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/linux/drivers/gpu/drm/i915/
H A Di915_sw_fence.c8 #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 Di915_sw_fence.h12 #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 Di915_deps.c6 #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 Di915_active.h21 * "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 Ddma-fence.c3 * Fence mechanism for dma-buf and to allow for asynchronous dma access
16 #include <linux/dma-fence.h>
30 * fence context counter: each execution context should have its own
31 * fence context, this allows checking if fences belong to the same
44 * A fence is initialized using dma_fence_init() and completed using
59 * fence to be updated.
68 * DOC: fence cross-driver contract
94 * This means any code required for fence completion cannot acquire a
99 * callbacks. This means any code required for fence completion cannot
104 * for fence completio
113 dma_fence_stub_get_name(struct dma_fence * fence) dma_fence_stub_get_name() argument
153 struct dma_fence *fence; dma_fence_allocate_private_stub() local
353 dma_fence_signal_timestamp_locked(struct dma_fence * fence,ktime_t timestamp) dma_fence_signal_timestamp_locked() argument
401 dma_fence_signal_timestamp(struct dma_fence * fence,ktime_t timestamp) dma_fence_signal_timestamp() argument
427 dma_fence_signal_locked(struct dma_fence * fence) dma_fence_signal_locked() argument
444 dma_fence_check_and_signal_locked(struct dma_fence * fence) dma_fence_check_and_signal_locked() argument
464 dma_fence_check_and_signal(struct dma_fence * fence) dma_fence_check_and_signal() argument
487 dma_fence_signal(struct dma_fence * fence) dma_fence_signal() argument
524 dma_fence_wait_timeout(struct dma_fence * fence,bool intr,signed long timeout) dma_fence_wait_timeout() argument
572 struct dma_fence *fence = dma_fence_release() local
622 dma_fence_free(struct dma_fence * fence) dma_fence_free() argument
628 __dma_fence_enable_signaling(struct dma_fence * fence) __dma_fence_enable_signaling() argument
665 dma_fence_enable_sw_signaling(struct dma_fence * fence) dma_fence_enable_sw_signaling() argument
697 dma_fence_add_callback(struct dma_fence * fence,struct dma_fence_cb * cb,dma_fence_func_t func) dma_fence_add_callback() argument
737 dma_fence_get_status(struct dma_fence * fence) dma_fence_get_status() argument
769 dma_fence_remove_callback(struct dma_fence * fence,struct dma_fence_cb * cb) dma_fence_remove_callback() argument
790 dma_fence_default_wait_cb(struct dma_fence * fence,struct dma_fence_cb * cb) dma_fence_default_wait_cb() argument
811 dma_fence_default_wait(struct dma_fence * fence,bool intr,signed long timeout) dma_fence_default_wait() argument
867 struct dma_fence *fence = fences[i]; dma_fence_test_signaled_any() local
926 struct dma_fence *fence = fences[i]; dma_fence_wait_any_timeout() local
1019 dma_fence_set_deadline(struct dma_fence * fence,ktime_t deadline) dma_fence_set_deadline() argument
1038 dma_fence_describe(struct dma_fence * fence,struct seq_file * seq) dma_fence_describe() argument
1061 __dma_fence_init(struct dma_fence * fence,const struct dma_fence_ops * ops,spinlock_t * lock,u64 context,u64 seqno,unsigned long flags) __dma_fence_init() argument
1109 dma_fence_init(struct dma_fence * fence,const struct dma_fence_ops * ops,spinlock_t * lock,u64 context,u64 seqno) dma_fence_init() argument
1136 dma_fence_init64(struct dma_fence * fence,const struct dma_fence_ops * ops,spinlock_t * lock,u64 context,u64 seqno) dma_fence_init64() argument
1164 dma_fence_driver_name(struct dma_fence * fence) dma_fence_driver_name() argument
1197 dma_fence_timeline_name(struct dma_fence * fence) dma_fence_timeline_name() argument
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H A Dsync_file.c8 #include <linux/dma-fence-unwrap.h>
58 * @fence: fence to add to the sync_fence
60 * Creates a sync_file containg @fence. This function acquires and additional
61 * reference of @fence for the newly-created &sync_file, if it succeeds. The
65 struct sync_file *sync_file_create(struct dma_fence *fence) in sync_file_create() argument
73 sync_file->fence = dma_fence_get(fence); in sync_file_create()
97 * sync_file_get_fence - get the fence related to the sync_file fd
98 * @fd: sync_file fd to get the fence from
100 * Ensures @fd references a valid sync_file and returns a fence that
101 * represents all fence in the sync_file. On error NULL is returned.
