| Commit message (Collapse) | Author | Age | Files | Lines |
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* 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
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When implementing the test_iqr() method, I forgot that this driver is not an
ordinary PCI driver and also needs to support VLB variant of the chip. Moreover,
'hwif->dev' should be NULL, potentially causing oops in pci_read_config_byte().
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The driver takes into account not only the interrupt status bit but
also "FIFO empty" bit in its test_irq() method. This actually is a
superfluous check since for the DMA commands calling the
dma_test_irq() method further in the interrupt handler makes sure FIFO
is emptied.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In the commit e0321fbe6d34b4bb514fb6daff9e0859e5d76001 (pdc202xx_old:
implement test_irq() method (take 2)) I forgot to modify
'pdc2026x_port_ops'... :-/
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This enables shared IRQs and other features to be used with platform devices
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix typo in the comment to the 'dma_mode' field of the 'struct ide_drive_s'
introduced by the commit 3fccaa192b9501e79a57e02e62b6bf420d2b461e (ide: add
drive->dma_mode field).
Whilt at it, convert spaces to a tab in the declaration of the neighbouring
'dn' field...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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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
...
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Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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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>
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Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Reported-by: Christoph Egger <siccegge@cs.fau.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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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>
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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>
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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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>
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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>
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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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Tweak the for loops that operate on the SIC IAR system MMRs to avoid
re-reading them multiple times in a row. System MMRs are a little
slower to access, so avoid the penalty when possible.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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While the CC pseudo register can be deduced from the ASTAT register, make
sure we set its value correctly instead of always stubbing it out as 0.
GDB itself looks at this pseudo register instead of ASTAT, so we have to
supply the right value.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Rather than print just part of the accumulator register, show the whole
40 bits. This matches the simulator behavior better.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Rather than decoding just the common R/P registers, handle all of them.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Another pseudo insn used by Blackfin simulators. Also factor some now
common register lookup code out of the DBGA handlers.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The current BUG opcode includes the bit that flags the insn as a 32bit
opcode, but it wasn't declaring it as 32bits. So pick an unused 16bit.
URL: http://blackfin.uclinux.org/gf/tracker/5973
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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NMIs are not safe to return from because many anomaly workarounds are
implemented by disabling interrupts. The NMI obviously violates this
assumption. Since the NMI watchdog never returns, we don't have to
worry about it clobbering RETN when it is being used as a scratch register
with the exception stack.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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A few pseudo debug insns exist to make testing of simulators easier.
Since these don't actually exist in the hardware, we have to have the
exception handler take care of emulating these. This allows sim test
cases to be executed unmodified under Linux and thus simplify debugging
greatly.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Newer code in mm/page_alloc.c requires this function now in arches.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Decode the vast majority of insns that appear in the trace buffer to get a
better idea of what's going on at a glance.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Print out the faulting instruction so when people send traces as part of
bug reports, we have a better idea of what is going on.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Now that the split traps code has moved all the verbose output to the
trace.c file, we can unify all the CONFIG_DEBUG_VERBOSE handling. This
gets rid of much of the crappy ifdef forest and enables usage of normal
pr_xxx functions so checkpatch stops complaining.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The current kernel/traps.c file has grown a bit unwieldy as more debugging
functionality has been added over time, so split it up into more logical
files. There should be no functional changes here, just minor whitespace
tweaking. This should make future extensions easier to manage.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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This patch removes a custom GPIO wakeup API which allowed GPIOs to act
as wakeup sources, which are not configured as Interrupts.
This API is a leftover from the time before irq_wake was established.
From now on people must use enable_irq_wake(GPIO_IRQx) and the GPIO in
question needs to be configured as Interrupt.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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These boards all have the GPIO VRSEL hooked up as an active high.
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Now that there's a common header with everything unified, drop the defines
from the global namespace. Pollution sucks.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The empty_bad_page/empty_bad_page_table pages are unused, so punt them.
The zero_page is always allocated, so push it out to the bss to speed up
the booting process a bit and pack data nicer.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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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
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Pushdown the bkl to harddog_ioctl.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Uml <user-mode-linux-devel@lists.sourceforge.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
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Pushdown the bkl to cache_ioctl_pipefs.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Neil Brown <neilb@suse.de>
Cc: Nfs <linux-nfs@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
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Pushdown the bkl to rpc_pipe_ioctl.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Neil Brown <neilb@suse.de>
Cc: Nfs <linux-nfs@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
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Pushdown the bkl to autofs4_root_ioctl.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Autofs <autofs@linux.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
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Convert hostaudio_ioctl and hostmixer_ioctl_mixdev to
unlocked_ioctl without pushdown.
There is nothing to protect inside, the synchronization
is made from the host already.
Signed-off-by: John Kacur <jkacur@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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Convert ncp_ioctl to an unlocked_ioctl and push down the bkl into it.
Signed-off-by: John Kacur <jkacur@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Petr Vandrovec <vandrove@vc.cvut.cz>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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Signed-off-by: John Kacur <jkacur@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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Convert coda_pioctl to an unlocked_ioctl pushing down the BKL
into it.
Signed-off-by: John Kacur <jkacur@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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These are the last remaining device drivers using
the ->ioctl file operation in the drivers directory
(except from v4l drivers).
[fweisbec: drop i8k pushdown as it has been done from
procfs pushdown branch already]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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Push down bkl into isdn ioctl functions
[fweisbec: dropped drivers/isdn/divert/divert_procfs.c
as it has been pushed down in procfs branch already]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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Push down the bkl into ioctl functions on the scsi layer.
[jkacur: Forward declaration missing ';'.
Conflicting declaraction in megaraid.h changed
Fixed missing inodes declarations]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: John Kacur <jkacur@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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