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authorJiri Kosina <jkosina@suse.cz>2013-01-29 10:48:30 +0100
committerJiri Kosina <jkosina@suse.cz>2013-01-29 10:48:30 +0100
commit617677295b53a40d0e54aac4cbbc216ffbc755dd (patch)
tree51b9e87213243ed5efff252c8e8d8fec4eebc588 /drivers/pci
parent5c8d1b68e01a144813e38795fe6dbe7ebb506131 (diff)
parent6abb7c25775b7fb2225ad0508236d63ca710e65f (diff)
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Merge branch 'master' into for-next
Conflicts: drivers/devfreq/exynos4_bus.c Sync with Linus' tree to be able to apply patches that are against newer code (mvneta).
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/Makefile7
-rw-r--r--drivers/pci/bus.c8
-rw-r--r--drivers/pci/hotplug.c37
-rw-r--r--drivers/pci/hotplug/Kconfig11
-rw-r--r--drivers/pci/hotplug/Makefile1
-rw-r--r--drivers/pci/hotplug/cpcihp_zt5550.c4
-rw-r--r--drivers/pci/hotplug/pciehp.h2
-rw-r--r--drivers/pci/hotplug/pciehp_core.c11
-rw-r--r--drivers/pci/hotplug/pciehp_ctrl.c8
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c11
-rw-r--r--drivers/pci/hotplug/s390_pci_hpc.c252
-rw-r--r--drivers/pci/hotplug/shpchp.h3
-rw-r--r--drivers/pci/hotplug/shpchp_core.c36
-rw-r--r--drivers/pci/hotplug/shpchp_ctrl.c6
-rw-r--r--drivers/pci/ioapic.c8
-rw-r--r--drivers/pci/iov.c87
-rw-r--r--drivers/pci/irq.c10
-rw-r--r--drivers/pci/msi.c6
-rw-r--r--drivers/pci/pci-acpi.c79
-rw-r--r--drivers/pci/pci-driver.c127
-rw-r--r--drivers/pci/pci-stub.c2
-rw-r--r--drivers/pci/pci-sysfs.c196
-rw-r--r--drivers/pci/pci.c84
-rw-r--r--drivers/pci/pci.h15
-rw-r--r--drivers/pci/pcie/Kconfig2
-rw-r--r--drivers/pci/pcie/aer/aerdrv.c4
-rw-r--r--drivers/pci/pcie/aer/aerdrv.h5
-rw-r--r--drivers/pci/pcie/aer/aerdrv_core.c39
-rw-r--r--drivers/pci/pcie/aspm.c21
-rw-r--r--drivers/pci/pcie/portdrv_core.c6
-rw-r--r--drivers/pci/pcie/portdrv_pci.c22
-rw-r--r--drivers/pci/probe.c62
-rw-r--r--drivers/pci/proc.c8
-rw-r--r--drivers/pci/quirks.c178
-rw-r--r--drivers/pci/remove.c36
-rw-r--r--drivers/pci/rom.c11
-rw-r--r--drivers/pci/setup-bus.c22
-rw-r--r--drivers/pci/xen-pcifront.c15
38 files changed, 988 insertions, 454 deletions
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index 8d688b2..0c3efcf 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -4,7 +4,7 @@
obj-y += access.o bus.o probe.o host-bridge.o remove.o pci.o \
pci-driver.o search.o pci-sysfs.o rom.o setup-res.o \
- irq.o vpd.o
+ irq.o vpd.o setup-bus.o
obj-$(CONFIG_PROC_FS) += proc.o
obj-$(CONFIG_SYSFS) += slot.o
@@ -15,8 +15,6 @@ obj-$(CONFIG_PCIEPORTBUS) += pcie/
obj-$(CONFIG_PCI_IOAPIC) += ioapic.o
-obj-$(CONFIG_HOTPLUG) += hotplug.o
-
# Build the PCI Hotplug drivers if we were asked to
obj-$(CONFIG_HOTPLUG_PCI) += hotplug/
ifdef CONFIG_HOTPLUG_PCI
@@ -60,9 +58,6 @@ obj-$(CONFIG_ACPI) += pci-acpi.o
# SMBIOS provided firmware instance and labels
obj-$(CONFIG_PCI_LABEL) += pci-label.o
-# Cardbus & CompactPCI use setup-bus
-obj-$(CONFIG_HOTPLUG) += setup-bus.o
-
obj-$(CONFIG_PCI_SYSCALL) += syscall.o
obj-$(CONFIG_PCI_STUB) += pci-stub.o
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 6241fd0..ad6a8b6 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -170,6 +170,11 @@ int pci_bus_add_device(struct pci_dev *dev)
int retval;
pci_fixup_device(pci_fixup_final, dev);
+
+ retval = pcibios_add_device(dev);
+ if (retval)
+ return retval;
+
retval = device_add(&dev->dev);
if (retval)
return retval;
@@ -320,10 +325,7 @@ void pci_walk_bus(struct pci_bus *top, int (*cb)(struct pci_dev *, void *),
} else
next = dev->bus_list.next;
- /* Run device routines with the device locked */
- device_lock(&dev->dev);
retval = cb(dev, userdata);
- device_unlock(&dev->dev);
if (retval)
break;
}
diff --git a/drivers/pci/hotplug.c b/drivers/pci/hotplug.c
deleted file mode 100644
index 2b5352a..0000000
--- a/drivers/pci/hotplug.c
+++ /dev/null
@@ -1,37 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/module.h>
-#include "pci.h"
-
-int pci_uevent(struct device *dev, struct kobj_uevent_env *env)
-{
- struct pci_dev *pdev;
-
- if (!dev)
- return -ENODEV;
-
- pdev = to_pci_dev(dev);
- if (!pdev)
- return -ENODEV;
-
- if (add_uevent_var(env, "PCI_CLASS=%04X", pdev->class))
- return -ENOMEM;
-
- if (add_uevent_var(env, "PCI_ID=%04X:%04X", pdev->vendor, pdev->device))
- return -ENOMEM;
-
- if (add_uevent_var(env, "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
- pdev->subsystem_device))
- return -ENOMEM;
-
- if (add_uevent_var(env, "PCI_SLOT_NAME=%s", pci_name(pdev)))
- return -ENOMEM;
-
- if (add_uevent_var(env, "MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x",
- pdev->vendor, pdev->device,
- pdev->subsystem_vendor, pdev->subsystem_device,
- (u8)(pdev->class >> 16), (u8)(pdev->class >> 8),
- (u8)(pdev->class)))
- return -ENOMEM;
- return 0;
-}
diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig
index b0e46de..13e9e63 100644
--- a/drivers/pci/hotplug/Kconfig
+++ b/drivers/pci/hotplug/Kconfig
@@ -151,4 +151,15 @@ config HOTPLUG_PCI_SGI
When in doubt, say N.
+config HOTPLUG_PCI_S390
+ tristate "System z PCI Hotplug Support"
+ depends on S390 && 64BIT
+ help
+ Say Y here if you want to use the System z PCI Hotplug
+ driver for PCI devices. Without this driver it is not
+ possible to access stand-by PCI functions nor to deconfigure
+ PCI functions.
+
+ When in doubt, say Y.
+
endif # HOTPLUG_PCI
diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile
index c459cd4..47ec8c8 100644
--- a/drivers/pci/hotplug/Makefile
+++ b/drivers/pci/hotplug/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_HOTPLUG_PCI_RPA) += rpaphp.o
obj-$(CONFIG_HOTPLUG_PCI_RPA_DLPAR) += rpadlpar_io.o
obj-$(CONFIG_HOTPLUG_PCI_SGI) += sgi_hotplug.o
obj-$(CONFIG_HOTPLUG_PCI_ACPI) += acpiphp.o
+obj-$(CONFIG_HOTPLUG_PCI_S390) += s390_pci_hpc.o
# acpiphp_ibm extends acpiphp, so should be linked afterwards.
diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
index 6bf8d2a..449b4bb 100644
--- a/drivers/pci/hotplug/cpcihp_zt5550.c
+++ b/drivers/pci/hotplug/cpcihp_zt5550.c
@@ -271,7 +271,7 @@ init_hc_error:
}
-static void __devexit zt5550_hc_remove_one(struct pci_dev *pdev)
+static void zt5550_hc_remove_one(struct pci_dev *pdev)
{
cpci_hp_stop();
cpci_hp_unregister_bus(bus0);
@@ -290,7 +290,7 @@ static struct pci_driver zt5550_hc_driver = {
.name = "zt5550_hc",
.id_table = zt5550_hc_pci_tbl,
.probe = zt5550_hc_init_one,
- .remove = __devexit_p(zt5550_hc_remove_one),
+ .remove = zt5550_hc_remove_one,
};
static int __init zt5550_init(void)
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 26ffd3e..2c113de 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -44,7 +44,6 @@ extern bool pciehp_poll_mode;
extern int pciehp_poll_time;
extern bool pciehp_debug;
extern bool pciehp_force;
-extern struct workqueue_struct *pciehp_wq;
#define dbg(format, arg...) \
do { \
@@ -78,6 +77,7 @@ struct slot {
struct hotplug_slot *hotplug_slot;
struct delayed_work work; /* work for button event */
struct mutex lock;
+ struct workqueue_struct *wq;
};
struct event_info {
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 916bf4f..939bd1d 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -42,7 +42,6 @@ bool pciehp_debug;
bool pciehp_poll_mode;
int pciehp_poll_time;
bool pciehp_force;
-struct workqueue_struct *pciehp_wq;
#define DRIVER_VERSION "0.4"
#define DRIVER_AUTHOR "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>"
@@ -340,18 +339,13 @@ static int __init pcied_init(void)
{
int retval = 0;
- pciehp_wq = alloc_workqueue("pciehp", 0, 0);
- if (!pciehp_wq)
- return -ENOMEM;
-
pciehp_firmware_init();
retval = pcie_port_service_register(&hpdriver_portdrv);
dbg("pcie_port_service_register = %d\n", retval);
info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
- if (retval) {
- destroy_workqueue(pciehp_wq);
+ if (retval)
dbg("Failure to register service\n");
- }
+
return retval;
}
@@ -359,7 +353,6 @@ static void __exit pcied_cleanup(void)
{
dbg("unload_pciehpd()\n");
pcie_port_service_unregister(&hpdriver_portdrv);
- destroy_workqueue(pciehp_wq);
info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");
}
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index 27f4429..38f0186 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -49,7 +49,7 @@ static int queue_interrupt_event(struct slot *p_slot, u32 event_type)
info->p_slot = p_slot;
INIT_WORK(&info->work, interrupt_event_handler);
- queue_work(pciehp_wq, &info->work);
+ queue_work(p_slot->wq, &info->work);
return 0;
}
@@ -344,7 +344,7 @@ void pciehp_queue_pushbutton_work(struct work_struct *work)
kfree(info);
goto out;
}
- queue_work(pciehp_wq, &info->work);
+ queue_work(p_slot->wq, &info->work);
out:
mutex_unlock(&p_slot->lock);
}
@@ -377,7 +377,7 @@ static void handle_button_press_event(struct slot *p_slot)
if (ATTN_LED(ctrl))
pciehp_set_attention_status(p_slot, 0);
- queue_delayed_work(pciehp_wq, &p_slot->work, 5*HZ);
+ queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);
break;
case BLINKINGOFF_STATE:
case BLINKINGON_STATE:
@@ -439,7 +439,7 @@ static void handle_surprise_event(struct slot *p_slot)
else
p_slot->state = POWERON_STATE;
- queue_work(pciehp_wq, &info->work);
+ queue_work(p_slot->wq, &info->work);
}
static void interrupt_event_handler(struct work_struct *work)
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 13b2eaf..5127f3f 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -773,23 +773,32 @@ static void pcie_shutdown_notification(struct controller *ctrl)
static int pcie_init_slot(struct controller *ctrl)
{
struct slot *slot;
+ char name[32];
slot = kzalloc(sizeof(*slot), GFP_KERNEL);
if (!slot)
return -ENOMEM;
+ snprintf(name, sizeof(name), "pciehp-%u", PSN(ctrl));
+ slot->wq = alloc_workqueue(name, 0, 0);
+ if (!slot->wq)
+ goto abort;
+
slot->ctrl = ctrl;
mutex_init(&slot->lock);
INIT_DELAYED_WORK(&slot->work, pciehp_queue_pushbutton_work);
ctrl->slot = slot;
return 0;
+abort:
+ kfree(slot);
+ return -ENOMEM;
}
static void pcie_cleanup_slot(struct controller *ctrl)
{
struct slot *slot = ctrl->slot;
cancel_delayed_work(&slot->work);
- flush_workqueue(pciehp_wq);
+ destroy_workqueue(slot->wq);
kfree(slot);
}
diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c
new file mode 100644
index 0000000..dee68e0
--- /dev/null
+++ b/drivers/pci/hotplug/s390_pci_hpc.c
@@ -0,0 +1,252 @@
+/*
+ * PCI Hot Plug Controller Driver for System z
+ *
+ * Copyright 2012 IBM Corp.
