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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 static __inline UWORD32 CLZ(UWORD32 u4_word)
     42 {
     43     if(u4_word)
     44         return(__builtin_clz(u4_word));
     45     else
     46         return 32;
     47 }
     48 
     49 static __inline UWORD32 CLZNZ(UWORD32 u4_word)
     50 {
     51     ASSERT(u4_word);
     52     return(__builtin_clz(u4_word));
     53 }
     54 
     55 static __inline UWORD32 CTZ(UWORD32 u4_word)
     56 {
     57     if(0 == u4_word)
     58         return 31;
     59     else
     60     {
     61         unsigned int index;
     62         index = __builtin_ctz(u4_word);
     63         return (UWORD32)index;
     64     }
     65 }
     66 
     67 #define CLIP_U8(x) CLIP3(0, 255, (x))
     68 #define CLIP_S8(x) CLIP3(-128, 127, (x))
     69 
     70 #define CLIP_U10(x) CLIP3(0, 1023, (x))
     71 #define CLIP_S10(x) CLIP3(-512, 511, (x))
     72 
     73 #define CLIP_U12(x) CLIP3(0, 4095, (x))
     74 #define CLIP_S12(x) CLIP3(-2048, 2047, (x))
     75 
     76 #define CLIP_U16(x) CLIP3(0, 65535, (x))
     77 #define CLIP_S16(x) CLIP3(-32768, 32767, (x))
     78 
     79 #define ITT_BIG_ENDIAN(x)   __builtin_bswap32(x);
     80 
     81 #define NOP(nop_cnt)    {UWORD32 nop_i; for (nop_i = 0; nop_i < nop_cnt; nop_i++) asm("nop");}
     82 #define PREFETCH(x) __builtin_prefetch(x);
     83 
     84 #define DATA_SYNC() __sync_synchronize()
     85 
     86 #define SHL(x,y) (((y) < 32) ? ((x) << (y)) : 0)
     87 #define SHR(x,y) (((y) < 32) ? ((x) >> (y)) : 0)
     88 
     89 #define SHR_NEG(val,shift)  (((shift) > 0) ? ( (val) >> (shift)) : ((val) << (-(shift))))
     90 #define SHL_NEG(val,shift)  (((shift) > 0) ? ( (val) >> (-(shift))) : ((val) << (shift)))
     91 
     92 #define INLINE inline
     93 
     94 #define MEM_ALIGN8 __attribute__ ((aligned (8)))
     95 #define MEM_ALIGN16 __attribute__ ((aligned (16)))
     96 #define MEM_ALIGN32 __attribute__ ((aligned (32)))
     97 
     98 
     99 #endif /* _ICV_PLATFORM_MACROS_H_ */
    100