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Commit Graph

160 Commits

Author SHA1 Message Date
Jiri Slaby
0624517d80 forbid asm/bitops.h direct inclusion
forbid asm/bitops.h direct inclusion

Because of compile errors that may occur after bit changes if asm/bitops.h is
included directly without e.g.  linux/kernel.h which includes linux/bitops.h,
forbid direct inclusion of asm/bitops.h.  Thanks to Adrian Bunk.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:41 -07:00
Benjamin Herrenschmidt
1c7037db50 remove unused flush_tlb_pgtables
Nobody uses flush_tlb_pgtables anymore, this patch removes all remaining
traces of it from all archs.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:34 -07:00
Nick Piggin
26333576fd bitops: introduce lock ops
Introduce test_and_set_bit_lock / clear_bit_unlock bitops with lock semantics.
Convert all architectures to use the generic implementation.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-By: David Howells <dhowells@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Richard Curnow <rc@rc0.org.uk>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Cc: Andi Kleen <ak@muc.de>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 14:37:29 -07:00
Ralf Baechle
622a9edd91 Remove dma_cache_(wback|inv|wback_inv) functions
dma_cache_(wback|inv|wback_inv) were the earliest attempt on a generalized
cache managment API for I/O purposes.  Originally it was basically the raw
MIPS low level cache API exported to the entire world.  The API has
suffered from a lack of documentation, was not very widely used unlike it's
more modern brothers and can easily be replaced by dma_cache_sync.  So
remove it rsp.  turn the surviving bits back into an arch private API, as
discussed on linux-arch.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:57 -07:00
Olaf Hering
68a9bd0cd5 remove strict ansi check from __u64 in asm/types.h
Remove the __STRICT_ANSI__ check from the __u64/__s64 declaration on
32bit targets.

GCC can be made to warn about usage of long long types with ISO C90
(-ansi), but only with -pedantic.  You can write this in a way that even
then it doesn't cause warnings, namely by:

#ifdef __GNUC__
__extension__ typedef __signed__ long long __s64;
__extension__ typedef unsigned long long __u64;
#endif

The __extension__ keyword in front of this switches off any pedantic
warnings for this expression.

Signed-off-by: Olaf Hering <olh@suse.de>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:53 -07:00
Christoph Hellwig
04fc8bbcf5 kill DECLARE_MUTEX_LOCKED
DECLARE_MUTEX_LOCKED was used for semaphores used as completions and we've
got rid of them.  Well, except for one in libusual that the maintainer
explicitly wants to keep as semaphore.  So convert that useage to an
explicit sema_init and kill of DECLARE_MUTEX_LOCKED so that new code is
reminded to use a completion.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: "Satyam Sharma" <satyam.sharma@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:47 -07:00
Masami Hiramatsu
f438d914b2 kprobes: support kretprobe blacklist
Introduce architecture dependent kretprobe blacklists to prohibit users
from inserting return probes on the function in which kprobes can be
inserted but kretprobes can not.

This patch also removes "__kprobes" mark from "__switch_to" on x86_64 and
registers "__switch_to" to the blacklist on x86-64, because that mark is to
prohibit user from inserting only kretprobe.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:43:10 -07:00
Christoph Hellwig
74a0b57627 x86: optimize page faults like all other achitectures and kill notifier cruft
x86(-64) are the last architectures still using the page fault notifier
cruft for the kprobes page fault hook.  This patch converts them to the
proper direct calls, and removes the now unused pagefault notifier bits
aswell as the cruft in kprobes.c that was related to this mess.

I know Andi didn't really like this, but all other architecture maintainers
agreed the direct calls are much better and besides the obvious cruft
removal a common way of dealing with kprobes across architectures is
important aswell.

[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: fix sparc64]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Andi Kleen <ak@suse.de>
Cc: <linux-arch@vger.kernel.org>
Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:50 -07:00
Haavard Skinnemoen
bb7aa6d47f [AVR32] Don't use __builtin_xchg()
The implementation of __builtin_xchg() in at least some versions of
avr32 gcc is buggy. Rather than find out exactly which versions that
have this bug, let's just avoid the problem altogether by implementing
xchg() in inline assembly.

Also, in most architectures, xchg() seems to imply a memory barrier,
while the existing avr32 implementation did not. This patch also fixes
that discrepancy.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-10-11 13:32:56 +02:00
Haavard Skinnemoen
a7ff43b808 [AVR32] Ignore a few irrelevant syscalls
Ignore a few syscalls that are irrelevant because they're either old,
depends on NUMA or depends on SMP.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-10-11 13:32:55 +02:00
Kristoffer Nyborg Gregertsen
af8184718a [AVR32] SMC configuration in clock cycles
This patch makes the SMC configuration take timings in clock cycles
instead of nanoseconds. A function to calculate timings in clock
cycles is added.

This patch removes the rounding troubles of the previous SMC
configuration method.

[hskinnemoen@atmel.com: fix atstk1002/atngw100 flash config]
Signed-off-by: Kristoffer Nyborg Gregertsen <gregerts@stud.ntnu.no>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-10-11 13:32:49 +02:00
Haavard Skinnemoen
b5a8e7362a [AVR32] Make dma_sync_*_for_cpu no-ops
I don't think the dma_sync_*_for_cpu ever did anything useful. We
flush the relevant cache lines when mapping the buffer or when calling
dma_sync_*_for_device(), and the CPU isn't allowed to touch the buffer
after that.

