Since we have board-specific defconfigs and the default is set to BF537-STAMP, we no longer need this one
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Fix a real section mismatch issue; the test code is thrown away after
initialisation, but if we do not detect the VFP hardware, it is left
hooked into the exception handler. Any VFP instructions which are
subsequently executed risk calling the discarded exception handler.
Introduce a new "null" handler which returns to the "unrecognised
fault" return address.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: Handle PCI bridges without 'ranges' property.
[SPARC64]: Include <linux/rwsem.h> instead of <asm/rwsem.h>.
We aren't sampling for holes in memory. Thus we encounter a section hole
with empty section map pointer for SPARSEMEM and OOPs for show_mem. This
issue has been seen in 2.6.21, current git and current mm. The patch below
is for mainline and mm. It was boot tested for SPARSEMEM, current VMEMMAP
of Andy's in mm ml and DISCONTIGMEM. A slightly different patch will be
posted to stable for 2.6.21.
Previous to commit f0a5a58aa8 memory_present
was called for node_start_pfn to node_end_pfn. This would cover the
hole(s) with reserved pages and valid sections. Most SPARSEMEM supported
arches do a pfn_valid check in show_mem before computing the page structure
address.
This issue was brought to my attention on IRC by Arnaldo Carvalho de Melo.
Thanks to Arnaldo for testing.
Signed-off-by: Bob Picco <bob.picco@hp.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Include linux/kernel.h wherever simple_strtoul is used. This kills a
compile warning in stderr_console.c and potential ones in the other files.
This also fixes a bunch of style violations in exitcode.c.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Force KERNEL_STACK_ORDER to be at least 1 on UML/x86_64, to avoid overflows.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix various bits of obviously-busted code which we're not happening to
compile, due to ifdefs.
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Andi Kleen <ak@suse.de>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The coldfire timer runs from 0 to TRR included, then 0 again and so on. It
counts thus actually TRR + 1 steps for 1 tick, not TRR. Fix that.
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This fixes the IDE controller not showing up on Netra-T1
systems.
Just like Simba bridges, some PCI bridges can lack the
'ranges' OBP property. So we handle this similarly to
the existing Simba code:
1) In of_device register address resolving, we push the
translation to the parent.
2) In PCI device scanning, we interrogate the PCI config
space registers of the PCI bus device in order to resolve
the resources, just like the generic Linux PCI probing
code does.
With much help and testing from Fabio, who also reported
the initial problem.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Fabio Massimo Di Nitto <fabbione@ubuntu.com>
To be consistent with other architectures, include the generic version
of rwsem.h.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* git://git.linux-xtensa.org/kernel/xtensa-feed:
Xtensa: use asm-generic/fcntl.h
[XTENSA] Remove non-rt signal handling
[XTENSA] Move common sections into bss sections
[XTENSA] clean-up header files
[XTENSA] Use generic 64-bit division
[XTENSA] Remove multi-exported symbols from xtensa_ksyms.c
[XTENSA] fix sources using deprecated assembler directive
[XTENSA] Spelling fixes in arch/xtensa
[XTENSA] fix bit operations in bitops.h
This is a minor fix, but what is currently there is essentially wrong.
In do_page_fault, if the faulting address from user code happens to be
in kernel address space (int *p = (int*)-1; p = 0xbed;) then the
do_page_fault handler will jump over the local_irq_enable with the
goto bad_area_nosemaphore;
But the first line there sees this is user code and goes through the
process of sending a signal to send SIGSEGV to the user task. This whole
time interrupts are disabled and the task can not be preempted by a
higher priority task.
This patch always enables interrupts in the user path of the
bad_area_nosemaphore.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] Fix warning by moving do_default_vi into CONFIG_CPU_MIPSR2_SRS
[MIPS] Fix some minor typoes in arch/mips/Kconfig.
[MIPS] Remove prototype for deleted function qemu_handle_int
[MIPS] Fix some system calls with long long arguments
[MIPS] Make dma_map_sg handle sg elements which are longer than one page
[MIPS] Drop __ARCH_WANT_SYS_FADVISE64
[MIPS] Fix VGA corruption on RM300C
[MIPS] RM300: Fix MMIO problems by marking the PCI INT ACK region busy
[MIPS] EMMA2RH: remove dead KGDB code
[MIPS] Remove duplicate fpu enable hazard code.
