This patch series is aimed at providing UM with detailed memory profiling information in debug builds. It is achieved through a device-wide list of DRM GEM objects, and also implementing the ability to label BO's from UM through a new IOCTL.
The new debugfs file shows a list of driver DRM GEM objects in tabular mode. To visualise it, cat sudo cat /sys/kernel/debug/dri/*.gpu/gems. To test this functionality from UM, please refer to this Mesa patch series: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34224 Discussion of previous revision of this patch series can be found at: https://lore.kernel.org/dri-devel/20250408222427.1214330-1-adrian.laru...@collabora.com/T/#t Changelog: v6: - Replaced some mutex calls with scoped guards - Documented data size limits in the label ioctl - Simplified GEMS status flags treatment (Panthor doesn't use madvise) - Fixed some array size and string bugs - Improved the naming of GEM status and usage flags to reflect their meaning - Improved the formatting of the output table v5: - Kept case and naming of kernel BO's consistent - Increased the driver minor after new ioctl - Now adds BO to debugfs GEMs list at GEM object creation time - No longer try to hide BO creator's name when it's a workqueue or modprobe - Reworked the procedure for printing GEM state and kernel BO flags - Turned kernel BO flags and GEM state flags into bit enums - Wait until BO state is marked as initialied for debugfs display v4: - Labelled all kernel BO's, not just heap chunks. - Refactored DebugGFs GEMs list handling functions - Added debugfs GEMS node mask to tell different kinds of BO's Adrián Larumbe (4): drm/panthor: Introduce BO labeling drm/panthor: Add driver IOCTL for setting BO labels drm/panthor: Label all kernel BO's drm/panthor: show device-wide list of DRM GEM objects over DebugFS drivers/gpu/drm/panthor/panthor_device.c | 5 + drivers/gpu/drm/panthor/panthor_device.h | 11 ++ drivers/gpu/drm/panthor/panthor_drv.c | 68 ++++++- drivers/gpu/drm/panthor/panthor_fw.c | 8 +- drivers/gpu/drm/panthor/panthor_gem.c | 229 ++++++++++++++++++++++- drivers/gpu/drm/panthor/panthor_gem.h | 80 +++++++- drivers/gpu/drm/panthor/panthor_heap.c | 6 +- drivers/gpu/drm/panthor/panthor_sched.c | 9 +- include/uapi/drm/panthor_drm.h | 23 +++ 9 files changed, 428 insertions(+), 11 deletions(-) -- 2.48.1
