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| author | Paul Mundt <lethal@linux-sh.org> | 2010-11-04 06:46:19 +0300 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-11-04 06:46:19 +0300 |
| commit | edc9a958fd31ef1d89f9eaee82b2a3882c8e34c9 (patch) | |
| tree | bdc96edeb6a41ab72ae87daf46d3402aba633541 /arch/sh/include/asm/system_32.h | |
| parent | e2fcf74f3d3dabe8591732cd37869a0cc88ed7a5 (diff) | |
| download | linux-edc9a958fd31ef1d89f9eaee82b2a3882c8e34c9.tar.xz | |
sh: nommu: Support building without an uncached mapping.
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>
Diffstat (limited to 'arch/sh/include/asm/system_32.h')
| -rw-r--r-- | arch/sh/include/asm/system_32.h | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/arch/sh/include/asm/system_32.h b/arch/sh/include/asm/system_32.h index c941b2739405..a4ad1cd9bc4d 100644 --- a/arch/sh/include/asm/system_32.h +++ b/arch/sh/include/asm/system_32.h @@ -145,42 +145,6 @@ do { \ __restore_dsp(prev); \ } while (0) -/* - * Jump to uncached area. - * When handling TLB or caches, we need to do it from an uncached area. - */ -#define jump_to_uncached() \ -do { \ - unsigned long __dummy; \ - \ - __asm__ __volatile__( \ - "mova 1f, %0\n\t" \ - "add %1, %0\n\t" \ - "jmp @%0\n\t" \ - " nop\n\t" \ - ".balign 4\n" \ - "1:" \ - : "=&z" (__dummy) \ - : "r" (cached_to_uncached)); \ -} while (0) - -/* - * Back to cached area. - */ -#define back_to_cached() \ -do { \ - unsigned long __dummy; \ - ctrl_barrier(); \ - __asm__ __volatile__( \ - "mov.l 1f, %0\n\t" \ - "jmp @%0\n\t" \ - " nop\n\t" \ - ".balign 4\n" \ - "1: .long 2f\n" \ - "2:" \ - : "=&r" (__dummy)); \ -} while (0) - #ifdef CONFIG_CPU_HAS_SR_RB #define lookup_exception_vector() \ ({ \ |