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| author | Stuart Menefy <stuart.menefy@st.com> | 2007-11-30 09:06:36 +0100 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-28 05:18:59 +0100 |
| commit | cbaa118ecfd99fc5ed7adbd9c34a30e1c05e3c93 (patch) | |
| tree | e60db5c0f3573558c97f39cfab78732220a72e6d /include/asm-sh/system_64.h | |
| parent | sh: Explicit alignment for PAGE_SIZE in copy/clear_page(). (diff) | |
| download | linux-cbaa118ecfd99fc5ed7adbd9c34a30e1c05e3c93.tar.xz linux-cbaa118ecfd99fc5ed7adbd9c34a30e1c05e3c93.zip | |
sh: Preparation for uncached jumps through PMB.
Presently most of the 29-bit physical parts do P1/P2 segmentation
with a 1:1 cached/uncached mapping, jumping between the two to
control the caching behaviour. This provides the basic infrastructure
to maintain this behaviour on 32-bit physical parts that don't map
P1/P2 at all, using a shiny new linker section and corresponding
fixmap entry.
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/system_64.h')
| -rw-r--r-- | include/asm-sh/system_64.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/asm-sh/system_64.h b/include/asm-sh/system_64.h index 0e466e991f7d..943acf5ea07c 100644 --- a/include/asm-sh/system_64.h +++ b/include/asm-sh/system_64.h @@ -32,8 +32,9 @@ do { \ &next->thread); \ } while (0) -/* No segmentation.. */ -#define jump_to_P2() do { } while (0) -#define back_to_P1() do { } while (0) +#define __uses_jump_to_uncached + +#define jump_to_uncached() do { } while (0) +#define back_to_cached() do { } while (0) #endif /* __ASM_SH_SYSTEM_64_H */ |