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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-14 19:13:28 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-14 19:13:28 -0700
commit11b397e6eb12191300ca19290f29f51f61118953 (patch)
tree6e0f8cb52cbcdb02108755f3d643a025a943bd79 /drivers/gpu/drm/radeon
parente1c969f7814dcd23bbfe8d777544321a492b6fee (diff)
parent41ef2d5678d83af030125550329b6ae8b74618fa (diff)
Merge 3.9-rc7 intp tty-next
We want the fixes here. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/radeon')
-rw-r--r--drivers/gpu/drm/radeon/radeon_bios.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c
index b8015913d38..fa3c56fba29 100644
--- a/drivers/gpu/drm/radeon/radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -99,6 +99,29 @@ static bool radeon_read_bios(struct radeon_device *rdev)
return true;
}
+static bool radeon_read_platform_bios(struct radeon_device *rdev)
+{
+ uint8_t __iomem *bios;
+ size_t size;
+
+ rdev->bios = NULL;
+
+ bios = pci_platform_rom(rdev->pdev, &size);
+ if (!bios) {
+ return false;
+ }
+
+ if (size == 0 || bios[0] != 0x55 || bios[1] != 0xaa) {
+ return false;
+ }
+ rdev->bios = kmemdup(bios, size, GFP_KERNEL);
+ if (rdev->bios == NULL) {
+ return false;
+ }
+
+ return true;
+}
+
#ifdef CONFIG_ACPI
/* ATRM is used to get the BIOS on the discrete cards in
* dual-gpu systems.
@@ -620,6 +643,9 @@ bool radeon_get_bios(struct radeon_device *rdev)
if (r == false) {
r = radeon_read_disabled_bios(rdev);
}
+ if (r == false) {
+ r = radeon_read_platform_bios(rdev);
+ }
if (r == false || rdev->bios == NULL) {
DRM_ERROR("Unable to locate a BIOS ROM\n");
rdev->bios = NULL;