Len Brown [Tue, 20 Nov 2007 06:21:47 +0000 (01:21 -0500)]
Pull fluff into release branch
Conflicts:
drivers/acpi/ec.c
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Tue, 20 Nov 2007 06:20:57 +0000 (01:20 -0500)]
Pull video-2.6.24 into release branch
Len Brown [Tue, 20 Nov 2007 06:20:42 +0000 (01:20 -0500)]
Pull thinkpad-2.6.24 into release branch
Len Brown [Tue, 20 Nov 2007 06:20:31 +0000 (01:20 -0500)]
Pull thermal into release branch
Len Brown [Tue, 20 Nov 2007 06:20:00 +0000 (01:20 -0500)]
Pull procfs-default into release branch
Conflicts:
drivers/acpi/sbs.c
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Tue, 20 Nov 2007 06:18:37 +0000 (01:18 -0500)]
Pull cpuidle into release branch
Len Brown [Tue, 20 Nov 2007 06:18:19 +0000 (01:18 -0500)]
Pull bugzilla-9327 into release branch
Len Brown [Tue, 20 Nov 2007 06:18:07 +0000 (01:18 -0500)]
Pull bugzilla-9262 into release branch
Len Brown [Tue, 20 Nov 2007 06:17:54 +0000 (01:17 -0500)]
Pull bugzilla-9153 into release branch
Len Brown [Tue, 20 Nov 2007 06:17:42 +0000 (01:17 -0500)]
Pull battery into release branch
Shaohua Li [Sat, 17 Nov 2007 06:05:28 +0000 (01:05 -0500)]
ACPI: fix two IRQ8 issues in IOAPIC mode
Use mp_irqs[] to get PNP device's interrupt polarity and trigger.
There are two reasons to do this:
1. BIOS bug for PNP interrupt
2. BIOS explictly does override
mp_irqs[] should cover all the cases.
http://bugzilla.kernel.org/show_bug.cgi?id=5243
http://bugzilla.kernel.org/show_bug.cgi?id=7679
http://bugzilla.kernel.org/show_bug.cgi?id=9153
[lenb: fixed !IOAPIC and 64-bit !SMP builds]
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Joe Perches [Tue, 20 Nov 2007 01:48:02 +0000 (17:48 -0800)]
ACPI: Add missing spaces to printk format
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Venkatesh Pallipadi [Tue, 20 Nov 2007 02:43:22 +0000 (21:43 -0500)]
cpuidle: fix HP nx6125 regression
Fix for http://bugzilla.kernel.org/show_bug.cgi?id=9355
cpuidle always used to fallback to C2 if there is some bm activity while
entering C3. But, presence of C2 is not always guaranteed. Change cpuidle
algorithm to detect a safe_state to fallback in case of bm_activity and
use that state instead of C2.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Venkatesh Pallipadi [Tue, 20 Nov 2007 00:49:00 +0000 (19:49 -0500)]
cpuidle: add sched_clock_idle_[sleep|wakeup]_event() hooks
Port
2aa44d0567ed21b47b87d68819415d48194cb923
(sched: sched_clock_idle_[sleep|wakeup]_event()) to cpuidle.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Venkatesh Pallipadi [Tue, 20 Nov 2007 00:48:00 +0000 (19:48 -0500)]
cpuidle: fix C3 for no bus-master control case
Port
18eab8550397f1f3d4b8b2c5257c88dae25d58ed
(Enable C3 even when PM2_control is zero) to cpuidle.
Without this patch, some systems will notice a regression
when enabling CPU_IDLE -- C3 would no longer be available.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Henrique de Moraes Holschuh [Sun, 18 Nov 2007 11:18:29 +0000 (09:18 -0200)]
ACPI: thinkpad-acpi: fix oops when a module parameter has no value
set_ibm_param() could OOPS with a NULL pointer derreference if one did not give
any values for a module parameter it handles. This would, of course, cause all
sort of trouble for future modprobing and require a reboot to clean up
properly.
Fix it by returning -EINVAL if no values are given for the parameter, and also
avoid any nastyness from BUG_ON while at it.
How to reproduce: modprobe thinkpad-acpi brightness
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Mike Kershaw <dragorn@kismetwireless.net>
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Mon, 19 Nov 2007 17:23:59 +0000 (12:23 -0500)]
Revert "Fix very high interrupt rate for IRQ8 (rtc) unless pnpacpi=off"
This reverts commit
9cd8047b463f213c294f756119ac353312e7a152.
Alexey Starikovskiy [Thu, 15 Nov 2007 18:52:47 +0000 (21:52 +0300)]
ACPI: EC: Don't init EC early if it has no _INI
Option to init EC early inserted to handle #8598 ASUS problem,
introduced several others.
EC driver in this particular case has fake _INI method, not present on
other machines, which don't need or break from this workaround, so lets use
its presence as a flag for early init.
http://bugzilla.kernel.org/show_bug.cgi?id=9262
http://bugzilla.kernel.org/show_bug.cgi?id=8598
https://bugzilla.novell.com/show_bug.cgi?id=334806
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Mon, 19 Nov 2007 16:22:44 +0000 (11:22 -0500)]
Revert "acpi: make ACPI_PROCFS default to y"
This reverts commit
cbff2fbf55c21f50298b1aef1263b11bf510e35f.
Len Brown [Mon, 19 Nov 2007 16:22:35 +0000 (11:22 -0500)]
Revert "ACPI: add documentation for deprecated /proc/acpi/battery in ACPI_PROCFS"
This reverts commit
6e800af233e0bdf108efb7bd23c11ea6fa34cdeb.
Alexey Starikovskiy [Mon, 19 Nov 2007 13:33:45 +0000 (16:33 +0300)]
ACPI: Split out control for /proc/acpi entries from battery, ac, and sbs.
Introduce new ACPI_PROCFS_POWER (default Yes) config option and move
procfs code in battery, ac, and sbs drivers under it.
This is done to allow ACPI_PROCFS to be default No.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Danny Baumann [Fri, 2 Nov 2007 12:47:53 +0000 (13:47 +0100)]
ACPI: Video: Increase buffer size for writes to brightness proc file.
In order to be able to write the value "100"
to /proc/acpi/video/.../brightness, we have to allocate 5 bytes:
4 characters will be written (1, 0, 0 plus null byte),
and 1 byte should be buffer for a terminating NULL character.
http://bugzilla.kernel.org/show_bug.cgi?id=9278
Signed-off-by: Danny Baumann <dannybaumann@web.de>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Alexey Starikovskiy [Sun, 18 Nov 2007 22:37:03 +0000 (01:37 +0300)]
ACPI: EC: Workaround for optimized controllers
Some controllers fail to send confirmation GPE after address write.
Detect this and don't expect such confirmation in future.
This is a generalization of previous workaround
(
66c5f4e7367b0085652931b2f3366de29e7ff5ec), which did only read address.
http://bugzilla.kernel.org/show_bug.cgi?id=9327
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Tested-by: Romano Giannetti <romano.giannetti@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Jeff Garzik [Sat, 17 Nov 2007 21:32:31 +0000 (00:32 +0300)]
ACPI: SBS: Fix retval warning
drivers/acpi/sbs.c: In function acpi_battery_add:
drivers/acpi/sbs.c:811: warning: ignoring return value of device_create_file,
declared with attribute warn_unused_result
Additional cleanups:
* use struct acpi_battery in acpi_battery_remove() to clean up function
calls, just like acpi_battery_add() already does.
* put braces around unregister call, as it depends on dev being not NULL.
* remove unneeded braces
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Linus Torvalds [Sat, 17 Nov 2007 16:36:10 +0000 (08:36 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/x86/linux-2.6-x86
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
x86: simplify "make ARCH=x86" and fix kconfig all.config
x86: reboot fixup for wrap2c board
x86: check boundary in count setup resource
x86: fix reboot with no keyboard attached
x86: add hpet sanity checks
x86: on x86_64, correct reading of PC RTC when update in progress in time_64.c
x86: fix freeze in x86_64 RTC update code in time_64.c
ntp: fix typo that makes sync_cmos_clock erratic
Remove x86 merge artifact from top Makefile
x86: fixup cpu_info array conversion
x86: show cpuinfo only for online CPUs
x86: fix cpu-hotplug regression
x86: ignore the sys_getcpu() tcache parameter
x86: voyager use correct header file name
x86: fix smp init sections
x86: fix voyager_cat_init section
x86: fix bogus memcpy in es7000_check_dsdt()
Sam Ravnborg [Sat, 17 Nov 2007 14:37:31 +0000 (15:37 +0100)]
x86: simplify "make ARCH=x86" and fix kconfig all.config
Simplify "make ARCH=x86" and fix kconfig so we again can set 64BIT in
all.config.
For a fix the diffstat is nice:
6 files changed, 3 insertions(+), 36 deletions(-)
The patch reverts these commits:
-
0f855aa64b3f63d35a891510cf7db932a435c116 ("kconfig: add helper to set
config symbol from environment variable")
-
2a113281f5cd2febbab21a93c8943f8d3eece4d3 ("kconfig: use $K64BIT to
set 64BIT with all*config targets")
Roman Zippel pointed out that kconfig supported string compares so
the additional complexity introduced by the above two patches were
not needed.
With this patch we have following behaviour:
# make {allno,allyes,allmod,rand}config [ARCH=...]
option \ host arch | 32bit | 64bit
=====================================================
./. | 32bit | 64bit
ARCH=x86 | 32bit | 32bit
ARCH=i386 | 32bit | 32bit
ARCH=x86_64 | 64bit | 64bit
The general rule are that ARCH= and native architecture takes
precedence over the configuration.
So make ARCH=i386 [whatever] will always build a 32-bit kernel
no matter what the configuration says. The configuration will
be updated to 32-bit if it was configured to 64-bit and the
other way around.
This behaviour is consistent with previous behaviour so no
suprises here.
make ARCH=x86 will per default result in a 32-bit kernel but as
the only ARCH= value x86 allow the user to select between 32-bit
and 64-bit using menuconfig.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Andreas Herrmann <aherrman@arcor.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sam Ravnborg [Sat, 17 Nov 2007 14:37:31 +0000 (15:37 +0100)]
x86: simplify "make ARCH=x86" and fix kconfig all.config
Simplify "make ARCH=x86" and fix kconfig so we again
can set 64BIT in all.config.
For a fix the diffstat is nice:
6 files changed, 3 insertions(+), 36 deletions(-)
The patch reverts these commits:
0f855aa64b3f63d35a891510cf7db932a435c116
-> kconfig: add helper to set config symbol from environment variable
2a113281f5cd2febbab21a93c8943f8d3eece4d3
-> kconfig: use $K64BIT to set 64BIT with all*config targets
Roman Zippel pointed out that kconfig supported string
compares so the additional complexity introduced by the
above two patches were not needed.
With this patch we have following behaviour:
# make {allno,allyes,allmod,rand}config [ARCH=...]
option \ host arch | 32bit | 64bit
=====================================================
./. | 32bit | 64bit
ARCH=x86 | 32bit | 32bit
ARCH=i386 | 32bit | 32bit
ARCH=x86_64 | 64bit | 64bit
The general rule are that ARCH= and native architecture
takes precedence over the configuration.
So make ARCH=i386 [whatever] will always build a 32-bit
kernel no matter what the configuration says.
The configuration will be updated to 32-bit if it was
configured to 64-bit and the other way around.
This behaviour is consistent with previous behaviour so
no suprises here.
make ARCH=x86 will per default result in a 32-bit kernel
but as the only ARCH= value x86 allow the user to select
between 32-bit and 64-bit using menuconfig.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Andreas Herrmann <aherrman@arcor.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Denys [Sat, 17 Nov 2007 15:27:02 +0000 (16:27 +0100)]
x86: reboot fixup for wrap2c board
Needed to make the wireless board, WRAP2C reboot.
