Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Chris Wilson | 1034 | 67.36% | 54 | 65.06% |
Matthew Brost | 340 | 22.15% | 10 | 12.05% |
Tvrtko A. Ursulin | 84 | 5.47% | 7 | 8.43% |
Maarten Lankhorst | 26 | 1.69% | 2 | 2.41% |
Venkata Sandeep Dhanalakota | 10 | 0.65% | 1 | 1.20% |
Sebastian Andrzej Siewior | 8 | 0.52% | 1 | 1.20% |
Andrzej Hajda | 8 | 0.52% | 1 | 1.20% |
Lionel Landwerlin | 6 | 0.39% | 1 | 1.20% |
Daniel Vetter | 5 | 0.33% | 1 | 1.20% |
Thomas Daniel | 4 | 0.26% | 1 | 1.20% |
Dave Airlie | 3 | 0.20% | 1 | 1.20% |
Jani Nikula | 3 | 0.20% | 1 | 1.20% |
Michal Wajdeczko | 3 | 0.20% | 1 | 1.20% |
John Harrison | 1 | 0.07% | 1 | 1.20% |
Total | 1535 | 83 |
/* SPDX-License-Identifier: MIT */ /* * Copyright © 2019 Intel Corporation */ #ifndef __INTEL_CONTEXT_H__ #define __INTEL_CONTEXT_H__ #include <linux/bitops.h> #include <linux/lockdep.h> #include <linux/types.h> #include "i915_active.h" #include "i915_drv.h" #include "intel_context_types.h" #include "intel_engine_types.h" #include "intel_gt_pm.h" #include "intel_ring_types.h" #include "intel_timeline_types.h" #include "i915_trace.h" #define CE_TRACE(ce, fmt, ...) do { \ const struct intel_context *ce__ = (ce); \ ENGINE_TRACE(ce__->engine, "context:%llx " fmt, \ ce__->timeline->fence_context, \ ##__VA_ARGS__); \ } while (0) #define INTEL_CONTEXT_BANNED_PREEMPT_TIMEOUT_MS (1) struct i915_gem_ww_ctx; void intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine); void intel_context_fini(struct intel_context *ce); void i915_context_module_exit(void); int i915_context_module_init(void); struct intel_context * intel_context_create(struct intel_engine_cs *engine); int intel_context_alloc_state(struct intel_context *ce); void intel_context_free(struct intel_context *ce); int intel_context_reconfigure_sseu(struct intel_context *ce, const struct intel_sseu sseu); #define PARENT_SCRATCH_SIZE PAGE_SIZE static inline bool intel_context_is_child(struct intel_context *ce) { return !!ce->parallel.parent; } static inline bool intel_context_is_parent(struct intel_context *ce) { return !!ce->parallel.number_children; } static inline bool intel_context_is_pinned(struct intel_context *ce); static inline struct intel_context * intel_context_to_parent(struct intel_context *ce) { if (intel_context_is_child(ce)) { /* * The parent holds ref count to the child so it is always safe * for the parent to access the child, but the child has a * pointer to the parent without a ref. To ensure this is safe * the child should only access the parent pointer while the * parent is pinned. */ GEM_BUG_ON(!intel_context_is_pinned(ce->parallel.parent)); return ce->parallel.parent; } else { return ce; } } static inline bool intel_context_is_parallel(struct intel_context *ce) { return intel_context_is_child(ce) || intel_context_is_parent(ce); } void intel_context_bind_parent_child(struct intel_context *parent, struct intel_context *child); #define for_each_child(parent, ce)\ list_for_each_entry(ce, &(parent)->parallel.child_list,\ parallel.child_link) #define for_each_child_safe(parent, ce, cn)\ list_for_each_entry_safe(ce, cn, &(parent)->parallel.child_list,\ parallel.child_link) /** * intel_context_lock_pinned - Stablises the 'pinned' status of the HW context * @ce: the context * * Acquire a lock on the pinned status of the HW context, such that the context * can neither be bound to the GPU or unbound whilst the lock is held, i.e. * intel_context_is_pinned() remains stable. */ static inline int intel_context_lock_pinned(struct