| /linux/drivers/gpu/drm/i915/ |
| H A D | i915_sw_fence.c | 8 #include <linux/dma-fence.h>
49 static inline void debug_fence_init(struct i915_sw_fence *fence) in debug_fence_init() argument
51 debug_object_init(fence, &i915_sw_fence_debug_descr); in debug_fence_init()
54 static inline __maybe_unused void debug_fence_init_onstack(struct i915_sw_fence *fence) in debug_fence_init_onstack() argument
56 debug_object_init_on_stack(fence, &i915_sw_fence_debug_descr); in debug_fence_init_onstack()
59 static inline void debug_fence_activate(struct i915_sw_fence *fence) in debug_fence_activate() argument
61 debug_object_activate(fence, &i915_sw_fence_debug_descr); in debug_fence_activate()
64 static inline void debug_fence_set_state(struct i915_sw_fence *fence, in debug_fence_set_state() argument
67 debug_object_active_state(fence, &i915_sw_fence_debug_descr, old, new); in debug_fence_set_state()
70 static inline void debug_fence_deactivate(struct i915_sw_fence *fence) in debug_fence_deactivate() argument
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| H A D | i915_sw_fence.h | 12 #include <linux/dma-fence.h>
42 void __i915_sw_fence_init(struct i915_sw_fence *fence,
47 #define i915_sw_fence_init(fence, fn) \ argument
52 __i915_sw_fence_init((fence), (fn), #fence, &__key); \
55 #define i915_sw_fence_init(fence, fn) \ argument
58 __i915_sw_fence_init((fence), (fn), NULL, NULL); \
62 void i915_sw_fence_reinit(struct i915_sw_fence *fence);
65 void i915_sw_fence_fini(struct i915_sw_fence *fence);
67 static inline void i915_sw_fence_fini(struct i915_sw_fence *fence) {} in i915_sw_fence_fini() argument
70 void i915_sw_fence_commit(struct i915_sw_fence *fence);
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| H A D | i915_deps.c | 6 #include <linux/dma-fence.h>
18 * the migration fence with the unbind fences if these are coalesced
33 /* Min number of fence pointers in the array when an allocation occurs. */
61 * This function drops all fence references taken, conditionally frees and
75 static int i915_deps_grow(struct i915_deps *deps, struct dma_fence *fence, in i915_deps_grow() argument
96 deps->fences[deps->num_deps++] = dma_fence_get(fence); in i915_deps_grow()
100 if (ctx->no_wait_gpu && !dma_fence_is_signaled(fence)) { in i915_deps_grow()
105 ret = dma_fence_wait(fence, ctx->interruptible); in i915_deps_grow()
109 ret = fence->error; in i915_deps_grow()
127 * encounters an error during the wait or a fence error, the wait for
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| H A D | i915_active.h | 21 * "fence registers" but pipeline synchronisation objects ala GL_ARB_sync.
30 * In order to use a fence, the object must track the fence it needs to
34 * complete, or waiting for the last GPU user of a "fence register". The
38 * track the most recent fence request, typically this is done as part of
48 void i915_active_noop(struct dma_fence *fence, struct dma_fence_cb *cb);
53 * @fence: initial fence to track, can be NULL
58 * an activity tracker, that is for tracking the last known active fence
59 * associated with it. When the last fence becomes idle, when it is retired
64 void *fence, in __i915_active_fence_init() argument
67 RCU_INIT_POINTER(active->fence, fence); in __i915_active_fence_init()
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| /linux/drivers/dma-buf/ |
| H A D | dma-fence.c | 3 * Fence mechanism for dma-buf and to allow for asynchronous dma access
16 #include <linux/dma-fence.h>
31 * fence context counter: each execution context should have its own
32 * fence context, this allows checking if fences belong to the same
45 * A fence is initialized using dma_fence_init() and completed using
60 * fence to be updated.
69 * DOC: fence cross-driver contract
95 * This means any code required for fence completion cannot acquire a
100 * callbacks. This means any code required for fence completion cannot
105 * for fence completion cannot allocate memory with GFP_NOFS or GFP_NOIO.
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| H A D | dma-resv.c | 37 #include <linux/dma-fence-array.h>
49 * can have any number of fences attaches to it. Each fence carries an usage
50 * parameter determining how the operation represented by the fence is using the
60 /* Mask for the lower fence pointer bits */
69 /* Extract the fence and usage flags from an RCU protected entry in the list. */
71 struct dma_resv *resv, struct dma_fence **fence, in dma_resv_list_entry() argument
78 *fence = (struct dma_fence *)(tmp & ~DMA_RESV_LIST_MASK); in dma_resv_list_entry()
83 /* Set the fence and usage flags at the specific index in the list. */
86 struct dma_fence *fence, in dma_resv_list_set() argument
89 long tmp = ((long)fence) | usage; in dma_resv_list_set()
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| H A D | st-dma-fence-chain.c | 8 #include <linux/dma-fence.h>
9 #include <linux/dma-fence-chain.h>
62 struct dma_fence *fence, in mock_chain() argument
71 dma_fence_chain_init(f, dma_fence_get(prev), dma_fence_get(fence), in mock_chain()
184 struct dma_fence *fence; in find_seqno() local
192 fence = dma_fence_get(fc.tail); in find_seqno()
193 err = dma_fence_chain_find_seqno(&fence, 0); in find_seqno()
194 dma_fence_put(fence); in find_seqno()
201 fence = dma_fence_get(fc.tail); in find_seqno()
202 err = dma_fence_chain_find_seqno(&fence, i + 1); in find_seqno()
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| H A D | dma-fence-array.c | 3 * dma-fence-array: aggregate fences to be waited together
14 #include <linux/dma-fence-array.h>
18 static const char *dma_fence_array_get_driver_name(struct dma_fence *fence) in dma_fence_array_get_driver_name() argument
23 static const char *dma_fence_array_get_timeline_name(struct dma_fence *fence) in dma_fence_array_get_timeline_name() argument
70 static bool dma_fence_array_enable_signaling(struct dma_fence *fence) in dma_fence_array_enable_signaling() argument
72 struct dma_fence_array *array = to_dma_fence_array(fence); in dma_fence_array_enable_signaling()
79 * As we may report that the fence is signaled before all in dma_fence_array_enable_signaling()
82 * early. The core fence handling will only hold the reference in dma_fence_array_enable_signaling()
103 static bool dma_fence_array_signaled(struct dma_fence *fence) in dma_fence_array_signaled() argument
105 struct dma_fence_array *array = to_dma_fence_array(fence); in dma_fence_array_signaled()
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| H A D | sw_sync.c | 42 * from the timeline and signal any fence that has a seqno smaller or equal
46 * @value: the seqno to initialise the fence with
48 * @fence: return the fd of the new sync_file with the created fence
53 __s32 fence; /* fd of new fence */ member
57 * struct sw_sync_get_deadline - get the deadline hint of a sw_sync fence
60 * @fence_fd: the sw_sync fence fd (in)
62 * Return the earliest deadline set on the fence. The timebase for the
64 * set on the fence, this ioctl will return -ENOENT.
86 static inline struct sync_pt *dma_fence_to_sync_pt(struct dma_fence *fence) in dma_fence_to_sync_pt() argument
88 if (fence->ops != &timeline_fence_ops) in dma_fence_to_sync_pt()
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| /linux/drivers/gpu/drm/radeon/ |
| H A D | radeon_fence.c | 50 * for GPU/CPU synchronization. When the fence is written,
51 * it is expected that all buffers associated with that fence
59 * radeon_fence_write - write a fence value
63 * @ring: ring index the fence is associated with
65 * Writes a fence value to memory or a scratch register (all asics).
80 * radeon_fence_read - read a fence value
83 * @ring: ring index the fence is associated with
85 * Reads a fence value from memory or a scratch register (all asics).
86 * Returns the value of the fence read from memory or register.
