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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [hal/] [sparc/] [erc32/] [v2_0/] [include/] [hal_cache.h] - Rev 174
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#ifndef CYGONCE_HAL_CACHE_H #define CYGONCE_HAL_CACHE_H //============================================================================= // // hal_cache.h // // HAL Cache control support (such as it is in the simulator) // //============================================================================= //####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. // // eCos is free software; you can redistribute it and/or modify it under // the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 or (at your option) any later version. // // eCos is distributed in the hope that it will be useful, but WITHOUT ANY // WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License along // with eCos; if not, write to the Free Software Foundation, Inc., // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. // // As a special exception, if other files instantiate templates or use macros // or inline functions from this file, or you compile this file and link it // with other works to produce a work based on this file, this file does not // by itself cause the resulting work to be covered by the GNU General Public // License. However the source code for this file must still be made available // in accordance with section (3) of the GNU General Public License. // // This exception does not invalidate any other reasons why a work based on // this file might be covered by the GNU General Public License. // // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. // at http://sources.redhat.com/ecos/ecos-license/ // ------------------------------------------- //####ECOSGPLCOPYRIGHTEND#### //============================================================================= //#####DESCRIPTIONBEGIN#### // // Author(s): nickg, gthomas, hmt // Contributors: nickg, gthomas, hmt // Date: 1999-01-28 // Purpose: Define Interrupt support // Description: The macros defined here provide the HAL APIs for handling // the caches. // // Usage: // #include <cyg/hal/hal_cache.h> // ... // // //####DESCRIPTIONEND#### // //============================================================================= #include <pkgconf/hal.h> #include <pkgconf/hal_sparc.h> #include <cyg/infra/cyg_type.h> //----------------------------------------------------------------------------- // SPARC cache macros //----------------------------------------------------------------------------- // Cache dimensions // Data cache #define HAL_DCACHE_SIZE 0x800 // Size of data cache in bytes #define HAL_DCACHE_LINE_SIZE 4 // Size of a data cache line #define HAL_DCACHE_WAYS 4 // Associativity of the cache // Instruction cache #define HAL_ICACHE_SIZE 0x800 // Size of cache in bytes #define HAL_ICACHE_LINE_SIZE 4 // Size of a cache line #define HAL_ICACHE_WAYS 4 // Associativity of the cache #define HAL_DCACHE_SETS (HAL_DCACHE_SIZE/(HAL_DCACHE_LINE_SIZE*HAL_DCACHE_WAYS)) #define HAL_ICACHE_SETS (HAL_ICACHE_SIZE/(HAL_ICACHE_LINE_SIZE*HAL_ICACHE_WAYS)) //----------------------------------------------------------------------------- // Global control of data cache // Enable the data cache #define HAL_DCACHE_ENABLE() // Disable the data cache #define HAL_DCACHE_DISABLE() // Invalidate the entire cache #define HAL_DCACHE_INVALIDATE_ALL() // Synchronize the contents of the cache with memory. #define HAL_DCACHE_SYNC() // Set the data cache refill burst size //#define HAL_DCACHE_BURST_SIZE(_size_) // Set the data cache write mode //#define HAL_DCACHE_WRITE_MODE( _mode_ ) //#define HAL_DCACHE_WRITETHRU_MODE 0 //#define HAL_DCACHE_WRITEBACK_MODE 1 // Load the contents of the given address range into the data cache // and then lock the cache so that it stays there. //#define HAL_DCACHE_LOCK(_base_, _size_) // Undo a previous lock operation //#define HAL_DCACHE_UNLOCK(_base_, _size_) // Unlock entire cache //#define HAL_DCACHE_UNLOCK_ALL() //----------------------------------------------------------------------------- // Data cache line control // Allocate cache lines for the given address range without reading its // contents from memory. //#define HAL_DCACHE_ALLOCATE( _base_ , _size_ ) // Write dirty cache lines to memory and invalidate the cache entries // for the given address range. //#define HAL_DCACHE_FLUSH( _base_ , _size_ ) // Invalidate cache lines in the given range without writing to memory. //#define HAL_DCACHE_INVALIDATE( _base_ , _size_ ) // Write dirty cache lines to memory for the given address range. //#define HAL_DCACHE_STORE( _base_ , _size_ ) // Preread the given range into the cache with the intention of reading // from it later. //#define HAL_DCACHE_READ_HINT( _base_ , _size_ ) // Preread the given range into the cache with the intention of writing // to it later. //#define HAL_DCACHE_WRITE_HINT( _base_ , _size_ ) // Allocate and zero the cache lines associated with the given range. //#define HAL_DCACHE_ZERO( _base_ , _size_ ) //----------------------------------------------------------------------------- // Global control of Instruction cache - use Data cache controls since they // are not separatable. // Enable the instruction cache #define HAL_ICACHE_ENABLE() HAL_DCACHE_ENABLE() // Disable the instruction cache #define HAL_ICACHE_DISABLE() HAL_DCACHE_DISABLE() // Invalidate the entire cache #define HAL_ICACHE_INVALIDATE_ALL() HAL_DCACHE_SYNC(); HAL_DCACHE_INVALIDATE_ALL() // Synchronize the contents of the cache with memory. #define HAL_ICACHE_SYNC() // Set the instruction cache refill burst size //#define HAL_ICACHE_BURST_SIZE(_size_) // Load the contents of the given address range into the instruction cache // and then lock the cache so that it stays there. //#define HAL_ICACHE_LOCK(_base_, _size_) // Undo a previous lock operation //#define HAL_ICACHE_UNLOCK(_base_, _size_) // Unlock entire cache //#define HAL_ICACHE_UNLOCK_ALL() //----------------------------------------------------------------------------- // Instruction cache line control // Invalidate cache lines in the given range without writing to memory. //#define HAL_ICACHE_INVALIDATE( _base_ , _size_ ) //----------------------------------------------------------------------------- #endif // ifndef CYGONCE_HAL_CACHE_H // End of hal_cache.h