sh: Get SH-5 caches working again post-unification.

A number of cleanups to get the SH-5 cache management code in line with
the rest of the SH backend.

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

3 files changed, 9 insertions, 5 deletions

diff --git a/include/asm-sh/cpu-sh5/cacheflush.h b/include/asm-sh/cpu-sh5/cacheflush.h
index f935acbacf38..5a11f0b7e66a 100644
--- a/include/asm-sh/cpu-sh5/cacheflush.h
+++ b/include/asm-sh/cpu-sh5/cacheflush.h
@@ -3,8 +3,6 @@
 
 #ifndef __ASSEMBLY__
 
-#include <asm/page.h>
-
 struct vm_area_struct;
 struct page;
 struct mm_struct;
@@ -27,7 +25,7 @@ extern void flush_icache_user_range(struct vm_area_struct *vma,
 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
 
 #define flush_icache_page(vma, page)    do { } while (0)
-#define p3_cache_init()                 do { } while (0)
+void p3_cache_init(void);
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/include/asm-sh/mmu_context_64.h b/include/asm-sh/mmu_context_64.h
index 020be744b088..9649f1c07caf 100644
--- a/include/asm-sh/mmu_context_64.h
+++ b/include/asm-sh/mmu_context_64.h
@@ -66,6 +66,9 @@ static inline void set_asid(unsigned long asid)
                       : "=r" (sr), "=r" (pc) : "0" (sr));
 }
 
+/* arch/sh/kernel/cpu/sh5/entry.S */
+extern unsigned long switch_and_save_asid(unsigned long new_asid);
+
 /* No spare register to twiddle, so use a software cache */
 extern pgd_t *mmu_pdtp_cache;
 
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h
index 134562dc8c45..304c30b5d947 100644
--- a/include/asm-sh/page.h
+++ b/include/asm-sh/page.h
@@ -55,11 +55,14 @@ extern void clear_page(void *to);
 extern void copy_page(void *to, void *from);
 
 #if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_MMU) && \
-        (defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB))
+        (defined(CONFIG_CPU_SH5) || defined(CONFIG_CPU_SH4) || \
+         defined(CONFIG_SH7705_CACHE_32KB))
 struct page;
 struct vm_area_struct;
 extern void clear_user_page(void *to, unsigned long address, struct page *page);
-#ifdef CONFIG_CPU_SH4
+extern void copy_user_page(void *to, void *from, unsigned long address,
+                           struct page *page);
+#if defined(CONFIG_CPU_SH4)
 extern void copy_user_highpage(struct page *to, struct page *from,
                                unsigned long vaddr, struct vm_area_struct *vma);
 #define __HAVE_ARCH_COPY_USER_HIGHPAGE