| /openbmc/linux/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/ |
| H A D | debug_private.h | 56 if (remote_tail > debug_data_ptr->tail) { in debug_synch_queue()
60 debug_data_ptr->tail * sizeof(uint32_t), in debug_synch_queue()
62 } else if (remote_tail < debug_data_ptr->tail) { in debug_synch_queue()
66 debug_data_ptr->tail * sizeof(uint32_t), in debug_synch_queue()
72 debug_data_ptr->tail = remote_tail; in debug_synch_queue()
80 if (remote_tail > debug_data_ptr->tail) { in debug_synch_queue_isp()
96 debug_data_ptr->tail = remote_tail; in debug_synch_queue_isp()
106 if (remote_tail > debug_data_ptr->tail) { in debug_synch_queue_ddr()
110 debug_data_ptr->tail * sizeof(uint32_t), in debug_synch_queue_ddr()
116 debug_data_ptr->tail * sizeof(uint32_t), in debug_synch_queue_ddr()
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| /openbmc/linux/lib/ |
| H A D | list_sort.c | 24 *tail = a; in merge()
25 tail = &a->next; in merge()
28 *tail = b; in merge()
32 *tail = b; in merge()
36 *tail = a; in merge()
63 tail = a; in merge_final()
70 tail = b; in merge_final()
80 tail->next = b; in merge_final()
92 tail = b; in merge_final()
220 tail = &(*tail)->prev; in list_sort()
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| /openbmc/linux/tools/lib/ |
| H A D | list_sort.c | 23 *tail = a; in merge()
24 tail = &a->next; in merge()
27 *tail = b; in merge()
31 *tail = b; in merge()
35 *tail = a; in merge()
62 tail = a; in merge_final()
69 tail = b; in merge_final()
79 tail->next = b; in merge_final()
91 tail = b; in merge_final()
219 tail = &(*tail)->prev; in list_sort()
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| /openbmc/linux/arch/arm64/kernel/ |
| H A D | perf_callchain.c | 23 user_backtrace(struct frame_tail __user *tail, in user_backtrace() argument
31 if (!access_ok(tail, sizeof(buftail))) in user_backtrace()
49 if (tail >= buftail.fp) in user_backtrace()
78 if (!access_ok(tail, sizeof(buftail))) in compat_user_backtrace()
94 if (tail + 1 >= (struct compat_frame_tail __user *) in compat_user_backtrace()
114 struct frame_tail __user *tail; in perf_callchain_user() local
119 tail && !((unsigned long)tail & 0x7)) in perf_callchain_user()
120 tail = user_backtrace(tail, entry); in perf_callchain_user()
124 struct compat_frame_tail __user *tail; in perf_callchain_user() local
129 tail && !((unsigned long)tail & 0x3)) in perf_callchain_user()
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| /openbmc/u-boot/lib/ |
| H A D | membuff.c | 18 mb->tail = mb->start; in membuff_purge()
39 if (mb->head >= mb->tail) { in membuff_putrawflex()
109 if (mb->head > mb->tail) { in membuff_getraw()
111 *data = mb->tail; in membuff_getraw()
120 mb->tail += len; in membuff_getraw()
130 *data = mb->tail; in membuff_getraw()
135 mb->tail += len; in membuff_getraw()
137 mb->tail = mb->start; in membuff_getraw()
274 mb->tail = mb->start; in membuff_makecontig()
353 memmove(mb->tail + by, mb->tail, orig - oldtail); in membuff_extend_by()
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| H A D | list_sort.c | 30 tail->next = a; in merge()
33 tail->next = b; in merge()
36 tail = tail->next; in merge()
38 tail->next = a?:b; in merge()
60 tail->next = a; in merge_and_restore_back_links()
61 a->prev = tail; in merge_and_restore_back_links()
64 tail->next = b; in merge_and_restore_back_links()
68 tail = tail->next; in merge_and_restore_back_links()
79 (*cmp)(priv, tail->next, tail->next); in merge_and_restore_back_links()
81 tail->next->prev = tail; in merge_and_restore_back_links()
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| /openbmc/qemu/monitor/ |
| H A D | qmp-cmds-control.c | 142 GenericList *tail; in split_off_generic_list() local
144 for (tail = list; tail; tail = tail->next) { in split_off_generic_list()
145 if (splitp(tail)) { in split_off_generic_list()
146 *split_tailp = tail; in split_off_generic_list()
149 *keep_tailp = tail; in split_off_generic_list()
150 keep_tailp = &tail->next; in split_off_generic_list()
161 strList *tail; in is_in() local
163 for (tail = list; tail; tail = tail->next) { in is_in()
185 SchemaInfoList *tail; in zap_deprecated() local
191 for (tail = schema; tail; tail = tail->next) { in zap_deprecated()
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| /openbmc/linux/Documentation/translations/zh_CN/core-api/ |
| H A D | circular-buffers.rst | 55 (2) 'tail'索引 - 消费者在缓冲区中找到下一个元素的位置。
57 通常，当tail指针等于head指针时，表明缓冲区是空的；而当head指针比tail指针少一个时，
60 添加元素时，递增head索引；删除元素时，递增tail索引。tail索引不应该跳过head索引，
111 产者控制着head索引，但消费者可能仍然在另一个CPU上耗尽缓冲区并移动tail索引。
116 者控制着tail索引，但生产者可能仍然在另一个CPU上填充缓冲区并移动head索引。
146 unsigned long tail = READ_ONCE(buffer->tail);
181 unsigned long tail = buffer->tail;
186 struct item *item = buffer[tail];
190 /* 在递增tail之前完成对描述符的读取。 */
191 smp_store_release(buffer->tail,
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| /openbmc/qemu/tests/qtest/libqos/ |
| H A D | qos_external.c | 42 MachineInfoList *tail; in machines_apply_to_node() local
44 for (tail = mach_info; tail; tail = tail->next) { in machines_apply_to_node()
45 machine_apply_to_node(tail->value->name); in machines_apply_to_node()
46 if (tail->value->alias) { in machines_apply_to_node()
47 machine_apply_to_node(tail->value->alias); in machines_apply_to_node()
62 ObjectTypeInfoList *tail; in types_apply_to_node() local
64 for (tail = type_info; tail; tail = tail->next) { in types_apply_to_node()
65 type_apply_to_node(tail->value->name, tail->value->abstract); in types_apply_to_node()
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| /openbmc/linux/drivers/rpmsg/ |
| H A D | qcom_glink_smem.c | 53 __le32 *tail; member
70 u32 tail; in glink_smem_rx_avail() local
86 tail = le32_to_cpu(*pipe->tail); in glink_smem_rx_avail()
99 u32 tail; in glink_smem_rx_peek() local
101 tail = le32_to_cpu(*pipe->tail); in glink_smem_rx_peek()
118 u32 tail; in glink_smem_rx_advance() local
120 tail = le32_to_cpu(*pipe->tail); in glink_smem_rx_advance()
122 tail += count; in glink_smem_rx_advance()
126 *pipe->tail = cpu_to_le32(tail); in glink_smem_rx_advance()
133 u32 tail; in glink_smem_tx_avail() local
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| H A D | qcom_glink_rpm.c | 51 void __iomem *tail; member
73 unsigned int tail; in glink_rpm_rx_avail() local
76 tail = readl(pipe->tail); in glink_rpm_rx_avail()
78 if (head < tail) in glink_rpm_rx_avail()
91 tail = readl(pipe->tail); in glink_rpm_rx_peek()
92 tail += offset; in glink_rpm_rx_peek()
114 tail = readl(pipe->tail); in glink_rpm_rx_advance()
116 tail += count; in glink_rpm_rx_advance()
120 writel(tail, pipe->tail); in glink_rpm_rx_advance()
130 tail = readl(pipe->tail); in glink_rpm_tx_avail()
[all …]
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| /openbmc/linux/drivers/infiniband/sw/rdmavt/ |
| H A D | cq.c | 34 u32 tail; in rvt_cq_enter() local
42 tail = RDMA_READ_UAPI_ATOMIC(u_wc->tail); in rvt_cq_enter()
47 tail = k_wc->tail; in rvt_cq_enter()
386 tail = RDMA_READ_UAPI_ATOMIC(old_u_wc->tail); in rvt_resize_cq()
390 tail = old_k_wc->tail; in rvt_resize_cq()
411 tail = 0; in rvt_resize_cq()
413 tail++; in rvt_resize_cq()
482 u32 tail; in rvt_poll_cq() local
491 tail = wc->tail; in rvt_poll_cq()
503 tail++; in rvt_poll_cq()
[all …]
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| /openbmc/linux/include/linux/ |
| H A D | circ_buf.h | 12 int tail; member
16 #define CIRC_CNT(head,tail,size) (((head) - (tail)) & ((size)-1)) argument
21 #define CIRC_SPACE(head,tail,size) CIRC_CNT((tail),((head)+1),(size)) argument
26 #define CIRC_CNT_TO_END(head,tail,size) \ argument
27 ({int end = (size) - (tail); \
32 #define CIRC_SPACE_TO_END(head,tail,size) \ argument
34 int n = (end + (tail)) & ((size)-1); \
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| /openbmc/linux/drivers/net/ethernet/intel/fm10k/ |
| H A D | fm10k_mbx.c | 17 fifo->tail = 0; in fm10k_fifo_init()
137 if (len > tail) in fm10k_mbx_index_len()
156 return (tail > mbx->tail) ? --tail : ++tail; in fm10k_mbx_tail_add()
172 return (tail < mbx->tail) ? ++tail : --tail; in fm10k_mbx_tail_sub()
346 tail++; in fm10k_mbx_write_copy()
360 if (!tail) in fm10k_mbx_write_copy()
361 tail++; in fm10k_mbx_write_copy()
439 tail += end; in fm10k_mbx_read_copy()
979 if (!tail || (tail == FM10K_MSG_HDR_MASK(TAIL))) in fm10k_mbx_validate_msg_hdr()
995 if (tail) in fm10k_mbx_validate_msg_hdr()
[all …]
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| /openbmc/linux/arch/arm/kernel/ |
| H A D | perf_callchain.c | 34 user_backtrace(struct frame_tail __user *tail, in user_backtrace() argument
40 if (!access_ok(tail, sizeof(buftail))) in user_backtrace()
44 err = __copy_from_user_inatomic(&buftail, tail, sizeof(buftail)); in user_backtrace()
56 if (tail + 1 >= buftail.fp) in user_backtrace()
65 struct frame_tail __user *tail; in perf_callchain_user() local
72 tail = (struct frame_tail __user *)regs->ARM_fp - 1; in perf_callchain_user()
75 tail && !((unsigned long)tail & 0x3)) in perf_callchain_user()
76 tail = user_backtrace(tail, entry); in perf_callchain_user()
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| /openbmc/linux/drivers/gpu/drm/i915/gt/ |
| H A D | intel_ring.h | 26 void intel_ring_reset(struct intel_ring *ring, u32 tail);
91 assert_ring_tail_valid(const struct intel_ring *ring, unsigned int tail) in assert_ring_tail_valid() argument
95 GEM_BUG_ON(!intel_ring_offset_valid(ring, tail)); in assert_ring_tail_valid()
112 GEM_BUG_ON(cacheline(tail) == cacheline(head) && tail < head); in assert_ring_tail_valid()
117 intel_ring_set_tail(struct intel_ring *ring, unsigned int tail) in intel_ring_set_tail() argument
125 assert_ring_tail_valid(ring, tail); in intel_ring_set_tail()
126 ring->tail = tail; in intel_ring_set_tail()
127 return tail; in intel_ring_set_tail()
131 __intel_ring_space(unsigned int head, unsigned int tail, unsigned int size) in __intel_ring_space() argument
139 return (head - tail - CACHELINE_BYTES) & (size - 1); in __intel_ring_space()
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| /openbmc/linux/drivers/net/wireguard/ |
| H A D | queueing.c | 56 queue->head = queue->tail = STUB(queue); in wg_prev_queue_init()
82 struct sk_buff *tail = queue->tail, *next = smp_load_acquire(&NEXT(tail)); in wg_prev_queue_dequeue() local
84 if (tail == STUB(queue)) { in wg_prev_queue_dequeue()
87 queue->tail = next; in wg_prev_queue_dequeue()
88 tail = next; in wg_prev_queue_dequeue()
92 queue->tail = next; in wg_prev_queue_dequeue()
94 return tail; in wg_prev_queue_dequeue()
96 if (tail != READ_ONCE(queue->head)) in wg_prev_queue_dequeue()
99 next = smp_load_acquire(&NEXT(tail)); in wg_prev_queue_dequeue()
101 queue->tail = next; in wg_prev_queue_dequeue()
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| /openbmc/qemu/tests/qtest/ |
| H A D | qmp-cmd-test.c | 136 SchemaInfoList *tail; in qmp_schema_init() local
153 for (tail = schema->list; tail; tail = tail->next) { in qmp_schema_init()
154 g_hash_table_insert(schema->hash, tail->value->name, tail->value); in qmp_schema_init()
171 SchemaInfoObjectMemberList *tail; in object_type_has_mandatory_members() local
175 for (tail = type->u.object.members; tail; tail = tail->next) { in object_type_has_mandatory_members()
176 if (!tail->value->q_default) { in object_type_has_mandatory_members()
186 SchemaInfoList *tail; in add_query_tests() local
191 for (tail = schema->list; tail; tail = tail->next) { in add_query_tests()
192 si = tail->value; in add_query_tests()
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| /openbmc/linux/kernel/locking/ |
| H A D | qspinlock.c | 118 u32 tail; in encode_tail() local
120 tail = (cpu + 1) << _Q_TAIL_CPU_OFFSET; in encode_tail()
123 return tail; in encode_tail()
128 int cpu = (tail >> _Q_TAIL_CPU_OFFSET) - 1; in decode_tail()
183 return (u32)xchg_relaxed(&lock->tail, in xchg_tail()
184 tail >> _Q_TAIL_OFFSET) << _Q_TAIL_OFFSET; in xchg_tail()
226 new = (val & _Q_LOCKED_PENDING_MASK) | tail; in xchg_tail()
319 u32 old, tail; in queued_spin_lock_slowpath() local
403 tail = encode_tail(smp_processor_id(), idx); in queued_spin_lock_slowpath()
463 old = xchg_tail(lock, tail); in queued_spin_lock_slowpath()
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| /openbmc/qemu/tests/unit/ |
| H A D | test-opts-visitor.c | 180 intList *tail; in test_opts_range_unvisited() local
194 tail = list; in test_opts_range_unvisited()
196 g_assert_cmpint(tail->value, ==, 0); in test_opts_range_unvisited()
197 tail = (intList *)visit_next_list(v, (GenericList *)tail, sizeof(*list)); in test_opts_range_unvisited()
198 g_assert(tail); in test_opts_range_unvisited()
201 tail = (intList *)visit_next_list(v, (GenericList *)tail, sizeof(*list)); in test_opts_range_unvisited()
202 g_assert(tail); in test_opts_range_unvisited()
220 intList *tail; in test_opts_range_beyond() local
235 tail = list; in test_opts_range_beyond()
238 tail = (intList *)visit_next_list(v, (GenericList *)tail, sizeof(*tail)); in test_opts_range_beyond()
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| /openbmc/linux/include/drm/ |
| H A D | spsc_queue.h | 43 atomic_long_t tail; member
51 atomic_long_set(&queue->tail, (long)&queue->head); in spsc_queue_init()
67 struct spsc_node **tail; in spsc_queue_push() local
73 tail = (struct spsc_node **)atomic_long_xchg(&queue->tail, (long)&node->next); in spsc_queue_push()
74 WRITE_ONCE(*tail, node); in spsc_queue_push()
85 return tail == &queue->head; in spsc_queue_push()
107 if (atomic_long_cmpxchg(&queue->tail, in spsc_queue_pop()
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| /openbmc/qemu/hw/net/rocker/ |
| H A D | rocker_desc.c | 29 uint32_t tail; member
101 return ring->head == ring->tail; in desc_ring_empty()
137 ring->head = ring->tail = 0; in desc_ring_set_size()
187 return desc_read(ring, ring->tail); in __desc_ring_fetch_desc()
205 desc_write(ring, ring->tail); in __desc_ring_post_desc()
206 ring->tail = (ring->tail + 1) % ring->size; in __desc_ring_post_desc()
254 uint32_t tail = ring->tail; in desc_ring_set_head() local
267 if (((head < tail) && ((new >= tail) || (new < head))) || in desc_ring_set_head()
268 ((head > tail) && ((new >= tail) && (new < head)))) { in desc_ring_set_head()
291 return ring->tail; in desc_ring_get_tail()
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| /openbmc/linux/drivers/media/test-drivers/vidtv/ |
| H A D | vidtv_channel.c | 182 tail = vidtv_psi_eit_event_init(tail, event_id); in vidtv_channel_eit_event_cat_into_new()
183 if (!tail) { in vidtv_channel_eit_event_cat_into_new()
192 head = tail; in vidtv_channel_eit_event_cat_into_new()
229 tail = vidtv_psi_sdt_service_init(tail, in vidtv_channel_sdt_serv_cat_into_new()
233 if (!tail) in vidtv_channel_sdt_serv_cat_into_new()
242 head = tail; in vidtv_channel_sdt_serv_cat_into_new()
284 tail = vidtv_psi_pat_program_init(tail, in vidtv_channel_pat_prog_cat_into_new()
287 if (!tail) { in vidtv_channel_pat_prog_cat_into_new()
293 head = tail; in vidtv_channel_pat_prog_cat_into_new()
341 tail = vidtv_psi_pmt_stream_init(tail, in vidtv_channel_pmt_match_sections()
[all …]
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| /openbmc/qemu/util/ |
| H A D | yank.c | 156 YankInstanceList *tail; in qmp_yank() local
161 for (tail = instances; tail; tail = tail->next) { in qmp_yank()
162 entry = yank_find_entry(tail->value); in qmp_yank()
168 for (tail = instances; tail; tail = tail->next) { in qmp_yank()
169 entry = yank_find_entry(tail->value); in qmp_yank()
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| /openbmc/qemu/include/qapi/ |
| H A D | util.h | 53 #define QAPI_LIST_APPEND(tail, element) do { \ argument
54 *(tail) = g_malloc0(sizeof(**(tail))); \
55 (*(tail))->value = (element); \
56 (tail) = &(*(tail))->next; \
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