diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-03 17:12:13 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-03 17:12:13 -0700 |
commit | 7f0ef0267e20d62d45d527911a993b1e998f4968 (patch) | |
tree | de51abc7da5903f59d83e23937f22420164c9477 /crypto/async_tx/async_memset.c | |
parent | 862f0012549110d6f2586bf54b52ed4540cbff3a (diff) | |
parent | 9307c29524502c21f0e8a6d96d850b2f5bc0bd9a (diff) |
Merge branch 'akpm' (updates from Andrew Morton)
Merge first patch-bomb from Andrew Morton:
- various misc bits
- I'm been patchmonkeying ocfs2 for a while, as Joel and Mark have been
distracted. There has been quite a bit of activity.
- About half the MM queue
- Some backlight bits
- Various lib/ updates
- checkpatch updates
- zillions more little rtc patches
- ptrace
- signals
- exec
- procfs
- rapidio
- nbd
- aoe
- pps
- memstick
- tools/testing/selftests updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (445 commits)
tools/testing/selftests: don't assume the x bit is set on scripts
selftests: add .gitignore for kcmp
selftests: fix clean target in kcmp Makefile
selftests: add .gitignore for vm
selftests: add hugetlbfstest
self-test: fix make clean
selftests: exit 1 on failure
kernel/resource.c: remove the unneeded assignment in function __find_resource
aio: fix wrong comment in aio_complete()
drivers/w1/slaves/w1_ds2408.c: add magic sequence to disable P0 test mode
drivers/memstick/host/r592.c: convert to module_pci_driver
drivers/memstick/host/jmb38x_ms: convert to module_pci_driver
pps-gpio: add device-tree binding and support
drivers/pps/clients/pps-gpio.c: convert to module_platform_driver
drivers/pps/clients/pps-gpio.c: convert to devm_* helpers
drivers/parport/share.c: use kzalloc
Documentation/accounting/getdelays.c: avoid strncpy in accounting tool
aoe: update internal version number to v83
aoe: update copyright date
aoe: perform I/O completions in parallel
...
Diffstat (limited to 'crypto/async_tx/async_memset.c')
-rw-r--r-- | crypto/async_tx/async_memset.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/crypto/async_tx/async_memset.c b/crypto/async_tx/async_memset.c deleted file mode 100644 index 05a4d1e0014..00000000000 --- a/crypto/async_tx/async_memset.c +++ /dev/null @@ -1,89 +0,0 @@ -/* - * memory fill offload engine support - * - * Copyright © 2006, Intel Corporation. - * - * Dan Williams <dan.j.williams@intel.com> - * - * with architecture considerations by: - * Neil Brown <neilb@suse.de> - * Jeff Garzik <jeff@garzik.org> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * - */ -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/mm.h> -#include <linux/dma-mapping.h> -#include <linux/async_tx.h> - -/** - * async_memset - attempt to fill memory with a dma engine. - * @dest: destination page - * @val: fill value - * @offset: offset in pages to start transaction - * @len: length in bytes - * - * honored flags: ASYNC_TX_ACK - */ -struct dma_async_tx_descriptor * -async_memset(struct page *dest, int val, unsigned int offset, size_t len, - struct async_submit_ctl *submit) -{ - struct dma_chan *chan = async_tx_find_channel(submit, DMA_MEMSET, - &dest, 1, NULL, 0, len); - struct dma_device *device = chan ? chan->device : NULL; - struct dma_async_tx_descriptor *tx = NULL; - - if (device && is_dma_fill_aligned(device, offset, 0, len)) { - dma_addr_t dma_dest; - unsigned long dma_prep_flags = 0; - - if (submit->cb_fn) - dma_prep_flags |= DMA_PREP_INTERRUPT; - if (submit->flags & ASYNC_TX_FENCE) - dma_prep_flags |= DMA_PREP_FENCE; - dma_dest = dma_map_page(device->dev, dest, offset, len, - DMA_FROM_DEVICE); - - tx = device->device_prep_dma_memset(chan, dma_dest, val, len, - dma_prep_flags); - } - - if (tx) { - pr_debug("%s: (async) len: %zu\n", __func__, len); - async_tx_submit(chan, tx, submit); - } else { /* run the memset synchronously */ - void *dest_buf; - pr_debug("%s: (sync) len: %zu\n", __func__, len); - - dest_buf = page_address(dest) + offset; - - /* wait for any prerequisite operations */ - async_tx_quiesce(&submit->depend_tx); - - memset(dest_buf, val, len); - - async_tx_sync_epilog(submit); - } - - return tx; -} -EXPORT_SYMBOL_GPL(async_memset); - -MODULE_AUTHOR("Intel Corporation"); -MODULE_DESCRIPTION("asynchronous memset api"); -MODULE_LICENSE("GPL"); |