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16 years agox86: cleanup in amd_cpu_notify()
Robert Richter [Fri, 22 Aug 2008 18:23:38 +0000 (20:23 +0200)]
x86: cleanup in amd_cpu_notify()

small coding style fix.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agoMerge branch 'x86/urgent' into x86/cleanups
Ingo Molnar [Mon, 25 Aug 2008 09:10:42 +0000 (11:10 +0200)]
Merge branch 'x86/urgent' into x86/cleanups

16 years agox86: fix HPET regression in 2.6.26 versus 2.6.25, check hpet against BAR, v3
Yinghai Lu [Mon, 25 Aug 2008 07:56:08 +0000 (00:56 -0700)]
x86: fix HPET regression in 2.6.26 versus 2.6.25, check hpet against BAR, v3

David Witbrodt tracked down (and bisected) a hpet bootup hang on his
system to the following problem: a BIOS bug made the hpet device
visible as a generic PCI device. If e820 reserved entries happen to
be registered first in the resource tree [which v2.6.26 started doing],
then the PCI code will reallocate that device's BAR to some other
address - breaking timer IRQs and hanging the system.

( Normally hpet devices are hidden by the BIOS from the OS's PCI
  discovery via chipset magic. Sometimes the hpet is not a PCI device
  at all. )

Solve this fundamental fragility by making non-PCI platform drivers
insert resources into the resource tree even if it overlaps the e820
reserved entry, to keep the resource manager from updating the BAR.

Also do these checks for the ioapic and mmconfig addresses, and emit
a warning if this happens.

Bisected-by: David Witbrodt <dawitbro@sbcglobal.net>
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Tested-by: David Witbrodt <dawitbro@sbcglobal.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: do not enable TSC notifier if we don't need it
Linus Torvalds [Sun, 24 Aug 2008 18:52:06 +0000 (11:52 -0700)]
x86: do not enable TSC notifier if we don't need it

Impact: crash on non-TSC-equipped CPUs

Don't enable the TSC notifier if we *either*:

1. don't have a CPU, or
2. have a CPU with constant TSC.

In either of those cases, the notifier is either damaging (1) or useless(2).

From: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
16 years agox86 MCE: Fix CPU hotplug problem with multiple multicore AMD CPUs
Rafael J. Wysocki [Fri, 22 Aug 2008 20:23:09 +0000 (22:23 +0200)]
x86 MCE: Fix CPU hotplug problem with multiple multicore AMD CPUs

During CPU hot-remove the sysfs directory created by
threshold_create_bank(), defined in
arch/x86/kernel/cpu/mcheck/mce_amd_64.c, has to be removed before
its parent directory, created by mce_create_device(), defined in
arch/x86/kernel/cpu/mcheck/mce_64.c .  Moreover, when the CPU in
question is hotplugged again, obviously the latter has to be created
before the former.  At present, the right ordering is not enforced,
because all of these operations are carried out by CPU hotplug
notifiers which are not appropriately ordered with respect to each
other.  This leads to serious problems on systems with two or more
multicore AMD CPUs, among other things during suspend and hibernation.

Fix the problem by placing threshold bank CPU hotplug callbacks in
mce_cpu_callback(), so that they are invoked at the right places,
if defined.  Additionally, use kobject_del() to remove the sysfs
directory associated with the kobject created by
kobject_create_and_add() in threshold_create_bank(), to prevent the
kernel from crashing during CPU hotplug operations on systems with
two or more multicore AMD CPUs.

This patch fixes bug #11337.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Andi Kleen <andi@firstfloor.org>
Tested-by: Mark Langsdorf <mark.langsdorf@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix: make PCI ECS for AMD CPUs hotplug capable
Robert Richter [Fri, 22 Aug 2008 18:23:38 +0000 (20:23 +0200)]
x86: fix: make PCI ECS for AMD CPUs hotplug capable

Until now, PCI ECS setup was performed at boot time only and for cpus
that are enabled then. This patch fixes this and adds cpu hotplug.

Tests sequence (check if ECS bit is set when bringing cpu online again):

 # ( perl -e 'sysseek(STDIN, 0xC001001F, 0)'; hexdump -n 8 -e '2/4 "%08x " "\n"' )   < /dev/cpu/1/msr
 00000008 00404010
 # ( perl -e 'sysseek(STDOUT, 0xC001001F, 0); print pack "l*", 8, 0x00400010' ) > /dev/cpu/1/msr
 # ( perl -e 'sysseek(STDIN, 0xC001001F, 0)'; hexdump -n 8 -e '2/4 "%08x " "\n"' )   < /dev/cpu/1/msr
 00000008 00400010
 # echo 0 > /sys/devices/system/cpu/cpu1/online
 # echo 1 > /sys/devices/system/cpu/cpu1/online
 # ( perl -e 'sysseek(STDIN, 0xC001001F, 0)'; hexdump -n 8 -e '2/4 "%08x " "\n"' )   < /dev/cpu/1/msr
 00000008 00404010

Reported-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix: do not run code in amd_bus.c on non-AMD CPUs
Robert Richter [Fri, 22 Aug 2008 18:23:37 +0000 (20:23 +0200)]
x86: fix: do not run code in amd_bus.c on non-AMD CPUs

Jan Beulich wrote:

> Even worse - this would even try to access the MSR on non-AMD CPUs
> (currently probably prevented just by the fact that only AMD ones use
> family values of 0x10 or higher).

This patch adds cpu vendor check to the postcore_initcalls.

Reported-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: work around MTRR mask setting, v2
Ingo Molnar [Fri, 22 Aug 2008 06:22:23 +0000 (08:22 +0200)]
x86: work around MTRR mask setting, v2

improve the debug printout:

- make it actually display something
- print it only once

would be nice to have a WARN_ONCE() facility, to feed such things to
kerneloops.org.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix section mismatch warning - uv_cpu_init
Marcin Slusarz [Thu, 21 Aug 2008 18:49:05 +0000 (20:49 +0200)]
x86: fix section mismatch warning - uv_cpu_init

WARNING: vmlinux.o(.cpuinit.text+0x3cc4): Section mismatch in reference from the function uv_cpu_init() to the function .init.text:uv_system_init()
The function __cpuinit uv_cpu_init() references
a function __init uv_system_init().
If uv_system_init is only used by uv_cpu_init then
annotate uv_system_init with a matching annotation.

uv_system_init was ment to be called only once, so do it from codepath
(native_smp_prepare_cpus) which is called once, right before activation
of other cpus (smp_init).

Note: old code relied on uv_node_to_blade being initialized to 0,
but it'a not initialized from anywhere.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix VMI for early params
Alok Kataria [Thu, 21 Aug 2008 18:32:26 +0000 (11:32 -0700)]
x86: fix VMI for early params

while fixing a different bug i moved the call to vmi_init before
early params could be parsed.

This broke the vmi specific commandline parameters.
Fix that, by moving vmi initialization after kernel has got a chance to
parse early parameters.

