A check if "write > BUF_PAGE_SIZE" is done right after a
if (write > BUF_PAGE_SIZE)
return ...;
Thus the check is actually testing the compiler and not the
kernel. This is useless, remove it.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The index of the event is found by masking PAGE_MASK to it and
subtracting the header size. Currently the header size is calculate
by PAGE_SIZE - BUF_PAGE_SIZE, when we already have a macro
BUF_PAGE_HDR_SIZE to define it.
If we want to change BUF_PAGE_SIZE to something less than filling
the rest of the page (this is done for debugging), then we break
the algorithm to find the index.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Use .code16gcc to compile arch/x86/boot/bioscall.S rather than
.code16, since some older versions of binutils can't generate 32-bit
addressing expressions (67 prefixes) in .code16 mode, only in
.code16gcc mode.
Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This patch causes all the EFI_RESERVED_TYPE memory reservations to be recorded
in the e820 table as type E820_RESERVED.
(This patch replaces one called 'x86: vendor reserved memory type'.
This version has been discussed a bit with Peter and Yinghai but not given
a final opinion.)
Without this patch EFI_RESERVED_TYPE memory reservations may be
marked usable in the e820 table. There may be a collision between
kernel use and some reserver's use of this memory.
(An example use of this functionality is the UV system, which
will access extremely large areas of memory with a memory engine
that allows a user to address beyond the processor's range. Such
areas are reserved in the EFI table by the BIOS.
Some loaders have a restricted number of entries possible in the e820 table,
hence the need to record the reservations in the unrestricted EFI table.)
The call to do_add_efi_memmap() is only made if "add_efi_memmap" is specified
on the kernel command line.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
iomem_resource is by default initialized to -1, which means 64 bits of
physical address space if 64-bit resources are enabled. However, x86
CPUs cannot address 64 bits of physical address space. Thus, we want
to cap the physical address space to what the union of all CPU can
actually address.
Without this patch, we may end up assigning inaccessible values to
uninitialized 64-bit PCI memory resources.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Martin Mares <mj@ucw.cz>
Cc: stable@kernel.org
Ensure the client requested maximum requests are between 1 and
NFSD_MAX_SLOTS_PER_SESSION
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Rename files that are no longer 64bit specific:
mce_amd_64.c => mce_amd.c
mce_intel_64.c => mce_intel.c
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Now all symbols in the header are static. Remove the header.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
move intel_init_thermal() into therm_throt.c
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Put common functions into therm_throt.c, modify Makefile.
unexpected_thermal_interrupt
intel_thermal_interrupt
smp_thermal_interrupt
intel_set_thermal_handler
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Break smp_thermal_interrupt() into two functions.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Remove unused argument regs from handlers, and use inc_irq_stat.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
The mce_disabled on 32bit is a tristate variable [1,0,-1],
while 64bit version is boolean [0,1].
This patch makes mce_disabled always boolean, and use mce_p5_enabled
to indicate the third state instead.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
There are 2 headers:
arch/x86/include/asm/mce.h
arch/x86/kernel/cpu/mcheck/mce.h
and in the latter small header:
#include <asm/mce.h>
This patch move all contents in the latter header into the former,
and fix all files using the latter to include the former instead.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Add sysfs interface for admins who want to tweak these options without
rebooting the system.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
"trigger" is not straight forward name for valiable that holds name
of user mode helper program which triggered by machine check events.
This patch renames this valiable and kins to more recognizable names.
trigger => mce_helper
trigger_argv => mce_helper_argv
notify_user => mce_need_notify
No functional changes.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Add __read_mostly to data written during setup.
Suggested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Simplify interface of mce_start():
- no_way_out = mce_start(no_way_out, &order);
+ order = mce_start(&no_way_out);
Now Monarch and Subjects share same exit(return) in usual path.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
In mce_cpu_restart, mce_init_timer is called unconditionally.
If !mce_available (e.g. mce is disabled), there are no useful work
for timer. Stop running it.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
If one CPU has no_way_out == 1, all other CPUs should have no_way_out
== 1. But despite global_nwo is read after mce_callin, global_nwo is
updated after mce_callin too. So it is possible that some CPU read
global_nwo before some other CPU update global_nwo, so that no_way_out
== 1 for some CPU, while no_way_out == 0 for some other CPU.
This patch fixes this race condition via moving mce_callin updating
after global_nwo updating, with a smp_wmb in between. A smp_rmb is
added between their reading too.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
This patch introduces the Openmoko GTA02 machine definition.
Much of the code is based on Harald Welte's work, although it
has been largely rewritten several times.
This is intended to be the minimum machine definition to boot and
be able to run a rootfs from NAND on GTA02 / FreeRunner. It does
not bring up the framebuffer / Glamo and lacks many other peripheral
drivers from outside the SoC. But once we have this basis in
mainline kernel, we will be able to introduce the other drivers
and add them here.
Thanks to Sven Rebhan <odinshorse@googlemail.com> for his fixes to this
patch (Kconfig and defconfig files).
Signed-off-by: Andy Green <andy@warmcat.com>
Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>
[ben-linux@fluff.org: Fix the GPIO definitions]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This patch provides initial support for CPU frequency scaling on the
Samsung S3C ARM processors. Currently only S3C6410 processors are
supported, though addition of another data table with supported clock
rates should be sufficient to enable support for further CPUs.
Use the regulator framework to provide optional support for DVFS in
the S3C cpufreq driver. When a software controllable regulator is
configured the driver will use it to lower the supply voltage when
running at a lower frequency, giving improved power savings.
When regulator support is disabled or no regulator can be obtained
for VDDARM the driver will fall back to scaling only the frequency.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
send_sigio_to_task() reads fown->signum several times, we can race with
F_SETSIG which changes ->signum lockless. In theory, this can fool
security checks or we can call group_send_sig_info() with the wrong
->si_signo which does not match "int sig".
Change the code to cache ->signum.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This allows the S3C64XX IIS drivers to be converted to the standard
driver model and allows fixes there for problems with attempting to
acquire the clocks for the IIS blocks via the clock API.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Other functions use type bool, so use that for pci_enable_wake as well.
Signed-off-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Changeset 1589a993f0 broke user visible
names of flexcop-pci devices, as it did reorder the enum of card types,
but did not adjust the array containing the card names.
Reorder the names, and uses [FC_AIR_DVBT] = "Air2PC/AirStar 2 DVB-T"
assignment style for more clarity.
It also adds the revision Number to the name for SkyStar rev. 2.3 and rev 2.6
as I think it is useful to see in log output.
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
remove redundant code, which in the past handled the
various components (now independent modules) registrations.
Signed-off-by: Uri Shkolnik <uris@siano-ms.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add new GPIO management interface to replace old (buggy) one.
Keeping old interface intact for now.
Signed-off-by: Uri Shkolnik <uris@siano-ms.com>
Acked-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Make the SDIO interface driver a stand alone module.
Signed-off-by: Uri Shkolnik <uris@siano-ms.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add two additional USB targets, add these to the 'cards' modules
and to the 'smsusb' module.
Signed-off-by: Uri Shkolnik <uris@siano-ms.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Change the debug message of the USB interface driver exit
function.
Signed-off-by: Uri Shkolnik <uris@siano-ms.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix bug that cause error log to echo also if success
Signed-off-by: Uri Shkolnik <uris@siano-ms.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
