linux.git/arch/parisc/kernel/entry.S, branch v2.6.37

parisc: Remove unnecessary macros from entry.S

2010-05-30T09:47:28+00:00

The EXTR, DEP and DEPI macros are unnecessary.  There are PA 1.X
pneumonics available with the same functionality, and the DEP and DEPI
macros conflict with assembler pneumonics.

Tested on a variety of 32 and 64-bit systems.

Signed-off-by: John David Anglin 
Signed-off-by: Kyle McMartin

parisc: Delete unnecessary nop's in entry.S

2010-05-30T09:45:22+00:00

Signed-off-by: John David Anglin 
Signed-off-by: Kyle McMartin

parisc: Avoid interruption in critical region in entry.S

2010-05-30T09:44:36+00:00

Signed-off-by: John David Anglin 
Signed-off-by: Kyle McMartin

parisc: stop using task->ptrace for {single,block}step flags

2009-09-28T03:07:22+00:00

task->ptrace flags belong to generic code, so instead thief some
TIF_ bits to use. Somewhat risky conversion of code to test TASK_FLAGS
instead of TASK_PTRACE in assembly, but it looks alright in the end.

Signed-off-by: Kyle McMartin

KEYS: Extend TIF_NOTIFY_RESUME to (almost) all architectures [try #6]

2009-09-02T11:29:19+00:00

Implement TIF_NOTIFY_RESUME for most of those architectures in which isn't yet
available, and, whilst we're at it, have it call the appropriate tracehook.

After this patch, blackfin, m68k* and xtensa still lack support and need
alteration of assembly code to make it work.

Resume notification can then be used (by a later patch) to install a new
session keyring on the parent of a process.

Signed-off-by: David Howells 
Acked-by: Russell King 

cc: linux-arch@vger.kernel.org
Signed-off-by: James Morris

parisc: Set correct bit in protection flags

2009-08-02T10:36:05+00:00

Signed-off-by: John David Anglin 
Signed-off-by: Helge Deller

parisc: add ftrace (function and graph tracer) functionality

2009-03-31T02:51:34+00:00

This patch adds the ftrace debugging functionality to the parisc kernel.
It will currently only work with 64bit kernels, because the gcc options -pg
and -ffunction-sections can't be enabled at the same time and -ffunction-sections
is still needed to be able to link 32bit kernels.

Signed-off-by: Helge Deller 
Signed-off-by: Kyle McMartin

parisc: allow to build with 16k default kernel page size

2009-03-31T02:51:33+00:00

Introduce new convert_for_tlb_insert20 macro and use it to replace assembler
statements with hardcoded constants.
This change allows the parisc64 kernel to boot with 16kb default kernel page size,
aka CONFIG_PARISC_PAGE_SIZE_16KB=y.

Signed-off-by: Helge Deller 
Signed-off-by: Kyle McMartin

parisc: use constants instead of numbers in assembly

2009-03-31T02:51:33+00:00

A few small fixups:
* _PAGE_SIZE_ENCODING_DEFAULT is wrong here, as one might assume that
  it's possible to define the page size that way. This is wrong. Use 0 instead.
* use constants instead of hardcoded numerical values in depi and extru
  while building the PFN out of the pte entry
* use SHRREG instead of extru (iitlba expects the PFN at bits {7..26})

Still wondering why we can use the same register (pte) as extru source
and target register, but it seems to work on PA1.1 and PA2.0...

Signed-off-by: Helge Deller 
Signed-off-by: Kyle McMartin

parisc: add braces around arguments in assembler macros

2009-03-13T05:18:27+00:00

Add braces around the macro arguments, else for example
"shl %r1, 5-3, %r2" would not expand to what you would assume.

Signed-off-by: Helge Deller 
Signed-off-by: Kyle McMartin