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Yinghai Lu [Sat, 17 Nov 2007 15:27:01 +0000 (16:27 +0100)]
x86: check boundary in count setup resource
need to check info->res_num less than PCI_BUS_NUM_RESOURCES, so
info->bus->resource[info->res_num] = res will not beyond of bus resource
array when acpi returns too many resource entries.
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Gary Hade <gary.hade@us.ibm.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Truxton Fulton [Sat, 17 Nov 2007 15:27:01 +0000 (16:27 +0100)]
x86: fix reboot with no keyboard attached
Attempt to fix http://bugzilla.kernel.org/show_bug.cgi?id=8378
Hiroto Shibuya wrote to tell me that he has a VIA EPIA-EK10000 which
suffers from the reboot problem when no keyboard is attached. My first
patch works for him:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=
59f4e7d572980a521b7bdba74ab71b21f5995538
But the latest patch does not work for him :
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=
8b93789808756bcc1e5c90c99f1b1ef52f839a51
We found that it was necessary to also set the "disable keyboard" flag in
the command byte, as the first patch was doing. The second patch tries to
minimally modify the command byte, but it is not enough.
Please consider this simple one-line patch to help people with low end VIA
motherboards reboot when no keyboard is attached. Hiroto Shibuya has
verified that this works for him (as I no longer have an afflicted
machine).
Additional discussion:
Note that original patch from Truxton DOES
disable keyboard and this has been in main tree since 2.6.14, thus it must have
quite a bit of air time already.
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.14.y.git;a=commit;h=
59f4e7d572980a521b7bdba74ab71b21f5995538
Note that he only mention "System flag" in the description and comment, but
in the code, "disable keyboard" flag is set.
outb(0x14, 0x60); /* set "System flag" */
In 2.6.23, he made a change to read the current byte and then mask the flags,
but along this change, he only set the "System flag" and dropped the setting
of "disable keyboard" flag.
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.23.y.git;a=commit;h=
8b93789808756bcc1e5c90c99f1b1ef52f839a51
outb(cmd | 0x04, 0x60); /* set "System flag" */
So my request is to restore the setting of disable keyboard flag which has been
there since 2.6.14 but disappeared in 2.6.23.
Cc: Lee Garrett <lee-in-berlin@web.de>
Cc: "Hiroto Shibuya" <hiroto.shibuya@gmail.com>
Cc: Natalie Protasevich <protasnb@gmail.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Aristeu Rozanski <aris@ruivo.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Fri, 16 Nov 2007 02:41:50 +0000 (21:41 -0500)]
x86: add hpet sanity checks
Some BIOSes advertise HPET at 0x0. We really do no want to
allocate a resource there. Check for it and leave early.
Other BIOSes tell us the HPET is at 0xfed0000000000000
instead of 0xfed00000. Add a check and fix it up with a warning
on user request.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
David P. Reed [Thu, 15 Nov 2007 01:14:50 +0000 (20:14 -0500)]
x86: on x86_64, correct reading of PC RTC when update in progress in time_64.c
Correct potentially unstable PC RTC time register reading in time_64.c
Stop the use of an incorrect technique for reading the standard PC RTC
timer, which is documented to "disconnect" time registers from the bus
while updates are in progress. The use of UIP flag while interrupts
are disabled to protect a 244 microsecond window is one of the
Motorola spec sheet's documented ways to read the RTC time registers
reliably.
tglx: removed locking changes from original patch, as they gain nothing
(read_persistent_clock is only called during boot, suspend, resume - so
no hot path affected) and conflict with the paravirt locking scheme
(see 32bit code), which we do not want to complicate for no benefit.
Signed-off-by: David P. Reed <dpreed@reed.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
David P. Reed [Wed, 14 Nov 2007 22:47:35 +0000 (17:47 -0500)]
x86: fix freeze in x86_64 RTC update code in time_64.c
Fix hard freeze on x86_64 when the ntpd service calls
update_persistent_clock()
A repeatable but randomly timed freeze has been happening in Fedora 6
and 7 for the last year, whenever I run the ntpd service on my AMD64x2
HP Pavilion dv9000z laptop. This freeze is due to the use of
spin_lock(&rtc_lock) under the assumption (per a bad comment) that
set_rtc_mmss is called only with interrupts disabled. The call from
ntp.c to update_persistent_clock is made with interrupts enabled.
Signed-off-by: David P. Reed <dpreed@reed.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
David P. Reed [Wed, 14 Nov 2007 22:49:21 +0000 (17:49 -0500)]
ntp: fix typo that makes sync_cmos_clock erratic
Fix a typo in ntp.c that has caused updating of the persistent (RTC)
clock when synced to NTP to behave erratically.
When debugging a freeze that arises on my AMD64 machines when I
run the ntpd service, I added a number of printk's to monitor the
sync_cmos_clock procedure. I discovered that it was not syncing to
cmos RTC every 11 minutes as documented, but instead would keep trying
every second for hours at a time. The reason turned out to be a typo
in sync_cmos_clock, where it attempts to ensure that
update_persistent_clock is called very close to 500 msec. after a 1
second boundary (required by the PC RTC's spec). That typo referred to
"xtime" in one spot, rather than "now", which is derived from "xtime"
but not equal to it. This makes the test erratic, creating a
"coin-flip" that decides when update_persistent_clock is called - when
it is called, which is rarely, it may be at any time during the one
second period, rather than close to 500 msec, so the value written is
needlessly incorrect, too.
Signed-off-by: David P. Reed
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Thu, 15 Nov 2007 06:11:12 +0000 (07:11 +0100)]
Remove x86 merge artifact from top Makefile
The x86 merge modified the tags target to handle the two separate
source directories. Remove it now that i386/x86_64 are gone completely.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Sat, 17 Nov 2007 12:18:42 +0000 (13:18 +0100)]
x86: fixup cpu_info array conversion
92cb7612aee39642d109b8d935ad265e602c0563 sets cpu_info->cpu_index to zero
for no reason. Referencing cpu_info->cpu_index now points always to CPU#0,
which is apparently not what we want.
