Commit Graph

35438 Commits

Author SHA1 Message Date
Rusty Russell
61f4bc83fe lguest: optimize by coding restore_flags and irq_enable in assembler.
The downside of the last patch which made restore_flags and irq_enable
check interrupts is that they are now too big to be patched directly
into the callsites, so the C versions are always used.

But the C versions go via PV_CALLEE_SAVE_REGS_THUNK which saves all
the registers.  In fact, we don't need any registers in the fast path,
so we can do better than this if we actually code them in assembler.

The results are in the noise, but since it's about the same amount of
code, it's worth applying.

1GB Guest->Host: input(suppressed),output(suppressed)
Before:
	Seconds: 0:16.53
	Packets: 377268,753673
	Interrupts: 22461,24297
	Notifications: 1(5245),21303(732370)
	Net IRQs triggered: 377023(245),42578(711095)

After:
	Seconds: 0:16.48
	Packets: 377289,753673
	Interrupts: 22281,24465
	Notifications: 1(5245),21296(732377)
	Net IRQs triggered: 377060(229),42564(711109)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-06-12 22:27:03 +09:30
Rusty Russell
a32a8813d0 lguest: improve interrupt handling, speed up stream networking
lguest never checked for pending interrupts when enabling interrupts, and
things still worked.  However, it makes a significant difference to TCP
performance, so it's time we fixed it by introducing a pending_irq flag
and checking it on irq_restore and irq_enable.

These two routines are now too big to patch into the 8/10 bytes
patch space, so we drop that code.

Note: The high latency on interrupt delivery had a very curious
effect: once everything else was optimized, networking without GSO was
faster than networking with GSO, since more interrupts were sent and
hence a greater chance of one getting through to the Guest!

Note2: (Almost) Closing the same loophole for iret doesn't have any
measurable effect, so I'm leaving that patch for the moment.

Before:
	1GB tcpblast Guest->Host:		30.7 seconds
	1GB tcpblast Guest->Host (no GSO):	76.0 seconds

After:
	1GB tcpblast Guest->Host:		6.8 seconds
	1GB tcpblast Guest->Host (no GSO):	27.8 seconds

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-06-12 22:27:03 +09:30
Rusty Russell
1028375e93 lguest: clean up lguest_init_IRQ
Copy from arch/x86/kernel/irqinit_32.c: we don't use the vectors beyond
LGUEST_IRQS (if any), but we might as well set them all.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-06-12 22:27:00 +09:30
Linus Torvalds
4b4f1d0178 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (87 commits)
  nilfs2: get rid of bd_mount_sem use from nilfs
  nilfs2: correct exclusion control in nilfs_remount function
  nilfs2: simplify remaining sget() use
  nilfs2: get rid of sget use for checking if current mount is present
  nilfs2: get rid of sget use for acquiring nilfs object
  nilfs2: remove meaningless EBUSY case from nilfs_get_sb function
  remove the call to ->write_super in __sync_filesystem
  nilfs2: call nilfs2_write_super from nilfs2_sync_fs
  jffs2: call jffs2_write_super from jffs2_sync_fs
  ufs: add ->sync_fs
  sysv: add ->sync_fs
  hfsplus: add ->sync_fs
  hfs: add ->sync_fs
  fat: add ->sync_fs
  ext2: add ->sync_fs
  exofs: add ->sync_fs
  bfs: add ->sync_fs
  affs: add ->sync_fs
  sanitize ->fsync() for affs
  repair bfs_write_inode(), switch bfs to simple_fsync()
  ...
2009-06-11 20:05:37 -07:00
Linus Torvalds
875287caa0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: remove unecessary include of thread_info.h in entry.S
  m68knommu: enumerate INIT_THREAD fields properly
  headers_check fix: m68k, swab.h
  arch/m68knommu: Convert #ifdef DEBUG printk(KERN_DEBUG to pr_debug(
  m68knommu: remove obsolete reset code
  m68knommu: move CPU reset code for the 5272 ColdFire into its platform code
  m68knommu: move CPU reset code for the 528x ColdFire into its platform code
  m68knommu: move CPU reset code for the 527x ColdFire into its platform code
  m68knommu: move CPU reset code for the 523x ColdFire into its platform code
  m68knommu: move CPU reset code for the 520x ColdFire into its platform code
  m68knommu: add CPU reset code for the 532x ColdFire
  m68knommu: add CPU reset code for the 5249 ColdFire
  m68knommu: add CPU reset code for the 5206e ColdFire
  m68knommu: add CPU reset code for the 5206 ColdFire
  m68knommu: add CPU reset code for the 5407 ColdFire
  m68knommu: add CPU reset code for the 5307 ColdFire
  m68knommu: merge system reset for code ColdFire 523x family
  m68knommu: fix system reset for ColdFire 527x family
2009-06-11 20:05:08 -07:00
Yinghai Lu
12274e96b4 x86: use zalloc_cpumask_var in arch_early_irq_init
So we make sure MAXSMP gets a cleared cpumask

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 20:04:36 -07:00
Stephen Rothwell
e14112d1bd perfcounters: remove powerpc definitions of perf_counter_do_pending
Commit 925d519ab8 ("perf_counter:
unify and fix delayed counter wakeup") added global definitions.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 20:03:13 -07:00
Al Viro
6fac98dd21 Push BKL into do_mount()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-06-11 21:36:08 -04:00
Linus Torvalds
8a1ca8cedd Merge branch 'perfcounters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (574 commits)
  perf_counter: Turn off by default
  perf_counter: Add counter->id to the throttle event
  perf_counter: Better align code
  perf_counter: Rename L2 to LL cache
  perf_counter: Standardize event names
  perf_counter: Rename enums
  perf_counter tools: Clean up u64 usage
  perf_counter: Rename perf_counter_limit sysctl
  perf_counter: More paranoia settings
  perf_counter: powerpc: Implement generalized cache events for POWER processors
  perf_counters: powerpc: Add support for POWER7 processors
  perf_counter: Accurate period data
  perf_counter: Introduce struct for sample data
  perf_counter tools: Normalize data using per sample period data
  perf_counter: Annotate exit ctx recursion
  perf_counter tools: Propagate signals properly
  perf_counter tools: Small frequency related fixes
  perf_counter: More aggressive frequency adjustment
  perf_counter/x86: Fix the model number of Intel Core2 processors
  perf_counter, x86: Correct some event and umask values for Intel processors
  ...
2009-06-11 14:01:07 -07:00
Linus Torvalds
b640f042fa Merge branch 'topic/slab/earlyboot' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6
* 'topic/slab/earlyboot' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  vgacon: use slab allocator instead of the bootmem allocator
  irq: use kcalloc() instead of the bootmem allocator
  sched: use slab in cpupri_init()
  sched: use alloc_cpumask_var() instead of alloc_bootmem_cpumask_var()
  memcg: don't use bootmem allocator in setup code
  irq/cpumask: make memoryless node zero happy
  x86: remove some alloc_bootmem_cpumask_var calling
  vt: use kzalloc() instead of the bootmem allocator
  sched: use kzalloc() instead of the bootmem allocator
  init: introduce mm_init()
  vmalloc: use kzalloc() instead of alloc_bootmem()
  slab: setup allocators earlier in the boot sequence
  bootmem: fix slab fallback on numa
  bootmem: use slab if bootmem is no longer available
2009-06-11 12:25:06 -07:00
Linus Torvalds
7702667bb4 Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: memtest: use pointers of equal type for comparison
2009-06-11 11:26:56 -07:00
Linus Torvalds
c9059598ea Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block: (153 commits)
  block: add request clone interface (v2)
  floppy: fix hibernation
  ramdisk: remove long-deprecated "ramdisk=" boot-time parameter
  fs/bio.c: add missing __user annotation
  block: prevent possible io_context->refcount overflow
  Add serial number support for virtio_blk, V4a
  block: Add missing bounce_pfn stacking and fix comments
  Revert "block: Fix bounce limit setting in DM"
  cciss: decode unit attention in SCSI error handling code
  cciss: Remove no longer needed sendcmd reject processing code
  cciss: change SCSI error handling routines to work with interrupts enabled.
  cciss: separate error processing and command retrying code in sendcmd_withirq_core()
  cciss: factor out fix target status processing code from sendcmd functions
  cciss: simplify interface of sendcmd() and sendcmd_withirq()
  cciss: factor out core of sendcmd_withirq() for use by SCSI error handling code
  cciss: Use schedule_timeout_uninterruptible in SCSI error handling code
  block: needs to set the residual length of a bidi request
  Revert "block: implement blkdev_readpages"
  block: Fix bounce limit setting in DM
  Removed reference to non-existing file Documentation/PCI/PCI-DMA-mapping.txt
  ...

