37 lines
710 B
C
37 lines
710 B
C
/*
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef __X86_CACHE_H__
|
|
#define __X86_CACHE_H__
|
|
|
|
/*
|
|
* If CONFIG_SYS_CACHELINE_SIZE is defined use it for DMA alignment. Otherwise
|
|
* use 64-bytes, a safe default for x86.
|
|
*/
|
|
#ifdef CONFIG_SYS_CACHELINE_SIZE
|
|
#define ARCH_DMA_MINALIGN CONFIG_SYS_CACHELINE_SIZE
|
|
#else
|
|
#define ARCH_DMA_MINALIGN 64
|
|
#endif
|
|
|
|
static inline void wbinvd(void)
|
|
{
|
|
asm volatile ("wbinvd" : : : "memory");
|
|
}
|
|
|
|
static inline void invd(void)
|
|
{
|
|
asm volatile("invd" : : : "memory");
|
|
}
|
|
|
|
/* Enable caches and write buffer */
|
|
void enable_caches(void);
|
|
|
|
/* Disable caches and write buffer */
|
|
void disable_caches(void);
|
|
|
|
#endif /* __X86_CACHE_H__ */
|