Remove it.
Spotted-by: Zou Nan hai <nanhai.zou@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andreas Herrmann [Thu, 1 Nov 2007 18:32:17 +0000 (19:32 +0100)]
x86: show cpuinfo only for online CPUs
Fix regressions introduced with
92cb7612aee39642d109b8d935ad265e602c0563.
It can happen that cpuinfo is displayed for CPUs that are not online or
even worse for CPUs not present at all. As an example, following was
shown for a "second" CPU of a single core K8 variant:
processor : 0
vendor_id : unknown
cpu family : 0
model : 0
model name : unknown
stepping : 0
cache size : 0 KB
fpu : yes
fpu_exception : yes
cpuid level : 0
wp : yes
flags :
bogomips : 0.00
clflush size : 0
cache_alignment : 0
address sizes : 0 bits physical, 0 bits virtual
power management:
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andreas Herrmann [Wed, 7 Nov 2007 01:12:58 +0000 (02:12 +0100)]
x86: fix cpu-hotplug regression
Commit
d435d862baca3e25e5eec236762a43251b1e7ffc
("cpu hotplug: mce: fix cpu hotplug error handling")
changed the error handling in mce_cpu_callback.
In cases where not all CPUs are brought up during
boot (e.g. using maxcpus and additional_cpus parameters)
mce_cpu_callback now returns NOTFIY_BAD because
for such CPUs cpu_data is not completely filled when
the notifier is called. Thus mce_create_device fails right
at its beginning:
if (!mce_available(&cpu_data[cpu]))
return -EIO;
As a quick fix I suggest to check boot_cpu_data for MCE.
To reproduce this regression:
(1) boot with maxcpus=2 addtional_cpus=2 on a 4 CPU x86-64 system
(2) # echo 1 >/sys/devices/system/cpu/cpu2/online
-bash: echo: write error: Invalid argument
dmesg shows:
_cpu_up: attempt to bring up CPU 2 failed
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Ingo Molnar [Wed, 7 Nov 2007 17:37:48 +0000 (18:37 +0100)]
x86: ignore the sys_getcpu() tcache parameter
dont use the vgetcpu tcache - it's causing problems with tasks
migrating, they'll see the old cache up to a jiffy after the
migration, further increasing the costs of the migration.
In the worst case they see a complete bogus information from
the tcache, when a sys_getcpu() call "invalidated" the cache
info by incrementing the jiffies _and_ the cpuid info in the
cache and the following vdso_getcpu() call happens after
vdso_jiffies have been incremented.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Randy Dunlap [Mon, 12 Nov 2007 05:06:02 +0000 (21:06 -0800)]
x86: voyager use correct header file name
Fix header file name for Voyager build.
In file included from arch/x86/kernel/setup_32.c:61:
include/asm-x86/mach-voyager/setup_arch.h:2:26: error: asm/setup_32.h: No such file or directory
make[1]: *** [arch/x86/kernel/setup_32.o] Error 1
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Randy Dunlap [Mon, 12 Nov 2007 05:06:45 +0000 (21:06 -0800)]
x86: fix smp init sections
Fix Voyager section mismatch due to using __devinit instead of __cpuinit.
WARNING: vmlinux.o(.text+0xd943): Section mismatch: reference to .init.text:init_gdt (between 'voyager_smp_prepare_boot_cpu' and 'smp_vic_cmn_interrupt')
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Randy Dunlap [Mon, 12 Nov 2007 05:06:23 +0000 (21:06 -0800)]
x86: fix voyager_cat_init section
Fix Voyager section mismatches: voyager_cat_init() should be __init.
WARNING: vmlinux.o(.text+0xee83): Section mismatch: reference to .init.data:eprom_buf (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xeea6): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xeeac): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xeeb2): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xef4c): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xef56): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf10f): Section mismatch: reference to .init.data:eprom_buf (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf13b): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf14b): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf159): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf1b1): Section mismatch: reference to .init.data:eprom_buf (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf1bb): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf1c1): Section mismatch: reference to .init.data:eprom_buf (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf1c7): Section mismatch: reference to .init.data:eprom_buf (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf1e6): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Wed, 14 Nov 2007 12:20:48 +0000 (13:20 +0100)]
x86: fix bogus memcpy in es7000_check_dsdt()
es7000_check_dst() contains a memcpy from 0, which probably should have been
a memset. Remove it and check the retunr value from acpi_get_table_header.
Noticed by: Joe Perches <joe@perches.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Linus Torvalds [Sat, 17 Nov 2007 05:16:36 +0000 (21:16 -0800)]
Linux 2.6.24-rc3
Zhao Yakui [Thu, 15 Nov 2007 09:06:36 +0000 (17:06 +0800)]
ACPI: Enable MSR (FixedHW) support for T-States
Add throttling control via MSR when T-states uses
the FixHW Control Status registers.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Zhao Yakui [Thu, 15 Nov 2007 09:05:46 +0000 (17:05 +0800)]
ACPI: Get throttling info from BIOS only after evaluating _PDC
Previously _PDC was evaluated later, and thus we'd not get
the chance to tell the BIOS that we can suport FixedHW registers (MSRs)
and the BIOS would always ask us to use System I/O access
for throttling.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Zhao Yakui [Thu, 15 Nov 2007 09:05:05 +0000 (17:05 +0800)]
ACPI: Use _TSS for throttling control, when present. Add error checks.
_TSS was erroneously ignored, in favor of the FADT.
When TSS is used, the access width is included in the PTC control/status
register. So it is unnecessary that the access bit width is multiplied by 8.
At the same time the bit_offset should be considered for system I/O Access.
It should be checked the bit_width and bit_offset of PTC regsiter in order to
avoid the failure of system I/O access. It means that bit_width plus
bit_offset can't be greater than 32.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Zhao Yakui [Thu, 15 Nov 2007 09:03:46 +0000 (17:03 +0800)]
ACPI: throttle: Change internal APIs better handle _PTC
Change the function interface for throttling control via PTC.