124 * radeon_fence_emit - emit a fence on the requested ring
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| H A D | radeon_sync.c | 55 * radeon_sync_fence - use the semaphore to sync to a fence
57 * @sync: sync object to add fence to
58 * @fence: fence to sync to
60 * Sync to the fence using the semaphore objects
63 struct radeon_fence *fence) in radeon_sync_fence() argument
67 if (!fence) in radeon_sync_fence()
70 other = sync->sync_to[fence->ring]; in radeon_sync_fence()
71 sync->sync_to[fence->ring] = radeon_fence_later(fence, other); in radeon_sync_fence()
73 if (fence->is_vm_update) { in radeon_sync_fence()
75 sync->last_vm_update = radeon_fence_later(fence, other); in radeon_sync_fence()
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| /linux/drivers/gpu/drm/nouveau/ |
| H A D | nouveau_fence.c | 42 nouveau_fctx(struct nouveau_fence *fence) in nouveau_fctx() argument
44 return container_of(fence->base.lock, struct nouveau_fence_chan, lock); in nouveau_fctx()
48 nouveau_fence_signal(struct nouveau_fence *fence) in nouveau_fence_signal() argument
52 dma_fence_signal_locked(&fence->base); in nouveau_fence_signal()
53 list_del(&fence->head); in nouveau_fence_signal()
54 rcu_assign_pointer(fence->channel, NULL); in nouveau_fence_signal()
56 if (test_bit(DMA_FENCE_FLAG_USER_BITS, &fence->base.flags)) { in nouveau_fence_signal()
57 struct nouveau_fence_chan *fctx = nouveau_fctx(fence); in nouveau_fence_signal()
63 dma_fence_put(&fence->base); in nouveau_fence_signal()
68 nouveau_local_fence(struct dma_fence *fence, struct nouveau_drm *drm) in nouveau_local_fence() argument
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| /linux/drivers/gpu/drm/vgem/ |
| H A D | vgem_fence.c | 38 static const char *vgem_fence_get_driver_name(struct dma_fence *fence) in vgem_fence_get_driver_name() argument
43 static const char *vgem_fence_get_timeline_name(struct dma_fence *fence) in vgem_fence_get_timeline_name() argument
50 struct vgem_fence *fence = container_of(base, typeof(*fence), base); in vgem_fence_release() local
52 timer_delete_sync(&fence->timer); in vgem_fence_release()
53 dma_fence_free(&fence->base); in vgem_fence_release()
64 struct vgem_fence *fence = timer_container_of(fence, t, timer); in vgem_fence_timeout() local
66 dma_fence_signal(&fence->base); in vgem_fence_timeout()
72 struct vgem_fence *fence; in vgem_fence_create() local
119 struct dma_fence *fence; vgem_fence_attach_ioctl() local
196 struct dma_fence *fence; vgem_fence_signal_ioctl() local
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| /linux/include/linux/ |
| H A D | dma-fence-chain.h | 3 * fence-chain: chain fences together in a timeline
13 #include <linux/dma-fence.h>
18 * struct dma_fence_chain - fence to represent an node of a fence chain
19 * @base: fence base class
20 * @prev: previous fence of the chain
22 * @fence: encapsulated fence
23 * @lock: spinlock for fence handling
29 struct dma_fence *fence; member
35 * complection of the fence chain. Never used at the same time
54 * to_dma_fence_chain - cast a fence to a dma_fence_chain
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| H A D | dma-fence-array.h | 3 * fence-array: aggregates fence to be waited together
15 #include <linux/dma-fence.h>
19 * struct dma_fence_array_cb - callback helper for fence array
20 * @cb: fence callback structure for signaling
21 * @array: reference to the parent fence array object
29 * struct dma_fence_array - fence to represent an array of fences
30 * @base: fence base class
31 * @lock: spinlock for fence handling
52 * to_dma_fence_array - cast a fence to a dma_fence_array
53 * @fence: fence to cast to a dma_fence_array
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| /linux/drivers/gpu/drm/amd/amdgpu/ |
| H A D | amdgpu_fence.c | 56 * amdgpu_fence_write - write a fence value in to_amdgpu_fence()
58 * @ring: ring the fence is associated with in to_amdgpu_fence()
61 * Writes a fence value to memory (all asics).
72 * amdgpu_fence_read - read a fence value in amdgpu_fence_write()
74 * @ring: ring the fence is associated with in amdgpu_fence_write()
76 * Reads a fence value from memory (all asics).
77 * Returns the value of the fence read from memory.
93 * amdgpu_fence_emit - emit a fence on the requested ring in amdgpu_fence_read()
95 * @ring: ring the fence is associated with in amdgpu_fence_read()
96 * @af: amdgpu fence inpu in amdgpu_fence_read()
112 struct dma_fence *fence; amdgpu_fence_emit() local
257 struct dma_fence *fence, **ptr; amdgpu_fence_process() local
315 struct dma_fence *fence, **ptr; amdgpu_fence_wait_empty() local
388 struct dma_fence *fence; amdgpu_fence_last_unsignaled_time_us() local
419 struct dma_fence *fence; amdgpu_fence_update_start_timestamp() local
716 struct dma_fence *fence; amdgpu_fence_driver_set_error() local
765 struct amdgpu_fence *fence; amdgpu_fence_driver_guilty_force_completion() local
799 amdgpu_fence_save_wptr(struct dma_fence * fence) amdgpu_fence_save_wptr() argument
823 struct amdgpu_fence *fence; amdgpu_ring_backup_unprocessed_commands() local
859 amdgpu_fence_get_driver_name(struct dma_fence * fence) amdgpu_fence_get_driver_name() argument
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| H A D | amdgpu_amdkfd_fence.c | 23 #include <linux/dma-fence.h>
36 /* Eviction Fence
37 * Fence helper functions to deal with KFD memory eviction.