Signed-off-by: Alok N Kataria <akataria@vmware.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix two modpost warnings in mm/init_64.c
Jan Beulich [Thu, 21 Aug 2008 13:28:42 +0000 (14:28 +0100)]
x86: fix two modpost warnings in mm/init_64.c

early_io{re,un}map() are __init and hence can't be called from __meminit
functions.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix 1:1 mapping init on 64-bit (memory hotplug case)
Jan Beulich [Thu, 21 Aug 2008 13:27:22 +0000 (14:27 +0100)]
x86: fix 1:1 mapping init on 64-bit (memory hotplug case)

While I don't have a hotplug capable system at hand, I think two issues need
fixing:

- pud_phys (in kernel_physical_ampping_init()) would remain uninitialized in
  the after_bootmem case

- the locking done just around phys_pmd_{init,update}() would leave out pgd
  updates, and it was needlessly covering code portions that do allocations
  (perhaps using a more friendly gfp value in alloc_low_page() would then be
  possible)

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: work around MTRR mask setting
Yinghai Lu [Fri, 22 Aug 2008 03:24:24 +0000 (20:24 -0700)]
x86: work around MTRR mask setting

Joshua Hoblitt reported that only 3 GB of his 16 GB of RAM is
usable. Booting with mtrr_show showed us the BIOS-initialized
MTRR settings - which are all wrong.

So the root cause is that the BIOS has not set the mask correctly:

>               [    0.429971]  MSR00000200: 00000000d0000000
>               [    0.433305]  MSR00000201: 0000000ff0000800
> should be ==> [    0.433305]  MSR00000201: 0000003ff0000800
>
>               [    0.436638]  MSR00000202: 00000000e0000000
>               [    0.439971]  MSR00000203: 0000000fe0000800
> should be ==> [    0.439971]  MSR00000203: 0000003fe0000800
>
>               [    0.443304]  MSR00000204: 0000000000000006
>               [    0.446637]  MSR00000205: 0000000c00000800
> should be ==> [    0.446637]  MSR00000205: 0000003c00000800
>
>               [    0.449970]  MSR00000206: 0000000400000006
>               [    0.453303]  MSR00000207: 0000000fe0000800
> should be ==> [    0.453303]  MSR00000207: 0000003fe0000800
>
>               [    0.456636]  MSR00000208: 0000000420000006
>               [    0.459970]  MSR00000209: 0000000ff0000800
> should be ==> [    0.459970]  MSR00000209: 0000003ff0000800

So detect this borkage and add the prefix 111.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: PAT Update validate_pat_support for intel CPUs
venkatesh.pallipadi@intel.com [Wed, 20 Aug 2008 23:45:53 +0000 (16:45 -0700)]
x86: PAT Update validate_pat_support for intel CPUs

Pentium III and Core Solo/Duo CPUs have an erratum
" Page with PAT set to WC while associated MTRR is UC may consolidate to UC "
which can result in WC setting in PAT to be ineffective. We will disable
PAT on such CPUs, so that we can continue to use MTRR WC setting.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agodevmem, x86: PAT Change /dev/mem mmap with O_SYNC to use UC_MINUS
venkatesh.pallipadi@intel.com [Wed, 20 Aug 2008 23:45:52 +0000 (16:45 -0700)]
devmem, x86: PAT Change /dev/mem mmap with O_SYNC to use UC_MINUS

All kernel mappings like ioremap(), etc uses UC_MINUS as the type. /dev/mem
mappings with /dev/mem being opened with O_SYNC however was using UC,
resulting in a conflict with /dev/mem mmap failing. This seems to be
affecting some apps (one being flashrom) which are using O_SYNC and which were
working before.

Switch /dev/mem with O_SYNC also to UC_MINUS.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: PAT proper tracking of set_memory_uc and friends
venkatesh.pallipadi@intel.com [Wed, 20 Aug 2008 23:45:51 +0000 (16:45 -0700)]
x86: PAT proper tracking of set_memory_uc and friends

Big thinko in pat memtype tracking code. reserve_memtype should be called
with physical address and not virtual address.

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>
16 years agoarch/x86/kernel/apm_32.c: remove duplicated #include
Huang Weiyi [Wed, 20 Aug 2008 23:43:07 +0000 (16:43 -0700)]
arch/x86/kernel/apm_32.c: remove duplicated #include

Removed duplicated include file <linux/smp_lock.h> in
arch/x86/kernel/apm_32.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
16 years agox86: fix BUG: unable to handle kernel paging request (numaq_tsc_disable)
Vegard Nossum [Wed, 20 Aug 2008 16:18:26 +0000 (18:18 +0200)]
x86: fix BUG: unable to handle kernel paging request (numaq_tsc_disable)

This section mismatch:

>> Seems to be a section mismatch; init_intel() is __cpuinit while
>> numaq_tsc_disable() is __init. Seems to be introduced in:
>>
>> commit 64898a8bad8c94ad7a4bd5cc86b66edfbb081f4a
>> Author: Yinghai Lu <yhlu.kernel@gmail.com>
>> Date:   Sat Jul 19 18:01:16 2008 -0700
>>
>>    x86: extend and use x86_quirks to clean up NUMAQ code
>
> Oops, I am wrong about numaq_tsc_disable() being __init. Still, I
> believe that Yinghai might be able to say what's really wrong :-)

Would lead to this crash:

  BUG: unable to handle kernel paging request at c08a45f0
  IP: [<c08a45f0>] numaq_tsc_disable+0x0/0x40

Fixed by the patch below.

Signed-off-by: Vegard Nossum <vegardno@ifi.uio.no>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: export pv_lock_ops non-GPL
Jeremy Fitzhardinge [Wed, 20 Aug 2008 18:31:07 +0000 (11:31 -0700)]
x86: export pv_lock_ops non-GPL

None of the spinlock API is exported GPL, so there's no reason for
pv_lock_ops to be.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: drago01 <drago01@gmail.com>
16 years agox86, mmiotrace: silence section mismatch warning - leave_uniprocessor
Marcin Slusarz [Wed, 20 Aug 2008 19:07:47 +0000 (21:07 +0200)]
x86, mmiotrace: silence section mismatch warning - leave_uniprocessor

WARNING: vmlinux.o(.text+0x180af): Section mismatch in reference from the function leave_uniprocessor() to the function .cpuinit.text:cpu_up()
The function leave_uniprocessor() references
the function __cpuinit cpu_up().
This is often because leave_uniprocessor lacks a __cpuinit
annotation or the annotation of cpu_up is wrong.

leave_uniprocessor calls cpu_up only when CONFIG_HOTPLUG_CPU is set,
so it can be safely annotated as __ref

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Pekka Paalanen <pq@iki.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Pekka Paalanen <pq@iki.fi>
16 years agoarch/x86/pci/irq.c: attempt to clean up code layout
Andrew Morton [Wed, 20 Aug 2008 23:43:02 +0000 (16:43 -0700)]
arch/x86/pci/irq.c: attempt to clean up code layout

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: use WARN() in arch/x86/kernel
Arjan van de Ven [Tue, 8 Jul 2008 16:51:56 +0000 (09:51 -0700)]
x86: use WARN() in arch/x86/kernel

Use WARN() instead of a printk+WARN_ON() pair; this way the message
becomes part of the warning section for better reporting/collection.
This also allowed the folding of some if()'s into the WARN()

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: akpm@linux-foundation.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: use WARN() in arch/x86/mm/ioremap.c
Arjan van de Ven [Tue, 8 Jul 2008 16:50:22 +0000 (09:50 -0700)]
x86: use WARN() in arch/x86/mm/ioremap.c

Use WARN() instead of a printk+WARN_ON() pair; this way the message
becomes part of the warning section for better reporting/collection.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: akpm@linux-foundation.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agowerror: fix pci calgary
David Howells [Mon, 18 Aug 2008 09:58:17 +0000 (11:58 +0200)]
werror: fix pci calgary

Fix an integer comparison always false warning in the PCI Calgary 64 driver.

A u8 is being compared to something that's 512 by default, resulting in the
following warning:

arch/x86/kernel/pci-calgary_64.c:1285: warning: comparison is always false due to limited range of data type

This was introduced by patch b34e90b8f0f30151349134f87b5dc6ef75a5218c.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix oprofile + hibernation badness
Andi Kleen [Tue, 19 Aug 2008 01:13:38 +0000 (03:13 +0200)]
x86: fix oprofile + hibernation badness

Vegard Nossum reported oprofile + hibernation problems:

> Now some warnings:
>
> ------------[ cut here ]------------
> WARNING: at /uio/arkimedes/s29/vegardno/git-working/linux-2.6/kernel/smp.c:328 s
> mp_call_function_mask+0x194/0x1a0()

The usual problem: the suspend function when interrupts are
already disabled calls smp_call_function which is not allowed with
interrupt off. But at this point all the other CPUs should be already
down anyways, so it should be enough to just drop that.

This patch should fix that problem at least by fixing cpu hotplug&
suspend support.

[ mingo@elte.hu: fixed 5 coding style errors. ]

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: another user of PTE_FLAGS_MASK
Jeremy Fitzhardinge [Tue, 19 Aug 2008 20:10:07 +0000 (13:10 -0700)]
x86: another user of PTE_FLAGS_MASK

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86, SGI UV: hardcode the TLB flush interrupt system vector
Cliff Wickman [Tue, 19 Aug 2008 17:51:59 +0000 (12:51 -0500)]
x86, SGI UV: hardcode the TLB flush interrupt system vector

The UV TLB shootdown mechanism needs a system interrupt vector.

Its vector had been hardcoded as 200, but needs to moved to the reserved
system vector range so that it does not collide with some device vector.

This is still temporary until dynamic system IRQ allocation is provided.
But it will be needed when real UV hardware becomes available and runs 2.6.27.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86_64: use save/loadsegment in ia32 compat
Jeremy Fitzhardinge [Tue, 19 Aug 2008 20:04:19 +0000 (13:04 -0700)]
x86_64: use save/loadsegment in ia32 compat

Use savesegment and loadsegment consistently in ia32 compat code.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix Xorg startup/shutdown slowdown with PAT
Venki Pallipadi [Tue, 19 Aug 2008 23:28:01 +0000 (16:28 -0700)]
x86: fix Xorg startup/shutdown slowdown with PAT

Rene Herman reported significant Xorg startup/shutdown slowdown due
to PAT. It turns out that the memtype list has thousands of entries.

Add cached_entry to list add routine, in order to speed up the
lookup for sequential reserve_memtype calls.

Reported-by: Rene Herman <rene.herman@keyaccess.nl>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86, cleanup: use X86_CR4_PGE in x86/power/hibernate_asm_32.S
Uros Bizjak [Wed, 20 Aug 2008 08:44:47 +0000 (10:44 +0200)]
x86, cleanup: use X86_CR4_PGE in x86/power/hibernate_asm_32.S

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agoMerge branch 'linus' into x86/cleanups
Ingo Molnar [Wed, 20 Aug 2008 09:52:15 +0000 (11:52 +0200)]
Merge branch 'linus' into x86/cleanups

16 years agox86: fix "kernel won't boot on a Cyrix MediaGXm (Geode)"
Samuel Sieb [Thu, 7 Aug 2008 05:06:29 +0000 (22:06 -0700)]
x86: fix "kernel won't boot on a Cyrix MediaGXm (Geode)"

Cyrix MediaGXm/Cx5530 Unicorn Revision 1.19.3B has stopped
booting starting at v2.6.22.

The reason is this commit:

> commit f25f64ed5bd3c2932493681bdfdb483ea707da0a
> Author: Juergen Beisert <juergen@kreuzholzen.de>
> Date:   Sun Jul 22 11:12:38 2007 +0200
>
>     x86: Replace NSC/Cyrix specific chipset access macros by inlined functions.

this commit activated a macro which was dormant before due to (buggy)
macro side-effects.

I've looked through various datasheets and found that the GXm and GXLV
Geode processors don't have an incrementor.

Remove the incrementor setup entirely.  As the incrementor value
differs according to clock speed and we would hope that the BIOS
configures it correctly, it is probably the right solution.

Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: <asm/asm.h> consistency cleanups
H. Peter Anvin [Tue, 19 Aug 2008 01:13:33 +0000 (18:13 -0700)]
x86: <asm/asm.h> consistency cleanups

Rename _ASM_MOV_UL to _ASM_MOV for consistency with other _ASM_
instructions (_ASM_ADD, _ASM_SUB and so on.)

Add ASM_SP, _ASM_BP, _ASM_SI, and _ASM_DI for consistency with
_ASM_[ABCD]X.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
16 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
Linus Torvalds [Tue, 19 Aug 2008 00:43:21 +0000 (17:43 -0700)]
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] use generic compat_old_sys_readdir
  [IA64] pci_acpi_scan_root cleanup
  [IA64] Shrink shadow_flush_counts to a short array to save 8k of per_cpu area.
  [IA64] Remove sn2_defconfig.

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Tue, 19 Aug 2008 00:40:13 +0000 (17:40 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  ata: add missing ATA_* defines
  ata: add missing ATA_CMD_* defines
  ata: add missing ATA_ID_* defines (take 2)
  sgiioc4: fixup message on resource allocation failure
  ide-cd: use bcd2bin/bin2bcd
  cdrom: handle TOC
  gdrom: add dummy audio_ioctl handler
  viocd: add dummy audio ioctl handler
  cleanup powerpc/include/asm/ide.h
  drivers/ide/pci/: use __devexit_p()

16 years agox86 iommu: remove unneeded parenthesis
Jiri Kosina [Tue, 19 Aug 2008 00:13:55 +0000 (02:13 +0200)]
x86 iommu: remove unneeded parenthesis

The parenthesis in __iommu_queue_command() are not needed when assigning
into 'target' variable.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years ago[IA64] use generic compat_old_sys_readdir
Christoph Hellwig [Sat, 16 Aug 2008 17:50:28 +0000 (19:50 +0200)]
[IA64] use generic compat_old_sys_readdir

Switch ia64 to the generic compat_sys_old_readdir which is identical
except for slightly better error handling.  Also remove sys32_getdents
which already isn't wired up to the syscall table anymore in favour of
compat_sys_getdents.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] pci_acpi_scan_root cleanup
Luck, Tony [Fri, 15 Aug 2008 22:37:48 +0000 (15:37 -0700)]
[IA64] pci_acpi_scan_root cleanup

The code walks all the acpi _CRS methods to see how many windows
to allocate.  It then scans them all again to insert_resource()
for each *even if the first scan found that there were none*.

Move the second scan inside the "if (windows)" clause.

Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] Shrink shadow_flush_counts to a short array to save 8k of per_cpu area.
Robin Holt [Fri, 15 Aug 2008 14:21:24 +0000 (09:21 -0500)]
[IA64] Shrink shadow_flush_counts to a short array to save 8k of per_cpu area.

Making allmodconfig will break the current build.  This patch shrinks
the per_cpu__shadow_flush_counts from 16k to 8k which frees enough space
to allow allmodconfig to successfully complete.

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=11338

Signed-off-by: Robin Holt <holt@sgi.com>
Acked-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] Remove sn2_defconfig.
Robin Holt [Fri, 15 Aug 2008 09:56:01 +0000 (04:56 -0500)]
[IA64] Remove sn2_defconfig.

Not really a patch as much as a remove this file request.  Now that
generic_defconfig supports all the configurations SGI currently supports
and has NR_CPUS and NR_NODES at our largest configurations, we have no
reason to maintain the extra defconfig file.

