| /openbmc/linux/tools/virtio/linux/ |
| H A D | scatterlist.h | 15 #define sg_is_chain(sg) ((sg)->page_link & 0x01) argument
16 #define sg_is_last(sg) ((sg)->page_link & 0x02) argument
17 #define sg_chain_ptr(sg) \ argument
18 ((struct scatterlist *) ((sg)->page_link & ~0x03))
21 * sg_assign_page - Assign a given page to an SG entry
22 * @sg: SG entry
26 * Assign page to sg entry. Also see sg_set_page(), the most commonly used
30 static inline void sg_assign_page(struct scatterlist *sg, struct page *page) in sg_assign_page() argument
32 unsigned long page_link = sg->page_link & 0x3; in sg_assign_page()
40 BUG_ON(sg_is_chain(sg)); in sg_assign_page()
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| /openbmc/linux/include/linux/ |
| H A D | scatterlist.h | 26 * to get bus addresses of each of the SG entries and their lengths.
27 * You should only work with the number of sg entries dma_map_sg
28 * returns, or alternatively stop on the first sg_dma_len(sg) which
31 #define sg_dma_address(sg) ((sg)->dma_address) argument
34 #define sg_dma_len(sg) ((sg)->dma_length) argument
36 #define sg_dma_len(sg) ((sg)->length) argument
52 * Notes on SG table design.
55 * the page pointer AND encode information about the sg table as well. The two
58 * If bit 0 is set, then the page_link contains a pointer to the next sg
59 * table list. Otherwise the next entry is at sg + 1.
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| /openbmc/linux/drivers/ata/ |
| H A D | sata_gemini.c | 125 bool gemini_sata_bridge_enabled(struct sata_gemini *sg, bool is_ata1) in gemini_sata_bridge_enabled() argument
127 if (!sg->sata_bridge) in gemini_sata_bridge_enabled()
133 if ((sg->muxmode == GEMINI_MUXMODE_2) && in gemini_sata_bridge_enabled()
136 if ((sg->muxmode == GEMINI_MUXMODE_3) && in gemini_sata_bridge_enabled()
144 enum gemini_muxmode gemini_sata_get_muxmode(struct sata_gemini *sg) in gemini_sata_get_muxmode() argument
146 return sg->muxmode; in gemini_sata_get_muxmode()
150 static int gemini_sata_setup_bridge(struct sata_gemini *sg, in gemini_sata_setup_bridge() argument
160 if (sg->muxmode == GEMINI_MUXMODE_2) in gemini_sata_setup_bridge()
162 writel(val, sg->base + GEMINI_SATA0_CTRL); in gemini_sata_setup_bridge()
166 if (sg->muxmode == GEMINI_MUXMODE_3) in gemini_sata_setup_bridge()
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| /openbmc/linux/Documentation/scsi/ |
| H A D | scsi-generic.rst | 4 SCSI Generic (sg) driver
11 The SCSI Generic driver (sg) is one of the four "high level" SCSI device
12 drivers along with sd, st and sr (disk, tape and CD-ROM respectively). Sg
15 Thus sg is used for scanners, CD writers and reading audio CDs digitally
23 Major versions of the sg driver
25 There are three major versions of sg found in the Linux kernel (lk):
26 - sg version 1 (original) from 1992 to early 1999 (lk 2.2.5) .
28 - sg version 2 from lk 2.2.6 in the 2.2 series. It is based on
30 - sg version 3 found in the lk 2.4 series (and the lk 2.5 series).
