From: Chris Wilson <chris@chris-wilson.co.uk>
To: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 32/57] drm/i915: Move needs-breadcrumb flags to scheduler
Date: Thu, 04 Feb 2021 16:12:46 +0000 [thread overview]
Message-ID: <161245516616.3075.3787689019297534557@build.alporthouse.com> (raw)
In-Reply-To: <911ddc88-e105-c770-6b56-f1963144d83f@linux.intel.com>
Quoting Tvrtko Ursulin (2021-02-04 15:28:30)
>
> On 01/02/2021 08:56, Chris Wilson wrote:
> > Whether the scheduler depends on interrupt delivery for forward progress
> > is a property of the scheduler backend not of the underlying engine, so
> > move the flag from inside the engine to i915_sched_engine.
> >
> > Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> > ---
> > drivers/gpu/drm/i915/gt/intel_engine.h | 6 ++++++
> > drivers/gpu/drm/i915/gt/intel_engine_types.h | 13 +++----------
> > drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 2 +-
> > drivers/gpu/drm/i915/i915_scheduler_types.h | 7 +++++++
> > 4 files changed, 17 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h
> > index ca3a9cb06328..db5419ba1dc8 100644
> > --- a/drivers/gpu/drm/i915/gt/intel_engine.h
> > +++ b/drivers/gpu/drm/i915/gt/intel_engine.h
> > @@ -285,4 +285,10 @@ intel_engine_has_timeslices(struct intel_engine_cs *engine)
> > return i915_sched_has_timeslices(intel_engine_get_scheduler(engine));
> > }
> >
> > +static inline bool
> > +intel_engine_needs_breadcrumb_tasklet(struct intel_engine_cs *engine)
> > +{
> > + return i915_sched_needs_breadcrumb_tasklet(intel_engine_get_scheduler(engine));
> > +}
> > +
> > #endif /* _INTEL_RINGBUFFER_H_ */
> > diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
> > index 96a0aec29672..f856bd9b7dae 100644
> > --- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
> > +++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
> > @@ -442,10 +442,9 @@ struct intel_engine_cs {
> > #define I915_ENGINE_SUPPORTS_STATS BIT(1)
> > #define I915_ENGINE_HAS_PREEMPTION BIT(2)
> > #define I915_ENGINE_HAS_SEMAPHORES BIT(3)
> > -#define I915_ENGINE_NEEDS_BREADCRUMB_TASKLET BIT(4)
> > -#define I915_ENGINE_IS_VIRTUAL BIT(5)
> > -#define I915_ENGINE_HAS_RELATIVE_MMIO BIT(6)
> > -#define I915_ENGINE_REQUIRES_CMD_PARSER BIT(7)
> > +#define I915_ENGINE_IS_VIRTUAL BIT(4)
> > +#define I915_ENGINE_HAS_RELATIVE_MMIO BIT(5)
> > +#define I915_ENGINE_REQUIRES_CMD_PARSER BIT(6)
> > unsigned int flags;
> >
> > /*
> > @@ -540,12 +539,6 @@ intel_engine_has_semaphores(const struct intel_engine_cs *engine)
> > return engine->flags & I915_ENGINE_HAS_SEMAPHORES;
> > }
> >
> > -static inline bool
> > -intel_engine_needs_breadcrumb_tasklet(const struct intel_engine_cs *engine)
> > -{
> > - return engine->flags & I915_ENGINE_NEEDS_BREADCRUMB_TASKLET;
> > -}
> > -
> > static inline bool
> > intel_engine_is_virtual(const struct intel_engine_cs *engine)
> > {
> > 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 887f38fb671f..e8c66d868c59 100644
> > --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> > +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> > @@ -606,7 +606,6 @@ static void guc_default_vfuncs(struct intel_engine_cs *engine)
> > }
> > engine->set_default_submission = guc_set_default_submission;
> >
> > - engine->flags |= I915_ENGINE_NEEDS_BREADCRUMB_TASKLET;
> > engine->flags |= I915_ENGINE_HAS_PREEMPTION;
> >
> > /*
> > @@ -656,6 +655,7 @@ int intel_guc_submission_setup(struct intel_engine_cs *engine)
> >
> > tasklet_setup(&engine->sched.tasklet, guc_submission_tasklet);
> > __set_bit(I915_SCHED_ACTIVE_BIT, &engine->sched.flags);
> > + __set_bit(I915_SCHED_NEEDS_BREADCRUMB_BIT, &engine->sched.flags);
>
> Bah here my idea from earlier falls apart a bit. Don't know.
On the positive side, we've eliminated this patch by moving the
irq_handler to the engine!
-Chris
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next prev parent reply other threads:[~2021-02-04 16:12 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-01 8:56 [Intel-gfx] [PATCH 01/57] drm/i915/gt: Restrict the GT clock override to just Icelake Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 02/57] drm/i915/selftests: Exercise relative mmio paths to non-privileged registers Chris Wilson
2021-02-01 14:34 ` Mika Kuoppala
2021-02-01 8:56 ` [Intel-gfx] [PATCH 03/57] drm/i915/selftests: Exercise cross-process context isolation Chris Wilson
2021-02-01 16:37 ` Mika Kuoppala
2021-02-01 8:56 ` [Intel-gfx] [PATCH 04/57] drm/i915: Protect against request freeing during cancellation on wedging Chris Wilson
2021-02-02 9:55 ` Mika Kuoppala
2021-02-01 8:56 ` [Intel-gfx] [PATCH 05/57] drm/i915: Take rcu_read_lock for querying fence's driver/timeline names Chris Wilson
2021-02-02 18:33 ` Mika Kuoppala
2021-02-01 8:56 ` [Intel-gfx] [PATCH 06/57] drm/i915/gt: Always flush the submission queue on checking for idle Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 07/57] drm/i915/gt: Move engine setup out of set_default_submission Chris Wilson
2021-02-02 11:57 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 08/57] drm/i915/gt: Move submission_method into intel_gt Chris Wilson
2021-02-02 12:03 ` Tvrtko Ursulin
2021-02-02 12:18 ` Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 09/57] drm/i915: Replace engine->schedule() with a known request operation Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 10/57] drm/i915: Restructure priority inheritance Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 11/57] drm/i915/selftests: Measure set-priority duration Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 12/57] drm/i915/selftests: Exercise priority inheritance around an engine loop Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 13/57] drm/i915/selftests: Force a rewind if at first we don't succeed Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 14/57] drm/i915: Improve DFS for priority inheritance Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 15/57] drm/i915: Extract request submission from execlists Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 16/57] drm/i915: Extract request rewinding " Chris Wilson
2021-02-02 13:08 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 17/57] drm/i915: Extract request suspension from the execlists Chris Wilson
2021-02-02 13:15 ` Tvrtko Ursulin
2021-02-02 13:26 ` Chris Wilson
2021-02-02 13:32 ` Tvrtko Ursulin
2021-02-02 13:27 ` Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 18/57] drm/i915: Extract the ability to defer and rerun a request later Chris Wilson
2021-02-02 13:18 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 19/57] drm/i915: Fix the iterative dfs for defering requests Chris Wilson
2021-02-02 14:10 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 20/57] drm/i915: Wrap access to intel_engine.active Chris Wilson
2021-02-04 11:07 ` Tvrtko Ursulin
2021-02-04 11:18 ` Chris Wilson
2021-02-04 11:56 ` Chris Wilson
2021-02-04 12:08 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 21/57] drm/i915: Move common active lists from engine to i915_scheduler Chris Wilson
2021-02-04 11:12 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 22/57] drm/i915: Move scheduler queue Chris Wilson
2021-02-04 11:19 ` Tvrtko Ursulin
2021-02-04 11:32 ` Chris Wilson
2021-02-04 11:40 ` Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 23/57] drm/i915: Move tasklet from execlists to sched Chris Wilson
2021-02-04 14:06 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 24/57] drm/i915/gt: Only kick the scheduler on timeslice/preemption change Chris Wilson
2021-02-04 14:09 ` Tvrtko Ursulin
2021-02-04 14:43 ` Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 25/57] drm/i915: Move submit_request to i915_sched_engine Chris Wilson
2021-02-04 14:13 ` Tvrtko Ursulin
2021-02-04 14:45 ` Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 26/57] drm/i915: Move finding the current active request to the scheduler Chris Wilson
2021-02-04 14:30 ` Tvrtko Ursulin
2021-02-04 14:59 ` Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 27/57] drm/i915: Show execlists queues when dumping state Chris Wilson
