| /Linux-v6.6/drivers/gpu/drm/i915/ |
| 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 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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| 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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| 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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| /Linux-v6.6/include/linux/ |
| D | dma-fence.h | 3 * Fence mechanism for dma-buf to allow for asynchronous dma access
31 * @refcount: refcount for this fence
32 * @ops: dma_fence_ops associated with this fence
33 * @rcu: used for releasing fence with kfree_rcu
36 * @context: execution context this fence belongs to, returned by
38 * @seqno: the sequence number of this fence inside the execution context,
39 * can be compared to decide which fence would be signaled later.
41 * @timestamp: Timestamp when the fence was signaled.
43 * dma_fence_signal, indicates that the fence has completed with an error.
49 * DMA_FENCE_FLAG_SIGNALED_BIT - fence is already signaled
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| 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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| 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
49 * to_dma_fence_array - cast a fence to a dma_fence_array
50 * @fence: fence to cast to a dma_fence_array
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| /Linux-v6.6/drivers/dma-buf/ |
| 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 completeion cannot allocate memory with GFP_NOFS or GFP_NOIO.
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| D | dma-fence-chain.c | 3 * fence-chain: chain fences together in a timeline
10 #include <linux/dma-fence-chain.h>
12 static bool dma_fence_chain_enable_signaling(struct dma_fence *fence);
15 * dma_fence_chain_get_prev - use RCU to get a reference to the previous fence
18 * Use dma_fence_get_rcu_safe to get a reference to the previous fence of the
33 * @fence: current chain node
35 * Walk the chain to the next node. Returns the next fence or NULL if we are at
39 struct dma_fence *dma_fence_chain_walk(struct dma_fence *fence) in dma_fence_chain_walk() argument
44 chain = to_dma_fence_chain(fence); in dma_fence_chain_walk()
46 dma_fence_put(fence); in dma_fence_chain_walk()
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| D | sync_file.c | 8 #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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| 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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| 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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| 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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| /Linux-v6.6/drivers/gpu/drm/radeon/ |
| 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.
125 * radeon_fence_emit - emit a fence on the requested ring
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| /Linux-v6.6/drivers/gpu/drm/scheduler/ |
| D | sched_fence.c | 52 struct dma_fence *fence) in drm_sched_fence_set_parent() argument
57 * fence's parent set before test_bit() in drm_sched_fence_set_parent()
59 smp_store_release(&s_fence->parent, dma_fence_get(fence)); in drm_sched_fence_set_parent()
62 dma_fence_set_deadline(fence, s_fence->deadline); in drm_sched_fence_set_parent()
65 void drm_sched_fence_scheduled(struct drm_sched_fence *fence, in drm_sched_fence_scheduled() argument
68 /* Set the parent before signaling the scheduled fence, such that, in drm_sched_fence_scheduled()
75 drm_sched_fence_set_parent(fence, parent); in drm_sched_fence_scheduled()
77 dma_fence_signal(&fence->scheduled); in drm_sched_fence_scheduled()
80 void drm_sched_fence_finished(struct drm_sched_fence *fence, int result) in drm_sched_fence_finished() argument
83 dma_fence_set_error(&fence->finished, result); in drm_sched_fence_finished()
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| /Linux-v6.6/drivers/gpu/drm/i915/gt/ |
| D | intel_ggtt_fencing.c | 18 * DOC: fence register handling
37 * dynamically associated with objects. Furthermore fence state is committed to
41 * cases the fence can be removed forcefully with i915_gem_object_put_fence().
