From: Tom St Denis Date: Tue, 17 May 2016 11:40:16 +0000 (-0400) Subject: drm/amdgpu/gfx8: Enable GFX PG on CZ X-Git-Tag: v4.8-rc1~62^2~23^2~175 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9bf51b07196a8a53a71bea3c60ad0b5c01a446e6;p=karo-tx-linux.git drm/amdgpu/gfx8: Enable GFX PG on CZ 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 Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index a65c96029476..c1cc7cc1498b 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -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: