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/kernel/linux/linux-5.10/tools/virtio/ringtest/
H A 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 in add_inbuf()
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H A 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 in use_buf()
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H A 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()
/kernel/linux/linux-6.6/tools/virtio/ringtest/
H A 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 in add_inbuf()
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H A 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 in use_buf()
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H A 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()
/kernel/linux/linux-5.10/drivers/gpu/drm/amd/amdgpu/
H A Damdgpu_ih.c34 * @ring_size: ring size to allocate
42 unsigned ring_size, bool use_bus_addr) in amdgpu_ih_ring_init()
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 / in amdgpu_ih_ring_init()
41 amdgpu_ih_ring_init(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih, unsigned ring_size, bool use_bus_addr) amdgpu_ih_ring_init() argument
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/kernel/linux/linux-5.10/include/xen/interface/io/
H A 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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/kernel/linux/linux-6.6/include/xen/interface/io/
H A 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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/kernel/linux/linux-6.6/drivers/gpu/drm/amd/amdgpu/
H A Damdgpu_ih.c34 * @ring_size: ring size to allocate
42 unsigned ring_size, bool use_bus_addr) in amdgpu_ih_ring_init()
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 / in amdgpu_ih_ring_init()
41 amdgpu_ih_ring_init(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih, unsigned ring_size, bool use_bus_addr) amdgpu_ih_ring_init() argument
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H A 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 in navi10_ih_sw_init()
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H A 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()
/kernel/linux/linux-5.10/drivers/crypto/ccp/
H A 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 in tee_init_ring() local
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/kernel/linux/linux-6.6/drivers/crypto/ccp/
H A 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()
96 cmd->size = tee->rb_mgr.ring_size; in tee_alloc_cmd_buffer()
111 int ring_size in tee_init_ring() local
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/kernel/linux/linux-6.6/drivers/gpu/drm/radeon/
H A Dradeon_ring.c85 /* This works because ring_size is a power of 2 */ in radeon_ring_free_size()
86 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()
374 * @ring_size: size of the ring
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_SIZ in radeon_ring_init()
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/kernel/linux/linux-5.10/drivers/gpu/drm/radeon/
H A Dradeon_ring.c86 /* This works because ring_size is a power of 2 */ in radeon_ring_free_size()
87 ring->ring_free_dw = rptr + (ring->ring_size / 4); in radeon_ring_free_size()
92 ring->ring_free_dw = ring->ring_size / 4; in radeon_ring_free_size()
113 if (ndw > (ring->ring_size / 4)) in radeon_ring_alloc()
313 size = ring->wptr + (ring->ring_size / 4); in radeon_ring_backup()
373 * @ring_size: size of the ring
380 int radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ring_size, in radeon_ring_init() argument
385 ring->ring_size = ring_size; in radeon_ring_init()
390 r = radeon_bo_create(rdev, ring->ring_size, PAGE_SIZ in radeon_ring_init()
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/kernel/linux/linux-5.10/drivers/net/ethernet/amazon/ena/
H A Dena_netdev.h75 * cycle is ring_size / ENA_TX_POLL_BUDGET_DIVIDER.
90 #define ENA_TX_RING_IDX_NEXT(idx, ring_size) (((idx) + 1) & ((ring_size) - 1))
92 #define ENA_RX_RING_IDX_NEXT(idx, ring_size) (((idx) + 1) & ((ring_size) - 1))
93 #define ENA_RX_RING_IDX_ADD(idx, n, ring_size) \
94 (((idx) + (n)) & ((ring_size) - 1))
285 int ring_size; member
/kernel/linux/linux-6.6/drivers/net/ethernet/amazon/ena/
H A Dena_netdev.h73 * cycle is ring_size / ENA_TX_POLL_BUDGET_DIVIDER.
