From: Andrey Grodzovsky Date: Thu, 17 May 2018 15:18:34 +0000 (-0400) Subject: Remove calls to suspend/resume atomic helpers from amdgpu_device_gpu_recover. (v2) X-Git-Tag: v4.19~774^2~6^2~25 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bf83060408fea52eccdcf695f3b4b16c71207691;p=platform%2Fkernel%2Flinux-rpi.git Remove calls to suspend/resume atomic helpers from amdgpu_device_gpu_recover. (v2) First of all it's already being called from the display code from amd_ip_funcs.suspend/resume hooks. Second of all, the place in amdgpu_device_gpu_recover it's being called is wrong for GPU stalls since it is called BEFORE we cancel and force completion of all in flight jobs which were not yet processed. So, as Bas pointed in the ticket we will try to wait for fence in amdgpu_pm_compute_clocks but the pipe is hanged so we end up in deadlock. v2: remove unused variable Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106500 Signed-off-by: Andrey Grodzovsky Reviewed-by: Harry Wentland Reviewed-by: Christian König Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 0e3f69d..adeb48e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3176,7 +3176,6 @@ error: int amdgpu_device_gpu_recover(struct amdgpu_device *adev, struct amdgpu_job *job, bool force) { - struct drm_atomic_state *state = NULL; int i, r, resched; if (!force && !amdgpu_device_ip_check_soft_reset(adev)) { @@ -3199,10 +3198,6 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev, /* block TTM */ resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev); - /* store modesetting */ - if (amdgpu_device_has_dc_support(adev)) - state = drm_atomic_helper_suspend(adev->ddev); - /* block all schedulers and reset given job's ring */ for (i = 0; i < AMDGPU_MAX_RINGS; ++i) { struct amdgpu_ring *ring = adev->rings[i]; @@ -3242,10 +3237,7 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev, kthread_unpark(ring->sched.thread); } - if (amdgpu_device_has_dc_support(adev)) { - if (drm_atomic_helper_resume(adev->ddev, state)) - dev_info(adev->dev, "drm resume failed:%d\n", r); - } else { + if (!amdgpu_device_has_dc_support(adev)) { drm_helper_resume_force_mode(adev->ddev); }