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iris: Allocate ZEROED BOs for shared resources

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A port of cbee2d1102 ("i965/screen: Allocate ZEROED BOs for images").

Cc: mesa-stable
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22487>
(cherry picked from commit 5e5faa1194)
This commit is contained in:
Nanley Chery 2023-04-10 12:39:42 -07:00 • committed by Eric Engestrom
parent 599749570c
commit 612e6e6038
2 changed files with 9 additions and 2 deletions
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2
.pick_status.json
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@ -508,7 +508,7 @@
"description": "iris: Allocate ZEROED BOs for shared resources",
"nominated": true,
"nomination_type": 0,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": null
},

9
src/gallium/drivers/iris/iris_resource.c
View file

@ -487,9 +487,16 @@ iris_resource_alloc_flags(const struct iris_screen *screen,
if (templ->bind & PIPE_BIND_PROTECTED)
flags |= BO_ALLOC_PROTECTED;
if (templ->bind & PIPE_BIND_SHARED)
if (templ->bind & PIPE_BIND_SHARED) {
flags |= BO_ALLOC_SHARED;
/* We request that the bufmgr zero because, if a buffer gets re-used
* from the pool, we don't want to leak random garbage from our process
* to some other.
*/
flags |= BO_ALLOC_ZEROED;
}
return flags;
}