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H A Dst-dma-fence-chain.c9 #include <linux/dma-fence.h>
10 #include <linux/dma-fence-chain.h>
61 struct dma_fence *fence, in mock_chain()
70 dma_fence_chain_init(f, dma_fence_get(prev), dma_fence_get(fence), in mock_chain()
177 struct dma_fence *fence; in fence_chains_fini()
182 KUNIT_ASSERT_EQ_MSG(test, err, 0, "Failed to init fence chains"); in find_seqno() local
184 fence = dma_fence_get(fc.tail); in find_seqno()
185 err = dma_fence_chain_find_seqno(&fence, 0); in find_seqno()
186 dma_fence_put(fence); in find_seqno()
193 fence in find_seqno()
62 mock_chain(struct dma_fence * prev,struct dma_fence * fence,u64 seqno) mock_chain() argument
260 struct dma_fence *fence; find_signaled() local
298 struct dma_fence *fence; find_out_of_order() local
342 struct dma_fence *fence; find_gap() local
398 struct dma_fence *fence = dma_fence_get(data->fc.tail); __find_race() local
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H A Dst-dma-fence-unwrap.c8 #include <linux/dma-fence.h>
9 #include <linux/dma-fence-array.h>
10 #include <linux/dma-fence-chain.h>
11 #include <linux/dma-fence-unwrap.h>
84 struct dma_fence *fence) in mock_chain()
91 dma_fence_put(fence); in mock_chain()
95 dma_fence_chain_init(f, prev, fence, 1); in mock_chain()
119 struct dma_fence *fence, *f1, *f2, *array; in sanitycheck()
129 KUNIT_FAIL(test, "Failed to create mock fence"); in unwrap_array()
139 dma_fence_unwrap_for_each(fence, in unwrap_array()
85 mock_chain(struct dma_fence * prev,struct dma_fence * fence) mock_chain() argument
125 struct dma_fence *fence, *f1, *f2, *array; unwrap_array() local
169 struct dma_fence *fence, *f1, *f2, *chain; unwrap_chain() local
213 struct dma_fence *fence, *f1, *f2, *array, *chain; unwrap_chain_array() local
261 struct dma_fence *fence, *f1, *f2, *f3; unwrap_merge() local
313 struct dma_fence *fence, *f1, *f2; unwrap_merge_duplicate() local
352 struct dma_fence *fence, *f1, *f2, *f3, *f4; unwrap_merge_seqno() local
418 struct dma_fence *fence, *f1, *f2, *a1, *a2, *c1, *c2; unwrap_merge_order() local
484 struct dma_fence *fence, *f1, *f2, *f3, *f4, *f5; unwrap_merge_complex() local
547 struct dma_fence *fence, *f1, *f2, *f3, *f4, *f5, *f6, *f7; unwrap_merge_complex_seqno() local
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/linux/drivers/gpu/drm/radeon/
H A Dradeon_fence.c50 * 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 Dradeon_sync.c55 * 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/vgem/
H A Dvgem_fence.c38 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
74 fence = kzalloc_obj(*fence); in vgem_fence_create()
75 if (!fence) in vgem_fence_create()
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/linux/drivers/gpu/drm/amd/amdgpu/
H A Damdgpu_amdkfd_fence.c23 #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
68 struct amdgpu_amdkfd_fence *fence; in amdgpu_amdkfd_fence_create() local
70 fence = kzalloc_obj(*fence); in amdgpu_amdkfd_fence_create()
71 if (fence == NULL) in amdgpu_amdkfd_fence_create()
76 fence->mm = mm; in amdgpu_amdkfd_fence_create()
77 get_task_comm(fence->timeline_name, current); in amdgpu_amdkfd_fence_create()