34 Sg driver documentation
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| /openbmc/linux/drivers/clk/sprd/ |
| H A 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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| /openbmc/linux/lib/ |
| H A D | scatterlist.c | 17 * @sg: The current sg entry
20 * Usually the next entry will be @sg@ + 1, but if this sg element is part
25 struct scatterlist *sg_next(struct scatterlist *sg) in sg_next() argument
27 if (sg_is_last(sg)) in sg_next()
30 sg++; in sg_next()
31 if (unlikely(sg_is_chain(sg))) in sg_next()
32 sg = sg_chain_ptr(sg); in sg_next()
34 return sg; in sg_next()
40 * @sg: The scatterlist
43 * Allows to know how many entries are in sg, taking into account
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| /openbmc/linux/drivers/gpu/drm/i915/ |
| H A D | i915_scatterlist.c | 18 struct scatterlist *sg, *new_sg; in i915_sg_trim() local
28 for_each_sg(orig_st->sgl, sg, orig_st->nents, i) { in i915_sg_trim()
29 sg_set_page(new_sg, sg_page(sg), sg->length, 0); in i915_sg_trim()
30 sg_dma_address(new_sg) = sg_dma_address(sg); in i915_sg_trim()
31 sg_dma_len(new_sg) = sg_dma_len(sg); in i915_sg_trim()
70 * @region_start: An offset to add to the dma addresses of the sg list.
71 * @page_alignment: Required page alignment for each sg entry. Power of two.
89 struct scatterlist *sg; in i915_rsgt_from_mm_node() local
112 sg = st->sgl; in i915_rsgt_from_mm_node()
121 if (offset != prev_end || sg->length >= max_segment) { in i915_rsgt_from_mm_node()
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| H A D | i915_scatterlist.h | 50 static inline int __sg_page_count(const struct scatterlist *sg) in __sg_page_count() argument
52 return sg->length >> PAGE_SHIFT; in __sg_page_count()
55 static inline int __sg_dma_page_count(const struct scatterlist *sg) in __sg_dma_page_count() argument
57 return sg_dma_len(sg) >> PAGE_SHIFT; in __sg_dma_page_count()
60 static inline struct scatterlist *____sg_next(struct scatterlist *sg) in ____sg_next() argument
62 ++sg; in ____sg_next()
63 if (unlikely(sg_is_chain(sg))) in ____sg_next()
64 sg = sg_chain_ptr(sg); in ____sg_next()
65 return sg; in ____sg_next()
70 * @sg: The current sg entry
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| /openbmc/linux/drivers/crypto/ |
| H A 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()
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| /openbmc/qemu/system/ |
| H A D | dma-helpers.c | 32 qsg->sg = g_new(ScatterGatherEntry, alloc_hint); in qemu_sglist_init()
45 qsg->sg = g_renew(ScatterGatherEntry, qsg->sg, qsg->nalloc); in qemu_sglist_add()
47 qsg->sg[qsg->nsg].base = base; in qemu_sglist_add()
48 qsg->sg[qsg->nsg].len = len; in qemu_sglist_add()
56 g_free(qsg->sg); in qemu_sglist_destroy()
64 QEMUSGList *sg; member
93 dma_memory_unmap(dbs->sg->as, dbs->iov.iov[i].iov_base, in dma_blk_unmap()
128 if (dbs->sg_cur_index == dbs->sg->nsg || ret < 0) { in dma_blk_cb()
134 while (dbs->sg_cur_index < dbs->sg->nsg) { in dma_blk_cb()
135 cur_addr = dbs->sg->sg[dbs->sg_cur_index].base + dbs->sg_cur_byte; in dma_blk_cb()
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| /openbmc/linux/include/soc/fsl/ |
| H A D | dpaa2-fd.h | 284 * @addr: address of the sg entry
285 * @len: length in this sg entry
302 /* Accessors for SG entry fields */
305 * dpaa2_sg_get_addr() - Get the address from SG entry
306 * @sg: the given scatter-gathering object
310 static inline dma_addr_t dpaa2_sg_get_addr(const struct dpaa2_sg_entry *sg) in dpaa2_sg_get_addr() argument
312 return (dma_addr_t)le64_to_cpu(sg->addr); in dpaa2_sg_get_addr()
316 * dpaa2_sg_set_addr() - Set the address in SG entry
317 * @sg: the given scatter-gathering object
320 static inline void dpaa2_sg_set_addr(struct dpaa2_sg_entry *sg, dma_addr_t addr) in dpaa2_sg_set_addr() argument
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| /openbmc/linux/arch/s390/mm/ |
| H A D | gmap.c | 252 struct gmap *sg, *next; in gmap_remove() local
258 list_for_each_entry_safe(sg, next, &gmap->children, list) { in gmap_remove()
259 list_del(&sg->list); in gmap_remove()
260 gmap_put(sg); in gmap_remove()
973 * Expected to be called with sg->mm->mmap_lock in read and
1019 * Expected to be called with sg->mm->mmap_lock in read
1055 * Called with sg->mm->mmap_lock in read.
