Module: Mesa
Branch: staging/23.3
Commit: 605f8b70d4e6042da5de3fd44eb1fdcaf0cccbda
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=605f8b70d4e6042da5de3fd44eb1fdcaf0cccbda

Author: Boris Brezillon <[email protected]>
Date:   Thu Nov 30 11:15:10 2023 +0100

panfrost: Don't leak NIR compute shaders

We never steal the NIR program or free it explicitly, and the state
tracker expects drivers to take ownership of the program object. Since
panfrost doesn't need to keep the original NIR shader around for
compute, let's just free it before returning.

Fixes: 40372bd720fe ("panfrost: Implement a disk cache")
Cc: stable
Signed-off-by: Boris Brezillon <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26424>
(cherry picked from commit 692a4b18047a9549ec993c6bded598c5f0c06de0)

---

 .pick_status.json                         | 2 +-
 src/gallium/drivers/panfrost/pan_shader.c | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/.pick_status.json b/.pick_status.json
index 6de64019f98..bd033e943ac 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -3394,7 +3394,7 @@
         "description": "panfrost: Don't leak NIR compute shaders",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": "40372bd720fe16186e9abc832bb452a3143d0e00",
         "notes": null
diff --git a/src/gallium/drivers/panfrost/pan_shader.c 
b/src/gallium/drivers/panfrost/pan_shader.c
index 42bb2f72768..546910f8e66 100644
--- a/src/gallium/drivers/panfrost/pan_shader.c
+++ b/src/gallium/drivers/panfrost/pan_shader.c
@@ -470,6 +470,7 @@ panfrost_create_compute_state(struct pipe_context *pctx,
    /* The NIR becomes invalid after this. For compute kernels, we never
     * need to access it again. Don't keep a dangling pointer around.
     */
+   ralloc_free((void *)so->nir);
    so->nir = NULL;
 
    return so;

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