diff options
| author | Prike Liang <[email protected]> | 2024-12-16 08:37:58 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2025-01-06 19:44:29 +0000 |
| commit | 2b11179e1878fafcc5c63de726d1b6b8b281e8e9 (patch) | |
| tree | 7a0717905dfeb505ec712837cae5b862a19cd164 /drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | |
| parent | Revert "drm/amd/display: Optimize cursor position updates" (diff) | |
| download | kernel-2b11179e1878fafcc5c63de726d1b6b8b281e8e9.tar.gz kernel-2b11179e1878fafcc5c63de726d1b6b8b281e8e9.zip | |
drm/amdgpu: reduce RLC safe mode request for gfx clock gating
The driver can only request one time for the power safe mode instead of
polling and disabling the power feature each time prior to program the
GFX clock gating control registers. This update will reduce the latency
on the GFX clock gating entry.
Signed-off-by: Prike Liang <[email protected]>
Reviewed-by: Lijo Lazar <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index af73f85527b7..6a025438f9d0 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -5639,8 +5639,6 @@ static void gfx_v8_0_update_medium_grain_clock_gating(struct amdgpu_device *adev { uint32_t temp, data; - amdgpu_gfx_rlc_enter_safe_mode(adev, 0); - /* It is disabled by HW by default */ if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGCG)) { if (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGLS) { @@ -5734,8 +5732,6 @@ static void gfx_v8_0_update_medium_grain_clock_gating(struct amdgpu_device *adev /* 7- wait for RLC_SERDES_CU_MASTER & RLC_SERDES_NONCU_MASTER idle */ gfx_v8_0_wait_for_rlc_serdes(adev); } - - amdgpu_gfx_rlc_exit_safe_mode(adev, 0); } static void gfx_v8_0_update_coarse_grain_clock_gating(struct amdgpu_device *adev, @@ -5745,8 +5741,6 @@ static void gfx_v8_0_update_coarse_grain_clock_gating(struct amdgpu_device *adev temp = data = RREG32(mmRLC_CGCG_CGLS_CTRL); - amdgpu_gfx_rlc_enter_safe_mode(adev, 0); - if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_CGCG)) { temp1 = data1 = RREG32(mmRLC_CGTT_MGCG_OVERRIDE); data1 &= ~RLC_CGTT_MGCG_OVERRIDE__CGCG_MASK; @@ -5827,12 +5821,12 @@ static void gfx_v8_0_update_coarse_grain_clock_gating(struct amdgpu_device *adev } gfx_v8_0_wait_for_rlc_serdes(adev); - - amdgpu_gfx_rlc_exit_safe_mode(adev, 0); } static int gfx_v8_0_update_gfx_clock_gating(struct amdgpu_device *adev, bool enable) { + amdgpu_gfx_rlc_enter_safe_mode(adev, 0); + if (enable) { /* CGCG/CGLS should be enabled after MGCG/MGLS/TS(CG/LS) * === MGCG + MGLS + TS(CG/LS) === @@ -5846,6 +5840,8 @@ static int gfx_v8_0_update_gfx_clock_gating(struct amdgpu_device *adev, gfx_v8_0_update_coarse_grain_clock_gating(adev, enable); gfx_v8_0_update_medium_grain_clock_gating(adev, enable); } + + amdgpu_gfx_rlc_exit_safe_mode(adev, 0); return 0; } |