { + int print_info = ap->eh_context.i.flags & ATA_EHI_PRINTINFO; unsigned int n, quirks = 0; unsigned char model_num[41]; @@ -549,16 +555,18 @@ static void sil_dev_config(struct ata_port *ap, struct ata_device *dev) if (slow_down || ((ap->flags & SIL_FLAG_MOD15WRITE) && (quirks & SIL_QUIRK_MOD15WRITE))) { - ata_dev_printk(dev, KERN_INFO, "applying Seagate errata fix " - "(mod15write workaround)\n"); + if (print_info) + ata_dev_printk(dev, KERN_INFO, "applying Seagate " + "errata fix (mod15write workaround)\n"); dev->max_sectors = 15; return; } /* limit to udma5 */ if (quirks & SIL_QUIRK_UDMA5MAX) { - ata_dev_printk(dev, KERN_INFO, - "applying Maxtor errata fix %s\n", model_num); + if (print_info) + ata_dev_printk(dev, KERN_INFO, "applying Maxtor " + "errata fix %s\n", model_num); dev->udma_mask &= ATA_UDMA5; return; } diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index 169e200..5aa288d 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c @@ -100,10 +100,14 @@ enum { */ PORT_REGS_SIZE = 0x2000, - PORT_LRAM = 0x0000, /* 31 LRAM slots and PM regs */ + PORT_LRAM = 0x0000, /* 31 LRAM slots and PMP regs */ PORT_LRAM_SLOT_SZ = 0x0080, /* 32 bytes PRB + 2 SGE, ACT... */ - PORT_PM = 0x0f80, /* 8 bytes PM * 16 (128 bytes) */ + PORT_PMP = 0x0f80, /* 8 bytes PMP * 16 (128 bytes) */ + PORT_PMP_STATUS = 0x0000, /* port device status offset */ + PORT_PMP_QACTIVE = 0x0004, /* port device QActive offset */ + PORT_PMP_SIZE = 0x0008, /* 8 bytes per PMP */ + /* 32 bit regs */ PORT_CTRL_STAT = 0x1000, /* write: ctrl-set, read: stat */ PORT_CTRL_CLR = 0x1004, /* write: ctrl-clear */ @@ -126,6 +130,7 @@ enum { PORT_PHY_CFG = 0x1050, PORT_SLOT_STAT = 0x1800, PORT_CMD_ACTIVATE = 0x1c00, /* 64 bit cmd activate * 31 (248 bytes) */ + PORT_CONTEXT = 0x1e04, PORT_EXEC_DIAG = 0x1e00, /* 32bit exec diag * 16 (64 bytes, 0-10 used on 3124) */ PORT_PSD_DIAG = 0x1e40, /* 32bit psd diag * 16 (64 bytes, 0-8 used on 3124) */ PORT_SCONTROL = 0x1f00, @@ -139,9 +144,9 @@ enum { PORT_CS_INIT = (1 << 2), /* port initialize */ PORT_CS_IRQ_WOC = (1 << 3), /* interrupt write one to clear */ PORT_CS_CDB16 = (1 << 5), /* 0=12b cdb, 1=16b cdb */ - PORT_CS_RESUME = (1 << 6), /* port resume */ + PORT_CS_PMP_RESUME = (1 << 6), /* PMP resume */ PORT_CS_32BIT_ACTV = (1 << 10), /* 32-bit activation */ - PORT_CS_PM_EN = (1 << 13), /* port multiplier enable */ + PORT_CS_PMP_EN = (1 << 13), /* port multiplier enable */ PORT_CS_RDY = (1 << 31), /* port ready to accept commands */ /* PORT_IRQ_STAT/ENABLE_SET/CLR */ @@ -562,7 +567,7 @@ static int sil24_softreset(struct ata_port *ap, unsigned int *class) /* do SRST */ prb->ctrl = cpu_to_le16(PRB_CTRL_SRST); - prb->fis[1] = 0; /* no PM yet */ + prb->fis[1] = 0; /* no PMP yet */ writel((u32)paddr, port + PORT_CMD_ACTIVATE); writel((u64)paddr >> 32, port + PORT_CMD_ACTIVATE + 4); @@ -1050,7 +1055,8 @@ static void sil24_init_controller(struct pci_dev *pdev, int n_ports, writel(PORT_CS_32BIT_ACTV, port + PORT_CTRL_CLR); /* Clear port multiplier enable and resume bits */ - writel(PORT_CS_PM_EN | PORT_CS_RESUME, port + PORT_CTRL_CLR); + writel(PORT_CS_PMP_EN | PORT_CS_PMP_RESUME, + port + PORT_CTRL_CLR); } /* Turn on interrupts */ diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c index 9d1235b..9c25a1e 100644 --- a/drivers/ata/sata_sis.c +++ b/drivers/ata/sata_sis.c @@ -173,7 +173,7 @@ static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg) if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED)) pci_read_config_dword(pdev, cfg_addr+0x10, &val2); - return val|val2; + return (val|val2) & 0xfffffffb; /* avoid problems with powerdowned ports */ } static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val) @@ -212,7 +212,7 @@ static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg) if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED)) val2 = inl(ap->ioaddr.scr_addr + (sc_reg * 4) + 0x10); - return val | val2; + return (val | val2) & 0xfffffffb; } static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) @@ -239,7 +239,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) static int printed_version; struct ata_probe_ent *probe_ent = NULL; int rc; - u32 genctl; + u32 genctl, val; struct ata_port_info pi = sis_port_info, *ppi[2] = { &pi, &pi }; int pci_dev_busy = 0; u8 pmr; @@ -285,17 +285,24 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) if (ent->device != 0x182) { if ((pmr & SIS_PMR_COMBINED) == 0) { dev_printk(KERN_INFO, &pdev->dev, - "Detected SiS 180/181 chipset in SATA mode\n"); + "Detected SiS 180/181/964 chipset in SATA mode\n"); port2_start = 64; } else { dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 180/181 chipset in combined mode\n"); port2_start=0; + pi.flags |= ATA_FLAG_SLAVE_POSS; } } else { - dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182 chipset\n"); + pci_read_config_dword ( pdev, 0x6C, &val); + if (val & (1L << 31)) { + dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182/965 chipset\n"); + pi.flags |= ATA_FLAG_SLAVE_POSS; + } + else + dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182/965L chipset\n"); port2_start = 0x20; } diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 4bef76a..1f745f1 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -5,6 +5,7 @@ #include <linux/sysdev.h> #include <linux/module.h> #include <linux/init.h> +#include <linux/sched.h> #include <linux/cpu.h> #include <linux/topology.h> #include <linux/device.h> diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c index ec5a1b9..e19ba4e 100644 --- a/drivers/block/viodasd.c +++ b/drivers/block/viodasd.c @@ -759,6 +759,8 @@ static struct vio_driver viodasd_driver = { } }; +static int need_delete_probe; + /* * Initialize the whole device driver. Handle module and non-module * versions @@ -773,46 +775,67 @@ static int __init viodasd_init(void) if (viopath_hostLp == HvLpIndexInvalid) { printk(VIOD_KERN_WARNING "invalid hosting partition\n"); - return -EIO; + rc = -EIO; + goto early_fail; } printk(VIOD_KERN_INFO "vers " VIOD_VERS ", hosting partition %d\n", viopath_hostLp); /* register the block device */ - if (register_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME)) { + rc = register_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME); + if (rc) { printk(VIOD_KERN_WARNING "Unable to get major number %d for %s\n", VIODASD_MAJOR, VIOD_GENHD_NAME); - return -EIO; + goto early_fail; } /* Actually open the path to the hosting partition */ - if (viopath_open(viopath_hostLp, viomajorsubtype_blockio, - VIOMAXREQ + 2)) { + rc = viopath_open(viopath_hostLp, viomajorsubtype_blockio, + VIOMAXREQ + 2); + if (rc) { printk(VIOD_KERN_WARNING "error opening path to host partition %d\n", viopath_hostLp); - unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME); - return -EIO; + goto unregister_blk; } /* Initialize our request handler */ vio_setHandler(viomajorsubtype_blockio, handle_block_event); rc = vio_register_driver(&viodasd_driver); - if (rc == 0) - driver_create_file(&viodasd_driver.driver, &driver_attr_probe); + if (rc) { + printk(VIOD_KERN_WARNING "vio_register_driver failed\n"); + goto unset_handler; + } + + /* + * If this call fails, it just means that we cannot dynamically + * add virtual disks, but the driver will still work fine for + * all existing disk, so ignore the failure. + */ + if (!driver_create_file(&viodasd_driver.driver, &driver_attr_probe)) + need_delete_probe = 1; + + return 0; + +unset_handler: + vio_clearHandler(viomajorsubtype_blockio); + viopath_close(viopath_hostLp, viomajorsubtype_blockio, VIOMAXREQ + 2); +unregister_blk: + unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME); +early_fail: return rc; } module_init(viodasd_init); -void viodasd_exit(void) +void __exit viodasd_exit(void) { - driver_remove_file(&viodasd_driver.driver, &driver_attr_probe); + if (need_delete_probe) + driver_remove_file(&viodasd_driver.driver, &driver_attr_probe); vio_unregister_driver(&viodasd_driver); vio_clearHandler(viomajorsubtype_blockio); - unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME); viopath_close(viopath_hostLp, viomajorsubtype_blockio, VIOMAXREQ + 2); + unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME); } - module_exit(viodasd_exit); diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index 091a11c..20dc3be 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -21,6 +21,7 @@ #include <linux/fcntl.h> #include <linux/init.h> #include <linux/poll.h> +#include <linux/mm.h> #include <linux/proc_fs.h> #include <linux/spinlock.h> #include <linux/sysctl.h> diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c index ebace20..26a860a 100644 --- a/drivers/char/hw_random/core.c +++ b/drivers/char/hw_random/core.c @@ -36,6 +36,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/fs.h> +#include <linux/sched.h> #include <linux/init.h> #include <linux/miscdevice.h> #include <linux/delay.h> diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 050ced2..bb9a43c 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -22,6 +22,7 @@ #include <linux/pci.h> #include <linux/delay.h> #include <linux/fs.h> +#include <linux/sched.h> #include <linux/miscdevice.h> #include <linux/platform_device.h> #include <linux/io.h> diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c index e5cb0fd..b1dc63e 100644 --- a/drivers/hwmon/abituguru.c +++ b/drivers/hwmon/abituguru.c @@ -21,6 +21,7 @@ etc voltage & frequency control is not supported! */ #include <linux/module.h> +#include <linux/sched.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/jiffies.h> diff --git a/drivers/hwmon/hdaps.c b/drivers/hwmon/hdaps.c index 26be4ea..e8ef62b 100644 --- a/drivers/hwmon/hdaps.c +++ b/drivers/hwmon/hdaps.c @@ -33,6 +33,7 @@ #include <linux/module.h> #include <linux/timer.h> #include <linux/dmi.h> +#include <linux/jiffies.h> #include <asm/io.h> #define HDAPS_LOW_PORT 0x1600 /* first port used by hdaps */ diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c index 2af634d..eb7ab11 100644 --- a/drivers/ide/pci/via82cxxx.c +++ b/drivers/ide/pci/via82cxxx.c @@ -35,7 +35,7 @@ #include <linux/ide.h> #include <asm/io.h> -#ifdef CONFIG_PPC_MULTIPLATFORM +#ifdef CONFIG_PPC_CHRP #include <asm/processor.h> #endif @@ -442,7 +442,7 @@ static void __devinit init_hwif_via82cxxx(ide_hwif_t *hwif) hwif->speedproc = &via_set_drive; -#if defined(CONFIG_PPC_CHRP) && defined(CONFIG_PPC32) +#ifdef CONFIG_PPC_CHRP if(machine_is(chrp) && _chrp_type == _CHRP_Pegasos) { hwif->irq = hwif->channel ? 15 : 14; } diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index 0606744..5e12250 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -35,6 +35,7 @@ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/mm.h> +#include <linux/highmem.h> #include <asm/io.h> #include <asm/scatterlist.h> #include <linux/scatterlist.h> diff --git a/drivers/isdn/divert/isdn_divert.c b/drivers/isdn/divert/isdn_divert.c index 1f5ebe9..03319ea 100644 --- a/drivers/isdn/divert/isdn_divert.c +++ b/drivers/isdn/divert/isdn_divert.c @@ -10,6 +10,8 @@ */ #include <linux/proc_fs.h> +#include <linux/timer.h> +#include <linux/jiffies.h> #include "isdn_divert.h" diff --git a/drivers/leds/ledtrig-ide-disk.c b/drivers/leds/ledtrig-ide-disk.c index fa65188..54b155c 100644 --- a/drivers/leds/ledtrig-ide-disk.c +++ b/drivers/leds/ledtrig-ide-disk.c @@ -12,6 +12,7 @@ */ #include <linux/module.h> +#include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/timer.h> diff --git a/drivers/leds/ledtrig-timer.c b/drivers/leds/ledtrig-timer.c index 29a8818..d756bdb 100644 --- a/drivers/leds/ledtrig-timer.c +++ b/drivers/leds/ledtrig-timer.c @@ -12,6 +12,7 @@ */ #include <linux/module.h> +#include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/list.h> diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig index 7f8477d..92ccee8 100644 --- a/drivers/macintosh/Kconfig +++ b/drivers/macintosh/Kconfig @@ -228,4 +228,11 @@ config ANSLCD tristate "Support for ANS LCD display" depends on ADB_CUDA && PPC_PMAC +config PMAC_RACKMETER + tristate "Support for Apple XServe front panel LEDs" + depends on PPC_PMAC + help + This driver procides some support to control the front panel + blue LEDs "vu-meter" of the XServer macs. + endmenu diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile index b53d45f..2dfc3f4 100644 --- a/drivers/macintosh/Makefile +++ b/drivers/macintosh/Makefile @@ -42,3 +42,4 @@ obj-$(CONFIG_WINDFARM_PM112) += windfarm_pm112.o windfarm_smu_sat.o \ windfarm_smu_sensors.o \ windfarm_max6690_sensor.o \ windfarm_lm75_sensor.o windfarm_pid.o +obj-$(CONFIG_PMAC_RACKMETER) += rack-meter.o diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c new file mode 100644 index 0000000..f1b6f56 --- /dev/null +++ b/drivers/macintosh/rack-meter.c @@ -0,0 +1,612 @@ +/* + * RackMac vu-meter driver + * + * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp. + * <benh@kernel.crashing.org> + * + * Released under the term of the GNU GPL v2. + * + * Support the CPU-meter LEDs of the Xserve G5 + * + * TODO: Implement PWM to do variable intensity and provide userland + * interface for fun. Also, the CPU-meter could be made nicer by being + * a bit less "immediate" but giving instead a more average load over + * time. Patches welcome :-) + * + */ +#undef DEBUG + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/device.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/kernel_stat.h> + +#include <asm/io.h> +#include <asm/prom.h> +#include <asm/machdep.h> +#include <asm/pmac_feature.h> +#include <asm/dbdma.h> +#include <asm/dbdma.h> +#include <asm/macio.h> +#include <asm/keylargo.h> + +/* Number of samples in a sample buffer */ +#define SAMPLE_COUNT 256 + +/* CPU meter sampling rate in ms */ +#define CPU_SAMPLING_RATE 250 + +struct rackmeter_dma { + struct dbdma_cmd cmd[4] ____cacheline_aligned; + u32 mark ____cacheline_aligned; + u32 buf1[SAMPLE_COUNT] ____cacheline_aligned; + u32 buf2[SAMPLE_COUNT] ____cacheline_aligned; +} ____cacheline_aligned; + +struct rackmeter_cpu { + struct work_struct sniffer; + cputime64_t prev_wall; + cputime64_t prev_idle; + int zero; +} ____cacheline_aligned; + +struct rackmeter { + struct macio_dev *mdev; + unsigned int irq; + struct device_node *i2s; + u8 *ubuf; + struct dbdma_regs __iomem *dma_regs; + void __iomem *i2s_regs; + dma_addr_t dma_buf_p; + struct rackmeter_dma *dma_buf_v; + int stale_irq; + struct rackmeter_cpu cpu[2]; + int paused; + struct mutex sem; +}; + +/* To be set as a tunable */ +static int rackmeter_ignore_nice; + +/* This GPIO is whacked by the OS X driver when initializing */ +#define RACKMETER_MAGIC_GPIO 0x78 + +/* This is copied from cpufreq_ondemand, maybe we should put it in + * a common header somewhere + */ +static inline cputime64_t get_cpu_idle_time(unsigned int cpu) +{ + cputime64_t retval; + + retval = cputime64_add(kstat_cpu(cpu).cpustat.idle, + kstat_cpu(cpu).cpustat.iowait); + + if (rackmeter_ignore_nice) + retval = cputime64_add(retval, kstat_cpu(cpu).cpustat.nice); + + return retval; +} + +static void rackmeter_setup_i2s(struct rackmeter *rm) +{ + struct macio_chip *macio = rm->mdev->bus->chip; + + /* First whack magic GPIO */ + pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, RACKMETER_MAGIC_GPIO, 5); + + + /* Call feature code to enable the sound channel and the proper + * clock sources + */ + pmac_call_feature(PMAC_FTR_SOUND_CHIP_ENABLE, rm->i2s, 0, 1); + + /* Power i2s and stop i2s clock. We whack MacIO FCRs directly for now. + * This is a bit racy, thus we should add new platform functions to + * handle that. snd-aoa needs that too + */ + MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_ENABLE); + MACIO_BIC(KEYLARGO_FCR1, KL1_I2S0_CLK_ENABLE_BIT); + (void)MACIO_IN32(KEYLARGO_FCR1); + udelay(10); + + /* Then setup i2s. For now, we use the same magic value that + * the OS X driver seems to use. We might want to play around + * with the clock divisors later + */ + out_le32(rm->i2s_regs + 0x10, 0x01fa0000); + (void)in_le32(rm->i2s_regs + 0x10); + udelay(10); + + /* Fully restart i2s*/ + MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_CELL_ENABLE | + KL1_I2S0_CLK_ENABLE_BIT); + (void)MACIO_IN32(KEYLARGO_FCR1); + udelay(10); +} + +static void rackmeter_set_default_pattern(struct rackmeter *rm) +{ + int i; + + for (i = 0; i < 16; i++) { + if (i < 8) + rm->ubuf[i] = (i & 1) * 255; + else + rm->ubuf[i] = ((~i) & 1) * 255; + } +} + +static void rackmeter_do_pause(struct rackmeter *rm, int pause) +{ + struct rackmeter_dma *rdma = rm->dma_buf_v; + + pr_debug("rackmeter: %s\n", pause ? "paused" : "started"); + + rm->paused = pause; + if (pause) { + DBDMA_DO_STOP(rm->dma_regs); + return; + } + memset(rdma->buf1, 0, SAMPLE_COUNT & sizeof(u32)); + memset(rdma->buf2, 0, SAMPLE_COUNT & sizeof(u32)); + + rm->dma_buf_v->mark = 0; + + mb(); + out_le32(&rm->dma_regs->cmdptr_hi, 0); + out_le32(&rm->dma_regs->cmdptr, rm->dma_buf_p); + out_le32(&rm->dma_regs->control, (RUN << 16) | RUN); +} + +static void rackmeter_setup_dbdma(struct rackmeter *rm) +{ + struct rackmeter_dma *db = rm->dma_buf_v; + struct dbdma_cmd *cmd = db->cmd; + + /* Make sure dbdma is reset */ + DBDMA_DO_RESET(rm->dma_regs); + + pr_debug("rackmeter: mark offset=0x%lx\n", + offsetof(struct rackmeter_dma, mark)); + pr_debug("rackmeter: buf1 offset=0x%lx\n", + offsetof(struct rackmeter_dma, buf1)); + pr_debug("rackmeter: buf2 offset=0x%lx\n", + offsetof(struct rackmeter_dma, buf2)); + + /* Prepare 4 dbdma commands for the 2 buffers */ + memset(cmd, 0, 4 * sizeof(struct dbdma_cmd)); + st_le16(&cmd->req_count, 4); + st_le16(&cmd->command, STORE_WORD | INTR_ALWAYS | KEY_SYSTEM); + st_le32(&cmd->phy_addr, rm->dma_buf_p + + offsetof(struct rackmeter_dma, mark)); + st_le32(&cmd->cmd_dep, 0x02000000); + cmd++; + + st_le16(&cmd->req_count, SAMPLE_COUNT * 4); + st_le16(&cmd->command, OUTPUT_MORE); + st_le32(&cmd->phy_addr, rm->dma_buf_p + + offsetof(struct rackmeter_dma, buf1)); + cmd++; + + st_le16(&cmd->req_count, 4); + st_le16(&cmd->command, STORE_WORD | INTR_ALWAYS | KEY_SYSTEM); + st_le32(&cmd->phy_addr, rm->dma_buf_p + + offsetof(struct rackmeter_dma, mark)); + st_le32(&cmd->cmd_dep, 0x01000000); + cmd++; + + st_le16(&cmd->req_count, SAMPLE_COUNT * 4); + st_le16(&cmd->command, OUTPUT_MORE | BR_ALWAYS); + st_le32(&cmd->phy_addr, rm->dma_buf_p + + offsetof(struct rackmeter_dma, buf2)); + st_le32(&cmd->cmd_dep, rm->dma_buf_p); + + rackmeter_do_pause(rm, 0); +} + +static void rackmeter_do_timer(void *data) +{ + struct rackmeter *rm = data; + unsigned int cpu = smp_processor_id(); + struct rackmeter_cpu *rcpu = &rm->cpu[cpu]; + cputime64_t cur_jiffies, total_idle_ticks; + unsigned int total_ticks, idle_ticks; + int i, offset, load, cumm, pause; + + cur_jiffies = jiffies64_to_cputime64(get_jiffies_64()); + total_ticks = (unsigned int)cputime64_sub(cur_jiffies, + rcpu->prev_wall); + rcpu->prev_wall = cur_jiffies; + + total_idle_ticks = get_cpu_idle_time(cpu); + idle_ticks = (unsigned int) cputime64_sub(total_idle_ticks, + rcpu->prev_idle); + rcpu->prev_idle = total_idle_ticks; + + /* We do a very dumb calculation to update the LEDs for now, + * we'll do better once we have actual PWM implemented + */ + load = (9 * (total_ticks - idle_ticks)) / total_ticks; + + offset = cpu << 3; + cumm = 0; + for (i = 0; i < 8; i++) { + u8 ub = (load > i) ? 0xff : 0; + rm->ubuf[i + offset] = ub; + cumm |= ub; + } + rcpu->zero = (cumm == 0); + + /* Now check if LEDs are all 0, we can stop DMA */ + pause = (rm->cpu[0].zero && rm->cpu[1].zero); + if (pause != rm->paused) { + mutex_lock(&rm->sem); + pause = (rm->cpu[0].zero && rm->cpu[1].zero); + rackmeter_do_pause(rm, pause); + mutex_unlock(&rm->sem); + } + schedule_delayed_work_on(cpu, &rcpu->sniffer, + msecs_to_jiffies(CPU_SAMPLING_RATE)); +} + +static void __devinit rackmeter_init_cpu_sniffer(struct rackmeter *rm) +{ + unsigned int cpu; + + /* This driver works only with 1 or 2 CPUs numbered 0 and 1, + * but that's really all we have on Apple Xserve. It doesn't + * play very nice with CPU hotplug neither but we don't do that + * on those machines yet + */ + + INIT_WORK(&rm->cpu[0].sniffer, rackmeter_do_timer, rm); + INIT_WORK(&rm->cpu[1].sniffer, rackmeter_do_timer, rm); + + for_each_online_cpu(cpu) { + struct rackmeter_cpu *rcpu; + + if (cpu > 1) + continue; + rcpu = &rm->cpu[cpu];; + rcpu->prev_idle = get_cpu_idle_time(cpu); + rcpu->prev_wall = jiffies64_to_cputime64(get_jiffies_64()); + schedule_delayed_work_on(cpu, &rm->cpu[cpu].sniffer, + msecs_to_jiffies(CPU_SAMPLING_RATE)); + } +} + +static void __devexit rackmeter_stop_cpu_sniffer(struct rackmeter *rm) +{ + cancel_rearming_delayed_work(&rm->cpu[0].sniffer); + cancel_rearming_delayed_work(&rm->cpu[1].sniffer); +} + +static int rackmeter_setup(struct rackmeter *rm) +{ + pr_debug("rackmeter: setting up i2s..\n"); + rackmeter_setup_i2s(rm); + + pr_debug("rackmeter: setting up default pattern..\n"); + rackmeter_set_default_pattern(rm); + + pr_debug("rackmeter: setting up dbdma..\n"); + rackmeter_setup_dbdma(rm); + + pr_debug("rackmeter: start CPU measurements..\n"); + rackmeter_init_cpu_sniffer(rm); + + printk(KERN_INFO "RackMeter initialized\n"); + + return 0; +} + +/* XXX FIXME: No PWM yet, this is 0/1 */ +static u32 rackmeter_calc_sample(struct rackmeter *rm, unsigned int index) +{ + int led; + u32 sample = 0; + + for (led = 0; led < 16; led++) { + sample >>= 1; + sample |= ((rm->ubuf[led] >= 0x80) << 15); + } + return (sample << 17) | (sample >> 15); +} + +static irqreturn_t rackmeter_irq(int irq, void *arg) +{ + struct rackmeter *rm = arg; + struct rackmeter_dma *db = rm->dma_buf_v; + unsigned int mark, i; + u32 *buf; + + /* Flush PCI buffers with an MMIO read. Maybe we could actually + * check the status one day ... in case things go wrong, though + * this never happened to me + */ + (void)in_le32(&rm->dma_regs->status); + + /* Make sure the CPU gets us in order */ + rmb(); + + /* Read mark */ + mark = db->mark; + if (mark != 1 && mark != 2) { + printk(KERN_WARNING "rackmeter: Incorrect DMA mark 0x%08x\n", + mark); + /* We allow for 3 errors like that (stale DBDMA irqs) */ + if (++rm->stale_irq > 3) { + printk(KERN_ERR "rackmeter: Too many errors," + " stopping DMA\n"); + DBDMA_DO_RESET(rm->dma_regs); + } + return IRQ_HANDLED; + } + + /* Next buffer we need to fill is mark value */ + buf = mark == 1 ? db->buf1 : db->buf2; + + /* Fill it now. This routine converts the 8 bits depth sample array + * into the PWM bitmap for each LED. + */ + for (i = 0; i < SAMPLE_COUNT; i++) + buf[i] = rackmeter_calc_sample(rm, i); + + + return IRQ_HANDLED; +} + +static int __devinit rackmeter_probe(struct macio_dev* mdev, + const struct of_device_id *match) +{ + struct device_node *i2s = NULL, *np = NULL; + struct rackmeter *rm = NULL; + struct resource ri2s, rdma; + int rc = -ENODEV; + + pr_debug("rackmeter_probe()\n"); + + /* Get i2s-a node */ + while ((i2s = of_get_next_child(mdev->ofdev.node, i2s)) != NULL) + if (strcmp(i2s->name, "i2s-a") == 0) + break; + if (i2s == NULL) { + pr_debug(" i2s-a child not found\n"); + goto bail; + } + /* Get lightshow or virtual sound */ + while ((np = of_get_next_child(i2s, np)) != NULL) { + if (strcmp(np->name, "lightshow") == 0) + break; + if ((strcmp(np->name, "sound") == 0) && + get_property(np, "virtual", NULL) != NULL) + break; + } + if (np == NULL) { + pr_debug(" lightshow or sound+virtual child not found\n"); + goto bail; + } + + /* Create and initialize our instance data */ + rm = kzalloc(sizeof(struct rackmeter), GFP_KERNEL); + if (rm == NULL) { + printk(KERN_ERR "rackmeter: failed to allocate memory !\n"); + rc = -ENOMEM; + goto bail_release; + } + rm->mdev = mdev; + rm->i2s = i2s; + mutex_init(&rm->sem); + dev_set_drvdata(&mdev->ofdev.dev, rm); + /* Check resources availability. We need at least resource 0 and 1 */ +#if 0 /* Use that when i2s-a is finally an mdev per-se */ + if (macio_resource_count(mdev) < 2 || macio_irq_count(mdev) < 2) { + printk(KERN_ERR + "rackmeter: found match but lacks resources: %s" + " (%d resources, %d interrupts)\n", + mdev->ofdev.node->full_name); + rc = -ENXIO; + goto bail_free; + } + if (macio_request_resources(mdev, "rackmeter")) { + printk(KERN_ERR + "rackmeter: failed to request resources: %s\n", + mdev->ofdev.node->full_name); + rc = -EBUSY; + goto bail_free; + } + rm->irq = macio_irq(mdev, 1); +#else + rm->irq = irq_of_parse_and_map(i2s, 1); + if (rm->irq == NO_IRQ || + of_address_to_resource(i2s, 0, &ri2s) || + of_address_to_resource(i2s, 1, &rdma)) { + printk(KERN_ERR + "rackmeter: found match but lacks resources: %s", + mdev->ofdev.node->full_name); + rc = -ENXIO; + goto bail_free; + } +#endif + + pr_debug(" i2s @0x%08x\n", (unsigned int)ri2s.start); + pr_debug(" dma @0x%08x\n", (unsigned int)rdma.start); + pr_debug(" irq %d\n", rm->irq); + + rm->ubuf = (u8 *)__get_free_page(GFP_KERNEL); + if (rm->ubuf == NULL) { + printk(KERN_ERR + "rackmeter: failed to allocate samples page !\n"); + rc = -ENOMEM; + goto bail_release; + } + + rm->dma_buf_v = dma_alloc_coherent(&macio_get_pci_dev(mdev)->dev, + sizeof(struct rackmeter_dma), + &rm->dma_buf_p, GFP_KERNEL); + if (rm->dma_buf_v == NULL) { + printk(KERN_ERR + "rackmeter: failed to allocate dma buffer !\n"); + rc = -ENOMEM; + goto bail_free_samples; + } +#if 0 + rm->i2s_regs = ioremap(macio_resource_start(mdev, 0), 0x1000); +#else + rm->i2s_regs = ioremap(ri2s.start, 0x1000); +#endif + if (rm->i2s_regs == NULL) { + printk(KERN_ERR + "rackmeter: failed to map i2s registers !\n"); + rc = -ENXIO; + goto bail_free_dma; + } +#if 0 + rm->dma_regs = ioremap(macio_resource_start(mdev, 1), 0x100); +#else + rm->dma_regs = ioremap(rdma.start, 0x100); +#endif + if (rm->dma_regs == NULL) { + printk(KERN_ERR + "rackmeter: failed to map dma registers !\n"); + rc = -ENXIO; + goto bail_unmap_i2s; + } + + rc = rackmeter_setup(rm); + if (rc) { + printk(KERN_ERR + "rackmeter: failed to initialize !\n"); + rc = -ENXIO; + goto bail_unmap_dma; + } + + rc = request_irq(rm->irq, rackmeter_irq, 0, "rackmeter", rm); + if (rc != 0) { + printk(KERN_ERR + "rackmeter: failed to request interrupt !\n"); + goto bail_stop_dma; + } + of_node_put(np); + return 0; + + bail_stop_dma: + DBDMA_DO_RESET(rm->dma_regs); + bail_unmap_dma: + iounmap(rm->dma_regs); + bail_unmap_i2s: + iounmap(rm->i2s_regs); + bail_free_dma: + dma_free_coherent(&macio_get_pci_dev(mdev)->dev, + sizeof(struct rackmeter_dma), + rm->dma_buf_v, rm->dma_buf_p); + bail_free_samples: + free_page((unsigned long)rm->ubuf); + bail_release: +#if 0 + macio_release_resources(mdev); +#endif + bail_free: + kfree(rm); + bail: + of_node_put(i2s); + of_node_put(np); + dev_set_drvdata(&mdev->ofdev.dev, NULL); + return rc; +} + +static int __devexit rackmeter_remove(struct macio_dev* mdev) +{ + struct rackmeter *rm = dev_get_drvdata(&mdev->ofdev.dev); + + /* Stop CPU sniffer timer & work queues */ + rackmeter_stop_cpu_sniffer(rm); + + /* Clear reference to private data */ + dev_set_drvdata(&mdev->ofdev.dev, NULL); + + /* Stop/reset dbdma */ + DBDMA_DO_RESET(rm->dma_regs); + + /* Release the IRQ */ + free_irq(rm->irq, rm); + + /* Unmap registers */ + iounmap(rm->dma_regs); + iounmap(rm->i2s_regs); + + /* Free DMA */ + dma_free_coherent(&macio_get_pci_dev(mdev)->dev, + sizeof(struct rackmeter_dma), + rm->dma_buf_v, rm->dma_buf_p); + + /* Free samples */ + free_page((unsigned long)rm->ubuf); + +#if 0 + /* Release resources */ + macio_release_resources(mdev); +#endif + + /* Get rid of me */ + kfree(rm); + + return 0; +} + +static int rackmeter_shutdown(struct macio_dev* mdev) +{ + struct rackmeter *rm = dev_get_drvdata(&mdev->ofdev.dev); + + if (rm == NULL) + return -ENODEV; + + /* Stop CPU sniffer timer & work queues */ + rackmeter_stop_cpu_sniffer(rm); + + /* Stop/reset dbdma */ + DBDMA_DO_RESET(rm->dma_regs); + + return 0; +} + +static struct of_device_id rackmeter_match[] = { + { .name = "i2s" }, + { } +}; + +static struct macio_driver rackmeter_drv = { + .name = "rackmeter", + .owner = THIS_MODULE, + .match_table = rackmeter_match, + .probe = rackmeter_probe, + .remove = rackmeter_remove, + .shutdown = rackmeter_shutdown, +}; + + +static int __init rackmeter_init(void) +{ + pr_debug("rackmeter_init()\n"); + + return macio_register_driver(&rackmeter_drv); +} + +static void __exit rackmeter_exit(void) +{ + pr_debug("rackmeter_exit()\n"); + + macio_unregister_driver(&rackmeter_drv); +} + +module_init(rackmeter_init); +module_exit(rackmeter_exit); + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>"); +MODULE_DESCRIPTION("RackMeter: Support vu-meter on XServe front panel"); diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index 4871158..6dde27a 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -46,6 +46,7 @@ #include <asm/abs_addr.h> #include <asm/uaccess.h> #include <asm/of_device.h> +#include <asm/of_platform.h> #define VERSION "0.7" #define AUTHOR "(c) 2005 Benjamin Herrenschmidt, IBM Corp." @@ -653,7 +654,7 @@ static int __init smu_init_sysfs(void) * I'm a bit too far from figuring out how that works with those * new chipsets, but that will come back and bite us */ - of_register_driver(&smu_of_platform_driver); + of_register_platform_driver(&smu_of_platform_driver); return 0; } diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c index a0f30d0..13b953a 100644 --- a/drivers/macintosh/therm_adt746x.c +++ b/drivers/macintosh/therm_adt746x.c @@ -30,7 +30,7 @@ #include <asm/io.h> #include <asm/system.h> #include <asm/sections.h> -#include <asm/of_device.h> +#include <asm/of_platform.h> #undef DEBUG diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c index d00c0c3..2e4ad44 100644 --- a/drivers/macintosh/therm_pm72.c +++ b/drivers/macintosh/therm_pm72.c @@ -129,6 +129,7 @@ #include <asm/sections.h> #include <asm/of_device.h> #include <asm/macio.h> +#include <asm/of_platform.h> #include "therm_pm72.h" @@ -2236,14 +2237,14 @@ static int __init therm_pm72_init(void) return -ENODEV; } - of_register_driver(&fcu_of_platform_driver); + of_register_platform_driver(&fcu_of_platform_driver); return 0; } static void __exit therm_pm72_exit(void) { - of_unregister_driver(&fcu_of_platform_driver); + of_unregister_platform_driver(&fcu_of_platform_driver); if (of_dev) of_device_unregister(of_dev); diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c index 738faab..a1d3a98 100644 --- a/drivers/macintosh/therm_windtunnel.c +++ b/drivers/macintosh/therm_windtunnel.c @@ -36,12 +36,13 @@ #include <linux/i2c.h> #include <linux/slab.h> #include <linux/init.h> + #include <asm/prom.h> #include <asm/machdep.h> #include <asm/io.h> #include <asm/system.h> #include <asm/sections.h> -#include <asm/of_device.h> +#include <asm/of_platform.h> #include <asm/macio.h> #define LOG_TEMP 0 /* continously log temperature */ @@ -511,14 +512,14 @@ g4fan_init( void ) return -ENODEV; } - of_register_driver( &therm_of_driver ); + of_register_platform_driver( &therm_of_driver ); return 0; } static void __exit g4fan_exit( void ) { - of_unregister_driver( &therm_of_driver ); + of_unregister_platform_driver( &therm_of_driver ); if( x.of_dev ) of_device_unregister( x.of_dev ); diff --git a/drivers/media/dvb/cinergyT2/cinergyT2.c b/drivers/media/dvb/cinergyT2/cinergyT2.c index 8458ff3..206c13e 100644 --- a/drivers/media/dvb/cinergyT2/cinergyT2.c +++ b/drivers/media/dvb/cinergyT2/cinergyT2.c @@ -30,6 +30,7 @@ #include <linux/input.h> #include <linux/dvb/frontend.h> #include <linux/mutex.h> +#include <linux/mm.h> #include "dmxdev.h" #include "dvb_demux.h" diff --git a/drivers/net/ehea/ehea_qmr.c b/drivers/net/ehea/ehea_qmr.c index 72ef7bd..f143e13 100644 --- a/drivers/net/ehea/ehea_qmr.c +++ b/drivers/net/ehea/ehea_qmr.c @@ -26,6 +26,7 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#include <linux/mm.h> #include "ehea.h" #include "ehea_phyp.h" #include "ehea_qmr.h" diff --git a/drivers/net/ibm_emac/ibm_emac_mal.h b/drivers/net/ibm_emac/ibm_emac_mal.h index f73f10a..407d2ac 100644 --- a/drivers/net/ibm_emac/ibm_emac_mal.h +++ b/drivers/net/ibm_emac/ibm_emac_mal.h @@ -24,6 +24,7 @@ #include <linux/netdevice.h> #include <asm/io.h> +#include <asm/dcr.h> /* * These MAL "versions" probably aren't the real versions IBM uses for these @@ -191,6 +192,7 @@ struct mal_commac { struct ibm_ocp_mal { int dcrbase; + dcr_host_t dcrhost; struct list_head poll_list; struct net_device poll_dev; @@ -207,12 +209,12 @@ struct ibm_ocp_mal { static inline u32 get_mal_dcrn(struct ibm_ocp_mal *mal, int reg) { - return mfdcr(mal->dcrbase + reg); + return dcr_read(mal->dcrhost, mal->dcrbase + reg); } static inline void set_mal_dcrn(struct ibm_ocp_mal *mal, int reg, u32 val) { - mtdcr(mal->dcrbase + reg, val); + dcr_write(mal->dcrhost, mal->dcrbase + reg, val); } /* Register MAL devices */ diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c index 44c9f99..99343b5 100644 --- a/drivers/net/ibmveth.c +++ b/drivers/net/ibmveth.c @@ -50,7 +50,6 @@ #include <asm/semaphore.h> #include <asm/hvcall.h> #include <asm/atomic.h> -#include <asm/iommu.h> #include <asm/vio.h> #include <asm/uaccess.h> #include <linux/seq_file.h> @@ -1000,8 +999,6 @@ static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_ adapter->mac_addr = 0; memcpy(&adapter->mac_addr, mac_addr_p, 6); - adapter->liobn = dev->iommu_table->it_index; - netdev->irq = dev->irq; netdev->open = ibmveth_open; netdev->poll = ibmveth_poll; @@ -1115,7 +1112,6 @@ static int ibmveth_seq_show(struct seq_file *seq, void *v) seq_printf(seq, "%s %s\n\n", ibmveth_driver_string, ibmveth_driver_version); seq_printf(seq, "Unit Address: 0x%x\n", adapter->vdev->unit_address); - seq_printf(seq, "LIOBN: 0x%lx\n", adapter->liobn); seq_printf(seq, "Current MAC: %02X:%02X:%02X:%02X:%02X:%02X\n", current_mac[0], current_mac[1], current_mac[2], current_mac[3], current_mac[4], current_mac[5]); diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h index f5b25bf..bb69cca 100644 --- a/drivers/net/ibmveth.h +++ b/drivers/net/ibmveth.h @@ -118,7 +118,6 @@ struct ibmveth_adapter { struct net_device_stats stats; unsigned int mcastFilterSize; unsigned long mac_addr; - unsigned long liobn; void * buffer_list_addr; void * filter_list_addr; dma_addr_t buffer_list_dma; diff --git a/drivers/net/lance.c b/drivers/net/lance.c index 6efbd49..4256c13 100644 --- a/drivers/net/lance.c +++ b/drivers/net/lance.c @@ -57,6 +57,7 @@ static const char version[] = "lance.c:v1.16 2006/11/09 dplatt@3do.com, becker@c #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> +#include <linux/mm.h> #include <linux/bitops.h> #include <asm/io.h> diff --git a/drivers/net/ne3210.c b/drivers/net/ne3210.c index d663289..1a6fed7 100644 --- a/drivers/net/ne3210.c +++ b/drivers/net/ne3210.c @@ -36,6 +36,7 @@ #include <linux/interrupt.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> +#include <linux/mm.h> #include <asm/io.h> #include <asm/system.h> diff --git a/drivers/net/phy/fixed.c b/drivers/net/phy/fixed.c index f14e992..096d4a1 100644 --- a/drivers/net/phy/fixed.c +++ b/drivers/net/phy/fixed.c @@ -254,7 +254,7 @@ static int fixed_mdio_register_device(int number, int speed, int duplex) goto device_create_fail; } - phydev->irq = -1; + phydev->irq = PHY_IGNORE_INTERRUPT; phydev->dev.bus = &mdio_bus_type; if(number) diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c index 12cbfd1..92d11b9 100644 --- a/drivers/net/sk98lin/skge.c +++ b/drivers/net/sk98lin/skge.c @@ -114,6 +114,7 @@ #include <linux/dma-mapping.h> #include <linux/ip.h> #include <linux/mii.h> +#include <linux/mm.h> #include "h/skdrv1st.h" #include "h/skdrv2nd.h" diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c index f16f696..ebb6aa3 100644 --- a/drivers/net/spider_net.c +++ b/drivers/net/spider_net.c @@ -88,12 +88,11 @@ MODULE_DEVICE_TABLE(pci, spider_net_pci_tbl); static inline u32 spider_net_read_reg(struct spider_net_card *card, u32 reg) { - u32 value; - - value = readl(card->regs + reg); - value = le32_to_cpu(value); - - return value; + /* We use the powerpc specific variants instead of readl_be() because + * we know spidernet is not a real PCI device and we can thus avoid the + * performance hit caused by the PCI workarounds. + */ + return in_be32(card->regs + reg); } /** @@ -105,8 +104,11 @@ spider_net_read_reg(struct spider_net_card *card, u32 reg) static inline void spider_net_write_reg(struct spider_net_card *card, u32 reg, u32 value) { - value = cpu_to_le32(value); - writel(value, card->regs + reg); + /* We use the powerpc specific variants instead of writel_be() because + * we know spidernet is not a real PCI device and we can thus avoid the + * performance hit caused by the PCI workarounds. + */ + out_be32(card->regs + reg, value); } /** spider_net_write_phy - write to phy register diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c index 7a0aee6..bf873ea 100644 --- a/drivers/net/starfire.c +++ b/drivers/net/starfire.c @@ -41,6 +41,7 @@ #include <linux/ethtool.h> #include <linux/mii.h> #include <linux/if_vlan.h> +#include <linux/mm.h> #include <asm/processor.h> /* Processor type for cache alignment. */ #include <asm/uaccess.h> #include <asm/io.h> diff --git a/drivers/net/sun3lance.c b/drivers/net/sun3lance.c index b865db3..47a1c09 100644 --- a/drivers/net/sun3lance.c +++ b/drivers/net/sun3lance.c @@ -38,6 +38,7 @@ static char *version = "sun3lance.c: v1.2 1/12/2001 Sam Creasey (sammy@sammy.ne #include <linux/skbuff.h> #include <linux/bitops.h> +#include <asm/cacheflush.h> #include <asm/setup.h> #include <asm/irq.h> #include <asm/io.h> diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c index d03a9a8..785e4a5 100644 --- a/drivers/net/sungem.c +++ b/drivers/net/sungem.c @@ -56,6 +56,7 @@ #include <linux/if_vlan.h> #include <linux/bitops.h> #include <linux/mutex.h> +#include <linux/mm.h> #include <asm/system.h> #include <asm/io.h> diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c index ec432ea..ef67173 100644 --- a/drivers/net/sunhme.c +++ b/drivers/net/sunhme.c @@ -32,6 +32,7 @@ #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> +#include <linux/mm.h> #include <linux/bitops.h> #include <asm/system.h> @@ -3012,6 +3013,11 @@ static int __devinit happy_meal_pci_probe(struct pci_dev *pdev, #endif err = -ENODEV; + + if (pci_enable_device(pdev)) + goto err_out; + pci_set_master(pdev); + if (!strcmp(prom_name, "SUNW,qfe") || !strcmp(prom_name, "qfe")) { qp = quattro_pci_find(pdev); if (qp == NULL) diff --git a/drivers/net/tokenring/ibmtr.c b/drivers/net/tokenring/ibmtr.c index bfe5986..0d97e10 100644 --- a/drivers/net/tokenring/ibmtr.c +++ b/drivers/net/tokenring/ibmtr.c @@ -1826,7 +1826,7 @@ static void tr_rx(struct net_device *dev) skb->protocol = tr_type_trans(skb, dev); if (IPv4_p) { skb->csum = chksum; - skb->ip_summed = 1; + skb->ip_summed = CHECKSUM_COMPLETE; } netif_rx(skb); dev->last_rx = jiffies; diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c index 3f4b640..4b3cd3d 100644 --- a/drivers/net/tulip/de4x5.c +++ b/drivers/net/tulip/de4x5.c @@ -473,9 +473,9 @@ #include <asm/byteorder.h> #include <asm/unaligned.h> #include <asm/uaccess.h> -#ifdef CONFIG_PPC_MULTIPLATFORM +#ifdef CONFIG_PPC_PMAC #include <asm/machdep.h> -#endif /* CONFIG_PPC_MULTIPLATFORM */ +#endif /* CONFIG_PPC_PMAC */ #include "de4x5.h" @@ -4151,7 +4151,7 @@ get_hw_addr(struct net_device *dev) /* If possible, try to fix a broken card - SMC only so far */ srom_repair(dev, broken); -#ifdef CONFIG_PPC_MULTIPLATFORM +#ifdef CONFIG_PPC_PMAC /* ** If the address starts with 00 a0, we have to bit-reverse ** each byte of the address. @@ -4168,7 +4168,7 @@ get_hw_addr(struct net_device *dev) dev->dev_addr[i] = ((x & 0x55) << 1) + ((x & 0xaa) >> 1); } } -#endif /* CONFIG_PPC_MULTIPLATFORM */ +#endif /* CONFIG_PPC_PMAC */ /* Test for a bad enet address */ status = test_bad_enet(dev, status); diff --git a/drivers/net/typhoon.c b/drivers/net/typhoon.c index 8ddea1d..9781b16 100644 --- a/drivers/net/typhoon.c +++ b/drivers/net/typhoon.c @@ -117,6 +117,7 @@ static const int multicast_filter_limit = 32; #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> +#include <linux/mm.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/ethtool.h> diff --git a/drivers/pci/access.c b/drivers/pci/access.c index 73a58c7..fc405f0 100644 --- a/drivers/pci/access.c +++ b/drivers/pci/access.c @@ -1,5 +1,6 @@ #include <linux/pci.h> #include <linux/module.h> +#include <linux/sched.h> #include <linux/ioport.h> #include <linux/wait.h> diff --git a/drivers/ps3/Makefile b/drivers/ps3/Makefile new file mode 100644 index 0000000..b52d547 --- /dev/null +++ b/drivers/ps3/Makefile @@ -0,0 +1 @@ +obj-y += system-bus.o diff --git a/drivers/ps3/system-bus.c b/drivers/ps3/system-bus.c new file mode 100644 index 0000000..d79f949 --- /dev/null +++ b/drivers/ps3/system-bus.c @@ -0,0 +1,362 @@ +/* + * PS3 system bus driver. + * + * Copyright (C) 2006 Sony Computer Entertainment Inc. + * Copyright 2006 Sony Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/dma-mapping.h> +#include <linux/err.h> + +#include <asm/udbg.h> +#include <asm/ps3.h> +#include <asm/lv1call.h> +#include <asm/firmware.h> + +#define dump_mmio_region(_a) _dump_mmio_region(_a, __func__, __LINE__) +static void _dump_mmio_region(const struct ps3_mmio_region* r, + const char* func, int line) +{ + pr_debug("%s:%d: dev %u:%u\n", func, line, r->did.bus_id, + r->did.dev_id); + pr_debug("%s:%d: bus_addr %lxh\n", func, line, r->bus_addr); + pr_debug("%s:%d: len %lxh\n", func, line, r->len); + pr_debug("%s:%d: lpar_addr %lxh\n", func, line, r->lpar_addr); +} + +int ps3_mmio_region_create(struct ps3_mmio_region *r) +{ + int result; + + result = lv1_map_device_mmio_region(r->did.bus_id, r->did.dev_id, + r->bus_addr, r->len, r->page_size, &r->lpar_addr); + + if (result) { + pr_debug("%s:%d: lv1_map_device_mmio_region failed: %s\n", + __func__, __LINE__, ps3_result(result)); + r->lpar_addr = r->len = r->bus_addr = 0; + } + + dump_mmio_region(r); + return result; +} + +int ps3_free_mmio_region(struct ps3_mmio_region *r) +{ + int result; + + result = lv1_unmap_device_mmio_region(r->did.bus_id, r->did.dev_id, + r->bus_addr); + + if (result) + pr_debug("%s:%d: lv1_unmap_device_mmio_region failed: %s\n", + __func__, __LINE__, ps3_result(result)); + + r->lpar_addr = r->len = r->bus_addr = 0; + return result; +} + +static int ps3_system_bus_match(struct device *_dev, + struct device_driver *_drv) +{ + int result; + struct ps3_system_bus_driver *drv = to_ps3_system_bus_driver(_drv); + struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev); + + result = dev->match_id == drv->match_id; + + pr_info("%s:%d: dev=%u(%s), drv=%u(%s): %s\n", __func__, __LINE__, + dev->match_id, dev->core.bus_id, drv->match_id, drv->core.name, + (result ? "match" : "miss")); + return result; +} + +static int ps3_system_bus_probe(struct device *_dev) +{ + int result; + struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev); + struct ps3_system_bus_driver *drv = + to_ps3_system_bus_driver(_dev->driver); + + result = lv1_open_device(dev->did.bus_id, dev->did.dev_id, 0); + + if (result) { + pr_debug("%s:%d: lv1_open_device failed (%d)\n", + __func__, __LINE__, result); + result = -EACCES; + goto clean_none; + } + + if (dev->d_region->did.bus_id) { + result = ps3_dma_region_create(dev->d_region); + + if (result) { + pr_debug("%s:%d: ps3_dma_region_create failed (%d)\n", + __func__, __LINE__, result); + BUG_ON("check region type"); + result = -EINVAL; + goto clean_device; + } + } + + BUG_ON(!drv); + + if (drv->probe) + result = drv->probe(dev); + else + pr_info("%s:%d: %s no probe method\n", __func__, __LINE__, + dev->core.bus_id); + + if (result) { + pr_debug("%s:%d: drv->probe failed\n", __func__, __LINE__); + goto clean_dma; + } + + return result; + +clean_dma: + ps3_dma_region_free(dev->d_region); +clean_device: + lv1_close_device(dev->did.bus_id, dev->did.dev_id); +clean_none: + return result; +} + +static int ps3_system_bus_remove(struct device *_dev) +{ + struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev); + struct ps3_system_bus_driver *drv = + to_ps3_system_bus_driver(_dev->driver); + + if (drv->remove) + drv->remove(dev); + else + pr_info("%s:%d: %s no remove method\n", __func__, __LINE__, + dev->core.bus_id); + + ps3_dma_region_free(dev->d_region); + ps3_free_mmio_region(dev->m_region); + lv1_close_device(dev->did.bus_id, dev->did.dev_id); + + return 0; +} + +struct bus_type ps3_system_bus_type = { + .name = "ps3_system_bus", + .match = ps3_system_bus_match, + .probe = ps3_system_bus_probe, + .remove = ps3_system_bus_remove, +}; + +int __init ps3_system_bus_init(void) +{ + int result; + + if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) + return 0; + + result = bus_register(&ps3_system_bus_type); + BUG_ON(result); + return result; +} + +core_initcall(ps3_system_bus_init); + +/* Allocates a contiguous real buffer and creates mappings over it. + * Returns the virtual address of the buffer and sets dma_handle + * to the dma address (mapping) of the first page. + */ + +static void * ps3_alloc_coherent(struct device *_dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag) +{ + int result; + struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev); + unsigned long virt_addr; + + BUG_ON(!dev->d_region->bus_addr); + + flag &= ~(__GFP_DMA | __GFP_HIGHMEM); + flag |= __GFP_ZERO; + + virt_addr = __get_free_pages(flag, get_order(size)); + + if (!virt_addr) { + pr_debug("%s:%d: get_free_pages failed\n", __func__, __LINE__); + goto clean_none; + } + + result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle); + + if (result) { + pr_debug("%s:%d: ps3_dma_map failed (%d)\n", + __func__, __LINE__, result); + BUG_ON("check region type"); + goto clean_alloc; + } + + return (void*)virt_addr; + +clean_alloc: + free_pages(virt_addr, get_order(size)); +clean_none: + dma_handle = NULL; + return NULL; +} + +static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr, + dma_addr_t dma_handle) +{ + struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev); + + ps3_dma_unmap(dev->d_region, dma_handle, size); + free_pages((unsigned long)vaddr, get_order(size)); +} + +/* Creates TCEs for a user provided buffer. The user buffer must be + * contiguous real kernel storage (not vmalloc). The address of the buffer + * passed here is the kernel (virtual) address of the buffer. The buffer + * need not be page aligned, the dma_addr_t returned will point to the same + * byte within the page as vaddr. + */ + +static dma_addr_t ps3_map_single(struct device *_dev, void *ptr, size_t size, + enum dma_data_direction direction) +{ + struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev); + int result; + unsigned long bus_addr; + + result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size, + &bus_addr); + + if (result) { + pr_debug("%s:%d: ps3_dma_map failed (%d)\n", + __func__, __LINE__, result); + } + + return bus_addr; +} + +static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr, + size_t size, enum dma_data_direction direction) +{ + struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev); + int result; + + result = ps3_dma_unmap(dev->d_region, dma_addr, size); + + if (result) { + pr_debug("%s:%d: ps3_dma_unmap failed (%d)\n", + __func__, __LINE__, result); + } +} + +static int ps3_map_sg(struct device *_dev, struct scatterlist *sg, int nents, + enum dma_data_direction direction) +{ +#if defined(CONFIG_PS3_DYNAMIC_DMA) + BUG_ON("do"); +#endif + return 0; +} + +static void ps3_unmap_sg(struct device *_dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) +{ +#if defined(CONFIG_PS3_DYNAMIC_DMA) + BUG_ON("do"); +#endif +} + +static int ps3_dma_supported(struct device *_dev, u64 mask) +{ + return 1; +} + +static struct dma_mapping_ops ps3_dma_ops = { + .alloc_coherent = ps3_alloc_coherent, + .free_coherent = ps3_free_coherent, + .map_single = ps3_map_single, + .unmap_single = ps3_unmap_single, + .map_sg = ps3_map_sg, + .unmap_sg = ps3_unmap_sg, + .dma_supported = ps3_dma_supported +}; + +/** + * ps3_system_bus_release_device - remove a device from the system bus + */ + +static void ps3_system_bus_release_device(struct device *_dev) +{ + struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev); + kfree(dev); +} + +/** + * ps3_system_bus_device_register - add a device to the system bus + * + * ps3_system_bus_device_register() expects the dev object to be allocated + * dynamically by the caller. The system bus takes ownership of the dev + * object and frees the object in ps3_system_bus_release_device(). + */ + +int ps3_system_bus_device_register(struct ps3_system_bus_device *dev) +{ + int result; + static unsigned int dev_count = 1; + + dev->core.parent = NULL; + dev->core.bus = &ps3_system_bus_type; + dev->core.release = ps3_system_bus_release_device; + + dev->core.archdata.of_node = NULL; + dev->core.archdata.dma_ops = &ps3_dma_ops; + dev->core.archdata.numa_node = 0; + + snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), "sb_%02x", + dev_count++); + + pr_debug("%s:%d add %s\n", __func__, __LINE__, dev->core.bus_id); + + result = device_register(&dev->core); + return result; +} + +EXPORT_SYMBOL_GPL(ps3_system_bus_device_register); + +int ps3_system_bus_driver_register(struct ps3_system_bus_driver *drv) +{ + int result; + + drv->core.bus = &ps3_system_bus_type; + + result = driver_register(&drv->core); + return result; +} + +EXPORT_SYMBOL_GPL(ps3_system_bus_driver_register); + +void ps3_system_bus_driver_unregister(struct ps3_system_bus_driver *drv) +{ + driver_unregister(&drv->core); +} + +EXPORT_SYMBOL_GPL(ps3_system_bus_driver_unregister); diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 79ffef6..a2cef57 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -1264,15 +1264,21 @@ __dasd_check_expire(struct dasd_device * device) if (list_empty(&device->ccw_queue)) return; cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, list); - if (cqr->status == DASD_CQR_IN_IO && cqr->expires != 0) { - if (time_after_eq(jiffies, cqr->expires + cqr->starttime)) { + if ((cqr->status == DASD_CQR_IN_IO && cqr->expires != 0) && + (time_after_eq(jiffies, cqr->expires + cqr->starttime))) { + if (device->discipline->term_IO(cqr) != 0) { + /* Hmpf, try again in 5 sec */ + dasd_set_timer(device, 5*HZ); + DEV_MESSAGE(KERN_ERR, device, + "internal error - timeout (%is) expired " + "for cqr %p, termination failed, " + "retrying in 5s", + (cqr->expires/HZ), cqr); + } else { DEV_MESSAGE(KERN_ERR, device, "internal error - timeout (%is) expired " "for cqr %p (%i retries left)", (cqr->expires/HZ), cqr, cqr->retries); - if (device->discipline->term_IO(cqr) != 0) - /* Hmpf, try again in 1/10 sec */ - dasd_set_timer(device, 10); } } } diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 91cf971..17fdd8c 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -684,21 +684,26 @@ dasd_ro_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct dasd_devmap *devmap; - int ro_flag; + int val; + char *endp; devmap = dasd_devmap_from_cdev(to_ccwdev(dev)); if (IS_ERR(devmap)) return PTR_ERR(devmap); - ro_flag = buf[0] == '1'; + + val = simple_strtoul(buf, &endp, 0); + if (((endp + 1) < (buf + count)) || (val > 1)) + return -EINVAL; + spin_lock(&dasd_devmap_lock); - if (ro_flag) + if (val) devmap->features |= DASD_FEATURE_READONLY; else devmap->features &= ~DASD_FEATURE_READONLY; if (devmap->device) devmap->device->features = devmap->features; if (devmap->device && devmap->device->gdp) - set_disk_ro(devmap->device->gdp, ro_flag); + set_disk_ro(devmap->device->gdp, val); spin_unlock(&dasd_devmap_lock); return count; } @@ -729,17 +734,22 @@ dasd_use_diag_store(struct device *dev, struct device_attribute *attr, { struct dasd_devmap *devmap; ssize_t rc; - int use_diag; + int val; + char *endp; devmap = dasd_devmap_from_cdev(to_ccwdev(dev)); if (IS_ERR(devmap)) return PTR_ERR(devmap); - use_diag = buf[0] == '1'; + + val = simple_strtoul(buf, &endp, 0); + if (((endp + 1) < (buf + count)) || (val > 1)) + return -EINVAL; + spin_lock(&dasd_devmap_lock); /* Changing diag discipline flag is only allowed in offline state. */ rc = count; if (!devmap->device) { - if (use_diag) + if (val) devmap->features |= DASD_FEATURE_USEDIAG; else devmap->features &= ~DASD_FEATURE_USEDIAG; @@ -854,14 +864,20 @@ dasd_eer_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct dasd_devmap *devmap; - int rc; + int val, rc; + char *endp; devmap = dasd_devmap_from_cdev(to_ccwdev(dev)); if (IS_ERR(devmap)) return PTR_ERR(devmap); if (!devmap->device) - return count; - if (buf[0] == '1') { + return -ENODEV; + + val = simple_strtoul(buf, &endp, 0); + if (((endp + 1) < (buf + count)) || (val > 1)) + return -EINVAL; + + if (val) { rc = dasd_eer_enable(devmap->device); if (rc) return rc; diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index d7de175d..c9321b9 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -299,14 +299,14 @@ raw3215_timeout(unsigned long __data) struct raw3215_info *raw = (struct raw3215_info *) __data; unsigned long flags; - spin_lock_irqsave(raw->lock, flags); + spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); if (raw->flags & RAW3215_TIMER_RUNS) { del_timer(&raw->timer); raw->flags &= ~RAW3215_TIMER_RUNS; raw3215_mk_write_req(raw); raw3215_start_io(raw); } - spin_unlock_irqrestore(raw->lock, flags); + spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); } /* @@ -355,10 +355,10 @@ raw3215_tasklet(void *data) unsigned long flags; raw = (struct raw3215_info *) data; - spin_lock_irqsave(raw->lock, flags); + spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); raw3215_mk_write_req(raw); raw3215_try_io(raw); - spin_unlock_irqrestore(raw->lock, flags); + spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); /* Check for pending message from raw3215_irq */ if (raw->message != NULL) { printk(raw->message, raw->msg_dstat, raw->msg_cstat); @@ -512,9 +512,9 @@ raw3215_make_room(struct raw3215_info *raw, unsigned int length) if (RAW3215_BUFFER_SIZE - raw->count >= length) break; /* there might be another cpu waiting for the lock */ - spin_unlock(raw->lock); + spin_unlock(get_ccwdev_lock(raw->cdev)); udelay(100); - spin_lock(raw->lock); + spin_lock(get_ccwdev_lock(raw->cdev)); } } @@ -528,7 +528,7 @@ raw3215_write(struct raw3215_info *raw, const char *str, unsigned int length) int c, count; while (length > 0) { - spin_lock_irqsave(raw->lock, flags); + spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); count = (length > RAW3215_BUFFER_SIZE) ? RAW3215_BUFFER_SIZE : length; length -= count; @@ -555,7 +555,7 @@ raw3215_write(struct raw3215_info *raw, const char *str, unsigned int length) /* start or queue request */ raw3215_try_io(raw); } - spin_unlock_irqrestore(raw->lock, flags); + spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); } } @@ -568,7 +568,7 @@ raw3215_putchar(struct raw3215_info *raw, unsigned char ch) unsigned long flags; unsigned int length, i; - spin_lock_irqsave(raw->lock, flags); + spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); if (ch == '\t') { length = TAB_STOP_SIZE - (raw->line_pos%TAB_STOP_SIZE); raw->line_pos += length; @@ -592,7 +592,7 @@ raw3215_putchar(struct raw3215_info *raw, unsigned char ch) /* start or queue request */ raw3215_try_io(raw); } - spin_unlock_irqrestore(raw->lock, flags); + spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); } /* @@ -604,13 +604,13 @@ raw3215_flush_buffer(struct raw3215_info *raw) { unsigned long flags; - spin_lock_irqsave(raw->lock, flags); + spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); if (raw->count > 0) { raw->flags |= RAW3215_FLUSHING; raw3215_try_io(raw); raw->flags &= ~RAW3215_FLUSHING; } - spin_unlock_irqrestore(raw->lock, flags); + spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); } /* @@ -625,9 +625,9 @@ raw3215_startup(struct raw3215_info *raw) return 0; raw->line_pos = 0; raw->flags |= RAW3215_ACTIVE; - spin_lock_irqsave(raw->lock, flags); + spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); raw3215_try_io(raw); - spin_unlock_irqrestore(raw->lock, flags); + spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); return 0; } @@ -644,21 +644,21 @@ raw3215_shutdown(struct raw3215_info *raw) if (!