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drm/radeon/kms: check for valid PCI bios and not OF rom
author
Dave Airlie
<airlied@redhat.com>
Thu, 11 Feb 2010 05:38:23 +0000
(15:38 +1000)
committer
Dave Airlie
<airlied@redhat.com>
Thu, 11 Feb 2010 09:04:07 +0000
(19:04 +1000)
stops us trying to treat a OF rom as a PCI rom.
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/radeon/radeon_bios.c
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diff --git
a/drivers/gpu/drm/radeon/radeon_bios.c
b/drivers/gpu/drm/radeon/radeon_bios.c
index
9069217
..
26856ed
100644
(file)
--- a/
drivers/gpu/drm/radeon/radeon_bios.c
+++ b/
drivers/gpu/drm/radeon/radeon_bios.c
@@
-411,6
+411,12
@@
bool radeon_get_bios(struct radeon_device *rdev)
goto free_bios;
}
+ tmp = RBIOS16(0x18);
+ if (RBIOS8(tmp + 0x14) != 0x0) {
+ DRM_INFO("Not an x86 BIOS ROM, not using.\n");
+ goto free_bios;
+ }
+
rdev->bios_header_start = RBIOS16(0x48);
if (!rdev->bios_header_start) {
goto free_bios;