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Searched refs:bounce (Results 1 – 25 of 34) sorted by relevance

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/linux/lib/
H A Dtest_hmm.c129 static int dmirror_bounce_init(struct dmirror_bounce *bounce, in dmirror_bounce_init() argument
133 bounce->addr = addr; in dmirror_bounce_init()
134 bounce->size = size; in dmirror_bounce_init()
135 bounce->cpages = 0; in dmirror_bounce_init()
136 bounce->ptr = vmalloc(size); in dmirror_bounce_init()
137 if (!bounce->ptr) in dmirror_bounce_init()
157 static void dmirror_bounce_fini(struct dmirror_bounce *bounce) in dmirror_bounce_fini() argument
159 vfree(bounce->ptr); in dmirror_bounce_fini()
364 unsigned long end, struct dmirror_bounce *bounce) in dmirror_do_read() argument
369 ptr = bounce->ptr + ((start - bounce->addr) & PAGE_MASK); in dmirror_do_read()
[all …]
/linux/arch/s390/mm/
H A Dmaccess.c154 void *bounce = ptr; in xlate_dev_mem_ptr() local
166 bounce = (void *)__get_free_page(GFP_ATOMIC); in xlate_dev_mem_ptr()
167 if (!bounce) in xlate_dev_mem_ptr()
173 memcpy(bounce, ptr, size); in xlate_dev_mem_ptr()
177 memcpy(bounce, ptr, size); in xlate_dev_mem_ptr()
179 memcpy(bounce, ptr, size); in xlate_dev_mem_ptr()
184 return bounce; in xlate_dev_mem_ptr()
/linux/drivers/gpu/drm/
H A Ddrm_cache.c227 char bounce[MEMCPY_BOUNCE_SIZE]; in memcpy_fallback() local
232 memcpy_fromio(bounce, _src, MEMCPY_BOUNCE_SIZE); in memcpy_fallback()
233 memcpy_toio(_dst, bounce, MEMCPY_BOUNCE_SIZE); in memcpy_fallback()
239 memcpy_fromio(bounce, _src, MEMCPY_BOUNCE_SIZE); in memcpy_fallback()
240 memcpy_toio(_dst, bounce, MEMCPY_BOUNCE_SIZE); in memcpy_fallback()
/linux/drivers/gpu/drm/vmwgfx/
H A Dvmwgfx_ioctl.c131 void *bounce = NULL; in vmw_get_cap_3d_ioctl() local
149 bounce = vzalloc(size); in vmw_get_cap_3d_ioctl()
150 if (unlikely(bounce == NULL)) { in vmw_get_cap_3d_ioctl()
155 ret = vmw_devcaps_copy(dev_priv, vmw_fp->gb_aware, bounce, size); in vmw_get_cap_3d_ioctl()
159 ret = copy_to_user(buffer, bounce, size); in vmw_get_cap_3d_ioctl()
163 vfree(bounce); in vmw_get_cap_3d_ioctl()
/linux/drivers/char/
H A Dmem.c88 char *bounce; in read_mem() local
112 bounce = kmalloc(PAGE_SIZE, GFP_KERNEL); in read_mem()
113 if (!bounce) in read_mem()
141 probe = copy_from_kernel_nofault(bounce, ptr, sz); in read_mem()
146 remaining = copy_to_user(buf, bounce, sz); in read_mem()
159 kfree(bounce); in read_mem()
165 kfree(bounce); in read_mem()
/linux/Documentation/i2c/
H A Ddma-considerations.rst49 bounce buffer. But you don't need to care about that detail, just use the
50 returned buffer. If NULL is returned, the threshold was not met or a bounce
54 function ensures a potentially used bounce buffer is freed::
62 The bounce buffer handling from the core is generic and simple. It will always
63 allocate a new bounce buffer. If you want a more sophisticated handling (e.g.
