Commit Graph

113 Commits

Author SHA1 Message Date
Linus Torvalds 1db2a5c11e Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (85 commits)
  [S390] provide documentation for hvc_iucv kernel parameter.
  [S390] convert ctcm printks to dev_xxx and pr_xxx macros.
  [S390] convert zfcp printks to pr_xxx macros.
  [S390] convert vmlogrdr printks to pr_xxx macros.
  [S390] convert zfcp dumper printks to pr_xxx macros.
  [S390] convert cpu related printks to pr_xxx macros.
  [S390] convert qeth printks to dev_xxx and pr_xxx macros.
  [S390] convert sclp printks to pr_xxx macros.
  [S390] convert iucv printks to dev_xxx and pr_xxx macros.
  [S390] convert ap_bus printks to pr_xxx macros.
  [S390] convert dcssblk and extmem printks messages to pr_xxx macros.
  [S390] convert monwriter printks to pr_xxx macros.
  [S390] convert s390 debug feature printks to pr_xxx macros.
  [S390] convert monreader printks to pr_xxx macros.
  [S390] convert appldata printks to pr_xxx macros.
  [S390] convert setup printks to pr_xxx macros.
  [S390] convert hypfs printks to pr_xxx macros.
  [S390] convert time printks to pr_xxx macros.
  [S390] convert cpacf printks to pr_xxx macros.
  [S390] convert cio printks to pr_xxx macros.
  ...
2008-12-28 12:33:21 -08:00
Martin Schwidefsky fc5243d98a [S390] arch_setup_additional_pages arguments
arch_setup_additional_pages currently gets two arguments, the binary
format descripton and an indication if the process uses an executable
stack or not. The second argument is not used by anybody, it could
be removed without replacement.

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

Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-12-25 13:38:54 +01:00
Paul Mundt 5d2685d0b3 sh: Conditionalize the code dumper on CONFIG_DUMP_CODE.
We don't really want this enabled by default, but it is still quite
useful for debugging. So, make it conditional and leave it off by
default.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:47 +09:00
Paul Mundt 0146d78759 sh: mrshpc_setup_windows() needs to be inline.
While no one should be including this file multiple times, flag it
inline anyways just in case.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:46 +09:00
Paul Mundt 073da9c0de sh: Kill off cf-enabler with extreme prejudice.
Now that the rest of the boards that were using cf-enabler "generically"
have switched to setting up their mappings on their own, only the mach-se
boards were left using it. All of the cf-enabler using mach-se boards
use a special initialization of the MRSHPC windows rather than going
through the special PTE as other SH-4 platforms do. This consolidates
the MRSHPC setup logic, hooks it up on the boards that care, and gets rid
of any and all remaining references to cf-enabler.

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

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:46 +09:00
Paul Mundt 866ef8f48f sh: mach-edosk7705: Fix up edosk7705 so it all builds again.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:45 +09:00
Paul Mundt 2125a46083 sh: Kill off dead mv_init_pci() from machvec.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:45 +09:00
Paul Mundt 7b80fb32b3 sh: Kill off mv_heartbeat() from the machvec.
Nothing is using this any more, so get rid of it before anyone gets the
bright idea to start using it again.

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

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

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

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

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:04 +09:00
Paul Mundt d7b01f78a3 sh: Enable HAVE_ARCH_TRACEHOOK for all SH, now that SH-5 supports it too.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:04 +09:00
Paul Mundt dd76279b47 sh: Provide linux/regset.h interface for SH-5.
Plugs in general and FPU regsets.

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

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:04 +09:00
Paul Mundt f15b2dc02f sh: Fix up syscall_get_nr() comment in syscall_32.h.
Residual copy-and-paste damage, fix it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:04 +09:00
Paul Mundt 35724a0aed sh: Fix up the cpu_asid() return value on nommu.
This ought to be unsigned long, rather than defaulting to int.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:03 +09:00
Paul Mundt 06be372454 sh: Fix an off-by-1 check in __mutex_fastpath_unlock().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:44:02 +09:00
Paul Mundt 77ba93a7ac sh: Fix up the SH-4A mutex fastpath semantics.
This fixes up the __mutex_fastpath_xxx() routines to match the semantics
noted in the comment. Previously these were looping rather than doing a
single-pass, which is counter-intuitive, as the slow path takes care of
the looping for us in the event of contention.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:52 +09:00
Magnus Damm 3e51762759 sh: move the hp6xx pm code
Move the not-so-generic pm code from arch/sh/kernel/pm.c to the
platform directory together with the rest of the hp6xx pm code.

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

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:52 +09:00
Magnus Damm 21c601bb2e sh: remove ioport cruft and smc91x from se7343
Remove out-of-date se7343 ioport code including some old support
for unknown-ne2000-pcmcia-card, cf-over-pcmcia and a mysterical
smc91x that once must have been on a special daughterboard.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:51 +09:00
Magnus Damm 6aacba72db sh: add st16c2550 devices to se7343
Add 8250 platform data to setup the ST16C2550C chip on se7343.

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

Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:50 +09:00
Paul Mundt 22f131aa8d sh: Provide a dyn_arch_ftrace struct definition.
Needed for dynamic ftrace API changes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:50 +09:00
Paul Mundt eb67cf14ae sh: Consolidate cpu_relax()/cpu_sleep() definitions across _32/_64.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:50 +09:00
Paul Mundt 9cfc9a9b6f sh: Add a simple code dumper for SUPERH32 show_regs().
This implements a simple show_code() that is in turn plugged in to
show_regs() to provide minimal code dumping at the end of the trace.

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

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:49 +09:00
Paul Mundt 95b781c239 sh: Provide optimized unaligned loads on SH-4A.
This adds support for unaligned loads on SH-4A, using the SH-4A's
neutered movua.l instruction. As movua.l is r0-inspired, stores are
still handled through the packed struct.

Based on asm-generic/unaligned.h by Harvey Harrison.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:48 +09:00
Magnus Damm 716777db72 sh: P4 ioremap pass-through
This patch adds a pass-through case when ioremapping P4 addresses.

Addresses passed to ioremap() should be physical addresses, so the
best option is usually to convert the virtual address to a physical
address before calling ioremap. This will give you a virtual address
in P2 which matches the physical address and this works well for
most internal hardware blocks on the SuperH architecture.

However, some hardware blocks must be accessed through P4. Converting
the P4 address to a physical and then back to a P2 does not work. One
example of this is the sh7722 TMU block, it must be accessed through P4.

Without this patch P4 addresses will be mapped using PTEs which
requires the page allocator to be up and running.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:48 +09:00
Michael Trimarchi 0c9122323a sh: Add SH-4A optimized fastpath mutex implementation.
Add fast mutex path implementation for the SH4A architecture

Signed-off-by: Michael Trimarchi <trimarchimichael@yahoo.it>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:55 +09:00
Steve Glendinning 8085ac7531 sh: Add platform-specific constants for SH7709
I'm using these constants in support of an in-house development board,
and thought they may be useful to other users of SH7709.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:54 +09:00
Paul Mundt 0d5bbe0bc2 sh: Provide optimized non-atomic bitops for SH-2A.
This ties in the new SH-2A 32-bit non-atomic bitops.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:54 +09:00
Paul Mundt 16b529d1d7 sh: Convert to generic bitops for IRQ-toggling implementation.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:53 +09:00
Matt Fleming fad57feba7 sh: dynamic ftrace support.
First cut at dynamic ftrace support.

Signed-off-by: Matt Fleming <mjf@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:52 +09:00
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
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
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 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 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
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
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
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 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 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
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 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 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