| /drivers/staging/media/atomisp/pci/hive_isp_css_common/host/ |
| D | debug_private.h | 30 return (debug_data_ptr->head == debug_data_ptr->tail); in is_debug_buffer_empty()
56 if (remote_tail > debug_data_ptr->tail) { in debug_synch_queue()
57 size_t delta = remote_tail - debug_data_ptr->tail; in debug_synch_queue()
60 debug_data_ptr->tail * sizeof(uint32_t), in debug_synch_queue()
61 (void *)&debug_data_ptr->buf[debug_data_ptr->tail], delta * sizeof(uint32_t)); in debug_synch_queue()
62 } else if (remote_tail < debug_data_ptr->tail) { in debug_synch_queue()
63 size_t delta = DEBUG_BUF_SIZE - debug_data_ptr->tail; in debug_synch_queue()
66 debug_data_ptr->tail * sizeof(uint32_t), in debug_synch_queue()
67 (void *)&debug_data_ptr->buf[debug_data_ptr->tail], delta * sizeof(uint32_t)); in debug_synch_queue()
72 debug_data_ptr->tail = remote_tail; in debug_synch_queue()
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| /drivers/rpmsg/ |
| D | qcom_glink_smem.c | 39 __le32 *tail; member
55 u32 tail; in glink_smem_rx_avail() local
71 tail = le32_to_cpu(*pipe->tail); in glink_smem_rx_avail()
73 if (head < tail) in glink_smem_rx_avail()
74 return pipe->native.length - tail + head; in glink_smem_rx_avail()
76 return head - tail; in glink_smem_rx_avail()
84 u32 tail; in glink_smem_rx_peak() local
86 tail = le32_to_cpu(*pipe->tail); in glink_smem_rx_peak()
87 tail += offset; in glink_smem_rx_peak()
88 if (tail >= pipe->native.length) in glink_smem_rx_peak()
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| D | qcom_glink_rpm.c | 50 void __iomem *tail; member
60 unsigned int tail; in glink_rpm_rx_avail() local
63 tail = readl(pipe->tail); in glink_rpm_rx_avail()
65 if (head < tail) in glink_rpm_rx_avail()
66 return pipe->native.length - tail + head; in glink_rpm_rx_avail()
68 return head - tail; in glink_rpm_rx_avail()
75 unsigned int tail; in glink_rpm_rx_peak() local
78 tail = readl(pipe->tail); in glink_rpm_rx_peak()
79 tail += offset; in glink_rpm_rx_peak()
80 if (tail >= pipe->native.length) in glink_rpm_rx_peak()
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| /drivers/net/ethernet/intel/fm10k/ |
| D | fm10k_mbx.c | 17 fifo->tail = 0; in fm10k_fifo_init()
28 return fifo->tail - fifo->head; in fm10k_fifo_used()
39 return fifo->size + fifo->head - fifo->tail; in fm10k_fifo_unused()
50 return fifo->head == fifo->tail; in fm10k_fifo_empty()
74 return (fifo->tail + offset) & (fifo->size - 1); in fm10k_fifo_tail_offset()
120 fifo->head = fifo->tail; in fm10k_fifo_drop_all()
132 static u16 fm10k_mbx_index_len(struct fm10k_mbx_info *mbx, u16 head, u16 tail) in fm10k_mbx_index_len() argument
134 u16 len = tail - head; in fm10k_mbx_index_len()
137 if (len > tail) in fm10k_mbx_index_len()
153 u16 tail = (mbx->tail + offset + 1) & ((mbx->mbmem_len << 1) - 1); in fm10k_mbx_tail_add() local
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| /drivers/infiniband/sw/rdmavt/ |
| 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()
61 if (unlikely(next == tail || cq->cq_full)) { in rvt_cq_enter()
319 RDMA_READ_UAPI_ATOMIC(cq->queue->tail)) in rvt_req_notify_cq()
322 if (cq->kqueue->head != cq->kqueue->tail) in rvt_req_notify_cq()
341 u32 head, tail, n; in rvt_resize_cq() local
386 tail = RDMA_READ_UAPI_ATOMIC(old_u_wc->tail); in rvt_resize_cq()
390 tail = old_k_wc->tail; in rvt_resize_cq()
395 if (tail > (u32)cq->ibcq.cqe) in rvt_resize_cq()
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| D | srq.c | 137 u32 sz, size, n, head, tail; in rvt_modify_srq() local
175 tail = RDMA_READ_UAPI_ATOMIC(owq->tail); in rvt_modify_srq()
179 tail = okwq->tail; in rvt_modify_srq()
181 if (head >= srq->rq.size || tail >= srq->rq.size) { in rvt_modify_srq()
186 if (n < tail) in rvt_modify_srq()
187 n += srq->rq.size - tail; in rvt_modify_srq()
189 n -= tail; in rvt_modify_srq()
196 while (tail != head) { in rvt_modify_srq()
