drm/amd/amdgpu: Enable carrizo GFX PG

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 03a31c5..90b3ca8 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -1249,7 +1249,13 @@ 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 requires workarounds to 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_PIPELINE;
+               }
                adev->external_rev_id = adev->rev_id + 0x1;
                break;
        case CHIP_STONEY: