On 23/05/2019 12:52, Chris Wilson wrote:
Quoting Lionel Landwerlin (2019-05-23 12:46:20)
- syncobj = drm_syncobj_find(file, fence.handle);
- if (!syncobj) {
- DRM_DEBUG("Invalid syncobj handle provided\n");
- err = -ENOENT;
- goto err;
+ if (user_fence.flags & __I915_EXEC_FENCE_UNKNOWN_FLAGS) {
+ err = -EINVAL;
+ goto err;
+ }
+
+ if (user_fence.flags & I915_EXEC_FENCE_WAIT) {
+ err = drm_syncobj_find_fence(
+ file, user_fence.handle, user_fence.value,
+ DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT,
+ &syncobj, &fence);
Is this still a synchronous wait? That would be an unfortunate change in
behaviour and antithesis to having a scheduler.
-Chris
Not sure what you mean by synchronous wait.
We have to be able to call the submit before all the fences we depend on
have materialized.
-Lionel
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