[PATCH 0/9] drm/panthor: add devcoredump support
Chia-I Wu
olvaffe at gmail.com
Sun Jul 20 00:01:37 UTC 2025
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.almeida@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
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