41 * All the BOs in a process share an eviction fence. When process X wants
59 * user queues and signal fence. The work item will also start another delayed
67 struct amdgpu_amdkfd_fence *fence; in amdgpu_amdkfd_fence_create() local
69 fence = kzalloc(sizeof(*fence), GFP_KERNEL); in amdgpu_amdkfd_fence_create()
70 if (fence == NULL) in amdgpu_amdkfd_fence_create()
75 fence->mm = mm; in amdgpu_amdkfd_fence_create()
76 get_task_comm(fence->timeline_name, current); in amdgpu_amdkfd_fence_create()
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| H A D | amdgpu_userq_fence.c | 27 #include <linux/dma-fence-unwrap.h>
153 struct dma_fence *fence; in amdgpu_userq_fence_driver_process() local
165 fence = &userq_fence->base; in amdgpu_userq_fence_driver_process()
167 if (rptr < fence->seqno) in amdgpu_userq_fence_driver_process()
170 dma_fence_signal(fence); in amdgpu_userq_fence_driver_process()
176 dma_fence_put(fence); in amdgpu_userq_fence_driver_process()
188 struct amdgpu_userq_fence *fence, *tmp; in amdgpu_userq_fence_driver_destroy() local
194 list_for_each_entry_safe(fence, tmp, &fence_drv->fences, link) { in amdgpu_userq_fence_driver_destroy()
195 f = &fence->base; in amdgpu_userq_fence_driver_destroy()
202 list_del(&fence in amdgpu_userq_fence_driver_destroy()
239 struct dma_fence *fence; amdgpu_userq_fence_create() local
307 struct amdgpu_userq_fence *fence = to_amdgpu_userq_fence(f); amdgpu_userq_fence_get_timeline_name() local
314 struct amdgpu_userq_fence *fence = to_amdgpu_userq_fence(f); amdgpu_userq_fence_signaled() local
329 struct dma_fence *fence = container_of(rcu, struct dma_fence, rcu); amdgpu_userq_fence_free() local
415 amdgpu_userq_fence_cleanup(struct dma_fence * fence) amdgpu_userq_fence_cleanup() argument
421 amdgpu_userq_fence_driver_set_error(struct amdgpu_userq_fence * fence,int error) amdgpu_userq_fence_driver_set_error() argument
443 struct amdgpu_userq_fence *fence = to_amdgpu_userq_fence(f); amdgpu_userq_fence_driver_force_completion() local
469 struct dma_fence *fence; amdgpu_userq_signal_ioctl() local
743 struct dma_fence *fence; amdgpu_userq_wait_ioctl() local
763 struct dma_fence *fence; amdgpu_userq_wait_ioctl() local
779 struct dma_fence *fence; amdgpu_userq_wait_ioctl() local
788 struct dma_fence *fence; amdgpu_userq_wait_ioctl() local
820 struct dma_fence *fence; amdgpu_userq_wait_ioctl() local
837 struct dma_fence *fence; amdgpu_userq_wait_ioctl() local
853 struct dma_fence *fence; amdgpu_userq_wait_ioctl() local
880 struct dma_fence *fence; amdgpu_userq_wait_ioctl() local
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| /linux/drivers/gpu/drm/xe/ |
| H A D | xe_range_fence.c | 6 #include <linux/dma-fence.h>
21 xe_range_fence_signal_notify(struct dma_fence *fence, struct dma_fence_cb *cb) in xe_range_fence_signal_notify() argument
36 dma_fence_put(rfence->fence); in __xe_range_fence_tree_cleanup()
44 * xe_range_fence_insert() - range fence insert
45 * @tree: range fence tree to insert intoi
46 * @rfence: range fence
47 * @ops: range fence ops
48 * @start: start address of range fence
49 * @last: last address of range fence
50 * @fence: dma fence which signals range fence can be removed + freed
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| H A D | xe_sync.c | 8 #include <linux/dma-fence-array.h>
99 static void kick_ufence(struct xe_user_fence *ufence, struct dma_fence *fence) in kick_ufence() argument
103 dma_fence_put(fence); in kick_ufence()
106 static void user_fence_cb(struct dma_fence *fence, struct dma_fence_cb *cb) in user_fence_cb() argument
110 kick_ufence(ufence, fence); in user_fence_cb()
148 sync->fence = drm_syncobj_fence_get(sync->syncobj); in xe_sync_entry_parse()
149 if (XE_IOCTL_DBG(xe, !sync->fence)) in xe_sync_entry_parse()
173 sync->fence = drm_syncobj_fence_get(sync->syncobj); in xe_sync_entry_parse()
174 if (XE_IOCTL_DBG(xe, !sync->fence)) in xe_sync_entry_parse()
177 err = dma_fence_chain_find_seqno(&sync->fence, in xe_sync_entry_parse()
231 xe_sync_entry_signal(struct xe_sync_entry * sync,struct dma_fence * fence) xe_sync_entry_signal() argument
