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6 Commits

Author SHA1 Message Date
Paul Mundt
983f4c514c Revert "sh: Kill off now redundant local irq disabling." 
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 <lethal@linux-sh.org>
 2009-09-01 21:12:55 +09:00
Paul Mundt
64a6d72213 sh: Kill off now redundant local irq disabling. 
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 <lethal@linux-sh.org>
 2009-08-21 18:21:07 +09:00
Paul Mundt
f26b2a562b sh: Make cache flushers SMP-aware. 
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 <lethal@linux-sh.org>
 2009-08-21 17:23:14 +09:00
Paul Mundt
a58e1a2ab4 sh: Convert SH-2A to new cacheflush interface. 
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
 2009-08-15 12:38:29 +09:00
Yoshihiro Shimoda
216813a8bb sh: fix sh2a cache entry_mask 
fix sh2a cache entry_mask in __flush_{purge,invalidate}_region.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
 2008-10-31 16:29:20 +09:00
Yoshinori Sato
cce2d453e4 SH2(A) cache update 
Includes:
- SH2 (7619) Writeback support.
- SH2A cache handling fix.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
 2008-08-04 16:33:47 +09:00