From a0d69786b5e8c39f8e8a24422a05d3f1f4434b4d Mon Sep 17 00:00:00 2001 From: Eric Huang <JinHuiEric.Huang@amd.com> Date: Tue, 10 Nov 2015 11:27:39 -0500 Subject: [PATCH] drm/amd/amdgpu: add gmc clock gating support for Fiji. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com> --- 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 a2d869d30cf4..6e2331f70b39 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c @@ -1328,9 +1328,181 @@ 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; }