Commit Graph

1039 Commits

Author SHA1 Message Date
Paul Mundt 7b022d07a0 sh: Tidy up the ldscript output format specifier.
Tie this in to the Makefile directly, where we already know what we are
running on. This tidies up the linker script a bit, and is prep work for
unifying the arch/sh/boot/compressed linker scripts.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10 00:25:08 +09:00
Paul Mundt dce97c8cb2 sh: Move the unified linker script in place, kill off old _64 one.
Just forcefully rename the _32 variant overtop, and kill off the now
unused _64 version.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 23:36:10 +09:00
Paul Mundt c3e2586b79 sh: Integrate sh64 bits in vmlinux_32.lds.S.
This adds all of the requisite bits from vmlinux_64.lds.S in to the _32
variant, resulting in a unified and generic linker script that can be
shared across both.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 23:33:02 +09:00
Paul Mundt 7cd0378ef4 sh: Fix up SHmedia module ELF relocations.
This fixes up the LSB setting for SHmedia branching in updated symbols
when processing module relocations.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 18:03:37 +09:00
Paul Mundt 1031a3a57e sh: Provide an __sdivsi3_2 export for sh64.
Newer code paths that are heavier in 64-bit math manage to get this
generated by newer compilers, provide a definition and export
accordingly. This is trivially wrapped around the existing __sdivsi3
code.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 17:57:21 +09:00
Paul Mundt 2bcfffa423 sh: Rename opcode_t to insn_size_t.
This is now clashing with a driver, so just rename it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 16:02:08 +09:00
Peter Griffin cd89436e54 sh: Add UBC trap vector for SH2A
Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 00:11:33 +09:00
Peter Griffin ba0d474082 sh: Add ptrace support for NOMMU debugging
Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 00:11:27 +09:00
Kieran Bingham e73173dbe5 sh: Fix UBC setup and registers for SH2A
Signed-off-by: Kieran Bingham <kieranbingham@gmail.com>
Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 00:09:21 +09:00
Paul Mundt 3b226e15be sh: Add clock id to sh-sci platform data on SH-Mobile CPUs.
This adds the clock specifier to all of the SH-Mobile sh-sci ports.
Impacted CPUs are SH7343/SH7366/SH7722/SH7723/SH7724.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 23:28:54 +09:00
Paul Mundt 7b551f9daa sh: Kill off the GENERIC_CALIBRATE_DELAY ifndef.
Now that everyone is using the clock framework directly and we
unconditionally provide our own calibrate_delay() function, having it
wrapped in an ifndef is no longer useful. So, kill it off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 22:14:01 +09:00
Paul Mundt ccdaeb4c8f sh: TMU platform data for SH-X3 proto CPU.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 22:09:30 +09:00
Paul Mundt c3d480ded1 sh: TMU platform data for SH7786.
Wires up all 12 TMU channels, with TMU0 and 1 used as clockevent and
clocksource respectively.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 21:57:04 +09:00
Paul Mundt c29418c2ae sh: Always fixup unaligned userspace accesses on sh64.
sh64 has traditionally had this configurable via a Kconfig option
(CONFIG_SH64_USER_MISALIGNED_FIXUP). In practice it has never really been
terribly useful to turn this off, so just get rid of the option entirely.

We leave the sysctl around so we don't end up breaking existing root
file systems, and to allow folks that really want this off to do so at
their own risk.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 20:32:56 +09:00
Paul Mundt b366328335 sh: Drop dead rules from arch/sh/kernel/Makefile_64.
Several of these options are specific to the SHcompact ISA and will need
to be rewritten for SHmedia if they are to be supported at all. Drop
the impossible rules for now.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 18:01:03 +09:00
Magnus Damm 47dd6f4439 sh: TMU platform data for sh7723
This patch adds TMU platform data for sh7723. Both clockevent
and clocksource support is enabled. While at it, adjust the
CMT clocksource rating to prioritize the TMU.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 17:47:16 +09:00
Magnus Damm 583d1d549f sh: enable TMU clocksource on sh7722
This patch enables the TMU clocksource on sh7722.
To prioritize TMU over CMT we also adjust the CMT
clock source rating.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 17:46:57 +09:00
Magnus Damm 4f5ecaa054 sh: clock framework update, fix count and kill off kref
This patch updates the clock framework use count code.
With this patch the enable() and disable() callbacks
only get called when counting from and to zero.
While at it the kref stuff gets replaced with an int.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 17:46:22 +09:00
Paul Mundt cb3a86c89e sh: Kill off sh64's hand-rolled syscall tracer.
This is no longer necessary, as there are now sufficient generic
alternatives available.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 17:25:35 +09:00
Paul Mundt 1af2fe45fe sh: Kill off the global rtc_lock with extreme prejudice.
Now that all of the possible users for rtc_lock have gone away, it is no
longer necessary to keep this lock definition around.

This follows several other architectures that have either recently
dropped it or never supported it in the first place.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:59:05 +09:00
Paul Mundt 6459d7bb72 sh: Kill off dead timer sysclass pm hooks.
With the conversion to generic clockevents these are completely unused,
so just kill it off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:47:48 +09:00
Paul Mundt 5ac5496411 sh: Kill off dead handle_timer_tick() code.
Nothing is using this anymore now that we have fully converted to generic
time, so kill it off completely.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:44:00 +09:00
Paul Mundt 6d134b9e8d sh: Wire up GENERIC_CMOS_UPDATE for the platforms that need it.
Now that everything has converted over to generic timekeeping, we need an
alternate method for keeping the RTC updated for those platforms that are
still using the rtc_sh_get/set_time pairs, presently limited to SH-03 and
the Dreamcast. This wires up the GENERIC_CMOS_UPDATE hooks for those to
maintain the same behaviour.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:36:13 +09:00
Paul Mundt b179b72fad sh: Rename arch/sh/kernel/time_32.c to arch/sh/kernel/time.c.
This is now fully generic, and used both by _32 and _64 variants.
Rename it accordingly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:17:36 +09:00
Paul Mundt add47067a8 sh: Finish the sh64 migration off of ARCH_USES_GETTIMEOFFSET.
This adds sh_tmu support to the SH-5 subtypes, which subsequently allows
us to kill off time_64.c and use the now generic time_32.c. As a bonus,
SH-5 now supports highres timers and tickless for the first time.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:12:17 +09:00
Paul Mundt c2ecb4c4a7 sh: Move out rtc-sh registration from time_64.c to setup-sh5.c
Now that the onchip_remap() mess is sorted out, the rtc-sh support code
for SH-5 can follow the same approach as the other CPUs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 15:39:25 +09:00
Magnus Damm e367592cc9 sh: TMU platform data for sh7785
This patch adds TMU platform data for sh7785. Both clockevent
and clocksource support is enabled.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 11:40:09 +09:00
Magnus Damm b3cacf3181 sh: call clock framework init() callback once
Make sure that clk->ops->init() only gets called once in
the case of CLK_ALWAYS_ENABLED. Without this patch the
init() callback may be called multiple times.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 11:38:28 +09:00
Paul Mundt c51279ec0d sh: Kill off unused SH-5 irq_describe cruft.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-07 18:17:20 +09:00
Paul Mundt 0fb849b9d7 sh: Integrate the SH-5 onchip_remap() more coherently.
Presently this is special-cased for early initialization. While there are
situations where these static early initializations are still necessary,
with minor changes it is possible to use this for the regular ioremap
implementation as well. This allows us to kill off the special-casing for
the remap completely and to start tidying up all of the SH-5
special-casing in drivers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-07 18:10:27 +09:00
Paul Mundt 25483efeb2 sh: Move dummy clockevents broadcast timer to its new home.
The old arch/sh/kernel/timers/ directly will be going away completely
once the rest of the TMU users are migrated, so move the dummy broadcast
driver up a level in preparation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 18:29:27 +09:00
Paul Mundt dec56e6312 sh: Kill off the now unused ARCH_USES_GETTIMEOFFSET code.
Now that the stragglers (MTU2/CMT/etc.) have been rewritten and we are
selecting both GENERIC_TIME and GENERIC_CLOCKEVENTS, the get_offset()
timer op is completely unused. As a result, we are now able to kill off
the ARCH_USES_GETTIMEOFFSET references.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 18:18:14 +09:00
Paul Mundt 46a12f7426 sh: Consolidate MTU2/CMT/TMU timer platform data.
All of the SH timers use a roughly identical structure for platform data,
which presently is broken out for each block. Consolidate all of these
definitions, as there is no reason for them to be broken out in the first
place.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:57:17 +09:00
Magnus Damm d43a41bf8b sh: TMU platform data for sh7722
This patch adds TMU platform data for sh7722. Only clockevent
mode is enabled for now, clocksource requires this patch:
"clocksource: setup mult_orig in clocksource_enable()"

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:41:37 +09:00
Magnus Damm 3280c8865e sh: remove old MTU2 driver
This patch removes the old MTU2 driver (CONFIG_SH_MTU2/timer-mtu2.c)

As replacement, select the sh_cmt driver with CONFIG_SH_TIMER_MTU2
and configure timer channel using platform data.

If multiple MTU channels are enabled using platform data, use the
earlytimer parameter on the kernel command line to select channel.
For instance, use "earlytimer=sh_mtu2.0" to select the first channel.

To verify which timer is being used, look at printouts or the timer
irq count in /proc/interrupts.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:40:13 +09:00
Magnus Damm da107c6ef9 sh: sh2a MTU2 platform data
This patch adds MTU2 platform data for the following cpus:
 - sh7201 (3/5 channels)
 - sh7203/sh7263 (2/4 channels)
 - sh7206 (3/5 channels)
 - MXG (3/5 channels)

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:38:07 +09:00
john stultz 7563431107 time: sh: convert to use arch_getoffset() infrastructure
Convert sh to use GENERIC_TIME via the arch_getoffset() infrastructure.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:32:55 +09:00
Thomas Gleixner d804983982 sh: remove obsolete hw_interrupt_type
Impact: cleanup

Convert the last remaining users to struct irq_chip and remove the
define.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:28:13 +09:00
Thomas Gleixner 0cd5f7b0c7 sh: remove obsolete no_irq_type
Impact: cleanup

convert the last remaining users to no_irq_chip

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:28:13 +09:00
Paul Mundt 66fdc95172 Merge branch 'timers/clocksource' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip 2009-05-03 17:24:55 +09:00
Magnus Damm f425752fc6 sh: remove old CMT driver
This patch removes the old CMT driver (CONFIG_SH_CMT/timer-cmt.c)

As replacement, select the sh_cmt driver with CONFIG_SH_TIMER_CMT
and configure timer channel using platform data.

If multiple CMT channels are enabled using platform data, use the
earlytimer parameter on the kernel command line to select channel.
For instance, use "earlytimer=sh_cmt.0" to select the first channel.

To verify which timer is being used, look at printouts or the timer
irq count in /proc/interrupts.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-30 13:21:14 +09:00
Magnus Damm 698aa99da5 sh: sh2/sh2a 16-bit CMT platform data
This patch adds 16-bit cmt platform data for the following cpus:
 - sh7619 (2 channels)
 - sh7203/sh7263 (2 channels)
 - sh7206 (2 channels)

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-30 13:20:37 +09:00
Paul Mundt 4278600644 sh: register the rtc-generic platform device properly.
The device registration was accidentally omitted, add it back in. Do some
basic device probing as well, so this doesn't show up for platforms that
tie in to the RTC interface properly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-28 23:12:10 +09:00
Magnus Damm 8e0b842948 sh: setup timers in late_time_init()
This patch moves the SuperH timer setup code from time_init()
to late_time_init(). Good things about this change:
 - interrupts: they are enabled at late_time_init()
 - mm: regular kmalloc() can be used at late_time_init()

Together with moving to late_time_init() this patch changes
the sh_cmt driver to always allocate with kmalloc(). This
simplifies the code a bit and also fixes section mismatches.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-28 18:01:25 +09:00
Tim Abbott 882016ff36 sh: Use __INIT macro instead of .text.init.
The sh architecture has some code in the .text.init section, but it
does not reference that section in its linker scripts.

This change moves this code from the .text.init section to the
.init.text section, which is presumably where it belongs.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-27 19:51:58 -07:00
Paul Mundt 47c8a08bbe sh: rtc-generic support.
This adds rtc-generic support for SUPERH32.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-27 17:34:39 +09:00
Paul Mundt 339b042bb4 Merge branches 'sh/stable-updates' and 'sh/pci-rework' 2009-04-27 09:45:43 +09:00
Tim Abbott bbe215c231 sh: convert to use __HEAD and HEAD_TEXT macros.
This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-26 09:20:39 -07:00
Paul Mundt 99ce567ba9 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-04-22 09:27:47 +09:00
Magnus Damm 8e19608e8b clocksource: pass clocksource to read() callback
Pass clocksource pointer to the read() callback for clocksources.  This
allows us to share the callback between multiple instances.

[hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods]
[akpm@linux-foundation.org: cleanup]
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-21 13:41:47 -07:00
Paul Mundt 4db25d496c Merge branch 'sh/stable-updates' into sh/for-2.6.30 2009-04-21 17:12:16 +09:00
Toshinobu Sugioka 8c31813f31 sh: Fix mmap2 for handling differing PAGE_SIZEs.
mmap2 uses a fixed page shift of 12, regardless of the PAGE_SIZE setting.
Fix up the mmap2 code to add some sanity checks on the mapping, and to
update pgoff accordingly.

Error handling bits based on 4280e3126f
("frv: fix mmap2 error handling").

Signed-off-by: Toshinobu Sugioka <sugioka@itonet.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-21 07:34:53 +09:00
Paul Mundt 0bb34a6bf1 sh: pci: Consolidate pci_iomap() and use the generic I/O base.
This consolidates the pci_iomap() definitions and reworks how the I/O
port base is handled. PCI channels can register their own I/O map base,
or if none is provided, the system-wide generic I/O base is used instead.

Functionally nothing changes, while this allows us to kill off lots of
I/O address special casing and lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 16:38:00 +09:00
Paul Mundt 8fb2bae4b4 sh: sh7724: Register CMT as an early platform device here too.
Follows the SH7722/SH7723 changes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-19 13:14:29 +09:00
Paul Mundt d9aed8b95f sh: sh7724: Don't default enable the RTC clock.
rtc-sh takes care of this now, so no need to have this always enabled.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-19 13:12:04 +09:00
Paul Mundt 22fd67c5c9 Merge branches 'sh/earlytimer' and 'sh/shmobile-r2r-staging' 2009-04-19 13:08:33 +09:00
Magnus Damm 28fde6863e sh: Early Platform Data for SuperH Mobile
Use plat_early_device_setup() to register Early Platform Data
for SuperH Mobile processors.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-19 13:06:25 +09:00
Magnus Damm 87a00dc059 sh: Add plat_early_device_setup()
Add a plat_early_device_setup() function to allow
processor-specific code to register Early Platform Data.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-19 13:06:25 +09:00
Magnus Damm eaab89197b sh: arch earlytimer support
Extend the 32-bit SuperH timer code to register and probe
the earlytimer class of Early Platform Drivers.

This registers the sh_cmt driver if compiled-in.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-19 13:06:24 +09:00
Magnus Damm 8ce0143b11 sh: pci io port base address code
Adds a __get_pci_io_base() function which is used to match a port range
against struct pci_channel. This allows us to detect if a port range is
assigned to pci or happens to be legacy port io. While at it, remove unused
cpu-specific cruft.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 16:00:14 +09:00
Paul Mundt 6a3395beb9 sh: sh7724: Add CMT clockevents support.
This enables support for the CMT clockevents driver on SH7724.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 15:36:13 +09:00
Kuninori Morimoto ad95b78c9f sh: sh7724: Add VEU support.
This adds uio_pdrv_genirq support for the VEU.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 14:52:13 +09:00
Kuninori Morimoto cd5b9ef776 sh: sh7724: Add VPU support.
This adds uio_pdrv_genirq support for the VPU.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 14:50:55 +09:00
Kuninori Morimoto 40c7e8be55 sh: sh7724: Add I2C support.
This adds support for the SH-Mobile I2C controller on the SH7724.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 14:49:00 +09:00
Kuninori Morimoto 0207a2efb4 sh: Add support for SH7724 (SH-Mobile R2R) CPU subtype.
This implements initial support for the SH-Mobile R2R CPU.
Based on Rev 0.11 of the initial SH7724 hardware manual.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 14:40:56 +09:00
Paul Mundt b8c193f88e sh: sh7723: Don't default enable the RTC clock.
rtc-sh takes care of this now, so no need to have this always enabled.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 14:16:33 +09:00
Paul Mundt 6bf853aeb1 sh: sh7722: Don't default enable the RTC clock.
rtc-sh takes care of this now, so no need to have this always enabled.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 14:15:38 +09:00
Kuninori Morimoto 0ee50254df sh: sh7786: modify usb setup timeout judgment bug.
This corrects a race with the PHY RST bit not being set properly if the
PLL status changes right before timeout. This resulted in it potentially
failing even if the device came up in time.

Special thanks to Mr. Juha Leppanen and Iwamatsu-san for reporting this
out and reviewing it.

Reported-by: Juha Leppanen <juha_motorsportcom@luukku.com>
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Tested-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-14 07:25:35 +09:00
Paul Mundt 090fed50ca sh: wire up sys_preadv/sys_pwritev() syscalls.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-06 09:00:16 -07:00
Linus Torvalds 45e36c1666 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: (23 commits)
  sh: sh7785lcr: Map whole PCI address space.
  sh: Fix up DSP context save/restore.
  sh: Fix up number of on-chip DMA channels on SH7091.
  sh: update defconfigs.
  sh: Kill off broken direct-mapped cache mode.
  sh: Wire up ARCH_HAS_DEFAULT_IDLE for cpuidle.
  sh: Add a command line option for disabling I/O trapping.
  sh: Select ARCH_HIBERNATION_POSSIBLE.
  sh: migor: Fix up CEU use flags.
  input: migor_ts: add wakeup support
  rtc: rtc-sh: use set_irq_wake()
  input: sh_keysc: use enable/disable_irq_wake()
  sh: intc: set_irq_wake() support
  sh: intc: install enable, disable and shutdown callbacks
  clocksource: sh_cmt: use remove_irq() and remove clockevent workaround
  sh: ap325 and Migo-R use new sh_mobile_ceu_info flags
  sh: Fix up -Wformat-security whining.
  sh: ap325rxa: Add ov772x support, again.
  sh: Sanitize asm/mmu.h for assembly use.
  sh: Tidy up sh7786 pinmux table.
  ...
2009-04-05 11:15:54 -07:00
Michael Trimarchi 01ab10393c sh: Fix up DSP context save/restore.
There were a number of issues with the DSP context save/restore code,
mostly left-over relics from when it was introduced on SH3-DSP with
little follow-up testing, resulting in things like task_pt_dspregs()
referencing incorrect state on the stack.

This follows the MIPS convention of tracking the DSP state in the
thread_struct and handling the state save/restore in switch_to() and
finish_arch_switch() respectively. The regset interface is also updated,
which allows us to finally be rid of task_pt_dspregs() and the special
cased task_pt_regs().

Signed-off-by: Michael Trimarchi <michael@evidence.eu.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-04 11:48:11 -04:00
Alexey Dobriyan 6f2c55b843 Simplify copy_thread()
First argument unused since 2.3.11.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02 19:04:51 -07:00
Paul Mundt e8208828dc sh: Kill off broken direct-mapped cache mode.
Forcing direct-mapped worked on certain older 2-way set associative
parts, but was always error prone on 4-way parts. As these are the
norm these days, there is not much point in continuing to support this
mode. Most of the folks that used direct-mapped mode generally just
wanted writethrough caching in the first place..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-02 17:40:16 +09:00
Paul Mundt e869a90ee1 sh: Wire up ARCH_HAS_DEFAULT_IDLE for cpuidle.
cpuidle wants ARCH_HAS_DEFAULT_IDLE defined in order to use the
default idle loop. So, make it accessible and enable it for all
sh machines.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-02 13:08:31 +09:00
Paul Mundt eeee7853c4 sh: Add a command line option for disabling I/O trapping.
This adds a 'noiotrap' kernel command line option to permit disabling of
I/O trapping. This is mostly useful for running on emulators where the
physical device limitations are not an issue.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-02 12:31:16 +09:00
Paul Mundt c4361bb64b Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-04-02 11:17:41 +09:00
Paul Mundt 0bd4781d40 sh: Fix up -Wformat-security whining.
Triggers -Werror on gcc-4.3:

arch/sh/kernel/setup.c: In function 'early_parse_mem':
arch/sh/kernel/setup.c:111: error: format not a string literal and no format arguments
...

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-31 08:25:54 +09:00
Kuninori Morimoto 1c58b0b1a1 sh: Tidy up sh7786 pinmux table.
Formatting and typo fix.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-31 07:39:51 +09:00
Kuninori Morimoto 0824806b2a sh: Remove buggy definition from SH7786 pinmux_data[]
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-31 07:36:24 +09:00
Rusty Russell 1a8a51004a cpumask: remove references to struct irqaction's mask field.
Impact: cleanup

It's unused, since about 1995.  So remove all initialization of it in
preparation for actually removing the field.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
2009-03-30 22:05:14 +10:30
Linus Torvalds a8416961d3 Merge branch 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (32 commits)
  x86: disable __do_IRQ support
  sparseirq, powerpc/cell: fix unused variable warning in interrupt.c
  genirq: deprecate obsolete typedefs and defines
  genirq: deprecate __do_IRQ
  genirq: add doc to struct irqaction
  genirq: use kzalloc instead of explicit zero initialization
  genirq: make irqreturn_t an enum
  genirq: remove redundant if condition
  genirq: remove unused hw_irq_controller typedef
  irq: export remove_irq() and setup_irq() symbols
  irq: match remove_irq() args with setup_irq()
  irq: add remove_irq() for freeing of setup_irq() irqs
  genirq: assert that irq handlers are indeed running in hardirq context
  irq: name 'p' variables a bit better
  irq: further clean up the free_irq() code flow
  irq: refactor and clean up the free_irq() code flow
  irq: clean up manage.c
  irq: use GFP_KERNEL for action allocation in request_irq()
  kernel/irq: fix sparse warning: make symbol static
  irq: optimize init_kstat_irqs/init_copy_kstat_irqs
  ...
2009-03-26 16:06:50 -07:00
Magnus Damm 615e73b3cd sh: disallow kexec virtual entry
Older versions of kexec-tools has a zImage loader that
passes a virtual address as entry point. The elf loader
otoh it passes a physical address as entry point, and
pages are always passed as physical addresses as well.

Only allow physical addresses from now on.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-20 18:56:04 +09:00
Paul Mundt 7e6b6f2b94 sh: kexec jump: fix for ftrace.
Save and restore ftrace state when returning from kexec jump in
machine_kexec(). Follows the x86 change.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-18 19:07:16 +09:00
Paul Mundt a6bab7b5c1 sh: kexec: Drop SR.BL bit toggling.
For the time being, this creates far more problems than it solves,
evident by the second local_irq_disable(). Kill all of this off
and rely on IRQ disabling to protect against the VBR reload.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-18 19:06:15 +09:00
Magnus Damm b7cf6ddc13 sh: add kexec jump support
Add kexec jump support to the SuperH architecture.

Similar to the x86 implementation, with the following
exceptions:

- Instead of separating the assembly code flow into
two parts for regular kexec and kexec jump we use a
single code path. In the assembly snippet regular
kexec is just kexec jump that never comes back.

- Instead of using a swap page when moving data between
pages the page copy assembly routine has been modified
to exchange the data between the pages using registers.

- We walk the page list twice in machine_kexec() to
do and undo physical to virtual address conversion.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-18 18:57:43 +09:00
Magnus Damm e4e063d0c2 sh: rework kexec segment code
Rework the kexec code to avoid using P2SEG. Instead
we walk the page list in machine_kexec() and convert
the addresses from physical to virtual using C.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-18 18:44:32 +09:00
Magnus Damm 7be5c55af0 sh: simplify kexec vbr code
Setup the vbr register in machine_kexec(). This
instead of passing values to the assembly snippet.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-18 18:44:22 +09:00
Paul Mundt 8263a67e16 sh: Support for extended ASIDs on PTEAEX-capable SH-X3 cores.
This adds support for extended ASIDs (up to 16-bits) on newer SH-X3 cores
that implement the PTAEX register and respective functionality. Presently
only the 65nm SH7786 (90nm only supports legacy 8-bit ASIDs).

The main change is in how the PTE is written out when loading the entry
in to the TLB, as well as in how the TLB entry is selectively flushed.

While SH-X2 extended mode splits out the memory-mapped U and I-TLB data
arrays for extra bits, extended ASID mode splits out the address arrays.
While we don't use the memory-mapped data array access, the address
array accesses are necessary for selective TLB flushes, so these are
implemented newly and replace the generic SH-4 implementation.

With this, TLB flushes in switch_mm() are almost non-existent on newer
parts.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-17 17:49:49 +09:00
Francesco VIRLINZI 50cca715a6 sh: clkfwk: Safer resume from hibernation.
This patch fixes a possible problem in the resume from
hibenration. It temporaneally saves the clk->rate on the
stack to avoid any possible change during the clk->set_parent(..)
call.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 20:11:00 +09:00
Paul Mundt e9edb3fec2 sh: Consolidate SH-Mobile CPU code in arch/sh/kernel/cpu/shmobile/.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 20:00:17 +09:00
Magnus Damm 7759491274 sh: SuperH Mobile suspend support
This patch contains CONFIG_SUSPEND support to the SuperH
architecture. If enabled, SuperH Mobile processors will
register their suspend callbacks during boot.

To suspend, use "echo mem > /sys/power/state". To allow
wakeup, make sure "/sys/device/platform/../power/wakeup"
contains "enabled". Additional per-device driver patches
are most likely needed.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 19:52:53 +09:00
Nobuhiro Iwamatsu 7a516280b6 sh: Fix compile error by operands(mov.l) in sh3/entry.S
-- log --
arch/sh/kernel/cpu/sh4/../sh3/entry.S:365: Error: invalid operands for opcode
make[4]: *** [arch/sh/kernel/cpu/sh4/../sh3/entry.o] Error 1
make[3]: *** [arch/sh/kernel/cpu/sh4] Error 2
-- log --

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 19:49:21 +09:00
Kuninori Morimoto 4c3f450ba4 sh: Add OHCI USB support for SH7786
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 19:40:34 +09:00
Ingo Molnar edb35028e4 Merge branches 'irq/genirq' and 'linus' into irq/core 2009-03-16 09:20:13 +01:00
Francesco VIRLINZI 4a55026fd7 sh: clkfwk: Add resume from hibernation support.
This patch adds PM support to the clock framework.
With this, resume from hibernation is properly supported.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-11 17:18:50 +09:00
Francesco VIRLINZI d680c76ecc sh: clkfwk: add clk_set_parent/clk_get_parent
This patch adds the clk_set_parent/clk_get_parent routines to the sh
clock framework.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-11 17:18:46 +09:00
Yoshihiro Shimoda 2f47f44790 sh: Support fixed 32-bit PMB mappings from bootloader.
This provides a method for supporting fixed PMB mappings inherited from
the bootloader, as an alternative to the dynamic PMB mapping currently
used by the kernel. In the future these methods will be combined.

P1/P2 area is handled like a regular 29-bit physical address, and local
bus device are assigned P3 area addresses.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 15:49:54 +09:00
Magnus Damm 2ef7f0dab6 sh: hibernation support
Add Suspend-to-disk / swsusp / CONFIG_HIBERNATION support
to the SuperH architecture.

To suspend, use "swapon /dev/sda2; echo disk > /sys/power/state"
To resume, pass "resume=/dev/sda2" on the kernel command line.

The patch "pm: rework includes, remove arch ifdefs V2" is
needed to allow the generic swsusp code to build properly.

Hibernation is not enabled with this patch though, a patch
setting ARCH_HIBERNATION_POSSIBLE will be submitted later.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 12:55:40 +09:00
Paul Mundt edab56f4c9 sh: multiple vectors per irq - sh7720.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:21:02 +09:00
Paul Mundt 56d604defa sh: multiple vectors per irq - sh7710.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:20:48 +09:00
Paul Mundt 0caedb02c4 sh: multiple vectors per irq - sh7705.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:20:32 +09:00
Paul Mundt 592acbda89 sh: multiple vectors per irq - sh770x.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:20:14 +09:00
Paul Mundt 053bfc5360 sh: multiple vectors per irq - mxg.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:19:54 +09:00
Paul Mundt 5dece2bbda sh: multiple vectors per irq - sh7619.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:19:31 +09:00
Paul Mundt f858abbecd sh: multiple vectors per irq - sh7206.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 18:34:15 +09:00
Paul Mundt d55eedd57d sh: multiple vectors per irq - sh7201.
Follow the conversions as per the other subtypes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 18:21:38 +09:00
Paul Mundt e45efe68d1 sh: multiple vectors per irq - sh7263.
Convert over the SH7263 IRQ groups as well.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 18:02:33 +09:00
Paul Mundt bb943a286c sh: multiple vectors per irq - sh7203.
Follow the conversions as per the other subtypes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 17:58:51 +09:00
Nobuhiro Iwamatsu 075901af28 sh: Restore RTC IRQ setting for SH7763 setup.
This was accidentally dropped in the multiple vectors per irq conversion.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 14:37:34 +09:00
Nobuhiro Iwamatsu a6bc77241d sh: multiple vectors per irq - sh7763
Update intc tables and platform data to use one linux irq
per maskable interrupt source instead of keeping the one-to-one
mapping between vectors and linux irqs.

This fixes potential irq masking issues for sh7763 hardware
blocks such as RTC/SCIF/DMAC/GETHER/PCIC5/MMCIF/SIM/GPIO/USBF.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 14:18:43 +09:00
Kuninori Morimoto 55ba99eb21 sh: Add support for SH7786 CPU subtype.
This adds preliminary support for the SH7786 CPU subtype.

While this is a dual-core CPU, only UP is supported for now. L2 cache
support is likewise not yet implemented.

More information on this particular CPU subtype is available at:

	http://www.renesas.com/fmwk.jsp?cnt=sh7786_root.jsp&fp=/products/mpumcu/superh_family/sh7780_series/sh7786_group/

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-03 15:40:25 +09:00
Paul Mundt 0d5e19ab07 sh: Fix up SH-X3 general exception handler build.
With the recent entry.S refactoring, the SH-X3 path had a mov.l for a
register to register copy, resulting in:

  AS      arch/sh/kernel/cpu/sh4/../sh3/entry.o
arch/sh/kernel/cpu/sh4/../sh3/entry.S: Assembler messages:
arch/sh/kernel/cpu/sh4/../sh3/entry.S:366: Error: invalid operands for opcode
make[3]: *** [arch/sh/kernel/cpu/sh4/../sh3/entry.o] Error 1

Switch it over to a mov to fix it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 17:02:28 +09:00
Magnus Damm 57e41c86e2 sh: multiple vectors per irq - sh7785
Update intc tables and platform data to use one linux irq
per maskable interrupt source instead of keeping the one-to-one
mapping between vectors and linux irqs.

This fixes potential irq masking issues for sh7785 hardware
blocks such as SCIF/DMAC/PCIC5/MMCIF/GDTA/FLCTL/GPIO

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Tested-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:53:50 +09:00
Magnus Damm a842fb2d11 sh: multiple vectors per irq - sh7780
Update intc tables and platform data to use one linux irq
per maskable interrupt source instead of keeping the one-to-one
mapping between vectors and linux irqs.

This fixes potential irq masking issues for sh7780 hardware
blocks such as SCIF/RTC/DMAC/PCIC5/MMCIF/FLCTL/GPIO

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:53:50 +09:00
Magnus Damm 69977e7e25 sh: multiple vectors per irq - sh7750
Update intc tables and platform data to use one linux irq
per maskable interrupt source instead of keeping the one-to-one
mapping between vectors and linux irqs.

This fixes potential irq masking issues for sh775x hardware
blocks such as SCI/SCIF/RTC/DMAC/TMU2/REF.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:53:50 +09:00
Magnus Damm bdaa6e8062 sh: multiple vectors per irq - base
Instead of keeping the single vector -> single linux irq mapping
we extend the intc code to support merging of vectors to a single
linux irq. This helps processors such as sh7750, sh7780 and sh7785
which have more vectors than masking ability. With this patch in
place we can modify the intc tables to use one irq per maskable
irq source. Please note the following:

 - If multiple vectors share the same enum then only the
   first vector will be available as a linux irq.

 - Drivers may need to be rewritten to get pending irq
   source from the hardware block instead of irq number.

This patch together with the sh7785 specific intc tables solves
DMA controller irq issues related to buggy interrupt masking.

Reported-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:53:50 +09:00
Magnus Damm 0197f21ca5 sh: prefetch early exception data on sh4/sh4a.
Prefetch early exception data. There is unused space in our
exception handler cache line anyway, so this is almost free.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:41:17 +09:00
Magnus Damm 4f099ebb27 sh: remove EXPEVT vector from stack on sh3/sh4/sh4a
Remove EXPEVT vector from the stack, lookup_exception_vector()
for sh3/sh4/sh4a is already using k2 to get the vector.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:26:19 +09:00
Magnus Damm 1dd22722f6 sh: rework register restore code for sh3/sh4/sh4a
This patch reworks the sh3/sh4/sh4a register restore code in
the following ways:
 - break out restore_regs() from restore_all()
 - the register saving order is unchanged
 - use restore_regs() in sh_bios_handler and restore_all
 - document the function

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:26:14 +09:00
Magnus Damm 1d015cf02a sh: shared register saving code for sh3/sh4/sh4a
This patch reworks the sh3/sh4/sh4a register saving code in
the following ways:
 - break out prepare_stack_save_dsp() from handle_exception()
 - break out save_regs() from handle_exception()
 - the register saving order is unchanged
 - align new functions to fit in cache lines
 - separate exception code from interrupt code
 - keep main code flow in a single cache line per exception vector
 - use bsr/rts for regular functions (save pr first)
 - keep data in one shared cache line (exception_data)
 - document the functions
 - tie in the hp6xx code

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:26:10 +09:00
Ingo Molnar 8f8573ae9f Merge branches 'irq/genirq', 'irq/sparseirq' and 'irq/urgent' into irq/core 2009-02-13 11:57:18 +01:00
Paul Mundt 41480ae7a3 Merge branch 'sh/stable-updates' 2009-02-12 17:27:56 +09:00
Tobias Klauser 270c5609e2 sh: Storage class should be before const qualifier
The C99 specification states in section 6.11.5:

The placement of a storage-class specifier other than at the
beginning of the declaration specifiers in a declaration is an
obsolescent feature.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-12 17:26:09 +09:00
Paul Mundt c161e40f45 sh: Don't enable GENERIC_TIME for the CMT clockevent driver yet.
GENERIC_TIME still depends on the clocksource bits being there, which is
presently not supported. This allows the CMT clockevent driver to be used
alongside alternate system timers that do not yet provide a clocksource
of their own (MTU2 and so on in the case of SH-2A).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 18:11:25 +09:00
Paul Mundt d63f3a5857 sh: Fix up MTU2 support for SH7203.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 18:10:13 +09:00
Magnus Damm 424f59d04d sh: CMT platform data for sh7723/sh7722/sh7366/sh7343
CMT platform data for SuperH Mobile sh7723/sh7722/sh7343/sh7366.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 17:02:51 +09:00
Magnus Damm 07821d3310 sh: fix no sys_timer case
Handle the case with a sys_timer set to NULL.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 16:45:47 +09:00
Magnus Damm 70f0800133 sh: tmu disable support
Add TMU disable support so we can use other clockevents.
Also, setup the clockevent rating.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 16:44:18 +09:00
Magnus Damm 955c077872 sh: rework clocksource and sched_clock
Rework and simplify the sched_clock and clocksource code. Instead
of registering the clocksource in a shared file we move it into the
tmu driver. Also, add code to handle sched_clock in the case of no
clocksource.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 16:44:17 +09:00
Paul Mundt e4e3c3f17f Merge branch 'sh/stable-updates' 2009-01-29 11:56:45 +09:00
Paul Mundt 03f07876df sh: Fix up spurious syscall restarting.
The T-bit manipulation for syscall error checking had the side effect of
spuriously returning ERESTART* errno values over EINTR. So, we simplify
the error checking a bit and leave the T-bit alone.

Reported-by: Kaz Kojima <kkojima@rr.iij4u.or.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:03 +09:00
Carmelo AMOROSO 0f6dee232f sh: fcnvds fix with denormalized numbers on SH-4 FPU.
This fixes a bug in the FPU exception handler for the FCNVDS instruction.
To get the register number the instruction is shifted right by 9,
though it should be shifted right by 8.

More information at ST Linux bugzilla:

	https://bugzilla.stlinux.com/show_bug.cgi?id=4892

Signed-off-by: Giuseppe Di Giore <giuseppe.di-giore@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:02 +09:00
Christopher SMITH 4886516310 sh: Only reserve memory under CONFIG_ZERO_PAGE_OFFSET when it != 0.
Signed-off-by: Chris Smith <chris.smith@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:02 +09:00
Paul Mundt 57e97cb8be sh: Fix up GENERIC_GPIO build for ARCH_WANT_OPTIONAL_GPIO cases.
CPUs define pinmux tables through the optional interface, while boards
that require demux of their own require it explicitly. Roll the Makefile
rules back to depend on GENERIC_GPIO, which covers both cases.

Fixes a link error with an undefined reference to register_pinmux() on
optional platforms.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:10 +09:00
Magnus Damm 69edbba002 sh: use gpiolib
This patch updates the SuperH gpio code to make use of gpiolib. The
gpiolib callbacks get() and set() are lockless, but we use our own
spinlock for the other operations to make sure hardware register
bitfield accesses stay atomic.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:10 +09:00
Magnus Damm 3292094e88 sh: lockless gpio_set_value()
This patch optimizes the gpio data register handling for gpio_set_value().

Instead of using the good old spinlock-plus-read-modify-write strategy
we now use a shadow register and atomic operations.

This improves the bitbanging mmc performance on Migo-R from 26 Kbytes/s
to 40 Kbytes/s.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:10 +09:00
Magnus Damm 0fc64cc0a2 sh: lockless gpio_get_value()
This patch separates the register read and write functions to
allow lockless gpio_get_value().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:09 +09:00
Magnus Damm 18801be7f8 sh: make gpio_get/set_value() O(1)
This patch modifies the table based SuperH gpio implementation to
make use of direct table lookups. With this change the functions
gpio_get_value() and gpio_set_value() are O(1).

Tested on Migo-R using bitbanging mmc. Performance is improved from
11 KBytes/s to 26 Kbytes/s.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:09 +09:00
SUGIOKA Toshinobu 2afb447f33 sh: fix unaligned and nonexistent address handling
unaligned and nonexistent address causes wrong exception
handling in traps_32.c(handle_unaligned_access).

'handle_unalinged_ins' should return -EFAULT if address error
is fixed up with kernel exception table, otherwise
'handle_unaligned_access' increases already fixed program counter
and then crash.

for example
   ioctl(fd, TCGETA, (struct termio *)-1)
never return and stay in TASK_UNINTERRUPTIBLE state forever
in my kernel.

Signed-off-by: SUGIOKA Toshinobu <sugioka@itonet.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 18:35:55 +09:00
Magnus Damm 3442c0d627 sh: export the sh7343 JPU to user space
This patch exports the sh7343 JPU to user space using uio_pdrv_genirq,
very similar to the sh7722 JPU patch by Hayama-san.

While at it fix up the end of the sh7722 JPU iomem resource.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:44:26 +09:00
Paul Mundt 5e6136135d sh: Drop the BKL from sys_execve() on SH-5.
Brings it in line with the SH implementation, the BKL is not
necessary here.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:42:55 +09:00
Heiko Carstens 1134723e96 [CVE-2009-0029] Remove __attribute__((weak)) from sys_pipe/sys_pipe2
Remove __attribute__((weak)) from common code sys_pipe implemantation.
IA64, ALPHA, SUPERH (32bit) and SPARC (32bit) have own implemantations
with the same name. Just rename them.
For sys_pipe2 there is no architecture specific implementation.

Cc: Richard Henderson <rth@twiddle.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2009-01-14 14:15:15 +01:00
Heiko Carstens e55380edf6 [CVE-2009-0029] Rename old_readdir to sys_old_readdir
This way it matches the generic system call name convention.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2009-01-14 14:15:15 +01:00
Yinghai Lu dee4102a9a sparseirq: use kstat_irqs_cpu instead
Impact: build fix

Ingo Molnar wrote:

> tip/arch/blackfin/kernel/irqchip.c: In function 'show_interrupts':
> tip/arch/blackfin/kernel/irqchip.c:85: error: 'struct kernel_stat' has no member named 'irqs'
> make[2]: *** [arch/blackfin/kernel/irqchip.o] Error 1
> make[2]: *** Waiting for unfinished jobs....
>

So could move kstat_irqs array to irq_desc struct.

(s390, m68k, sparc) are not touched yet, because they don't support genirq

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-11 15:53:13 +01:00
Russell King ba84be2338 remove linux/hardirq.h from asm-generic/local.h
While looking at reducing the amount of architecture namespace pollution
in the generic kernel, I found that asm/irq.h is included in the vast
majority of compilations on ARM (around 650 files.)

Since asm/irq.h includes a sub-architecture include file on ARM, this
causes a negative impact on the ccache's ability to re-use the build
results from other sub-architectures, so we have a desire to reduce the
dependencies on asm/irq.h.

It turns out that a major cause of this is the needless include of
linux/hardirq.h into asm-generic/local.h.  The patch below removes this
include, resulting in some 250 to 300 files (around half) of the kernel
then omitting asm/irq.h.

My test builds still succeed, provided two ARM files are fixed
(arch/arm/kernel/traps.c and arch/arm/mm/fault.c) - so there may be
negative impacts for this on other architectures.

Note that x86 does not include asm/irq.h nor linux/hardirq.h in its
asm/local.h, so this patch can be viewed as bringing the generic version
into line with the x86 version.

[kosaki.motohiro@jp.fujitsu.com: add #include <linux/irqflags.h> to acpi/processor_idle.c]
[adobriyan@gmail.com: fix sparc64]
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:13 -08:00
Linus Torvalds b840d79631 Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (66 commits)
  x86: export vector_used_by_percpu_irq
  x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and()
  sched: nominate preferred wakeup cpu, fix
  x86: fix lguest used_vectors breakage, -v2
  x86: fix warning in arch/x86/kernel/io_apic.c
  sched: fix warning in kernel/sched.c
  sched: move test_sd_parent() to an SMP section of sched.h
  sched: add SD_BALANCE_NEWIDLE at MC and CPU level for sched_mc>0
  sched: activate active load balancing in new idle cpus
  sched: bias task wakeups to preferred semi-idle packages
  sched: nominate preferred wakeup cpu
  sched: favour lower logical cpu number for sched_mc balance
  sched: framework for sched_mc/smt_power_savings=N
  sched: convert BALANCE_FOR_xx_POWER to inline functions
  x86: use possible_cpus=NUM to extend the possible cpus allowed
  x86: fix cpu_mask_to_apicid_and to include cpu_online_mask
  x86: update io_apic.c to the new cpumask code
  x86: Introduce topology_core_cpumask()/topology_thread_cpumask()
  x86: xen: use smp_call_function_many()
  x86: use work_on_cpu in x86/kernel/cpu/mcheck/mce_amd_64.c
  ...

Fixed up trivial conflict in kernel/time/tick-sched.c manually
2009-01-02 11:44:09 -08:00
Al Viro 18d8fda7c3 take init_fs to saner place
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31 18:07:42 -05:00
Linus Torvalds 1db2a5c11e Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (85 commits)
  [S390] provide documentation for hvc_iucv kernel parameter.
  [S390] convert ctcm printks to dev_xxx and pr_xxx macros.
  [S390] convert zfcp printks to pr_xxx macros.
  [S390] convert vmlogrdr printks to pr_xxx macros.
  [S390] convert zfcp dumper printks to pr_xxx macros.
  [S390] convert cpu related printks to pr_xxx macros.
  [S390] convert qeth printks to dev_xxx and pr_xxx macros.
  [S390] convert sclp printks to pr_xxx macros.
  [S390] convert iucv printks to dev_xxx and pr_xxx macros.
  [S390] convert ap_bus printks to pr_xxx macros.
  [S390] convert dcssblk and extmem printks messages to pr_xxx macros.
  [S390] convert monwriter printks to pr_xxx macros.
  [S390] convert s390 debug feature printks to pr_xxx macros.
  [S390] convert monreader printks to pr_xxx macros.
  [S390] convert appldata printks to pr_xxx macros.
  [S390] convert setup printks to pr_xxx macros.
  [S390] convert hypfs printks to pr_xxx macros.
  [S390] convert time printks to pr_xxx macros.
  [S390] convert cpacf printks to pr_xxx macros.
  [S390] convert cio printks to pr_xxx macros.
  ...
2008-12-28 12:33:21 -08:00
Martin Schwidefsky fc5243d98a [S390] arch_setup_additional_pages arguments
arch_setup_additional_pages currently gets two arguments, the binary
format descripton and an indication if the process uses an executable
stack or not. The second argument is not used by anybody, it could
be removed without replacement.

What actually does make sense is to pass an indication if the process
uses the elf interpreter or not. The glibc code will not use anything
from the vdso if the process does not use the dynamic linker, so for
statically linked binaries the architecture backend can choose not
to map the vdso.

Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-12-25 13:38:54 +01:00
Takanari Hayama 7d91fcfcb9 sh: add UIO support for JPU on SH7722.
Add JPU support on Migo-R via UIO. This make use of Magnus's
generic UIO platform driver. Chunk of contiguous memory to hold
intermediate image and compressed data during encode and decode.

Signed-off-by: Takanari Hayama <taki@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:49 +09:00
Paul Mundt 5d2685d0b3 sh: Conditionalize the code dumper on CONFIG_DUMP_CODE.
We don't really want this enabled by default, but it is still quite
useful for debugging. So, make it conditional and leave it off by
default.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:47 +09:00
Paul Mundt 740a3e677b sh: Enable skipping of bss on debug platforms for sh32 also.
This enables the same functionality that sh64 has for sh32. When running
on simulated hardware or via remote memory via the debug interface,
memory is gauranteed to be zero on boot already, and skipping the zeroing
of BSS has measurable boot time benefits.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:47 +09:00
Paul Mundt 073da9c0de sh: Kill off cf-enabler with extreme prejudice.
Now that the rest of the boards that were using cf-enabler "generically"
have switched to setting up their mappings on their own, only the mach-se
boards were left using it. All of the cf-enabler using mach-se boards
use a special initialization of the MRSHPC windows rather than going
through the special PTE as other SH-4 platforms do. This consolidates
the MRSHPC setup logic, hooks it up on the boards that care, and gets rid
of any and all remaining references to cf-enabler.

This has been long overdue, as cf-enabler has been the bane of
arch/sh/kernel for the last 7 years. Good riddance.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:46 +09:00
Paul Mundt 43f8f9b95b sh: Simplify kernel_thread_helper() for sh32.
This can use the same implementation as sh64, the generated assembly is
the same between the new and old version, so there is not much point in
leaving it open coded in inline assembly.

This is preparatory work for future consolidation of the _32/_64
variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:44 +09:00
Paul Mundt 7b80fb32b3 sh: Kill off mv_heartbeat() from the machvec.
Nothing is using this any more, so get rid of it before anyone gets the
bright idea to start using it again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:44 +09:00
Paul Mundt ca0c14e447 sh: Kill off sh_bios_in_gdb_mode().
With the reworked kgdb support, we always detach and reinitialize the
stub. This was mostly a feature for handoffs between sh-ipl+g and the
kgdb stub, but virtually no sh-ipl+g versions ever had this working
right in the first place.

Given that the sh-ipl+g stubs in general use today don't even support
the GDB stub, and we have already killed off the special casing in the
sh-sci serial driver, kill off this now unused symbol too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:44 +09:00
Paul Mundt a9df1ed92f sh: export sh_bios_get_node_addr() symbol for stnic module.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:44 +09:00
Paul Mundt 8e32018b04 sh: Run sh_bios through a long overdue Lindent.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:44 +09:00
Paul Mundt 180ae2037f sh: Provide sdivsi3/udivsi3/udivdi3 for sh64, kill off libgcc linking.
This moves in the necessary libgcc bits and kills off the libgcc linking
for sh64 kernels as well.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:05 +09:00
Paul Mundt 4466b20cfc sh: Add SH-5 optimized memcpy()/memset()/strcpy()/strlen().
Adopted from the uClibc optimized string versions.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:05 +09:00
Paul Mundt 776d6c298a sh: Kill off remaining CONFIG_SH_KGDB bits.
Now that we use the generic stub, kill off all of the left over
references.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:05 +09:00
Paul Mundt ab6e570ba3 sh: Generic kgdb stub support.
This migrates from the old bitrotted kgdb stub implementation and moves
to the generic stub. In the process support for SH-2/SH-2A is also added,
which the old stub never provided.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:04 +09:00
Paul Mundt dd76279b47 sh: Provide linux/regset.h interface for SH-5.
Plugs in general and FPU regsets.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:04 +09:00
Paul Mundt 94e2fb3d3e sh: Provide asm/syscall.h for SH-5.
This provides the asm/syscall.h implementation for sh64 parts.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:04 +09:00
Paul Mundt 6ac034375f sh: Handle cases where setup{_rt,}_frame() fail on SH-5 signal delivery.
Presently these cases are not handled properly due to the return value
not being passed back. This needs to be correct to get proper behaviour
out of things like the tracehook signal notifier, amongst others.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:04 +09:00
Paul Mundt a99d6fde69 sh: Convert sh64 /proc/asids to debugfs and generic sh.
This converts the sh64 /proc/asids entry to debugfs and enables it for
all SH parts that have debugfs enabled.

On MMU systems this can be used to determine which processes are using
which ASIDs which in turn can be used for finer grained cache tag
analysis.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:03 +09:00
Paul Mundt 4d1f3bbec4 sh: Kill off sh64's unused alloc/free_task_struct() definitions.
These were left over from some time ago, sh64 never got around to
defining __HAVE_ARCH_TASK_STRUCT_ALLOCATOR during the conversion, and it
has no need to. Kill these off and use the generic versions instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:03 +09:00
Aoi Shinkai bd40e81323 sh: Delete unnecessary mov in the interrupt exception entry point.
The INTEVT read at interrupt exception entry is uneccessary, as the read
is deferred until we are ready to enter do_IRQ(). The kgdb nmi path still
requires it, so move it there.

Signed-off-by: Aoi Shinkai <shinkoi2005@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:02 +09:00
Paul Mundt b5cfeac990 sh: Provide ftrace_make_call()/ftrace_make_nop().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:02 +09:00
Magnus Damm 3e51762759 sh: move the hp6xx pm code
Move the not-so-generic pm code from arch/sh/kernel/pm.c to the
platform directory together with the rest of the hp6xx pm code.

This is done to let non-hp6xx platforms enable CONFIG_PM.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:52 +09:00
Magnus Damm 551ea2b40e sh: sh7343 scif configuration update
Fix interrupt values for the first sh7343 SCIF port and
update the configuration to include the remaining 3 ones.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:51 +09:00
Magnus Damm 0c0daec7ca sh: propagate r_clk
Make sure the 32 KHz r_clk rate gets propagated correctly. Without
this fix the clocks for RTC, CMT, KEYSC and RWDT are stuck at 0 Hz.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:51 +09:00
Peter Griffin 2825999e8a sh: Add support for SH7201 CPU subtype.
This patch adds support for the SH-2A FPU based SH7201 processor subtype.

Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:50 +09:00
Paul Mundt 1da1180c6e sh: Split out the idle loop for reuse between _32/_64 variants.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:50 +09:00
Paul Mundt f74c034d52 sh: do not latency trace idle.
Description snipped from Steven Rostedt's PPC patch:

    When idle is called, interrupts are blocked, but the idle
    function will still wake up on an interrupt. The problem is
    that the interrupt disabled latency tracer will take this call
    to idle as a latency.

    This patch disables the latency tracing when going into idle.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:49 +09:00
Paul Mundt 75fd24c107 sh: Tidy up backtrace formatting with kallsyms disabled.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:49 +09:00
Paul Mundt 9cfc9a9b6f sh: Add a simple code dumper for SUPERH32 show_regs().
This implements a simple show_code() that is in turn plugged in to
show_regs() to provide minimal code dumping at the end of the trace.

Built on top of a simple instruction disassembler derived from the
binutils opcode table.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:49 +09:00
Paul Mundt edfd6da040 sh: Add a few more branch types to the branch emulator.
This plugs in some extra encodings for matching more bsr/bsrf/jsr
branches.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:49 +09:00
Paul Mundt 624c6a6750 sh: More movmem alias symbol exports for older compilers.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:49 +09:00
Paul Mundt 9ef100287a sh: Add exports for __udivsi3/__sdivsi3 and the _i4 versions.
Needed by older compilers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:54 +09:00
Paul Mundt 1aad54a99b sh: Migrate necessary libgcc bits in to arch/sh/lib for SUPERH32.
This moves in the necessary libgcc bits for SUPERH32 and drops the
libgcc linking for the regular targets. This in turn allows us to rip
out quite a few hacks both in sh_ksyms_32 and arch/sh/Makefile.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:53 +09:00
Paul Mundt e9bf51e5cc sh: __udivdi3 -> do_div() in softfloat lib.
Inhibit the generation of __udivdi3 for the softfloat lib, use do_div()
outright.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:53 +09:00
Paul Mundt 00e825c6b9 sh: Fix clock framework compiler warnings.
CC      arch/sh/kernel/cpu/clock.o
  arch/sh/kernel/cpu/clock.c: In function 'clk_disable':
  arch/sh/kernel/cpu/clock.c:156: warning: 'return' with a value, in function returning void

Introduced by ("sh: enable and disable clocks recursively").

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:53 +09:00
Matt Fleming fad57feba7 sh: dynamic ftrace support.
First cut at dynamic ftrace support.

Signed-off-by: Matt Fleming <mjf@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:52 +09:00
Magnus Damm ef6aff6884 sh: remove old sh_mobile mstpc clocks
Remove the old sh_mobile mstpcr clocks.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:52 +09:00
Magnus Damm 765786e0ae sh: sh_mobile usb clock framework support
Add clock framework support to the usb/r8a66597 driver and
adjust the cpu specific code accordingly.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:51 +09:00
Magnus Damm af5be79a7f sh: sh_mobile usbf clock framework support
Add clock framework support to the usbf/m66592 driver and
adjust the cpu specific code accordingly.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:51 +09:00
Magnus Damm a5616bd0f1 sh: sh_mobile i2c clock framework support
Add clock framework support to the sh_mobile i2c driver and
adjust the processor specific code accordingly.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:51 +09:00
Magnus Damm f2eb0109fb sh: sh_mobile mstpcr clocks for sh7366
Add sh7366 mstpcr bits and information about their parent clocks.
The datasheet is pretty clear about the clocks on this device.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:51 +09:00
Magnus Damm 6e88d030a1 sh: sh_mobile mstpcr clocks for sh7343
Add sh7343 mstpcr bits and information about their parent clocks.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm f14c017d6b sh: sh_mobile mstpcr clocks for sh7723
Add sh7723 mstpcr bits and information about their parent clocks.
The datasheet is pretty clear about the clocks on this device.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm ecf399bdaf sh: sh_mobile mstpcr clocks for sh7722
Add sh7722 mstpcr bits and information about their parent clocks.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm 7c7e02a28b sh: new sh_mobile mstpcr clocks base code
Add base code to handle new mstpcr clocks. Make sure clock rates propagate.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm 1dc7b776d9 sh: use arch_flags for sh_mobile mstpcr clock bits
Use arch_flags to keep track of register and flag number.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm d902d04f54 sh: sh_mobile clock divider index fix
Use divider index value instead of divider value.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm d12cfac146 sh: enable and disable clocks recursively
Recurse and make sure parent clocks get enabled/disabled.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Paul Mundt 4a4a9be3eb sh: Move arch_get_unmapped_area() in to arch/sh/mm/mmap.c.
Now that arch/sh/mm/mmap.c exists, move arch_get_unmapped_area() there.
Follows the ARM change.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:49 +09:00
Rusty Russell 320ab2b0b1 cpumask: convert struct clock_event_device to cpumask pointers.
Impact: change calling convention of existing clock_event APIs

struct clock_event_timer's cpumask field gets changed to take pointer,
as does the ->broadcast function.

Another single-patch change.  For safety, we BUG_ON() in
clockevents_register_device() if it's not set.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@elte.hu>
2008-12-13 21:20:26 +10:30
Rusty Russell 98a79d6a50 cpumask: centralize cpu_online_map and cpu_possible_map
Impact: cleanup

Each SMP arch defines these themselves.  Move them to a central
location.

Twists:
1) Some archs (m32, parisc, s390) set possible_map to all 1, so we add a
   CONFIG_INIT_ALL_POSSIBLE for this rather than break them.

2) mips and sparc32 '#define cpu_possible_map phys_cpu_present_map'.
   Those archs simply have phys_cpu_present_map replaced everywhere.

3) Alpha defined cpu_possible_map to cpu_present_map; this is tricky
   so I just manipulate them both in sync.

4) IA64, cris and m32r have gratuitous 'extern cpumask_t cpu_possible_map'
   declarations.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
Tested-by: Tony Luck <tony.luck@intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Mike Travis <travis@sgi.com>
Cc: ink@jurassic.park.msu.ru
Cc: rmk@arm.linux.org.uk
Cc: starvik@axis.com
Cc: tony.luck@intel.com
Cc: takata@linux-m32r.org
Cc: ralf@linux-mips.org
Cc: grundler@parisc-linux.org
Cc: paulus@samba.org
Cc: schwidefsky@de.ibm.com
Cc: lethal@linux-sh.org
Cc: wli@holomorphy.com
Cc: davem@davemloft.net
Cc: jdike@addtoit.com
Cc: mingo@redhat.com
2008-12-13 21:19:41 +10:30
Paul Mundt 272966c070 serial: sh-sci: Reorder the SCxTDR write after the TDxE clear.
Under qemu there is a race between the TDxE read-and-clear and the SCxTDR
write. While on hardware it can be gauranteed that the read-and-clear
will happen prior to the character being written out, no such assumption
can be made under emulation. As this path happens with IRQs off and the
hardware itself doesn't care about the ordering, move the SCxTDR write
until after the read-and-clear.

Signed-off-by: Vladimir Prus <vladimir@codesourcery.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13 17:46:06 +09:00