200 wqe = rvt_get_rwqe_ptr(&srq->rq, tail); in rvt_modify_srq()
207 if (++tail >= srq->rq.size) in rvt_modify_srq()
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| D | rc.c | 66 u32 tail; in rvt_compute_aeth() local
73 tail = RDMA_READ_UAPI_ATOMIC(qp->r_rq.wq->tail); in rvt_compute_aeth()
76 tail = READ_ONCE(qp->r_rq.kwq->tail); in rvt_compute_aeth()
80 if (tail >= qp->r_rq.size) in rvt_compute_aeth()
81 tail = 0; in rvt_compute_aeth()
88 credits = rvt_get_rq_count(&qp->r_rq, head, tail); in rvt_compute_aeth()
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| /drivers/net/wireguard/ |
| 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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| /drivers/gpu/drm/i915/gt/ |
| 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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| /drivers/media/test-drivers/vidtv/ |
| D | vidtv_channel.c | 165 struct vidtv_psi_table_eit_event *tail = NULL; in vidtv_channel_eit_event_cat_into_new() local
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()
189 vidtv_psi_desc_assign(&tail->descriptor, desc); in vidtv_channel_eit_event_cat_into_new()
192 head = tail; in vidtv_channel_eit_event_cat_into_new()
211 struct vidtv_psi_table_sdt_service *tail = NULL; in vidtv_channel_sdt_serv_cat_into_new() local
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()
239 vidtv_psi_desc_assign(&tail->descriptor, desc); in vidtv_channel_sdt_serv_cat_into_new()
242 head = tail; in vidtv_channel_sdt_serv_cat_into_new()
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| /drivers/tty/ |
| D | n_tty.c | 168 static void tty_copy(struct tty_struct *tty, void *to, size_t tail, size_t n) in tty_copy() argument
171 size_t size = N_TTY_BUF_SIZE - tail; in tty_copy()
172 void *from = read_buf_addr(ldata, tail); in tty_copy()
627 size_t tail; in __process_echoes() local
632 tail = ldata->echo_tail; in __process_echoes()
633 while (MASK(ldata->echo_commit) != MASK(tail)) { in __process_echoes()
634 c = echo_buf(ldata, tail); in __process_echoes()
644 if (MASK(ldata->echo_commit) == MASK(tail + 1)) in __process_echoes()
651 op = echo_buf(ldata, tail + 1); in __process_echoes()
657 if (MASK(ldata->echo_commit) == MASK(tail + 2)) in __process_echoes()
[all …]
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| D | tty_buffer.c | 137 buf->tail = &buf->sentinel; in tty_buffer_free_all()
267 b = buf->tail; in __tty_buffer_request_room()
279 buf->tail = n; in __tty_buffer_request_room()
323 struct tty_buffer *tb = port->buf.tail; in tty_insert_flip_string_fixed_flag()
361 struct tty_buffer *tb = port->buf.tail; in tty_insert_flip_string_flags()
396 tb = port->buf.tail; in __tty_insert_flip_char()
424 struct tty_buffer *tb = port->buf.tail; in tty_prepare_flip_string()
536 static inline void tty_flip_buffer_commit(struct tty_buffer *tail) in tty_flip_buffer_commit() argument
542 smp_store_release(&tail->commit, tail->used); in tty_flip_buffer_commit()
560 tty_flip_buffer_commit(buf->tail); in tty_flip_buffer_push()
[all …]
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| /drivers/infiniband/hw/vmw_pvrdma/ |
| D | pvrdma_ring.h | 89 const __u32 tail = atomic_read(&r->prod_tail); in pvrdma_idx_ring_has_space() local
92 if (pvrdma_idx_valid(tail, max_elems) && in pvrdma_idx_ring_has_space()
94 *out_tail = tail & (max_elems - 1); in pvrdma_idx_ring_has_space()
95 return tail != (head ^ max_elems); in pvrdma_idx_ring_has_space()
103 const __u32 tail = atomic_read(&r->prod_tail); in pvrdma_idx_ring_has_data() local
106 if (pvrdma_idx_valid(tail, max_elems) && in pvrdma_idx_ring_has_data()
109 return tail != head; in pvrdma_idx_ring_has_data()
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| /drivers/of/ |
| D | pdt.c | 114 struct property *head, *tail; in of_pdt_build_prop_list() local
116 head = tail = of_pdt_build_one_prop(node, NULL, in of_pdt_build_prop_list()
