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authorChris Wilson <chris@chris-wilson.co.uk>2016-10-31 10:08:06 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-11-08 10:35:29 +0100
commit5705670d0463423337c82d00877989e7df8b169d (patch)
tree913c2aba5107628f8f90295f8e68ddca0cfbf385 /drivers/gpu/drm/Kconfig
parentdrm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs (diff)
downloadlinux-5705670d0463423337c82d00877989e7df8b169d.tar.xz
linux-5705670d0463423337c82d00877989e7df8b169d.zip
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 'drivers/gpu/drm/Kconfig')
-rw-r--r--drivers/gpu/drm/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 483059a22b1b..25e8e3793d29 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -33,6 +33,19 @@ config DRM_DP_AUX_CHARDEV
read and write values to arbitrary DPCD registers on the DP aux
channel.
+config DRM_DEBUG_MM
+ bool "Insert extra checks and debug info into the DRM range managers"
+ default n
+ depends on DRM
+ select STACKDEPOT
+ help
+ Enable allocation tracking of memory manager and leak detection on
+ shutdown.
+
+ Recommended for driver developers only.
+
+ If in doubt, say "N".
+
config DRM_KMS_HELPER
tristate
depends on DRM