Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Chris Wilson | 1550 | 74.70% | 85 | 71.43% |
Maarten Lankhorst | 247 | 11.90% | 6 | 5.04% |
Matthew Brost | 154 | 7.42% | 5 | 4.20% |
Tvrtko A. Ursulin | 28 | 1.35% | 8 | 6.72% |
Oscar Mateo | 15 | 0.72% | 1 | 0.84% |
Michał Winiarski | 15 | 0.72% | 1 | 0.84% |
Eric Anholt | 14 | 0.67% | 2 | 1.68% |
Jesse Barnes | 10 | 0.48% | 1 | 0.84% |
Thomas Daniel | 10 | 0.48% | 1 | 0.84% |
Kees Cook | 9 | 0.43% | 1 | 0.84% |
Mika Kuoppala | 7 | 0.34% | 2 | 1.68% |
Akash Goel | 6 | 0.29% | 1 | 0.84% |
Dan Carpenter | 4 | 0.19% | 2 | 1.68% |
Thomas Hellstrom | 3 | 0.14% | 1 | 0.84% |
Daniel Vetter | 2 | 0.10% | 1 | 0.84% |
Sebastian Andrzej Siewior | 1 | 0.05% | 1 | 0.84% |
Total | 2075 | 119 |
// SPDX-License-Identifier: MIT /* * Copyright © 2016 Intel Corporation */ #include "gem/i915_gem_context.h" #include "gt/intel_ring.h" #include "i915_drv.h" #include "intel_context.h" #include "intel_engine_pm.h" #include "mock_engine.h" #include "selftests/mock_request.h" static int mock_timeline_pin(struct intel_timeline *tl) { int err; if (WARN_ON(!i915_gem_object_trylock(tl->hwsp_ggtt->obj, NULL))) return -EBUSY; err = intel_timeline_pin_map(tl); i915_gem_object_unlock(tl->hwsp_ggtt->obj); if (err) return err; atomic_inc(&tl->pin_count); return 0; } static void mock_timeline_unpin(struct intel_timeline *tl) { GEM_BUG_ON(!atomic_read(&tl->pin_count)); atomic_dec(&tl->pin_count); } static struct i915_vma *create_ring_vma(struct i915_ggtt *ggtt, int size) { struct i915_address_space *vm = &ggtt->vm; struct drm_i915_private *i915 = vm->i915; struct drm_i915_gem_object *obj; struct i915_vma *vma; obj = i915_gem_object_create_internal(i915, size); if (IS_ERR(obj)) return ERR_CAST(obj); vma = i915_vma_instance(obj, vm, NULL); if (IS_ERR(vma)) goto err; return vma; err: i915_gem_object_put(obj); return vma; } static struct intel_ring *mock_ring(struct intel_engine_cs *engine) { const unsigned long sz = PAGE_SIZE; struct intel_ring *ring; ring = kzalloc(sizeof(*ring) + sz, GFP_KERNEL); if (!ring) return NULL; kref_init(&ring->ref); ring->size = sz; ring->effective_size = sz; ring->vaddr = (void *)(ring + 1); atomic_set(&ring->pin_count, 1); ring->vma = create_ring_vma(engine->gt->ggtt, PAGE_SIZE); if (IS_ERR(ring->vma)) { kfree(ring); return NULL; } intel_ring_update_space(ring); return ring; } static void mock_ring_free(struct intel_ring *ring) { i915_vma_put(ring->vma); kfree(ring); } static struct i915_request *first_request(struct mock_engine *engine) { return list_first_entry_or_null(&engine->hw_queue, struct i915_request, mock.link); } static void advance(struct i915_request *request) { list_del_init(&request->mock.link); i915_request_mark_complete(request); GEM_BUG_ON(!i915_request_completed(request)); intel_engine_signal_breadcrumbs(request->engine); } static void hw_delay_complete(struct timer_list *t) { struct mock_engine *engine = from_timer(engine, t, hw_delay); struct i915_request *request; unsigned long flags; spin_lock_irqsave(&engine->hw_lock, flags); /* Timer fired, first request is complete */ request = first_request(engine); if (request) advance(request); /* * Also immediately signal any subsequent 0-delay requests, but * requeue the timer for the next delayed request. */ while ((request = first_request(engine))) { if (request->mock.delay) { mod_timer(&engine->hw_delay, jiffies + request->mock.delay); break; } advance(request); } spin_unlock_irqrestore(&engine->hw_lock, flags); } static void mock_context_unpin(struct intel_context *ce) { } static void mock_context_post_unpin(struct intel_context *ce) { i915_vma_unpin(ce->ring->vma); } static void mock_context_destroy(struct kref *ref) { struct intel_context *ce = container_of(ref, typeof(*ce), ref); GEM_BUG_ON(intel_context_is_pinned(ce)); if (test_bit(CONTEXT_ALLOC_BIT, &ce->flags)) { mock_ring_free(ce->ring); mock_timeline_unpin(ce->timeline); } intel_context_fini(ce); intel_context_free(ce); } static int mock_context_alloc(struct intel_context *ce) { int err; ce->ring = mock_ring(ce->engine); if (!ce->ring) return -ENOMEM; ce->timeline = intel_timeline_create(ce->engine->gt); if (IS_ERR(ce->timeline)) { kfree(ce->engine); return PTR_ERR(ce->timeline); } err = mock_timeline_pin(ce->timeline); if (err) { intel_timeline_put(ce->timeline); ce->timeline = NULL; return err; } return 0; } static int mock_context_pre_pin(struct intel_context *ce, struct i915_gem_ww_ctx *ww, void **unused) { return i915_vma_pin_ww(ce->ring->vma, ww, 0, 0, PIN_GLOBAL | PIN_HIGH); } static int mock_context_pin(struct intel_context *ce, void *unused) { return 0; } static void mock_context_reset(struct intel_context *ce) { } static const struct intel_context_ops mock_context_ops = { .alloc = mock_context_alloc, .pre_pin = mock_context_pre_pin, .pin = mock_context_pin, .unpin = mock_context_unpin, .post_unpin = mock_context_post_unpin, .enter = intel_context_enter_engine, .exit = intel_context_exit_engine, .reset = mock_context_reset, .destroy = mock_context_destroy, }; static int mock_request_alloc(struct i915_request *request) { INIT_LIST_HEAD(&request->mock.link); request->mock.delay = 0; return 0; } static int mock_emit_flush(struct i915_request *request, unsigned int flags) { return 0; } static u32 *mock_emit_breadcrumb(struct i915_request *request, u32 *cs) { return cs; } static void mock_submit_request(struct i915_request *request) { struct mock_engine *engine = container_of(request->engine, typeof(*engine), base); unsigned long flags; i915_request_submit(request); spin_lock_irqsave(&engine->hw_lock, flags); list_add_tail(&request->mock.link, &engine->hw_queue); if (list_is_first(&request->mock.link, &engine->hw_queue)) { if (request->mock.delay) mod_timer(&engine->hw_delay, jiffies + request->mock.delay); else advance(request); } spin_unlock_irqrestore(&engine->hw_lock, flags); } static void mock_add_to_engine(struct i915_request *rq) { lockdep_assert_held(&rq->engine->sched_engine->lock); list_move_tail(&rq->sched.link, &rq->engine->sched_engine->requests); } static void mock_remove_from_engine(struct i915_request *rq) { struct intel_engine_cs *engine, *locked; /* * Virtual engines complicate acquiring the engine timeline lock, * as their rq->engine pointer is not stable until under that * engine lock. The simple ploy we use is to take the lock then * check that the rq still belongs to the newly locked engine. */ locked = READ_ONCE(rq->engine); spin_lock_irq(&locked->sched_engine->lock); while (unlikely(locked != (engine = READ_ONCE(rq->engine)))) { spin_unlock(&locked->sched_engine->lock); spin_lock(&engine->sched_engine->lock); locked = engine; } list_del_init(&rq->sched.link); spin_unlock_irq(&locked->sched_engine->lock); } static void mock_reset_prepare(struct intel_engine_cs *engine) { } static void mock_reset_rewind(struct intel_engine_cs *engine, bool stalled) { GEM_BUG_ON(stalled); } static void mock_reset_cancel(struct intel_engine_cs *engine) { struct mock_engine *mock = container_of(engine, typeof(*mock), base); struct i915_request *rq; unsigned long flags; del_timer_sync(&mock->hw_delay); spin_lock_irqsave(&engine->sched_engine->lock, flags); /* Mark all submitted requests as skipped. */ list_for_each_entry(rq, &engine->sched_engine->requests, sched.link) i915_request_put(i915_request_mark_eio(rq)); intel_engine_signal_breadcrumbs(engine); /* Cancel and submit all pending requests. */ list_for_each_entry(rq, &mock->hw_queue, mock.link) { if (i915_request_mark_eio(rq)) { __i915_request_submit(rq); i915_request_put(rq); } } INIT_LIST_HEAD(&mock->hw_queue); spin_unlock_irqrestore(&engine->sched_engine->lock, flags); } static void mock_reset_finish(struct intel_engine_cs *engine) { } static void mock_engine_release(struct intel_engine_cs *engine) { struct mock_engine *mock = container_of(engine, typeof(*mock), base); GEM_BUG_ON(timer_pending(&mock->hw_delay)); i915_sched_engine_put(engine->sched_engine); intel_breadcrumbs_put(engine->breadcrumbs); intel_context_unpin(engine->kernel_context); intel_context_put(engine->kernel_context); intel_engine_fini_retire(engine); } struct intel_engine_cs *mock_engine(struct drm_i915_private *i915, const char *name, int id) { struct mock_engine *engine; GEM_BUG_ON(id >= I915_NUM_ENGINES); GEM_BUG_ON(!to_gt(i915)->uncore); engine = kzalloc(sizeof(*engine) + PAGE_SIZE, GFP_KERNEL); if (!engine) return NULL; /* minimal engine setup for requests */ engine->base.i915 = i915; engine->base.gt = to_gt(i915); engine->base.uncore = to_gt(i915)->uncore; snprintf(engine->base.name, sizeof(engine->base.name), "%s", name); engine->base.id = id; engine->base.mask = BIT(id); engine->base.legacy_idx = INVALID_ENGINE; engine->base.instance = id; engine->base.status_page.addr = (void *)(engine + 1); engine->base.cops = &mock_context_ops; engine->base.request_alloc = mock_request_alloc; engine->base.emit_flush = mock_emit_flush; engine->base.emit_fini_breadcrumb = mock_emit_breadcrumb; engine->base.submit_request = mock_submit_request; engine->base.add_active_request = mock_add_to_engine; engine->base.remove_active_request = mock_remove_from_engine; engine->base.reset.prepare = mock_reset_prepare; engine->base.reset.rewind = mock_reset_rewind; engine->base.reset.cancel = mock_reset_cancel; engine->base.reset.finish = mock_reset_finish; engine->base.release = mock_engine_release; to_gt(i915)->engine[id] = &engine->base; to_gt(i915)->engine_class[0][id] = &engine->base; /* fake hw queue */ spin_lock_init(&engine->hw_lock); timer_setup(&engine->hw_delay, hw_delay_complete, 0); INIT_LIST_HEAD(&engine->hw_queue); intel_engine_add_user(&engine->base); return &engine->base; } int mock_engine_init(struct intel_engine_cs *engine) { struct intel_context *ce; INIT_LIST_HEAD(&engine->pinned_contexts_list); engine->sched_engine = i915_sched_engine_create(ENGINE_MOCK); if (!engine->sched_engine) return -ENOMEM; engine->sched_engine->private_data = 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) goto err_schedule; ce = create_kernel_context(engine); if (IS_ERR(ce)) goto err_breadcrumbs; /* We insist the kernel context is using the status_page */ engine->status_page.vma = ce->timeline->hwsp_ggtt; engine->kernel_context = ce; return 0; err_breadcrumbs: intel_breadcrumbs_put(engine->breadcrumbs); err_schedule: i915_sched_engine_put(engine->sched_engine); return -ENOMEM; } void mock_engine_flush(struct intel_engine_cs *engine) { struct mock_engine *mock = container_of(engine, typeof(*mock), base); struct i915_request *request, *rn; del_timer_sync(&mock->hw_delay); spin_lock_irq(&mock->hw_lock); list_for_each_entry_safe(request, rn, &mock->hw_queue, mock.link) advance(request); spin_unlock_irq(&mock->hw_lock); } void mock_engine_reset(struct intel_engine_cs *engine) { }
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