sna: After an operation on the CPU, prefer not to use the GPU

A nasty habit of applications is to fill an area, only to read it back
with GetImage, render locally and replace with PutImage. This causes a
readback of an active bo everytime, so let's try to mitigate that by
preferring not to use the GPU after a forced readback.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/sna/sna.h b/src/sna/sna.h
index 66ee6c00..9d365439 100644
--- a/src/sna/sna.h
+++ b/src/sna/sna.h
@@ -140,6 +140,7 @@ struct sna_pixmap {
 	uint8_t undamaged :1;
 	uint8_t create :3;
 	uint8_t header :1;
+	uint8_t cpu :1;
 };
 
 struct sna_glyph {