From: Philipp Zabel
Date: Wed, 12 Apr 2017 14:13:36 +0000 (+0200)
Subject: etnaviv: stop repeatedly resolving an unchanged resource into its scanout prime buffer
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f30aab76961564e2f0ce34af7d7b38ec43535877;p=mesa.git
etnaviv: stop repeatedly resolving an unchanged resource into its scanout prime buffer
Before resolving a resource into its scanout prime buffer, check that
the prime resource is actually older. If it is not, the resolve is an
expensive no-op, and we better skip it.
Signed-off-by: Philipp Zabel
Reviewed-by: Christian Gmeiner
---
diff --git a/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c b/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
index d555884d3fe..a089fed13ce 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
@@ -593,8 +593,11 @@ etna_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
{
struct etna_resource *rsc = etna_resource(prsc);
- if (rsc->scanout)
+ 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;
+ }
}
void