Not a bad start, but that needs quite some more work.
First of all please rebase on top of current drm-misc-next, a whole
bunch of the stuff you want to trace here was already removed or is
about to be removed.
Then concentrate on the necessary trace points, for example
ttm:ttm_bo_device_init/release are overkill.
On the other hand I'm missing important events like pool shrink, tt
swapout/swapin (ttm_bo_swapout can be dropped) and especially BO init.
I would separate the patches into one for each trace point. Not a must
have, but it could make it easier to review and we can discuss for each
one separately.
Thanks,
Christian.
Am 28.01.21 um 08:13 schrieb Kevin Wang:
the kernel ftrace can better help analyze the kernel running status.
add some trace events to support TTM.
add trace events list:
ttm:ttm_bo_add_mem_to_lru
ttm:ttm_bo_del_from_lru
ttm:ttm_bo_move_mem
ttm:ttm_bo_wait
ttm:ttm_bo_evict
ttm:ttm_bo_swapout
ttm:ttm_bo_device_init
ttm:ttm_bo_device_release
ttm:ttm_bo_init_reserved
ttm:ttm_bo_validate
ttm:ttm_bo_release
ttm:ttm_bo_mmap
ttm:ttm_bo_vm_fault
ttm:ttm_bo_vm_access
ttm:ttm_shrink
ttm:ttm_mem_global_reserve
ttm:ttm_mem_global_free
Kevin Wang (3):
drm/ttm: add ttm bo trace event support
drm/ttm: add ttm vm bo trace event support
drm/ttm: add ttm mem trace event support
drivers/gpu/drm/ttm/ttm_bo.c | 23 ++
drivers/gpu/drm/ttm/ttm_bo_vm.c | 12 +-
drivers/gpu/drm/ttm/ttm_memory.c | 7 +
drivers/gpu/drm/ttm/ttm_module.c | 3 +
drivers/gpu/drm/ttm/ttm_trace.h | 469 +++++++++++++++++++++++++++++++
5 files changed, 512 insertions(+), 2 deletions(-)
create mode 100644 drivers/gpu/drm/ttm/ttm_trace.h
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