panfrost: protect access to shared bo cache and transient pool

Both the BO cache and the transient pool are shared across
context's. Protect access to these with mutexes.

Signed-off-by: Rohan Garg <[email protected]>
Reviewed-by: Boris Brezillon <[email protected]>
Reviewed-by: Alyssa Rosenzweig <[email protected]>
Signed-off-by: Boris Brezillon <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/gallium/drivers/panfrost/pan_job.c b/src/gallium/drivers/panfrost/pan_job.c
index f5bbd04b913..f7ff57c4331 100644
--- a/src/gallium/drivers/panfrost/pan_job.c
+++ b/src/gallium/drivers/panfrost/pan_job.c
@@ -67,10 +67,12 @@ panfrost_free_job(struct panfrost_context *ctx, struct panfrost_job *job)
         /* Free up the transient BOs we're sitting on */
         struct panfrost_screen *screen = pan_screen(ctx->base.screen);
 
+        pthread_mutex_lock(&screen->transient_lock);
         util_dynarray_foreach(&job->transient_indices, unsigned, index) {
                 /* Mark it free */
                 BITSET_SET(screen->free_transient, *index);
         }
+        pthread_mutex_unlock(&screen->transient_lock);
 
         /* Unreference the polygon list */
         panfrost_bo_unreference(ctx->base.screen, job->polygon_list);