+ *
+ * Author(s):
+ * Jan Glauber <jang@linux.vnet.ibm.com>
+ */
+
+#define COMPONENT "zPCI hpc"
+#define pr_fmt(fmt) COMPONENT ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/pci_hotplug.h>
+#include <linux/init.h>
+#include <asm/sclp.h>
+
+#define SLOT_NAME_SIZE 10
+static LIST_HEAD(s390_hotplug_slot_list);
+
+MODULE_AUTHOR("Jan Glauber <jang@linux.vnet.ibm.com");
+MODULE_DESCRIPTION("Hot Plug PCI Controller for System z");
+MODULE_LICENSE("GPL");
+
+static int zpci_fn_configured(enum zpci_state state)
+{
+ return state == ZPCI_FN_STATE_CONFIGURED ||
+ state == ZPCI_FN_STATE_ONLINE;
+}
+
+/*
+ * struct slot - slot information for each *physical* slot
+ */
+struct slot {
+ struct list_head slot_list;
+ struct hotplug_slot *hotplug_slot;
+ struct zpci_dev *zdev;
+};
+
+static int enable_slot(struct hotplug_slot *hotplug_slot)
+{
+ struct slot *slot = hotplug_slot->private;
+ int rc;
+
+ if (slot->zdev->state != ZPCI_FN_STATE_STANDBY)
+ return -EIO;
+
+ rc = sclp_pci_configure(slot->zdev->fid);
+ if (!rc) {
+ slot->zdev->state = ZPCI_FN_STATE_CONFIGURED;
+ /* automatically scan the device after is was configured */
+ zpci_enable_device(slot->zdev);
+ zpci_scan_device(slot->zdev);
+ }
+ return rc;
+}
+
+static int disable_slot(struct hotplug_slot *hotplug_slot)
+{
+ struct slot *slot = hotplug_slot->private;
+ int rc;
+
+ if (!zpci_fn_configured(slot->zdev->state))
+ return -EIO;
+
+ /* TODO: we rely on the user to unbind/remove the device, is that plausible
+ * or do we need to trigger that here?
+ */
+ rc = sclp_pci_deconfigure(slot->zdev->fid);
+ if (!rc) {
+ /* Fixme: better call List-PCI to find the disabled FH
+ for the FID since the FH should be opaque... */
+ slot->zdev->fh &= 0x7fffffff;
+ slot->zdev->state = ZPCI_FN_STATE_STANDBY;
+ }
+ return rc;
+}
+
+static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
+{
+ struct slot *slot = hotplug_slot->private;
+
+ switch (slot->zdev->state) {
+ case ZPCI_FN_STATE_STANDBY:
+ *value = 0;
+ break;
+ default:
+ *value = 1;
+ break;
+ }
+ return 0;
+}
+
+static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
+{
+ /* if the slot exits it always contains a function */
+ *value = 1;
+ return 0;
+}
+
+static void release_slot(struct hotplug_slot *hotplug_slot)
+{
+ struct slot *slot = hotplug_slot->private;
+
+ pr_debug("%s - physical_slot = %s\n", __func__, hotplug_slot_name(hotplug_slot));
+ kfree(slot->hotplug_slot->info);
+ kfree(slot->hotplug_slot);
+ kfree(slot);
+}
+
+static struct hotplug_slot_ops s390_hotplug_slot_ops = {
+ .enable_slot = enable_slot,
+ .disable_slot = disable_slot,
+ .get_power_status = get_power_status,
+ .get_adapter_status = get_adapter_status,
+};
+
+static int init_pci_slot(struct zpci_dev *zdev)
+{
+ struct hotplug_slot *hotplug_slot;
+ struct hotplug_slot_info *info;
+ char name[SLOT_NAME_SIZE];
+ struct slot *slot;
+ int rc;
+
+ if (!zdev)
+ return 0;
+
+ slot = kzalloc(sizeof(*slot), GFP_KERNEL);
+ if (!slot)
+ goto error;
+
+ hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL);
+ if (!hotplug_slot)
+ goto error_hp;
+ hotplug_slot->private = slot;
+
+ slot->hotplug_slot = hotplug_slot;
+ slot->zdev = zdev;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ goto error_info;
+ hotplug_slot->info = info;
+
+ hotplug_slot->ops = &s390_hotplug_slot_ops;
+ hotplug_slot->release = &release_slot;
+
+ get_power_status(hotplug_slot, &info->power_status);
+ get_adapter_status(hotplug_slot, &info->adapter_status);
+
+ snprintf(name, SLOT_NAME_SIZE, "%08x", zdev->fid);
+ rc = pci_hp_register(slot->hotplug_slot, zdev->bus,
+ ZPCI_DEVFN, name);
+ if (rc) {
+ pr_err("pci_hp_register failed with error %d\n", rc);
+ goto error_reg;
+ }
+ list_add(&slot->slot_list, &s390_hotplug_slot_list);
+ return 0;
+
+error_reg:
+ kfree(info);
+error_info:
+ kfree(hotplug_slot);
+error_hp:
+ kfree(slot);
+error:
+ return -ENOMEM;
+}
+
+static int __init init_pci_slots(void)
+{
+ struct zpci_dev *zdev;
+ int device = 0;
+
+ /*
+ * Create a structure for each slot, and register that slot
+ * with the pci_hotplug subsystem.
+ */
+ mutex_lock(&zpci_list_lock);
+ list_for_each_entry(zdev, &zpci_list, entry) {
+ init_pci_slot(zdev);
+ device++;
+ }
+
+ mutex_unlock(&zpci_list_lock);
+ return (device) ? 0 : -ENODEV;
+}
+
+static void exit_pci_slot(struct zpci_dev *zdev)
+{
+ struct list_head *tmp, *n;
+ struct slot *slot;
+
+ list_for_each_safe(tmp, n, &s390_hotplug_slot_list) {
+ slot = list_entry(tmp, struct slot, slot_list);
+ if (slot->zdev != zdev)
+ continue;
+ list_del(&slot->slot_list);
+ pci_hp_deregister(slot->hotplug_slot);
+ }
+}
+
+static void __exit exit_pci_slots(void)
+{
+ struct list_head *tmp, *n;
+ struct slot *slot;
+
+ /*
+ * Unregister all of our slots with the pci_hotplug subsystem.
+ * Memory will be freed in release_slot() callback after slot's
+ * lifespan is finished.
+ */
+ list_for_each_safe(tmp, n, &s390_hotplug_slot_list) {
+ slot = list_entry(tmp, struct slot, slot_list);
+ list_del(&slot->slot_list);
+ pci_hp_deregister(slot->hotplug_slot);
+ }
+}
+
+static int __init pci_hotplug_s390_init(void)
+{
+ /*
+ * Do specific initialization stuff for your driver here
+ * like initializing your controller hardware (if any) and
+ * determining the number of slots you have in the system
+ * right now.
+ */
+
+ if (!pci_probe)
+ return -EOPNOTSUPP;
+
+ /* register callbacks for slot handling from arch code */
+ mutex_lock(&zpci_list_lock);
+ hotplug_ops.create_slot = init_pci_slot;
+ hotplug_ops.remove_slot = exit_pci_slot;
+ mutex_unlock(&zpci_list_lock);
+ pr_info("registered hotplug slot callbacks\n");
+ return init_pci_slots();
+}
+
+static void __exit pci_hotplug_s390_exit(void)
+{
+ exit_pci_slots();
+}
+
+module_init(pci_hotplug_s390_init);
+module_exit(pci_hotplug_s390_exit);
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index ca64932..b849f995 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -46,8 +46,6 @@
extern bool shpchp_poll_mode;
extern int shpchp_poll_time;
extern bool shpchp_debug;
-extern struct workqueue_struct *shpchp_wq;
-extern struct workqueue_struct *shpchp_ordered_wq;
#define dbg(format, arg...) \
do { \
@@ -91,6 +89,7 @@ struct slot {
struct list_head slot_list;
struct delayed_work work; /* work for button event */
struct mutex lock;
+ struct workqueue_struct *wq;
u8 hp_slot;
};
diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c
index b6de307..3100c52 100644
--- a/drivers/pci/hotplug/shpchp_core.c
+++ b/drivers/pci/hotplug/shpchp_core.c
@@ -39,8 +39,6 @@
bool shpchp_debug;
bool shpchp_poll_mode;
int shpchp_poll_time;
-struct workqueue_struct *shpchp_wq;
-struct workqueue_struct *shpchp_ordered_wq;
#define DRIVER_VERSION "0.4"
#define DRIVER_AUTHOR "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>"
@@ -129,6 +127,14 @@ static int init_slots(struct controller *ctrl)
slot->device = ctrl->slot_device_offset + i;
slot->hpc_ops = ctrl->hpc_ops;
slot->number = ctrl->first_slot + (ctrl->slot_num_inc * i);
+
+ snprintf(name, sizeof(name), "shpchp-%d", slot->number);
+ slot->wq = alloc_workqueue(name, 0, 0);
+ if (!slot->wq) {
+ retval = -ENOMEM;
+ goto error_info;
+ }
+
mutex_init(&slot->lock);
INIT_DELAYED_WORK(&slot->work, shpchp_queue_pushbutton_work);
@@ -148,7 +154,7 @@ static int init_slots(struct controller *ctrl)
if (retval) {
ctrl_err(ctrl, "pci_hp_register failed with error %d\n",
retval);
- goto error_info;
+ goto error_slotwq;
}
get_power_status(hotplug_slot, &info->power_status);
@@ -160,6 +166,8 @@ static int init_slots(struct controller *ctrl)
}
return 0;
+error_slotwq:
+ destroy_workqueue(slot->wq);
error_info:
kfree(info);
error_hpslot:
@@ -180,8 +188,7 @@ void cleanup_slots(struct controller *ctrl)
slot = list_entry(tmp, struct slot, slot_list);
list_del(&slot->slot_list);
cancel_delayed_work(&slot->work);
- flush_workqueue(shpchp_wq);
- flush_workqueue(shpchp_ordered_wq);
+ destroy_workqueue(slot->wq);
pci_hp_deregister(slot->hotplug_slot);
}
}
@@ -364,25 +371,12 @@ static struct pci_driver shpc_driver = {
static int __init shpcd_init(void)
{
- int retval = 0;
-
- shpchp_wq = alloc_ordered_workqueue("shpchp", 0);
- if (!shpchp_wq)
- return -ENOMEM;
-
- shpchp_ordered_wq = alloc_ordered_workqueue("shpchp_ordered", 0);
- if (!shpchp_ordered_wq) {
- destroy_workqueue(shpchp_wq);
- return -ENOMEM;
- }
+ int retval;
retval = pci_register_driver(&shpc_driver);
dbg("%s: pci_register_driver = %d\n", __func__, retval);
info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
- if (retval) {
- destroy_workqueue(shpchp_ordered_wq);
- destroy_workqueue(shpchp_wq);
- }
+
return retval;
}
@@ -390,8 +384,6 @@ static void __exit shpcd_cleanup(void)
{
dbg("unload_shpchpd()\n");
pci_unregister_driver(&shpc_driver);
- destroy_workqueue(shpchp_ordered_wq);
- destroy_workqueue(shpchp_wq);
info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");
}
diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c
index f9b5a52..5849927 100644
--- a/drivers/pci/hotplug/shpchp_ctrl.c
+++ b/drivers/pci/hotplug/shpchp_ctrl.c
@@ -51,7 +51,7 @@ static int queue_interrupt_event(struct slot *p_slot, u32 event_type)
info->p_slot = p_slot;
INIT_WORK(&info->work, interrupt_event_handler);
- queue_work(shpchp_wq, &info->work);
+ queue_work(p_slot->wq, &info->work);
return 0;
}
@@ -453,7 +453,7 @@ void shpchp_queue_pushbutton_work(struct work_struct *work)
kfree(info);
goto out;
}
- queue_work(shpchp_ordered_wq, &info->work);
+ queue_work(p_slot->wq, &info->work);
out:
mutex_unlock(&p_slot->lock);
}
@@ -501,7 +501,7 @@ static void handle_button_press_event(struct slot *p_slot)
p_slot->hpc_ops->green_led_blink(p_slot);
p_slot->hpc_ops->set_attention_status(p_slot, 0);
- queue_delayed_work(shpchp_wq, &p_slot->work, 5*HZ);
+ queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);
break;
case BLINKINGOFF_STATE:
case BLINKINGON_STATE:
diff --git a/drivers/pci/ioapic.c b/drivers/pci/ioapic.c
index 205af8d..3c6bbdd 100644
--- a/drivers/pci/ioapic.c
+++ b/drivers/pci/ioapic.c
@@ -27,7 +27,7 @@ struct ioapic {
u32 gsi_base;
};
-static int __devinit ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+static int ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent)
{
acpi_handle handle;
acpi_status status;
@@ -88,7 +88,7 @@ exit_free:
return -ENODEV;
}
-static void __devexit ioapic_remove(struct pci_dev *dev)
+static void ioapic_remove(struct pci_dev *dev)
{
struct ioapic *ioapic = pci_get_drvdata(dev);
@@ -110,7 +110,7 @@ static struct pci_driver ioapic_driver = {
.name = "ioapic",
.id_table = ioapic_devices,
.probe = ioapic_probe,
- .remove = __devexit_p(ioapic_remove),
+ .remove = ioapic_remove,
};
static int __init ioapic_init(void)
@@ -125,3 +125,5 @@ static void __exit ioapic_exit(void)
module_init(ioapic_init);
module_exit(ioapic_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index aeccc91..c18e5bf 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -106,7 +106,7 @@ static int virtfn_add(struct pci_dev *dev, int id, int reset)
virtfn->resource[i].name = pci_name(virtfn);
virtfn->resource[i].flags = res->flags;
size = resource_size(res);
- do_div(size, iov->total);
+ do_div(size, iov->total_VFs);
virtfn->resource[i].start = res->start + size * id;
virtfn->resource[i].end = virtfn->resource[i].start + size - 1;
rc = request_resource(res, &virtfn->resource[i]);
@@ -194,7 +194,7 @@ static int sriov_migration(struct pci_dev *dev)
u16 status;
struct pci_sriov *iov = dev->sriov;
- if (!iov->nr_virtfn)
+ if (!iov->num_VFs)
return 0;
if (!(iov->cap & PCI_SRIOV_CAP_VFM))
@@ -216,7 +216,7 @@ static void sriov_migration_task(struct work_struct *work)
u16 status;
struct pci_sriov *iov = container_of(work, struct pci_sriov, mtask);
