[Mesa-dev] [PATCH 4/4] winsys/amdgpu: clear the buffer cache on mmap failure and try again

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

---
 src/gallium/winsys/amdgpu/drm/amdgpu_bo.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c b/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
index 674482e..adea376 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
@@ -229,6 +229,11 @@ static void *amdgpu_bo_map(struct pb_buffer *buf,
        return bo->user_ptr;
 
    r = amdgpu_bo_cpu_map(bo->bo, &cpu);
+   if (r) {
+      /* Clear the cache and try again. */
+      pb_cache_release_all_buffers(&bo->ws->bo_cache);
+      r = amdgpu_bo_cpu_map(bo->bo, &cpu);
+   }
    return r ? NULL : cpu;
 }
 
-- 
2.1.4