[MIPS] Atlas, Malta, SEAD: Remove scroll from interrupt handler.
We used to access the 64-bit IRQ IMAP and ICLR registers of bus
controllers 4-bytes in and as a 32-bit register word, since only the
low 32-bits were relevant. This seemed like a good idea at the time.
But the PCI-E controller requires full 8-byte 64-bit access to
these registers, so we switched over to accessing them fully.
SBUS was not adjusted properly, which broke interrupts completely.
Signed-off-by: David S. Miller <davem@davemloft.net>
If we are on hummingbird, bus runs at 66MHZ.
pbm->pci_bus should be setup with the result of pci_scan_one_pbm()
or else we deref NULL pointers in the error interrupt handlers.
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[VIDEO] sunxvr500fb: Fix pseudo_palette array size
[VIDEO] sunxvr2500fb: Fix pseudo_palette array size
[VIDEO] ffb: The pseudo_palette is only 16 elements long
[VIDEO]: Fix section mismatch warning in promcon.
[ATA]: Back out bogus (SPARC64 && !PCI) Kconfig depends.
[SPARC64]: Fill in gaps in non-PCI dma_*() NOP implementation.
[SPARC64]: Fix {mc,smt}_capable().
[SPARC64]: Make core and sibling groups equal on UltraSPARC-IV.
[SPARC64]: Proper multi-core scheduling support.
[SPARC64]: Provide mmu statistics via sysfs.
[SPARC64]: Fix service channel hypervisor function names.
[SPARC64]: Export basic cpu properties via sysfs.
[SPARC64]: Move topology init code into new file, sysfs.c
The COFF zImage (for booting oldworld powermacs) wasn't being built
correctly because the procedure descriptor in crt0.S for the zImage
entry point wasn't declared as .globl, and therefore wasn't getting
pulled in from wrapper.a by the linker. This adds the necessary
.globl statement.
Signed-off-by: Paul Mackerras <paulus@samba.org>
The error path in spufs_fill_dir() is broken. If d_alloc_name() or
spufs_new_file() fails, spufs_prune_dir() is getting called. At this time
dir->inode is not set and a NULL pointer is dereferenced by mutex_lock().
This bugfix replaces spufs_prune_dir() with a shorter version that does
not touch dir->inode but simply removes all children.
Signed-off-by: Sebastian Siewior <bigeasy@linux.vnet.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nosched context sould never be scheduled out, thus we must not
deactivate them in spu_yield ever.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
scc_sio.o should only be built if the txx9 serial driver is actually
built into the kernel.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
--
Signed-off-by: Paul Mackerras <paulus@samba.org>
... and get rid of cpufreq_set_policy call that caused a build
failure due interfering commits.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
We had a problem on a system with only dynamically allocated
PCI buses (using of_pci_phb_driver) in combination with libata.
This setup ended up having no "primary" phb, which means
that pci_io_base never got initialized and all IO port
numbers are 64 bit numbers, which is larger than the
PIO_MASK limit.
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Fix the race between checking for contexts on the runqueue and actually
waking them in spu_deactive and spu_yield.
The guts of spu_reschedule are split into a new helper called
grab_runnable_context which shows if there is a runnable thread below
a specified priority and if yes removes if from the runqueue and uses
it. This function is used by the new __spu_deactivate hepler shared
by preemption and spu_yield to grab a new context before deactivating
a specified priority and if yes removes if from the runqueue and uses
it. This function is used by the new __spu_deactivate hepler shared
by preemption and spu_yield to grab a new context before deactivating
the old one.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Make sure the mapping_lock also protects access to the various address_space
pointers used for tearing down the ptes on a spu context switch.
Because unmap_mapping_range can sleep we need to turn mapping_lock from
a spinlock into a sleeping mutex.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
In case spufs_fill_dir() fails only put_spu_context()
gets called for cleanup and the acquired mm_struct never gets freed.
Signed-off-by: Sebastian Siewior <bigeasy@linux.vnet.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Previously, closing a SPE gang that still has contexts would trigger
a WARN_ON, and leak the allocated gang.
This change fixes the problem by using the gang's reference counts to
destroy the gang instead. The gangs will persist until their last
reference (be it context or open file handle) is gone.
Also, avoid using statements with side-effects in a WARN_ON().
