1/* ********************************************************************* 2 * Broadcom Common Firmware Environment (CFE) 3 * 4 * Cache operations File: cfe_cache.h 5 * 6 * Macros that we use for common cache-related operations 7 * 8 * Author: Mitch Lichtenberg 9 * 10 ********************************************************************* 11 * 12 * Copyright 2000,2001,2002,2003 13 * Broadcom Corporation. All rights reserved. 14 * 15 * This software is furnished under license and may be used and 16 * copied only in accordance with the following terms and 17 * conditions. Subject to these conditions, you may download, 18 * copy, install, use, modify and distribute modified or unmodified 19 * copies of this software in source and/or binary form. No title 20 * or ownership is transferred hereby. 21 * 22 * 1) Any source code used, modified or distributed must reproduce 23 * and retain this copyright notice and list of conditions 24 * as they appear in the source file. 25 * 26 * 2) No right is granted to use any trade name, trademark, or 27 * logo of Broadcom Corporation. The "Broadcom Corporation" 28 * name may not be used to endorse or promote products derived 29 * from this software without the prior written permission of 30 * Broadcom Corporation. 31 * 32 * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR 33 * IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED 34 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 35 * PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT 36 * SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN 37 * PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT, 38 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 39 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 40 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 41 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 42 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 43 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF 44 * THE POSSIBILITY OF SUCH DAMAGE. 45 ********************************************************************* */ 46 47#ifndef _CFE_CACHE_H 48#define _CFE_CACHE_H 49 50 51/* ********************************************************************* 52 * cfe_cacheops bits 53 * 54 * These bits are used in the "flags" parameter to the cfe_cacheops 55 * routine that eventually winds its way into the CPU package. 56 * Since they're also defined in cfe_iocb.h we duplicate them here 57 ********************************************************************* */ 58 59 60/* 61 * Duplicates from cfe_iocb.h -- warning! 62 */ 63 64#ifndef CFE_CACHE_FLUSH_D 65 66#define CFE_CACHE_FLUSH_D 1 67#define CFE_CACHE_INVAL_I 2 68#define CFE_CACHE_INVAL_D 4 69#define CFE_CACHE_INVAL_L2 8 70#define CFE_CACHE_FLUSH_L2 16 71#define CFE_CACHE_INVAL_RANGE 32 72#define CFE_CACHE_FLUSH_RANGE 64 73 74#endif 75 76 77#ifndef __ASSEMBLER__ 78 79/* ********************************************************************* 80 * Routines that implement cache operations 81 ********************************************************************* */ 82 83extern void CPUCFG_INVALRANGE(volatile void *,int); 84extern void CPUCFG_SYNCRANGE(volatile void *,int); 85 86/* ********************************************************************* 87 * cache macros 88 ********************************************************************* */ 89 90/* 91 * Macros to flush or invalidate the cache (always) 92 */ 93#define CACHE_SYNC(ptr,len) CPUCFG_SYNCRANGE((ptr),(len)) 94#define CACHE_INVAL(ptr,len) CPUCFG_INVALRANGE((ptr),(len)) 95 96/* 97 * Macros to flush or invalidate the cache depending on whether 98 * we support coherent DMA or not 99 */ 100 101#if CPUCFG_COHERENT_DMA 102#define CACHE_DMA_SYNC(ptr,len) 103#define CACHE_DMA_INVAL(ptr,len) 104#define CACHE_DMA_SHARED(ptr) (ptr) 105#define CACHE_DMA_CACHEABLE(ptr) ((uint8_t *) (ptr)) 106#else 107#define CACHE_DMA_SYNC(ptr,len) CPUCFG_SYNCRANGE((ptr),(len)) 108#define CACHE_DMA_INVAL(ptr,len) CPUCFG_INVALRANGE((ptr),(len)) 109#define CACHE_DMA_SHARED(ptr) ((uint8_t *)UNCADDR(PHYSADDR((uintptr_t)(ptr)))) 110#define CACHE_DMA_CACHEABLE(ptr) ((uint8_t *)KERNADDR(PHYSADDR((uintptr_t)(ptr)))) 111#endif 112 113#endif 114 115#endif 116