1 files changed, 0 insertions, 251 deletions
diff --git a/arch/metag/include/asm/cacheflush.h b/arch/metag/include/asm/cacheflush.h
deleted file mode 100644
index 2584a51eca1a..000000000000
--- a/arch/metag/include/asm/cacheflush.h
+++ /dev/null
@@ -1,251 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _METAG_CACHEFLUSH_H
-#define _METAG_CACHEFLUSH_H
-
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/io.h>
-
-#include <asm/l2cache.h>
-#include <asm/metag_isa.h>
-#include <asm/metag_mem.h>
-
-void metag_cache_probe(void);
-
-void metag_data_cache_flush_all(const void *start);
-void metag_code_cache_flush_all(const void *start);
-
-/*
- * Routines to flush physical cache lines that may be used to cache data or code
- * normally accessed via the linear address range supplied. The region flushed
- * must either lie in local or global address space determined by the top bit of
- * the pStart address. If Bytes is >= 4K then the whole of the related cache
- * state will be flushed rather than a limited range.
- */
-void metag_data_cache_flush(const void *start, int bytes);
-void metag_code_cache_flush(const void *start, int bytes);
-
-#ifdef CONFIG_METAG_META12
-
-/* Write through, virtually tagged, split I/D cache. */
-
-static inline void __flush_cache_all(void)
-{
-	metag_code_cache_flush_all((void *) PAGE_OFFSET);
-	metag_data_cache_flush_all((void *) PAGE_OFFSET);
-}
-
-#define flush_cache_all() __flush_cache_all()
-
-/* flush the entire user address space referenced in this mm structure */
-static inline void flush_cache_mm(struct mm_struct *mm)
-{
-	if (mm == current->mm)
-		__flush_cache_all();
-}
-
-#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
-
-/* flush a range of addresses from this mm */
-static inline void flush_cache_range(struct vm_area_struct *vma,
-				     unsigned long start, unsigned long end)
-{
-	flush_cache_mm(vma->vm_mm);
-}
-
-static inline void flush_cache_page(struct vm_area_struct *vma,
-				    unsigned long vmaddr, unsigned long pfn)
-{
-	flush_cache_mm(vma->vm_mm);
-}
-
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE	1
-static inline void flush_dcache_page(struct page *page)
-{
-	metag_data_cache_flush_all((void *) PAGE_OFFSET);
-}
-
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
-
-static inline void flush_icache_page(struct vm_area_struct *vma,
-				     struct page *page)
-{
-	metag_code_cache_flush(page_to_virt(page), PAGE_SIZE);
-}
-
-static inline void flush_cache_vmap(unsigned long start, unsigned long end)
-{
-	metag_data_cache_flush_all((void *) PAGE_OFFSET);
-}
-
-static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
-{
-	metag_data_cache_flush_all((void *) PAGE_OFFSET);
-}
-
-#else
-
-/* Write through, physically tagged, split I/D cache. */
-
-#define flush_cache_all()			do { } while (0)
-#define flush_cache_mm(mm)			do { } while (0)
-#define flush_cache_dup_mm(mm)			do { } while (0)
-#define flush_cache_range(vma, start, end)	do { } while (0)
-#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
-#define flush_icache_page(vma, pg)		do { } while (0)
-#define flush_cache_vmap(start, end)		do { } while (0)
-#define flush_cache_vunmap(start, end)		do { } while (0)
-
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE	1
-static inline void flush_dcache_page(struct page *page)
-{
-	/* FIXME: We can do better than this. All we are trying to do is
-	 * make the i-cache coherent, we should use the PG_arch_1 bit like
-	 * e.g. powerpc.
-	 */
-#ifdef CONFIG_SMP
-	metag_out32(1, SYSC_ICACHE_FLUSH);
-#else
-	metag_code_cache_flush_all((void *) PAGE_OFFSET);
-#endif
-}
-
-#endif
-
-/* Push n pages at kernel virtual address and clear the icache */
-static inline void flush_icache_range(unsigned long address,
-				      unsigned long endaddr)
-{
-#ifdef CONFIG_SMP
-	metag_out32(1, SYSC_ICACHE_FLUSH);
-#else
-	metag_code_cache_flush((void *) address, endaddr - address);
-#endif
-}
-
-static inline void flush_cache_sigtramp(unsigned long addr, int size)
-{
-	/*
-	 * Flush the icache in case there was previously some code
-	 * fetched from this address, perhaps a previous sigtramp.
-	 *
-	 * We don't need to flush the dcache, it's write through and
-	 * we just wrote the sigtramp code through it.
-	 */
-#ifdef CONFIG_SMP
-	metag_out32(1, SYSC_ICACHE_FLUSH);
-#else
-	metag_code_cache_flush((void *) addr, size);
-#endif
-}
-
-#ifdef CONFIG_METAG_L2C
-
-/*
- * Perform a single specific CACHEWD operation on an address, masking lower bits
- * of address first.
- */
-static inline void cachewd_line(void *addr, unsigned int data)
-{
-	unsigned long masked = (unsigned long)addr & -0x40;
-	__builtin_meta2_cachewd((void *)masked, data);
-}
-
-/* Perform a certain CACHEW op on each cache line in a range */
-static inline void cachew_region_op(void *start, unsigned long size,
-				    unsigned int op)
-{
-	unsigned long offset = (unsigned long)start & 0x3f;
-	int i;
-	if (offset) {
-		size += offset;
-		start -= offset;
-	}
-	i = (size - 1) >> 6;
-	do {
-		__builtin_meta2_cachewd(start, op);
-		start += 0x40;
-	} while (i--);
-}
-
-/* prevent write fence and flushbacks being reordered in L2 */
-static inline void l2c_fence_flush(void *addr)
-{
-	/*
-	 * Synchronise by reading back and re-flushing.
-	 * It is assumed this access will miss, as the caller should have just
-	 * flushed the cache line.
-	 */
-	(void)(volatile u8 *)addr;
-	cachewd_line(addr, CACHEW_FLUSH_L1D_L2);
-}
-
-/* prevent write fence and writebacks being reordered in L2 */
-static inline void l2c_fence(void *addr)
-{
-	/*
-	 * A write back has occurred, but not necessarily an invalidate, so the
-	 * readback in l2c_fence_flush() would hit in the cache and have no
-	 * effect. Therefore fully flush the line first.
-	 */
-	cachewd_line(addr, CACHEW_FLUSH_L1D_L2);
-	l2c_fence_flush(addr);
-}
-
-/* Used to keep memory consistent when doing DMA. */
-static inline void flush_dcache_region(void *start, unsigned long size)
-{
-	/* metag_data_cache_flush won't flush L2 cache lines if size >= 4096 */
-	if (meta_l2c_is_enabled()) {
-		cachew_region_op(start, size, CACHEW_FLUSH_L1D_L2);
-		if (meta_l2c_is_writeback())
-			l2c_fence_flush(start + size - 1);
-	} else {
-		metag_data_cache_flush(start, size);
-	}
-}
-
-/* Write back dirty lines to memory (or do nothing if no writeback caches) */
-static inline void writeback_dcache_region(void *start, unsigned long size)
-{
-	if (meta_l2c_is_enabled() && meta_l2c_is_writeback()) {
-		cachew_region_op(start, size, CACHEW_WRITEBACK_L1D_L2);
-		l2c_fence(start + size - 1);
-	}
-}
-
-/* Invalidate (may also write back if necessary) */
-static inline void invalidate_dcache_region(void *start, unsigned long size)
-{
-	if (meta_l2c_is_enabled())
-		cachew_region_op(start, size, CACHEW_INVALIDATE_L1D_L2);
-	else
-		metag_data_cache_flush(start, size);
-}
-#else
-#define flush_dcache_region(s, l)	metag_data_cache_flush((s), (l))
-#define writeback_dcache_region(s, l)	do {} while (0)
-#define invalidate_dcache_region(s, l)	flush_dcache_region((s), (l))
-#endif
-
-static inline 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);
-	flush_icache_range((unsigned long)dst, (unsigned long)dst + len);
-}
-
-static inline void copy_from_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);
-}
-
-#endif /* _METAG_CACHEFLUSH_H */