Mesa (staging/21.0): iris: Disable aux as needed in iris_flush_resource
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Thu Jan 28 18:46:55 UTC 2021
Module: Mesa
Branch: staging/21.0
Commit: 87d20549c869575b693b3fcc196f5611dcf459ee
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=87d20549c869575b693b3fcc196f5611dcf459ee
Author: Nanley Chery <nanley.g.chery at intel.com>
Date: Wed Jan 13 14:34:13 2021 -0800
iris: Disable aux as needed in iris_flush_resource
Disable compression in iris_flush_resource if the resource lacks a
modifier. When a caller wants to prepare such a resource for sharing
(via eglCreateImage for example), this change enables all reference
holders to access the resource in a common manner - without compression.
This fixes misrendering with 3D-accelerated qemu. A piglit test which
reproduces qemu's behavior, ext_image_dma_buf_import-export-tex, is also
enabled to pass.
Cc: mesa-stable
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/2678
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8663>
(cherry picked from commit 40d6b92de9432137db4799d482afe7ae5ad52ae8)
---
.pick_status.json | 2 +-
src/gallium/drivers/iris/iris_resource.c | 14 ++++++++++++++
2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/.pick_status.json b/.pick_status.json
index 24306db0922..11ccc318a1b 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -346,7 +346,7 @@
"description": "iris: Disable aux as needed in iris_flush_resource",
"nominated": true,
"nomination_type": 0,
- "resolution": 0,
+ "resolution": 1,
"master_sha": null,
"because_sha": null
},
diff --git a/src/gallium/drivers/iris/iris_resource.c b/src/gallium/drivers/iris/iris_resource.c
index 7d1c3ba1180..8ce3c8a2472 100644
--- a/src/gallium/drivers/iris/iris_resource.c
+++ b/src/gallium/drivers/iris/iris_resource.c
@@ -1165,6 +1165,20 @@ iris_flush_resource(struct pipe_context *ctx, struct pipe_resource *resource)
0, INTEL_REMAINING_LAYERS,
mod ? mod->aux_usage : ISL_AUX_USAGE_NONE,
mod ? mod->supports_clear_color : false);
+
+ if (!res->mod_info && res->aux.usage != ISL_AUX_USAGE_NONE) {
+ /* flush_resource may be used to prepare an image for sharing external
+ * to the driver (e.g. via eglCreateImage). To account for this, make
+ * sure to get rid of any compression that a consumer wouldn't know how
+ * to handle.
+ */
+ for (int i = 0; i < IRIS_BATCH_COUNT; i++) {
+ if (iris_batch_references(&ice->batches[i], res->bo))
+ iris_batch_flush(&ice->batches[i]);
+ }
+
+ iris_resource_disable_aux(res);
+ }
}
static void
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