/linux/fs/erofs/
H A Ddecompressor_deflate.c8 u8 bounce[PAGE_SIZE]; member
141 dctx.bounce = strm->bounce; in __z_erofs_deflate_decompress()
H A Ddecompressor_zstd.c7 u8 bounce[PAGE_SIZE]; member
173 dctx.bounce = strm->bounce; in z_erofs_zstd_decompress()
H A Ddecompressor_lzma.c8 u8 bounce[PAGE_SIZE]; member
186 dctx.bounce = strm->bounce; in z_erofs_lzma_decompress()
/linux/kernel/module/
H A Dsysfs.c32 char bounce[MODULE_SECT_READ_SIZE + 1]; in module_sect_read() local
46 wrote = scnprintf(bounce, sizeof(bounce), "0x%px\n", in module_sect_read()
50 memcpy(buf, bounce, count); in module_sect_read()
/linux/Documentation/devicetree/bindings/leds/
H A Dleds-el15203000.txt20 - bounce pattern
21 - inversed bounce pattern
/linux/drivers/block/
H A Dxen-blkfront.c220 unsigned int bounce:1; member
321 if (info->bounce) { in fill_grant_buffer()
341 if (info->bounce) in fill_grant_buffer()
387 if (info->bounce) in get_grant()
411 if (!info->bounce) { in get_indirect_grant()
714 .need_copy = rq_data_dir(req) && info->bounce, in blkif_queue_rw_req()
1001 "bounce buffer:", info->bounce ? "enabled" : "disabled;"); in xlvbd_flush()
1220 BUG_ON(info->bounce); in blkif_free_ring()
1237 if (info->bounce) in blkif_free_ring()
1258 if (info->bounce) in blkif_free_ring()
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/linux/drivers/gpu/drm/sun4i/
H A Dsun6i_mipi_dsi.c886 u8 *bounce; in sun6i_dsi_dcs_write_long() local
892 bounce = kzalloc(ALIGN(msg->tx_len + sizeof(crc), 4), GFP_KERNEL); in sun6i_dsi_dcs_write_long()
893 if (!bounce) in sun6i_dsi_dcs_write_long()
896 memcpy(bounce, msg->tx_buf, msg->tx_len); in sun6i_dsi_dcs_write_long()
899 crc = sun6i_dsi_crc_compute(bounce, msg->tx_len); in sun6i_dsi_dcs_write_long()
900 memcpy((u8 *)bounce + msg->tx_len, &crc, sizeof(crc)); in sun6i_dsi_dcs_write_long()
903 regmap_bulk_write(dsi->regs, SUN6I_DSI_CMD_TX_REG(1), bounce, DIV_ROUND_UP(len, 4)); in sun6i_dsi_dcs_write_long()
905 kfree(bounce); in sun6i_dsi_dcs_write_long()
/linux/drivers/mtd/nand/raw/
H A Dr852.c174 int bounce = 0; in r852_do_dma() local
193 bounce = 1; in r852_do_dma()
195 if (!bounce) { in r852_do_dma()
200 bounce = 1; in r852_do_dma()
203 if (bounce) { in r852_do_dma()
223 if (do_read && bounce) in r852_do_dma()
/linux/drivers/media/usb/go7007/
H A Dgo7007-driver.c82 void *bounce; in go7007_load_encoder() local
97 bounce = kmemdup(fw_entry->data + 16, fw_len, GFP_KERNEL); in go7007_load_encoder()
98 if (bounce == NULL) { in go7007_load_encoder()
105 go->boot_fw = bounce; in go7007_load_encoder()
/linux/arch/loongarch/include/asm/
H A Dkvm_eiointc.h67 u64 bounce[EIOINTC_IRQS_U64_NUMS]; member
/linux/arch/loongarch/kvm/intc/
H A Deiointc.c142 data = s->bounce[index]; in loongarch_eiointc_read()
261 old = s->bounce[index]; in loongarch_eiointc_write()
262 s->bounce[index] = (old & ~mask) | data; in loongarch_eiointc_write()
487 p = s->bounce + offset * 4; in kvm_eiointc_regs_access()
/linux/Documentation/leds/
H A Dleds-el15203000.rst114 Inverted bounce mode for Pipe LED::
/linux/drivers/gpu/drm/xe/
H A Dxe_migrate.c2377 void *bounce; in xe_migrate_access_memory() local
2381 bounce = kmalloc(XE_CACHELINE_BYTES, GFP_KERNEL); in xe_migrate_access_memory()
2382 if (!bounce) in xe_migrate_access_memory()
2398 bounce, in xe_migrate_access_memory()
2404 memcpy(bounce + ptr_offset, buf + buf_offset, copy_bytes); in xe_migrate_access_memory()
2408 bounce, in xe_migrate_access_memory()
2413 memcpy(buf + buf_offset, bounce + ptr_offset, in xe_migrate_access_memory()
2422 kfree(bounce); in xe_migrate_access_memory()
/linux/arch/arm/vfp/
H A Dvfpmodule.c775 goto bounce; in vfp_support_entry()
803 bounce: regs->ARM_pc += 4; in vfp_support_entry()
/linux/drivers/i3c/
H A Dmaster.c1852 void *bounce __free(kfree) = NULL; in i3c_master_dma_map_single()
1871 bounce = kzalloc(dma_xfer->map_len, GFP_KERNEL); in i3c_master_dma_map_single()
1873 bounce = kmemdup(buf, dma_xfer->map_len, GFP_KERNEL); in i3c_master_dma_map_single()
1874 if (!bounce) in i3c_master_dma_map_single()
1876 dma_buf = bounce; in i3c_master_dma_map_single()
1883 dma_xfer->bounce_buf = no_free_ptr(bounce); in i3c_master_dma_map_single()
/linux/Documentation/virt/hyperv/
H A Dcoco.rst214 Linux kernel DMA APIs, and so bounce buffering through decrypted swiotlb
220 equivalent of bounce buffering between encrypted and decrypted memory is
222 DMA APIs, and is bounce buffered through swiotlb memory implicitly like in
271 provides bounce-buffering, and although the data is not encrypted, the backing
/linux/Documentation/driver-api/usb/
H A Ddma.rst83 This may force your callers to do some bounce buffering, copying from
/linux/fs/notify/fanotify/
H A Dfanotify_user.c554 unsigned char bounce[FANOTIFY_INLINE_FH_LEN], *fh_buf; in copy_fid_info_to_user() local
617 memcpy(bounce, fh_buf, fh_len); in copy_fid_info_to_user()
618 fh_buf = bounce; in copy_fid_info_to_user()
/linux/drivers/net/
H A Dxen-netfront.c181 bool bounce; member
761 if (np->bounce || unlikely(PAGE_SIZE - offset < ETH_HLEN)) { in xennet_start_xmit()
2272 info->bounce = !xennet_trusted || in talk_to_netback()
2442 if (np->bounce) in xennet_connect()

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