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| author | Bruno Prémont <bonbons@linux-vserver.org> | 2014-06-25 02:55:01 +0400 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-07-11 02:48:48 +0400 |
| commit | 20cde694027e7477cc532833e38ab9fcaa83fb64 (patch) | |
| tree | 5f8923f15a5acb1107908a9ea9d0bb5528fe7f70 /arch/x86/include/asm/vga.h | |
| parent | dcfa9be83866e28fcb8b7e22b4eeb4ba63bd3174 (diff) | |
| download | linux-20cde694027e7477cc532833e38ab9fcaa83fb64.tar.xz | |
x86, ia64: Move EFI_FB vga_default_device() initialization to pci_vga_fixup()
Commit b4aa0163056b ("efifb: Implement vga_default_device() (v2)") added
efifb vga_default_device() so EFI systems that do not load shadow VBIOS or
setup VGA get proper value for boot_vga PCI sysfs attribute on the
corresponding PCI device.
Xorg doesn't detect devices when boot_vga=0, e.g., on some EFI systems such
as MacBookAir2,1. Xorg detects the GPU and finds the DRI device but then
bails out with "no devices detected".
Note: When vga_default_device() is set boot_vga PCI sysfs attribute
reflects its state. When unset this attribute is 1 whenever
IORESOURCE_ROM_SHADOW flag is set.
With introduction of sysfb/simplefb/simpledrm efifb is getting obsolete
while having native drivers for the GPU also makes selecting sysfb/efifb
optional.
Remove the efifb implementation of vga_default_device() and initialize
vgaarb's vga_default_device() with the PCI GPU that matches boot
screen_info in pci_fixup_video().
[bhelgaas: remove unused "dev" in efifb_setup()]
Fixes: b4aa0163056b ("efifb: Implement vga_default_device() (v2)")
Tested-by: Anibal Francisco Martinez Cortina <linuxkid.zeuz@gmail.com>
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Matthew Garrett <matthew.garrett@nebula.com>
CC: stable@vger.kernel.org # v3.5+
Diffstat (limited to 'arch/x86/include/asm/vga.h')
| -rw-r--r-- | arch/x86/include/asm/vga.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/x86/include/asm/vga.h b/arch/x86/include/asm/vga.h index 44282fbf7bf9..c4b9dc2f67c5 100644 --- a/arch/x86/include/asm/vga.h +++ b/arch/x86/include/asm/vga.h @@ -17,10 +17,4 @@ #define vga_readb(x) (*(x)) #define vga_writeb(x, y) (*(y) = (x)) -#ifdef CONFIG_FB_EFI -#define __ARCH_HAS_VGA_DEFAULT_DEVICE -extern struct pci_dev *vga_default_device(void); -extern void vga_set_default_device(struct pci_dev *pdev); -#endif - #endif /* _ASM_X86_VGA_H */ |