21 Dec, 2006
1 commit
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This patch is designed to fix:
- Disk eating corruptor on KT7 after resume from RAM
- VIA IRQ handling
- VIA fixups for bus lockups after resume from RAMThe core of this is to add a table of resume fixups run at resume time.
We need to do this for a variety of boards and features, but particularly
we need to do this to get various critical VIA fixups done on resume.The second part of the problem is to handle VIA IRQ number rules which
are a bit odd and need special handling for PIC interrupts. Various
patches broke various boxes and while this one may not be perfect
(hopefully it is) it ensures the workaround is applied to the right
devices only.From: Jean Delvare
Now that PCI quirks are replayed on software resume, we can safely
re-enable the Asus SMBus unhiding quirk even when software suspend support
is enabled.[akpm@osdl.org: fix const warning]
Signed-off-by: Alan Cox
Cc: Jean Delvare
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman
18 Dec, 2006
4 commits
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* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] longhaul compile fix.
[CPUFREQ] Advise not to use longhaul on VIA C7.
[CPUFREQ] set policy->curfreq on initialization
[CPUFREQ] Trivial cleanup for acpi read/write port in acpi-cpufreq.c
[CPUFREQ] fixes typo in cpufreq.c -
Some gcc's are more anal than others about empty switch labels.
error: label at end of compound statementSigned-off-by: Dave Jones
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C7's are centrino speedstep-alike.
Signed-off-by: Dave Jones
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Check the correct variable and set policy->cur upon acpi-cpufreq
initialization to allow the userspace governor to be used as default.Signed-off-by: Mattia Dongili
Acked-by: "Pallipadi, Venkatesh"
Signed-off-by: Andrew Morton
Signed-off-by: Dave Jones
16 Dec, 2006
1 commit
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It has caused more problems than it ever really solved, and is
apparently not getting cleaned up and fixed. We can put it back when
it's stable and isn't likely to make warning or bug events worse.In the meantime, enable frame pointers for more readable stack traces.
Signed-off-by: Linus Torvalds
14 Dec, 2006
4 commits
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Small cleanup in acpi-cpufreq.
Signed-off-by: Venkatesh Pallipadi
Signed-off-by: Dave Jones -
Run this:
#!/bin/sh
for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
echo "De-casting $f..."
perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
doneAnd then go through and reinstate those cases where code is casting pointers
to non-pointers.And then drop a few hunks which conflicted with outstanding work.
Cc: Russell King , Ian Molton
Cc: Mikael Starvik
Cc: Yoshinori Sato
Cc: Roman Zippel
Cc: Geert Uytterhoeven
Cc: Ralf Baechle
Cc: Paul Mackerras
Cc: Kyle McMartin
Cc: Benjamin Herrenschmidt
Cc: Martin Schwidefsky
Cc: "David S. Miller"
Cc: Jeff Dike
Cc: Greg KH
Cc: Jens Axboe
Cc: Paul Fulghum
Cc: Alan Cox
Cc: Karsten Keil
Cc: Mauro Carvalho Chehab
Cc: Jeff Garzik
Cc: James Bottomley
Cc: Ian Kent
Cc: Steven French
Cc: David Woodhouse
Cc: Neil Brown
Cc: Jaroslav Kysela
Cc: Takashi Iwai
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
As Adrian pointed out recently, there were still a couple of places where
I should have fixed my email address.Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
#ifdef CONFIG_SMP in a file which isn't compiled in non-SMP kernels.
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
13 Dec, 2006
7 commits
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Conflicts:
drivers/cpufreq/cpufreq.c
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Support for CN400 northbridge when ACPI C3 isn't available.
Tested on Epia SP13000. Thanks to Robert for testing it.Signed-off-by: Rafa³ Bilski
Signed-off-by: Dave Jones -
On board of Epia SP13000 is 10x133Mhz VIA Nehemiah. It is reported
as 10x200MHz. This patch is fixing this issue.Signed-off-by: Rafa³ Bilski
Signed-off-by: Dave Jones -
Support for Core CPUs was broken in two ways in speedstep-lib: for x86_64,
we missed a MSR definition; for both x86_64 and i386, the FSB calculation
was wrong by four (it's a quad-pumped bus). Also increase the accuracy
of the calculation.Signed-off-by: Dominik Brodowski
Signed-off-by: Dave Jones -
Fix the bug in duplicate states elimination in acpi-cpufreq.
