arch/tile: Split the icache flush code off to a generic <arch> header.

This code is used in other places in our system than in Linux, so
to share it we now implement it as an inline function in our low-level
<arch> headers, and instantiate it in one file in Linux's arch/tile/lib.
The file is now cacheflush.c and is C code rather than the strangely-named
and assembler-implemented __invalidate_icache.S.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 2 insertions, 7 deletions

diff --git a/arch/tile/include/asm/cacheflush.h b/arch/tile/include/asm/cacheflush.h
index 7e2096a..c5741da4 100644
--- a/arch/tile/include/asm/cacheflush.h
+++ b/arch/tile/include/asm/cacheflush.h
@@ -21,6 +21,7 @@
 #include <linux/mm.h>
 #include <linux/cache.h>
 #include <asm/system.h>
+#include <arch/icache.h>
 
 /* Caches are physically-indexed and so don't need special treatment */
 #define flush_cache_all()			do { } while (0)
@@ -37,14 +38,8 @@
 #define flush_icache_page(vma, pg)		do { } while (0)
 #define flush_icache_user_range(vma, pg, adr, len)	do { } while (0)
 
-/* See "arch/tile/lib/__invalidate_icache.S". */
-extern void __invalidate_icache(unsigned long start, unsigned long size);
-
 /* Flush the icache just on this cpu */
-static inline void __flush_icache_range(unsigned long start, unsigned long end)
-{
-	__invalidate_icache(start, end - start);
-}
+extern void __flush_icache_range(unsigned long start, unsigned long end);
 
 /* Flush the entire icache on this cpu. */
 #define __flush_icache() __flush_icache_range(0, CHIP_L1I_CACHE_SIZE())