| /Linux-v5.4/tools/virtio/linux/ |
| D | scatterlist.h | 14 #define sg_is_chain(sg) ((sg)->page_link & 0x01) argument
15 #define sg_is_last(sg) ((sg)->page_link & 0x02) argument
16 #define sg_chain_ptr(sg) \ argument
17 ((struct scatterlist *) ((sg)->page_link & ~0x03))
29 static inline void sg_assign_page(struct scatterlist *sg, struct page *page) in sg_assign_page() argument
31 unsigned long page_link = sg->page_link & 0x3; in sg_assign_page()
39 BUG_ON(sg_is_chain(sg)); in sg_assign_page()
41 sg->page_link = page_link | (unsigned long) page; in sg_assign_page()
58 static inline void sg_set_page(struct scatterlist *sg, struct page *page, in sg_set_page() argument
61 sg_assign_page(sg, page); in sg_set_page()
[all …]
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| /Linux-v5.4/drivers/ata/ |
| D | sata_gemini.c | 126 bool gemini_sata_bridge_enabled(struct sata_gemini *sg, bool is_ata1) in gemini_sata_bridge_enabled() argument
128 if (!sg->sata_bridge) in gemini_sata_bridge_enabled()
134 if ((sg->muxmode == GEMINI_MUXMODE_2) && in gemini_sata_bridge_enabled()
137 if ((sg->muxmode == GEMINI_MUXMODE_3) && in gemini_sata_bridge_enabled()
145 enum gemini_muxmode gemini_sata_get_muxmode(struct sata_gemini *sg) in gemini_sata_get_muxmode() argument
147 return sg->muxmode; in gemini_sata_get_muxmode()
151 static int gemini_sata_setup_bridge(struct sata_gemini *sg, in gemini_sata_setup_bridge() argument
161 if (sg->muxmode == GEMINI_MUXMODE_2) in gemini_sata_setup_bridge()
163 writel(val, sg->base + GEMINI_SATA0_CTRL); in gemini_sata_setup_bridge()
167 if (sg->muxmode == GEMINI_MUXMODE_3) in gemini_sata_setup_bridge()
[all …]
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| /Linux-v5.4/include/linux/ |
| D | scatterlist.h | 34 #define sg_dma_address(sg) ((sg)->dma_address) argument
37 #define sg_dma_len(sg) ((sg)->dma_length) argument
39 #define sg_dma_len(sg) ((sg)->length) argument
72 #define sg_is_chain(sg) ((sg)->page_link & SG_CHAIN) argument
73 #define sg_is_last(sg) ((sg)->page_link & SG_END) argument
74 #define sg_chain_ptr(sg) \ argument
75 ((struct scatterlist *) ((sg)->page_link & ~(SG_CHAIN | SG_END)))
87 static inline void sg_assign_page(struct scatterlist *sg, struct page *page) in sg_assign_page() argument
89 unsigned long page_link = sg->page_link & (SG_CHAIN | SG_END); in sg_assign_page()
97 BUG_ON(sg_is_chain(sg)); in sg_assign_page()
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| /Linux-v5.4/drivers/clk/sprd/ |
| D | gate.c | 13 static void clk_gate_toggle(const struct sprd_gate *sg, bool en) in clk_gate_toggle() argument
15 const struct sprd_clk_common *common = &sg->common; in clk_gate_toggle()
17 bool set = sg->flags & CLK_GATE_SET_TO_DISABLE ? true : false; in clk_gate_toggle()
24 reg |= sg->enable_mask; in clk_gate_toggle()
26 reg &= ~sg->enable_mask; in clk_gate_toggle()
31 static void clk_sc_gate_toggle(const struct sprd_gate *sg, bool en) in clk_sc_gate_toggle() argument
33 const struct sprd_clk_common *common = &sg->common; in clk_sc_gate_toggle()
34 bool set = sg->flags & CLK_GATE_SET_TO_DISABLE ? 1 : 0; in clk_sc_gate_toggle()
45 offset = set ? sg->sc_offset : sg->sc_offset * 2; in clk_sc_gate_toggle()