intel_context *ce) __acquires(ce->pin_mutex) { return mutex_lock_interruptible(&ce->pin_mutex); } /** * intel_context_is_pinned - Reports the 'pinned' status * @ce: the context * * While in use by the GPU, the context, along with its ring and page * tables is pinned into memory and the GTT. * * Returns: true if the context is currently pinned for use by the GPU. */ static inline bool intel_context_is_pinned(struct intel_context *ce) { return atomic_read(&ce->pin_count); } static inline void intel_context_cancel_request(struct intel_context *ce, struct i915_request *rq) { GEM_BUG_ON(!ce->ops->cancel_request); return ce->ops->cancel_request(ce, rq); } /** * intel_context_unlock_pinned - Releases the earlier locking of 'pinned' status * @ce: the context * * Releases the lock earlier acquired by intel_context_unlock_pinned(). */ static inline void intel_context_unlock_pinned(struct intel_context *ce) __releases(ce->pin_mutex) { mutex_unlock(&ce->pin_mutex); } int __intel_context_do_pin(struct intel_context *ce); int __intel_context_do_pin_ww(struct intel_context *ce, struct i915_gem_ww_ctx *ww); static inline bool intel_context_pin_if_active(struct intel_context *ce) { return atomic_inc_not_zero(&ce->pin_count); } static inline int intel_context_pin(struct intel_context *ce) { if (likely(intel_context_pin_if_active(ce))) return 0; return __intel_context_do_pin(ce); } static inline int intel_context_pin_ww(struct intel_context *ce, struct i915_gem_ww_ctx *ww) { if (likely(intel_context_pin_if_active(ce))) return 0; return __intel_context_do_pin_ww(ce, ww); } static inline void __intel_context_pin(struct intel_context *ce) { GEM_BUG_ON(!intel_context_is_pinned(ce)); atomic_inc(&ce->pin_count); } void __intel_context_do_unpin(struct intel_context *ce, int sub); static inline void intel_context_sched_disable_unpin(struct intel_context *ce) { __intel_context_do_unpin(ce, 2); } static inline void intel_context_unpin(struct intel_context *ce) { if (!ce->ops->sched_disable) { __intel_context_do_unpin(ce, 1); } else { /* * Move ownership of this pin to the scheduling disable which is * an async operation. When that operation completes the above * intel_context_sched_disable_unpin is called potentially * unpinning the context. */ while (!atomic_add_unless(&ce->pin_count, -1, 1)) { if (atomic_cmpxchg(&ce->pin_count, 1, 2) == 1) { ce->ops->sched_disable(ce); break; } } } } void intel_context_enter_engine(struct intel_context *ce); void intel_context_exit_engine(struct intel_context *ce); static inline void intel_context_enter(struct intel_context *ce) { lockdep_assert_held(&ce->timeline->mutex); if (ce->active_count++) return; ce->ops->enter(ce); ce->wakeref = intel_gt_pm_get(ce->vm->gt); } static inline void intel_context_mark_active(struct intel_context *ce) { lockdep_assert(lockdep_is_held(&ce->timeline->mutex) || test_bit(CONTEXT_IS_PARKING, &ce->flags)); ++ce->active_count; } static inline void intel_context_exit(struct intel_context *ce) { lockdep_assert_held(&ce->timeline->mutex); GEM_BUG_ON(!ce->active_count); if (--ce->active_count) return; intel_gt_pm_put_async(ce->vm->gt, ce->wakeref); ce->ops->exit(ce); } static inline struct intel_context *intel_context_get(struct intel_context *ce) { kref_get(&ce->ref); return ce; } static inline void intel_context_put(struct intel_context *ce) { kref_put(&ce->ref, ce->ops->destroy); } static inline struct intel_timeline *__must_check intel_context_timeline_lock(struct intel_context *ce) __acquires(&ce->timeline->mutex) { struct