Move the scheduling tasklists out of the execlists backend into the per-engine scheduling bookkeeping. Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> --- drivers/gpu/drm/i915/gt/intel_engine.h | 33 +++----- drivers/gpu/drm/i915/gt/intel_engine_cs.c | 33 ++------ .../gpu/drm/i915/gt/intel_engine_heartbeat.c | 2 +- drivers/gpu/drm/i915/gt/intel_engine_pm.c | 2 +- drivers/gpu/drm/i915/gt/intel_engine_types.h | 5 -- .../drm/i915/gt/intel_execlists_submission.c | 84 +++++++------------ drivers/gpu/drm/i915/gt/intel_gt_requests.c | 2 +- drivers/gpu/drm/i915/gt/selftest_engine_pm.c | 2 +- drivers/gpu/drm/i915/gt/selftest_execlists.c | 49 +++++------ drivers/gpu/drm/i915/gt/selftest_hangcheck.c | 3 +- drivers/gpu/drm/i915/gt/selftest_lrc.c | 13 +-- drivers/gpu/drm/i915/gt/selftest_reset.c | 3 +- .../gpu/drm/i915/gt/uc/intel_guc_submission.c | 25 ++---- drivers/gpu/drm/i915/i915_request.c | 2 +- drivers/gpu/drm/i915/i915_scheduler.c | 45 +++++++++- drivers/gpu/drm/i915/i915_scheduler.h | 46 ++++++++++ drivers/gpu/drm/i915/i915_scheduler_types.h | 9 ++ drivers/gpu/drm/i915/selftests/i915_request.c | 10 +-- .../gpu/drm/i915/selftests/i915_scheduler.c | 24 +++--- drivers/gpu/drm/i915/selftests/igt_spinner.c | 2 +- 20 files changed, 213 insertions(+), 181 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h index cc2df80eb449..52bba16c62e8 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine.h +++ b/drivers/gpu/drm/i915/gt/intel_engine.h @@ -12,6 +12,7 @@ #include "i915_pmu.h" #include "i915_reg.h" #include "i915_request.h" +#include "i915_scheduler.h" #include "i915_selftest.h" #include "intel_engine_types.h" #include "intel_gt_types.h" @@ -123,20 +124,6 @@ execlists_active(const struct intel_engine_execlists *execlists) return active; } -static inline void -execlists_active_lock_bh(struct intel_engine_execlists *execlists) -{ - local_bh_disable(); /* prevent local softirq and lock recursion */ - tasklet_lock(&execlists->tasklet); -} - -static inline void -execlists_active_unlock_bh(struct intel_engine_execlists *execlists) -{ - tasklet_unlock(&execlists->tasklet); - local_bh_enable(); /* restore softirq, and kick ksoftirqd! */ -} - static inline u32 intel_read_status_page(const struct intel_engine_cs *engine, int reg) { @@ -231,12 +218,6 @@ static inline void __intel_engine_reset(struct intel_engine_cs *engine, bool intel_engines_are_idle(struct intel_gt *gt); bool intel_engine_is_idle(struct intel_engine_cs *engine); -void __intel_engine_flush_submission(struct intel_engine_cs *engine, bool sync); -static inline void intel_engine_flush_submission(struct intel_engine_cs *engine) -{ - __intel_engine_flush_submission(engine, true); -} - void intel_engines_reset_default_submission(struct intel_gt *gt); bool intel_engine_can_store_dword(struct intel_engine_cs *engine); @@ -283,4 +264,16 @@ intel_engine_has_heartbeat(const struct intel_engine_cs *engine) return READ_ONCE(engine->props.heartbeat_interval_ms); } +static inline void +intel_engine_kick_scheduler(struct intel_engine_cs *engine) +{ + i915_sched_kick(intel_engine_get_scheduler(engine)); +} + +static inline void +intel_engine_flush_scheduler(struct intel_engine_cs *engine) +{ + i915_sched_flush(intel_engine_get_scheduler(engine)); +} + #endif /* _INTEL_RINGBUFFER_H_ */ diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index 2ce65189d5e2..3b299339fb62 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -918,7 +918,6 @@ int intel_engines_init(struct intel_gt *gt) void intel_engine_cleanup_common(struct intel_engine_cs *engine) { i915_sched_fini(intel_engine_get_scheduler(engine)); - tasklet_kill(&engine->execlists.tasklet); /* flush the callback */ intel_breadcrumbs_free(engine->breadcrumbs); @@ -1201,27 +1200,6 @@ static bool ring_is_idle(struct intel_engine_cs *engine) return idle; } -void __intel_engine_flush_submission(struct intel_engine_cs *engine, bool sync) -{ - struct tasklet_struct *t = &engine->execlists.tasklet; - - if (!t->callback) - return; - - local_bh_disable(); - if (tasklet_trylock(t)) { - /* Must wait for any GPU reset in progress. */ - if (__tasklet_is_enabled(t)) - t->callback(t); - tasklet_unlock(t); - } - local_bh_enable(); - - /* Synchronise and wait for the tasklet on another CPU */ - if (sync) - tasklet_unlock_wait(t); -} - /** * intel_engine_is_idle() - Report if the engine has finished process all work * @engine: the intel_engine_cs @@ -1242,7 +1220,7 @@ bool intel_engine_is_idle(struct intel_engine_cs *engine) /* Waiting to drain ELSP? */ synchronize_hardirq(to_pci_dev(engine->i915->drm.dev)->irq); - intel_engine_flush_submission(engine); + i915_sched_flush(se); /* ELSP is empty, but there are ready requests? E.g. after reset */ if (!i915_sched_is_idle(se)) @@ -1457,6 +1435,7 @@ static void intel_engine_print_registers(struct intel_engine_cs *engine, if (intel_engine_uses_guc(engine)) { /* nothing to print yet */ } else if (HAS_EXECLISTS(dev_priv)) { + struct i915_sched *se = intel_engine_get_scheduler(engine); struct i915_request * const *port, *rq; const u32 *hws = &engine->status_page.addr[I915_HWS_CSB_BUF0_INDEX]; @@ -1466,8 +1445,8 @@ static void intel_engine_print_registers(struct intel_engine_cs *engine, drm_printf(m, "\tExeclist tasklet queued? %s (%s), preempt? %s, timeslice? %s\n", yesno(test_bit(TASKLET_STATE_SCHED, - &engine->execlists.tasklet.state)), - enableddisabled(!atomic_read(&engine->execlists.tasklet.count)), + &se->tasklet.state)), + enableddisabled(!atomic_read(&se->tasklet.count)), repr_timer(&engine->execlists.preempt), repr_timer(&engine->execlists.timer)); @@ -1491,7 +1470,7 @@ static void intel_engine_print_registers(struct intel_engine_cs *engine, idx, hws[idx * 2], hws[idx * 2 + 1]); } - execlists_active_lock_bh(execlists); + i915_sched_lock_bh(se); rcu_read_lock(); for (port = execlists->active; (rq = *port); port++) { char hdr[160]; @@ -1522,7 +1501,7 @@ static void intel_engine_print_registers(struct intel_engine_cs *engine, i915_request_show(m, rq, hdr, 0); } rcu_read_unlock(); - execlists_active_unlock_bh(execlists); + i915_sched_unlock_bh(se); } else if (INTEL_GEN(dev_priv) > 6) { drm_printf(m, "\tPP_DIR_BASE: 0x%08x\n", ENGINE_READ(engine, RING_PP_DIR_BASE)); diff --git a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c index 93741a65924a..b6dbd1150ba9 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c @@ -88,7 +88,7 @@ static void heartbeat(struct work_struct *wrk) unsigned long serial; /* Just in case everything has gone horribly wrong, give it a kick */ - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); rq = engine->heartbeat.systole; if (rq && i915_request_completed(rq)) { diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.c b/drivers/gpu/drm/i915/gt/intel_engine_pm.c index 3510c9236334..27d9d17b35cb 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.c @@ -53,7 +53,7 @@ static int __engine_unpark(struct intel_wakeref *wf) /* Flush all pending HW writes before we touch the context */ while (unlikely(intel_context_inflight(ce))) - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); /* First poison the image to verify we never fully trust it */ dbg_poison_ce(ce); diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h index 9ea38b01121a..d5f917462f0e 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_types.h +++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h @@ -138,11 +138,6 @@ struct st_preempt_hang { * driver and the hardware state for execlist mode of submission. */ struct intel_engine_execlists { - /** - * @tasklet: softirq tasklet for bottom handler - */ - struct tasklet_struct tasklet; - /** * @timer: kick the current context if its timeslice expires */ diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c index 12e20a8eb5d5..f8dca5f2f9b2 100644 --- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c @@ -515,7 +515,7 @@ static void kick_siblings(struct i915_request *rq, struct intel_context *ce) resubmit_virtual_request(rq, ve); if (READ_ONCE(ve->request)) - tasklet_hi_schedule(&ve->base.execlists.tasklet); + intel_engine_kick_scheduler(&ve->base); } static void __execlists_schedule_out(struct i915_request * const rq, @@ -681,12 +681,6 @@ trace_ports(const struct intel_engine_execlists *execlists, dump_port(p1, sizeof(p1), ", ", ports[1])); } -static bool -reset_in_progress(const struct intel_engine_execlists *execlists) -{ - return unlikely(!__tasklet_is_enabled(&execlists->tasklet)); -} - static __maybe_unused noinline bool assert_pending_valid(const struct intel_engine_execlists *execlists, const char *msg) @@ -701,7 +695,7 @@ assert_pending_valid(const struct intel_engine_execlists *execlists, trace_ports(execlists, msg, execlists->pending); /* We may be messing around with the lists during reset, lalala */ - if (reset_in_progress(execlists)) + if (__i915_sched_tasklet_is_disabled(intel_engine_get_scheduler(engine))) return true; if (!execlists->pending[0]) { @@ -1088,7 +1082,7 @@ static void start_timeslice(struct intel_engine_cs *engine) * its timeslice, so recheck. */ if (!timer_pending(&el->timer)) - tasklet_hi_schedule(&el->tasklet); + intel_engine_kick_scheduler(engine); return; } @@ -1664,14 +1658,6 @@ process_csb(struct intel_engine_cs *engine, struct i915_request **inactive) struct i915_request **prev; u8 head, tail; - /* - * As we modify our execlists state tracking we require exclusive - * access. Either we are inside the tasklet, or the tasklet is disabled - * and we assume that is only inside the reset paths and so serialised. - */ - GEM_BUG_ON(!tasklet_is_locked(&execlists->tasklet) && - !reset_in_progress(execlists)); - /* * Note that csb_write, csb_status may be either in HWSP or mmio. * When reading from the csb_write mmio register, we have to be @@ -2067,6 +2053,7 @@ static void execlists_capture(struct intel_engine_cs *engine) static noinline void execlists_reset(struct intel_engine_cs *engine) { + struct i915_sched *se = intel_engine_get_scheduler(engine); const unsigned int bit = I915_RESET_ENGINE + engine->id; unsigned long *lock = &engine->gt->reset.flags; unsigned long eir = fetch_and_zero(&engine->execlists.error_interrupt); @@ -2090,13 +2077,13 @@ static noinline void execlists_reset(struct intel_engine_cs *engine) ENGINE_TRACE(engine, "reset