Mesa (master): etnaviv: Use write combine instead of unached mappings for shader bo

GitLab Mirror gitlab-mirror at kemper.freedesktop.org
Thu Oct 4 08:34:49 UTC 2018


Module: Mesa
Branch: master
Commit: b2a876a42bd0d55ad6705f8aff773da16806a2e6
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b2a876a42bd0d55ad6705f8aff773da16806a2e6

Author: Guido Günther <agx at sigxcpu.org>
Date:   Mon Oct  1 18:37:28 2018 +0200

etnaviv: Use write combine instead of unached mappings for shader bo

The later are sensitive to unaligned accesses on arm64[1] and we don't
need an uncached mapping here.

[1]: https://lists.freedesktop.org/archives/etnaviv/2018-September/001956.html

Signed-off-by: Guido Günther <guido.gunther at puri.sm>
Signed-off-by: Lucas Stach <l.stach at pengutronix.de>

---

 src/gallium/drivers/etnaviv/etnaviv_shader.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/etnaviv/etnaviv_shader.c b/src/gallium/drivers/etnaviv/etnaviv_shader.c
index 04ababc801..27c735b83b 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_shader.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_shader.c
@@ -41,7 +41,7 @@ static bool etna_icache_upload_shader(struct etna_context *ctx, struct etna_shad
 {
    if (v->bo)
       return true;
-   v->bo = etna_bo_new(ctx->screen->dev, v->code_size*4, DRM_ETNA_GEM_CACHE_UNCACHED);
+   v->bo = etna_bo_new(ctx->screen->dev, v->code_size*4, DRM_ETNA_GEM_CACHE_WC);
    if (!v->bo)
       return false;
 




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