Manually fix conflicts with tracing updates in:
	block/blk-sysfs.c
	drivers/ide/ide-atapi.c
	drivers/ide/ide-cd.c
	drivers/ide/ide-floppy.c
	drivers/ide/ide-tape.c
	include/trace/events/block.h
	kernel/trace/blktrace.c
2009-06-11 11:10:35 -07:00
Linus Torvalds
c29f5ec022 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (26 commits)
  amd64_edac: add MAINTAINERS entry
  EDAC: do not enable modules by default
  amd64_edac: do not enable module by default
  amd64_edac: add module registration routines
  amd64_edac: add ECC reporting initializers
  amd64_edac: add EDAC core-related initializers
  amd64_edac: add error decoding logic
  amd64_edac: add ECC chipkill syndrome mapping table
  amd64_edac: add per-family descriptors
  amd64_edac: add F10h-and-later methods-p3
  amd64_edac: add F10h-and-later methods-p2
  amd64_edac: add F10h-and-later methods-p1
  amd64_edac: add k8-specific methods
  amd64_edac: assign DRAM chip select base and mask in a family-specific way
  amd64_edac: add helper to dump relevant registers
  amd64_edac: add DRAM address type conversion facilities
  amd64_edac: add functionality to compute the DRAM hole
  amd64_edac: add sys addr to memory controller mapping helpers
  amd64_edac: add memory scrubber interface
  amd64_edac: add MCA error types
  ...
2009-06-11 10:33:36 -07:00
Linus Torvalds
d3d07d941f Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (266 commits)
  sh: Tie sparseirq in to Kconfig.
  sh: Wire up sys_rt_tgsigqueueinfo.
  sh: Fix sys_pwritev() syscall table entry for sh32.
  sh: Fix sh4a llsc-based cmpxchg()
  sh: sh7724: Add JPU support
  sh: sh7724: INTC setting update
  sh: sh7722 clock framework rewrite
  sh: sh7366 clock framework rewrite
  sh: sh7343 clock framework rewrite
  sh: sh7724 clock framework rewrite V3
  sh: sh7723 clock framework rewrite V2
  sh: add enable()/disable()/set_rate() to div6 code
  sh: add AP325RXA mode pin configuration
  sh: add Migo-R mode pin configuration
  sh: sh7722 mode pin definitions
  sh: sh7724 mode pin comments
  sh: sh7723 mode pin V2
  sh: rework mode pin code
  sh: clock div6 helper code
  sh: clock div4 frequency table offset fix
  ...
2009-06-11 10:08:33 -07:00
Linus Torvalds
6cd8e300b4 Merge branch 'kvm-updates/2.6.31' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.31' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (138 commits)
  KVM: Prevent overflow in largepages calculation
  KVM: Disable large pages on misaligned memory slots
  KVM: Add VT-x machine check support
  KVM: VMX: Rename rmode.active to rmode.vm86_active
  KVM: Move "exit due to NMI" handling into vmx_complete_interrupts()
  KVM: Disable CR8 intercept if tpr patching is active
  KVM: Do not migrate pending software interrupts.
  KVM: inject NMI after IRET from a previous NMI, not before.
  KVM: Always request IRQ/NMI window if an interrupt is pending
  KVM: Do not re-execute INTn instruction.
  KVM: skip_emulated_instruction() decode instruction if size is not known
  KVM: Remove irq_pending bitmap
  KVM: Do not allow interrupt injection from userspace if there is a pending event.
  KVM: Unprotect a page if #PF happens during NMI injection.
  KVM: s390: Verify memory in kvm run
  KVM: s390: Sanity check on validity intercept
  KVM: s390: Unlink vcpu on destroy - v2
  KVM: s390: optimize float int lock: spin_lock_bh --> spin_lock
  KVM: s390: use hrtimer for clock wakeup from idle - v2
  KVM: s390: Fix memory slot versus run - v3
  ...
2009-06-11 10:03:30 -07:00
Yinghai Lu
dad213aeb5 irq/cpumask: make memoryless node zero happy
Don't hardcode to node zero for early boot IRQ setup memory allocations.

