62 lines
2.4 KiB
C
62 lines
2.4 KiB
C
/*
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* Copyright (c) 2008 Travis Geiselbrecht
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*
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* Copyright (c) 2013, The Linux Foundation. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __STDLIB_H
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#define __STDLIB_H
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#include <sys/types.h>
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#include <stddef.h>
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#include <malloc.h>
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#include <printf.h>
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#include <endian.h>
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#include <arch/defines.h>
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unsigned gcd(unsigned m, unsigned n);
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unsigned lcm(unsigned m, unsigned n);
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int atoi(const char *num);
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unsigned int atoui(const char *num);
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long atol(const char *num);
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unsigned long atoul(const char *num);
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int itoa(int num, unsigned char* str, int len, int base);
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#define MIN(a, b) (((a) < (b)) ? (a) : (b))
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#define MAX(a, b) (((a) > (b)) ? (a) : (b))
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#define ROUNDUP(a, b) (((a) + ((b)-1)) & ~((b)-1))
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#define ROUNDDOWN(a, b) ((a) & ~((b)-1))
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/* allocate a buffer on the stack aligned and padded to the cpu's cache line size */
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#define STACKBUF_DMA_ALIGN(var, size) \
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uint8_t __##var[(size) + CACHE_LINE]; uint8_t *var = (uint8_t *)(ROUNDUP((addr_t)__##var, CACHE_LINE))
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/* Macro to allocate buffer in both local & global space, the STACKBUF_DMA_ALIGN cannot
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* be used for global space.
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* If we use STACKBUF_DMA_ALIGN 'C' compiler throws the error "Initializer element
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* is not constant", since global variable need to be initialized with a constant value.
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*/
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#define BUF_DMA_ALIGN(var, size) \
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static uint8_t var[ROUNDUP(size, CACHE_LINE)] __attribute__((aligned(CACHE_LINE)));
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#endif
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