Convert SP804, MXC, Nomadik and Orion 32-bit down-counting clocksources
to generic mmio clocksource infrastructure.
Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Alessandro Rubini <rubini@unipv.it>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Acked-by: NNicolas Pitre <nico@fluxnic.net>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Convert ixp4xx, lpc32xx, mxc, netx, pxa, sa1100, tcc8k, tegra and u300
to use the generic mmio clocksource recently introduced.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Acked-by: NEric Miao <eric.y.miao@gmail.com>
Acked-by: N"Hans J. Koch" <hjk@hansjkoch.de>
Acked-by: NColin Cross <ccross@android.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Olof Johansson <olof@lixom.net>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Update sa1100 clockevents code to reflect what its later derivative
does with clockevents_calc_mult_shift().  Use OSSR_M* constants too.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Tested-by: NTony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The OMAP1 clocksource interrupt handler just increments a variable
which otherwise isn't used, so this seems to be unnecessary.  Tony
Lindgren confirms, so lets remove it.
Acked-by: NKevin Hilman <khilman@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

s5p duplicates the runtime selection of the timer register three times.
Move this out into a separate function.

FIXME: It is unclear whether this code needs to support true runtime
selection of the timer register, or whether it can be selected once at
init time.
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Commit 69e3cea8 ("powerpc/smp: Make start_secondary_resume
available to all CPU variants") introduced start_secondary_resume to
misc_32.S, however it uses a 64-bit instruction which is not valid on
32-bit platforms.  Use 'stw' instead.
Reported-by: NRichard Cochran <richardcochran@gmail.com>
Tested-by: NRichard Cochran <richardcochran@gmail.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Commit e66eed65 ("list: remove prefetching from regular list
iterators") removed the include of prefetch.h from list.h, which
uncovered several cases that had apparently relied on that rather
obscure header file dependency.

So this fixes things up a bit, using

   grep -L linux/prefetch.h $(git grep -l '[^a-z_]prefetchw*(' -- '*.[ch]')
   grep -L 'prefetchw*(' $(git grep -l 'linux/prefetch.h' -- '*.[ch]')

to guide us in finding files that either need <linux/prefetch.h>
inclusion, or have it despite not needing it.

There are more of them around (mostly network drivers), but this gets
many core ones.
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

core_kernel_data() wants to know if an address looks like kernel
data. IA64 has had _edata forever, but never needed _sdata until
now.
Signed-off-by: NTony Luck <tony.luck@intel.com>

commit 9d07bc84
"powerpc: Properly handshake CPUs going out of boot spin loop"

Would cause a miscalculation of the hard CPU ID. It removes breaking
out of the loop when finding a match with a processor, thus the "i"
used as an index in the intserv array is always incorrect

This broke interrupt on my PowerMac laptop.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

A new utility function (core_kernel_data()) is used to determine if a
passed in address is part of core kernel data or not. It may or may not
return true for RO data, but this utility must work for RW data.

Thus both _sdata and _edata must be defined and continuous,
without .init sections that may later be freed and replaced by
volatile memory (memory that can be freed).

This utility function is used to determine if data is safe from
ever being freed. Thus it should return true for all RW global
data that is not in a module or has been allocated, or false
otherwise.

Also change core_kernel_data() back to the more precise _sdata condition
and document the function.
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
Acked-by: NRalf Baechle <ralf@linux-mips.org>
Acked-by: NHirokazu Takata <takata@linux-m32r.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: JamesE.J.Bottomley <jejb@parisc-linux.org>
Link: http://lkml.kernel.org/r/1305855298.1465.19.camel@gandalf.stny.rr.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
----
 arch/alpha/kernel/vmlinux.lds.S   |    1 +
 arch/m32r/kernel/vmlinux.lds.S    |    1 +
 arch/m68k/kernel/vmlinux-std.lds  |    2 ++
 arch/m68k/kernel/vmlinux-sun3.lds |    1 +
 arch/mips/kernel/vmlinux.lds.S    |    1 +
 arch/parisc/kernel/vmlinux.lds.S  |    3 +++
 kernel/extable.c                  |   12 +++++++++++-
 7 files changed, 20 insertions(+), 1 deletion(-)

