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Diffstat (limited to 'drivers/gpu/drm/Kconfig')
| -rw-r--r-- | drivers/gpu/drm/Kconfig | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index dba57ca0c9d9..617d9c3a86c3 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -93,6 +93,20 @@ config DRM_KMS_FB_HELPER help FBDEV helpers for KMS drivers. +config DRM_DEBUG_DP_MST_TOPOLOGY_REFS + bool "Enable refcount backtrace history in the DP MST helpers" + select STACKDEPOT + depends on DRM_KMS_HELPER + depends on DEBUG_KERNEL + depends on EXPERT + help + Enables debug tracing for topology refs in DRM's DP MST helpers. A + history of each topology reference/dereference will be printed to the + kernel log once a port or branch device's topology refcount reaches 0. + + This has the potential to use a lot of memory and print some very + large kernel messages. If in doubt, say "N". + config DRM_FBDEV_EMULATION bool "Enable legacy fbdev support for your modesetting driver" depends on DRM |