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drm/i915/gt: Move engine setup out of set_default_submission 

Now that we no longer switch back and forth between guc and execlists,
we no longer need to restore the backend's vfunc and can leave them set
after initialisation. The only catch is that we lose the submission on
wedging and still need to reset the submit_request vfunc on unwedging.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210521183215.65451-2-matthew.brost@intel.com
This commit is contained in:
Chris Wilson 2021-05-21 11:32:13 -07:00 committed by Daniel Vetter
parent 50c3ffb49c
commit 0db3633f61
3 changed files with 44 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
drivers/gpu/drm/i915/gt/intel_execlists_submission.c
View File

@ -3076,29 +3076,6 @@ 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->reset.prepare = execlists_reset_prepare;
engine->reset.rewind = execlists_reset_rewind;
engine->reset.cancel = execlists_reset_cancel;
engine->reset.finish = execlists_reset_finish;
engine->park = execlists_park;
engine->unpark = NULL;
engine->flags |= I915_ENGINE_SUPPORTS_STATS;
if (!intel_vgpu_active(engine->i915)) {
engine->flags |= I915_ENGINE_HAS_SEMAPHORES;
if (can_preempt(engine)) {
engine->flags |= I915_ENGINE_HAS_PREEMPTION;
if (IS_ACTIVE(CONFIG_DRM_I915_TIMESLICE_DURATION))
engine->flags |= I915_ENGINE_HAS_TIMESLICES;
}
}
if (intel_engine_has_preemption(engine))
engine->emit_bb_start = gen8_emit_bb_start;
else
engine->emit_bb_start = gen8_emit_bb_start_noarb;
}
static void execlists_shutdown(struct intel_engine_cs *engine)
@ -3129,6 +3106,14 @@ logical_ring_default_vfuncs(struct intel_engine_cs *engine)
engine->cops = &execlists_context_ops;
engine->request_alloc = execlists_request_alloc;
engine->reset.prepare = execlists_reset_prepare;
engine->reset.rewind = execlists_reset_rewind;
engine->reset.cancel = execlists_reset_cancel;
engine->reset.finish = execlists_reset_finish;
engine->park = execlists_park;
engine->unpark = NULL;
engine->emit_flush = gen8_emit_flush_xcs;
engine->emit_init_breadcrumb = gen8_emit_init_breadcrumb;
engine->emit_fini_breadcrumb = gen8_emit_fini_breadcrumb_xcs;
@ -3149,6 +3134,21 @@ logical_ring_default_vfuncs(struct intel_engine_cs *engine)
* until a more refined solution exists.
*/
}
engine->flags |= I915_ENGINE_SUPPORTS_STATS;
if (!intel_vgpu_active(engine->i915)) {
engine->flags |= I915_ENGINE_HAS_SEMAPHORES;
if (can_preempt(engine)) {
engine->flags |= I915_ENGINE_HAS_PREEMPTION;
if (IS_ACTIVE(CONFIG_DRM_I915_TIMESLICE_DURATION))
engine->flags |= I915_ENGINE_HAS_TIMESLICES;
}
}
if (intel_engine_has_preemption(engine))
engine->emit_bb_start = gen8_emit_bb_start;
else
engine->emit_bb_start = gen8_emit_bb_start_noarb;
}
static void logical_ring_default_irqs(struct intel_engine_cs *engine)

4
drivers/gpu/drm/i915/gt/intel_ring_submission.c
View File

@ -989,14 +989,10 @@ static void gen6_bsd_submit_request(struct i915_request *request)
static void i9xx_set_default_submission(struct intel_engine_cs *engine)
{
engine->submit_request = i9xx_submit_request;
engine->park = NULL;
engine->unpark = NULL;
}
static void gen6_bsd_set_default_submission(struct intel_engine_cs *engine)
{
i9xx_set_default_submission(engine);
engine->submit_request = gen6_bsd_submit_request;
}

50
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
View File

@ -608,35 +608,6 @@ static int guc_resume(struct intel_engine_cs *engine)
static void guc_set_default_submission(struct intel_engine_cs *engine)
{
engine->submit_request = guc_submit_request;
engine->schedule = i915_schedule;
engine->execlists.tasklet.callback = guc_submission_tasklet;
engine->reset.prepare = guc_reset_prepare;
engine->reset.rewind = guc_reset_rewind;
engine->reset.cancel = guc_reset_cancel;
engine->reset.finish = guc_reset_finish;
engine->flags |= I915_ENGINE_NEEDS_BREADCRUMB_TASKLET;
engine->flags |= I915_ENGINE_HAS_PREEMPTION;
/*
* TODO: GuC supports timeslicing and semaphores as well, but they're
* handled by the firmware so some minor tweaks are required before
* enabling.
*
* engine->flags |= I915_ENGINE_HAS_TIMESLICES;
* engine->flags |= I915_ENGINE_HAS_SEMAPHORES;
*/
engine->emit_bb_start = gen8_emit_bb_start;
/*
* For the breadcrumb irq to work we need the interrupts to stay
* enabled. However, on all platforms on which we'll have support for
* GuC submission we don't allow disabling the interrupts at runtime, so
* we're always safe with the current flow.
*/
GEM_BUG_ON(engine->irq_enable || engine->irq_disable);
}
static void guc_release(struct intel_engine_cs *engine)
@ -658,6 +629,13 @@ 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->reset.prepare = guc_reset_prepare;
engine->reset.rewind = guc_reset_rewind;
engine->reset.cancel = guc_reset_cancel;
engine->reset.finish = guc_reset_finish;
engine->emit_flush = gen8_emit_flush_xcs;
engine->emit_init_breadcrumb = gen8_emit_init_breadcrumb;
engine->emit_fini_breadcrumb = gen8_emit_fini_breadcrumb_xcs;
@ -666,6 +644,20 @@ static void guc_default_vfuncs(struct intel_engine_cs *engine)
engine->emit_flush = gen12_emit_flush_xcs;
}
engine->set_default_submission = guc_set_default_submission;
engine->flags |= I915_ENGINE_NEEDS_BREADCRUMB_TASKLET;
engine->flags |= I915_ENGINE_HAS_PREEMPTION;
/*
* TODO: GuC supports timeslicing and semaphores as well, but they're
* handled by the firmware so some minor tweaks are required before
* enabling.
*
* engine->flags |= I915_ENGINE_HAS_TIMESLICES;
* engine->flags |= I915_ENGINE_HAS_SEMAPHORES;
*/
engine->emit_bb_start = gen8_emit_bb_start;
}
static void rcs_submission_override(struct intel_engine_cs *engine)