119 tail->next = of_pdt_build_one_prop(node, NULL, NULL, NULL, 0); in of_pdt_build_prop_list()
120 tail = tail->next; in of_pdt_build_prop_list()
121 while(tail) { in of_pdt_build_prop_list()
122 tail->next = of_pdt_build_one_prop(node, tail->name, in of_pdt_build_prop_list()
124 tail = tail->next; in of_pdt_build_prop_list()
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| /drivers/s390/block/ |
| D | dasd_eer.c | 92 int tail; member
106 if (eerb->head < eerb->tail) in dasd_eer_get_free_bytes()
107 return eerb->tail - eerb->head - 1; in dasd_eer_get_free_bytes()
108 return eerb->buffersize - eerb->head + eerb->tail -1; in dasd_eer_get_free_bytes()
118 if (eerb->head >= eerb->tail) in dasd_eer_get_filled_bytes()
119 return eerb->head - eerb->tail; in dasd_eer_get_filled_bytes()
120 return eerb->buffersize - eerb->tail + eerb->head; in dasd_eer_get_filled_bytes()
167 tailindex = eerb->tail / PAGE_SIZE; in dasd_eer_read_buffer()
168 localtail = eerb->tail % PAGE_SIZE; in dasd_eer_read_buffer()
173 eerb->tail += len; in dasd_eer_read_buffer()
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| /drivers/crypto/caam/ |
| D | jr.c | 206 int hw_idx, sw_idx, i, head, tail; in caam_jr_dequeue() local
219 sw_idx = tail = jrp->tail; in caam_jr_dequeue()
222 for (i = 0; CIRC_CNT(head, tail + i, JOBR_DEPTH) >= 1; i++) { in caam_jr_dequeue()
223 sw_idx = (tail + i) & (JOBR_DEPTH - 1); in caam_jr_dequeue()
230 BUG_ON(CIRC_CNT(head, tail + i, JOBR_DEPTH) <= 0); in caam_jr_dequeue()
267 if (sw_idx == tail) { in caam_jr_dequeue()
269 tail = (tail + 1) & (JOBR_DEPTH - 1); in caam_jr_dequeue()
270 } while (CIRC_CNT(head, tail, JOBR_DEPTH) >= 1 && in caam_jr_dequeue()
271 jrp->entinfo[tail].desc_addr_dma == 0); in caam_jr_dequeue()
273 jrp->tail = tail; in caam_jr_dequeue()
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| /drivers/net/wwan/iosm/ |
| D | iosm_ipc_protocol_ops.c | 227 u32 tail; in ipc_protocol_ul_td_send() local
238 tail = pipe->old_tail; in ipc_protocol_ul_td_send()
241 if (head < tail) in ipc_protocol_ul_td_send()
242 free_elements = tail - head - 1; in ipc_protocol_ul_td_send()
245 pipe->nr_of_entries - head + ((s32)tail - 1); in ipc_protocol_ul_td_send()
330 u32 tail; in ipc_protocol_dl_td_prepare() local
336 tail = le32_to_cpu(ipc_protocol->p_ap_shm->tail_array[pipe->pipe_nr]); in ipc_protocol_dl_td_prepare()
342 if (new_head == tail) in ipc_protocol_dl_td_prepare()
435 u32 *tail) in ipc_protocol_get_head_tail_index() argument
442 if (tail) in ipc_protocol_get_head_tail_index()
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| /drivers/gpu/drm/mga/ |
| D | mga_dma.c | 84 primary->tail = 0; in mga_do_dma_reset()
106 u32 head, tail; in mga_do_dma_flush() local
120 if (primary->tail == primary->last_flush) { in mga_do_dma_flush()
125 tail = primary->tail + dev_priv->primary->offset; in mga_do_dma_flush()
139 primary->last_flush = primary->tail; in mga_do_dma_flush()
143 if (head <= tail) in mga_do_dma_flush()
144 primary->space = primary->size - primary->tail; in mga_do_dma_flush()
146 primary->space = head - tail; in mga_do_dma_flush()
149 DRM_DEBUG(" tail = 0x%06lx\n", (unsigned long)(tail - dev_priv->primary->offset)); in mga_do_dma_flush()
153 MGA_WRITE(MGA_PRIMEND, tail | dev_priv->dma_access); in mga_do_dma_flush()
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| /drivers/net/wireless/broadcom/b43/ |
| D | pio.c | 333 u8 *tail = wl->pio_tailspace; in tx_write_2byte_queue() local
339 tail[0] = data[data_len - 1]; in tx_write_2byte_queue()
340 tail[1] = 0; in tx_write_2byte_queue()
341 b43_block_write(dev, tail, 2, in tx_write_2byte_queue()
387 u8 *tail = wl->pio_tailspace; in tx_write_4byte_queue() local
390 memset(tail, 0, 4); in tx_write_4byte_queue()
397 tail[0] = data[data_len - 3]; in tx_write_4byte_queue()
398 tail[1] = data[data_len - 2]; in tx_write_4byte_queue()
