/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() [all …]
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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. [all …]
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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() [all …]
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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 [all …]
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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() [all …]
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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 [all …]
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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() [all …]
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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 [all …]
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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() [all …]
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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() [all …]
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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 [all …]
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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 [all …]
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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() [all …]
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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() [all …]
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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() [all …]
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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() [all …]
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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() [all …]
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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() [all …]
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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() [all …]
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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() [all …]
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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 [all …]
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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() [all …]
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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() [all …]
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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() [all …]
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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 [all …]
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