Commit graph

22568 commits

Author SHA1 Message Date
Geert Uytterhoeven
47738a75cd m68k: Kill CONFIG_WHIPPET_SERIAL
The Hisoft Whippet PCMCIA serial driver has been removed a long time ago, but
it's Kconfig symbol still existed.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-18 13:28:48 -07:00
Jean Delvare
238a871e41 i2c: Switch pasemi to the new device/driver matching scheme
The old device/driver matching scheme is going away so stop using it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Olof Johansson <olof@lixom.net>
2008-05-18 20:49:40 +02:00
Jean Delvare
24fbacca02 i2c: Clean up Blackfin BF527 I2C device declarations
I2C_BOARD_INFO() now sets the type field so no need to set it
separatetly.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Bryan Wu <cooloney@kernel.org>
2008-05-18 20:49:40 +02:00
Marcelo Tosatti
54aaacee35 KVM: LAPIC: ignore pending timers if LVTT is disabled
Only use the APIC pending timers count to break out of HLT emulation if
the timer vector is enabled.

Certain configurations of Windows simply mask out the vector without
disabling the timer.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-05-18 14:39:39 +03:00
Xiantao Zhang
25c437b01f KVM: ia64: fix GVMM module including position-dependent objects
The GVMM module is position independent since it is relocated to the guest
address space.

Commit ea696f9cf ("ia64 kvm fixes for O=... builds") broke this by linking
GVMM with non-PIC objects.

Fix by creating two files: memset.S and memcpy.S which just include the files
under arch/ia64/lib/{memset.S, memcpy.S} respectively.

[akpm: don't delete files which we need]

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-05-18 14:34:16 +03:00
Marcelo Tosatti
eedaa4e2af KVM: PIT: take inject_pending into account when emulating hlt
Otherwise hlt emulation fails if PIT is not injecting IRQ's.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-05-18 14:34:15 +03:00
Avi Kivity
107d6d2efa KVM: x86 emulator: fix writes to registers with modrm encodings
A register destination encoded with a mod=3 encoding left dst.ptr NULL.
Normally we don't trap writes to registers, but in the case of smsw, we do.

Fix by pointing dst.ptr at the destination register.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-05-18 14:34:14 +03:00
Linus Torvalds
29e92f4836 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] pxa: spitz wants PXA27x UDC definitions
  [ARM] pxa: fix pxafb build when cpufreq is enabled
  [ARM] fix parenthesis in include/asm-arm/arch-omap/control.h
  [ARM] colibri: fix support for DM9000 ethernet device
  [ARM] arm/kernel/arthur.c: add MODULE_LICENSE
  [ARM] 5037/1: Orion: fix DNS323/Kurobox Pro PCI initialisation
  [ARM] 5034/1: fix arm{925,926,940,946} dma_flush_range() in WT mode
  [ARM] export copy_page
  [ARM] 5026/1: locomo: add .settype for gpio and several small fixes
  ARM: OMAP: Fixed comments on global PRM register usage
  ARM: OMAP: Add PARENT_CONTROLS_CLOCK flag to dpll5_m2_ck
  ARM: OMAP: PRCM fixes to ssi clock handling
  ARM: OMAP: Add fuctional clock enabler for iva2
  ARM: OMAP: Fix 34xx to use correct shift values for gpio2-6 fclks
  ARM: OMAP: Keymap fix for palmte and palmz71
  ARM: OMAP: Fix Unbalanced enable for IRQ in omap mailbox
  ARM: OMAP: DMA: Fix incorrect channel linking
  ARM: OMAP: Warn on disabling clocks with no users
  ARM: OMAP: Add calls to omap2_set_globals_*()
  ARM: OMAP: Update MMC header to fix compile
2008-05-17 15:17:10 -07:00
Russell King
dfb0ae0914 Merge branch 'omap-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2008-05-17 22:56:29 +01:00
Russell King
1da7807842 Merge branch 'sa1100' 2008-05-17 22:55:51 +01:00
Russell King
53491e042e [ARM] pxa: spitz wants PXA27x UDC definitions
... so include the header file.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-05-17 22:55:42 +01:00
Michael Abbott
d0afc85f15 [ARM] colibri: fix support for DM9000 ethernet device
Two changes are necessary to enable proper operation of the DM9000 device with
the Colibri PXA 270 board: firstly, the IRQ type needs to be configured for
rising edge interrupts, and secondly this configuration needs to be
communicated through to the DM9000.

[akpm@linux-foundation.org: remove set_irq_type() call as per ben-linux request]
Signed-off-by: Michael Abbott <michael.abbott@diamond.ac.uk>
Cc: Daniel Mack <daniel@caiaq.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-05-17 22:55:17 +01:00
Adrian Bunk
7cc09c248f [ARM] arm/kernel/arthur.c: add MODULE_LICENSE
This patch adds the missing MODULE_LICENSE("GPL").

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-05-17 22:55:16 +01:00
Lennert Buytenhek
bbdf1c1e58 [ARM] 5037/1: Orion: fix DNS323/Kurobox Pro PCI initialisation
Whereas most Orion 5x machine support code would initialise the PCI
subsystem with nr_controllers in their struct hw_pci set to 2, the
DNS323 and Kurobox Pro machine support code had nr_controllers set
to 1.

This was presumably done because on those two machines, the PCI(-X)
controller (nr == 1) isn't used, requiring initialisation of only
the PCIe controller (nr == 0.)  However, not initialising the PCI(-X)
controller on boards that don't use it leads to a situation where
both the PCIe and the PCI(-X) controller think that their root bus is
zero, and it messes up IRQ assignment.

This patch changes the DNS323 and Kurobox Pro support code to always
use nr_controllers == 2.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-05-17 22:55:15 +01:00
Lennert Buytenhek
b3a8b751c1 [ARM] 5034/1: fix arm{925,926,940,946} dma_flush_range() in WT mode
The CPU's dma_flush_range() operation needs to clean+invalidate the
given memory area if the cache is in writeback mode, or do just the
invalidate part if the cache is in writethrough mode, but the current
proc-arm{925,926,940,946} (incorrectly) do a cache clean in the
latter case.  This patch fixes that.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-05-17 22:55:14 +01:00
Russell King
db2c439290 [ARM] export copy_page
Martin Michlmayr reported that fuse complains:
  ERROR: "copy_page" [fs/fuse/fuse.ko] undefined!

so export the needed function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-05-17 22:55:12 +01:00
Thomas Kunze
2a52efb2ce [ARM] 5026/1: locomo: add .settype for gpio and several small fixes
irqs.h:
    * rename IRQ_LOCOMO_SPI_OVRN to IRQ_LOCOMO_SPI_REND
locomo.h:
    * add some definition for locomo spi controller
    * correct some errors
locomo.c:
    * correct some errors
    * add set_type for locomo gpio irq chip

Signed-off-by: Thomas Kunze <thommycheck@gmx.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-05-17 22:53:54 +01:00
Linus Torvalds
08c18964a2 Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: disable mwait for AMD family 10H/11H CPUs
  x86: fix crash on cpu hotplug on pat-incapable machines
  x86: remove mwait capability C-state check
2008-05-17 14:21:43 -07:00
Thomas Gleixner
e9623b3559 x86: disable mwait for AMD family 10H/11H CPUs
The previous revert of 0c07ee38c9 left
out the mwait disable condition for AMD family 10H/11H CPUs.

Andreas Herrman said:

It depends on the CPU. For AMD CPUs that support MWAIT this is wrong.
Family 0x10 and 0x11 CPUs will enter C1 on HLT. Powersavings then
depend on a clock divisor and current Pstate of the core.

If all cores of a processor are in halt state (C1) the processor can
enter the C1E (C1 enhanced) state. If mwait is used this will never
happen.

Thus HLT saves more power than MWAIT here.

It might be best to switch off the mwait flag for these AMD CPU
families like it was introduced with commit
f039b75471 (x86: Don't use MWAIT on AMD
Family 10)

Re-add the AMD families 10H/11H check and disable the mwait usage for
those.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-17 22:57:20 +02:00
Avi Kivity
31f4d870b0 x86: fix crash on cpu hotplug on pat-incapable machines
pat_disable() is __init, which means it goes away after booting is complete.
Unfortunately it is used by the hotplug code if the machine is not
pat-capable, causing a crash.

Fix by marking pat_disable() as __cpuinit.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-17 22:57:20 +02:00
Ingo Molnar
a738d897b7 x86: remove mwait capability C-state check
Vegard Nossum reports:

| powertop shows between 200-400 wakeups/second with the description
| "<kernel IPI>: Rescheduling interrupts" when all processors have load (e.g.
| I need to run two busy-loops on my 2-CPU system for this to show up).
|
| The bisect resulted in this commit:
|
| commit 0c07ee38c9
| Date:   Wed Jan 30 13:33:16 2008 +0100
|
|     x86: use the correct cpuid method to detect MWAIT support for C states

remove the functional effects of this patch and make mwait unconditional.