Signed-off-by: Robin Holt <holt@sgi.com>
Acked-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years agoata: add missing ATA_* defines
Bartlomiej Zolnierkiewicz [Mon, 18 Aug 2008 19:40:05 +0000 (21:40 +0200)]
ata: add missing ATA_* defines

Add missing ATA_* defines to <linux/ata.h>.  Also add
ATAPI_{LFS,EOM,ILI,IO,CODE} defines while at it.

Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoata: add missing ATA_CMD_* defines
Bartlomiej Zolnierkiewicz [Mon, 18 Aug 2008 19:40:05 +0000 (21:40 +0200)]
ata: add missing ATA_CMD_* defines

Add missing ATA_CMD_* defines to <linux/ata.h>.  Also add
ATA_EXABYTE_ENABLE_NEST, SETFEATURES_AAM_* and ATA_SMART_*
defines while at it.

Partially based on earlier work by Chris Wedgwood.

Acked-by: Chris Wedgwood <cw@f00f.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoata: add missing ATA_ID_* defines (take 2)
Bartlomiej Zolnierkiewicz [Mon, 18 Aug 2008 19:40:05 +0000 (21:40 +0200)]
ata: add missing ATA_ID_* defines (take 2)

Add missing ATA_ID_* defines and update {ata,atapi}_*()
inlines accordingly.  The currently unused defines are
needed for the forthcoming drivers/ide/ changes.

v2:
Add ATA_ID_SPG.

Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agosgiioc4: fixup message on resource allocation failure
Bartlomiej Zolnierkiewicz [Mon, 18 Aug 2008 19:40:04 +0000 (21:40 +0200)]
sgiioc4: fixup message on resource allocation failure

There can be more than one sgiioc4 card in the system so print
also PCI device name on resource allocation failure (so we know
which one is the problematic one).

Reported-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-cd: use bcd2bin/bin2bcd
Adrian Bunk [Mon, 18 Aug 2008 19:40:04 +0000 (21:40 +0200)]
ide-cd: use bcd2bin/bin2bcd

Change ide-cd to use the new bcd2bin/bin2bcd functions instead of the
obsolete BCD2BIN/BIN2BCD macros.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agocdrom: handle TOC
Alexander Inyukhin [Mon, 18 Aug 2008 19:40:04 +0000 (21:40 +0200)]
cdrom: handle TOC

This patch should fix TOC handling for cdroms that can not play audio.  It
extends commit af744e3294d09d706c4eae26cffaaa68a8d40337 ("cdrom: don't
check CDC_PLAY_AUDIO in cdrom_count_tracks()") with a safety check and
non-audio ioctls support.

Since CDC_PLAY_AUDIO flag was used not only to check ability to play audio
but also to ensure that audio_ioctl was not NULL, all TOC-related
operations had to use it.

As far as I understand, now audio_ioctl is never NULL, so a sanity check
during device registration should be sufficient.

It was tested on Optiarc AD7203A device, that has no ability to play
audio.

Cc: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Borislav Petkov <petkovbb@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[bart: remove now unneeded ->audio_ioctl check (noticed by Borislav)]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agogdrom: add dummy audio_ioctl handler
Borislav Petkov [Mon, 18 Aug 2008 19:40:04 +0000 (21:40 +0200)]
gdrom: add dummy audio_ioctl handler

Make sure audio_ioctl is always defined even if being a dummy function
since the cdrom_ioctl interface assumes its existence and we don't
want to BUG on null ptr on some ioctls like, e.g. CDROMREADTOCENTRY,
CDROMREADTOCHDR etc. when we fix CDC_PLAY_AUDIO checking in cdrom.c.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Acked-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoviocd: add dummy audio ioctl handler
Borislav Petkov [Mon, 18 Aug 2008 19:40:03 +0000 (21:40 +0200)]
viocd: add dummy audio ioctl handler

Make sure audio_ioctl is always defined even if being a dummy function
since the cdrom_ioctl interface assumes its existence and we don't
want to BUG on null ptr on some ioctls like, e.g. CDROMREADTOCENTRY,
CDROMREADTOCHDR etc. when we fix CDC_PLAY_AUDIO checking in cdrom.c.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agocleanup powerpc/include/asm/ide.h
Adrian Bunk [Mon, 18 Aug 2008 19:40:03 +0000 (21:40 +0200)]
cleanup powerpc/include/asm/ide.h

This patch removes code that became unused through IDE changes and the
arch/ppc/ removal.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agodrivers/ide/pci/: use __devexit_p()
Adrian Bunk [Mon, 18 Aug 2008 19:40:03 +0000 (21:40 +0200)]
drivers/ide/pci/: use __devexit_p()

This patch adds missing __devexit_p's.

Reported-by: Russell King <rmk+lkml@arm.linux.org.uk>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 18 Aug 2008 19:10:14 +0000 (12:10 -0700)]
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: fix build warnings in real mode code
  x86, calgary: fix section mismatch warning - get_tce_space_from_tar
  x86: silence section mismatch warning - get_local_pda
  x86, percpu: silence section mismatch warnings related to EARLY_PER_CPU variables
  x86: fix i486 suspend to disk CR4 oops
  x86: mpparse.c: fix section mismatch warning
  x86: mmconf: fix section mismatch warning
  x86: fix MP_processor_info section mismatch warning
  x86, tsc: fix section mismatch warning
  x86: correct register constraints for 64-bit atomic operations

16 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 18 Aug 2008 19:09:56 +0000 (12:09 -0700)]
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  lockdep: fix spurious 'inconsistent lock state' warning

16 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
Linus Torvalds [Mon, 18 Aug 2008 19:05:01 +0000 (12:05 -0700)]
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: Use generic compat_sys_old_readdir
  powerpc/kexec: Fix up KEXEC_CONTROL_CODE_SIZE missed during conversion
  powerpc: Remove dead module_find_bug code
  powerpc: Add CMO enabled flag and paging space data to lparcfg
  powerpc: Fix CMM page loaning on 64k page kernel with 4k hardware pages
  powerpc: Make CMO paging space pool ID and page size available
  powerpc: Fix lockdep IRQ tracing bug
  powerpc: Fix TLB invalidation on boot on 32-bit
  powerpc: Fix loss of vdso on fork on 32-bit

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Mon, 18 Aug 2008 19:03:23 +0000 (12:03 -0700)]
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:
  lmb: Fix reserved region handling in lmb_enforce_memory_limit().
  sparc64: Fix cmdline_memory_size handling bugs.
  sparc64: Fix overshoot in nid_range().

