| Message ID | 1343598582.15288.4.camel@shinybook.infradead.org (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
On Sun, Jul 29, 2012 at 10:49:42PM +0100, David Woodhouse wrote: > + * Some devices may provide ROMs via a source other than the BAR > + */ > + if (pdev->rom && pdev->romlen) { > + *size = pdev->romlen; > + return phys_to_virt(pdev->rom); Needs casting. My mistake.
On Sun, Jul 29, 2012 at 3:53 PM, Matthew Garrett <mjg59@srcf.ucam.org> wrote: > On Sun, Jul 29, 2012 at 10:49:42PM +0100, David Woodhouse wrote: >> + * Some devices may provide ROMs via a source other than the BAR >> + */ >> + if (pdev->rom && pdev->romlen) { >> + *size = pdev->romlen; >> + return phys_to_virt(pdev->rom); > > Needs casting. My mistake. Matthew, are you going to fold this into your patch and repost your series, or is this a logically separate issue? -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Wed, Aug 01, 2012 at 08:20:15AM -0600, Bjorn Helgaas wrote: > On Sun, Jul 29, 2012 at 3:53 PM, Matthew Garrett <mjg59@srcf.ucam.org> wrote: > > On Sun, Jul 29, 2012 at 10:49:42PM +0100, David Woodhouse wrote: > >> + * Some devices may provide ROMs via a source other than the BAR > >> + */ > >> + if (pdev->rom && pdev->romlen) { > >> + *size = pdev->romlen; > >> + return phys_to_virt(pdev->rom); > > > > Needs casting. My mistake. > > Matthew, are you going to fold this into your patch and repost your > series, or is this a logically separate issue? I can fold it in.
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c index 7ebaab6..4d437b5 100644 --- a/drivers/pci/rom.c +++ b/drivers/pci/rom.c @@ -118,6 +118,13 @@ 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(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. @@ -126,12 +133,6 @@ void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size) /* primary video rom always starts here */ start = (loff_t)0xC0000; *size = 0x20000; /* cover C000:0 through E000:0 */ - /* - * Some devices may provide ROMs via a source other than the BAR - */ - } else if (pdev->rom && pdev->romlen) { - *size = pdev->romlen; - return phys_to_virt(pdev->rom); } else { if (res->flags & (IORESOURCE_ROM_COPY | IORESOURCE_ROM_BIOS_COPY)) {
If we've obtained the ROM data through other means (such as from EFI), we don't want to ignore it just because the IORESOURCE_ROM_SHADOW bit has got set. This fixes the Radeon ROM handling on my MacBookPro8,3 when booted via grub1-efi. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- This fixes patch 3/4 'PCI: Add support for non-BAR ROMs' for me. drivers/pci/rom.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-)