The following functions are concerned:
acpi_read_throttling_status()
acpi_write_throttling_state()
acpi_get_throttling_value()
acpi_get_throttling_state()
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Zhao Yakui [Thu, 15 Nov 2007 09:02:03 +0000 (17:02 +0800)]
ACPI: If _TSS exists, do not access FADT.duty_width
Factor out legacy FADT.duty_width code
and run it only in the non _TSS case.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Zhao Yakui [Thu, 15 Nov 2007 09:01:06 +0000 (17:01 +0800)]
ACPI: Handle I/O access width requestst that are not a multiple of 8 bits.
We've run into BIOS that hand us 4-bit access width requests
for T-state control when the code expected only multipls of 8-bits.
Round up.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Zhao Yakui [Thu, 15 Nov 2007 08:59:30 +0000 (16:59 +0800)]
ACPI: Enforce T-state limit changes immediately
When a T-state limit change notification is received,
Linux must evaluate _TPC and change its current
T-state immediately to comply with the new limit.
Previously, Linux would notice the new limit
only upon the next throttling change.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Linus Torvalds [Sat, 17 Nov 2007 02:32:28 +0000 (18:32 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/selinux-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:
SELinux: return EOPNOTSUPP not ENOTSUPP
Linus Torvalds [Sat, 17 Nov 2007 02:32:08 +0000 (18:32 -0800)]
Merge branch 'for-linus' of /home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 4638/1: pxa: use PXA3xx specific macros to define clks
[ARM] remove useless setting of VM_RESERVED
Linus Torvalds [Sat, 17 Nov 2007 02:30:26 +0000 (18:30 -0800)]
Merge /pub/scm/linux/kernel/git/davej/cpufreq
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Fix up whitespace in conservative governor.
[CPUFREQ] Make cpufreq_conservative handle out-of-sync events properly
[CPUFREQ] architectural pstate driver for powernow-k8
Adrian Bunk [Fri, 9 Nov 2007 06:02:11 +0000 (07:02 +0100)]
x86: acpi_pciprobe_dmi_table[] must be __devinitdata
This patch fixes the following section mismatches with CONFIG_HOTPLUG=n:
<-- snip -->
...
WARNING: vmlinux.o(.data+0x23640): Section mismatch: reference to .init.text.20:can_skip_ioresource_align (between 'acpi_pciprobe_dmi_table' and 'pcibios_irq_mask')
WARNING: vmlinux.o(.data+0x2366c): Section mismatch: reference to .init.text.20:can_skip_ioresource_align (between 'acpi_pciprobe_dmi_table' and 'pcibios_irq_mask')
WARNING: vmlinux.o(.data+0x23698): Section mismatch: reference to .init.text.20:can_skip_ioresource_align (between 'acpi_pciprobe_dmi_table' and 'pcibios_irq_mask')
...
<-- snip -->
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Adrian Bunk [Fri, 9 Nov 2007 06:03:13 +0000 (07:03 +0100)]
x86_64: remove acpi_pci_link_exit()
acpi_pci_link_exit() is both unused and empty.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Eric Paris [Fri, 16 Nov 2007 21:35:56 +0000 (16:35 -0500)]
SELinux: return EOPNOTSUPP not ENOTSUPP
ENOTSUPP is not a valid error code in the kernel (it is defined in some
NFS internal error codes and has been improperly used other places). In
the !CONFIG_SECURITY_SELINUX case though it is possible that we could
return this from selinux_audit_rule_init(). This patch just returns the
userspace valid EOPNOTSUPP.
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
eric miao [Tue, 30 Oct 2007 07:10:18 +0000 (08:10 +0100)]
[ARM] 4638/1: pxa: use PXA3xx specific macros to define clks
PXA3xx uses its own clk_pxa3xx_cken_ops, modify the code to use the
PXA3xx specific macros to define its clocks
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Fri, 16 Nov 2007 00:41:52 +0000 (16:41 -0800)]
dirty page balancing: Get rid of broken unmapped_ratio logic
This code harks back to the days when we didn't count dirty mapped
pages, which led us to try to balance the number of dirty unmapped pages
by how much unmapped memory there was in the system.
That makes no sense any more, since now the dirty counts include the
mapped pages. Not to mention that the math doesn't work with HIGHMEM
machines anyway, and causes the unmapped_ratio to potentially turn
negative (which we do catch thanks to clamping it at a minimum value,
but I mention that as an indication of how broken the code is).
The code also was written at a time when the default dirty ratio was
much larger, and the unmapped_ratio logic effectively capped that large
dirty ratio a bit. Again, we've since lowered the dirty ratio rather
aggressively, further lessening the point of that code.
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 16 Nov 2007 00:34:00 +0000 (16:34 -0800)]
Merge branch 'master' of /linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[NETFILTER]: Fix NULL pointer dereference in nf_nat_move_storage()
[SUNHME]: VLAN support for sunhme
[CHELSIO]: Fix skb->dev setting.
[NETFILTER]: fix compat_nf_sockopt typo
[INET]: Fix potential kfree on vmalloc-ed area of request_sock_queue
[VIA_VELOCITY]: Don't oops on MTU change.
iwl4965: fix not correctly dealing with hotunplug
rt2x00: Fix chipset revision validation
iwl3945: place CCK rates in front of OFDM for supported rates
mac80211: Fix queuing of scan containing a SSID
Linus Torvalds [Fri, 16 Nov 2007 00:08:49 +0000 (16:08 -0800)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] N32 needs to use the compat version of sys_nfsservctl.
[MIPS] irq_cpu: use handle_percpu_irq handler to avoid dropping interrupts.
[MIPS] Sibyte: Fix name of clocksource.
[MIPS] SNI: s/achknowledge/acknowledge/
[MIPS] Makefile: Fix canonical system names
[MIPS] vpe: handle halting TCs in an errata safe way.
[MIPS] Sibyte: Stop timers before programming next even.
[MIPS] Sibyte: Increase minimum oneshot timer interval to two ticks.
