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authorBjorn Helgaas <bhelgaas@google.com>2014-02-18 17:02:04 -0700
committerBjorn Helgaas <bhelgaas@google.com>2014-02-18 17:02:04 -0700
commit94a5f850aead02f02f350d401a43c4bf9a9fbf3a (patch)
tree14796e071834fc90e45000de3937c7ea96b054bd /arch/x86/pci
parentec5130ba7907a2ad30a595c7d64fd629c69d3a66 (diff)
parent1e2571a78138361f74afeb4c5df859b9536b2d8e (diff)
downloadop-kernel-dev-94a5f850aead02f02f350d401a43c4bf9a9fbf3a.zip
op-kernel-dev-94a5f850aead02f02f350d401a43c4bf9a9fbf3a.tar.gz
Merge branch 'pci/misc' into next
* pci/misc: PCI: Enable INTx if BIOS left them disabled ia64/PCI: Set IORESOURCE_ROM_SHADOW only for the default VGA device x86/PCI: Set IORESOURCE_ROM_SHADOW only for the default VGA device PCI: Update outdated comment for pcibios_bus_report_status() PCI: Cleanup per-arch list of object files PCI: cpqphp: Fix hex vs decimal typo in cpqhpc_probe() x86/PCI: Fix function definition whitespace x86/PCI: Reword comments x86/PCI: Remove unnecessary local variable initialization PCI: Remove unnecessary list_empty(&pci_pme_list) check
Diffstat (limited to 'arch/x86/pci')
-rw-r--r--arch/x86/pci/acpi.c30
-rw-r--r--arch/x86/pci/fixup.c18
2 files changed, 22 insertions, 26 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index f44a64c..01edac6 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -218,9 +218,8 @@ static void teardown_mcfg_map(struct pci_root_info *info)
}
#endif
-static acpi_status
-resource_to_addr(struct acpi_resource *resource,
- struct acpi_resource_address64 *addr)
+static acpi_status resource_to_addr(struct acpi_resource *resource,
+ struct acpi_resource_address64 *addr)
{
acpi_status status;
struct acpi_resource_memory24 *memory24;
@@ -265,8 +264,7 @@ resource_to_addr(struct acpi_resource *resource,
return AE_ERROR;
}
-static acpi_status
-count_resource(struct acpi_resource *acpi_res, void *data)
+static acpi_status count_resource(struct acpi_resource *acpi_res, void *data)
{
struct pci_root_info *info = data;
struct acpi_resource_address64 addr;
@@ -278,8 +276,7 @@ count_resource(struct acpi_resource *acpi_res, void *data)
return AE_OK;
}
-static acpi_status
-setup_resource(struct acpi_resource *acpi_res, void *data)
+static acpi_status setup_resource(struct acpi_resource *acpi_res, void *data)
{
struct pci_root_info *info = data;
struct resource *res;
@@ -435,9 +432,9 @@ static void release_pci_root_info(struct pci_host_bridge *bridge)
__release_pci_root_info(info);
}
-static void
-probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device,
- int busnum, int domain)
+static void probe_pci_root_info(struct pci_root_info *info,
+ struct acpi_device *device,
+ int busnum, int domain)
{
size_t size;
@@ -473,11 +470,11 @@ probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device,
struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
{
struct acpi_device *device = root->device;
- struct pci_root_info *info = NULL;
+ struct pci_root_info *info;
int domain = root->segment;
int busnum = root->secondary.start;
LIST_HEAD(resources);
- struct pci_bus *bus = NULL;
+ struct pci_bus *bus;
struct pci_sysdata *sd;
int node;
@@ -509,15 +506,12 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
sd->domain = domain;
sd->node = node;
sd->companion = device;
- /*
- * Maybe the desired pci bus has been already scanned. In such case
- * it is unnecessary to scan the pci bus with the given domain,busnum.
- */
+
bus = pci_find_bus(domain, busnum);
if (bus) {
/*
- * If the desired bus exits, the content of bus->sysdata will
- * be replaced by sd.
+ * If the desired bus has been scanned already, replace
+ * its bus->sysdata.
*/
memcpy(bus->sysdata, sd, sizeof(*sd));
kfree(info);
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index 201833f..94ae9ae 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -313,9 +313,10 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PC1, pcie_r
* IORESOURCE_ROM_SHADOW is used to associate the boot video
* card with this copy. On laptops this copy has to be used since
* the main ROM may be compressed or combined with another image.
- * See pci_map_rom() for use of this flag. IORESOURCE_ROM_SHADOW
- * is marked here since the boot video device will be the only enabled
- * video device at this point.
+ * See pci_map_rom() for use of this flag. Before marking the device
+ * with IORESOURCE_ROM_SHADOW check if a vga_default_device is already set
+ * by either arch cde or vga-arbitration, if so only apply the fixup to this
+ * already determined primary video card.
*/
static void pci_fixup_video(struct pci_dev *pdev)
@@ -346,12 +347,13 @@ static void pci_fixup_video(struct pci_dev *pdev)
}
bus = bus->parent;
}
- pci_read_config_word(pdev, PCI_COMMAND, &config);
- if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) {
- pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW;
- dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n");
- if (!vga_default_device())
+ if (!vga_default_device() || pdev == vga_default_device()) {
+ pci_read_config_word(pdev, PCI_COMMAND, &config);
+ if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) {
+ pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW;
+ dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n");
vga_set_default_device(pdev);
+ }
}
}
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
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