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Searched refs:ring_size (Results 1 – 25 of 243) sorted by relevance

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/linux-6.12.1/tools/virtio/ringtest/
Dvirtio_ring_0_9.c70 ret = posix_memalign(&p, 0x1000, vring_size(ring_size, 0x1000)); in alloc_ring()
75 memset(p, 0, vring_size(ring_size, 0x1000)); in alloc_ring()
76 vring_init(&ring, ring_size, p, 0x1000); in alloc_ring()
85 for (i = 0; i < ring_size - 1; i++) in alloc_ring()
89 guest.num_free = ring_size; in alloc_ring()
90 data = malloc(ring_size * sizeof *data); in alloc_ring()
95 memset(data, 0, ring_size * sizeof *data); in alloc_ring()
111 head = (ring_size - 1) & (guest.avail_idx++); in add_inbuf()
136 ring.avail->ring[avail & (ring_size - 1)] = in add_inbuf()
137 (head | (avail & ~(ring_size - 1))) ^ 0x8000; in add_inbuf()
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Dring.c82 ret = posix_memalign((void **)&ring, 0x1000, ring_size * sizeof *ring); in alloc_ring()
97 for (i = 0; i < ring_size; ++i) { in alloc_ring()
103 guest.num_free = ring_size; in alloc_ring()
104 data = calloc(ring_size, sizeof(*data)); in alloc_ring()
120 head = (ring_size - 1) & (guest.avail_idx++); in add_inbuf()
145 unsigned head = (ring_size - 1) & guest.last_used_idx; in get_buf()
154 index = ring[head].index & (ring_size - 1); in get_buf()
166 unsigned head = (ring_size - 1) & guest.last_used_idx; in used_empty()
221 unsigned head = (ring_size - 1) & host.used_idx; in avail_empty()
228 unsigned head = (ring_size - 1) & host.used_idx; in use_buf()
Dmain.c29 unsigned ring_size = 256; variable
288 ring_size, in help()
322 ring_size = strtol(optarg, &endptr, 0); in main()
323 assert(ring_size && !(ring_size & (ring_size - 1))); in main()
/linux-6.12.1/include/xen/interface/io/
Dring.h357 static inline RING_IDX name##_mask(RING_IDX idx, RING_IDX ring_size) \
359 return idx & (ring_size - 1); \
364 RING_IDX ring_size) \
366 return buf + name##_mask(idx, ring_size); \
374 RING_IDX ring_size) \
377 size <= ring_size - *masked_cons) { \
380 memcpy(opaque, buf + *masked_cons, ring_size - *masked_cons); \
381 memcpy((unsigned char *)opaque + ring_size - *masked_cons, buf, \
382 size - (ring_size - *masked_cons)); \
384 *masked_cons = name##_mask(*masked_cons + size, ring_size); \
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/linux-6.12.1/drivers/gpu/drm/amd/amdgpu/
Damdgpu_ih.c42 unsigned ring_size, bool use_bus_addr) in amdgpu_ih_ring_init() argument
48 rb_bufsz = order_base_2(ring_size / 4); in amdgpu_ih_ring_init()
49 ring_size = (1 << rb_bufsz) * 4; in amdgpu_ih_ring_init()
50 ih->ring_size = ring_size; in amdgpu_ih_ring_init()
51 ih->ptr_mask = ih->ring_size - 1; in amdgpu_ih_ring_init()
64 ih->ring = dma_alloc_coherent(adev->dev, ih->ring_size + 8, in amdgpu_ih_ring_init()
70 ih->wptr_addr = dma_addr + ih->ring_size; in amdgpu_ih_ring_init()
71 ih->wptr_cpu = &ih->ring[ih->ring_size / 4]; in amdgpu_ih_ring_init()
