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sh: nommu: Support building without an uncached mapping.

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Now that nommu selects 32BIT we run in to the situation where SH-2A
supports an uncached identity mapping by way of the BSC, while the SH-2
does not. This provides stubs for the PC manglers and tidies up some of
the system*.h mess in the process.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2010-11-04 12:46:19 +09:00
parent e2fcf74f3d
commit edc9a958fd
4 changed files with 41 additions and 42 deletions
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3
arch/sh/include/asm/system_64.h
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@@ -34,9 +34,6 @@ do { \
&next->thread); \
} while (0)
#define jump_to_uncached() do { } while (0)
#define back_to_cached() do { } while (0)
#define __icbi(addr) __asm__ __volatile__ ( "icbi %0, 0\n\t" : : "r" (addr))
#define __ocbp(addr) __asm__ __volatile__ ( "ocbp %0, 0\n\t" : : "r" (addr))
#define __ocbi(addr) __asm__ __volatile__ ( "ocbi %0, 0\n\t" : : "r" (addr))