Bug: Due to duplicate state elimiation in the loop earlier, the number
of valid_states can be less than perf->state_count, in which case
freq_table was ending up with some garbage/uninitialized entries
in the table.Signed-off-by: Venkatesh Pallipadi
From: Alexey Starikovskiy
Signed-off-by: Dave Jones -
On some systems there could be bits set in the upper half of
the control value provided by the _PSS object. These bits are
only relevant for cpufreq drivers that use IO ports which are not
currently supported by the speedstep-centrino driver. The current
MSR oriented code assumes that upper bits are not set and thus
fails to work correctly when they are. e.g. the control and status
value equality check failed on the IBM x3650 even though the ACPI
spec allows inequality.Signed-off-by: Gary Hade
Signed-off-by: Dave Jones -
We don't need a temporary variable to get the PCI revision ID.
Signed-off-by: Jean Delvare
Signed-off-by: Dave Jones
10 Dec, 2006
7 commits
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Since Voyager and Visual WS already define ARCH_SETUP,
it looks like PARAVIRT shouldn't be offered for them.In file included from arch/i386/kernel/setup.c:63:
include/asm-i386/mach-visws/setup_arch.h:8:1: warning: "ARCH_SETUP" redefin=
ed
In file included from include/asm/msr.h:5,
from include/asm/processor.h:17,
from include/asm/thread_info.h:16,
from include/linux/thread_info.h:21,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:49,
from include/linux/capability.h:45,
from include/linux/sched.h:46,
from arch/i386/kernel/setup.c:26:
include/asm/paravirt.h:163:1: warning: this is the location of the previous=
definition
In file included from arch/i386/kernel/setup.c:63:
include/asm-i386/mach-visws/setup_arch.h:8:1: warning: "ARCH_SETUP" redefin=
ed
In file included from include/asm/msr.h:5,
from include/asm/processor.h:17,
from include/asm/thread_info.h:16,
from include/linux/thread_info.h:21,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:49,
from include/linux/capability.h:45,
from include/linux/sched.h:46,
from arch/i386/kernel/setup.c:26:
include/asm/paravirt.h:163:1: warning: this is the location of the previous=
definitionSigned-off-by: Randy Dunlap
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gcc 4.2 warns
linux/arch/i386/kernel/io_apic.c: In function ‘create_irq’:
linux/arch/i386/kernel/io_apic.c:2488: warning: ‘vector’ may be used uninitialized in this functionThe warning is false, but somewhat legitimate so work around it.
Signed-off-by: Andi Kleen
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oprofile uses smp_num_siblings without testing for CONFIG_X86_HT.
I looked at modifying oprofile, but this way is cleaner & simpler
and I didn't see a good reason not to just export it when CONFIG_SMP.WARNING: "smp_num_siblings" [arch/i386/oprofile/oprofile.ko] undefined!
Signed-off-by: Randy Dunlap
Signed-off-by: Andi Kleen -
The new PDA code uses a dummy _proxy_pda variable to describe
memory references to the PDA. It is never referenced
in inline assembly, but exists as input/output arguments.
gcc 4.2 in some cases can CSE references to this which causes
unresolved symbols. Define it to zero to avoid this.Signed-off-by: Andi Kleen
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2.6.19 stopped booting (or booted based on build/config) on our x86_64
systems due to a bug introduced in 2.6.19. check_nmi_watchdog schedules an
IPI on all cpus to busy wait on a flag, but fails to set the busywait
flag if NMI functionality is disabled. This causes the secondary cpus
to spin in an endless loop, causing the kernel bootup to hang.
Depending upon the build, the busywait flag got overwritten (stack variable)
and caused the kernel to bootup on certain builds. Following patch fixes
the bug by setting the busywait flag before returning from check_nmi_watchdog.