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H A Damdgpu_userq_fence.c27 #include <linux/dma-fence-unwrap.h>
149 struct dma_fence *fence; in amdgpu_userq_fence_driver_process() local
169 fence = &userq_fence->base; in amdgpu_userq_fence_driver_process()
171 dma_fence_signal(fence); in amdgpu_userq_fence_driver_process()
176 dma_fence_put(fence); in amdgpu_userq_fence_driver_process()
189 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->link); in amdgpu_userq_fence_driver_destroy()
270 struct amdgpu_userq_fence *fence, in amdgpu_userq_fence_init() argument
309 struct amdgpu_userq_fence *fence = to_amdgpu_userq_fence(f); amdgpu_userq_fence_get_timeline_name() local
316 struct amdgpu_userq_fence *fence = to_amdgpu_userq_fence(f); amdgpu_userq_fence_signaled() local
331 struct dma_fence *fence = container_of(rcu, struct dma_fence, rcu); amdgpu_userq_fence_free() local
418 amdgpu_userq_fence_driver_set_error(struct amdgpu_userq_fence * fence,int error) amdgpu_userq_fence_driver_set_error() argument
440 struct amdgpu_userq_fence *fence = to_amdgpu_userq_fence(f); amdgpu_userq_fence_driver_force_completion() local
464 struct amdgpu_userq_fence *fence; amdgpu_userq_signal_ioctl() local
603 struct dma_fence *fence, *f; amdgpu_userq_wait_count_fences() local
664 struct dma_fence *fence; amdgpu_userq_wait_count_fences() local
674 struct dma_fence *fence; amdgpu_userq_wait_count_fences() local
693 amdgpu_userq_wait_add_fence(struct drm_amdgpu_userq_wait * wait_info,struct dma_fence ** fences,unsigned int * num_fences,struct dma_fence * fence) amdgpu_userq_wait_add_fence() argument
716 struct dma_fence **fences, *fence, *f; amdgpu_userq_wait_return_fence_info() local
760 struct dma_fence *fence; amdgpu_userq_wait_return_fence_info() local
799 struct dma_fence *fence; amdgpu_userq_wait_return_fence_info() local
813 struct dma_fence *fence; amdgpu_userq_wait_return_fence_info() local
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/linux/drivers/gpu/drm/
H A Ddrm_syncobj.c3 * Parts ported from amdgpu (fence wait code).
41 * - Import and export a syncobj's underlying fence to/from a sync file
42 * - Reset a syncobj (set its fence to NULL)
43 * - Signal a syncobj (set a trivially signaled fence)
44 * - Wait for a syncobj's fence to appear and be signaled
57 * to an already signaled fence depending on whether the
63 * the syncobj, the syncobj's fence is replaced with a fence which will be
67 * struct &dma_fence_chain pointing to the DRM driver's fence and also
68 * pointing to the previous fence tha
218 struct dma_fence *fence; global() member
228 struct dma_fence *fence; global() member
269 struct dma_fence *fence; drm_syncobj_fence_add_wait() local
335 drm_syncobj_add_point(struct drm_syncobj * syncobj,struct dma_fence_chain * chain,struct dma_fence * fence,uint64_t point) drm_syncobj_add_point() argument
373 drm_syncobj_replace_fence(struct drm_syncobj * syncobj,struct dma_fence * fence) drm_syncobj_replace_fence() argument
409 struct dma_fence *fence = dma_fence_allocate_private_stub(ktime_get()); drm_syncobj_assign_null_handle() local