- for (i = iov->initial; i < iov->nr_virtfn; i++) {
+ for (i = iov->initial_VFs; i < iov->num_VFs; i++) {
state = readb(iov->mstate + i);
if (state == PCI_SRIOV_VFM_MI) {
writeb(PCI_SRIOV_VFM_AV, iov->mstate + i);
@@ -244,7 +244,7 @@ static int sriov_enable_migration(struct pci_dev *dev, int nr_virtfn)
resource_size_t pa;
struct pci_sriov *iov = dev->sriov;
- if (nr_virtfn <= iov->initial)
+ if (nr_virtfn <= iov->initial_VFs)
return 0;
pci_read_config_dword(dev, iov->pos + PCI_SRIOV_VFM, &table);
@@ -294,15 +294,15 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn)
if (!nr_virtfn)
return 0;
- if (iov->nr_virtfn)
+ if (iov->num_VFs)
return -EINVAL;
pci_read_config_word(dev, iov->pos + PCI_SRIOV_INITIAL_VF, &initial);
- if (initial > iov->total ||
- (!(iov->cap & PCI_SRIOV_CAP_VFM) && (initial != iov->total)))
+ if (initial > iov->total_VFs ||
+ (!(iov->cap & PCI_SRIOV_CAP_VFM) && (initial != iov->total_VFs)))
return -EIO;
- if (nr_virtfn < 0 || nr_virtfn > iov->total ||
+ if (nr_virtfn < 0 || nr_virtfn > iov->total_VFs ||
(!(iov->cap & PCI_SRIOV_CAP_VFM) && (nr_virtfn > initial)))
return -EINVAL;
@@ -359,7 +359,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn)
msleep(100);
pci_cfg_access_unlock(dev);
- iov->initial = initial;
+ iov->initial_VFs = initial;
if (nr_virtfn < initial)
initial = nr_virtfn;
@@ -376,7 +376,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn)
}
kobject_uevent(&dev->dev.kobj, KOBJ_CHANGE);
- iov->nr_virtfn = nr_virtfn;
+ iov->num_VFs = nr_virtfn;
return 0;
@@ -401,13 +401,13 @@ static void sriov_disable(struct pci_dev *dev)
int i;
struct pci_sriov *iov = dev->sriov;
- if (!iov->nr_virtfn)
+ if (!iov->num_VFs)
return;
if (iov->cap & PCI_SRIOV_CAP_VFM)
sriov_disable_migration(dev);
- for (i = 0; i < iov->nr_virtfn; i++)
+ for (i = 0; i < iov->num_VFs; i++)
virtfn_remove(dev, i, 0);
iov->ctrl &= ~(PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE);
@@ -419,7 +419,7 @@ static void sriov_disable(struct pci_dev *dev)
if (iov->link != dev->devfn)
sysfs_remove_link(&dev->dev.kobj, "dep_link");
- iov->nr_virtfn = 0;
+ iov->num_VFs = 0;
}
static int sriov_init(struct pci_dev *dev, int pos)
@@ -496,7 +496,7 @@ found:
iov->pos = pos;
iov->nres = nres;
iov->ctrl = ctrl;
- iov->total = total;
+ iov->total_VFs = total;
iov->offset = offset;
iov->stride = stride;
iov->pgsz = pgsz;
@@ -529,7 +529,7 @@ failed:
static void sriov_release(struct pci_dev *dev)
{
- BUG_ON(dev->sriov->nr_virtfn);
+ BUG_ON(dev->sriov->num_VFs);
if (dev != dev->sriov->dev)
pci_dev_put(dev->sriov->dev);
@@ -554,7 +554,7 @@ static void sriov_restore_state(struct pci_dev *dev)
pci_update_resource(dev, i);
pci_write_config_dword(dev, iov->pos + PCI_SRIOV_SYS_PGSIZE, iov->pgsz);
- pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, iov->nr_virtfn);
+ pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, iov->num_VFs);
pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);
if (iov->ctrl & PCI_SRIOV_CTRL_VFE)
msleep(100);
@@ -661,7 +661,7 @@ int pci_iov_bus_range(struct pci_bus *bus)
list_for_each_entry(dev, &bus->devices, bus_list) {
if (!dev->is_physfn)
continue;
- busnr = virtfn_bus(dev, dev->sriov->total - 1);
+ busnr = virtfn_bus(dev, dev->sriov->total_VFs - 1);
if (busnr > max)
max = busnr;
}
@@ -729,9 +729,56 @@ EXPORT_SYMBOL_GPL(pci_sriov_migration);
*/
int pci_num_vf(struct pci_dev *dev)
{
- if (!dev || !dev->is_physfn)
+ if (!dev->is_physfn)
return 0;
- else
- return dev->sriov->nr_virtfn;
+
+ return dev->sriov->num_VFs;
}
EXPORT_SYMBOL_GPL(pci_num_vf);
+
+/**
+ * pci_sriov_set_totalvfs -- reduce the TotalVFs available
+ * @dev: the PCI PF device
+ * @numvfs: number that should be used for TotalVFs supported
+ *
+ * Should be called from PF driver's probe routine with
+ * device's mutex held.
+ *
+ * Returns 0 if PF is an SRIOV-capable device and
+ * value of numvfs valid. If not a PF with VFS, return -EINVAL;
+ * if VFs already enabled, return -EBUSY.
+ */
+int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs)
+{
+ if (!dev->is_physfn || (numvfs > dev->sriov->total_VFs))
+ return -EINVAL;
+
+ /* Shouldn't change if VFs already enabled */
+ if (dev->sriov->ctrl & PCI_SRIOV_CTRL_VFE)
+ return -EBUSY;
+ else
+ dev->sriov->driver_max_VFs = numvfs;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(pci_sriov_set_totalvfs);
+
+/**
+ * pci_sriov_get_totalvfs -- get total VFs supported on this devic3
+ * @dev: the PCI PF device
+ *
+ * For a PCIe device with SRIOV support, return the PCIe
+ * SRIOV capability value of TotalVFs or the value of driver_max_VFs
+ * if the driver reduced it. Otherwise, -EINVAL.
+ */
+int pci_sriov_get_totalvfs(struct pci_dev *dev)
+{
+ if (!dev->is_physfn)
+ return -EINVAL;
+
+ if (dev->sriov->driver_max_VFs)
+ return dev->sriov->driver_max_VFs;
+
+ return dev->sriov->total_VFs;
+}
+EXPORT_SYMBOL_GPL(pci_sriov_get_totalvfs);
diff --git a/drivers/pci/irq.c b/drivers/pci/irq.c
index e5f69a4..b008cf8 100644
--- a/drivers/pci/irq.c
+++ b/drivers/pci/irq.c
@@ -14,11 +14,11 @@ static void pci_note_irq_problem(struct pci_dev *pdev, const char *reason)
{
struct pci_dev *parent = to_pci_dev(pdev->dev.parent);
- dev_printk(KERN_ERR, &pdev->dev,
- "Potentially misrouted IRQ (Bridge %s %04x:%04x)\n",
- dev_name(&parent->dev), parent->vendor, parent->device);
- dev_printk(KERN_ERR, &pdev->dev, "%s\n", reason);
- dev_printk(KERN_ERR, &pdev->dev, "Please report to linux-kernel@vger.kernel.org\n");
+ dev_err(&pdev->dev,
+ "Potentially misrouted IRQ (Bridge %s %04x:%04x)\n",
+ dev_name(&parent->dev), parent->vendor, parent->device);
+ dev_err(&pdev->dev, "%s\n", reason);
+ dev_err(&pdev->dev, "Please report to linux-kernel@vger.kernel.org\n");
WARN_ON(1);
}
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index a825d78..5099636 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -207,6 +207,8 @@ static void msix_mask_irq(struct msi_desc *desc, u32 flag)
desc->masked = __msix_mask_irq(desc, flag);
}
+#ifdef CONFIG_GENERIC_HARDIRQS
+
static void msi_set_mask_bit(struct irq_data *data, u32 flag)
{
struct msi_desc *desc = irq_data_get_msi(data);
@@ -230,6 +232,8 @@ void unmask_msi_irq(struct irq_data *data)
msi_set_mask_bit(data, 0);
}
+#endif /* CONFIG_GENERIC_HARDIRQS */
+
void __read_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
{
BUG_ON(entry->dev->current_state != PCI_D0);
@@ -337,8 +341,10 @@ static void free_msi_irqs(struct pci_dev *dev)
if (!entry->irq)
continue;
nvec = 1 << entry->msi_attrib.multiple;
+#ifdef CONFIG_GENERIC_HARDIRQS
for (i = 0; i < nvec; i++)
BUG_ON(irq_has_action(entry->irq + i));
+#endif
}
arch_teardown_msi_irqs(dev);
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index c5792d6..1af4008 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -17,10 +17,9 @@
#include <linux/pci-acpi.h>
#include <linux/pm_runtime.h>
+#include <linux/pm_qos.h>
#include "pci.h"
-static DEFINE_MUTEX(pci_acpi_pm_notify_mtx);
-
/**
* pci_acpi_wake_bus - Wake-up notification handler for root buses.
* @handle: ACPI handle of a device the notification is for.
@@ -68,67 +67,6 @@ static void pci_acpi_wake_dev(acpi_handle handle, u32 event, void *context)
}
/**
- * add_pm_notifier - Register PM notifier for given ACPI device.
- * @dev: ACPI device to add the notifier for.
- * @context: PCI device or bus to check for PME status if an event is signaled.
- *
- * NOTE: @dev need not be a run-wake or wake-up device to be a valid source of
- * PM wake-up events. For example, wake-up events may be generated for bridges
- * if one of the devices below the bridge is signaling PME, even if the bridge
- * itself doesn't have a wake-up GPE associated with it.
- */
-static acpi_status add_pm_notifier(struct acpi_device *dev,
- acpi_notify_handler handler,
- void *context)
-{
- acpi_status status = AE_ALREADY_EXISTS;
-
- mutex_lock(&pci_acpi_pm_notify_mtx);
-
- if (dev->wakeup.flags.notifier_present)
- goto out;
-
- status = acpi_install_notify_handler(dev->handle,
- ACPI_SYSTEM_NOTIFY,
- handler, context);
- if (ACPI_FAILURE(status))
- goto out;
-
- dev->wakeup.flags.notifier_present = true;
-
- out:
- mutex_unlock(&pci_acpi_pm_notify_mtx);
- return status;
-}
-
-/**
- * remove_pm_notifier - Unregister PM notifier from given ACPI device.
- * @dev: ACPI device to remove the notifier from.
- */
-static acpi_status remove_pm_notifier(struct acpi_device *dev,
- acpi_notify_handler handler)
-{
- acpi_status status = AE_BAD_PARAMETER;
-
- mutex_lock(&pci_acpi_pm_notify_mtx);
-
- if (!dev->wakeup.flags.notifier_present)
- goto out;
-
- status = acpi_remove_notify_handler(dev->handle,
- ACPI_SYSTEM_NOTIFY,
- handler);
- if (ACPI_FAILURE(status))
- goto out;
-
- dev->wakeup.flags.notifier_present = false;
-
- out:
- mutex_unlock(&pci_acpi_pm_notify_mtx);
- return status;
-}
-
-/**
* pci_acpi_add_bus_pm_notifier - Register PM notifier for given PCI bus.
* @dev: ACPI device to add the notifier for.
* @pci_bus: PCI bus to walk checking for PME status if an event is signaled.
@@ -136,7 +74,7 @@ static acpi_status remove_pm_notifier(struct acpi_device *dev,
acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev,
struct pci_bus *pci_bus)
{
- return add_pm_notifier(dev, pci_acpi_wake_bus, pci_bus);
+ return acpi_add_pm_notifier(dev, pci_acpi_wake_bus, pci_bus);
}
/**
@@ -145,7 +83,7 @@ acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev,
*/
acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev)
{
- return remove_pm_notifier(dev, pci_acpi_wake_bus);
+ return acpi_remove_pm_notifier(dev, pci_acpi_wake_bus);
}
/**
@@ -156,7 +94,7 @@ acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev)
acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
struct pci_dev *pci_dev)
{
- return add_pm_notifier(dev, pci_acpi_wake_dev, pci_dev);
+ return acpi_add_pm_notifier(dev, pci_acpi_wake_dev, pci_dev);
}
/**
@@ -165,7 +103,7 @@ acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
*/
acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev)
{
- return remove_pm_notifier(dev, pci_acpi_wake_dev);
+ return acpi_remove_pm_notifier(dev, pci_acpi_wake_dev);
}
phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle)
@@ -257,11 +195,16 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
return -ENODEV;
switch (state) {
+ case PCI_D3cold:
+ if (dev_pm_qos_flags(&dev->dev, PM_QOS_FLAG_NO_POWER_OFF) ==
+ PM_QOS_FLAGS_ALL) {
+ error = -EBUSY;
+ break;
+ }
case PCI_D0:
case PCI_D1:
case PCI_D2:
case PCI_D3hot:
- case PCI_D3cold:
error = acpi_bus_set_power(handle, state_conv[state]);
}
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 94c6e2a..f79cbcd 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -89,10 +89,6 @@ static void pci_free_dynids(struct pci_driver *drv)
spin_unlock(&drv->dynids.lock);
}
-/*
- * Dynamic device ID manipulation via sysfs is disabled for !CONFIG_HOTPLUG
- */
-#ifdef CONFIG_HOTPLUG
/**
* store_new_id - sysfs frontend to pci_add_dynid()
* @driver: target device driver
@@ -191,10 +187,6 @@ static struct driver_attribute pci_drv_attrs[] = {
__ATTR_NULL,
};
-#else
-#define pci_drv_attrs NULL
-#endif /* CONFIG_HOTPLUG */
-
/**
* pci_match_id - See if a pci device matches a given pci_id table
* @ids: array of PCI device id structures to search in
@@ -256,31 +248,26 @@ struct drv_dev_and_id {
static long local_pci_probe(void *_ddi)
{
struct drv_dev_and_id *ddi = _ddi;
- struct device *dev = &ddi->dev->dev;
- struct device *parent = dev->parent;
+ struct pci_dev *pci_dev = ddi->dev;
+ struct pci_driver *pci_drv = ddi->drv;
+ struct device *dev = &pci_dev->dev;
int rc;
- /* The parent bridge must be in active state when probing */
- if (parent)
- pm_runtime_get_sync(parent);
- /* Unbound PCI devices are always set to disabled and suspended.