(raw->flags & RAW3215_ACTIVE) || (raw->flags & RAW3215_FIXED)) return; /* Wait for outstanding requests, then free irq */ - spin_lock_irqsave(raw->lock, flags); + spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); if ((raw->flags & RAW3215_WORKING) || raw->queued_write != NULL || raw->queued_read != NULL) { raw->flags |= RAW3215_CLOSING; add_wait_queue(&raw->empty_wait, &wait); set_current_state(TASK_INTERRUPTIBLE); - spin_unlock_irqrestore(raw->lock, flags); + spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); schedule(); - spin_lock_irqsave(raw->lock, flags); + spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); remove_wait_queue(&raw->empty_wait, &wait); set_current_state(TASK_RUNNING); raw->flags &= ~(RAW3215_ACTIVE | RAW3215_CLOSING); } - spin_unlock_irqrestore(raw->lock, flags); + spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); } static int @@ -686,7 +686,6 @@ raw3215_probe (struct ccw_device *cdev) } raw->cdev = cdev; - raw->lock = get_ccwdev_lock(cdev); raw->inbuf = (char *) raw + sizeof(struct raw3215_info); memset(raw, 0, sizeof(struct raw3215_info)); raw->buffer = (char *) kmalloc(RAW3215_BUFFER_SIZE, @@ -809,9 +808,9 @@ con3215_unblank(void) unsigned long flags; raw = raw3215[0]; /* console 3215 is the first one */ - spin_lock_irqsave(raw->lock, flags); + spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); raw3215_make_room(raw, RAW3215_BUFFER_SIZE); - spin_unlock_irqrestore(raw->lock, flags); + spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); } static int __init @@ -873,7 +872,6 @@ con3215_init(void) raw->buffer = (char *) alloc_bootmem_low(RAW3215_BUFFER_SIZE); raw->inbuf = (char *) alloc_bootmem_low(RAW3215_INBUF_SIZE); raw->cdev = cdev; - raw->lock = get_ccwdev_lock(cdev); cdev->dev.driver_data = raw; cdev->handler = raw3215_irq; @@ -1066,10 +1064,10 @@ tty3215_unthrottle(struct tty_struct * tty) raw = (struct raw3215_info *) tty->driver_data; if (raw->flags & RAW3215_THROTTLED) { - spin_lock_irqsave(raw->lock, flags); + spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); raw->flags &= ~RAW3215_THROTTLED; raw3215_try_io(raw); - spin_unlock_irqrestore(raw->lock, flags); + spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); } } @@ -1096,10 +1094,10 @@ tty3215_start(struct tty_struct *tty) raw = (struct raw3215_info *) tty->driver_data; if (raw->flags & RAW3215_STOPPED) { - spin_lock_irqsave(raw->lock, flags); + spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); raw->flags &= ~RAW3215_STOPPED; raw3215_try_io(raw); - spin_unlock_irqrestore(raw->lock, flags); + spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); } } diff --git a/drivers/s390/char/sclp_quiesce.c b/drivers/s390/char/sclp_quiesce.c index 32004aa..ffa9282 100644 --- a/drivers/s390/char/sclp_quiesce.c +++ b/drivers/s390/char/sclp_quiesce.c @@ -19,52 +19,17 @@ #include "sclp.h" - -#ifdef CONFIG_SMP -/* Signal completion of shutdown process. All CPUs except the first to enter - * this function: go to stopped state. First CPU: wait until all other - * CPUs are in stopped or check stop state. Afterwards, load special PSW - * to indicate completion. */ -static void -do_load_quiesce_psw(void * __unused) -{ - static atomic_t cpuid = ATOMIC_INIT(-1); - psw_t quiesce_psw; - int cpu; - - if (atomic_cmpxchg(&cpuid, -1, smp_processor_id()) != -1) - signal_processor(smp_processor_id(), sigp_stop); - /* Wait for all other cpus to enter stopped state */ - for_each_online_cpu(cpu) { - if (cpu == smp_processor_id()) - continue; - while(!smp_cpu_not_running(cpu)) - cpu_relax(); - } - /* Quiesce the last cpu with the special psw */ - quiesce_psw.mask = PSW_BASE_BITS | PSW_MASK_WAIT; - quiesce_psw.addr = 0xfff; - __load_psw(quiesce_psw); -} - -/* Shutdown handler. Perform shutdown function on all CPUs. */ -static void -do_machine_quiesce(void) -{ - on_each_cpu(do_load_quiesce_psw, NULL, 0, 0); -} -#else /* Shutdown handler. Signal completion of shutdown by loading special PSW. */ static void do_machine_quiesce(void) { psw_t quiesce_psw; + smp_send_stop(); quiesce_psw.mask = PSW_BASE_BITS | PSW_MASK_WAIT; quiesce_psw.addr = 0xfff; __load_psw(quiesce_psw); } -#endif /* Handler for quiesce event. Start shutdown procedure. */ static void diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 2d78f0f..dbfb77b 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -251,6 +251,8 @@ s390_subchannel_remove_chpid(struct device *dev, void *data) cc = cio_clear(sch); if (cc == -ENODEV) goto out_unreg; + /* Request retry of internal operation. */ + device_set_intretry(sch); /* Call handler. */ if (sch->driver && sch->driver->termination) sch->driver->termination(&sch->dev); @@ -711,9 +713,6 @@ static inline int check_for_io_on_path(struct subchannel *sch, int index) { int cc; - if (!device_is_online(sch)) - /* cio could be doing I/O. */ - return 0; cc = stsch(sch->schid, &sch->schib); if (cc) return 0; @@ -722,6 +721,26 @@ static inline int check_for_io_on_path(struct subchannel *sch, int index) return 0; } +static void terminate_internal_io(struct subchannel *sch) +{ + if (cio_clear(sch)) { + /* Recheck device in case clear failed. */ + sch->lpm = 0; + if (device_trigger_verify(sch) != 0) { + if(css_enqueue_subchannel_slow(sch->schid)) { + css_clear_subchannel_slow_list(); + need_rescan = 1; + } + } + return; + } + /* Request retry of internal operation. */ + device_set_intretry(sch); + /* Call handler. */ + if (sch->driver && sch->driver->termination) + sch->driver->termination(&sch->dev); +} + static inline void __s390_subchannel_vary_chpid(struct subchannel *sch, __u8 chpid, int on) { @@ -744,20 +763,26 @@ __s390_subchannel_vary_chpid(struct subchannel *sch, __u8 chpid, int on) device_trigger_reprobe(sch); else if (sch->driver && sch->driver->verify) sch->driver->verify(&sch->dev); - } else { - sch->opm &= ~(0x80 >> chp); - sch->lpm &= ~(0x80 >> chp); - if (check_for_io_on_path(sch, chp)) + break; + } + sch->opm &= ~(0x80 >> chp); + sch->lpm &= ~(0x80 >> chp); + if (check_for_io_on_path(sch, chp)) { + if (device_is_online(sch)) /* Path verification is done after killing. */ device_kill_io(sch); - else if (!sch->lpm) { + else + /* Kill and retry internal I/O. */ + terminate_internal_io(sch); + } else if (!sch->lpm) { + if (device_trigger_verify(sch) != 0) { if (css_enqueue_subchannel_slow(sch->schid)) { css_clear_subchannel_slow_list(); need_rescan = 1; } - } else if (sch->driver && sch->driver->verify) - sch->driver->verify(&sch->dev); - } + } + } else if (sch->driver && sch->driver->verify) + sch->driver->verify(&sch->dev); break; } spin_unlock_irqrestore(&sch->lock, flags); @@ -1465,41 +1490,6 @@ chsc_get_chp_desc(struct subchannel *sch, int chp_no) return desc; } -static int reset_channel_path(struct channel_path *chp) -{ - int cc; - - cc = rchp(chp->id); - switch (cc) { - case 0: - return 0; - case 2: - return -EBUSY; - default: - return -ENODEV; - } -} - -static void reset_channel_paths_css(struct channel_subsystem *css) -{ - int i; - - for (i = 0; i <= __MAX_CHPID; i++) { - if (css->chps[i]) - reset_channel_path(css->chps[i]); - } -} - -void cio_reset_channel_paths(void) -{ - int i; - - for (i = 0; i <= __MAX_CSSID; i++) { - if (css[i] && css[i]->valid) - reset_channel_paths_css(css[i]); - } -} - static int __init chsc_alloc_sei_area(void) { diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 8936e46..20aee27 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -21,6 +21,7 @@ #include <asm/irq.h> #include <asm/irq_regs.h> #include <asm/setup.h> +#include <asm/reset.h> #include "airq.h" #include "cio.h" #include "css.h" @@ -28,6 +29,7 @@ #include "ioasm.h" #include "blacklist.h" #include "cio_debug.h" +#include "../s390mach.h" debug_info_t *cio_debug_msg_id; debug_info_t *cio_debug_trace_id; @@ -841,26 +843,12 @@ __clear_subchannel_easy(struct subchannel_id schid) return -EBUSY; } -struct sch_match_id { - struct subchannel_id schid; - struct ccw_dev_id devid; - int rc; -}; - -static int __shutdown_subchannel_easy_and_match(struct subchannel_id schid, - void *data) +static int __shutdown_subchannel_easy(struct subchannel_id schid, void *data) { struct schib schib; - struct sch_match_id *match_id = data; if (stsch_err(schid, &schib)) return -ENXIO; - if (match_id && schib.pmcw.dnv && - (schib.pmcw.dev == match_id->devid.devno) && - (schid.ssid == match_id->devid.ssid)) { - match_id->schid = schid; - match_id->rc = 0; - } if (!schib.pmcw.ena) return 0; switch(__disable_subchannel_easy(schid, &schib)) { @@ -876,27 +864,111 @@ static int __shutdown_subchannel_easy_and_match(struct subchannel_id schid, return 0; } -static int clear_all_subchannels_and_match(struct ccw_dev_id *devid, - struct subchannel_id *schid) +static atomic_t chpid_reset_count; + +static void s390_reset_chpids_mcck_handler(void) +{ + struct crw crw; + struct mci *mci; + + /* Check for pending channel report word. */ + mci = (struct mci *)&S390_lowcore.mcck_interruption_code; + if (!mci->cp) + return; + /* Process channel report words. */ + while (stcrw(&crw) == 0) { + /* Check for responses to RCHP. */ + if (crw.slct && crw.rsc == CRW_RSC_CPATH) + atomic_dec(&chpid_reset_count); + } +} + +#define RCHP_TIMEOUT (30 * USEC_PER_SEC) +static void css_reset(void) +{ + int i, ret; + unsigned long long timeout; + + /* Reset subchannels. */ + for_each_subchannel(__shutdown_subchannel_easy, NULL); + /* Reset channel paths. */ + s390_reset_mcck_handler = s390_reset_chpids_mcck_handler; + /* Enable channel report machine checks. */ + __ctl_set_bit(14, 28); + /* Temporarily reenable machine checks. */ + local_mcck_enable(); + for (i = 0; i <= __MAX_CHPID; i++) { + ret = rchp(i); + if ((ret == 0) || (ret == 2)) + /* + * rchp either succeeded, or another rchp is already + * in progress. In either case, we'll get a crw. + */ + atomic_inc(&chpid_reset_count); + } + /* Wait for machine check for all channel paths. */ + timeout = get_clock() + (RCHP_TIMEOUT << 12); + while (atomic_read(&chpid_reset_count) != 0) { + if (get_clock() > timeout) + break; + cpu_relax(); + } + /* Disable machine checks again. */ + local_mcck_disable(); + /* Disable channel report machine checks. */ + __ctl_clear_bit(14, 28); + s390_reset_mcck_handler = NULL; +} + +static struct reset_call css_reset_call = { + .fn = css_reset, +}; + +static int __init init_css_reset_call(void) +{ + atomic_set(&chpid_reset_count, 0); + register_reset_call(&css_reset_call); + return 0; +} + +arch_initcall(init_css_reset_call); + +struct sch_match_id { + struct subchannel_id schid; + struct ccw_dev_id devid; + int rc; +}; + +static int __reipl_subchannel_match(struct subchannel_id schid, void *data) +{ + struct schib schib; + struct sch_match_id *match_id = data; + + if (stsch_err(schid, &schib)) + return -ENXIO; + if (schib.pmcw.dnv && + (schib.pmcw.dev == match_id->devid.devno) && + (schid.ssid == match_id->devid.ssid)) { + match_id->schid = schid; + match_id->rc = 0; + return 1; + } + return 0; +} + +static int reipl_find_schid(struct ccw_dev_id *devid, + struct subchannel_id *schid) { struct sch_match_id match_id; match_id.devid = *devid; match_id.rc = -ENODEV; - local_irq_disable(); - for_each_subchannel(__shutdown_subchannel_easy_and_match, &match_id); + for_each_subchannel(__reipl_subchannel_match, &match_id); if (match_id.rc == 0) *schid = match_id.schid; return match_id.rc; } - -void clear_all_subchannels(void) -{ - local_irq_disable(); - for_each_subchannel(__shutdown_subchannel_easy_and_match, NULL); -} - extern void do_reipl_asm(__u32 schid); /* Make sure all subchannels are quiet before we re-ipl an lpar. */ @@ -904,9 +976,9 @@ void reipl_ccw_dev(struct ccw_dev_id *devid) { struct subchannel_id schid; - if (clear_all_subchannels_and_match(devid, &schid)) + s390_reset_system(); + if (reipl_find_schid(devid, &schid) != 0) panic("IPL Device not found\n"); - cio_reset_channel_paths(); do_reipl_asm(*((__u32*)&schid)); } diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index 4c2ff83..9ff064e 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -94,6 +94,7 @@ struct ccw_device_private { unsigned int donotify:1; /* call notify function */ unsigned int recog_done:1; /* dev. recog. complete */ unsigned int fake_irb:1; /* deliver faked irb */ + unsigned int intretry:1; /* retry internal operation */ } __attribute__((packed)) flags; unsigned long intparm; /* user interruption parameter */ struct qdio_irq *qdio_data; @@ -171,6 +172,8 @@ void device_trigger_reprobe(struct subchannel *); /* Helper functions for vary on/off. */ int device_is_online(struct subchannel *); void device_kill_io(struct subchannel *); +void device_set_intretry(struct subchannel *sch); +int device_trigger_verify(struct subchannel *sch); /* Machine check helper function. */ void device_kill_pending_timer(struct subchannel *); diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 39c98f9..d3d3716 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -687,8 +687,20 @@ io_subchannel_register(void *data) cdev = data; sch = to_subchannel(cdev->dev.parent); + /* + * io_subchannel_register() will also be called after device + * recognition has been done for a boxed device (which will already + * be registered). We need to reprobe since we may now have sense id + * information. + */ if (klist_node_attached(&cdev->dev.knode_parent)) { - bus_rescan_devices(&ccw_bus_type); + if (!cdev->drv) { + ret = device_reprobe(&cdev->dev); + if (ret) + /* We can't do much here. */ + dev_info(&cdev->dev, "device_reprobe() returned" + " %d\n", ret); + } goto out; } /* make it known to the system */ @@ -948,6 +960,9 @@ io_subchannel_ioterm(struct device *dev) cdev = dev->driver_data; if (!cdev) return; + /* Internal I/O will be retried by the interrupt handler. */ + if (cdev->private->flags.intretry) + return; cdev->private->state = DEV_STATE_CLEAR_VERIFY; if (cdev->handler) cdev->handler(cdev, cdev->private->intparm, diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index de3d085..09c7672 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -59,6 +59,27 @@ device_set_disconnected(struct subchannel *sch) cdev->private->state = DEV_STATE_DISCONNECTED; } +void device_set_intretry(struct subchannel *sch) +{ + struct ccw_device *cdev; + + cdev = sch->dev.driver_data; + if (!cdev) + return; + cdev->private->flags.intretry = 1; +} + +int device_trigger_verify(struct subchannel *sch) +{ + struct ccw_device *cdev; + + cdev = sch->dev.driver_data; + if (!cdev || !cdev->online) + return -EINVAL; + dev_fsm_event(cdev, DEV_EVENT_VERIFY); + return 0; +} + /* * Timeout function. It just triggers a DEV_EVENT_TIMEOUT. */ @@ -893,6 +914,12 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event) * had killed the original request. */ if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC | SCSW_FCTL_HALT_FUNC)) { + /* Retry Basic Sense if requested. */ + if (cdev->private->flags.intretry) { + cdev->private->flags.intretry = 0; + ccw_device_do_sense(cdev, irb); + return; + } cdev->private->flags.dosense = 0; memset(&cdev->private->irb, 0, sizeof(struct irb)); ccw_device_accumulate_irb(cdev, irb); diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c index a74785b..f172759 100644 --- a/drivers/s390/cio/device_id.c +++ b/drivers/s390/cio/device_id.c @@ -191,6 +191,8 @@ __ccw_device_sense_id_start(struct ccw_device *cdev) if ((sch->opm & cdev->private->imask) != 0 && cdev->private->iretry > 0) { cdev->private->iretry--; + /* Reset internal retry indication. */ + cdev->private->flags.intretry = 0; ret = cio_start (sch, cdev->private->iccws, cdev->private->imask); /* ret is 0, -EBUSY, -EACCES or -ENODEV */ @@ -237,8 +239,14 @@ ccw_device_check_sense_id(struct ccw_device *cdev) return 0; /* Success */ } /* Check the error cases. */ - if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) + if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { + /* Retry Sense ID if requested. */ + if (cdev->private->flags.intretry) { + cdev->private->flags.intretry = 0; + return -EAGAIN; + } return -ETIME; + } if (irb->esw.esw0.erw.cons && (irb->ecw[0] & SNS0_CMD_REJECT)) { /* * if the device doesn't support the SenseID diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c index 2975ce8..cb1879a 100644 --- a/drivers/s390/cio/device_pgid.c +++ b/drivers/s390/cio/device_pgid.c @@ -71,6 +71,8 @@ __ccw_device_sense_pgid_start(struct ccw_device *cdev) ccw->cda = (__u32) __pa (&cdev->private->pgid[i]); if (cdev->private->iretry > 0) { cdev->private->iretry--; + /* Reset internal retry indication. */ + cdev->private->flags.intretry = 0; ret = cio_start (sch, cdev->private->iccws, cdev->private->imask); /* ret is 0, -EBUSY, -EACCES or -ENODEV */ @@ -122,8 +124,14 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev) sch = to_subchannel(cdev->dev.parent); irb = &cdev->private->irb; - if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) + if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { + /* Retry Sense PGID if requested. */ + if (cdev->private->flags.intretry) { + cdev->private->flags.intretry = 0; + return -EAGAIN; + } return -ETIME; + } if (irb->esw.esw0.erw.cons && (irb->ecw[0]&(SNS0_CMD_REJECT|SNS0_INTERVENTION_REQ))) { /* @@ -253,6 +261,8 @@ __ccw_device_do_pgid(struct ccw_device *cdev, __u8 func) ret = -EACCES; if (cdev->private->iretry > 0) { cdev->private->iretry--; + /* Reset internal retry indication. */ + cdev->private->flags.intretry = 0; ret = cio_start (sch, cdev->private->iccws, cdev->private->imask); /* We expect an interrupt in case of success or busy @@ -293,6 +303,8 @@ static int __ccw_device_do_nop(struct ccw_device *cdev) ret = -EACCES; if (cdev->private->iretry > 0) { cdev->private->iretry--; + /* Reset internal retry indication. */ + cdev->private->flags.intretry = 0; ret = cio_start (sch, cdev->private->iccws, cdev->private->imask); /* We expect an interrupt in case of success or busy @@ -321,8 +333,14 @@ __ccw_device_check_pgid(struct ccw_device *cdev) sch = to_subchannel(cdev->dev.parent); irb = &cdev->private->irb; - if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) + if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { + /* Retry Set PGID if requested. */ + if (cdev->private->flags.intretry) { + cdev->private->flags.intretry = 0; + return -EAGAIN; + } return -ETIME; + } if (irb->esw.esw0.erw.cons) { if (irb->ecw[0] & SNS0_CMD_REJECT) return -EOPNOTSUPP; @@ -360,8 +378,14 @@ static int __ccw_device_check_nop(struct ccw_device *cdev) sch = to_subchannel(cdev->dev.parent); irb = &cdev->private->irb; - if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) + if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { + /* Retry NOP if requested. */ + if (cdev->private->flags.intretry) { + cdev->private->flags.intretry = 0; + return -EAGAIN; + } return -ETIME; + } if (irb->scsw.cc == 3) { CIO_MSG_EVENT(2, "NOP - Device %04x on Subchannel 0.%x.%04x," " lpm %02X, became 'not operational'\n", diff --git a/drivers/s390/cio/device_status.c b/drivers/s390/cio/device_status.c index 3f7cbce..bdcf930 100644 --- a/drivers/s390/cio/device_status.c +++ b/drivers/s390/cio/device_status.c @@ -319,6 +319,9 @@ ccw_device_do_sense(struct ccw_device *cdev, struct irb *irb) sch->sense_ccw.count = SENSE_MAX_COUNT; sch->sense_ccw.flags = CCW_FLAG_SLI; + /* Reset internal retry indication. */ + cdev->private->flags.intretry = 0; + return cio_start (sch, &sch->sense_ccw, 0xff); } diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c index 476aa1d..8d5fa1b 100644 --- a/drivers/s390/cio/qdio.c +++ b/drivers/s390/cio/qdio.c @@ -481,7 +481,7 @@ qdio_stop_polling(struct qdio_q *q) unsigned char state = 0; struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr; - if (!atomic_swap(&q->polling,0)) + if (!atomic_xchg(&q->polling,0)) return 1; QDIO_DBF_TEXT4(0,trace,"stoppoll"); @@ -1964,8 +1964,8 @@ qdio_irq_check_sense(struct subchannel_id schid, struct irb *irb) QDIO_DBF_HEX0(0,sense,irb,QDIO_DBF_SENSE_LEN); QDIO_PRINT_WARN("sense data available on qdio channel.\n"); - HEXDUMP16(WARN,"irb: ",irb); - HEXDUMP16(WARN,"sense data: ",irb->ecw); + QDIO_HEXDUMP16(WARN,"irb: ",irb); + QDIO_HEXDUMP16(WARN,"sense data: ",irb->ecw); } } @@ -3425,7 +3425,7 @@ do_qdio_handle_inbound(struct qdio_q *q, unsigned int callflags, if ((used_elements+count==QDIO_MAX_BUFFERS_PER_Q)&& (callflags&QDIO_FLAG_UNDER_INTERRUPT)) - atomic_swap(&q->polling,0); + atomic_xchg(&q->polling,0); if (used_elements) return; diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index 49bb9e3..42927c1 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -236,7 +236,7 @@ enum qdio_irq_states { #define QDIO_PRINT_EMERG(x...) do { } while (0) #endif -#define HEXDUMP16(importance,header,ptr) \ +#define QDIO_HEXDUMP16(importance,header,ptr) \ QDIO_PRINT_##importance(header "%02x %02x %02x %02x " \ "%02x %02x %02x %02x %02x %02x %02x %02x " \ "%02x %02x %02x %02x\n",*(((char*)ptr)), \ @@ -429,8 +429,6 @@ struct qdio_perf_stats { }; #endif /* QDIO_PERFORMANCE_STATS */ -#define atomic_swap(a,b) xchg((int*)a.counter,b) - /* unlikely as the later the better */ #define SYNC_MEMORY if (unlikely(q->siga_sync)) qdio_siga_sync_q(q) #define SYNC_MEMORY_ALL if (unlikely(q->siga_sync)) \ diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 79d89c3..6a54334 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -431,7 +431,15 @@ static int ap_uevent (struct device *dev, char **envp, int num_envp, ap_dev->device_type); if (buffer_size - length <= 0) return -ENOMEM; - envp[1] = 0; + buffer += length; + buffer_size -= length; + /* Add MODALIAS= */ + envp[1] = buffer; + length = scnprintf(buffer, buffer_size, "MODALIAS=ap:t%02X", + ap_dev->device_type); + if (buffer_size - length <= 0) + return -ENOMEM; + envp[2] = NULL; return 0; } diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index 66a8aec..08d4e47 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -54,6 +54,8 @@ #error Cannot compile lcs.c without some net devices switched on. #endif +#define PRINTK_HEADER " lcs: " + /** * initialization string for output */ @@ -120,7 +122,7 @@ lcs_alloc_channel(struct lcs_channel *channel) kzalloc(LCS_IOBUFFERSIZE, GFP_DMA | GFP_KERNEL); if (channel->iob[cnt].data == NULL) break; - channel->iob[cnt].state = BUF_STATE_EMPTY; + channel->iob[cnt].state = LCS_BUF_STATE_EMPTY; } if (cnt < LCS_NUM_BUFFS) { /* Not all io buffers could be allocated. */ @@ -236,7 +238,7 @@ lcs_setup_read_ccws(struct lcs_card *card) ((struct lcs_header *) card->read.iob[cnt].data)->offset = LCS_ILLEGAL_OFFSET; card->read.iob[cnt].callback = lcs_get_frames_cb; - card->read.iob[cnt].state = BUF_STATE_READY; + card->read.iob[cnt].state = LCS_BUF_STATE_READY; card->read.iob[cnt].count = LCS_IOBUFFERSIZE; } card->read.ccws[0].flags &= ~CCW_FLAG_PCI; @@ -247,7 +249,7 @@ lcs_setup_read_ccws(struct lcs_card *card) card->read.ccws[LCS_NUM_BUFFS].cda = (__u32) __pa(card->read.ccws); /* Setg initial state of the read channel. */ - card->read.state = CH_STATE_INIT; + card->read.state = LCS_CH_STATE_INIT; card->read.io_idx = 0; card->read.buf_idx = 0; @@ -294,7 +296,7 @@ lcs_setup_write_ccws(struct lcs_card *card) card->write.ccws[LCS_NUM_BUFFS].cda = (__u32) __pa(card->write.ccws); /* Set initial state of the write channel. */ - card->read.state = CH_STATE_INIT; + card->read.state = LCS_CH_STATE_INIT; card->write.io_idx = 0; card->write.buf_idx = 0; @@ -496,7 +498,7 @@ lcs_start_channel(struct lcs_channel *channel) channel->ccws + channel->io_idx, 0, 0, DOIO_DENY_PREFETCH | DOIO_ALLOW_SUSPEND); if (rc == 0) - channel->state = CH_STATE_RUNNING; + channel->state = LCS_CH_STATE_RUNNING; spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); if (rc) { LCS_DBF_TEXT_(4,trace,"essh%s", channel->ccwdev->dev.bus_id); @@ -520,8 +522,8 @@ lcs_clear_channel(struct lcs_channel *channel) LCS_DBF_TEXT_(4,trace,"ecsc%s", channel->ccwdev->dev.bus_id); return rc; } - wait_event(channel->wait_q, (channel->state == CH_STATE_CLEARED)); - channel->state = CH_STATE_STOPPED; + wait_event(channel->wait_q, (channel->state == LCS_CH_STATE_CLEARED)); + channel->state = LCS_CH_STATE_STOPPED; return rc; } @@ -535,11 +537,11 @@ lcs_stop_channel(struct lcs_channel *channel) unsigned long flags; int rc; - if (channel->state == CH_STATE_STOPPED) + if (channel->state == LCS_CH_STATE_STOPPED) return 0; LCS_DBF_TEXT(4,trace,"haltsch"); LCS_DBF_TEXT_(4,trace,"%s", channel->ccwdev->dev.bus_id); - channel->state = CH_STATE_INIT; + channel->state = LCS_CH_STATE_INIT; spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_halt(channel->ccwdev, (addr_t) channel); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); @@ -548,7 +550,7 @@ lcs_stop_channel(struct lcs_channel *channel) return rc; } /* Asynchronous halt initialted. Wait for its completion. */ - wait_event(channel->wait_q, (channel->state == CH_STATE_HALTED)); + wait_event(channel->wait_q, (channel->state == LCS_CH_STATE_HALTED)); lcs_clear_channel(channel); return 0; } @@ -596,8 +598,8 @@ __lcs_get_buffer(struct lcs_channel *channel) LCS_DBF_TEXT(5, trace, "_getbuff"); index = channel->io_idx; do { - if (channel->iob[index].state == BUF_STATE_EMPTY) { - channel->iob[index].state = BUF_STATE_LOCKED; + if (channel->iob[index].state == LCS_BUF_STATE_EMPTY) { + channel->iob[index].state = LCS_BUF_STATE_LOCKED; return channel->iob + index; } index = (index + 1) & (LCS_NUM_BUFFS - 1); @@ -626,7 +628,7 @@ __lcs_resume_channel(struct lcs_channel *channel) { int rc; - if (channel->state != CH_STATE_SUSPENDED) + if (channel->state != LCS_CH_STATE_SUSPENDED) return 0; if (channel->ccws[channel->io_idx].flags & CCW_FLAG_SUSPEND) return 0; @@ -636,7 +638,7 @@ __lcs_resume_channel(struct lcs_channel *channel) LCS_DBF_TEXT_(4, trace, "ersc%s", channel->ccwdev->dev.bus_id); PRINT_ERR("Error in lcs_resume_channel: rc=%d\n",rc); } else - channel->state = CH_STATE_RUNNING; + channel->state = LCS_CH_STATE_RUNNING; return rc; } @@ -670,10 +672,10 @@ lcs_ready_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer) int index, rc; LCS_DBF_TEXT(5, trace, "rdybuff"); - BUG_ON(buffer->state != BUF_STATE_LOCKED && - buffer->state != BUF_STATE_PROCESSED); + BUG_ON(buffer->state != LCS_BUF_STATE_LOCKED && + buffer->state != LCS_BUF_STATE_PROCESSED); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); - buffer->state = BUF_STATE_READY; + buffer->state = LCS_BUF_STATE_READY; index = buffer - channel->iob; /* Set length. */ channel->ccws[index].count = buffer->count; @@ -695,8 +697,8 @@ __lcs_processed_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer) int index, prev, next; LCS_DBF_TEXT(5, trace, "prcsbuff"); - BUG_ON(buffer->state != BUF_STATE_READY); - buffer->state = BUF_STATE_PROCESSED; + BUG_ON(buffer->state != LCS_BUF_STATE_READY); + buffer->state = LCS_BUF_STATE_PROCESSED; index = buffer - channel->iob; prev = (index - 1) & (LCS_NUM_BUFFS - 1); next = (index + 1) & (LCS_NUM_BUFFS - 1); @@ -704,7 +706,7 @@ __lcs_processed_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer) channel->ccws[index].flags |= CCW_FLAG_SUSPEND; channel->ccws[index].flags &= ~CCW_FLAG_PCI; /* Check the suspend bit of the previous buffer. */ - if (channel->iob[prev].state == BUF_STATE_READY) { + if (channel->iob[prev].state == LCS_BUF_STATE_READY) { /* * Previous buffer is in state ready. It might have * happened in lcs_ready_buffer that the suspend bit @@ -727,10 +729,10 @@ lcs_release_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer) unsigned long flags; LCS_DBF_TEXT(5, trace, "relbuff"); - BUG_ON(buffer->state != BUF_STATE_LOCKED && - buffer->state != BUF_STATE_PROCESSED); + BUG_ON(buffer->state != LCS_BUF_STATE_LOCKED && + buffer->state != LCS_BUF_STATE_PROCESSED); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); - buffer->state = BUF_STATE_EMPTY; + buffer->state = LCS_BUF_STATE_EMPTY; spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); } @@ -1264,7 +1266,7 @@ lcs_register_mc_addresses(void *data) netif_carrier_off(card->dev); netif_tx_disable(card->dev); wait_event(card->write.wait_q, - (card->write.state != CH_STATE_RUNNING)); + (card->write.state != LCS_CH_STATE_RUNNING)); lcs_fix_multicast_list(card); if (card->state == DEV_STATE_UP) { netif_carrier_on(card->dev); @@ -1404,7 +1406,7 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) } } /* How far in the ccw chain have we processed? */ - if ((channel->state != CH_STATE_INIT) && + if ((channel->state != LCS_CH_STATE_INIT) && (irb->scsw.fctl & SCSW_FCTL_START_FUNC)) { index = (struct ccw1 *) __va((addr_t) irb->scsw.cpa) - channel->ccws; @@ -1424,20 +1426,20 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) (irb->scsw.dstat & DEV_STAT_CHN_END) || (irb->scsw.dstat & DEV_STAT_UNIT_CHECK)) /* Mark channel as stopped. */ - channel->state = CH_STATE_STOPPED; + channel->state = LCS_CH_STATE_STOPPED; else if (irb->scsw.actl & SCSW_ACTL_SUSPENDED) /* CCW execution stopped on a suspend bit. */ - channel->state = CH_STATE_SUSPENDED; + channel->state = LCS_CH_STATE_SUSPENDED; if (irb->scsw.fctl & SCSW_FCTL_HALT_FUNC) { if (irb->scsw.cc != 0) { ccw_device_halt(channel->ccwdev, (addr_t) channel); return; } /* The channel has been stopped by halt_IO. */ - channel->state = CH_STATE_HALTED; + channel->state = LCS_CH_STATE_HALTED; } if (irb->scsw.fctl & SCSW_FCTL_CLEAR_FUNC) { - channel->state = CH_STATE_CLEARED; + channel->state = LCS_CH_STATE_CLEARED; } /* Do the rest in the tasklet. */ tasklet_schedule(&channel->irq_tasklet); @@ -1461,7 +1463,7 @@ lcs_tasklet(unsigned long data) /* Check for processed buffers. */ iob = channel->iob; buf_idx = channel->buf_idx; - while (iob[buf_idx].state == BUF_STATE_PROCESSED) { + while (iob[buf_idx].state == LCS_BUF_STATE_PROCESSED) { /* Do the callback thing. */ if (iob[buf_idx].callback != NULL) iob[buf_idx].callback(channel, iob + buf_idx); @@ -1469,12 +1471,12 @@ lcs_tasklet(unsigned long data) } channel->buf_idx = buf_idx; - if (channel->state == CH_STATE_STOPPED) + if (channel->state == LCS_CH_STATE_STOPPED) // FIXME: what if rc != 0 ?? rc = lcs_start_channel(channel); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); - if (channel->state == CH_STATE_SUSPENDED && - channel->iob[channel->io_idx].state == BUF_STATE_READY) { + if (channel->state == LCS_CH_STATE_SUSPENDED && + channel->iob[channel->io_idx].state == LCS_BUF_STATE_READY) { // FIXME: what if rc != 0 ?? rc = __lcs_resume_channel(channel); } @@ -1689,8 +1691,8 @@ lcs_detect(struct lcs_card *card) card->state = DEV_STATE_UP; } else { card->state = DEV_STATE_DOWN; - card->write.state = CH_STATE_INIT; - card->read.state = CH_STATE_INIT; + card->write.state = LCS_CH_STATE_INIT; + card->read.state = LCS_CH_STATE_INIT; } return rc; } @@ -1705,8 +1707,8 @@ lcs_stopcard(struct lcs_card *card) LCS_DBF_TEXT(3, setup, "stopcard"); - if (card->read.state != CH_STATE_STOPPED && - card->write.state != CH_STATE_STOPPED && + if (card->read.state != LCS_CH_STATE_STOPPED && + card->write.state != LCS_CH_STATE_STOPPED && card->state == DEV_STATE_UP) { lcs_clear_multicast_list(card); rc = lcs_send_stoplan(card,LCS_INITIATOR_TCPIP); @@ -1871,7 +1873,7 @@ lcs_stop_device(struct net_device *dev) netif_tx_disable(dev); dev->flags &= ~IFF_UP; wait_event(card->write.wait_q, - (card->write.state != CH_STATE_RUNNING)); + (card->write.state != LCS_CH_STATE_RUNNING)); rc = lcs_stopcard(card); if (rc) PRINT_ERR("Try it again!