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Searched refs:ring_size (Results 1 – 25 of 187) sorted by relevance

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/Linux-v5.15/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-v5.15/include/xen/interface/io/
Dring.h365 static inline RING_IDX name##_mask(RING_IDX idx, RING_IDX ring_size) \
367 return idx & (ring_size - 1); \
372 RING_IDX ring_size) \
374 return buf + name##_mask(idx, ring_size); \
382 RING_IDX ring_size) \
385 size <= ring_size - *masked_cons) { \
388 memcpy(opaque, buf + *masked_cons, ring_size - *masked_cons); \
389 memcpy((unsigned char *)opaque + ring_size - *masked_cons, buf, \
390 size - (ring_size - *masked_cons)); \
392 *masked_cons = name##_mask(*masked_cons + size, ring_size); \
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/Linux-v5.15/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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Dpsp_v11_0_8.c43 ring->ring_size = 0x1000; in psp_v11_0_8_ring_init()
44 ret = amdgpu_bo_create_kernel(adev, ring->ring_size, PAGE_SIZE, in psp_v11_0_8_ring_init()
50 ring->ring_size = 0; in psp_v11_0_8_ring_init()
135 psp_ring_reg = ring->ring_size; in psp_v11_0_8_ring_create()
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()
202 if (ih[i]->ring_size) { in navi10_ih_toggle_interrupts()
214 int rb_bufsz = order_base_2(ih->ring_size / 4); in navi10_ih_rb_cntl()
358 if (ih[i]->ring_size) { in navi10_ih_irq_init()
387 if (adev->irq.ih_soft.ring_size) in navi10_ih_irq_init()
473 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()
299 if (adev->irq.ih_soft.ring_size) in vega10_ih_irq_init()
392 if ((v < ih->ring_size) && (v != ih->rptr)) in vega10_ih_irq_rearm()
Dpsp_v10_0.c141 ring->ring_size = 0x1000; in psp_v10_0_ring_init()
142 ret = amdgpu_bo_create_kernel(adev, ring->ring_size, PAGE_SIZE, in psp_v10_0_ring_init()
148 ring->ring_size = 0; in psp_v10_0_ring_init()
170 psp_ring_reg = ring->ring_size; in psp_v10_0_ring_create()
Dvega20_ih.c54 if (adev->irq.ih.ring_size) { in vega20_ih_init_register_offset()
67 if (adev->irq.ih1.ring_size) { in vega20_ih_init_register_offset()
78 if (adev->irq.ih2.ring_size) { in vega20_ih_init_register_offset()
152 if (ih[i]->ring_size) { in vega20_ih_toggle_interrupts()
164 int rb_bufsz = order_base_2(ih->ring_size / 4); in vega20_ih_rb_cntl()
334 if (ih[i]->ring_size) { in vega20_ih_irq_init()
350 if (adev->irq.ih_soft.ring_size) in vega20_ih_irq_init()
444 if ((v < ih->ring_size) && (v != ih->rptr)) in vega20_ih_irq_rearm()
Damdgpu_ring.c244 ring->ring_size = roundup_pow_of_two(max_dw * 4 * sched_hw_submission); in amdgpu_ring_init()
246 ring->buf_mask = (ring->ring_size / 4) - 1; in amdgpu_ring_init()
251 r = amdgpu_bo_create_kernel(adev, ring->ring_size + ring->funcs->extra_dw, PAGE_SIZE, in amdgpu_ring_init()
394 if (*pos >= (ring->ring_size + 12)) in amdgpu_debugfs_ring_read()
434 i_size_write(ent->d_inode, ring->ring_size + 12); in amdgpu_debugfs_ring_init()
Damdgpu_ih.h49 unsigned ring_size; member
88 unsigned ring_size, bool use_bus_addr);
