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Searched refs:nents (Results 1 – 25 of 248) sorted by relevance

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/Linux-v5.4/lib/
Dscatterlist.c47 int nents; in sg_nents() local
48 for (nents = 0; sg; sg = sg_next(sg)) in sg_nents()
49 nents++; in sg_nents()
50 return nents; in sg_nents()
70 int nents; in sg_nents_for_len() local
76 for (nents = 0, total = 0; sg; sg = sg_next(sg)) { in sg_nents_for_len()
77 nents++; in sg_nents_for_len()
80 return nents; in sg_nents_for_len()
101 struct scatterlist *sg_last(struct scatterlist *sgl, unsigned int nents) in sg_last() argument
106 for_each_sg(sgl, sg, nents, i) in sg_last()
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Dsg_pool.c40 static inline unsigned int sg_pool_index(unsigned short nents) in sg_pool_index() argument
44 BUG_ON(nents > SG_CHUNK_SIZE); in sg_pool_index()
46 if (nents <= 8) in sg_pool_index()
49 index = get_count_order(nents) - 3; in sg_pool_index()
54 static void sg_pool_free(struct scatterlist *sgl, unsigned int nents) in sg_pool_free() argument
58 sgp = sg_pools + sg_pool_index(nents); in sg_pool_free()
62 static struct scatterlist *sg_pool_alloc(unsigned int nents, gfp_t gfp_mask) in sg_pool_alloc() argument
66 sgp = sg_pools + sg_pool_index(nents); in sg_pool_alloc()
111 int sg_alloc_table_chained(struct sg_table *table, int nents, in sg_alloc_table_chained() argument
116 BUG_ON(!nents); in sg_alloc_table_chained()
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Dsg_split.c13 int nents; member
20 static int sg_calculate_split(struct scatterlist *in, int nents, int nb_splits, in sg_calculate_split() argument
32 splitters[i].nents = 0; in sg_calculate_split()
35 for_each_sg(in, sg, nents, i) { in sg_calculate_split()
48 curr->nents++; in sg_calculate_split()
59 curr->nents = 1; in sg_calculate_split()
86 for (j = 0; j < split->nents; j++, out_sg++) { in sg_split_phys()
112 for (j = 0; j < split->nents; j++, out_sg++) { in sg_split_mapped()
168 splitters[i].out_sg = kmalloc_array(splitters[i].nents, in sg_split()
190 out_mapped_nents[i] = splitters[i].nents; in sg_split()
Dkfifo.c296 int nents, unsigned int len) in setup_sgl_buf() argument
303 if (!nents) in setup_sgl_buf()
323 if (++n == nents || sgl == NULL) in setup_sgl_buf()
335 int nents, unsigned int len, unsigned int off) in setup_sgl() argument
350 n = setup_sgl_buf(sgl, fifo->data + off, nents, l); in setup_sgl()
351 n += setup_sgl_buf(sgl + n, fifo->data, nents - n, len - l); in setup_sgl()
357 struct scatterlist *sgl, int nents, unsigned int len) in __kfifo_dma_in_prepare() argument
365 return setup_sgl(fifo, sgl, nents, len, fifo->in); in __kfifo_dma_in_prepare()
370 struct scatterlist *sgl, int nents, unsigned int len) in __kfifo_dma_out_prepare() argument
378 return setup_sgl(fifo, sgl, nents, len, fifo->out); in __kfifo_dma_out_prepare()
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/Linux-v5.4/samples/kfifo/
Ddma-example.c25 unsigned int nents; in example_init() local
63 nents = kfifo_dma_in_prepare(&fifo, sg, ARRAY_SIZE(sg), FIFO_SIZE); in example_init()
64 printk(KERN_INFO "DMA sgl entries: %d\n", nents); in example_init()
65 if (!nents) { in example_init()
73 for (i = 0; i < nents; i++) { in example_init()
93 nents = kfifo_dma_out_prepare(&fifo, sg, ARRAY_SIZE(sg), 8); in example_init()
94 printk(KERN_INFO "DMA sgl entries: %d\n", nents); in example_init()
95 if (!nents) { in example_init()
102 for (i = 0; i < nents; i++) { in example_init()
/Linux-v5.4/include/linux/
Dpci-p2pdma.h30 unsigned int *nents, u32 length);
34 int nents, enum dma_data_direction dir, unsigned long attrs);
36 int nents, enum dma_data_direction dir, unsigned long attrs);
75 unsigned int *nents, u32 length) in pci_p2pmem_alloc_sgl() argument
87 struct scatterlist *sg, int nents, enum dma_data_direction dir, in pci_p2pdma_map_sg_attrs() argument
93 struct scatterlist *sg, int nents, enum dma_data_direction dir, in pci_p2pdma_unmap_sg_attrs() argument
123 int nents, enum dma_data_direction dir) in pci_p2pdma_map_sg() argument
125 return pci_p2pdma_map_sg_attrs(dev, sg, nents, dir, 0); in pci_p2pdma_map_sg()
129 struct scatterlist *sg, int nents, enum dma_data_direction dir) in pci_p2pdma_unmap_sg() argument
131 pci_p2pdma_unmap_sg_attrs(dev, sg, nents, dir, 0); in pci_p2pdma_unmap_sg()
Dscatterlist.h44 unsigned int nents; /* number of mapped entries */ member
249 unsigned int nents) in sg_init_marker() argument
251 sg_mark_end(&sgl[nents - 1]); in sg_init_marker()
289 void sgl_free_n_order(struct scatterlist *sgl, int nents, int order);
294 size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf,
297 size_t sg_copy_from_buffer(struct scatterlist *sgl, unsigned int nents,
299 size_t sg_copy_to_buffer(struct scatterlist *sgl, unsigned int nents,
302 size_t sg_pcopy_from_buffer(struct scatterlist *sgl, unsigned int nents,
304 size_t sg_pcopy_to_buffer(struct scatterlist *sgl, unsigned int nents,
306 size_t sg_zero_buffer(struct scatterlist *sgl, unsigned int nents,
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Ddma-mapping.h105 int nents, enum dma_data_direction dir,
108 struct scatterlist *sg, int nents,
124 struct scatterlist *sg, int nents,
127 struct scatterlist *sg, int nents,
206 int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
216 struct scatterlist *sgl, int nents, enum dma_data_direction dir);
223 struct scatterlist *sgl, int nents, enum dma_data_direction dir) in dma_direct_sync_sg_for_device() argument
234 int nents, enum dma_data_direction dir, unsigned long attrs);
238 struct scatterlist *sgl, int nents, enum dma_data_direction dir);
245 struct scatterlist *sgl, int nents, enum dma_data_direction dir, in dma_direct_unmap_sg() argument
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/Linux-v5.4/net/rds/
Dib_fmr.c100 unsigned int nents) in rds_ib_map_fmr() argument
112 sg_dma_len = ib_dma_map_sg(dev, sg, nents, DMA_BIDIRECTIONAL); in rds_ib_map_fmr()
127 ib_dma_unmap_sg(dev, sg, nents, in rds_ib_map_fmr()
136 ib_dma_unmap_sg(dev, sg, nents, in rds_ib_map_fmr()
149 ib_dma_unmap_sg(dev, sg, nents, DMA_BIDIRECTIONAL); in rds_ib_map_fmr()
156 ib_dma_unmap_sg(dev, sg, nents, DMA_BIDIRECTIONAL); in rds_ib_map_fmr()
172 ib_dma_unmap_sg(dev, sg, nents, DMA_BIDIRECTIONAL); in rds_ib_map_fmr()
182 ibmr->sg_len = nents; in rds_ib_map_fmr()
200 unsigned long nents, in rds_ib_reg_fmr() argument
207 ibmr = rds_ib_alloc_fmr(rds_ibdev, nents); in rds_ib_reg_fmr()
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/Linux-v5.4/arch/arm/mm/
Ddma-mapping-nommu.c118 int nents, enum dma_data_direction dir, in arm_nommu_dma_map_sg() argument
124 for_each_sg(sgl, sg, nents, i) { in arm_nommu_dma_map_sg()
130 return nents; in arm_nommu_dma_map_sg()
134 int nents, enum dma_data_direction dir, in arm_nommu_dma_unmap_sg() argument
140 for_each_sg(sgl, sg, nents, i) in arm_nommu_dma_unmap_sg()
157 int nents, enum dma_data_direction dir) in arm_nommu_dma_sync_sg_for_device() argument
162 for_each_sg(sgl, sg, nents, i) in arm_nommu_dma_sync_sg_for_device()
167 int nents, enum dma_data_direction dir) in arm_nommu_dma_sync_sg_for_cpu() argument
172 for_each_sg(sgl, sg, nents, i) in arm_nommu_dma_sync_sg_for_cpu()
/Linux-v5.4/drivers/hwtracing/intel_th/
Dmsu-sink.c54 unsigned int nents; in msu_sink_alloc_window() local
62 nents = DIV_ROUND_UP(size, PAGE_SIZE); in msu_sink_alloc_window()
64 ret = sg_alloc_table(*sgt, nents, GFP_KERNEL); in msu_sink_alloc_window()
70 for_each_sg((*sgt)->sgl, sg_ptr, nents, i) { in msu_sink_alloc_window()
77 return nents; in msu_sink_alloc_window()
87 for_each_sg(sgt->sgl, sg_ptr, sgt->nents, i) { in msu_sink_free_window()
/Linux-v5.4/drivers/crypto/ccree/
Dcc_buffer_mgr.c35 int nents[MAX_NUM_OF_BUFFERS_IN_MLLI]; member
88 unsigned int nents = 0; in cc_get_sgl_nents() local
91 nents++; in cc_get_sgl_nents()
98 dev_dbg(dev, "nents %d last bytes %d\n", nents, *lbytes); in cc_get_sgl_nents()
99 return nents; in cc_get_sgl_nents()
115 u32 nents; in cc_copy_sg_portion() local
117 nents = sg_nents_for_len(sg, end); in cc_copy_sg_portion()
118 sg_copy_buffer(sg, nents, (void *)dest, (end - to_skip + 1), to_skip, in cc_copy_sg_portion()
256 sgl_data->nents[index] = 1; in cc_add_buffer_entry()
269 unsigned int nents, struct scatterlist *sgl, in cc_add_sg_entry() argument
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/Linux-v5.4/drivers/parisc/
Diommu-helpers.h15 iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents, in iommu_fill_pdir() argument
30 while (nents-- > 0) { in iommu_fill_pdir()
34 DBG_RUN_SG(" %d : %08lx/%05x %p/%05x\n", nents, in iommu_fill_pdir()
102 struct scatterlist *startsg, int nents, in iommu_coalesce_chunks() argument
114 while (nents > 0) { in iommu_coalesce_chunks()
131 while(--nents > 0) { in iommu_coalesce_chunks()
/Linux-v5.4/drivers/mmc/core/
Dsdio_ops.c122 unsigned int nents, left_size, i; in mmc_io_rw_extended() local
151 nents = DIV_ROUND_UP(left_size, seg_size); in mmc_io_rw_extended()
152 if (nents > 1) { in mmc_io_rw_extended()
153 if (sg_alloc_table(&sgtable, nents, GFP_KERNEL)) in mmc_io_rw_extended()
157 data.sg_len = nents; in mmc_io_rw_extended()
175 if (nents > 1) in mmc_io_rw_extended()
/Linux-v5.4/drivers/crypto/cavium/nitrox/
Dnitrox_req.h547 static inline void *alloc_req_buf(int nents, int extralen, gfp_t gfp) in alloc_req_buf() argument
551 size = sizeof(struct scatterlist) * nents; in alloc_req_buf()
613 int nents, int ivsize) in alloc_src_req_buf() argument
617 nkreq->src = alloc_req_buf(nents, ivsize, creq->gfp); in alloc_src_req_buf()
635 int nents, int ivsize, in nitrox_creq_set_src_sg() argument
644 sg_init_table(sg, nents); in nitrox_creq_set_src_sg()
659 int nents) in alloc_dst_req_buf() argument
664 nkreq->dst = alloc_req_buf(nents, extralen, creq->gfp); in alloc_dst_req_buf()
693 int nents, int ivsize, in nitrox_creq_set_dst_sg() argument
702 sg_init_table(sg, nents); in nitrox_creq_set_dst_sg()
Dnitrox_reqmgr.c161 int i, nents, ret = 0; in dma_map_inbufs() local
163 nents = dma_map_sg(dev, req->src, sg_nents(req->src), in dma_map_inbufs()
165 if (!nents) in dma_map_inbufs()
168 for_each_sg(req->src, sg, nents, i) in dma_map_inbufs()
172 sr->in.sgmap_cnt = nents; in dma_map_inbufs()
180 dma_unmap_sg(dev, req->src, nents, DMA_BIDIRECTIONAL); in dma_map_inbufs()
189 int nents, ret = 0; in dma_map_outbufs() local
191 nents = dma_map_sg(dev, req->dst, sg_nents(req->dst), in dma_map_outbufs()
193 if (!nents) in dma_map_outbufs()
197 sr->out.sgmap_cnt = nents; in dma_map_outbufs()
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/Linux-v5.4/drivers/gpu/drm/i915/
Di915_scatterlist.c15 if (orig_st->nents == orig_st->orig_nents) in i915_sg_trim()
18 if (sg_alloc_table(&new_st, orig_st->nents, GFP_KERNEL | __GFP_NOWARN)) in i915_sg_trim()
22 for_each_sg(orig_st->sgl, sg, orig_st->nents, i) { in i915_sg_trim()
/Linux-v5.4/drivers/target/iscsi/cxgbit/
Dcxgbit_ddp.c153 unsigned int nents) in cxgbit_ddp_sgl_check() argument
155 unsigned int last_sgidx = nents - 1; in cxgbit_ddp_sgl_check()
158 for (i = 0; i < nents; i++, sg = sg_next(sg)) { in cxgbit_ddp_sgl_check()
177 unsigned int sgcnt = ttinfo->nents; in cxgbit_ddp_reserve()
184 xferlen, ttinfo->nents); in cxgbit_ddp_reserve()
246 ttinfo->nents = cmd->se_cmd.t_data_nents; in cxgbit_get_r2t_ttt()
251 csk, cmd, cmd->se_cmd.data_length, ttinfo->nents); in cxgbit_get_r2t_ttt()
254 ttinfo->nents = 0; in cxgbit_get_r2t_ttt()
286 ttinfo->nents, DMA_FROM_DEVICE); in cxgbit_unmap_cmd()
/Linux-v5.4/drivers/crypto/mediatek/
Dmtk-aes.c194 int nents; in mtk_aes_check_aligned() local
199 for (nents = 0; sg; sg = sg_next(sg), ++nents) { in mtk_aes_check_aligned()
207 dma->nents = nents + 1; in mtk_aes_check_aligned()
232 int nents = dma->nents; in mtk_aes_restore_sg() local
237 while (--nents > 0 && sg) in mtk_aes_restore_sg()
283 int nents; in mtk_aes_xmit() local
286 for (nents = 0; nents < slen; ++nents, ssg = sg_next(ssg)) { in mtk_aes_xmit()
291 if (nents == 0) { in mtk_aes_xmit()
306 for (nents = 0; nents < dlen; ++nents, dsg = sg_next(dsg)) { in mtk_aes_xmit()
311 if (nents == 0) in mtk_aes_xmit()
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/Linux-v5.4/arch/ia64/hp/common/
Dsba_iommu.c387 sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents) in sba_dump_sg() argument
389 while (nents-- > 0) { in sba_dump_sg()
390 printk(KERN_DEBUG " %d : DMA %08lx/%05x CPU %p\n", nents, in sba_dump_sg()
398 sba_check_sg( struct ioc *ioc, struct scatterlist *startsg, int nents) in sba_check_sg() argument
401 int the_nents = nents; in sba_check_sg()
405 sba_dump_sg(NULL, startsg, nents); in sba_check_sg()
1201 int nents) in sba_fill_pdir() argument
1208 while (nents-- > 0) { in sba_fill_pdir()
1215 nents, startsg->dma_address, cnt, in sba_fill_pdir()
1219 nents, startsg->dma_address, cnt, in sba_fill_pdir()
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/Linux-v5.4/kernel/dma/
