linux.git/include/asm-sh/cacheflush.h, branch master

sh: migrate to arch/sh/include/

2008-07-28T23:09:44+00:00

This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac.

Most of the moving about was done with Sam's directions at:

http://marc.info/?l=linux-sh&m=121724823706062&w=2

with subsequent hacking and fixups entirely my fault.

Signed-off-by: Sam Ravnborg 
Signed-off-by: Paul Mundt

sh: Fix argument page dcache flushing regression.

2008-01-07T04:50:18+00:00

In the do_execve() path, argument page handling used to explicitly call
flush_dcache_page() for each page, this has since been reworked and
uses flush_kernel_dcache_page() instead, which is presently a nop.

Doing a simple modprobe/rmmod in a loop under busybox consistently
manages to crash without providing a sane flush_kernel_dcache_page()
implementation, so, plug in a simple implementation.

Signed-off-by: Carmelo Amoroso 
Signed-off-by: Paul Mundt

sh: Fix copy_{to,from}_user_page() with cache disabled.

2007-11-19T03:55:51+00:00

Signed-off-by: Heiko Schocher 
Signed-off-by: Paul Mundt

sh: Optimized copy_{to,from}_user_page() for SH-4.

2007-11-07T02:14:12+00:00

This moves copy_{to,from}_user_page() out-of-line on SH-4 and
converts for the kmap_coherent() API. Based on the MIPS
implementation.

Signed-off-by: Paul Mundt

sh: Support explicit L1 cache disabling.

2007-09-21T02:57:46+00:00

This reworks the cache mode configuration in Kconfig, and allows for
explicit selection of write-back/write-through/off configurations.
All of the cache flushing routines are optimized away for the off
case.

Signed-off-by: Paul Mundt

sh: Revert lazy dcache writeback changes.

2007-03-05T10:46:47+00:00

These ended up causing too many problems on older parts,
revert for now..

Signed-off-by: Paul Mundt

sh: Lazy dcache writeback optimizations.

2007-02-13T01:54:44+00:00

This converts the lazy dcache handling to the model described in
Documentation/cachetlb.txt and drops the ptep_get_and_clear() hacks
used for the aliasing dcaches on SH-4 and SH7705 in 32kB mode. As a
bonus, this slightly cuts down on the cache flushing frequency.

With that and the PTEA handling out of the way, the update_mmu_cache()
implementations can be consolidated, and we no longer have to worry
about which configuration the cache is in for the SH7705 case.

And finally, explicitly disable the lazy writeback on SMP (SH-4A).

Signed-off-by: Paul Mundt

sh: Calculate shm alignment at runtime.

2006-09-27T09:36:17+00:00

Set the SHM alignment at runtime, based off of probed cache desc.
Optimize get_unmapped_area() to only colour align shared mappings.

Signed-off-by: Paul Mundt

sh: page table alloc cleanups and page fault optimizations.

2006-09-27T06:13:36+00:00

Cleanup of page table allocators, using generic folded PMD and PUD
helpers. TLB flushing operations are moved to a more sensible spot.

The page fault handler is also optimized slightly, we no longer waste
cycles on IRQ disabling for flushing of the page from the ITLB, since
we're already under CLI protection by the initial exception handler.

Signed-off-by: Paul Mundt

Linux-2.6.12-rc2

2005-04-16T22:20:36+00:00

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!