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| author | Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> | 2011-11-04 22:13:50 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-21 14:31:15 -0800 |
| commit | f5116ff776a68277c0b60ba57e74c7074b72ab65 (patch) | |
| tree | 67f567e8f27cde1f4dcbba22325963e5161e7bb3 /arch/sh | |
| parent | 6c43a5e42ca88c5770de53fb969a0b6f04d86982 (diff) | |
| download | kernel_samsung_smdk4412-f5116ff776a68277c0b60ba57e74c7074b72ab65.tar.gz kernel_samsung_smdk4412-f5116ff776a68277c0b60ba57e74c7074b72ab65.tar.bz2 kernel_samsung_smdk4412-f5116ff776a68277c0b60ba57e74c7074b72ab65.zip | |
sh: Fix cached/uncaced address calculation in 29bit mode
commit dfd3b596fbbfa48b8e7966ef996d587157554b69 upstream.
In the case of 29bit mode, CAC/UNCAC_ADDR does not return a right address.
This revises this problem by using P1SEGADDR and P2SEGADDR in 29bit mode.
Reported-by: Yutaro Ebihara <ebiharaml@si-linux.co.jp>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/include/asm/page.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/sh/include/asm/page.h b/arch/sh/include/asm/page.h index 822d6084195..abcc4dcc2d9 100644 --- a/arch/sh/include/asm/page.h +++ b/arch/sh/include/asm/page.h @@ -141,8 +141,13 @@ typedef struct page *pgtable_t; #endif /* !__ASSEMBLY__ */ #ifdef CONFIG_UNCACHED_MAPPING +#if defined(CONFIG_29BIT) +#define UNCAC_ADDR(addr) P2SEGADDR(addr) +#define CAC_ADDR(addr) P1SEGADDR(addr) +#else #define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + uncached_start) #define CAC_ADDR(addr) ((addr) - uncached_start + PAGE_OFFSET) +#endif #else #define UNCAC_ADDR(addr) ((addr)) #define CAC_ADDR(addr) ((addr)) |