Commits a5d4f3ad ("powerpc: Base support for exceptions using
HSRR0/1") and 673b189a ("powerpc: Always use SPRN_SPRG_HSCRATCH0
when running in HV mode") cause compile and link errors for 32-bit
classic Book 3S processors when KVM is enabled.  This fixes these
errors.
Signed-off-by: NPaul Mackerras <paulus@samba.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

The vcpu->arch.pending_exceptions field is a bitfield indexed by
interrupt priority number as returned by kvmppc_book3s_vec2irqprio.
However, kvmppc_core_pending_dec was using an interrupt vector shifted
by 7 as the bit index.  Fix it to use the irqprio value for the
decrementer interrupt instead.  This problem was found by code
inspection.
Signed-off-by: NPaul Mackerras <paulus@samba.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Signed-off-by: NDave Jones <davej@redhat.com>

The Atari keyboard driver calls atari_mouse_interrupt_hook if it's set, not
atari_input_mouse_interrupt_hook. Fix below.

[geert] Killed off atari_mouse_interrupt_hook completely, after fixing another
incorrect assignment in atarimouse.c.
Signed-off-by: NMichael Schmitz <schmitz@debian.org>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

It may trigger a warning in fs/proc/generic.c:__xlate_proc_name() when
trying to add an entry for the interrupt handler to sysfs.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

Suggested-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

We reserved the numbers a long time ago, but never wired them up in the
syscall table as they need TIF_RESTORE_SIGMASK, which we only got last year
in commit cb6831d5d3099e772a510eb3e1ed0760ccffb45e ("m68k: Switch to saner
sigsuspend()")
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NGreg Ungerer <gerg@uclinux.org>
Cc: stable@kernel.org

Impact for nommu:
  - Store table in .rodata instead of .text,
  - Let kernel/sys_ni.c handle the stubbing of MMU-only syscalls,
  - Implement sys_mremap and sys_nfsservct,
  - Remove unused padding at the end of the table.

Impact for mmu:
  - Store table in .rodata instead of .data.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NGreg Ungerer <gerg@uclinux.org>

find_next bitops on m68k (find_next_zero_bit, find_next_bit, and
find_next_bit_le) may cause out of bounds memory access
when the bitmap size in bits % 32 != 0 and offset (the bitnumber
to start searching at) is very close to the bitmap size.

For example,

       unsigned long bitmap[2] = { 0, 0 };
       find_next_bit(bitmap, 63, 62);

1. find_next_bit() tries to find any set bits in bitmap[1],
   but no bits set.

2. Then find_first_bit(bimap + 2, -1)

3. Unfortunately find_first_bit() takes unsigned int as the size argument.

4. find_first_bit will access bitmap[2~] until it find any set bits.

Add missing tests for stepping beyond the end of the bitmap to all
find_{first,next}_*() functions, and make sure they never return a value
larger than the bitmap size.
Reported-by: NAkinobu Mita <akinobu.mita@gmail.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

Hence use "offset" in find_next_{,zero_}bit(), like is already done for
find_next_{,zero_}bit_le()
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

Cleanup code/data sections definitions
accordingly to include/linux/init.h.
Signed-off-by: NDaniel Kiper <dkiper@net-space.pl>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Cleanup code/data sections definitions
accordingly to include/linux/init.h.
Signed-off-by: NDaniel Kiper <dkiper@net-space.pl>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Cleanup code/data sections definitions
accordingly to include/linux/init.h.
Signed-off-by: NDaniel Kiper <dkiper@net-space.pl>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Cleanup code/data sections definitions
accordingly to include/linux/init.h.
Signed-off-by: NDaniel Kiper <dkiper@net-space.pl>
[v1: Rebased on top of latest linus's to include fixes in mmu.c]
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

It doesn't make sense to unconditionally unmask a disabled irq when
migrating it from offlined cpu to another. If the irq triggers then it
will be disabled in the interrupt handler anyway. So we can just avoid
unmasking it.

[ tglx: Made masking unconditional again and fixed the changelog ]
Signed-off-by: NFengzhe Zhang <fengzhe.zhang@intel.com>
Signed-off-by: NKevin Tian <kevin.tian@intel.com>
Cc: Ian Campbell <Ian.Campbell@citrix.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Link: http://lkml.kernel.org/r/%3C625BA99ED14B2D499DC4E29D8138F1505C8ED7F7E3%40shsmsx502.ccr.corp.intel.com%3ESigned-off-by: NThomas Gleixner <tglx@linutronix.de>

IRQF_PER_CPU means that the irq cannot be moved away from a given
cpu. So it must not be migrated when the cpu goes offline.