16 years agolockdep: fix spurious 'inconsistent lock state' warning
Dmitry Baryshkov [Mon, 18 Aug 2008 00:26:37 +0000 (04:26 +0400)]
lockdep: fix spurious 'inconsistent lock state' warning

Since f82b217e3513fe3af342c0f3ee1494e86250c21c lockdep can output spurious
warnings related to hwirqs due to hardirq_off shrinkage from int to bit-sized
flag. Guard it with double negation to fix the warning.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix build warnings in real mode code
Andi Kleen [Mon, 18 Aug 2008 07:06:01 +0000 (09:06 +0200)]
x86: fix build warnings in real mode code

This recent patch

commit c3965bd15118742d72b4bc1a290d37b3f081eb98
Author: Paul Jackson <pj@sgi.com>
Date:   Wed May 14 08:15:34 2008 -0700

    x86 boot: proper use of ARRAY_SIZE instead of repeated E820MAX constant

caused these new warnings during a normal build:

In file included from linux-2.6/arch/x86/boot/memory.c:17:
linux-2.6/include/linux/log2.h: In function '__ilog2_u32':
linux-2.6/include/linux/log2.h:34: warning: implicit declaration of function 'fls'
linux-2.6/include/linux/log2.h: In function '__ilog2_u64':
linux-2.6/include/linux/log2.h:42: warning: implicit declaration of function 'fls64'
linux-2.6/include/linux/log2.h: In function '__roundup_pow_of_two ':
linux-2.6/include/linux/log2.h:63: warning: implicit declaration of function 'fls_long'

I tried to fix them in log2.h, but it's difficult because the real mode
environment is completely different from a normal kernel environment. Instead
define an own ARRAY_SIZE macro in boot.h, similar to the other private
macros there.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86, calgary: fix section mismatch warning - get_tce_space_from_tar
Marcin Slusarz [Sun, 17 Aug 2008 15:50:52 +0000 (17:50 +0200)]
x86, calgary: fix section mismatch warning - get_tce_space_from_tar

WARNING: vmlinux.o(.text+0x27032): Section mismatch in reference from the function get_tce_space_from_tar() to the function .init.text:calgary_bus_has_devices()
The function get_tce_space_from_tar() references
the function __init calgary_bus_has_devices().
This is often because get_tce_space_from_tar lacks a __init
annotation or the annotation of calgary_bus_has_devices is wrong.

get_tce_space_from_tar is called only from __init function (calgary_init)
and calls __init function (calgary_bus_has_devices).
So annotate it properly.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Chandru Siddalingappa <chandru@in.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: silence section mismatch warning - get_local_pda
Marcin Slusarz [Sun, 17 Aug 2008 15:50:51 +0000 (17:50 +0200)]
x86: silence section mismatch warning - get_local_pda

Take out part of get_local_pda referencing __init function (free_bootmem)
to new (static) function marked as __ref. It's safe to do because free_bootmem
is called before __init sections are dropped.

WARNING: vmlinux.o(.cpuinit.text+0x3cd7): Section mismatch in reference from the function get_local_pda() to the function .init.text:free_bootmem()
The function __cpuinit get_local_pda() references
a function __init free_bootmem().
If free_bootmem is only used by get_local_pda then
annotate free_bootmem with a matching annotation.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86, percpu: silence section mismatch warnings related to EARLY_PER_CPU variables
Marcin Slusarz [Sun, 17 Aug 2008 15:50:50 +0000 (17:50 +0200)]
x86, percpu: silence section mismatch warnings related to EARLY_PER_CPU variables

Quoting Mike Travis in "x86: cleanup early per cpu variables/accesses v4"
(23ca4bba3e20c6c3cb11c1bb0ab4770b724d39ac):

    The DEFINE macro defines the per_cpu variable as well as the early
    map and pointer.  It also initializes the per_cpu variable and map
    elements to "_initvalue".  The early_* macros provide access to
    the initial map (usually setup during system init) and the early
    pointer.  This pointer is initialized to point to the early map
    but is then NULL'ed when the actual per_cpu areas are setup.  After
    that the per_cpu variable is the correct access to the variable.

As these variables are NULL'ed before __init sections are dropped
(in setup_per_cpu_maps), they can be safely annotated as __ref.

This change silences following section mismatch warnings:

WARNING: vmlinux.o(.data+0x46c0): Section mismatch in reference from the variable x86_cpu_to_apicid_early_ptr to the variable .init.data:x86_cpu_to_apicid_early_map
The variable x86_cpu_to_apicid_early_ptr references
the variable __initdata x86_cpu_to_apicid_early_map
If the reference is valid then annotate the
variable with __init* (see linux/init.h) or name the variable:
*driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console,

WARNING: vmlinux.o(.data+0x46c8): Section mismatch in reference from the variable x86_bios_cpu_apicid_early_ptr to the variable .init.data:x86_bios_cpu_apicid_early_map
The variable x86_bios_cpu_apicid_early_ptr references
the variable __initdata x86_bios_cpu_apicid_early_map
If the reference is valid then annotate the
variable with __init* (see linux/init.h) or name the variable:
*driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console,

WARNING: vmlinux.o(.data+0x46d0): Section mismatch in reference from the variable x86_cpu_to_node_map_early_ptr to the variable .init.data:x86_cpu_to_node_map_early_map
The variable x86_cpu_to_node_map_early_ptr references
the variable __initdata x86_cpu_to_node_map_early_map
If the reference is valid then annotate the
variable with __init* (see linux/init.h) or name the variable:
*driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console,

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix i486 suspend to disk CR4 oops
David Fries [Mon, 18 Aug 2008 04:03:40 +0000 (23:03 -0500)]
x86: fix i486 suspend to disk CR4 oops

arch/x86/power/cpu_32.c __save_processor_state calls read_cr4()
only a i486 CPU doesn't have the CR4 register.  Trying to read it
produces an invalid opcode oops during suspend to disk.

Use the safe rc4 reading op instead. If the value to be written is
zero the write is skipped.

arch/x86/power/hibernate_asm_32.S
done: swapped the use of %eax and %ecx to use jecxz for
the zero test and jump over store to %cr4.
restore_image: s/%ecx/%eax/ to be consistent with done:

In addition to __save_processor_state, acpi_save_state_mem,
efi_call_phys_prelog, and efi_call_phys_epilog had checks added
(acpi restore was in assembly and already had a check for
non-zero).  There were other reads and writes of CR4, but MCE and
virtualization shouldn't be executed on a i486 anyway.

Signed-off-by: David Fries <david@fries.net>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: mpparse.c: fix section mismatch warning
Marcin Slusarz [Sun, 10 Aug 2008 22:09:38 +0000 (00:09 +0200)]
x86: mpparse.c: fix section mismatch warning

WARNING: vmlinux.o(.text+0x118f7): Section mismatch in reference from the function construct_ioapic_table() to the function .init.text:MP_bus_info()
The function construct_ioapic_table() references
the function __init MP_bus_info().
This is often because construct_ioapic_table lacks a __init
annotation or the annotation of MP_bus_info is wrong.

construct_ioapic_table is called only from construct_default_ISA_mptable which is __init

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: mmconf: fix section mismatch warning
Marcin Slusarz [Sun, 10 Aug 2008 22:11:13 +0000 (00:11 +0200)]
x86: mmconf: fix section mismatch warning

WARNING: arch/x86/kernel/built-in.o(.cpuinit.text+0x1591): Section mismatch in reference from the function init_amd() to the function .init.text:check_enable_amd_mmconf_dmi()
The function __cpuinit init_amd() references
a function __init check_enable_amd_mmconf_dmi().
If check_enable_amd_mmconf_dmi is only used by init_amd then
annotate check_enable_amd_mmconf_dmi with a matching annotation.

check_enable_amd_mmconf_dmi is only called from init_amd which is __cpuinit

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix MP_processor_info section mismatch warning
Marcin Slusarz [Sun, 10 Aug 2008 22:12:37 +0000 (00:12 +0200)]
x86: fix MP_processor_info section mismatch warning

WARNING: arch/x86/kernel/built-in.o(.cpuinit.text+0x1fe7): Section mismatch in reference from the function MP_processor_info() to the variable .init.data:x86_quirks
The function __cpuinit MP_processor_info() references
a variable __initdata x86_quirks.
If x86_quirks is only used by MP_processor_info then
annotate x86_quirks with a matching annotation.

