From 0690f9c20ec6f732f6f19249bcaef94c12e3b55a Mon Sep 17 00:00:00 2001 From: Eric Huang Date: Tue, 10 Nov 2015 11:27:39 -0500 Subject: [PATCH 0092/1110] drm/amd/amdgpu: add gmc clock gating support for Fiji. Reviewed-by: Alex Deucher Reviewed-by: Jammy Zhou Signed-off-by: Eric Huang --- drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 172 ++++++++++++++++++++++++++++++++++ 1 file changed, 172 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c index 3d4a923..2fcfa97 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c @@ -1307,9 +1307,181 @@ static int gmc_v8_0_process_interrupt(struct amdgpu_device *adev, return 0; } +static void fiji_update_mc_medium_grain_clock_gating(struct amdgpu_device *adev, + bool enable) +{ + uint32_t data; + + if (enable) { + data = RREG32(mmMC_HUB_MISC_HUB_CG); + data |= MC_HUB_MISC_HUB_CG__ENABLE_MASK; + WREG32(mmMC_HUB_MISC_HUB_CG, data); + + data = RREG32(mmMC_HUB_MISC_SIP_CG); + data |= MC_HUB_MISC_SIP_CG__ENABLE_MASK; + WREG32(mmMC_HUB_MISC_SIP_CG, data); + + data = RREG32(mmMC_HUB_MISC_VM_CG); + data |= MC_HUB_MISC_VM_CG__ENABLE_MASK; + WREG32(mmMC_HUB_MISC_VM_CG, data); + + data = RREG32(mmMC_XPB_CLK_GAT); + data |= MC_XPB_CLK_GAT__ENABLE_MASK; + WREG32(mmMC_XPB_CLK_GAT, data); + + data = RREG32(mmATC_MISC_CG); + data |= ATC_MISC_CG__ENABLE_MASK; + WREG32(mmATC_MISC_CG, data); + + data = RREG32(mmMC_CITF_MISC_WR_CG); + data |= MC_CITF_MISC_WR_CG__ENABLE_MASK; + WREG32(mmMC_CITF_MISC_WR_CG, data); + + data = RREG32(mmMC_CITF_MISC_RD_CG); + data |= MC_CITF_MISC_RD_CG__ENABLE_MASK; + WREG32(mmMC_CITF_MISC_RD_CG, data); + + data = RREG32(mmMC_CITF_MISC_VM_CG); + data |= MC_CITF_MISC_VM_CG__ENABLE_MASK; + WREG32(mmMC_CITF_MISC_VM_CG, data); + + data = RREG32(mmVM_L2_CG); + data |= VM_L2_CG__ENABLE_MASK; + WREG32(mmVM_L2_CG, data); + } else { + data = RREG32(mmMC_HUB_MISC_HUB_CG); + data &= ~MC_HUB_MISC_HUB_CG__ENABLE_MASK; + WREG32(mmMC_HUB_MISC_HUB_CG, data); + + data = RREG32(mmMC_HUB_MISC_SIP_CG); + data &= ~MC_HUB_MISC_SIP_CG__ENABLE_MASK; + WREG32(mmMC_HUB_MISC_SIP_CG, data); + + data = RREG32(mmMC_HUB_MISC_VM_CG); + data &= ~MC_HUB_MISC_VM_CG__ENABLE_MASK; + WREG32(mmMC_HUB_MISC_VM_CG, data); + + data = RREG32(mmMC_XPB_CLK_GAT); + data &= ~MC_XPB_CLK_GAT__ENABLE_MASK; + WREG32(mmMC_XPB_CLK_GAT, data); + + data = RREG32(mmATC_MISC_CG); + data &= ~ATC_MISC_CG__ENABLE_MASK; + WREG32(mmATC_MISC_CG, data); + + data = RREG32(mmMC_CITF_MISC_WR_CG); + data &= ~MC_CITF_MISC_WR_CG__ENABLE_MASK; + WREG32(mmMC_CITF_MISC_WR_CG, data); + + data = RREG32(mmMC_CITF_MISC_RD_CG); + data &= ~MC_CITF_MISC_RD_CG__ENABLE_MASK; + WREG32(mmMC_CITF_MISC_RD_CG, data); + + data = RREG32(mmMC_CITF_MISC_VM_CG); + data &= ~MC_CITF_MISC_VM_CG__ENABLE_MASK; + WREG32(mmMC_CITF_MISC_VM_CG, data); + + data = RREG32(mmVM_L2_CG); + data &= ~VM_L2_CG__ENABLE_MASK; + WREG32(mmVM_L2_CG, data); + } +} + +static