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drm/amdgpu/gfx8: Enable GFX PG on CZ

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Based on Alex's patches this enables GFX PG on CZ.

Tested with xonotic-glx/glxgears/supertuxkart and idle desktop.
Also read-back registers via umr for verificiation that the bits
are truly enabled.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tom St Denis 2016-05-17 07:40:16 -04:00 committed by Alex Deucher
parent 7ba0eb6df9
commit 9bf51b0719
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/amd/amdgpu/vi.c
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@ -1222,7 +1222,15 @@ static int vi_common_early_init(void *handle)
AMD_CG_SUPPORT_HDP_LS |
AMD_CG_SUPPORT_SDMA_MGCG |
AMD_CG_SUPPORT_SDMA_LS;
/* rev0 hardware doesn't support PG */
adev->pg_flags = 0;
if (adev->rev_id != 0x00)
adev->pg_flags |= AMD_PG_SUPPORT_GFX_PG |
AMD_PG_SUPPORT_GFX_SMG |
AMD_PG_SUPPORT_GFX_DMG |
AMD_PG_SUPPORT_CP |
AMD_PG_SUPPORT_RLC_SMU_HS |
AMD_PG_SUPPORT_GFX_PIPELINE;
adev->external_rev_id = adev->rev_id + 0x1;
break;
case CHIP_STONEY: