sh: Make cache flushers SMP-aware.

This does a bit of rework for making the cache flushers SMP-aware. The
function pointer-based flushers are renamed to local variants with the
exported interface being commonly implemented and wrapping as necessary.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/arch/sh/mm/cache-sh2a.c b/arch/sh/mm/cache-sh2a.c
index 96a41872dfd3..975899d83564 100644
--- a/arch/sh/mm/cache-sh2a.c
+++ b/arch/sh/mm/cache-sh2a.c
@@ -97,13 +97,15 @@ static void sh2a__flush_invalidate_region(void *start, int size)
 }
 
 /* WBack O-Cache and flush I-Cache */
-static void sh2a_flush_icache_range(unsigned long start, unsigned long end)
+static void sh2a_flush_icache_range(void *args)
 {
+        struct flusher_data *data = args;
+        unsigned long start, end;
         unsigned long v;
         unsigned long flags;
 
-        start = start & ~(L1_CACHE_BYTES-1);
-        end = (end + L1_CACHE_BYTES-1) & ~(L1_CACHE_BYTES-1);
+        start = data->addr1 & ~(L1_CACHE_BYTES-1);
+        end = (data->addr2 + L1_CACHE_BYTES-1) & ~(L1_CACHE_BYTES-1);
 
         local_irq_save(flags);
         jump_to_uncached();
@@ -130,7 +132,7 @@ static void sh2a_flush_icache_range(unsigned long start, unsigned long end)
 
 void __init sh2a_cache_init(void)
 {
-        flush_icache_range              = sh2a_flush_icache_range;
+        local_flush_icache_range        = sh2a_flush_icache_range;
 
         __flush_wback_region            = sh2a__flush_wback_region;
         __flush_purge_region            = sh2a__flush_purge_region;