anv/queue: Allow temporary import of SYNC_FD semaphores
authorJason Ekstrand <jason.ekstrand@intel.com>
Fri, 25 Aug 2017 18:27:15 +0000 (11:27 -0700)
committerJason Ekstrand <jason.ekstrand@intel.com>
Tue, 29 Aug 2017 01:34:06 +0000 (18:34 -0700)
We didn't allow them before because it didn't look like the spec allowed
it.  It certainly doesn't make much sense.  However, there are CTS tests
that apparently hit this.  What the spec actually says is:

    "Importing a payload using handle types with copy transference
    creates a duplicate copy of the payload at the time of import, but
    makes no further reference to it. Fence signaling, waiting, and
    resetting operations performed on the target of copy imports must
    not affect any other fence or payload."

A SYNC_FD has copy transference but the import may be temporary or
permanent.  If you do a permanent import of something with copy
transference, I guess it's supposed to work and end up resetting the
permanent state.  In any case, there seems to be no real harm in
allowing it, so why not.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
src/intel/vulkan/anv_queue.c

index 0a40ebc2e605f8b955d86dd924a049732949122c..03769beccdd8e3e6bebc4b3f04314b545ff85949 100644 (file)
@@ -751,9 +751,6 @@ VkResult anv_ImportSemaphoreFdKHR(
       anv_semaphore_impl_cleanup(device, &semaphore->temporary);
       semaphore->temporary = new_impl;
    } else {
-      /* SYNC_FILE must be a temporary import */
-      assert(new_impl.type != ANV_SEMAPHORE_TYPE_SYNC_FILE);
-
       anv_semaphore_impl_cleanup(device, &semaphore->permanent);
       semaphore->permanent = new_impl;
    }