On Mon, May 31, 2021 at 10:31:53AM +0200, Daniel Vetter wrote: > On Thu, May 27, 2021 at 4:19 PM Matthew Brost <matthew.brost@xxxxxxxxx> wrote: > > > > On Thu, May 27, 2021 at 10:41:10AM +0100, Tvrtko Ursulin wrote: > > > > > > On 26/05/2021 21:03, Matthew Brost wrote: > > > > Introduce i915_sched_engine object which is lower level data structure > > > > that i915_scheduler / generic code can operate on without touching > > > > execlist specific structures. This allows additional submission backends > > > > to be added without breaking the layering. > > > > > > > > This is a bit of detour to integrating the i915 with the DRM scheduler > > > > but this object will still exist when the DRM scheduler lands in the > > > > i915. It will however look a bit different. It will encapsulate the > > > > drm_gpu_scheduler object plus and common variables (to the backends) > > > > related to scheduling. Regardless this is a step in the right direction. > > > > > > It looks like pretty much the same concept Chris implemented in upstream(*) before they got removed. Both series move the scheduling lists into a new object, be it i915_sched, or i915_sched_engine. There probably are some differences but without looking much deeper it is hard to say if they are important. > > > > > > Were you aware of this series and were there any technical objections to it? > > > > > > > I haven't dug to deep into the series but yes, I am aware of this series. I > > merged my series to internal while Chris had this inflight upstream. They do > > have similar concepts of i915_sched_engine object. > > Imo both of them are a detour since it's not drm/scheduler, but also > we need one and this one here is the one we have so I'm not seeing the > point of repainting that bikeshed in different colors. Imo much better > if we just land this and then head as straight as possible towards > drm/scheduler as the interface. > Agree. > Now a bit of polish here might be good, but in entirely different ways: > - I think splitting the patch into the purely mechanical code movement > and addition of the new callbacks would be good. Should slice really > well I hope, so not much work. > This patch is basically find / replace in the sense it moves existing variables + vfuncs from one structure to another. It does add a few wrappers so not to touch the new structures variables but nothing else beyond that. IMO there really isn't a logical split point. > - Proper kerneldoc for at least anything new around datastructures. > That means a) check the header is pulled in somewhere suitable in > i915.rst b) minimal fixes for any warnings it throws c) then do right > in anything new. Especially with datastructure stuff like > locking/lifetime rules or rules around callbacks and these big ticket > items are important to document and cross reference, and I think the > pain for doing a)&b) for these is worth it. > I'll add some kerenl doc in my next post of this patch. Matt > > > Because there do appear to be some extra advantages in the dropped work, like consolidating finding of active request and moving some other bits to be backend agnostic. > > > > > > > After briefly looking at this series most of Chris's changes are not relevent if > > we move to DRM scheduler. All of the the below series [1] and internal is based > > this code not Chris's. I don't see the point revisiting Chris's old patches when > > the goal is to merge GuC submission quickly, rework it is place as needed, and > > the long term goal is to move to the DRM scheduler. > > Agreed. > > Cheers, Daniel > > > > > Matt > > > > [1] https://patchwork.freedesktop.org/series/89844/ > > > > > Regards, > > > > > > Tvrtko > > > > > > > > > *) Approx list: > > > > > > 564c84ac5dee drm/i915: Move finding the current active request to the scheduler > > > f06f5161eba3 drm/i915: Move submit_request to i915_sched_engine > > > 38a40d211075 drm/i915/gt: Only kick the scheduler on timeslice/preemption change > > > 4f08e41b51e2 drm/i915: Move tasklet from execlists to sched > > > 5d814ae56fdd drm/i915: Move scheduler queue > > > 4d4da5ab8b3c drm/i915: Move common active lists from engine to i915_scheduler > > > 4a5c90b6f7a8 drm/i915: Wrap access to intel_engine.active > > > 34cab8ee986f drm/i915/gt: Pull all execlists scheduler initialisation together > > > c968d4d87cf4 drm/i915: Extract the ability to defer and rerun a request later > > > 746cafc44205 drm/i915: Extract request suspension from the execlists > > > 3d473f1476d8 drm/i915: Extract request rewinding from execlists > > > d353a704a6db drm/i915: Extract request submission from execlists > > > ea848ef93075 drm/i915: Replace engine->schedule() with a known request operation > > > > > > > > > > > Cc: Daniel Vetter <daniel.vetter@xxxxxxxxx> > > > > Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx> > > > > Signed-off-by: Matthew Brost <matthew.brost@xxxxxxxxx> > > > > --- > > > > drivers/gpu/drm/i915/gem/i915_gem_wait.c | 4 +- > > > > drivers/gpu/drm/i915/gt/intel_engine.h | 16 - > > > > drivers/gpu/drm/i915/gt/intel_engine_cs.c | 77 ++-- > > > > .../gpu/drm/i915/gt/intel_engine_heartbeat.c | 4 +- > > > > drivers/gpu/drm/i915/gt/intel_engine_pm.c | 10 +- > > > > drivers/gpu/drm/i915/gt/intel_engine_types.h | 42 +-- > > > > drivers/gpu/drm/i915/gt/intel_engine_user.c | 2 +- > > > > .../drm/i915/gt/intel_execlists_submission.c | 350 +++++++++++------- > > > > .../gpu/drm/i915/gt/intel_ring_submission.c | 13 +- > > > > drivers/gpu/drm/i915/gt/mock_engine.c | 17 +- > > > > drivers/gpu/drm/i915/gt/selftest_execlists.c | 36 +- > > > > drivers/gpu/drm/i915/gt/selftest_hangcheck.c | 6 +- > > > > drivers/gpu/drm/i915/gt/selftest_lrc.c | 6 +- > > > > drivers/gpu/drm/i915/gt/selftest_reset.c | 2 +- > > > > .../gpu/drm/i915/gt/uc/intel_guc_submission.c | 75 ++-- > > > > drivers/gpu/drm/i915/i915_gpu_error.c | 7 +- > > > > drivers/gpu/drm/i915/i915_request.c | 50 +-- > > > > drivers/gpu/drm/i915/i915_request.h | 2 +- > > > > drivers/gpu/drm/i915/i915_scheduler.c | 168 ++++----- > > > > drivers/gpu/drm/i915/i915_scheduler.h | 65 +++- > > > > drivers/gpu/drm/i915/i915_scheduler_types.h | 63 ++++ > > > > 21 files changed, 575 insertions(+), 440 deletions(-) > > > > > > > > diff --git a/drivers/gpu/drm/i915/gem/i915_gem_wait.c b/drivers/gpu/drm/i915/gem/i915_gem_wait.c > > > > index 4b9856d5ba14..af1fbf8e2a9a 100644 > > > > --- a/drivers/gpu/drm/i915/gem/i915_gem_wait.c > > > > +++ b/drivers/gpu/drm/i915/gem/i915_gem_wait.c > > > > @@ -104,8 +104,8 @@ static void fence_set_priority(struct dma_fence *fence, > > > > engine = rq->engine; > > > > rcu_read_lock(); /* RCU serialisation for set-wedged protection */ > > > > - if (engine->schedule) > > > > - engine->schedule(rq, attr); > > > > + if (engine->sched_engine->schedule) > > > > + engine->sched_engine->schedule(rq, attr); > > > > rcu_read_unlock(); > > > > } > > > > diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h > > > > index 8d9184920c51..988d9688ae4d 100644 > > > > --- a/drivers/gpu/drm/i915/gt/intel_engine.h > > > > +++ b/drivers/gpu/drm/i915/gt/intel_engine.h > > > > @@ -123,20 +123,6 @@ 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! */ > > > > -} > > > > - > > > > struct i915_request * > > > > execlists_unwind_incomplete_requests(struct intel_engine_execlists *execlists); > > > > @@ -257,8 +243,6 @@ intel_engine_find_active_request(struct intel_engine_cs *engine); > > > > u32 intel_engine_context_size(struct intel_gt *gt, u8 class); > > > > -void intel_engine_init_active(struct intel_engine_cs *engine, > > > > - unsigned int subclass); > > > > #define ENGINE_PHYSICAL 0 > > > > #define ENGINE_MOCK 1 > > > > #define ENGINE_VIRTUAL 2 > > > > diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c > > > > index 3f9a811eb02b..dc939c8ef288 100644 > > > > --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c > > > > +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c > > > > @@ -8,6 +8,7 @@ > > > > #include "gem/i915_gem_context.h" > > > > #include "i915_drv.h" > > > > +#include "i915_scheduler.h" > > > > #include "intel_breadcrumbs.h" > > > > #include "intel_context.h" > > > > @@ -326,9 +327,6 @@ static int intel_engine_setup(struct intel_gt *gt, enum intel_engine_id id) > > > > if (engine->context_size) > > > > DRIVER_CAPS(i915)->has_logical_contexts = true; > > > > - /* Nothing to do here, execute in order of dependencies */ > > > > - engine->schedule = NULL; > > > > - > > > > ewma__engine_latency_init(&engine->latency); > > > > seqcount_init(&engine->stats.lock); > > > > @@ -583,9 +581,6 @@ void intel_engine_init_execlists(struct intel_engine_cs *engine) > > > > memset(execlists->pending, 0, sizeof(execlists->pending)); > > > > execlists->active = > > > > memset(execlists->inflight, 0, sizeof(execlists->inflight)); > > > > - > > > > - execlists->queue_priority_hint = INT_MIN; > > > > - execlists->queue = RB_ROOT_CACHED; > > > > } > > > > static void cleanup_status_page(struct intel_engine_cs *engine) > > > > @@ -712,11 +707,17 @@ static int engine_setup_common(struct intel_engine_cs *engine) > > > > goto err_status; > > > > } > > > > + engine->sched_engine = i915_sched_engine_create(ENGINE_PHYSICAL); > > > > + if (!engine->sched_engine) { > > > > + err = -ENOMEM; > > > > + goto err_sched_engine; > > > > + } > > > > + engine->sched_engine->engine = engine; > > > > + > > > > err = intel_engine_init_cmd_parser(engine); > > > > if (err) > > > > goto err_cmd_parser; > > > > - intel_engine_init_active(engine, ENGINE_PHYSICAL); > > > > intel_engine_init_execlists(engine); > > > > intel_engine_init__pm(engine); > > > > intel_engine_init_retire(engine); > > > > @@ -735,6 +736,8 @@ static int engine_setup_common(struct intel_engine_cs *engine) > > > > return 0; > > > > err_cmd_parser: > > > > + i915_sched_engine_put(engine->sched_engine); > > > > +err_sched_engine: > > > > intel_breadcrumbs_free(engine->breadcrumbs); > > > > err_status: > > > > cleanup_status_page(engine); > > > > @@ -773,11 +776,11 @@ static int measure_breadcrumb_dw(struct intel_context *ce) > > > > frame->rq.ring = &frame->ring; > > > > mutex_lock(&ce->timeline->mutex); > > > > - spin_lock_irq(&engine->active.lock); > > > > + spin_lock_irq(&engine->sched_engine->lock); > > > > dw = engine->emit_fini_breadcrumb(&frame->rq, frame->cs) - frame->cs; > > > > - spin_unlock_irq(&engine->active.lock); > > > > + spin_unlock_irq(&engine->sched_engine->lock); > > > > mutex_unlock(&ce->timeline->mutex); > > > > GEM_BUG_ON(dw & 1); /* RING_TAIL must be qword aligned */ > > > > @@ -786,28 +789,6 @@ static int measure_breadcrumb_dw(struct intel_context *ce) > > > > return dw; > > > > } > > > > -void > > > > -intel_engine_init_active(struct intel_engine_cs *engine, unsigned int subclass) > > > > -{ > > > > - INIT_LIST_HEAD(&engine->active.requests); > > > > - INIT_LIST_HEAD(&engine->active.hold); > > > > - > > > > - spin_lock_init(&engine->active.lock); > > > > - lockdep_set_subclass(&engine->active.lock, subclass); > > > > - > > > > - /* > > > > - * Due to an interesting quirk in lockdep's internal debug tracking, > > > > - * after setting a subclass we must ensure the lock is used. Otherwise, > > > > - * nr_unused_locks is incremented once too often. > > > > - */ > > > > -#ifdef CONFIG_DEBUG_LOCK_ALLOC > > > > - local_irq_disable(); > > > > - lock_map_acquire(&engine->active.lock.dep_map); > > > > - lock_map_release(&engine->active.lock.dep_map); > > > > - local_irq_enable(); > > > > -#endif > > > > -} > > > > - > > > > static struct intel_context * > > > > create_pinned_context(struct intel_engine_cs *engine, > > > > unsigned int hwsp, > > > > @@ -955,10 +936,10 @@ int intel_engines_init(struct intel_gt *gt) > > > > */ > > > > void intel_engine_cleanup_common(struct intel_engine_cs *engine) > > > > { > > > > - GEM_BUG_ON(!list_empty(&engine->active.requests)); > > > > - tasklet_kill(&engine->execlists.tasklet); /* flush the callback */ > > > > + GEM_BUG_ON(!list_empty(&engine->sched_engine->requests)); > > > > intel_breadcrumbs_free(engine->breadcrumbs); > > > > + i915_sched_engine_put(engine->sched_engine); > > > > intel_engine_fini_retire(engine); > > > > intel_engine_cleanup_cmd_parser(engine); > > > > @@ -1241,7 +1222,7 @@ static bool ring_is_idle(struct intel_engine_cs *engine) > > > > void __intel_engine_flush_submission(struct intel_engine_cs *engine, bool sync) > > > > { > > > > - struct tasklet_struct *t = &engine->execlists.tasklet; > > > > + struct tasklet_struct *t = &engine->sched_engine->tasklet; > > > > if (!t->callback) > > > > return; > > > > @@ -1281,7 +1262,7 @@ bool intel_engine_is_idle(struct intel_engine_cs *engine) > > > > intel_engine_flush_submission(engine); > > > > /* ELSP is empty, but there are ready requests? E.g. after reset */ > > > > - if (!RB_EMPTY_ROOT(&engine->execlists.queue.rb_root)) > > > > + if (!i915_sched_engine_is_empty(engine->sched_engine)) > > > > return false; > > > > /* Ring stopped? */ > > > > @@ -1347,7 +1328,7 @@ static struct intel_timeline *get_timeline(struct i915_request *rq) > > > > struct intel_timeline *tl; > > > > /* > > > > - * Even though we are holding the engine->active.lock here, there > > > > + * Even though we are holding the engine->sched_engine->lock here, there > > > > * is no control over the submission queue per-se and we are > > > > * inspecting the active state at a random point in time, with an > > > > * unknown queue. Play safe and make sure the timeline remains valid. > > > > @@ -1502,10 +1483,10 @@ 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)), > > > > - repr_timer(&engine->execlists.preempt), > > > > - repr_timer(&engine->execlists.timer)); > > > > + &engine->sched_engine->tasklet.state)), > > > > + enableddisabled(!atomic_read(&engine->sched_engine->tasklet.count)), > > > > + repr_timer(&execlists->preempt), > > > > + repr_timer(&execlists->timer)); > > > > read = execlists->csb_head; > > > > write = READ_ONCE(*execlists->csb_write); > > > > @@ -1527,7 +1508,7 @@ static void intel_engine_print_registers(struct intel_engine_cs *engine, > > > > idx, hws[idx * 2], hws[idx * 2 + 1]); > > > > } > > > > - execlists_active_lock_bh(execlists); > > > > + sched_engine_active_lock_bh(engine->sched_engine); > > > > rcu_read_lock(); > > > > for (port = execlists->active; (rq = *port); port++) { > > > > char hdr[160]; > > > > @@ -1558,7 +1539,7 @@ 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); > > > > + sched_engine_active_unlock_bh(engine->sched_engine); > > > > } else if (INTEL_GEN(dev_priv) > 6) { > > > > drm_printf(m, "\tPP_DIR_BASE: 0x%08x\n", > > > > ENGINE_READ(engine, RING_PP_DIR_BASE)); > > > > @@ -1694,7 +1675,7 @@ void intel_engine_dump(struct intel_engine_cs *engine, > > > > drm_printf(m, "\tRequests:\n"); > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > rq = intel_engine_find_active_request(engine); > > > > if (rq) { > > > > struct intel_timeline *tl = get_timeline(rq); > > > > @@ -1725,8 +1706,9 @@ void intel_engine_dump(struct intel_engine_cs *engine, > > > > hexdump(m, rq->context->lrc_reg_state, PAGE_SIZE); > > > > } > > > > } > > > > - drm_printf(m, "\tOn hold?: %lu\n", list_count(&engine->active.hold)); > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + drm_printf(m, "\tOn hold?: %lu\n", > > > > + list_count(&engine->sched_engine->hold)); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > drm_printf(m, "\tMMIO base: 0x%08x\n", engine->mmio_base); > > > > wakeref = intel_runtime_pm_get_if_in_use(engine->uncore->rpm); > > > > @@ -1806,7 +1788,7 @@ intel_engine_find_active_request(struct intel_engine_cs *engine) > > > > * At all other times, we must assume the GPU is still running, but > > > > * we only care about the snapshot of this moment. > > > > */ > > > > - lockdep_assert_held(&engine->active.lock); > > > > + lockdep_assert_held(&engine->sched_engine->lock); > > > > rcu_read_lock(); > > > > request = execlists_active(&engine->execlists); > > > > @@ -1824,7 +1806,8 @@ intel_engine_find_active_request(struct intel_engine_cs *engine) > > > > if (active) > > > > return active; > > > > - list_for_each_entry(request, &engine->active.requests, sched.link) { > > > > + list_for_each_entry(request, &engine->sched_engine->requests, > > > > + sched.link) { > > > > if (__i915_request_is_complete(request)) > > > > continue; > > > > diff --git a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c > > > > index b99ac41695f3..b6a305e6a974 100644 > > > > --- a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c > > > > +++ b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c > > > > @@ -121,7 +121,7 @@ static void heartbeat(struct work_struct *wrk) > > > > * but all other contexts, including the kernel > > > > * context are stuck waiting for the signal. > > > > */ > > > > - } else if (engine->schedule && > > > > + } else if (engine->sched_engine->schedule && > > > > rq->sched.attr.priority < I915_PRIORITY_BARRIER) { > > > > /* > > > > * Gradually raise the priority of the heartbeat to > > > > @@ -136,7 +136,7 @@ static void heartbeat(struct work_struct *wrk) > > > > attr.priority = I915_PRIORITY_BARRIER; > > > > local_bh_disable(); > > > > - engine->schedule(rq, &attr); > > > > + engine->sched_engine->schedule(rq, &attr); > > > > local_bh_enable(); > > > > } else { > > > > if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)) > > > > diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.c b/drivers/gpu/drm/i915/gt/intel_engine_pm.c > > > > index 47f4397095e5..ba6a9931c4e8 100644 > > > > --- a/drivers/gpu/drm/i915/gt/intel_engine_pm.c > > > > +++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.c > > > > @@ -274,14 +274,16 @@ static int __engine_park(struct intel_wakeref *wf) > > > > intel_engine_park_heartbeat(engine); > > > > intel_breadcrumbs_park(engine->breadcrumbs); > > > > - /* Must be reset upon idling, or we may miss the busy wakeup. */ > > > > - GEM_BUG_ON(engine->execlists.queue_priority_hint != INT_MIN); > > > > + /* > > > > + * XXX: Must be reset upon idling, or we may miss the busy wakeup. > > > > + * queue_priority_hint only used in execlists submission but works in > > > > + * other modes as default is INT_MIN. > > > > + */ > > > > + GEM_BUG_ON(engine->sched_engine->queue_priority_hint != INT_MIN); > > > > if (engine->park) > > > > engine->park(engine); > > > > - engine->execlists.no_priolist = false; > > > > - > > > > /* While gt calls i915_vma_parked(), we have to break the lock cycle */ > > > > intel_gt_pm_put_async(engine->gt); > > > > return 0; > > > > diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h > > > > index 9ef349cd5cea..93aa22680db0 100644 > > > > --- a/drivers/gpu/drm/i915/gt/intel_engine_types.h > > > > +++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h > > > > @@ -59,6 +59,7 @@ struct drm_i915_reg_table; > > > > struct i915_gem_context; > > > > struct i915_request; > > > > struct i915_sched_attr; > > > > +struct i915_sched_engine; > > > > struct intel_gt; > > > > struct intel_ring; > > > > struct intel_uncore; > > > > @@ -137,11 +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 > > > > */ > > > > @@ -152,11 +148,6 @@ struct intel_engine_execlists { > > > > */ > > > > struct timer_list preempt; > > > > - /** > > > > - * @default_priolist: priority list for I915_PRIORITY_NORMAL > > > > - */ > > > > - struct i915_priolist default_priolist; > > > > - > > > > /** > > > > * @ccid: identifier for contexts submitted to this engine > > > > */ > > > > @@ -191,11 +182,6 @@ struct intel_engine_execlists { > > > > */ > > > > u32 reset_ccid; > > > > - /** > > > > - * @no_priolist: priority lists disabled > > > > - */ > > > > - bool no_priolist; > > > > - > > > > /** > > > > * @submit_reg: gen-specific execlist submission register > > > > * set to the ExecList Submission Port (elsp) register pre-Gen11 and to > > > > @@ -238,23 +224,8 @@ struct intel_engine_execlists { > > > > unsigned int port_mask; > > > > /** > > > > - * @queue_priority_hint: Highest pending priority. > > > > - * > > > > - * When we add requests into the queue, or adjust the priority of > > > > - * executing requests, we compute the maximum priority of those > > > > - * pending requests. We can then use this value to determine if > > > > - * we need to preempt the executing requests to service the queue. > > > > - * However, since the we may have recorded the priority of an inflight > > > > - * request we wanted to preempt but since completed, at the time of > > > > - * dequeuing the priority hint may no longer may match the highest > > > > - * available request priority. > > > > + * @virtual: virtual of requests, in priority lists > > > > */ > > > > - int queue_priority_hint; > > > > - > > > > - /** > > > > - * @queue: queue of requests, in priority lists > > > > - */ > > > > - struct rb_root_cached queue; > > > > struct rb_root_cached virtual; > > > > /** > > > > @@ -326,11 +297,7 @@ struct intel_engine_cs { > > > > struct intel_sseu sseu; > > > > - struct { > > > > - spinlock_t lock; > > > > - struct list_head requests; > > > > - struct list_head hold; /* ready requests, but on hold */ > > > > - } active; > > > > + struct i915_sched_engine *sched_engine; > > > > /* keep a request in reserve for a [pm] barrier under oom */ > > > > struct i915_request *request_pool; > > > > @@ -459,9 +426,6 @@ struct intel_engine_cs { > > > > * dependencies may need rescheduling. Note the request itself may > > > > * not be ready to run! > > > > */ > > > > - void (*schedule)(struct i915_request *request, > > > > - const struct i915_sched_attr *attr); > > > > - > > > > void (*release)(struct intel_engine_cs *engine); > > > > struct intel_engine_execlists execlists; > > > > diff --git a/drivers/gpu/drm/i915/gt/intel_engine_user.c b/drivers/gpu/drm/i915/gt/intel_engine_user.c > > > > index 3cca7ea2d6ea..84142127ebd8 100644 > > > > --- a/drivers/gpu/drm/i915/gt/intel_engine_user.c > > > > +++ b/drivers/gpu/drm/i915/gt/intel_engine_user.c > > > > @@ -108,7 +108,7 @@ static void set_scheduler_caps(struct drm_i915_private *i915) > > > > for_each_uabi_engine(engine, i915) { /* all engines must agree! */ > > > > int i; > > > > - if (engine->schedule) > > > > + if (engine->sched_engine->schedule) > > > > enabled |= (I915_SCHEDULER_CAP_ENABLED | > > > > I915_SCHEDULER_CAP_PRIORITY); > > > > else > > > > diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c > > > > index 8db200422950..0927a2416b52 100644 > > > > --- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c > > > > +++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c > > > > @@ -273,11 +273,11 @@ static int effective_prio(const struct i915_request *rq) > > > > return prio; > > > > } > > > > -static int queue_prio(const struct intel_engine_execlists *execlists) > > > > +static int queue_prio(const struct i915_sched_engine *sched_engine) > > > > { > > > > struct rb_node *rb; > > > > - rb = rb_first_cached(&execlists->queue); > > > > + rb = rb_first_cached(&sched_engine->queue); > > > > if (!rb) > > > > return INT_MIN; > > > > @@ -318,14 +318,14 @@ static bool need_preempt(const struct intel_engine_cs *engine, > > > > * to preserve FIFO ordering of dependencies. > > > > */ > > > > last_prio = max(effective_prio(rq), I915_PRIORITY_NORMAL - 1); > > > > - if (engine->execlists.queue_priority_hint <= last_prio) > > > > + if (engine->sched_engine->queue_priority_hint <= last_prio) > > > > return false; > > > > /* > > > > * Check against the first request in ELSP[1], it will, thanks to the > > > > * power of PI, be the highest priority of that context. > > > > */ > > > > - if (!list_is_last(&rq->sched.link, &engine->active.requests) && > > > > + if (!list_is_last(&rq->sched.link, &engine->sched_engine->requests) && > > > > rq_prio(list_next_entry(rq, sched.link)) > last_prio) > > > > return true; > > > > @@ -340,7 +340,7 @@ static bool need_preempt(const struct intel_engine_cs *engine, > > > > * context, it's priority would not exceed ELSP[0] aka last_prio. > > > > */ > > > > return max(virtual_prio(&engine->execlists), > > > > - queue_prio(&engine->execlists)) > last_prio; > > > > + queue_prio(engine->sched_engine)) > last_prio; > > > > } > > > > __maybe_unused static bool > > > > @@ -367,10 +367,10 @@ __unwind_incomplete_requests(struct intel_engine_cs *engine) > > > > struct list_head *pl; > > > > int prio = I915_PRIORITY_INVALID; > > > > - lockdep_assert_held(&engine->active.lock); > > > > + lockdep_assert_held(&engine->sched_engine->lock); > > > > list_for_each_entry_safe_reverse(rq, rn, > > > > - &engine->active.requests, > > > > + &engine->sched_engine->requests, > > > > sched.link) { > > > > if (__i915_request_is_complete(rq)) { > > > > list_del_init(&rq->sched.link); > > > > @@ -382,9 +382,10 @@ __unwind_incomplete_requests(struct intel_engine_cs *engine) > > > > GEM_BUG_ON(rq_prio(rq) == I915_PRIORITY_INVALID); > > > > if (rq_prio(rq) != prio) { > > > > prio = rq_prio(rq); > > > > - pl = i915_sched_lookup_priolist(engine, prio); > > > > + pl = i915_sched_lookup_priolist(engine->sched_engine, > > > > + prio); > > > > } > > > > - GEM_BUG_ON(RB_EMPTY_ROOT(&engine->execlists.queue.rb_root)); > > > > + GEM_BUG_ON(i915_sched_engine_is_empty(engine->sched_engine)); > > > > list_move(&rq->sched.link, pl); > > > > set_bit(I915_FENCE_FLAG_PQUEUE, &rq->fence.flags); > > > > @@ -534,13 +535,13 @@ resubmit_virtual_request(struct i915_request *rq, struct virtual_engine *ve) > > > > { > > > > struct intel_engine_cs *engine = rq->engine; > > > > - spin_lock_irq(&engine->active.lock); > > > > + spin_lock_irq(&engine->sched_engine->lock); > > > > clear_bit(I915_FENCE_FLAG_PQUEUE, &rq->fence.flags); > > > > WRITE_ONCE(rq->engine, &ve->base); > > > > ve->base.submit_request(rq); > > > > - spin_unlock_irq(&engine->active.lock); > > > > + spin_unlock_irq(&engine->sched_engine->lock); > > > > } > > > > static void kick_siblings(struct i915_request *rq, struct intel_context *ce) > > > > @@ -569,7 +570,7 @@ 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); > > > > + i915_sched_engine_hi_kick(ve->base.sched_engine); > > > > } > > > > static void __execlists_schedule_out(struct i915_request * const rq, > > > > @@ -579,7 +580,7 @@ static void __execlists_schedule_out(struct i915_request * const rq, > > > > unsigned int ccid; > > > > /* > > > > - * NB process_csb() is not under the engine->active.lock and hence > > > > + * NB process_csb() is not under the engine->sched_engine->lock and hence > > > > * schedule_out can race with schedule_in meaning that we should > > > > * refrain from doing non-trivial work here. > > > > */ > > > > @@ -721,12 +722,11 @@ dump_port(char *buf, int buflen, const char *prefix, struct i915_request *rq) > > > > } > > > > static __maybe_unused noinline void > > > > -trace_ports(const struct intel_engine_execlists *execlists, > > > > +trace_ports(const struct intel_engine_cs *engine, > > > > + const struct intel_engine_execlists *execlists, > > > > const char *msg, > > > > struct i915_request * const *ports) > > > > { > > > > - const struct intel_engine_cs *engine = > > > > - container_of(execlists, typeof(*engine), execlists); > > > > char __maybe_unused p0[40], p1[40]; > > > > if (!ports[0]) > > > > @@ -738,25 +738,24 @@ trace_ports(const struct intel_engine_execlists *execlists, > > > > } > > > > static bool > > > > -reset_in_progress(const struct intel_engine_execlists *execlists) > > > > +reset_in_progress(const struct intel_engine_cs *engine) > > > > { > > > > - return unlikely(!__tasklet_is_enabled(&execlists->tasklet)); > > > > + return unlikely(!__tasklet_is_enabled(&engine->sched_engine->tasklet)); > > > > } > > > > static __maybe_unused noinline bool > > > > -assert_pending_valid(const struct intel_engine_execlists *execlists, > > > > +assert_pending_valid(struct intel_engine_cs *engine, > > > > + const struct intel_engine_execlists *execlists, > > > > const char *msg) > > > > { > > > > - struct intel_engine_cs *engine = > > > > - container_of(execlists, typeof(*engine), execlists); > > > > struct i915_request * const *port, *rq, *prev = NULL; > > > > struct intel_context *ce = NULL; > > > > u32 ccid = -1; > > > > - trace_ports(execlists, msg, execlists->pending); > > > > + trace_ports(engine, execlists, msg, execlists->pending); > > > > /* We may be messing around with the lists during reset, lalala */ > > > > - if (reset_in_progress(execlists)) > > > > + if (reset_in_progress(engine)) > > > > return true; > > > > if (!execlists->pending[0]) { > > > > @@ -878,7 +877,7 @@ static void execlists_submit_ports(struct intel_engine_cs *engine) > > > > struct intel_engine_execlists *execlists = &engine->execlists; > > > > unsigned int n; > > > > - GEM_BUG_ON(!assert_pending_valid(execlists, "submit")); > > > > + GEM_BUG_ON(!assert_pending_valid(engine, execlists, "submit")); > > > > /* > > > > * We can skip acquiring intel_runtime_pm_get() here as it was taken > > > > @@ -1096,7 +1095,8 @@ static void defer_active(struct intel_engine_cs *engine) > > > > if (!rq) > > > > return; > > > > - defer_request(rq, i915_sched_lookup_priolist(engine, rq_prio(rq))); > > > > + defer_request(rq, i915_sched_lookup_priolist(engine->sched_engine, > > > > + rq_prio(rq))); > > > > } > > > > static bool > > > > @@ -1133,13 +1133,14 @@ static bool needs_timeslice(const struct intel_engine_cs *engine, > > > > return false; > > > > /* If ELSP[1] is occupied, always check to see if worth slicing */ > > > > - if (!list_is_last_rcu(&rq->sched.link, &engine->active.requests)) { > > > > + if (!list_is_last_rcu(&rq->sched.link, > > > > + &engine->sched_engine->requests)) { > > > > ENGINE_TRACE(engine, "timeslice required for second inflight context\n"); > > > > return true; > > > > } > > > > /* Otherwise, ELSP[0] is by itself, but may be waiting in the queue */ > > > > - if (!RB_EMPTY_ROOT(&engine->execlists.queue.rb_root)) { > > > > + if (!i915_sched_engine_is_empty(engine->sched_engine)) { > > > > ENGINE_TRACE(engine, "timeslice required for queue\n"); > > > > return true; > > > > } > > > > @@ -1187,7 +1188,7 @@ static void start_timeslice(struct intel_engine_cs *engine) > > > > * its timeslice, so recheck. > > > > */ > > > > if (!timer_pending(&el->timer)) > > > > - tasklet_hi_schedule(&el->tasklet); > > > > + i915_sched_engine_hi_kick(engine->sched_engine); > > > > return; > > > > } > > > > @@ -1235,6 +1236,7 @@ static bool completed(const struct i915_request *rq) > > > > static void execlists_dequeue(struct intel_engine_cs *engine) > > > > { > > > > + struct i915_sched_engine * const sched_engine = engine->sched_engine; > > > > struct intel_engine_execlists * const execlists = &engine->execlists; > > > > struct i915_request **port = execlists->pending; > > > > struct i915_request ** const last_port = port + execlists->port_mask; > > > > @@ -1265,7 +1267,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > > > > * and context switches) submission. > > > > */ > > > > - spin_lock(&engine->active.lock); > > > > + spin_lock(&engine->sched_engine->lock); > > > > /* > > > > * If the queue is higher priority than the last > > > > @@ -1287,7 +1289,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > > > > last->fence.context, > > > > last->fence.seqno, > > > > last->sched.attr.priority, > > > > - execlists->queue_priority_hint); > > > > + sched_engine->queue_priority_hint); > > > > record_preemption(execlists); > > > > /* > > > > @@ -1313,7 +1315,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > > > > yesno(timer_expired(&execlists->timer)), > > > > last->fence.context, last->fence.seqno, > > > > rq_prio(last), > > > > - execlists->queue_priority_hint, > > > > + sched_engine->queue_priority_hint, > > > > yesno(timeslice_yield(execlists, last))); > > > > /* > > > > @@ -1365,7 +1367,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > > > > * Even if ELSP[1] is occupied and not worthy > > > > * of timeslices, our queue might be. > > > > */ > > > > - spin_unlock(&engine->active.lock); > > > > + spin_unlock(&sched_engine->lock); > > > > return; > > > > } > > > > } > > > > @@ -1375,7 +1377,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > > > > while ((ve = first_virtual_engine(engine))) { > > > > struct i915_request *rq; > > > > - spin_lock(&ve->base.active.lock); > > > > + spin_lock(&ve->base.sched_engine->lock); > > > > rq = ve->request; > > > > if (unlikely(!virtual_matches(ve, rq, engine))) > > > > @@ -1384,14 +1386,14 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > > > > GEM_BUG_ON(rq->engine != &ve->base); > > > > GEM_BUG_ON(rq->context != &ve->context); > > > > - if (unlikely(rq_prio(rq) < queue_prio(execlists))) { > > > > - spin_unlock(&ve->base.active.lock); > > > > + if (unlikely(rq_prio(rq) < queue_prio(sched_engine))) { > > > > + spin_unlock(&ve->base.sched_engine->lock); > > > > break; > > > > } > > > > if (last && !can_merge_rq(last, rq)) { > > > > - spin_unlock(&ve->base.active.lock); > > > > - spin_unlock(&engine->active.lock); > > > > + spin_unlock(&ve->base.sched_engine->lock); > > > > + spin_unlock(&sched_engine->lock); > > > > return; /* leave this for another sibling */ > > > > } > > > > @@ -1405,7 +1407,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > > > > yesno(engine != ve->siblings[0])); > > > > WRITE_ONCE(ve->request, NULL); > > > > - WRITE_ONCE(ve->base.execlists.queue_priority_hint, INT_MIN); > > > > + WRITE_ONCE(ve->base.sched_engine->queue_priority_hint, INT_MIN); > > > > rb = &ve->nodes[engine->id].rb; > > > > rb_erase_cached(rb, &execlists->virtual); > > > > @@ -1437,7 +1439,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > > > > i915_request_put(rq); > > > > unlock: > > > > - spin_unlock(&ve->base.active.lock); > > > > + spin_unlock(&ve->base.sched_engine->lock); > > > > /* > > > > * Hmm, we have a bunch of virtual engine requests, > > > > @@ -1450,7 +1452,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > > > > break; > > > > } > > > > - while ((rb = rb_first_cached(&execlists->queue))) { > > > > + while ((rb = rb_first_cached(&sched_engine->queue))) { > > > > struct i915_priolist *p = to_priolist(rb); > > > > struct i915_request *rq, *rn; > > > > @@ -1529,7 +1531,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > > > > } > > > > } > > > > - rb_erase_cached(&p->node, &execlists->queue); > > > > + rb_erase_cached(&p->node, &sched_engine->queue); > > > > i915_priolist_free(p); > > > > } > > > > done: > > > > @@ -1551,8 +1553,9 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > > > > * request triggering preemption on the next dequeue (or subsequent > > > > * interrupt for secondary ports). > > > > */ > > > > - execlists->queue_priority_hint = queue_prio(execlists); > > > > - spin_unlock(&engine->active.lock); > > > > + sched_engine->queue_priority_hint = queue_prio(sched_engine); > > > > + i915_sched_engine_reset_on_empty(sched_engine); > > > > + spin_unlock(&sched_engine->lock); > > > > /* > > > > * We can skip poking the HW if we ended up with exactly the same set > > > > @@ -1767,8 +1770,8 @@ process_csb(struct intel_engine_cs *engine, struct i915_request **inactive) > > > > * 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)); > > > > + GEM_BUG_ON(!tasklet_is_locked(&engine->sched_engine->tasklet) && > > > > + !reset_in_progress(engine)); > > > > /* > > > > * Note that csb_write, csb_status may be either in HWSP or mmio. > > > > @@ -1866,12 +1869,12 @@ process_csb(struct intel_engine_cs *engine, struct i915_request **inactive) > > > > smp_wmb(); /* notify execlists_active() */ > > > > /* cancel old inflight, prepare for switch */ > > > > - trace_ports(execlists, "preempted", old); > > > > + trace_ports(engine, execlists, "preempted", old); > > > > while (*old) > > > > *inactive++ = *old++; > > > > /* switch pending to inflight */ > > > > - GEM_BUG_ON(!assert_pending_valid(execlists, "promote")); > > > > + GEM_BUG_ON(!assert_pending_valid(engine, execlists, "promote")); > > > > copy_ports(execlists->inflight, > > > > execlists->pending, > > > > execlists_num_ports(execlists)); > > > > @@ -1889,7 +1892,7 @@ process_csb(struct intel_engine_cs *engine, struct i915_request **inactive) > > > > } > > > > /* port0 completed, advanced to port1 */ > > > > - trace_ports(execlists, "completed", execlists->active); > > > > + trace_ports(engine, execlists, "completed", execlists->active); > > > > /* > > > > * We rely on the hardware being strongly > > > > @@ -1979,7 +1982,7 @@ static void __execlists_hold(struct i915_request *rq) > > > > __i915_request_unsubmit(rq); > > > > clear_bit(I915_FENCE_FLAG_PQUEUE, &rq->fence.flags); > > > > - list_move_tail(&rq->sched.link, &rq->engine->active.hold); > > > > + list_move_tail(&rq->sched.link, &rq->engine->sched_engine->hold); > > > > i915_request_set_hold(rq); > > > > RQ_TRACE(rq, "on hold\n"); > > > > @@ -2016,7 +2019,7 @@ static bool execlists_hold(struct intel_engine_cs *engine, > > > > if (i915_request_on_hold(rq)) > > > > return false; > > > > - spin_lock_irq(&engine->active.lock); > > > > + spin_lock_irq(&engine->sched_engine->lock); > > > > if (__i915_request_is_complete(rq)) { /* too late! */ > > > > rq = NULL; > > > > @@ -2032,10 +2035,10 @@ static bool execlists_hold(struct intel_engine_cs *engine, > > > > GEM_BUG_ON(i915_request_on_hold(rq)); > > > > GEM_BUG_ON(rq->engine != engine); > > > > __execlists_hold(rq); > > > > - GEM_BUG_ON(list_empty(&engine->active.hold)); > > > > + GEM_BUG_ON(list_empty(&engine->sched_engine->hold)); > > > > unlock: > > > > - spin_unlock_irq(&engine->active.lock); > > > > + spin_unlock_irq(&engine->sched_engine->lock); > > > > return rq; > > > > } > > > > @@ -2079,7 +2082,7 @@ static void __execlists_unhold(struct i915_request *rq) > > > > i915_request_clear_hold(rq); > > > > list_move_tail(&rq->sched.link, > > > > - i915_sched_lookup_priolist(rq->engine, > > > > + i915_sched_lookup_priolist(rq->engine->sched_engine, > > > > rq_prio(rq))); > > > > set_bit(I915_FENCE_FLAG_PQUEUE, &rq->fence.flags); > > > > @@ -2115,7 +2118,7 @@ static void __execlists_unhold(struct i915_request *rq) > > > > static void execlists_unhold(struct intel_engine_cs *engine, > > > > struct i915_request *rq) > > > > { > > > > - spin_lock_irq(&engine->active.lock); > > > > + spin_lock_irq(&engine->sched_engine->lock); > > > > /* > > > > * Move this request back to the priority queue, and all of its > > > > @@ -2123,12 +2126,12 @@ static void execlists_unhold(struct intel_engine_cs *engine, > > > > */ > > > > __execlists_unhold(rq); > > > > - if (rq_prio(rq) > engine->execlists.queue_priority_hint) { > > > > - engine->execlists.queue_priority_hint = rq_prio(rq); > > > > - tasklet_hi_schedule(&engine->execlists.tasklet); > > > > + if (rq_prio(rq) > engine->sched_engine->queue_priority_hint) { > > > > + engine->sched_engine->queue_priority_hint = rq_prio(rq); > > > > + i915_sched_engine_hi_kick(engine->sched_engine); > > > > } > > > > - spin_unlock_irq(&engine->active.lock); > > > > + spin_unlock_irq(&engine->sched_engine->lock); > > > > } > > > > struct execlists_capture { > > > > @@ -2258,13 +2261,13 @@ static void execlists_capture(struct intel_engine_cs *engine) > > > > if (!cap) > > > > return; > > > > - spin_lock_irq(&engine->active.lock); > > > > + spin_lock_irq(&engine->sched_engine->lock); > > > > cap->rq = active_context(engine, active_ccid(engine)); > > > > if (cap->rq) { > > > > cap->rq = active_request(cap->rq->context->timeline, cap->rq); > > > > cap->rq = i915_request_get_rcu(cap->rq); > > > > } > > > > - spin_unlock_irq(&engine->active.lock); > > > > + spin_unlock_irq(&engine->sched_engine->lock); > > > > if (!cap->rq) > > > > goto err_free; > > > > @@ -2316,13 +2319,13 @@ static void execlists_reset(struct intel_engine_cs *engine, const char *msg) > > > > 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(&engine->sched_engine->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(&engine->sched_engine->tasklet); > > > > clear_and_wake_up_bit(bit, lock); > > > > } > > > > @@ -2345,8 +2348,9 @@ 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); > > > > + struct i915_sched_engine *sched_engine = > > > > + from_tasklet(sched_engine, t, tasklet); > > > > + struct intel_engine_cs * const engine = sched_engine->engine; > > > > struct i915_request *post[2 * EXECLIST_MAX_PORTS]; > > > > struct i915_request **inactive; > > > > @@ -2421,13 +2425,16 @@ 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); > > > > + i915_sched_engine_hi_kick(engine->sched_engine); > > > > } > > > > static void __execlists_kick(struct intel_engine_execlists *execlists) > > > > { > > > > + struct intel_engine_cs *engine = > > > > + container_of(execlists, typeof(*engine), execlists); > > > > + > > > > /* Kick the tasklet for some interrupt coalescing and reset handling */ > > > > - tasklet_hi_schedule(&execlists->tasklet); > > > > + i915_sched_engine_hi_kick(engine->sched_engine); > > > > } > > > > #define execlists_kick(t, member) \ > > > > @@ -2448,19 +2455,20 @@ static void queue_request(struct intel_engine_cs *engine, > > > > { > > > > GEM_BUG_ON(!list_empty(&rq->sched.link)); > > > > list_add_tail(&rq->sched.link, > > > > - i915_sched_lookup_priolist(engine, rq_prio(rq))); > > > > + i915_sched_lookup_priolist(engine->sched_engine, > > > > + rq_prio(rq))); > > > > set_bit(I915_FENCE_FLAG_PQUEUE, &rq->fence.flags); > > > > } > > > > static bool submit_queue(struct intel_engine_cs *engine, > > > > const struct i915_request *rq) > > > > { > > > > - struct intel_engine_execlists *execlists = &engine->execlists; > > > > + struct i915_sched_engine *sched_engine = engine->sched_engine; > > > > - if (rq_prio(rq) <= execlists->queue_priority_hint) > > > > + if (rq_prio(rq) <= sched_engine->queue_priority_hint) > > > > return false; > > > > - execlists->queue_priority_hint = rq_prio(rq); > > > > + sched_engine->queue_priority_hint = rq_prio(rq); > > > > return true; > > > > } > > > > @@ -2468,7 +2476,7 @@ static bool ancestor_on_hold(const struct intel_engine_cs *engine, > > > > const struct i915_request *rq) > > > > { > > > > GEM_BUG_ON(i915_request_on_hold(rq)); > > > > - return !list_empty(&engine->active.hold) && hold_request(rq); > > > > + return !list_empty(&engine->sched_engine->hold) && hold_request(rq); > > > > } > > > > static void execlists_submit_request(struct i915_request *request) > > > > @@ -2477,23 +2485,24 @@ static void execlists_submit_request(struct i915_request *request) > > > > unsigned long flags; > > > > /* Will be called from irq-context when using foreign fences. */ > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > if (unlikely(ancestor_on_hold(engine, request))) { > > > > RQ_TRACE(request, "ancestor on hold\n"); > > > > - list_add_tail(&request->sched.link, &engine->active.hold); > > > > + list_add_tail(&request->sched.link, > > > > + &engine->sched_engine->hold); > > > > i915_request_set_hold(request); > > > > } else { > > > > queue_request(engine, request); > > > > - GEM_BUG_ON(RB_EMPTY_ROOT(&engine->execlists.queue.rb_root)); > > > > + GEM_BUG_ON(i915_sched_engine_is_empty(engine->sched_engine)); > > > > GEM_BUG_ON(list_empty(&request->sched.link)); > > > > if (submit_queue(engine, request)) > > > > - __execlists_kick(&engine->execlists); > > > > + i915_sched_engine_hi_kick(engine->sched_engine); > > > > } > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > } > > > > static int > > > > @@ -2800,10 +2809,10 @@ 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; > > > > + struct i915_sched_engine * const sched_engine = engine->sched_engine; > > > > ENGINE_TRACE(engine, "depth<-%d\n", > > > > - atomic_read(&execlists->tasklet.count)); > > > > + atomic_read(&sched_engine->tasklet.count)); > > > > /* > > > > * Prevent request submission to the hardware until we have > > > > @@ -2814,8 +2823,8 @@ 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)); > > > > + __tasklet_disable_sync_once(&sched_engine->tasklet); > > > > + GEM_BUG_ON(!reset_in_progress(engine)); > > > > /* > > > > * We stop engines, otherwise we might get failed reset and a > > > > @@ -2957,23 +2966,25 @@ static void execlists_reset_rewind(struct intel_engine_cs *engine, bool stalled) > > > > /* Push back any incomplete requests for replay after the reset. */ > > > > rcu_read_lock(); > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > __unwind_incomplete_requests(engine); > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > rcu_read_unlock(); > > > > } > > > > static void nop_submission_tasklet(struct tasklet_struct *t) > > > > { > > > > - struct intel_engine_cs * const engine = > > > > - from_tasklet(engine, t, execlists.tasklet); > > > > + struct i915_sched_engine *sched_engine = > > > > + from_tasklet(sched_engine, t, tasklet); > > > > + struct intel_engine_cs * const engine = sched_engine->engine; > > > > /* The driver is wedged; don't process any more events. */ > > > > - WRITE_ONCE(engine->execlists.queue_priority_hint, INT_MIN); > > > > + WRITE_ONCE(engine->sched_engine->queue_priority_hint, INT_MIN); > > > > } > > > > static void execlists_reset_cancel(struct intel_engine_cs *engine) > > > > { > > > > + struct i915_sched_engine * const sched_engine = engine->sched_engine; > > > > struct intel_engine_execlists * const execlists = &engine->execlists; > > > > struct i915_request *rq, *rn; > > > > struct rb_node *rb; > > > > @@ -2998,15 +3009,15 @@ static void execlists_reset_cancel(struct intel_engine_cs *engine) > > > > execlists_reset_csb(engine, true); > > > > rcu_read_lock(); > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&sched_engine->lock, flags); > > > > /* Mark all executing requests as skipped. */ > > > > - list_for_each_entry(rq, &engine->active.requests, sched.link) > > > > + list_for_each_entry(rq, &sched_engine->requests, sched.link) > > > > i915_request_put(i915_request_mark_eio(rq)); > > > > intel_engine_signal_breadcrumbs(engine); > > > > /* Flush the queued requests to the timeline list (for retiring). */ > > > > - while ((rb = rb_first_cached(&execlists->queue))) { > > > > + while ((rb = rb_first_cached(&sched_engine->queue))) { > > > > struct i915_priolist *p = to_priolist(rb); > > > > priolist_for_each_request_consume(rq, rn, p) { > > > > @@ -3016,12 +3027,12 @@ static void execlists_reset_cancel(struct intel_engine_cs *engine) > > > > } > > > > } > > > > - rb_erase_cached(&p->node, &execlists->queue); > > > > + rb_erase_cached(&p->node, &sched_engine->queue); > > > > i915_priolist_free(p); > > > > } > > > > /* On-hold requests will be flushed to timeline upon their release */ > > > > - list_for_each_entry(rq, &engine->active.hold, sched.link) > > > > + list_for_each_entry(rq, &sched_engine->hold, sched.link) > > > > i915_request_put(i915_request_mark_eio(rq)); > > > > /* Cancel all attached virtual engines */ > > > > @@ -3032,7 +3043,7 @@ static void execlists_reset_cancel(struct intel_engine_cs *engine) > > > > rb_erase_cached(rb, &execlists->virtual); > > > > RB_CLEAR_NODE(rb); > > > > - spin_lock(&ve->base.active.lock); > > > > + spin_lock(&ve->base.sched_engine->lock); > > > > rq = fetch_and_zero(&ve->request); > > > > if (rq) { > > > > if (i915_request_mark_eio(rq)) { > > > > @@ -3042,26 +3053,26 @@ static void execlists_reset_cancel(struct intel_engine_cs *engine) > > > > } > > > > i915_request_put(rq); > > > > - ve->base.execlists.queue_priority_hint = INT_MIN; > > > > + ve->base.sched_engine->queue_priority_hint = INT_MIN; > > > > } > > > > - spin_unlock(&ve->base.active.lock); > > > > + spin_unlock(&ve->base.sched_engine->lock); > > > > } > > > > /* Remaining _unready_ requests will be nop'ed when submitted */ > > > > - execlists->queue_priority_hint = INT_MIN; > > > > - execlists->queue = RB_ROOT_CACHED; > > > > + sched_engine->queue_priority_hint = INT_MIN; > > > > + sched_engine->queue = RB_ROOT_CACHED; > > > > - GEM_BUG_ON(__tasklet_is_enabled(&execlists->tasklet)); > > > > - execlists->tasklet.callback = nop_submission_tasklet; > > > > + GEM_BUG_ON(__tasklet_is_enabled(&sched_engine->tasklet)); > > > > + sched_engine->tasklet.callback = nop_submission_tasklet; > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > rcu_read_unlock(); > > > > } > > > > static void execlists_reset_finish(struct intel_engine_cs *engine) > > > > { > > > > - struct intel_engine_execlists * const execlists = &engine->execlists; > > > > + struct i915_sched_engine * const sched_engine = engine->sched_engine; > > > > /* > > > > * After a GPU reset, we may have requests to replay. Do so now while > > > > @@ -3073,14 +3084,14 @@ 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)); > > > > + GEM_BUG_ON(!reset_in_progress(engine)); > > > > /* And kick in case we missed a new request submission. */ > > > > - if (__tasklet_enable(&execlists->tasklet)) > > > > - __execlists_kick(execlists); > > > > + if (__tasklet_enable(&sched_engine->tasklet)) > > > > + i915_sched_engine_hi_kick(sched_engine); > > > > ENGINE_TRACE(engine, "depth->%d\n", > > > > - atomic_read(&execlists->tasklet.count)); > > > > + atomic_read(&sched_engine->tasklet.count)); > > > > } > > > > static void gen8_logical_ring_enable_irq(struct intel_engine_cs *engine) > > > > @@ -3110,11 +3121,59 @@ static bool can_preempt(struct intel_engine_cs *engine) > > > > return engine->class != RENDER_CLASS; > > > > } > > > > +static void kick_execlists(const struct i915_request *rq, int prio) > > > > +{ > > > > + struct i915_sched_engine *sched_engine = rq->engine->sched_engine; > > > > + const struct i915_request *inflight; > > > > + > > > > + /* > > > > + * We only need to kick the tasklet once for the high priority > > > > + * new context we add into the queue. > > > > + */ > > > > + if (prio <= sched_engine->queue_priority_hint) > > > > + return; > > > > + > > > > + rcu_read_lock(); > > > > + > > > > + /* Nothing currently active? We're overdue for a submission! */ > > > > + inflight = execlists_active(&rq->engine->execlists); > > > > + if (!inflight) > > > > + goto unlock; > > > > + > > > > + /* > > > > + * If we are already the currently executing context, don't > > > > + * bother evaluating if we should preempt ourselves. > > > > + */ > > > > + if (inflight->context == rq->context) > > > > + goto unlock; > > > > + > > > > + ENGINE_TRACE(rq->engine, > > > > + "bumping queue-priority-hint:%d for rq:%llx:%lld, inflight:%llx:%lld prio %d\n", > > > > + prio, > > > > + rq->fence.context, rq->fence.seqno, > > > > + inflight->fence.context, inflight->fence.seqno, > > > > + inflight->sched.attr.priority); > > > > + > > > > + sched_engine->queue_priority_hint = prio; > > > > + > > > > + /* > > > > + * Allow preemption of low -> normal -> high, but we do > > > > + * not allow low priority tasks to preempt other low priority > > > > + * tasks under the impression that latency for low priority > > > > + * tasks does not matter (as much as background throughput), > > > > + * so kiss. > > > > + */ > > > > + if (prio >= max(I915_PRIORITY_NORMAL, rq_prio(inflight))) > > > > + i915_sched_engine_hi_kick(sched_engine); > > > > + > > > > +unlock: > > > > + rcu_read_unlock(); > > > > +} > > > > + > > > > static void execlists_set_default_submission(struct intel_engine_cs *engine) > > > > { > > > > engine->submit_request = execlists_submit_request; > > > > - engine->schedule = i915_schedule; > > > > - engine->execlists.tasklet.callback = execlists_submission_tasklet; > > > > + engine->sched_engine->tasklet.callback = execlists_submission_tasklet; > > > > } > > > > static void execlists_shutdown(struct intel_engine_cs *engine) > > > > @@ -3122,7 +3181,7 @@ 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); > > > > + i915_sched_engine_kill(engine->sched_engine); > > > > } > > > > static void execlists_release(struct intel_engine_cs *engine) > > > > @@ -3238,10 +3297,14 @@ int intel_execlists_submission_setup(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_engine->tasklet, > > > > + execlists_submission_tasklet); > > > > timer_setup(&engine->execlists.timer, execlists_timeslice, 0); > > > > timer_setup(&engine->execlists.preempt, execlists_preempt, 0); > > > > + engine->sched_engine->schedule = i915_schedule; > > > > + engine->sched_engine->kick_backend = kick_execlists; > > > > + > > > > logical_ring_default_vfuncs(engine); > > > > logical_ring_default_irqs(engine); > > > > @@ -3286,7 +3349,7 @@ int intel_execlists_submission_setup(struct intel_engine_cs *engine) > > > > static struct list_head *virtual_queue(struct virtual_engine *ve) > > > > { > > > > - return &ve->base.execlists.default_priolist.requests; > > > > + return &ve->base.sched_engine->default_priolist.requests; > > > > } > > > > static void rcu_virtual_context_destroy(struct work_struct *wrk) > > > > @@ -3301,7 +3364,7 @@ static void rcu_virtual_context_destroy(struct work_struct *wrk) > > > > if (unlikely(ve->request)) { > > > > struct i915_request *old; > > > > - spin_lock_irq(&ve->base.active.lock); > > > > + spin_lock_irq(&ve->base.sched_engine->lock); > > > > old = fetch_and_zero(&ve->request); > > > > if (old) { > > > > @@ -3310,7 +3373,7 @@ static void rcu_virtual_context_destroy(struct work_struct *wrk) > > > > i915_request_put(old); > > > > } > > > > - spin_unlock_irq(&ve->base.active.lock); > > > > + spin_unlock_irq(&ve->base.sched_engine->lock); > > > > } > > > > /* > > > > @@ -3320,7 +3383,7 @@ 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_engine_kill(ve->base.sched_engine); > > > > /* Decouple ourselves from the siblings, no more access allowed. */ > > > > for (n = 0; n < ve->num_siblings; n++) { > > > > @@ -3330,21 +3393,23 @@ static void rcu_virtual_context_destroy(struct work_struct *wrk) > > > > if (RB_EMPTY_NODE(node)) > > > > continue; > > > > - spin_lock_irq(&sibling->active.lock); > > > > + spin_lock_irq(&sibling->sched_engine->lock); > > > > /* Detachment is lazily performed in the execlists tasklet */ > > > > if (!RB_EMPTY_NODE(node)) > > > > rb_erase_cached(node, &sibling->execlists.virtual); > > > > - spin_unlock_irq(&sibling->active.lock); > > > > + spin_unlock_irq(&sibling->sched_engine->lock); > > > > } > > > > - GEM_BUG_ON(__tasklet_is_scheduled(&ve->base.execlists.tasklet)); > > > > + GEM_BUG_ON(__tasklet_is_scheduled(&ve->base.sched_engine->tasklet)); > > > > GEM_BUG_ON(!list_empty(virtual_queue(ve))); > > > > lrc_fini(&ve->context); > > > > intel_context_fini(&ve->context); > > > > intel_breadcrumbs_free(ve->base.breadcrumbs); > > > > + if (ve->base.sched_engine) > > > > + i915_sched_engine_put(ve->base.sched_engine); > > > > intel_engine_free_request_pool(&ve->base); > > > > kfree(ve->bonds); > > > > @@ -3475,16 +3540,18 @@ static intel_engine_mask_t virtual_submission_mask(struct virtual_engine *ve) > > > > ENGINE_TRACE(&ve->base, "rq=%llx:%lld, mask=%x, prio=%d\n", > > > > rq->fence.context, rq->fence.seqno, > > > > - mask, ve->base.execlists.queue_priority_hint); > > > > + mask, ve->base.sched_engine->queue_priority_hint); > > > > return mask; > > > > } > > > > static void virtual_submission_tasklet(struct tasklet_struct *t) > > > > { > > > > + struct i915_sched_engine *sched_engine = > > > > + from_tasklet(sched_engine, t, tasklet); > > > > struct virtual_engine * const ve = > > > > - from_tasklet(ve, t, base.execlists.tasklet); > > > > - const int prio = READ_ONCE(ve->base.execlists.queue_priority_hint); > > > > + (struct virtual_engine *)sched_engine->engine; > > > > + const int prio = READ_ONCE(ve->base.sched_engine->queue_priority_hint); > > > > intel_engine_mask_t mask; > > > > unsigned int n; > > > > @@ -3503,7 +3570,7 @@ static void virtual_submission_tasklet(struct tasklet_struct *t) > > > > if (!READ_ONCE(ve->request)) > > > > break; /* already handled by a sibling's tasklet */ > > > > - spin_lock_irq(&sibling->active.lock); > > > > + spin_lock_irq(&sibling->sched_engine->lock); > > > > if (unlikely(!(mask & sibling->mask))) { > > > > if (!RB_EMPTY_NODE(&node->rb)) { > > > > @@ -3552,11 +3619,11 @@ static void virtual_submission_tasklet(struct tasklet_struct *t) > > > > submit_engine: > > > > 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); > > > > + if (first && prio > sibling->sched_engine->queue_priority_hint) > > > > + i915_sched_engine_hi_kick(sibling->sched_engine); > > > > unlock_engine: > > > > - spin_unlock_irq(&sibling->active.lock); > > > > + spin_unlock_irq(&sibling->sched_engine->lock); > > > > if (intel_context_inflight(&ve->context)) > > > > break; > > > > @@ -3574,7 +3641,7 @@ static void virtual_submit_request(struct i915_request *rq) > > > > GEM_BUG_ON(ve->base.submit_request != virtual_submit_request); > > > > - spin_lock_irqsave(&ve->base.active.lock, flags); > > > > + spin_lock_irqsave(&ve->base.sched_engine->lock, flags); > > > > /* By the time we resubmit a request, it may be completed */ > > > > if (__i915_request_is_complete(rq)) { > > > > @@ -3588,16 +3655,16 @@ static void virtual_submit_request(struct i915_request *rq) > > > > i915_request_put(ve->request); > > > > } > > > > - ve->base.execlists.queue_priority_hint = rq_prio(rq); > > > > + ve->base.sched_engine->queue_priority_hint = rq_prio(rq); > > > > ve->request = i915_request_get(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); > > > > + i915_sched_engine_hi_kick(ve->base.sched_engine); > > > > unlock: > > > > - spin_unlock_irqrestore(&ve->base.active.lock, flags); > > > > + spin_unlock_irqrestore(&ve->base.sched_engine->lock, flags); > > > > } > > > > static struct ve_bond * > > > > @@ -3681,19 +3748,24 @@ intel_execlists_create_virtual(struct intel_engine_cs **siblings, > > > > snprintf(ve->base.name, sizeof(ve->base.name), "virtual"); > > > > - intel_engine_init_active(&ve->base, ENGINE_VIRTUAL); > > > > - intel_engine_init_execlists(&ve->base); > > > > + ve->base.sched_engine = i915_sched_engine_create(ENGINE_VIRTUAL); > > > > + if (!ve->base.sched_engine) { > > > > + kfree(ve); > > > > + return ERR_PTR(-ENOMEM); > > > > + } > > > > + ve->base.sched_engine->engine = &ve->base; > > > > ve->base.cops = &virtual_context_ops; > > > > ve->base.request_alloc = execlists_request_alloc; > > > > - ve->base.schedule = i915_schedule; > > > > + ve->base.sched_engine->schedule = i915_schedule; > > > > ve->base.submit_request = virtual_submit_request; > > > > ve->base.bond_execute = virtual_bond_execute; > > > > INIT_LIST_HEAD(virtual_queue(ve)); > > > > - ve->base.execlists.queue_priority_hint = INT_MIN; > > > > - tasklet_setup(&ve->base.execlists.tasklet, virtual_submission_tasklet); > > > > + ve->base.sched_engine->queue_priority_hint = INT_MIN; > > > > + tasklet_setup(&ve->base.sched_engine->tasklet, > > > > + virtual_submission_tasklet); > > > > intel_context_init(&ve->context, &ve->base); > > > > @@ -3721,7 +3793,7 @@ 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_engine->tasklet.callback != > > > > execlists_submission_tasklet) { > > > > err = -ENODEV; > > > > goto err_put; > > > > @@ -3756,6 +3828,9 @@ intel_execlists_create_virtual(struct intel_engine_cs **siblings, > > > > "v%dx%d", ve->base.class, count); > > > > ve->base.context_size = sibling->context_size; > > > > + ve->base.sched_engine->kick_backend = > > > > + sibling->sched_engine->kick_backend; > > > > + > > > > ve->base.emit_bb_start = sibling->emit_bb_start; > > > > ve->base.emit_flush = sibling->emit_flush; > > > > ve->base.emit_init_breadcrumb = sibling->emit_init_breadcrumb; > > > > @@ -3848,17 +3923,18 @@ void intel_execlists_show_requests(struct intel_engine_cs *engine, > > > > int indent), > > > > unsigned int max) > > > > { > > > > + const struct i915_sched_engine *sched_engine = engine->sched_engine; > > > > const struct intel_engine_execlists *execlists = &engine->execlists; > > > > struct i915_request *rq, *last; > > > > unsigned long flags; > > > > unsigned int count; > > > > struct rb_node *rb; > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > last = NULL; > > > > count = 0; > > > > - list_for_each_entry(rq, &engine->active.requests, sched.link) { > > > > + list_for_each_entry(rq, &sched_engine->requests, sched.link) { > > > > if (count++ < max - 1) > > > > show_request(m, rq, "\t\t", 0); > > > > else > > > > @@ -3873,13 +3949,13 @@ void intel_execlists_show_requests(struct intel_engine_cs *engine, > > > > show_request(m, last, "\t\t", 0); > > > > } > > > > - if (execlists->queue_priority_hint != INT_MIN) > > > > + if (sched_engine->queue_priority_hint != INT_MIN) > > > > drm_printf(m, "\t\tQueue priority hint: %d\n", > > > > - READ_ONCE(execlists->queue_priority_hint)); > > > > + READ_ONCE(sched_engine->queue_priority_hint)); > > > > last = NULL; > > > > count = 0; > > > > - for (rb = rb_first_cached(&execlists->queue); rb; rb = rb_next(rb)) { > > > > + for (rb = rb_first_cached(&sched_engine->queue); rb; rb = rb_next(rb)) { > > > > struct i915_priolist *p = rb_entry(rb, typeof(*p), node); > > > > priolist_for_each_request(rq, p) { > > > > @@ -3921,7 +3997,7 @@ void intel_execlists_show_requests(struct intel_engine_cs *engine, > > > > show_request(m, last, "\t\t", 0); > > > > } > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > } > > > > #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) > > > > diff --git a/drivers/gpu/drm/i915/gt/intel_ring_submission.c b/drivers/gpu/drm/i915/gt/intel_ring_submission.c > > > > index 2b6dffcc2262..14aa31879a37 100644 > > > > --- a/drivers/gpu/drm/i915/gt/intel_ring_submission.c > > > > +++ b/drivers/gpu/drm/i915/gt/intel_ring_submission.c > > > > @@ -339,9 +339,9 @@ static void reset_rewind(struct intel_engine_cs *engine, bool stalled) > > > > u32 head; > > > > rq = NULL; > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > rcu_read_lock(); > > > > - list_for_each_entry(pos, &engine->active.requests, sched.link) { > > > > + list_for_each_entry(pos, &engine->sched_engine->requests, sched.link) { > > > > if (!__i915_request_is_complete(pos)) { > > > > rq = pos; > > > > break; > > > > @@ -396,7 +396,7 @@ static void reset_rewind(struct intel_engine_cs *engine, bool stalled) > > > > } > > > > engine->legacy.ring->head = intel_ring_wrap(engine->legacy.ring, head); > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > } > > > > static void reset_finish(struct intel_engine_cs *engine) > > > > @@ -408,16 +408,17 @@ static void reset_cancel(struct intel_engine_cs *engine) > > > > struct i915_request *request; > > > > unsigned long flags; > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > /* Mark all submitted requests as skipped. */ > > > > - list_for_each_entry(request, &engine->active.requests, sched.link) > > > > + list_for_each_entry(request, &engine->sched_engine->requests, > > > > + sched.link) > > > > i915_request_put(i915_request_mark_eio(request)); > > > > intel_engine_signal_breadcrumbs(engine); > > > > /* Remaining _unready_ requests will be nop'ed when submitted */ > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > } > > > > static void i9xx_submit_request(struct i915_request *request) > > > > diff --git a/drivers/gpu/drm/i915/gt/mock_engine.c b/drivers/gpu/drm/i915/gt/mock_engine.c > > > > index 32589c6625e1..bd005c1b6fd5 100644 > > > > --- a/drivers/gpu/drm/i915/gt/mock_engine.c > > > > +++ b/drivers/gpu/drm/i915/gt/mock_engine.c > > > > @@ -253,10 +253,10 @@ static void mock_reset_cancel(struct intel_engine_cs *engine) > > > > del_timer_sync(&mock->hw_delay); > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > /* Mark all submitted requests as skipped. */ > > > > - list_for_each_entry(rq, &engine->active.requests, sched.link) > > > > + list_for_each_entry(rq, &engine->sched_engine->requests, sched.link) > > > > i915_request_put(i915_request_mark_eio(rq)); > > > > intel_engine_signal_breadcrumbs(engine); > > > > @@ -269,7 +269,7 @@ static void mock_reset_cancel(struct intel_engine_cs *engine) > > > > } > > > > INIT_LIST_HEAD(&mock->hw_queue); > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > } > > > > static void mock_reset_finish(struct intel_engine_cs *engine) > > > > @@ -283,6 +283,7 @@ static void mock_engine_release(struct intel_engine_cs *engine) > > > > GEM_BUG_ON(timer_pending(&mock->hw_delay)); > > > > + i915_sched_engine_put(engine->sched_engine); > > > > intel_breadcrumbs_free(engine->breadcrumbs); > > > > intel_context_unpin(engine->kernel_context); > > > > @@ -345,14 +346,18 @@ int mock_engine_init(struct intel_engine_cs *engine) > > > > { > > > > struct intel_context *ce; > > > > - intel_engine_init_active(engine, ENGINE_MOCK); > > > > + engine->sched_engine = i915_sched_engine_create(ENGINE_MOCK); > > > > + if (!engine->sched_engine) > > > > + return -ENOMEM; > > > > + engine->sched_engine->engine = engine; > > > > + > > > > intel_engine_init_execlists(engine); > > > > intel_engine_init__pm(engine); > > > > intel_engine_init_retire(engine); > > > > engine->breadcrumbs = intel_breadcrumbs_create(NULL); > > > > if (!engine->breadcrumbs) > > > > - return -ENOMEM; > > > > + goto err_schedule; > > > > ce = create_kernel_context(engine); > > > > if (IS_ERR(ce)) > > > > @@ -366,6 +371,8 @@ int mock_engine_init(struct intel_engine_cs *engine) > > > > err_breadcrumbs: > > > > intel_breadcrumbs_free(engine->breadcrumbs); > > > > +err_schedule: > > > > + i915_sched_engine_put(engine->sched_engine); > > > > return -ENOMEM; > > > > } > > > > diff --git a/drivers/gpu/drm/i915/gt/selftest_execlists.c b/drivers/gpu/drm/i915/gt/selftest_execlists.c > > > > index 1f93591a8c69..f349048ccbf6 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); > > > > + i915_sched_engine_hi_kick(engine->sched_engine); > > > > timeout += jiffies; > > > > do { > > > > @@ -273,7 +273,7 @@ static int live_unlite_restore(struct intel_gt *gt, int prio) > > > > }; > > > > /* Alternatively preempt the spinner with ce[1] */ > > > > - engine->schedule(rq[1], &attr); > > > > + engine->sched_engine->schedule(rq[1], &attr); > > > > } > > > > /* And switch back to ce[0] for good measure */ > > > > @@ -606,9 +606,9 @@ static int live_hold_reset(void *arg) > > > > err = -EBUSY; > > > > goto out; > > > > } > > > > - tasklet_disable(&engine->execlists.tasklet); > > > > + tasklet_disable(&engine->sched_engine->tasklet); > > > > - engine->execlists.tasklet.callback(&engine->execlists.tasklet); > > > > + engine->sched_engine->tasklet.callback(&engine->sched_engine->tasklet); > > > > GEM_BUG_ON(execlists_active(&engine->execlists) != rq); > > > > i915_request_get(rq); > > > > @@ -618,7 +618,7 @@ 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(&engine->sched_engine->tasklet); > > > > clear_and_wake_up_bit(I915_RESET_ENGINE + id, > > > > >->reset.flags); > > > > local_bh_enable(); > > > > @@ -900,7 +900,7 @@ release_queue(struct intel_engine_cs *engine, > > > > i915_request_add(rq); > > > > local_bh_disable(); > > > > - engine->schedule(rq, &attr); > > > > + engine->sched_engine->schedule(rq, &attr); > > > > local_bh_enable(); /* kick tasklet */ > > > > i915_request_put(rq); > > > > @@ -1183,7 +1183,7 @@ 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); > > > > + i915_sched_engine_hi_kick(engine->sched_engine); > > > > intel_engine_flush_submission(engine); > > > > } > > > > /* -> ELSP[] = { { A:rq1 }, { B:rq1 } } */ > > > > @@ -1325,7 +1325,7 @@ static int live_timeslice_queue(void *arg) > > > > err = PTR_ERR(rq); > > > > goto err_heartbeat; > > > > } > > > > - engine->schedule(rq, &attr); > > > > + engine->sched_engine->schedule(rq, &attr); > > > > err = wait_for_submit(engine, rq, HZ / 2); > > > > if (err) { > > > > pr_err("%s: Timed out trying to submit semaphores\n", > > > > @@ -1867,7 +1867,7 @@ static int live_late_preempt(void *arg) > > > > } > > > > attr.priority = I915_PRIORITY_MAX; > > > > - engine->schedule(rq, &attr); > > > > + engine->sched_engine->schedule(rq, &attr); > > > > if (!igt_wait_for_spinner(&spin_hi, rq)) { > > > > pr_err("High priority context failed to preempt the low priority context\n"); > > > > @@ -2480,7 +2480,7 @@ static int live_suppress_self_preempt(void *arg) > > > > i915_request_add(rq_b); > > > > GEM_BUG_ON(i915_request_completed(rq_a)); > > > > - engine->schedule(rq_a, &attr); > > > > + engine->sched_engine->schedule(rq_a, &attr); > > > > igt_spinner_end(&a.spin); > > > > if (!igt_wait_for_spinner(&b.spin, rq_b)) { > > > > @@ -2612,7 +2612,7 @@ static int live_chain_preempt(void *arg) > > > > i915_request_get(rq); > > > > i915_request_add(rq); > > > > - engine->schedule(rq, &attr); > > > > + engine->sched_engine->schedule(rq, &attr); > > > > igt_spinner_end(&hi.spin); > > > > if (i915_request_wait(rq, 0, HZ / 5) < 0) { > > > > @@ -2971,7 +2971,7 @@ static int live_preempt_gang(void *arg) > > > > break; > > > > /* Submit each spinner at increasing priority */ > > > > - engine->schedule(rq, &attr); > > > > + engine->sched_engine->schedule(rq, &attr); > > > > } while (prio <= I915_PRIORITY_MAX && > > > > !