1188 * @sg: pointer to the shadow guest address space structure
1192 * Called with the sg->guest_table_lock
1194 static inline void gmap_insert_rmap(struct gmap *sg, unsigned long vmaddr, in gmap_insert_rmap() argument
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| /openbmc/linux/include/crypto/ |
| H A D | scatterwalk.h | 21 struct scatterlist *sg, int num) in scatterwalk_crypto_chain() argument
23 if (sg) in scatterwalk_crypto_chain()
24 sg_chain(head, num, sg); in scatterwalk_crypto_chain()
31 unsigned int len = walk->sg->offset + walk->sg->length - walk->offset; in scatterwalk_pagelen()
51 return sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT); in scatterwalk_page()
60 struct scatterlist *sg) in scatterwalk_start() argument
62 walk->sg = sg; in scatterwalk_start()
63 walk->offset = sg->offset; in scatterwalk_start()
78 page = sg_page(walk->sg) + ((walk->offset - 1) >> PAGE_SHIFT); in scatterwalk_pagedone()
82 if (more && walk->offset >= walk->sg->offset + walk->sg->length) in scatterwalk_pagedone()
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| /openbmc/linux/net/core/ |
| H A D | skmsg.c | 15 if (msg->sg.end > msg->sg.start && in sk_msg_try_coalesce_ok()
16 elem_first_coalesce < msg->sg.end) in sk_msg_try_coalesce_ok()
19 if (msg->sg.end < msg->sg.start && in sk_msg_try_coalesce_ok()
20 (elem_first_coalesce > msg->sg.start || in sk_msg_try_coalesce_ok()
21 elem_first_coalesce < msg->sg.end)) in sk_msg_try_coalesce_ok()
31 u32 osize = msg->sg.size; in sk_msg_alloc()
34 len -= msg->sg.size; in sk_msg_alloc()
52 i = msg->sg.end; in sk_msg_alloc()
54 sge = &msg->sg.data[i]; in sk_msg_alloc()
66 sge = &msg->sg.data[msg->sg.end]; in sk_msg_alloc()
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| /openbmc/linux/drivers/net/ethernet/marvell/octeontx2/nic/ |
| H A D | otx2_txrx.c | 104 static void otx2_dma_unmap_skb_frags(struct otx2_nic *pfvf, struct sg_list *sg) in otx2_dma_unmap_skb_frags() argument
108 for (seg = 0; seg < sg->num_segs; seg++) { in otx2_dma_unmap_skb_frags()
109 otx2_dma_unmap_page(pfvf, sg->dma_addr[seg], in otx2_dma_unmap_skb_frags()
110 sg->size[seg], DMA_TO_DEVICE); in otx2_dma_unmap_skb_frags()
112 sg->num_segs = 0; in otx2_dma_unmap_skb_frags()
120 struct sg_list *sg; in otx2_xdp_snd_pkt_handler() local
124 sg = &sq->sg[snd_comp->sqe_id]; in otx2_xdp_snd_pkt_handler()
126 pa = otx2_iova_to_phys(pfvf->iommu_domain, sg->dma_addr[0]); in otx2_xdp_snd_pkt_handler()
127 otx2_dma_unmap_page(pfvf, sg->dma_addr[0], in otx2_xdp_snd_pkt_handler()
128 sg->size[0], DMA_TO_DEVICE); in otx2_xdp_snd_pkt_handler()
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| /openbmc/linux/net/mac80211/ |
| H A D | aead_api.c | 22 struct scatterlist sg[3]; in aead_encrypt() local
35 sg_init_table(sg, 3); in aead_encrypt()
36 sg_set_buf(&sg[0], __aad, aad_len); in aead_encrypt()
37 sg_set_buf(&sg[1], data, data_len); in aead_encrypt()
38 sg_set_buf(&sg[2], mic, mic_len); in aead_encrypt()
41 aead_request_set_crypt(aead_req, sg, sg, data_len, b_0); in aead_encrypt()
42 aead_request_set_ad(aead_req, sg[0].length); in aead_encrypt()
54 struct scatterlist sg[3]; in aead_decrypt() local
70 sg_init_table(sg, 3); in aead_decrypt()
71 sg_set_buf(&sg[0], __aad, aad_len); in aead_decrypt()
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| H A D | aes_gmac.c | 20 struct scatterlist sg[5]; in ieee80211_aes_gmac() local
41 sg_init_table(sg, 5); in ieee80211_aes_gmac()
42 sg_set_buf(&sg[0], __aad, GMAC_AAD_LEN); in ieee80211_aes_gmac()
43 sg_set_buf(&sg[1], zero, 8); in ieee80211_aes_gmac()
44 sg_set_buf(&sg[2], data + 8, data_len - 8 - GMAC_MIC_LEN); in ieee80211_aes_gmac()
45 sg_set_buf(&sg[3], zero, GMAC_MIC_LEN); in ieee80211_aes_gmac()
46 sg_set_buf(&sg[4], mic, GMAC_MIC_LEN); in ieee80211_aes_gmac()
48 sg_init_table(sg, 4); in ieee80211_aes_gmac()
49 sg_set_buf(&sg[0], __aad, GMAC_AAD_LEN); in ieee80211_aes_gmac()
50 sg_set_buf(&sg[1], data, data_len - GMAC_MIC_LEN); in ieee80211_aes_gmac()
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| /openbmc/linux/drivers/dma/ |
| H A D | dma-axi-dmac.c | 120 struct axi_dmac_sg sg[]; member
212 struct axi_dmac_sg *sg; in axi_dmac_start_transfer() local
229 sg = &desc->sg[desc->num_submitted]; in axi_dmac_start_transfer()
232 if (sg->id != AXI_DMAC_SG_UNUSED) { in axi_dmac_start_transfer()
233 sg->schedule_when_free = true; in axi_dmac_start_transfer()
249 sg->id = axi_dmac_read(dmac, AXI_DMAC_REG_TRANSFER_ID); in axi_dmac_start_transfer()
252 axi_dmac_write(dmac, AXI_DMAC_REG_DEST_ADDRESS, sg->dest_addr); in axi_dmac_start_transfer()
253 axi_dmac_write(dmac, AXI_DMAC_REG_DEST_STRIDE, sg->dest_stride); in axi_dmac_start_transfer()
257 axi_dmac_write(dmac, AXI_DMAC_REG_SRC_ADDRESS, sg->src_addr); in axi_dmac_start_transfer()
258 axi_dmac_write(dmac, AXI_DMAC_REG_SRC_STRIDE, sg->src_stride); in axi_dmac_start_transfer()
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| /openbmc/linux/drivers/crypto/gemini/ |
| H A D | sl3516-ce-cipher.c | 32 struct scatterlist *sg; in sl3516_ce_need_fallback() local
41 * Note: TX need one control desc for each SG in sl3516_ce_need_fallback()
53 sg = areq->src; in sl3516_ce_need_fallback()
54 while (sg) { in sl3516_ce_need_fallback()
55 if ((sg->length % 16) != 0) { in sl3516_ce_need_fallback()
59 if ((sg_dma_len(sg) % 16) != 0) { in sl3516_ce_need_fallback()
63 if (!IS_ALIGNED(sg->offset, 16)) { in sl3516_ce_need_fallback()
67 sg = sg_next(sg); in sl3516_ce_need_fallback()
69 sg = areq->dst; in sl3516_ce_need_fallback()
70 while (sg) { in sl3516_ce_need_fallback()
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| /openbmc/linux/drivers/crypto/allwinner/sun8i-ss/ |
| H A D | sun8i-ss-cipher.c | 30 struct scatterlist *sg; in sun8i_ss_need_fallback() local
45 sg = areq->src; in sun8i_ss_need_fallback()
