From b7e4dad3e1fc5d3909737fb72e57aedeb0072c7f Mon Sep 17 00:00:00 2001 From: Christian König Date: Tue, 1 Sep 2015 10:50:26 +0200 Subject: drm/amdgpu: remove old lockup detection infrastructure MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It didn't worked to well anyway. Signed-off-by: Christian König Reviewed-by: Chunming Zhou Reviewed-by: Junwei Zhang --- drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 43 -------------------------------- 1 file changed, 43 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c index b13a74b273a6..b2df348aa223 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c @@ -67,8 +67,6 @@ void amdgpu_ring_free_size(struct amdgpu_ring *ring) if (!ring->ring_free_dw) { /* this is an empty ring */ ring->ring_free_dw = ring->ring_size / 4; - /* update lockup info to avoid false positive */ - amdgpu_ring_lockup_update(ring); } } @@ -208,46 +206,6 @@ void amdgpu_ring_unlock_undo(struct amdgpu_ring *ring) mutex_unlock(ring->ring_lock); } -/** - * amdgpu_ring_lockup_update - update lockup variables - * - * @ring: amdgpu_ring structure holding ring information - * - * Update the last rptr value and timestamp (all asics). - */ -void amdgpu_ring_lockup_update(struct amdgpu_ring *ring) -{ - atomic_set(&ring->last_rptr, amdgpu_ring_get_rptr(ring)); - atomic64_set(&ring->last_activity, jiffies_64); -} - -/** - * amdgpu_ring_test_lockup() - check if ring is lockedup by recording information - * @ring: amdgpu_ring structure holding ring information - * - */ -bool amdgpu_ring_test_lockup(struct amdgpu_ring *ring) -{ - uint32_t rptr = amdgpu_ring_get_rptr(ring); - uint64_t last = atomic64_read(&ring->last_activity); - uint64_t elapsed; - - if (rptr != atomic_read(&ring->last_rptr)) { - /* ring is still working, no lockup */ - amdgpu_ring_lockup_update(ring); - return false; - } - - elapsed = jiffies_to_msecs(jiffies_64 - last); - if (amdgpu_lockup_timeout && elapsed >= amdgpu_lockup_timeout) { - dev_err(ring->adev->dev, "ring %d stalled for more than %llumsec\n", - ring->idx, elapsed); - return true; - } - /* give a chance to the GPU ... */ - return false; -} - /** * amdgpu_ring_backup - Back up the content of a ring * @@ -436,7 +394,6 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring, if (amdgpu_debugfs_ring_init(adev, ring)) { DRM_ERROR("Failed to register debugfs file for rings !\n"); } - amdgpu_ring_lockup_update(ring); return 0; } -- cgit