u-boot/arch/avr32/include/asm/arch-at32ap700x/cacheflush.h
Wolfgang Denk 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00

67 lines
1.8 KiB
C

/*
* 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_invalidate_range(volatile void *start, size_t len);
void dcache_clean_range(volatile void *start, size_t len);
void dcache_flush_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 */