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-rw-r--r--arch/avr32/mm/cache.c163
1 files changed, 0 insertions, 163 deletions
diff --git a/arch/avr32/mm/cache.c b/arch/avr32/mm/cache.c
deleted file mode 100644
index d9476825fc43..000000000000
--- a/arch/avr32/mm/cache.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/highmem.h>
-#include <linux/unistd.h>
-
-#include <asm/cacheflush.h>
-#include <asm/cachectl.h>
-#include <asm/processor.h>
-#include <linux/uaccess.h>
-#include <asm/syscalls.h>
-
-/*
- * If you attempt to flush anything more than this, you need superuser
- * privileges. The value is completely arbitrary.
- */
-#define CACHEFLUSH_MAX_LEN 1024
-
-void invalidate_dcache_region(void *start, size_t size)
-{
- unsigned long v, begin, end, linesz, mask;
-
- linesz = boot_cpu_data.dcache.linesz;
- mask = linesz - 1;
-
- /* when first and/or last cachelines are shared, flush them
- * instead of invalidating ... never discard valid data!
- */
- begin = (unsigned long)start;
- end = begin + size;
-
- if (begin & mask) {
- flush_dcache_line(start);
- begin += linesz;
- }
- if (end & mask) {
- flush_dcache_line((void *)end);
- end &= ~mask;
- }
-
- /* remaining cachelines only need invalidation */
- for (v = begin; v < end; v += linesz)
- invalidate_dcache_line((void *)v);
- flush_write_buffer();
-}
-
-void clean_dcache_region(void *start, size_t size)
-{
- unsigned long v, begin, end, linesz;
-
- linesz = boot_cpu_data.dcache.linesz;
- begin = (unsigned long)start & ~(linesz - 1);
- end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
-
- for (v = begin; v < end; v += linesz)
- clean_dcache_line((void *)v);
- flush_write_buffer();
-}
-
-void flush_dcache_region(void *start, size_t size)
-{
- unsigned long v, begin, end, linesz;
-
- linesz = boot_cpu_data.dcache.linesz;
- begin = (unsigned long)start & ~(linesz - 1);
- end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
-
- for (v = begin; v < end; v += linesz)
- flush_dcache_line((void *)v);
- flush_write_buffer();
-}
-
-void invalidate_icache_region(void *start, size_t size)
-{
- unsigned long v, begin, end, linesz;
-
- linesz = boot_cpu_data.icache.linesz;
- begin = (unsigned long)start & ~(linesz - 1);
- end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
-
- for (v = begin; v < end; v += linesz)
- invalidate_icache_line((void *)v);
-}
-
-static inline void __flush_icache_range(unsigned long start, unsigned long end)
-{
- unsigned long v, linesz;
-
- linesz = boot_cpu_data.dcache.linesz;
- for (v = start; v < end; v += linesz) {
- clean_dcache_line((void *)v);
- invalidate_icache_line((void *)v);
- }
-
- flush_write_buffer();
-}
-
-/*
- * This one is called after a module has been loaded.
- */
-void flush_icache_range(unsigned long start, unsigned long end)
-{
- unsigned long linesz;
-
- linesz = boot_cpu_data.dcache.linesz;
- __flush_icache_range(start & ~(linesz - 1),
- (end + linesz - 1) & ~(linesz - 1));
-}
-EXPORT_SYMBOL(flush_icache_range);
-
-/*
- * This one is called from __do_fault() and do_swap_page().
- */
-void flush_icache_page(struct vm_area_struct *vma, struct page *page)
-{
- if (vma->vm_flags & VM_EXEC) {
- void *v = page_address(page);
- __flush_icache_range((unsigned long)v, (unsigned long)v + PAGE_SIZE);
- }
-}
-
-asmlinkage int sys_cacheflush(int operation, void __user *addr, size_t len)
-{
- int ret;
-
- if (len > CACHEFLUSH_MAX_LEN) {
- ret = -EPERM;
- if (!capable(CAP_SYS_ADMIN))
- goto out;
- }
-
- ret = -EFAULT;
- if (!access_ok(VERIFY_WRITE, addr, len))
- goto out;
-
- switch (operation) {
- case CACHE_IFLUSH:
- flush_icache_range((unsigned long)addr,
- (unsigned long)addr + len);
- ret = 0;
- break;
- default:
- ret = -EINVAL;
- }
-
-out:
- return ret;
-}
-
-void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
- unsigned long vaddr, void *dst, const void *src,
- unsigned long len)
-{
- memcpy(dst, src, len);
- if (vma->vm_flags & VM_EXEC)
- flush_icache_range((unsigned long)dst,
- (unsigned long)dst + len);
-}