Commit Graph

1507 Commits

Author SHA1 Message Date
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
Ingo Molnar 1f3f424a6b Merge branch 'linus' into cpus4096 2008-12-17 13:07:48 +01:00
Paul Mundt f9d62c0096 sh: Disable GENERIC_HARDIRQS_NO__DO_IRQ for unconverted platforms.
Presently limited to Cayman, Dreamcast, Microdev, and SystemH 7751.
Re-enable it for everyone once these have been fixed up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-16 16:42:53 +09:00
Rusty Russell 968ea6d80e Merge ../linux-2.6-x86
Conflicts:

	arch/x86/kernel/io_apic.c
	kernel/sched.c
	kernel/sched_stats.h
2008-12-13 21:55:51 +10:30
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
Ingo Molnar 1c39194878 sched: convert struct root_domain to cpumask_var_t, fix
Mathieu Desnoyers reported this build failure on powerpc:

 kernel/sched.c: In function 'sd_init_NODE':
 kernel/sched.c:7319: error: non-static initialization of a flexible array member
 kernel/sched.c:7319: error: (near initialization for '(anonymous)')

this happens because .span changed to cpumask_var_t, hence
the static CPU_MASK_NONE initializers in the SD_*_INIT
templates are not type-correct anymore.

Remove them, as they default to empty anyway.

Also remove them from IA64, MIPS and SH.

Reported-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-26 14:14:07 +01:00
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
Stuart MENEFY 5d52013cbb sh: __copy_user function can corrupt the stack in case of exception
The __copy_user function can corrupt the stack in the case of a
non-trivial length of data, and either of the first two move instructions
cause an exception. This is because the fixup for these two instructions
is mapped to the no_pop case, but these instructions execute after the
stack is pushed.

This change creates an explicit NO_POP exception mapping macro, and uses
it for the two instructions executed in the trivial case where no stack
pushes occur.

More information at ST Linux bugzilla:

	https://bugzilla.stlinux.com/show_bug.cgi?id=4824

Signed-off-by: Dylan Reid <dylan_reid@bose.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13 17:40:30 +09:00
Francesco VIRLINZI 2cd0ebc83d sh: Fixed the TMU0 reload value on resume
This patch fixes the TMU0 interrupt frequency on suspend/resume.
During the resume the kernel reprograms the TMU0.ClockEvent mode
but if the mode is periodic than the TMU0.TCOR is updated with
a random wrong value without taking care latest valid saved value.

There was no problem with No_HZ system where TMU0.TCOR isn't used.

Signed-off-by: Francesco M. Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13 17:40:30 +09:00
Paul Mundt 10840f034e sh: Don't factor in PAGE_OFFSET for valid_phys_addr_range() check.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13 15:38:02 +09:00
Magnus Damm bfbedf787c sh: early printk port type fix
Add PORT_SCIF to unbreak the early printk code.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13 15:37:07 +09:00
Paul Mundt 185aed7557 sh: Provide a sane valid_phys_addr_range() to prevent TLB reset with PMB.
With the PMB enabled, only P1SEG and up are covered by the PMB mappings,
meaning that situations where out-of-bounds physical addresses are read
from will lead to TLB reset after the PMB miss, allowing for use cases
like dd if=/dev/mem to reset the TLB.

Fix this up to make sure the reference is between __MEMORY_START (phys)
and __pa(high_memory). This is coherent across all variants of sh/sh64
with and without MMU, though the PMB bug itself is only applicable to
SH-4A parts.

Reported-by: Hideo Saito <saito@densan.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-12 12:53:48 +09:00
Yoshihiro Shimoda 51ee3d92bf fix sci type for SH7723
This patch changes sci type of SH7723 from PORT_SCI to PORT_SCIFA.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-12 12:29:56 +09:00
Paul Mundt acca4f4d9b sh: Handle fixmap TLB eviction more coherently.
There was a race in the kmap_coherent() implementation. While we
guarded against preemption, there was nothing preventing eviction of
the pre-faulted fixmap entry from the UTLB. Under certain workloads
this would result in the fixmap entries used for cache colouring being
evicted from the UTLB in the midst of a copy_page().

In addition to pre-faulting, we also make sure to preserve the PTEs
in the kernel page table and introduce a cached PTE for kmap_coherent()
usage. This follows a similar change on MIPS ("[MIPS] Fix aliasing bug
in copy_to_user_page / copy_from_user_page").

Reported-by: Hideo Saito <saito@densan.co.jp>
Reported-by: CHIKAMA Masaki <masaki.chikama@gmail.com>
Tested-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-10 20:00:45 +09:00
Yoshihiro Shimoda 216813a8bb sh: fix sh2a cache entry_mask
fix sh2a cache entry_mask in __flush_{purge,invalidate}_region.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-31 16:29:20 +09:00
Kuninori Morimoto 464f763d5a sh: Enable NFS root in Migo-R defconfig.
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-31 16:22:31 +09:00
Paul Mundt 694f94f263 sh: FTRACE renamed to FUNCTION_TRACER.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-31 16:20:36 +09:00
Kuninori Morimoto 47c2968c84 Add support usb setting on sh 7366
This patch add usb setting for sh 7366

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-31 16:03:30 +09:00
Harvey Harrison 1406266732 sh: use the new byteorder headers.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-31 16:01:22 +09:00
Paul Mundt ddb72b0241 sh: SHmedia ISA tuning fixups.
SH-5 doesn't support any elaborate ISA inheritance schemes (-dsp, -up,
etc.), so only bother with that if we are building an sh32 kernel.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-31 15:58:53 +09:00
Paul Mundt 3eeebf17f3 sh: Kill off long-dead HD64465 cchip support.
This code has been dead for many years. The last update it received
was in 2003 in order to update it for the driver model changes, though
it had already been in disarray and unused before that point. The only
boards that ever used this chip have not had users in many years either,
so it is finally safe to just kill it off and move on with life.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28 20:07:44 +09:00
Paul Mundt 86d758ef2c Merge branches 'sh/serial-rework' and 'sh/oprofile' 2008-10-28 19:44:15 +09:00
Paul Mundt b2d86a3fd9 sh: Simplify and lock down the ISA tuning.
The ISA tuning as it is today can not cope with all of the different
variations that are possible, so all we can do is a best attempt based on
the CPU family. The DSP and FPU generation are already at odds with each
other, and the nommu tuning we weren't handling at all.  Additionally,
for platforms that never had an FPU, the -nofpu variant never existed,
meaning that we would lose out on family granular tuning completely in
certain cases.

With tat out of the way, we were also using -up versions, allowing for
later instructions that branched off of a particular subset of the ISA,
but are not actually reflected on the hardware being targetted. This
leads to some confusion, and the possibility of bogus instructions on
older parts. Kill that off and lock it down to the family being built
for specifically.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28 19:37:05 +09:00
Paul Mundt 1a30603233 sh: sh7785lcr: Select uImage as default image target.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28 18:50:00 +09:00
Paul Mundt b4d36a254f sh: Add on-chip RTC support for SH7722.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28 18:40:19 +09:00
Kuninori Morimoto e00afb6423 sh: Provide a sample defconfig for the UL2 (SH7366) board.
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28 17:36:11 +09:00
Paul Mundt 8a2fd5f3ab sh: Fix FPU tuning on toolchains with mismatched multilib targets.
Presently there is very little standing in the way of using an SH-4
toolchain for building an SH-2 kernel, and vice versa. Binutils itself
has no limitations whatsoever and supports explicit ISA hinting, which
we already use with varying degrees of success today.

This leaves GCC as the odd one out, due to a rather dubious policy
decision by the GCC folks to not include all of the CPU family variants
in the default list of multilib targets in GCC4. Despite best efforts to
the contrary, libgcc itself already contains awareness of the various CPU
types and remains generally usable, allowing it to safely be referenced
even on a mismatched target (and indeed, explicit ISA tuning by binutils
keeps us honest in terms of ensuring that we do not link incompatible
objects in).

In order to support this, a couple of changes had to be made. Firstly,
the introduction of MAYBE_DECLARE_EXPORT(), which provides a __weak
extern reference for libgcc resident routines when finer-grained
-m<cpu-family> based tuning is not supported by the toolchain. This
fixes up the __sdivsi3_i4i and __udivsi3_i4i references when dealing
with SH-2 kernels linked with an SH-4 libgcc. Secondly, in case where we
are unable to find a suitable match for CPU family tuning but still
have a toolchain that defaults to FP instruction generation, a suitable
nofpu target must be selected. This is accomplished by selecting the
first nofpu multilib target supported by the toolchain, which is
also necessary for selecting the proper libgcc to link against.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28 17:19:35 +09:00
Paul Mundt 2a88b6e815 sh: oprofile: Fix up the SH7750 performance counter name.
Rather than varying this on a subtype level, we use the counter type as a
generic identifier. This simplifies logic in the userspace tools where no
fundamental difference exists across the various subtypes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-27 09:51:45 +09:00
Paul Mundt e4b41dbd60 sh: asm/gpio.h needs linux/kernel.h for might_sleep()/WARN_ON().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-23 12:37:20 +09:00
Paul Mundt 61dc6eaeef sh: mach-highlander: Handle SCIF pinmuxing on R7785RP.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-23 12:35:43 +09:00
Magnus Damm 0835f127e5 sh: sh7785 pinmux support
This patch implements pinmux tables for the sh7785 processor.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-23 11:59:37 +09:00
Paul Mundt 4bb273e955 sh: update defconfigs.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-22 20:05:11 +09:00
Paul Mundt 6f8f6daa6d sh: Kill off unused p1fc divisors from SH7763 clk fwk.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-22 19:38:30 +09:00
Magnus Damm 42eed42bac sh: improve pinmux support for single direction pins
This patch improves the support for gpio pins that are hard wired
to either input or output and lack control register association.
A special force enum id is used to allow use without control
register but still mark the gpio pin as input or output.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-22 18:34:16 +09:00
Magnus Damm 22ee3ba611 sh: use 10MHz VIO_CLK for ov772x on Migo-R
Use a slower VIO_CKO clock frequency for the ov772x on Migo-R.
This improves the camera picture quality on Panel Board V2.1.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-22 18:34:09 +09:00
Magnus Damm ed0b2ef55a sh: Update gpio_set_value() pin value handling
This patch updates the pinmux code to use the boolean value for
the function gpio_set_value(). Without this patch values other
than 0 and 1 will result in incorrect GPIO settings.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 21:41:23 +09:00
Magnus Damm 3b495513a2 sh: update ov772x byte order on Migo-R
Update the ov772x byte sequence to enable byte swap. This to reflect
the recent CEU driver change to follow incoming byte order.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 21:41:23 +09:00
Paul Mundt 2bba37e64a sh: Export cache flush routines needed by sh_eth on SH7619.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 19:45:08 +09:00
Paul Mundt c9306f0efb sh: Wire up oops reporting in the die notifier chain.
Commit 3f5a54e371 ("ftrace: dump out ftrace
buffers to console on panic") added an ftrace buffer dumper that hooks
in to the die notifier chain and dumps out data in the oops path.

Unfortunately SH supported ftrace but didn't support DIE_OOPS, so add
that in and get it building again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 18:33:36 +09:00
Paul Mundt f7141d5884 sh: ap325rxa: Kill off unused port definitions.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 18:13:15 +09:00
Paul Mundt 7dd0558d70 sh: Hook up PB0->PB7 input-only pins in SH7203 PFC.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 18:09:43 +09:00
Paul Mundt dd0e20e588 sh: ap325rxa: Move off of hardcoded pinmux for flctl initialization.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 18:08:10 +09:00
Yoshihiro Shimoda 908978acbe sh: add support FLCTL for ap325rxa board
This patch adds platform_device for sh_flctl driver, NAND Flash
simple partition, and GPIO setting.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 18:03:33 +09:00
Paul Mundt 5501093784 sh: gpio: Stub in dummy GPIO<->IRQ mapping routines.
IRQ modes are not presently supported, so stub in dummy definitions
for now (taken from linux/gpio.h).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 17:48:40 +09:00
Paul Mundt bbc97411d1 sh: rsk7203: leds-gpio support for RSK+ LEDs.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 14:27:51 +09:00
Paul Mundt 10bfc6e190 sh: gpio: Include asm-generic/gpio.h for non-gpiolib stubs.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 14:27:05 +09:00
Guennadi Liakhovetski 58419abd50 sh: fix soc-camera compile breakage on Migo-R.
Fix Migo-R compile breakage caused by incomplete merge.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 12:51:51 +09:00
Paul Mundt b56050ae5e sh: arch/sh/kernel/smp.c needs linux/cpu.h for notify_cpu_starting().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 12:51:51 +09:00
Andrew Morton 5e451d9c9d sh: Kill off duplicate remove_memory() definition.
Use the generic remove_memory() provided by mm/memory_hotplug.c instead.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 12:51:51 +09:00
Paul Mundt a51413a65f sh: Fix up the SH7203 build.
The sh7203.h include paths were missed in the previous update, so switch
the include path to cpu/ as with the rest.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 12:51:51 +09:00
Linus Torvalds ed402af3c2 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: (112 commits)
  sh: Move SH-4 CPU headers down one more level.
  sh: Only build in gpio.o when CONFIG_GENERIC_GPIO is selected.
  sh: Migrate common board headers to mach-common/.
  sh: Move the CPU definition headers from asm/ to cpu/.
  serial: sh-sci: Add support SCIF of SH7723
  video: add sh_mobile_lcdc platform flags
  video: remove unused sh_mobile_lcdc platform data
  sh: remove consistent alloc cruft
  sh: add dynamic crash base address support
  sh: reduce Migo-R smc91x overruns
  sh: Fix up some merge damage.
  Fix debugfs_create_file's error checking method for arch/sh/mm/
  Fix debugfs_create_dir's error checking method for arch/sh/kernel/
  sh: ap325rxa: Add support RTC RX-8564LC in AP325RXA board
  sh: Use sh7720 GPIO on magicpanelr2 board
  sh: Add sh7720 pinmux code
  sh: Use sh7203 GPIO on rsk7203 board
  sh: Add sh7203 pinmux code
  sh: Use sh7723 GPIO on AP325RXA board
  sh: Add sh7723 pinmux code
  ...
2008-10-20 09:13:34 -07:00
Vivek Goyal 57cac4d188 kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE
o elfcorehdr_addr is used by not only the code under CONFIG_PROC_VMCORE
  but also by the code which is not inside CONFIG_PROC_VMCORE.  For
  example, is_kdump_kernel() is used by powerpc code to determine if
  kernel is booting after a panic then use previous kernel's TCE table.
  So even if CONFIG_PROC_VMCORE is not set in second kernel, one should be
  able to correctly determine that we are booting after a panic and setup
  calgary iommu accordingly.

o So remove the assumption that elfcorehdr_addr is under
  CONFIG_PROC_VMCORE.

o Move definition of elfcorehdr_addr to arch dependent crash files.
  (Unfortunately crash dump does not have an arch independent file
  otherwise that would have been the best place).

o kexec.c is not the right place as one can Have CRASH_DUMP enabled in
  second kernel without KEXEC being enabled.

o I don't see sh setup code parsing the command line for
  elfcorehdr_addr.  I am wondering how does vmcore interface work on sh.
  Anyway, I am atleast defining elfcoredhr_addr so that compilation is not
  broken on sh.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Simon Horman <horms@verge.net.au>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:39 -07:00
Matt Helsley dc52ddc0e6 container freezer: implement freezer cgroup subsystem
This patch implements a new freezer subsystem in the control groups
framework.  It provides a way to stop and resume execution of all tasks in
a cgroup by writing in the cgroup filesystem.

The freezer subsystem in the container filesystem defines a file named
freezer.state.  Writing "FROZEN" to the state file will freeze all tasks
in the cgroup.  Subsequently writing "RUNNING" will unfreeze the tasks in
the cgroup.  Reading will return the current state.

* Examples of usage :

   # mkdir /containers/freezer
   # mount -t cgroup -ofreezer freezer  /containers
   # mkdir /containers/0
   # echo $some_pid > /containers/0/tasks

to get status of the freezer subsystem :

   # cat /containers/0/freezer.state
   RUNNING

to freeze all tasks in the container :

   # echo FROZEN > /containers/0/freezer.state
   # cat /containers/0/freezer.state
   FREEZING
   # cat /containers/0/freezer.state
   FROZEN

to unfreeze all tasks in the container :

   # echo RUNNING > /containers/0/freezer.state
   # cat /containers/0/freezer.state
   RUNNING

This is the basic mechanism which should do the right thing for user space
task in a simple scenario.

It's important to note that freezing can be incomplete.  In that case we
return EBUSY.  This means that some tasks in the cgroup are busy doing
something that prevents us from completely freezing the cgroup at this
time.  After EBUSY, the cgroup will remain partially frozen -- reflected
by freezer.state reporting "FREEZING" when read.  The state will remain
"FREEZING" until one of these things happens:

	1) Userspace cancels the freezing operation by writing "RUNNING" to
		the freezer.state file
	2) Userspace retries the freezing operation by writing "FROZEN" to
		the freezer.state file (writing "FREEZING" is not legal
		and returns EIO)
	3) The tasks that blocked the cgroup from entering the "FROZEN"
		state disappear from the cgroup's set of tasks.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: export thaw_process]
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Acked-by: Serge E. Hallyn <serue@us.ibm.com>
Tested-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:34 -07:00
Paul Mundt 40e24c403f sh: Move SH-4 CPU headers down one more level.
These accidentally got placed in to cpu-sh4 instead of cpu-sh4/cpu, push
them down one more level.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 14:30:17 +09:00
Paul Mundt ebf9c118df sh: Only build in gpio.o when CONFIG_GENERIC_GPIO is selected.
The pinmux management is tied in to this code, while it is presently only
used by platforms that select GENERIC_GPIO. The asm/gpio.h definitions
are not referenced when GENERIC_GPIO is disabled, resulting in a build
failure for all of the platforms that don't select it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 13:04:06 +09:00
Paul Mundt 7639a4541f sh: Migrate common board headers to mach-common/.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 13:02:48 +09:00
Paul Mundt f727565013 sh: Move the CPU definition headers from asm/ to cpu/.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 12:04:53 +09:00
Magnus Damm 7713718751 sh: remove consistent alloc cruft
Remove left overs from the generic declared coherent rework.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 11:38:44 +09:00
Magnus Damm 4aeaa22343 sh: add dynamic crash base address support
Add support for dynamic crash kernel base address.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 11:38:40 +09:00
Magnus Damm a30c89ad41 sh: reduce Migo-R smc91x overruns
Improve Migo-R ethernet performance by reducing smc91x overruns.
This is done by enabling SMC91X_NOWAIT and optimizing CS4 setup.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 11:38:35 +09:00
Paul Mundt 9a19eb2a66 sh: Fix up some merge damage.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 11:37:58 +09:00
Paul Mundt 4cb40f795a Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	Documentation/kernel-parameters.txt
	arch/sh/include/asm/elf.h
2008-10-20 11:17:52 +09:00
Paul Mundt 79ed2a9216 Merge branch 'sh/gpiolib' 2008-10-20 10:40:32 +09:00
Zhaolei 25627c7fd7 Fix debugfs_create_file's error checking method for arch/sh/mm/
debugfs_create_file() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:40:21 +09:00
Zhaolei 9986b311ef Fix debugfs_create_dir's error checking method for arch/sh/kernel/
debugfs_create_dir() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:40:15 +09:00
Nobuhiro Iwamatsu a3e0270663 sh: ap325rxa: Add support RTC RX-8564LC in AP325RXA board
Renesas AP325RXA board has Epson RX-8564LC of RTC.
This patch supports RTC of this board.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:38:36 +09:00
Magnus Damm 843284d0e4 sh: Use sh7720 GPIO on magicpanelr2 board
This patch hooks up the magicpanelr2 board with the sh7720 pinmux code.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:29 +09:00
Magnus Damm c9c3c1b74d sh: Add sh7720 pinmux code
This patch adds pinmux and gpio support for the sh7720 processor.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:25 +09:00
Magnus Damm 7a5c679b52 sh: Use sh7203 GPIO on rsk7203 board
Make the rsk7203 board use the newly added sh7203 pinmux code.
Only a single LED plus the serial console pins for now.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:22 +09:00
Magnus Damm 41e4a9a5e2 sh: Add sh7203 pinmux code
This patch adds pinmux and gpio support for the sh7203 processor.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:18 +09:00
Magnus Damm 16587c453b sh: Use sh7723 GPIO on AP325RXA board
This patch enables the GPIO code on AP325RXA and converts the code from
register based pinmux configuration to GPIO based pin by pin setup.
While at it 2 LEDs and one switch are added and exported to user space.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:15 +09:00
Magnus Damm 0436ec15ae sh: Add sh7723 pinmux code
This patch adds pinmux and gpio support for the sh7723 processor.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:12 +09:00
Magnus Damm 91b6f3c525 sh: Use sh7722 GPIO on Migo-R board
This patch enables the GPIO code on Migo-R and converts the code from
register based pinmux configuration to GPIO based pin by pin setup.
Fix whitespace damage while at it and add 2 LEDs and export them to
user space.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:08 +09:00
Magnus Damm 8d7b5b0af7 sh: Add sh7722 pinmux code
This patch adds pinmux and gpio support for the sh7722 processor.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:05 +09:00
Magnus Damm 2967dab1ae sh: GPIO and pinmux base code
This patch adds gpio code together with the pinmux table parser.
In the future we should optimize this and switch back to gpiolib.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:33:50 +09:00
Martin Schwidefsky 0b59268285 [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY
The SET_PERSONALITY macro is always called with a second argument of 0.
Remove the ibcs argument and the various tests to set the PER_SVR4
personality.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-10-16 15:40:05 +02:00
Paul Mundt 14866543ad sh: More I/O routine overhauling.
This tidies up a lot of the PIO/MMIO split. No in-tree platforms were
making use of the MMIO overloading through the machvec (nor have any of
them been in some time), so we just kill all of that off. The ISA I/O
routine wrapping remains unaffected, which remains the only special
casing outside of the iomap API that boards need to think about.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-04 05:25:52 +09:00
Paul Mundt 225c9a8d1d video: sh_mobile_lcdcfb: Support HAVE_CLK=n configurations.
This provides a workaround for users of sh_mobile_lcdcfb that don't
define HAVE_CLK and have otherwise sane clock initialization.

At the same time, move the sh_mobile_lcdc.h header to include/video/.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-01 16:24:32 +09:00
Paul Mundt bbfbd8b151 sh: Move the shared INTC code out to drivers/sh/
The INTC code will be re-used across different architectures, so move
this out to drivers/sh/ and include/linux/sh_intc.h respectively.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-01 16:13:54 +09:00
Paul Mundt 62429e0364 sh: Use __raw_xxx() I/O accessors for INTC and IPR.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-01 15:19:10 +09:00
Paul Mundt 64c9627c26 sh: Fix up the __raw_read/writeX() definitions.
These were doing largely bogus things and using the wrong typing for
the address. Bring these in line with the ARM definitions.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-01 15:12:27 +09:00
Paul Mundt bdeb3be7cc sh: Use clk fwk for preset lpj on sh64, too.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29 20:14:44 +09:00
Paul Mundt 4d01cdafba sh: SH-5 clk fwk support.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29 20:09:17 +09:00
Paul Mundt 50b72e600b sh: sh_ksyms_64 needs __strncpy_from_user() definition.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29 19:45:16 +09:00
Paul Mundt 091db04559 sh: Fix up signal_64 cast warnings.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29 19:44:40 +09:00
Paul Mundt 88856d67cf sh: Fix up uaccess_64 put/get_user() cast warnings.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29 19:43:44 +09:00
Paul Mundt 1bec157a1f sh: Force pending restarted system calls to return -EINTR.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-24 14:37:35 +09:00
Nobuhiro Iwamatsu aa88f169d6 sh: ap325rxa: create CPLD data area in mtd
AP320 and AP325RXA has CPLD data in NOR Flash.
If this area erased, this board can not boot.
This patch create CPLD data area and set writeable mask bit.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-24 13:57:42 +09:00
Paul Mundt e7ab3cd251 sh: Add FPU registers to regset interface.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 19:04:55 +09:00
Paul Mundt 4b4cf7595a sh: Add missing asm/ftrace.h.
This was missed with the ftrace support commit.. check it in now.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 17:17:53 +09:00
Paul Mundt 9d2b1f81dd sh: ftrace support.
This adds support for ftrace to SH. This only includes CONFIG_FTRACE,
and does not handle dynamic ftrace presently.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 16:43:45 +09:00
Paul Mundt 3d58695edb sh: Trivial trace_mark() instrumentation for core events.
This implements a few trace points across events that are deemed
interesting. This implements a number of trace points:

	- The page fault handler / TLB miss
	- IPC calls
	- Kernel thread creation

The original LTTng patch had the slow-path instrumented, which
fails to account for the vast majority of events. In general
placing this in the fast-path is not a huge performance hit, as
we don't take page faults for kernel addresses.

The other bits of interest are some of the other trap handlers, as
well as the syscall entry/exit (which is better off being handled
through the tracehook API). Most of the other trap handlers are corner
cases where alternate means of notification exist, so there is little
value in placing extra trace points in these locations.

Based on top of the points provided both by the LTTng instrumentation
patch as well as the patch shipping in the ST-Linux tree, albeit in a
stripped down form.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 13:56:39 +09:00
Paul Mundt 8f2baee280 sh: Kill off duplicate page fault notifiers in slow path.
We already have hooks in place in the __do_page_fault() fast-path,
so kill them off in the slow path.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 12:11:25 +09:00
Paul Mundt 887f1ae3bc sh: Look up the trap vector for the page fault notifier.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 12:06:43 +09:00
Paul Mundt 4c59e2942e sh: Move lookup_exception_vector() out to asm/system_32.h.
There are other places where we want to have access to the trap/exception
number, so move out the lookup_exception_vector() helper. While we're at
it, refactor it slightly to return the vector instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 12:00:23 +09:00
Luca Santini 347cd34f4b sh: edosk7760: Correct size of bootloader flash partition.
This is 256K instead of 1M.

[ Converted to use asm/sizes.h. -- PFM ]

Signed-off-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 10:32:29 +09:00
Paul Mundt d3ea00a36d sh: Add a few more definitions to asm/sizes.h.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 10:31:57 +09:00
Paul Mundt 837c946aad sh: Copy in asm/sizes.h helper from ARM.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 10:24:18 +09:00
Paul Mundt c15c5f8c2b sh: Support kernel stacks smaller than a page.
This follows the powerpc commit f6a616800e
'[POWERPC] Fix kernel stack allocation alignment'.

SH has traditionally forced the thread order to be relative to the page
size, so there were never any situations where the same bug was
triggered by slub. Regardless, the usage of > 8kB stacks for the larger
page sizes is overkill, so we switch to using slab allocations there,
as per the powerpc change.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-20 20:21:33 +09:00
Paul Mundt b817f7e020 sh: Disable 4kB stacks when using PAGE_SIZE_64KB.
This combination triggers a divide by zero in kernel/fork.c when
calculating the initial max_threads value:

	max_threads = mempages / (8 * THREAD_SIZE / PAGE_SIZE);

Simply disable 4K stacks on 64kB PAGE_SIZE to work around this,
as it's not a terribly useful combination to begin with.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-20 20:16:35 +09:00
Paul Mundt 2194478157 sh: HAVE_IOREMAP_PROT depends on MMU.
HAVE_IOREMAP_PROT enables an unconditional reference to
generic_access_phys(), which remains undefined in the nommu case.
As there's no point in supporting this there anyways, simply fix
up the dependency.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:26:44 +09:00
Paul Mundt b406efefd5 sh: Fix up headers_check regression.
linux/mmzone.h isn't exported, kill it off from asm/setup.h and simply
deal with it in the places that have a dependency instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:24:59 +09:00
Paul Mundt 81b669952e sh: Consolidate struct sh_cpuinfo definitions across _32/_64 split.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:24:02 +09:00
Paul Mundt 8a80a5e9e8 sh: Fix up signal_64 conflicting handle_signal() definition.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:14:36 +09:00
Paul Mundt b85641bdde sh: Make memory hot-add and hot-remove depend on MMU.
Cleans up link numerous build issues with page migration and so on when
enabled on nommu builds.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:13:27 +09:00
Paul Mundt b3d765f5df sh: Fix up fpu emu build.
The addition of the kprobes code pushed down a variable declaration,
clean it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:12:11 +09:00
Paul Mundt 5a89f1adbc sh: latencytop support.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-13 01:44:03 +09:00
Paul Mundt 0e660d2d43 sh: Tidy up ELF core dumps.
These have been using overrides for ELF_CORE_COPY_TASK_REGS and
ELF_CORE_COPY_FPREGS while the generic versions can be used instead.
Presently the pt_regs are also duplicated across elf_core_copy_regs()
and elf_core_copy_task_regs(), this switches to simply copying out
through elf_core_copy_regs() instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 23:27:46 +09:00
Paul Mundt 72461997c3 sh: Check SR.DSP bit for DSP regset validity.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:56:35 +09:00
Paul Mundt f9540ececa sh: Add missing task_user_regset_view() definition.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:42:43 +09:00
Paul Mundt 5dadb34394 sh: Add DSP registers to regset interface.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:42:10 +09:00
Paul Mundt 6bff1592d8 sh: Fix up NUMA build error with se7722_defconfig.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:41:30 +09:00
Paul Mundt 3231739d97 sh: Enable HAVE_ARCH_TRACEHOOK.
Now that the rest of the support requirements are out of the way, finally
enable support for tracehook.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:13:36 +09:00
Paul Mundt fb4f87a2f0 sh: Provide the asm/syscall.h interface, needed by tracehook.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:13:13 +09:00
Paul Mundt 9996b42ac0 sh: provide user_stack_pointer(), needed for tracehook support.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:11:36 +09:00
Paul Mundt f8b890ab4c sh: Flag T-bit for syscall restart.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:08:20 +09:00
Paul Mundt cb700aa4f1 sh: ioremap_prot support.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 20:41:05 +09:00
Paul Mundt 934135c19d sh: ptrace: Introduce user_regset interface for gp regs.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 19:52:36 +09:00
Paul Mundt 0955874846 sh: Provide a fixed UTS_MACHINE definition for sh64.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 18:58:28 +09:00
Luca Santini 1b582d19ce sh: update edosk7760 defconfig for physmap-flash.
Signed-off-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 18:08:01 +09:00
Luca Santini 4018ffcfdf sh: edosk7760 physmap-flash support.
Signed-off-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 18:07:16 +09:00
roel kluin b21a910435 sh: intc_prio_data() test before subtraction on unsigned
bit is unsigned, so test before subtraction

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-10 12:01:46 +09:00
Paul Mundt 6eb2139b3d sh: kprobes: kretprobe_trampoline needs to be global.
Needed by CONFIG_TRACING.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-09 08:13:28 +09:00
Paul Mundt 61098a0866 sh: Add R2D+ defconfig for qemu system emulator.
This adds a defconfig for the R2D+ target in the qemu system emulator.
Eventually it will be possible to simply use the r2d+ defconfig as it is.

Provided by Shin-ichiro KAWASAKI.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-09 06:15:47 +09:00
Manfred Spraul e545a6140b kernel/cpu.c: create a CPU_STARTING cpu_chain notifier
Right now, there is no notifier that is called on a new cpu, before the new
cpu begins processing interrupts/softirqs.
Various kernel function would need that notification, e.g. kvm works around
by calling smp_call_function_single(), rcu polls cpu_online_map.

The patch adds a CPU_STARTING notification. It also adds a helper function
that sends the message to all cpu_chain handlers.

Tested on x86-64.
All other archs are untested. Especially on sparc, I'm not sure if I got
it right.

Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-08 19:25:24 +02:00
Paul Mundt cf204fa797 sh: Derive calibrate_delay lpj from clk fwk.
All CPUs must have a sensible cpu_clk definition these days, which we can
safely use for deriving the preset loops_per_jiffy. The only odd one out
is SH-5, which hasn't been hammered in to the framework yet.

Based on the ST patch.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Carl Shaw <carl.shaw@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 20:47:42 +09:00
Paul Mundt 4eb5845d6c sh: kprobes: __kprobes annotations and formatting cleanups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 18:22:47 +09:00
Paul Mundt 734db3770d sh: kprobes: Fix up race against probe point removal.
Handle a corner case where another CPU or debugger removes the probe
point from underneath us.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 18:15:55 +09:00
Paul Mundt 247bc6d2ae sh: kprobes: Fix up a preemption imbalance on jprobe return.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 18:14:50 +09:00
Paul Mundt ee386de774 sh: kprobes: Default to NOTIFY_DONE for unhandled debug traps.
Presently this is doing a force_sig() SIGTRAP, which is already taken
care of in the generic code if no one asserts NOTIFY_STOP. Switch the
default return to NOTIFY_DONE in the case of unhandled traps, so that
the same trap may pass through to other users on the same die chain.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 18:12:33 +09:00
Paul Mundt 174b5c9923 sh: kprobes: Use trapa #0x3a for breakpoint trap.
Not all parts support trapa #0xff, so use something within the debug trap
range that's accessible on all parts.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 18:10:10 +09:00
Paul Mundt 037c10a612 sh: kprobes: Hook up kprobe_fault_handler() in the page fault path.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 12:22:47 +09:00
Paul Mundt fc63562ac2 sh: Disable seccomp support by default.
This was initially checked in with a stupid default of y, while most
everyone is going to want to have this disabled anyways.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 12:10:35 +09:00
Paul Mundt e7cb016e5a sh: Mark kretprobe_trampoline_holder static and __used.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 12:02:17 +09:00
Paul Mundt 4ad06dd6f1 sh: Add EDOSK7760 mach type.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 12:01:55 +09:00
Luca Santini 3db9170880 sh: Add Renesas EDOSK7760 board support.
This adds support for the Renesas (RTE) EDOSK7760 board. Currently
supported devices are:

	 - ramdisk support
	 - ethernet support
	 - nfs support
	 - ext2/ext3 support
	 - i2c support
	 - fb support (M)

Signed-off-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 12:01:15 +09:00
Luca Santini 53abf911fa sh: Enable IRLM mode for SH7760 IRQ_MODE_IRQ.
Follows the same setting as SH7750.

Signed-off-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 11:54:56 +09:00
Paul Mundt 205a3b4328 sh: uninline flush_icache_all().
This uses jump_to_uncached() which is now given the noinline attribute
due to the special section mapping. Kill off the inline attribute to
fix up compilation failure.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:06 +09:00
Paul Mundt 6907e6a601 sh: Add the rest of the boot targets to arch/sh/boot/.gitignore.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Chris Smith d39f545014 sh: Add kprobes support.
Initial support for kprobes/kretprobes for 32-bit SH platforms.

[ General cleanup and some rework for the kretprobe hash lock. -- PFM ]

Signed-off-by: Chris Smith <chris.smith@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Marek Skuczynski b6c20e4290 sh: remove unnecessary memset after alloc_bootmem_low_pages
Because alloc_bootmem functions return the allocated memory always
zeroed, an additional call of memset on allocated memory is
unnecessary.

Signed-off-by: Marek Skuczynski <M.Skuczynski@adbglobal.com>
Signed-off-by: Carl Shaw <carl.shaw@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Francesco Virlinzi 61c66387e6 sh: fix the TMU code to allow a fully running NO_HZ system
This patch fixes the TMU code to allow NO_HZ to work on sh

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Carl Shaw b6ad1e8c3f sh: Subnormal double to float conversion
This patch adds support for the SH4 to convert a subnormal double
into a float by catching the FPE and implementing the FCNVDS
instruction in software.

Signed-off-by: Carl Shaw <carl.shaw@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Stuart Menefy f040ddaf4c sh: Fix an unusual memory initialisation error.
This fixes a problems with the set up of Linux memory:

 - When reserving memory at boot time, the code previously reserved
   the bottom page of memory, and then from one page up to the end of
   the bootmap. This had the desired effect, but was strictly speaking
   wrong, as the one page was actually whatever CONFIG_ZERO_PAGE_OFFSET
   had been set to.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Chris Smith 664718a343 sh: Fix uImage load address in 32-bit mode.
Fix "make uImage" load and entry addresses in 32-bit mode.

Signed-off-by: Chris Smith <chris.smith@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Stuart Menefy 96e14e54a6 sh: vmalloc pgtable sync fix.
This fixes a problem in the code which copies the vmalloc portion of the
kernel's page table into the current user space page table. The addition
of the four level page table code breaks on folded page tables, because
the pud level is always present (although folded). This updates the code
to use the same style of updates for the pud as is used for the pgd
level.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Stuart Menefy 28d6e52cf7 sh: Fix up broken 32-bit initrd support.
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Stuart Menefy c6feb6142c sh: early cached_to_uncached initialization.
statically initialise the cached_to_uncached offset, so that we can use
it immediatly.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Paul Mundt 3159e7d62a sh: Add support for memory hot-remove.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Paul Mundt 5840263ecb sh: Don't enable clockevents broadcasting on UP SH-X3 builds.
Fixes up compile errors with missing timer definitions. It's pointless to
have this enabled anyways if CONFIG_SMP=n.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Paul Mundt fa43972fab sh: fixup many sparse errors.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Paul Mundt 7d96169cb7 sh: Display CPU information in show_regs().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:03 +09:00
Paul Mundt 53c01d2dc3 sh: Early dummy clockevent registration on boot CPU.
The dummy timer needs to be registered on the boot CPU before the
system timer clockevent is registered, or broadcasting doesn't work
as advertized.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:03 +09:00
Paul Mundt 71f0bdcab6 sh: smp: shove a cpu_relax() in the plat_start_cpu() busy loop.
Without this, certain versions of GCC will happily optimize the entire
loop out.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:03 +09:00
Paul Mundt 8c24594dea sh: generic clockevent broadcast support.
This hooks up GENERIC_CLOCKEVENTS_BROADCAST and a dummy local timer,
which we call in to from the timer IPI when no other local timer is
provided.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:03 +09:00
Paul Mundt 6f52707e68 sh: smp: Hook up a timer IPI stub.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:03 +09:00
Paul Mundt c7936b9abc sh: smp: Hook in to the generic IPI handler for SH-X3 SMP.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:03 +09:00
Paul Mundt 173a44dd1f sh: smp: Provide a generic IPI handler.
This provides a generic smp_message_recv() routine (based on the PPC
one), that IPI IRQs can wrap in to.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:02 +09:00
Paul Mundt 04ec080dca sh: Kill off unused defines from asm/smp.h.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:02 +09:00
Paul Mundt ee43a8442b sh: Provide movli.l/movco.l-based cmpxchg.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:02 +09:00
Paul Mundt 742fd1bcfb sh: Provide movli.l/movco.l-based bitops.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:02 +09:00
Paul Mundt dbce1f649e sh64: resume_kernel fix for kernel oops built with CONFIG_BKL_PREEMPT=y.
Follows the SH change.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-05 14:51:28 +09:00
Carmelo Amoroso 323b8c410a sh: resume_kernel fix for kernel oops built with CONFIG_BKL_PREEMPT=y.
This patch fixes a problem within the SH implementation of resume_kernel code,
that implements in assembly the bulk of preempt_schedule_irq function without
taking care of the extra code needed to handle the BKL preemptible.

The patch basically consists of removing this asm code and calling the common
C implementation (see kernel/sched.c) as other archs do.

Another change is the missing 'cli' macro invocation at the beginning of
the resume_kernel.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-05 14:42:16 +09:00
Yoshihiro Shimoda 3c31bf7313 sh: fix semtimedop syscall
fix the problem that cannot work semtimedop system call.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-28 14:53:22 +09:00
Magnus Damm f9bed3f204 sh: update AP325RXA defconfig
This patch updates the AP325RXA defconfig to include the recently merged
uio_pdrv_genirq driver.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-28 14:53:15 +09:00
Magnus Damm be8c129f1a sh: update Migo-R defconfig
This patch updates the MigoR defconfig to include the recently merged
uio_pdrv_genirq driver.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-28 14:53:12 +09:00
Magnus Damm c773d8af8e sh: fix platform_resource_setup_memory() section mismatch
This patch kills a section mismatch for platform_resource_setup_memory().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-28 14:53:08 +09:00
Magnus Damm 5734493bac sh: fix kexec entry point for crash kernels
The crash kernel entry point is currently checked by the kexec kernel
code and only physical addresses in the reserved memory window are
accepted. This means that we can't pass P2 or P1 addresses as entry
points in the case of crash kernels. This patch makes sure we can start
crash kernels by adding support for physical address entry points.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-28 14:53:03 +09:00
Magnus Damm 34894c7843 sh: crash kernel resource fix
The reserved crash kernel memory range is currently missing from
/proc/iomem. crashk_res is mistakenly setup after __add_active_range().
Reorder things to make sure the resource shows up in /proc/iomem.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-28 14:52:58 +09:00
Adrian Bunk e311be521f sh: fix ptrace_64.c:user_disable_single_step()
This patch fixes the following compile error caused by
commit c459dbf294
(sh: ptrace single stepping cleanups.):

<--  snip  -->

...
  CC      arch/sh/kernel/ptrace_64.o
arch/sh/kernel/ptrace_64.c: In function 'user_disable_single_step':
arch/sh/kernel/ptrace_64.c:134: error: 'regs' undeclared (first use in this function)
arch/sh/kernel/ptrace_64.c:134: error: (Each undeclared identifier is reported only once
arch/sh/kernel/ptrace_64.c:134: error: for each function it appears in.)
...
make[2]: *** [arch/sh/kernel/ptrace_64.o] Error 1

<--  snip  -->

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-25 14:08:02 +09:00
Adrian Bunk a106826452 sh64: re-add the __strnlen_user() prototype
Commit 42fd3b142d
(sh: Initial consolidation of the _32/_64 uaccess split.)
mistakenly removed the sh64 __strnlen_user() prototype,
resulting in the following compile error:

<--  snip  -->

...
  CC      init/main.o
In file included from include/linux/poll.h:13,
                 from include/linux/rtc.h:113,
                 from include/linux/efi.h:19,
                 from init/main.c:43:
arch/sh/include/asm/uaccess.h: In function 'strnlen_user':
arch/sh/include/asm/uaccess.h:213: error: implicit declaration of function '__strnlen_user'
...
make[2]: *** [init/main.o] Error 1

<--  snip  -->

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-25 14:07:58 +09:00
Linus Torvalds 1bbe44f69d Merge branch 'sh/for-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Provide a FLAT_PLAT_INIT() definition.
  binfmt_flat: Stub in a FLAT_PLAT_INIT().
  video: export sh_mobile_lcdc panel size
  sh: select memchunk size using kernel cmdline
  sh: export sh7723 VEU as VEU2H
  input: migor_ts compile and detection fix
  sh: remove MSTPCR defines from Migo-R header file
  sh: Update sh7763rdp defconfig
  sh: Add support sh7760fb to sh7763rdp board
  sh: Add support sh_eth to sh7763rdp board
  sh: Disable 64kB hugetlbpage size when using 64kB PAGE_SIZE.
  sh: Don't export __{s,u}divsi3_i4i from SH-2 libgcc.
  fix SH7705_CACHE_32KB compilation
  sh: mach-x3proto: Fix up smc91x platform data.
2008-08-20 08:46:11 -07:00
Huang Ying 163f6876f5 kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE
Rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE, because control
page is used for not only code on some platform.  For example in kexec
jump, it is used for data and stack too.

[akpm@linux-foundation.org: unbreak powerpc and arm, finish conversion]
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15 08:35:42 -07:00
Takashi YOSHII 9b9d6b2a4f sh: Provide a FLAT_PLAT_INIT() definition.
SH needs this in order to make sure that r4 has a sane value at process
entry time, which the libc expects has already been taken care of.

Fixes random crashes in flat binaries.

Signed-off-by: Takashi YOSHII <yoshii.takashi@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:55 +09:00
Magnus Damm ce9c008c8b video: export sh_mobile_lcdc panel size
Export the LCD panel size for sh_mobile_lcdc boards. This allows us
to perform dpi and screen aspect ratio calculations in user space.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:55 +09:00
Magnus Damm 0c13bf1e7c sh: select memchunk size using kernel cmdline
Allow user to pass parameters on kernel command line to override
default size for physically contiguous memory buffers. The default
VPU buffer size is too small for VGA harware encoding, but instead
of just bumping up the number we allow the user to override the
default size using the command line. Supports SuperH Mobile hardware
blocks such as VEU, VPU and CEU.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:55 +09:00
Magnus Damm 2a5323cd69 sh: export sh7723 VEU as VEU2H
Export sh7723 VEU hardware blocks as VEU2H. The sh7723 VEU2H differs
a bit from the sh7722 VEU so use different names for our UIO devices.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:55 +09:00
Magnus Damm 2fc91882c2 sh: remove MSTPCR defines from Migo-R header file
Remove MSTPCR register definitions from Migo-R header file. The clock
frame work should be used instead of direct register access.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:53 +09:00
Nobuhiro Iwamatsu a66b44b103 sh: Update sh7763rdp defconfig
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:51 +09:00
Nobuhiro Iwamatsu 674063c5a5 sh: Add support sh7760fb to sh7763rdp board
Add sh7760fb platform device to sh7763rdp's setup.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:50 +09:00
Nobuhiro Iwamatsu 0a766a6b7d sh: Add support sh_eth to sh7763rdp board
SH7763 has sh_eth device. This patch add sh_eth platform device
to this board.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:50 +09:00
Paul Mundt 68b7c24cf9 sh: Disable 64kB hugetlbpage size when using 64kB PAGE_SIZE.
Presently we oops in mm/hugetlb.c:1325, which is the order == 0 test in
hugetlb_add_hstate() called at initialization time. So, disable 64kB
huge pages when we're using a 64kB PAGE_SIZE. On most parts this will
force the default to be 1MB huge pages.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:49 +09:00
Yoshinori Sato d09d328c11 sh: Don't export __{s,u}divsi3_i4i from SH-2 libgcc.
rsk7203_defconfig fails to build with the following error:

<--  snip  -->

...
  LD      .tmp_vmlinux1
arch/sh/kernel/built-in.o:(__ksymtab+0xb8): undefined reference to `__udivsi3_i4i'
arch/sh/kernel/built-in.o:(__ksymtab+0xc8): undefined reference to `__sdivsi3_i4i'
make[1]: *** [.tmp_vmlinux1] Error 1

<--  snip  -->

That worked with 2.6.26, and these are far less undefined references
than in the cases where libgcc was missing.

[ These symbols are not defined on SH-2 versions of libgcc, so we have to
  special case the export there. - Paul ]

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:49 +09:00
Adrian Bunk 7265706c8f fix SH7705_CACHE_32KB compilation
This patches compile errors like the following caused by
commit 51f3547d61
(sh: Allow SH-3 and SH-5 to use common headers):

<--  snip  -->

...
  CC      arch/sh/mm/init.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/mm/init.c: In function 'mem_init':
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/mm/init.c:232: error: implicit declaration of function 'p3_cache_init'
make[2]: *** [arch/sh/mm/init.o] Error 1
make[1]: *** [arch/sh/mm] Error 2
...
  CC      kernel/fork.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/fork.c: In function 'dup_mmap':
/home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/fork.c:323: error: implicit declaration of function 'flush_dcache_mmap_lock'
/home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/fork.c:325: error: implicit declaration of function 'flush_dcache_mmap_unlock'
make[2]: *** [kernel/fork.o] Error 1

<--  snip  -->

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:49 +09:00
Paul Mundt e77eb36472 sh: mach-x3proto: Fix up smc91x platform data.
smc91x on x3proto needs 16-bit access and nowait, which we can now do
through the platform data.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-11 20:17:48 +09:00
Yoshinori Sato 71557a37ad [netdrvr] sh_eth: Add SH7619 support
Add support SH7619 Internal ethernet controler.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-07 02:20:57 -04:00
Adrian Bunk 0e25f71061 remove unneeded #include <linux/ide.h>'s
This patch remove unneeded #include <linux/ide.h>'s.

It also adds a required #include <linux/interrupt.h> that was previously 
implicitely pulled by ide.h

Signed-off-by: Adrian Bunk <bunk@kernel.org>
[bart: revert change to tests/lkdtm.c (spotted by Stephen Rothwell)]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-08-05 18:17:00 +02:00
Bartlomiej Zolnierkiewicz b5b9309d34 remove unnecessary <linux/hdreg.h> includes
Following files don't need <linux/hdreg.h> at all:

- arch/mips/jazz/setup.c
- arch/sh/boards/mach-systemh/irq.c
- drivers/macintosh/mediabay.c
- drivers/scsi/hptiop.c
- drivers/usb/storage/freecom.c
- arch/powerpc/include/asm/ide.h
- init/main.c

Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-08-05 18:16:58 +02:00
Paul Mundt f5663f5bde sh: enable maple_keyb in dreamcast_defconfig.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 16:52:34 +09:00
Yoshinori Sato cce2d453e4 SH2(A) cache update
Includes:
- SH2 (7619) Writeback support.
- SH2A cache handling fix.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 16:33:47 +09:00
Takashi Yoshii d8eb2fab18 add addrespace definition for sh2a.
Newfile: arch/sh/include/cpu-sh2a/cpu/addrspace.h

This file seems had be removed to use fallback (cpu-common/cpu/addrspace.h),
but, I'd like to add sh2a specific file here, because
1. the values defined there are not suitable for sh2a.
2. I don't think there is "common" definition for these values.

Values are chosen by consideration of followings...
 P1 is 0. perhaps no question.
 P2 is from hardware manual, which says no-cache area starts at 20000000.
 It means that P? space size=20000000.
 P3 is P2+size since asm/ptrace.h uses P3 as a end of P2.
 P4 is P3+size since asm/fixup.h uses P4 as a end of P3.

Signed-off-by: Takashi YOSHII <yoshii.takashi@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 14:39:19 +09:00
Paul Mundt 42ced5561a sh: Kill off ARCH_SUPPORTS_AOUT and remnants of a.out support.
SH never really supported a.out, so this was all just copied over blindly
from x86 way back when. As we don't reference linux/a.out.h anywhere in
the tree, these can now safely be killed off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 14:18:53 +09:00
Paul Mundt 5093c9a4e4 sh: define GENERIC_HARDIRQS_NO__DO_IRQ.
We haven't called in to __do_IRQ() in a long time, so it seems like a
reasonable time to switch this on by default.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 14:17:13 +09:00
Paul Mundt bdcab87b1c sh: define GENERIC_LOCKBREAK.
Needed for fixing up the __raw_spin_is_contended() reference which
results in a build error.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 14:09:15 +09:00
Paul Mundt c3b4adfa65 sh: Save NUMA node data in vmcore for crash dumps.
Presently the NUMA node data isn't saved on kexec. This implements a
simple arch_crash_save_vmcoreinfo() for saving off the relevant data.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 13:42:49 +09:00
Paul Mundt 4b59c97325 sh: module_alloc() should be using vmalloc_exec().
SH-X2 extended mode TLB allows for toggling of the exec bit, so make
sure we are using the right protection bits for module space there
also.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 13:34:29 +09:00
Paul Mundt 3108cf0612 sh: Fix up __bug_table handling in module loader.
We should be calling in to the lib/bug.c module helpers, fix that up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 13:32:04 +09:00
Paul Mundt 6a9545bd95 sh: Fix up broken kerneldoc comments.
These were completely unparseable, so fix them up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-08-04 12:51:06 +09:00