48 sg->enable_mask); in clk_sc_gate_toggle()
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| /Linux-v5.4/drivers/crypto/ |
| D | omap-crypto.c | 17 struct scatterlist **sg, in omap_crypto_copy_sg_lists() argument
20 int n = sg_nents(*sg); in omap_crypto_copy_sg_lists()
24 new_sg = kmalloc_array(n, sizeof(*sg), GFP_KERNEL); in omap_crypto_copy_sg_lists()
33 while (*sg && total) { in omap_crypto_copy_sg_lists()
34 int len = (*sg)->length; in omap_crypto_copy_sg_lists()
41 sg_set_page(tmp, sg_page(*sg), len, (*sg)->offset); in omap_crypto_copy_sg_lists()
47 *sg = sg_next(*sg); in omap_crypto_copy_sg_lists()
50 *sg = new_sg; in omap_crypto_copy_sg_lists()
55 static int omap_crypto_copy_sgs(int total, int bs, struct scatterlist **sg, in omap_crypto_copy_sgs() argument
73 scatterwalk_map_and_copy(buf, *sg, 0, total, 0); in omap_crypto_copy_sgs()
[all …]
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| /Linux-v5.4/Documentation/scsi/ |
| D | scsi-generic.txt | 1 Notes on Linux SCSI Generic (sg) driver
6 The SCSI Generic driver (sg) is one of the four "high level" SCSI device
10 Thus sg is used for scanners, CD writers and reading audio CDs digitally
18 Major versions of the sg driver
20 There are three major versions of sg found in the linux kernel (lk):
21 - sg version 1 (original) from 1992 to early 1999 (lk 2.2.5) .
23 - sg version 2 from lk 2.2.6 in the 2.2 series. It is based on
25 - sg version 3 found in the lk 2.4 series (and the lk 2.5 series).
31 The most recent documentation of the sg driver is kept at the Linux
34 This describes the sg version 3 driver found in the lk 2.4 series.
[all …]
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| /Linux-v5.4/lib/ |
| D | scatterlist.c | 23 struct scatterlist *sg_next(struct scatterlist *sg) in sg_next() argument
25 if (sg_is_last(sg)) in sg_next()
28 sg++; in sg_next()
29 if (unlikely(sg_is_chain(sg))) in sg_next()
30 sg = sg_chain_ptr(sg); in sg_next()
32 return sg; in sg_next()
45 int sg_nents(struct scatterlist *sg) in sg_nents() argument
48 for (nents = 0; sg; sg = sg_next(sg)) in sg_nents()
68 int sg_nents_for_len(struct scatterlist *sg, u64 len) in sg_nents_for_len() argument
76 for (nents = 0, total = 0; sg; sg = sg_next(sg)) { in sg_nents_for_len()
[all …]
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| /Linux-v5.4/drivers/gpu/drm/i915/ |
| D | i915_scatterlist.h | 42 static inline int __sg_page_count(const struct scatterlist *sg) in __sg_page_count() argument
44 return sg->length >> PAGE_SHIFT; in __sg_page_count()
47 static inline struct scatterlist *____sg_next(struct scatterlist *sg) in ____sg_next() argument
49 ++sg; in ____sg_next()
50 if (unlikely(sg_is_chain(sg))) in ____sg_next()
51 sg = sg_chain_ptr(sg); in ____sg_next()
52 return sg; in ____sg_next()
64 static inline struct scatterlist *__sg_next(struct scatterlist *sg) in __sg_next() argument
66 return sg_is_last(sg) ? NULL : ____sg_next(sg); in __sg_next()
95 static inline unsigned int i915_sg_page_sizes(struct scatterlist *sg) in i915_sg_page_sizes() argument
[all …]
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| /Linux-v5.4/arch/s390/mm/ |
| D | gmap.c | 241 struct gmap *sg, *next; in gmap_remove() local
247 list_for_each_entry_safe(sg, next, &gmap->children, list) { in gmap_remove()
248 list_del(&sg->list); in gmap_remove()
249 gmap_put(sg); in gmap_remove()
1173 static inline void gmap_insert_rmap(struct gmap *sg, unsigned long vmaddr, in gmap_insert_rmap() argument
1178 BUG_ON(!gmap_is_shadow(sg)); in gmap_insert_rmap()
1179 slot = radix_tree_lookup_slot(&sg->host_to_rmap, vmaddr >> PAGE_SHIFT); in gmap_insert_rmap()
1182 &sg->guest_table_lock); in gmap_insert_rmap()
1183 radix_tree_replace_slot(&sg->host_to_rmap, slot, rmap); in gmap_insert_rmap()
1186 radix_tree_insert(&sg->host_to_rmap, vmaddr >> PAGE_SHIFT, in gmap_insert_rmap()
[all …]
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| /Linux-v5.4/net/core/ |
| D | skmsg.c | 13 if (msg->sg.end > msg->sg.start && in sk_msg_try_coalesce_ok()
14 elem_first_coalesce < msg->sg.end) in sk_msg_try_coalesce_ok()
17 if (msg->sg.end < msg->sg.start && in sk_msg_try_coalesce_ok()
18 (elem_first_coalesce > msg->sg.start || in sk_msg_try_coalesce_ok()
19 elem_first_coalesce < msg->sg.end)) in sk_msg_try_coalesce_ok()
31 len -= msg->sg.size; in sk_msg_alloc()
45 i = msg->sg.end; in sk_msg_alloc()
47 sge = &msg->sg.data[i]; in sk_msg_alloc()
59 sge = &msg->sg.data[msg->sg.end]; in sk_msg_alloc()
67 msg->sg.size += use; in sk_msg_alloc()
[all …]
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| /Linux-v5.4/include/crypto/ |
| D | scatterwalk.h | 20 struct scatterlist *sg, int num) in scatterwalk_crypto_chain() argument
22 if (sg) in scatterwalk_crypto_chain()
23 sg_chain(head, num, sg); in scatterwalk_crypto_chain()
30 unsigned int len = walk->sg->offset + walk->sg->length - walk->offset; in scatterwalk_pagelen()
56 return sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT); in scatterwalk_page()
65 struct scatterlist *sg) in scatterwalk_start() argument
67 walk->sg = sg; in scatterwalk_start()
68 walk->offset = sg->offset; in scatterwalk_start()
83 page = sg_page(walk->sg) + ((walk->offset - 1) >> PAGE_SHIFT); in scatterwalk_pagedone()
92 if (more && walk->offset >= walk->sg->offset + walk->sg->length) in scatterwalk_pagedone()
[all …]
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| /Linux-v5.4/samples/kfifo/ |
| D | dma-example.c | 26 struct scatterlist sg[10]; in example_init() local
62 sg_init_table(sg, ARRAY_SIZE(sg)); in example_init()
63 nents = kfifo_dma_in_prepare(&fifo, sg, ARRAY_SIZE(sg), FIFO_SIZE); in example_init()
77 i, sg_page(&sg[i]), sg[i].offset, sg[i].length); in example_init()
79 if (sg_is_last(&sg[i])) in example_init()
93 nents = kfifo_dma_out_prepare(&fifo, sg, ARRAY_SIZE(sg), 8); in example_init()
106 i, sg_page(&sg[i]), sg[i].offset, sg[i].length); in example_init()
108 if (sg_is_last(&sg[i])) in example_init()
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| /Linux-v5.4/include/soc/fsl/ |
| D | dpaa2-fd.h | 309 static inline dma_addr_t dpaa2_sg_get_addr(const struct dpaa2_sg_entry *sg) in dpaa2_sg_get_addr() argument
311 return (dma_addr_t)le64_to_cpu(sg->addr); in dpaa2_sg_get_addr()
319 static inline void dpaa2_sg_set_addr(struct dpaa2_sg_entry *sg, dma_addr_t addr) in dpaa2_sg_set_addr() argument
321 sg->addr = cpu_to_le64(addr); in dpaa2_sg_set_addr()
324 static inline bool dpaa2_sg_short_len(const struct dpaa2_sg_entry *sg) in dpaa2_sg_short_len() argument
326 return !!((le16_to_cpu(sg->format_offset) >> SG_SHORT_LEN_FLAG_SHIFT) in dpaa2_sg_short_len()
336 static inline u32 dpaa2_sg_get_len(const struct dpaa2_sg_entry *sg) in dpaa2_sg_get_len() argument
338 if (dpaa2_sg_short_len(sg)) in dpaa2_sg_get_len()
339 return le32_to_cpu(sg->len) & SG_SHORT_LEN_MASK; in dpaa2_sg_get_len()
341 return le32_to_cpu(sg->len); in dpaa2_sg_get_len()
[all …]
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| /Linux-v5.4/drivers/gpu/drm/i915/gem/selftests/ |
| D | huge_gem_object.c | 15 struct scatterlist *sg; in huge_free_pages() local
17 for (sg = pages->sgl; sg && nreal--; sg = __sg_next(sg)) in huge_free_pages()
18 __free_page(sg_page(sg)); in huge_free_pages()
29 struct scatterlist *sg, *src, *end; in huge_get_pages() local
42 sg = pages->sgl; in huge_get_pages()
48 sg_mark_end(sg); in huge_get_pages()
52 sg_set_page(sg, page, PAGE_SIZE, 0); in huge_get_pages()
53 sg = __sg_next(sg); in huge_get_pages()
56 for (end = sg, src = pages->sgl; sg; sg = __sg_next(sg)) { in huge_get_pages()
57 sg_set_page(sg, sg_page(src), PAGE_SIZE, 0); in huge_get_pages()
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| /Linux-v5.4/drivers/media/pci/tw68/ |
| D | tw68-risc.c | 38 struct scatterlist *sg; in tw68_risc_field() local
54 sg = sglist; in tw68_risc_field()
57 while (offset && offset >= sg_dma_len(sg)) { in tw68_risc_field()
58 offset -= sg_dma_len(sg); in tw68_risc_field()
59 sg = sg_next(sg); in tw68_risc_field()
61 if (bpl <= sg_dma_len(sg) - offset) { in tw68_risc_field()
65 *(rp++) = cpu_to_le32(sg_dma_address(sg) + offset); in tw68_risc_field()
76 done = (sg_dma_len(sg) - offset); in tw68_risc_field()
80 *(rp++) = cpu_to_le32(sg_dma_address(sg) + offset); in tw68_risc_field()
82 sg = sg_next(sg); in tw68_risc_field()
[all …]
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| /Linux-v5.4/net/mac80211/ |
| D | aead_api.c | 22 struct scatterlist sg[3]; in aead_encrypt() local
34 sg_init_table(sg, 3); in aead_encrypt()
35 sg_set_buf(&sg[0], __aad, aad_len); in aead_encrypt()
36 sg_set_buf(&sg[1], data, data_len); in aead_encrypt()
37 sg_set_buf(&sg[2], mic, mic_len); in aead_encrypt()
40 aead_request_set_crypt(aead_req, sg, sg, data_len, b_0); in aead_encrypt()
41 aead_request_set_ad(aead_req, sg[0].length); in aead_encrypt()
53 struct scatterlist sg[3]; in aead_decrypt() local
69 sg_init_table(sg, 3); in aead_decrypt()
70 sg_set_buf(&sg[0], __aad, aad_len); in aead_decrypt()
[all …]
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| /Linux-v5.4/drivers/dma/ |
| D | dma-axi-dmac.c | 105 struct axi_dmac_sg sg[]; member
199 struct axi_dmac_sg *sg; in axi_dmac_start_transfer() local
216 sg = &desc->sg[desc->num_submitted]; in axi_dmac_start_transfer()
219 if (sg->id != AXI_DMAC_SG_UNUSED) { in axi_dmac_start_transfer()
220 sg->schedule_when_free = true; in axi_dmac_start_transfer()
236 sg->id = axi_dmac_read(dmac, AXI_DMAC_REG_TRANSFER_ID); in axi_dmac_start_transfer()
239 axi_dmac_write(dmac, AXI_DMAC_REG_DEST_ADDRESS, sg->dest_addr); in axi_dmac_start_transfer()
240 axi_dmac_write(dmac, AXI_DMAC_REG_DEST_STRIDE, sg->dest_stride); in axi_dmac_start_transfer()
244 axi_dmac_write(dmac, AXI_DMAC_REG_SRC_ADDRESS, sg->src_addr); in axi_dmac_start_transfer()
245 axi_dmac_write(dmac, AXI_DMAC_REG_SRC_STRIDE, sg->src_stride); in axi_dmac_start_transfer()
[all …]
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| /Linux-v5.4/arch/arm/mm/ |
| D | dma-mapping-nommu.c | 122 struct scatterlist *sg; in arm_nommu_dma_map_sg() local
124 for_each_sg(sgl, sg, nents, i) { in arm_nommu_dma_map_sg()
125 sg_dma_address(sg) = sg_phys(sg); in arm_nommu_dma_map_sg()
126 sg_dma_len(sg) = sg->length; in arm_nommu_dma_map_sg()
127 __dma_page_cpu_to_dev(sg_dma_address(sg), sg_dma_len(sg), dir); in arm_nommu_dma_map_sg()
137 struct scatterlist *sg; in arm_nommu_dma_unmap_sg() local
140 for_each_sg(sgl, sg, nents, i) in arm_nommu_dma_unmap_sg()
141 __dma_page_dev_to_cpu(sg_dma_address(sg), sg_dma_len(sg), dir); in arm_nommu_dma_unmap_sg()
159 struct scatterlist *sg; in arm_nommu_dma_sync_sg_for_device() local
162 for_each_sg(sgl, sg, nents, i) in arm_nommu_dma_sync_sg_for_device()
[all …]
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| /Linux-v5.4/drivers/infiniband/core/ |
| D | umem.c | 73 static struct scatterlist *ib_umem_add_sg_table(struct scatterlist *sg, in ib_umem_add_sg_table() argument
82 bool first = !sg_page(sg); in ib_umem_add_sg_table()
87 if (!first && (page_to_pfn(sg_page(sg)) + (sg->length >> PAGE_SHIFT) == in ib_umem_add_sg_table()
108 if ((max_seg_sz - sg->length) >= (len << PAGE_SHIFT)) { in ib_umem_add_sg_table()
109 sg_set_page(sg, sg_page(sg), in ib_umem_add_sg_table()
110 sg->length + (len << PAGE_SHIFT), in ib_umem_add_sg_table()
120 sg = sg_next(sg); in ib_umem_add_sg_table()
123 sg_set_page(sg, first_page, len << PAGE_SHIFT, 0); in ib_umem_add_sg_table()
127 return sg; in ib_umem_add_sg_table()
148 struct scatterlist *sg; in ib_umem_find_best_pgsz() local
[all …]
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| /Linux-v5.4/drivers/gpu/drm/i915/gem/ |
| D | i915_gem_internal.c | 24 struct scatterlist *sg; in internal_free_pages() local
26 for (sg = st->sgl; sg; sg = __sg_next(sg)) { in internal_free_pages()
27 if (sg_page(sg)) in internal_free_pages()
28 __free_pages(sg_page(sg), get_order(sg->length)); in internal_free_pages()
39 struct scatterlist *sg; in i915_gem_object_get_pages_internal() local
77 sg = st->sgl; in i915_gem_object_get_pages_internal()
97 sg_set_page(sg, page, PAGE_SIZE << order, 0); in i915_gem_object_get_pages_internal()
103 sg_mark_end(sg); in i915_gem_object_get_pages_internal()
107 sg = __sg_next(sg); in i915_gem_object_get_pages_internal()
132 sg_set_page(sg, NULL, 0, 0); in i915_gem_object_get_pages_internal()
[all …]
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| D | i915_gem_pages.c | 52 obj->mm.page_sizes.sg = 0; in __i915_gem_object_set_pages()
55 obj->mm.page_sizes.sg |= BIT(i); in __i915_gem_object_set_pages()
57 GEM_BUG_ON(!HAS_PAGE_SIZES(i915, obj->mm.page_sizes.sg)); in __i915_gem_object_set_pages()
177 obj->mm.page_sizes.phys = obj->mm.page_sizes.sg = 0; in __i915_gem_object_unset_pages()
379 struct scatterlist *sg; in i915_gem_object_get_sg() local
405 sg = iter->sg_pos; in i915_gem_object_get_sg()
407 count = __sg_page_count(sg); in i915_gem_object_get_sg()
422 ret = radix_tree_insert(&iter->radix, idx, sg); in i915_gem_object_get_sg()
434 sg = ____sg_next(sg); in i915_gem_object_get_sg()
435 count = __sg_page_count(sg); in i915_gem_object_get_sg()
[all …]
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| /Linux-v5.4/drivers/target/iscsi/cxgbit/ |
| D | cxgbit_ddp.c | 13 struct scatterlist *sg = sg_pp ? *sg_pp : NULL; in cxgbit_set_one_ppod() local
21 if (sg) { in cxgbit_set_one_ppod()
22 addr = sg_dma_address(sg); in cxgbit_set_one_ppod()
23 len = sg_dma_len(sg); in cxgbit_set_one_ppod()
27 if (sg) { in cxgbit_set_one_ppod()
30 if (offset == (len + sg->offset)) { in cxgbit_set_one_ppod()
32 sg = sg_next(sg); in cxgbit_set_one_ppod()
33 if (sg) { in cxgbit_set_one_ppod()
34 addr = sg_dma_address(sg); in cxgbit_set_one_ppod()
35 len = sg_dma_len(sg); in cxgbit_set_one_ppod()
[all …]
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| /Linux-v5.4/drivers/crypto/qce/ |
| D | dma.c | 52 struct scatterlist *sg = sgt->sgl, *sg_last = NULL; in qce_sgtable_add() local
54 while (sg) { in qce_sgtable_add()
55 if (!sg_page(sg)) in qce_sgtable_add()
57 sg = sg_next(sg); in qce_sgtable_add()
60 if (!sg) in qce_sgtable_add()
63 while (new_sgl && sg) { in qce_sgtable_add()
64 sg_set_page(sg, sg_page(new_sgl), new_sgl->length, in qce_sgtable_add()
66 sg_last = sg; in qce_sgtable_add()
67 sg = sg_next(sg); in qce_sgtable_add()
74 static int qce_dma_prep_sg(struct dma_chan *chan, struct scatterlist *sg, in qce_dma_prep_sg() argument
[all …]
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| /Linux-v5.4/arch/powerpc/platforms/powernv/ |
| D | opal-sensor-groups.c | 27 struct attribute_group sg; member
129 static int add_attr_group(const __be32 *ops, int len, struct sensor_group *sg, in add_attr_group() argument
138 add_attr(handle, &sg->sgattrs[count], j); in add_attr_group()
139 sg->sg.attrs[count] = in add_attr_group()
140 &sg->sgattrs[count].attr.attr; in add_attr_group()
144 return sysfs_create_group(sg_kobj, &sg->sg); in add_attr_group()
162 struct device_node *sg, *node; in opal_sensor_groups_init() local
165 sg = of_find_compatible_node(NULL, NULL, "ibm,opal-sensor-group"); in opal_sensor_groups_init()
166 if (!sg) { in opal_sensor_groups_init()
171 sgs = kcalloc(of_get_child_count(sg), sizeof(*sgs), GFP_KERNEL); in opal_sensor_groups_init()
[all …]
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| /Linux-v5.4/crypto/ |
| D | af_alg.c | 405 sg_init_table(sgl->sg, npages + 1); in af_alg_make_sg()
410 sg_set_page(sgl->sg + i, sgl->pages[i], plen, off); in af_alg_make_sg()
415 sg_mark_end(sgl->sg + npages - 1); in af_alg_make_sg()
425 sg_unmark_end(sgl_prev->sg + sgl_prev->npages - 1); in af_alg_link_sg()
426 sg_chain(sgl_prev->sg, sgl_prev->npages + 1, sgl_new->sg); in af_alg_link_sg()
489 struct scatterlist *sg = NULL; in af_alg_alloc_tsgl() local
493 sg = sgl->sg; in af_alg_alloc_tsgl()
495 if (!sg || sgl->cur >= MAX_SGL_ENTS) { in af_alg_alloc_tsgl()
497 struct_size(sgl, sg, (MAX_SGL_ENTS + 1)), in af_alg_alloc_tsgl()
502 sg_init_table(sgl->sg, MAX_SGL_ENTS + 1); in af_alg_alloc_tsgl()
[all …]
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