72 ih->rptr_addr = dma_addr + ih->ring_size + 4; in amdgpu_ih_ring_init()
73 ih->rptr_cpu = &ih->ring[(ih->ring_size / 4) + 1]; in amdgpu_ih_ring_init()
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Dnavi10_ih.c53 if (adev->irq.ih.ring_size) { in navi10_ih_init_register_offset()
66 if (adev->irq.ih1.ring_size) { in navi10_ih_init_register_offset()
77 if (adev->irq.ih2.ring_size) { in navi10_ih_init_register_offset()
203 if (ih[i]->ring_size) { in navi10_ih_toggle_interrupts()
215 int rb_bufsz = order_base_2(ih->ring_size / 4); in navi10_ih_rb_cntl()
353 if (ih[i]->ring_size) { in navi10_ih_irq_init()
373 if (adev->irq.ih_soft.ring_size) in navi10_ih_irq_init()
474 if ((v < ih->ring_size) && (v != ih->rptr)) in navi10_ih_irq_rearm()
581 adev->irq.ih1.ring_size = 0; in navi10_ih_sw_init()
582 adev->irq.ih2.ring_size = 0; in navi10_ih_sw_init()
Dvega10_ih.c51 if (adev->irq.ih.ring_size) { in vega10_ih_init_register_offset()
64 if (adev->irq.ih1.ring_size) { in vega10_ih_init_register_offset()
75 if (adev->irq.ih2.ring_size) { in vega10_ih_init_register_offset()
148 if (ih[i]->ring_size) { in vega10_ih_toggle_interrupts()
160 int rb_bufsz = order_base_2(ih->ring_size / 4); in vega10_ih_rb_cntl()
285 if (ih[i]->ring_size) { in vega10_ih_irq_init()
303 if (adev->irq.ih_soft.ring_size) in vega10_ih_irq_init()
404 if ((v < ih->ring_size) && (v != ih->rptr)) in vega10_ih_irq_rearm()
Dvega20_ih.c59 if (adev->irq.ih.ring_size) { in vega20_ih_init_register_offset()
72 if (adev->irq.ih1.ring_size) { in vega20_ih_init_register_offset()
83 if (adev->irq.ih2.ring_size) { in vega20_ih_init_register_offset()
157 if (ih[i]->ring_size) { in vega20_ih_toggle_interrupts()
169 int rb_bufsz = order_base_2(ih->ring_size / 4); in vega20_ih_rb_cntl()
321 if (ih[i]->ring_size) { in vega20_ih_irq_init()
355 if (adev->irq.ih_soft.ring_size) in vega20_ih_irq_init()
457 if ((v < ih->ring_size) && (v != ih->rptr)) in vega20_ih_irq_rearm()
Dih_v7_0.c52 if (adev->irq.ih.ring_size) { in ih_v7_0_init_register_offset()
65 if (adev->irq.ih1.ring_size) { in ih_v7_0_init_register_offset()
177 if (ih[i]->ring_size) { in ih_v7_0_toggle_interrupts()
189 int rb_bufsz = order_base_2(ih->ring_size / 4); in ih_v7_0_rb_cntl()
319 if (ih[i]->ring_size) { in ih_v7_0_irq_init()
350 if (adev->irq.ih1.ring_size) { in ih_v7_0_irq_init()
373 if (adev->irq.ih_soft.ring_size) in ih_v7_0_irq_init()
465 if ((v < ih->ring_size) && (v != ih->rptr)) in ih_v7_0_irq_rearm()
/linux-6.12.1/tools/testing/selftests/kvm/
Dcoalesced_io_test.c17 uint32_t ring_size; member
47 for (i = 0; i < io->ring_size - 1; i++) { in guest_code()
97 *(uint64_t *)run->mmio.data == io->mmio_gpa + io->ring_size - 1)) || in vcpu_run_and_verify_io_exit()
100 pio_value == io->pio_port + io->ring_size - 1)), in vcpu_run_and_verify_io_exit()
106 (want_pio ? io->pio_port : io->mmio_gpa) + io->ring_size - 1, run->exit_reason, in vcpu_run_and_verify_io_exit()
