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git.ipfire.org Git - people/ms/u-boot.git/blob - arch/avr32/include/asm/arch-at32ap700x/cacheflush.h
2 * Copyright (C) 2006 Atmel Corporation
4 * SPDX-License-Identifier: GPL-2.0+
6 #ifndef __ASM_AVR32_CACHEFLUSH_H
7 #define __ASM_AVR32_CACHEFLUSH_H
10 * Invalidate any cacheline containing virtual address vaddr without
11 * writing anything back to memory.
13 * Note that this function may corrupt unrelated data structures when
14 * applied on buffers that are not cacheline aligned in both ends.
16 static inline void dcache_invalidate_line(volatile void *vaddr
)
18 asm volatile("cache %0[0], 0x0b" : : "r"(vaddr
) : "memory");
22 * Make sure any cacheline containing virtual address vaddr is written
25 static inline void dcache_clean_line(volatile void *vaddr
)
27 asm volatile("cache %0[0], 0x0c" : : "r"(vaddr
) : "memory");
31 * Make sure any cacheline containing virtual address vaddr is written
32 * to memory and then invalidate it.
34 static inline void dcache_flush_line(volatile void *vaddr
)
36 asm volatile("cache %0[0], 0x0d" : : "r"(vaddr
) : "memory");
40 * Invalidate any instruction cacheline containing virtual address
43 static inline void icache_invalidate_line(volatile void *vaddr
)
45 asm volatile("cache %0[0], 0x01" : : "r"(vaddr
) : "memory");
49 * Applies the above functions on all lines that are touched by the
50 * specified virtual address range.
52 void dcache_clean_range(volatile void *start
, size_t len
);
53 void icache_invalidate_range(volatile void *start
, size_t len
);
55 static inline void dcache_flush_unlocked(void)
57 asm volatile("cache %0[5], 0x08" : : "r"(0) : "memory");
61 * Make sure any pending writes are completed before continuing.
63 #define sync_write_buffer() asm volatile("sync 0" : : : "memory")
65 #endif /* __ASM_AVR32_CACHEFLUSH_H */