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| author | Alex Deucher <alexander.deucher@amd.com> | 2025-01-09 01:15:56 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-02-13 05:02:55 +0300 |
| commit | 8fdb3958e3965fcd11408e1cd5380895cdc96e06 (patch) | |
| tree | a99761a32a34e687ff6dda3171f1fc3068546859 /drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | |
| parent | 8544374c0f82edb285779f21b149826fe2c2977c (diff) | |
| download | linux-8fdb3958e3965fcd11408e1cd5380895cdc96e06.tar.xz | |
drm/amdgpu/gfx: add ring helpers for setting workload profile
Add helpers to switch the workload profile dynamically when
commands are submitted. This allows us to switch to
the FULLSCREEN3D or COMPUTE profile when work is submitted.
Add a delayed work handler to delay switching out of the
selected profile if additional work comes in. This works
the same as the VIDEO profile for VCN. This lets dynamically
enable workload profiles on the fly and then move back
to the default when there is no work.
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c index 784b03abb3a4..645efe002d06 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c @@ -2118,6 +2118,63 @@ void amdgpu_gfx_enforce_isolation_ring_end_use(struct amdgpu_ring *ring) amdgpu_gfx_kfd_sch_ctrl(adev, idx, true); } +void amdgpu_gfx_profile_idle_work_handler(struct work_struct *work) +{ + struct amdgpu_device *adev = + container_of(work, struct amdgpu_device, gfx.idle_work.work); + enum PP_SMC_POWER_PROFILE profile; + u32 i, fences = 0; + int r; + + if (adev->gfx.num_gfx_rings) + profile = PP_SMC_POWER_PROFILE_FULLSCREEN3D; + else + profile = PP_SMC_POWER_PROFILE_COMPUTE; + + for (i = 0; i < AMDGPU_MAX_GFX_RINGS; ++i) + fences += amdgpu_fence_count_emitted(&adev->gfx.gfx_ring[i]); + for (i = 0; i < (AMDGPU_MAX_COMPUTE_RINGS * AMDGPU_MAX_GC_INSTANCES); ++i) + fences += amdgpu_fence_count_emitted(&adev->gfx.compute_ring[i]); + if (!fences && !atomic_read(&adev->gfx.total_submission_cnt)) { + r = amdgpu_dpm_switch_power_profile(adev, profile, false); + if (r) + dev_warn(adev->dev, "(%d) failed to disable %s power profile mode\n", r, + profile == PP_SMC_POWER_PROFILE_FULLSCREEN3D ? + "fullscreen 3D" : "compute"); + } else { + schedule_delayed_work(&adev->gfx.idle_work, GFX_PROFILE_IDLE_TIMEOUT); + } +} + +void amdgpu_gfx_profile_ring_begin_use(struct amdgpu_ring *ring) +{ + struct amdgpu_device *adev = ring->adev; + enum PP_SMC_POWER_PROFILE profile; + int r; + + if (adev->gfx.num_gfx_rings) + profile = PP_SMC_POWER_PROFILE_FULLSCREEN3D; + else + profile = PP_SMC_POWER_PROFILE_COMPUTE; + + atomic_inc(&adev->gfx.total_submission_cnt); + + if (!cancel_delayed_work_sync(&adev->gfx.idle_work)) { + r = amdgpu_dpm_switch_power_profile(adev, profile, true); + if (r) + dev_warn(adev->dev, "(%d) failed to disable %s power profile mode\n", r, + profile == PP_SMC_POWER_PROFILE_FULLSCREEN3D ? + "fullscreen 3D" : "compute"); + } +} + +void amdgpu_gfx_profile_ring_end_use(struct amdgpu_ring *ring) +{ + atomic_dec(&ring->adev->gfx.total_submission_cnt); + + schedule_delayed_work(&ring->adev->gfx.idle_work, GFX_PROFILE_IDLE_TIMEOUT); +} + /* * debugfs for to enable/disable gfx job submission to specific core. */ |