Commit c3693768 authored by Evan Quan's avatar Evan Quan Committed by Alex Deucher
Browse files

drm/amdgpu: no touch for the reserved bit of RLC_CGTT_MGCG_OVERRIDE 



On vega12, the bit0 of RLC_CGTT_MGCG_OVERRIDE is reserved.

Signed-off-by: default avatarEvan Quan <evan.quan@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d26031c1

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

+11 −4
Original line number Diff line number Diff line
@@ -3554,8 +3554,11 @@ static void gfx_v9_0_update_medium_grain_clock_gating(struct amdgpu_device *adev 
	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGCG)) {

		/* 1 - RLC_CGTT_MGCG_OVERRIDE */

		def = data = RREG32_SOC15(GC, 0, mmRLC_CGTT_MGCG_OVERRIDE);

		data &= ~(RLC_CGTT_MGCG_OVERRIDE__CPF_CGTT_SCLK_OVERRIDE_MASK |

			  RLC_CGTT_MGCG_OVERRIDE__GRBM_CGTT_SCLK_OVERRIDE_MASK |



		if (adev->asic_type != CHIP_VEGA12)

			data &= ~RLC_CGTT_MGCG_OVERRIDE__CPF_CGTT_SCLK_OVERRIDE_MASK;



		data &= ~(RLC_CGTT_MGCG_OVERRIDE__GRBM_CGTT_SCLK_OVERRIDE_MASK |

			  RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGCG_OVERRIDE_MASK |

			  RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGLS_OVERRIDE_MASK);
@@ -3585,11 +3588,15 @@ static void gfx_v9_0_update_medium_grain_clock_gating(struct amdgpu_device *adev 
	} else {

		/* 1 - MGCG_OVERRIDE */

		def = data = RREG32_SOC15(GC, 0, mmRLC_CGTT_MGCG_OVERRIDE);

		data |= (RLC_CGTT_MGCG_OVERRIDE__CPF_CGTT_SCLK_OVERRIDE_MASK |

			 RLC_CGTT_MGCG_OVERRIDE__RLC_CGTT_SCLK_OVERRIDE_MASK |



		if (adev->asic_type != CHIP_VEGA12)

			data |= RLC_CGTT_MGCG_OVERRIDE__CPF_CGTT_SCLK_OVERRIDE_MASK;



		data |= (RLC_CGTT_MGCG_OVERRIDE__RLC_CGTT_SCLK_OVERRIDE_MASK |

			 RLC_CGTT_MGCG_OVERRIDE__GRBM_CGTT_SCLK_OVERRIDE_MASK |

			 RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGCG_OVERRIDE_MASK |

			 RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGLS_OVERRIDE_MASK);



		if (def != data)

			WREG32_SOC15(GC, 0, mmRLC_CGTT_MGCG_OVERRIDE, data);