| /Linux-v4.19/lib/ |
| D | scatterlist.c | 49 int nents; in sg_nents() local
50 for (nents = 0; sg; sg = sg_next(sg)) in sg_nents()
51 nents++; in sg_nents()
52 return nents; in sg_nents()
72 int nents; in sg_nents_for_len() local
78 for (nents = 0, total = 0; sg; sg = sg_next(sg)) { in sg_nents_for_len()
79 nents++; in sg_nents_for_len()
82 return nents; in sg_nents_for_len()
103 struct scatterlist *sg_last(struct scatterlist *sgl, unsigned int nents) in sg_last() argument
108 for_each_sg(sgl, sg, nents, i) in sg_last()
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| D | sg_pool.c | 39 static inline unsigned int sg_pool_index(unsigned short nents) in sg_pool_index() argument
43 BUG_ON(nents > SG_CHUNK_SIZE); in sg_pool_index()
45 if (nents <= 8) in sg_pool_index()
48 index = get_count_order(nents) - 3; in sg_pool_index()
53 static void sg_pool_free(struct scatterlist *sgl, unsigned int nents) in sg_pool_free() argument
57 sgp = sg_pools + sg_pool_index(nents); in sg_pool_free()
61 static struct scatterlist *sg_pool_alloc(unsigned int nents, gfp_t gfp_mask) in sg_pool_alloc() argument
65 sgp = sg_pools + sg_pool_index(nents); in sg_pool_alloc()
98 int sg_alloc_table_chained(struct sg_table *table, int nents, in sg_alloc_table_chained() argument
103 BUG_ON(!nents); in sg_alloc_table_chained()
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| D | sg_split.c | 15 int nents; member
22 static int sg_calculate_split(struct scatterlist *in, int nents, int nb_splits, in sg_calculate_split() argument
34 splitters[i].nents = 0; in sg_calculate_split()
37 for_each_sg(in, sg, nents, i) { in sg_calculate_split()
50 curr->nents++; in sg_calculate_split()
61 curr->nents = 1; in sg_calculate_split()
88 for (j = 0; j < split->nents; j++, out_sg++) { in sg_split_phys()
114 for (j = 0; j < split->nents; j++, out_sg++) { in sg_split_mapped()
170 splitters[i].out_sg = kmalloc_array(splitters[i].nents, in sg_split()
190 out_mapped_nents[i] = splitters[i].nents; in sg_split()
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| D | kfifo.c | 309 int nents, unsigned int len) in setup_sgl_buf() argument
316 if (!nents) in setup_sgl_buf()
336 if (++n == nents || sgl == NULL) in setup_sgl_buf()
348 int nents, unsigned int len, unsigned int off) in setup_sgl() argument
363 n = setup_sgl_buf(sgl, fifo->data + off, nents, l); in setup_sgl()
364 n += setup_sgl_buf(sgl + n, fifo->data, nents - n, len - l); in setup_sgl()
370 struct scatterlist *sgl, int nents, unsigned int len) in __kfifo_dma_in_prepare() argument
378 return setup_sgl(fifo, sgl, nents, len, fifo->in); in __kfifo_dma_in_prepare()
383 struct scatterlist *sgl, int nents, unsigned int len) in __kfifo_dma_out_prepare() argument
391 return setup_sgl(fifo, sgl, nents, len, fifo->out); in __kfifo_dma_out_prepare()
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| /Linux-v4.19/kernel/dma/ |
| D | noncoherent.c | 21 struct scatterlist *sgl, int nents, enum dma_data_direction dir) in dma_noncoherent_sync_sg_for_device() argument
26 for_each_sg(sgl, sg, nents, i) in dma_noncoherent_sync_sg_for_device()
44 int nents, enum dma_data_direction dir, unsigned long attrs) in dma_noncoherent_map_sg() argument
46 nents = dma_direct_map_sg(dev, sgl, nents, dir, attrs); in dma_noncoherent_map_sg()
47 if (nents > 0 && !(attrs & DMA_ATTR_SKIP_CPU_SYNC)) in dma_noncoherent_map_sg()
48 dma_noncoherent_sync_sg_for_device(dev, sgl, nents, dir); in dma_noncoherent_map_sg()
49 return nents; in dma_noncoherent_map_sg()
62 struct scatterlist *sgl, int nents, enum dma_data_direction dir) in dma_noncoherent_sync_sg_for_cpu() argument
67 for_each_sg(sgl, sg, nents, i) in dma_noncoherent_sync_sg_for_cpu()
80 int nents, enum dma_data_direction dir, unsigned long attrs) in dma_noncoherent_unmap_sg() argument
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| D | virt.c | 38 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()
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| /Linux-v4.19/samples/kfifo/ |
| D | dma-example.c | 27 unsigned int nents; in example_init() local
65 nents = kfifo_dma_in_prepare(&fifo, sg, ARRAY_SIZE(sg), FIFO_SIZE); in example_init()
66 printk(KERN_INFO "DMA sgl entries: %d\n", nents); in example_init()
67 if (!nents) { in example_init()
75 for (i = 0; i < nents; i++) { in example_init()
95 nents = kfifo_dma_out_prepare(&fifo, sg, ARRAY_SIZE(sg), 8); in example_init()
96 printk(KERN_INFO "DMA sgl entries: %d\n", nents); in example_init()
97 if (!nents) { in example_init()
104 for (i = 0; i < nents; i++) { in example_init()
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| /Linux-v4.19/include/linux/ |
| D | scatterlist.h | 44 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()
288 void sgl_free_n_order(struct scatterlist *sgl, int nents, int order);
293 size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf,
296 size_t sg_copy_from_buffer(struct scatterlist *sgl, unsigned int nents,
298 size_t sg_copy_to_buffer(struct scatterlist *sgl, unsigned int nents,
301 size_t sg_pcopy_from_buffer(struct scatterlist *sgl, unsigned int nents,
303 size_t sg_pcopy_to_buffer(struct scatterlist *sgl, unsigned int nents,
305 size_t sg_zero_buffer(struct scatterlist *sgl, unsigned int nents,
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| D | pci-dma-compat.h | 66 int nents, int direction) in pci_map_sg() argument
68 return dma_map_sg(&hwdev->dev, sg, nents, (enum dma_data_direction)direction); in pci_map_sg()
73 int nents, int direction) in pci_unmap_sg() argument
75 dma_unmap_sg(&hwdev->dev, sg, nents, (enum dma_data_direction)direction); in pci_unmap_sg()
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| /Linux-v4.19/drivers/crypto/ccree/ |
| D | cc_buffer_mgr.c | 35 int nents[MAX_NUM_OF_BUFFERS_IN_MLLI]; member
89 unsigned int nents = 0; in cc_get_sgl_nents() local
93 nents++; in cc_get_sgl_nents()
105 dev_dbg(dev, "nents %d last bytes %d\n", nents, *lbytes); in cc_get_sgl_nents()
106 return nents; in cc_get_sgl_nents()
143 u32 nents, lbytes; in cc_copy_sg_portion() local
145 nents = cc_get_sgl_nents(dev, sg, end, &lbytes, NULL); in cc_copy_sg_portion()
146 sg_copy_buffer(sg, nents, (void *)dest, (end - to_skip + 1), to_skip, in cc_copy_sg_portion()
281 sgl_data->nents[index] = 1; in cc_add_buffer_entry()
294 unsigned int nents, struct scatterlist *sgl, in cc_add_sg_entry() argument
[all …]
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| /Linux-v4.19/net/rds/ |
| D | ib_fmr.c | 89 unsigned int nents) in rds_ib_map_fmr() argument
101 sg_dma_len = ib_dma_map_sg(dev, sg, nents, DMA_BIDIRECTIONAL); in rds_ib_map_fmr()
116 ib_dma_unmap_sg(dev, sg, nents, in rds_ib_map_fmr()
125 ib_dma_unmap_sg(dev, sg, nents, in rds_ib_map_fmr()
138 ib_dma_unmap_sg(dev, sg, nents, DMA_BIDIRECTIONAL); in rds_ib_map_fmr()
145 ib_dma_unmap_sg(dev, sg, nents, DMA_BIDIRECTIONAL); in rds_ib_map_fmr()
161 ib_dma_unmap_sg(dev, sg, nents, DMA_BIDIRECTIONAL); in rds_ib_map_fmr()
171 ibmr->sg_len = nents; in rds_ib_map_fmr()
189 unsigned long nents, in rds_ib_reg_fmr() argument
196 ibmr = rds_ib_alloc_fmr(rds_ibdev, nents); in rds_ib_reg_fmr()
[all …]
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| /Linux-v4.19/drivers/parisc/ |
| D | ccio-rm-dma.c | 115 static int ccio_map_sg(struct pci_dev *dev, struct scatterlist *sglist, int nents, int direction) in ccio_map_sg() argument
117 int tmp = nents; in ccio_map_sg()
120 while (nents) { in ccio_map_sg()
123 nents--; in ccio_map_sg()
131 static void ccio_unmap_sg(struct pci_dev *dev, struct scatterlist *sglist, int nents, int direction) in ccio_unmap_sg() argument
134 while (nents) { in ccio_unmap_sg()
136 nents--; in ccio_unmap_sg()
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| D | iommu-helpers.h | 15 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()
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| /Linux-v4.19/arch/arm/mm/ |
| D | dma-mapping-nommu.c | 138 int nents, enum dma_data_direction dir, in arm_nommu_dma_map_sg() argument
144 for_each_sg(sgl, sg, nents, i) { in arm_nommu_dma_map_sg()
150 return nents; in arm_nommu_dma_map_sg()
154 int nents, enum dma_data_direction dir, in arm_nommu_dma_unmap_sg() argument
160 for_each_sg(sgl, sg, nents, i) in arm_nommu_dma_unmap_sg()
177 int nents, enum dma_data_direction dir) in arm_nommu_dma_sync_sg_for_device() argument
182 for_each_sg(sgl, sg, nents, i) in arm_nommu_dma_sync_sg_for_device()
187 int nents, enum dma_data_direction dir) in arm_nommu_dma_sync_sg_for_cpu() argument
192 for_each_sg(sgl, sg, nents, i) in arm_nommu_dma_sync_sg_for_cpu()
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| /Linux-v4.19/drivers/crypto/cavium/nitrox/ |
| D | nitrox_reqmgr.c | 197 int i, nents, ret = 0; in dma_map_inbufs() local
201 nents = sg_nents(req->src); in dma_map_inbufs()
204 sz = roundup((1 + nents), 4) * sizeof(*glist); in dma_map_inbufs()
219 nents = dma_map_sg(dev, req->src, nents, sr->in.dir); in dma_map_inbufs()
220 if (!nents) { in dma_map_inbufs()
232 for_each_sg(req->src, sg, nents, i) { in dma_map_inbufs()
239 sr->in.map_bufs_cnt = (1 + nents); in dma_map_inbufs()
249 dma_unmap_sg(dev, req->src, nents, sr->in.dir); in dma_map_inbufs()
266 int i, nents, map_bufs_cnt, ret = 0; in dma_map_outbufs() local
269 nents = sg_nents(req->dst); in dma_map_outbufs()
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| /Linux-v4.19/drivers/mmc/core/ |
| D | sdio_ops.c | 126 unsigned int nents, left_size, i; in mmc_io_rw_extended() local
155 nents = DIV_ROUND_UP(left_size, seg_size); in mmc_io_rw_extended()
156 if (nents > 1) { in mmc_io_rw_extended()
157 if (sg_alloc_table(&sgtable, nents, GFP_KERNEL)) in mmc_io_rw_extended()
161 data.sg_len = nents; in mmc_io_rw_extended()
179 if (nents > 1) in mmc_io_rw_extended()
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| /Linux-v4.19/drivers/target/iscsi/cxgbit/ |
| D | cxgbit_ddp.c | 156 unsigned int nents) in cxgbit_ddp_sgl_check() argument
158 unsigned int last_sgidx = nents - 1; in cxgbit_ddp_sgl_check()
161 for (i = 0; i < nents; i++, sg = sg_next(sg)) { in cxgbit_ddp_sgl_check()
180 unsigned int sgcnt = ttinfo->nents; in cxgbit_ddp_reserve()
187 xferlen, ttinfo->nents); in cxgbit_ddp_reserve()
249 ttinfo->nents = cmd->se_cmd.t_data_nents; in cxgbit_get_r2t_ttt()
254 csk, cmd, cmd->se_cmd.data_length, ttinfo->nents); in cxgbit_get_r2t_ttt()
257 ttinfo->nents = 0; in cxgbit_get_r2t_ttt()
289 ttinfo->nents, DMA_FROM_DEVICE); in cxgbit_release_cmd()
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| /Linux-v4.19/drivers/crypto/mediatek/ |
| D | mtk-aes.c | 192 int nents; in mtk_aes_check_aligned() local
197 for (nents = 0; sg; sg = sg_next(sg), ++nents) { in mtk_aes_check_aligned()
205 dma->nents = nents + 1; in mtk_aes_check_aligned()
230 int nents = dma->nents; in mtk_aes_restore_sg() local
235 while (--nents > 0 && sg) in mtk_aes_restore_sg()
281 int nents; in mtk_aes_xmit() local
284 for (nents = 0; nents < slen; ++nents, ssg = sg_next(ssg)) { in mtk_aes_xmit()
289 if (nents == 0) { in mtk_aes_xmit()
304 for (nents = 0; nents < dlen; ++nents, dsg = sg_next(dsg)) { in mtk_aes_xmit()
309 if (nents == 0) in mtk_aes_xmit()
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| /Linux-v4.19/arch/ia64/hp/common/ |
| D | sba_iommu.c | 395 sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents) in sba_dump_sg() argument
397 while (nents-- > 0) { in sba_dump_sg()
398 printk(KERN_DEBUG " %d : DMA %08lx/%05x CPU %p\n", nents, in sba_dump_sg()
406 sba_check_sg( struct ioc *ioc, struct scatterlist *startsg, int nents) in sba_check_sg() argument
409 int the_nents = nents; in sba_check_sg()
413 sba_dump_sg(NULL, startsg, nents); in sba_check_sg()
1227 int nents) in sba_fill_pdir() argument
1234 while (nents-- > 0) { in sba_fill_pdir()
1241 nents, startsg->dma_address, cnt, in sba_fill_pdir()
1245 nents, startsg->dma_address, cnt, in sba_fill_pdir()
[all …]
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| /Linux-v4.19/arch/x86/kernel/ |
| D | amd_gart_64.c | 289 static void gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, in gart_unmap_sg() argument
295 for_each_sg(sg, s, nents, i) { in gart_unmap_sg()
304 int nents, int dir) in dma_map_sg_nonforce() argument
313 for_each_sg(sg, s, nents, i) { in dma_map_sg_nonforce()
321 nents = 0; in dma_map_sg_nonforce()
331 return nents; in dma_map_sg_nonforce()
390 static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, in gart_map_sg() argument
399 if (nents == 0) in gart_map_sg()
413 for_each_sg(sg, s, nents, i) { in gart_map_sg()
453 if (out < nents) { in gart_map_sg()
[all …]
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| /Linux-v4.19/drivers/spi/ |
| D | spi-ep93xx.c | 272 int i, ret, nents; in ep93xx_spi_dma_prepare() local
312 nents = DIV_ROUND_UP(len, PAGE_SIZE); in ep93xx_spi_dma_prepare()
313 if (nents != sgt->nents) { in ep93xx_spi_dma_prepare()
316 ret = sg_alloc_table(sgt, nents, GFP_KERNEL); in ep93xx_spi_dma_prepare()
322 for_each_sg(sgt->sgl, sg, sgt->nents, i) { in ep93xx_spi_dma_prepare()
342 nents = dma_map_sg(chan->device->dev, sgt->sgl, sgt->nents, dir); in ep93xx_spi_dma_prepare()
343 if (!nents) in ep93xx_spi_dma_prepare()
346 txd = dmaengine_prep_slave_sg(chan, sgt->sgl, nents, dir, DMA_CTRL_ACK); in ep93xx_spi_dma_prepare()
348 dma_unmap_sg(chan->device->dev, sgt->sgl, sgt->nents, dir); in ep93xx_spi_dma_prepare()
377 dma_unmap_sg(chan->device->dev, sgt->sgl, sgt->nents, dir); in ep93xx_spi_dma_finish()
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| /Linux-v4.19/arch/hexagon/kernel/ |
| D | dma.c | 99 int nents, enum dma_data_direction dir, in hexagon_map_sg() argument
105 WARN_ON(nents == 0 || sg[0].length == 0); in hexagon_map_sg()
107 for_each_sg(sg, s, nents, i) { in hexagon_map_sg()
121 return nents; in hexagon_map_sg()
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| /Linux-v4.19/arch/mips/jazz/ |
| D | jazzdma.c | 613 int nents, enum dma_data_direction dir, unsigned long attrs) in jazz_dma_map_sg() argument
618 for_each_sg(sglist, sg, nents, i) { in jazz_dma_map_sg()
628 return nents; in jazz_dma_map_sg()
632 int nents, enum dma_data_direction dir, unsigned long attrs) in jazz_dma_unmap_sg() argument
637 for_each_sg(sglist, sg, nents, i) { in jazz_dma_unmap_sg()
658 struct scatterlist *sgl, int nents, enum dma_data_direction dir) in jazz_dma_sync_sg_for_device() argument
663 for_each_sg(sgl, sg, nents, i) in jazz_dma_sync_sg_for_device()
668 struct scatterlist *sgl, int nents, enum dma_data_direction dir) in jazz_dma_sync_sg_for_cpu() argument
673 for_each_sg(sgl, sg, nents, i) in jazz_dma_sync_sg_for_cpu()
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| /Linux-v4.19/drivers/gpu/drm/i915/selftests/ |
| D | scatterlist.c | 50 for_each_sg(pt->st.sgl, sg, pt->st.nents, n) { in expect_pfn_sg()
52 unsigned int npages = npages_fn(n, pt->st.nents, rnd); in expect_pfn_sg()
88 for_each_sg_page(pt->st.sgl, &sgiter, pt->st.nents, 0) { in expect_pfn_sg_page_iter()
258 pt->st.nents = n; in alloc_table()
345 pt.st.nents != prime) { in igt_sg_trim()
347 pt.st.nents, pt.st.orig_nents, prime); in igt_sg_trim()
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| /Linux-v4.19/arch/powerpc/kernel/ |
| D | dma.c | 194 int nents, enum dma_data_direction direction, in dma_nommu_map_sg() argument
200 for_each_sg(sgl, sg, nents, i) { in dma_nommu_map_sg()
210 return nents; in dma_nommu_map_sg()
214 int nents, enum dma_data_direction direction, in dma_nommu_unmap_sg() argument
254 struct scatterlist *sgl, int nents, in dma_nommu_sync_sg() argument
260 for_each_sg(sgl, sg, nents, i) in dma_nommu_sync_sg()
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