[MIPS] Lasat: Fix overlap of interrupt number ranges.
[MIPS] SNI PCIT CPLUS: workaround for b0rked irq wiring of onboard PCI bus 1
[MIPS] Fix shadow register support.
[MIPS] Change get_cycles to always return 0.
[MIPS] Fix typo in R3000 TRACE_IRQFLAGS code
[MIPS] Sibyte: Replace use of removed IO_SPACE_BASE with IOADDR.
[MIPS] iounmap if in vr41xx_pciu_init() pci clock is over 33MHz
[MIPS] BCM1480: Remove duplicate acknowledge of timer interrupt.
[MIPS] Sibyte: pin timer interrupt to their cores.
[MIPS] Qemu: Add early printk, your friend in a cold night.
[MIPS] Convert reference to mem_map to pfn_to_page().
[MIPS] Sibyte: resurrect old cache hack.
Evgeniy Polyakov [Thu, 15 Nov 2007 23:52:32 +0000 (15:52 -0800)]
[NETFILTER]: Fix NULL pointer dereference in nf_nat_move_storage()
Reported by Chuck Ebbert as:
https://bugzilla.redhat.com/show_bug.cgi?id=259501#c14
This routine is called each time hash should be replaced, nf_conn has
extension list which contains pointers to connection tracking users
(like nat, which is right now the only such user), so when replace takes
place it should copy own extensions. Loop above checks for own
extension, but tries to move higer-layer one, which can lead to above
oops.
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chris Poon [Thu, 15 Nov 2007 23:38:45 +0000 (15:38 -0800)]
[SUNHME]: VLAN support for sunhme
This patch enables VLAN support on sunhme by increasing BMAC_TXMAX/BMAC_RXMAX
and allocating extra space via skb_put for the VLAN header.
Signed-off-by: Chris Poon <dev-null@telus.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ralf Baechle [Thu, 15 Nov 2007 22:20:33 +0000 (22:20 +0000)]
[MIPS] N32 needs to use the compat version of sys_nfsservctl.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Thu, 15 Nov 2007 19:37:15 +0000 (19:37 +0000)]
[MIPS] irq_cpu: use handle_percpu_irq handler to avoid dropping interrupts.
This matters to any sort of device that is wired to one of the CPU
interrupt pins on an SMP system. Typically the scenario is most easily
triggered with the count/compare timer interrupt where the same interrupt
number and thus irq_desc is used on each processor.
CPU A CPU B
do_IRQ()
generic_handle_irq()
handle_level_irq()
spin_lock(desc_lock)
set IRQ_INPROGRESS
spin_unlock(desc_lock)
do_IRQ()
generic_handle_irq()
handle_level_irq()
spin_lock(desc_lock)
IRQ_INPROGRESS set => bail out
spin_lock(desc_lock)
clear IRQ_INPROGRESS
spin_unlock(desc_lock)
In case of the cp0 compare interrupt this means the interrupt will be
acked and not handled or re-armed on CPU b, so there won't be any timer
interrupt until the count register wraps around.
With kernels 2.6.20 ... 2.6.23 we usually were lucky that things were just
working right on VSMP because the count registers are synchronized on
bootup so it takes something that disables interrupts for a long time on
one processor to trigger this one.
For scenarios where an interrupt is multicasted or broadcasted over several
CPUs the existing code was safe and the fix will break it. There is no
way to know in the interrupt controller code because it is abstracted from
the platform code. I think we do not have such a setup currently, so this
should be ok.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 13 Nov 2007 00:35:13 +0000 (00:35 +0000)]
[MIPS] Sibyte: Fix name of clocksource.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Maciej W. Rozycki [Mon, 12 Nov 2007 17:32:48 +0000 (17:32 +0000)]
[MIPS] SNI: s/achknowledge/acknowledge/
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Maciej W. Rozycki [Mon, 12 Nov 2007 17:30:52 +0000 (17:30 +0000)]
[MIPS] Makefile: Fix canonical system names
The GNU `config.guess' uses "linux-gnu" as the canonical system name.
Fix the list of compiler prefixes checked to spell it correctly.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Nigel Stephens [Thu, 8 Nov 2007 13:25:51 +0000 (13:25 +0000)]
[MIPS] vpe: handle halting TCs in an errata safe way.
Adds a JR.HB after halting a TC, to ensure that the TC has really halted.
only modifies the TCSTATUS register when the TC is safely halted.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Sun, 11 Nov 2007 17:33:55 +0000 (17:33 +0000)]
[MIPS] Sibyte: Stop timers before programming next even.
We have no guarantee by the generic time code that the timer is stopped
when the ->next_event method is called. Modifying the Timer Initial Count
register while the timer is enabled has UNPREDICTABLE effect according to
the BCM1250/BCM1125/BCM1125H User Manual. So stop the timer before
reprogramming.
This is a paranoia fix; no ill effects have been observed previously.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Sun, 11 Nov 2007 17:24:46 +0000 (17:24 +0000)]
[MIPS] Sibyte: Increase minimum oneshot timer interval to two ticks.
For the old minimum of a single tick a value of zero would be programmed
into the init value register which in the BCM1250/BCM1125/BCM1125H User
Manual in the Timer Special Cases section is documented to have
UNPREDICTABLE effect.
Observable sympthoms of this bug were hangs of several seconds on the
console during bootup and later if both dyntick and highres timer options
were activated.
In theory contiguous mode of the timers is also affected but in an act of
hopeless lack of realism I'll assume nobody will ever configure a KERNEL
for HZ > 500kHz but if so I leave that to evolution to sort out.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Fri, 9 Nov 2007 09:42:35 +0000 (18:42 +0900)]
[MIPS] Lasat: Fix overlap of interrupt number ranges.
The range of MIPS_CPU IRQ and the range of LASAT IRQ overlap.
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Thomas Bogendoerfer [Thu, 8 Nov 2007 21:09:11 +0000 (22:09 +0100)]
[MIPS] SNI PCIT CPLUS: workaround for b0rked irq wiring of onboard PCI bus 1
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Thu, 8 Nov 2007 18:02:29 +0000 (18:02 +0000)]
[MIPS] Fix shadow register support.
