summaryrefslogtreecommitdiff
path: root/include/drm
diff options
context:
space:
mode:
authorAlex Deucher <alexander.deucher@amd.com>2024-02-13 00:04:24 +0300
committerChristian König <christian.koenig@amd.com>2024-02-16 14:52:50 +0300
commitb31f5eba32ae8cc28e7cfa5a55ec8670d8c718e2 (patch)
treef642b793e42727b0bb54fae444c6cb03ebd3fba0 /include/drm
parent77d17c4cd0bf52eacfad88e63e8932eb45d643c5 (diff)
downloadlinux-b31f5eba32ae8cc28e7cfa5a55ec8670d8c718e2.tar.xz
drm: add drm_gem_object_is_shared_for_memory_stats() helper
Add a helper so that drm drivers can consistently report shared status via the fdinfo shared memory stats interface. In addition to handle count, show buffers as shared if they are shared via dma-buf as well (e.g., shared with v4l or some other subsystem). v2: switch to inline function Link: https://lore.kernel.org/all/20231207180225.439482-1-alexander.deucher@amd.com/ Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> (v1) Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.keonig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_gem.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 369505447acd..2ebec3984cd4 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -553,6 +553,19 @@ unsigned long drm_gem_lru_scan(struct drm_gem_lru *lru,
int drm_gem_evict(struct drm_gem_object *obj);
+/**
+ * drm_gem_object_is_shared_for_memory_stats - helper for shared memory stats
+ *
+ * This helper should only be used for fdinfo shared memory stats to determine
+ * if a GEM object is shared.
+ *
+ * @obj: obj in question
+ */
+static inline bool drm_gem_object_is_shared_for_memory_stats(struct drm_gem_object *obj)
+{
+ return (obj->handle_count > 1) || obj->dma_buf;
+}
+
#ifdef CONFIG_LOCKDEP
/**
* drm_gem_gpuva_set_lock() - Set the lock protecting accesses to the gpuva list.