\n "); diff --git a/drivers/s390/net/lcs.h b/drivers/s390/net/lcs.h index b5247dc..0e1e4a0 100644 --- a/drivers/s390/net/lcs.h +++ b/drivers/s390/net/lcs.h @@ -23,11 +23,6 @@ do { \ } while (0) /** - * some more definitions for debug or output stuff - */ -#define PRINTK_HEADER " lcs: " - -/** * sysfs related stuff */ #define CARD_FROM_DEV(cdev) \ @@ -127,22 +122,22 @@ do { \ * LCS Buffer states */ enum lcs_buffer_states { - BUF_STATE_EMPTY, /* buffer is empty */ - BUF_STATE_LOCKED, /* buffer is locked, don't touch */ - BUF_STATE_READY, /* buffer is ready for read/write */ - BUF_STATE_PROCESSED, + LCS_BUF_STATE_EMPTY, /* buffer is empty */ + LCS_BUF_STATE_LOCKED, /* buffer is locked, don't touch */ + LCS_BUF_STATE_READY, /* buffer is ready for read/write */ + LCS_BUF_STATE_PROCESSED, }; /** * LCS Channel State Machine declarations */ enum lcs_channel_states { - CH_STATE_INIT, - CH_STATE_HALTED, - CH_STATE_STOPPED, - CH_STATE_RUNNING, - CH_STATE_SUSPENDED, - CH_STATE_CLEARED, + LCS_CH_STATE_INIT, + LCS_CH_STATE_HALTED, + LCS_CH_STATE_STOPPED, + LCS_CH_STATE_RUNNING, + LCS_CH_STATE_SUSPENDED, + LCS_CH_STATE_CLEARED, }; /** diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h index 821383d..53c358c 100644 --- a/drivers/s390/net/qeth.h +++ b/drivers/s390/net/qeth.h @@ -151,8 +151,6 @@ qeth_hex_dump(unsigned char *buf, size_t len) #define SENSE_RESETTING_EVENT_BYTE 1 #define SENSE_RESETTING_EVENT_FLAG 0x80 -#define atomic_swap(a,b) xchg((int *)a.counter, b) - /* * Common IO related definitions */ diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c index 8364d54..7fdc527 100644 --- a/drivers/s390/net/qeth_main.c +++ b/drivers/s390/net/qeth_main.c @@ -2982,7 +2982,7 @@ qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) */ if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || !atomic_read(&queue->set_pci_flags_count)){ - if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == + if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == QETH_OUT_Q_UNLOCKED) { /* * If we get in here, there was no action in @@ -3245,7 +3245,7 @@ qeth_free_qdio_buffers(struct qeth_card *card) int i, j; QETH_DBF_TEXT(trace, 2, "freeqdbf"); - if (atomic_swap(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == + if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == QETH_QDIO_UNINITIALIZED) return; kfree(card->qdio.in_q); @@ -4366,7 +4366,7 @@ out: if (flush_count) qeth_flush_buffers(queue, 0, start_index, flush_count); else if (!atomic_read(&queue->set_pci_flags_count)) - atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); + atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); /* * queue->state will go from LOCKED -> UNLOCKED or from * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index b5b0c2c..5c0b75b 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -25,6 +25,7 @@ #include <linux/init.h> #include <linux/module.h> +#include <linux/jiffies.h> #include <linux/err.h> #include <linux/slab.h> #include <linux/string.h> diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c index b691d3e..787a8f1 100644 --- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c +++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c @@ -282,7 +282,7 @@ void cpm_uart_freebuf(struct uart_cpm_port *pinfo) } /* Setup any dynamic params in the uart desc */ -int cpm_uart_init_portdesc(void) +int __init cpm_uart_init_portdesc(void) { #if defined(CONFIG_SERIAL_CPM_SMC1) || defined(CONFIG_SERIAL_CPM_SMC2) u32 addr; diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c index 4f80c5b..6dd579e 100644 --- a/drivers/serial/mpc52xx_uart.c +++ b/drivers/serial/mpc52xx_uart.c @@ -1,6 +1,4 @@ /* - * drivers/serial/mpc52xx_uart.c - * * Driver for the PSC of the Freescale MPC52xx PSCs configured as UARTs. * * FIXME According to the usermanual the status bits in the status register @@ -14,18 +12,20 @@ * * * Maintainer : Sylvain Munaut <tnt@246tNt.com> - * + * * Some of the code has been inspired/copied from the 2.4 code written * by Dale Farnsworth <dfarnsworth@mvista.com>. - * - * Copyright (C) 2004-2005 Sylvain Munaut <tnt@246tNt.com> + * + * Copyright (C) 2006 Secret Lab Technologies Ltd. + * Grant Likely <grant.likely@secretlab.ca> + * Copyright (C) 2004-2006 Sylvain Munaut <tnt@246tNt.com> * Copyright (C) 2003 MontaVista, Software, Inc. - * + * * This file is licensed under the terms of the GNU General Public License * version 2. This program is licensed "as is" without any warranty of any * kind, whether express or implied. */ - + /* Platform device Usage : * * Since PSCs can have multiple function, the correct driver for each one @@ -44,7 +44,24 @@ * will be mapped to. */ -#include <linux/platform_device.h> +/* OF Platform device Usage : + * + * This driver is only used for PSCs configured in uart mode. The device + * tree will have a node for each PSC in uart mode w/ device_type = "serial" + * and "mpc52xx-psc-uart" in the compatible string + * + * By default, PSC devices are enumerated in the order they are found. However + * a particular PSC number can be forces by adding 'device_no = <port#>' + * to the device node. + * + * The driver init all necessary registers to place the PSC in uart mode without + * DCD. However, the pin multiplexing aren't changed and should be set either + * by the bootloader or in the platform init code. + */ + +#undef DEBUG + +#include <linux/device.h> #include <linux/module.h> #include <linux/tty.h> #include <linux/serial.h> @@ -54,6 +71,12 @@ #include <asm/delay.h> #include <asm/io.h> +#if defined(CONFIG_PPC_MERGE) +#include <asm/of_platform.h> +#else +#include <linux/platform_device.h> +#endif + #include <asm/mpc52xx.h> #include <asm/mpc52xx_psc.h> @@ -80,6 +103,12 @@ static struct uart_port mpc52xx_uart_ports[MPC52xx_PSC_MAXNUM]; * it's cleared, then a memset(...,0,...) should be added to * the console_init */ +#if defined(CONFIG_PPC_MERGE) +/* lookup table for matching device nodes to index numbers */ +static struct device_node *mpc52xx_uart_nodes[MPC52xx_PSC_MAXNUM]; + +static void mpc52xx_uart_of_enumerate(void); +#endif #define PSC(port) ((struct mpc52xx_psc __iomem *)((port)->membase)) @@ -96,32 +125,40 @@ static irqreturn_t mpc52xx_uart_int(int irq,void *dev_id); #define uart_console(port) (0) #endif +#if defined(CONFIG_PPC_MERGE) +static struct of_device_id mpc52xx_uart_of_match[] = { + { .type = "serial", .compatible = "mpc52xx-psc-uart", }, + { .type = "serial", .compatible = "mpc5200-psc", }, /* Efika only! */ + {}, +}; +#endif + /* ======================================================================== */ /* UART operations */ /* ======================================================================== */ -static unsigned int +static unsigned int mpc52xx_uart_tx_empty(struct uart_port *port) { int status = in_be16(&PSC(port)->mpc52xx_psc_status); return (status & MPC52xx_PSC_SR_TXEMP) ? TIOCSER_TEMT : 0; } -static void +static void mpc52xx_uart_set_mctrl(struct uart_port *port, unsigned int mctrl) { /* Not implemented */ } -static unsigned int +static unsigned int mpc52xx_uart_get_mctrl(struct uart_port *port) { /* Not implemented */ return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR; } -static void +static void mpc52xx_uart_stop_tx(struct uart_port *port) { /* port->lock taken by caller */ @@ -129,7 +166,7 @@ mpc52xx_uart_stop_tx(struct uart_port *port) out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask); } -static void +static void mpc52xx_uart_start_tx(struct uart_port *port) { /* port->lock taken by caller */ @@ -137,12 +174,12 @@ mpc52xx_uart_start_tx(struct uart_port *port) out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask); } -static void +static void mpc52xx_uart_send_xchar(struct uart_port *port, char ch) { unsigned long flags; spin_lock_irqsave(&port->lock, flags); - + port->x_char = ch; if (ch) { /* Make sure tx interrupts are on */ @@ -150,7 +187,7 @@ mpc52xx_uart_send_xchar(struct uart_port *port, char ch) port->read_status_mask |= MPC52xx_PSC_IMR_TXRDY; out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask); } - + spin_unlock_irqrestore(&port->lock, flags); } @@ -178,7 +215,7 @@ mpc52xx_uart_break_ctl(struct uart_port *port, int ctl) out_8(&PSC(port)->command,MPC52xx_PSC_START_BRK); else out_8(&PSC(port)->command,MPC52xx_PSC_STOP_BRK); - + spin_unlock_irqrestore(&port->lock, flags); } @@ -197,11 +234,11 @@ mpc52xx_uart_startup(struct uart_port *port) /* Reset/activate the port, clear and enable interrupts */ out_8(&psc->command,MPC52xx_PSC_RST_RX); out_8(&psc->command,MPC52xx_PSC_RST_TX); - + out_be32(&psc->sicr,0); /* UART mode DCD ignored */ out_be16(&psc->mpc52xx_psc_clock_select, 0xdd00); /* /16 prescaler on */ - + out_8(&psc->rfcntl, 0x00); out_be16(&psc->rfalarm, 0x1ff); out_8(&psc->tfcntl, 0x07); @@ -209,10 +246,10 @@ mpc52xx_uart_startup(struct uart_port *port) port->read_status_mask |= MPC52xx_PSC_IMR_RXRDY | MPC52xx_PSC_IMR_TXRDY; out_be16(&psc->mpc52xx_psc_imr,port->read_status_mask); - + out_8(&psc->command,MPC52xx_PSC_TX_ENABLE); out_8(&psc->command,MPC52xx_PSC_RX_ENABLE); - + return 0; } @@ -220,19 +257,19 @@ static void mpc52xx_uart_shutdown(struct uart_port *port) { struct mpc52xx_psc __iomem *psc = PSC(port); - + /* Shut down the port, interrupt and all */ out_8(&psc->command,MPC52xx_PSC_RST_RX); out_8(&psc->command,MPC52xx_PSC_RST_TX); - - port->read_status_mask = 0; + + port->read_status_mask = 0; out_be16(&psc->mpc52xx_psc_imr,port->read_status_mask); /* Release interrupt */ free_irq(port->irq, port); } -static void +static void mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, struct termios *old) { @@ -241,10 +278,10 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, unsigned char mr1, mr2; unsigned short ctr; unsigned int j, baud, quot; - + /* Prepare what we're gonna write */ mr1 = 0; - + switch (new->c_cflag & CSIZE) { case CS5: mr1 |= MPC52xx_PSC_MODE_5_BITS; break; @@ -261,8 +298,8 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, MPC52xx_PSC_MODE_PARODD : MPC52xx_PSC_MODE_PAREVEN; } else mr1 |= MPC52xx_PSC_MODE_PARNONE; - - + + mr2 = 0; if (new->c_cflag & CSTOPB) @@ -276,7 +313,7 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, baud = uart_get_baud_rate(port, new, old, 0, port->uartclk/16); quot = uart_get_divisor(port, baud); ctr = quot & 0xffff; - + /* Get the lock */ spin_lock_irqsave(&port->lock, flags); @@ -290,14 +327,14 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, * boot for the console, all stuff is not yet ready to receive at that * time and that just makes the kernel oops */ /* while (j-- && mpc52xx_uart_int_rx_chars(port)); */ - while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && + while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && --j) udelay(1); if (!j) printk( KERN_ERR "mpc52xx_uart.c: " "Unable to flush RX & TX fifos in-time in set_termios." - "Some chars may have been lost.\n" ); + "Some chars may have been lost.\n" ); /* Reset the TX & RX */ out_8(&psc->command,MPC52xx_PSC_RST_RX); @@ -309,7 +346,7 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, out_8(&psc->mode,mr2); out_8(&psc->ctur,ctr >> 8); out_8(&psc->ctlr,ctr & 0xff); - + /* Reenable TX & RX */ out_8(&psc->command,MPC52xx_PSC_TX_ENABLE); out_8(&psc->command,MPC52xx_PSC_RX_ENABLE); @@ -332,7 +369,7 @@ mpc52xx_uart_release_port(struct uart_port *port) port->membase = NULL; } - release_mem_region(port->mapbase, MPC52xx_PSC_SIZE); + release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc)); } static int @@ -341,12 +378,13 @@ mpc52xx_uart_request_port(struct uart_port *port) int err; if (port->flags & UPF_IOREMAP) /* Need to remap ? */ - port->membase = ioremap(port->mapbase, MPC52xx_PSC_SIZE); + port->membase = ioremap(port->mapbase, + sizeof(struct mpc52xx_psc)); if (!port->membase) return -EINVAL; - err = request_mem_region(port->mapbase, MPC52xx_PSC_SIZE, + err = request_mem_region(port->mapbase, sizeof(struct mpc52xx_psc), "mpc52xx_psc_uart") != NULL ? 0 : -EBUSY; if (err && (port->flags & UPF_IOREMAP)) { @@ -373,7 +411,7 @@ mpc52xx_uart_verify_port(struct uart_port *port, struct serial_struct *ser) if ( (ser->irq != port->irq) || (ser->io_type != SERIAL_IO_MEM) || - (ser->baud_base != port->uartclk) || + (ser->baud_base != port->uartclk) || (ser->iomem_base != (void*)port->mapbase) || (ser->hub6 != 0 ) ) return -EINVAL; @@ -404,11 +442,11 @@ static struct uart_ops mpc52xx_uart_ops = { .verify_port = mpc52xx_uart_verify_port }; - + /* ======================================================================== */ /* Interrupt handling */ /* ======================================================================== */ - + static inline int mpc52xx_uart_int_rx_chars(struct uart_port *port) { @@ -435,11 +473,11 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port) flag = TTY_NORMAL; port->icount.rx++; - + if ( status & (MPC52xx_PSC_SR_PE | MPC52xx_PSC_SR_FE | MPC52xx_PSC_SR_RB) ) { - + if (status & MPC52xx_PSC_SR_RB) { flag = TTY_BREAK; uart_handle_break(port); @@ -464,7 +502,7 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port) } tty_flip_buffer_push(tty); - + return in_be16(&PSC(port)->mpc52xx_psc_status) & MPC52xx_PSC_SR_RXRDY; } @@ -509,25 +547,25 @@ mpc52xx_uart_int_tx_chars(struct uart_port *port) return 1; } -static irqreturn_t +static irqreturn_t mpc52xx_uart_int(int irq, void *dev_id) { struct uart_port *port = dev_id; unsigned long pass = ISR_PASS_LIMIT; unsigned int keepgoing; unsigned short status; - + spin_lock(&port->lock); - + /* While we have stuff to do, we continue */ do { /* If we don't find anything to do, we stop */ - keepgoing = 0; - + keepgoing = 0; + /* Read status */ status = in_be16(&PSC(port)->mpc52xx_psc_isr); status &= port->read_status_mask; - + /* Do we need to receive chars ? */ /* For this RX interrupts must be on and some chars waiting */ if ( status & MPC52xx_PSC_IMR_RXRDY ) @@ -537,15 +575,15 @@ mpc52xx_uart_int(int irq, void *dev_id) /* For this, TX must be ready and TX interrupt enabled */ if ( status & MPC52xx_PSC_IMR_TXRDY ) keepgoing |= mpc52xx_uart_int_tx_chars(port); - + /* Limit number of iteration */ if ( !