A future patch will turn off mwait on specific CPUs where that causes
power to be wasted.

Bisected-by: Vegard Nossum <vegard.nossum@gmail.com>
Tested-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-17 22:57:20 +02:00
Michael Hennerich
ecb9567e28 Blackfin arch: update boards defconfig files
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-19 14:56:33 +08:00
Michael Hennerich
5906967638 Blackfin arch: IO Port functions to read/write unalligned memory
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-17 16:38:52 +08:00
Cliff Cai
86ad79321c Blackfin arch: enable a choice to provide 4M DMA memory
support two cascaded AD73322 cards, more uncached DMA
memory is needed, so add a choice to provide 4M DMA memory

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-17 16:36:52 +08:00
Mike Frysinger
c6c6f75d54 Blackfin arch: cleanup the icplb/dcplb multiple hit checks
so that we always send the same signal and we handle the NULL ptr condition properly

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-17 16:18:08 +08:00
Michael Hennerich
803a8d2acb Blackfin arch: Add workaround to read edge triggered GPIOs
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-17 16:01:51 +08:00
Michael Hennerich
5ce998cf6d Blackfin arch: Check for Anomaly 05000182
IMDMA does not operate to full speed for 600MHz and higher devices

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-17 15:57:01 +08:00
Al Viro
f52111b154 [PATCH] take init_files to fs/file.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-05-16 17:22:20 -04:00
David S. Miller
109d1c88e9 sparc64: Update defconfig.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-16 13:36:27 -07:00
David S. Miller
7047901ec7 sparc64: Fix lmb_reserve() args in find_ramdisk().
This fixes the missing ram regression reported by
Mikael Pettersson <mikpe@it.uu.se>, much thanks for
all of this help in diagnosing this.

The second argument to lmb_reserve() is a size,
not an end address bounds.

Tested-by: Mikael Pettersson <mikpe@it.uu.se>

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-16 13:34:35 -07:00
Harvey Harrison
bfd3c7a728 sh: use the common ascii hex helpers
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-16 15:09:08 +09:00
Yoshihiro Shimoda
65b83427c6 sh: fix sh7785 master clock value
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-16 14:55:07 +09:00
Hideo Saito
561c2bccc7 sh: Fix up thread info pointer in syscall_badsys resume path.
Entry to resume_userspace expects r8 to contain current_thread_info,
which happens in all paths except for syscall_badsys, where r8 was
being inadvertently trampled. Reload it before the branch.

Signed-off-by: Hideo Saito <saito@densan.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-16 14:55:07 +09:00
Hideo Saito
e08b954c9a sh: Fix up optimized SH-4 memcpy on big endian.
Signed-off-by: Hideo Saito <saito@densan.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-16 14:55:07 +09:00
Paul Mundt
972ad0e0d5 sh: disable initrd defaults in .empty_zero_page.
When using initramfs on systems that don't explicitly clear LOADER_TYPE,
unpack_to_rootfs() tramples tramples the range with the defaults taken
out of .empty_zero_page. This causes kernels with valid initramfs images
to bail out with crc or gzip magic mismatch errors after the second
unpack takes place on certain platform configurations.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-16 14:55:07 +09:00
Paul Mundt
0105346cc7 sh: display boot params by default on entry.
Some kernel and boot loader configurations tweak the .empty_zero_page
settings, while others do not. Print the values out on entry as a
debugging aid.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-16 14:55:06 +09:00
Linus Torvalds
f26a398891 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] macintosh: Replace deprecated __initcall with device_initcall
  [POWERPC] cell: Fix section mismatches in io-workarounds code
  [POWERPC] spufs: Fix compile error
  [POWERPC] Fix uninitialized variable bug in copy_{to|from}_user
  [POWERPC] Add null pointer check to of_find_property
  [POWERPC] vmemmap fixes to use smaller pages
  [POWERPC] spufs: Fix pointer reference in find_victim
  [POWERPC] 85xx: SBC8548 - Add flash support and HW Rev reporting
  [POWERPC] 85xx: Fix some sparse warnings for 85xx MDS
  [POWERPC] 83xx: Enable DMA engine on the MPC8377 MDS board.
  [POWERPC] 86xx: mpc8610_hpcd: fix second serial port
  [POWERPC] 86xx: mpc8610_hpcd: add support for NOR and NAND flashes
  [POWERPC] 85xx: Add 8568 PHY workarounds to board code
  [POWERPC] 86xx: mpc8610_hpcd: use ULI526X driver for on-board ethernet
2008-05-15 18:28:46 -07:00
Linus Torvalds
7371fd11a6 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] fix personality(PER_LINUX32) performance issue
  [IA64] Properly unregister legacy interrupts
  [IA64] Remove NULL pointer check for argument never passed as NULL.
  [IA64] trivial cleanup for perfmon.c
  [IA64] trivial cleanup for entry.S
  [IA64] fix interrupt masking for pending works on kernel leave
  [IA64] allow user to force_pal_cache_flush
  [IA64] Don't reserve crashkernel memory > 4 GB
  [IA64] machvec support for SGI UV platform
  [IA64] Add header files for SGI UV platform
2008-05-15 13:56:42 -07:00
Huang, Xiaolan
839052d27e [IA64] fix personality(PER_LINUX32) performance issue
The patch aims to fix a performance issue for the syscall
personality(PER_LINUX32).

On IA-64 box, the syscall personality (PER_LINUX32) has poor performance
because it failed to find the Linux/x86 execution domain. Then it tried
to load the kernel module however it failed always and it used the default
execution domain PER_LINUX instead. Requesting kernel modules is very
expensive. It caused the performance issue. (see the function
lookup_exec_domain in kernel/exec_domain.c).

To resolve the issue, execution domain Linux/x86 is always registered in
initialization time for IA-64 architecture.

Signed-off-by: Xiaolan Huang <xiaolan.huang@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-05-15 09:54:19 -07:00
Linus Torvalds
8568dae21e Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] show_interrupts: prevent cpu hotplug when walking cpu_online_map.
  [S390] smp: __smp_call_function_map vs cpu_online_map fix.
  [S390] tape: Use ccw_dev_id to build cdev_id.
  [S390] dasd: fix timeout handling in interrupt handler
  [S390] s390dbf: Use const char * for dbf name.
  [S390] dasd: Use const in busid functions.
  [S390] blacklist.c: removed duplicated include
  [S390] vmlogrdr: module initialization function should return negative errors
  [S390] sparsemem vmemmap: initialize memmap.
  [S390] Remove last traces of cio_msg=.
  [S390] cio: Remove CCW_CMD_SUSPEND_RECONN in front of CCW_CMD_SET_PGID.
2008-05-15 09:10:13 -07:00
Linus Torvalds
713c0515a5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
  arch/parisc/kernel/perf_asm.S: build fix
  parisc: remove -traditional from assembler flags
  parisc: use conditional macro for 64-bit wide ops
  parisc: Remove ioctl.h content picked up from <asm-generic/ioctl.h>.
  arch/parisc/kernel/unaligned.c: use time_* macros
  parisc: remove redundant display of free swap space in show_mem()
  drivers/parisc: replace remaining __FUNCTION__ occurrences
  parisc: replace remaining __FUNCTION__ occurrences
  parisc: new termios definitions
  parisc: fix trivial section name warnings
2008-05-15 09:09:43 -07:00
Kyle McMartin
c913f94d86 arch/parisc/kernel/perf_asm.S: build fix
Missing <linux/init.h> header for __HEAD macro.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-05-15 11:03:46 -04:00
Kyle McMartin
3378f7ec6c parisc: remove -traditional from assembler flags
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-05-15 11:03:45 -04:00
Kyle McMartin
872f6debca parisc: use conditional macro for 64-bit wide ops
This work enables us to remove -traditional from $AFLAGS on
parisc.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-05-15 11:03:43 -04:00
Heiko Carstens
8dd79cb105 [S390] show_interrupts: prevent cpu hotplug when walking cpu_online_map.
Surround all the code withing show_interrupts() with
get/put_online_cpus() to prevent strange results wrt cpu hotplug.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-05-15 16:52:41 +02:00
Heiko Carstens
85cb185dad [S390] smp: __smp_call_function_map vs cpu_online_map fix.
Both smp_call_function() and __smp_call_function_map() access
cpu_online_map. Both functions run with preemption disabled which
protects for cpus going offline. However new cpus can be added and
therefore the cpu_online_map can change unexpectedly.
So use the call_lock to protect against changes to the cpu_online_map
in start_secondary() and all smp_call_* functions.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-05-15 16:52:40 +02:00
Cornelia Huck
5cbbf16a0f [S390] s390dbf: Use const char * for dbf name.
We should use const char * for passing the name of the debug feature
around since it will not be changed.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-05-15 16:52:39 +02:00
Heiko Carstens
2069e978d5 [S390] sparsemem vmemmap: initialize memmap.
Let's just use the generic vmmemmap_alloc_block() function which
always returns initialized memory.

Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-05-15 16:52:38 +02:00
S.Caglar Onur
e557d2775a arch/parisc/kernel/unaligned.c: use time_* macros
The functions time_before, time_before_eq, time_after, and time_after_eq are
more robust for comparing jiffies against other values.

So use the time_after() macro, defined in linux/jiffies.h, which deals with
wrapping correctl

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: S.Caglar Onur <caglar@pardus.org.tr>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-05-15 10:38:54 -04:00
Johannes Weiner
b64af9b54c parisc: remove redundant display of free swap space in show_mem()
show_mem() has no need to print the amount of free swap space manually because
show_free_areas() does this already and is called by the former.

The two outputs only differ in text formatting:

  printk("Free swap  = %lukB\n", ...);
  printk("Free swap:       %6ldkB\n", ...);

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-05-15 10:38:54 -04:00
Harvey Harrison
91bae23ce1 parisc: replace remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-05-15 10:38:54 -04:00
Helge Deller
bd3bb8c15b parisc: fix trivial section name warnings
This trivial patch fixes the following section warnings on PARISC:
> WARNING: vmlinux.o (.text.1): unexpected section name.
>The (.[number]+) following section name are ld generated and not expected.
> Did you forget to use "ax"/"aw" in a .S file?
> Note that for example <linux/init.h> contains
> section definitions for use in .S files.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-05-15 10:38:54 -04:00
Ishizaki Kou
7012255aae [POWERPC] cell: Fix section mismatches in io-workarounds code
Fix following warnings:
WARNING: arch/powerpc/platforms/cell/built-in.o(.devinit.text+0x9c): Section mismatch in reference from the function .cell_setup_phb() to the function .init.text:.iowa_register_bus()
WARNING: arch/powerpc/platforms/cell/built-in.o(.devinit.text+0xa4): Section mismatch in reference from the function .cell_setup_phb() to the function .init.text:.io_workaround_init()

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-15 20:49:57 +10:00
FUJITA Tomonori
dfe1e09f22 [POWERPC] spufs: Fix compile error
With CONFIG_VIRT_CPU_ACCOUNTING disabled, I got the following error:

linux-2.6/arch/powerpc/platforms/cell/spufs/file.c: In function 'spu_switch_log_notify':
linux-2.6/arch/powerpc/platforms/cell/spufs/file.c:2542: error: implicit declaration of function 'get_tb'
make[4]: *** [arch/powerpc/platforms/cell/spufs/file.o] Error 1

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-15 20:49:55 +10:00
Benjamin Herrenschmidt
cec08e7a94 [POWERPC] vmemmap fixes to use smaller pages
This changes vmemmap to use a different region (region 0xf) of the
address space, and to configure the page size of that region
dynamically at boot.

The problem with the current approach of always using 16M pages is that
it's not well suited to machines that have small amounts of memory such
as small partitions on pseries, or PS3's.

In fact, on the PS3, failure to allocate the 16M page backing vmmemmap
tends to prevent hotplugging the HV's "additional" memory, thus limiting
the available memory even more, from my experience down to something
like 80M total, which makes it really not very useable.

The logic used by my match to choose the vmemmap page size is:

 - If 16M pages are available and there's 1G or more RAM at boot,
   use that size.
 - Else if 64K pages are available, use that
 - Else use 4K pages

I've tested on a POWER6 (16M pages) and on an iSeries POWER3 (4K pages)
and it seems to work fine.

Note that I intend to change the way we organize the kernel regions &
SLBs so the actual region will change from 0xf back to something else at
one point, as I simplify the SLB miss handler, but that will be for a
later patch.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-15 20:49:25 +10:00
Luke Browning
08fcf1d611 [POWERPC] spufs: Fix pointer reference in find_victim
If victim (not ctx) is in spu_run, add victim to rq.

Signed-off-by: Luke Browning <lukebrowning@us.ibm.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-15 20:47:17 +10:00
Linus Torvalds
8978a31883 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Use a TS_RESTORE_SIGMASK
  lmb: Make lmb debugging more useful.
  lmb: Fix inconsistent alignment of size argument.
  sparc: Fix mremap address range validation.
2008-05-14 19:11:36 -07:00
Harvey Harrison
3fc957721d lib: create common ascii hex array
Add a common hex array in hexdump.c so everyone can use it.

Add a common hi/lo helper to avoid the shifting masking that is
done to get the upper and lower nibbles of a byte value.

Pull the pack_hex_byte helper from kgdb as it is opencoded many
places in the tree that will be consolidated.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-14 19:11:14 -07:00
Nicolas Ferre
90898709df atmel_lcdfb: fix initialization of a pre-allocated framebuffer
Fix initialization of framebuffer not calling ioremap_writecombine() function
and not using internal SRAM for at91sam9rl.

This is a little rework of the "Don't initialize a pre-allocated framebuffer"
patch that corrects the call to ioremap_writecombine() function.

It also cuts the use of internal SRAM for at91sam9rl : it is a bit small
for a framebuffer.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-14 19:11:13 -07:00
Prarit Bhargava
3fb2c74ee2 [IA64] Properly unregister legacy interrupts
acpi_unregister_gsi() should "undo" what acpi_register_gsi() does.

On systems that have legacy interrupts, acpi_unregister_gsi erroneously calls
iosapci_unregister_intr() which is wrong to do and causes a loud warning.

acpi_unregister_gsi() should just return in these cases.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-05-14 16:00:14 -07:00
Simon Holm Thøgersen
7af1d7532b [IA64] Remove NULL pointer check for argument never passed as NULL.
There is only palinfo_handle_smp as (indirect) user of palinfo_smp_call (by
way of smp_call_function_single) and surely palinfo_handle_smp never pass
NULL as parameter for info.

Signed-off-by: Simon Holm Thøgersen <odie@cs.aau.dk>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-05-14 15:58:27 -07:00
Hidetoshi Seto
0fb232fdb2 [IA64] trivial cleanup for perfmon.c
Fix a typo, and coding style cleanups for pfm_handle_work().

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-05-14 15:56:34 -07:00
Hidetoshi Seto
2e513fe490 [IA64] trivial cleanup for entry.S
This patch does:
 - make comment at next to resched check more robust
 - move "re-check" comments to next to where change predicate regs

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-05-14 15:56:09 -07:00
Hidetoshi Seto
3633c73080 [IA64] fix interrupt masking for pending works on kernel leave
[Bug-fix for "[BUG?][2.6.25-mm1] sleeping during IRQ disabled"]

This patch does:
 - enable interrupts before calling schedule() as same as others, ex. x86
 - enable interrupts during ia64_do_signal() and ia64_sync_krbs()
 - do_notify_resume_user() is still called with interrupts disabled, since
   we can take short path of fsys_mode if-statement quickly.
 - pfm_handle_work() is also called with interrupts disabled, since
   it can deal interrupt mask within itself.
 - fix/add some comments/notes

Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-05-14 15:55:35 -07:00
Alex Chiang
f13ae30e13 [IA64] allow user to force_pal_cache_flush
The sequence executed in check_sal_cache_flush:

	- pend a timer interrupt
	- call SAL_CACHE_FLUSH
	- see if interrupt is still pending

can hang HP machines with buggy SAL_CACHE_FLUSH implementations.

Provide a kernel command-line argument to allow users skip this
check if desired. Using this parameter will force ia64_sal_cache_flush
to call ia64_pal_cache_flush() instead of SAL_CACHE_FLUSH.

Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-05-14 15:42:07 -07:00
Bernhard Walle
8a3360f06c [IA64] Don't reserve crashkernel memory > 4 GB
Some IA64 machines map all cell-local memory above 4 GB (32 bit limit).
However, in most cases, the kernel needs some memory below that limit that is
DMA-capable. So in this machine configuration, the crashkernel will be reserved
above 4 GB.

For machines that use SWIOTLB implementation because they lack an I/O MMU
the low memory is required by the SWIOTLB implementation. In that case,
it doesn't make sense to reserve the crashkernel at all because it's unusable
for kdump.

A special case is the "hpzx1" machine vector. In theory, it has a I/O MMU, so
it can be booted above 4 GB. However, in the kdump case that is not possible
because of changeset 51b58e3e26:

    On HP zx1 machines, the 'machvec=dig' parameter is needed for the kdump
    kernel to avoid problems with the HP sba iommu.  The problem is that during
    the boot of the kdump kernel, the iommu is re-initialized, so in-flight DMA
    from improperly shutdown drivers causes an IOTLB miss which leads to an
    MCA.  With kdump, the idea is to get into the kdump kernel with as little
    code as we can, so shutting down drivers properly is not an option.

    The workaround is to add 'machvec=dig' to the kdump kernel boot parameters.
    This makes the kdump kernel avoid using the sba iommu altogether, leaving
    the IOTLB intact.  Any ongoing DMA falls harmlessly outside the kdump
    kernel.  After the kdump kernel reboots, all devices will have been
    shutdown properly and DMA stopped.

This patch pushes that functionality into the sba iommu initialization
code, so that users won't have to find the obscure documentation telling
them about 'machvec=dig'.