438 drm_syncobj_find_fence(struct drm_file * file_private,u32 handle,u64 point,u64 flags,struct dma_fence ** fence) drm_syncobj_find_fence() argument
555 drm_syncobj_create(struct drm_syncobj ** out_syncobj,uint32_t flags,struct dma_fence * fence) drm_syncobj_create() argument
729 struct dma_fence *fence = sync_file_get_fence(fd); drm_syncobj_import_sync_file_fence() local
761 struct dma_fence *fence; drm_syncobj_export_sync_file() local
923 struct dma_fence *fence, *tmp; drm_syncobj_transfer_to_timeline() local
964 struct dma_fence *fence; drm_syncobj_transfer_to_binary() local
1002 syncobj_wait_fence_func(struct dma_fence * fence,struct dma_fence_cb * cb) syncobj_wait_fence_func() argument
1014 struct dma_fence *fence; syncobj_wait_syncobj_func() local
1042 struct dma_fence *fence; drm_syncobj_array_wait_timeout() local
1077 struct dma_fence *fence; drm_syncobj_array_wait_timeout() local
1407 syncobj_eventfd_entry_fence_func(struct dma_fence * fence,struct dma_fence_cb * cb) syncobj_eventfd_entry_fence_func() argument
1422 struct dma_fence *fence; syncobj_eventfd_entry_func() local
1636 struct dma_fence *fence = dma_fence_get_stub(); drm_syncobj_timeline_signal_ioctl() local
1679 struct dma_fence *fence; drm_syncobj_query_ioctl() local
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/linux/drivers/gpu/drm/xe/
H A Dxe_range_fence.c6 #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
57 xe_range_fence_insert(struct xe_range_fence_tree * tree,struct xe_range_fence * rfence,const struct xe_range_fence_ops * ops,u64 start,u64 last,struct dma_fence * fence) xe_range_fence_insert() argument
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H A Dxe_sync.c8 #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()
177 sync->fence = drm_syncobj_fence_get(sync->syncobj); in xe_sync_entry_parse()
178 if (XE_IOCTL_DBG(xe, !sync->fence)) { in xe_sync_entry_parse()
183 err = dma_fence_chain_find_seqno(&sync->fence, in xe_sync_entry_parse()
269 xe_sync_entry_signal(struct xe_sync_entry * sync,struct dma_fence * fence) xe_sync_entry_signal() argument
337 struct dma_fence *fence; xe_sync_in_fence_get() local
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H A Dxe_preempt_fence.c28 xe_gt_dbg(q->gt, "PREEMPT FENCE RETRY guc_id=%d", in preempt_fence_work_func()
44 * Opt for keep everything in the fence critical section. This looks really strange since we in preempt_fence_work_func()
45 * have just signalled the fence, however the preempt fences are all signalled via single in preempt_fence_work_func()
48 * ever signalling. Therefore try to keep everything here in the callback in the fence in preempt_fence_work_func()
59 preempt_fence_get_driver_name(struct dma_fence *fence) in preempt_fence_get_driver_name() argument
65 preempt_fence_get_timeline_name(struct dma_fence *fence) in preempt_fence_get_timeline_name() argument
70 static bool preempt_fence_enable_signaling(struct dma_fence *fence) in preempt_fence_enable_signaling() argument
73 container_of(fence, typeof(*pfence), base); in preempt_fence_enable_signaling()
88 * xe_preempt_fence_alloc() - Allocate a preempt fence with minimal
91 * Allocate a preempt fence, and initialize its list head.
