diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/Kconfig | 13 | ||||
| -rw-r--r-- | arch/x86/kernel/apb_timer.c | 14 | ||||
| -rw-r--r-- | arch/x86/kernel/tsc.c | 4 | ||||
| -rw-r--r-- | arch/x86/pci/broadcom_bus.c | 11 | ||||
| -rw-r--r-- | arch/x86/pci/common.c | 41 | ||||
| -rw-r--r-- | arch/x86/pci/irq.c | 3 | ||||
| -rw-r--r-- | arch/x86/platform/olpc/olpc-xo1.c | 101 | ||||
| -rw-r--r-- | arch/x86/xen/mmu.c | 1 |
8 files changed, 126 insertions, 62 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 36ed2e2..3ed5ad9 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1934,13 +1934,19 @@ config PCI_MMCONFIG depends on X86_64 && PCI && ACPI config PCI_CNB20LE_QUIRK - bool "Read CNB20LE Host Bridge Windows" - depends on PCI + bool "Read CNB20LE Host Bridge Windows" if EMBEDDED + default n + depends on PCI && EXPERIMENTAL help Read the PCI windows out of the CNB20LE host bridge. This allows PCI hotplug to work on systems with the CNB20LE chipset which do not have ACPI. + There's no public spec for this chipset, and this functionality + is known to be incomplete. + + You should say N unless you know you need this. + config DMAR bool "Support for DMA Remapping Devices (EXPERIMENTAL)" depends on PCI_MSI && ACPI && EXPERIMENTAL @@ -2062,13 +2068,14 @@ config OLPC bool "One Laptop Per Child support" select GPIOLIB select OLPC_OPENFIRMWARE + depends on !X86_64 && !X86_PAE ---help--- Add support for detecting the unique features of the OLPC XO hardware. config OLPC_XO1 tristate "OLPC XO-1 support" - depends on OLPC && PCI + depends on OLPC && MFD_CS5535 ---help--- Add support for non-essential features of the OLPC XO-1 laptop. diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c index 7c9ab59..51ef31a 100644 --- a/arch/x86/kernel/apb_timer.c +++ b/arch/x86/kernel/apb_timer.c @@ -313,14 +313,16 @@ static void apbt_setup_irq(struct apbt_dev *adev) if (adev->irq == 0) return; + irq_modify_status(adev->irq, 0, IRQ_MOVE_PCNTXT); + irq_set_affinity(adev->irq, cpumask_of(adev->cpu)); + /* APB timer irqs are set up as mp_irqs, timer is edge type */ + __set_irq_handler(adev->irq, handle_edge_irq, 0, "edge"); + if (system_state == SYSTEM_BOOTING) { - irq_modify_status(adev->irq, 0, IRQ_MOVE_PCNTXT); - irq_set_affinity(adev->irq, cpumask_of(adev->cpu)); - /* APB timer irqs are set up as mp_irqs, timer is edge type */ - __set_irq_handler(adev->irq, handle_edge_irq, 0, "edge"); if (request_irq(adev->irq, apbt_interrupt_handler, - IRQF_TIMER | IRQF_DISABLED | IRQF_NOBALANCING, - adev->name, adev)) { + IRQF_TIMER | IRQF_DISABLED | + IRQF_NOBALANCING, + adev->name, adev)) { printk(KERN_ERR "Failed request IRQ for APBT%d\n", adev->num); } diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 823f79a..ffe5755 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -464,7 +464,7 @@ unsigned long native_calibrate_tsc(void) tsc_pit_min = min(tsc_pit_min, tsc_pit_khz); /* hpet or pmtimer available ? */ - if (!hpet && !ref1 && !ref2) + if (ref1 == ref2) continue; /* Check, whether the sampling was disturbed by an SMI */ @@ -935,7 +935,7 @@ static void tsc_refine_calibration_work(struct work_struct *work) tsc_stop = tsc_read_refs(&ref_stop, hpet); /* hpet or pmtimer available ? */ - if (!hpet && !ref_start && !ref_stop) + if (ref_start == ref_stop) goto out; /* Check, whether the sampling was disturbed by an SMI */ diff --git a/arch/x86/pci/broadcom_bus.c b/arch/x86/pci/broadcom_bus.c index 0846a5b..ab8269b 100644 --- a/arch/x86/pci/broadcom_bus.c +++ b/arch/x86/pci/broadcom_bus.c @@ -9,6 +9,7 @@ * option) any later version. */ +#include <linux/acpi.h> #include <linux/delay.h> #include <linux/dmi.h> #include <linux/pci.h> @@ -25,12 +26,14 @@ static void __devinit cnb20le_res(struct pci_dev *dev) u8 fbus, lbus; int i; +#ifdef CONFIG_ACPI /* - * The x86_pci_root_bus_res_quirks() function already refuses to use - * this information if ACPI _CRS was used. Therefore, we don't bother - * checking if ACPI is enabled, and just generate the information - * for both the ACPI _CRS and no ACPI cases. + * We should get host bridge information from ACPI unless the BIOS + * doesn't support it. */ + if (acpi_os_get_root_pointer()) + return; +#endif info = &pci_root_info[pci_root_num]; pci_root_num++; diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index f7c8a39..5fe7502 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -22,6 +22,7 @@ unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 | unsigned int pci_early_dump_regs; static int pci_bf_sort; +static int smbios_type_b1_flag; int pci_routeirq; int noioapicquirk; #ifdef CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS @@ -185,6 +186,39 @@ static int __devinit set_bf_sort(const struct dmi_system_id *d) return 0; } +static void __devinit read_dmi_type_b1(const struct dmi_header *dm, + void *private_data) +{ + u8 *d = (u8 *)dm + 4; + + if (dm->type != 0xB1) + return; + switch (((*(u32 *)d) >> 9) & 0x03) { + case 0x00: + printk(KERN_INFO "dmi type 0xB1 record - unknown flag\n"); + break; + case 0x01: /* set pci=bfsort */ + smbios_type_b1_flag = 1; + break; + case 0x02: /* do not set pci=bfsort */ + smbios_type_b1_flag = 2; + break; + default: + break; + } +} + +static int __devinit find_sort_method(const struct dmi_system_id *d) +{ + dmi_walk(read_dmi_type_b1, NULL); + + if (smbios_type_b1_flag == 1) { + set_bf_sort(d); + return 0; + } + return -1; +} + /* * Enable renumbering of PCI bus# ranges to reach all PCI busses (Cardbus) */ @@ -213,6 +247,13 @@ static const struct dmi_system_id __devinitconst pciprobe_dmi_table[] = { }, #endif /* __i386__ */ { + .callback = find_sort_method, + .ident = "Dell System", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"), + }, + }, + { .callback = set_bf_sort, .ident = "Dell PowerEdge 1950", .matches = { diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c index 9f9bfb7..87e6c83 100644 --- a/arch/x86/pci/irq.c +++ b/arch/x86/pci/irq.c @@ -589,7 +589,8 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route case PCI_DEVICE_ID_INTEL_ICH10_1: case PCI_DEVICE_ID_INTEL_ICH10_2: case PCI_DEVICE_ID_INTEL_ICH10_3: - case PCI_DEVICE_ID_INTEL_PATSBURG_LPC: + case PCI_DEVICE_ID_INTEL_PATSBURG_LPC_0: + case PCI_DEVICE_ID_INTEL_PATSBURG_LPC_1: r->name = "PIIX/ICH"; r->get = pirq_piix_get; r->set = pirq_piix_set; diff --git a/arch/x86/platform/olpc/olpc-xo1.c b/arch/x86/platform/olpc/olpc-xo1.c index f5442c0..1277756 100644 --- a/arch/x86/platform/olpc/olpc-xo1.c +++ b/arch/x86/platform/olpc/olpc-xo1.c @@ -1,6 +1,7 @@ /* * Support for features of the OLPC XO-1 laptop * + * Copyright (C) 2010 Andres Salomon <dilinger@queued.net> * Copyright (C) 2010 One Laptop per Child * Copyright (C) 2006 Red Hat, Inc. * Copyright (C) 2006 Advanced Micro Devices, Inc. @@ -12,8 +13,6 @@ */ #include <linux/module.h> -#include <linux/pci.h> -#include <linux/pci_ids.h> #include <linux/platform_device.h> #include <linux/pm.h> @@ -22,9 +21,6 @@ #define DRV_NAME "olpc-xo1" -#define PMS_BAR 4 -#define ACPI_BAR 5 - /* PMC registers (PMS block) */ #define PM_SCLK 0x10 #define PM_IN_SLPCTL 0x20 @@ -57,65 +53,67 @@ static void xo1_power_off(void) outl(0x00002000, acpi_base + PM1_CNT); } -/* Read the base addresses