This means that also for hpzx1 it's not possible to boot when all
memory is above the 4 GB limit. So the only machine vectors that can handle
this case are "sn2" and "uv".

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-05-14 15:40:40 -07:00
Jack Steiner
2224661494 [IA64] machvec support for SGI UV platform
This patch adds the basic IA64 machvec infrastructure to support
the SGI "UV" platform.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-05-14 14:22:04 -07:00
Linus Torvalds
4ef7e3e90f Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: user_regset_view table fix for ia32 on 64-bit
  x86: arch/x86/mm/pat.c - fix warning
  x86: fix csum_partial() export
  x86: early_init_centaur(): use set_cpu_cap()
  x86: fix app crashes after SMP resume
  x86: wakeup.lds.S - section ordering fix
  x86: [VOYAGER] fix duplicate phys_cpu_present_map symbol
  x86/pci: fix broken ISA DMA
2008-05-13 12:33:56 -07:00
Linus Torvalds
25c55d9720 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  ACPI/PCI: another multiple _OSC memory leak fix
  x86/PCI: X86_PAT & mprotect
  PCI: enable nv_msi_ht_cap_quirk for ALi bridges
  PCI: Make the intel-iommu_wait_op macro work when jiffies are not running
  ACPI/PCI: handle multiple _OSC
  ACPI/PCI: handle multiple _OSC
  x86/PCI: fix broken ISA DMA
  PCI ACPI: fix uninitialized variable in __pci_osc_support_set
2008-05-13 10:48:35 -07:00
Roland McGrath
1f465f4e47 x86: user_regset_view table fix for ia32 on 64-bit
The user_regset_view table for the 32-bit regsets on the 64-bit build had
the wrong sizes for the FP regsets.  This bug had no user-visible effect
(just on kernel modules using the user_regset interfaces and the like).
But the fix is trivial and risk-free.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-13 19:40:20 +02:00
Pranith Kumar
afc8534380 x86: arch/x86/mm/pat.c - fix warning
fix this warning:

 arch/x86/mm/pat.c: In function `phys_mem_access_prot_allowed':
 arch/x86/mm/pat.c:558: warning: long long unsigned int format, long
 unsigned int arg (arg 6)
 arch/x86/mm/pat.c: In function `map_devmem':
 arch/x86/mm/pat.c:580: warning: long long unsigned int format, long
 unsigned int arg (arg 6)

Signed-off-by: D Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-13 19:39:30 +02:00
Ingo Molnar
89804c022f x86: fix csum_partial() export
Fix this symbol export problem:

    Building modules, stage 2.
    MODPOST 193 modules
    ERROR: "csum_partial" [fs/reiserfs/reiserfs.ko] undefined!
    make[1]: *** [__modpost] Error 1
    make: *** [modules] Error 2

This is due to a known weakness of symbol exports: if a symbol's
only in-core user is an EXPORT_SYMBOL from a lib-y section, the
symbol is not linked in.

The solution is to move the export to x8664_ksyms_64.c - but the real
solution would be to fix kbuild.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-13 19:38:47 +02:00
Andrew Morton
8c45a4e4f2 x86: early_init_centaur(): use set_cpu_cap()
arch/x86/kernel/setup_64.c:954: warning: passing argument 2 of 'set_bit' from incompatible pointer type

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-13 19:37:38 +02:00
Hugh Dickins
61165d7a03 x86: fix app crashes after SMP resume
After resume on a 2cpu laptop, kernel builds collapse with a sed hang,
sh or make segfault (often on 20295564), real-time signal to cc1 etc.

Several hurdles to jump, but a manually-assisted bisect led to -rc1's
d2bcbad5f3 x86: do not zap_low_mappings
in __smp_prepare_cpus.  Though the low mappings were removed at bootup,
they were left behind (with Global flags helping to keep them in TLB)
after resume or cpu online, causing the crashes seen.

Reinstate zap_low_mappings (with local __flush_tlb_all) for each cpu_up
on x86_32.  This used to be serialized by smp_commenced_mask: that's now
gone, but a low_mappings flag will do.  No need for native_smp_cpus_done
to repeat the zap: let mem_init zap BSP's low mappings just like on UP.

(In passing, fix error code from native_cpu_up: do_boot_cpu returns a
variety of diagnostic values, Dprintk what it says but convert to -EIO.
And save_pg_dir separately before zap_low_mappings: doesn't matter now,
but zapping twice in succession wiped out resume's swsusp_pg_dir.)

That worked well on the duo and one quad, but wouldn't boot 3rd or 4th
cpu on P4 Xeon, oopsing just after unlock_ipi_call_lock.  The TLB flush
IPI now being sent reveals a long-standing bug: the booting cpu has its
APIC readied in smp_callin at the top of start_secondary, but isn't put
into the cpu_online_map until just before that unlock_ipi_call_lock.

So native_smp_call_function_mask to online cpus would send_IPI_allbutself,
including the cpu just coming up, though it has been excluded from the
count to wait for: by the time it handles the IPI, the call data on
native_smp_call_function_mask's stack may well have been overwritten.

So fall back to send_IPI_mask while cpu_online_map does not match
cpu_callout_map: perhaps there's a better APICological fix to be
made at the start_secondary end, but I wouldn't know that.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-13 19:36:12 +02:00
Venki Pallipadi
77db988564 x86/PCI: X86_PAT & mprotect
Some versions of X used the mprotect workaround to change caching type from UC
to WB, so that it can then use mtrr to program WC for that region [1].  Change
the mmap of pci space through /sys or /proc interfaces from UC to UC_MINUS.
With this change, X will not need to use mprotect workaround to get WC type
since the MTRR mapping type will be honored.

The bug in mprotect that clobbers PAT bits is fixed in a follow on patch. So,
this X workaround will stop working as well.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-05-13 09:51:54 -07:00
Takashi Iwai
4a367f3a9d x86/PCI: fix broken ISA DMA
Rene Herman reported:

> commit 8779f2fc3b
>
> "x86: don't try to allocate from DMA zone at first"
>
> breaks all of ISA DMA. Or all of ALSA ISA DMA at least. All
> ISA soundcards are silent following that commit -- no error
> messages, everything appears fine, just silence.

That patch is buggy. We had an implicit assumption that
dev = NULL for ISA devices that require 24bit DMA.

The recent work on x86 dma_alloc_coherent() breaks the ISA DMA buffer
allocation, which is represented by "dev = NULL" and requires 24bit
DMA implicitly.

Bisected-by: Rene Herman <rene.herman@keyaccess.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-05-13 09:51:53 -07:00
Greg Ungerer
f38c843127 m68knommu: missing sections for linker script
Include the missing kcrctab and kcrctab_unused sections into the m68knommu
linker script.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:25 -07:00
Mel Gorman
4413a0f637 parisc: fix DISCONTIGMEM compile breakage
PA-RISC to aid debugging prints out the zonelists setup by the system.  A
bad call to node_zonelist() breaks at compile-time.  This patch fixes it.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:24 -07:00
Robert P. J. Day
460817b9d4 mn10300: replace deprecated "TOPDIR" with newer "srctree"
This would appear to be the last reference to TOPDIR in the entire tree, after
which i'm guessing that variable can be dropped.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Acked-by: David Howells <dhowells@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:24 -07:00
Sebastian Siewior
78f508ab07 m68knommu: ColdFire add support for kernel preemption (missing chunk)
As the subject says this patch adds the support for kernel preemption on
m68knommu Coldfire.  I thing the same changes could be applied to 68360 &
68328 but since I don't have the HW, I don't touch it.  Kconfig enables the
preemption item only on coldfire.

This is a missing chunk from Sebastian's original patch that I lost from the
first submission.

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:23 -07:00
Jeff Dike
fe2cc53ee0 uml: track and make up lost ticks
Alarm delivery could be noticably late in the !CONFIG_NOHZ case because lost
ticks weren't being taken into account.  This is now treated more carefully,
with the time between ticks being calculated and the appropriate number of
ticks delivered to the timekeeping system.

Cc: Nix <nix@esperi.org.uk>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:22 -07:00
Jeff Dike
3d88958e01 uml: style fixes in the random driver
Give random.c a style workover while I'm changing it.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:22 -07:00
Jeff Dike
5d33e4d7fd uml: random driver fixes
The random driver would essentially hang if the host's /dev/random returned
-EAGAIN.  There was a test of need_resched followed by a schedule inside the
loop, but that didn't help and it's the wrong way to work anyway.

The right way is to ask for an interrupt when there is input available from
the host and handle it then rather than polling.

Now, when the host's /dev/random returns -EAGAIN, the driver asks for a wakeup
when there's randomness available again and sleeps.  The interrupt routine
just wakes up whatever processes are sleeping on host_read_wait.

There is an atomic_t, host_sleep_count, which counts the number of processes
waiting for randomness.  When this reaches zero, the interrupt is disabled.

