From e61235db62c5e68e56e59bea62b88f9f3d7a3cf5 Mon Sep 17 00:00:00 2001 From: Christian König Date: Tue, 25 Aug 2015 11:05:36 +0200 Subject: drm/amdgpu: add scheduler dependency callback v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This way the scheduler doesn't wait in it's work thread any more. v2: fix race conditions Signed-off-by: Christian König Reviewed-by: Chunming Zhou Reviewed-by: Jammy Zhou --- drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c index 4fffb2539331..69b7d4540c6e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c @@ -202,6 +202,28 @@ int amdgpu_sync_resv(struct amdgpu_device *adev, return r; } +struct fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync) +{ + struct amdgpu_sync_entry *e; + struct hlist_node *tmp; + struct fence *f; + int i; + + hash_for_each_safe(sync->fences, i, tmp, e, node) { + + f = e->fence; + + hash_del(&e->node); + kfree(e); + + if (!fence_is_signaled(f)) + return f; + + fence_put(f); + } + return NULL; +} + int amdgpu_sync_wait(struct amdgpu_sync *sync) { struct amdgpu_sync_entry *e; -- cgit v1.2.3