linux-stable.git/include/drm/gpu_scheduler.h, branch v5.0

drm/scheduler: Add drm_sched_suspend/resume_timeout()

2018-12-05T22:56:16+00:00

This patch adds two new functions to help client drivers suspend and
resume the scheduler job timeout. This can be useful in cases where the
hardware has preemption support enabled. Using this, it is possible to have
the timeout active only for the ring which is active on the ringbuffer.
This patch also makes the job_list_lock IRQ safe.

Suggested-by: Christian Koenig 
Signed-off-by: Sharat Masetty 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/scheduler: Add drm_sched_job_cleanup

2018-11-05T19:21:27+00:00

This patch adds a new API to clean up the scheduler job resources. This
is primarliy needed in cases the job was created but was not queued to
the scheduler queue. Additionally with this change, the layer which
creates the scheduler job also gets to free up the job's resources and
this entails moving the dma_fence_put(finished_fence) to the drivers
ops free handler routines.

Signed-off-by: Sharat Masetty 
Reviewed-by: Christian König 
Acked-by: Andrey Grodzovsky 
Signed-off-by: Alex Deucher

drm/sched: Add boolean to mark if sched is ready to work v5

2018-11-05T19:21:22+00:00

Problem:
A particular scheduler may become unsuable (underlying HW) after
some event (e.g. GPU reset). If it's later chosen by
the get free sched. policy a command will fail to be
submitted.

Fix:
Add a driver specific callback to report the sched status so
rq with bad sched can be avoided in favor of working one or
none in which case job init will fail.

v2: Switch from driver callback to flag in scheduler.

v3: rebase

v4: Remove ready paramter from drm_sched_init, set
uncoditionally to true once init done.

v5: fix missed change in v3d in v4 (Alex)

Signed-off-by: Andrey Grodzovsky 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/sched: add drm_sched_fault

2018-11-05T19:21:02+00:00

Add a helper to immediately start timeout handling in case of a hardware
fault.

Signed-off-by: Christian König 
Reviewed-by: Andrey Grodzovsky 
Signed-off-by: Alex Deucher

drm/scheduler: remove timeout work_struct from drm_sched_job (v3)

2018-09-27T14:55:45+00:00

having a delayed work item per job is redundant as we only need one
per scheduler to track the time out the currently executing job.

v2: the first element of the ring mirror list is the currently
executing job so we don't need a additional variable for it

v3: squash in fixes for v3d and etnaviv

Signed-off-by: Nayan Deshmukh 
Suggested-by: Christian König 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/scheduler: Add stopped flag to drm_sched_entity

2018-08-27T16:11:10+00:00

The flag will prevent another thread from same process to
reinsert the entity queue into scheduler's rq after it was already
removewd from there by another thread during drm_sched_entity_flush.

Signed-off-by: Andrey Grodzovsky 
Reviewed-by: Chunming Zhou 
Signed-off-by: Alex Deucher

drm/scheduler: move entity handling into separate file

2018-08-27T16:10:43+00:00

This is complex enough on it's own. Move it into a separate C file.

Signed-off-by: Christian König 
Reviewed-by: Huang Rui 
Signed-off-by: Alex Deucher

drm/scheduler: fix setting the priorty for entities (v2)

2018-08-27T16:10:00+00:00

Since we now deal with multiple rq we need to update all of them, not
just the current one.

v2: Trivial: Removed unused variable (Alex)

Signed-off-by: Christian König 
Acked-by: Nayan Deshmukh 
Signed-off-by: Alex Deucher

drm/scheduler: add counter for total jobs in scheduler

2018-08-27T16:09:45+00:00

To keep track of the scheduler load.

Signed-off-by: Nayan Deshmukh 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/scheduler: add a list of run queues to the entity

2018-08-27T16:09:44+00:00

These are the potential run queues on which the jobs from this
entity can be scheduled. We will use this to do load balancing.

Signed-off-by: Nayan Deshmukh 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher