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2010-05-25Merge remote branch 'origin' into secretlab/next-spiGrant Likely6890-214617/+469790
2010-05-25spi/davinci: Fix clock prescale factor computationThomas Koeller1-3/+9
Computation of the clock prescaler value returned bogus results if the requested SPI clock was impossible to set. It now sets either the maximum or minimum clock frequency, as appropriate. Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25spi: move bitbang txrx utility functions to private headerhartleys7-111/+98
A number of files in drivers/spi fail checkincludes.pl due to the double include of <linux/spi/spi_bitbang.h>. The first include is needed to get the struct spi_bitbang definition and the spi_bitbang_* function prototypes. The second include happens after defining EXPAND_BITBANG_TXRX to get the inlined bitbang_txrx_* utility functions. The <linux/spi/spi_bitbang.h> header is also included by a number of other spi drivers, as well as some arch/ code, in order to use struct spi_bitbang and the associated functions. To fix the double include, and remove any potential confusion about it, move the inlined bitbang_txrx_* functions to a new private header in drivers/spi and also remove the need to define EXPAND_BITBANG_TXRX. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25spi/mpc5121: Add SPI master driver for MPC5121 PSCAnatolij Gustschin4-0/+585
Signed-off-by: John Rigby <jcrigby@gmail.com> Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25powerpc/mpc5121: move PSC FIFO memory init to platform codeAnatolij Gustschin2-69/+78
Since PSC could also be used in other modes than UART mode we move PSC FIFO memory initialization from serial driver to common platform code. The initialized FIFO memory slices may not overlap, so the most easy way would be to configure them all at once at init time for all PSC devices. This is now done by this patch. Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25spi/ep93xx: implemented driver for Cirrus EP93xx SPI controllerMika Westerberg5-0/+1071
This patch adds an SPI master driver for the Cirrus EP93xx SPI controller found in EP93xx chips. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25Documentation/spi/* compile warning fixPrarit Bhargava1-2/+2
Fix this warning: Documentation/spi/spidev_fdx.c: In function `do_msg': Documentation/spi/spidev_fdx.c:61: warning: cast from pointer to integer of different size Documentation/spi/spidev_fdx.c:64: warning: cast from pointer to integer of different size buf should be unsigned long to match native arch on 32-bit x86 compile. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25spi/omap2_mcspi: Check params before dereference or useScott Ellis1-8/+11
Check spi->chip_select for range before use. Signed-off-by: Scott Ellis <scott@jumpnowtek.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25spi/omap2_mcspi: add turbo mode supportRoman Tereshonkov1-21/+111
Turbo mode allows to read data to shift register when rx-buffer is full thus improving the perfomance. This feature is available for RX-only mode. In PIO turbo mode when the penultimate word is available in RX-buffer the controller should be disabled before reading data to prevent the next transaction triggering. The controller itself handles the last word to be correctly loaded to shift-register and then transferred to RX-buffer. The turbo mode is enabled by setting turbo_mode parameter to 1. This parameter is a part of omap2_mcspi_device_config structure which is passed through the spi_device controller_data pointer. Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25spi/omap2_mcspi: change default DMA_MIN_BYTES value to 160Roman Tereshonkov1-1/+1
The value 160 has been obtained as optimal in testing it for wl1271 which use spi for communication. In some sense this change might also influence on other spi devices connected to omap2_mcspi controller. Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25spi/pl022: fix stop queue procedureGrzegorz Sygieda1-1/+1
This fix prevents queue being marked as "stopped", if data exists in the queue list. Signed-off-by: Grzegorz Sygieda <grzegorz.sygieda@tieto.com> Signed-off-by: Lukasz Baj <lukasz.baj@tieto.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25spi/pl022: add support for the PL023 derivateLinus Walleij2-18/+104
This adds support for a further ST variant of the PL022 called PL023. Some differences in the control registers due to being stripped down to SPI mode only, and a new clock feedback sample delay config setting is available. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25spi/pl022: fix up differences between ARM and ST versionsLinus Walleij2-57/+125
The PL022 SPI driver did not cleanly separate between the original unmodified ARM version and the ST Microelectronics versions. Split this more cleanly and fix some whitespace moaning from checkpatch at the same time. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25spi/spi_mpc8xxx: Do not use map_tx_dma to unmap rx_dmaJoakim Tjernlund1-1/+1
This fixes a typo were map_tx_dma is used instead of map_rx_dma, casing the driver to unmap rx_dma when it shouldn't. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25spi/spi_mpc8xxx: Fix QE mode Litte EndianJoakim Tjernlund1-31/+70
QE mode uses Little Endian so words > 8 bits are byte swapped. Workaround this by always enforcing wordsize 8 for words > 8 bits. Unfortunately this will not work for LSB transfers where wordsize is > 8 bits so disable these for now. Also move the different quirks into its own function to keep mpc8xxx_spi_setup_transfer() sane. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6Linus Torvalds4-8/+8
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6: cmd640: fix kernel oops in test_irq() method pdc202xx_old: ignore "FIFO empty" bit in test_irq() method pdc202xx_old: wire test_irq() method for PDC2026x IDE: pass IRQ flags to the IDE core ide: fix comment typo in ide.h
2010-05-24Merge branch 'for-linus' of ↵Linus Torvalds48-3241/+1938
git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (30 commits) Blackfin: SMP: fix continuation lines Blackfin: acvilon: fix timeout usage for I2C Blackfin: fix typo in BF537 IRQ comment Blackfin: unify duplicate MEM_MT48LC32M8A2_75 kconfig options Blackfin: set ARCH_KMALLOC_MINALIGN Blackfin: use atomic kmalloc in L1 alloc so it too can be atomic Blackfin: another year of changes (update copyright in boot log) Blackfin: optimize strncpy a bit Blackfin: isram: clean up ITEST_COMMAND macro and improve the selftests Blackfin: move string functions to normal lib/ assembly Blackfin: SIC: cut down on IAR MMR reads a bit Blackfin: bf537-minotaur: fix build errors due to header changes Blackfin: kgdb: pass up the CC register instead of a 0 stub Blackfin: handle HW errors in the new "FAULT" printing code Blackfin: show the whole accumulator in the pseudo DBG insn Blackfin: support all possible registers in the pseudo instructions Blackfin: add support for the DBG (debug output) pseudo insn Blackfin: change the BUG opcode to an unused 16-bit opcode Blackfin: allow NMI watchdog to be used w/RETN as a scratch reg Blackfin: add support for the DBGA (debug assert) pseudo insn ...
2010-05-24Merge branch 'bkl/ioctl' of ↵Linus Torvalds68-312/+669
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing * 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing: uml: Pushdown the bkl from harddog_kern ioctl sunrpc: Pushdown the bkl from sunrpc cache ioctl sunrpc: Pushdown the bkl from ioctl autofs4: Pushdown the bkl from ioctl uml: Convert to unlocked_ioctls to remove implicit BKL ncpfs: BKL ioctl pushdown coda: Clean-up whitespace problems in pioctl.c coda: BKL ioctl pushdown drivers: Push down BKL into various drivers isdn: Push down BKL into ioctl functions scsi: Push down BKL into ioctl functions dvb: Push down BKL into ioctl functions smbfs: Push down BKL into ioctl function coda/psdev: Remove BKL from ioctl function um/mmapper: Remove BKL usage sn_hwperf: Kill BKL usage hfsplus: Push down BKL into ioctl function
2010-05-24Merge git://git.infradead.org/battery-2.6Linus Torvalds18-168/+901
* git://git.infradead.org/battery-2.6: ds2760_battery: Document ABI change ds2760_battery: Make charge_now and charge_full writeable power_supply: Add support for writeable properties power_supply: Use attribute groups power_supply: Add test_power driver tosa_battery: Fix build error due to direct driver_data usage wm97xx_battery: Quieten sparse warning (bat_set_pdata not declared) ds2782_battery: Get rid of magic numbers in driver_data ds2782_battery: Add support for ds2786 battery gas gauge pda_power: Add function callbacks for suspend and resume wm831x_power: Use genirq Driver for Zipit Z2 battery chip ds2782_battery: Fix clientdata on removal