for %s\n", msg); /* Mark this tasklet as disabled to avoid waiting for it to complete */ - tasklet_disable_nosync(&engine->execlists.tasklet); + tasklet_disable_nosync(&se->tasklet); ring_set_paused(engine, 1); /* Freeze the current request in place */ execlists_capture(engine); intel_engine_reset(engine, msg); - tasklet_enable(&engine->execlists.tasklet); + tasklet_enable(&se->tasklet); clear_and_wake_up_bit(bit, lock); } @@ -2120,10 +2107,16 @@ static bool preempt_timeout(const struct intel_engine_cs *const engine) static void execlists_submission_tasklet(struct tasklet_struct *t) { struct intel_engine_cs * const engine = - from_tasklet(engine, t, execlists.tasklet); + from_tasklet(engine, t, sched.tasklet); struct i915_request *post[2 * EXECLIST_MAX_PORTS]; struct i915_request **inactive; + /* + * As we modify our execlists state tracking we require exclusive + * access. Either we are inside the tasklet, or the tasklet is disabled + * and we assume that is only inside the reset paths and so serialised. + */ + rcu_read_lock(); inactive = process_csb(engine, post); GEM_BUG_ON(inactive - post > ARRAY_SIZE(post)); @@ -2181,13 +2174,15 @@ static void execlists_irq_handler(struct intel_engine_cs *engine, u16 iir) intel_engine_signal_breadcrumbs(engine); if (tasklet) - tasklet_hi_schedule(&engine->execlists.tasklet); + intel_engine_kick_scheduler(engine); } static void __execlists_kick(struct intel_engine_execlists *execlists) { - /* Kick the tasklet for some interrupt coalescing and reset handling */ - tasklet_hi_schedule(&execlists->tasklet); + struct intel_engine_cs *engine = + container_of(execlists, typeof(*engine), execlists); + + intel_engine_kick_scheduler(engine); } #define execlists_kick(t, member) \ @@ -2490,11 +2485,6 @@ static int execlists_resume(struct intel_engine_cs *engine) static void execlists_reset_prepare(struct intel_engine_cs *engine) { - struct intel_engine_execlists * const execlists = &engine->execlists; - - ENGINE_TRACE(engine, "depth<-%d\n", - atomic_read(&execlists->tasklet.count)); - /* * Prevent request submission to the hardware until we have * completed the reset in i915_gem_reset_finish(). If a request @@ -2504,8 +2494,7 @@ static void execlists_reset_prepare(struct intel_engine_cs *engine) * Turning off the execlists->tasklet until the reset is over * prevents the race. */ - __tasklet_disable_sync_once(&execlists->tasklet); - GEM_BUG_ON(!reset_in_progress(execlists)); + i915_sched_disable_tasklet(intel_engine_get_scheduler(engine)); /* * We stop engines, otherwise we might get failed reset and a @@ -2657,7 +2646,7 @@ static void execlists_reset_rewind(struct intel_engine_cs *engine, bool stalled) static void nop_submission_tasklet(struct tasklet_struct *t) { struct intel_engine_cs * const engine = - from_tasklet(engine, t, execlists.tasklet); + from_tasklet(engine, t, sched.tasklet); /* The driver is wedged; don't process any more events. */ WRITE_ONCE(engine->execlists.queue_priority_hint, INT_MIN); @@ -2720,8 +2709,8 @@ static void execlists_reset_cancel(struct intel_engine_cs *engine) execlists->queue_priority_hint = INT_MIN; se->queue = RB_ROOT_CACHED; - GEM_BUG_ON(__tasklet_is_enabled(&execlists->tasklet)); - execlists->tasklet.callback = nop_submission_tasklet; + GEM_BUG_ON(__tasklet_is_enabled(&se->tasklet)); + se->tasklet.callback = nop_submission_tasklet; spin_unlock_irqrestore(&se->lock, flags); rcu_read_unlock(); @@ -2731,8 +2720,6 @@ static void execlists_reset_cancel(struct intel_engine_cs *engine) static void execlists_reset_finish(struct intel_engine_cs *engine) { - struct intel_engine_execlists * const execlists = &engine->execlists; - /* * After a GPU reset, we may have requests to replay. Do so now while * we still have the forcewake to be sure that the GPU is not allowed @@ -2743,14 +2730,8 @@ static void execlists_reset_finish(struct intel_engine_cs *engine) * reset as the next level of recovery, and as a final resort we * will declare the device wedged. */ - GEM_BUG_ON(!reset_in_progress(execlists)); - /* And kick in case we missed a new request submission. */ - if (__tasklet_enable(&execlists->tasklet)) - __execlists_kick(execlists); - - ENGINE_TRACE(engine, "depth->%d\n", - atomic_read(&execlists->tasklet.count)); + i915_sched_enable_tasklet(intel_engine_get_scheduler(engine)); } static void gen8_logical_ring_enable_irq(struct intel_engine_cs *engine) @@ -2783,7 +2764,7 @@ static bool can_preempt(struct intel_engine_cs *engine) static void execlists_set_default_submission(struct intel_engine_cs *engine) { engine->submit_request = i915_request_enqueue; - engine->execlists.tasklet.callback = execlists_submission_tasklet; + engine->sched.tasklet.callback = execlists_submission_tasklet; } static void execlists_shutdown(struct intel_engine_cs *engine) @@ -2791,7 +2772,6 @@ static void execlists_shutdown(struct intel_engine_cs *engine) /* Synchronise with residual timers and any softirq they raise */ del_timer_sync(&engine->execlists.timer); del_timer_sync(&engine->execlists.preempt); - tasklet_kill(&engine->execlists.tasklet); } static void execlists_release(struct