(--pass) ) keepgoing = 0; } while (keepgoing); - + spin_unlock(&port->lock); - + return IRQ_HANDLED; } @@ -563,13 +601,18 @@ mpc52xx_console_get_options(struct uart_port *port, struct mpc52xx_psc __iomem *psc = PSC(port); unsigned char mr1; + pr_debug("mpc52xx_console_get_options(port=%p)\n", port); + /* Read the mode registers */ out_8(&psc->command,MPC52xx_PSC_SEL_MODE_REG_1); mr1 = in_8(&psc->mode); - + /* CT{U,L}R are write-only ! */ - *baud = __res.bi_baudrate ? - __res.bi_baudrate : CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD; + *baud = CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD; +#if !defined(CONFIG_PPC_MERGE) + if (__res.bi_baudrate) + *baud = __res.bi_baudrate; +#endif /* Parse them */ switch (mr1 & MPC52xx_PSC_MODE_BITS_MASK) { @@ -579,26 +622,26 @@ mpc52xx_console_get_options(struct uart_port *port, case MPC52xx_PSC_MODE_8_BITS: default: *bits = 8; } - + if (mr1 & MPC52xx_PSC_MODE_PARNONE) *parity = 'n'; else *parity = mr1 & MPC52xx_PSC_MODE_PARODD ? 'o' : 'e'; } -static void +static void mpc52xx_console_write(struct console *co, const char *s, unsigned int count) { struct uart_port *port = &mpc52xx_uart_ports[co->index]; struct mpc52xx_psc __iomem *psc = PSC(port); unsigned int i, j; - + /* Disable interrupts */ out_be16(&psc->mpc52xx_psc_imr, 0); /* Wait the TX buffer to be empty */ - j = 5000000; /* Maximum wait */ - while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && + j = 5000000; /* Maximum wait */ + while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && --j) udelay(1); @@ -607,13 +650,13 @@ mpc52xx_console_write(struct console *co, const char *s, unsigned int count) /* Line return handling */ if (*s == '\n') out_8(&psc->mpc52xx_psc_buffer_8, '\r'); - + /* Send the char */ out_8(&psc->mpc52xx_psc_buffer_8, *s); /* Wait the TX buffer to be empty */ - j = 20000; /* Maximum wait */ - while (!(in_be16(&psc->mpc52xx_psc_status) & + j = 20000; /* Maximum wait */ + while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && --j) udelay(1); } @@ -622,6 +665,7 @@ mpc52xx_console_write(struct console *co, const char *s, unsigned int count) out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask); } +#if !defined(CONFIG_PPC_MERGE) static int __init mpc52xx_console_setup(struct console *co, char *options) { @@ -634,7 +678,7 @@ mpc52xx_console_setup(struct console *co, char *options) if (co->index < 0 || co->index >= MPC52xx_PSC_MAXNUM) return -EINVAL; - + /* Basic port init. Needed since we use some uart_??? func before * real init for early access */ spin_lock_init(&port->lock); @@ -656,6 +700,78 @@ mpc52xx_console_setup(struct console *co, char *options) return uart_set_options(port, co, baud, parity, bits, flow); } +#else + +static int __init +mpc52xx_console_setup(struct console *co, char *options) +{ + struct uart_port *port = &mpc52xx_uart_ports[co->index]; + struct device_node *np = mpc52xx_uart_nodes[co->index]; + unsigned int ipb_freq; + struct resource res; + int ret; + + int baud = CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD; + int bits = 8; + int parity = 'n'; + int flow = 'n'; + + pr_debug("mpc52xx_console_setup co=%p, co->index=%i, options=%s\n", + co, co->index, options); + + if ((co->index < 0) || (co->index > MPC52xx_PSC_MAXNUM)) { + pr_debug("PSC%x out of range\n", co->index); + return -EINVAL; + } + + if (!np) { + pr_debug("PSC%x not found in device tree\n", co->index); + return -EINVAL; + } + + pr_debug("Console on ttyPSC%x is %s\n", + co->index, mpc52xx_uart_nodes[co->index]->full_name); + + /* Fetch register locations */ + if ((ret = of_address_to_resource(np, 0, &res)) != 0) { + pr_debug("Could not get resources for PSC%x\n", co->index); + return ret; + } + + /* Search for bus-frequency property in this node or a parent */ + if ((ipb_freq = mpc52xx_find_ipb_freq(np)) == 0) { + pr_debug("Could not find IPB bus frequency!\n"); + return -EINVAL; + } + + /* Basic port init. Needed since we use some uart_??? func before + * real init for early access */ + spin_lock_init(&port->lock); + port->uartclk = ipb_freq / 2; + port->ops = &mpc52xx_uart_ops; + port->mapbase = res.start; + port->membase = ioremap(res.start, sizeof(struct mpc52xx_psc)); + port->irq = irq_of_parse_and_map(np, 0); + + if (port->membase == NULL) + return -EINVAL; + + pr_debug("mpc52xx-psc uart at %lx, mapped to %p, irq=%x, freq=%i\n", + port->mapbase, port->membase, port->irq, port->uartclk); + + /* Setup the port parameters accoding to options */ + if (options) + uart_parse_options(options, &baud, &parity, &bits, &flow); + else + mpc52xx_console_get_options(port, &baud, &parity, &bits, &flow); + + pr_debug("Setting console parameters: %i %i%c1 flow=%c\n", + baud, bits, parity, flow); + + return uart_set_options(port, co, baud, parity, bits, flow); +} +#endif /* defined(CONFIG_PPC_MERGE) */ + static struct uart_driver mpc52xx_uart_driver; @@ -669,10 +785,11 @@ static struct console mpc52xx_console = { .data = &mpc52xx_uart_driver, }; - -static int __init + +static int __init mpc52xx_console_init(void) { + mpc52xx_uart_of_enumerate(); register_console(&mpc52xx_console); return 0; } @@ -700,6 +817,7 @@ static struct uart_driver mpc52xx_uart_driver = { }; +#if !defined(CONFIG_PPC_MERGE) /* ======================================================================== */ /* Platform Driver */ /* ======================================================================== */ @@ -723,8 +841,6 @@ mpc52xx_uart_probe(struct platform_device *dev) /* Init the port structure */ port = &mpc52xx_uart_ports[idx]; - memset(port, 0x00, sizeof(struct uart_port)); - spin_lock_init(&port->lock); port->uartclk = __res.bi_ipbfreq / 2; /* Look at CTLR doc */ port->fifosize = 512; @@ -733,6 +849,7 @@ mpc52xx_uart_probe(struct platform_device *dev) ( uart_console(port) ? 0 : UPF_IOREMAP ); port->line = idx; port->ops = &mpc52xx_uart_ops; + port->dev = &dev->dev; /* Search for IRQ and mapbase */ for (i=0 ; i<dev->num_resources ; i++, res++) { @@ -771,7 +888,7 @@ mpc52xx_uart_suspend(struct platform_device *dev, pm_message_t state) { struct uart_port *port = (struct uart_port *) platform_get_drvdata(dev); - if (sport) + if (port) uart_suspend_port(&mpc52xx_uart_driver, port); return 0; @@ -789,6 +906,7 @@ mpc52xx_uart_resume(struct platform_device *dev) } #endif + static struct platform_driver mpc52xx_uart_platform_driver = { .probe = mpc52xx_uart_probe, .remove = mpc52xx_uart_remove, @@ -800,6 +918,184 @@ static struct platform_driver mpc52xx_uart_platform_driver = { .name = "mpc52xx-psc", }, }; +#endif /* !defined(CONFIG_PPC_MERGE) */ + + +#if defined(CONFIG_PPC_MERGE) +/* ======================================================================== */ +/* OF Platform Driver */ +/* ======================================================================== */ + +static int __devinit +mpc52xx_uart_of_probe(struct of_device *op, const struct of_device_id *match) +{ + int idx = -1; + unsigned int ipb_freq; + struct uart_port *port = NULL; + struct resource res; + int ret; + + dev_dbg(&op->dev, "mpc52xx_uart_probe(op=%p, match=%p)\n", op, match); + + /* Check validity & presence */ + for (idx = 0; idx < MPC52xx_PSC_MAXNUM; idx++) + if (mpc52xx_uart_nodes[idx] == op->node) + break; + if (idx >= MPC52xx_PSC_MAXNUM) + return -EINVAL; + pr_debug("Found %s assigned to ttyPSC%x\n", + mpc52xx_uart_nodes[idx]->full_name, idx); + + /* Search for bus-frequency property in this node or a parent */ + if ((ipb_freq = mpc52xx_find_ipb_freq(op->node)) == 0) { + dev_dbg(&op->dev, "Could not find IPB bus frequency!\n"); + return -EINVAL; + } + + /* Init the port structure */ + port = &mpc52xx_uart_ports[idx]; + + spin_lock_init(&port->lock); + port->uartclk = ipb_freq / 2; + port->fifosize = 512; + port->iotype = UPIO_MEM; + port->flags = UPF_BOOT_AUTOCONF | + ( uart_console(port) ? 0 : UPF_IOREMAP ); + port->line = idx; + port->ops = &mpc52xx_uart_ops; + port->dev = &op->dev; + + /* Search for IRQ and mapbase */ + if ((ret = of_address_to_resource(op->node, 0, &res)) != 0) + return ret; + + port->mapbase = res.start; + port->irq = irq_of_parse_and_map(op->node, 0); + + dev_dbg(&op->dev, "mpc52xx-psc uart at %lx, irq=%x, freq=%i\n", + port->mapbase, port->irq, port->uartclk); + + if ((port->irq==NO_IRQ) || !port->mapbase) { + printk(KERN_ERR "Could not allocate resources for PSC\n"); + return -EINVAL; + } + + /* Add the port to the uart sub-system */ + ret = uart_add_one_port(&mpc52xx_uart_driver, port); + if (!ret) + dev_set_drvdata(&op->dev, (void*)port); + + return ret; +} + +static int +mpc52xx_uart_of_remove(struct of_device *op) +{ + struct uart_port *port = dev_get_drvdata(&op->dev); + dev_set_drvdata(&op->dev, NULL); + + if (port) + uart_remove_one_port(&mpc52xx_uart_driver, port); + + return 0; +} + +#ifdef CONFIG_PM +static int +mpc52xx_uart_of_suspend(struct of_device *op, pm_message_t state) +{ + struct uart_port *port = (struct uart_port *) dev_get_drvdata(&op->dev); + + if (port) + uart_suspend_port(&mpc52xx_uart_driver, port); + + return 0; +} + +static int +mpc52xx_uart_of_resume(struct of_device *op) +{ + struct uart_port *port = (struct uart_port *) dev_get_drvdata(&op->dev); + + if (port) + uart_resume_port(&mpc52xx_uart_driver, port); + + return 0; +} +#endif + +static void +mpc52xx_uart_of_assign(struct device_node *np, int idx) +{ + int free_idx = -1; + int i; + + /* Find the first free node */ + for (i = 0; i < MPC52xx_PSC_MAXNUM; i++) { + if (mpc52xx_uart_nodes[i] == NULL) { + free_idx = i; + break; + } + } + + if ((idx < 0) || (idx >= MPC52xx_PSC_MAXNUM)) + idx = free_idx; + + if (idx < 0) + return; /* No free slot; abort */ + + /* If the slot is already occupied, then swap slots */ + if (mpc52xx_uart_nodes[idx] && (free_idx != -1)) + mpc52xx_uart_nodes[free_idx] = mpc52xx_uart_nodes[idx]; + mpc52xx_uart_nodes[i] = np; +} + +static void +mpc52xx_uart_of_enumerate(void) +{ + static int enum_done = 0; + struct device_node *np; + const unsigned int *devno; + int i; + + if (enum_done) + return; + + for_each_node_by_type(np, "serial") { + if (!of_match_node(mpc52xx_uart_of_match, np)) + continue; + + /* Is a particular device number requested? */ + devno = get_property(np, "device_no", NULL); + mpc52xx_uart_of_assign(of_node_get(np), devno ? *devno : -1); + } + + enum_done = 1; + + for (i = 0; i < MPC52xx_PSC_MAXNUM; i++) { + if (mpc52xx_uart_nodes[i]) + pr_debug("%s assigned to ttyPSC%x\n", + mpc52xx_uart_nodes[i]->full_name, i); + } +} + +MODULE_DEVICE_TABLE(of, mpc52xx_uart_of_match); + +static struct of_platform_driver mpc52xx_uart_of_driver = { + .owner = THIS_MODULE, + .name = "mpc52xx-psc-uart", + .match_table = mpc52xx_uart_of_match, + .probe = mpc52xx_uart_of_probe, + .remove = mpc52xx_uart_of_remove, +#ifdef CONFIG_PM + .suspend = mpc52xx_uart_of_suspend, + .resume = mpc52xx_uart_of_resume, +#endif + .driver = { + .name = "mpc52xx-psc-uart", + }, +}; +#endif /* defined(CONFIG_PPC_MERGE) */ /* ======================================================================== */ @@ -811,22 +1107,45 @@ mpc52xx_uart_init(void) { int ret; - printk(KERN_INFO "Serial: MPC52xx PSC driver\n"); + printk(KERN_INFO "Serial: MPC52xx PSC UART driver\n"); - ret = uart_register_driver(&mpc52xx_uart_driver); - if (ret == 0) { - ret = platform_driver_register(&mpc52xx_uart_platform_driver); - if (ret) - uart_unregister_driver(&mpc52xx_uart_driver); + if ((ret = uart_register_driver(&mpc52xx_uart_driver)) != 0) { + printk(KERN_ERR "%s: uart_register_driver failed (%i)\n", + __FILE__, ret); + return ret; } - return ret; +#if defined(CONFIG_PPC_MERGE) + mpc52xx_uart_of_enumerate(); + + ret = of_register_platform_driver(&mpc52xx_uart_of_driver); + if (ret) { + printk(KERN_ERR "%s: of_register_platform_driver failed (%i)\n", + __FILE__, ret); + uart_unregister_driver(&mpc52xx_uart_driver); + return ret; + } +#else + ret = platform_driver_register(&mpc52xx_uart_platform_driver); + if (ret) { + printk(KERN_ERR "%s: platform_driver_register failed (%i)\n", + __FILE__, ret); + uart_unregister_driver(&mpc52xx_uart_driver); + return ret; + } +#endif + + return 0; } static void __exit mpc52xx_uart_exit(void) { +#if defined(CONFIG_PPC_MERGE) + of_unregister_platform_driver(&mpc52xx_uart_of_driver); +#else platform_driver_unregister(&mpc52xx_uart_platform_driver); +#endif uart_unregister_driver(&mpc52xx_uart_driver); } diff --git a/drivers/spi/spi_butterfly.c b/drivers/spi/spi_butterfly.c index 39d9b20..c2f601f 100644 --- a/drivers/spi/spi_butterfly.c +++ b/drivers/spi/spi_butterfly.c @@ -23,6 +23,7 @@ #include <linux/platform_device.h> #include <linux/parport.h> +#include <linux/sched.h> #include <linux/spi/spi.h> #include <linux/spi/spi_bitbang.h> #include <linux/spi/flash.h> diff --git a/drivers/video/platinumfb.c b/drivers/video/platinumfb.c index fdb33cd..cb26c6d 100644 --- a/drivers/video/platinumfb.c +++ b/drivers/video/platinumfb.c @@ -34,6 +34,7 @@ #include <asm/prom.h> #include <asm/pgtable.h> #include <asm/of_device.h> +#include <asm/of_platform.h> #include "macmodes.h" #include "platinumfb.h" @@ -682,14 +683,14 @@ static int __init platinumfb_init(void) return -ENODEV; platinumfb_setup(option); #endif - of_register_driver(&platinum_driver); + of_register_platform_driver(&platinum_driver); return 0; } static void __exit platinumfb_exit(void) { - of_unregister_driver(&platinum_driver); + of_unregister_platform_driver(&platinum_driver); } MODULE_LICENSE("GPL"); diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c index 5372cfc..b022fff 100644 --- a/drivers/w1/slaves/w1_therm.c +++ b/drivers/w1/slaves/w1_therm.c @@ -24,6 +24,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/moduleparam.h> +#include <linux/sched.h> #include <linux/device.h> #include <linux/types.h> #include <linux/delay.h> |