2010-05-24Merge branch 'timers-for-linus-urgent' of ↵Linus Torvalds2-7/+8
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-for-linus-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: timers: Fix slack calculation for expired timers timekeeping: Fix timezone update
2010-05-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds27-207/+916
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (25 commits) sh: fix up sh7785lcr_32bit_defconfig. arch/sh/lib/strlen.S: Checkpatch cleanup sh: fix up sh7786 dmaengine build. sh: guard cookie consistency across termination in the DMA driver sh: prevent the DMA driver from unloading, while in use sh: fix Oops in the serial SCI driver sh: allow platforms to specify SD-card supported voltages mmc: let MFD's provide supported Vdd card voltages to tmio_mmc sh: disable SD-card write-protection detection on kfr2r09 mfd: pass platform flags down to the tmio_mmc driver tmio: add a platform flag to disable card write-protection detection sh: Add SDHI DMA support to migor sh: Add SDHI DMA support to kfr2r09 sh: Add SDHI DMA support to ms7724se sh: Add SDHI DMA support to ecovec mmc: add DMA support to tmio_mmc driver, when used on SuperH sh: prepare the SDHI MFD driver to pass DMA configuration to tmio_mmc.c mmc: prepare tmio_mmc for passing of DMA configuration from the MFD cell sh: add DMA slave definitions to sh7724 sh: add DMA slaves for two SDHI controllers to sh7722 ...
2010-05-24Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osdLinus Torvalds2-1/+31
* 'for-linus' of git://git.open-osd.org/linux-open-osd: exofs: confusion between kmap() and kmap_atomic() api exofs: Add default address_space_operations
2010-05-24Revert "ath9k: Group Key fix for VAPs"Linus Torvalds3-27/+3
This reverts commit 03ceedea972a82d343fa5c2528b3952fa9e615d5, since it breaks resume from suspend-to-ram on Rafael's Acer Ferrari One. NetworkManager thinks everything is ok, but it can't connect to the AP to get an IP address after the resume. In fact, it even breaks resume for non-ath9k chipsets: reverting it also fixes Rafael's Toshiba Protege R500 with the iwlagn driver. As Johannes says: "Indeed, this patch needs to be reverted. That mac80211 change is wrong and completely unnecessary." Reported-and-requested-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Johannes Berg <johannes@sipsolutions.net> Cc: Daniel Yingqiang Ma <yma.cool@gmail.com> Cc: John W. Linville <linville@tuxdriver.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6Linus Torvalds4-25/+32
* git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6: fat: convert to unlocked_ioctl fat: Cleanup nls_unload() usage fat: use pack_hex_byte() instead of custom one
2010-05-24Merge branch 'for-linus' of ↵Linus Torvalds9-33/+261
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: Optimize TCREATE by eliminating a redundant fid clone. 9p: cleanup: remove unneeded assignment 9p: Add mksock support fs/9p: Make sure we properly instantiate dentry. 9p: add 9P2000.L rename operation 9p: add 9P2000.L statfs operation 9p: VFS switches for 9p2000.L: VFS switches 9p: VFS switches for 9p2000.L: protocol and client changes
2010-05-24Merge branch 'for-linus' of ↵Linus Torvalds30-759/+876
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (59 commits) ceph: reuse mon subscribe message instead of allocated anew ceph: avoid resending queued message to monitor ceph: Storage class should be before const qualifier ceph: all allocation functions should get gfp_mask ceph: specify max_bytes on readdir replies ceph: cleanup pool op strings ceph: Use kzalloc ceph: use common helper for aborted dir request invalidation ceph: cope with out of order (unsafe after safe) mds reply ceph: save peer feature bits in connection structure ceph: resync headers with userland ceph: use ceph. prefix for virtual xattrs ceph: throw out dirty caps metadata, data on session teardown ceph: attempt mds reconnect if mds closes our session ceph: clean up send_mds_reconnect interface ceph: wait for mds OPEN reply to indicate reconnect success ceph: only send cap releases when mds is OPEN|HUNG ceph: dicard cap releases on mds restart ceph: make mon client statfs handling more generic ceph: drop src address(es) from message header [new protocol feature] ...
2010-05-24Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds211-974/+1254
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: of: change of_match_device to work with struct device of: Remove duplicate fields from of_platform_driver drivercore: Add of_match_table to the common device drivers arch/microblaze: Move dma_mask from of_device into pdev_archdata arch/powerpc: Move dma_mask from of_device into pdev_archdata of: eliminate of_device->node and dev_archdata->{of,prom}_node of: Always use 'struct device.of_node' to get device node pointer. i2c/of: Allow device node to be passed via i2c_board_info driver-core: Add device node pointer to struct device of: protect contents of of_platform.h and of_device.h of/flattree: Make unflatten_device_tree() safe to call from any arch of/flattree: make of_fdt.h safe to unconditionally include.
2010-05-24Merge branch 'slab-for-linus' of ↵Linus Torvalds7-98/+200
git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'slab-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slub: Use alloc_pages_exact_node() for page allocation slub: __kmalloc_node_track_caller should trace kmalloc_large_node case slub: Potential stack overflow crypto: Use ARCH_KMALLOC_MINALIGN for CRYPTO_MINALIGN now that it's exposed mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN to <linux/slub_def.h> mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN to <linux/slob_def.h> mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN to <linux/slab_def.h> slab: Fix missing DEBUG_SLAB last user slab: add memory hotplug support slab: Fix continuation lines
2010-05-24Documentation: update SubmitChecklist for O=objdir and kconfig testingRandy Dunlap1-0/+12
Add build testing using 'O=builddir'. Add build testing with various kconfig symbols disabled, listing common ones that are known to cause build problems. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24fusion: fix kernel-doc notationBen Hutchings1-4/+2
The function name must be followed by a space, hypen, space, and a short description. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Eric Moore <Eric.Moore@lsi.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24scsi_scan.c: fix/convert functions to use kernel-docRandy Dunlap1-17/+9
scsi_scan.c: fix incorrectly formatted kernel-doc notation & convert documentation of 2 functions into kernel-doc. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24Documentation/vm: use better value for MAP_HUGETLBCarlo Marcelo Arenas Belon1-1/+1
documentation: slightly more correct value for MAP_HUGETLB in map_hugetlb.c still not correct for alpha, mips, parisc or xtensa but working out of the box in the most common architectures without having to deal with complicated macros or including architecture specific headers. Signed-off-by: Carlo Marcelo Arenas Belon <carenas@sajinet.com.pe> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24Documentation/timers/hpet_example: drop duplicate header filesAndrea Gelmini1-2/+0
Documentation/timers/hpet_example.c: fcntl.h is included more than once. Documentation/timers/hpet_example.c: signal.h is included more than once. Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24Documentation/development-process: add staging & mmotm infoRandy Dunlap1-6/+8
Update explanation of mmotm. Add explanation of drivers/staging/. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24Documentation/development-process: add maintainers and git infoRandy Dunlap2-4/+13
Add info on maintainers and persistent posting. Update git home page. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24docbook: make mtd nand module init staticH Hartley Sweeten1-1/+1
In the example the module_init function should be static. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24timers: Fix slack calculation for expired timersJeff Chua1-3/+4
commit 3bbb9ec946 (timers: Introduce the concept of timer slack for legacy timers) does not take the case into account when the timer is already expired. This broke wireless drivers. The solution is not to apply slack to already expired timers. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Arjan van de Ven <arjan@linux.intel.com>
2010-05-24timekeeping: Fix timezone updateThomas Gleixner1-4/+4
commit 64ce4c2f (time: Clean up warp_clock()) breaks the timezone update in a very subtle way. To avoid the direct access to timekeeping internals it adds the timezone delta to the current time with timespec_add_safe(). This works nicely when the timezone delta is > 0. If timezone delta is < 0 then the wrap check in timespec_add_safe() triggers and timespec_add_safe() returns TIME_MAX and screws up timekeeping completely. The comment above timespec_add_safe() says: It's assumed that both values are valid (>= 0) Add the timezone seconds adjustment directly. Reported-by: Rafael J. Wysocki <rjw@sisk.pl> Tested-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2010-05-24sh: fix up sh7785lcr_32bit_defconfig.Paul Mundt1-109/+164
The build scripts inadvertently dropped this down to 29-bit, fix it back up. Reported-by: Raul Porcel <armin76@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-24arch/sh/lib/strlen.S: Checkpatch cleanupAndrea Gelmini1-1/+1
arch/sh/lib/strlen.S:38: ERROR: trailing whitespace Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-22Blackfin: SMP: fix continuation linesJoe Perches1-2/+2
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22Blackfin: acvilon: fix timeout usage for I2CWolfram Sang1-1/+2
The timeout value is in jiffies, so it should be using HZ, not a plain number. As '10000' is ambiguous, 1HZ is used as conservative default. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Valentin Yakovenkov <yakovenkov@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22Blackfin: fix typo in BF537 IRQ commentMichael Hennerich1-1/+1
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22Blackfin: unify duplicate MEM_MT48LC32M8A2_75 kconfig optionsMike Frysinger1-6/+1
Reported-by: Christoph Egger <siccegge@cs.fau.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22Blackfin: set ARCH_KMALLOC_MINALIGNFUJITA Tomonori1-0/+2
Architectures that handle DMA-non-coherent memory need to set ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe: the buffer doesn't share a cache with the others. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22Blackfin: use atomic kmalloc in L1 alloc so it too can be atomicMike Frysinger1-1/+2
Some drivers allocate L1 SRAM in atomic contexts, so make sure these functions also use GFP_ATOMIC to avoid BUG()'s. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22Blackfin: another year of changes (update copyright in boot log)Mike Frysinger1-2/+2
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22Blackfin: optimize strncpy a bitRobin Getz2-13/+47
Add a little strncpy optimization which can easily cut boot time by 20%. When the kernel is booting with initramfs, it builds up the filesystem from a cpio archive by calling strncpy_from_user() via fs/namei.c's do_getname() on every file in the archive (which can be lots) with a length of PATH_MAX (1024). This causes the dest of the strncpy to be padded with many NUL bytes. This optimization mostly causes these NUL bytes to be padded with a call to memset() which is already optimized for filling memory quickly, but the hardware loop helps a little bit as well. Boot time measured with 'loglevel=0' so UART speed doesn't get in the way. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22Blackfin: isram: clean up ITEST_COMMAND macro and improve the selftestsMike Frysinger1-43/+51
The IADDR2DTEST() macro had some duplicated logic with bit 11 and some incorrect comments, so scrub all of that. In order to verify these aren't a problem (and won't be in the future), extend the self tests to operate on as much L1 SRAM as possible. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22Blackfin: move string functions to normal lib/ assemblyRobin Getz11-184/+226
Since 'extern inline' doesn't work correctly in the context of the Linux kernel (too many overriding defines), move the string functions to normal lib/ assembly files (like the existing mem funcs). This avoids the forced inline all over the kernel and allows us to place them constantly in L1. This also avoids some module failures when gcc inserts calls to string functions but the kernel build system doesn't fully consult the library archives. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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