intel_engine_cs *engine) @@ -2908,7 +2888,7 @@ static void init_execlists(struct intel_engine_cs *engine) struct intel_uncore *uncore = engine->uncore; u32 base = engine->mmio_base; - tasklet_setup(&engine->execlists.tasklet, execlists_submission_tasklet); + tasklet_setup(&engine->sched.tasklet, execlists_submission_tasklet); timer_setup(&engine->execlists.timer, execlists_timeslice, 0); timer_setup(&engine->execlists.preempt, execlists_preempt, 0); @@ -2997,7 +2977,7 @@ static void rcu_virtual_context_destroy(struct work_struct *wrk) * rbtrees as in the case it is running in parallel, it may reinsert * the rb_node into a sibling. */ - tasklet_kill(&ve->base.execlists.tasklet); + i915_sched_kill_tasklet(se); /* Decouple ourselves from the siblings, no more access allowed. */ for (n = 0; n < ve->num_siblings; n++) { @@ -3015,7 +2995,7 @@ static void rcu_virtual_context_destroy(struct work_struct *wrk) spin_unlock_irq(&sibling->sched.lock); } - GEM_BUG_ON(__tasklet_is_scheduled(&ve->base.execlists.tasklet)); + GEM_BUG_ON(__tasklet_is_scheduled(&se->tasklet)); GEM_BUG_ON(!list_empty(virtual_queue(ve))); lrc_fini(&ve->context); @@ -3160,7 +3140,7 @@ static intel_engine_mask_t virtual_submission_mask(struct virtual_engine *ve) static void virtual_submission_tasklet(struct tasklet_struct *t) { struct virtual_engine * const ve = - from_tasklet(ve, t, base.execlists.tasklet); + from_tasklet(ve, t, base.sched.tasklet); const int prio = READ_ONCE(ve->base.execlists.queue_priority_hint); intel_engine_mask_t mask; unsigned int n; @@ -3231,7 +3211,7 @@ static void virtual_submission_tasklet(struct tasklet_struct *t) GEM_BUG_ON(RB_EMPTY_NODE(&node->rb)); node->prio = prio; if (first && prio > sibling->execlists.queue_priority_hint) - tasklet_hi_schedule(&sibling->execlists.tasklet); + i915_sched_kick(se); unlock_engine: spin_unlock_irq(&se->lock); @@ -3273,7 +3253,7 @@ static void virtual_submit_request(struct i915_request *rq) GEM_BUG_ON(!list_empty(virtual_queue(ve))); list_move_tail(&rq->sched.link, virtual_queue(ve)); - tasklet_hi_schedule(&ve->base.execlists.tasklet); + intel_engine_kick_scheduler(&ve->base); unlock: spin_unlock_irqrestore(&se->lock, flags); @@ -3370,7 +3350,7 @@ intel_execlists_create_virtual(struct intel_engine_cs **siblings, INIT_LIST_HEAD(virtual_queue(ve)); ve->base.execlists.queue_priority_hint = INT_MIN; - tasklet_setup(&ve->base.execlists.tasklet, virtual_submission_tasklet); + tasklet_setup(&ve->base.sched.tasklet, virtual_submission_tasklet); intel_context_init(&ve->context, &ve->base); @@ -3398,7 +3378,7 @@ intel_execlists_create_virtual(struct intel_engine_cs **siblings, * layering if we handle cloning of the requests and * submitting a copy into each backend. */ - if (sibling->execlists.tasklet.callback != + if (sibling->sched.tasklet.callback != execlists_submission_tasklet) { err = -ENODEV; goto err_put; diff --git a/drivers/gpu/drm/i915/gt/intel_gt_requests.c b/drivers/gpu/drm/i915/gt/intel_gt_requests.c index 14c7b18090f3..36ec97f79174 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_requests.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_requests.c @@ -43,7 +43,7 @@ static bool flush_submission(struct intel_gt *gt, long timeout) return false; for_each_engine(engine, gt, id) { - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); /* Flush the background retirement and idle barriers */ flush_work(&engine->retire_work); diff --git a/drivers/gpu/drm/i915/gt/selftest_engine_pm.c b/drivers/gpu/drm/i915/gt/selftest_engine_pm.c index 2c898622bdfb..e0b502209a78 100644 --- a/drivers/gpu/drm/i915/gt/selftest_engine_pm.c +++ b/drivers/gpu/drm/i915/gt/selftest_engine_pm.c @@ -103,7 +103,7 @@ static int __measure_timestamps(struct intel_context *ce, intel_ring_advance(rq, cs); i915_request_get(rq); i915_request_add(rq); - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); /* Wait for the request to start executing, that then waits for us */ while (READ_ONCE(sema[2]) == 0) diff --git a/drivers/gpu/drm/i915/gt/selftest_execlists.c b/drivers/gpu/drm/i915/gt/selftest_execlists.c index 5266532c16db..f625c29023ea 100644 --- a/drivers/gpu/drm/i915/gt/selftest_execlists.c +++ b/drivers/gpu/drm/i915/gt/selftest_execlists.c @@ -43,7 +43,7 @@ static int wait_for_submit(struct intel_engine_cs *engine, unsigned long timeout) { /* Ignore our own attempts to suppress excess tasklets */ - tasklet_hi_schedule(&engine->execlists.tasklet); + intel_engine_kick_scheduler(engine); timeout += jiffies; do { @@ -53,7 +53,7 @@ static int wait_for_submit(struct intel_engine_cs *engine, return 0; /* Wait until the HW has acknowleged the submission (or err) */ - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); if (!READ_ONCE(engine->execlists.pending[0]) && is_active(rq)) return 0; @@ -72,7 +72,7 @@ static int wait_for_reset(struct intel_engine_cs *engine, do { cond_resched(); - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); if (READ_ONCE(engine->execlists.pending[0])) continue; @@ -288,7 +288,7 @@ static int live_unlite_restore(struct intel_gt *gt, int prio) i915_request_put(rq[0]); err_ce: - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); igt_spinner_end(&spin); for (n = 0; n < ARRAY_SIZE(ce); n++) { if (IS_ERR_OR_NULL(ce[n])) @@ -409,10 +409,10 @@ static int live_unlite_ring(void *arg) } i915_request_add(tmp); - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); n++; } - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); pr_debug("%s: Filled ring with %d nop tails {size:%x, tail:%x, emit:%x, rq.tail:%x}\n", engine->name, n, ce[0]->ring->size, @@ -449,7 +449,7 @@ static int live_unlite_ring(void *arg) ce[1]->ring->tail, ce[1]->ring->emit); err_ce: - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); igt_spinner_end(&spin); for (n = 0; n < ARRAY_SIZE(ce); n++) { if (IS_ERR_OR_NULL(ce[n])) @@ -568,6 +568,7 @@ static int live_hold_reset(void *arg) return -ENOMEM; for_each_engine(engine, gt, id) { + struct i915_sched *se = intel_engine_get_scheduler(engine); struct intel_context *ce; struct i915_request *rq; @@ -602,9 +603,9 @@ static int live_hold_reset(void *arg) err = -EBUSY; goto out; } - tasklet_disable(&engine->execlists.tasklet); + tasklet_disable(&se->tasklet); - engine->execlists.tasklet.callback(&engine->execlists.tasklet); + se->tasklet.callback(&se->tasklet); GEM_BUG_ON(execlists_active(&engine->execlists) != rq); i915_request_get(rq); @@ -614,7 +615,7 @@ static int live_hold_reset(void *arg) __intel_engine_reset_bh(engine, NULL); GEM_BUG_ON(rq->fence.error != -EIO); - tasklet_enable(&engine->execlists.tasklet); + tasklet_enable(&se->tasklet); clear_and_wake_up_bit(I915_RESET_ENGINE + id, >->reset.flags); local_bh_enable(); @@ -762,7 +763,7 @@ static int live_error_interrupt(void *arg) } /* Kick the tasklet to process the error */ - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); if (client[i]->fence.error != p->error[i]) { pr_err("%s: %s request (%s) with wrong error code: %d\n", engine->name, @@ -1176,8 +1177,8 @@ static int live_timeslice_rewind(void *arg) while (i915_request_is_active(rq[A2])) { /* semaphore yield! */ /* Wait for the timeslice to kick in */ del_timer(&engine->execlists.timer); - tasklet_hi_schedule(&engine->execlists.tasklet); - intel_engine_flush_submission(engine); + intel_engine_kick_scheduler(engine); + intel_engine_flush_scheduler(engine); } /* -> ELSP[] = { { A:rq1 }, { B:rq1 } } */ GEM_BUG_ON(!i915_request_is_active(rq[A1])); @@ -1350,7 +1351,7 @@ static int live_timeslice_queue(void *arg) /* Wait until we ack the release_queue and start timeslicing */ do { cond_resched(); - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); } while (READ_ONCE(engine->execlists.pending[0])); /* Timeslice every jiffy, so within 2 we should signal */ @@ -2320,9 +2321,9 @@ static int __cancel_fail(struct live_preempt_cancel *arg) /* force preempt reset [failure] */ while (!engine->execlists.pending[0]) - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); del_timer_sync(&engine->execlists.preempt); - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); cancel_reset_timeout(engine); @@ -2826,10 +2827,10 @@ static int __live_preempt_ring(struct intel_engine_cs *engine, } i915_request_add(tmp); - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); n++; } - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); pr_debug("%s: Filled %d with %d nop tails {size:%x, tail:%x, emit:%x, rq.tail:%x}\n", engine->name, queue_sz, n, ce[0]->ring->size, @@ -2863,7 +2864,7 @@ static int __live_preempt_ring(struct intel_engine_cs *engine, ce[1]->ring->tail, ce[1]->ring->emit); err_ce: - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); igt_spinner_end(spin); for (n = 0; n < ARRAY_SIZE(ce); n++) { if (IS_ERR_OR_NULL(ce[n])) @@ -3398,7 +3399,7 @@ static int live_preempt_timeout(void *arg) i915_request_get(rq); i915_request_add(rq); - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); engine->props.preempt_timeout_ms = saved_timeout; if (i915_request_wait(rq, 0, HZ / 10) < 0) { @@ -4438,7 +4439,7 @@ static int bond_virtual_engine(struct intel_gt *gt, } } onstack_fence_fini(&fence); - intel_engine_flush_submission(master); + intel_engine_flush_scheduler(master); igt_spinner_end(&spin); if (i915_request_wait(rq[0], 0, HZ / 10) < 0) { @@ -4577,9 +4578,9 @@ static int reset_virtual_engine(struct intel_gt *gt, err = -EBUSY; goto out_heartbeat; } - tasklet_disable(&engine->execlists.tasklet); + tasklet_disable(&se->tasklet); - engine->execlists.tasklet.callback(&engine->execlists.tasklet); + se->tasklet.callback(&se->tasklet); GEM_BUG_ON(execlists_active(&engine->execlists) != rq); /* Fake a preemption event; failed of course */ @@ -4596,7 +4597,7 @@ static int reset_virtual_engine(struct intel_gt *gt, GEM_BUG_ON(rq->fence.error != -EIO); /* Release our grasp on the engine, letting CS flow again */ - tasklet_enable(&engine->execlists.tasklet); + tasklet_enable(&se->tasklet); clear_and_wake_up_bit(I915_RESET_ENGINE + engine->id, >->reset.flags); local_bh_enable(); diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c index 8cad102922e7..cdb0ceff3be1 100644 --- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c +++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c @@ -1701,7 +1701,8 @@ static int __igt_atomic_reset_engine(struct intel_engine_cs *engine, const struct igt_atomic_section *p, const char *mode) { - struct tasklet_struct * const t = &engine->execlists.tasklet; + struct tasklet_struct * const t = + &intel_engine_get_scheduler(engine)->tasklet; int err; GEM_TRACE("i915_reset_engine(%s:%s) under %s\n", diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c index e97adf1b7729..279091e41b41 100644 --- a/drivers/gpu/drm/i915/gt/selftest_lrc.c +++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c @@ -49,7 +49,7 @@ static int wait_for_submit(struct intel_engine_cs *engine, unsigned long timeout) { /* Ignore our own attempts to suppress excess tasklets */ - tasklet_hi_schedule(&engine->execlists.tasklet); + intel_engine_kick_scheduler(engine); timeout += jiffies; do { @@ -59,7 +59,7 @@ static int wait_for_submit(struct intel_engine_cs *engine, return 0; /* Wait until the HW has acknowleged the submission (or err) */ - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); if (!READ_ONCE(engine->execlists.pending[0]) && is_active(rq)) return 0; @@ -417,7 +417,7 @@ static int __live_lrc_state(struct intel_engine_cs *engine, if (err) goto err_rq; - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); expected[RING_TAIL_IDX] = ce->ring->tail; if (i915_request_wait(rq, 0, HZ / 5) < 0) { @@ -1852,17 +1852,18 @@ static int live_lrc_indirect_ctx_bb(void *arg) static void garbage_reset(struct intel_engine_cs *engine, struct i915_request *rq) { + struct i915_sched *se = intel_engine_get_scheduler(engine); const unsigned int bit = I915_RESET_ENGINE + engine->id; unsigned long *lock = &engine->gt->reset.flags; local_bh_disable(); if (!test_and_set_bit(bit, lock)) { - tasklet_disable(&engine->execlists.tasklet); + tasklet_disable(&se->tasklet); if (!rq->fence.error) __intel_engine_reset_bh(engine, NULL); - tasklet_enable(&engine->execlists.tasklet); + tasklet_enable(&se->tasklet); clear_and_wake_up_bit(bit, lock); } local_bh_enable(); @@ -1923,7 +1924,7 @@ static int __lrc_garbage(struct intel_engine_cs *engine, struct rnd_state *prng) intel_context_set_banned(ce); garbage_reset(engine, hang); - intel_engine_flush_submission(engine); + intel_engine_flush_scheduler(engine); if (!hang->fence.error) { i915_request_put(hang); pr_err("%s: corrupted context was not reset\n", diff --git a/drivers/gpu/drm/i915/gt/selftest_reset.c b/drivers/gpu/drm/i915/gt/selftest_reset.c index 8784257ec808..08594309a96d 100644 --- a/drivers/gpu/drm/i915/gt/selftest_reset.c +++ b/drivers/gpu/drm/i915/gt/selftest_reset.c @@ -321,7 +321,8 @@ static int igt_atomic_engine_reset(void *arg) goto out_unlock; for_each_engine(engine, gt, id) { - struct tasklet_struct *t = &engine->execlists.tasklet; + struct tasklet_struct *t = + &intel_engine_get_scheduler(engine)->tasklet; if (t->func) tasklet_disable(t); diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index 7b1780d1652f..cf99715e194d 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -241,9 +241,9 @@ static void __guc_dequeue(struct intel_engine_cs *engine) static void guc_submission_tasklet(struct tasklet_struct *t) { + struct i915_sched *se = from_tasklet(se, t, tasklet); struct intel_engine_cs * const engine = - from_tasklet(engine, t, execlists.tasklet); - struct i915_sched *se = intel_engine_get_scheduler(engine); + container_of(se, typeof(*engine), sched); struct intel_engine_execlists * const execlists = &engine->execlists; struct i915_request **port, *rq; unsigned long flags; @@ -271,16 +271,12 @@ static void cs_irq_handler(struct intel_engine_cs *engine, u16 iir) { if (iir & GT_RENDER_USER_INTERRUPT) { intel_engine_signal_breadcrumbs(engine); - tasklet_hi_schedule(&engine->execlists.tasklet); + intel_engine_kick_scheduler(engine); } } static void guc_reset_prepare(struct intel_engine_cs *engine) { - struct intel_engine_execlists * const execlists = &engine->execlists; - - ENGINE_TRACE(engine, "\n"); - /* * Prevent request submission to the hardware until we have * completed the reset in i915_gem_reset_finish(). If a request @@ -290,7 +286,7 @@ static void guc_reset_prepare(struct intel_engine_cs *engine) * Turning off the execlists->tasklet until the reset is over * prevents the race. */ - __tasklet_disable_sync_once(&execlists->tasklet); + i915_sched_enable_tasklet(intel_engine_get_scheduler(engine)); } static void guc_reset_state(struct intel_context *ce, @@ -373,14 +369,7 @@ static void guc_reset_cancel(struct intel_engine_cs *engine) static void guc_reset_finish(struct intel_engine_cs *engine) { - struct intel_engine_execlists * const execlists = &engine->execlists; - - if (__tasklet_enable(&execlists->tasklet)) - /* And kick in case we missed a new request submission. */ - tasklet_hi_schedule(&execlists->tasklet); - - ENGINE_TRACE(engine, "depth->%d\n", - atomic_read(&execlists->tasklet.count)); + i915_sched_enable_tasklet(intel_engine_get_scheduler(engine)); } /* @@ -576,8 +565,6 @@ static void guc_release(struct intel_engine_cs *engine) { engine->sanitize = NULL; /* no longer in control, nothing to sanitize */ - tasklet_kill(&engine->execlists.tasklet); - intel_engine_cleanup_common(engine); lrc_fini_wa_ctx(engine); } @@ -654,7 +641,7 @@ int intel_guc_submission_setup(struct intel_engine_cs *engine) */ GEM_BUG_ON(INTEL_GEN(i915) < 11); - tasklet_setup(&engine->execlists.tasklet, guc_submission_tasklet); + tasklet_setup(&engine->sched.tasklet, guc_submission_tasklet); guc_default_vfuncs(engine); guc_default_irqs(engine); diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c index d736c1aae6e5..1b52dcaa023d 100644 --- a/drivers/gpu/drm/i915/i915_request.c +++ b/drivers/gpu/drm/i915/i915_request.c @@ -1847,7 +1847,7 @@ long i915_request_wait(struct i915_request *rq, * for unhappy HW. */ if (i915_request_is_ready(rq)) - __intel_engine_flush_submission(rq->engine, false); + __i915_sched_flush(i915_request_get_scheduler(rq), false); for (;;) { set_current_state(state); diff --git a/drivers/gpu/drm/i915/i915_scheduler.c b/drivers/gpu/drm/i915/i915_scheduler.c index 4d281e990a86..ba308e937109 100644 --- a/drivers/gpu/drm/i915/i915_scheduler.c +++ b/drivers/gpu/drm/i915/i915_scheduler.c @@ -144,6 +144,7 @@ void i915_sched_fini(struct i915_sched *se) { GEM_BUG_ON(!list_empty(&se->requests)); + tasklet_kill(&se->tasklet); /* flush the callback */ i915_sched_park(se); } @@ -345,7 +346,7 @@ static void kick_submission(struct intel_engine_cs *engine, engine->execlists.queue_priority_hint = prio; if (need_preempt(prio, rq_prio(inflight))) - tasklet_hi_schedule(&engine->execlists.tasklet); + intel_engine_kick_scheduler(engine); } static void ipi_priority(struct i915_request *rq, int prio) @@ -636,7 +637,7 @@ void i915_request_enqueue(struct i915_request *rq) GEM_BUG_ON(list_empty(&rq->sched.link)); spin_unlock_irqrestore(&se->lock, flags); if (kick) - tasklet_hi_schedule(&engine->execlists.tasklet); + i915_sched_kick(se); } struct i915_request * @@ -774,7 +775,7 @@ void __i915_sched_resume_request(struct intel_engine_cs *engine, if (rq_prio(rq) > engine->execlists.queue_priority_hint) { engine->execlists.queue_priority_hint = rq_prio(rq); - tasklet_hi_schedule(&engine->execlists.tasklet); + i915_sched_kick(se); } if (!i915_request_on_hold(rq)) @@ -1002,6 +1003,44 @@ void i915_sched_node_retire(struct i915_sched_node *node) } } +void i915_sched_disable_tasklet(struct i915_sched *se) +{ + __tasklet_disable_sync_once(&se->tasklet); + GEM_BUG_ON(!__i915_sched_tasklet_is_disabled(se)); + SCHED_TRACE(se, "disable:%d\n", atomic_read(&se->tasklet.count)); +} + +void i915_sched_enable_tasklet(struct i915_sched *se) +{ + SCHED_TRACE(se, "enable:%d\n", atomic_read(&se->tasklet.count)); + GEM_BUG_ON(!__i915_sched_tasklet_is_disabled(se)); + + /* And kick in case we missed a new request submission. */ + if (__tasklet_enable(&se->tasklet)) + i915_sched_kick(se); +} + +void __i915_sched_flush(struct i915_sched *se, bool sync) +{ + struct tasklet_struct *t = &se->tasklet; + + if (!t->callback) + return; + + local_bh_disable(); + if (tasklet_trylock(t)) { + /* Must wait for any GPU reset in progress. */ + if (__tasklet_is_enabled(t)) + t->callback(t); + tasklet_unlock(t); + } + local_bh_enable(); + + /* Synchronise and wait for the tasklet on another CPU */ + if (sync) + tasklet_unlock_wait(t); +} + void i915_request_show_with_schedule(struct drm_printer *m, const struct i915_request *rq, const char *prefix, diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h index 6b80df7feb78..1803fc37bada 100644 --- a/drivers/gpu/drm/i915/i915_scheduler.h +++ b/drivers/gpu/drm/i915/i915_scheduler.h @@ -92,6 +92,52 @@ i915_sched_is_last_request(const struct i915_sched *se, return list_is_last_rcu(&rq->sched.link, &se->requests); } +static inline void +i915_sched_lock_bh(struct i915_sched *se) +{ + local_bh_disable(); /* prevent local softirq and lock recursion */ + tasklet_lock(&se->tasklet); +} + +static inline void +i915_sched_unlock_bh(struct i915_sched *se) +{ + tasklet_unlock(&se->tasklet); + local_bh_enable(); /* restore softirq, and kick ksoftirqd! */ +} + +/* + * Control execution of the submission backend. While this does not immediately + * stop the HW, it does prevent us from propagating any more requests to it. + * Typically used aroung reset. + */ +void i915_sched_disable_tasklet(struct i915_sched *se); +void i915_sched_enable_tasklet(struct i915_sched *se); + +static inline bool __i915_sched_tasklet_is_disabled(const struct i915_sched *se) +{ + return unlikely(!