| /Linux-v5.10/lib/ |
| D | scatterlist.c | 47 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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| D | sg_pool.c | 40 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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| D | sg_split.c | 13 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()
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| D | kfifo.c | 296 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-v5.10/drivers/gpu/drm/virtio/ |
| D | virtgpu_gem.c | 154 struct virtio_gpu_object_array *virtio_gpu_array_alloc(u32 nents) in virtio_gpu_array_alloc() argument
158 objs = kmalloc(struct_size(objs, objs, nents), GFP_KERNEL); in virtio_gpu_array_alloc()
162 objs->nents = 0; in virtio_gpu_array_alloc()
163 objs->total = nents; in virtio_gpu_array_alloc()
173 virtio_gpu_array_from_handles(struct drm_file *drm_file, u32 *handles, u32 nents) in virtio_gpu_array_from_handles() argument
178 objs = virtio_gpu_array_alloc(nents); in virtio_gpu_array_from_handles()
182 for (i = 0; i < nents; i++) { in virtio_gpu_array_from_handles()
185 objs->nents = i; in virtio_gpu_array_from_handles()
190 objs->nents = i; in virtio_gpu_array_from_handles()
197 if (WARN_ON_ONCE(objs->nents == objs->total)) in virtio_gpu_array_add_obj()
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| D | virtgpu_object.c | 142 unsigned int *nents) in virtio_gpu_object_shmem_init() argument
170 *nents = shmem->mapped = shmem->pages->nents; in virtio_gpu_object_shmem_init()
172 *nents = shmem->pages->orig_nents; in virtio_gpu_object_shmem_init()
175 *ents = kmalloc_array(*nents, sizeof(struct virtio_gpu_mem_entry), in virtio_gpu_object_shmem_init()
208 unsigned int nents; in virtio_gpu_object_create() local
245 ret = virtio_gpu_object_shmem_init(vgdev, bo, &ents, &nents); in virtio_gpu_object_create()
251 virtio_gpu_object_attach(vgdev, bo, ents, nents); in virtio_gpu_object_create()
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| /Linux-v5.10/samples/kfifo/ |
| D | dma-example.c | 25 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()
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| /Linux-v5.10/include/linux/ |
| D | scatterlist.h | 44 unsigned int nents; /* number of mapped entries */ member
166 for_each_sg((sgt)->sgl, sg, (sgt)->nents, i)
268 unsigned int nents) in sg_init_marker() argument
270 sg_mark_end(&sgl[nents - 1]); in sg_init_marker()
309 void sgl_free_n_order(struct scatterlist *sgl, int nents, int order);
314 size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf,
317 size_t sg_copy_from_buffer(struct scatterlist *sgl, unsigned int nents,
319 size_t sg_copy_to_buffer(struct scatterlist *sgl, unsigned int nents,
322 size_t sg_pcopy_from_buffer(struct scatterlist *sgl, unsigned int nents,
324 size_t sg_pcopy_to_buffer(struct scatterlist *sgl, unsigned int nents,
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| D | pci-p2pdma.h | 30 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()
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| /Linux-v5.10/arch/arm/mm/ |
| D | dma-mapping-nommu.c | 119 int nents, enum dma_data_direction dir, in arm_nommu_dma_map_sg() argument
125 for_each_sg(sgl, sg, nents, i) { in arm_nommu_dma_map_sg()
131 return nents; in arm_nommu_dma_map_sg()
135 int nents, enum dma_data_direction dir, in arm_nommu_dma_unmap_sg() argument
141 for_each_sg(sgl, sg, nents, i) in arm_nommu_dma_unmap_sg()
158 int nents, enum dma_data_direction dir) in arm_nommu_dma_sync_sg_for_device() argument
163 for_each_sg(sgl, sg, nents, i) in arm_nommu_dma_sync_sg_for_device()
