gallium: extend pipe_context::flush for it to accept an END_OF_FRAME flag

Usage with pipe_context:
  pipe->flush(pipe, NULL, PIPE_FLUSH_END_OF_FRAME);

Usage with st_context_iface:
  st->flush(st, ST_FLUSH_END_OF_FRAME, NULL);

The flag is only a hint for drivers. Radeon will use it for buffer eviction
heuristics in the kernel (e.g. for queries like how many frames have passed
since a buffer was used).

The flag is currently only generated by st/dri on SwapBuffers.

Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Stéphane Marchesin <[email protected]>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/gallium/drivers/r300/r300_flush.c b/src/gallium/drivers/r300/r300_flush.c
index 2170c591f99..978a5d93ccf 100644
--- a/src/gallium/drivers/r300/r300_flush.c
+++ b/src/gallium/drivers/r300/r300_flush.c
@@ -133,7 +133,8 @@ void r300_flush(struct pipe_context *pipe,
 }
 
 static void r300_flush_wrapped(struct pipe_context *pipe,
-                               struct pipe_fence_handle **fence)
+                               struct pipe_fence_handle **fence,
+                               enum pipe_flush_flags flags)
 {
     r300_flush(pipe, 0, fence);
 }