diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2012-12-06 14:37:32 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-12-06 14:37:32 -0700 |
| commit | 72e1e868ca8f14ef34c95e0e8b73f64b6acf5934 (patch) | |
| tree | d3bc99f121693ab8f09c03ea555254c9314ff98d /drivers/pci/rom.c | |
| parent | edb1daab8e91338b7e2a6c41faec695891ccda35 (diff) | |
| parent | f9a37be0f02a943d63e3346b19f9c9d8d91826cb (diff) | |
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 'drivers/pci/rom.c')
| -rw-r--r-- | drivers/pci/rom.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c index 0b3037ab8b9..3a3828fbc87 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((phys_addr_t)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))) |