Commit graph

549 commits

Author SHA1 Message Date
Paul Mundt
b241cb0c88 sh: Support for multiple nodes.
This adds basic support for multiple nodes on SH machines.
This is primarily useful for boards with many different
memory blocks that are otherwise unused (SH7722/SH7785 URAM
and so forth).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:49 +00:00
Paul Mundt
07cbb41b53 sh: Use asm/sections.h for linker section symbols.
Kill off a bunch of externs, and use sections.h instead..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:48 +00:00
Paul Mundt
2de212ebd8 sh: Fix up max_zone_pfns[] with multiple nodes.
Currently using multiple nodes tramples the ZONE_NORMAL
max low pfn, tidy up the logic a bit to get it all working
as expected.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:48 +00:00
Paul Mundt
f11b71e657 sh: Wire up mempolicy syscalls.
Wire up mbind and get/set_mempolicy() in their reserved places.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:47 +00:00
Paul Mundt
b66d51cb80 sh: Tidy compiler warnings for SH-2A build.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:46 +00:00
Paul Mundt
6240d92f2f sh: Wrap CPU tuning through cc-option.
Some compilers don't support the explicit CPU tuning, while binutils
is still able to handle the special subtype-specific opcodes. Make
the CFLAG optional, falling back on the compiler default if nothing
better exists.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:46 +00:00
Paul Mundt
fa1ec92e1d sh: Enable IPR-IRQ for SH7206.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:46 +00:00
Paul Mundt
2826fa61c1 sh: Mark sparsemem regions present earlier.
We have to call in to sparse_memory_present_with_active_regions()
earlier in order for sparsemem to be happy. This was being called
too late, and was causing troubles with the platforms that needed
to enable sparsemem.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:45 +00:00
Paul Mundt
d22d9b3a1d sh: Register multiple nodes in topology_init().
If we have multiple nodes, register these at topology_init() time.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:45 +00:00
Paul Mundt
91e656aacf sh: Allow for bootmem debug support.
Handy for debugging bootmem troubles.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:43 +00:00
Paul Mundt
dfbb904280 sh: sparsemem support.
This implements basic sparsemem support for SH. Presently this only
uses static sparsemem, and we still permit explicit selection of
flatmem. Those boards that want sparsemem can select it as usual.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:43 +00:00
Nobuhiro Iwamatsu
678597be5e sh: Add L-BOX RE2 to mach-types.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:42 +00:00
Takashi YOSHII
3a3c60fc0b sh: Align .machvec.init section on a 4-byte boundary.
.machvec.init can be misaligned with the recent machvec changes,
forcibly align it on the boundary that it expects, as before.

Signed-off-by: Takashi YOSHII <takashi.yoshii.ze@hitachi.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:41 +00:00
Paul Mundt
05627486ab sh: Fix SH-4 CPU selects.
Now that select no longer works for selecting the "closest" CPU,
we have to explicitly reference the precise sub-type in the few
places where it actually matters (presently only setup code and
some legacy sh-sci cruft).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:40 +00:00
Paul Mundt
fd8f20e8e2 sh: Rip out special unknown machvec.
This kills off the BareCPU board as a "special" machvec, rather,
we leave this as a default for when no other vector is available,
or when we want to use it in combination with other vectors for
testing with generic ops. As sh_mv is copied out anyways (or
overloaded when an alternate vector is explicitly selected), this
doesn't consume any additional memory.

The generic machvec can be forcibly selected with sh_mv=generic,
or by not having any other boards enabled.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:40 +00:00
Paul Mundt
82f81f4784 sh: Kill off machvec aliases.
We now throw all of the machvecs in to .machvec.init and either
select one on the command line, or copy out the first (and
usually only) one to sh_mv. The rest are freed as usual.

This gets rid of all of the silly sh_mv aliasing and makes the
selection explicit rather than link-order dependent.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:39 +00:00
Paul Mundt
25f8151bdc sh: Get multiple boards in one image working again.
This tidies up the build rules and permits multiple boards to be
linked in to the same kernel. The earlier Kconfig work ensures that
the CPU configuration is consistent across the boards, as this is
the only thing that we can't do dynamically.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:39 +00:00
Paul Mundt
ba36197cf4 sh: Fixup cmdline handling from machvec changes.
The command line wasn't being saved off properly after the machvec
changes went in, fix it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:38 +00:00
Paul Mundt
f3d2229852 sh: Rework CPU/board dependencies.
This was a big mess, rework the logic a bit so that we constrain
to a particular subtype and figure out the board support based
on that. This makes building subtype specific kernels supporting
multiple boards possible again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:38 +00:00
Paul Mundt
882c12c4e1 sh: Shut up SH2-DSP compile warnings.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:37 +00:00
Paul Mundt
9655ad03af sh: Fixup machvec support.
This fixes up much of the machvec handling, allowing for it to be
overloaded on boot. Making practical use of this still requires
some Kconfig munging, however.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:37 +00:00
Paul Mundt
e08f457c7c sh: __user annotations for __get/__put_user().
This adds in some more __user annotations. These weren't being
handled properly in some of the __get_user and __put_user paths,
so tidy those up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:36 +00:00
Paul Mundt
7a302a9674 sh: Split out CPU topology initialization.
Split out the CPU topology initialization to a separate file,
and switch it to a percpu type, rather than an NR_CPUS array.

At the same time, switch to only registering present CPUs,
rather than using the possible CPU map.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:35 +00:00
Paul Mundt
9a412847fb sh: Fix se73180 platform device registration.
Copy and paste error from se7343, fix it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-04 11:07:23 +09:00
Paul Mundt
0fd1475414 sh: ioremap() through PMB needs asm/mmu.h.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-04 10:58:23 +09:00
Paul Mundt
63dfc3c77b sh: voyagergx: Fix build warnings.
pr_debug() was using a %x on an unsigned long, which was making
the build a bit noisy.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-04 10:53:00 +09:00
Paul Mundt
907c9d7004 sh: Fix SH4-202 clock fwk set_rate() mismatch.
With the SH7722 changes, ->set_rate() also takes an algo_id,
SH4-202 was overlooked when this change went in.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-04 10:51:59 +09:00
Paul Mundt
8b19a7ce56 sh: microdev: Fix compile warnings.
irq.c needs linux/interrupt.h.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-04 10:50:42 +09:00
Paul Mundt
c596b1a380 sh: Fix in_nmi symbol build error.
If CONFIG_KGDB_NMI is disabled, we're left with a stray in_nmi
reference that can't be resolved. Move the symbol under the ifdef,
too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-04 10:39:50 +09:00
Andrew Morton
4e1c208420 sh: support older gcc's
Make my version of gcc happy.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-31 13:48:57 +09:00
Evgeniy Polyakov
66c5227ecd sh: trivial build cleanups.
Several errors were spotted during building for custom config (SMP
included). Although SMP still does not compile (no ipi and
__smp_call_function) and does not work, this looks a bit cleaner.
Some other errors obtained via gcc-4.1.0 build.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-31 13:46:21 +09:00
Manuel Lauss
f75522cea1 sh: Fix vsyscall build failure.
CC      arch/sh/kernel/vsyscall/vsyscall.o
a/arch/sh/kernel/vsyscall/vsyscall.c: In function 'arch_setup_additional_pages':
a/arch/sh/kernel/vsyscall/vsyscall.c:63: error: dereferencing pointer to incomplete type
a/arch/sh/kernel/vsyscall/vsyscall.c:67: error: dereferencing pointer to incomplete type
a/arch/sh/kernel/vsyscall/vsyscall.c:82: error: dereferencing pointer to incomplete type
a/arch/sh/kernel/vsyscall/vsyscall.c:85: error: dereferencing pointer to incomplete type
a/arch/sh/kernel/vsyscall/vsyscall.c: In function 'arch_vma_name':
a/arch/sh/kernel/vsyscall/vsyscall.c:91: error: dereferencing pointer to incomplete type

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-31 13:44:55 +09:00
Manuel Lauss
bdff33ddd9 sh: Trivial fix for dma-api compile failure.
Trivial fix for arch/sh/drivers/dma/dma-api.c compile failure:

  CC      arch/sh/drivers/dma/dma-api.o
a/arch/sh/drivers/dma/dma-api.c: In function 'dma_wait_for_completion':
a/arch/sh/drivers/dma/dma-api.c:233: error: 'TASK_UNINTERRUPTIBLE' undeclared (first use in this function)
a/arch/sh/drivers/dma/dma-api.c:233: error: (Each undeclared identifier is reported only once
a/arch/sh/drivers/dma/dma-api.c:233: error: for each function it appears in.)
a/arch/sh/drivers/dma/dma-api.c:233: warning: implicit declaration of function 'schedule'

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-31 13:44:17 +09:00
Takashi YOSHII
370ac91aab sh: Fix pcrel too far for in_nmi label.
Add lost in_nmi definition to solve pcrel too far.

Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-31 13:42:21 +09:00
Paul Mundt
ddd43b063d sh: section mismatch fixes for system timer.
Fix up a couple of section mismatch warnings regarding sys_timer.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-23 12:24:32 +09:00
Linus Torvalds
cdb7532f7b Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Fix dreamcast build for IRQ changes.
  sh: Fix clock multiplier on SH7722.
  sh: Wire up kdump crash kernel exec in die().
  sh: sr.bl toggling around idle sleep.
  sh: disable genrtc support.
  fs: Kill sh dependency for binfmt_flat.
  sh: Disable psw support for R7785RP.
  sh: Fix page size alignment in __copy_user_page().
  sh: Fix up various compile warnings for SE boards.
  sh: Wire up signalfd/timerfd/eventfd syscalls.
  sh: revert addition of page fault notifiers
  spelling fixes: arch/sh/
  input: hp680_ts compile fixes.
  sh: landisk: Header cleanups.
  sh: landisk: rtc-rs5c313 support.
  sh: Kill off pmb slab cache destructor.
  sh: Fix up psw build rules for r7780rp.
  sh: Shut up compiler warnings in __do_page_fault().
2007-05-22 17:26:18 -07:00
dmitry pervushin
dfbbbe9295 sh: Fix clock multiplier on SH7722.
This fixes up the master clock multiplier and initial rate
propagation for the SH7722 clocks.

Signed-off-by: dmitry pervushin <dimka@nomadgs.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-21 14:34:45 +09:00
Paul Mundt
e113276624 sh: Wire up kdump crash kernel exec in die().
Now that we have the basic kdump support in place, add it in to
die() so we can enter the crash kernel automatically.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-21 14:34:37 +09:00
Paul Mundt
f3a9022fd1 sh: sr.bl toggling around idle sleep.
As pointed out by Saito-san, without the sr.bl manipulation we can
occasionally hit delays in the idle loop due to interrupt handling, so
ensure that interrupts are blocked before going to sleep.

At the same time, we throw in TIF_POLLING_NRFLAG for the !hlt_counter
case (primarily used by the ST-40 parts).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-21 14:34:25 +09:00
Paul Mundt
9af9a413d2 sh: Disable psw support for R7785RP.
While R7780RP and R7780MP support this, R7785RP does not.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-21 14:33:17 +09:00
Paul Mundt
0d08b5fb37 sh: Fix page size alignment in __copy_user_page().
SH-3 comes up with the PAGE_SIZE on a misaligned boundary:

arch/sh/mm/copy_page.S: Assembler messages:
arch/sh/mm/copy_page.S:132: Warning: misaligned data

fix it up with explicit alignment.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-21 14:33:13 +09:00
Paul Mundt
27641dee99 sh: Fix up various compile warnings for SE boards.
- setup-sh7750.c only defines the sh7751_ipr_map when building
  with SH7751 support.

- 7722 Solution Engine was missing a mach-type entry, causing
  the macro in cf-enabler to be undefined.

- arch/sh/mm/init.c needs linux/pagemap.h.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-21 14:32:47 +09:00
Paul Mundt
26bbfda8b1 sh: Wire up signalfd/timerfd/eventfd syscalls.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-21 14:32:14 +09:00
Christoph Hellwig
fce692e798 sh: revert addition of page fault notifiers
Just at the time you added them on sh we're removing them from other
architectures. As there's no user yet this patch just removes them
completely. Once you actually have a kprobes patch it should follow
the direct call to kprobes_fault_handler model that powerpc, s390 and
sparc64 employ in 2.6.22-rc1 and that I'm updating other architectures
to.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-21 14:32:10 +09:00
Simon Arlott
e868d61272 spelling fixes: arch/sh/
Spelling fixes in arch/sh/.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-21 14:31:39 +09:00
Sam Ravnborg
ca967258b6 all-archs: consolidate .data section definition in asm-generic
With this consolidation we can now modify the .data
section definition in one spot for all archs.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-19 09:11:57 +02:00
Sam Ravnborg
7664709b44 all-archs: consolidate .text section definition in asm-generic
Move definition of .text section to asm-generic.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-19 09:11:57 +02:00
kogiidena
ad47c12b35 sh: landisk: rtc-rs5c313 support.
Add the rs5c313 platform device to the landisk setup code.

Signed-off-by: kogiidena <kogiidena@eggplant.ddo.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-14 09:18:34 +09:00
Paul Mundt
38c425f69c sh: Kill off pmb slab cache destructor.
This is the last remaining slab destructor in the kernel, which
we kill off and move the resultant list tracking logic up to
the pmb_alloc()/pmb_free() paths.

As Christoph Lameter pointed out, it's potentially unsafe to be
taking the list lock in the destructor anyways, so this is also
more fundamentally correct.

With this in place, we're all set for killing off slab destructors
from the kernel entirely.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-14 09:18:34 +09:00
Paul Mundt
0facbe3a34 sh: Fix up psw build rules for r7780rp.
When reordering the Makefile rules, the psw support was being
clobbered. Fix it up so it's linked in again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-14 09:18:34 +09:00
Paul Mundt
b8947444a7 sh: Shut up compiler warnings in __do_page_fault().
GCC doesn't seem to be able to figure this one out for
itself, so just shut it up..

  CC      arch/sh/mm/fault.o
arch/sh/mm/fault.c: In function '__do_page_fault':
arch/sh/mm/fault.c:288: warning: 'ptl' may be used uninitialized in this function

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-14 09:18:34 +09:00
Linus Torvalds
d84c4124c4 Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Fix stacktrace simplification fallout.
  sh: SH7760 DMABRG support.
  sh: clockevent/clocksource/hrtimers/nohz TMU support.
  sh: Truncate MAX_ACTIVE_REGIONS for the common case.
  rtc: rtc-sh: Fix rtc_dev pointer for rtc_update_irq().
  sh: Convert to common die chain.
  sh: Wire up utimensat syscall.
  sh: landisk mv_nr_irqs definition.
  sh: Fixup ndelay() xloops calculation for alternate HZ.
  sh: Add 32-bit opcode feature CPU flag.
  sh: Fix PC adjustments for varying opcode length.
  sh: Support for SH-2A 32-bit opcodes.
  sh: Kill off redundant __div64_32 symbol export.
  sh: Share exception vector table for SH-3/4.
  sh: Always define TRAPA_BUG_OPCODE.
  sh: __GFP_REPEAT for pte allocations, too.
  rtc: rtc-sh: Fix up dev_dbg() warnings.
  sh: generic quicklist support.
2007-05-09 13:08:20 -07:00
Paul Mundt
a3cf4ea872 sh: Fix stacktrace simplification fallout.
When the stacktrace simplification changes went in the function
definition on SH got skipped, fix it up so things build again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 18:55:14 +09:00
Manuel Lauss
fc467a2623 sh: SH7760 DMABRG support.
The DMABRG is a special DMA unit within the SH7760 which does data
transfers from main memory to Audio units and USB shared memory.
It has 3 IRQ lines which generate 10 events, which have to be masked
unmasked and acked in a single 32bit register. It works independently
from the tradition SH DMAC, but blocks usage of DMAC channel 0.

This patch adds 2 functions to associate callbacks with DMABRG events
and initialization.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 17:36:15 +09:00
Paul Mundt
57be2b484a sh: clockevent/clocksource/hrtimers/nohz TMU support.
This adds basic support for clockevents and clocksources,
presently only implemented for TMU-based systems (which
are the majority of SH-3 and SH-4 systems).

The old NO_IDLE_HZ implementation is also dropped completely,
the only users of this were on TMU-based systems anyways.

More work needs to be done to generalize the TMU handling,
in that the current implementation is rather tied to the
notion of TMU0 and TMU1 utilization.

Additionally, as more SH timers switch over to this scheme,
we'll be able to gut most of the remaining system timer
infrastructure that existed before.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 17:33:24 +09:00
Uwe Kleine-König
5886269962 fix file specification in comments
Many files include the filename at the beginning, serveral used a wrong one.

Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-09 08:58:16 +02:00
Paul Mundt
1ce7ddd5f4 sh: Truncate MAX_ACTIVE_REGIONS for the common case.
Most SH platforms aren't going to need more than a single active
region, ones that need more can pad this out as necessary.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 13:20:52 +09:00
Paul Mundt
b118ca572d sh: Convert to common die chain.
This went in immediately after SH added the die chain notifiers,
so move over to that instead..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 10:55:38 +09:00
Paul Mundt
21ec4c6453 sh: Wire up utimensat syscall.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 10:42:48 +09:00
kogiidena
f6a3c1ca00 sh: landisk mv_nr_irqs definition.
Fix up the landisk build. When NR_IRQS was removed, landisk got missed
in the updates. Update the machvec for the landisk IRQs to get it
working again.

Signed-off-by: kogiidena <kogiidena@eggplant.ddo.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 01:35:02 +00:00
kogiidena
c71861e65e sh: Fixup ndelay() xloops calculation for alternate HZ.
Currently the xloops calculation in ndelay() gets set to 0 when
calculated with HZ=250, fix up how we do the HZ factoring in order
to get this right for differing values.

Signed-off-by: kogiidena <kogiidena@eggplant.ddo.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 01:35:02 +00:00
Paul Mundt
074f98df05 sh: Add 32-bit opcode feature CPU flag.
Add a CPU flag for the CPUs that support 32-bit opcodes, which
gets passed down to userspace.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 01:35:01 +00:00
Paul Mundt
53f983a90d sh: Fix PC adjustments for varying opcode length.
There are a few different cases for figuring out how to
size the instruction. We read in the instruction located
at regs->pc - 4 when rewinding the opcode to figure out if
there's a 32-bit opcode before the faulting instruction, with
a default of a - 2 adjustment on a mismatch. In practice this
works for the cases where pc - 4 is just another 16-bit opcode,
or we happen to have a 32-bit and a 16-bit immediately
preceeding the pc value.

In the cases where we aren't rewinding, this is much less ugly..

We also don't bother fixing up the places where we're explicitly
dealing with 16-bit instructions, since this might lead to
confusion regarding the encoding size possibilities on other
CPU variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 01:35:01 +00:00
Paul Mundt
bd0799977c sh: Support for SH-2A 32-bit opcodes.
SH-2A supports both 16 and 32-bit instructions, add a simple helper
for figuring out the instruction size in the places where there are
hardcoded 16-bit assumptions.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 01:35:01 +00:00
Paul Mundt
51c8b856f5 sh: Kill off redundant __div64_32 symbol export.
modpost noticed that __div64_32 was being exported twice:

WARNING: lib/built-in: '__div64_32' exported twice. Previous export was
in arch/sh/kernel/built-in.ko

kill off the duplicate.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 01:35:01 +00:00
Paul Mundt
00bf0610e4 sh: Share exception vector table for SH-3/4.
The only difference between these at the moment are the FPU
exceptions, and these are hidden away under CONFIG_SH_FPU
(which is only set for the SH-4 case anyways..).

This consolidates the two tables, and updates SH-4 to use
the updated copy.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 01:35:01 +00:00
Paul Mundt
5f8c9908f2 sh: generic quicklist support.
This moves SH over to the generic quicklists. As per x86_64,
we have special mappings for the PGDs, so these go on their
own list..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 01:35:00 +00:00
Bernhard Walle
e9485baed0 Add IRQF_IRQPOLL flag on sh
Add IRQF_IRQPOLL on each timer interrupt on SH2.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:22 -07:00
Randy Dunlap
e63340ae6b header cleaning: don't include smp_lock.h when not used
Remove includes of <linux/smp_lock.h> where it is not used/needed.
Suggested by Al Viro.

Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,
sparc64, and arm (all 59 defconfigs).

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:07 -07:00
Gerd Hoffmann
69331af79c Fixes and cleanups for earlyprintk aka boot console
The console subsystem already has an idea of a boot console, using the
CON_BOOT flag.  The implementation has some flaws though.  The major
problem is that presence of a boot console makes register_console() ignore
any other console devices (unless explicitly specified on the kernel
command line).

This patch fixes the console selection code to *not* consider a boot
console a full-featured one, so the first non-boot console registering will
become the default console instead.  This way the unregister call for the
boot console in the register_console() function actually triggers and the
handover from the boot console to the real console device works smoothly.
Added a printk for the handover, so you know which console device the
output goes to when the boot console stops printing messages.

The disable_early_printk() call is obsolete with that patch, explicitly
disabling the early console isn't needed any more as it works automagically
with that patch.

I've walked through the tree, dropped all disable_early_printk() instances
found below arch/ and tagged the consoles with CON_BOOT if needed.  The
code is tested on x86, sh (thanks to Paul) and mips (thanks to Ralf).

Changes to last version: Rediffed against -rc3, adapted to mips cleanups by
Ralf, fixed "udbg-immortal" cmd line arg on powerpc.

Signed-off-by: Gerd Hoffmann <kraxel@exsuse.de>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:04 -07:00
Christoph Hellwig
ab1b6f03a1 simplify the stacktrace code
Simplify the stacktrace code:

 - remove the unused task argument to save_stack_trace, it's always
   current
 - remove the all_contexts flag, it's alwasy 0

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Andi Kleen <ak@suse.de>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:14:58 -07:00
Akinobu Mita
0e6b9c98be use SLAB_PANIC flag cleanup
Use SLAB_PANIC and delete duplicated panic().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Ian Molton <spyro@f2s.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:14:57 -07:00
Ryusuke Sakato
39374aadcd sh: R7785RP board updates.
Some fixups for the R7785RP board. Gets iVDR working.