An added complication is that async I/O notification was only recently added
to /dev/random (by me), so essentially all hosts will lack it.  So, we use the
sigio workaround here, which is to have a separate thread poll on the
descriptor and send an interrupt when there is input on it.  This mechanism is
activated when a process gets -EAGAIN (activating this multiple times is
harmless, if a bit wasteful) and deactivated by the last process still
waiting.

The module name was changed from "random" to "hw_random" in order for udev to
recognize it.

The sigio workaround needed some changes.  sigio_broken was added for cases
when we know that async notification doesn't work.  This is now called from
maybe_sigio_broken, which deals with pts devices.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:22 -07:00
Jeff Dike
60a2988aea uml: physical memory shouldn't include initial stack
The top of physical memory should be below the initial process stack, not the
top of the address space, at least for as long as the stack isn't known to the
kernel VM system and appropriately reserved.

Cc: "Christopher S. Aker" <caker@theshore.net>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:22 -07:00
Cyrill Gorcunov
a7dfa9403b uml: use PAGE_SIZE in linker scripts
This patch includes page.h header into linker scripts that allow us to
use PAGE_SIZE macro instead of numeric constant.

To be able to include page.h into linker scripts page.h is needed for
some modification - i.e.  we need to use __ASSEMBLY__ and _AC macro

[jdike@linux.intel.com - fixed conflict with as-layout.h]
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:22 -07:00
Jiri Olsa
6d0742426c uml: use DIV_ROUND_UP
I just saw similar patches in the janitor kernel's list, and spotted place it
fits.

Signed-off-by: Jiri Olsa <olsajiri@gmail.com>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:22 -07:00
Robert P. J. Day
63b9871f6e uml: fix CONFIG_RAW dependencies
Add the BLOCK dependency for RAW_DRIVER, to match what's in
drivers/char/Kconfig.  Also, while we're there, update the alleged
obsolesence of RAW_DRIVER since it doesn't seem to be going away any
time soon.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:22 -07:00
Jeff Dike
5563d722bf uml: use __SPIN_LOCK_UNLOCKED
From: Robert P. J. Day <rpjday@crashcourse.ca>

Use newer, non-deprecated __SPIN_LOCK_UNLOCKED macro.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:22 -07:00
Jeff Dike
cfd28f6695 uml: fix bad NTP interaction with clock
UML's supposed nanosecond clock interacts badly with NTP when NTP
decides that the clock has drifted ahead and needs to be slowed down.
Slowing down the clock is done by decrementing the cycle-to-nanosecond
multiplier, which is 1.  Decrementing that gives you 0 and time is
stopped.

This is fixed by switching to a microsecond clock, with a multiplier
of 1000.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:22 -07:00
Jeff Dike
43f5b3085f uml: fix build when SLOB is enabled
Reintroduce uml_kmalloc for the benefit of UML libc code.  The
previous tactic of declaring __kmalloc so it could be called directly
from the libc side of the house turned out to be getting too intimate
with slab, and it doesn't work with slob.

So, the uml_kmalloc wrapper is back.  It calls kmalloc or whatever
that translates into, and libc code calls it.

kfree is left alone since that still works, leaving a somewhat
inconsistent API.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:22 -07:00
Johann Felix Soden
484f1e2c1e uml: fix errno return
Error returns are negative.

Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:21 -07:00
Jeff Dike
47906dd9e6 uml: tidy ptrace interface
Tidy the ptrace interface code.  Removed a bunch of unused macros.
Started converting register sets from arrays of longs to structures.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:21 -07:00
Jeff Dike
96cee3044d uml: style fixes
A few random style fixes.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:21 -07:00
Jeff Dike
53c2587874 uml: redo host capability detection and disabling
Redo how host capabilities are recorded at startup and disabled on the
command line.

There are now explicit variables saying what's been disabled by the
command line rather than the implicitness of the have_* variable being
zero.  The capability variables now start at zero and are set to one
as their capabilities are found to be present on the host.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13 08:02:21 -07:00
Jeremy McNicoll
bfd123bf91 [POWERPC] 85xx: SBC8548 - Add flash support and HW Rev reporting
The following adds local bus, flash and MTD partition nodes for
sbc8548. As well, a compatible field for the soc node, so that
of_platform_bus_probe() will pick it up.

Something that is provided through this newly added epld node
is the Hardware Revision which is now being utilized.

Signed-off-by: Jeremy McNicoll <jeremy.mcnicoll@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-13 08:53:48 -05:00
Andy Fleming
73f5b8f942 [POWERPC] 85xx: Fix some sparse warnings for 85xx MDS
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-13 08:53:48 -05:00
Zhang Wei
3f346935f4 [POWERPC] 83xx: Enable DMA engine on the MPC8377 MDS board.
Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Cc: "Nelson, Shannon" <shannon.nelson@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-13 08:53:48 -05:00
Anton Vorontsov
f637ef8ea0 [POWERPC] 86xx: mpc8610_hpcd: fix second serial port
DIU platform code should not just write to the PIXIS' BRDCFG0 register,
it should set and clear its own bits only, otherwise it will break
firmware setup (in fact it breaks second uart).

Also get rid of magic numbers in the related code.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-13 08:53:48 -05:00
Anton Vorontsov
34b4a8731f [POWERPC] 86xx: mpc8610_hpcd: add support for NOR and NAND flashes
This patch adds device tree nodes for NOR and NAND flashes and places
board-control node inside the localbus.

defconfig and board file updated appropriately.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-13 08:53:48 -05:00
Andy Fleming
94833a4276 [POWERPC] 85xx: Add 8568 PHY workarounds to board code
The 8568 MDS needs some configuration changes to the PHY in order to
work properly.  These are done in the firmware, normally, but Linux
shouldn't need to rely on the firmware running such things (someone
could disable the PHY support in the firmware to save space, for instance).

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-13 08:53:48 -05:00
Anton Vorontsov
ad12e34fe8 [POWERPC] 86xx: mpc8610_hpcd: use ULI526X driver for on-board ethernet
As of current mainline tree, TULIP driver is unusable on MPC8610HPCD
boards. There is a patch[1] floating around (and also included in the
BSP), which tries to heal the situation, though the ethernet is still
unusable. Practically it takes ages to mount NFS filesystem:

VFS: Mounted root (nfs filesystem).
Freeing unused kernel memory: 180k init
nfs: server 10.0.0.2 not responding, still trying
nfs: server 10.0.0.2 OK
nfs: server 10.0.0.2 not responding, still trying
nfs: server 10.0.0.2 not responding, still trying
nfs: server 10.0.0.2 not responding, still trying
nfs: server 10.0.0.2 not responding, still trying
nfs: server 10.0.0.2 OK
nfs: server 10.0.0.2 not responding, still trying

So, instead of trying to add uli526x functionality into TULIP driver
(which is already bloated enough), I fixed existing ULI526X driver
and now it works perfectly well here.

[1] http://www.bitshrine.org/gpp/0024-MPC8610-ETH-Lyra-native-ethernet.txt

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-13 08:53:48 -05:00
David S. Miller
9a28dbf8af sparc64: Use a TS_RESTORE_SIGMASK
This mirrors x86 changeset 5a8da0ea82
("signals: x86 TS_RESTORE_SIGMASK") on sparc64.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-12 22:45:15 -07:00
Mike Frysinger
9cd9c616f5 [Blackfin] arch: rename bf5xx-flash to bfin-async-flash
- move all kconfig board settings into board resources
 - fixup casting style according to lkml feedback
 - rewrite driver so that it can handle arbitrary
   of instances according to the declared platform resources

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Cc: Joern Engel <joern@logfs.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-13 12:31:32 +08:00
David S. Miller
94d149c34c sparc: Fix mremap address range validation.
Just like mmap, we need to validate address ranges regardless
of MAP_FIXED.

sparc{,64}_mmap_check()'s flag argument is unused, remove.

Based upon a report and preliminary patch by
Jan Lieskovsky <jlieskov@redhat.com>

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-12 16:33:33 -07:00
Ingo Molnar
5aaca7a7a5 Merge branch 'linus' into x86/urgent 2008-05-12 22:29:14 +02:00
Cyrill Gorcunov
8c6b0ef2ea x86: wakeup.lds.S - section ordering fix
To allow linker to catch sections overlapping we have to declare
them in appropriate order.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-12 21:27:51 +02:00
James Bottomley
f8955ebe3e x86: [VOYAGER] fix duplicate phys_cpu_present_map symbol
The phys_cpu_present_map is an expected symbol in the SMP harness.
Unfortunately, x86 recently moved this and a few others to
kernel/setup.c where it doesn't quite work because voyager has to
define its own.  Use CONFIG_X86_LOCAL_APIC to isolate these
definitions and fix up another area in setup.c where CONFIG_X86_SMP
should be used instead of CONFIG_SMP.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: toralf.foerster@gmx.de
Cc: Mike Travis <travis@sgi.com>
Cc: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-12 21:27:51 +02:00
Takashi Iwai
8965eb1938 x86/pci: fix broken ISA DMA
Rene Herman reported:

> commit 8779f2fc3b
>
> "x86: don't try to allocate from DMA zone at first"
>
> breaks all of ISA DMA. Or all of ALSA ISA DMA at least. All
> ISA soundcards are silent following that commit -- no error
> messages, everything appears fine, just silence.