- * During probe, the device is set to enabled and active and the
- * usage count is incremented. If the driver supports runtime PM,
- * it should call pm_runtime_put_noidle() in its probe routine and
- * pm_runtime_get_noresume() in its remove routine.
+ /*
+ * Unbound PCI devices are always put in D0, regardless of
+ * runtime PM status. During probe, the device is set to
+ * active and the usage count is incremented. If the driver
+ * supports runtime PM, it should call pm_runtime_put_noidle()
+ * in its probe routine and pm_runtime_get_noresume() in its
+ * remove routine.
*/
- pm_runtime_get_noresume(dev);
- pm_runtime_set_active(dev);
- pm_runtime_enable(dev);
-
- rc = ddi->drv->probe(ddi->dev, ddi->id);
+ pm_runtime_get_sync(dev);
+ pci_dev->driver = pci_drv;
+ rc = pci_drv->probe(pci_dev, ddi->id);
if (rc) {
- pm_runtime_disable(dev);
- pm_runtime_set_suspended(dev);
- pm_runtime_put_noidle(dev);
+ pci_dev->driver = NULL;
+ pm_runtime_put_sync(dev);
}
- if (parent)
- pm_runtime_put(parent);
return rc;
}
@@ -330,10 +317,8 @@ __pci_device_probe(struct pci_driver *drv, struct pci_dev *pci_dev)
id = pci_match_device(drv, pci_dev);
if (id)
error = pci_call_probe(drv, pci_dev, id);
- if (error >= 0) {
- pci_dev->driver = drv;
+ if (error >= 0)
error = 0;
- }
}
return error;
}
@@ -369,9 +354,7 @@ static int pci_device_remove(struct device * dev)
}
/* Undo the runtime PM settings in local_pci_probe() */
- pm_runtime_disable(dev);
- pm_runtime_set_suspended(dev);
- pm_runtime_put_noidle(dev);
+ pm_runtime_put_sync(dev);
/*
* If the device is still on, set the power state as "unknown",
@@ -398,6 +381,8 @@ static void pci_device_shutdown(struct device *dev)
struct pci_dev *pci_dev = to_pci_dev(dev);
struct pci_driver *drv = pci_dev->driver;
+ pm_runtime_resume(dev);
+
if (drv && drv->shutdown)
drv->shutdown(pci_dev);
pci_msi_shutdown(pci_dev);
@@ -408,16 +393,6 @@ static void pci_device_shutdown(struct device *dev)
* continue to do DMA
*/
pci_disable_device(pci_dev);
-
- /*
- * Devices may be enabled to wake up by runtime PM, but they need not
- * be supposed to wake up the system from its "power off" state (e.g.
- * ACPI S5). Therefore disable wakeup for all devices that aren't
- * supposed to wake up the system at this point. The state argument
- * will be ignored by pci_enable_wake().
- */
- if (!device_may_wakeup(dev))
- pci_enable_wake(pci_dev, PCI_UNKNOWN, false);
}
#ifdef CONFIG_PM
@@ -1002,6 +977,13 @@ static int pci_pm_runtime_suspend(struct device *dev)
pci_power_t prev = pci_dev->current_state;
int error;
+ /*
+ * If pci_dev->driver is not set (unbound), the device should
+ * always remain in D0 regardless of the runtime PM status
+ */
+ if (!pci_dev->driver)
+ return 0;
+
if (!pm || !pm->runtime_suspend)
return -ENOSYS;
@@ -1023,10 +1005,10 @@ static int pci_pm_runtime_suspend(struct device *dev)
return 0;
}
- if (!pci_dev->state_saved)
+ if (!pci_dev->state_saved) {
pci_save_state(pci_dev);
-
- pci_finish_runtime_suspend(pci_dev);
+ pci_finish_runtime_suspend(pci_dev);
+ }
return 0;
}
@@ -1037,6 +1019,13 @@ static int pci_pm_runtime_resume(struct device *dev)
struct pci_dev *pci_dev = to_pci_dev(dev);
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+ /*
+ * If pci_dev->driver is not set (unbound), the device should
+ * always remain in D0 regardless of the runtime PM status
+ */
+ if (!pci_dev->driver)
+ return 0;
+
if (!pm || !pm->runtime_resume)
return -ENOSYS;
@@ -1054,8 +1043,16 @@ static int pci_pm_runtime_resume(struct device *dev)
static int pci_pm_runtime_idle(struct device *dev)
{
+ struct pci_dev *pci_dev = to_pci_dev(dev);
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+ /*
+ * If pci_dev->driver is not set (unbound), the device should
+ * always remain in D0 regardless of the runtime PM status
+ */
+ if (!pci_dev->driver)
+ goto out;
+
if (!pm)
return -ENOSYS;
@@ -1065,8 +1062,8 @@ static int pci_pm_runtime_idle(struct device *dev)
return ret;
}
+out:
pm_runtime_suspend(dev);
-
return 0;
}
@@ -1231,12 +1228,38 @@ void pci_dev_put(struct pci_dev *dev)
put_device(&dev->dev);
}
-#ifndef CONFIG_HOTPLUG
-int pci_uevent(struct device *dev, struct kobj_uevent_env *env)
+static int pci_uevent(struct device *dev, struct kobj_uevent_env *env)
{
- return -ENODEV;
+ struct pci_dev *pdev;
+
+ if (!dev)
+ return -ENODEV;
+
+ pdev = to_pci_dev(dev);
+ if (!pdev)
+ return -ENODEV;
+
+ if (add_uevent_var(env, "PCI_CLASS=%04X", pdev->class))
+ return -ENOMEM;
+
+ if (add_uevent_var(env, "PCI_ID=%04X:%04X", pdev->vendor, pdev->device))
+ return -ENOMEM;
+
+ if (add_uevent_var(env, "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
+ pdev->subsystem_device))
+ return -ENOMEM;
+
+ if (add_uevent_var(env, "PCI_SLOT_NAME=%s", pci_name(pdev)))
+ return -ENOMEM;
+
+ if (add_uevent_var(env, "MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x",
+ pdev->vendor, pdev->device,
+ pdev->subsystem_vendor, pdev->subsystem_device,
+ (u8)(pdev->class >> 16), (u8)(pdev->class >> 8),
+ (u8)(pdev->class)))
+ return -ENOMEM;
+ return 0;
}
-#endif
struct bus_type pci_bus_type = {
.name = "pci",
diff --git a/drivers/pci/pci-stub.c b/drivers/pci/pci-stub.c
index 775e933..6e47c51 100644
--- a/drivers/pci/pci-stub.c
+++ b/drivers/pci/pci-stub.c
@@ -28,7 +28,7 @@ MODULE_PARM_DESC(ids, "Initial PCI IDs to add to the stub driver, format is "
static int pci_stub_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
- dev_printk(KERN_INFO, &dev->dev, "claimed by stub\n");
+ dev_info(&dev->dev, "claimed by stub\n");
return 0;
}
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 02d107b..9c6e9bb 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -284,7 +284,6 @@ msi_bus_store(struct device *dev, struct device_attribute *attr,
return count;
}
-#ifdef CONFIG_HOTPLUG
static DEFINE_MUTEX(pci_remove_rescan_mutex);
static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf,
size_t count)
@@ -377,8 +376,6 @@ dev_bus_rescan_store(struct device *dev, struct device_attribute *attr,
return count;
}
-#endif
-
#if defined(CONFIG_PM_RUNTIME) && defined(CONFIG_ACPI)
static ssize_t d3cold_allowed_store(struct device *dev,
struct device_attribute *attr,
@@ -404,6 +401,89 @@ static ssize_t d3cold_allowed_show(struct device *dev,
}
#endif
+#ifdef CONFIG_PCI_IOV
+static ssize_t sriov_totalvfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pci_sriov_get_totalvfs(pdev));
+}
+
+
+static ssize_t sriov_numvfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->num_VFs);
+}
+
+/*
+ * num_vfs > 0; number of VFs to enable
+ * num_vfs = 0; disable all VFs
+ *
+ * Note: SRIOV spec doesn't allow partial VF
+ * disable, so it's all or none.
+ */
+static ssize_t sriov_numvfs_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ int ret;
+ u16 num_vfs;
+
+ ret = kstrtou16(buf, 0, &num_vfs);
+ if (ret < 0)
+ return ret;
+
+ if (num_vfs > pci_sriov_get_totalvfs(pdev))
+ return -ERANGE;
+
+ if (num_vfs == pdev->sriov->num_VFs)
+ return count; /* no change */
+
+ /* is PF driver loaded w/callback */
+ if (!pdev->driver || !pdev->driver->sriov_configure) {
+ dev_info(&pdev->dev, "Driver doesn't support SRIOV configuration via sysfs\n");
+ return -ENOSYS;
+ }
+
+ if (num_vfs == 0) {
+ /* disable VFs */
+ ret = pdev->driver->sriov_configure(pdev, 0);
+ if (ret < 0)
+ return ret;
+ return count;
+ }
+
+ /* enable VFs */
+ if (pdev->sriov->num_VFs) {
+ dev_warn(&pdev->dev, "%d VFs already enabled. Disable before enabling %d VFs\n",
+ pdev->sriov->num_VFs, num_vfs);
+ return -EBUSY;
+ }
+
+ ret = pdev->driver->sriov_configure(pdev, num_vfs);
+ if (ret < 0)
+ return ret;
+
+ if (ret != num_vfs)
+ dev_warn(&pdev->dev, "%d VFs requested; only %d enabled\n",
+ num_vfs, ret);
+
+ return count;
+}
+
+static struct device_attribute sriov_totalvfs_attr = __ATTR_RO(sriov_totalvfs);
+static struct device_attribute sriov_numvfs_attr =
+ __ATTR(sriov_numvfs, (S_IRUGO|S_IWUSR|S_IWGRP),
+ sriov_numvfs_show, sriov_numvfs_store);
+#endif /* CONFIG_PCI_IOV */
+
struct device_attribute pci_dev_attrs[] = {
__ATTR_RO(resource),
__ATTR_RO(vendor),
@@ -424,10 +504,8 @@ struct device_attribute pci_dev_attrs[] = {
__ATTR(broken_parity_status,(S_IRUGO|S_IWUSR),
broken_parity_status_show,broken_parity_status_store),
__ATTR(msi_bus, 0644, msi_bus_show, msi_bus_store),
-#ifdef CONFIG_HOTPLUG
__ATTR(remove, (S_IWUSR|S_IWGRP), NULL, remove_store),
__ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, dev_rescan_store),
-#endif
#if defined(CONFIG_PM_RUNTIME) && defined(CONFIG_ACPI)
__ATTR(d3cold_allowed, 0644, d3cold_allowed_show, d3cold_allowed_store),
#endif
@@ -435,9 +513,7 @@ struct device_attribute pci_dev_attrs[] = {
};
struct device_attribute pcibus_dev_attrs[] = {
-#ifdef CONFIG_HOTPLUG
__ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, dev_bus_rescan_store),
-#endif
__ATTR(cpuaffinity, S_IRUGO, pci_bus_show_cpumaskaffinity, NULL),
__ATTR(cpulistaffinity, S_IRUGO, pci_bus_show_cpulistaffinity, NULL),
__ATTR_NULL,
@@ -458,40 +534,6 @@ boot_vga_show(struct device *dev, struct device_attribute *attr, char *buf)
}
struct device_attribute vga_attr = __ATTR_RO(boot_vga);
-static void
-pci_config_pm_runtime_get(struct pci_dev *pdev)
-{
- struct device *dev = &pdev->dev;
- struct device *parent = dev->parent;
-
- if (parent)
- pm_runtime_get_sync(parent);
- pm_runtime_get_noresume(dev);
- /*
- * pdev->current_state is set to PCI_D3cold during suspending,
- * so wait until suspending completes
- */
- pm_runtime_barrier(dev);
- /*
- * Only need to resume devices in D3cold, because config
- * registers are still accessible for devices suspended but
- * not in D3cold.
- */
- if (pdev->current_state == PCI_D3cold)
- pm_runtime_resume(dev);
-}
-
-static void
-pci_config_pm_runtime_put(struct pci_dev *pdev)
-{
- struct device *dev = &pdev->dev;
- struct device *parent = dev->parent;
-
- pm_runtime_put(dev);
- if (parent)
- pm_runtime_put_sync(parent);
-}
-
static ssize_t
pci_read_config(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
@@ -1303,29 +1345,20 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
pdev->rom_attr = attr;
}
- if ((pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA) {
- retval = device_create_file(&pdev->dev, &vga_attr);
- if (retval)
- goto err_rom_file;
- }
-
/* add platform-specific attributes */
retval = pcibios_add_platform_entries(pdev);
if (retval)
- goto err_vga_file;
+ goto err_rom_file;
/* add sysfs entries for various capabilities */
retval = pci_create_capabilities_sysfs(pdev);
if (retval)
- goto err_vga_file;
+ goto err_rom_file;
pci_create_firmware_label_files(pdev);
return 0;
-err_vga_file:
- if ((pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
- device_remove_file(&pdev->dev, &vga_attr);
err_rom_file:
if (rom_size) {
sysfs_remove_bin_file(&pdev->dev.kobj, pdev->rom_attr);
@@ -1411,3 +1444,62 @@ static int __init pci_sysfs_init(void)
}
late_initcall(pci_sysfs_init);
+
+static struct attribute *pci_dev_dev_attrs[] = {
+ &vga_attr.attr,
+ NULL,
+};
+
+static umode_t pci_dev_attrs_are_visible(struct kobject *kobj,
+ struct attribute *a, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ if (a == &vga_attr.attr)
+ if ((pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+ return 0;
+
+ return a->mode;
+}
+
+#ifdef CONFIG_PCI_IOV
+static struct attribute *sriov_dev_attrs[] = {
+ &sriov_totalvfs_attr.attr,
+ &sriov_numvfs_attr.attr,
+ NULL,
+};
+
+static umode_t sriov_attrs_are_visible(struct kobject *kobj,
+ struct attribute *a, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+
+ if (!dev_is_pf(dev))
+ return 0;
+
+ return a->mode;
+}
+
+static struct attribute_group sriov_dev_attr_group = {
+ .attrs = sriov_dev_attrs,
+ .is_visible = sriov_attrs_are_visible,
+};
+#endif /* CONFIG_PCI_IOV */
+
+static struct attribute_group pci_dev_attr_group = {
+ .attrs = pci_dev_dev_attrs,
+ .is_visible = pci_dev_attrs_are_visible,
+};
+
+static const struct attribute_group *pci_dev_attr_groups[] = {
+ &pci_dev_attr_group,
+#ifdef CONFIG_PCI_IOV
+ &sriov_dev_attr_group,
+#endif
+ NULL,
+};
+
+struct device_type pci_dev_type = {
+ .groups = pci_dev_attr_groups,
+};
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 5485883..5cb5820 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -86,7 +86,7 @@ enum pcie_bus_config_types pcie_bus_config = PCIE_BUS_TUNE_OFF;
* the dfl or actual value as it sees fit. Don't forget this is
* measured in 32-bit words, not bytes.