399 tail[2] = data[data_len - 1]; in tx_write_4byte_queue()
403 tail[0] = data[data_len - 2]; in tx_write_4byte_queue()
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| /drivers/gpu/drm/i915/gt/uc/ |
| D | intel_guc_ct.c | 137 ctb->tail = 0; in guc_ct_buffer_reset()
139 space = CIRC_SPACE(ctb->tail, ctb->head, ctb->size) - ctb->resv_space; in guc_ct_buffer_reset()
409 u32 tail = ctb->tail; in ct_write() local
420 GEM_BUG_ON(tail > size); in ct_write()
423 if (unlikely(tail != READ_ONCE(desc->tail))) { in ct_write()
425 desc->tail, tail); in ct_write()
453 tail, 4, &header, 4, &hxg, 4 * (len - 1), &action[1]); in ct_write()
455 cmds[tail] = header; in ct_write()
456 tail = (tail + 1) % size; in ct_write()
458 cmds[tail] = hxg; in ct_write()
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| /drivers/gpu/drm/nouveau/nvkm/falcon/ |
| D | msgq.c | 47 u32 tail = nvkm_falcon_rd32(msgq->qmgr->falcon, msgq->tail_reg); in nvkm_falcon_msgq_empty() local
48 return head == tail; in nvkm_falcon_msgq_empty()
55 u32 head, tail, available; in nvkm_falcon_msgq_pop() local
62 tail = msgq->position; in nvkm_falcon_msgq_pop()
64 available = head - tail; in nvkm_falcon_msgq_pop()
71 nvkm_falcon_read_dmem(falcon, tail, size, 0, data); in nvkm_falcon_msgq_pop()
162 msgq->tail_reg = falcon->func->msgq.tail; in nvkm_falcon_msgq_recv_initmsg()
163 msgq->offset = nvkm_falcon_rd32(falcon, falcon->func->msgq.tail); in nvkm_falcon_msgq_recv_initmsg()
183 msgq->tail_reg = func->msgq.tail + index * func->msgq.stride; in nvkm_falcon_msgq_init()
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| /drivers/net/ethernet/amazon/ena/ |
| D | ena_eth_com.h | 74 u16 tail, next_to_comp, cnt; in ena_com_free_q_entries() local
77 tail = io_sq->tail; in ena_com_free_q_entries()
78 cnt = tail - next_to_comp; in ena_com_free_q_entries()
153 u16 tail = io_sq->tail; in ena_com_write_sq_doorbell() local
157 io_sq->qid, tail); in ena_com_write_sq_doorbell()
159 writel(tail, io_sq->db_addr); in ena_com_write_sq_doorbell()
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| /drivers/input/serio/ |
| D | userio.c | 42 u8 tail; member
65 if (userio->head == userio->tail) in userio_device_write()
141 userio->tail, in userio_char_read()
145 memcpy(buf, &userio->buf[userio->tail], copylen); in userio_char_read()
146 userio->tail = (userio->tail + copylen) % in userio_char_read()
167 userio->head != userio->tail); in userio_char_read()
257 if (userio->head != userio->tail) in userio_char_poll()
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| /drivers/infiniband/hw/qib/ |
| D | qib_sdma.c | 519 u16 tail; in qib_sdma_verbs_send() local
551 tail = ppd->sdma_descq_tail; in qib_sdma_verbs_send()
552 descqp = &ppd->sdma_descq[tail].qw[0]; in qib_sdma_verbs_send()
557 if (++tail == ppd->sdma_descq_cnt) { in qib_sdma_verbs_send()
558 tail = 0; in qib_sdma_verbs_send()
563 tx->txreq.start_idx = tail; in qib_sdma_verbs_send()
587 if (++tail == ppd->sdma_descq_cnt) { in qib_sdma_verbs_send()
588 tail = 0; in qib_sdma_verbs_send()
597 if (!tail) in qib_sdma_verbs_send()
607 tx->txreq.next_descq_idx = tail; in qib_sdma_verbs_send()
[all …]
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| /drivers/net/ethernet/apm/xgene-v2/ |
| D | main.c | 72 u8 tail = ring->tail; in xge_refill_buffers() local
79 raw_desc = &ring->raw_desc[tail]; in xge_refill_buffers()
93 ring->pkt_info[tail].skb = skb; in xge_refill_buffers()
94 ring->pkt_info[tail].dma_addr = dma_addr; in xge_refill_buffers()
106 tail = (tail + 1) & slots; in xge_refill_buffers()
109 ring->tail = tail; in xge_refill_buffers()
181 u8 tail; in xge_start_xmit() local
185 tail = tx_ring->tail; in xge_start_xmit()
187 raw_desc = &tx_ring->raw_desc[tail]; in xge_start_xmit()
210 tx_ring->pkt_info[tail].skb = skb; in xge_start_xmit()
[all …]
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