That patch is buggy. We had an implicit assumption that
dev = NULL for ISA devices that require 24bit DMA.

The recent work on x86 dma_alloc_coherent() breaks the ISA DMA buffer
allocation, which is represented by "dev = NULL" and requires 24bit
DMA implicitly.

Bisected-by: Rene Herman <rene.herman@keyaccess.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Rene Herman <rene.herman@keyaccess.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-12 21:27:50 +02:00
Linus Torvalds
8d97b84935 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (28 commits)
  [MIPS] Pb1000: bury the remnants of the PCI code
  [MIPS] Fix build failure in mips oprofile code
  [MIPS] fix warning message on SMP kernels
  [MIPS] markeins: build fix
  [MIPS] ELF handling - use SELFMAG instead of numeric constant
  [MIPS] Get rid of __ilog2
  [MIPS] Fix __fls for non-MIPS32/MIPS64 cpus
  [MIPS] XXS1500 code style cleanup
  [MIPS] MTX-1 code style cleanup
  [MIPS] Pb1200/DBAu1200 code style cleanup
  [MIPS] Pb1550 code style cleanup
  [MIPS] Pb1500 code style cleanup
  [MIPS] Pb1100 code style cleanup
  [MIPS] Pb1000 code style cleanup
  [MIPS] DBAu1xx0 code style cleanup
  [MIPS] Alchemy PCI code style cleanup
  [MIPS] Alchemy common code style cleanup
  [MIPS] Alchemy common headers style cleanup
  [MIPS] Add empty argument parenthesis to GCC_IMM_ASM
  [MIPS] msp_hwbutton.c: minor irq handler cleanups
  ...
2008-05-12 09:03:42 -07:00
Sergei Shtylyov
cb0e8b0fba [MIPS] Pb1000: bury the remnants of the PCI code
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:56 +01:00
Thiemo Seufer
005ca9a3f1 [MIPS] Fix build failure in mips oprofile code
This patch fixes a warning-as-error induced build failure of 64bit MIPS
kernels.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:56 +01:00
Thiemo Seufer
83738e3073 [MIPS] fix warning message on SMP kernels
This patch fixes a (harmless) warning message.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:56 +01:00
Adrian Bunk
b01273f120 [MIPS] markeins: build fix
This patch fixes the following build errror caused by
commit 7dffa3c673
(ntp: handle leap second via timer):

<--  snip  -->

...
  CC      arch/mips/emma2rh/markeins/setup.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/mips/emma2rh/markeins/setup.c:79: error: conflicting types for 'clock'
/home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/clocksource.h:96: error: previous declaration of 'clock' was here
make[2]: *** [arch/mips/emma2rh/markeins/setup.o] Error 1

<--  snip  -->

[Ralf: reformated to 80 colums after the fix and marked emma2rh_clock as
__initdata]

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:56 +01:00
Cyrill Gorcunov
d303f4a1a0 [MIPS] ELF handling - use SELFMAG instead of numeric constant
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:55 +01:00
Sergei Shtylyov
7ff83f21d2 [MIPS] XXS1500 code style cleanup
Fix several errors and warnings given by checkpatch.pl:

- use of C99 // comments;

- using simple_strtol() where strict_strtol() could be used.

In addition to these changes, also do the following:

- remove needless parentheses;

- remove unneeded numeric literal type cast;

- insert spaces between operator and its operands;

- remove excess new lines;

- remove space after the type cast's closing parenthesis;

- insert missing space before closing brace in the structure initializer;

- fix typos, capitalize acronyms, etc. in the comments;

- update MontaVista copyright;

- remove Pete Popov's old email address...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:55 +01:00
Sergei Shtylyov
1ff1a78cbb [MIPS] MTX-1 code style cleanup
Fix many errors and warnings given by checkpatch.pl:

- space after opening and before closing parentheses;

- use of C99 // comments;

- leading spaces instead of tabs;

- brace not on the same line with 'else' in the 'if' statement;
  statement;

- printk() without KERN_* facility level;

- using simple_strtol() where strict_strtol() could be used.

- including <asm/gpio.h> instead of <linux/gpio.h>.

In addition to these changes, also do the following:

- insert spaces between operator and its operands;

- replace tab between the function type and name with space in
  mtx1_pci_idsel() declaration;

- remove space after the type cast's closing parenthesis;

- insert missing space before closing brace in the array/structure
  initializers;

- update MontaVista copyright;

- remove Pete Popov's old email address...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:55 +01:00
Sergei Shtylyov
c3d1d5c8c1 [MIPS] Pb1200/DBAu1200 code style cleanup
Fix several errors and warnings given by checkpatch.pl:

- use of C99 // comments;

- initialization of a 'static' variable to 0;

- space after opening and before closing parentheses;

- missing space between 'for' and opening parenthesis;

- macros with complex values not enclosed in parentheses;

- printk() without KERN_* facility level;

- unnecessary braces for single-statement block;

- using simple_strtol() where strict_strtol() could be used;

- line over 80 characters.

In addition to these changes, also do the following:

- mention DBAu1200 board in the Makefile;

- replace the group of #include/#ifdef directives by a single
  #include <au1xxx.h> since this header contains the needed stuff;

- properly indent the blocks;

- insert spaces between operator and its operands, remove excess spaces
  there;

- remove needless parentheses and add some for clarity;

- replace numeric literals/expressions with the matching macros;

- remove space after the type cast's closing parenthesis;

- reduce pb1200_setup_cascade() to the single 'return' statement;

- reduce the number of printed empty lines in the so-called CPLD
  workaround;

- remove #undef AU1X00_EXTERNAL_INT since that macro is not defined
  anywhere;

- replace spaces after the macro name with tabs in the #define directives;

- remove excess tabs after the macro name in the #define directives;

- fix typo in the BCSR_RESETS_PWMR1mUX macro's name;

- group all Pb1200 PCMCIA definitions together;

- put the function's result type and name/parameters on the same line;

- insert missing and remove excess new lines;

- make the multi-line comment style consistent with the kernel style
  elsewhere by adding empty first line and/or adding space/asterisk on
  their left side;

- fix typos/errors, capitalize acronyms, etc. in the comments;

- combine some comments;

- update MontaVista copyright;

- remove Pete Popov's old email address...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:55 +01:00
Sergei Shtylyov
6afabe6c93 [MIPS] Pb1550 code style cleanup
Fix a few errors and warnings given by checkpatch.pl:

- macros with complex values not enclosed in parentheses;

- printk() without KERN_* facility level;

- unnecessary braces for single-statement block;

- using simple_strtol() where strict_strtol() could be used.

In addition to these changes, also do the following:

- replace numeric literals with the matching macros;

- properly indent the code and the array initializers;

- insert spaces between operator and its operands, also remove excess spaces
  there;

- remove space after the type cast's closing parenthesis;

- insert missing space before closing brace in the array initializers;

- replace spaces after the macro name with tabs in the #define directives, also
  sometimes insert space there for better looks;

- remove excess tabs after the macro name in the #define directives;

- fix typos/errors, capitalize acronyms, etc. in the comments;

- make the multi-line comment style consistent with the kernel style elsewhere
  by adding empty first line;

- update MontaVista copyright;

- remove Pete Popov's old email address...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:55 +01:00
Sergei Shtylyov
2091a17ff7 [MIPS] Pb1500 code style cleanup
Fix several errors and warnings given by checkpatch.pl:

- use of C99 // comments;

- printk() without KERN_* facility level;

- unnecessary braces for single-statement block;

- using simple_strtol() where strict_strtol() could be used.

In addition to these changes, also do the following:

- replace numeric literals/expressions with the matching macros;

- insert spaces between operator and its operands;

- properly indent the code and the array initializers;

- remove useless #if dirctive from board_setup();

- remove needless parentheses;

- remove unneeded type casts;

- remove excess new lines;

- make hexadecimal literals all lower case;

- remove space after the type cast's closing parenthesis;

- insert missing space before closing brace in the array initializers;

- replace spaces after the macro name with tabs in the #define directives,
  also sometimes insert space there for better looks;

- fix typos/errors, capitalize acronyms, etc. in the comments;

- update MontaVista copyright;

- remove Pete Popov's old email address...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:54 +01:00
Sergei Shtylyov
be1c3c1ed1 [MIPS] Pb1100 code style cleanup
Fix several errors and warnings given by checkpatch.pl:

- space between asterisk and variable name;

- use of C99 // comments;

- using simple_strtol() where strict_strtol() could be used.