Shadow register support would not possibly have worked on multicore
systems. The support code for it was also depending not on MIPS R2 but
VSMP or SMTC kernels even though it makes perfect sense with UP kernels.
SR sets are a scarce resource and the expected usage pattern is that
users actually hardcode the register set numbers in their code. So fix
the allocator by ditching it. Move the remaining CPU probe bits into
the generic CPU probe.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Thu, 8 Nov 2007 11:37:47 +0000 (11:37 +0000)]
[MIPS] Change get_cycles to always return 0.
This avoids us executing an mfc0 c0_count instruction on processors which
don't have but also on certain R4000 and R4400 versions where reading from
the count register just in the very moment when its value equals
c0_compare will result in the timer interrupt getting lost.
There is still a number of users of get_cycles remaining outside the
arch code:
crypto/tcrypt.c: start = get_cycles();
crypto/tcrypt.c: end = get_cycles();
crypto/tcrypt.c: start = get_cycles();
crypto/tcrypt.c: end = get_cycles();
crypto/tcrypt.c: start = get_cycles();
crypto/tcrypt.c: end = get_cycles();
drivers/char/hangcheck-timer.c: return get_cycles();
drivers/char/hangcheck-timer.c: printk("Hangcheck: Using get_cycles().\n");
drivers/char/random.c: sample.cycles = get_cycles();
drivers/input/joystick/analog.c:#define GET_TIME(x) do { x = get_cycles(); }
include/linux/arcdevice.h: _x = get_cycles(); \
include/linux/arcdevice.h: _y = get_cycles(); \
mm/slub.c: if (!s->defrag_ratio || get_cycles() % 1024 > s->defrag_ratio)
mm/slub.c: p += 64 + (get_cycles() & 0xff) * sizeof(void *);
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Atsushi Nemoto [Tue, 6 Nov 2007 16:08:48 +0000 (01:08 +0900)]
[MIPS] Fix typo in R3000 TRACE_IRQFLAGS code
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 6 Nov 2007 00:43:51 +0000 (00:43 +0000)]
[MIPS] Sibyte: Replace use of removed IO_SPACE_BASE with IOADDR.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Roel Kluin [Sun, 4 Nov 2007 12:00:06 +0000 (13:00 +0100)]
[MIPS] iounmap if in vr41xx_pciu_init() pci clock is over 33MHz
iounmap if pci clock is over 33MHz. Cosmetic because the iomap() in this
case is just a bit of address magic.
Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Mon, 5 Nov 2007 00:29:45 +0000 (00:29 +0000)]
[MIPS] BCM1480: Remove duplicate acknowledge of timer interrupt.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Mon, 5 Nov 2007 00:18:05 +0000 (00:18 +0000)]
[MIPS] Sibyte: pin timer interrupt to their cores.
Or strange things will happen.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Sun, 4 Nov 2007 04:49:44 +0000 (04:49 +0000)]
[MIPS] Qemu: Add early printk, your friend in a cold night.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Sun, 4 Nov 2007 04:42:03 +0000 (04:42 +0000)]
[MIPS] Convert reference to mem_map to pfn_to_page().
This was crashing the combination of highmem and sparsemem.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Sat, 3 Nov 2007 01:01:37 +0000 (01:01 +0000)]
[MIPS] Sibyte: resurrect old cache hack.
The recent switch of the Sibyte SOCs from the processor specific cache
managment code in c-sb1.c to c-r4k.c lost this old hack
[MIPS] Hack for SB1 cache issues
Removing flush_icache_page a while ago broke SB1 which was using an empty
flush_data_cache_page function. This glues things well enough so a more
efficient but also more intrusive solution can be found later.
Signed-Off-By: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
in the hope it was no longer needed. As it turns it still is so resurrect
it until there is a better solution.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Divy Le Ray [Thu, 15 Nov 2007 23:06:32 +0000 (15:06 -0800)]
[CHELSIO]: Fix skb->dev setting.
eth_type_trans() now sets skb->dev. Access skb->def after it gets
set.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Thu, 15 Nov 2007 22:29:21 +0000 (14:29 -0800)]
[NETFILTER]: fix compat_nf_sockopt typo
It should pass opt to the ->get/->set functions, not ops.
Tested-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Thu, 15 Nov 2007 20:14:52 +0000 (12:14 -0800)]
Merge git://git./linux/kernel/git/mingo/linux-2.6-sched
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:
sched: reorder SCHED_FEAT_ bits
sched: make sched_nr_latency static
sched: remove activate_idle_task()
sched: fix __set_task_cpu() SMP race
sched: fix SCHED_FIFO tasks & FAIR_GROUP_SCHED
sched: fix accounting of interrupts during guest execution on s390
Ingo Molnar [Thu, 15 Nov 2007 19:57:40 +0000 (20:57 +0100)]
sched: reorder SCHED_FEAT_ bits
reorder SCHED_FEAT_ bits so that the used ones come first. Makes
tuning instructions easier.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Adrian Bunk [Thu, 15 Nov 2007 19:57:40 +0000 (20:57 +0100)]
sched: make sched_nr_latency static
sched_nr_latency can now become static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Dmitry Adamushko [Thu, 15 Nov 2007 19:57:40 +0000 (20:57 +0100)]
sched: remove activate_idle_task()
cpu_down() code is ok wrt sched_idle_next() placing the 'idle' task not
at the beginning of the queue.
So get rid of activate_idle_task() and make use of activate_task() instead.
It is the same as activate_task(), except for the update_rq_clock(rq) call
that is redundant.