122 TEST_ASSERT((ring->last + 1) % io->ring_size == ring->first, in vcpu_run_and_verify_coalesced_io()
124 ring->first, ring->last, io->ring_size, ring_start); in vcpu_run_and_verify_coalesced_io()
126 for (i = 0; i < io->ring_size - 1; i++) { in vcpu_run_and_verify_coalesced_io()
127 uint32_t idx = (ring->first + i) % io->ring_size; in vcpu_run_and_verify_coalesced_io()
214 .ring_size = (getpagesize() - sizeof(struct kvm_coalesced_mmio_ring)) / in main()
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/linux-6.12.1/drivers/crypto/ccp/
Dtee-dev.c25 static int tee_alloc_ring(struct psp_tee_device *tee, int ring_size) in tee_alloc_ring() argument
30 if (!ring_size) in tee_alloc_ring()
36 start_addr = (void *)__get_free_pages(GFP_KERNEL, get_order(ring_size)); in tee_alloc_ring()
40 memset(start_addr, 0x0, ring_size); in tee_alloc_ring()
42 rb_mgr->ring_size = ring_size; in tee_alloc_ring()
57 get_order(rb_mgr->ring_size)); in tee_free_ring()
60 rb_mgr->ring_size = 0; in tee_free_ring()
76 cmd->size = tee->rb_mgr.ring_size; in tee_alloc_cmd_buffer()
91 int ring_size = MAX_RING_BUFFER_ENTRIES * sizeof(struct tee_ring_cmd); in tee_init_ring() local
98 ret = tee_alloc_ring(tee, ring_size); in tee_init_ring()
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/linux-6.12.1/drivers/net/ethernet/intel/idpf/
Didpf_controlq.c39 wr32(hw, cq->reg.tail, (u32)(cq->ring_size - 1)); in idpf_ctlq_init_regs()
51 wr32(hw, cq->reg.len, (cq->ring_size | cq->reg.len_ena_mask)); in idpf_ctlq_init_regs()
65 for (i = 0; i < cq->ring_size; i++) { in idpf_ctlq_init_rxq_bufs()
105 cq->ring_size = 0; in idpf_ctlq_shutdown()
138 cq->ring_size = qinfo->len; in idpf_ctlq_add()
142 cq->next_to_post = cq->ring_size - 1; in idpf_ctlq_add()
323 if (cq->next_to_use == cq->ring_size) in idpf_ctlq_send()
364 if (*clean_count > cq->ring_size) in idpf_ctlq_clean_sq()
391 if (ntc == cq->ring_size) in idpf_ctlq_clean_sq()
429 if (*buff_count > cq->ring_size) in idpf_ctlq_post_rx_buffs()
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Didpf_controlq_setup.c14 size_t size = cq->ring_size * sizeof(struct idpf_ctlq_desc); in idpf_ctlq_alloc_desc_ring()
43 cq->bi.rx_buff = kcalloc(cq->ring_size, sizeof(struct idpf_dma_mem *), in idpf_ctlq_alloc_bufs()
49 for (i = 0; i < cq->ring_size - 1; i++) { in idpf_ctlq_alloc_bufs()
112 for (i = 0; i < cq->ring_size; i++) { in idpf_ctlq_free_bufs()
/linux-6.12.1/drivers/gpu/drm/radeon/
Dradeon_ring.c88 ring->ring_free_dw = rptr + (ring->ring_size / 4); in radeon_ring_free_size()
93 ring->ring_free_dw = ring->ring_size / 4; in radeon_ring_free_size()
114 if (ndw > (ring->ring_size / 4)) in radeon_ring_alloc()
316 size = ring->wptr + (ring->ring_size / 4); in radeon_ring_backup()
383 int radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ring_size, in radeon_ring_init() argument
388 ring->ring_size = ring_size; in radeon_ring_init()
394 r = radeon_bo_create(rdev, ring->ring_size, PAGE_SIZE, true, in radeon_ring_init()