Dpsp_v13_0.c229 ring->ring_size = 0x1000; in psp_v13_0_ring_init()
230 ret = amdgpu_bo_create_kernel(adev, ring->ring_size, PAGE_SIZE, in psp_v13_0_ring_init()
236 ring->ring_size = 0; in psp_v13_0_ring_init()
321 psp_ring_reg = ring->ring_size; in psp_v13_0_ring_create()
Dpsp_v3_1.c174 ring->ring_size = 0x1000; in psp_v3_1_ring_init()
175 ret = amdgpu_bo_create_kernel(adev, ring->ring_size, PAGE_SIZE, in psp_v3_1_ring_init()
181 ring->ring_size = 0; in psp_v3_1_ring_init()
265 psp_ring_reg = ring->ring_size; in psp_v3_1_ring_create()
/Linux-v5.15/drivers/crypto/ccp/
Dtee-dev.c24 static int tee_alloc_ring(struct psp_tee_device *tee, int ring_size) in tee_alloc_ring() argument
29 if (!ring_size) in tee_alloc_ring()
35 start_addr = (void *)__get_free_pages(GFP_KERNEL, get_order(ring_size)); in tee_alloc_ring()
39 memset(start_addr, 0x0, ring_size); in tee_alloc_ring()
41 rb_mgr->ring_size = ring_size; in tee_alloc_ring()
56 get_order(rb_mgr->ring_size)); in tee_free_ring()
59 rb_mgr->ring_size = 0; in tee_free_ring()
95 cmd->size = tee->rb_mgr.ring_size; in tee_alloc_cmd_buffer()
110 int ring_size = MAX_RING_BUFFER_ENTRIES * sizeof(struct tee_ring_cmd); in tee_init_ring() local
118 ret = tee_alloc_ring(tee, ring_size); in tee_init_ring()
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/Linux-v5.15/drivers/gpu/drm/radeon/
Dradeon_ring.c86 ring->ring_free_dw = rptr + (ring->ring_size / 4); in radeon_ring_free_size()
91 ring->ring_free_dw = ring->ring_size / 4; in radeon_ring_free_size()
112 if (ndw > (ring->ring_size / 4)) in radeon_ring_alloc()
314 size = ring->wptr + (ring->ring_size / 4); in radeon_ring_backup()
381 int radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ring_size, in radeon_ring_init() argument
386 ring->ring_size = ring_size; in radeon_ring_init()
392 r = radeon_bo_create(rdev, ring->ring_size, PAGE_SIZE, true, in radeon_ring_init()
417 ring->ptr_mask = (ring->ring_size / 4) - 1; in radeon_ring_init()
418 ring->ring_free_dw = ring->ring_size / 4; in radeon_ring_init()
474 count = (ring->ring_size / 4) - ring->ring_free_dw; in radeon_debugfs_ring_info_show()
/Linux-v5.15/drivers/xen/
Devtchn.c67 unsigned int ring_size; member
98 return idx & (u->ring_size - 1); in evtchn_ring_offset()
178 if ((prod - cons) < u->ring_size) { in evtchn_interrupt()
235 if (((c ^ p) & u->ring_size) != 0) { in evtchn_read()
236 bytes1 = (u->ring_size - evtchn_ring_offset(u, c)) * in evtchn_read()
322 if (u->nr_evtchns <= u->ring_size) in evtchn_resize_ring()
325 if (u->ring_size == 0) in evtchn_resize_ring()
328 new_size = 2 * u->ring_size; in evtchn_resize_ring()
354 memcpy(new_ring, old_ring, u->ring_size * sizeof(*u->ring)); in evtchn_resize_ring()
355 memcpy(new_ring + u->ring_size, old_ring, in evtchn_resize_ring()
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/Linux-v5.15/drivers/net/ethernet/amazon/ena/
Dena_netdev.h84 #define ENA_TX_RING_IDX_NEXT(idx, ring_size) (((idx) + 1) & ((ring_size) - 1)) argument
86 #define ENA_RX_RING_IDX_NEXT(idx, ring_size) (((idx) + 1) & ((ring_size) - 1)) argument
87 #define ENA_RX_RING_IDX_ADD(idx, n, ring_size) \ argument