49 static struct drm_i915_private *fence_to_i915(struct i915_fence_reg *fence) in fence_to_i915() argument
51 return fence->ggtt->vm.i915; in fence_to_i915()
54 static struct intel_uncore *fence_to_uncore(struct i915_fence_reg *fence) in fence_to_uncore() argument
56 return fence->ggtt->vm.gt->uncore; in fence_to_uncore()
59 static void i965_write_fence_reg(struct i915_fence_reg *fence) in i965_write_fence_reg() argument
65 if (GRAPHICS_VER(fence_to_i915(fence)) >= 6) { in i965_write_fence_reg()
66 fence_reg_lo = FENCE_REG_GEN6_LO(fence->id); in i965_write_fence_reg()
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| /Linux-v6.6/drivers/gpu/drm/vgem/ |
| 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 del_timer_sync(&fence->timer); in vgem_fence_release()
53 dma_fence_free(&fence->base); in vgem_fence_release()
56 static void vgem_fence_value_str(struct dma_fence *fence, char *str, int size) in vgem_fence_value_str() argument
58 snprintf(str, size, "%llu", fence->seqno); in vgem_fence_value_str()
61 static void vgem_fence_timeline_value_str(struct dma_fence *fence, char *str, in vgem_fence_timeline_value_str() argument
65 dma_fence_is_signaled(fence) ? fence->seqno : 0); in vgem_fence_timeline_value_str()
79 struct vgem_fence *fence = from_timer(fence, t, timer); in vgem_fence_timeout() local
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| /Linux-v6.6/drivers/gpu/drm/nouveau/ |
| D | nouveau_fence.c | 42 from_fence(struct dma_fence *fence) in from_fence() argument
44 return container_of(fence, struct nouveau_fence, base); in from_fence()
48 nouveau_fctx(struct nouveau_fence *fence) in nouveau_fctx() argument
50 return container_of(fence->base.lock, struct nouveau_fence_chan, lock); in nouveau_fctx()
54 nouveau_fence_signal(struct nouveau_fence *fence) in nouveau_fence_signal() argument
58 dma_fence_signal_locked(&fence->base); in nouveau_fence_signal()
59 list_del(&fence->head); in nouveau_fence_signal()
60 rcu_assign_pointer(fence->channel, NULL); in nouveau_fence_signal()
62 if (test_bit(DMA_FENCE_FLAG_USER_BITS, &fence->base.flags)) { in nouveau_fence_signal()
63 struct nouveau_fence_chan *fctx = nouveau_fctx(fence); in nouveau_fence_signal()
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| /Linux-v6.6/drivers/gpu/drm/vmwgfx/ |
| D | vmwgfx_fence.c | 52 struct vmw_fence_obj fence; member
56 * struct vmw_event_fence_action - fence action that delivers a drm event.
58 * @action: A struct vmw_fence_action to hook up to a fence.
60 * @fence: A referenced pointer to the fence to keep it alive while @action
64 * current time tv_sec val when the fence signals.
66 * be assigned the current time tv_usec val when the fence signals.
72 struct vmw_fence_obj *fence; member
80 fman_from_fence(struct vmw_fence_obj *fence) in fman_from_fence() argument
82 return container_of(fence->base.lock, struct vmw_fence_manager, lock); in fman_from_fence()
105 * a) When a new fence seqno has been submitted by the fifo code.
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| /Linux-v6.6/include/trace/events/ |
| D | dma_fence.h | 14 TP_PROTO(struct dma_fence *fence),
16 TP_ARGS(fence),
19 __string(driver, fence->ops->get_driver_name(fence))
20 __string(timeline, fence->ops->get_timeline_name(fence))
26 __assign_str(driver, fence->ops->get_driver_name(fence));
27 __assign_str(timeline, fence->ops->get_timeline_name(fence));
28 __entry->context = fence->context;
29 __entry->seqno = fence->seqno;
39 TP_PROTO(struct dma_fence *fence),
41 TP_ARGS(fence)
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| /Linux-v6.6/drivers/gpu/drm/amd/amdgpu/ |
| 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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| D | amdgpu_fence.c | 46 * for GPU/CPU synchronization. When the fence is written,
47 * it is expected that all buffers associated with that fence
94 * amdgpu_fence_write - write a fence value
96 * @ring: ring the fence is associated with
99 * Writes a fence value to memory (all asics).
110 * amdgpu_fence_read - read a fence value
112 * @ring: ring the fence is associated with
114 * Reads a fence value from memory (all asics).
115 * Returns the value of the fence read from memory.
131 * amdgpu_fence_emit - emit a fence on the requested ring
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| /Linux-v6.6/drivers/gpu/drm/ |
| D | drm_syncobj.c | 3 * 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 that was in the syncobj. The new struct
69 * &dma_fence_chain fence replace the syncobj's fence and will be signaled by
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| /Linux-v6.6/drivers/gpu/drm/i915/selftests/ |
| 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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| 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-v6.6/drivers/gpu/host1x/ |
| 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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