Dvirt.c38 int nents, enum dma_data_direction dir, in dma_virt_map_sg() argument
44 for_each_sg(sgl, sg, nents, i) { in dma_virt_map_sg()
50 return nents; in dma_virt_map_sg()
Ddirect.c239 struct scatterlist *sgl, int nents, enum dma_data_direction dir) in dma_direct_sync_sg_for_device() argument
244 for_each_sg(sgl, sg, nents, i) { in dma_direct_sync_sg_for_device()
278 struct scatterlist *sgl, int nents, enum dma_data_direction dir) in dma_direct_sync_sg_for_cpu() argument
283 for_each_sg(sgl, sg, nents, i) { in dma_direct_sync_sg_for_cpu()
313 int nents, enum dma_data_direction dir, unsigned long attrs) in dma_direct_unmap_sg() argument
318 for_each_sg(sgl, sg, nents, i) in dma_direct_unmap_sg()
351 int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int nents, in dma_direct_map_sg() argument
357 for_each_sg(sgl, sg, nents, i) { in dma_direct_map_sg()
365 return nents; in dma_direct_map_sg()
/Linux-v5.4/arch/sparc/mm/
Diommu.c244 int nents, enum dma_data_direction dir, unsigned long attrs, in __sbus_iommu_map_sg() argument
250 for_each_sg(sgl, sg, nents, j) { in __sbus_iommu_map_sg()
258 return nents; in __sbus_iommu_map_sg()
262 int nents, enum dma_data_direction dir, unsigned long attrs) in sbus_iommu_map_sg_gflush() argument
265 return __sbus_iommu_map_sg(dev, sgl, nents, dir, attrs, false); in sbus_iommu_map_sg_gflush()
269 int nents, enum dma_data_direction dir, unsigned long attrs) in sbus_iommu_map_sg_pflush() argument
271 return __sbus_iommu_map_sg(dev, sgl, nents, dir, attrs, true); in sbus_iommu_map_sg_pflush()
294 int nents, enum dma_data_direction dir, unsigned long attrs) in sbus_iommu_unmap_sg() argument
299 for_each_sg(sgl, sg, nents, i) { in sbus_iommu_unmap_sg()
/Linux-v5.4/drivers/spi/
Dspi-ep93xx.c281 int i, ret, nents; in ep93xx_spi_dma_prepare() local
321 nents = DIV_ROUND_UP(len, PAGE_SIZE); in ep93xx_spi_dma_prepare()
322 if (nents != sgt->nents) { in ep93xx_spi_dma_prepare()
325 ret = sg_alloc_table(sgt, nents, GFP_KERNEL); in ep93xx_spi_dma_prepare()
331 for_each_sg(sgt->sgl, sg, sgt->nents, i) { in ep93xx_spi_dma_prepare()
351 nents = dma_map_sg(chan->device->dev, sgt->sgl, sgt->nents, dir); in ep93xx_spi_dma_prepare()
352 if (!nents) in ep93xx_spi_dma_prepare()
355 txd = dmaengine_prep_slave_sg(chan, sgt->sgl, nents, conf.direction, in ep93xx_spi_dma_prepare()
358 dma_unmap_sg(chan->device->dev, sgt->sgl, sgt->nents, dir); in ep93xx_spi_dma_prepare()
387 dma_unmap_sg(chan->device->dev, sgt->sgl, sgt->nents, dir); in ep93xx_spi_dma_finish()
/Linux-v5.4/arch/x86/kernel/
Damd_gart_64.c279 static void gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, in gart_unmap_sg() argument
285 for_each_sg(sg, s, nents, i) { in gart_unmap_sg()
294 int nents, int dir) in dma_map_sg_nonforce() argument
303 for_each_sg(sg, s, nents, i) { in dma_map_sg_nonforce()
311 nents = 0; in dma_map_sg_nonforce()
321 return nents; in dma_map_sg_nonforce()
380 static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, in gart_map_sg() argument
389 if (nents == 0) in gart_map_sg()
400 for_each_sg(sg, s, nents, i) { in gart_map_sg()
440 if (out < nents) { in gart_map_sg()
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