Files
openharmony_kernel_liteos_a/kernel/base/include/los_vm_iomap.h
Zbigniew Bodek 07c89a8473 Fix IS_PERIPH_ADDR() and IS_MEMORY_ADDR() macros
The macros assume that constants that are compared against
"addr" are either unsigned or less than INT_MAX.
In some cases it is not true so change costants to unsigned
using U32_C macros.
The correct solution would be to change teh MEM_ADDR, PMM_BASE, etc.
to be unsigned long but currently "U" suffix is appended in various
places so the assumption is that those macros use default definition
(which is int).

Put "addr" into brackets by the way since it could be an expression
rather than one variable.

Signed-off-by: Zbigniew Bodek <zbigniew.bodek@huawei.com>
Change-Id: Ife9bc5863b4934ecaab64b24faa084b87d7d7ea5
2020-12-31 00:54:33 +08:00

64 lines
2.4 KiB
C

/*
* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __LOS_VM_IOMAP_H__
#define __LOS_VM_IOMAP_H__
#include "los_typedef.h"
#include "los_vm_zone.h"
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */
enum DmaMemType {
DMA_CACHE,
DMA_NOCACHE
};
#define IS_PERIPH_ADDR(addr) (((addr) >= U32_C(PERIPH_PMM_BASE)) && ((addr) <= U32_C(PERIPH_PMM_BASE) + U32_C(PERIPH_PMM_SIZE)))
#define IS_MEMORY_ADDR(addr) (((addr) >= U32_C(DDR_MEM_ADDR)) && ((addr) <= U32_C(DDR_MEM_ADDR) + U32_C(DDR_MEM_SIZE)))
/* thread safety */
VOID *LOS_DmaMemAlloc(DMA_ADDR_T *dmaAddr, size_t size, size_t align, enum DmaMemType type);
VOID LOS_DmaMemFree(VOID *vaddr);
DMA_ADDR_T LOS_DmaVaddrToPaddr(VOID *vaddr);
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */
#endif /* __LOS_VM_IOMAP_H__ */