void fiji_update_mc_light_sleep(struct amdgpu_device *adev, + bool enable) +{ + uint32_t data; + + if (enable) { + data = RREG32(mmMC_HUB_MISC_HUB_CG); + data |= MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_HUB_MISC_HUB_CG, data); + + data = RREG32(mmMC_HUB_MISC_SIP_CG); + data |= MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_HUB_MISC_SIP_CG, data); + + data = RREG32(mmMC_HUB_MISC_VM_CG); + data |= MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_HUB_MISC_VM_CG, data); + + data = RREG32(mmMC_XPB_CLK_GAT); + data |= MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK; + WREG32(mmMC_XPB_CLK_GAT, data); + + data = RREG32(mmATC_MISC_CG); + data |= ATC_MISC_CG__MEM_LS_ENABLE_MASK; + WREG32(mmATC_MISC_CG, data); + + data = RREG32(mmMC_CITF_MISC_WR_CG); + data |= MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_CITF_MISC_WR_CG, data); + + data = RREG32(mmMC_CITF_MISC_RD_CG); + data |= MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_CITF_MISC_RD_CG, data); + + data = RREG32(mmMC_CITF_MISC_VM_CG); + data |= MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_CITF_MISC_VM_CG, data); + + data = RREG32(mmVM_L2_CG); + data |= VM_L2_CG__MEM_LS_ENABLE_MASK; + WREG32(mmVM_L2_CG, data); + } else { + data = RREG32(mmMC_HUB_MISC_HUB_CG); + data &= ~MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_HUB_MISC_HUB_CG, data); + + data = RREG32(mmMC_HUB_MISC_SIP_CG); + data &= ~MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_HUB_MISC_SIP_CG, data); + + data = RREG32(mmMC_HUB_MISC_VM_CG); + data &= ~MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_HUB_MISC_VM_CG, data); + + data = RREG32(mmMC_XPB_CLK_GAT); + data &= ~MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK; + WREG32(mmMC_XPB_CLK_GAT, data); + + data = RREG32(mmATC_MISC_CG); + data &= ~ATC_MISC_CG__MEM_LS_ENABLE_MASK; + WREG32(mmATC_MISC_CG, data); + + data = RREG32(mmMC_CITF_MISC_WR_CG); + data &= ~MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_CITF_MISC_WR_CG, data); + + data = RREG32(mmMC_CITF_MISC_RD_CG); + data &= ~MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_CITF_MISC_RD_CG, data); + + data = RREG32(mmMC_CITF_MISC_VM_CG); + data &= ~MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK; + WREG32(mmMC_CITF_MISC_VM_CG, data); + + data = RREG32(mmVM_L2_CG); + data &= ~VM_L2_CG__MEM_LS_ENABLE_MASK; + WREG32(mmVM_L2_CG, data); + } +} + static int gmc_v8_0_set_clockgating_state(void *handle, enum amd_clockgating_state state) { + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + switch (adev->asic_type) { + case CHIP_FIJI: + fiji_update_mc_medium_grain_clock_gating(adev, + state == AMD_CG_STATE_GATE ? true : false); + fiji_update_mc_light_sleep(adev, + state == AMD_CG_STATE_GATE ? true : false); + break; + default: + break; + } return 0; } -- 2.7.4