In other words, if these functions actually have anything to flush
from the caches, we're already in trouble.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-10-11 12:16:57 +02:00
Haavard Skinnemoen
6fcf061511 [AVR32] Wire up USBA device
Implement at32_add_device_usba() and use it to wire up the USBA device
on ATSTK1000 and ATNGW100.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-10-11 11:40:27 +02:00
Matteo Vit
7808fa4853 [AVR32] add multidrive support for pio driver
This patch add multidrive support for pio driver

Signed-off-by: Matteo Vit - Dave S.r.l. <matteo.vit@dave.eu>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-10-11 11:38:41 +02:00
Haavard Skinnemoen
cca67164bb [AVR32] Define mmiowb()
Add empty definition of mmiowb() since some drivers need it. Uncached
writes are strongly ordered on AVR32. They may be delayed if the
dcache is busy doing a writeback, but AFAICT that's not what this
macro is supposed to deal with, at least on UP systems.

We might have to revisit this definition when a SMP-capable AVR32 CPU
comes along, depending on how the busses and cache coherency stuff
end up being implemented.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-08-15 16:36:56 +02:00
Haavard Skinnemoen
6f834197a7 [AVR32] Fix bogus pte_page() definition
The current definition of pte_page() masks out valid bits from the
physical address, causing vmalloc_to_page() to misbehave. This may
lead to everything from mmap() silently accessing the wrong data to
"invalid pte" errors dumped by the kernel.

Also remove the now-unused definition of PTE_PHYS_MASK.

Thanks to Matteo Vit for discovering this bug.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-08-15 16:36:56 +02:00
Haavard Skinnemoen
e7f3bac95e [AVR32] Simplify pte_alloc_one{,_kernel}
There's really no need to retry an allocation with __GFP_REPEAT set.
Also, use get_zeroed_page() and __GFP_ZERO to eliminate the extra call
to clear_page() afterwards.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-08-15 16:36:56 +02:00
Mariusz Kozlowski
5221b34edf include/asm-avr32/pgalloc.h: kmalloc + memset conversion to kcalloc
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-08-15 16:36:56 +02:00
Heiko Carstens
fd0cbdd378 Fix WARN_ON() on bitfield ops for all other archs
Fixes WARN_ON() on bitfiels ops for all architectures that have
been left out in 8d4fbcfbe0.

Cc: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-01 20:45:38 -07:00
Stephane Eranian
a583f1b542 remove unused TIF_NOTIFY_RESUME flag
Remove unused TIF_NOTIFY_RESUME flag for all processor architectures.  The
flag was not used excecpt on IA-64 where the patch replaces it with
TIF_PERFMON_WORK.

Signed-off-by: stephane eranian <eranian@hpl.hp.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:38 -07:00
Peter Zijlstra
b111757c50 arch: personality independent stack top
New arch macro STACK_TOP_MAX it gives the larges valid stack address for the
architecture in question.

It differs from STACK_TOP in that it will not distinguish between
personalities but will always return the largest possible address.

This is used to create the initial stack on execve, which we will move down to
the proper location once the binfmt code has figured out where that is.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ollie Wild <aaw@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:45 -07:00
Haavard Skinnemoen
3da86ee4f1 [AVR32] Fix atomic_add_unless() and atomic_sub_unless()
These functions depend on "result" being initalized to 0, but "result"
is not included as an input constraint to the inline assembly block
following its initialization, only as an output constraint. Thus gcc
thinks it doesn't need to initialize it, so result ends up undefined
if the "unless" condition is true.

This fixes an oops in sunrpc where the faulty atomics caused
rpciod_up() to not start the workqueue as it should.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-07-18 20:47:04 +02:00
Hans-Christian Egtvedt
9cf6cf58d0 [AVR32] Add Atmel SSC driver platform device to AT32AP architecture
This patch adds register definitions, clocks and IRQs to the platform devices.

Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-07-18 20:45:52 +02:00
Haavard Skinnemoen
e122eaf694 [AVR32] Remove optimization of unaligned word loads
If we let unaligned word loads bypass the generic unaligned handling,
gcc may combine it with a swap.b instruction and turn it into a ldwsp
instruction, which does not work with unaligned addresses.

Revert the optimization to prevent the RNDIS driver from crashing.
Hopefully we'll figure something out later (it may be better to do the
optimization in gcc.)

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-07-18 20:45:51 +02:00
Haavard Skinnemoen
7a5b805907 [AVR32] Split SM device into PM, RTC, WDT and EIC
Split the SM platform device into separate platform devices for PM,
RTC, WDT and EIC. This is more correct according to the documentation
and allows us to simplify the code a little.

Also turn the EIC driver into a real platform driver.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
2007-07-18 20:45:51 +02:00
David Brownell
c6083cd61b [AVR32] faster avr32 unaligned access
Use a more conventional implementation for unaligned access, and include
an AT32AP-specific optimization:  the CPU will handle unaligned words.

The result is always faster and smaller for 8, 16, and 32 bit values.
For 64 bit quantities, it's presumably larger.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-07-18 20:45:50 +02:00
Antonino A. Daplas
317b3c2167 fbdev: detect primary display device
Add function helper, fb_is_primary_device().  Given struct fb_info, it will
return a nonzero value if the device is the primary display.

Currently, only the i386 is supported where the function checks for the
IORESOURCE_ROM_SHADOW flag.

Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:11 -07:00
Antonino A. Daplas
10eb2659cc fbdev: move arch-specific bits to their respective subdirectories
Move arch-specific bits of fb_mmap() to their respective subdirectories

[bob.picco@hp.com: efi_range_is_wc is referenced but not declared]
[bunk@stusta.de: fix include/asm-m68k/fb.h]
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:11 -07:00
Linus Torvalds
1f1c2881f6 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (37 commits)
  forcedeth bug fix: realtek phy
  forcedeth bug fix: vitesse phy
  forcedeth bug fix: cicada phy
  atl1: reorder atl1_main functions
  atl1: fix excessively indented code
  atl1: cleanup atl1_main
  atl1: header file cleanup
  atl1: remove irq_sem
  cdc-subset to support new vendor/product ID
  8139cp: implement the missing dev->tx_timeout
  myri10ge: Remove nonsensical limit in the tx done routine
  gianfar: kill unused header
  EP93XX_ETH must select MII
  macb: Add multicast capability
  macb: Use generic PHY layer
  s390: add barriers to qeth driver
  s390: scatter-gather for inbound traffic in qeth driver
  eHEA: Introducing support vor DLPAR memory add
  Fix a potential NULL pointer dereference in free_shared_mem() in drivers/net/s2io.c
  [PATCH] softmac: Fix ESSID problem
  ...
2007-07-16 17:48:54 -07:00
frederic RODO
6c36a70744 macb: Use generic PHY layer
Convert the macb driver to use the generic PHY layer in
drivers/net/phy.

