98 строки
3.1 KiB
C
98 строки
3.1 KiB
C
/*
|
|
* Port on Texas Instruments TMS320C6x architecture
|
|
*
|
|
* Copyright (C) 2005, 2006, 2009, 2010, 2012 Texas Instruments Incorporated
|
|
* Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
#ifndef _ASM_C6X_CACHE_H
|
|
#define _ASM_C6X_CACHE_H
|
|
|
|
#include <linux/irqflags.h>
|
|
#include <linux/init.h>
|
|
|
|
/*
|
|
* Cache line size
|
|
*/
|
|
#define L1D_CACHE_SHIFT 6
|
|
#define L1D_CACHE_BYTES (1 << L1D_CACHE_SHIFT)
|
|
|
|
#define L1P_CACHE_SHIFT 5
|
|
#define L1P_CACHE_BYTES (1 << L1P_CACHE_SHIFT)
|
|
|
|
#define L2_CACHE_SHIFT 7
|
|
#define L2_CACHE_BYTES (1 << L2_CACHE_SHIFT)
|
|
|
|
/*
|
|
* L2 used as cache
|
|
*/
|
|
#define L2MODE_SIZE L2MODE_256K_CACHE
|
|
|
|
/*
|
|
* For practical reasons the L1_CACHE_BYTES defines should not be smaller than
|
|
* the L2 line size
|
|
*/
|
|
#define L1_CACHE_SHIFT L2_CACHE_SHIFT
|
|
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
|
|
|
|
#define L2_CACHE_ALIGN_LOW(x) \
|
|
(((x) & ~(L2_CACHE_BYTES - 1)))
|
|
#define L2_CACHE_ALIGN_UP(x) \
|
|
(((x) + (L2_CACHE_BYTES - 1)) & ~(L2_CACHE_BYTES - 1))
|
|
#define L2_CACHE_ALIGN_CNT(x) \
|
|
(((x) + (sizeof(int) - 1)) & ~(sizeof(int) - 1))
|
|
|
|
#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
|
|
#define ARCH_SLAB_MINALIGN L1_CACHE_BYTES
|
|
|
|
/*
|
|
* This is the granularity of hardware cacheability control.
|
|
*/
|
|
#define CACHEABILITY_ALIGN 0x01000000
|
|
|
|
/*
|
|
* Align a physical address to MAR regions
|
|
*/
|
|
#define CACHE_REGION_START(v) \
|
|
(((u32) (v)) & ~(CACHEABILITY_ALIGN - 1))
|
|
#define CACHE_REGION_END(v) \
|
|
(((u32) (v) + (CACHEABILITY_ALIGN - 1)) & ~(CACHEABILITY_ALIGN - 1))
|
|
|
|
extern void __init c6x_cache_init(void);
|
|
|
|
extern void enable_caching(unsigned long start, unsigned long end);
|
|
extern void disable_caching(unsigned long start, unsigned long end);
|
|
|
|
extern void L1_cache_off(void);
|
|
extern void L1_cache_on(void);
|
|
|
|
extern void L1P_cache_global_invalidate(void);
|
|
extern void L1D_cache_global_invalidate(void);
|
|
extern void L1D_cache_global_writeback(void);
|
|
extern void L1D_cache_global_writeback_invalidate(void);
|
|
extern void L2_cache_set_mode(unsigned int mode);
|
|
extern void L2_cache_global_writeback_invalidate(void);
|
|
extern void L2_cache_global_writeback(void);
|
|
|
|
extern void L1P_cache_block_invalidate(unsigned int start, unsigned int end);
|
|
extern void L1D_cache_block_invalidate(unsigned int start, unsigned int end);
|
|
extern void L1D_cache_block_writeback_invalidate(unsigned int start,
|
|
unsigned int end);
|
|
extern void L1D_cache_block_writeback(unsigned int start, unsigned int end);
|
|
extern void L2_cache_block_invalidate(unsigned int start, unsigned int end);
|
|
extern void L2_cache_block_writeback(unsigned int start, unsigned int end);
|
|
extern void L2_cache_block_writeback_invalidate(unsigned int start,
|
|
unsigned int end);
|
|
extern void L2_cache_block_invalidate_nowait(unsigned int start,
|
|
unsigned int end);
|
|
extern void L2_cache_block_writeback_nowait(unsigned int start,
|
|
unsigned int end);
|
|
|
|
extern void L2_cache_block_writeback_invalidate_nowait(unsigned int start,
|
|
unsigned int end);
|
|
|
|
#endif /* _ASM_C6X_CACHE_H */
|