@@ -3081,6 +3081,11 @@ static int evergreen_startup(struct radeon_device *rdev)
/* enable pcie gen2 link */
evergreen_pcie_gen2_enable(rdev);
+ /* scratch needs to be initialized before MC */
+ r = r600_vram_scratch_init(rdev);
+ if (r)
+ return r;
+
evergreen_mc_program(rdev);
if (ASIC_IS_DCE5(rdev)) {
@@ -3106,10 +3111,6 @@ static int evergreen_startup(struct radeon_device *rdev)
}
}
- r = r600_vram_scratch_init(rdev);
- if (r)
- return r;
-
if (rdev->flags & RADEON_IS_AGP) {
evergreen_agp_enable(rdev);
} else {
@@ -1239,6 +1239,11 @@ static int cayman_startup(struct radeon_device *rdev)
/* enable pcie gen2 link */
evergreen_pcie_gen2_enable(rdev);
+ /* scratch needs to be initialized before MC */
+ r = r600_vram_scratch_init(rdev);
+ if (r)
+ return r;
+
evergreen_mc_program(rdev);
if (rdev->flags & RADEON_IS_IGP) {
@@ -1265,10 +1270,6 @@ static int cayman_startup(struct radeon_device *rdev)
}
}
- r = r600_vram_scratch_init(rdev);
- if (r)
- return r;
-
r = cayman_pcie_gart_enable(rdev);
if (r)
return r;
@@ -2361,6 +2361,11 @@ int r600_startup(struct radeon_device *rdev)
/* enable pcie gen2 link */
r600_pcie_gen2_enable(rdev);
+ /* scratch needs to be initialized before MC */
+ r = r600_vram_scratch_init(rdev);
+ if (r)
+ return r;
+
r600_mc_program(rdev);
if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
@@ -2371,10 +2376,6 @@ int r600_startup(struct radeon_device *rdev)
}
}
- r = r600_vram_scratch_init(rdev);
- if (r)
- return r;
-
if (rdev->flags & RADEON_IS_AGP) {
r600_agp_enable(rdev);
} else {
@@ -890,6 +890,11 @@ static int rv770_startup(struct radeon_device *rdev)
/* enable pcie gen2 link */
rv770_pcie_gen2_enable(rdev);
+ /* scratch needs to be initialized before MC */
+ r = r600_vram_scratch_init(rdev);
+ if (r)
+ return r;
+
rv770_mc_program(rdev);
if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
@@ -900,10 +905,6 @@ static int rv770_startup(struct radeon_device *rdev)
}
}
- r = r600_vram_scratch_init(rdev);
- if (r)
- return r;
-
if (rdev->flags & RADEON_IS_AGP) {
rv770_agp_enable(rdev);
} else {
@@ -3698,6 +3698,11 @@ static int si_startup(struct radeon_device *rdev)
struct radeon_ring *ring;
int r;
+ /* scratch needs to be initialized before MC */
+ r = r600_vram_scratch_init(rdev);
+ if (r)
+ return r;
+
si_mc_program(rdev);
if (!rdev->me_fw || !rdev->pfp_fw || !rdev->ce_fw ||
@@ -3715,10 +3720,6 @@ static int si_startup(struct radeon_device *rdev)
return r;
}
- r = r600_vram_scratch_init(rdev);
- if (r)
- return r;
-
r = si_pcie_gart_enable(rdev);
if (r)
return r;
This is a note to let you know that I have just added a patch titled drm/radeon: fix init ordering for r600+ to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ From ef9d91ee2fe789cad8ae4340408c17f308090340 Mon Sep 17 00:00:00 2001 From: Alex Deucher <alexander.deucher@amd.com> Date: Fri, 30 Aug 2013 08:58:20 -0400 Subject: [PATCH] drm/radeon: fix init ordering for r600+ commit e5903d399a7b0e5c14673c1206f4aeec2859c730 upstream. The vram scratch buffer needs to be initialized before the mc is programmed otherwise we program 0 as the GPU address of the default GPU fault page. In most cases we put vram at zero anyway and reserve a page for the legacy vga buffer so in practice this shouldn't cause any problems, but better to make it correct. Was changed in: 6fab3febf6d949b0a12b1e4e73db38e4a177a79e Reported-by: FrankR Huang <FrankR.Huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> [ luis: backported to 3.5: - adjusted context -dropped changes to drivers/gpu/drm/radeon/cik.c ] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/gpu/drm/radeon/evergreen.c | 9 +++++---- drivers/gpu/drm/radeon/ni.c | 9 +++++---- drivers/gpu/drm/radeon/r600.c | 9 +++++---- drivers/gpu/drm/radeon/rv770.c | 9 +++++---- drivers/gpu/drm/radeon/si.c | 9 +++++---- 5 files changed, 25 insertions(+), 20 deletions(-) -- 1.8.3.2