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H A Dxe_hw_fence_types.h9 #include <linux/dma-fence.h>
19 * struct xe_hw_fence_irq - hardware fence IRQ handler
31 /** @enabled: fence signaling enabled */
38 * struct xe_hw_fence_ctx - hardware fence context
40 * The context for a hardware fence. 1 to 1 relationship with xe_engine. Points
44 /** @gt: GT structure of hardware fence context */
46 /** @irq: fence irq handler */
48 /** @dma_fence_ctx: dma fence context for hardware fence */
50 /** @next_seqno: next seqno for hardware fence */
52 /** @name: name of hardware fence context */
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/linux/drivers/gpu/drm/i915/selftests/
H A Dlib_sw_fence.c27 /* 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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/linux/drivers/gpu/host1x/
H A Dintr.c11 #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
55 host1x_intr_remove_fence(struct host1x * host,struct host1x_syncpt_fence * fence) host1x_intr_remove_fence() argument
78 struct host1x_syncpt_fence *fence, *tmp; host1x_intr_handle_interrupt() local
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/linux/tools/testing/selftests/sync/
H A Dsync_stress_consumer.c40 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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H A Dsync_stress_merge.c43 int fence, tmpfence, merged, valid; in test_merge_stress_random_merge() local
51 fence = sw_sync_fence_create(timelines[0], "fence", 0); in test_merge_stress_random_merge()
52 valid = sw_sync_fence_is_valid(fence); in test_merge_stress_random_merge()
53 ASSERT(valid, "Failure creating fence\n"); in test_merge_stress_random_merge()
75 tmpfence = sw_sync_fence_create(timeline, "fence", sync_point); in test_merge_stress_random_merge()
76 merged = sync_merge("merge", tmpfence, fence); in test_merge_stress_random_merge()
78 sw_sync_fence_destroy(fence); in test_merge_stress_random_merge()
79 fence = merged; in test_merge_stress_random_merge()
82 ASSERT(valid, "Failure creating fence i\n"); in test_merge_stress_random_merge()
90 /* Confirm our map matches the fence. */ in test_merge_stress_random_merge()
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/linux/drivers/gpu/drm/msm/
H A Dmsm_fence.c7 #include <linux/dma-fence.h>
34 /* If deadline fence has already passed, nothing to do: */ in deadline_work()
61 * Start out close to the 32b fence rollover point, so we can in msm_fence_context_alloc()
62 * catch bugs with fence comparisons. in msm_fence_context_alloc()
82 bool msm_fence_completed(struct msm_fence_context *fctx, uint32_t fence) in msm_fence_completed() argument
88 return (int32_t)(fctx->completed_fence - fence) >= 0 || in msm_fence_completed()
89 (int32_t)(*fctx->fenceptr - fence) >= 0; in msm_fence_completed()
93 void msm_update_fence(struct msm_fence_context *fctx, uint32_t fence) in msm_update_fence() argument
98 if (fence_after(fence, fctx->completed_fence)) in msm_update_fence()
99 fctx->completed_fence = fence; in msm_update_fence()
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H A Dmsm_fence.h13 * struct msm_fence_context - fence context for gpu
15 * Each ringbuffer has a single fence context, with the GPU writing an
16 * incrementing fence seqno at the end of each submit
21 /** @name: human readable name for fence timeline */
29 * Last assigned fence, incremented each time a fence is created
30 * on this fence context. If last_fence == completed_fence,
36 * The last completed fence, updated from the CPU after interrupt
42 * The address that the GPU directly writes with completed fence
44 * this to see if a fence has already signaled but the CPU hasn't
50 * @spinlock: fence context spinlock
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/linux/drivers/gpu/drm/virtio/
H A Dvirtgpu_fence.c45 /* leaked fence outside driver before completing in virtio_gpu_fence_signaled()
64 struct virtio_gpu_fence *fence = kzalloc_obj(struct virtio_gpu_fence); in virtio_gpu_fence_alloc() local
66 if (!fence) in virtio_gpu_fence_alloc()
67 return fence; in virtio_gpu_fence_alloc()
69 fence->drv = drv; in virtio_gpu_fence_alloc()
70 fence->ring_idx = ring_idx; in virtio_gpu_fence_alloc()
71 fence->emit_fence_info = !(base_fence_ctx == drv->context); in virtio_gpu_fence_alloc()
73 /* This only partially initializes the fence because the seqno is in virtio_gpu_fence_alloc()
74 * unknown yet. The fence must not be used outside of the driver in virtio_gpu_fence_alloc()
78 dma_fence_init(&fence->f, &virtio_gpu_fence_ops, &drv->lock, in virtio_gpu_fence_alloc()
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