[ penberg@cs.helsinki.fi: minor cleanups ]
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
2009-06-11 19:27:08 +03:00
Yinghai Lu
38c7fed2f5 x86: remove some alloc_bootmem_cpumask_var calling
Now that we set up the slab allocator earlier, we can get rid of some
alloc_bootmem_cpumask_var() calls in boot code.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
2009-06-11 19:27:07 +03:00
Linus Torvalds
59c288ffb6 Merge branches 'frv' and 'mn10300'
* frv:
  FRV: Implement new-style ptrace
  FRV: Don't turn on TIF_SYSCALL_TRACE unconditionally in syscall prologue
  FRV: Implement TIF_NOTIFY_RESUME
  FRV: Remove in-kernel strace code
  FRV: BUG to BUG_ON changes
  FRV: bitops: Change the bitmap index from int to unsigned long

* mn10300:
  MN10300: Add utrace/tracehooks support
  MN10300: Don't set the dirty bit in the DTLB entries in the TLB-miss handler
2009-06-11 09:02:31 -07:00
David Howells
5d289964e1 MN10300: Add utrace/tracehooks support
Add utrace/tracehooks support to MN10300.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 09:02:20 -07:00
David Howells
fd4f683d04 MN10300: Don't set the dirty bit in the DTLB entries in the TLB-miss handler
Remove the special handling for the Data TLB entry dirty bit in the TLB-miss
handler.  As the code stands, all that it does is to cause us to take a second
data address exception to set the dirty bit.  Instead, we can just let
pte_mkdirty() set the bit.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 09:02:20 -07:00
David Howells
4a3b989322 FRV: Implement new-style ptrace
Implement the new-style ptrace for FRV, including adding appropriate
tracehooks.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 09:01:26 -07:00
David Howells
24ceb7e8a6 FRV: Don't turn on TIF_SYSCALL_TRACE unconditionally in syscall prologue
Don't turn on TIF_SYSCALL_TRACE unconditionally in syscall prologue in FRV's
entry.S.  This was originally for debugging stuff and should have been removed
a long time ago.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 09:01:26 -07:00
David Howells
b7bab880c7 FRV: Implement TIF_NOTIFY_RESUME
Implement the TIF_NOTIFY_RESUME thread flag, making it call do_notify_resume()
which then clears it.  This will be made use of later by tracehooks in the
new-style ptrace implementation

Also discard TIF_IRET as that's not used by FRV.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 09:01:26 -07:00
David Howells
aa1913c021 FRV: Remove in-kernel strace code
Remove in-kernel strace code from the FRV arch as it's not really needed any
more.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 09:01:26 -07:00
Stoyan Gaydarov
db5c444eeb FRV: BUG to BUG_ON changes
Change some BUG()'s to BUG_ON()'s.

Signed-off-by: Stoyan Gaydarov <stoyboyker@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 09:01:26 -07:00
Justin Chen
d2f11bf7fc FRV: bitops: Change the bitmap index from int to unsigned long
Change the index to unsigned long in all bitops for [frv]

Signed-off-by: Justin Chen <justin.chen@hp.com>
Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 09:01:26 -07:00
Linus Torvalds
49c355617f Merge branch 'serial-from-alan'
* serial-from-alan: (79 commits)
  moxa: prevent opening unavailable ports
  imx: serial: use tty_encode_baud_rate to set true rate
  imx: serial: add IrDA support to serial driver
  imx: serial: use rational library function
  lib: isolate rational fractions helper function
  imx: serial: handle initialisation failure correctly
  imx: serial: be sure to stop xmit upon shutdown
  imx: serial: notify higher layers in case xmit IRQ was not called
  imx: serial: fix one bit field type
  imx: serial: fix whitespaces (no changes in functionality)
  tty: use prepare/finish_wait
  tty: remove sleep_on
  sierra: driver interface blacklisting
  sierra: driver urb handling improvements
  tty: resolve some sierra breakage
  timbuart: Fix the termios logic
  serial: Added Timberdale UART driver
  tty: Add URL for ttydev queue
  devpts: unregister the file system on error
  tty: Untangle termios and mm mutex dependencies
  ...
2009-06-11 08:57:47 -07:00
Ingo Molnar
940010c5a3 Merge branch 'linus' into perfcounters/core
Conflicts:
	arch/x86/kernel/irqinit.c
	arch/x86/kernel/irqinit_64.c
	arch/x86/kernel/traps.c
	arch/x86/mm/fault.c
	include/linux/sched.h
	kernel/exit.c
2009-06-11 17:55:42 +02:00
Peter Zijlstra
8be6e8f3c3 perf_counter: Rename L2 to LL cache
The top (fastest) and last level (biggest) caches are the most
interesting ones, performance wise.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
[ Fixed the Nehalem LL table to LLC Reference/Miss events ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 17:54:17 +02:00
Peter Zijlstra
f4dbfa8f31 perf_counter: Standardize event names
Pure renames only, to PERF_COUNT_HW_* and PERF_COUNT_SW_*.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 17:54:15 +02:00
Fabian Godehardt
b6e4913834 imx: serial: add IrDA support to serial driver
Using the iMX serial driver with an IrDA device
needs extra peripheral settings and specific
timing depending on the transmitter circuitry used.

Signed-off-by: Fabian Godehardt <fg@emlix.com>
Signed-off-by: Oskar Schirmer <os@emlix.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 08:51:08 -07:00
Arnd Bergmann
5b0ed5263c x86: fix ktermios-termio conversion
The legacy TCSETA{,W,F} ioctls failed to set the termio->c_line field
on x86. This adds a missing get_user.

The same ioctls also fail to report faulting user pointers, which
we keep ignoring.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 08:50:59 -07:00
Paul Mackerras
106b506c3a perf_counter: powerpc: Implement generalized cache events for POWER processors
This adds tables of event codes for the generalized cache events for
all the currently supported powerpc processors: POWER{4,5,5+,6,7} and
PPC970*, plus powerpc-specific code to use these tables when a
generalized cache event is requested.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <18992.36430.933526.742969@drongo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 16:48:37 +02:00
Paul Mackerras
4da52960fd perf_counters: powerpc: Add support for POWER7 processors
This adds the back-end for the PMU on POWER7 processors.  POWER7
has 4 fully-programmable counters and two fixed-function counters
(which do respect the freeze conditions, can generate interrupts,
and are writable, unlike PMC5/6 on POWER5+/6).

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <18992.36329.189378.17992@drongo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 16:48:37 +02:00
Thomas Gleixner
9866b7e86a x86: memtest: use pointers of equal type for comparison
Commit c9690998ef (x86: memtest: remove
64-bit division) introduced following compile warning:

arch/x86/mm/memtest.c: In function 'memtest':
arch/x86/mm/memtest.c:56: warning: comparison of distinct pointer types lacks a cast
arch/x86/mm/memtest.c:58: warning: comparison of distinct pointer types lacks a cast

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-06-11 16:26:35 +02:00
Paul Mundt
54ff328b46 sh: Tie sparseirq in to Kconfig.
Now that the dependent patches are merged, we are ready to enable
sparseirq support. This simply adds the Kconfig option, and then converts
from the _cpu to the _node allocation routines to follow the upstream
sparseirq API changes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 10:33:09 +03:00
Paul Mundt
6a1555fdde sh: Wire up sys_rt_tgsigqueueinfo.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:38:05 +03:00
Paul Mundt
75c936aec0 sh: Fix sys_pwritev() syscall table entry for sh32.
There was a typo here that had this as sys_writev() instead of
sys_pwritev(), fix this up. sh64 got this right, as did the preadv()
case.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:33:53 +03:00
Aoi Shinkai
4c7c997886 sh: Fix sh4a llsc-based cmpxchg()
This fixes up a typo in the ll/sc based cmpxchg code which apparently
wasn't getting a lot of testing due to the swapped old/new pair. With
that fixed up, the ll/sc code also starts using it and provides its own
atomic_add_unless().

Signed-off-by: Aoi Shinkai <shinkoi2005@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:31:55 +03:00
Kuninori Morimoto
f168dd00a9 sh: sh7724: Add JPU support
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Acked-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:17:17 +03:00
Kuninori Morimoto
c5eeff1f8e sh: sh7724: INTC setting update
This patch follows Rev 0.50 manual

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:17:12 +03:00
Magnus Damm
46e9371c0e sh: sh7722 clock framework rewrite
This patch rewrites the sh7722 clock framework code.
The new code makes use of the recently merged div4,
div6 and mstp32 helper code. Both extal and dll are
supported as input clocks to the pll.

While at it, now when all SuperH Mobile processors
are converted, fix CONFIG_SH_CLK_CPG_LEGACY to depend
on CONFIG_ARCH_SHMOBILE.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:15:15 +03:00
Magnus Damm
4ed3739484 sh: sh7366 clock framework rewrite
This patch rewrites the sh7366 clock framework code.
The new code makes use of the recently merged div4,
div6 and mstp32 helper code. Both extal and dll are
supported as input clocks to the pll.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:15:07 +03:00
Magnus Damm
bc49b6eaac sh: sh7343 clock framework rewrite
This patch rewrites the sh7343 clock framework code.
The new code makes use of the recently merged div4,
div6 and mstp32 helper code. Both extal and dll are
supported as input clocks to the pll.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:14:34 +03:00
Magnus Damm
b621370a35 sh: sh7724 clock framework rewrite V3
This patch contains V3 of the sh7724 clock framework
rewrite. The new code makes use of the recently merged
div4, div6 and mstp32 helper code. Both extal and fll are
supported as input clocks to the pll. The div6 clocks are
fed through a divide-by-3 block.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:14:28 +03:00
Magnus Damm
c521dc0203 sh: sh7723 clock framework rewrite V2
This patch contains V2 of the sh7723 clock framework
rewrite. The new code makes use of the recently merged
div4, div6 and mstp32 helper code. Both extal and dll
are supported as input clocks to the pll.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:13:36 +03:00
Magnus Damm
098dee99d1 sh: add enable()/disable()/set_rate() to div6 code
This patch updates the div6 clock helper code to add support
for enable(), disable() and set_rate() callbacks.

Needed by the camera clock enabling board code on Migo-R.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:12:58 +03:00
Magnus Damm
c01641b42a sh: add AP325RXA mode pin configuration
This patch adds mode pin configuration to ap325rxa.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:09:33 +03:00
Magnus Damm
0ec80fddf1 sh: add Migo-R mode pin configuration
This patch adds mode pin configuration and
a machvec structure to Migo-R.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:09:27 +03:00
Magnus Damm
ed740cb9b7 sh: sh7722 mode pin definitions
This patch adds sh7722 mode pin and pin function
controller comments.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:09:19 +03:00