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Currently spufs_mem_release and the mem file doesn't have any release
method hooked up, leading to leaks everytime is used.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
As noticed by David Woodhouse, it's currently possible to mount
spufs on any machine, which means that it actually will get
mounted by fedora.
This refuses to load the module on platforms that have no
support for SPUs.
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The powerpc iommu code was refactored by Linas back in the 2.6.20 time
frame to map 4K pages from the generic code, but I had forgotten to go
back and fix my platform driver before submitting it.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This fixes the warning:
arch/mips/kernel/traps.c:931: warning: 'do_default_vi' defined but not used
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* O32 fadvise64() pass long long arguments by register pairs. Add
sys32 version for 64 bit kernel.
* N32 readahead() can pass a long long argument by one register. No
need to use sys32_readahead.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
... by setting DRAM config to 2MB (SNI always used that size). This also
fixes video dram size detection in cirrusfb.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Get rid of the cross-arch KGDB specific code which shouldn't have been
there in the first place...
Signed-off-by: Sergey Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Aside of being handy for debugging this has never been a particularly
good idea but is now getting in the way of dyntick / tickless kernels
and general cleanups.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
It's not just sun4v hypervisor platforms that should return true
for this, sun4u with UltraSPARC-IV should return true too.
Signed-off-by: David S. Miller <davem@davemloft.net>
The scheduling domain hierarchy is:
all cpus -->
cpus that share an instruction cache -->
cpus that share an integer execution unit
Signed-off-by: David S. Miller <davem@davemloft.net>
If the system supports hypervisor based statistics, allow them to
be fetched, enabled, and disabled via sysfs.
Enable and disable via the boolean:
/sys/devices/systems/cpu/cpuN/mmustat_enable
Statistic values are provided under:
/sys/devices/systems/cpu/cpuN/mmu_status/
Signed-off-by: David S. Miller <davem@davemloft.net>
Also, use per-cpu data for struct cpu. Calling kmalloc for
each cpu in topology_init() is just plain clumsy.
Signed-off-by: David S. Miller <davem@davemloft.net>
Rafael gets this on an SMP box with kernel preemption enabled, during
hibernation and restore (100% of the time):
Enabling non-boot CPUs ...
BUG: using smp_processor_id() in preemptible [00000001] code: bash/4514
caller is mtrr_save_state+0x9/0x40
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
check_ivt had some seriously broken code wrt function pointers on
parisc64. Instead of referencing the hpmc code via a function pointer,
export symbols and reference it as a const array.
Thanks to jda for pointing out the broken 64-bit func ptr handling.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
With the SH7722 changes, ->set_rate() also takes an algo_id,
SH4-202 was overlooked when this change went in.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
If CONFIG_KGDB_NMI is disabled, we're left with a stray in_nmi
reference that can't be resolved. Move the symbol under the ifdef,
too.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
The bug was that we were comparing __NR_syscalls to be greater or equal
to the syscall number stored in %r20. __NR_syscalls is one greater than
the last syscall though, so we're loading one entry beyond the end of the
syscall table, and trying to jump to it.
Fix this by only checking that we're greater, alternatively, we could
have compared to (__NR_Linux_syscalls - 1)
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
BUG: using smp_processor_id() in preemptible [00000001] code: opcontrol/427
Resolve this bug by ensuring that we're not using smp_processor_id() in
a preemptable context (by disabling preemption.)
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
When suspending to slow-clock mode, at91_pm_verify_clocks() is called to
ensure that all the clocks are disabled or in the correct state.
This patch replaces the "#warning TODO" messages for the SAM9 processors
with the correct code.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The number of programmable clocks available on the AT91 processors can
differ, therefore do not always display the contents of the PMC_PCKR(0)
.. PMC_PCKR(3) registers (ie, assume there are 4 clocks).
If CONFIG_AT91_PROGRAMMABLE_CLOCKS is enabled, the programmable clocks
will be registered like the other system/peripheral clocks, and the
state of the programmable clocks will be displayed like with the other
clocks.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARMv7 support code requires a valid stack for saving/restoring
registers as the whole D-cache flushing function is more complex. This
patch ensures that the SP register is not corrupted.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Commit 9da82a6dee inadvertently
removed the platform override for zImage.coff to be generated
with pmaccoff. Rather than add a special makefile rule,
change the platform for which the wrapper platform uses
the special rules.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The IBM/AMCC 405 platforms don't compile anymore in the current
kernel version. This fixes the compile breakage.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
There is a thinko in the irq code, it uses IRQ_NONE to indicate no irq,
whereas it should be using NO_IRQ. IRQ_NONE is returned from irq
handlers to say "not handled".
As it happens they currently have the same value (0), so this is just for
future proof-ness.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
In 616883df78 request_irq was marked as
__must_check so we must... er... check it.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
In the bootwrapper code for powerpc, we include HOSTCFLAGS into the
BOOTCFLAGS used for building the zImage wrapper code. Since the
wrapper code is not host code, this makes no sense. This patch
removes the use of HOSTCFLAGS here, instead including directly into
BOOTCFLAGS those flags from the normal kernel CFLAGS which also make
sense in the bootwrapper code.
In particular, this makes the bootwrapper use -msoft-float, preventing
the compiler from generating floating point instructions. Previously,
under some circumstances the compiler could generate floating point
instructions in the bootwrapper which would cause exceptions on
embedded CPUS which don't have floating point support.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This zImage is really just the stripped vmlinux, but it means that there
is one less special case for iSeries and also that the zImages will be
built for a combined kernel build that happens to include iSeries.
This zImage boots fine on legacy iSeries.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
and so needs to include asm/smp.h so a UP build works.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
and so needs to include asm/smp.h for a UP build to work.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The recent addition of assembler flags for 44x.c and ebony.c in the
bootwrapper to make them compile on certain toolchains was not correct
and could break other platforms. This patch switches to using a
compiler flag instead, which implies the appropriate assembler flag,
and also stops the compiler itself generating instructions which are
invalid for the platform in question.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The ppc32 kernel didn't properly set/clear the TIF_SINGLESTEP
flag, causing return from syscalls to not SIGTRAP, thus executing
one more instruction before stopping again.
This fixes it. The ptrace code is a bit of a mess, and is overdue
for at least a -proper- 32/64 bits split and possibly more cleanups
but this minimum fix should be ok for 2.6.22
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The documentation for of_find_node_by_type() incorrectly refers to the
"name" parameter - it should be "type".
Also the behaviour when from == NULL is not really documented, fix that.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Fix the following section mismatch warnings in microcode.c:
WARNING: arch/i386/kernel/built-in.o(.init.text+0x3966): Section mismatch: reference to .exit.text: (between 'microcode_init' and 'parse_maxcpus')
WARNING: arch/i386/kernel/built-in.o(.init.text+0x3992): Section mismatch: reference to .exit.text: (between 'microcode_init' and 'parse_maxcpus')
The warning are caused by a function marked __init that
calls a function marked __exit.
Functions marked __exit may be discarded either during link or run-time
and thus the reference is not good.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1. arch/alpha/Kconfig
several adjustments:
a) additions to the systems list and cleanup of same
b) change limits of NR_CPUS and make dep. on platform
Note that MARVEL support is limited to 32 CPUs whan using
42-bit KSEG - one needs 48-bit KSEG to handle up to 64, and
we've never supported 48-bit KSEG.
2. include/asm-alpha/core_wildfire.h
fix a typo that undoubtedly prevents WILDFIRE support
from working
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This code replaces earlier and incomplete handling of graphics on non-zero PCI
domains (aka hoses or peer PCI buses).
An option (CONFIG_VGA_HOSE) is set TRUE if configuring a GENERIC kernel, or a
kernel for MARVEL, TITAN, or TSUNAMI machines, as these are the machines whose
SRM consoles are capable of configuring and handling graphics options on
non-zero hoses. All other machines have the option set FALSE.
A routine, "find_console_vga_hose()", is used to find the graphics device
which the machine's firmware believes is the console device, and it sets a
global (pci_vga_hose) for later use in managing access to the device. This is
called in "init_arch" on TITAN and TSUNAMI machines; MARVEL machines use a
custom version of this routine because of extra complexity.
A routine, "locate_and_init_vga()", is used to find the graphics device and
set a global (pci_vga_hose) for later use in managing access to the device, in
the case where "find_console_vga_hose" has failed.
Various adjustments are made to the ioremap and ioportmap routines for
detecting and translating "legacy" VGA register and memory references to the
real PCI domain.
[akpm@linux-foundation.org: don't statically init bss]
[akpm@linux-foundation.org: build fix]
Signed-off-by: Jay Estabrook <jay.estabrook@hp.com>
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- warning fix.
- call trace area check fix.
- There is no meaning, ' & ' it deletes
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Force Dell E520 to use the BIOS to shutdown/reboot.
I have at least one report that this patch fixes shutdown/reboot
problems on the Dell E520 platform.
(Andi says: People can always set the boot option. It hardly seems like a
critical issue needing a backport.)
Signed-off-by: Tim Gardner <tim.gardner@ubuntu.com>
Acked-by: Andi Kleen <ak@suse.de>
Acked-by: Matt Domsch <Matt_Domsch@dell.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chuck reports that the recent fix from Andi to oprofile
6c977aad03 introduces a double free. Each
cpu's cpu_msrs is setup to point to cpu 0's, which causes free_msrs to free
cpu 0's pointers for_each_possible_cpu. Rather than copy the pointers, do
a deep copy instead.
[acme@redhat.com: allocate_msrs() was using for_each_online_cpu()]
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dave Jones <davej@redhat.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix various bits of obviously-busted code which we're not happening to
compile, due to ifdefs.
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Jan Kara <jack@ucw.cz>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On systems with huge amount of physical memory, VFS cache and memory memmap
may eat all available system memory under 4G, then the system may fail to
allocate swiotlb bounce buffer.
There was a fix for this issue in arch/x86_64/mm/numa.c, but that fix dose
not cover sparsemem model.
This patch add fix to sparsemem model by first try to allocate memmap above
4G.
Signed-off-by: Zou Nan hai <nanhai.zou@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The non-rt signal handling was never really used, so we don't break
anything. This patch also cleans up the signal stack-frame to make
it independent from the processor configuration. It also improves
the method used for controlling single-stepping. We now save and
restore the 'icountlevel' register that controls single stepping
and set or clear the saved state to enable or disable it.
Signed-off-by: Chris Zankel <chris@zankel.net>
Move the fields of the COMMON sections 'swapper_pg_dir' and
'empty_zero_page' to the BSS section. Remove the unused COMMON
sections 'emtpy_bad_page_table' and 'empty_bad_page'.
Signed-off-by: Chris Zankel <chris@zankel.net>
The header files in the asm-xtensa directory are not clean and
'make headers_check' fails. This is a first patch to fix most of
the header files. It removes unnecessary include statements and
adds some that are required for building the kernel. The linker
script required some updates or the linking stage would fail.
Signed-off-by: Chris Zankel <chris@zankel.net>
This patch removes the following symbols from
arch/xtensa/kernel/xtensa_ksyms.c that were already exported:
memcmp, memchr, strcat, strchr, strlen, stncat, strnlen, strrchr,
strstr, enable_irq, and disable_irq
Signed-off-by: Chris Zankel <chris@zankel.net>
The assembler directive '.begin literal' is deprecated in the newer
versions of the binutils (strncopy_user.S and strnlen_user.S).
Signed-off-by: Chris Zankel <chris@zankel.net>
Wolfgang gets:
PCI: Cannot allocate resource region 0 of device 0000:00:04.0
PCI: Error while updating region 0000:00:04.0/0 (a8008000 != fec08000)
Note that the BAR seems to have high address bits hardwired to fec00000.
And device 0000:00:04.0 is
00:04.0 System peripheral: Siemens Nixdorf AG FSC Multiprocessor Interrupt Controller (rev 02)
I'd guess that when we try to reassign this resource, PCI interrupts might
just stop working. This could explain SCSI timeouts and other weird things.
Cc: Wolfgang Erig <Wolfgang.Erig@gmx.de>
Cc: Chuck Ebbert <cebbert@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] cio: deregister ccw device when pgid disband failed
[S390] cio: Use device_schedule_callback() for removing disconnected devices.
[S390] Fix section annotations.
[S390] raw3270: use mutex instead of semaphore
[S390] arch/s390/kernel/debug.c: use mutex instead of semaphore
[S390] dasd_eer: use mutex instead of semaphore
[S390] Add exception handler for diagnose 224
Use the __cpuinit instead of __devinit section annotations for code
that deals with cpu hotplug. In addition add some more annotations on
functions that have been left out so far.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
