260 lines
7.1 KiB
C
260 lines
7.1 KiB
C
/****************************************************************************
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* arch/arm/src/armv7-a/l2cc.h
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* Non-CP15 Registers
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_ARMV7_A_L2CC_H
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#define __ARCH_ARM_SRC_ARMV7_A_L2CC_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifdef CONFIG_ARCH_L2CACHE
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Variables
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/***************************************************************************
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* Name: up_l2ccinitialize
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*
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* Description:
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* One time configuration of the L2 cache. The L2 cache will be enabled
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* upon return.
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*
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* Input Parameters:
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* None. The L2 cache configuration is controlled by configuration
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* settings.
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*
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* Returned Value:
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* None
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*
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***************************************************************************/
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#if 0 /* Prototyped in up_internal.h */
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void up_l2ccinitialize(void);
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#endif
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/***************************************************************************
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* Name: l2cc_enable
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*
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* Description:
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* Re-enable the L2CC-P310 L2 cache by setting the enable bit in the
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* Control Register (CR)
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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***************************************************************************/
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void l2cc_enable(void);
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/***************************************************************************
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* Name: l2cc_disable
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*
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* Description:
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* Disable the L2 cache
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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***************************************************************************/
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void l2cc_disable(void);
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/***************************************************************************
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* Name: l2cc_sync
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*
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* Description:
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* Drain the L2 cache.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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***************************************************************************/
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void l2cc_sync(void);
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/***************************************************************************
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* Name: l2cc_invalidate_all
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*
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* Description:
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* Invalidate the entire L2 cache.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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***************************************************************************/
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void l2cc_invalidate_all(void);
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/***************************************************************************
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* Name: l2cc_invalidate
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*
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* Description:
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* Invalidate a range of addresses in the L2 cache
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*
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* Input Parameters:
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* startaddr - The first address to be invalidated
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* endaddr - The last address to be invalidated
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*
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* Returned Value:
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* None
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*
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***************************************************************************/
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void l2cc_invalidate(uintptr_t startaddr, uintptr_t endaddr);
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/***************************************************************************
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* Name: l2cc_clean_all
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*
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* Description:
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* Clean the entire L2 cache.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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***************************************************************************/
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void l2cc_clean_all(void);
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/***************************************************************************
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* Name: l2cc_clean
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*
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* Description:
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* Clean a range of address within the L2 cache.
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*
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* Input Parameters:
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* startaddr - The first address to be cleaned
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* endaddr - The last address to be cleaned
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*
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* Returned Value:
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* None
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*
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***************************************************************************/
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void l2cc_clean(uintptr_t startaddr, uintptr_t endaddr);
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/***************************************************************************
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* Name: l2cc_flush_all
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*
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* Description:
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* Flush the entire L2 cache.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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***************************************************************************/
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void l2cc_flush_all(void);
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/***************************************************************************
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* Name: l2cc_flush
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*
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* Description:
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* Flush a range of address within the L2 cache.
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*
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* Input Parameters:
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* startaddr - The first address to be flushed
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* endaddr - The last address to be flushed
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*
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* Returned Value:
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* None
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*
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***************************************************************************/
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void l2cc_flush(uint32_t startaddr, uint32_t endaddr);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#else /* CONFIG_ARCH_L2CACHE */
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/* Provide simple definitions to concentrate the inline conditional
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* compilation in one place.
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*/
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# define l2cc_enable()
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# define l2cc_disable()
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# define l2cc_sync()
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# define l2cc_invalidate_all()
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# define l2cc_invalidate(s,e)
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# define l2cc_clean_all()
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# define l2cc_clean(s,e)
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# define l2cc_flush_all()
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# define l2cc_flush(s,e)
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#endif /* CONFIG_ARCH_L2CACHE */
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#endif /* __ARCH_ARM_SRC_ARMV7_A_L2CC_H */
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