I guess using a stack variable is not good here as the calling function could
potentially return while the busy wait loop is still spinning on the flag.AK: I redid the patch significantly to be cleaner
Signed-off-by: Ravikiran Thirumalai
Signed-off-by: Shai Fultheim
Signed-off-by: Andi Kleen -
Fix verify_quirk_intel_irqbalance(). genapic checks should really
happen only on affected versions of the E7520/E7320/E7525 based platforms.AK: This should akpm's Coyote SDV
Signed-off-by: Suresh Siddha
Signed-off-by: Andi Kleen -
Signed-off-by: Andi Kleen
09 Dec, 2006
5 commits
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In VMSPLIT mode, kernel PGD might have more entries than user space.
Acked-by: Jens Axboe
Signed-off-by: Shaohua Li
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
With CONFIG_FB_SGIVW=m:
WARNING: "sgivwfb_mem_size" [drivers/video/sgivwfb.ko] undefined!
WARNING: "sgivwfb_mem_phys" [drivers/video/sgivwfb.ko] undefined!(or don't allow FB_SGIVW=m in Kconfig)
Signed-off-by: Randy Dunlap
Acked-by: James Simmons
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This facility provides three entry points:
ilog2() Log base 2 of unsigned long
ilog2_u32() Log base 2 of u32
ilog2_u64() Log base 2 of u64These facilities can either be used inside functions on dynamic data:
int do_something(long q)
{
...;
y = ilog2(x)
...;
}Or can be used to statically initialise global variables with constant values:
unsigned n = ilog2(27);
When performing static initialisation, the compiler will report "error:
initializer element is not constant" if asked to take a log of zero or of
something not reducible to a constant. They treat negative numbers as
unsigned.When not dealing with a constant, they fall back to using fls() which permits
them to use arch-specific log calculation instructions - such as BSR on
x86/x86_64 or SCAN on FRV - if available.[akpm@osdl.org: MMC fix]
Signed-off-by: David Howells
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Herbert Xu
Cc: David Howells
Cc: Wojtek Kaniewski
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in the i386
arch code.Signed-off-by: Josef "Jeff" Sipek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This makes i386 use the generic BUG machinery. There are no functional
changes from the old i386 implementation.The main advantage in using the generic BUG machinery for i386 is that the
inlined overhead of BUG is just the ud2a instruction; the file+line(+function)
information are no longer inlined into the instruction stream. This reduces
cache pollution, and makes disassembly work properly.Signed-off-by: Jeremy Fitzhardinge
Cc: Andi Kleen
Cc: Hugh Dickens
Cc: Michael Ellerman
Cc: Paul Mackerras
Cc: Benjamin Herrenschmidt
Cc: Rusty Russell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Dec, 2006
11 commits
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* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (156 commits)
[PATCH] x86-64: Export smp_call_function_single
[PATCH] i386: Clean up smp_tune_scheduling()
[PATCH] unwinder: move .eh_frame to RODATA
[PATCH] unwinder: fully support linker generated .eh_frame_hdr section
[PATCH] x86-64: don't use set_irq_regs()
[PATCH] x86-64: check vector in setup_ioapic_dest to verify if need setup_IO_APIC_irq
[PATCH] x86-64: Make ix86 default to HIGHMEM4G instead of NOHIGHMEM
[PATCH] i386: replace kmalloc+memset with kzalloc
[PATCH] x86-64: remove remaining pc98 code
[PATCH] x86-64: remove unused variable
[PATCH] x86-64: Fix constraints in atomic_add_return()
[PATCH] x86-64: fix asm constraints in i386 atomic_add_return
[PATCH] x86-64: Correct documentation for bzImage protocol v2.05
[PATCH] x86-64: replace kmalloc+memset with kzalloc in MTRR code
[PATCH] x86-64: Fix numaq build error
[PATCH] x86-64: include/asm-x86_64/cpufeature.h isn't a userspace header
[PATCH] unwinder: Add debugging output to the Dwarf2 unwinder
[PATCH] x86-64: Clarify error message in GART code
[PATCH] x86-64: Fix interrupt race in idle callback (3rd try)
[PATCH] x86-64: Remove unwind stack pointer alignment forcing again
...Fixed conflict in include/linux/uaccess.h manually
Signed-off-by: Linus Torvalds
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The elf note saving code is currently duplicated over several
