powerpc/32: define helpers to get L1 cache sizes.

This patch defines C helpers to retrieve the size of
cache blocks and uses them in the cacheflush functions.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 14 insertions, 2 deletions

diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index df8e4c407366..e84d1622eeb6 100644
--- a/arch/powerpc/include/asm/cache.h
+++ b/arch/powerpc/include/asm/cache.h
@@ -33,7 +33,8 @@
 
 #define IFETCH_ALIGN_BYTES      (1 << IFETCH_ALIGN_SHIFT)
 
-#if defined(__powerpc64__) && !defined(__ASSEMBLY__)
+#if !defined(__ASSEMBLY__)
+#ifdef CONFIG_PPC64
 
 struct ppc_cache_info {
         u32 size;
@@ -53,7 +54,18 @@ struct ppc64_caches {
 };
 
 extern struct ppc64_caches ppc64_caches;
-#endif /* __powerpc64__ && ! __ASSEMBLY__ */
+#else
+static inline u32 l1_cache_shift(void)
+{
+        return L1_CACHE_SHIFT;
+}
+
+static inline u32 l1_cache_bytes(void)
+{
+        return L1_CACHE_BYTES;
+}
+#endif
+#endif /* ! __ASSEMBLY__ */
 
 #if defined(__ASSEMBLY__)
 /*