from the PCI BAR info */ -static int __devinit setup_bases(struct pci_dev *pdev) +static int __devinit olpc_xo1_probe(struct platform_device *pdev) { - int r; + struct resource *res; - r = pci_enable_device_io(pdev); - if (r) { - dev_err(&pdev->dev, "can't enable device IO\n"); - return r; - } + /* don't run on non-XOs */ + if (!machine_is_olpc()) + return -ENODEV; - r = pci_request_region(pdev, ACPI_BAR, DRV_NAME); - if (r) { - dev_err(&pdev->dev, "can't alloc PCI BAR #%d\n", ACPI_BAR); - return r; + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (!res) { + dev_err(&pdev->dev, "can't fetch device resource info\n"); + return -EIO; } - r = pci_request_region(pdev, PMS_BAR, DRV_NAME); - if (r) { - dev_err(&pdev->dev, "can't alloc PCI BAR #%d\n", PMS_BAR); - pci_release_region(pdev, ACPI_BAR); - return r; + if (!request_region(res->start, resource_size(res), DRV_NAME)) { + dev_err(&pdev->dev, "can't request region\n"); + return -EIO; } - acpi_base = pci_resource_start(pdev, ACPI_BAR); - pms_base = pci_resource_start(pdev, PMS_BAR); + if (strcmp(pdev->name, "cs5535-pms") == 0) + pms_base = res->start; + else if (strcmp(pdev->name, "cs5535-acpi") == 0) + acpi_base = res->start; + + /* If we have both addresses, we can override the poweroff hook */ + if (pms_base && acpi_base) { + pm_power_off = xo1_power_off; + printk(KERN_INFO "OLPC XO-1 support registered\n"); + } return 0; } -static int __devinit olpc_xo1_probe(struct platform_device *pdev) +static int __devexit olpc_xo1_remove(struct platform_device *pdev) { - struct pci_dev *pcidev; - int r; - - pcidev = pci_get_device(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, - NULL); - if (!pdev) - return -ENODEV; - - r = setup_bases(pcidev); - if (r) - return r; + struct resource *r; - pm_power_off = xo1_power_off; + r = platform_get_resource(pdev, IORESOURCE_IO, 0); + release_region(r->start, resource_size(r)); - printk(KERN_INFO "OLPC XO-1 support registered\n"); - return 0; -} + if (strcmp(pdev->name, "cs5535-pms") == 0) + pms_base = 0; + else if (strcmp(pdev->name, "cs5535-acpi") == 0) + acpi_base = 0; -static int __devexit olpc_xo1_remove(struct platform_device *pdev) -{ pm_power_off = NULL; return 0; } -static struct platform_driver olpc_xo1_driver = { +static struct platform_driver cs5535_pms_drv = { + .driver = { + .name = "cs5535-pms", + .owner = THIS_MODULE, + }, + .probe = olpc_xo1_probe, + .remove = __devexit_p(olpc_xo1_remove), +}; + +static struct platform_driver cs5535_acpi_drv = { .driver = { - .name = DRV_NAME, + .name = "cs5535-acpi", .owner = THIS_MODULE, }, .probe = olpc_xo1_probe, @@ -124,12 +122,23 @@ static struct platform_driver olpc_xo1_driver = { static int __init olpc_xo1_init(void) { - return platform_driver_register(&olpc_xo1_driver); + int r; + + r = platform_driver_register(&cs5535_pms_drv); + if (r) + return r; + + r = platform_driver_register(&cs5535_acpi_drv); + if (r) + platform_driver_unregister(&cs5535_pms_drv); + + return r; } static void __exit olpc_xo1_exit(void) { - platform_driver_unregister(&olpc_xo1_driver); + platform_driver_unregister(&cs5535_acpi_drv); + platform_driver_unregister(&cs5535_pms_drv); } MODULE_AUTHOR("Daniel Drake <dsd@laptop.org>"); diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 7575e55..5e92b61 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -201,6 +201,7 @@ xmaddr_t arbitrary_virt_to_machine(void *vaddr) offset = address & ~PAGE_MASK; return XMADDR(((phys_addr_t)pte_mfn(*pte) << PAGE_SHIFT) + offset); } +EXPORT_SYMBOL_GPL(arbitrary_virt_to_machine); void make_lowmem_page_readonly(void *vaddr) { |