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| 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 | |
| parent | edb1daab8e91338b7e2a6c41faec695891ccda35 (diff) | |
| parent | f9a37be0f02a943d63e3346b19f9c9d8d91826cb (diff) | |
| download | lwn-72e1e868ca8f14ef34c95e0e8b73f64b6acf5934.tar.gz lwn-72e1e868ca8f14ef34c95e0e8b73f64b6acf5934.zip | |
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')
| -rw-r--r-- | drivers/pci/bus.c | 5 | ||||
| -rw-r--r-- | drivers/pci/pci.c | 13 | ||||
| -rw-r--r-- | drivers/pci/rom.c | 11 |
3 files changed, 27 insertions, 2 deletions
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index a543746fb354..ad6a8b635692 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -170,6 +170,11 @@ int pci_bus_add_device(struct pci_dev *dev) int retval; pci_fixup_device(pci_fixup_final, dev); + + retval = pcibios_add_device(dev); + if (retval) + return retval; + retval = device_add(&dev->dev); if (retval) return retval; diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 5b862b1c93c6..7c2e25ee2c5a 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1333,6 +1333,19 @@ void pcim_pin_device(struct pci_dev *pdev) dr->pinned = 1; } +/* + * pcibios_add_device - provide arch specific hooks when adding device dev + * @dev: the PCI device being added + * + * Permits the platform to provide architecture specific functionality when + * devices are added. This is the default implementation. Architecture + * implementations can override this. + */ +int __weak pcibios_add_device (struct pci_dev *dev) +{ + return 0; +} + /** * pcibios_disable_device - disable arch specific PCI resources for device dev * @dev: the PCI device to disable diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c index 0b3037ab8b93..3a3828fbc879 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))) |