88 (((idx) + (n)) & ((ring_size) - 1))
279 int ring_size; member
/Linux-v5.15/drivers/crypto/qat/qat_common/
Dadf_transport.c85 ADF_MAX_INFLIGHTS(ring->ring_size, ring->msg_size)) { in adf_send_message()
95 ADF_RING_SIZE_MODULO(ring->ring_size)); in adf_send_message()
116 ADF_RING_SIZE_MODULO(ring->ring_size)); in adf_handle_response()
131 u32 ring_config = BUILD_RING_CONFIG(ring->ring_size); in adf_configure_tx_ring()
143 BUILD_RESP_RING_CONFIG(ring->ring_size, in adf_configure_rx_ring()
160 ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size); in adf_init_ring()
186 ring->ring_size); in adf_init_ring()
198 ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size); in adf_cleanup_ring()
263 ring->ring_size = adf_verify_ring_size(msg_size, num_msgs); in adf_create_ring()
Dadf_transport_debug.c21 if (*pos >= (ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size) / in adf_ring_start()
33 if (*pos >= (ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size) / in adf_ring_next()
66 (long long)ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size), in adf_ring_show()
/Linux-v5.15/arch/powerpc/platforms/pasemi/
Ddma_lib.c240 int pasemi_dma_alloc_ring(struct pasemi_dmachan *chan, int ring_size) in pasemi_dma_alloc_ring() argument
244 chan->ring_size = ring_size; in pasemi_dma_alloc_ring()
247 ring_size * sizeof(u64), in pasemi_dma_alloc_ring()
266 dma_free_coherent(&dma_pdev->dev, chan->ring_size * sizeof(u64), in pasemi_dma_free_ring()
269 chan->ring_size = 0; in pasemi_dma_free_ring()
/Linux-v5.15/drivers/net/ethernet/atheros/
Dag71xx.c794 int ring_mask, ring_size; in ag71xx_tx_packets() local
798 ring_size = BIT(ring->order); in ag71xx_tx_packets()
851 if ((ring->curr - ring->dirty) < (ring_size * 3) / 4) in ag71xx_tx_packets()
1227 int ring_size = BIT(ring->order); in ag71xx_ring_tx_init() local
1228 int ring_mask = ring_size - 1; in ag71xx_ring_tx_init()
1231 for (i = 0; i < ring_size; i++) { in ag71xx_ring_tx_init()
1252 int ring_size = BIT(ring->order); in ag71xx_ring_rx_clean() local
1258 for (i = 0; i < ring_size; i++) in ag71xx_ring_rx_clean()
1299 int ring_size = BIT(ring->order); in ag71xx_ring_rx_init() local
1304 for (i = 0; i < ring_size; i++) { in ag71xx_ring_rx_init()
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/Linux-v5.15/tools/testing/selftests/bpf/progs/
Dtest_ringbuf.c31 long ring_size = 0; variable
72 ring_size = bpf_ringbuf_query(&ringbuf, BPF_RB_RING_SIZE); in test_ringbuf()
/Linux-v5.15/drivers/gpu/drm/r128/
Dr128_ioc32.c45 int ring_size; member
77 init.ring_size = init32.ring_size; in compat_r128_init()
/Linux-v5.15/drivers/net/ethernet/pensando/ionic/
Dionic_dev.c515 .q_init.ring_size = ilog2(q->num_descs), in ionic_dev_cmd_adminq_init()
532 unsigned int ring_size; in ionic_cq_init() local
537 ring_size = ilog2(num_descs); in ionic_cq_init()
538 if (ring_size < 2 || ring_size > 16) in ionic_cq_init()
601 unsigned int ring_size; in ionic_q_init() local
606 ring_size = ilog2(num_descs); in ionic_q_init()
607 if (ring_size < 2 || ring_size > 16) in ionic_q_init()

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