[ tglx: massaged changelog ]
Signed-off-by: NFengzhe Zhang <fengzhe.zhang@intel.com>
Signed-off-by: NKevin Tian <kevin.tian@intel.com>
Cc: Ian Campbell <Ian.Campbell@citrix.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Link: http://lkml.kernel.org/r/%3C625BA99ED14B2D499DC4E29D8138F1505C8ED7F7E2%40shsmsx502.ccr.corp.intel.com%3ESigned-off-by: NThomas Gleixner <tglx@linutronix.de>

No need to recalculate the frequency and the conversion factors over
and over. Calculate the frequency once and use the new config/register
interface and let the core code do the math.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Reviewed-by: NIngo Molnar <mingo@elte.hu>
Link: http://lkml.kernel.org/r/%3C20110518210136.646482357%40linutronix.de%3E

Let the core do the work.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Reviewed-by: NIngo Molnar <mingo@elte.hu>
Link: http://lkml.kernel.org/r/%3C20110518210136.545615675%40linutronix.de%3E

It never really belonged into syscall.c and it's about to become well more
complex.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

As noticed by Kevin Cernekee <cernekee@gmail.com> in
http://www.linux-mips.org/cgi-bin/extract-mesg.cgi?a=linux-mips&m=2011-05&i=BANLkTikq04wuK%3Dbz%2BLieavmm3oDtoYWKxg%40mail.gmail.com

Patchwork: https://patchwork.linux-mips.org/patch/2387/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

We only use the three low-order mailbox bits.  Leave the upper bits alone
for possible use by drivers and other software.
Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2090/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Octeon uses different interrupt irq for timer and performance counters.
Set CvmCtl[IPPCI] to correct irq value very early.
Signed-off-by: NChandrakala Chavva <cchavva@caviumnetworks.com>
Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Cc: Chandrakala Chavva <cchavva@caviumnetworks.com>
Patchwork: https://patchwork.linux-mips.org/patch/2085/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Since d45dcef7 ["Bluetooth: Fix BT_L2CAP
and BT_SCO in Kconfig"] BT_L2CAP=m and BT_SCO=m are no longer valid so
change the settings from m to y.

[ralf@linux-mips.org: Merging only the MIPS parts of this patch.]
Signed-off-by: NWanlong Gao <wanlong.gao@gmail.com>
To: akpm@linux-foundation.org
To: manuel.lauss@googlemail.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linuxppc-dev@lists.ozlabs.org
Patchwork: https://patchwork.linux-mips.org/patch/2277/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Since 5ada28bf ["led-class: always
implement blinking"] LEDS_CLASS=m is no longer valid so change the setting
from m to y.
Signed-off-by: NWanlong Gao <wanlong.gao@gmail.com>
To: david.woodhouse@intel.com
To: akpm@linux-foundation.org
To: mingo@elte.hu
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2276/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRobert Millan <rmh@gnu.org>
Acked-by: NDavid Daney <ddaney@caviumnetworks.com>
Signed-off-by: NKevin Cernekee <cernekee@gmail.com>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: wu zhangjin <wuzhangjin@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2302/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NKevin Cernekee <cernekee@gmail.com>
Cc: Robert Millan <rmh@gnu.org>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: wu zhangjin <wuzhangjin@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2300/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Replace these sequences:

if (cpu == 0)
	__elf_platform = "foo";

with a trivial inline function.
Signed-off-by: NRobert Millan <rmh@gnu.org>
Signed-off-by: NKevin Cernekee <cernekee@gmail.com>
Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com>
Cc: wu zhangjin <wuzhangjin@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2304/
Patchwork: https://patchwork.linux-mips.org/patch/2374/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Assume that the boot loader knows the physical memory of the system and
deduce that information from the contents of the SDRAM control register.
It is still possible to override with with the "mem=" parameter, but we
have a sensible default now.
Signed-off-by: NMaarten ter Huurne <maarten@treewalker.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2319/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Some devices like the Netgear WGT634u are using minuses between the blocks
of the MAC address and other devices are using colons to separate them.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2366/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>