From b255b6488338abee61b1264469f679e7eb96292a Mon Sep 17 00:00:00 2001 From: Alexandre Demers Date: Fri, 4 Apr 2025 01:42:25 -0400 Subject: [PATCH] drm/amdgpu: fill in gmc_v6_0_set_clockgating_state() Pretty much was already there, just not ported to amdgpu. Tested-by: Alexandre Demers Signed-off-by: Alexandre Demers Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 44 +++++++++++++++++---------- 1 file changed, 28 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c index b4567d619d09..8030fcd64210 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c @@ -627,17 +627,16 @@ static void gmc_v6_0_vm_decode_fault(struct amdgpu_device *adev, "write" : "read", block, mc_client, mc_id); } -/* static const u32 mc_cg_registers[] = { - MC_HUB_MISC_HUB_CG, - MC_HUB_MISC_SIP_CG, - MC_HUB_MISC_VM_CG, - MC_XPB_CLK_GAT, - ATC_MISC_CG, - MC_CITF_MISC_WR_CG, - MC_CITF_MISC_RD_CG, - MC_CITF_MISC_VM_CG, - VM_L2_CG, + mmMC_HUB_MISC_HUB_CG, + mmMC_HUB_MISC_SIP_CG, + mmMC_HUB_MISC_VM_CG, + mmMC_XPB_CLK_GAT, + mmATC_MISC_CG, + mmMC_CITF_MISC_WR_CG, + mmMC_CITF_MISC_RD_CG, + mmMC_CITF_MISC_VM_CG, + mmVM_L2_CG, }; static const u32 mc_cg_ls_en[] = { @@ -672,7 +671,7 @@ static void gmc_v6_0_enable_mc_ls(struct amdgpu_device *adev, for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) { orig = data = RREG32(mc_cg_registers[i]); - if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_LS)) + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS)) data |= mc_cg_ls_en[i]; else data &= ~mc_cg_ls_en[i]; @@ -689,7 +688,7 @@ static void gmc_v6_0_enable_mc_mgcg(struct amdgpu_device *adev, for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) { orig = data = RREG32(mc_cg_registers[i]); - if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_MGCG)) + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) data |= mc_cg_en[i]; else data &= ~mc_cg_en[i]; @@ -705,7 +704,7 @@ static void gmc_v6_0_enable_bif_mgls(struct amdgpu_device *adev, orig = data = RREG32_PCIE(ixPCIE_CNTL2); - if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_BIF_LS)) { + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) { data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1); data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1); data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1); @@ -728,7 +727,7 @@ static void gmc_v6_0_enable_hdp_mgcg(struct amdgpu_device *adev, orig = data = RREG32(mmHDP_HOST_PATH_CNTL); - if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_MGCG)) + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG)) data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0); else data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1); @@ -744,7 +743,7 @@ static void gmc_v6_0_enable_hdp_ls(struct amdgpu_device *adev, orig = data = RREG32(mmHDP_MEM_POWER_LS); - if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_LS)) + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS)) data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1); else data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0); @@ -752,7 +751,6 @@ static void gmc_v6_0_enable_hdp_ls(struct amdgpu_device *adev, if (orig != data) WREG32(mmHDP_MEM_POWER_LS, data); } -*/ static int gmc_v6_0_convert_vram_type(int mc_seq_vram_type) { @@ -1098,6 +1096,20 @@ static int gmc_v6_0_process_interrupt(struct amdgpu_device *adev, static int gmc_v6_0_set_clockgating_state(struct amdgpu_ip_block *ip_block, enum amd_clockgating_state state) { + struct amdgpu_device *adev = ip_block->adev; + bool gate = false; + + if (state == AMD_CG_STATE_GATE) + gate = true; + + if (!(adev->flags & AMD_IS_APU)) { + gmc_v6_0_enable_mc_mgcg(adev, gate); + gmc_v6_0_enable_mc_ls(adev, gate); + } + gmc_v6_0_enable_bif_mgls(adev, gate); + gmc_v6_0_enable_hdp_mgcg(adev, gate); + gmc_v6_0_enable_hdp_ls(adev, gate); + return 0; } -- 2.25.1