*/
-u8 pci_dfl_cache_line_size __devinitdata = L1_CACHE_BYTES >> 2;
+u8 pci_dfl_cache_line_size = L1_CACHE_BYTES >> 2;
u8 pci_cache_line_size;
/*
@@ -1333,6 +1333,19 @@ void pcim_pin_device(struct pci_dev *pdev)
dr->pinned = 1;
}
+/*
+ * pcibios_add_device - provide arch specific hooks when adding device dev
+ * @dev: the PCI device being added
+ *
+ * Permits the platform to provide architecture specific functionality when
+ * devices are added. This is the default implementation. Architecture
+ * implementations can override this.
+ */
+int __weak pcibios_add_device (struct pci_dev *dev)
+{
+ return 0;
+}
+
/**
* pcibios_disable_device - disable arch specific PCI resources for device dev
* @dev: the PCI device to disable
@@ -1578,15 +1591,25 @@ void pci_pme_active(struct pci_dev *dev, bool enable)
pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, pmcsr);
- /* PCI (as opposed to PCIe) PME requires that the device have
- its PME# line hooked up correctly. Not all hardware vendors
- do this, so the PME never gets delivered and the device
- remains asleep. The easiest way around this is to
- periodically walk the list of suspended devices and check
- whether any have their PME flag set. The assumption is that
- we'll wake up often enough anyway that this won't be a huge
- hit, and the power savings from the devices will still be a
- win. */
+ /*
+ * PCI (as opposed to PCIe) PME requires that the device have
+ * its PME# line hooked up correctly. Not all hardware vendors
+ * do this, so the PME never gets delivered and the device
+ * remains asleep. The easiest way around this is to
+ * periodically walk the list of suspended devices and check
+ * whether any have their PME flag set. The assumption is that
+ * we'll wake up often enough anyway that this won't be a huge
+ * hit, and the power savings from the devices will still be a
+ * win.
+ *
+ * Although PCIe uses in-band PME message instead of PME# line
+ * to report PME, PME does not work for some PCIe devices in
+ * reality. For example, there are devices that set their PME
+ * status bits, but don't really bother to send a PME message;
+ * there are PCI Express Root Ports that don't bother to
+ * trigger interrupts when they receive PME messages from the
+ * devices below. So PME poll is used for PCIe devices too.
+ */
if (dev->pme_poll) {
struct pci_pme_device *pme_dev;
@@ -1858,6 +1881,38 @@ bool pci_dev_run_wake(struct pci_dev *dev)
}
EXPORT_SYMBOL_GPL(pci_dev_run_wake);
+void pci_config_pm_runtime_get(struct pci_dev *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device *parent = dev->parent;
+
+ if (parent)
+ pm_runtime_get_sync(parent);
+ pm_runtime_get_noresume(dev);
+ /*
+ * pdev->current_state is set to PCI_D3cold during suspending,
+ * so wait until suspending completes
+ */
+ pm_runtime_barrier(dev);
+ /*
+ * Only need to resume devices in D3cold, because config
+ * registers are still accessible for devices suspended but
+ * not in D3cold.
+ */
+ if (pdev->current_state == PCI_D3cold)
+ pm_runtime_resume(dev);
+}
+
+void pci_config_pm_runtime_put(struct pci_dev *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device *parent = dev->parent;
+
+ pm_runtime_put(dev);
+ if (parent)
+ pm_runtime_put_sync(parent);
+}
+
/**
* pci_pm_init - Initialize PM functions of given PCI device
* @dev: PCI device to handle.
@@ -1868,6 +1923,8 @@ void pci_pm_init(struct pci_dev *dev)
u16 pmc;
pm_runtime_forbid(&dev->dev);
+ pm_runtime_set_active(&dev->dev);
+ pm_runtime_enable(&dev->dev);
device_enable_async_suspend(&dev->dev);
dev->wakeup_prepared = false;
@@ -3825,7 +3882,7 @@ static int __init pci_resource_alignment_sysfs_init(void)
late_initcall(pci_resource_alignment_sysfs_init);
-static void __devinit pci_no_domains(void)
+static void pci_no_domains(void)
{
#ifdef CONFIG_PCI_DOMAINS
pci_domains_supported = 0;
@@ -3833,14 +3890,13 @@ static void __devinit pci_no_domains(void)
}
/**
- * pci_ext_cfg_enabled - can we access extended PCI config space?
- * @dev: The PCI device of the root bridge.
+ * pci_ext_cfg_avail - can we access extended PCI config space?
*
* Returns 1 if we can access PCI extended config space (offsets
* greater than 0xff). This is the default implementation. Architecture
* implementations can override this.
*/
-int __weak pci_ext_cfg_avail(struct pci_dev *dev)
+int __weak pci_ext_cfg_avail(void)
{
return 1;
}
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index bacbcba..e851829 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -8,7 +8,6 @@
/* Functions internal to the PCI core code */
-extern int pci_uevent(struct device *dev, struct kobj_uevent_env *env);
extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
#if !defined(CONFIG_DMI) && !defined(CONFIG_ACPI)
@@ -72,6 +71,8 @@ extern void pci_disable_enabled_device(struct pci_dev *dev);
extern int pci_finish_runtime_suspend(struct pci_dev *dev);
extern int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
extern void pci_wakeup_bus(struct pci_bus *bus);
+extern void pci_config_pm_runtime_get(struct pci_dev *dev);
+extern void pci_config_pm_runtime_put(struct pci_dev *dev);
extern void pci_pm_init(struct pci_dev *dev);
extern void platform_pci_wakeup_init(struct pci_dev *dev);
extern void pci_allocate_cap_save_buffers(struct pci_dev *dev);
@@ -157,11 +158,8 @@ static inline int pci_no_d1d2(struct pci_dev *dev)
}
extern struct device_attribute pci_dev_attrs[];
extern struct device_attribute pcibus_dev_attrs[];
-#ifdef CONFIG_HOTPLUG
+extern struct device_type pci_dev_type;
extern struct bus_attribute pci_bus_attrs[];
-#else
-#define pci_bus_attrs NULL
-#endif
/**
@@ -232,13 +230,14 @@ struct pci_sriov {
int nres; /* number of resources */
u32 cap; /* SR-IOV Capabilities */
u16 ctrl; /* SR-IOV Control */
- u16 total; /* total VFs associated with the PF */
- u16 initial; /* initial VFs associated with the PF */
- u16 nr_virtfn; /* number of VFs available */
+ u16 total_VFs; /* total VFs associated with the PF */
+ u16 initial_VFs; /* initial VFs associated with the PF */
+ u16 num_VFs; /* number of VFs available */
u16 offset; /* first VF Routing ID offset */
u16 stride; /* following VF stride */
u32 pgsz; /* page size for BAR alignment */
u8 link; /* Function Dependency Link */
+ u16 driver_max_VFs; /* max num VFs driver supports */
struct pci_dev *dev; /* lowest numbered PF */
struct pci_dev *self; /* this PF */
struct mutex lock; /* lock for VF bus */
diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig
index 6c8bc58..fde4a32 100644
--- a/drivers/pci/pcie/Kconfig
+++ b/drivers/pci/pcie/Kconfig
@@ -82,4 +82,4 @@ endchoice
config PCIE_PME
def_bool y
- depends on PCIEPORTBUS && PM_RUNTIME && EXPERIMENTAL && ACPI
+ depends on PCIEPORTBUS && PM_RUNTIME && ACPI
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index 030cf12..76ef634 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -41,7 +41,7 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-static int __devinit aer_probe(struct pcie_device *dev);
+static int aer_probe(struct pcie_device *dev);
static void aer_remove(struct pcie_device *dev);
static pci_ers_result_t aer_error_detected(struct pci_dev *dev,
enum pci_channel_state error);
@@ -300,7 +300,7 @@ static void aer_remove(struct pcie_device *dev)
*
* Invoked when PCI Express bus loads AER service driver.
*/
-static int __devinit aer_probe(struct pcie_device *dev)
+static int aer_probe(struct pcie_device *dev)
{
int status;
struct aer_rpc *rpc;
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h
index 94a7598..22f840f 100644
--- a/drivers/pci/pcie/aer/aerdrv.h
+++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -87,6 +87,9 @@ struct aer_broadcast_data {
static inline pci_ers_result_t merge_result(enum pci_ers_result orig,
enum pci_ers_result new)
{
+ if (new == PCI_ERS_RESULT_NO_AER_DRIVER)
+ return PCI_ERS_RESULT_NO_AER_DRIVER;
+
if (new == PCI_ERS_RESULT_NONE)
return orig;
@@ -97,7 +100,7 @@ static inline pci_ers_result_t merge_result(enum pci_ers_result orig,
break;
case PCI_ERS_RESULT_DISCONNECT:
if (new == PCI_ERS_RESULT_NEED_RESET)
- orig = new;
+ orig = PCI_ERS_RESULT_NEED_RESET;
break;
default:
break;
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 06bad96..564d97f 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -213,6 +213,7 @@ static int report_error_detected(struct pci_dev *dev, void *data)
struct aer_broadcast_data *result_data;
result_data = (struct aer_broadcast_data *) data;
+ device_lock(&dev->dev);
dev->error_state = result_data->state;
if (!dev->driver ||
@@ -231,12 +232,28 @@ static int report_error_detected(struct pci_dev *dev, void *data)
dev->driver ?
"no AER-aware driver" : "no driver");
}
- return 0;
+
+ /*
+ * If there's any device in the subtree that does not
+ * have an error_detected callback, returning
+ * PCI_ERS_RESULT_NO_AER_DRIVER prevents calling of
+ * the subsequent mmio_enabled/slot_reset/resume
+ * callbacks of "any" device in the subtree. All the
+ * devices in the subtree are left in the error state
+ * without recovery.
+ */
+
+ if (!(dev->hdr_type & PCI_HEADER_TYPE_BRIDGE))
+ vote = PCI_ERS_RESULT_NO_AER_DRIVER;
+ else
+ vote = PCI_ERS_RESULT_NONE;
+ } else {
+ err_handler = dev->driver->err_handler;
+ vote = err_handler->error_detected(dev, result_data->state);
}
- err_handler = dev->driver->err_handler;
- vote = err_handler->error_detected(dev, result_data->state);
result_data->result = merge_result(result_data->result, vote);
+ device_unlock(&dev->dev);
return 0;
}
@@ -247,14 +264,17 @@ static int report_mmio_enabled(struct pci_dev *dev, void *data)
struct aer_broadcast_data *result_data;
result_data = (struct aer_broadcast_data *) data;
+ device_lock(&dev->dev);
if (!dev->driver ||
!dev->driver->err_handler ||
!dev->driver->err_handler->mmio_enabled)
- return 0;
+ goto out;
err_handler = dev->driver->err_handler;
vote = err_handler->mmio_enabled(dev);
result_data->result = merge_result(result_data->result, vote);
+out:
+ device_unlock(&dev->dev);
return 0;
}
@@ -265,14 +285,17 @@ static int report_slot_reset(struct pci_dev *dev, void *data)
struct aer_broadcast_data *result_data;
result_data = (struct aer_broadcast_data *) data;
+ device_lock(&dev->dev);
if (!dev->driver ||
!dev->driver->err_handler ||
!dev->driver->err_handler->slot_reset)
- return 0;
+ goto out;
err_handler = dev->driver->err_handler;
vote = err_handler->slot_reset(dev);
result_data->result = merge_result(result_data->result, vote);
+out:
+ device_unlock(&dev->dev);
return 0;
}
@@ -280,15 +303,18 @@ static int report_resume(struct pci_dev *dev, void *data)
{
const struct pci_error_handlers *err_handler;
+ device_lock(&dev->dev);
dev->error_state = pci_channel_io_normal;
if (!dev->driver ||
!dev->driver->err_handler ||
!dev->driver->err_handler->resume)
- return 0;
+ goto out;
err_handler = dev->driver->err_handler;
err_handler->resume(dev);
+out:
+ device_unlock(&dev->dev);
return 0;
}
@@ -604,6 +630,7 @@ static void aer_recover_work_func(struct work_struct *work)
continue;
}
do_recovery(pdev, entry.severity);
+ pci_dev_put(pdev);
}
}
#endif
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 213753b..8474b6a 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -242,8 +242,7 @@ static void pcie_aspm_configure_common_clock(struct pcie_link_state *link)
return;
/* Training failed. Restore common clock configurations */
- dev_printk(KERN_ERR, &parent->dev,
- "ASPM: Could not configure common clock\n");
+ dev_err(&parent->dev, "ASPM: Could not configure common clock\n");
list_for_each_entry(child, &linkbus->devices, bus_list)
pcie_capability_write_word(child, PCI_EXP_LNKCTL,
child_reg[PCI_FUNC(child->devfn)]);
@@ -427,7 +426,8 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
static void pcie_config_aspm_dev(struct pci_dev *pdev, u32 val)
{
- pcie_capability_clear_and_set_word(pdev, PCI_EXP_LNKCTL, 0x3, val);
+ pcie_capability_clear_and_set_word(pdev, PCI_EXP_LNKCTL,
+ PCI_EXP_LNKCTL_ASPMC, val);
}
static void pcie_config_aspm_link(struct pcie_link_state *link, u32 state)
@@ -442,12 +442,12 @@ static void pcie_config_aspm_link(struct pcie_link_state *link, u32 state)
return;
/* Convert ASPM state to upstream/downstream ASPM register state */
if (state & ASPM_STATE_L0S_UP)
- dwstream |= PCIE_LINK_STATE_L0S;
+ dwstream |= PCI_EXP_LNKCTL_ASPM_L0S;
if (state & ASPM_STATE_L0S_DW)
- upstream |= PCIE_LINK_STATE_L0S;
+ upstream |= PCI_EXP_LNKCTL_ASPM_L0S;
if (state & ASPM_STATE_L1) {
- upstream |= PCIE_LINK_STATE_L1;
- dwstream |= PCIE_LINK_STATE_L1;
+ upstream |= PCI_EXP_LNKCTL_ASPM_L1;
+ dwstream |= PCI_EXP_LNKCTL_ASPM_L1;
}
/*
* Spec 2.0 suggests all functions should be configured the
@@ -507,9 +507,7 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev)
*/
pcie_capability_read_dword(child, PCI_EXP_DEVCAP, &reg32);
if (!(reg32 & PCI_EXP_DEVCAP_RBER) && !aspm_force) {
- dev_printk(KERN_INFO, &child->dev, "disabling ASPM"
- " on pre-1.1 PCIe device. You can enable it"
- " with 'pcie_aspm=force'\n");
+ dev_info(&child->dev, "disabling ASPM on pre-1.1 PCIe device. You can enable it with 'pcie_aspm=force'\n");
return -EINVAL;
}
}
@@ -773,6 +771,9 @@ void pcie_clear_aspm(struct pci_bus *bus)
{
struct pci_dev *child;
+ if (aspm_force)
+ return;
+
/*
* Clear any ASPM setup that the firmware has carried out on this bus
*/
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index d03a7a3..b42133a 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -120,8 +120,7 @@ static int pcie_port_enable_msix(struct pci_dev *dev, int *vectors, int mask)
* the value in this field indicates which MSI-X Table entry is
* used to generate the interrupt message."
*/
- pos = pci_pcie_cap(dev);
- pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &reg16);
+ pcie_capability_read_word(dev, PCI_EXP_FLAGS, &reg16);
entry = (reg16 & PCI_EXP_FLAGS_IRQ) >> 9;
if (entry >= nr_entries)
goto Error;
@@ -272,7 +271,8 @@ static int get_port_device_capability(struct pci_dev *dev)
}
/* Hot-Plug Capable */
- if (cap_mask & PCIE_PORT_SERVICE_HP) {
+ if ((cap_mask & PCIE_PORT_SERVICE_HP) &&
+ dev->pcie_flags_reg & PCI_EXP_FLAGS_SLOT) {
pcie_capability_read_dword(dev, PCI_EXP_SLTCAP, &reg32);
if (reg32 & PCI_EXP_SLTCAP_HPC) {
services |= PCIE_PORT_SERVICE_HP;
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 0761d90..08c243a 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -134,10 +134,28 @@ static int pcie_port_runtime_resume(struct device *dev)
return 0;
}
+static int pci_dev_pme_poll(struct pci_dev *pdev, void *data)
+{
+ bool *pme_poll = data;
+
+ if (pdev->pme_poll)
+ *pme_poll = true;
+ return 0;
+}
+
static int pcie_port_runtime_idle(struct device *dev)
{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ bool pme_poll = false;
+
+ /*
+ * If any subordinate device needs pme poll, we should keep
+ * the port in D0, because we need port in D0 to poll it.
+ */
+ pci_walk_bus(pdev->subordinate, pci_dev_pme_poll, &pme_poll);
/* Delay for a short while to prevent too frequent suspend/resume */
- pm_schedule_suspend(dev, 10);
+ if (!pme_poll)
+ pm_schedule_suspend(dev, 10);
return -EBUSY;
}
#else
@@ -182,7 +200,7 @@ static const struct pci_device_id port_runtime_pm_black_list[] = {
* this port device.
*
*/
-static int __devinit pcie_portdrv_probe(struct pci_dev *dev,
+static int pcie_portdrv_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
int status;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index ec909af..6186f03 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -305,7 +305,7 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
}
}
-static void __devinit pci_read_bridge_io(struct pci_bus *child)
+static void pci_read_bridge_io(struct pci_bus *child)
{
struct pci_dev *dev = child->self;
u8 io_base_lo, io_limit_lo;
@@ -345,7 +345,7 @@ static void __devinit pci_read_bridge_io(struct pci_bus *child)
}
}
-static void __devinit pci_read_bridge_mmio(struct pci_bus *child)
+static void pci_read_bridge_mmio(struct pci_bus *child)
{
struct pci_dev *dev = child->self;
u16 mem_base_lo, mem_limit_lo;
@@ -367,7 +367,7 @@ static void __devinit pci_read_bridge_mmio(struct pci_bus *child)
}
}
-static void __devinit pci_read_bridge_mmio_pref(struct pci_bus *child)
+static void pci_read_bridge_mmio_pref(struct pci_bus *child)
{
struct pci_dev *dev = child->self;
u16 mem_base_lo, mem_limit_lo;
@@ -417,7 +417,7 @@ static void __devinit pci_read_bridge_mmio_pref(struct pci_bus *child)
}
}
-void __devinit pci_read_bridge_bases(struct pci_bus *child)
+void pci_read_bridge_bases(struct pci_bus *child)
{
struct pci_dev *dev = child->self;
struct resource *res;
@@ -521,7 +521,7 @@ static unsigned char pcie_link_speed[] = {
void pcie_update_link_speed(struct pci_bus *bus, u16 linksta)
{
- bus->cur_bus_speed = pcie_link_speed[linksta & 0xf];
+ bus->cur_bus_speed = pcie_link_speed[linksta & PCI_EXP_LNKSTA_CLS];
}
EXPORT_SYMBOL_GPL(pcie_update_link_speed);
@@ -579,14 +579,16 @@ static void pci_set_bus_speed(struct pci_bus *bus)
if (pos) {
u16 status;
enum pci_bus_speed max;
- pci_read_config_word(bridge, pos + 2, &status);
- if (status & 0x8000) {
+ pci_read_config_word(bridge, pos + PCI_X_BRIDGE_SSTATUS,
+ &status);
+
+ if (status & PCI_X_SSTATUS_533MHZ) {
max = PCI_SPEED_133MHz_PCIX_533;
- } else if (status & 0x4000) {
+ } else if (status & PCI_X_SSTATUS_266MHZ) {
max = PCI_SPEED_133MHz_PCIX_266;
- } else if (status & 0x0002) {
- if (((status >> 12) & 0x3) == 2) {
+ } else if (status & PCI_X_SSTATUS_133MHZ) {
+ if ((status & PCI_X_SSTATUS_VERS) == PCI_X_SSTATUS_V2) {
max = PCI_SPEED_133MHz_PCIX_ECC;
} else {
max = PCI_SPEED_133MHz_PCIX;
@@ -596,7 +598,8 @@ static void pci_set_bus_speed(struct pci_bus *bus)
}
bus->max_bus_speed = max;
- bus->cur_bus_speed = pcix_bus_speed[(status >> 6) & 0xf];
+ bus->cur_bus_speed = pcix_bus_speed[
+ (status & PCI_X_SSTATUS_FREQ) >> 6];
return;
}
@@ -607,7 +610,7 @@ static void pci_set_bus_speed(struct pci_bus *bus)
u16 linksta;
pcie_capability_read_dword(bridge, PCI_EXP_LNKCAP, &linkcap);
- bus->max_bus_speed = pcie_link_speed[linkcap & 0xf];
+ bus->max_bus_speed = pcie_link_speed[linkcap & PCI_EXP_LNKCAP_SLS];
pcie_capability_read_word(bridge, PCI_EXP_LNKSTA, &linksta);
pcie_update_link_speed(bus, linksta);
@@ -705,7 +708,7 @@ static void pci_fixup_parent_subordinate_busnr(struct pci_bus *child, int max)
* them, we proceed to assigning numbers to the remaining buses in
* order to avoid overlaps between old and new bus numbers.
*/
-int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass)
+int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass)
{
struct pci_bus *child;
int is_cardbus = (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS);
@@ -975,6 +978,7 @@ int pci_setup_device(struct pci_dev *dev)
dev->sysdata = dev->bus->sysdata;
dev->dev.parent = dev->bus->bridge;
dev->dev.bus = &pci_bus_type;
+ dev->dev.type = &pci_dev_type;
dev->hdr_type = hdr_type & 0x7f;
dev->multifunction = !!(hdr_type & 0x80);
dev->error_state = pci_channel_io_normal;
@@ -1586,7 +1590,7 @@ void pcie_bus_configure_settings(struct pci_bus *bus, u8 mpss)
}
EXPORT_SYMBOL_GPL(pcie_bus_configure_settings);
-unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus)
+unsigned int pci_scan_child_bus(struct pci_bus *bus)
{
unsigned int devfn, pass, max = bus->busn_res.start;
struct pci_dev *dev;
@@ -1790,7 +1794,7 @@ void pci_bus_release_busn_res(struct pci_bus *b)
res, ret ? "can not be" : "is");
}
-struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus,
+struct pci_bus *pci_scan_root_bus(struct device *parent, int bus,
struct pci_ops *ops, void *sysdata, struct list_head *resources)
{
struct pci_host_bridge_window *window;
@@ -1826,7 +1830,7 @@ struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus,
EXPORT_SYMBOL(pci_scan_root_bus);
/* Deprecated; use pci_scan_root_bus() instead */
-struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent,
+struct pci_bus *pci_scan_bus_parented(struct device *parent,
int bus, struct pci_ops *ops, void *sysdata)
{
LIST_HEAD(resources);
@@ -1844,7 +1848,7 @@ struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent,
}
EXPORT_SYMBOL(pci_scan_bus_parented);
-struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops,
+struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops,
void *sysdata)
{
LIST_HEAD(resources);
@@ -1864,7 +1868,6 @@ struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops,
}
EXPORT_SYMBOL(pci_scan_bus);
-#ifdef CONFIG_HOTPLUG
/**
* pci_rescan_bus_bridge_resize - scan a PCI bus for devices.
* @bridge: PCI bridge for the bus to scan
@@ -1890,11 +1893,32 @@ unsigned int __ref pci_rescan_bus_bridge_resize(struct pci_dev *bridge)
return max;
}
+/**
+ * pci_rescan_bus - scan a PCI bus for devices.
+ * @bus: PCI bus to scan
+ *
+ * Scan a PCI bus and child buses for new devices, adds them,
+ * and enables them.
+ *
+ * Returns the max number of subordinate bus discovered.
+ */
+unsigned int __ref pci_rescan_bus(struct pci_bus *bus)
+{
+ unsigned int max;
+
+ max = pci_scan_child_bus(bus);
+ pci_assign_unassigned_bus_resources(bus);
+ pci_enable_bridges(bus);
+ pci_bus_add_devices(bus);
+
+ return max;
+}
+EXPORT_SYMBOL_GPL(pci_rescan_bus);
+
EXPORT_SYMBOL(pci_add_new_bus);
EXPORT_SYMBOL(pci_scan_slot);
EXPORT_SYMBOL(pci_scan_bridge);
EXPORT_SYMBOL_GPL(pci_scan_child_bus);
-#endif
static int __init pci_sort_bf_cmp(const struct device *d_a, const struct device *d_b)
{
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index eb907a8f..9b8505c 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -76,6 +76,8 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp
if (!access_ok(VERIFY_WRITE, buf, cnt))
return -EINVAL;
+ pci_config_pm_runtime_get(dev);
+
if ((pos & 1) && cnt) {
unsigned char val;
pci_user_read_config_byte(dev, pos, &val);
@@ -121,6 +123,8 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp
cnt--;
}
+ pci_config_pm_runtime_put(dev);
+
*ppos = pos;
return nbytes;
}
@@ -146,6 +150,8 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof
if (!access_ok(VERIFY_READ, buf, cnt))
return -EINVAL;
+ pci_config_pm_runtime_get(dev);
+
if ((pos & 1) && cnt) {
unsigned char val;
__get_user(val, buf);
@@ -191,6 +197,8 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof
cnt--;
}
+ pci_config_pm_runtime_put(dev);
+
*ppos = pos;
i_size_write(ino, dp->size);
return nbytes;
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 7a451ff..0369fb6 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -37,7 +37,7 @@
* key system devices. For devices that need to have mmio decoding always-on,
* we need to set the dev->mmio_always_on bit.
*/
-static void __devinit quirk_mmio_always_on(struct pci_dev *dev)
+static void quirk_mmio_always_on(struct pci_dev *dev)
{
dev->mmio_always_on = 1;
}
@@ -48,7 +48,7 @@ DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID,
* Mark this device with a broken_parity_status, to allow
* PCI scanning code to "skip" this now blacklisted device.
*/
-static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
+static void quirk_mellanox_tavor(struct pci_dev *dev)
{
dev->broken_parity_status = 1; /* This device gives false positives */
}
@@ -83,7 +83,7 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_p
This appears to be BIOS not version dependent. So presumably there is a
chipset level fix */
-static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
+static void quirk_isa_dma_hangs(struct pci_dev *dev)
{
if (!isa_dma_bridge_buggy) {
isa_dma_bridge_buggy=1;
@@ -106,7 +106,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_d
* Intel NM10 "TigerPoint" LPC PM1a_STS.BM_STS must be clear
* for some HT machines to use C4 w/o hanging.
