GFX_PG causes visual (and likely memory) corruption on laptop
raven parts. Until it's fully diagnosed let's disable it to ensure
stable operation.
Tested on a Dell Latitude 5495.
Signed-off-by: Tom St Denis <tom.stde...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/soc15.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c
b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 77e679920c1c..27a500f75f57 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -1138,6 +1138,11 @@ static int soc15_common_early_init(void *handle)
adev->pg_flags |= AMD_PG_SUPPORT_GFX_PG |
AMD_PG_SUPPORT_CP |
AMD_PG_SUPPORT_RLC_SMU_HS;
+
+ // disable GFX_PG until debugged.
+ if (adev->external_rev_id == 0x21)
+ adev->pg_flags &= ~AMD_PG_SUPPORT_GFX_PG;
+
break;
case CHIP_ARCTURUS:
adev->asic_funcs = &vega20_asic_funcs;
--
2.21.0
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