linux-toradex.git/arch/sh/mm/cache-sh2a.c, branch v4.1

sh: prefix sh-specific "CCR" and "CCR2" by "SH_"

2014-03-04T15:55:49+00:00

Commit bcf24e1daa94 ("mmc: omap_hsmmc: use the generic config for
omap2plus devices"), enabled the build for other platforms for compile
testing.

sh-allmodconfig now fails with:

    include/linux/omap-dma.h:171:8: error: expected identifier before numeric constant
    make[4]: *** [drivers/mmc/host/omap_hsmmc.o] Error 1

This happens because SuperH #defines "CCR", which is one of the enum
values in include/linux/omap-dma.h.  There's a similar issue with "CCR2"
on sh2a.

As "CCR" and "CCR2" are too generic names for global #defines, prefix
them with "SH_" to fix this.

Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sh: Fix sh2a build error for CONFIG_CACHE_WRITETHROUGH

2012-02-24T04:21:46+00:00

Signed-off-by: Phil Edworthy 
Signed-off-by: Paul Mundt

sh: sh2a: Improve cache flush/invalidate functions

2012-01-12T04:11:02+00:00

The cache functions lock out interrupts for long periods; this patch
reduces the impact when operating on large address ranges. In such
cases it will:
- Invalidate the entire cache rather than individual addresses.
- Do nothing when flushing the operand cache in write-through mode.
- When flushing the operand cache in write-back mdoe, index the
  search for matching addresses on the cache entires instead of the
  addresses to flush

Note: sh2a__flush_purge_region was only invalidating the operand
cache, this adds flush.

Signed-off-by: Phil Edworthy 
Signed-off-by: Paul Mundt

sh: Mass ctrl_in/outX to __raw_read/writeX conversion.

2010-01-26T03:58:40+00:00

The old ctrl in/out routines are non-portable and unsuitable for
cross-platform use. While drivers/sh has already been sanitized, there
is still quite a lot of code that is not. This converts the arch/sh/ bits
over, which permits us to flag the routines as deprecated whilst still
building with -Werror for the architecture code, and to ensure that
future users are not added.

Signed-off-by: Paul Mundt

Revert "sh: Kill off now redundant local irq disabling."

2009-09-01T12:12:55+00:00

This reverts commit 64a6d72213dd810dd55bd0a503c36150af41c3c3.

Unfortunately we can't use on_each_cpu() for all of the cache ops, as
some of them only require preempt disabling. This seems to be the same
issue that impacts the mips r4k caches, where this code was based on.
This fixes up a deadlock that showed up in some IRQ context cases.

Signed-off-by: Paul Mundt

sh: Kill off now redundant local irq disabling.

2009-08-21T09:21:07+00:00

on_each_cpu() takes care of IRQ and preempt handling, the localized
handling in each of the called functions can be killed off.

Signed-off-by: Paul Mundt

sh: Make cache flushers SMP-aware.

2009-08-21T08:23:14+00:00

This does a bit of rework for making the cache flushers SMP-aware. The
function pointer-based flushers are renamed to local variants with the
exported interface being commonly implemented and wrapping as necessary.

Signed-off-by: Paul Mundt

sh: Convert SH-2A to new cacheflush interface.

2009-08-15T03:38:29+00:00

Signed-off-by: Paul Mundt

sh: fix sh2a cache entry_mask

2008-10-31T07:29:20+00:00

fix sh2a cache entry_mask in __flush_{purge,invalidate}_region.

Signed-off-by: Yoshihiro Shimoda 
Signed-off-by: Paul Mundt

SH2(A) cache update

2008-08-04T07:33:47+00:00

Includes:
- SH2 (7619) Writeback support.
- SH2A cache handling fix.

Signed-off-by: Yoshinori Sato 
Signed-off-by: Paul Mundt