diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-31 12:08:06 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-11-08 12:35:29 +0300 |
| commit | 5705670d0463423337c82d00877989e7df8b169d (patch) | |
| tree | 913c2aba5107628f8f90295f8e68ddca0cfbf385 /include/drm/drm_mm.h | |
| parent | 55edf41b699bcb31dcf45082d99e91b7e217206e (diff) | |
| download | linux-5705670d0463423337c82d00877989e7df8b169d.tar.xz | |
drm: Track drm_mm allocators and show leaks on shutdown
We can use the kernel's stack tracer and depot to record the allocation
site of every drm_mm user. Then on shutdown, as well as warning that
allocated nodes still reside with the drm_mm range manager, we can
display who allocated them to aide tracking down the leak.
v2: Move Kconfig around so it lies underneath the DRM options submenu.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161031090806.20073-1-chris@chris-wilson.co.uk
Diffstat (limited to 'include/drm/drm_mm.h')
| -rw-r--r-- | include/drm/drm_mm.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h index 205ddcf6d55d..41ddafe92b2f 100644 --- a/include/drm/drm_mm.h +++ b/include/drm/drm_mm.h @@ -44,6 +44,9 @@ #ifdef CONFIG_DEBUG_FS #include <linux/seq_file.h> #endif +#ifdef CONFIG_DRM_DEBUG_MM +#include <linux/stackdepot.h> +#endif enum drm_mm_search_flags { DRM_MM_SEARCH_DEFAULT = 0, @@ -74,6 +77,9 @@ struct drm_mm_node { u64 size; u64 __subtree_last; struct drm_mm *mm; +#ifdef CONFIG_DRM_DEBUG_MM + depot_stack_handle_t stack; +#endif }; struct drm_mm { |