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| author | Bjorn Helgaas <bhelgaas@google.com> | 2012-12-07 01:37:32 +0400 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-12-07 01:37:32 +0400 |
| commit | 72e1e868ca8f14ef34c95e0e8b73f64b6acf5934 (patch) | |
| tree | d3bc99f121693ab8f09c03ea555254c9314ff98d /arch/x86/pci/common.c | |
| parent | edb1daab8e91338b7e2a6c41faec695891ccda35 (diff) | |
| parent | f9a37be0f02a943d63e3346b19f9c9d8d91826cb (diff) | |
| download | linux-72e1e868ca8f14ef34c95e0e8b73f64b6acf5934.tar.xz | |
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.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 52dbf1aeeb63..6a6b01778dab 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; |