Signed-off-by: Frederic RODO <f.rodo@til-technologies.fr>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-16 18:28:04 -04:00
Jan Beulich
45e98cdb6d page table handling cleanup
Kill pte_rdprotect(), pte_exprotect(), pte_mkread(), pte_mkexec(), pte_read(),
pte_exec(), and pte_user() except where arch-specific code is making use of
them.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:36 -07:00
Alan Cox
4eb6bf6bfb lots-of-architectures: enable arbitary speed tty support
Add the termios2 structure ready for enabling on most platforms.  One or
two like Sparc are plain weird so have been left alone.  Most can use the
same structure as ktermios for termios2 (ie the newer ioctl uses the
structure matching the current kernel structure)

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: Ian Molton <spyro@f2s.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Mikael Starvik <starvik@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Richard Curnow <rc@rc0.org.uk>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-10 17:51:13 -07:00
Haavard Skinnemoen
093d0faf57 [AVR32] Define ARCH_KMALLOC_MINALIGN to L1_CACHE_BYTES
This allows SLUB debugging to be used without fear of messing up DMA
transfers. SPI is one example that easily breaks without this patch.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-06-14 18:30:50 +02:00
David Brownell
2ae795b02a [AVR32] gpio_*_cansleep() fix
The AVR32 <asm/gpio.h> was missing the gpio_*_cansleep() calls,
breaking compilation for some code using them.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-06-14 18:30:49 +02:00
Haavard Skinnemoen
d0a2b7af27 [AVR32] Implement platform hooks for atmel_lcdfb driver
This modifies and extends the existing lcdc platform code to support
the new atmel_lcdfb driver. The ATSTK1000 board code is set up to use
the on-board Samsung LTV350QV LCD panel.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-05-15 14:13:27 +02:00
Haavard Skinnemoen
78c129b949 [AVR32] Wire up signalfd, timerfd and eventfd
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-05-13 17:07:57 +02:00
Christoph Hellwig
9caebec7b8 [AVR32] optimize pagefault path
Avoid the costly notifier list in the pagefault path and call
the kprobes code directly.  The same change went into the 2.6.22
cycle for powerpc, 2s390 and sparc64 already.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-05-13 17:07:46 +02:00
Linus Torvalds
f7d02ae76e Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (30 commits)
  [ARM] Use new get_irqnr_preamble
  [ARM] Ensure machine class menu is sorted alphabetically
  [ARM] 4333/2: KS8695: Micrel Development board
  [ARM] 4332/2: KS8695: Serial driver
  [ARM] 4331/3: Support for Micrel/Kendin KS8695 processor
  [ARM] 4371/1: AT91: Support for Atmel AT91SAM9RL-EK development board
  [ARM] 4372/1: Define byte sizes in asm-arm/sizes.h
  [ARM] 4370/3: AT91: Support for Atmel AT91SAM9RL processors.
  [ARM] Update mach-types
  [ARM] export symbol csum_partial_copy_from_user
  [ARM] iop13xx: msi support
  [ARM] stacktrace fix
  [ARM] Spinlock initializer cleanup
  [ARM] remove useless config option GENERIC_BUST_SPINLOCK
  [ARM] 4303/3: base kernel support for TI DaVinci
  [ARM] 4369/1: AT91: Fix circular dependency in header files
  [ARM] 4368/1: S3C24xx: build fix
  [ARM] 4364/1: AT91: LEDS on AT91SAM9261-EK
  [ARM] Fix iop32x/iop33x build
  [ARM] EBSA110: fix build errors caused by missing "const"
  ...
2007-05-12 18:11:33 -07:00
Andrew Victor
877d7720f5 [ARM] 4370/3: AT91: Support for Atmel AT91SAM9RL processors.
Add support for Atmel's new AT91SAM9RL range of processors.
Includes similar peripherals as other AT91SAM9 processors, but with a
High-speed USB controller and various sizes of internal SRAM.

Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-11 21:07:54 +01:00
Stephen Rothwell
04dd08b45b Consolidate asm/poll.h
These files are almost all the same.

This patch could be made even simpler if we don't mind POLLREMOVE turning
up in a few architectures that didn't have it previously (which should be
OK as POLLREMOVE is not used anywhere in the current tree).

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-11 08:29:34 -07:00
Linus Torvalds
3960208f9c Merge branch 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32
* 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32:
  [AVR32] Wire up sys_utimensat
  [AVR32] Fix section mismatch .taglist -> .init.text
  [AVR32] Implement dma_{alloc,free}_writecombine()
  AVR32: Spinlock initializer cleanup
  [AVR32] Use correct config symbol when setting cpuflags
2007-05-09 12:50:25 -07:00
Haavard Skinnemoen
e7498281d3 Use common cpu_is_xxx() macros on AT91 and AVR32
Several drivers shared between AT91 and AVR32 chips use cpu_is_xxx()
to handle CPU-specific differences. Currently, such code needs to be
inside #ifdef CONFIG_ARCH_AT91 because the macros don't exist on AVR32.

By defining the same macros on both AT91 and AVR32, these #ifdefs can
be eliminated. Since the macros will evaluate to a constant value for
CPUs that aren't supported by the current architecture, any code that
is only needed on AT91 will be optimized away on AVR32 and vice versa.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Andrew Victor <andrew@sanpeople.com>
Cc: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09 12:30:50 -07:00
Haavard Skinnemoen
47cc3e7804 [AVR32] Wire up sys_utimensat
Tested with a slightly hacked version of the test case included with
the original utimensat patch. All OK.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-05-09 10:23:11 +02:00
Haavard Skinnemoen
b3cfe0cb37 [AVR32] Fix section mismatch .taglist -> .init.text
Rename .taglist to .taglist.init to silence section mismatch warnings.
The .taglist.init section was already placed in the .init output
section along with .init.text, so the warning didn't indicate any real
problems.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-05-09 09:26:18 +02:00
David Gibson
0bb5e19d63 Clean up mostly unused IOSPACE macros
Most architectures defined three macros, MK_IOSPACE_PFN(), GET_IOSPACE()
and GET_PFN() in pgtable.h.  However, the only callers of any of these
macros are in Sparc specific code, either in arch/sparc, arch/sparc64 or
drivers/sbus.

This patch removes the redundant macros from all architectures except
sparc and sparc64.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:13 -07:00
Christoph Hellwig
1eeb66a1bb move die notifier handling to common code
This patch moves the die notifier handling to common code.  Previous
various architectures had exactly the same code for it.  Note that the new
code is compiled unconditionally, this should be understood as an appel to
the other architecture maintainer to implement support for it aswell (aka
sprinkling a notify_die or two in the proper place)

arm had a notifiy_die that did something totally different, I renamed it to
arm_notify_die as part of the patch and made it static to the file it's
declared and used at.  avr32 used to pass slightly less information through
this interface and I brought it into line with the other architectures.

[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: fix vmalloc_sync_all bustage]
[bryan.wu@analog.com: fix vmalloc_sync_all in nommu]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: <linux-arch@vger.kernel.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
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
Linus Torvalds
ea62ccd00f Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (231 commits)
  [PATCH] i386: Don't delete cpu_devs data to identify different x86 types in late_initcall
  [PATCH] i386: type may be unused
  [PATCH] i386: Some additional chipset register values validation.
  [PATCH] i386: Add missing !X86_PAE dependincy to the 2G/2G split.
  [PATCH] x86-64: Don't exclude asm-offsets.c in Documentation/dontdiff
  [PATCH] i386: avoid redundant preempt_disable in __unlazy_fpu
  [PATCH] i386: white space fixes in i387.h
  [PATCH] i386: Drop noisy e820 debugging printks
  [PATCH] x86-64: Fix allnoconfig error in genapic_flat.c
  [PATCH] x86-64: Shut up warnings for vfat compat ioctls on other file systems
  [PATCH] x86-64: Share identical video.S between i386 and x86-64
  [PATCH] x86-64: Remove CONFIG_REORDER
  [PATCH] x86-64: Print type and size correctly for unknown compat ioctls
  [PATCH] i386: Remove copy_*_user BUG_ONs for (size < 0)
  [PATCH] i386: Little cleanups in smpboot.c
  [PATCH] x86-64: Don't enable NUMA for a single node in K8 NUMA scanning
  [PATCH] x86: Use RDTSCP for synchronous get_cycles if possible
  [PATCH] i386: Add X86_FEATURE_RDTSCP
  [PATCH] i386: Implement X86_FEATURE_SYNC_RDTSC on i386
  [PATCH] i386: Implement alternative_io for i386
  ...

Fix up trivial conflict in include/linux/highmem.h manually.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-05 14:55:20 -07:00
Jean Delvare
a9dfd281a7 PCI: scatterlist.h needs types.h
Most architectures' scatterlist.h use the type dma_addr_t, but omit to
include <asm/types.h> which defines it.  This could lead to build failures,
so let's add the missing includes.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-02 19:02:34 -07:00
Jeremy Fitzhardinge
d6dd61c831 [PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction
Add hooks to allow a paravirt implementation to track the lifetime of
an mm.  Paravirtualization requires three hooks, but only two are
needed in common code.  They are:

arch_dup_mmap, which is called when a new mmap is created at fork

arch_exit_mmap, which is called when the last process reference to an
  mm is dropped, which typically happens on exit and exec.

The third hook is activate_mm, which is called from the arch-specific
activate_mm() macro/function, and so doesn't need stub versions for
other architectures.  It's called when an mm is first used.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: linux-arch@vger.kernel.org
Cc: James Bottomley <James.Bottomley@SteelEye.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
2007-05-02 19:27:14 +02:00
Linus Torvalds
15c5403396 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (448 commits)
  [IPV4] nl_fib_lookup: Initialise res.r before fib_res_put(&res)
  [IPV6]: Fix thinko in ipv6_rthdr_rcv() changes.
  [IPV4]: Add multipath cached to feature-removal-schedule.txt
  [WIRELESS] cfg80211: Clarify locking comment.
  [WIRELESS] cfg80211: Fix locking in wiphy_new.
  [WEXT] net_device: Don't include wext bits if not required.
  [WEXT]: Misc code cleanups.
  [WEXT]: Reduce inline abuse.
  [WEXT]: Move EXPORT_SYMBOL statements where they belong.
  [WEXT]: Cleanup early ioctl call path.
  [WEXT]: Remove options.
  [WEXT]: Remove dead debug code.
  [WEXT]: Clean up how wext is called.
  [WEXT]: Move to net/wireless
  [AFS]: Eliminate cmpxchg() usage in vlocation code.
  [RXRPC]: Fix pointers passed to bitops.
  [RXRPC]: Remove bogus atomic_* overrides.
  [AFS]: Fix u64 printing in debug logging.
  [AFS]: Add "directory write" support.
  [AFS]: Implement the CB.InitCallBackState3 operation.
  ...
2007-04-27 09:26:46 -07:00
Haavard Skinnemoen
8224ca1958 [AVR32] Fix compile error with gcc 4.1
gcc 4.1 doesn't seem to like const variables as inline assembly
outputs. Drop support for reading 64-bit values using get_user() so
that we can use an unsigned long to hold the result regardless of the
actual size. This should be safe since many architectures, including
i386, doesn't support reading 64-bit values with get_user().

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 14:21:47 +02:00
Mathieu Desnoyers
a4022b0d60 avr32: remove unneeded cast in atomic.h
This int cast is superfluous since system.h cmpxchg already casts it in
(typeof(*(ptr))).

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:54:02 +02:00
Haavard Skinnemoen
2c1a2a3441 [AVR32] Use memcpy/memset in memcpy_{from,to}_io and memset_io
Using readb/writeb to implement these breaks NOR flash support. I
can't see any reason why regular memcpy and memset shouldn't work.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:44:15 +02:00
Haavard Skinnemoen
d80e2bb126 [AVR32] Get rid of board_setup_fbmem()
Since the core setup code takes care of both allocation and
reservation of framebuffer memory, there's no need for this board-
specific hook anymore. Replace it with two global variables,
fbmem_start and fbmem_size, which can be used directly.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:44:15 +02:00
Haavard Skinnemoen
d8011768e6 [AVR32] Simplify early handling of memory regions
Use struct resource to specify both physical memory regions and
reserved regions and push everything into the same framework,
including kernel code/data and initrd memory. This allows us to get
rid of many special cases in the bootmem initialization and will also
make it easier to implement more robust handling of framebuffer
memory later.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:44:14 +02:00
Haavard Skinnemoen
5539f59ac4 [AVR32] Move setup_bootmem() from mm/init.c to kernel/setup.c
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:44:14 +02:00
Haavard Skinnemoen
e3e7d8d4ea [AVR32] Make I/O access macros work with external devices
Fix the I/O access macros so that they work with externally connected
devices accessed in little-endian mode over any bus width:

* Use a set of macros to define I/O port- and memory operations
  borrowed from MIPS.
* Allow subarchitecture to specify address- and data-mangling
* Implement at32ap-specific port mangling (with build-time
  configurable bus width. Only one bus width at a time supported
  for now.)
* Rewrite iowriteN and friends to use write[bwl] and friends
  (not the __raw counterparts.)

This has been tested using pata_pcmcia to access a CompactFlash card
connected to the EBI (16-bit bus width.)

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:44:14 +02:00
Haavard Skinnemoen
623b0355d5 [AVR32] Clean up exception handling code
* Use generic BUG() handling
  * Remove some useless debug statements
  * Use a common function _exception() to send signals or oops when
    an exception can't be handled. This makes sure init doesn't
    enter an infinite exception loop as well. Borrowed from powerpc.
  * Add some basic exception tracing support to the page fault code.
  * Rework dump_stack(), show_regs() and friends and move everything
    into process.c
  * Print information about configuration options and chip type when
    oopsing

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:44:13 +02:00
Haavard Skinnemoen
3b328c9809 [AVR32] Clean up cpu identification and add features bitmap
Clean up the cpu identification code, using definitions from
<asm/sysreg.h> instead of hardcoded constants. Also, add a features
bitmap to struct avr32_cpuinfo to allow other code to make decisions
based upon what the running cpu is actually capable of.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:44:13 +02:00
Haavard Skinnemoen
535c806c26 [AVR32] Clean up asm/sysreg.h
Fix indentation and remove spurious comments in asm-avr32/sysreg.h

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:44:13 +02:00
Hans-Christian Egtvedt
19b7ce8bad [AVR32] Put cpu in sleep 0 when idle.
This patch puts the CPU in sleep 0 when doing nothing, idle. This will
turn of the CPU clock and thus save power. The CPU is waken again when
an interrupt occurs.

Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:44:12 +02:00
Hans-Christian Egtvedt
7760989e5e [AVR32] Change system timer from count-compare to Timer/Counter 0
Due to limitation of the count-compare system timer (not able to
count when CPU is in sleep), the system timer had to be changed to
use a peripheral timer/counter.

The old COUNT-COMPARE code is still present in time.c as weak
functions. The new timer is added to the architecture directory.

This patch sets up TC0 as system timer The new timer has been tested
on AT32AP7000/ATSTK1000 at 100 Hz, 250 Hz, 300 Hz and 1000 Hz.

For more details about the timer/counter see the datasheet for
AT32AP700x available at

http://www.atmel.com/dyn/products/product_card.asp?part_id=3903

Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:44:12 +02:00
Hans-Christian Egtvedt
068d9f6eb9 [AVR32] Add nwait and tdf parameters to SMC configuration
Complete the SMC configuration code by adding nwait and tdf
parameter. After this change, we support the same parameters as the
hardware.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-04-27 13:43:27 +02:00
Eric Dumazet
92f37fd2ee [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support
Now that network timestamps use ktime_t infrastructure, we can add a new
SOL_SOCKET sockopt  SO_TIMESTAMPNS.

This command is similar to SO_TIMESTAMP, but permits transmission of
a 'timespec struct' instead of a 'timeval struct' control message.
(nanosecond resolution instead of microsecond)

Control message is labelled SCM_TIMESTAMPNS instead of SCM_TIMESTAMP

A socket cannot mix SO_TIMESTAMP and SO_TIMESTAMPNS : the two modes are
mutually exclusive.

sock_recv_timestamp() became too big to be fully inlined so I added a
__sock_recv_timestamp() helper function.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
CC: linux-arch@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:21 -07:00
Eric Dumazet
ae40eb1ef3 [NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution
Now network timestamps use ktime_t infrastructure, we can add a new
ioctl() SIOCGSTAMPNS command to get timestamps in 'struct timespec'.
User programs can thus access to nanosecond resolution.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
CC: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:04 -07:00
David Brownell
28735a7253 [PATCH] gpio_direction_output() needs an initial value
It's been pointed out that output GPIOs should have an initial value, to
avoid signal glitching ...  among other things, it can be some time before
a driver is ready.  This patch corrects that oversight, fixing

 - documentation
 - platforms supporting the GPIO interface
 - users of that call (just one for now, others are pending)

There's only one user of this call for now since most platforms are still
using non-generic GPIO setup code, which in most cases already couples the
initial value with its "set output mode" request.

Note that most platforms are clear about the hardware letting the output
value be set before the pin direction is changed, but the s3c241x docs are
vague on that topic ...  so those chips might not avoid the glitches.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Andrew Victor <andrew@sanpeople.com>
Acked-by: Milan Svoboda <msvoboda@ra.rockwell.com>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16 19:25:04 -07:00
Gary Zambrano
a9e28d9b0b avr32: dma-mapping.h
Added dma_sync_single_range_for_cpu/device to dma-mapping.h in asm-avr32 to
call dma_sync_single_for_cpu/device.  This patch enables b44 to compile on
systems with these cpus.  This patch was created with the assumption that
another method of dma_sync_single_range_for_cpu/device does not exist on these
architectures.

Signed-off by: Gary Zambrano <zambrano@broadcom.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-03-07 10:50:30 +01:00
Haavard Skinnemoen
bfa4f55cc8 [AVR32] Fix typo in include/asm-avr32/Kbuild
It's header-y, not headers-y.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-03-07 10:50:27 +01:00
Linus Torvalds
59b8175c77 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (117 commits)
  [ARM] 4058/2: iop32x: set ->broken_parity_status on n2100 onboard r8169 ports
  [ARM] 4140/1: AACI stability add ac97 timeout and retries
  [ARM] 4139/1: AACI record support
  [ARM] 4138/1: AACI: multiple channel support for IRQ handling
  [ARM] 4211/1: Provide a defconfig for ns9xxx
  [ARM] 4210/1: base for new machine type "NetSilicon NS9360"
  [ARM] 4222/1: S3C2443: Remove reference to missing S3C2443_PM
  [ARM] 4221/1: S3C2443: DMA support
  [ARM] 4220/1: S3C24XX: DMA system initialised from sysdev
  [ARM] 4219/1: S3C2443: DMA source definitions
  [ARM] 4218/1: S3C2412: fix CONFIG_CPU_S3C2412_ONLY wrt to S3C2443
  [ARM] 4217/1: S3C24XX: remove the dma channel show at startup
  [ARM] 4090/2: avoid clash between PXA and SA1111 defines
  [ARM] 4216/1: add .gitignore entries for ARM specific files
  [ARM] 4214/2: S3C2410: Add Armzone QT2410
  [ARM] 4215/1: s3c2410 usb device:  per-platform vbus_draw
  [ARM] 4213/1: S3C2410 - Update definition of ADCTSC_XY_PST
  [ARM] 4098/1: ARM: rtc_lock only used with rtc_cmos
  [ARM] 4137/1: Add kexec support
  [ARM] 4201/1: SMP barriers pair needed for the secondary boot process
  ...

Fix up conflict due to typedef removal in sound/arm/aaci.h
2007-02-19 13:18:39 -08:00
Haavard Skinnemoen
41d8ca452f [AVR32] Use per-controller spi_board_info structures
Set up one spi_board_info array per controller and pass this to
at32_add_device_spi so that it can set up any GPIO pins for chip
selects based on this information.

Extracted from a patch by David Brownell and adapted slightly.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-02-16 14:01:40 +01:00
Haavard Skinnemoen
1a6f1436d5 [AVR32] Wire up the SysV IPC calls properly
Wire up the individual sysvipc system calls and remove sys_ipc.
Strictly speaking, this breaks the ABI, but since sys_ipc never
worked anyway due to a silly bug, it isn't actually a regression.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-02-16 12:54:44 +01:00
Haavard Skinnemoen
2201ec2b10 [AVR32] Define ioremap_nocache, ioport_map and ioport_unmap
These are all defined in terms of ioremap/iounmap since port I/O
isn't really different from memory-mapped I/O on AVR32.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-02-16 12:53:57 +01:00
Haavard Skinnemoen
b60f16eb56 [AVR32] Fix prototypes for __raw_writesb and friends
The first parameter to __raw_writes[bwl] and __raw_reads[bwl] should
be a void __iomem *, not unsigned long.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-02-16 12:47:40 +01:00
Tilman Schmidt
4564f9e5fd [PATCH] consolidate line discipline number definitions
The line discipline numbers N_* are currently defined for each architecture
individually, but (except for a seeming mistake) identically, in
asm/termios.h.  There is no obvious reason why these numbers should be
architecture specific, nor any apparent relationship with the termios
structure.  The total number of these, NR_LDISCS, is defined in linux/tty.h
anyway.  So I propose the following patch which moves the definitions of
the individual line disciplines to linux/tty.h too.

Three of these numbers (N_MASC, N_PROFIBUS_FDL, and N_SMSBLOCK) are unused
in the current kernel, but the patch still keeps the complete set in case
there are plans to use them yet.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:26 -08:00
Haavard Skinnemoen
a3b0277d1c [AVR32] ssize_t should be long, not int
Since size_t is defined as unsigned long, ssize_t ought to be long
and not int. It could have been the other way around, but gcc defines
size_t as unsigned long, so this is correct.

This fixes a couple of printk format warnings.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-02-09 15:01:59 +01:00
Haavard Skinnemoen
7f9f467863 [AVR32] Add PIOE device and reserve SDRAM pins
The PIOE device was left out before because it muxes SDRAM pins (and
is therefore a bit dangerous to mess with) and because no existing
drivers had any use for it.

It is needed for CompactFlash, however, and now that we have a way
to protect the SDRAM pins, it can be safely added.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-02-09 15:01:58 +01:00
Haavard Skinnemoen
e7f70b8cc6 [AVR32] Introduce at32_reserve_pin()
at32_reserve_pin() can be used for reserving portmux pins without
altering their configuration. Useful for e.g. SDRAM pins where we
really don't want to change the bootloader-provided configuration.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-02-09 15:01:58 +01:00
Haavard Skinnemoen
6a4e5227a3 [AVR32] GPIO API implementation
Arch-neutral GPIO calls for AVR32. GPIO IRQ support written by
David Brownell.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-02-09 15:01:58 +01:00
Haavard Skinnemoen
6eb484fe92 [AVR32] Implement dma_mapping_error()
dma_map_single() never fails, so dma_mapping_error() simply returns 0.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-02-09 15:01:57 +01:00
Robert P. J. Day
31321bc946 Remove a couple final references to obsolete verify_area().
Remove a couple final references to the obsolete verify_area() call,
which was long ago replaced by access_ok().

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-02-09 15:01:56 +01:00
Andrew Victor
93a3ddc201 [ARM] 4151/1: AT91 / AVR32: Move at91_pdc.h to linux/atmel_pdc.h
The Atmel AT91 and AVR32 processor architectures share many of the same
peripherals.  The PDC (Peripheral Data Controller) registers are also
implemented within in a number of the on-chip peripherals (eg, USART,
MMC, SPI, SSC, etc).

In a attempt not to duplicate the register definitions in each
peripheral, or in each architecture, the at91_pdc.h header in
asm-arm/arch-at91 and asm-avr32/arch-at32ap has been replaced with
linux/atmel_pdc.h.

The definitions have also been renamed from AT91_PDC_* to ATMEL_PDC_*,
and the drivers updated accordingly.

Original patch from Nicolas Ferre.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-08 15:13:47 +00:00
Andrew Victor
9d0412680e [ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories
Now that Linux includes support for the Atmel AT91SAM9260 and
AT91SAM9261 processors in addition to the original Atmel AT91RM9200
(with support for more AT91 processors pending), the "mach-at91rm9200"
and "arch-at91rm9200" directories should be renamed to indicate their
more generic nature.

The following git commands should be run BEFORE applying this patch:
  git-mv arch/arm/mach-at91rm9200 arch/arm/mach-at91
  git-mv include/asm-arm/arch-at91rm9200 include/asm-arm/arch-at91

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-08 14:50:56 +00:00
Ralf Baechle
ec8c0446b6 [PATCH] Optimize D-cache alias handling on fork
Virtually index, physically tagged cache architectures can get away
without cache flushing when forking.  This patch adds a new cache
flushing function flush_cache_dup_mm(struct mm_struct *) which for the
moment I've implemented to do the same thing on all architectures
except on MIPS where it's a no-op.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:27:08 -08:00
Robert P. J. Day
5cbded585d [PATCH] getting rid of all casts of k[cmz]alloc() calls
Run this:

	#!/bin/sh
	for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
	  echo "De-casting $f..."
	  perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
	done

And then go through and reinstate those cases where code is casting pointers
to non-pointers.

And then drop a few hunks which conflicted with outstanding work.

Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:58 -08:00
Linus Torvalds
cd39301a68 Merge branch 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32
* 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32:
  [AVR32] Add missing #include <linux/param.h> to delay.c
  [AVR32] Pass dev parameter to dma_cache_sync()
  [AVR32] Implement intc_get_pending()
  [AVR32] Don't include <asm/delay.h>
  [AVR32] Put the chip in "stop" mode when halting the system
  [AVR32] Set flow handler for external interrupts
  [AVR32] Remove unused file
  [AVR32] Remove mii_phy_addr and eth_addr from eth_platform_data
  [AVR32] Move ethernet tag parsing to board-specific code
  [AVR32] Add macb1 platform_device
  [AVR32] Portmux API update
2006-12-11 18:28:59 -08:00
Alan Cox
be90038a24 [PATCH] tty: preparatory structures for termios revamp
In order to sort out our struct termios and add proper speed control we need
to separate the kernel and user termios structures.  Glibc is fine but the
other libraries rely on the kernel exported struct termios and we need to
extend this without breaking the ABI/API

To do so we add a struct ktermios which is the kernel view of a termios
structure and overlaps the struct termios with extra fields on the end for
now.  (That limitation will go away in later patches).  Some platforms (eg
alpha) planned ahead and thus use the same struct for both, others did not.

This just adds the structures but does not use them, it seems a sensible
splitting point for bisect if there are compile failures (not that I expect
them)

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:56 -08:00
Haavard Skinnemoen
50954ab327 [AVR32] Pass dev parameter to dma_cache_sync()
Fix build breakage resulting from the extra dev parameter added to
dma_cache_sync().

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2006-12-08 13:08:22 +01:00
Haavard Skinnemoen
c164b90135 [AVR32] Remove mii_phy_addr and eth_addr from eth_platform_data
The macb driver will probe for the PHY chip and read the mac address
from the MACB registers, so we don't need them in eth_platform_data
anymore.

Since u-boot doesn't currently initialize the MACB registers with the
mac addresses, the tag parsing code is kept but instead of sticking
the information into eth_platform_data, it uses it to initialize
the MACB registers (in case the boot loader didn't do it.) This code
should be unnecessary at some point in the future.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2006-12-08 13:06:19 +01:00
Haavard Skinnemoen
c3e2a79c0b [AVR32] Portmux API update
Rename portmux_set_func to at32_select_periph, add at32_select_gpio
and add flags parameter to specify the initial state of the pins.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2006-12-08 13:06:17 +01:00
Linus Torvalds
ea14fad0d4 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (76 commits)
  [ARM] 4002/1: S3C24XX: leave parent IRQs unmasked
  [ARM] 4001/1: S3C24XX: shorten reboot time
  [ARM] 3983/2: remove unused argument to __bug()
  [ARM] 4000/1: Osiris: add third serial port in
  [ARM] 3999/1: RX3715: suspend to RAM support
  [ARM] 3998/1: VR1000: LED platform devices
  [ARM] 3995/1: iop13xx: add iop13xx support
  [ARM] 3968/1: iop13xx: add iop13xx_defconfig
  [ARM] Update mach-types
  [ARM] Allow gcc to optimise arm_add_memory a little more
  [ARM] 3991/1: i.MX/MX1 high resolution time source
  [ARM] 3990/1: i.MX/MX1 more precise PLL decode
  [ARM] 3986/1: H1940: suspend to RAM support
  [ARM] 3985/1: ixp4xx clocksource cleanup
  [ARM] 3984/1: ixp4xx/nslu2: Fix disk LED numbering (take 2)
  [ARM] 3994/1: ixp23xx: fix handling of pci master aborts
  [ARM] 3981/1: sched_clock for PXA2xx
  [ARM] 3980/1: extend the ARM Versatile sched_clock implementation from 32 to 63 bit
  [ARM] 3979/1: extend the SA11x0 sched_clock implementation from 32 to 63 bit period
  [ARM] 3978/1: macro to provide a 63-bit value from a 32-bit hardware counter
  ...
2006-12-07 15:40:39 -08:00
Adrian Bunk
7d1362c0d0 [PATCH] cleanup asm/setup.h userspace visibility
Make the contents of the userspace asm/setup.h header consistent on all
architectures:

 - export setup.h to userspace on all architectures
 - export only COMMAND_LINE_SIZE to userspace
 - frv: move COMMAND_LINE_SIZE from param.h
 - i386: remove duplicate COMMAND_LINE_SIZE from param.h
 - arm:
   - export ATAGs to userspace
   - change u8/u16/u32 to __u8/__u16/__u32

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:46 -08:00
Ralf Baechle
d3fa72e455 [PATCH] Pass struct dev pointer to dma_cache_sync()
Pass struct dev pointer to dma_cache_sync()

dma_cache_sync() is ill-designed in that it does not have a struct device
pointer argument which makes proper support for systems that consist of a
mix of coherent and non-coherent DMA devices hard.  Change dma_cache_sync
to take a struct device pointer as first argument and fix all its callers
to pass it.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:41 -08:00
Ralf Baechle
f67637ee4b [PATCH] Add struct dev pointer to dma_is_consistent()
dma_is_consistent() is ill-designed in that it does not have a struct
device pointer argument which makes proper support for systems that consist
of a mix of coherent and non-coherent DMA devices hard.  Change
dma_is_consistent to take a struct device pointer as first argument and fix
the sole caller to pass it.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:41 -08:00
Matthew Wilcox
e62438630c [PATCH] Centralise definitions of sector_t and blkcnt_t
CONFIG_LBD and CONFIG_LSF are spread into asm/types.h for no particularly
good reason.

Centralising the definition in linux/types.h means that arch maintainers
don't need to bother adding it, as well as fixing the problem with
x86-64 users being asked to make a decision that has absolutely no
effect.

The H8/300 porters seem particularly confused since I'm not aware of any
microcontrollers that need to support 2TB filesystems.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-04 19:41:15 -08:00
Al Viro
475b8f311b [NET]: AVR32 checksum annotations and cleanups.
* sanitize prototypes, annotate
* kill useless shifts
* kill useless ntohs (it's big-endian, for fsck sake!)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02 21:23:18 -08:00
Benjamin Herrenschmidt
c6dbaef22a Driver core: add dev_archdata to struct device
Add arch specific dev_archdata to struct device

Adds an arch specific struct dev_arch to struct device. This enables
architecture to add specific fields to every device in the system, like
DMA operation pointers, NUMA node ID, firmware specific data, etc...

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Andi Kleen <ak@suse.de>
Acked-By: David Howells <dhowells@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-01 14:52:01 -08:00
Andrew Victor
55d8baee4a [ARM] 3954/1: AT91: Update drivers for new headers
This patch updates the drivers (and other files) which include the
hardware headers.  This fixes the breakage introduced in patches 3950/1
and 3951/1 (those patches were getting big).

The AVR32 architecture uses the same serial driver and had its own copy
of at91rm9200_pdc.h.  Renamed it to at91_pdc.h

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-11-30 22:51:40 +00:00
Haavard Skinnemoen
bbfd2bf902 AVR32: Wire up sys_epoll_pwait
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2006-11-06 14:07:15 +01:00
Ben Nizette
065834ab39 [PATCH] AVR32: add io{read,write}{8,16,32}{be,} support
A number of new drivers require io{read,write}{8,16,32}{be,} family of io
operations.  These are provided for the AVR32 by this patch in the form of
a series of macros.

Access to the (memory mapped) io space through these macros is defined to
be little endian only as little endian devices (such as PCI) are the main
consumer of IO access.  If high speed access is required,
io{read,write}{16,32}be macros are supplied to perform native big endian
access to this io space.

Signed-off-by: Ben Nizette <ben@mallochdigital.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-25 20:26:33 -07:00
Haavard Skinnemoen
fa3522407f [PATCH] AVR32: Fix oversize immediates in atomic.h
When calling e.g. atomic_sub_return with a large constant, the
compiler may output an immediate that is too large for the sub
instruction in the middle of the loop.

Fix this by explicitly specifying the number of bits allowed in the
constraint. Also stop atomic_add_return() and friends from falling
back to their respective "sub" variants if the constant is too large
to fit in an immediate.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-25 20:26:33 -07:00