168 int nents, enum dma_data_direction dir) in arm_nommu_dma_sync_sg_for_cpu() argument
173 for_each_sg(sgl, sg, nents, i) in arm_nommu_dma_sync_sg_for_cpu()
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| /Linux-v5.10/drivers/hwtracing/intel_th/ |
| D | msu-sink.c | 54 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()
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| /Linux-v5.10/drivers/crypto/ccree/ |
| D | cc_buffer_mgr.c | 25 int nents[MAX_NUM_OF_BUFFERS_IN_MLLI]; member
77 unsigned int nents = 0; in cc_get_sgl_nents() local
82 nents++; in cc_get_sgl_nents()
90 dev_dbg(dev, "nents %d last bytes %d\n", nents, *lbytes); in cc_get_sgl_nents()
91 return nents; in cc_get_sgl_nents()
109 u32 nents; in cc_copy_sg_portion() local
111 nents = sg_nents_for_len(sg, end); in cc_copy_sg_portion()
112 sg_copy_buffer(sg, nents, dest, (end - to_skip + 1), to_skip, in cc_copy_sg_portion()
236 unsigned int nents, struct scatterlist *sgl, in cc_add_sg_entry() argument
243 index, nents, sgl, data_len, is_last_table); in cc_add_sg_entry()
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| /Linux-v5.10/kernel/dma/ |
| D | direct.h | 20 int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
27 int nents, enum dma_data_direction dir);
30 struct scatterlist *sgl, int nents, enum dma_data_direction dir) in dma_direct_sync_sg_for_device() argument
39 int nents, enum dma_data_direction dir, unsigned long attrs);
41 struct scatterlist *sgl, int nents, enum dma_data_direction dir);
44 struct scatterlist *sgl, int nents, enum dma_data_direction dir, in dma_direct_unmap_sg() argument
49 struct scatterlist *sgl, int nents, enum dma_data_direction dir) in dma_direct_sync_sg_for_cpu() 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-v5.10/drivers/spi/ |
| D | spi-dw-dma.c | 237 u32 nents; in dw_spi_dma_wait_tx_done() local
239 nents = dw_readl(dws, DW_SPI_TXFLR); in dw_spi_dma_wait_tx_done()
241 delay.value = nents * dws->n_bytes * BITS_PER_BYTE; in dw_spi_dma_wait_tx_done()
285 unsigned int nents) in dw_spi_dma_submit_tx() argument
291 txdesc = dmaengine_prep_slave_sg(dws->txchan, sgl, nents, in dw_spi_dma_submit_tx()
322 u32 nents; in dw_spi_dma_wait_rx_done() local
333 nents = dw_readl(dws, DW_SPI_RXFLR); in dw_spi_dma_wait_rx_done()
334 ns = 4U * NSEC_PER_SEC / dws->max_freq * nents; in dw_spi_dma_wait_rx_done()
386 unsigned int nents) in dw_spi_dma_submit_rx() argument
392 rxdesc = dmaengine_prep_slave_sg(dws->rxchan, sgl, nents, in dw_spi_dma_submit_rx()
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| /Linux-v5.10/drivers/parisc/ |
| 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-v5.10/drivers/mmc/core/ |
| D | sdio_ops.c | 122 unsigned int nents, left_size, i; in mmc_io_rw_extended() local
152 nents = DIV_ROUND_UP(left_size, seg_size); in mmc_io_rw_extended()
153 if (nents > 1) { in mmc_io_rw_extended()
154 if (sg_alloc_table(&sgtable, nents, GFP_KERNEL)) in mmc_io_rw_extended()
158 data.sg_len = nents; in mmc_io_rw_extended()
196 if (nents > 1) in mmc_io_rw_extended()
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| /Linux-v5.10/drivers/crypto/cavium/nitrox/ |
| D | nitrox_req.h | 551 static inline void *alloc_req_buf(int nents, int extralen, gfp_t gfp) in alloc_req_buf() argument
555 size = sizeof(struct scatterlist) * nents; in alloc_req_buf()
617 int nents, int ivsize) in alloc_src_req_buf() argument
621 nkreq->src = alloc_req_buf(nents, ivsize, creq->gfp); in alloc_src_req_buf()
639 int nents, int ivsize, in nitrox_creq_set_src_sg() argument
648 sg_init_table(sg, nents); in nitrox_creq_set_src_sg()
663 int nents) in alloc_dst_req_buf() argument
668 nkreq->dst = alloc_req_buf(nents, extralen, creq->gfp); in alloc_dst_req_buf()
697 int nents, int ivsize, in nitrox_creq_set_dst_sg() argument
706 sg_init_table(sg, nents); in nitrox_creq_set_dst_sg()
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| D | nitrox_reqmgr.c | 161 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()
[all …]
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| /Linux-v5.10/drivers/gpu/drm/i915/ |
| D | i915_scatterlist.c | 15 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()
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| /Linux-v5.10/drivers/target/iscsi/cxgbit/ |
| D | cxgbit_ddp.c | 153 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()
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| /Linux-v5.10/drivers/crypto/mediatek/ |
| D | mtk-aes.c | 193 int nents; in mtk_aes_check_aligned() local
198 for (nents = 0; sg; sg = sg_next(sg), ++nents) { in mtk_aes_check_aligned()
206 dma->nents = nents + 1; in mtk_aes_check_aligned()
231 int nents = dma->nents; in mtk_aes_restore_sg() local
236 while (--nents > 0 && sg) in mtk_aes_restore_sg()
266 int nents; in mtk_aes_xmit() local
269 for (nents = 0; nents < slen; ++nents, ssg = sg_next(ssg)) { in mtk_aes_xmit()
274 if (nents == 0) { in mtk_aes_xmit()
289 for (nents = 0; nents < dlen; ++nents, dsg = sg_next(dsg)) { in mtk_aes_xmit()
294 if (nents == 0) in mtk_aes_xmit()
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| /Linux-v5.10/arch/ia64/hp/common/ |
| D | sba_iommu.c | 387 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()
1200 int nents) in sba_fill_pdir() argument
1207 while (nents-- > 0) { in sba_fill_pdir()
1214 nents, startsg->dma_address, cnt, in sba_fill_pdir()
1218 nents, startsg->dma_address, cnt, in sba_fill_pdir()
[all …]
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| /Linux-v5.10/arch/mips/jazz/ |
| D | jazzdma.c | 544 int nents, enum dma_data_direction dir, unsigned long attrs) in jazz_dma_map_sg() argument
549 for_each_sg(sglist, sg, nents, i) { in jazz_dma_map_sg()
559 return nents; in jazz_dma_map_sg()
563 int nents, enum dma_data_direction dir, unsigned long attrs) in jazz_dma_unmap_sg() argument
568 for_each_sg(sglist, sg, nents, i) { in jazz_dma_unmap_sg()
588 struct scatterlist *sgl, int nents, enum dma_data_direction dir) in jazz_dma_sync_sg_for_device() argument
593 for_each_sg(sgl, sg, nents, i) in jazz_dma_sync_sg_for_device()
598 struct scatterlist *sgl, int nents, enum dma_data_direction dir) in jazz_dma_sync_sg_for_cpu() argument
603 for_each_sg(sgl, sg, nents, i) in jazz_dma_sync_sg_for_cpu()
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| /Linux-v5.10/arch/sparc/mm/ |
| D | iommu.c | 249 int nents, enum dma_data_direction dir, unsigned long attrs, in __sbus_iommu_map_sg() argument
255 for_each_sg(sgl, sg, nents, j) { in __sbus_iommu_map_sg()
263 return nents; in __sbus_iommu_map_sg()
267 int nents, enum dma_data_direction dir, unsigned long attrs) in sbus_iommu_map_sg_gflush() argument
270 return __sbus_iommu_map_sg(dev, sgl, nents, dir, attrs, false); in sbus_iommu_map_sg_gflush()
274 int nents, enum dma_data_direction dir, unsigned long attrs) in sbus_iommu_map_sg_pflush() argument
276 return __sbus_iommu_map_sg(dev, sgl, nents, dir, attrs, true); in sbus_iommu_map_sg_pflush()
299 int nents, enum dma_data_direction dir, unsigned long attrs) in sbus_iommu_unmap_sg() argument
304 for_each_sg(sgl, sg, nents, i) { in sbus_iommu_unmap_sg()
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