diff options
Diffstat (limited to 'main/common/cache.c')
| -rw-r--r-- | main/common/cache.c | 102 |
1 files changed, 53 insertions, 49 deletions
diff --git a/main/common/cache.c b/main/common/cache.c index 5f230bf..0ed9c97 100644 --- a/main/common/cache.c +++ b/main/common/cache.c @@ -1,7 +1,7 @@ /************************************************************************** * * Copyright (c) 2013 Alcatel-Lucent - * + * * Alcatel Lucent licenses this file to You under the Apache License, * Version 2.0 (the "License"); you may not use this file except in * compliance with the License. A copy of the License is contained the @@ -19,25 +19,25 @@ ************************************************************************** * * cache.c: - * This code is the front-end to CPU-specific code that may or may not - * support basic I & D cache operations. Various facilities in the + * This code is the front-end to CPU-specific code that may or may not + * support basic I & D cache operations. Various facilities in the * monitor call the wrapper functions below for carrying out cpu-specific * cache operations. This code provides that wrapper allowing the other - * portions of the monitor to be unaware of what the specific CPU actually - * supports. + * portions of the monitor to be unaware of what the specific CPU actually + * supports. + * + * The cacheInit() function must be called at monitor startup, then + * cacheInit() calls cacheInitForTarget(), a function that must be provided + * by the target-specific code to fill in the CPU-specific functionality. + * This function should establish the cache as it is to be used in + * the monitor (typically i-cache enabled, d-cache disabled), plus, if + * applicable, the dcacheFlush and icacheInvalidate function pointers should + * be initialized to CPU-specific functions that match the API... * - * The cacheInit() function must be called at monitor startup, then - * cacheInit() calls cacheInitForTarget(), a function that must be provided - * by the target-specific code to fill in the CPU-specific functionality. - * This function should establish the cache as it is to be used in - * the monitor (typically i-cache enabled, d-cache disabled), plus, if - * applicable, the dcacheFlush and icacheInvalidate function pointers should - * be initialized to CPU-specific functions that match the API... - * - * int (*dcacheDisable)(void); - * int (*icacheDisable)(void); - * int (*dcacheFlush)(char *base,int size); - * int (*icacheInvalidate)(char *base, int size); + * int (*dcacheDisable)(void); + * int (*icacheDisable)(void); + * int (*dcacheFlush)(char *base,int size); + * int (*icacheInvalidate)(char *base, int size); * * * Original author: Ed Sutter (ed.sutter@alcatel-lucent.com) @@ -46,8 +46,8 @@ #include "genlib.h" #include "cache.h" -int (*dcacheFlush)(char *,int), (*icacheInvalidate)(char *, int); -int (*dcacheDisable)(void), (*icacheDisable)(void); +int (*dcacheFlush)(char *,int), (*icacheInvalidate)(char *, int); +int (*dcacheDisable)(void), (*icacheDisable)(void); /* flushDcache(): * Flush the address range specified, or if address and size are both @@ -56,12 +56,13 @@ int (*dcacheDisable)(void), (*icacheDisable)(void); int flushDcache(char *addr, int size) { - /* The dcacheFlush function pointer should be initialized in the - * port-specific function "cacheInitForTarget". - */ - if (dcacheFlush) - return(dcacheFlush(addr,size)); - return(0); + /* The dcacheFlush function pointer should be initialized in the + * port-specific function "cacheInitForTarget". + */ + if(dcacheFlush) { + return(dcacheFlush(addr,size)); + } + return(0); } /* disableDcache(): @@ -70,12 +71,13 @@ flushDcache(char *addr, int size) int disableDcache(void) { - /* The dcacheDisable function pointer should be initialized in the - * port-specific function "cacheInitForTarget". - */ - if (dcacheDisable) - return(dcacheDisable()); - return(0); + /* The dcacheDisable function pointer should be initialized in the + * port-specific function "cacheInitForTarget". + */ + if(dcacheDisable) { + return(dcacheDisable()); + } + return(0); } /* invalidateIcache(): @@ -85,12 +87,13 @@ disableDcache(void) int invalidateIcache(char *addr, int size) { - /* The icacheInvalidate function pointer should be initialized in the - * port-specific function "cacheInitForTarget". - */ - if (icacheInvalidate) - return(icacheInvalidate(addr,size)); - return(0); + /* The icacheInvalidate function pointer should be initialized in the + * port-specific function "cacheInitForTarget". + */ + if(icacheInvalidate) { + return(icacheInvalidate(addr,size)); + } + return(0); } /* disableIcache(): @@ -99,21 +102,22 @@ invalidateIcache(char *addr, int size) int disableIcache(void) { - /* The icacheDisable function pointer should be initialized in the - * port-specific function "cacheInitForTarget". - */ - if (icacheDisable) - return(icacheDisable()); - return(0); + /* The icacheDisable function pointer should be initialized in the + * port-specific function "cacheInitForTarget". + */ + if(icacheDisable) { + return(icacheDisable()); + } + return(0); } int cacheInit() { - dcacheDisable = (int(*)(void))0; - icacheDisable = (int(*)(void))0; - dcacheFlush = (int(*)(char *,int))0; - icacheInvalidate = (int(*)(char *,int))0; - cacheInitForTarget(); /* Target-specific initialization. */ - return(0); + dcacheDisable = (int(*)(void))0; + icacheDisable = (int(*)(void))0; + dcacheFlush = (int(*)(char *,int))0; + icacheInvalidate = (int(*)(char *,int))0; + cacheInitForTarget(); /* Target-specific initialization. */ + return(0); } |