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      1 /******************************************************************************
      2  *
      3  * Copyright (C) 2015 The Android Open Source Project
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at:
      8  *
      9  * http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  *
     17  *****************************************************************************
     18  * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
     19 */
     20 /**
     21 *******************************************************************************
     22 * @file
     23 *  icv_platform_macros.h
     24 *
     25 * @brief
     26 *  This header files contains all the platform/toolchain specific macros
     27 *
     28 * @author
     29 *  Ittiam
     30 *
     31 * @par List of Functions:
     32 *
     33 * @remarks
     34 *  None
     35 *
     36 *******************************************************************************
     37 */
     38 #ifndef __ICV_PLATFORM_MACROS_H__
     39 #define __ICV_PLATFORM_MACROS_H__
     40 
     41 #define INLINE inline
     42 
     43 static INLINE UWORD32 CLZ(UWORD32 u4_word)
     44 {
     45     if(u4_word)
     46         return (__builtin_clz(u4_word));
     47     else
     48         return 32;
     49 }
     50 
     51 static __inline  UWORD32 CLZNZ(UWORD32 u4_word)
     52 {
     53     ASSERT(u4_word);
     54     return (__builtin_clz(u4_word));
     55 }
     56 
     57 #define CLIP_U8(x) ((x) > 255) ? (255) : (((x) < 0) ? (0) : (x))
     58 #define CLIP_S8(x) ((x) > 127) ? (127) : (((x) < -128) ? (-128) : (x))
     59 
     60 #define CLIP_U12(x) ((x) > 4095) ? (4095) : (((x) < 0) ? (0) : (x))
     61 #define CLIP_S12(x) ((x) > 2047) ? (2047) : (((x) < -2048) ? (-2048) : (x))
     62 
     63 #define CLIP_U16(x) ((x) > 65535) ? (65535) : (((x) < 0) ? (0) : (x))
     64 #define CLIP_S16(x) ((x) > 32767) ? (32767) : (((x) < -32768) ? (-32768) : (x))
     65 
     66 #define ITT_BIG_ENDIAN(x) __asm__("rev %0, %1" : "=r"(x) : "r"(x));
     67 
     68 #define NOP(nop_cnt)                                \
     69 {                                                   \
     70     UWORD32 nop_i;                                  \
     71     for (nop_i = 0; nop_i < nop_cnt; nop_i++)       \
     72         __asm__ __volatile__("mov x0, x0");         \
     73 }
     74 
     75 
     76 #define PREFETCH(x) __builtin_prefetch(x);
     77 
     78 #define DATA_SYNC() __sync_synchronize()
     79 
     80 #define SHL(x,y) (((y) < 32) ? ((x) << (y)) : 0)
     81 #define SHR(x,y) (((y) < 32) ? ((x) >> (y)) : 0)
     82 
     83 #define SHR_NEG(val,shift)  (((shift) > 0) ? ( (val) >> (shift)) : ((val) << (-(shift))))
     84 #define SHL_NEG(val,shift)  (((shift) > 0) ? ( (val) >> (-(shift))) : ((val) << (shift)))
     85 
     86 #define INLINE inline
     87 
     88 #define MEM_ALIGN8 __attribute__ ((aligned (8)))
     89 #define MEM_ALIGN16 __attribute__ ((aligned (16)))
     90 #define MEM_ALIGN32 __attribute__ ((aligned (32)))
     91 
     92 
     93 #endif /* __ICV_PLATFORM_MACROS_H__ */
     94