In addition to these changes, also do the following:

- properly indent the code;

- remove space after the type cast's closing parenthesis;

- replace numeric literals/expressions with the matching macros;

- replace spaces after the macro name with tabs in the #define directives,
  and sometimes insert spaces there;

- fix typos/errors, capitalize acronyms, etc. in the comments;

- make the multi-line comment style consistent with the kernel style
  elsewhere by adding empty first line;

- update MontaVista copyright;

- remove Pete Popov's old email address...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:54 +01:00
Sergei Shtylyov
7916c3548e [MIPS] Pb1000 code style cleanup
Fix several errors and warnings given by checkpatch.pl:

- use of C99 // comments;

- brace not on the same line with condition in the 'switch' statement;

- printk() without KERN_* facility level;

- unnecessary braces for single-statement block;

- using simple_strtol() where strict_strtol() could be used.

In addition to these changes, also do the following:

- properly indent the 'switch' statement;

- remove needless parentheses;

- insert spaces between operator and its operands;

- replace numeric literals/expressions with the matching macros;

- remove useless #if dirctive from board_setup();

- remove unneeded numeric literal type casts;

- remove space after the type cast's closing parenthesis;

- replace spaces after the macro name with tabs in the #define directives, and
  sometimes insert spaces there;

- remove excess new lines;

- fix typos/errors, capitalize acronyms, etc. in the comments;

- make the multi-line comment style consistent with the kernel style elsewhere
  by adding empty first/last line;

- combine some comments;

- update MontaVista copyright;

- remove Pete Popov's old email address...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:54 +01:00
Sergei Shtylyov
abd14cc00d [MIPS] DBAu1xx0 code style cleanup
Fix several errors and warnings given by checkpatch.pl:

- macros with complex values not enclosed in parentheses;

- leading spaces instead of tabs;

- printk() without KERN_* facility level;

- using simple_strtol() where strict_strtol() could be used;

- line over 80 characters.

In addition to these changes, also do the following:

- initialize variable instead of assigning value later where it makes sense;

- insert spaces between operator and its operands, also remove excess spaces
  there;

- remove unneeded numeric literal type casts;

- remove needless parentheses;

- remove space after the type cast's closing parenthesis;

- insert missing space before closing brace in the array initializers;

- replace spaces after the macro name with tabs in the #define directives;

- remove excess tabs after the macro name in the #define directives;

- fix typos/errors, capitalize acronyms, etc. in the comments;

- make the multi-line comment style consistent with the kernel style elsewhere
  by adding empty first/last line;

- update MontaVista copyright;

- remove Pete Popov's old email address...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:53 +01:00
Sergei Shtylyov
a9633279cf [MIPS] Alchemy PCI code style cleanup
Fix 15 errors and 4 warnings given by checkpatch.pl:

- space between the asterisk and variable name;

- space after opening and before closing parentheses;

- leading spaces instead of tabs;

- printk() without KERN_* facility level;

- unnecessary braces for single-statement block;

- line over 80 characters.

In addition to these changes, also do the following:

- combine the nested 'if' statements into one when possible;

- remove needless parentheses;

- add missing and remove excess spaces between operator and its operands;

- fix printk() format specifiers mismatching the argument types;

- put the function's result type and name/parameters on the same line;

- insert missing and remove excess new lines;

- properly indent multi-line expressions;

- make the multi-line comment style consistent with the kernel style elsewhere
  by adding empty first line;

- fix typos, capitalize acronyms, etc. in the comments;

- update MontaVista copyright;

- remove Pete Popov's old email address...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:52 +01:00
Sergei Shtylyov
c1dcb14ec2 [MIPS] Alchemy common code style cleanup
Fix many errors and warnings given by checkpatch.pl:

- use of C99 // comments;

- missing space between the type and asterisk in a variable declaration;

- space between the asterisk and function/variable name;

- leading spaces instead of tabs;

- space after opening and before closing parentheses;

- initialization of a 'static' variable to 0;

- missing spaces around assignement/comparison operator;

- brace not on the same line with condition (or 'else') in the 'if'/'switch'
  statement;

- missing space between 'if'/'for'/'while' and opening parenthesis;

- use of assignement in 'if' statement's condition;

- printk() without KERN_* facility level;

- EXPORT_SYMBOL() not following its function immediately;

- unnecessary braces for single-statement block;

- adding new 'typedef' (where including <linux/types.h> will do);

- use of 'extern' in the .c file (where it can be avoided by including header);

- line over 80 characters.

In addition to these changes, also do the following:

- insert missing space after opening brace and/or before closing brace in the
  structure initializers;

- insert spaces between operator and its operands;

- put the function's result type and name/parameters on the same line;

- properly indent multi-line expressions;

- remove commented out code;

- remove useless initializers and code;

- remove needless parentheses;

- fix broken/excess indentation;

- add missing spaces between operator and its operands;

- insert missing and remove excess new lines;

- group 'else' and 'if' together where possible;

- make au1xxx_platform_init() 'static';

- regroup variable declarations in pm_do_freq() for prettier look;

- replace numeric literals with the matching macros;

- fix printk() format specifiers mismatching the argument types;

- make the multi-line comment style consistent with the kernel style elsewhere
  by adding empty first line and/or adding space on their left side;

- make two-line comments that only have one line of text one-line;

- fix typos/errors, capitalize acronyms, etc. in the comments;

- fix/remove obsolete references in the comments;

- reformat some comments;

- add comment about the CPU:counter clock ratio to calc_clock();

- update MontaVista copyright;

- remove Pete Popov's and Steve Longerbeam's old email addresses...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:52 +01:00
Ralf Baechle
ad1d77a385 [MIPS] Add empty argument parenthesis to GCC_IMM_ASM
This is to clarify that GCC_IMM_ASM does not take an argument as the
context of the macro's invocation seems to imply.

As suggested by Maciej W. Rozycki (macro@linux-mips.org).

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:52 +01:00
Jeff Garzik
1c9e919f48 [MIPS] msp_hwbutton.c: minor irq handler cleanups
- remove always-true test

- neaten request_irq() indentation

This change's main purpose is to prepare for the patchset in
jgarzik/misc-2.6.git#irq-remove, that explores removal of the
never-used 'irq' argument in each interrupt handler.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:52 +01:00
Adrian Bunk
a640630460 [MIPS] unexport __kmap_atomic_to_page
This patch removes the no longer used export of __kmap_atomic_to_page.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:51 +01:00
Ralf Baechle
dc3bf3532b [MIPS] Initialize max_pfn again.
This was dropped by

commit a0d9e2d891e4cf54676c430da63bd4a17d1cdb80 (lmo)
commit b6f1f0dea1 (ko)
Author: Franck Bui-Huu <vagabon.xyz@gmail.com>
Date:   Fri Aug 11 17:51:48 2006 +0200

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:51 +01:00
Ralf Baechle
f4324f3eeb [MIPS] IRIX: Handle do_brk() error return correctly.
do_brk's return value was stored in an unsigned long variable before being
tested for less than zero making the test always fail.  Also do_brk's
called irix_map_prda_page wasn't forwarding do_brk() success.

Bug checking the return value of do_brk() and initial fix for it found
by Roel Kluin <12o3l@tiscali.nl>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:51 +01:00
Kevin D. Kissell
1928cc84a0 [MIPS] MT: Functional fixes and a little reformatting of APRP support
Signed-off-by: Kevin D. Kissell <kevink@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:51 +01:00
Ralf Baechle
9f2546aded [MIPS] Don't use max_pfn which is no longer initialized these days.
Still won't play nicely with esotheric configurations such as discontig
memory ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:51 +01:00
Roel Kluin
d0e7ba0632 [MIPS] ip27-timer: fix unsigned irq < 0
Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-By: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:51 +01:00
Kevin D. Kissell
b618336aac [MIPS] Fixes necessary for non-SMP kernels and non-relocatable binaries
Signed-off-by: Kevin D. Kissell <kevink@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:51 +01:00
Sergei Shtylyov
8e07c2c6af [MIPS] Alchemy: SMBus resource fix
The Alchemy platform code registers the SMBus device using the virtual
address of its registers instead of the physical one -- fix this, taking
into account that actually the whole megabyte is decoded by any of the
programmable serial controllers (one of which is SMBus), and that all the
Alchemy peripherals are directly mappable into KSEG1 kernel space and
therefore ioremap() call would just boil down to CKSEG1ADDR() invocation.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:50 +01:00
Linus Torvalds
3c29970c02 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] ppc: More compile fixes
  [POWERPC] ppc: Don't run prom_init_check for arch/ppc builds
  [POWERPC] ppc: Include <asm/cacheflush.h> in kernel/ppc_ksyms.c
  [POWERPC] ppc: Use ebony_defconfig for defconfig
  [POWERPC] Fix default cputable entries for e200 and e500 families
2008-05-12 07:29:08 -07:00
Linus Torvalds
59b1c82500 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Work around memory probing bug in openfirmware.
  sparc32: fix rtrap.S typo
  sparc32: Fix build.
2008-05-12 07:28:37 -07:00
Paul Mackerras
0d4b6b901c [POWERPC] ppc: More compile fixes
This fixes a few more miscellaneous compile problems with ARCH=ppc.

