This series adds devcoredump support to panthor. This is written from scratch and is not based on the prior work[1]. The main differences are
- coredump triggers on all faulty/fatal/timeout events - state capture and state process are two separated steps, with GFP_NOWAIT being used for state capture - state capture captures both sw states and hw regs that are potentially interesting - coredump data is in text format, similar to what msm and xe do A sample devcoredump can be found at https://gitlab.freedesktop.org/panfrost/linux/-/issues/44 [1] https://lore.kernel.org/lkml/20240821143826.3720-1-daniel.alme...@collabora.com/ Chia-I Wu (9): drm/panthor: add devcoredump support drm/panthor: capture GPU state for devcoredump drm/panthor: capture GLB state for devcoredump drm/panthor: capture CSG state for devcoredump drm/panthor: capture CS state for devcoredump drm/panthor: capture AS state for devcoredump drm/panthor: capture VMA state for devcoredump drm/panthor: check bo offset alignment in vm bind drm/panthor: add DRM_PANTHOR_VM_BIND_OP_MAP_DUMPABLE drivers/gpu/drm/panthor/Makefile | 2 + drivers/gpu/drm/panthor/panthor_coredump.c | 617 +++++++++++++++++++++ drivers/gpu/drm/panthor/panthor_coredump.h | 178 ++++++ drivers/gpu/drm/panthor/panthor_device.h | 6 + drivers/gpu/drm/panthor/panthor_drv.c | 3 +- drivers/gpu/drm/panthor/panthor_mmu.c | 54 +- drivers/gpu/drm/panthor/panthor_mmu.h | 4 + drivers/gpu/drm/panthor/panthor_regs.h | 6 + drivers/gpu/drm/panthor/panthor_sched.c | 104 ++++ drivers/gpu/drm/panthor/panthor_sched.h | 14 + include/uapi/drm/panthor_drm.h | 7 + 11 files changed, 989 insertions(+), 6 deletions(-) create mode 100644 drivers/gpu/drm/panthor/panthor_coredump.c create mode 100644 drivers/gpu/drm/panthor/panthor_coredump.h -- 2.50.0.727.gbf7dc18ff4-goog