architectures. This cleanup patch simply adds code to a common file and
then replaces the arch-specific code with calls to the newly added code.The only drawback with this approach is that s390 doesn't fully support
kexec-on-panic which for that arch leads to introduction of unused code.Signed-off-by: Magnus Damm
Cc: Vivek Goyal
Cc: Andi Kleen
Cc: Paul Mackerras
Cc: Benjamin Herrenschmidt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Every file should #include the headers containing the prototypes for
its global functions.Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There was lots of #ifdef noise in the kernel due to hotcpu_notifier(fn,
prio) not correctly marking 'fn' as used in the !HOTPLUG_CPU case, and thus
generating compiler warnings of unused symbols, hence forcing people to add
#ifdefs.the compiler can skip truly unused functions just fine:
text data bss dec hex filename
1624412 728710 3674856 6027978 5bfaca vmlinux.before
1624412 728710 3674856 6027978 5bfaca vmlinux.after[akpm@osdl.org: topology.c fix]
Signed-off-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
smp_call_function_single() can deadlock if the caller disabled local
interrupts (the target CPU could be spinning on call_lock). Check for that.Why on earth do these functions use spin_lock_bh()??
Cc: "Randy.Dunlap"
Cc: Andi Kleen
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When we are unregistering a kprobe-booster, we can't release its
instruction buffer immediately on the preemptive kernel, because some
processes might be preempted on the buffer. The freeze_processes() and
thaw_processes() functions can clean most of processes up from the buffer.
There are still some non-frozen threads who have the PF_NOFREEZE flag. If
those threads are sleeping (not preempted) at the known place outside the
buffer, we can ensure safety of freeing.However, the processing of this check routine takes a long time. So, this
patch introduces the garbage collection mechanism of insn_slot. It also
introduces the "dirty" flag to free_insn_slot because of efficiency.The "clean" instruction slots (dirty flag is cleared) are released
immediately. But the "dirty" slots which are used by boosted kprobes, are
marked as garbages. collect_garbage_slots() will be invoked to release
"dirty" slots if there are more than INSNS_PER_PAGE garbage slots or if
there are no unused slots.Cc: "Keshavamurthy, Anil S"
Cc: Ananth N Mavinakayanahalli
Cc: "bibo,mao"
Cc: Prasanna S Panchamukhi
Cc: Yumiko Sugita
Cc: Satoshi Oshima
Cc: Hideo Aoki
Signed-off-by: Masami Hiramatsu
Acked-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
After LOADER_TYPE && INITRD_START are true, the short if-condition
for INITRD_START can never be false.Remove unused code from the else condition.
Signed-off-by: Henry Nestler
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Name some of the remaning 'old_style_spin_init' locks
Signed-off-by: Peter Zijlstra
Acked-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make swsusp support i386 systems with PAE or without PSE.
This is done by creating temporary page tables located in resume-safe page
frames before the suspend image is restored in the same way as x86_64 does
it.Signed-off-by: Rafael J. Wysocki
Cc: Andi Kleen
Cc: Dave Jones
Cc: Nigel Cunningham
Cc: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move process freezing functions from include/linux/sched.h to freezer.h, so
that modifications to the freezer or the kernel configuration don't require
recompiling just about everything.[akpm@osdl.org: fix ueagle driver]
Signed-off-by: Nigel Cunningham
Cc: "Rafael J. Wysocki"
Cc: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Replace all uses of kmem_cache_t with struct kmem_cache.
The patch was generated using the following script:
#!/bin/sh
#
# Replace one string by another in all the kernel sources.
#set -e
for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
quilt add $file
sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
mv /tmp/$$ $file
quilt refresh
doneThe script was run like this
sh replace kmem_cache_t "struct kmem_cache"
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
