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3deb9979c7
linux/drivers/mtd
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Masahiro Yamada 3deb9979c7 mtd: nand: allocate aligned buffers if NAND_OWN_BUFFERS is unset 
Some NAND controllers are using DMA engine requiring a specific
buffer alignment.  The core provides no guarantee on the nand_buffers
pointers, which forces some drivers to allocate their own buffers
and pass the NAND_OWN_BUFFERS flag.

Rework the nand_buffers allocation logic to allocate each buffer
independently.  This should make most NAND controllers/DMA engine
happy, and allow us to get rid of these custom buf allocation in
NAND controller drivers.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-04-25 14:18:37 +02:00
..
chips mtd: cfi_cmdset_0020: Deinline do_write_buffer, save 5316 bytes 2016-07-09 18:53:33 -07:00
devices Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2017-02-28 11:50:53 -08:00
lpddr
maps mtd: physmap_of: fixup gemini/versatile dependencies 2017-02-10 09:53:41 -08:00
nand mtd: nand: allocate aligned buffers if NAND_OWN_BUFFERS is unset 2017-04-25 14:18:37 +02:00
onenand mtd: silence some uninitialized variable warnings 2016-07-09 18:14:39 -07:00
spi-nor mtd: aspeed: remove redundant dev_err call in aspeed_smc_probe() 2017-02-10 11:20:22 -08:00
tests sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
ubi statx: Add a system call to make enhanced file info available 2017-03-02 20:51:15 -05:00
afs.c
ar7part.c
bcm47xxpart.c mtd: bcm47xxpart: support layouts with multiple TRX partitions 2017-02-09 18:59:45 -08:00
bcm63xxpart.c mtd: bcm63xxpart: give width specifier an 'int', not 'size_t' 2016-03-07 13:13:58 -08:00
cmdlinepart.c
ftl.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
inftlcore.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
inftlmount.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
Kconfig mtd: bcm63xxpart: Remove dependency on mach-bcm63xx 2016-02-12 10:27:48 -08:00
Makefile
mtd_blkdevs.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
mtdblock_ro.c
mtdblock.c
mtdchar.c mtd: Fix typo: "occured" -> "occurred" 2017-02-08 14:24:57 -08:00
mtdconcat.c mtd: create an mtd_ooblayout_ops struct to ease ECC layout definition 2016-04-19 22:05:55 +02:00
mtdcore.c mtd: fix typos in ooblayout comment blocks 2017-02-08 13:32:08 -08:00
mtdcore.h
mtdoops.c
mtdpart.c mtd: Add partition device node to mtd partition devices 2017-02-09 19:19:25 -08:00
mtdsuper.c
mtdswap.c mtd: mtdswap: fix spelling mistake "erassure" -> "erasure" 2016-11-22 11:43:52 -08:00
nftlcore.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
nftlmount.c
ofpart.c mtd: Add partition device node to mtd partition devices 2017-02-09 19:19:25 -08:00
redboot.c
rfd_ftl.c
sm_ftl.c treewide: Fix typos in printk 2016-04-18 11:23:24 +02:00
sm_ftl.h
ssfdc.c mtd: Replace if and BUG with BUG_ON 2016-07-09 18:48:54 -07:00