__tasklet_is_enabled(&se->tasklet)); +} + +static inline void i915_sched_kill_tasklet(struct i915_sched *se) +{ + tasklet_kill(&se->tasklet); +} + +/* Schedule execution of the scheduler's bottom-half, the submission backend */ +static inline void i915_sched_kick(struct i915_sched *se) +{ + /* Kick the tasklet for some interrupt coalescing and reset handling */ + tasklet_hi_schedule(&se->tasklet); +} + +/* Immediately execute the scheduler's bottom-half, and wait for completion */ +void __i915_sched_flush(struct i915_sched *se, bool sync); +static inline void i915_sched_flush(struct i915_sched *se) +{ + __i915_sched_flush(se, true); +} + void i915_request_show_with_schedule(struct drm_printer *m, const struct i915_request *rq, const char *prefix, diff --git a/drivers/gpu/drm/i915/i915_scheduler_types.h b/drivers/gpu/drm/i915/i915_scheduler_types.h index 2b34d9882835..3e2e47298bc6 100644 --- a/drivers/gpu/drm/i915/i915_scheduler_types.h +++ b/drivers/gpu/drm/i915/i915_scheduler_types.h @@ -7,6 +7,7 @@ #ifndef _I915_SCHEDULER_TYPES_H_ #define _I915_SCHEDULER_TYPES_H_ +#include <linux/interrupt.h> #include <linux/list.h> #include <linux/workqueue.h> @@ -54,6 +55,14 @@ struct i915_sched { */ struct rb_root_cached queue; + /** + * @tasklet: softirq tasklet for bottom half + * + * The tasklet is responsible for transferring the priority queue + * to HW, and for handling responses from HW. + */ + struct tasklet_struct tasklet; + /* Inter-engine scheduling delegate */ struct i915_sched_ipi { struct i915_request *list; diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c index d2a678a2497e..39c619bccb74 100644 --- a/drivers/gpu/drm/i915/selftests/i915_request.c +++ b/drivers/gpu/drm/i915/selftests/i915_request.c @@ -1517,7 +1517,7 @@ static int switch_to_kernel_sync(struct intel_context *ce, int err) i915_request_put(rq); while (!err && !intel_engine_is_idle(ce->engine)) - intel_engine_flush_submission(ce->engine); + intel_engine_flush_scheduler(ce->engine); return err; } @@ -1902,7 +1902,7 @@ static int measure_inter_request(struct intel_context *ce) return -ENOMEM; } - intel_engine_flush_submission(ce->engine); + intel_engine_flush_scheduler(ce->engine); for (i = 1; i <= ARRAY_SIZE(elapsed); i++) { struct i915_request *rq; u32 *cs; @@ -1934,7 +1934,7 @@ static int measure_inter_request(struct intel_context *ce) i915_request_add(rq); } i915_sw_fence_commit(submit); - intel_engine_flush_submission(ce->engine); + intel_engine_flush_scheduler(ce->engine); heap_fence_put(submit); semaphore_set(sema, 1); @@ -2030,7 +2030,7 @@ static int measure_context_switch(struct intel_context *ce) } } i915_request_put(fence); - intel_engine_flush_submission(ce->engine); + intel_engine_flush_scheduler(ce->engine); semaphore_set(sema, 1); err = intel_gt_wait_for_idle(ce->engine->gt, HZ / 2); @@ -2221,7 +2221,7 @@ static int measure_completion(struct intel_context *ce) dma_fence_add_callback(&rq->fence, &cb.base, signal_cb); i915_request_add(rq); - intel_engine_flush_submission(ce->engine); + intel_engine_flush_scheduler(ce->engine); if (wait_for(READ_ONCE(sema[i]) == -1, 50)) { err = -EIO; goto err; diff --git a/drivers/gpu/drm/i915/selftests/i915_scheduler.c b/drivers/gpu/drm/i915/selftests/i915_scheduler.c index 956a9af6f7e5..f54bdbeaa48b 100644 --- a/drivers/gpu/drm/i915/selftests/i915_scheduler.c +++ b/drivers/gpu/drm/i915/selftests/i915_scheduler.c @@ -171,12 +171,12 @@ static int __single_chain(struct intel_engine_cs *engine, unsigned long length, i915_request_add(rq); count++; } - intel_engine_flush_submission(engine); + i915_sched_flush(se); - execlists_active_lock_bh(&engine->execlists); + i915_sched_lock_bh(se); if (fn(rq, count, count - 1) && !check_context_order(se)) err = -EINVAL; - execlists_active_unlock_bh(&engine->execlists); + i915_sched_unlock_bh(se); igt_spinner_end(&spin); err_context: @@ -256,12 +256,12 @@ static int __wide_chain(struct intel_engine_cs *engine, unsigned long width, } i915_request_add(rq[i]); } - intel_engine_flush_submission(engine); + i915_sched_flush(se); - execlists_active_lock_bh(&engine->execlists); + i915_sched_lock_bh(se); if (fn(rq[i - 1], i, count) && !check_context_order(se)) err = -EINVAL; - execlists_active_unlock_bh(&engine->execlists); + i915_sched_unlock_bh(se); igt_spinner_end(&spin); err_free: @@ -345,12 +345,12 @@ static int __inv_chain(struct intel_engine_cs *engine, unsigned long width, } i915_request_add(rq[i]); } - intel_engine_flush_submission(engine); + i915_sched_flush(se); - execlists_active_lock_bh(&engine->execlists); + i915_sched_lock_bh(se); if (fn(rq[i - 1], i, count) && !check_context_order(se)) err = -EINVAL; - execlists_active_unlock_bh(&engine->execlists); + i915_sched_unlock_bh(se); igt_spinner_end(&spin); err_free: @@ -451,12 +451,12 @@ static int __sparse_chain(struct intel_engine_cs *engine, unsigned long width, if (err) break; } - intel_engine_flush_submission(engine); + i915_sched_flush(se); - execlists_active_lock_bh(&engine->execlists); + i915_sched_lock_bh(se); if (fn(rq[i - 1], i, count) && !check_context_order(se)) err = -EINVAL; - execlists_active_unlock_bh(&engine->execlists); + i915_sched_unlock_bh(se); igt_spinner_end(&spin); err_free: diff --git a/drivers/gpu/drm/i915/selftests/igt_spinner.c b/drivers/gpu/drm/i915/selftests/igt_spinner.c index 83f6e5f31fb3..0e6c1ea0082a 100644 --- a/drivers/gpu/drm/i915/selftests/igt_spinner.c +++ b/drivers/gpu/drm/i915/selftests/igt_spinner.c @@ -221,7 +221,7 @@ void igt_spinner_fini(struct igt_spinner *spin) bool igt_wait_for_spinner(struct igt_spinner *spin, struct i915_request *rq) { if (i915_request_is_ready(rq)) - intel_engine_flush_submission(rq->engine); + __i915_sched_flush(i915_request_get_scheduler(rq), false); return !(wait_for_us(i915_seqno_passed(hws_seqno(spin, rq), rq->fence.seqno), -- 2.20.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx