[ 28/47] drm/radeon: fix HD6790, HD6570 backend programming
From: Greg KH <gregkh@linuxfoundation.org>
Date: 2012-06-07 04:24:42
Also in:
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3.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jerome Glisse <redacted> 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 <redacted> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/gpu/drm/radeon/evergreen.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c@@ -2069,9 +2069,9 @@ static void evergreen_gpu_init(struct ra 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);