MP_processor_info uses x86_quirks which is __init and is used only from
smp_read_mpc and construct_default_ISA_mptable which are __init

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86, tsc: fix section mismatch warning
Marcin Slusarz [Sun, 10 Aug 2008 22:07:44 +0000 (00:07 +0200)]
x86, tsc: fix section mismatch warning

WARNING: vmlinux.o(.text+0x7950): Section mismatch in reference from the function native_calibrate_tsc() to the function .init.text:tsc_read_refs()
The function native_calibrate_tsc() references
the function __init tsc_read_refs().
This is often because native_calibrate_tsc lacks a __init
annotation or the annotation of tsc_read_refs is wrong.

tsc_read_refs is called from native_calibrate_tsc which is not __init
and native_calibrate_tsc cannot be marked __init

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: correct register constraints for 64-bit atomic operations
Mathieu Desnoyers [Sat, 16 Aug 2008 07:39:26 +0000 (03:39 -0400)]
x86: correct register constraints for 64-bit atomic operations

x86_64 add/sub atomic ops does not seems to accept integer values bigger
than 32 bits as immediates. Intel's add/sub documentation specifies they
have to be passed as registers.

The only operations in the x86-64 architecture which accept arbitrary
64-bit immediates is "movq" to any register; similarly, the only
operation which accept arbitrary 64-bit displacement is "movabs" to or
from al/ax/eax/rax.

http://gcc.gnu.org/onlinedocs/gcc-4.3.0/gcc/Machine-Constraints.html

states :

e
    32-bit signed integer constant, or a symbolic reference known to fit
    that range (for immediate operands in sign-extending x86-64
    instructions).
Z
    32-bit unsigned integer constant, or a symbolic reference known to
    fit that range (for immediate operands in zero-extending x86-64
    instructions).

Since add/sub does sign extension, using the "e" constraint seems appropriate.

It applies to 2.6.27-rc, 2.6.26, 2.6.25...

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agopowerpc: Use generic compat_sys_old_readdir
Christoph Hellwig [Sat, 16 Aug 2008 17:57:30 +0000 (03:57 +1000)]
powerpc: Use generic compat_sys_old_readdir

Use the generic compat_sys_old_readdir instead of the powerpc one which
is almost the same except for the almost complete lack of error
handling.

Note that we can't just use SYSCALL() in systbl.h because the native
syscall is named old_readdir, not sys_old_readdir.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agopowerpc/kexec: Fix up KEXEC_CONTROL_CODE_SIZE missed during conversion
Paul Collins [Sat, 16 Aug 2008 08:55:54 +0000 (18:55 +1000)]
powerpc/kexec: Fix up KEXEC_CONTROL_CODE_SIZE missed during conversion

Commit 163f6876f5c3ff8215e900b93779e960a56b3694 missed one, resulting in
the following compile error:

  AS      arch/powerpc/kernel/misc_32.o
arch/powerpc/kernel/misc_32.S: Assembler messages:
arch/powerpc/kernel/misc_32.S:902: Error: unsupported relocation against KEXEC_CONTROL_CODE_SIZE
make[2]: *** [arch/powerpc/kernel/misc_32.o] Error 1
make[1]: *** [arch/powerpc/kernel] Error 2
make: *** [vmlinux] Error 2

I grepped arch/ and found no further instances.

Signed-off-by: Paul Collins <paul@ondioline.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agopowerpc: Remove dead module_find_bug code
Steven Rostedt [Sat, 16 Aug 2008 03:56:44 +0000 (13:56 +1000)]
powerpc: Remove dead module_find_bug code

Doing some various "make randconfig", I came across an error when
CONFIG_BUG was not set:

arch/powerpc/kernel/module.c: In function 'module_find_bug':
arch/powerpc/kernel/module.c:111: error: increment of pointer to unknown structure
arch/powerpc/kernel/module.c:111: error: arithmetic on pointer to an incomplete type
arch/powerpc/kernel/module.c:112: error: dereferencing pointer to incomplete type

Looking further into this, I found that module_find_bug, defined in
powerpc arch code, is not called anywhere, so this just removes it.

There is a static module_find_bug in lib/bug.c but that is a separate issue.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agopowerpc: Add CMO enabled flag and paging space data to lparcfg
Robert Jennings [Fri, 15 Aug 2008 19:10:18 +0000 (05:10 +1000)]
powerpc: Add CMO enabled flag and paging space data to lparcfg

Add a field in lparcfg output to indicate whether the kernel is
running on a dedicated or shared memory lpar.  Added fields to show
the paging space pool IDs and the CMO page size.

Submitted-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agopowerpc: Fix CMM page loaning on 64k page kernel with 4k hardware pages
Brian King [Fri, 15 Aug 2008 19:09:33 +0000 (05:09 +1000)]
powerpc: Fix CMM page loaning on 64k page kernel with 4k hardware pages

If the firmware page size used for collaborative memory overcommit
is 4k, but the kernel is using 64k pages, the page loaning is currently
broken as it only marks the first 4k page of each 64k page as loaned.
This fixes this to iterate through each 4k page and mark them all as
loaned/active.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agopowerpc: Make CMO paging space pool ID and page size available
Robert Jennings [Fri, 15 Aug 2008 19:07:31 +0000 (05:07 +1000)]
powerpc: Make CMO paging space pool ID and page size available

During platform setup, save off the primary/secondary paging space
pool IDs and the page size.  Added accessors in hvcall.h for these
variables.  This is needed for a subsequent fix.

Submitted-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agopowerpc: Fix lockdep IRQ tracing bug
Benjamin Herrenschmidt [Fri, 15 Aug 2008 07:11:31 +0000 (17:11 +1000)]
powerpc: Fix lockdep IRQ tracing bug

A small bogon sneaked into the ppc64 lockdep support.  A test is
branching slightly off causing a clobbered register value to
overwrite the irq state under some circumstances.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agopowerpc: Fix TLB invalidation on boot on 32-bit
Rocky Craig [Thu, 14 Aug 2008 13:11:54 +0000 (23:11 +1000)]
powerpc: Fix TLB invalidation on boot on 32-bit

The intent of "flush_tlbs" is to invalidate all TLB entries by doing a
TLB invalidate instruction for all pages in the address range 0 to
0x00400000.  A loop counter is set up at the high value and
decremented by page size.  However, the loop is only done once as the
sense of the conditional branch at the loop end does not match the
setup/decrement.  This fixes it to do the whole range by correcting
the branch condition.

Signed-off-by: Rocky Craig <rocky.craig@hp.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agopowerpc: Fix loss of vdso on fork on 32-bit
Benjamin Herrenschmidt [Tue, 12 Aug 2008 07:03:26 +0000 (17:03 +1000)]
powerpc: Fix loss of vdso on fork on 32-bit

When we fork, init_new_context() improperly resets the vdso_base
of the new context to 0.  That means that the new process loses
access to the vdso for signal trampolines.

The initialization should be unnecessary anyway as the context
on a fresh mm should be 0 in the first place and binfmt_elf
will initialize that value for a newly loaded process.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
Linus Torvalds [Sun, 17 Aug 2008 20:01:30 +0000 (13:01 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  sdricoh_cs: removed unused #include <version.h>
  s3cmci: attach get_cd host ops
  s3cmci: fix sparse errors from non-exported functions

16 years agosdricoh_cs: removed unused #include <version.h>
Huang Weiyi [Sat, 16 Aug 2008 23:51:10 +0000 (07:51 +0800)]
sdricoh_cs: removed unused #include <version.h>

The drivers below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
  drivers/mmc/host/sdricoh_cs.c

This patch removes the said #include <version.h>.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
16 years agos3cmci: attach get_cd host ops
Ben Dooks [Tue, 12 Aug 2008 08:24:50 +0000 (09:24 +0100)]
s3cmci: attach get_cd host ops

Attach the routine to get_cd to allow the MMC core to find out whether
there is a card present or not without the tedious process of trying to
send commands to the card or not.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
16 years agos3cmci: fix sparse errors from non-exported functions
Ben Dooks [Fri, 8 Aug 2008 09:55:41 +0000 (10:55 +0100)]
s3cmci: fix sparse errors from non-exported functions

Fix the following sparse errors by making the functions
static and fixing the check for host->base.

