linux-toradex.git/arch/sh/include/asm, branch v2.6.28.8

Remove attribute((weak)) from sys_pipe/sys_pipe2

2009-01-18T18:43:51+00:00

commit 1134723e96f6e2abcf8bfd7a2d1c96fcc323ef35 upstream.

Remove __attribute__((weak)) from common code sys_pipe implemantation.
IA64, ALPHA, SUPERH (32bit) and SPARC (32bit) have own implemantations
with the same name. Just rename them.
For sys_pipe2 there is no architecture specific implementation.

Cc: Richard Henderson 
Cc: David S. Miller 
Cc: Paul Mundt 
Cc: Tony Luck 
Signed-off-by: Heiko Carstens 
Signed-off-by: Greg Kroah-Hartman

sh: Provide a sane valid_phys_addr_range() to prevent TLB reset with PMB.

2008-11-12T03:53:48+00:00

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 
Signed-off-by: Paul Mundt

sh: Handle fixmap TLB eviction more coherently.

2008-11-10T11:00:45+00:00

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 
Reported-by: CHIKAMA Masaki 
Tested-by: Yoshihiro Shimoda 
Signed-off-by: Paul Mundt

sh: use the new byteorder headers.

2008-10-31T07:01:22+00:00

Signed-off-by: Harvey Harrison 
Signed-off-by: Andrew Morton 
Signed-off-by: Paul Mundt

sh: Kill off long-dead HD64465 cchip support.

2008-10-28T11:07:44+00:00

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

sh: asm/gpio.h needs linux/kernel.h for might_sleep()/WARN_ON().

2008-10-23T03:37:20+00:00

Signed-off-by: Paul Mundt

sh: improve pinmux support for single direction pins

2008-10-22T09:34:16+00:00

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 
Signed-off-by: Paul Mundt

sh: Wire up oops reporting in the die notifier chain.

2008-10-21T09:33:36+00:00

Commit 3f5a54e371ca20b119b73704f6c01b71295c1714 ("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

sh: gpio: Stub in dummy GPIO<->IRQ mapping routines.

2008-10-21T08:48:40+00:00

IRQ modes are not presently supported, so stub in dummy definitions
for now (taken from linux/gpio.h).

Signed-off-by: Paul Mundt

sh: gpio: Include asm-generic/gpio.h for non-gpiolib stubs.

2008-10-21T05:27:05+00:00

Signed-off-by: Paul Mundt