i965/sync: Implement fences based on Linux sync_file
This patch implements a new type of struct brw_fence, one that is based
struct sync_file.
This completes support for EGL_ANDROID_native_fence_sync.
* Background
Linux 4.7 added a new file type, struct sync_file. See
commit 460bfc41fd52959311ed0328163f785e023857af
Author: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Thu Apr 28 10:46:57 2016 -0300
Subject: dma-buf/sync_file: de-stage sync_file headers
A sync file is a cross-driver explicit synchronization primitive. In a
sense, sync_file's relation to synchronization is similar to dma_buf's
relation to memory: both are primitives that can be imported and
exported across drivers (at least in theory).
1 file changed
