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| author | Raag Jadav <raag.jadav@intel.com> | 2025-10-30 15:23:55 +0300 |
|---|---|---|
| committer | Ashutosh Dixit <ashutosh.dixit@intel.com> | 2025-11-27 20:05:20 +0300 |
| commit | 726ceb5716da7657a65e01270c494ecd4cb0b242 (patch) | |
| tree | 37b18f8409cc6ca0b6292d1ec13d822ec7bafdae /drivers/gpu | |
| parent | 99234edab8e1fd3fd2309193a3b3169970a7e770 (diff) | |
| download | linux-726ceb5716da7657a65e01270c494ecd4cb0b242.tar.xz | |
drm/xe/guc_submit: Introduce pause/unpause() helpers for PF
Introduce pause/unpause() helpers which stop/start further runs of
submission tasks on given GuC and can be called from PF context. This
is in preparation of usecases where we simply need to stop/start the
scheduler without losing GuC state and don't require dealing with VF
migration.
v7: Reword commit message (Matthew Brost)
Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patch.msgid.link/20251030122357.128825-3-raag.jadav@intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_guc_submit.c | 30 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_guc_submit.h | 2 |
2 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_guc_submit.c b/drivers/gpu/drm/xe/xe_guc_submit.c index cc7559cab9b3..3ca2558c8c96 100644 --- a/drivers/gpu/drm/xe/xe_guc_submit.c +++ b/drivers/gpu/drm/xe/xe_guc_submit.c @@ -2169,6 +2169,21 @@ static void guc_exec_queue_pause(struct xe_guc *guc, struct xe_exec_queue *q) } /** + * xe_guc_submit_pause - Stop further runs of submission tasks on given GuC. + * @guc: the &xe_guc struct instance whose scheduler is to be disabled + */ +void xe_guc_submit_pause(struct xe_guc *guc) +{ + struct xe_exec_queue *q; + unsigned long index; + + mutex_lock(&guc->submission_state.lock); + xa_for_each(&guc->submission_state.exec_queue_lookup, index, q) + xe_sched_submission_stop(&q->guc->sched); + mutex_unlock(&guc->submission_state.lock); +} + +/** * xe_guc_submit_pause_vf - Stop further runs of submission tasks for VF. * @guc: the &xe_guc struct instance whose scheduler is to be disabled */ @@ -2344,6 +2359,21 @@ static void guc_exec_queue_unpause(struct xe_guc *guc, struct xe_exec_queue *q) } /** + * xe_guc_submit_unpause - Allow further runs of submission tasks on given GuC. + * @guc: the &xe_guc struct instance whose scheduler is to be enabled + */ +void xe_guc_submit_unpause(struct xe_guc *guc) +{ + struct xe_exec_queue *q; + unsigned long index; + + mutex_lock(&guc->submission_state.lock); + xa_for_each(&guc->submission_state.exec_queue_lookup, index, q) + xe_sched_submission_start(&q->guc->sched); + mutex_unlock(&guc->submission_state.lock); +} + +/** * xe_guc_submit_unpause_vf - Allow further runs of submission tasks for VF. * @guc: the &xe_guc struct instance whose scheduler is to be enabled */ diff --git a/drivers/gpu/drm/xe/xe_guc_submit.h b/drivers/gpu/drm/xe/xe_guc_submit.h index 0e7996836131..100a7891b918 100644 --- a/drivers/gpu/drm/xe/xe_guc_submit.h +++ b/drivers/gpu/drm/xe/xe_guc_submit.h @@ -20,8 +20,10 @@ int xe_guc_submit_reset_prepare(struct xe_guc *guc); void xe_guc_submit_reset_wait(struct xe_guc *guc); void xe_guc_submit_stop(struct xe_guc *guc); int xe_guc_submit_start(struct xe_guc *guc); +void xe_guc_submit_pause(struct xe_guc *guc); void xe_guc_submit_pause_abort(struct xe_guc *guc); void xe_guc_submit_pause_vf(struct xe_guc *guc); +void xe_guc_submit_unpause(struct xe_guc *guc); void xe_guc_submit_unpause_vf(struct xe_guc *guc); void xe_guc_submit_unpause_prepare_vf(struct xe_guc *guc); void xe_guc_submit_wedge(struct xe_guc *guc); |