| Date | Fri, 08 Jun 2012 05:19:28 +0100 | From | Ben Hutchings <> | Subject | [ 48/82] drm/radeon: fix HD6790, HD6570 backend programming |
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3.2-stable review patch. If anyone has any objections, please let me know.
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From: Jerome Glisse <jglisse@redhat.com>
commit 95c4b23ec4e2fa5604df229ddf134e31d7b3b378 upstream.
Without this bit sets we get broken rendering and lockups.
fglrx sets this bit.
Bugs that should be fixed by this patch : https://bugs.freedesktop.org/show_bug.cgi?id=49792 https://bugzilla.kernel.org/show_bug.cgi?id=43207 https://bugs.freedesktop.org/show_bug.cgi?id=39282
Signed-off-by: Jerome Glisse <jglisse@redhat.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/gpu/drm/radeon/evergreen.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 0408ac2..6a57f0d 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -2178,9 +2178,9 @@ static void evergreen_gpu_init(struct radeon_device *rdev) WREG32(CC_SYS_RB_BACKEND_DISABLE, rb); WREG32(GC_USER_RB_BACKEND_DISABLE, rb); WREG32(CC_GC_SHADER_PIPE_CONFIG, sp); - } + } - grbm_gfx_index |= SE_BROADCAST_WRITES; + grbm_gfx_index = INSTANCE_BROADCAST_WRITES | SE_BROADCAST_WRITES; WREG32(GRBM_GFX_INDEX, grbm_gfx_index); WREG32(RLC_GFX_INDEX, grbm_gfx_index);
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