Signed-off-by: Ryusuke Sakato <sakato.ryusuke@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:57 +00:00
Paul Mundt
9c37dc6330 sh: Update r7780rp defconfig.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:57 +00:00
Paul Mundt
3a2e117e22 sh: Add die chain notifiers.
Add the atomic die chains in, kprobes needs these.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:57 +00:00
Kristoffer Ericson
3dde7a3c74 sh: Fix APM emulation on hp6xx.
With the shared APM emulation code being introduced, hp6xx was missed
in the conversion. Get it building again.

Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:57 +00:00
Takashi YOSHII
70fe4d87bf sh: Wire up more IRQs for SH7709.
hp6xx requires some additional IRQs that aren't currently enabled in
the SH7709 setup code. Wire them up.

Signed-off-by: Takashi YOSHII <takashi.yoshii.ze@hitachi.com>
Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:57 +00:00
Ryusuke Sakato
6865f0ea6a sh: Solution Engine 7722 board support.
This adds more full-featured support for the SH7722 Solution Engine.
Previously this was using the generic board, and lacked most of the
peripheral support.

Signed-off-by: Ryusuke Sakato <sakato.ryusuke@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:57 +00:00
Paul Mundt
4d5ade5b29 sh: kdump support.
This adds support for kexec based crash dumps.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:56 +00:00
Paul Mundt
db62e5bd29 sh: Move clock reporting to its own proc entry.
Previously this was done in cpuinfo, but with the number of clocks
growing, it makes more sense to place this in a different proc entry.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:56 +00:00
Nobuhiro Iwamatsu
2a8ff4596c sh: Solution Engine SH7705 board and CPU updates.
This fixes up SH7705 CPU support and the SE7705 board
for some of the recent changes.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:56 +00:00
dmitry pervushin
1929cb340b sh: SH7722 clock framework support.
This adds support for the SH7722 (MobileR) to the clock framework.

Signed-off-by: dmitry pervushin <dimka@nomadgs.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:56 +00:00
Kristoffer Ericson
34a780a0af sh: hp6xx pata_platform support.
Drop the hd64461 I/O ops and wire up pata_platform for MMIO.

Signed-off-by: Kristoffer Ericson <Kristoffer_e1@hotmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:56 +00:00
Nobuhiro Iwamatsu
b7aee517c8 sh: se7780 PCI support.
Add support for the SH7780 PCIC on the Solution Engine 7780,
missing from the previous board-support patch.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:55 +00:00
Nobuhiro Iwamatsu
b75762302e sh: SH7780 Solution Engine board support.
This adds support for the SH7780-based Solution Engine reference board.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:55 +00:00
Paul Mundt
cd6c7ea234 sh: Add a dummy SH-4 PCIC fixup.
By default we don't have anything to fix up for the SH-4 PCIC, boards can
overload this as necessary.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:55 +00:00
Paul Mundt
0264f16039 sh: Tidy up L-BOX area5 addresses.
L-BOX can use the normal PA_AREA5_IO, there's no reason for it to
reproduce it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:55 +00:00
Paul Mundt
652b9672cf sh: Add defconfig for se7722.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:55 +00:00
Paul Mundt
cdf50b23bf sh: Kill off udivdi3 div64_32 wrapping.
Previously we've been handling udivdi3 references and wrapping
them in to div64_32() automatically. This doesn't get a lot of
use, however, and as akpm noted in the recent thread on l-k:

	http://lkml.org/lkml/2007/2/27/241

we're better off simply ripping it out and going the do_div()
route if there happen to be any places that need it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:11:55 +00:00
Paul Mundt
01066625e9 sh: bootmem tidying for discontig/sparsemem preparation.
This reworks some of the node 0 bootmem initialization in
preparation for discontigmem and sparsemem support.

ARCH_POPULATES_NODE_MAP is switched to as a result of this.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:54 +00:00
Nobuhiro Iwamatsu
759ab068c4 sh: Add defconfig for se7712.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:54 +00:00
Nobuhiro Iwamatsu
9465a54fa4 sh: MS7712SE01 board support.
Support the SH7712 (SH3-DSP) Solution Engine reference board.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:54 +00:00
Nobuhiro Iwamatsu
c86c5a9104 sh: L-BOX RE2 support.
This adds support for the L-BOX RE2 router.

	http://www.nttcom.co.jp/l-box/

L-BOX RE2 is a SH7751R-based router. It has CF, Cardbus, serial,
and LAN x2. This is one of the very few SH boards that a general
person can obtain now.

The L-BOX shipped with a 2.4.28 kernel, this is a rewritten patch
adding it to current git.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:54 +00:00
kogiidena
00e8c494a1 sh: landisk updates.
Updates for the landisk board:

	- The push_switch framework was used.
	- landisk_pwb.c was divided into psw.c and gio.c.
	- pata_platform was supported in USL-5P.
	- irq.c was rewritten.
	- io.c was replaced with generic I/O routines.

Signed-off-by: kogiidena <kogiidena@eggplant.ddo.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:54 +00:00
Takashi YOSHII
f6072896e3 sh: heartbeat double 0 fix.
This implements stricter and more compliant knightrider strobing in the
heartbeat handler. While there still seems to be some debate as to
whether the double 0 is "more" correct or not, this updated version
appears to have general consensus. Fixes a long-term "bug".

Signed-off-by: Takashi YOSHII <takashi.yoshii.ze@hitachi.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:53 +00:00
Nobuhiro Iwamatsu
f987fc880d sh: pata_platform pcmcia support for SolutionEngine boards.
This enables pata_platform support for the PCMCIA slot on the
SolutionEngine.

Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:53 +00:00
Paul Mundt
32351a28a7 sh: Add SH7785 Highlander board support (R7785RP).
This adds preliminary support for the SH7785-based Highlander board.
Some of the Highlander support code is reordered so that most of it
can be reused directly.

This also plugs in missing SH7785 checks in the places that need it,
as this is the first board to support the CPU.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:53 +00:00
Paul Mundt
be782df54c sh: NR_IRQS consolidation.
Each board sets the total number of IRQs that it's interested in via
the machvec. Previously we cared about the off vs on-chip IRQ range,
but any code relying on that is long dead. Set NR_IRQS to something
sensible given the vector range, and allow boards to cap it if they
really care.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:53 +00:00
Paul Mundt
fa69151173 sh: generic BUG() support.
Wire up GENERIC_BUG for SH. This moves off of the special bug
frame and on to the generic struct bug_entry. Roughly the same
semantics are retained, and we can kill off some of the verbose
BUG() reporting code.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:53 +00:00
Paul Mundt
45ed285b54 sh: speculative execution support for SH7780.
SH7780 has a speculative execution mode where it can speculatively
perform an instruction fetch for subroutine returns, this allows it
to be enabled. There are some various pitfalls associated with this
mode, so it's left as depending on CONFIG_EXPERIMENTAL and not
enabled by default.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:51 +00:00
Paul Mundt
fc31b80957 sh: Rip out broken kgdb thread support.
The kgdb thread support is woefully out of date (it predates
the pidhash), and needs a complete rewrite before it's useful
again. Just rip it out entirely.

Updating the unified kgdb stub is a more worthwhile endeavour
for anyone that happens to be interested in this, at present
it's just limping along.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:51 +00:00
Paul Mundt
fa5da2f7bd sh: Bring kgdb back from the dead.
This code has suffered quite a bit of bitrot, do some basic
tidying to get it to a reasonably functional state again.
This gets the basic support and the console working again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07 02:10:51 +00:00
Jeremy Fitzhardinge
b6e3590f81 [PATCH] x86: Allow percpu variables to be page-aligned
Let's allow page-alignment in general for per-cpu data (wanted by Xen, and
Ingo suggested KVM as well).

Because larger alignments can use more room, we increase the max per-cpu
memory to 64k rather than 32k: it's getting a little tight.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2007-05-02 19:27:12 +02:00
Johannes Berg
e8c9c50269 power management: implement pm_ops.valid for everybody
Almost all users of pm_ops only support mem sleep, don't check in .valid and
don't reject any others in .prepare so users can be confused if they check
/sys/power/state, especially when new states are added (these would then
result in s-t-r although they're supposed to be something different).

This patch implements a generic pm_valid_only_mem function that is then
exported for users and puts it to use in almost all existing pm_ops.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: linux-pm@lists.linux-foundation.org
Cc: Len Brown <lenb@kernel.org>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Greg KH <greg@kroah.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-30 16:40:40 -07:00
Johannes Berg
fe0c935a6c rework pm_ops pm_disk_mode, kill misuse
This patch series cleans up some misconceptions about pm_ops.  Some users of
the pm_ops structure attempt to use it to stop the user from entering suspend
to disk, this, however, is not possible since the user can always use
"shutdown" in /sys/power/disk and then the pm_ops are never invoked.  Also,
platforms that don't support suspend to disk simply should not allow
configuring SOFTWARE_SUSPEND (read the help text on it, it only selects
suspend to disk and nothing else, all the other stuff depends on PM).

The pm_ops structure is actually intended to provide a way to enter
platform-defined sleep states (currently supported states are "standby" and
"mem" (suspend to ram)) and additionally (if SOFTWARE_SUSPEND is configured)
allows a platform to support a platform specific way to enter low-power mode
once everything has been saved to disk.  This is currently only used by ACPI
(S4).

This patch:

The pm_ops.pm_disk_mode is used in totally bogus ways since nobody really
seems to understand what it actually does.

This patch clarifies the pm_disk_mode description.

It also removes all the arm and sh users that think they can veto suspend to
disk via pm_ops; not so since the user can always do echo shutdown >
/sys/power/disk, they need to find a better way involving Kconfig or such.

ACPI is the only user left with a non-zero pm_disk_mode.

The patch also sets the default mode to shutdown again, but when a new pm_ops
is registered its pm_disk_mode is selected as default, that way the default
stays for ACPI where it is apparently required.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: <linux-pm@lists.linux-foundation.org>
Cc: Len Brown <lenb@kernel.org>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Greg KH <greg@kroah.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-30 16:40:40 -07:00
David S. Miller
ded220bd8f [STRING]: Move strcasecmp/strncasecmp to lib/string.c
We have several platforms using local copies of identical
code.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:54:39 -07:00
Paul Mundt
9c5b406b9a sh: Kill bogus GCC4 symbol exports.
__sdivsi3_i4i, __udiv_qrnnd_16, and __udivsi3_i4i don't exist
outside of the ST compiler, so kill them off.

This causes compile failures with other GCC4 compilers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-28 17:24:47 +09:00
Paul Mundt
3afb209a43 sh: Fix bogus regs pointer in do_IRQ().
SH-3 and SH-4 were trampling the register, and SH-2 wasn't even
setting it in the first place. This ended up with some rather
broken behaviour in the sysrq show_regs().

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-14 13:03:35 +09:00
Paul Mundt
ffe1b4e9f4 sh: Fix SH-3 cache entry_mask and way_size calculation.
The code for performing the calculation was only in the SH-4 probe
path, move it out to the common path so the other parts get this
right too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-12 16:15:22 +09:00
Hideo Saito
bb68660943 sh: Fix PCI BAR address-space wraparound.
When a SH7751R system includes a card that has wide range space
like a graphics card, the pci-pci bridge controller can't set the
correct address range.

For example, when *lower_limit is 0xfd000000 and bar_size is
0x4000000, in the following code at arch/sh/drivers/pci/pci-auto.c,
0x0 is set in bar_value.

pciauto_setup_bars()
{
...
                bar_value = ((*lower_limit - 1) & ~(bar_size - 1)) + bar_size;
...
                *lower_limit = bar_value + bar_size;
}

As a result, 0x4000000 is set in *lower_limit, but this value is wrong.

The following patch avoids this problem by checking the range of the
value and refusing to update the BAR if the calculated value ends up
being bogus.

Signed-off-by: Hideo Saito <saito@densan.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-12 14:50:49 +09:00
Paul Mundt
ccd45ad405 sh: Kill off I/O cruft for R7780RP.
We don't have any use for these machvec fixups anymore, kill them all
off and go with the generic instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-05 20:19:57 +09:00
Paul Mundt
39e688a94b sh: Revert lazy dcache writeback changes.
These ended up causing too many problems on older parts,
revert for now..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-05 19:46:47 +09:00
Paul Mundt
c87a711134 sh: Enable SM501 support for RTS7751R2D.
This enables the SM501 drivers for the R2D board. Additional
work needs to be done to migrate off of the VoyagerGX cchip
code to make use of the rest of the mfd infrastructure.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-05 14:13:26 +09:00
Paul Mundt
87e29cacb7 sh: Use L1_CACHE_BYTES for .data.cacheline_aligned.
Previously this was using a hardcoded 32, use L1_CACHE_BYTES for
cacheline alignment instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-05 14:13:26 +09:00
Hideo Saito
e6bcf562e5 sh: Fix kernel thread stack corruption with preempt.
When I run a preemptive kernel-2.6.20 for SH7780, a created
kthread(pdflush) can not exit by do_exit() in kernel_thread_helper. I
think that the created kthread should have a room for 'struct pt_regs'
space on the stack top, because __switch_to() will refer to the space as
follows using 'regs = task_pt_regs(prev)' and next condition may be true.

Signed-off-by: Hideo Saito <saito@densan.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-05 14:13:26 +09:00
Ryusuke Sakato
c8bfa1fdc8 sh: Fix sigmask trampling in signal delivery.
There was a missing return in do_signal() that caused the saved
sigmask to be written back after having successfully delivered
the signal.

Signed-off-by: Ryusuke Sakato <sakato@hsdv.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-05 14:13:25 +09:00
Stuart Menefy
9432f96803 sh: Clear UBC when not in use.
This takes care of tearing down the UBC so it's not inadvertently
left configured at the next context switch time. Failure to do
this results in spurious SIGTRAPs in certain debug sequences.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-05 14:13:25 +09:00
Tobias Klauser
c5a69d57eb 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: Adrian Bunk <bunk@stusta.de>
2007-02-17 20:11:19 +01:00
Paul Mundt
9c57548f17 sh: rts7751r2d board updates.
This tidies up some of the rts7751r2d mess and gets it booting
again. Update the defconfig, too.

Signed-off-by: Masayuki Hosokawa <hosokawa@ace-jp.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-15 18:20:52 +09:00
Paul Mundt
e65fa9f59e sh: Kill off dead bigsur and ec3104 boards.
Neither of these have had any maintenance in years, and there's
no interest in keeping them straggling along. These have already
been slated for removal some time, so finally just get rid of them.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-14 15:06:09 +09:00
Paul Mundt
71074d3a2c sh: Fixup r7780rp pata_platform for devres conversion.
Tidy up the R7780RP I/O mapping routines and switch the
pata_platform resources to IORESOURCE_MEM types, killing off
the useless port->addr conversion.

This fixes up R7780RP to boot after the recent devres conversion.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-14 14:49:04 +09:00
Paul Mundt
db2e1fa3f0 sh: Revert TLB miss fast-path changes that broke PTEA parts.
This ended up causing problems for older parts (particularly ones
using PTEA). Revert this for now, it can be added back in once it's
had some more testing.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-14 14:13:10 +09:00
Paul Mundt
401e9093a3 sh: Compile fix for heartbeat consolidation.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 15:46:39 +09:00
Paul Mundt
3b4d953962 sh: heartbeat consolidation for banked LEDs.
This consolidates the various board heartbeat LED implementations,
used for strobing the load average across a LED bank. Those boards
not implementing a full bank can hook in via the LED class.

We leave the compat hook in the machvec for now until those non-banked
boards are able to migrate to the drivers/leds.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 15:42:28 +09:00
Paul Mundt
ca43ecbf6e sh: Kill dead/unused ISA code from __ioremap().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:46 +09:00
Paul Mundt
b37814352d sh: Fix syscall numbering breakage.
We accidentally broke the inotify syscalls, fix those up again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:46 +09:00
Paul Mundt
5904539b7f sh: dcache write-back for R7780RP PIO.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:45 +09:00
Paul Mundt
0072032d7b sh: Switch to local TLB flush variants in additional callsites.
Convert some of the global flush users over to using the local variants
that don't need to use the global routines.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:45 +09:00
Paul Mundt
ea9af69481 sh: Local TLB flushing variants for SMP prep.
Rename the existing flush routines to local_ variants for use by
the IPI-backed global flush routines on SMP.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:45 +09:00
Paul Mundt
11c1965687 sh: Fixup cpu_data references for the non-boot CPUs.
There are a lot of bogus cpu_data-> references that only end up working
for the boot CPU, convert these to current_cpu_data to fixup SMP.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:45 +09:00
Paul Mundt
aec5e0e1c1 sh: Use a per-cpu ASID cache.
Previously this was implemented using a global cache, cache
this per-CPU instead and bump up the number of context IDs to
match NR_CPUS.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:45 +09:00
Andrew Morton
506b85f411 sh: add SH_CLK_MD Kconfig default.
This option needs a default - otherwise `make allmodconfig' gets
stuck in an infinite loop.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:45 +09:00
Nobuhiro Iwamatsu
dbbfa2da27 sh: Fixup SHMIN INTC register definitions.
Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:45 +09:00
Manuel Lauss
9f8a5e3a44 sh: SH-DMAC compile fixes
This patch does the following:
- remove the make_ipr_irq stuff from dma-sh.c and replace it
  with a simple channel<->irq mapping table.
- add DMTEx_IRQ constants for sh4 cpus
- fix sh7751 DMAE irq number

The SH7780 uses the same IRQs for DMA as other SH4 types, so
I put the constants on top of the dma.h file.

Other CPU types need to #define their own DMTEx_IRQ contants
in their appropriate header.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:45 +09:00
Manuel Lauss
6dcda6f1ec sh: add SH7760 IPR IRQ data
Add SH7760 IPR IRQ data; makes 2.6.20-rc bootable again.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:45 +09:00
Nobuhiro Iwamatsu
86b67ef751 sh: Fix handle_BUG() compile error.
handle_BUG() uses TRAPA_BUG_OPCODE which is only defined for
CONFIG_BUG, make sure it's not built when CONFIG_BUG=n.

Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:45 +09:00
Paul Mundt
adac957096 sh: Don't set reserved _PAGE_WT bit on SH-3.
Only SH-4 needs to set _PAGE_WT when using write-through caching,
don't attempt to set it on SH-3 where it ends up being a reserved
bit.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:44 +09:00
Paul Mundt
26b7a78c55 sh: Lazy dcache writeback optimizations.
This converts the lazy dcache handling to the model described in
Documentation/cachetlb.txt and drops the ptep_get_and_clear() hacks
used for the aliasing dcaches on SH-4 and SH7705 in 32kB mode. As a
bonus, this slightly cuts down on the cache flushing frequency.

With that and the PTEA handling out of the way, the update_mmu_cache()
implementations can be consolidated, and we no longer have to worry
about which configuration the cache is in for the SH7705 case.

And finally, explicitly disable the lazy writeback on SMP (SH-4A).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:44 +09:00
Paul Mundt
7a847f8190 sh: More tidying for large base pages.
There were a few more things that needed fixing up, namely THREAD_SIZE
and the TLB miss handler where certain PTRS_PER_PGD == PTRS_PER_PTE
assumptions were being made.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:44 +09:00
Nobuhiro Iwamatsu
aa4a5db52a sh: Solution Engine 770x IPR irq setup.
Fixups for external IPR IRQs for the SE770x FPGA.

Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:44 +09:00
Nobuhiro Iwamatsu
08d2e099fb sh: Solution Engine 7750's defconfig update.
Update se7750_defconfig.

Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:44 +09:00
Takashi YOSHII
f725b5ee1e sh: shmin updates.
This fixes up shmin (and SH7706/SH7708) IPR support for some of the
recent API changes.

Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:44 +09:00
Paul Mundt
2c081e71ba sh: Fixup R7780RP iVDR clock enable.
The iVDR clock enable bit happens to actually reside in a rather
different place than what is documented, so fix it up accordingly.
This fixes up SATA boot for some of the R7780RP boards that didn't
default-enable the clock in the loader.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:44 +09:00
Jamie Lenehan
703404ea44 sh: allow earlyprintk baud rate to be set via command line
This allows the baud rate for earlyprintk for sh4 without the
standard BIOS to be set via the command line. This uses the same
format as i386 and x86_64, which is:

	earlyprintk=serial,ttySC1,38400

The second parameter (ttySC1 above) is usually the console device
name or the io address of the serial port. I allow that to be
specified but ignore it in order to keep the format the same as
i386/x86_64.

Signed-off-by: Jamie Lenehan <lenehan@twibble.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:44 +09:00
Yoshinori Sato
5c67cd05e3 sh: sh7619 / sh7206 IPR initialize update
IPR initialize proceduere update.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:43 +09:00
Yoshinori Sato
4aa362bbdd sh: Update SH-2 to use the debug trap jump table.
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:43 +09:00
Paul Mundt
702dd80375 sh: Use proper SH-2A CFLAGS on newer compilers.
-m2 doesn't end up working particularly well when we've got a constrained
toolchain target. Switch to the same semantics used by SH-4A to attempt
to get it right. Spotted by Alex Song <songqf9@yahoo.ca>.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:43 +09:00
Paul Mundt
f413d0d9fa sh: Use a jump call table for debug trap handlers.
This rips out most of the needlessly complicated sh_bios and kgdb
trap handling, and forces it all through a common fast dispatch path.
As more debug traps are inserted, it's important to keep them in sync
for all of the parts, not just SH-3/4.

As the SH-2 parts are unable to do traps in the >= 0x40 range, we
restrict the debug traps to the 0x30-0x3f range on all parts, and
also bump the kgdb breakpoint trap down in to this range (from 0xff
to 0x3c) so it's possible to use for nommu.

Optionally, this table can be padded out to catch spurious traps for
SH-3/4, but we don't do that yet..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:43 +09:00
Arjan van de Ven
5dfe4c964a [PATCH] mark struct file_operations const 2
Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

[akpm@osdl.org: sparc64 fix]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:44 -08:00
Alon Bar-Lev
53c82622c2 [PATCH] Dynamic kernel command-line: sh
1. Rename saved_command_line into boot_command_line.
2. Set command_line as __initdata.

Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:39 -08:00