linux-stable.git/arch/xtensa, branch linux-2.6.31.y

arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0

2009-10-22T22:11:51+00:00

commit 51b563fc93c8cb5bff1d67a0a71c374e4a4ea049 upstream.

Albin Tonnerre  reported:

    Bash 4 filters out variables which contain a dot in them.
    This happends to be the case of CPPFLAGS_vmlinux.lds.
    This is rather unfortunate, as it now causes
    build failures when using SHELL=/bin/bash to compile,
    or when bash happens to be used by make (eg when it's /bin/sh)

Remove the common definition of CPPFLAGS_vmlinux.lds by
pushing relevant stuff to either Makefile.build or the
arch specific kernel/Makefile where we build the linker script.

This is also nice cleanup as we move the information out where
it is used.

Notes for the different architectures touched:

arm - we use an already exported symbol
cris - we use a config symbol aleady available
       [Not build tested]
mips - the jiffies complexity has moved to vmlinux.lds.S where we need it.
       Added a few variables to CPPFLAGS - they are only used by
       the linker script.
       [Not build tested]
powerpc - removed assignment that is not needed
          [not build tested]
sparc - simplified it using $(BITS)
um - introduced a few new exported variables to deal with this
xtensa - added options to CPP invocation
         [not build tested]

Cc: Albin Tonnerre 
Cc: Russell King 
Cc: Mikael Starvik 
Cc: Jesper Nilsson 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: "David S. Miller" 
Cc: Jeff Dike 
Cc: Chris Zankel 
Signed-off-by: Sam Ravnborg 
Signed-off-by: Greg Kroah-Hartman

mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()

2009-07-27T19:10:38+00:00

mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()

Upcoming paches to support the new 64-bit "BookE" powerpc architecture
will need to have the virtual address corresponding to PTE page when
freeing it, due to the way the HW table walker works.

Basically, the TLB can be loaded with "large" pages that cover the whole
virtual space (well, sort-of, half of it actually) represented by a PTE
page, and which contain an "indirect" bit indicating that this TLB entry
RPN points to an array of PTEs from which the TLB can then create direct
entries. Thus, in order to invalidate those when PTE pages are deleted,
we need the virtual address to pass to tlbilx or tlbivax instructions.

The old trick of sticking it somewhere in the PTE page struct page sucks
too much, the address is almost readily available in all call sites and
almost everybody implemets these as macros, so we may as well add the
argument everywhere. I added it to the pmd and pud variants for consistency.

Signed-off-by: Benjamin Herrenschmidt 
Acked-by: David Howells  [MN10300 & FRV]
Acked-by: Nick Piggin 
Acked-by: Martin Schwidefsky  [s390]
Signed-off-by: Linus Torvalds

sched: INIT_PREEMPT_COUNT

2009-07-10T21:24:05+00:00

Pull the initial preempt_count value into a single
definition site.

Maintainers for: alpha, ia64 and m68k, please have a look,
your arch code is funny.

The header magic is a bit odd, but similar to the KERNEL_DS
one, CPP waits with expanding these macros until the
INIT_THREAD_INFO macro itself is expanded, which is in
arch/*/kernel/init_task.c where we've already included
sched.h so we're good.

Cc: tony.luck@intel.com
Cc: rth@twiddle.net
Cc: geert@linux-m68k.org
Signed-off-by: Peter Zijlstra 
Acked-by: Matt Mackall 
Signed-off-by: Linus Torvalds

Remove multiple KERN_ prefixes from printk formats

2009-07-08T17:30:03+00:00

Commit 5fd29d6ccbc98884569d6f3105aeca70858b3e0f ("printk: clean up
handling of log-levels and newlines") changed printk semantics.  printk
lines with multiple KERN_ prefixes are no longer emitted as
before the patch.

 is now included in the output on each additional use.

Remove all uses of multiple KERN_s in formats.

Signed-off-by: Joe Perches 
Signed-off-by: Linus Torvalds

xtensa: enable m41t80 driver in s6105_defconfig

2009-06-22T09:38:11+00:00

Signed-off-by: Daniel Glockner 
Cc: David Brownell 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton

xtensa: add m41t62 rtc to s6105 platform

2009-06-22T09:38:06+00:00

Signed-off-by: Daniel Glockner 
Cc: David Brownell 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton

xtensa: enable s6gmac in s6105_defconfig

2009-06-22T09:37:57+00:00

Signed-off-by: Daniel Glockner 
Cc: "David S. Miller" 
Cc: Johannes Weiner 
Cc: Oskar Schirmer 
Signed-off-by: Andrew Morton

xtensa: s6105 specific configuration for s6gmac

2009-06-22T09:37:49+00:00

Platform-specific configuration for the s6gmac driver, including the
PHY interrupt line.

Signed-off-by: Daniel Glockner 
Signed-off-by: Oskar Schirmer 
Cc: "David S. Miller" 
Cc: Johannes Weiner 
Signed-off-by: Andrew Morton

xtensa: support s6000 gpio irqs and alternate function selection

2009-06-22T09:37:26+00:00

Implement an irq chip to handle interrupts via gpio.  The GPIO chip
initialization function now takes a bitmask denoting pins that should
be configured for their alternate function.

changes compared to v1:
- fixed bug on edge interrupt configuration
- accommodated to function name change
- moved definition of VARIANT_NR_IRQS to this patch
- renamed __XTENSA_S6000_IRQ_H to _XTENSA_S6000_IRQ_H as requested

Signed-off-by: Daniel Glöckner 
Signed-off-by: Johannes Weiner 
Signed-off-by: Chris Zankel

xtensa: s6000 dma engine support

2009-06-22T09:37:11+00:00

There are four slightly different dma engines on the s6000 family.
One for memory-memory transfers, the other three for memory-device.

This patch implements a platform-specific kernel-API to control these
engines.  It is needed for the network, video, audio peripherals on
s6000.

Signed-off-by: Oskar Schirmer 
Signed-off-by: Daniel Glockner 
Signed-off-by: Fabian Godehardt 
Cc: Daniel Glockner 
Signed-off-by: Andrew Morton 
Signed-off-by: Chris Zankel