sh: Account for cache aliases in flush_icache_range()

Commit Message

Matt Fleming Nov. 5, 2009, 11:14 p.m. UTC

None

Patch

diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c
index b5abe94..6bfd08d 100644
--- a/arch/sh/mm/cache-sh4.c
+++ b/arch/sh/mm/cache-sh4.c
@@ -65,6 +65,7 @@  static void __uses_jump_to_uncached sh4_flush_icache_range(void *args)
 
 	for (v = start; v < end; v += L1_CACHE_BYTES) {
 		unsigned long icacheaddr;
+		int j, n;
 
 		__ocbwb(v);
 
@@ -72,8 +73,10 @@  static void __uses_jump_to_uncached sh4_flush_icache_range(void *args)
 				cpu_data->icache.entry_mask);
 
 		/* Clear i-cache line valid-bit */
+		n = boot_cpu_data.icache.n_aliases;
 		for (i = 0; i < cpu_data->icache.ways; i++) {
-			__raw_writel(0, icacheaddr);
+			for (j = 0; j < n; j++)
+				__raw_writel(0, icacheaddr + (j * PAGE_SIZE));
 			icacheaddr += cpu_data->icache.way_incr;
 		}
 	}