aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorPaul Mundt <lethal@linux-sh.org>2009-09-09 13:19:46 +0900
committerPaul Mundt <lethal@linux-sh.org>2009-09-09 13:19:46 +0900
commit682f88ab74e55dae55ea3bf30b46f56f71b793bd (patch)
treeac69cca0daf545452c3c411fb606a06228875529
parent1043bf5c95cf065c9959c2733d6e868f9806eb66 (diff)
sh: Cleanup whitespace damage in sh4_flush_icache_range().
There was quite a lot of tab->space damage done here from a former patch, clean it up once and for all. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
-rw-r--r--arch/sh/mm/cache-sh4.c63
1 files changed, 33 insertions, 30 deletions
diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c
index 3ac4945cb49..b2453bbef4c 100644
--- a/arch/sh/mm/cache-sh4.c
+++ b/arch/sh/mm/cache-sh4.c
@@ -46,7 +46,6 @@ static void (*__flush_dcache_segment_fn)(unsigned long, unsigned long) =
static void sh4_flush_icache_range(void *args)
{
struct flusher_data *data = args;
- int icacheaddr;
unsigned long start, end;
unsigned long flags, v;
int i;
@@ -54,36 +53,40 @@ static void sh4_flush_icache_range(void *args)
start = data->addr1;
end = data->addr2;
- /* If there are too many pages then just blow the caches */
- if (((end - start) >> PAGE_SHIFT) >= MAX_ICACHE_PAGES) {
- local_flush_cache_all(args);
- } else {
- /* selectively flush d-cache then invalidate the i-cache */
- /* this is inefficient, so only use for small ranges */
- start &= ~(L1_CACHE_BYTES-1);
- end += L1_CACHE_BYTES-1;
- end &= ~(L1_CACHE_BYTES-1);
-
- local_irq_save(flags);
- jump_to_uncached();
-
- for (v = start; v < end; v+=L1_CACHE_BYTES) {
- asm volatile("ocbwb %0"
- : /* no output */
- : "m" (__m(v)));
-
- icacheaddr = CACHE_IC_ADDRESS_ARRAY | (
- v & cpu_data->icache.entry_mask);
-
- for (i = 0; i < cpu_data->icache.ways;
- i++, icacheaddr += cpu_data->icache.way_incr)
- /* Clear i-cache line valid-bit */
- ctrl_outl(0, icacheaddr);
- }
-
- back_to_cached();
- local_irq_restore(flags);
+ /* If there are too many pages then just blow away the caches */
+ if (((end - start) >> PAGE_SHIFT) >= MAX_ICACHE_PAGES) {
+ local_flush_cache_all(NULL);
+ return;
+ }
+
+ /*
+ * Selectively flush d-cache then invalidate the i-cache.
+ * This is inefficient, so only use this for small ranges.
+ */
+ start &= ~(L1_CACHE_BYTES-1);
+ end += L1_CACHE_BYTES-1;
+ end &= ~(L1_CACHE_BYTES-1);
+
+ local_irq_save(flags);
+ jump_to_uncached();
+
+ for (v = start; v < end; v += L1_CACHE_BYTES) {
+ unsigned long icacheaddr;
+
+ __ocbwb(v);
+
+ icacheaddr = CACHE_IC_ADDRESS_ARRAY | (v &
+ cpu_data->icache.entry_mask);
+
+ /* Clear i-cache line valid-bit */
+ for (i = 0; i < cpu_data->icache.ways; i++) {
+ __raw_writel(0, icacheaddr);
+ icacheaddr += cpu_data->icache.way_incr;
+ }
}
+
+ back_to_cached();
+ local_irq_restore(flags);
}
static inline void flush_cache_4096(unsigned long start,