420 ring->ptr_mask = (ring->ring_size / 4) - 1; in radeon_ring_init()
421 ring->ring_free_dw = ring->ring_size / 4; in radeon_ring_init()
476 count = (ring->ring_size / 4) - ring->ring_free_dw; in radeon_debugfs_ring_info_show()
/linux-6.12.1/drivers/xen/
Devtchn.c67 unsigned int ring_size; member
99 return idx & (u->ring_size - 1); in evtchn_ring_offset()
183 if ((prod - cons) < u->ring_size) { in evtchn_interrupt()
240 if (((c ^ p) & u->ring_size) != 0) { in evtchn_read()
241 bytes1 = (u->ring_size - evtchn_ring_offset(u, c)) * in evtchn_read()
327 if (u->nr_evtchns <= u->ring_size) in evtchn_resize_ring()
330 if (u->ring_size == 0) in evtchn_resize_ring()
333 new_size = 2 * u->ring_size; in evtchn_resize_ring()
359 memcpy(new_ring, old_ring, u->ring_size * sizeof(*u->ring)); in evtchn_resize_ring()
360 memcpy(new_ring + u->ring_size, old_ring, in evtchn_resize_ring()
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/linux-6.12.1/drivers/net/ethernet/amazon/ena/
Dena_netdev.h88 #define ENA_TX_RING_IDX_NEXT(idx, ring_size) (((idx) + 1) & ((ring_size) - 1)) argument
90 #define ENA_RX_RING_IDX_NEXT(idx, ring_size) (((idx) + 1) & ((ring_size) - 1)) argument
91 #define ENA_RX_RING_IDX_ADD(idx, n, ring_size) \ argument
92 (((idx) + (n)) & ((ring_size) - 1))
265 int ring_size; member
/linux-6.12.1/drivers/net/ethernet/renesas/
Drswitch.c212 if (index + num >= gq->ring_size) in rswitch_next_queue_index()
213 index = (index + num) % gq->ring_size; in rswitch_next_queue_index()
225 return gq->ring_size - gq->dirty + gq->cur; in rswitch_get_num_cur_queues()
245 index = (i + start_index) % gq->ring_size; in rswitch_gwca_queue_alloc_rx_buf()
257 index = (i + start_index) % gq->ring_size; in rswitch_gwca_queue_alloc_rx_buf()
273 (gq->ring_size + 1), gq->rx_ring, gq->ring_dma); in rswitch_gwca_queue_free()
276 for (i = 0; i < gq->ring_size; i++) in rswitch_gwca_queue_free()
283 (gq->ring_size + 1), gq->tx_ring, gq->ring_dma); in rswitch_gwca_queue_free()
297 sizeof(struct rswitch_ts_desc) * (gq->ring_size + 1), in rswitch_gwca_ts_queue_free()
305 bool dir_tx, unsigned int ring_size) in rswitch_gwca_queue_alloc() argument
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/linux-6.12.1/drivers/crypto/intel/qat/qat_common/
Dadf_transport.c93 ADF_MAX_INFLIGHTS(ring->ring_size, ring->msg_size)) { in adf_send_message()
103 ADF_RING_SIZE_MODULO(ring->ring_size)); in adf_send_message()
124 ADF_RING_SIZE_MODULO(ring->ring_size)); in adf_handle_response()
139 u32 ring_config = BUILD_RING_CONFIG(ring->ring_size); in adf_configure_tx_ring()
151 BUILD_RESP_RING_CONFIG(ring->ring_size, in adf_configure_rx_ring()
168 ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size); in adf_init_ring()
194 ring->ring_size); in adf_init_ring()
206 ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size); in adf_cleanup_ring()
272 ring->ring_size = adf_verify_ring_size(msg_size, num_msgs); in adf_create_ring()