299 struct dma_fence *fence; xe_sync_in_fence_get() local
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| H A D | xe_range_fence.h | 9 #include <linux/dma-fence.h>
16 /** struct xe_range_fence_ops - Xe range fence ops */
18 /** @free: free range fence op */
22 /** struct xe_range_fence - Xe range fence (address conflict tracking) */
26 /** @start: start address of range fence is interval tree */
28 /** @last: last address (inclusive) of range fence is interval tree */
33 * @fence: fence signals address in range fence no longer has conflict
35 struct dma_fence *fence; member
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| /linux/drivers/gpu/drm/i915/selftests/ |
| H A D | lib_sw_fence.c | 27 /* Small library of different fence types useful for writing tests */
30 nop_fence_notify(struct i915_sw_fence *fence, enum i915_sw_fence_notify state) in nop_fence_notify() argument
35 void __onstack_fence_init(struct i915_sw_fence *fence, in __onstack_fence_init() argument
39 debug_fence_init_onstack(fence); in __onstack_fence_init()
41 __init_waitqueue_head(&fence->wait, name, key); in __onstack_fence_init()
42 atomic_set(&fence->pending, 1); in __onstack_fence_init()
43 fence->error = 0; in __onstack_fence_init()
44 fence->fn = nop_fence_notify; in __onstack_fence_init()
47 void onstack_fence_fini(struct i915_sw_fence *fence) in onstack_fence_fini() argument
49 if (!fence->fn) in onstack_fence_fini()
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| H A D | i915_sw_fence.c | 32 fence_notify(struct i915_sw_fence *fence, enum i915_sw_fence_notify state) in fence_notify() argument
39 /* Leave the fence for the caller to free it after testing */ in fence_notify()
48 struct i915_sw_fence *fence; in alloc_fence() local
50 fence = kmalloc(sizeof(*fence), GFP_KERNEL); in alloc_fence()
51 if (!fence) in alloc_fence()
54 i915_sw_fence_init(fence, fence_notify); in alloc_fence()
55 return fence; in alloc_fence()
58 static void free_fence(struct i915_sw_fence *fence) in free_fence() argument
60 i915_sw_fence_fini(fence); in free_fence()
61 kfree(fence); in free_fence()
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| /linux/drivers/gpu/host1x/ |
| H A D | intr.c | 11 #include "fence.h"
15 struct host1x_syncpt_fence *fence) in host1x_intr_add_fence_to_list() argument
20 if ((s32)(fence_in_list->threshold - fence->threshold) <= 0) { in host1x_intr_add_fence_to_list()
21 /* Fence in list is before us, we can insert here */ in host1x_intr_add_fence_to_list()
22 list_add(&fence->list, &fence_in_list->list); in host1x_intr_add_fence_to_list()
28 list_add(&fence->list, &list->list); in host1x_intr_add_fence_to_list()
33 struct host1x_syncpt_fence *fence; in host1x_intr_update_hw_state() local
36 fence = list_first_entry(&sp->fences.list, struct host1x_syncpt_fence, list); in host1x_intr_update_hw_state()
38 host1x_hw_intr_set_syncpt_threshold(host, sp->id, fence->threshold); in host1x_intr_update_hw_state()
45 void host1x_intr_add_fence_locked(struct host1x *host, struct host1x_syncpt_fence *fence) in host1x_intr_add_fence_locked() argument
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| /linux/tools/testing/selftests/sync/ |
| H A D | sync_stress_consumer.c | 40 static int busy_wait_on_fence(int fence) in busy_wait_on_fence() argument
45 error = sync_fence_count_with_status(fence, FENCE_STATUS_ERROR); in busy_wait_on_fence()
46 ASSERT(error == 0, "Error occurred on fence\n"); in busy_wait_on_fence()
47 active = sync_fence_count_with_status(fence, in busy_wait_on_fence()
66 int fence, valid, i; in mpsc_producer_thread() local
72 fence = sw_sync_fence_create(consumer_timeline, "fence", i); in mpsc_producer_thread()
73 valid = sw_sync_fence_is_valid(fence); in mpsc_producer_thread()
74 ASSERT(valid, "Failure creating fence\n"); in mpsc_producer_thread()
78 * means of waiting on the fence in mpsc_producer_thread()
82 ASSERT(sync_wait(fence, -1) > 0, in mpsc_producer_thread()
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