drm/etnaviv: replace hangcheck with scheduler timeout

Browse source

This replaces the etnaviv internal hangcheck logic with the job timeout
handling provided by the DRM scheduler. This simplifies the driver further
and allows to replay jobs after a GPU reset, so only minimal state is lost.

This introduces a user-visible change in that we don't allow jobs to run
indefinitely as long as they make progress anymore, as this introduces
quality of service issues when multiple processes are using the GPU.
Userspace is now responsible to flush jobs in a way that the finish in a
reasonable time, where reasonable is currently defined as less than 500ms.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

...

This commit is contained in:

Lucas Stach 2017-12-06 10:53:27 +01:00

parent e0580254ae

commit 6d7a20c077

5 changed files with 51 additions and 114 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

21

drivers/gpu/drm/etnaviv/etnaviv_dump.c

View file

1

drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c

View file

89

drivers/gpu/drm/etnaviv/etnaviv_gpu.c

View file

11

drivers/gpu/drm/etnaviv/etnaviv_gpu.h

View file

43

drivers/gpu/drm/etnaviv/etnaviv_sched.c

View file