From: Tom St Denis <tom.stde...@amd.com>

commit 975f543e7522e17b8a4bf34d7daeac44819aee5a upstream.

On my raven1 system (rev c6) with VBIOS 113-RAVEN-114 GFXOFF is
not stable (resulting in large block tiling noise in some applications).

Disabling GFXOFF via the quirk list fixes the problems for me.

Signed-off-by: Tom St Denis <tom.stde...@amd.com>
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Cc: sta...@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 73337e658aff..906648fca9ef 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1177,6 +1177,8 @@ static const struct amdgpu_gfxoff_quirk 
amdgpu_gfxoff_quirk_list[] = {
        { 0x1002, 0x15dd, 0x1002, 0x15dd, 0xc8 },
        /* https://bugzilla.kernel.org/show_bug.cgi?id=207171 */
        { 0x1002, 0x15dd, 0x103c, 0x83e7, 0xd3 },
+       /* GFXOFF is unstable on C6 parts with a VBIOS 113-RAVEN-114 */
+       { 0x1002, 0x15dd, 0x1002, 0x15dd, 0xc6 },
        { 0, 0, 0, 0, 0 },
 };
 
-- 
2.25.1

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