46 while (sg) { in sun8i_ss_need_fallback()
47 todo = min(len, sg->length); in sun8i_ss_need_fallback()
52 if (!IS_ALIGNED(sg->offset, 16)) { in sun8i_ss_need_fallback()
57 sg = sg_next(sg); in sun8i_ss_need_fallback()
60 sg = areq->dst; in sun8i_ss_need_fallback()
61 while (sg) { in sun8i_ss_need_fallback()
62 todo = min(len, sg->length); in sun8i_ss_need_fallback()
67 if (!IS_ALIGNED(sg->offset, 16)) { in sun8i_ss_need_fallback()
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| /openbmc/linux/drivers/infiniband/hw/mlx5/ |
| H A D | umr.c | 491 struct ib_sge *sg) in mlx5r_umr_unmap_free_xlt() argument
495 dma_unmap_single(ddev, sg->addr, sg->length, DMA_TO_DEVICE); in mlx5r_umr_unmap_free_xlt()
496 mlx5r_umr_free_xlt(xlt, sg->length); in mlx5r_umr_unmap_free_xlt()
502 static void *mlx5r_umr_create_xlt(struct mlx5_ib_dev *dev, struct ib_sge *sg, in mlx5r_umr_create_xlt() argument
513 sg->length = nents * ent_size; in mlx5r_umr_create_xlt()
514 dma = dma_map_single(ddev, xlt, sg->length, DMA_TO_DEVICE); in mlx5r_umr_create_xlt()
517 mlx5r_umr_free_xlt(xlt, sg->length); in mlx5r_umr_create_xlt()
520 sg->addr = dma; in mlx5r_umr_create_xlt()
521 sg->lkey = dev->umrc.pd->local_dma_lkey; in mlx5r_umr_create_xlt()
528 unsigned int flags, struct ib_sge *sg) in mlx5r_umr_set_update_xlt_ctrl_seg() argument
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| /openbmc/linux/drivers/target/iscsi/cxgbit/ |
| H A 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()
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| /openbmc/linux/samples/kfifo/ |
| H A D | dma-example.c | 26 struct scatterlist sg[10]; in example_init() local
58 * We need two different SG entries: one for the free space area at the in example_init()
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()
75 "sg[%d] -> " 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()
104 "sg[%d] -> " in example_init()
106 i, sg_page(&sg[i]), sg[i].offset, sg[i].length); in example_init()
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| /openbmc/linux/arch/powerpc/platforms/powernv/ |
| H A D | opal-sensor-groups.c | 27 struct attribute_group sg; member
129 static int __init 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()
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| /openbmc/linux/drivers/dma-buf/ |
| H A D | udmabuf.c | 29 struct sg_table *sg; member
92 struct sg_table *sg; in get_sg_table() local
95 sg = kzalloc(sizeof(*sg), GFP_KERNEL); in get_sg_table()
96 if (!sg) in get_sg_table()
98 ret = sg_alloc_table_from_pages(sg, ubuf->pages, ubuf->pagecount, in get_sg_table()
103 ret = dma_map_sgtable(dev, sg, direction, 0); in get_sg_table()
106 return sg; in get_sg_table()
109 sg_free_table(sg); in get_sg_table()
110 kfree(sg); in get_sg_table()
114 static void put_sg_table(struct device *dev, struct sg_table *sg, in put_sg_table() argument
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