598:6: warning: symbol 's3cmci_dma_done_callback' was not declared. Should it be static?
744:6: warning: symbol 's3cmci_dma_setup' was not declared. Should it be static?
1209:20: warning: Using plain integer as NULL pointer

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Sun, 17 Aug 2008 16:20:33 +0000 (09:20 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Fix capture source widgets on ALC codecs

16 years agosecurity.h: fix build failure
Alexander Beregalov [Sun, 17 Aug 2008 01:34:20 +0000 (05:34 +0400)]
security.h: fix build failure

security.h: fix build failure

include/linux/security.h: In function 'security_ptrace_traceme':
include/linux/security.h:1760: error: 'parent' undeclared (first use in this function)

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: James Morris <jmorris@namei.org>
16 years agoALSA: hda - Fix capture source widgets on ALC codecs
Takashi Iwai [Fri, 15 Aug 2008 14:46:42 +0000 (16:46 +0200)]
ALSA: hda - Fix capture source widgets on ALC codecs

On some Realtek codecs like ALC882 or ALC883, the capture source is
no mux but sum widget.  We have to initialize all channels properly
for this type, otherwise noises may come in from the unused route.

The patch assures to mute unused routes, and unmute the currently
selected route.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Daniel J Blueman <daniel.blueman@gmail.com>
16 years agoremoved unused #include <version.h>
Huang Weiyi [Sat, 16 Aug 2008 23:51:05 +0000 (07:51 +0800)]
removed unused #include <version.h>

The drivers below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
  drivers/char/pcmcia/ipwireless/tty.c
  drivers/char/synclink_gt.c
  drivers/char/xilinx_hwicap/xilinx_hwicap.c

This patch removes the said #include <version.h>.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 17 Aug 2008 00:16:07 +0000 (17:16 -0700)]
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  lockdep: fix build if CONFIG_PROVE_LOCKING not defined
  lockdep: use WARN() in kernel/lockdep.c
  lockdep: spin_lock_nest_lock(), checkpatch fixes
  lockdep: build fix

16 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 17 Aug 2008 00:15:32 +0000 (17:15 -0700)]
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: scale sysctl_sched_shares_ratelimit with nr_cpus
  sched: fix rt-bandwidth hotplug race
  sched: fix the race between walk_tg_tree and sched_create_group

16 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 17 Aug 2008 00:14:07 +0000 (17:14 -0700)]
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: (32 commits)
  x86: add MAP_STACK mmap flag
  x86: fix section mismatch warning - spp_getpage()
  x86: change init_gdt to update the gdt via write_gdt, rather than a direct write.
  x86-64: fix overlap of modules and fixmap areas
  x86, geode-mfgpt: check IRQ before using MFGPT as clocksource
  x86, acpi: cleanup, temp_stack is used only when CONFIG_SMP is set
  x86: fix spin_is_contended()
  x86, nmi: clean UP NMI watchdog failure message
  x86, NMI: fix watchdog failure message
  x86: fix /proc/meminfo DirectMap
  x86: fix readb() et al compile error with gcc-3.2.3
  arch/x86/Kconfig: clean up, experimental adjustement
  x86: invalidate caches before going into suspend
  x86, perfctr: don't use CCCR_OVF_PMI1 on Pentium 4Ds
  x86, AMD IOMMU: initialize dma_ops after sysfs registration
  x86m AMD IOMMU: cleanup: replace LOW_U32 macro with generic lower_32_bits
  x86, AMD IOMMU: initialize device table properly
  x86, AMD IOMMU: use status bit instead of memory write-back for completion wait
  x86: silence mmconfig printk
  x86, msr: fix NULL pointer deref due to msr_open on nonexistent CPUs
  ...

16 years agoMove sysctl check into debugging section and don't make it default y
Andi Kleen [Sat, 16 Aug 2008 05:53:05 +0000 (07:53 +0200)]
Move sysctl check into debugging section and don't make it default y

I noticed that sysctl_check.o was the largest object file in
a allnoconfig build in kernel/*.

  36243       0       0   36243    8d93 kernel/sysctl_check.o

This is because it was default y and && EMBEDDED. But I don't
really see a need for a non kernel developer to have their
sysctls checked all the time.

So move the Kconfig into the kernel debugging section and
also drop the default y and the EMBEDDED check.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Sat, 16 Aug 2008 23:48:45 +0000 (16:48 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm: (38 commits)
  [ARM] 5191/1: ARM: remove CVS keywords
  [ARM] pxafb: fix the warning of incorrect lccr when lcd_conn is specified
  [ARM] pxafb: add flag to specify output format on LDD pins when base is RGBT16
  [ARM] pxafb: fix the incorrect configuration of GPIO77 as ACBIAS for TFT LCD
  [ARM] 5198/1: PalmTX: PCMCIA fixes
  [ARM] Fix a pile of broken watchdog drivers
  [ARM] update mach-types
  [ARM] 5196/1: fix inline asm constraints for preload
  [ARM] 5194/1: update .gitignore
  [ARM] add proc-macros.S include to proc-arm940 and proc-arm946
  [ARM] 5192/1: ARM TLB: add v7wbi_{possible,always}_flags to {possible,always}_tlb_flags
  [ARM] 5193/1: Wire up missing syscalls
  [ARM] traps: don't call undef hook functions with spinlock held
  [ARM] 5183/2: Provide Poodle LoCoMo GPIO names
  [ARM] dma-mapping: provide sync_range APIs
  [ARM] dma-mapping: improve type-safeness of DMA translations
  [ARM] Kirkwood: instantiate the orion_spi driver in the platform code
  [ARM] prevent crashing when too much RAM installed
  [ARM] Kirkwood: Instantiate mv_xor driver
  [ARM] Orion: Instantiate mv_xor driver for 5182
  ...

16 years agoFix header export of videodev2.h, ivtv.h, ivtvfb.h
David Woodhouse [Sat, 16 Aug 2008 10:55:04 +0000 (11:55 +0100)]
Fix header export of videodev2.h, ivtv.h, ivtvfb.h

The exported copy of videodev2.h contains this line:

#define #include <sys/time.h>

This is because for some reason it defines __user for itself -- despite
the fact that we remove all instances of __user when exporting headers.
_All_ pointers in userspace are user pointers. Fix it by removing the
unnecessary '#define __user' from the file.

The new headers ivtv.h and ivtvfb.h would have the same problem... if
whoever put them there had actually remembered to add them to the Kbuild
file while he was at it. Fix those too, and export them as was
presumably intended.

