[Mesa-dev] [PATCH] etnaviv: only flush resource to self if no scanout buffer exists
Lucas Stach
l.stach at pengutronix.de
Mon Jun 26 10:25:08 UTC 2017
Currently a resource flush may trigger a self resolve, even if a scanout buffer
exists, but is up to date. If a scanout buffer exists we only ever want to
flush the resource to the scanout buffer. This fixes a performance regression.
Fixes: dda956340ce9 (etnaviv: resolve tile status when flushing resource)
Cc: mesa-stable at lists.freedesktop.org
Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
---
src/gallium/drivers/etnaviv/etnaviv_clear_blit.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c b/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
index e4620a3015e9..80967be3f93d 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
@@ -602,10 +602,11 @@ etna_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
{
struct etna_resource *rsc = etna_resource(prsc);
- if (rsc->scanout &&
- etna_resource_older(etna_resource(rsc->scanout->prime), rsc)) {
- etna_copy_resource(pctx, rsc->scanout->prime, prsc, 0, 0);
- etna_resource(rsc->scanout->prime)->seqno = rsc->seqno;
+ if (rsc->scanout) {
+ if (etna_resource_older(etna_resource(rsc->scanout->prime), rsc)) {
+ etna_copy_resource(pctx, rsc->scanout->prime, prsc, 0, 0);
+ etna_resource(rsc->scanout->prime)->seqno = rsc->seqno;
+ }
} else if (etna_resource_needs_flush(rsc)) {
etna_copy_resource(pctx, prsc, prsc, 0, 0);
rsc->flush_seqno = rsc->seqno;
--
2.11.0
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