- this macro unifies the code to add exception table entries
- additionally use ENTRY()/ENDPROC() at more places
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
And remove it's reference in time.c.
Allow lcd_print() to take a const char *.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
show_stack() was calling kzalloc() to allocate a struct pt_regs.
This meant that *really* early stack dumps would cause a null pointer
dereference. x86_64 allocates its pt_regs on the stack, so do the same.
Kyle actually committed this exact patch to CVS on
Wed Jul 26 14:32:39 2006 UTC, and never moved it across to git.
Bad Kyle.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Al Viro did this for x86-64 and reduced the number of dependencies on
sched.h significantly. We had a couple of files which were relying on
uaccess.h pulling in sched.h, so they need explicit dependencies added.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
acpi_boot_init() is making a bad check on the return
status from acpi_table_parse(). acpi_table_parse() now
returns zero on success, one on failure.
Signed-off-by: Aaron Young <ayoung@sgi.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This is an additional list of systems that exhibit the PCI device ordering
issue that prompted the following patch:
commit 6b4b78fed4
Author: Matt Domsch <Matt_Domsch@dell.com>
Date: Fri Sep 29 15:23:23 2006 -0500
PCI: optionally sort device lists breadth-first
Adding these systems to the list prevents the need for the additional
kernel command line argument.
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
During power outages, the UPS notifies the system for a shutdown.
In the current setup, it isn't possible to poweron when power is
restored. This patch fixes the issue by calling the right
ibm,power-off-ups token during such events. It also adds a sysfs
interface so userspace can specify whether or not to power on when
power is restored.
Signed-off-by: Manish Ahuja <ahuja@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Change the default for the built-in IDE on p610/p615/p630 from
ide to libata. libata has better error handling and the drive can
recover when hald does its CD media polling.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Add function of_get_mac_address(), which obtains the best MAC address to use
from the device tree by checking various properties in order. The order is:
'mac-address', then 'local-mac-address', then 'address'. It skips properties
that contain invalid MAC addresses, which were probably not initialized
by U-Boot.
Update gfar_of_init() and fs_enet_of_init() in fsl_soc.c to call
of_get_mac_address().
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Fix build glitches on ARM ... the only user of "rtc_lock" today is the
optional PC-style "CMOS" RTC driver, the legacy SA1100 RTC driver is
not even in the tree any more.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32:
[AVR32] Use per-controller spi_board_info structures
[AVR32] Warn, don't BUG if clk_disable is called too many times
[AVR32] Make sure all genclocks have a parent
[AVR32] Remove unnecessary sys_nfsservctl conditional
[AVR32] Wire up the SysV IPC calls properly
[AVR32] Define ioremap_nocache, ioport_map and ioport_unmap
[AVR32] Fix prototypes for __raw_writesb and friends
Never mask interrupts immediately upon request. Disabling interrupts in
high-performance codepaths is rare, and on the other hand this change could
recover lost edges (or even other types of lost interrupts) by conservatively
only masking interrupts after they happen. (NOTE: with this change the
highlevel irq-disable code still soft-disables this IRQ line - and if such an
interrupt happens then the IRQ flow handler keeps the IRQ masked.)
Mark i8529A controllers as 'never loses an edge'.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch converts x86_64 to use the GENERIC_TIME infrastructure and adds
clocksource structures for both TSC and HPET (ACPI PM is shared w/ i386).
[akpm@osdl.org: fix printk timestamps]
[akpm@osdl.org: fix printk ckeanups]
[akpm@osdl.org: hpet build fix]
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@muc.de>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In preparation for the x86_64 generic time conversion, this patch splits out
TSC and HPET related code from arch/x86_64/kernel/time.c into respective
hpet.c and tsc.c files.
[akpm@osdl.org: fix printk timestamps]
[akpm@osdl.org: cleanup]
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@muc.de>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In preparation for supporting generic timekeeping, this patch cleans up
x86-64's use of vxtime.hpet_address, changing it to just hpet_address as is
also used in i386. This is necessary since the vxtime structure will be going
away.
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@muc.de>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The local apic timer calibration has two problem cases:
1. The calibration is based on readout of the PIT/HPET timer to detect the
wrap of the periodic tick. It happens that a box gets stuck in the
calibration loop due to a PIT with a broken readout function.
2. CoreDuo boxen show a sporadic PIT runs too slow defect, which results
in a wrong lapic calibration. The PIT goes back to normal operation once
the lapic timer is switched to periodic mode.
Both are existing and unfixed problems in the current upstream kernel and
prevent certain laptops and other systems from booting Linux.
Rework the code to address both problems:
- Make the calibration interrupt driven. This removes the wait_timer_tick
magic hackery from lapic.c and time_hpet.c. The clockevents framework
allows easy substitution of the global tick event handler for the
calibration. This is more accurate than monitoring jiffies. At this point
of the boot process, nothing disturbes the interrupt delivery, so the
results are very accurate.
- Verify the calibration against the PM timer, when available by using the
early access function. When the measured calibration period is outside of
an one percent window, then the lapic timer calibration is adjusted to the
pm timer result.
- Verify the calibration by running the lapic timer with the calibration
handler. Disable lapic timer in case of deviation.
This also removes the "synchronization" of the local apic timer to the global
tick. This synchronization never worked, as there is no way to synchronize
PIT(HPET) and local APIC timer. The synchronization by waiting for the tick
just alignes the local APIC timer for the first events, but later the events
drift away due to the different clocks. Removing the "sync" is just
randomizing the asynchronous behaviour at setup time.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Zachary Amsden <zach@vmware.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Rohit Seth <rohitseth@google.com>
Cc: Andi Kleen <ak@suse.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
