Commit Graph

1256 Commits

Author SHA1 Message Date
Paul Mundt
73a38b839b sh: Only use bl bit toggling for sleeping idle.
We don't actually require this in the cpu_relax() polling case, so just
cuddle these around the sleeping version.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-21 11:57:33 +09:00
Paul Mundt
3147093e1d sh: Restore bl bit toggling in idle loop.
This fixes up some crashes with IRQs racing the need_resched() test under
QEMU.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-21 11:57:29 +09:00
Nobuhiro Iwamatsu
4385af80bd sh: dmaengine support for SH7785
Add dmaengine platform device to SH7785.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-17 14:19:33 +09:00
Guennadi Liakhovetski
39b27f4cc3 sh: dmaengine support for sh7724.
Add a dmaengine platform device to sh7724, fix DMA channel interrupt numbers.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-17 14:18:27 +09:00
Linus Torvalds
9b2831704e 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: (33 commits)
  sh: Fix test of unsigned in se7722_irq_demux()
  sh: mach-ecovec24: Add FSI sound support
  sh: mach-ecovec24: Add mt9t112 camera support
  sh: mach-ecovec24: Add tw9910 support
  sh: MSIOF/mmc_spi platform data for the Ecovec24 board
  sh: ms7724se: Add ak4642 support
  sh: Fix up FPU build for SH5
  sh: Remove old early serial console code V2
  sh: sh5 scif pdata (sh5-101/sh5-103)
  sh: sh4a scif pdata (sh7757/sh7763/sh7770/sh7780/sh7785/sh7786/x3)
  sh: sh4a scif pdata (sh7343/sh7366/sh7722/sh7723/sh7724)
  sh: sh4 scif pdata (sh7750/sh7760/sh4-202)
  sh: sh3 scif pdata (sh7705/sh770x/sh7710/sh7720)
  sh: sh2a scif pdata (sh7201/sh7203/sh7206/mxg)
  sh: sh2 scif pdata (sh7616)
  sh-sci: Extend sh-sci driver with early console V2
  sh: Stub in P3 ioremap support for nommu parts.
  sh: wire up vmallocinfo support in ioremap() implementations.
  sh: Make the unaligned trap handler always obey notification levels.
  sh: Couple kernel and user write page perm bits for CONFIG_X2TLB
  ...
2009-12-16 10:29:52 -08:00
Paul Mundt
e0aa51f54f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-12-15 12:10:10 +09:00
Matt Fleming
61cc7b0a17 sh: Fix up FPU build for SH5
After the recent FPU optimisation commit the signature of save_fpu()
changed. "regs" wasn't used in the implementation of save_fpu() anyway.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-15 12:07:36 +09:00
Magnus Damm
e76fe57447 sh: Remove old early serial console code V2
Now when the sh-sci driver can do early serial output,
get rid of the old duplicated code. This patch is V2 and
removes support for "earlyprintk=serial" together with
the following kconfig options:
CONFIG_EARLY_SCIF_CONSOLE
CONFIG_EARLY_SCIF_CONSOLE_PORT
CONFIG_EARLY_PRINTK

With this patch applied "earlyprintk=" support is always
built-in the SuperH kernel. For this to work the serial
driver must have early platform support and in the case
of sh-sci the serial console needs to be enabled:
CONFIG_SERIAL_SH_SCI_CONSOLE=y

So after enabling the SuperH SCI console kconfig option
you also need to point out port using the kernel command
line: "earlyprintk=sh-sci.N[,baudrate][,keep]"

Remember that clocks may be disabled by the boot loader
so you may have to do some board specific static clock
setup before earlyprintk will work on your platform.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-15 12:07:35 +09:00
Magnus Damm
d8d3fbb024 sh: sh5 scif pdata (sh5-101/sh5-103)
This patch breaks out the sh5 scif serial port platform
data from a shared platform device to one platform
device per port. Also, move the serial port to the list
of early platform devices.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-15 12:06:37 +09:00
Magnus Damm
a9571d7b04 sh: sh4a scif pdata (sh7757/sh7763/sh7770/sh7780/sh7785/sh7786/x3)
This patch breaks out the sh4a scif serial port platform
data from a shared platform device to one platform
device per port. Also, add serial ports to the list of
early platform devices.

All sh4a except SuperH Mobile processors are modified by
this patch.

While at it, sh7757 gets early platform device support.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-15 12:06:36 +09:00
Magnus Damm
bcac24d053 sh: sh4a scif pdata (sh7343/sh7366/sh7722/sh7723/sh7724)
This patch breaks out the sh4a scif serial port platform
data from a shared platform device to one platform
device per port. Also, add serial ports to the list of
early platform devices.

Only sh4a SuperH Mobile processors are modified by this
patch.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-15 12:06:35 +09:00
Magnus Damm
cd5f107628 sh: sh4 scif pdata (sh7750/sh7760/sh4-202)
This patch breaks out the sh4 scif serial port platform
data from a shared platform device to one platform
device per port. Also, add serial ports to the list of
early platform devices.

While at it, get rid of the R2D ifdef in the processor
code and adjust the defconfigs to use ttySC1.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-15 12:06:33 +09:00
Magnus Damm
44658dfb66 sh: sh3 scif pdata (sh7705/sh770x/sh7710/sh7720)
This patch breaks out the sh3 scif serial port platform
data from a shared platform device to one platform
device per port. Also, add serial ports to the list of
early platform devices.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-15 12:06:32 +09:00
Magnus Damm
be091d20ef sh: sh2a scif pdata (sh7201/sh7203/sh7206/mxg)
This patch breaks out the sh2a scif serial port platform
data from a shared platform device to one platform
device per port. Also, add serial ports to the list of
early platform devices.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-15 12:06:31 +09:00
Magnus Damm
632fd800f5 sh: sh2 scif pdata (sh7616)
This patch breaks out the sh2 scif serial port platform
data from a shared platform device to one platform
device per port. Also, add serial ports to the list of
early platform devices.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-15 12:06:30 +09:00
Magnus Damm
7b6fd3bf82 sh-sci: Extend sh-sci driver with early console V2
This is V2 of early serial console support for the sh-sci
driver. The early serial console is using early platform
devices and "earlyprintk". To use this feature the early
platform devices must be broken out to one device per port
and the desired port should be selected on the kernel command
line like: "earlyprintk=sh-sci.N[,baudrate][,keep]"

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-15 12:06:29 +09:00
Thomas Gleixner
239007b844 genirq: Convert irq_desc.lock to raw_spinlock
Convert locks which cannot be sleeping locks in preempt-rt to
raw_spinlocks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
2009-12-14 23:55:33 +01:00
Paul Mundt
1232d88a47 sh: Make the unaligned trap handler always obey notification levels.
Presently there are a couple of paths in to the alignment handler, where
only the address error path presently quiets the notificiation messages
based on the configuration settings. We carry over the notification level
tests to the default alignment handler itself incase so that they behave
uniformly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-14 11:46:09 +09:00
Al Viro
f8b7256096 Unify sys_mmap*
New helper - sys_mmap_pgoff(); switch syscalls to using it.

Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-11 06:44:29 -05:00
Paul Mundt
c89fbd3987 sh: Wire up recvmmsg syscall.
The stub already existed in the _64 syscall table, but was lacking a
__NR_recvmmsg definition, while it was absent entirely for _32 variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-11 15:29:31 +09:00
Paul Mundt
d580cd96c8 sh: ftrace: Fix up syscall tracing build.
Syscall tracing metadata was shuffled around, update accordingly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-11 15:25:41 +09:00
Paul Mundt
b5c00a3a41 Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh/for-2.6.33 2009-12-10 15:40:31 +09:00
Linus Torvalds
3a43aaa317 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: (137 commits)
  sh: include empty zero page in romImage
  sh: Make associative cache writes fatal on all SH-4A parts.
  sh: Drop associative writes for SH-4 cache flushes.
  sh: Partial revert of copy/clear_user_highpage() optimizations.
  sh: Add default uImage rule for se7724, ap325rxa, and migor.
  sh: allow runtime pm without suspend/resume callbacks
  sh: mach-ecovec24: Remove un-defined settings for VPU
  sh: mach-ecovec24: LCDC drive ability become high
  sh: fix sh7724 VEU3F resource size
  serial: sh-sci: Fix too early port disabling.
  sh: pfc: pr_info() -> pr_debug() cleanups.
  sh: pfc: Convert from ctrl_xxx() to __raw_xxx() I/O routines.
  sh: Improve kfr2r09 serial port setup code
  sh: Break out SuperH PFC code
  sh: Move KEYSC header file
  sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_file
  sh: Add CPG save/restore code for sh7724 R-standby
  sh: Add SDHI power control support to Ecovec
  mfd: Add power control platform data to SDHI driver
  sh: mach-ecovec24: modify address map
  ...
2009-12-09 19:03:16 -08:00
Nicolas Palix
f701b39998 sh: Replace an explicit computation by the use of the container_of macro
The macro container_of from kernel.h performs the same
pointer arithmetic operation.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
expression mptr;
expression member;
@@

- (void *)((char *)mptr - offsetof(T, member))
+ container_of(mptr, T, member)
// </smpl>

Signed-off-by: Nicolas Palix <npalix@diku.dk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-09 12:36:51 +09:00
Linus Torvalds
d7fc02c7ba Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits)
  mac80211: fix reorder buffer release
  iwmc3200wifi: Enable wimax core through module parameter
  iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter
  iwmc3200wifi: Coex table command does not expect a response
  iwmc3200wifi: Update wiwi priority table
  iwlwifi: driver version track kernel version
  iwlwifi: indicate uCode type when fail dump error/event log
  iwl3945: remove duplicated event logging code
  b43: fix two warnings
  ipw2100: fix rebooting hang with driver loaded
  cfg80211: indent regulatory messages with spaces
  iwmc3200wifi: fix NULL pointer dereference in pmkid update
  mac80211: Fix TX status reporting for injected data frames
  ath9k: enable 2GHz band only if the device supports it
  airo: Fix integer overflow warning
  rt2x00: Fix padding bug on L2PAD devices.
  WE: Fix set events not propagated
  b43legacy: avoid PPC fault during resume
  b43: avoid PPC fault during resume
  tcp: fix a timewait refcnt race
  ...

Fix up conflicts due to sysctl cleanups (dead sysctl_check code and
CTL_UNNUMBERED removed) in
	kernel/sysctl_check.c
	net/ipv4/sysctl_net_ipv4.c
	net/ipv6/addrconf.c
	net/sctp/sysctl.c
2009-12-08 07:55:01 -08:00
Linus Torvalds
1557d33007 Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6: (43 commits)
  security/tomoyo: Remove now unnecessary handling of security_sysctl.
  security/tomoyo: Add a special case to handle accesses through the internal proc mount.
  sysctl: Drop & in front of every proc_handler.
  sysctl: Remove CTL_NONE and CTL_UNNUMBERED
  sysctl: kill dead ctl_handler definitions.
  sysctl: Remove the last of the generic binary sysctl support
  sysctl net: Remove unused binary sysctl code
  sysctl security/tomoyo: Don't look at ctl_name
  sysctl arm: Remove binary sysctl support
  sysctl x86: Remove dead binary sysctl support
  sysctl sh: Remove dead binary sysctl support
  sysctl powerpc: Remove dead binary sysctl support
  sysctl ia64: Remove dead binary sysctl support
  sysctl s390: Remove dead sysctl binary support
  sysctl frv: Remove dead binary sysctl support
  sysctl mips/lasat: Remove dead binary sysctl support
  sysctl drivers: Remove dead binary sysctl support
  sysctl crypto: Remove dead binary sysctl support
  sysctl security/keys: Remove dead binary sysctl support
  sysctl kernel: Remove binary sysctl logic
  ...
2009-12-08 07:38:50 -08:00
Paul Mundt
6e8a0d11a0 sh: Make associative cache writes fatal on all SH-4A parts.
Now that associative cache writes are no longer needed by the SH-4/SH-4A
cache flush code, associative write support can be explicitly disabled
for all SH-4A parts. This makes any associative write throw an exception,
as this behaviour can not be assumed to exist on future parts.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 16:22:11 +09:00
Magnus Damm
a65d0d79c4 sh: allow runtime pm without suspend/resume callbacks
This patch updates the Runtime PM code for SuperH Mobile
to allow drivers to have NULL as pm or callback value.
With this in place there is no need for no-op functions.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:42:37 +09:00
Magnus Damm
7e213481d6 sh: fix sh7724 VEU3F resource size
Fix one-off VEU3F size error for sh7724.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:42:29 +09:00
Magnus Damm
fae4339919 sh: Break out SuperH PFC code
This file breaks out the SuperH PFC code from
arch/sh/kernel/gpio.c + arch/sh/include/asm/gpio.h
to drivers/sh/pfc.c + include/linux/sh_pfc.h.

Similar to the INTC stuff. The non-SuperH specific
file location makes it possible to share the code
between multiple architectures.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-30 12:02:53 +09:00
Alexey Dobriyan
9a1607071c sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_file
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-30 12:02:50 +09:00
Magnus Damm
2ebe0ff7e6 sh: Add CPG save/restore code for sh7724 R-standby
Add sh7724 code to save and restore CPG state during
R-standby. Only CPG registers IRDACLKCR and SPUCLKCR
require software save and restore.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-30 12:02:49 +09:00
Paul Mundt
6ba653830c sh: Fix up the FPU emulation build.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-25 12:07:31 +09:00
Paul Mundt
0f09e197a3 sh: Apply the sleazy FPU changes for SH-2A FPU as well.
This plugs in the fpu_counter manipulation for the SH-2A side also.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-24 17:56:17 +09:00
Stuart Menefy
d3ea9fa0a5 sh: Minor optimisations to FPU handling
A number of small optimisations to FPU handling, in particular:

 - move the task USEDFPU flag from the thread_info flags field (which
   is accessed asynchronously to the thread) to a new status field,
   which is only accessed by the thread itself. This allows locking to
   be removed in most cases, or can be reduced to a preempt_lock().
   This mimics the i386 behaviour.

 - move the modification of regs->sr and thread_info->status flags out
   of save_fpu() to __unlazy_fpu(). This gives the compiler a better
   chance to optimise things, as well as making save_fpu() symmetrical
   with restore_fpu() and init_fpu().

 - implement prepare_to_copy(), so that when creating a thread, we can
   unlazy the FPU prior to copying the thread data structures.

Also make sure that the FPU is disabled while in the kernel, in
particular while booting, and for newly created kernel threads,

In a very artificial benchmark, the execution time for 2500000
context switches was reduced from 50 to 45 seconds.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-24 17:45:38 +09:00
Paul Mundt
49fb2cd257 Merge branch 'master' into sh/st-integration 2009-11-24 16:32:11 +09:00
Giuseppe CAVALLARO
a0458b07c1 sh: add sleazy FPU optimization
sh port of the sLeAZY-fpu feature currently implemented for some architectures
such us i386.

Right now the SH kernel has a 100% lazy fpu behaviour.
This is of course great for applications that have very sporadic or no FPU use.
However for very frequent FPU users...  you take an extra trap every context
switch.
The patch below adds a simple heuristic to this code: after 5 consecutive
context switches of FPU use, the lazy behavior is disabled and the context
gets restored every context switch.
After 256 switches, this is reset and the 100% lazy behavior is returned.

Tests with LMbench showed no regression.
I saw a little improvement due to the prefetching (~2%).

The tests below also show that, with this sLeazy patch, indeed,
the number of FPU exceptions is reduced.
To test this. I hacked the lat_ctx LMBench to use the FPU a little more.

   sLeasy implementation
   ===========================================
   switch_to calls            |  79326
   sleasy   calls             |  42577
   do_fpu_state_restore  calls|  59232
   restore_fpu   calls        |  59032

   Exceptions:  0x800 (FPU disabled  ): 16604

   100% Leazy (default implementation)
   ===========================================
   switch_to  calls            |  79690
   do_fpu_state_restore calls  |  53299
   restore_fpu  calls          |   53101

   Exceptions: 0x800 (FPU disabled  ):  53273

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-24 16:23:38 +09:00
David S. Miller
3505d1a9fd Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/sfc/sfe4001.c
	drivers/net/wireless/libertas/cmd.c
	drivers/staging/Kconfig
	drivers/staging/Makefile
	drivers/staging/rtl8187se/Kconfig
	drivers/staging/rtl8192e/Kconfig
2009-11-18 22:19:03 -08:00
Eric W. Biederman
6d4561110a sysctl: Drop & in front of every proc_handler.
For consistency drop & in front of every proc_handler.  Explicity
taking the address is unnecessary and it prevents optimizations
like stubbing the proc_handlers to NULL.

Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2009-11-18 08:37:40 -08:00
Paul Mundt
260af56271 Merge branch 'sh/stable-updates' 2009-11-18 10:53:52 +09:00
Thomas Gleixner
648f15345a sh: Fixup last users of irq_chip->typename
The typename member of struct irq_chip was kept for migration purposes
and is obsolete since more than 2 years. Fix up the leftovers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-18 10:50:22 +09:00
Eric W. Biederman
bb9074ff58 Merge commit 'v2.6.32-rc7'
Resolve the conflict between v2.6.32-rc7 where dn_def_dev_handler
gets a small bug fix and the sysctl tree where I am removing all
sysctl strategy routines.
2009-11-17 01:01:34 -08:00
Eric W. Biederman
a09b6e8118 sysctl sh: Remove dead binary sysctl support
Now that sys_sysctl is a generic wrapper around /proc/sys  .ctl_name
and .strategy members of sysctl tables are dead code.  Remove them.

Also add an C99 named initializer to the child member of unaligned_root
to prevent chaos as the ctl_table definition changes over time.

Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2009-11-12 02:05:03 -08:00
Paul Mundt
626ac8e138 sh64: Fix up the CONFIG_GENERIC_BUG=n build.
sh64 doesn't use GENERIC_BUG, which presently causes the handle_BUG()
code to blow up. Fix up the dependencies and get it all building again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-12 16:39:47 +09:00
Paul Mundt
e9c58fc57b sh: Use the generic I/O port base for slowdown.
This fixes up the build and behaviour for various configurations. Namely
the CONFIG_32BIT cases where legacy mappings do not exist, as well as the
sh64 build.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-12 16:36:26 +09:00
Paul Mundt
c4e708dc52 sh: Fix up the CONFIG_PERF_EVENTS=n build for SH-4.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-12 16:20:36 +09:00
Paul Mundt
0fe69d773f sh: perf events: Document SH-4A raw event codes.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-09 14:11:07 +09:00
Paul Mundt
76d2318020 Merge branch 'sh/stable-updates' 2009-11-09 10:55:36 +09:00
Paul Mundt
421b541110 sh: unwinder: Fix up invalid PC refetch in dwarf unwinder.
The dwarf unwinder presently attempts to provide a sane PC value if none
is provided, however the logic is broken and cases where a previous valid
dwarf frame exists along with a bogus PC value can still proceed. This
fixes up the test and prevents the unwinder from blowing up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-06 17:23:33 +09:00
Paul Mundt
1d823323f2 sh: perf events: Add support for SH7750-style counters.
This adds perf events support for the SH7750/SH7750S/SH7091 performance
counters.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-05 17:02:03 +09:00