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- Collect extern declarations at top of file.
- Change raw_printk to printk, use oops_in_progress instead.
- Fix formatting and whitespace.
- Allow the watchdog to be disabled during oops.
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- Only disallow oops if we're in_interrupt context (was in_atomic before)
- Use the generic oops_in_progress instead of the raw_printk hack.
- Fix whitespace/formatting.
- Remove CVS log entries.
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Now uses a DMA descriptor ring, which should avoid any unnecessary
pauses in the streams.
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and ARTPEC-3 chips.
The header files describe the hardware registers available in both
these chips, note that most of this documentation is automatically
generated from the hardware implementation.
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The two chips are somewhat different, and needs different handling.
Adds handing of the dma, dram initialization, hardware settings, io,
memory arbiter and pinmux
Also moves the dma, dram initialization and io from CRIS v32 common files.
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Adds gpio and nandflash handling for Etrax-FS
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Adds gpio and nandflash handling for Artpec-3.
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- Remove some unneeded configs and add some new ones.
- Merge common config items to common file instead of duplicating them.
- Pull in standard Kconfig.preempt.
- Remove some unneeded Kconfigs for subsystems not (yet) available on CRIS
(md, scsi, ieee1394, i2o, isdn, telephony, media, pcmcia, pci)
- Rename CRISv32 config items which had different types from CRISv10.
(ETRAX_LED2G, ETRAX_LED2R, ETRAX_LED3G, ETRAX_LED3R, ETRAX_I2C_DATA_PORT,
ETRAX_I2C_CLK_PORT)
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git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm
* 'slub-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm:
SLUB: fix checkpatch warnings
Use non atomic unlock
SLUB: Support for performance statistics
SLUB: Alternate fast paths using cmpxchg_local
SLUB: Use unique end pointer for each slab page.
SLUB: Deal with annoying gcc warning on kfree()
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Provide an alternate implementation of the SLUB fast paths for alloc
and free using cmpxchg_local. The cmpxchg_local fast path is selected
for arches that have CONFIG_FAST_CMPXCHG_LOCAL set. An arch should only
set CONFIG_FAST_CMPXCHG_LOCAL if the cmpxchg_local is faster than an
interrupt enable/disable sequence. This is known to be true for both
x86 platforms so set FAST_CMPXCHG_LOCAL for both arches.
Currently another requirement for the fastpath is that the kernel is
compiled without preemption. The restriction will go away with the
introduction of a new per cpu allocator and new per cpu operations.
The advantages of a cmpxchg_local based fast path are:
1. Potentially lower cycle count (30%-60% faster)
2. There is no need to disable and enable interrupts on the fast path.
Currently interrupts have to be disabled and enabled on every
slab operation. This is likely avoiding a significant percentage
of interrupt off / on sequences in the kernel.
3. The disposal of freed slabs can occur with interrupts enabled.
The alternate path is realized using #ifdef's. Several attempts to do the
same with macros and inline functions resulted in a mess (in particular due
to the strange way that local_interrupt_save() handles its argument and due
to the need to define macros/functions that sometimes disable interrupts
and sometimes do something else).
[clameter: Stripped preempt bits and disabled fastpath if preempt is enabled]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Commit ad7f71674ad7c3c4467e48f6ab9e85516dae2720 ("[POWERPC] Use a
sensible default for clock_getres() in the VDSO") corrected the clock
resolution reported by the VDSO clock_getres() but introduced another
problem in that older versions of gcc (gcc-4.0 and earlier) fail to
compile the new code in arch/powerpc/kernel/asm-offsets.c.
This fixes it by introducing a new MONOTONIC_RES_NSEC define in the
generic code which is equivalent to KTIME_MONOTONIC_RES but is just an
integer constant, not a ktime union.
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit 6e16d89bcd668a95eb22add24c02d80890232b66 ("Sanitize the type of
struct user.u_ar0") forgot to change the m68k setting code, causing the
following compiler warning:
arch/m68k/kernel/process.c:338: warning: assignment makes integer from pointer without a cast
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (34 commits)
Input: i8042 - non-x86 build fix
Input: pxa27x_keypad - also enable on PXA3xx
Input: pxa27x_keypad - add debounce_interval to the keypad platform data
Input: pxa27x_keypad - use device resources for I/O memory mapping and IRQ
Input: pxa27x_keypad - enable rotary encoders and direct keys
Input: pxa27x_keypad - introduce pxa27x_keypad_config()
Input: pxa27x_keypad - introduce driver structure and use KEY() to define matrix keys
Input: pxa27x_keypad - remove pin configuration from the driver
Input: pxa27x_keypad - rename the driver (was pxa27x_keyboard)
Input: constify function pointer tables (seq_operations)
Input: i8042 - add Fujitsu-Siemens Amilo Pro 2010 to nomux list
Input: i8042 - enable DMI quirks on x86-64
Input: i8042 - add Dritek quirk for Acer Aspire 9110
Input: add input event to APM event bridge
Input: mousedev - use BIT_MASK instead of BIT
Input: remove duplicate includes
Input: remove cdev from input_dev structure
Input: remove duplicated headers in drivers/char/keyboard.c
Input: i8042 - add Dritek keyboard extension quirk
Input: add Tosa keyboard driver
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC32]: Use regsets in arch_ptrace().
[SPARC64]: Use regsets in arch_ptrace().
[SPARC32]: Use regsets for ELF core dumping.
[SPARC64]: Use regsets for ELF core dumping.
[SPARC64]: Remove unintentional ptrace debugging messages.
[SPARC]: Move over to arch_ptrace().
[SPARC]: Remove PTRACE_SUN* handling.
[SPARC]: Kill DEBUG_PTRACE code.
[SPARC32]: Add user regset support.
[SPARC64]: Add user regsets.
[SPARC64]: Fix booting on non-zero cpu.
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (112 commits)
ACPI: fix build warning
Revert "cpuidle: build fix for non-x86"
ACPI: update intrd DSDT override console messages
ACPI: update DSDT override documentation
ACPI: Add "acpi_no_initrd_override" kernel parameter
ACPI: its a directory not a folder....
ACPI: misc cleanups
ACPI: add missing prink prefix strings
ACPI: cleanup acpi.h
ACPICA: fix CONFIG_ACPI_DEBUG_FUNC_TRACE build
ACPI: video: Ignore ACPI video devices that aren't present in hardware
ACPI: video: reset brightness on resume
ACPI: video: call ACPI notifier chain for ACPI video notifications
ACPI: create notifier chain to get hotkey events to graphics driver
ACPI: video: delete unused display switch on hotkey event code
ACPI: video: create "brightness_switch_enabled" modparam
cpuidle: Add a poll_idle method
ACPI: cpuidle: Support C1 idle time accounting
ACPI: enable MWAIT for C1 idle
ACPI: idle: Fix acpi_safe_halt usages and interrupt enabling/disabling
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* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
leds: Add HP Jornada 6xx driver
leds: Remove the now uneeded ixp4xx driver
leds: Add power LED to the wrap driver
leds: Fix led-gpio active_low default brightness
leds: hw acceleration for Clevo mail LED driver
leds: Add support for hardware accelerated LED flashing
leds: Standardise LED naming scheme
leds: Add clevo notebook LED driver
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* git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Add missing printk levels to e_powersaver
[CPUFREQ] Fix sparse warning in powernow-k8
[CPUFREQ] Support Model D parts and newer in e_powersaver
[CPUFREQ] Powernow-k8: Update to support the latest Turion processors
[CPUFREQ] fix configuration help message
[CPUFREQ] powernow-k8 print pstate instead of fid/did for family 10h
[CPUFREQ] Eliminate cpufreq_userspace scaling_setspeed deadlock
[CPUFREQ] gx-suspmod.c: use boot_cpu_data instead of current_cpu_data
[CPUFREQ] fix incorrect comment on show_available_freqs() in freq_table.c
[CPUFREQ] drivers/cpufreq: Add missing "space"
[CPUFREQ] arch/x86: Add missing "space"
[CPUFREQ] Remove pointless Kconfig dependancy
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (69 commits)
[POWERPC] Add SPE registers to core dumps
[POWERPC] Use regset code for compat PTRACE_*REGS* calls
[POWERPC] Use generic compat_sys_ptrace
[POWERPC] Use generic compat_ptrace_request
[POWERPC] Use generic ptrace peekdata/pokedata
[POWERPC] Use regset code for PTRACE_*REGS* requests
[POWERPC] Switch to generic compat_binfmt_elf code
[POWERPC] Switch to using user_regset-based core dumps
[POWERPC] Add user_regset compat support
[POWERPC] Add user_regset_view definitions
[POWERPC] Use user_regset accessors for GPRs
[POWERPC] ptrace accessors for special regs MSR and TRAP
[POWERPC] Use user_regset accessors for SPE regs
[POWERPC] Use user_regset accessors for altivec regs
[POWERPC] Use user_regset accessors for FP regs
[POWERPC] mpc52xx: fix compile error introduce when rebasing patch
[POWERPC] 4xx: PCIe indirect DCR spinlock fix.
[POWERPC] Add missing native dcr dcr_ind_lock spinlock
[POWERPC] 4xx: Fix offset value on Warp board
[POWERPC] 4xx: Add 440EPx Sequoia ehci dts entry
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Adds i8k driver to the x86_64 Kconfig.
Signed-off-by: Bradley Smith <bradjsmith@btinternet.com>
Cc: Frank Sorenson <frank@tuxrocks.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch is for Mathieu Desnoyers's include/asm-m32r/local.h.
Applying the new include/asm-m32r/local.h, inclusion of linux/sched.h
is needed to fix a build error of arch/m32r/kernel/smpboot.c.
<-- snip -->
...
CC arch/m32r/kernel/smpboot.o
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c: In function 'do_boot_cpu':
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:279: error: implicit declaration of function 'fork_idle'
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:279: warning: assignment makes pointer from integer without a cast
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:283: error: dereferencing pointer to incomplete type
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:289: error: dereferencing pointer to incomplete type
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:290: error: implicit declaration of function 'task_thread_info'
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:290: error: invalid type argument of '->'
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c: In function 'start_secondary':
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:429: error: implicit declaration of function 'cpu_init'
make[2]: *** [arch/m32r/kernel/smpboot.o] Error 1
<-- snip -->
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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struct user.u_ar0 is defined to contain a pointer offset on all
architectures in which it is defined (all architectures which define an
a.out format except SPARC.) However, it has a pointer type in the headers,
which is pointless -- <asm/user.h> is not exported to userspace, and it
just makes the code messy.
Redefine the field as "unsigned long" (which is the same size as a pointer
on all Linux architectures) and change the setting code to user offsetof()
instead of hand-coded arithmetic.
Cc: Linux Arch Mailing List <linux-arch@vger.kernel.org>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Håvard Skinnemoen <hskinnemoen@atmel.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch fixes the configuration dependencies in the vmcoreinfo data.
i386's "node_data" is defined in arch/x86/mm/discontig_32.c,
and x86_64's one is defined in arch/x86/mm/numa_64.c.
They depend on CONFIG_NUMA:
arch/x86/mm/Makefile_32:7
obj-$(CONFIG_NUMA) += discontig_32.o
arch/x86/mm/Makefile_64:7
obj-$(CONFIG_NUMA) += numa_64.o
ia64's "pgdat_list" is defined in arch/ia64/mm/discontig.c,
and it depends on CONFIG_DISCONTIGMEM and CONFIG_SPARSEMEM:
arch/ia64/mm/Makefile:9-10
obj-$(CONFIG_DISCONTIGMEM) += discontig.o
obj-$(CONFIG_SPARSEMEM) += discontig.o
ia64's "node_memblk" is defined in arch/ia64/mm/numa.c,
and it depends on CONFIG_NUMA:
arch/ia64/mm/Makefile:8
obj-$(CONFIG_NUMA) += numa.o
Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Acked-by: Simon Horman <horms@verge.net.au>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patchset is for the vmcoreinfo data.
The vmcoreinfo data has the minimum debugging information only for dump
filtering. makedumpfile (dump filtering command) gets it to distinguish
unnecessary pages, and makedumpfile creates a small dumpfile.
This patch:
VMCOREINFO_SIZE() should be renamed VMCOREINFO_STRUCT_SIZE() since it's always
returning the size of the struct with a given name. This change would allow
VMCOREINFO_TYPEDEF_SIZE() to simply become VMCOREINFO_SIZE() since it need not
be used exclusively for typedefs.
This discussion is the following:
http://www.ussg.iu.edu/hypermail/linux/kernel/0709.3/0582.html
Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use the BOOTMEM_EXCLUSIVE, introduced in the previous patch, to avoid
conflicts while reserving the memory for the kdump capture kernel
(crashkernel=).
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: <linux-arch@vger.kernel.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patchset adds a flags variable to reserve_bootmem() and uses the
BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions
between crashkernel area and already used memory.
This patch:
Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE.
If that flag is set, the function returns with -EBUSY if the memory already
has been reserved in the past. This is to avoid conflicts.
Because that code runs before SMP initialisation, there's no race condition
inside reserve_bootmem_core().
[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix powerpc build]
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: <linux-arch@vger.kernel.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Supporting SunOS ptrace() is pretty pointless and these
kinds of quirks keep us from being able to share more
code with other platforms.
Signed-off-by: David S. Miller <davem@davemloft.net>
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It has long exceeded it's usefulness.
Signed-off-by: David S. Miller <davem@davemloft.net>
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It is missing lazy FPU handling for the current task,
but that can be added later.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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The early per-cpu handling needs a slight tweak to work when booting
on a non-zero cpu.
We got away with this for a long time, but can't any longer as now
even printk() calls functions (cpu_clock() for example) that thus make
early references to per-cpu variables.
Signed-off-by: David S. Miller <davem@davemloft.net>
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As discussed on LKML some notion of 'function' is needed in
LED naming. This patch adds this to the documentation and
standardises existing LED drivers.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
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This makes the SPE register data appear in ELF core dumps, using the
new n_type value NT_PPC_SPE (0x101). This new note type is not used
by any consumers of core files yet, but support can be added. I don't
even have any hardware with SPE capabilities, so I've never seen such
a note. But this demonstrates how simple it is to export register
information in core dumps when the user_regset style is used for the
low-level code.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This cleans up the 32-bit ptrace syscall support to use user_regset calls
to get at the register data for PTRACE_*REGS* calls.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This replaces powerpc's compat_sys_ptrace with a compat_arch_ptrace and
enables the new generic definition of compat_sys_ptrace instead.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This removes some duplicated code by calling the new generic
compat_ptrace_request from powerpc's compat_sys_ptrace.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Now that ptrace_request handles these, we can drop some more boilerplate.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This replaces all the code for powerpc PTRACE_*REGS* requests with
simple calls to copy_regset_from_user and copy_regset_to_user. All
the ptrace formats are either the whole corresponding user_regset
format (core dump format) or a leading subset of it, so we can get
rid of all the remaining embedded knowledge of both those layouts
and of the internal data structures they correspond to. Only the
user_regset accessors need to implement that.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This switches the CONFIG_PPC64 support for 32-bit ELF to use the
generic fs/compat_binfmt_elf.c implementation instead of our own
binfmt_elf32.c. Since so much is the same between 32/64, there is
only one macro we have to define to make the generic support work out
of the box.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This extends task_user_regset_view CONFIG_PPC64 with support for the
32-bit view of register state, compatible with what a CONFIG_PPC32
kernel provides. This will enable generic machine-independent code to
access user-mode threads' registers for debugging and dumping.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This provides the task_user_regset_view entry point and support for
all the native-mode (64 on CONFIG_PPC64, 32 on CONFIG_PPC32) thread
register state. This will enable generic machine-independent code to
access user-mode threads' registers for debugging and dumping.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This implements user_regset-style accessors for the powerpc general
registers. In the future these functions will be the only place that
needs to understand the user_regset layout (core dump format) and how
it maps to the internal representation of user thread state.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This isolates the ptrace code for the special-case registers msr and trap
from the ptrace-layout dispatch code. This should inline away completely.
It cleanly separates the low-level machine magic that has to be done for
deep reasons, from the superficial details of the ptrace interface.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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