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- /*
- * Copyright (C) 2006 Atmel Corporation
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
- #ifndef __ASM_AVR32_CACHEFLUSH_H
- #define __ASM_AVR32_CACHEFLUSH_H
- /*
- * Invalidate any cacheline containing virtual address vaddr without
- * writing anything back to memory.
- *
- * Note that this function may corrupt unrelated data structures when
- * applied on buffers that are not cacheline aligned in both ends.
- */
- static inline void dcache_invalidate_line(volatile void *vaddr)
- {
- asm volatile("cache %0[0], 0x0b" : : "r"(vaddr) : "memory");
- }
- /*
- * Make sure any cacheline containing virtual address vaddr is written
- * to memory.
- */
- static inline void dcache_clean_line(volatile void *vaddr)
- {
- asm volatile("cache %0[0], 0x0c" : : "r"(vaddr) : "memory");
- }
- /*
- * Make sure any cacheline containing virtual address vaddr is written
- * to memory and then invalidate it.
- */
- static inline void dcache_flush_line(volatile void *vaddr)
- {
- asm volatile("cache %0[0], 0x0d" : : "r"(vaddr) : "memory");
- }
- /*
- * Invalidate any instruction cacheline containing virtual address
- * vaddr.
- */
- static inline void icache_invalidate_line(volatile void *vaddr)
- {
- asm volatile("cache %0[0], 0x01" : : "r"(vaddr) : "memory");
- }
- /*
- * Applies the above functions on all lines that are touched by the
- * specified virtual address range.
- */
- void dcache_clean_range(volatile void *start, size_t len);
- void icache_invalidate_range(volatile void *start, size_t len);
- static inline void dcache_flush_unlocked(void)
- {
- asm volatile("cache %0[5], 0x08" : : "r"(0) : "memory");
- }
- /*
- * Make sure any pending writes are completed before continuing.
- */
- #define sync_write_buffer() asm volatile("sync 0" : : : "memory")
- #endif /* __ASM_AVR32_CACHEFLUSH_H */
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