Code size goes down:
text data bss dec hex filename
47853 3934 336 52123 cb9b sched.o.before
47828 3934 336 52098 cb82 sched.o.after
Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Dmitry Adamushko [Thu, 15 Nov 2007 19:57:40 +0000 (20:57 +0100)]
sched: fix __set_task_cpu() SMP race
Grant Wilson has reported rare SCHED_FAIR_USER crashes on his quad-core
system, which crashes can only be explained via runqueue corruption.
there is a narrow SMP race in __set_task_cpu(): after ->cpu is set up to
a new value, task_rq_lock(p, ...) can be successfuly executed on another
CPU. We must ensure that updates of per-task data have been completed by
this moment.
this bug has been hiding in the Linux scheduler for an eternity (we never
had any explicit barrier for task->cpu in set_task_cpu() - so the bug was
introduced in 2.5.1), but only became visible via set_task_cfs_rq() being
accidentally put after the task->cpu update. It also probably needs a
sufficiently out-of-order CPU to trigger.
Reported-by: Grant Wilson <grant.wilson@zen.co.uk>
Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Oleg Nesterov [Thu, 15 Nov 2007 19:57:40 +0000 (20:57 +0100)]
sched: fix SCHED_FIFO tasks & FAIR_GROUP_SCHED
Suppose that the SCHED_FIFO task does
switch_uid(new_user);
Now, p->se.cfs_rq and p->se.parent both point into the old
user_struct->tg because sched_move_task() doesn't call set_task_cfs_rq()
for !fair_sched_class case.
Suppose that old user_struct/task_group is freed/reused, and the task
does
sched_setscheduler(SCHED_NORMAL);
__setscheduler() sets fair_sched_class, but doesn't update
->se.cfs_rq/parent which point to the freed memory.
This means that check_preempt_wakeup() doing
while (!is_same_group(se, pse)) {
se = parent_entity(se);
pse = parent_entity(pse);
}
may OOPS in a similar way if rq->curr or p did something like above.
Perhaps we need something like the patch below, note that
__setscheduler() can't do set_task_cfs_rq().
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Christian Borntraeger [Thu, 15 Nov 2007 19:57:39 +0000 (20:57 +0100)]
sched: fix accounting of interrupts during guest execution on s390
Currently the scheduler checks for PF_VCPU to decide if this timeslice
has to be accounted as guest time. On s390 host interrupts are not
disabled during guest execution. This causes theses interrupts to be
accounted as guest time if CONFIG_VIRT_CPU_ACCOUNTING is set. Solution
is to check if an interrupt triggered account_system_time. As the tick
is timer interrupt based, we have to subtract hardirq_offset.
I tested the patch on s390 with CONFIG_VIRT_CPU_ACCOUNTING and on
x86_64. Seems to work.
CC: Avi Kivity <avi@qumranet.com>
CC: Laurent Vivier <Laurent.Vivier@bull.net>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Linus Torvalds [Thu, 15 Nov 2007 19:01:07 +0000 (11:01 -0800)]
Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
i2c/eeprom: Recognize VGN as a valid Sony Vaio name prefix
i2c/eeprom: Hide Sony Vaio serial numbers
i2c-pasemi: Fix NACK detection
i2c-pasemi: Replace obsolete "driverfs" reference with "sysfs"
i2c: Make i2c_check_addr static
i2c-dev: Unbound new-style i2c clients aren't busy
i2c-dev: "how does it work" comments
Jean Delvare [Thu, 15 Nov 2007 18:24:03 +0000 (19:24 +0100)]
i2c/eeprom: Recognize VGN as a valid Sony Vaio name prefix
Recent (i.e. 2005 and later) Sony Vaio laptops have names beginning
with VGN rather than PCG. Update the eeprom driver so that it
recognizes these.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Jean Delvare [Thu, 15 Nov 2007 18:24:03 +0000 (19:24 +0100)]
i2c/eeprom: Hide Sony Vaio serial numbers
The sysfs interface to DMI data takes care to not make the system
serial number and UUID world-readable, presumably due to privacy
concerns. For consistency, we should not let the eeprom driver
export these same strings to the world on Sony Vaio laptops.
Instead, only make them readable by root, as we already do for BIOS
passwords.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Olof Johansson [Thu, 15 Nov 2007 18:24:02 +0000 (19:24 +0100)]
i2c-pasemi: Fix NACK detection
Turns out we don't actually check the status to see if there was a
device out there to talk to, just if we had a timeout when doing so.
Add the proper check, so we don't falsly think there are devices
on the bus that are not there, etc.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Robert P. J. Day [Thu, 15 Nov 2007 18:24:02 +0000 (19:24 +0100)]
i2c-pasemi: Replace obsolete "driverfs" reference with "sysfs"
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Jean Delvare [Thu, 15 Nov 2007 18:24:02 +0000 (19:24 +0100)]
i2c: Make i2c_check_addr static
i2c_check_addr is only used inside i2c-core now, so we can make it
static and stop exporting it. Thanks to David Brownell for noticing.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Jean Delvare [Thu, 15 Nov 2007 18:24:01 +0000 (19:24 +0100)]
i2c-dev: Unbound new-style i2c clients aren't busy
Let i2c-dev deal properly with new-style i2c clients. Instead of
considering them always busy, it needs to check wether a driver is
bound to them or not.
This is still not completely correct, as the client could become
busy later, but the same problem already existed before new-style
clients were introduced. We'll want to fix it someday.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
David Brownell [Thu, 15 Nov 2007 18:24:01 +0000 (19:24 +0100)]
i2c-dev: "how does it work" comments
This adds some "how does this work" comments to the i2c-dev driver,
plus separators between the three main components:
- The parallel list of i2c_adapters ("i2c_dev_list"), each of which
gets a "struct i2c_dev" and a /dev/i2c-X character special file.
- An i2cdev_driver gets adapter add/remove notifications, which are
used to maintain that list of adapters.
- Special file operations, which let userspace talk either directly to
the adapter (for i2c_msg operations) or through cached addressing info
using an anonymous i2c_client (never registered anywhere).
Plus there's the usual module load/unload record keeping.
After making sense of this code, I think that the anonymous i2c_client
is pretty shady. But since it's never registered, using this code with
a system set up for "new style" I2C drivers is no more complicated than
always using the I2C_SLAVE_FORCE ioctl (instead of I2C_SLAVE).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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