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Commit 9bf51b07 authored by Tom St Denis's avatar Tom St Denis Committed by Alex Deucher
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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: default avatarTom St Denis <tom.stdenis@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 7ba0eb6d

drivers/gpu/drm/amd/amdgpu/vi.c

+8 −0
Original line number Original line Diff line number Diff line
@@ -1222,7 +1222,15 @@ static int vi_common_early_init(void *handle) 
			AMD_CG_SUPPORT_HDP_LS |

			AMD_CG_SUPPORT_HDP_LS |

			AMD_CG_SUPPORT_SDMA_MGCG |

			AMD_CG_SUPPORT_SDMA_MGCG |

			AMD_CG_SUPPORT_SDMA_LS;

			AMD_CG_SUPPORT_SDMA_LS;

		/* rev0 hardware doesn't support PG */

		adev->pg_flags = 0;

		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;

		adev->external_rev_id = adev->rev_id + 0x1;

		break;

		break;

	case CHIP_STONEY:

	case CHIP_STONEY: