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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 <lethal@linux-sh.org>
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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>
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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>
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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>
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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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>
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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>
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