intel_timeline *tl = ce->timeline; int err; if (intel_context_is_parent(ce)) err = mutex_lock_interruptible_nested(&tl->mutex, 0); else if (intel_context_is_child(ce)) err = mutex_lock_interruptible_nested(&tl->mutex, ce->parallel.child_index + 1); else err = mutex_lock_interruptible(&tl->mutex); if (err) return ERR_PTR(err); return tl; } static inline void intel_context_timeline_unlock(struct intel_timeline *tl) __releases(&tl->mutex) { mutex_unlock(&tl->mutex); } int intel_context_prepare_remote_request(struct intel_context *ce, struct i915_request *rq); struct i915_request *intel_context_create_request(struct intel_context *ce); struct i915_request *intel_context_get_active_request(struct intel_context *ce); static inline bool intel_context_is_barrier(const struct intel_context *ce) { return test_bit(CONTEXT_BARRIER_BIT, &ce->flags); } static inline void intel_context_close(struct intel_context *ce) { set_bit(CONTEXT_CLOSED_BIT, &ce->flags); if (ce->ops->close) ce->ops->close(ce); } static inline bool intel_context_is_closed(const struct intel_context *ce) { return test_bit(CONTEXT_CLOSED_BIT, &ce->flags); } static inline bool intel_context_has_inflight(const struct intel_context *ce) { return test_bit(COPS_HAS_INFLIGHT_BIT, &ce->ops->flags); } static inline bool intel_context_use_semaphores(const struct intel_context *ce) { return test_bit(CONTEXT_USE_SEMAPHORES, &ce->flags); } static inline void intel_context_set_use_semaphores(struct intel_context *ce) { set_bit(CONTEXT_USE_SEMAPHORES, &ce->flags); } static inline void intel_context_clear_use_semaphores(struct intel_context *ce) { clear_bit(CONTEXT_USE_SEMAPHORES, &ce->flags); } static inline bool intel_context_is_banned(const struct intel_context *ce) { return test_bit(CONTEXT_BANNED, &ce->flags); } static inline bool intel_context_set_banned(struct intel_context *ce) { return test_and_set_bit(CONTEXT_BANNED, &ce->flags); } bool intel_context_ban(struct intel_context *ce, struct i915_request *rq); static inline bool intel_context_is_schedulable(const struct intel_context *ce) { return !test_bit(CONTEXT_EXITING, &ce->flags) && !test_bit(CONTEXT_BANNED, &ce->flags); } static inline bool intel_context_is_exiting(const struct intel_context *ce) { return test_bit(CONTEXT_EXITING, &ce->flags); } static inline bool intel_context_set_exiting(struct intel_context *ce) { return test_and_set_bit(CONTEXT_EXITING, &ce->flags); } bool intel_context_revoke(struct intel_context *ce); static inline bool intel_context_force_single_submission(const struct intel_context *ce) { return test_bit(CONTEXT_FORCE_SINGLE_SUBMISSION, &ce->flags); } static inline void intel_context_set_single_submission(struct intel_context *ce) { __set_bit(CONTEXT_FORCE_SINGLE_SUBMISSION, &ce->flags); } static inline bool intel_context_nopreempt(const struct intel_context *ce) { return test_bit(CONTEXT_NOPREEMPT, &ce->flags); } static inline void intel_context_set_nopreempt(struct intel_context *ce) { set_bit(CONTEXT_NOPREEMPT, &ce->flags); } static inline void intel_context_clear_nopreempt(struct intel_context *ce) { clear_bit(CONTEXT_NOPREEMPT, &ce->flags); } u64 intel_context_get_total_runtime_ns(struct intel_context *ce); u64 intel_context_get_avg_runtime_ns(struct intel_context *ce); static inline u64 intel_context_clock(void) { /* As we mix CS cycles with CPU clocks, use the raw monotonic clock. */ return ktime_get_raw_fast_ns(); } #endif /* __INTEL_CONTEXT_H__ */
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