diff options
| author | Tim Huang <tim.huang@amd.com> | 2022-07-29 18:37:27 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-08-10 15:41:23 -0400 |
| commit | cb9c7ab1b3ddc2702379dd9639df0c2230453c2e (patch) | |
| tree | a9cec727325ae2643dc7d1f6ab144f90329b1172 /drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | |
| parent | bea9a56afbc4b5a41ea579b8b0dc5e189b439504 (diff) | |
drm/amdgpu: enable GFX Power Gating for GC IP v11.0.1
Enable GFX Power Gating control for GC IP v11.0.1.
Signed-off-by: Tim Huang <tim.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c index e03618803a1c..158d87e6805d 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c @@ -53,6 +53,7 @@ #define GFX11_MEC_HPD_SIZE 2048 #define RLCG_UCODE_LOADING_START_ADDRESS 0x00002000L +#define RLC_PG_DELAY_3_DEFAULT_GC_11_0_1 0x1388 #define regCGTT_WD_CLK_CTRL 0x5086 #define regCGTT_WD_CLK_CTRL_BASE_IDX 1 @@ -5279,6 +5280,38 @@ static const struct amdgpu_rlc_funcs gfx_v11_0_rlc_funcs = { .update_spm_vmid = gfx_v11_0_update_spm_vmid, }; +static void gfx_v11_cntl_power_gating(struct amdgpu_device *adev, bool enable) +{ + u32 data = RREG32_SOC15(GC, 0, regRLC_PG_CNTL); + + if (enable && (adev->pg_flags & AMD_PG_SUPPORT_GFX_PG)) + data |= RLC_PG_CNTL__GFX_POWER_GATING_ENABLE_MASK; + else + data &= ~RLC_PG_CNTL__GFX_POWER_GATING_ENABLE_MASK; + + WREG32_SOC15(GC, 0, regRLC_PG_CNTL, data); + + // Program RLC_PG_DELAY3 for CGPG hysteresis + if (enable && (adev->pg_flags & AMD_PG_SUPPORT_GFX_PG)) { + switch (adev->ip_versions[GC_HWIP][0]) { + case IP_VERSION(11, 0, 1): + WREG32_SOC15(GC, 0, regRLC_PG_DELAY_3, RLC_PG_DELAY_3_DEFAULT_GC_11_0_1); + break; + default: + break; + } + } +} + +static void gfx_v11_cntl_pg(struct amdgpu_device *adev, bool enable) +{ + amdgpu_gfx_rlc_enter_safe_mode(adev); + + gfx_v11_cntl_power_gating(adev, enable); + + amdgpu_gfx_rlc_exit_safe_mode(adev); +} + static int gfx_v11_0_set_powergating_state(void *handle, enum amd_powergating_state state) { @@ -5293,6 +5326,11 @@ static int gfx_v11_0_set_powergating_state(void *handle, case IP_VERSION(11, 0, 2): amdgpu_gfx_off_ctrl(adev, enable); break; + case IP_VERSION(11, 0, 1): + gfx_v11_cntl_pg(adev, enable); + /* TODO: Enable this when GFXOFF is ready */ + // amdgpu_gfx_off_ctrl(adev, enable); + break; default: break; } |