Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / drivers / pci / pci.c

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 1228627..9f79dd6 100644 (file)
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -19,6 +19,7 @@
 #include <asm/dma.h>   /* isa_dma_bridge_buggy */
 #include "pci.h"
 
+unsigned int pci_pm_d3_delay = 10;
 
 /**
  * pci_bus_max_busnr - returns maximum PCI bus number of given bus' children
@@ -164,7 +165,6 @@ int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap)
        return __pci_bus_find_cap(bus, devfn, hdr_type & 0x7f, cap);
 }
 
-#if 0
 /**
  * pci_find_ext_capability - Find an extended capability
  * @dev: PCI device to query
@@ -212,7 +212,7 @@ int pci_find_ext_capability(struct pci_dev *dev, int cap)
 
        return 0;
 }
-#endif  /*  0  */
+EXPORT_SYMBOL_GPL(pci_find_ext_capability);
 
 /**
  * pci_find_parent_resource - return resource region of parent bus of given region
@@ -314,6 +314,14 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state)
        } else if (dev->current_state == state)
                return 0;        /* we're already there */
 
+       /*
+        * If the device or the parent bridge can't support PCI PM, ignore
+        * the request if we're doing anything besides putting it into D0
+        * (which would only happen on boot).
+        */
+       if ((state == PCI_D1 || state == PCI_D2) && pci_no_d1d2(dev))
+               return 0;
+
        /* find PCI PM capability in list */
        pm = pci_find_capability(dev, PCI_CAP_ID_PM);
        
@@ -364,13 +372,13 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state)
        /* Mandatory power management transition delays */
        /* see PCI PM 1.1 5.6.1 table 18 */
        if (state == PCI_D3hot || dev->current_state == PCI_D3hot)
-               msleep(10);
+               msleep(pci_pm_d3_delay);
        else if (state == PCI_D2 || dev->current_state == PCI_D2)
                udelay(200);
 
        /*
         * Give firmware a chance to be called, such as ACPI _PRx, _PSx
-        * Firmware method after natice method ?
+        * Firmware method after native method ?
         */
        if (platform_pci_set_power_state)
                platform_pci_set_power_state(dev, state);
@@ -518,7 +526,12 @@ pci_enable_device_bars(struct pci_dev *dev, int bars)
 int
 pci_enable_device(struct pci_dev *dev)
 {
-       int err = pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1);
+       int err;
+
+       if (dev->is_enabled)
+               return 0;
+
+       err = pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1);
        if (err)
                return err;
        pci_fixup_device(pci_fixup_enable, dev);
@@ -547,7 +560,14 @@ void
 pci_disable_device(struct pci_dev *dev)
 {
        u16 pci_command;
-       
+
+       if (dev->msi_enabled)
+               disable_msi_mode(dev, pci_find_capability(dev, PCI_CAP_ID_MSI),
+                       PCI_CAP_ID_MSI);
+       if (dev->msix_enabled)
+               disable_msi_mode(dev, pci_find_capability(dev, PCI_CAP_ID_MSI),
+                       PCI_CAP_ID_MSIX);
+
        pci_read_config_word(dev, PCI_COMMAND, &pci_command);
        if (pci_command & PCI_COMMAND_MASTER) {
                pci_command &= ~PCI_COMMAND_MASTER;
@@ -680,10 +700,12 @@ int pci_request_region(struct pci_dev *pdev, int bar, const char *res_name)
        return 0;
 
 err_out:
-       printk (KERN_WARNING "PCI: Unable to reserve %s region #%d:%lx@%lx for device %s\n",
+       printk (KERN_WARNING "PCI: Unable to reserve %s region #%d:%llx@%llx "
+               "for device %s\n",
                pci_resource_flags(pdev, bar) & IORESOURCE_IO ? "I/O" : "mem",
                bar + 1, /* PCI BAR # */
-               pci_resource_len(pdev, bar), pci_resource_start(pdev, bar),
+               (unsigned long long)pci_resource_len(pdev, bar),
+               (unsigned long long)pci_resource_start(pdev, bar),
                pci_name(pdev));
        return -EBUSY;
 }