*/
-static void __devinit quirk_tigerpoint_bm_sts(struct pci_dev *dev)
+static void quirk_tigerpoint_bm_sts(struct pci_dev *dev)
{
u32 pmbase;
u16 pm1a;
@@ -125,7 +125,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGP_LPC, quirk
/*
* Chipsets where PCI->PCI transfers vanish or hang
*/
-static void __devinit quirk_nopcipci(struct pci_dev *dev)
+static void quirk_nopcipci(struct pci_dev *dev)
{
if ((pci_pci_problems & PCIPCI_FAIL)==0) {
dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n");
@@ -135,7 +135,7 @@ static void __devinit quirk_nopcipci(struct pci_dev *dev)
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
-static void __devinit quirk_nopciamd(struct pci_dev *dev)
+static void quirk_nopciamd(struct pci_dev *dev)
{
u8 rev;
pci_read_config_byte(dev, 0x08, &rev);
@@ -150,7 +150,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopci
/*
* Triton requires workarounds to be used by the drivers
*/
-static void __devinit quirk_triton(struct pci_dev *dev)
+static void quirk_triton(struct pci_dev *dev)
{
if ((pci_pci_problems&PCIPCI_TRITON)==0) {
dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
@@ -229,7 +229,7 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_viala
/*
* VIA Apollo VP3 needs ETBF on BT848/878
*/
-static void __devinit quirk_viaetbf(struct pci_dev *dev)
+static void quirk_viaetbf(struct pci_dev *dev)
{
if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
@@ -238,7 +238,7 @@ static void __devinit quirk_viaetbf(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
-static void __devinit quirk_vsfx(struct pci_dev *dev)
+static void quirk_vsfx(struct pci_dev *dev)
{
if ((pci_pci_problems&PCIPCI_VSFX)==0) {
dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
@@ -253,7 +253,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx)
* workaround applied too
* [Info kindly provided by ALi]
*/
-static void __devinit quirk_alimagik(struct pci_dev *dev)
+static void quirk_alimagik(struct pci_dev *dev)
{
if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
@@ -267,7 +267,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimag
* Natoma has some interesting boundary conditions with Zoran stuff
* at least
*/
-static void __devinit quirk_natoma(struct pci_dev *dev)
+static void quirk_natoma(struct pci_dev *dev)
{
if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
@@ -285,7 +285,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, qu
* This chip can cause PCI parity errors if config register 0xA0 is read
* while DMAs are occurring.
*/
-static void __devinit quirk_citrine(struct pci_dev *dev)
+static void quirk_citrine(struct pci_dev *dev)
{
dev->cfg_size = 0xA0;
}
@@ -295,7 +295,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_cit
* S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
* If it's needed, re-allocate the region.
*/
-static void __devinit quirk_s3_64M(struct pci_dev *dev)
+static void quirk_s3_64M(struct pci_dev *dev)
{
struct resource *r = &dev->resource[0];
@@ -313,7 +313,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M);
* BAR0 should be 8 bytes; instead, it may be set to something like 8k
* (which conflicts w/ BAR1's memory range).
*/
-static void __devinit quirk_cs5536_vsa(struct pci_dev *dev)
+static void quirk_cs5536_vsa(struct pci_dev *dev)
{
if (pci_resource_len(dev, 0) != 8) {
struct resource *res = &dev->resource[0];
@@ -324,7 +324,7 @@ static void __devinit quirk_cs5536_vsa(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_cs5536_vsa);
-static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
+static void quirk_io_region(struct pci_dev *dev, unsigned region,
unsigned size, int nr, const char *name)
{
region &= ~(size-1);
@@ -352,7 +352,7 @@ static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
* ATI Northbridge setups MCE the processor if you even
* read somewhere between 0x3b0->0x3bb or read 0x3d3
*/
-static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
+static void quirk_ati_exploding_mce(struct pci_dev *dev)
{
dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
/* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
@@ -372,7 +372,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_
* 0xE0 (64 bytes of ACPI registers)
* 0xE2 (32 bytes of SMB registers)
*/
-static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
+static void quirk_ali7101_acpi(struct pci_dev *dev)
{
u16 region;
@@ -440,7 +440,7 @@ static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int
* 0x90 (16 bytes of SMB registers)
* and a few strange programmable PIIX4 device resources.
*/
-static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
+static void quirk_piix4_acpi(struct pci_dev *dev)
{
u32 region, res_a;
@@ -489,7 +489,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, qui
* 0x40 (128 bytes of ACPI, GPIO & TCO registers)
* 0x58 (64 bytes of GPIO I/O space)
*/
-static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
+static void quirk_ich4_lpc_acpi(struct pci_dev *dev)
{
u32 region;
u8 enable;
@@ -531,7 +531,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12,
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
-static void __devinit ich6_lpc_acpi_gpio(struct pci_dev *dev)
+static void ich6_lpc_acpi_gpio(struct pci_dev *dev)
{
u32 region;
u8 enable;
@@ -555,7 +555,7 @@ static void __devinit ich6_lpc_acpi_gpio(struct pci_dev *dev)
}
}
-static void __devinit ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
+static void ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
{
u32 val;
u32 size, base;
@@ -583,7 +583,7 @@ static void __devinit ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg,
dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base+size-1);
}
-static void __devinit quirk_ich6_lpc(struct pci_dev *dev)
+static void quirk_ich6_lpc(struct pci_dev *dev)
{
/* Shared ACPI/GPIO decode with all ICH6+ */
ich6_lpc_acpi_gpio(dev);
@@ -595,7 +595,7 @@ static void __devinit quirk_ich6_lpc(struct pci_dev *dev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc);
-static void __devinit ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name)
+static void ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name)
{
u32 val;
u32 mask, base;
@@ -619,7 +619,7 @@ static void __devinit ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg,
}
/* ICH7-10 has the same common LPC generic IO decode registers */
-static void __devinit quirk_ich7_lpc(struct pci_dev *dev)
+static void quirk_ich7_lpc(struct pci_dev *dev)
{
/* We share the common ACPI/GPIO decode with ICH6 */
ich6_lpc_acpi_gpio(dev);
@@ -648,7 +648,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, qui
* VIA ACPI: One IO region pointed to by longword at
* 0x48 or 0x20 (256 bytes of ACPI registers)
*/
-static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
+static void quirk_vt82c586_acpi(struct pci_dev *dev)
{
u32 region;
@@ -666,7 +666,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt
* 0x70 (128 bytes of hardware monitoring register)
* 0x90 (16 bytes of SMB registers)
*/
-static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
+static void quirk_vt82c686_acpi(struct pci_dev *dev)
{
u16 hm;
u32 smb;
@@ -688,7 +688,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt
* 0x88 (128 bytes of power management registers)
* 0xd0 (16 bytes of SMB registers)
*/
-static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
+static void quirk_vt8235_acpi(struct pci_dev *dev)
{
u16 pm, smb;
@@ -706,7 +706,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235
* TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back:
* Disable fast back-to-back on the secondary bus segment
*/
-static void __devinit quirk_xio2000a(struct pci_dev *dev)
+static void quirk_xio2000a(struct pci_dev *dev)
{
struct pci_dev *pdev;
u16 command;
@@ -780,7 +780,7 @@ DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk
* noapic specified. For the moment we assume it's the erratum. We may be wrong
* of course. However the advice is demonstrably good even if so..
*/
-static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
+static void quirk_amd_ioapic(struct pci_dev *dev)
{
if (dev->revision >= 0x02) {
dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
@@ -789,7 +789,7 @@ static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
-static void __devinit quirk_ioapic_rmw(struct pci_dev *dev)
+static void quirk_ioapic_rmw(struct pci_dev *dev)
{
if (dev->devfn == 0 && dev->bus->number == 0)
sis_apic_bug = 1;
@@ -801,7 +801,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw);
* Some settings of MMRBC can lead to data corruption so block changes.
* See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
*/
-static void __devinit quirk_amd_8131_mmrbc(struct pci_dev *dev)
+static void quirk_amd_8131_mmrbc(struct pci_dev *dev)
{
if (dev->subordinate && dev->revision <= 0x12) {
dev_info(&dev->dev, "AMD8131 rev %x detected; "
@@ -819,7 +819,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_
* value of the ACPI SCI interrupt is only done for convenience.
* -jgarzik
*/
-static void __devinit quirk_via_acpi(struct pci_dev *d)
+static void quirk_via_acpi(struct pci_dev *d)
{
/*
* VIA ACPI device: SCI IRQ line in PCI config byte 0x42
@@ -926,7 +926,7 @@ DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
* We need to switch it off to be able to recognize the real
* type of the chip.
*/
-static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
+static void quirk_vt82c598_id(struct pci_dev *dev)
{
pci_write_config_byte(dev, 0xfc, 0);
pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
@@ -978,7 +978,7 @@ DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C
* assigned to it. We force a larger allocation to ensure that
* nothing gets put too close to it.
*/
-static void __devinit quirk_dunord ( struct pci_dev * dev )
+static void quirk_dunord(struct pci_dev *dev)
{
struct resource *r = &dev->resource [1];
r->start = 0;
@@ -992,7 +992,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk
* in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
* instead of 0x01.
*/
-static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
+static void quirk_transparent_bridge(struct pci_dev *dev)
{
dev->transparent = 1;
}
@@ -1066,7 +1066,7 @@ DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA
/*
* Serverworks CSB5 IDE does not fully support native mode
*/
-static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
+static void quirk_svwks_csb5ide(struct pci_dev *pdev)
{
u8 prog;
pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
@@ -1082,7 +1082,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB
/*
* Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
*/
-static void __devinit quirk_ide_samemode(struct pci_dev *pdev)
+static void quirk_ide_samemode(struct pci_dev *pdev)
{
u8 prog;
@@ -1101,7 +1101,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, qui
* Some ATA devices break if put into D3
*/
-static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
+static void quirk_no_ata_d3(struct pci_dev *pdev)
{
pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
}
@@ -1121,7 +1121,7 @@ DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID,
/* This was originally an Alpha specific thing, but it really fits here.
* The i82375 PCI/EISA bridge appears as non-classified. Fix that.
*/
-static void __devinit quirk_eisa_bridge(struct pci_dev *dev)
+static void quirk_eisa_bridge(struct pci_dev *dev)
{
dev->class = PCI_CLASS_BRIDGE_EISA << 8;
}
@@ -1155,7 +1155,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_e
*/
static int asus_hides_smbus;
-static void __devinit asus_hides_smbus_hostbridge(struct pci_dev *dev)
+static void asus_hides_smbus_hostbridge(struct pci_dev *dev)
{
if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
@@ -1538,7 +1538,7 @@ DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB3
#endif
#ifdef CONFIG_X86_IO_APIC
-static void __devinit quirk_alder_ioapic(struct pci_dev *pdev)
+static void quirk_alder_ioapic(struct pci_dev *pdev)
{
int i;
@@ -1561,7 +1561,7 @@ static void __devinit quirk_alder_ioapic(struct pci_dev *pdev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
#endif
-static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
+static void quirk_pcie_mch(struct pci_dev *pdev)
{
pci_msi_off(pdev);
pdev->no_msi = 1;
@@ -1575,7 +1575,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quir
* It's possible for the MSI to get corrupted if shpc and acpi
* are used together on certain PXH-based systems.
*/
-static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
+static void quirk_pcie_pxh(struct pci_dev *dev)
{
pci_msi_off(dev);
dev->no_msi = 1;
@@ -1777,7 +1777,7 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, qui
* but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
* Re-allocate the region if needed...
*/
-static void __devinit quirk_tc86c001_ide(struct pci_dev *dev)
+static void quirk_tc86c001_ide(struct pci_dev *dev)
{
struct resource *r = &dev->resource[0];
@@ -1790,7 +1790,46 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
quirk_tc86c001_ide);
-static void __devinit quirk_netmos(struct pci_dev *dev)
+/*
+ * PLX PCI 9050 PCI Target bridge controller has an errata that prevents the
+ * local configuration registers accessible via BAR0 (memory) or BAR1 (i/o)
+ * being read correctly if bit 7 of the base address is set.
+ * The BAR0 or BAR1 region may be disabled (size 0) or enabled (size 128).
+ * Re-allocate the regions to a 256-byte boundary if necessary.
+ */
+static void quirk_plx_pci9050(struct pci_dev *dev)
+{
+ unsigned int bar;
+
+ /* Fixed in revision 2 (PCI 9052). */
+ if (dev->revision >= 2)
+ return;
+ for (bar = 0; bar <= 1; bar++)
+ if (pci_resource_len(dev, bar) == 0x80 &&
+ (pci_resource_start(dev, bar) & 0x80)) {
+ struct resource *r = &dev->resource[bar];
+ dev_info(&dev->dev,
+ "Re-allocating PLX PCI 9050 BAR %u to length 256 to avoid bit 7 bug\n",
+ bar);
+ r->start = 0;
+ r->end = 0xff;
+ }
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+ quirk_plx_pci9050);
+/*
+ * The following Meilhaus (vendor ID 0x1402) device IDs (amongst others)
+ * may be using the PLX PCI 9050: 0x0630, 0x0940, 0x0950, 0x0960, 0x100b,
+ * 0x1400, 0x140a, 0x140b, 0x14e0, 0x14ea, 0x14eb, 0x1604, 0x1608, 0x160c,
+ * 0x168f, 0x2000, 0x2600, 0x3000, 0x810a, 0x810b.
+ *
+ * Currently, device IDs 0x2000 and 0x2600 are used by the Comedi "me_daq"
+ * driver.
