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authorBjorn Helgaas <bhelgaas@google.com>2012-12-06 14:37:32 -0700
committerBjorn Helgaas <bhelgaas@google.com>2012-12-06 14:37:32 -0700
commit72e1e868ca8f14ef34c95e0e8b73f64b6acf5934 (patch)
treed3bc99f121693ab8f09c03ea555254c9314ff98d /arch/x86/pci/common.c
parentedb1daab8e91338b7e2a6c41faec695891ccda35 (diff)
parentf9a37be0f02a943d63e3346b19f9c9d8d91826cb (diff)
downloadop-kernel-dev-72e1e868ca8f14ef34c95e0e8b73f64b6acf5934.zip
op-kernel-dev-72e1e868ca8f14ef34c95e0e8b73f64b6acf5934.tar.gz
Merge branch 'pci/mjg-pci-roms-from-efi' into next
* pci/mjg-pci-roms-from-efi: x86: Use PCI setup data PCI: Add support for non-BAR ROMs PCI: Add pcibios_add_device EFI: Stash ROMs if they're not in the PCI BAR
Diffstat (limited to 'arch/x86/pci/common.c')
-rw-r--r--arch/x86/pci/common.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 52dbf1a..6a6b017 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -17,6 +17,7 @@
#include <asm/io.h>
#include <asm/smp.h>
#include <asm/pci_x86.h>
+#include <asm/setup.h>
unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
PCI_PROBE_MMCONF;
@@ -608,6 +609,35 @@ unsigned int pcibios_assign_all_busses(void)
return (pci_probe & PCI_ASSIGN_ALL_BUSSES) ? 1 : 0;
}
+int pcibios_add_device(struct pci_dev *dev)
+{
+ struct setup_data *data;
+ struct pci_setup_rom *rom;
+ u64 pa_data;
+
+ pa_data = boot_params.hdr.setup_data;
+ while (pa_data) {
+ data = phys_to_virt(pa_data);
+
+ if (data->type == SETUP_PCI) {
+ rom = (struct pci_setup_rom *)data;
+
+ if ((pci_domain_nr(dev->bus) == rom->segment) &&
+ (dev->bus->number == rom->bus) &&
+ (PCI_SLOT(dev->devfn) == rom->device) &&
+ (PCI_FUNC(dev->devfn) == rom->function) &&
+ (dev->vendor == rom->vendor) &&
+ (dev->device == rom->devid)) {
+ dev->rom = (void *)(unsigned long)(pa_data +
+ offsetof(struct pci_setup_rom, romdata));
+ dev->romlen = rom->pcilen;
+ }
+ }
+ pa_data = data->next;
+ }
+ return 0;
+}
+
int pcibios_enable_device(struct pci_dev *dev, int mask)
{
int err;
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