275 max_inflights = ADF_MAX_INFLIGHTS(ring->ring_size, ring->msg_size); in adf_create_ring()
/linux-6.12.1/drivers/bus/mhi/ep/
Dring.c26 ring->rd_offset = (ring->rd_offset + 1) % ring->ring_size; in mhi_ep_ring_inc_index()
55 buf_info.size = (ring->ring_size - start) * sizeof(struct mhi_ring_element); in __mhi_ep_cache_ring()
125 num_free_elem = ((ring->ring_size - ring->rd_offset) + ring->wr_offset) - 1; in mhi_ep_ring_add_element()
183 ring->ring_size = mhi_ep_ring_num_elems(ring); in mhi_ep_ring_start()
204 ring->ring_cache = kcalloc(ring->ring_size, sizeof(struct mhi_ring_element), GFP_KERNEL); in mhi_ep_ring_start()
/linux-6.12.1/drivers/net/ethernet/atheros/
Dag71xx.c774 int ring_mask, ring_size; in ag71xx_tx_packets() local
778 ring_size = BIT(ring->order); in ag71xx_tx_packets()
831 if ((ring->curr - ring->dirty) < (ring_size * 3) / 4) in ag71xx_tx_packets()
1153 int ring_size = BIT(ring->order); in ag71xx_ring_tx_init() local
1154 int ring_mask = ring_size - 1; in ag71xx_ring_tx_init()
1157 for (i = 0; i < ring_size; i++) { in ag71xx_ring_tx_init()
1178 int ring_size = BIT(ring->order); in ag71xx_ring_rx_clean() local
1184 for (i = 0; i < ring_size; i++) in ag71xx_ring_rx_clean()
1225 int ring_size = BIT(ring->order); in ag71xx_ring_rx_init() local
1230 for (i = 0; i < ring_size; i++) { in ag71xx_ring_rx_init()
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/linux-6.12.1/arch/powerpc/platforms/pasemi/
Ddma_lib.c242 int pasemi_dma_alloc_ring(struct pasemi_dmachan *chan, int ring_size) in pasemi_dma_alloc_ring() argument
246 chan->ring_size = ring_size; in pasemi_dma_alloc_ring()
249 ring_size * sizeof(u64), in pasemi_dma_alloc_ring()
268 dma_free_coherent(&dma_pdev->dev, chan->ring_size * sizeof(u64), in pasemi_dma_free_ring()
271 chan->ring_size = 0; in pasemi_dma_free_ring()
/linux-6.12.1/include/linux/
Dpipe_fs_i.h64 unsigned int ring_size; member
183 return &pipe->bufs[slot & (pipe->ring_size - 1)]; in pipe_buf()
251 unsigned int mask = pipe->ring_size - 1; in pipe_discard_from()
/linux-6.12.1/tools/testing/selftests/bpf/progs/
Dtest_ringbuf.c32 long ring_size = 0; variable
72 ring_size = bpf_ringbuf_query(&ringbuf, BPF_RB_RING_SIZE); in test_ringbuf()
/linux-6.12.1/drivers/net/ethernet/intel/ice/
Dice_fwlog.c83 int status, ring_size; in ice_fwlog_realloc_rings() local
94 ring_size = ICE_FWLOG_INDEX_TO_BYTES(index) / ICE_AQ_MAX_BUF_LEN; in ice_fwlog_realloc_rings()
95 if (ring_size == hw->fwlog_ring.size) in ice_fwlog_realloc_rings()
102 ring.rings = kcalloc(ring_size, sizeof(*ring.rings), GFP_KERNEL); in ice_fwlog_realloc_rings()
106 ring.size = ring_size; in ice_fwlog_realloc_rings()
/linux-6.12.1/drivers/uio/
Duio_hv_generic.c254 size_t ring_size = hv_dev_ring_size(channel); in hv_uio_probe() local
256 if (!ring_size) in hv_uio_probe()
257 ring_size = SZ_2M; in hv_uio_probe()
263 ret = vmbus_alloc_ring(channel, ring_size, ring_size); in hv_uio_probe()

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