sh: Convert SH7705 extended mode to new cacheflush interface.

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

3 files changed, 30 insertions, 45 deletions

diff --git a/arch/sh/include/cpu-sh3/cpu/cacheflush.h b/arch/sh/include/cpu-sh3/cpu/cacheflush.h
deleted file mode 100644
index 0f5cf5460d05..000000000000
--- a/arch/sh/include/cpu-sh3/cpu/cacheflush.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * include/asm-sh/cpu-sh3/cacheflush.h
- *
- * Copyright (C) 1999 Niibe Yutaka
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#ifndef __ASM_CPU_SH3_CACHEFLUSH_H
-#define __ASM_CPU_SH3_CACHEFLUSH_H
-
-#if defined(CONFIG_SH7705_CACHE_32KB)
-/* SH7705 is an SH3 processor with 32KB cache. This has alias issues like the
- * SH4. Unlike the SH4 this is a unified cache so we need to do some work
- * in mmap when 'exec'ing a new binary
- */
-void flush_cache_all(void);
-void flush_cache_mm(struct mm_struct *mm);
-#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
-void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
-                              unsigned long end);
-void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn);
-void flush_dcache_page(struct page *pg);
-void flush_icache_range(unsigned long start, unsigned long end);
-void flush_icache_page(struct vm_area_struct *vma, struct page *page);
-
-/* SH3 has unified cache so no special action needed here */
-#define flush_cache_sigtramp(vaddr)             do { } while (0)
-
-#else
-#include <cpu-common/cpu/cacheflush.h>
-#endif
-
-#endif /* __ASM_CPU_SH3_CACHEFLUSH_H */
diff --git a/arch/sh/mm/cache-sh7705.c b/arch/sh/mm/cache-sh7705.c
index fa37bff306b9..f1d5c803c04b 100644
--- a/arch/sh/mm/cache-sh7705.c
+++ b/arch/sh/mm/cache-sh7705.c
@@ -64,7 +64,7 @@ static inline void cache_wback_all(void)
  *
  * Called from kernel/module.c:sys_init_module and routine for a.out format.
  */
-void flush_icache_range(unsigned long start, unsigned long end)
+static void sh7705_flush_icache_range(unsigned long start, unsigned long end)
 {
         __flush_wback_region((void *)start, end - start);
 }
@@ -72,7 +72,7 @@ void flush_icache_range(unsigned long start, unsigned long end)
 /*
  * Writeback&Invalidate the D-cache of the page
  */
-static void __uses_jump_to_uncached __flush_dcache_page(unsigned long phys)
+static void __flush_dcache_page(unsigned long phys)
 {
         unsigned long ways, waysize, addrstart;
         unsigned long flags;
@@ -127,7 +127,7 @@ static void __uses_jump_to_uncached __flush_dcache_page(unsigned long phys)
  * Write back & invalidate the D-cache of the page.
  * (To avoid "alias" issues)
  */
-void flush_dcache_page(struct page *page)
+static void sh7705_flush_dcache_page(struct page *page)
 {
         struct address_space *mapping = page_mapping(page);
 
@@ -137,7 +137,7 @@ void flush_dcache_page(struct page *page)
                 __flush_dcache_page(PHYSADDR(page_address(page)));
 }
 
-void __uses_jump_to_uncached flush_cache_all(void)
+static void sh7705_flush_cache_all(void)
 {
         unsigned long flags;
 
@@ -149,7 +149,7 @@ void __uses_jump_to_uncached flush_cache_all(void)
         local_irq_restore(flags);
 }
 
-void flush_cache_mm(struct mm_struct *mm)
+static void sh7705_flush_cache_mm(struct mm_struct *mm)
 {
         /* Is there any good way? */
         /* XXX: possibly call flush_cache_range for each vm area */
@@ -165,8 +165,8 @@ void flush_cache_mm(struct mm_struct *mm)
  * Flushing the cache lines for U0 only isn't enough.
  * We need to flush for P1 too, which may contain aliases.
  */
-void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
-                       unsigned long end)
+static void sh7705_flush_cache_range(struct vm_area_struct *vma,
+                        unsigned long start, unsigned long end)
 {
 
         /*
@@ -184,8 +184,8 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
  *
  * ADDRESS: Virtual Address (U0 address)
  */
-void flush_cache_page(struct vm_area_struct *vma, unsigned long address,
-                      unsigned long pfn)
+static void sh7705_flush_cache_page(struct vm_area_struct *vma,
+                unsigned long address, unsigned long pfn)
 {
         __flush_dcache_page(pfn << PAGE_SHIFT);
 }
@@ -198,7 +198,20 @@ void flush_cache_page(struct vm_area_struct *vma, unsigned long address,
  * Not entirely sure why this is necessary on SH3 with 32K cache but
  * without it we get occasional "Memory fault" when loading a program.
  */
-void flush_icache_page(struct vm_area_struct *vma, struct page *page)
+static void sh7705_flush_icache_page(struct vm_area_struct *vma,
+                                     struct page *page)
 {
         __flush_purge_region(page_address(page), PAGE_SIZE);
 }
+
+void __init sh7705_cache_init(void)
+{
+        flush_icache_range      = sh7705_flush_icache_range;
+        flush_dcache_page       = sh7705_flush_dcache_page;
+        flush_cache_all         = sh7705_flush_cache_all;
+        flush_cache_mm          = sh7705_flush_cache_mm;
+        flush_cache_dup_mm      = sh7705_flush_cache_mm;
+        flush_cache_range       = sh7705_flush_cache_range;
+        flush_cache_page        = sh7705_flush_cache_page;
+        flush_icache_page       = sh7705_flush_icache_page;
+}
diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c
index c9480b48c746..8618ccdc1ca5 100644
--- a/arch/sh/mm/cache.c
+++ b/arch/sh/mm/cache.c
@@ -260,6 +260,13 @@ void __init cpu_cache_init(void)
                 extern void __weak sh3_cache_init(void);
 
                 sh3_cache_init();
+
+                if ((boot_cpu_data.type == CPU_SH7705) &&
+                    (boot_cpu_data.dcache.sets == 512)) {
+                        extern void __weak sh7705_cache_init(void);
+
+                        sh7705_cache_init();
+                }
         }
 
         if ((boot_cpu_data.family == CPU_FAMILY_SH4) ||