linux.git/arch/xtensa/kernel, branch v2.6.23

[XTENSA] Add support for cache-aliasing

2007-08-27T20:54:16+00:00

Add support for processors that have cache-aliasing issues, such as
the Stretch S5000 processor. Cache-aliasing means that the size of
the cache (for one way) is larger than the page size, thus, a page
can end up in several places in cache depending on the virtual to
physical translation. The method used here is to map a user page
temporarily through the auto-refill way 0 and of of the DTLB.
We probably will want to revisit this issue and use a better
approach with kmap/kunmap.

Signed-off-by: Chris Zankel

[XTENSA] Add kernel module support

2007-08-27T20:54:06+00:00

Add kernel module support.

Signed-off-by: Chris Zankel

[XTENSA] Add support for executable/non-executable feature in the mmu

2007-08-27T20:54:01+00:00

Newer processor versions starting with Xtensa6/LX2 support an 'executable'
bit for memory pages. This bit replaces the 'valid' bit, so it must be
always set to one for older processor versions. To mark a page invalid, we now
set the cache-attributes to b11, which is backward compatible.

Signed-off-by: Chris Zankel

[XTENSA] Initialize semaphore_wake_lock

2007-08-27T20:53:51+00:00

Initialize semaphore_wake_lock.

Signed-off-by: Chris Zankel

[XTENSA] Fix timer instabilities.

2007-08-27T20:53:37+00:00

The timer code could have missed a tick.

Signed-off-by: Chris Zankel

[XTENSA] Fix fadvise64_64

2007-08-27T20:53:32+00:00

Xtensa passes long long arguments in a even/odd register pair,
so we also need to shuffle the arguments when passed through the
system call to avoid an empty argument register.

Signed-off-by: Chris Zankel

[XTENSA] Move string-io functions to io.c from pci.c

2007-08-27T20:53:22+00:00

The string-io functions (outs{bwl}, ins{bwl}) are independent from
the PCI option and should be in a separate file.

Signed-off-by: Chris Zankel

[XTENSA] Move pre-initialized structures to init_task.c

2007-08-27T20:53:12+00:00

Move all initialization structures for the initial task to it's own file.

Signed-off-by: Chris Zankel

[XTENSA] fix wrong usage of init and initdata in traps.c

2007-08-27T20:52:49+00:00

A variable was defined with __init instead of __initdata and
the function accessing that variable wasn't initialized with
__init.

Signed-off-by: Chris Zankel

Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild

2007-07-19T21:28:19+00:00

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (33 commits)
  xtensa: use DATA_DATA in xtensa
  powerpc: add missing DATA_DATA to powerpc
  cris: use DATA_DATA in cris
  kallsyms: remove usage of memmem and _GNU_SOURCE from scripts/kallsyms.c
  kbuild: use -fno-optimize-sibling-calls unconditionally
  kconfig: reset generated values only if Kconfig and .config agree.
  kbuild: fix the warning when running make tags
  kconfig: strip 'CONFIG_' automatically in kernel configuration search
  kbuild: use POSIX BRE in headers install target
  Whitelist references from __dbe_table to .init
  modpost white list pattern adjustment
  kbuild: do section mismatch check on full vmlinux
  kbuild: whitelist references from variables named _timer to .init.text
  kbuild: remove hardcoded _logo names from modpost
  kbuild: remove hardcoded apic_es7000 from modpost
  kbuild: warn about references from .init.text to .exit.text
  kbuild: consolidate section checks
  kbuild: refactor code in modpost to improve maintainability
  kbuild: ignore section mismatch warnings originating from .note section
  kbuild: .paravirtprobe section is obsolete, so modpost doesn't need to handle it
  ...