Note that includes of <linux/compiler.h> are also stripped by the header
export process, so those don't need to be conditional.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomm: VM_flags comment fixes
Hugh Dickins [Sat, 16 Aug 2008 10:07:21 +0000 (11:07 +0100)]
mm: VM_flags comment fixes

Try to comment away a little of the confusion between mm's vm_area_struct
vm_flags and vmalloc's vm_struct flags: based on an idea by Ulrich Drepper.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years ago[ARM] 5191/1: ARM: remove CVS keywords
Adrian Bunk [Sun, 10 Aug 2008 14:25:55 +0000 (15:25 +0100)]
[ARM] 5191/1: ARM: remove CVS keywords

This patch removes CVS keywords that weren't updated for a long time.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] pxafb: fix the warning of incorrect lccr when lcd_conn is specified
Eric Miao [Sat, 16 Aug 2008 07:50:51 +0000 (03:50 -0400)]
[ARM] pxafb: fix the warning of incorrect lccr when lcd_conn is specified

The newly introduced "lcd_conn" field for connected LCD panel type will
cause the original code to generate the warnings of incorrect lccr*.
This is unnecessary since well encoded LCD_* flags will not generate
incorrect combinition of lccr* bits. Skip the check if "lcd_conn" is
specified.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] pxafb: add flag to specify output format on LDD pins when base is RGBT16
Eric Miao [Fri, 15 Aug 2008 06:50:44 +0000 (02:50 -0400)]
[ARM] pxafb: add flag to specify output format on LDD pins when base is RGBT16

Another fix of inconsistent shift of the LCD_BIAS_ACTIVE_* and
LCD_PCLK_EDGE_* is also included.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] pxafb: fix the incorrect configuration of GPIO77 as ACBIAS for TFT LCD
Eric Miao [Sat, 16 Aug 2008 07:59:11 +0000 (03:59 -0400)]
[ARM] pxafb: fix the incorrect configuration of GPIO77 as ACBIAS for TFT LCD

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Tested-by: Alex Osborne <ato@meshy.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] 5198/1: PalmTX: PCMCIA fixes
Marek Vašut [Sat, 16 Aug 2008 14:34:11 +0000 (15:34 +0100)]
[ARM] 5198/1: PalmTX: PCMCIA fixes

Fix GPIO handling in the PCMCIA driver.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] Fix a pile of broken watchdog drivers
Adrian Bunk [Sun, 10 Aug 2008 11:33:08 +0000 (12:33 +0100)]
[ARM] Fix a pile of broken watchdog drivers

These patches from Adrian fix:
- ixp4xx_wdt: 20d35f3e50ea7e573f9568b9fce4e98523aaee5d
  CC      drivers/watchdog/ixp4xx_wdt.o
ixp4xx_wdt.c:32: error: expected '=', ',', ';', 'asm' or '__attribute__'
ixp4xx_wdt.c: In function 'wdt_enable':
ixp4xx_wdt.c:41: error: 'wdt_lock' undeclared (first use in this
ixp4xx_wdt.c:41: error: (Each undeclared identifier is reported only
ixp4xx_wdt.c:41: error: for each function it appears in.)
ixp4xx_wdt.c: In function 'wdt_disable':
ixp4xx_wdt.c:52: error: 'wdt_lock' undeclared (first use in this
ixp4xx_wdt.c: In function 'ixp4xx_wdt_init':
ixp4xx_wdt.c:186: error: 'wdt_lock' undeclared (first use in this
make[3]: *** [drivers/watchdog/ixp4xx_wdt.o] Error 1

- at91rm9200_wdt: 2760600da2a13d5a2a335ba012d0f3ad5df4c098
  CC      drivers/watchdog/at91rm9200_wdt.o
at91rm9200_wdt.c:188: error: 'at91_wdt_ioctl' undeclared here (not in a
make[3]: *** [drivers/watchdog/at91rm9200_wdt.o] Error 1

- wdt285: d0e58eed05f9baf77c4f75e794ae245f6dae240a
  CC [M]  drivers/watchdog/wdt285.o
wdt285.c: In function 'footbridge_watchdog_init':
wdt285.c:211: error: 'KERN_WARN' undeclared (first use in this function)
wdt285.c:211: error: (Each undeclared identifier is reported only once
wdt285.c:211: error: for each function it appears in.)
wdt285.c:212: error: expected ')' before string constant
make[3]: *** [drivers/watchdog/wdt285.o] Error 1

And this patch from rmk:
- s3c2410_wdt: 41dc8b72e37c514f7332cbc3f3dd864910c2a1fa
  CC      drivers/watchdog/s3c2410_wdt.o
s3c2410_wdt.c: In function `s3c2410wdt_start':
s3c2410_wdt.c:161: warning: `return' with a value, in function returning void

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] update mach-types
Russell King [Wed, 13 Aug 2008 20:56:24 +0000 (21:56 +0100)]
[ARM] update mach-types

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] 5196/1: fix inline asm constraints for preload
Nicolas Pitre [Tue, 12 Aug 2008 21:10:59 +0000 (22:10 +0100)]
[ARM] 5196/1: fix inline asm constraints for preload

With gcc 4.3 and later, a pointer that has already been dereferenced is
assumed not to be null since it should have caused a segmentation fault
otherwise, hence any subsequent test against NULL is optimized away.

Current inline asm constraint used in the implementation of prefetch()
makes gcc believe that the pointer is dereferenced even though the PLD
instruction does not load any data and does not cause a segmentation
fault on null pointers, which causes all sorts of interesting results
when reaching the end of a linked lists for example.

Let's use a better constraint to properly represent the actual usage of
the pointer value.

Problem reported by Chris Steel.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years agolmb: Fix reserved region handling in lmb_enforce_memory_limit().
David S. Miller [Sat, 16 Aug 2008 02:57:57 +0000 (19:57 -0700)]
lmb: Fix reserved region handling in lmb_enforce_memory_limit().

The idea of the implementation of this fix is from Michael Ellerman.

This function has two loops, but they each interpret the memory_limit
value differently.  The first loop interprets it as a "size limit"
whereas the second loop interprets it as an "address limit".

Before the second loop runs, reset memory_limit to lmb_end_of_DRAM()
so that it all works out.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Michael Ellerman <michael@ellerman.id.au>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Fri, 15 Aug 2008 22:32:13 +0000 (15:32 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  security: Fix setting of PF_SUPERPRIV by __capable()

16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney...
Linus Torvalds [Fri, 15 Aug 2008 22:31:23 +0000 (15:31 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (33 commits)
  Blackfin arch: hook up some missing new system calls
  Blackfin arch: fix missing digit in SCLK range checking
  Blackfin arch: do not muck with the UART during boot -- let the serial driver worry about it
  Blackfin arch: clear EMAC_SYSTAT during IRQ init rather than early head.S as we dont need it setup that early
  Blackfin arch: use %pF when printing out the double fault address so we get symbol names
  Blackfin arch: add support for the BlackStamp board
  Blackfin arch: Allow ins functions to have a low latency version
  Blackfin arch: Print out doublefault addresses, so debug can occur
  Blackfin arch: shuffle related prototypes together -- no functional changes
  Blackfin arch: move fixed code defines into fixed_code.h as very few things actually need to know these details
  Blackfin arch: mark some functions as __init as they are only called from __init functions
  Blackfin arch: delete dead prototypes
  Blackfin arch: cleanup cache lock code
  Blackfin arch: workaround SIC_IWR1 reset bug, by keeping MDMA0/1 always enabled in SIC_IWR1.
  Blackfin arch: Fix bug - when expanding the trace buffer, it does not print out the decoded instruction.
  Blackfin arch: Fix Bug - System with EMAC driver enabled - Core not idling
  Blackfin arch: delete unused cache functions
  Blackfin arch: convert L2 defines to be the same as the L1 defines
  Blackfin arch: unify the duplicated portions of __start and split mach-specific pieces into _mach_early_start where they will be easier to trim over time
  Blackfin arch: add asm/thread_info.h for THREAD_SIZE define
  ...