diff options
| author | Stuart Menefy <stuart.menefy@st.com> | 2007-11-30 11:06:36 +0300 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-28 07:18:59 +0300 |
| commit | cbaa118ecfd99fc5ed7adbd9c34a30e1c05e3c93 (patch) | |
| tree | e60db5c0f3573558c97f39cfab78732220a72e6d /arch/sh/mm/cache-sh7705.c | |
| parent | 325df7f20467da07901c4f2b006d3457bba0adec (diff) | |
| download | linux-cbaa118ecfd99fc5ed7adbd9c34a30e1c05e3c93.tar.xz | |
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 'arch/sh/mm/cache-sh7705.c')
| -rw-r--r-- | arch/sh/mm/cache-sh7705.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/sh/mm/cache-sh7705.c b/arch/sh/mm/cache-sh7705.c index 4896d7376926..22dacc778823 100644 --- a/arch/sh/mm/cache-sh7705.c +++ b/arch/sh/mm/cache-sh7705.c @@ -71,7 +71,7 @@ void flush_icache_range(unsigned long start, unsigned long end) /* * Writeback&Invalidate the D-cache of the page */ -static void __flush_dcache_page(unsigned long phys) +static void __uses_jump_to_uncached __flush_dcache_page(unsigned long phys) { unsigned long ways, waysize, addrstart; unsigned long flags; @@ -92,7 +92,7 @@ static void __flush_dcache_page(unsigned long phys) * possible. */ local_irq_save(flags); - jump_to_P2(); + jump_to_uncached(); ways = current_cpu_data.dcache.ways; waysize = current_cpu_data.dcache.sets; @@ -118,7 +118,7 @@ static void __flush_dcache_page(unsigned long phys) addrstart += current_cpu_data.dcache.way_incr; } while (--ways); - back_to_P1(); + back_to_cached(); local_irq_restore(flags); } @@ -132,15 +132,15 @@ void flush_dcache_page(struct page *page) __flush_dcache_page(PHYSADDR(page_address(page))); } -void flush_cache_all(void) +void __uses_jump_to_uncached flush_cache_all(void) { unsigned long flags; local_irq_save(flags); - jump_to_P2(); + jump_to_uncached(); cache_wback_all(); - back_to_P1(); + back_to_cached(); local_irq_restore(flags); } |