From a27de35caab59bacf5c47713856739f86ec06e43 Mon Sep 17 00:00:00 2001 From: Christian König Date: Thu, 21 Jan 2016 11:28:53 +0100 Subject: drm/amdgpu: remove the ring lock v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It's not needed any more because all access goes through the scheduler now. v2: Update commit message. Signed-off-by: Christian König Reviewed-by: Chunming Zhou Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index 7d8d84eaea4a..a0da563c8c82 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -623,14 +623,12 @@ force: amdgpu_dpm_print_power_state(adev, adev->pm.dpm.requested_ps); } - mutex_lock(&adev->ring_lock); - /* update whether vce is active */ ps->vce_active = adev->pm.dpm.vce_active; ret = amdgpu_dpm_pre_set_power_state(adev); if (ret) - goto done; + return; /* update display watermarks based on new power state */ amdgpu_display_bandwidth_update(adev); @@ -667,9 +665,6 @@ force: amdgpu_dpm_force_performance_level(adev, adev->pm.dpm.forced_level); } } - -done: - mutex_unlock(&adev->ring_lock); } void amdgpu_dpm_enable_uvd(struct amdgpu_device *adev, bool enable) @@ -802,13 +797,11 @@ void amdgpu_pm_compute_clocks(struct amdgpu_device *adev) int i = 0; amdgpu_display_bandwidth_update(adev); - mutex_lock(&adev->ring_lock); - for (i = 0; i < AMDGPU_MAX_RINGS; i++) { - struct amdgpu_ring *ring = adev->rings[i]; - if (ring && ring->ready) - amdgpu_fence_wait_empty(ring); - } - mutex_unlock(&adev->ring_lock); + for (i = 0; i < AMDGPU_MAX_RINGS; i++) { + struct amdgpu_ring *ring = adev->rings[i]; + if (ring && ring->ready) + amdgpu_fence_wait_empty(ring); + } amdgpu_dpm_dispatch_task(adev, AMD_PP_EVENT_DISPLAY_CONFIG_CHANGE, NULL, NULL); } else { -- cgit v1.2.3