+ */
+DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2000, quirk_plx_pci9050);
+DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2600, quirk_plx_pci9050);
+
+static void quirk_netmos(struct pci_dev *dev)
{
unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
unsigned int num_serial = dev->subsystem_device & 0xf;
@@ -1828,7 +1867,7 @@ static void __devinit quirk_netmos(struct pci_dev *dev)
DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID,
PCI_CLASS_COMMUNICATION_SERIAL, 8, quirk_netmos);
-static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
+static void quirk_e100_interrupt(struct pci_dev *dev)
{
u16 command, pmcsr;
u8 __iomem *csr;
@@ -1901,7 +1940,7 @@ DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
* The 82575 and 82598 may experience data corruption issues when transitioning
* out of L0S. To prevent this we need to disable L0S on the pci-e link
*/
-static void __devinit quirk_disable_aspm_l0s(struct pci_dev *dev)
+static void quirk_disable_aspm_l0s(struct pci_dev *dev)
{
dev_info(&dev->dev, "Disabling L0s\n");
pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
@@ -1921,7 +1960,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
-static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
+static void fixup_rev1_53c810(struct pci_dev *dev)
{
/* rev 1 ncr53c810 chips don't set the class at all which means
* they don't get their resources remapped. Fix that here.
@@ -1935,7 +1974,7 @@ static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
/* Enable 1k I/O space granularity on the Intel P64H2 */
-static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
+static void quirk_p64h2_1k_io(struct pci_dev *dev)
{
u16 en1k;
@@ -1968,7 +2007,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
quirk_nvidia_ck804_pcie_aer_ext_cap);
-static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
+static void quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
{
/*
* Disable PCI Bus Parking and PCI Master read caching on CX700
@@ -2031,7 +2070,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_c
* We believe that it is legal to read beyond the end tag and
* therefore the solution is to limit the read/write length.
*/
-static void __devinit quirk_brcm_570x_limit_vpd(struct pci_dev *dev)
+static void quirk_brcm_570x_limit_vpd(struct pci_dev *dev)
{
/*
* Only disable the VPD capability for 5706, 5706S, 5708,
@@ -2091,7 +2130,7 @@ DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM,
* the DRBs - this is where we expose device 6.
* http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm
*/
-static void __devinit quirk_unhide_mch_dev6(struct pci_dev *dev)
+static void quirk_unhide_mch_dev6(struct pci_dev *dev)
{
u8 reg;
@@ -2115,7 +2154,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB,
* supports link speed auto negotiation, but falsely sets
* the link speed to 5GT/s.
*/
-static void __devinit quirk_tile_plx_gen1(struct pci_dev *dev)
+static void quirk_tile_plx_gen1(struct pci_dev *dev)
{
if (tile_plx_gen1) {
pci_write_config_dword(dev, 0x98, 0x1);
@@ -2132,7 +2171,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1);
* aware of it. Instead of setting the flag on all busses in the
* machine, simply disable MSI globally.
*/
-static void __devinit quirk_disable_all_msi(struct pci_dev *dev)
+static void quirk_disable_all_msi(struct pci_dev *dev)
{
pci_no_msi();
dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
@@ -2146,7 +2185,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disab
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi);
/* Disable MSI on chipsets that are known to not support it */
-static void __devinit quirk_disable_msi(struct pci_dev *dev)
+static void quirk_disable_msi(struct pci_dev *dev)
{
if (dev->subordinate) {
dev_warn(&dev->dev, "MSI quirk detected; "
@@ -2164,7 +2203,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x5a3f, quirk_disable_msi);
* we use the possible vendor/device IDs of the host bridge for the
* declared quirk, and search for the APC bridge by slot number.
*/
-static void __devinit quirk_amd_780_apc_msi(struct pci_dev *host_bridge)
+static void quirk_amd_780_apc_msi(struct pci_dev *host_bridge)
{
struct pci_dev *apc_bridge;
@@ -2272,7 +2311,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
* for the MCP55 NIC. It is not yet determined whether the msi problem
* also affects other devices. As for now, turn off msi for this device.
*/
-static void __devinit nvenet_msi_disable(struct pci_dev *dev)
+static void nvenet_msi_disable(struct pci_dev *dev)
{
const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
@@ -2298,7 +2337,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
* we have it set correctly.
* Note this is an undocumented register.
*/
-static void __devinit nvbridge_check_legacy_irq_routing(struct pci_dev *dev)
+static void nvbridge_check_legacy_irq_routing(struct pci_dev *dev)
{
u32 cfg;
@@ -2534,11 +2573,11 @@ DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_q
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
-static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
+static void quirk_msi_intx_disable_bug(struct pci_dev *dev)
{
dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
}
-static void __devinit quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
+static void quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
{
struct pci_dev *p;
@@ -2612,7 +2651,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1083,
* kernel fails to allocate resources when hotplug device is
* inserted and PCI bus is rescanned.
*/
-static void __devinit quirk_hotplug_bridge(struct pci_dev *dev)
+static void quirk_hotplug_bridge(struct pci_dev *dev)
{
dev->is_hotplug_bridge = 1;
}
@@ -2686,7 +2725,7 @@ static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
if (PCI_FUNC(dev->devfn))
return;
/*
- * RICOH 0xe823 SD/MMC card reader fails to recognize
+ * RICOH 0xe822 and 0xe823 SD/MMC card readers fail to recognize
* certain types of SD/MMC cards. Lowering the SD base
* clock frequency from 200Mhz to 50Mhz fixes this issue.
*
@@ -2697,7 +2736,8 @@ static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
* 0xf9 - Key register for 0x150
* 0xfc - key register for 0xe1
*/
- if (dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
+ if (dev->device == PCI_DEVICE_ID_RICOH_R5CE822 ||
+ dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
pci_write_config_byte(dev, 0xf9, 0xfc);
pci_write_config_byte(dev, 0x150, 0x10);
pci_write_config_byte(dev, 0xf9, 0x00);
@@ -2724,6 +2764,8 @@ static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
+DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
#endif /*CONFIG_MMC_RICOH_MMC*/
@@ -2752,7 +2794,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors);
#endif
-static void __devinit fixup_ti816x_class(struct pci_dev* dev)
+static void fixup_ti816x_class(struct pci_dev *dev)
{
/* TI 816x devices do not have class code set when in PCIe boot mode */
dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n");
@@ -2764,7 +2806,7 @@ DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_TI, 0xb800,
/* Some PCIe devices do not work reliably with the claimed maximum
* payload size supported.
*/
-static void __devinit fixup_mpss_256(struct pci_dev *dev)
+static void fixup_mpss_256(struct pci_dev *dev)
{
dev->pcie_mpss = 1; /* 256 bytes */
}
@@ -2782,7 +2824,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
* coalescing must be disabled. Unfortunately, it cannot be re-enabled because
* it is possible to hotplug a device with MPS of 256B.
*/
-static void __devinit quirk_intel_mc_errata(struct pci_dev *dev)
+static void quirk_intel_mc_errata(struct pci_dev *dev)
{
int err;
u16 rcc;
@@ -2888,7 +2930,7 @@ static void fixup_debug_report(struct pci_dev *dev, ktime_t calltime,
* This resolves crashes often seen on monitor unplug.
*/
#define I915_DEIER_REG 0x4400c
-static void __devinit disable_igfx_irq(struct pci_dev *dev)
+static void disable_igfx_irq(struct pci_dev *dev)
{
void __iomem *regs = pci_iomap(dev, 0, 0);
if (regs == NULL) {
@@ -2914,7 +2956,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
* PCI_COMMAND_INTX_DISABLE works though they actually do not properly
* support this feature.
*/
-static void __devinit quirk_broken_intx_masking(struct pci_dev *dev)
+static void quirk_broken_intx_masking(struct pci_dev *dev)
{
dev->broken_intx_masking = 1;
}
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index 513972f..7c0fd92 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -111,3 +111,39 @@ void pci_stop_and_remove_bus_device(struct pci_dev *dev)
pci_remove_bus_device(dev);
}
EXPORT_SYMBOL(pci_stop_and_remove_bus_device);
+
+void pci_stop_root_bus(struct pci_bus *bus)
+{
+ struct pci_dev *child, *tmp;
+ struct pci_host_bridge *host_bridge;
+
+ if (!pci_is_root_bus(bus))
+ return;
+
+ host_bridge = to_pci_host_bridge(bus->bridge);
+ list_for_each_entry_safe_reverse(child, tmp,
+ &bus->devices, bus_list)
+ pci_stop_bus_device(child);
+
+ /* stop the host bridge */
+ device_del(&host_bridge->dev);
+}
+
+void pci_remove_root_bus(struct pci_bus *bus)
+{
+ struct pci_dev *child, *tmp;
+ struct pci_host_bridge *host_bridge;
+
+ if (!pci_is_root_bus(bus))
+ return;
+
+ host_bridge = to_pci_host_bridge(bus->bridge);
+ list_for_each_entry_safe(child, tmp,
+ &bus->devices, bus_list)
+ pci_remove_bus_device(child);
+ pci_remove_bus(bus);
+ host_bridge->bus = NULL;
+
+ /* remove the host bridge */
+ put_device(&host_bridge->dev);
+}
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c
index 0b3037a..ab886b7 100644
--- a/drivers/pci/rom.c
+++ b/drivers/pci/rom.c
@@ -118,11 +118,17 @@ void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size)
void __iomem *rom;
/*
+ * Some devices may provide ROMs via a source other than the BAR
+ */
+ if (pdev->rom && pdev->romlen) {
+ *size = pdev->romlen;
+ return phys_to_virt(pdev->rom);
+ /*
* IORESOURCE_ROM_SHADOW set on x86, x86_64 and IA64 supports legacy
* memory map if the VGA enable bit of the Bridge Control register is
* set for embedded VGA.
*/
- if (res->flags & IORESOURCE_ROM_SHADOW) {
+ } else if (res->flags & IORESOURCE_ROM_SHADOW) {
/* primary video rom always starts here */
start = (loff_t)0xC0000;
*size = 0x20000; /* cover C000:0 through E000:0 */
@@ -181,7 +187,8 @@ void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom)
if (res->flags & (IORESOURCE_ROM_COPY | IORESOURCE_ROM_BIOS_COPY))
return;
- iounmap(rom);
+ if (!pdev->rom || !pdev->romlen)
+ iounmap(rom);
/* Disable again before continuing, leave enabled if pci=rom */
if (!(res->flags & (IORESOURCE_ROM_ENABLE | IORESOURCE_ROM_SHADOW)))
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 1e808ca..6d3591d 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -1550,25 +1550,12 @@ enable_all:
}
EXPORT_SYMBOL_GPL(pci_assign_unassigned_bridge_resources);
-#ifdef CONFIG_HOTPLUG
-/**
- * pci_rescan_bus - scan a PCI bus for devices.
- * @bus: PCI bus to scan
- *
- * Scan a PCI bus and child buses for new devices, adds them,
- * and enables them.
- *
- * Returns the max number of subordinate bus discovered.
- */
-unsigned int __ref pci_rescan_bus(struct pci_bus *bus)
+void pci_assign_unassigned_bus_resources(struct pci_bus *bus)
{
- unsigned int max;
struct pci_dev *dev;
LIST_HEAD(add_list); /* list of resources that
want additional resources */
- max = pci_scan_child_bus(bus);
-
down_read(&pci_bus_sem);
list_for_each_entry(dev, &bus->devices, bus_list)
if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
@@ -1579,11 +1566,4 @@ unsigned int __ref pci_rescan_bus(struct pci_bus *bus)
up_read(&pci_bus_sem);
__pci_bus_assign_resources(bus, &add_list, NULL);
BUG_ON(!list_empty(&add_list));
-
- pci_enable_bridges(bus);
- pci_bus_add_devices(bus);
-
- return max;
}
-EXPORT_SYMBOL_GPL(pci_rescan_bus);
-#endif
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index 0aab85a..966abc6 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -412,7 +412,7 @@ static int pcifront_claim_resource(struct pci_dev *dev, void *data)
return 0;
}
-static int __devinit pcifront_scan_bus(struct pcifront_device *pdev,
+static int pcifront_scan_bus(struct pcifront_device *pdev,
unsigned int domain, unsigned int bus,
struct pci_bus *b)
{
@@ -441,7 +441,7 @@ static int __devinit pcifront_scan_bus(struct pcifront_device *pdev,
return 0;
}
-static int __devinit pcifront_scan_root(struct pcifront_device *pdev,
+static int pcifront_scan_root(struct pcifront_device *pdev,
unsigned int domain, unsigned int bus)
{
struct pci_bus *b;
@@ -503,7 +503,7 @@ err_out:
return err;
}
-static int __devinit pcifront_rescan_root(struct pcifront_device *pdev,
+static int pcifront_rescan_root(struct pcifront_device *pdev,
unsigned int domain, unsigned int bus)
{
int err;
@@ -834,7 +834,7 @@ out:
return err;
}
-static int __devinit pcifront_try_connect(struct pcifront_device *pdev)
+static int pcifront_try_connect(struct pcifront_device *pdev)
{
int err = -EFAULT;
int i, num_roots, len;
@@ -924,7 +924,7 @@ out:
return err;
}
-static int __devinit pcifront_attach_devices(struct pcifront_device *pdev)
+static int pcifront_attach_devices(struct pcifront_device *pdev)
{
int err = -EFAULT;
int i, num_roots, len;
@@ -1068,13 +1068,16 @@ static void __init_refok pcifront_backend_changed(struct xenbus_device *xdev,
case XenbusStateInitialising:
case XenbusStateInitWait:
case XenbusStateInitialised:
- case XenbusStateClosed:
break;
case XenbusStateConnected:
pcifront_try_connect(pdev);
break;
+ case XenbusStateClosed:
+ if (xdev->state == XenbusStateClosed)
+ break;
+ /* Missed the backend's CLOSING state -- fallthrough */
case XenbusStateClosing:
dev_warn(&xdev->dev, "backend going away!\n");
pcifront_try_disconnect(pdev);