2021-02-04 15:04 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 28/57] drm/i915: Wrap i915_request_use_semaphores() Chris Wilson
2021-02-04 15:05 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 29/57] drm/i915: Move scheduler flags Chris Wilson
2021-02-04 15:14 ` Tvrtko Ursulin
2021-02-04 16:05 ` Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 30/57] drm/i915: Move timeslicing flag to scheduler Chris Wilson
2021-02-04 15:18 ` Tvrtko Ursulin
2021-02-04 16:11 ` Chris Wilson
2021-02-05 9:48 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 31/57] drm/i915/gt: Declare when we enabled timeslicing Chris Wilson
2021-02-04 15:26 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 32/57] drm/i915: Move needs-breadcrumb flags to scheduler Chris Wilson
2021-02-04 15:28 ` Tvrtko Ursulin
2021-02-04 16:12 ` Chris Wilson [this message]
2021-02-01 8:56 ` [Intel-gfx] [PATCH 33/57] drm/i915: Move busywaiting control to the scheduler Chris Wilson
2021-02-04 15:32 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 34/57] drm/i915: Move preempt-reset flag " Chris Wilson
2021-02-04 15:34 ` Tvrtko Ursulin
2021-02-01 8:56 ` [Intel-gfx] [PATCH 35/57] drm/i915: Replace priolist rbtree with a skiplist Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 36/57] drm/i915: Wrap cmpxchg64 with try_cmpxchg64() helper Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 37/57] drm/i915: Fair low-latency scheduling Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 38/57] drm/i915/gt: Specify a deadline for the heartbeat Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 39/57] drm/i915: Extend the priority boosting for the display with a deadline Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 40/57] drm/i915/gt: Support virtual engine queues Chris Wilson
2021-02-01 8:56 ` [Intel-gfx] [PATCH 41/57] drm/i915: Move saturated workload detection back to the context Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 42/57] drm/i915: Bump default timeslicing quantum to 5ms Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 43/57] drm/i915/gt: Delay taking irqoff for execlists submission Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 44/57] drm/i915/gt: Wrap intel_timeline.has_initial_breadcrumb Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 45/57] drm/i915/gt: Track timeline GGTT offset separately from subpage offset Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 46/57] drm/i915/gt: Add timeline "mode" Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 47/57] drm/i915/gt: Use indices for writing into relative timelines Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 48/57] drm/i915/selftests: Exercise relative timeline modes Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 49/57] drm/i915/gt: Use ppHWSP for unshared non-semaphore related timelines Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 50/57] Restore "drm/i915: drop engine_pin/unpin_breadcrumbs_irq" Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 51/57] drm/i915/gt: Couple tasklet scheduling for all CS interrupts Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 52/57] drm/i915/gt: Support creation of 'internal' rings Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 53/57] drm/i915/gt: Use client timeline address for seqno writes Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 54/57] drm/i915/gt: Infrastructure for ring scheduling Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 55/57] drm/i915/gt: Implement ring scheduler for gen4-7 Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 56/57] drm/i915/gt: Enable ring scheduling for gen5-7 Chris Wilson
2021-02-01 8:57 ` [Intel-gfx] [PATCH 57/57] drm/i915: Support secure dispatch on gen6/gen7 Chris Wilson
2021-02-01 14:13 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [01/57] drm/i915/gt: Restrict the GT clock override to just Icelake Patchwork
2021-02-01 14:15 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-02-01 14:15 ` [Intel-gfx] [PATCH 01/57] " Mika Kuoppala
2021-02-01 14:41 ` [Intel-gfx] ✓ Fi.CI.BAT: success for series starting with [01/57] " Patchwork
2021-02-01 19:33 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
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