__igt_timeout(end_time, NULL)); > > > > pr_debug("%s: Preempt chain of %d requests\n", > > > > @@ -3219,7 +3219,7 @@ static int preempt_user(struct intel_engine_cs *engine, > > > > i915_request_get(rq); > > > > i915_request_add(rq); > > > > - engine->schedule(rq, &attr); > > > > + engine->sched_engine->schedule(rq, &attr); > > > > if (i915_request_wait(rq, 0, HZ / 2) < 0) > > > > err = -ETIME; > > > > @@ -4593,15 +4593,15 @@ static int reset_virtual_engine(struct intel_gt *gt, > > > > err = -EBUSY; > > > > goto out_heartbeat; > > > > } > > > > - tasklet_disable(&engine->execlists.tasklet); > > > > + tasklet_disable(&engine->sched_engine->tasklet); > > > > - engine->execlists.tasklet.callback(&engine->execlists.tasklet); > > > > + engine->sched_engine->tasklet.callback(&engine->sched_engine->tasklet); > > > > GEM_BUG_ON(execlists_active(&engine->execlists) != rq); > > > > /* Fake a preemption event; failed of course */ > > > > - spin_lock_irq(&engine->active.lock); > > > > + spin_lock_irq(&engine->sched_engine->lock); > > > > __unwind_incomplete_requests(engine); > > > > - spin_unlock_irq(&engine->active.lock); > > > > + spin_unlock_irq(&engine->sched_engine->lock); > > > > GEM_BUG_ON(rq->engine != engine); > > > > /* Reset the engine while keeping our active request on hold */ > > > > @@ -4612,7 +4612,7 @@ 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(&engine->sched_engine->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 5b63d4df8c93..cbcb800e2ca0 100644 > > > > --- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c > > > > +++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c > > > > @@ -858,12 +858,12 @@ static int active_engine(void *data) > > > > rq[idx] = i915_request_get(new); > > > > i915_request_add(new); > > > > - if (engine->schedule && arg->flags & TEST_PRIORITY) { > > > > + if (engine->sched_engine->schedule && arg->flags & TEST_PRIORITY) { > > > > struct i915_sched_attr attr = { > > > > .priority = > > > > i915_prandom_u32_max_state(512, &prng), > > > > }; > > > > - engine->schedule(rq[idx], &attr); > > > > + engine->sched_engine->schedule(rq[idx], &attr); > > > > } > > > > err = active_request_put(old); > > > > @@ -1702,7 +1702,7 @@ 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 = &engine->sched_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 d8f6623524e8..5b40def7cd9d 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); > > > > + i915_sched_engine_hi_kick(engine->sched_engine); > > > > timeout += jiffies; > > > > do { > > > > @@ -1613,12 +1613,12 @@ static void garbage_reset(struct intel_engine_cs *engine, > > > > local_bh_disable(); > > > > if (!test_and_set_bit(bit, lock)) { > > > > - tasklet_disable(&engine->execlists.tasklet); > > > > + tasklet_disable(&engine->sched_engine->tasklet); > > > > if (!rq->fence.error) > > > > __intel_engine_reset_bh(engine, NULL); > > > > - tasklet_enable(&engine->execlists.tasklet); > > > > + tasklet_enable(&engine->sched_engine->tasklet); > > > > clear_and_wake_up_bit(bit, lock); > > > > } > > > > local_bh_enable(); > > > > diff --git a/drivers/gpu/drm/i915/gt/selftest_reset.c b/drivers/gpu/drm/i915/gt/selftest_reset.c > > > > index 8784257ec808..7a50c9f4071b 100644 > > > > --- a/drivers/gpu/drm/i915/gt/selftest_reset.c > > > > +++ b/drivers/gpu/drm/i915/gt/selftest_reset.c > > > > @@ -321,7 +321,7 @@ 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 = &engine->sched_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 335719f17490..068e5de27e31 100644 > > > > --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c > > > > +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c > > > > @@ -181,6 +181,7 @@ static void schedule_out(struct i915_request *rq) > > > > static void __guc_dequeue(struct intel_engine_cs *engine) > > > > { > > > > + struct i915_sched_engine * const sched_engine = engine->sched_engine; > > > > struct intel_engine_execlists * const execlists = &engine->execlists; > > > > struct i915_request **first = execlists->inflight; > > > > struct i915_request ** const last_port = first + execlists->port_mask; > > > > @@ -189,7 +190,7 @@ static void __guc_dequeue(struct intel_engine_cs *engine) > > > > bool submit = false; > > > > struct rb_node *rb; > > > > - lockdep_assert_held(&engine->active.lock); > > > > + lockdep_assert_held(&engine->sched_engine->lock); > > > > if (last) { > > > > if (*++first) > > > > @@ -204,7 +205,7 @@ static void __guc_dequeue(struct intel_engine_cs *engine) > > > > * event. > > > > */ > > > > port = first; > > > > - while ((rb = rb_first_cached(&execlists->queue))) { > > > > + while ((rb = rb_first_cached(&sched_engine->queue))) { > > > > struct i915_priolist *p = to_priolist(rb); > > > > struct i915_request *rq, *rn; > > > > @@ -224,11 +225,11 @@ static void __guc_dequeue(struct intel_engine_cs *engine) > > > > last = rq; > > > > } > > > > - rb_erase_cached(&p->node, &execlists->queue); > > > > + rb_erase_cached(&p->node, &sched_engine->queue); > > > > i915_priolist_free(p); > > > > } > > > > done: > > > > - execlists->queue_priority_hint = > > > > + sched_engine->queue_priority_hint = > > > > rb ? to_priolist(rb)->priority : INT_MIN; > > > > if (submit) { > > > > *port = schedule_in(last, port - execlists->inflight); > > > > @@ -240,13 +241,14 @@ static void __guc_dequeue(struct intel_engine_cs *engine) > > > > static void guc_submission_tasklet(struct tasklet_struct *t) > > > > { > > > > - struct intel_engine_cs * const engine = > > > > - from_tasklet(engine, t, execlists.tasklet); > > > > + struct i915_sched_engine *sched_engine = > > > > + from_tasklet(sched_engine, t, tasklet); > > > > + struct intel_engine_cs * const engine = sched_engine->engine; > > > > struct intel_engine_execlists * const execlists = &engine->execlists; > > > > struct i915_request **port, *rq; > > > > unsigned long flags; > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > for (port = execlists->inflight; (rq = *port); port++) { > > > > if (!i915_request_completed(rq)) > > > > @@ -262,20 +264,22 @@ static void guc_submission_tasklet(struct tasklet_struct *t) > > > > __guc_dequeue(engine); > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + i915_sched_engine_reset_on_empty(engine->sched_engine); > > > > + > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > } > > > > 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); > > > > + i915_sched_engine_hi_kick(engine->sched_engine); > > > > } > > > > } > > > > static void guc_reset_prepare(struct intel_engine_cs *engine) > > > > { > > > > - struct intel_engine_execlists * const execlists = &engine->execlists; > > > > + struct i915_sched_engine * const sched_engine = engine->sched_engine; > > > > ENGINE_TRACE(engine, "\n"); > > > > @@ -283,12 +287,12 @@ static void guc_reset_prepare(struct intel_engine_cs *engine) > > > > * Prevent request submission to the hardware until we have > > > > * completed the reset in i915_gem_reset_finish(). If a request > > > > * is completed by one engine, it may then queue a request > > > > - * to a second via its execlists->tasklet *just* as we are > > > > + * to a second via its sched_engine->tasklet *just* as we are > > > > * calling engine->init_hw() and also writing the ELSP. > > > > - * Turning off the execlists->tasklet until the reset is over > > > > + * Turning off the sched_engine->tasklet until the reset is over > > > > * prevents the race. > > > > */ > > > > - __tasklet_disable_sync_once(&execlists->tasklet); > > > > + __tasklet_disable_sync_once(&sched_engine->tasklet); > > > > } > > > > static void guc_reset_state(struct intel_context *ce, > > > > @@ -319,7 +323,7 @@ static void guc_reset_rewind(struct intel_engine_cs *engine, bool stalled) > > > > struct i915_request *rq; > > > > unsigned long flags; > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > /* Push back any incomplete requests for replay after the reset. */ > > > > rq = execlists_unwind_incomplete_requests(execlists); > > > > @@ -333,12 +337,12 @@ static void guc_reset_rewind(struct intel_engine_cs *engine, bool stalled) > > > > guc_reset_state(rq->context, engine, rq->head, stalled); > > > > out_unlock: > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > } > > > > static void guc_reset_cancel(struct intel_engine_cs *engine) > > > > { > > > > - struct intel_engine_execlists * const execlists = &engine->execlists; > > > > + struct i915_sched_engine * const sched_engine = engine->sched_engine; > > > > struct i915_request *rq, *rn; > > > > struct rb_node *rb; > > > > unsigned long flags; > > > > @@ -359,16 +363,16 @@ static void guc_reset_cancel(struct intel_engine_cs *engine) > > > > * submission's irq state, we also wish to remind ourselves that > > > > * it is irq state.) > > > > */ > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > /* Mark all executing requests as skipped. */ > > > > - list_for_each_entry(rq, &engine->active.requests, sched.link) { > > > > + list_for_each_entry(rq, &engine->sched_engine->requests, sched.link) { > > > > i915_request_set_error_once(rq, -EIO); > > > > i915_request_mark_complete(rq); > > > > } > > > > /* Flush the queued requests to the timeline list (for retiring). */ > > > > - while ((rb = rb_first_cached(&execlists->queue))) { > > > > + while ((rb = rb_first_cached(&sched_engine->queue))) { > > > > struct i915_priolist *p = to_priolist(rb); > > > > priolist_for_each_request_consume(rq, rn, p) { > > > > @@ -378,28 +382,28 @@ static void guc_reset_cancel(struct intel_engine_cs *engine) > > > > i915_request_mark_complete(rq); > > > > } > > > > - rb_erase_cached(&p->node, &execlists->queue); > > > > + rb_erase_cached(&p->node, &sched_engine->queue); > > > > i915_priolist_free(p); > > > > } > > > > /* Remaining _unready_ requests will be nop'ed when submitted */ > > > > - execlists->queue_priority_hint = INT_MIN; > > > > - execlists->queue = RB_ROOT_CACHED; > > > > + sched_engine->queue_priority_hint = INT_MIN; > > > > + sched_engine->queue = RB_ROOT_CACHED; > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > } > > > > static void guc_reset_finish(struct intel_engine_cs *engine) > > > > { > > > > - struct intel_engine_execlists * const execlists = &engine->execlists; > > > > + struct i915_sched_engine * const sched_engine = engine->sched_engine; > > > > - if (__tasklet_enable(&execlists->tasklet)) > > > > + if (__tasklet_enable(&sched_engine->tasklet)) > > > > /* And kick in case we missed a new request submission. */ > > > > - tasklet_hi_schedule(&execlists->tasklet); > > > > + i915_sched_engine_hi_kick(sched_engine); > > > > ENGINE_TRACE(engine, "depth->%d\n", > > > > - atomic_read(&execlists->tasklet.count)); > > > > + atomic_read(&sched_engine->tasklet.count)); > > > > } > > > > /* > > > > @@ -526,7 +530,7 @@ static inline void queue_request(struct intel_engine_cs *engine, > > > > { > > > > GEM_BUG_ON(!list_empty(&rq->sched.link)); > > > > list_add_tail(&rq->sched.link, > > > > - i915_sched_lookup_priolist(engine, prio)); > > > > + i915_sched_lookup_priolist(engine->sched_engine, prio)); > > > > set_bit(I915_FENCE_FLAG_PQUEUE, &rq->fence.flags); > > > > } > > > > @@ -536,16 +540,16 @@ static void guc_submit_request(struct i915_request *rq) > > > > unsigned long flags; > > > > /* Will be called from irq-context when using foreign fences. */ > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > queue_request(engine, rq, rq_prio(rq)); > > > > - GEM_BUG_ON(RB_EMPTY_ROOT(&engine->execlists.queue.rb_root)); > > > > + GEM_BUG_ON(i915_sched_engine_is_empty(engine->sched_engine)); > > > > GEM_BUG_ON(list_empty(&rq->sched.link)); > > > > - tasklet_hi_schedule(&engine->execlists.tasklet); > > > > + i915_sched_engine_hi_kick(engine->sched_engine); > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > } > > > > static void sanitize_hwsp(struct intel_engine_cs *engine) > > > > @@ -623,7 +627,7 @@ static void guc_release(struct intel_engine_cs *engine) > > > > { > > > > engine->sanitize = NULL; /* no longer in control, nothing to sanitize */ > > > > - tasklet_kill(&engine->execlists.tasklet); > > > > + tasklet_kill(&engine->sched_engine->tasklet); > > > > intel_engine_cleanup_common(engine); > > > > lrc_fini_wa_ctx(engine); > > > > @@ -638,7 +642,7 @@ static void guc_default_vfuncs(struct intel_engine_cs *engine) > > > > engine->cops = &guc_context_ops; > > > > engine->request_alloc = guc_request_alloc; > > > > - engine->schedule = i915_schedule; > > > > + engine->sched_engine->schedule = i915_schedule; > > > > engine->reset.prepare = guc_reset_prepare; > > > > engine->reset.rewind = guc_reset_rewind; > > > > @@ -702,7 +706,8 @@ 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_engine->tasklet, guc_submission_tasklet); > > > > + engine->sched_engine->schedule = i915_schedule; > > > > guc_default_vfuncs(engine); > > > > guc_default_irqs(engine); > > > > diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c > > > > index 8b964e355cb5..dea8eb5cd3fa 100644 > > > > --- a/drivers/gpu/drm/i915/i915_gpu_error.c > > > > +++ b/drivers/gpu/drm/i915/i915_gpu_error.c > > > > @@ -1242,7 +1242,8 @@ static void record_request(const struct i915_request *request, > > > > static void engine_record_execlists(struct intel_engine_coredump *ee) > > > > { > > > > - const struct intel_engine_execlists * const el = &ee->engine->execlists; > > > > + const struct intel_engine_execlists * const el = > > > > + &ee->engine->execlists; > > > > struct i915_request * const *port = el->active; > > > > unsigned int n = 0; > > > > @@ -1436,12 +1437,12 @@ capture_engine(struct intel_engine_cs *engine, > > > > if (!ee) > > > > return NULL; > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > rq = intel_engine_find_active_request(engine); > > > > if (rq) > > > > capture = intel_engine_coredump_add_request(ee, rq, > > > > ATOMIC_MAYFAIL); > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > if (!capture) { > > > > kfree(ee); > > > > return NULL; > > > > diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c > > > > index 970d8f4986bb..4c0df56e3b86 100644 > > > > --- a/drivers/gpu/drm/i915/i915_request.c > > > > +++ b/drivers/gpu/drm/i915/i915_request.c > > > > @@ -272,11 +272,11 @@ i915_request_active_engine(struct i915_request *rq, > > > > * check that we have acquired the lock on the final engine. > > > > */ > > > > locked = READ_ONCE(rq->engine); > > > > - spin_lock_irq(&locked->active.lock); > > > > + spin_lock_irq(&locked->sched_engine->lock); > > > > while (unlikely(locked != (engine = READ_ONCE(rq->engine)))) { > > > > - spin_unlock(&locked->active.lock); > > > > + spin_unlock(&locked->sched_engine->lock); > > > > locked = engine; > > > > - spin_lock(&locked->active.lock); > > > > + spin_lock(&locked->sched_engine->lock); > > > > } > > > > if (i915_request_is_active(rq)) { > > > > @@ -285,7 +285,7 @@ i915_request_active_engine(struct i915_request *rq, > > > > ret = true; > > > > } > > > > - spin_unlock_irq(&locked->active.lock); > > > > + spin_unlock_irq(&locked->sched_engine->lock); > > > > return ret; > > > > } > > > > @@ -302,10 +302,10 @@ static void remove_from_engine(struct i915_request *rq) > > > > * check that the rq still belongs to the newly locked engine. > > > > */ > > > > locked = READ_ONCE(rq->engine); > > > > - spin_lock_irq(&locked->active.lock); > > > > + spin_lock_irq(&locked->sched_engine->lock); > > > > while (unlikely(locked != (engine = READ_ONCE(rq->engine)))) { > > > > - spin_unlock(&locked->active.lock); > > > > - spin_lock(&engine->active.lock); > > > > + spin_unlock(&locked->sched_engine->lock); > > > > + spin_lock(&engine->sched_engine->lock); > > > > locked = engine; > > > > } > > > > list_del_init(&rq->sched.link); > > > > @@ -316,7 +316,7 @@ static void remove_from_engine(struct i915_request *rq) > > > > /* Prevent further __await_execution() registering a cb, then flush */ > > > > set_bit(I915_FENCE_FLAG_ACTIVE, &rq->fence.flags); > > > > - spin_unlock_irq(&locked->active.lock); > > > > + spin_unlock_irq(&locked->sched_engine->lock); > > > > __notify_execute_cb_imm(rq); > > > > } > > > > @@ -481,7 +481,7 @@ static bool __request_in_flight(const struct i915_request *signal) > > > > * may either perform a context switch to the second inflight execlists, > > > > * or it may switch to the pending set of execlists. In the case of the > > > > * latter, it may send the ACK and we process the event copying the > > > > - * pending[] over top of inflight[], _overwriting_ our *active. Since > > > > + * pending[] over top of inflight[], _overwriting_ our *active-> Since > > > > * this implies the HW is arbitrating and not struck in *active, we do > > > > * not worry about complete accuracy, but we do require no read/write > > > > * tearing of the pointer [the read of the pointer must be valid, even > > > > @@ -490,7 +490,7 @@ static bool __request_in_flight(const struct i915_request *signal) > > > > * > > > > * Note that the read of *execlists->active may race with the promotion > > > > * of execlists->pending[] to execlists->inflight[], overwritting > > > > - * the value at *execlists->active. This is fine. The promotion implies > > > > + * the value at *execlists->active-> This is fine. The promotion implies > > > > * that we received an ACK from the HW, and so the context is not > > > > * stuck -- if we do not see ourselves in *active, the inflight status > > > > * is valid. If instead we see ourselves being copied into *active, > > > > @@ -545,7 +545,7 @@ __await_execution(struct i915_request *rq, > > > > /* > > > > * Register the callback first, then see if the signaler is already > > > > - * active. This ensures that if we race with the > > > > + * active-> This ensures that if we race with the > > > > * __notify_execute_cb from i915_request_submit() and we are not > > > > * included in that list, we get a second bite of the cherry and > > > > * execute it ourselves. After this point, a future > > > > @@ -637,7 +637,7 @@ bool __i915_request_submit(struct i915_request *request) > > > > RQ_TRACE(request, "\n"); > > > > GEM_BUG_ON(!irqs_disabled()); > > > > - lockdep_assert_held(&engine->active.lock); > > > > + lockdep_assert_held(&engine->sched_engine->lock); > > > > /* > > > > * With the advent of preempt-to-busy, we frequently encounter > > > > @@ -649,9 +649,9 @@ bool __i915_request_submit(struct i915_request *request) > > > > * > > > > * We must remove the request from the caller's priority queue, > > > > * and the caller must only call us when the request is in their > > > > - * priority queue, under the active.lock. This ensures that the > > > > + * priority queue, under the active->lock. This ensures that the > > > > * request has *not* yet been retired and we can safely move > > > > - * the request into the engine->active.list where it will be > > > > + * the request into the engine->sched_engine->list where it will be > > > > * dropped upon retiring. (Otherwise if resubmit a *retired* > > > > * request, this would be a horrible use-after-free.) > > > > */ > > > > @@ -694,7 +694,7 @@ bool __i915_request_submit(struct i915_request *request) > > > > result = true; > > > > GEM_BUG_ON(test_bit(I915_FENCE_FLAG_ACTIVE, &request->fence.flags)); > > > > - list_move_tail(&request->sched.link, &engine->active.requests); > > > > + list_move_tail(&request->sched.link, &engine->sched_engine->requests); > > > > active: > > > > clear_bit(I915_FENCE_FLAG_PQUEUE, &request->fence.flags); > > > > set_bit(I915_FENCE_FLAG_ACTIVE, &request->fence.flags); > > > > @@ -724,11 +724,11 @@ void i915_request_submit(struct i915_request *request) > > > > unsigned long flags; > > > > /* Will be called from irq-context when using foreign fences. */ > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > __i915_request_submit(request); > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > } > > > > void __i915_request_unsubmit(struct i915_request *request) > > > > @@ -742,7 +742,7 @@ void __i915_request_unsubmit(struct i915_request *request) > > > > RQ_TRACE(request, "\n"); > > > > GEM_BUG_ON(!irqs_disabled()); > > > > - lockdep_assert_held(&engine->active.lock); > > > > + lockdep_assert_held(&engine->sched_engine->lock); > > > > /* > > > > * Before we remove this breadcrumb from the signal list, we have > > > > @@ -775,11 +775,11 @@ void i915_request_unsubmit(struct i915_request *request) > > > > unsigned long flags; > > > > /* Will be called from irq-context when using foreign fences. */ > > > > - spin_lock_irqsave(&engine->active.lock, flags); > > > > + spin_lock_irqsave(&engine->sched_engine->lock, flags); > > > > __i915_request_unsubmit(request); > > > > - spin_unlock_irqrestore(&engine->active.lock, flags); > > > > + spin_unlock_irqrestore(&engine->sched_engine->lock, flags); > > > > } > > > > static void __cancel_request(struct i915_request *rq) > > > > @@ -1343,7 +1343,7 @@ __i915_request_await_execution(struct i915_request *to, > > > > } > > > > /* Couple the dependency tree for PI on this exposed to->fence */ > > > > - if (to->engine->schedule) { > > > > + if (to->engine->sched_engine->schedule) { > > > > err = i915_sched_node_add_dependency(&to->sched, > > > > &from->sched, > > > > I915_DEPENDENCY_WEAK); > > > > @@ -1484,7 +1484,7 @@ i915_request_await_request(struct i915_request *to, struct i915_request *from) > > > > return 0; > > > > } > > > > - if (to->engine->schedule) { > > > > + if (to->engine->sched_engine->schedule) { > > > > ret = i915_sched_node_add_dependency(&to->sched, > > > > &from->sched, > > > > I915_DEPENDENCY_EXTERNAL); > > > > @@ -1671,7 +1671,7 @@ __i915_request_add_to_timeline(struct i915_request *rq) > > > > __i915_sw_fence_await_dma_fence(&rq->submit, > > > > &prev->fence, > > > > &rq->dmaq); > > > > - if (rq->engine->schedule) > > > > + if (rq->engine->sched_engine->schedule) > > > > __i915_sched_node_add_dependency(&rq->sched, > > > > &prev->sched, > > > > &rq->dep, > > > > @@ -1743,8 +1743,8 @@ void __i915_request_queue(struct i915_request *rq, > > > > * decide whether to preempt the entire chain so that it is ready to > > > > * run at the earliest possible convenience. > > > > */ > > > > - if (attr && rq->engine->schedule) > > > > - rq->engine->schedule(rq, attr); > > > > + if (attr && rq->engine->sched_engine->schedule) > > > > + rq->engine->sched_engine->schedule(rq, attr); > > > > local_bh_disable(); > > > > __i915_request_queue_bh(rq); > > > > diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h > > > > index 270f6cd37650..239964bec1fa 100644 > > > > --- a/drivers/gpu/drm/i915/i915_request.h > > > > +++ b/drivers/gpu/drm/i915/i915_request.h > > > > @@ -613,7 +613,7 @@ i915_request_active_timeline(const struct i915_request *rq) > > > > * this submission. > > > > */ > > > > return rcu_dereference_protected(rq->timeline, > > > > - lockdep_is_held(&rq->engine->active.lock)); > > > > + lockdep_is_held(&rq->engine->sched_engine->lock)); > > > > } > > > > static inline u32 > > > > diff --git a/drivers/gpu/drm/i915/i915_scheduler.c b/drivers/gpu/drm/i915/i915_scheduler.c > > > > index efa638c3acc7..28d403a8d7d2 100644 > > > > --- a/drivers/gpu/drm/i915/i915_scheduler.c > > > > +++ b/drivers/gpu/drm/i915/i915_scheduler.c > > > > @@ -40,7 +40,7 @@ static inline struct i915_priolist *to_priolist(struct rb_node *rb) > > > > return rb_entry(rb, struct i915_priolist, node); > > > > } > > > > -static void assert_priolists(struct intel_engine_execlists * const execlists) > > > > +static void assert_priolists(struct i915_sched_engine * const sched_engine) > > > > { > > > > struct rb_node *rb; > > > > long last_prio; > > > > @@ -48,11 +48,11 @@ static void assert_priolists(struct intel_engine_execlists * const execlists) > > > > if (!IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)) > > > > return; > > > > - GEM_BUG_ON(rb_first_cached(&execlists->queue) != > > > > - rb_first(&execlists->queue.rb_root)); > > > > + GEM_BUG_ON(rb_first_cached(&sched_engine->queue) != > > > > + rb_first(&sched_engine->queue.rb_root)); > > > > last_prio = INT_MAX; > > > > - for (rb = rb_first_cached(&execlists->queue); rb; rb = rb_next(rb)) { > > > > + for (rb = rb_first_cached(&sched_engine->queue); rb; rb = rb_next(rb)) { > > > > const struct i915_priolist *p = to_priolist(rb); > > > > GEM_BUG_ON(p->priority > last_prio); > > > > @@ -61,23 +61,22 @@ static void assert_priolists(struct intel_engine_execlists * const execlists) > > > > } > > > > struct list_head * > > > > -i915_sched_lookup_priolist(struct intel_engine_cs *engine, int prio) > > > > +i915_sched_lookup_priolist(struct i915_sched_engine *sched_engine, int prio) > > > > { > > > > - struct intel_engine_execlists * const execlists = &engine->execlists; > > > > struct i915_priolist *p; > > > > struct rb_node **parent, *rb; > > > > bool first = true; > > > > - lockdep_assert_held(&engine->active.lock); > > > > - assert_priolists(execlists); > > > > + lockdep_assert_held(&sched_engine->lock); > > > > + assert_priolists(sched_engine); > > > > - if (unlikely(execlists->no_priolist)) > > > > + if (unlikely(sched_engine->no_priolist)) > > > > prio = I915_PRIORITY_NORMAL; > > > > find_priolist: > > > > /* most positive priority is scheduled first, equal priorities fifo */ > > > > rb = NULL; > > > > - parent = &execlists->queue.rb_root.rb_node; > > > > + parent = &sched_engine->queue.rb_root.rb_node; > > > > while (*parent) { > > > > rb = *parent; > > > > p = to_priolist(rb); > > > > @@ -92,7 +91,7 @@ i915_sched_lookup_priolist(struct intel_engine_cs *engine, int prio) > > > > } > > > > if (prio == I915_PRIORITY_NORMAL) { > > > > - p = &execlists->default_priolist; > > > > + p = &sched_engine->default_priolist; > > > > } else { > > > > p = kmem_cache_alloc(global.slab_priorities, GFP_ATOMIC); > > > > /* Convert an allocation failure to a priority bump */ > > > > @@ -107,7 +106,7 @@ i915_sched_lookup_priolist(struct intel_engine_cs *engine, int prio) > > > > * requests, so if userspace lied about their > > > > * dependencies that reordering may be visible. > > > > */ > > > > - execlists->no_priolist = true; > > > > + sched_engine->no_priolist = true; > > > > goto find_priolist; > > > > } > > > > } > > > > @@ -116,7 +115,7 @@ i915_sched_lookup_priolist(struct intel_engine_cs *engine, int prio) > > > > INIT_LIST_HEAD(&p->requests); > > > > rb_link_node(&p->node, rb, parent); > > > > - rb_insert_color_cached(&p->node, &execlists->queue, first); > > > > + rb_insert_color_cached(&p->node, &sched_engine->queue, first); > > > > return &p->requests; > > > > } > > > > @@ -130,13 +129,13 @@ struct sched_cache { > > > > struct list_head *priolist; > > > > }; > > > > -static struct intel_engine_cs * > > > > -sched_lock_engine(const struct i915_sched_node *node, > > > > - struct intel_engine_cs *locked, > > > > +static struct i915_sched_engine * > > > > +lock_sched_engine(struct i915_sched_node *node, > > > > + struct i915_sched_engine *locked, > > > > struct sched_cache *cache) > > > > { > > > > const struct i915_request *rq = node_to_request(node); > > > > - struct intel_engine_cs *engine; > > > > + struct i915_sched_engine *sched_engine; > > > > GEM_BUG_ON(!locked); > > > > @@ -146,81 +145,22 @@ sched_lock_engine(const struct i915_sched_node *node, > > > > * engine lock. The simple ploy we use is to take the lock then > > > > * check that the rq still belongs to the newly locked engine. > > > > */ > > > > - while (locked != (engine = READ_ONCE(rq->engine))) { > > > > - spin_unlock(&locked->active.lock); > > > > + while (locked != (sched_engine = rq->engine->sched_engine)) { > > > > + spin_unlock(&locked->lock); > > > > memset(cache, 0, sizeof(*cache)); > > > > - spin_lock(&engine->active.lock); > > > > - locked = engine; > > > > + spin_lock(&sched_engine->lock); > > > > + locked = sched_engine; > > > > } > > > > - GEM_BUG_ON(locked != engine); > > > > + GEM_BUG_ON(locked != sched_engine); > > > > return locked; > > > > } > > > > -static inline int rq_prio(const struct i915_request *rq) > > > > -{ > > > > - return rq->sched.attr.priority; > > > > -} > > > > - > > > > -static inline bool need_preempt(int prio, int active) > > > > -{ > > > > - /* > > > > - * Allow preemption of low -> normal -> high, but we do > > > > - * not allow low priority tasks to preempt other low priority > > > > - * tasks under the impression that latency for low priority > > > > - * tasks does not matter (as much as background throughput), > > > > - * so kiss. > > > > - */ > > > > - return prio >= max(I915_PRIORITY_NORMAL, active); > > > > -} > > > > - > > > > -static void kick_submission(struct intel_engine_cs *engine, > > > > - const struct i915_request *rq, > > > > - int prio) > > > > -{ > > > > - const struct i915_request *inflight; > > > > - > > > > - /* > > > > - * We only need to kick the tasklet once for the high priority > > > > - * new context we add into the queue. > > > > - */ > > > > - if (prio <= engine->execlists.queue_priority_hint) > > > > - return; > > > > - > > > > - rcu_read_lock(); > > > > - > > > > - /* Nothing currently active? We're overdue for a submission! */ > > > > - inflight = execlists_active(&engine->execlists); > > > > - if (!inflight) > > > > - goto unlock; > > > > - > > > > - /* > > > > - * If we are already the currently executing context, don't > > > > - * bother evaluating if we should preempt ourselves. > > > > - */ > > > > - if (inflight->context == rq->context) > > > > - goto unlock; > > > > - > > > > - ENGINE_TRACE(engine, > > > > - "bumping queue-priority-hint:%d for rq:%llx:%lld, inflight:%llx:%lld prio %d\n", > > > > - prio, > > > > - rq->fence.context, rq->fence.seqno, > > > > - inflight->fence.context, inflight->fence.seqno, > > > > - inflight->sched.attr.priority); > > > > - > > > > - engine->execlists.queue_priority_hint = prio; > > > > - if (need_preempt(prio, rq_prio(inflight))) > > > > - tasklet_hi_schedule(&engine->execlists.tasklet); > > > > - > > > > -unlock: > > > > - rcu_read_unlock(); > > > > -} > > > > - > > > > static void __i915_schedule(struct i915_sched_node *node, > > > > const struct i915_sched_attr *attr) > > > > { > > > > const int prio = max(attr->priority, node->attr.priority); > > > > - struct intel_engine_cs *engine; > > > > + struct i915_sched_engine *sched_engine; > > > > struct i915_dependency *dep, *p; > > > > struct i915_dependency stack; > > > > struct sched_cache cache; > > > > @@ -295,23 +235,24 @@ static void __i915_schedule(struct i915_sched_node *node, > > > > } > > > > memset(&cache, 0, sizeof(cache)); > > > > - engine = node_to_request(node)->engine; > > > > - spin_lock(&engine->active.lock); > > > > + sched_engine = node_to_request(node)->engine->sched_engine; > > > > + spin_lock(&sched_engine->lock); > > > > /* Fifo and depth-first replacement ensure our deps execute before us */ > > > > - engine = sched_lock_engine(node, engine, &cache); > > > > + sched_engine = lock_sched_engine(node, sched_engine, &cache); > > > > list_for_each_entry_safe_reverse(dep, p, &dfs, dfs_link) { > > > > INIT_LIST_HEAD(&dep->dfs_link); > > > > node = dep->signaler; > > > > - engine = sched_lock_engine(node, engine, &cache); > > > > - lockdep_assert_held(&engine->active.lock); > > > > + sched_engine = lock_sched_engine(node, sched_engine, &cache); > > > > + lockdep_assert_held(&sched_engine->lock); > > > > /* Recheck after acquiring the engine->timeline.lock */ > > > > if (prio <= node->attr.priority || node_signaled(node)) > > > > continue; > > > > - GEM_BUG_ON(node_to_request(node)->engine != engine); > > > > + GEM_BUG_ON(node_to_request(node)->engine->sched_engine != > > > > + sched_engine); > > > > WRITE_ONCE(node->attr.priority, prio); > > > > @@ -329,16 +270,17 @@ static void __i915_schedule(struct i915_sched_node *node, > > > > if (i915_request_in_priority_queue(node_to_request(node))) { > > > > if (!cache.priolist) > > > > cache.priolist = > > > > - i915_sched_lookup_priolist(engine, > > > > + i915_sched_lookup_priolist(sched_engine, > > > > prio); > > > > list_move_tail(&node->link, cache.priolist); > > > > } > > > > /* Defer (tasklet) submission until after all of our updates. */ > > > > - kick_submission(engine, node_to_request(node), prio); > > > > + if (sched_engine->kick_backend) > > > > + sched_engine->kick_backend(node_to_request(node), prio); > > > > } > > > > - spin_unlock(&engine->active.lock); > > > > + spin_unlock(&sched_engine->lock); > > > > } > > > > void i915_schedule(struct i915_request *rq, const struct i915_sched_attr *attr) > > > > @@ -489,6 +431,50 @@ void i915_request_show_with_schedule(struct drm_printer *m, > > > > rcu_read_unlock(); > > > > } > > > > +void i915_sched_engine_free(struct kref *kref) > > > > +{ > > > > + struct i915_sched_engine *sched_engine = > > > > + container_of(kref, typeof(*sched_engine), ref); > > > > + > > > > + i915_sched_engine_kill(sched_engine); /* flush the callback */ > > > > + kfree(sched_engine); > > > > +} > > > > + > > > > +struct i915_sched_engine * > > > > +i915_sched_engine_create(unsigned int subclass) > > > > +{ > > > > + struct i915_sched_engine *sched_engine; > > > > + > > > > + sched_engine = kzalloc(sizeof(*sched_engine), GFP_KERNEL); > > > > + if (!sched_engine) > > > > + return NULL; > > > > + > > > > + kref_init(&sched_engine->ref); > > > > + > > > > + sched_engine->queue = RB_ROOT_CACHED; > > > > + sched_engine->queue_priority_hint = INT_MIN; > > > > + > > > > + INIT_LIST_HEAD(&sched_engine->requests); > > > > + INIT_LIST_HEAD(&sched_engine->hold); > > > > + > > > > + spin_lock_init(&sched_engine->lock); > > > > + lockdep_set_subclass(&sched_engine->lock, subclass); > > > > + > > > > + /* > > > > + * Due to an interesting quirk in lockdep's internal debug tracking, > > > > + * after setting a subclass we must ensure the lock is used. Otherwise, > > > > + * nr_unused_locks is incremented once too often. > > > > + */ > > > > +#ifdef CONFIG_DEBUG_LOCK_ALLOC > > > > + local_irq_disable(); > > > > + lock_map_acquire(&sched_engine->lock.dep_map); > > > > + lock_map_release(&sched_engine->lock.dep_map); > > > > + local_irq_enable(); > > > > +#endif > > > > + > > > > + return sched_engine; > > > > +} > > > > + > > > > static void i915_global_scheduler_shrink(void) > > > > { > > > > kmem_cache_shrink(global.slab_dependencies); > > > > diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h > > > > index 858a0938f47a..a78b1f50ecb4 100644 > > > > --- a/drivers/gpu/drm/i915/i915_scheduler.h > > > > +++ b/drivers/gpu/drm/i915/i915_scheduler.h > > > > @@ -39,7 +39,7 @@ void i915_schedule(struct i915_request *request, > > > > const struct i915_sched_attr *attr); > > > > struct list_head * > > > > -i915_sched_lookup_priolist(struct intel_engine_cs *engine, int prio); > > > > +i915_sched_lookup_priolist(struct i915_sched_engine *sched_engine, int prio); > > > > void __i915_priolist_free(struct i915_priolist *p); > > > > static inline void i915_priolist_free(struct i915_priolist *p) > > > > @@ -53,4 +53,67 @@ void i915_request_show_with_schedule(struct drm_printer *m, > > > > const char *prefix, > > > > int indent); > > > > +struct i915_sched_engine * > > > > +i915_sched_engine_create(unsigned int subclass); > > > > + > > > > +void i915_sched_engine_free(struct kref *kref); > > > > + > > > > +static inline struct i915_sched_engine * > > > > +i915_sched_engine_get(struct i915_sched_engine *sched_engine) > > > > +{ > > > > + kref_get(&sched_engine->ref); > > > > + return sched_engine; > > > > +} > > > > + > > > > +static inline void > > > > +i915_sched_engine_put(struct i915_sched_engine *sched_engine) > > > > +{ > > > > + kref_put(&sched_engine->ref, i915_sched_engine_free); > > > > +} > > > > + > > > > +static inline bool > > > > +i915_sched_engine_is_empty(struct i915_sched_engine *sched_engine) > > > > +{ > > > > + return RB_EMPTY_ROOT(&sched_engine->queue.rb_root); > > > > +} > > > > + > > > > +static inline void > > > > +i915_sched_engine_reset_on_empty(struct i915_sched_engine *sched_engine) > > > > +{ > > > > + if (i915_sched_engine_is_empty(sched_engine)) > > > > + sched_engine->no_priolist = false; > > > > +} > > > > + > > > > +static inline void > > > > +i915_sched_engine_hi_kick(struct i915_sched_engine *sched_engine) > > > > +{ > > > > + tasklet_hi_schedule(&sched_engine->tasklet); > > > > +} > > > > + > > > > +static inline void > > > > +i915_sched_engine_kick(struct i915_sched_engine *sched_engine) > > > > +{ > > > > + tasklet_schedule(&sched_engine->tasklet); > > > > +} > > > > + > > > > +static inline void > > > > +i915_sched_engine_kill(struct i915_sched_engine *sched_engine) > > > > +{ > > > > + tasklet_kill(&sched_engine->tasklet); > > > > +} > > > > + > > > > +static inline void > > > > +sched_engine_active_lock_bh(struct i915_sched_engine *sched_engine) > > > > +{ > > > > + local_bh_disable(); /* prevent local softirq and lock recursion */ > > > > + tasklet_lock(&sched_engine->tasklet); > > > > +} > > > > + > > > > +static inline void > > > > +sched_engine_active_unlock_bh(struct i915_sched_engine *sched_engine) > > > > +{ > > > > + tasklet_unlock(&sched_engine->tasklet); > > > > + local_bh_enable(); /* restore softirq, and kick ksoftirqd! */ > > > > +} > > > > + > > > > #endif /* _I915_SCHEDULER_H_ */ > > > > diff --git a/drivers/gpu/drm/i915/i915_scheduler_types.h b/drivers/gpu/drm/i915/i915_scheduler_types.h > > > > index 343ed44d5ed4..90b389ba661b 100644 > > > > --- a/drivers/gpu/drm/i915/i915_scheduler_types.h > > > > +++ b/drivers/gpu/drm/i915/i915_scheduler_types.h > > > > @@ -91,4 +91,67 @@ struct i915_dependency { > > > > &(rq__)->sched.signalers_list, \ > > > > signal_link) > > > > +struct i915_sched_engine { > > > > + struct kref ref; > > > > + > > > > + /* > > > > + * @lock: Protects requests in priority lists, requests, hold, and > > > > + * tasklet while running. > > > > + */ > > > > + spinlock_t lock; > > > > + > > > > + /* Execlist specific lists, needed here as protected by lock */ > > > > + struct list_head requests; > > > > + struct list_head hold; /* ready requests, but on hold */ > > > > + > > > > + /** > > > > + * @tasklet: softirq tasklet for bottom handler > > > > + */ > > > > + struct tasklet_struct tasklet; > > > > + > > > > + /** > > > > + * @default_priolist: priority list for I915_PRIORITY_NORMAL > > > > + */ > > > > + struct i915_priolist default_priolist; > > > > + > > > > + /** > > > > + * @queue_priority_hint: Highest pending priority. > > > > + * > > > > + * When we add requests into the queue, or adjust the priority of > > > > + * executing requests, we compute the maximum priority of those > > > > + * pending requests. We can then use this value to determine if > > > > + * we need to preempt the executing requests to service the queue. > > > > + * However, since the we may have recorded the priority of an inflight > > > > + * request we wanted to preempt but since completed, at the time of > > > > + * dequeuing the priority hint may no longer may match the highest > > > > + * available request priority. > > > > + */ > > > > + int queue_priority_hint; > > > > + > > > > + /** > > > > + * @queue: queue of requests, in priority lists > > > > + */ > > > > + struct rb_root_cached queue; > > > > + > > > > + /** > > > > + * @no_priolist: priority lists disabled > > > > + */ > > > > + bool no_priolist; > > > > + > > > > + /* Back pointer to engine */ > > > > + struct intel_engine_cs *engine; > > > > + > > > > + /* Kick backend */ > > > > + void (*kick_backend)(const struct i915_request *rq, > > > > + int prio); > > > > + > > > > + /* > > > > + * Call when the priority on a request has changed and it and its > > > > + * dependencies may need rescheduling. Note the request itself may > > > > + * not be ready to run! > > > > + */ > > > > + void (*schedule)(struct i915_request *request, > > > > + const struct i915_sched_attr *attr); > > > > +}; > > > > + > > > > #endif /* _I915_SCHEDULER_TYPES_H_ */ > > > > > > > > -- > Daniel Vetter > Software Engineer, Intel Corporation > http://blog.ffwll.ch