88 #define ENA_TX_RING_IDX_NEXT(idx, ring_size) (((idx) + 1) & ((ring_size) - 1))
90 #define ENA_RX_RING_IDX_NEXT(idx, ring_size) (((idx) + 1) & ((ring_size) - 1))
91 #define ENA_RX_RING_IDX_ADD(idx, n, ring_size) \
92 (((idx) + (n)) & ((ring_size) - 1))
275 int ring_size; member
/kernel/linux/linux-6.6/drivers/net/ethernet/renesas/
H A Drswitch.c206 if (index + num >= gq->ring_size) in rswitch_next_queue_index()
207 index = (index + num) % gq->ring_size; in rswitch_next_queue_index()
219 return gq->ring_size - gq->dirty + gq->cur; in rswitch_get_num_cur_queues()
238 index = (i + start_index) % gq->ring_size; in rswitch_gwca_queue_alloc_skb()
251 index = (i + start_index) % gq->ring_size; in rswitch_gwca_queue_alloc_skb()
267 (gq->ring_size + 1), gq->rx_ring, gq->ring_dma); in rswitch_gwca_queue_free()
270 for (i = 0; i < gq->ring_size; i++) in rswitch_gwca_queue_free()
275 (gq->ring_size + 1), gq->tx_ring, gq->ring_dma); in rswitch_gwca_queue_free()
288 sizeof(struct rswitch_ts_desc) * (gq->ring_size + 1), in rswitch_gwca_ts_queue_free()
296 bool dir_tx, int ring_size) in rswitch_gwca_queue_alloc()
293 rswitch_gwca_queue_alloc(struct net_device *ndev, struct rswitch_private *priv, struct rswitch_gwca_queue *gq, bool dir_tx, int ring_size) rswitch_gwca_queue_alloc() argument
353 int ring_size = sizeof(struct rswitch_ext_desc) * gq->ring_size; rswitch_gwca_queue_format() local
462 int ring_size = sizeof(struct rswitch_ext_ts_desc) * gq->ring_size; rswitch_gwca_queue_ext_ts_format() local
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/kernel/linux/linux-5.10/drivers/xen/
H A Devtchn.c67 unsigned int ring_size; member
98 return idx & (u->ring_size - 1); in evtchn_ring_offset()
174 if ((u->ring_prod - u->ring_cons) < u->ring_size) { in evtchn_interrupt()
230 if (((c ^ p) & u->ring_size) != 0) { in evtchn_read()
231 bytes1 = (u->ring_size - evtchn_ring_offset(u, c)) * in evtchn_read()
317 if (u->nr_evtchns <= u->ring_size) in evtchn_resize_ring()
320 if (u->ring_size == 0) in evtchn_resize_ring()
323 new_size = 2 * u->ring_size; in evtchn_resize_ring()
349 memcpy(new_ring, old_ring, u->ring_size * sizeof(*u->ring)); in evtchn_resize_ring()
350 memcpy(new_ring + u->ring_size, old_rin in evtchn_resize_ring()
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/kernel/linux/linux-6.6/drivers/xen/
H A 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_rin in evtchn_resize_ring()
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/kernel/linux/linux-5.10/drivers/crypto/qat/qat_common/
H A Dadf_transport.c76 ADF_MAX_INFLIGHTS(ring->ring_size, ring->msg_size)) { in adf_send_message()
86 ADF_RING_SIZE_MODULO(ring->ring_size)); in adf_send_message()
104 ADF_RING_SIZE_MODULO(ring->ring_size)); in adf_handle_response()
117 u32 ring_config = BUILD_RING_CONFIG(ring->ring_size); in adf_configure_tx_ring()
126 BUILD_RESP_RING_CONFIG(ring->ring_size, in adf_configure_rx_ring()
141 ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size); in adf_init_ring()
166 ring_base = BUILD_RING_BASE_ADDR(ring->dma_addr, ring->ring_size); in adf_init_ring()
176 ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size); in adf_cleanup_ring()
239 ring->ring_size = adf_verify_ring_size(msg_size, num_msgs); in adf_create_ring()
/kernel/linux/linux-6.6/drivers/bus/mhi/ep/
H A 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()
174 ring->ring_size = mhi_ep_ring_num_elems(ring); in mhi_ep_ring_start()
190 ring->ring_cache = kcalloc(ring->ring_size, sizeof(struct mhi_ring_element), GFP_KERNEL); in mhi_ep_ring_start()
/kernel/linux/linux-6.6/drivers/crypto/intel/qat/qat_common/
H A 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, rin in adf_create_ring()
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/kernel/linux/linux-6.6/include/linux/
H A Dpipe_fs_i.h43 * @ring_size: total number of buffers (should be a power of 2)
64 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()

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