docs/gallium: Clarify ordering requiremenets on fence_server_signal and fence_server_sync

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36007>
2025-08-27 14:34:20 +02:00
parent a7966f693b
commit 7154180b67
1 changed files with 4 additions and 0 deletions
--- a/docs/gallium/context.rst
+++ b/docs/gallium/context.rst
@@ -652,6 +652,10 @@ call to ``flush`` is required to make sure the commands are emitted to the GPU.
 The Gallium implementation may implicitly ``flush`` the command stream during a
 ``fence_server_sync`` or ``fence_server_signal`` call if necessary.

+Gallium frontends must ensure that ``fence_server_signal`` returns before calling
+``fence_server_sync`` on the same ``pipe_fence_handle`` even if those calls are made on
+a different ``pipe_context``.
+
 Resource Busy Queries
 ^^^^^^^^^^^^^^^^^^^^^