1. Don't compile devres.c on ARCH=ppc, it doesn't have ioremap_flags.
2. Include <asm/irq.h> in setup.c for the __DO_IRQ_CANON definition.
3. Include <linux/proc_fs.h> in residual.c for the
   definition of create_proc_read_entry.
4. Fix xchg_ptr to be a static inline to eliminate a compiler warning.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-12 22:57:51 +10:00
Segher Boessenkool
6a8b23086c [POWERPC] ppc: Don't run prom_init_check for arch/ppc builds
arch/ppc doesn't have prom_init.o (anymore).

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-12 20:27:50 +10:00
Segher Boessenkool
9717e87fb1 [POWERPC] ppc: Include <asm/cacheflush.h> in kernel/ppc_ksyms.c
It needs it:

	arch/ppc/kernel/ppc_ksyms.c:152: error: '__flush_icache_range'
	undeclared here (not in a function)

and a few more like that.

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-12 20:27:50 +10:00
Segher Boessenkool
426e53fcba [POWERPC] ppc: Use ebony_defconfig for defconfig
We used to use common_defconfig, but it was removed some time ago.

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-12 20:27:50 +10:00
Paul Mackerras
516c8be3a9 [POWERPC] Fix default cputable entries for e200 and e500 families
Commit 76bc080ef5 ("POWERPC] Make default
cputable entries reflect selected CPU family") added default entries
for the e200 and e500 families, but missed a closing brace on those
entries, as pointed out by David Gibson.  This adds the closing braces.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-12 14:20:35 +10:00
David S. Miller
a94a172d6c sparc64: Work around memory probing bug in openfirmware.
Read all of the OF memory and translation tables, then read
the physical available memory list twice.

When making these requests, OF can allocate more memory to
do it's job, which can remove pages from the available
memory list.

So fetch in all of the tables at once, and fetch the available
list last to make sure we read a stable value.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-11 21:04:48 -07:00
Al Viro
45b3947c2d [Blackfin] arch: Blackfin checksum annotations
FSVOtest in this case, since I don't have the hardware...
However, all changes seen by gcc are actually
 - explicit cast to unsigned short in return expression of functions
    returning unsigned short
 - csum_fold() return type changed from unsigned int to __sum16
   (unsigned short), same as for all other architecture and as net/* expects;
   expression actually returned is ((~(sum << 16)) >> 16) with sum being
   unsigned 32bit, so it's (a) going to fit into the range of unsigned short
   and (b) had been unsigned all along, so no sign expansion mess happened.

Tested-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Miller <davem@davemloft.net>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-12 11:55:10 +08:00
Robert Reif
8bf3028ede sparc32: fix rtrap.S typo
Fix compile problem in rtrap.S

arch/sparc/kernel/built-in.o: In function `ret_trap_userwins_ok':
arch/sparc/kernel/rtrap.S:(.text+0x1900): undefined reference to 
`PSR_SYCALL'

Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-11 18:05:20 -07:00
Linus Torvalds
854a989546 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: Fix debugger syscall restart interactions.
  sparc: Fix ptrace() detach.
  sparc32: Don't twiddle PT_DTRACE in exec.
  sparc video: remove open boot prom code
2008-05-11 09:55:48 -07:00
David S. Miller
28e6103665 sparc: Fix debugger syscall restart interactions.
So, forever, we've had this ptrace_signal_deliver implementation
which tries to handle all of the nasties that can occur when the
debugger looks at a process about to take a signal.  It's meant
to address all of these issues inside of the kernel so that the
debugger need not be mindful of such things.

Problem is, this doesn't work.

The idea was that we should do the syscall restart business first, so
that the debugger captures that state.  Otherwise, if the debugger for
example saves the child's state, makes the child execute something
else, then restores the saved state, we won't handle the syscall
restart properly because we lose the "we're in a syscall" state.

The code here worked for most cases, but if the debugger actually
passes the signal through to the child unaltered, it's possible that
we would do a syscall restart when we shouldn't have.

In particular this breaks the case of debugging a process under a gdb
which is being debugged by yet another gdb.  gdb uses sigsuspend
to wait for SIGCHLD of the inferior, but if gdb itself is being
debugged by a top-level gdb we get a ptrace_stop().  The top-level gdb
does a PTRACE_CONT with SIGCHLD to let the inferior gdb see the
signal.  But ptrace_signal_deliver() assumed the debugger would cancel
out the signal and therefore did a syscall restart, because the return
error was ERESTARTNOHAND.

Fix this by simply making ptrace_signal_deliver() a nop, and providing
a way for the debugger to control system call restarting properly:

1) Report a "in syscall" software bit in regs->{tstate,psr}.
   It is set early on in trap entry to a system call and is fully
   visible to the debugger via ptrace() and regsets.

2) Test this bit right before doing a syscall restart.  We have
   to do a final recheck right after get_signal_to_deliver() in
   case the debugger cleared the bit during ptrace_stop().

3) Clear the bit in trap return so we don't accidently try to set
   that bit in the real register.

As a result we also get a ptrace_{is,clear}_syscall() for sparc32 just
like sparc64 has.

M68K has this same exact bug, and is now the only other user of the
ptrace_signal_deliver hook.  It needs to be fixed in the same exact
way as sparc.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-11 02:07:19 -07:00
David S. Miller
986bef854f sparc: Fix ptrace() detach.
Forever we had a PTRACE_SUNOS_DETACH which was unconditionally
recognized, regardless of the personality of the process.

Unfortunately, this value is what ended up in the GLIBC sys/ptrace.h
header file on sparc as PTRACE_DETACH and PT_DETACH.

So continue to recognize this old value.  Luckily, it doesn't conflict
with anything we actually care about.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-11 01:59:05 -07:00
Linus Torvalds
5bb7ff795f Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 5033/1: Unbreak corgi_ssp by registering ssp drivers earlier.
  [ARM] Orion: clean up addr-map.c after window setting code purge
  [ARM] Orion: pass proper t_clk into mv643xx_eth
  [ARM] Orion: use mv643xx_eth driver mbus window handling
  [ARM] pxa: Fix RCSR handling
  [ARM] lubbock: fix compilation
  [ARM] 5032/1: Added cpufreq support for pxa27x CPU
  [ARM] 5031/1: Indentation correction in cpu-pxa.c.
  [ARM] 5028/1: pxafb: fix broken "backward compatibility way" in framebuffer
  [ARM] 4882/2: Correction for S3C2410 clkout generation
  [ARM] 5027/1: Fixed random memory corruption on pxa suspend cycle.
  [ARM] 5024/1: Fix some minor clk issues in the MMCI PL18x driver
  [ARM] 5023/1: Fix broken gpio interrupts on ep93xx
  ns9xxx: fix sparse warning
  ns9xxx: check for irq lockups
  ns9xxx: fix handle_prio_irq to unmask irqs with lower priority
2008-05-10 21:14:05 -07:00
Linus Torvalds
3e1b83ab39 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
  x86: rdc: leds build/config fix
  x86: sysfs cpu?/topology is empty in 2.6.25 (32-bit Intel system)
  x86: revert commit 709f744 ("x86: bitops asm constraint fixes")
  x86: restrict keyboard io ports reservation to make ipmi driver work
  x86: fix fpu restore from sig return
  x86: remove spew print out about bus to node mapping
  x86: revert printk format warning change which is for linux-next
  x86: cleanup PAT cpu validation
  x86: geode: define geode_has_vsa2() even if CONFIG_MGEODE_LX is not set
  x86: GEODE: cache results from geode_has_vsa2() and uninline
  x86: revert geode config dependency
2008-05-10 21:10:48 -07:00
Linus Torvalds
8e3e076c5a BKL: revert back to the old spinlock implementation
The generic semaphore rewrite had a huge performance regression on AIM7
(and potentially other BKL-heavy benchmarks) because the generic
semaphores had been rewritten to be simple to understand and fair.  The
latter, in particular, turns a semaphore-based BKL implementation into a
mess of scheduling.

The attempt to fix the performance regression failed miserably (see the
previous commit 00b41ec261 'Revert
"semaphore: fix"'), and so for now the simple and sane approach is to
instead just go back to the old spinlock-based BKL implementation that
never had any issues like this.

This patch also has the advantage of being reported to fix the
regression completely according to Yanmin Zhang, unlike the semaphore
hack which still left a couple percentage point regression.

As a spinlock, the BKL obviously has the potential to be a latency
issue, but it's not really any different from any other spinlock in that
respect.  We do want to get rid of the BKL asap, but that has been the
plan for several years.

These days, the biggest users are in the tty layer (open/release in
particular) and Alan holds out some hope:

  "tty release is probably a few months away from getting cured - I'm
   afraid it will almost certainly be the very last user of the BKL in
   tty to get fixed as it depends on everything else being sanely locked."

so while we're not there yet, we do have a plan of action.

Tested-by: Yanmin Zhang <yanmin_zhang@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Alexander Viro <viro@ftp.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-10 20:58:02 -07:00