| /* |
| * Copyright (c) 2014 Advanced Micro Devices, Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| #pragma OPENCL EXTENSION cl_khr_subgroups : enable |
| |
| extern uint __hsail_get_lane_id(void); |
| extern uint __hsail_activelaneshuffle_wavewidth_b32(uint src, uint lid, uint ival, bool useival); |
| extern ulong __hsail_activelaneshuffle_wavewidth_b64(ulong src, uint lid, ulong ival, bool useival); |
| extern void __hsail_wavebarrier(); |
| |
| // Define exclusive in terms of inclusive |
| |
| #define EGEN(TY,OP,SZ,AO,AI,ID) \ |
| __attribute__((overloadable, always_inline)) TY \ |
| sub_group_scan_exclusive_##OP(TY a) \ |
| { \ |
| a = sub_group_scan_inclusive_##OP(a); \ |
| uint lid = __hsail_get_lane_id(); \ |
| a = AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-1)&0x3f, AI(ID), lid < 1)); \ |
| return a; \ |
| } |
| |
| EGEN(int,add,32,as_int,as_uint,0) |
| EGEN(int,min,32,as_int,as_uint,INT_MAX) |
| EGEN(int,max,32,as_int,as_uint,INT_MIN) |
| |
| EGEN(uint,add,32,,,0) |
| EGEN(uint,min,32,,,UINT_MAX) |
| EGEN(uint,max,32,,,0U) |
| |
| EGEN(long,add,64,as_long,as_ulong,0L) |
| EGEN(long,min,64,as_long,as_ulong,LONG_MAX) |
| EGEN(long,max,64,as_long,as_ulong,LONG_MIN) |
| |
| EGEN(ulong,add,64,,,0UL) |
| EGEN(ulong,min,64,,,ULONG_MAX) |
| EGEN(ulong,max,64,,,0UL) |
| |
| EGEN(float,add,32,as_float,as_uint,0.0f) |
| EGEN(float,min,32,as_float,as_uint,INFINITY) |
| EGEN(float,max,32,as_float,as_uint,-INFINITY) |
| |
| EGEN(double,add,64,as_double,as_ulong,0.0) |
| EGEN(double,min,64,as_double,as_ulong,(double)INFINITY) |
| EGEN(double,max,64,as_double,as_ulong,-(double)INFINITY) |
| |
| // Now inclusive scan |
| |
| #define IGENA(TY,SZ,AO,AI,ID) \ |
| __attribute__((overloadable, always_inline)) TY \ |
| sub_group_scan_inclusive_add(TY a) \ |
| { \ |
| uint lid = __hsail_get_lane_id(); \ |
| a += AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-1)&0x3f, AI(ID), lid < 1)); \ |
| __hsail_wavebarrier(); \ |
| a += AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-2)&0x3f, AI(ID), lid < 2)); \ |
| __hsail_wavebarrier(); \ |
| a += AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-4)&0x3f, AI(ID), lid < 4)); \ |
| __hsail_wavebarrier(); \ |
| a += AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-8)&0x3f, AI(ID), lid < 8)); \ |
| __hsail_wavebarrier(); \ |
| a += AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-16)&0x3f, AI(ID), lid < 16)); \ |
| __hsail_wavebarrier(); \ |
| a += AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-32)&0x3f, AI(ID), lid < 32)); \ |
| __hsail_wavebarrier(); \ |
| return a; \ |
| } |
| |
| #define IGENO(TY,SZ,OP,AO,AI,ID) \ |
| __attribute__((overloadable, always_inline)) TY \ |
| sub_group_scan_inclusive_##OP(TY a) \ |
| { \ |
| uint lid = __hsail_get_lane_id(); \ |
| a = OP(a, AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-1)&0x3f, AI(ID), lid < 1))); \ |
| __hsail_wavebarrier(); \ |
| a = OP(a, AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-2)&0x3f, AI(ID), lid < 2))); \ |
| __hsail_wavebarrier(); \ |
| a = OP(a, AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-4)&0x3f, AI(ID), lid < 4))); \ |
| __hsail_wavebarrier(); \ |
| a = OP(a, AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-8)&0x3f, AI(ID), lid < 8))); \ |
| __hsail_wavebarrier(); \ |
| a = OP(a, AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-16)&0x3f, AI(ID), lid < 16))); \ |
| __hsail_wavebarrier(); \ |
| a = OP(a, AO(__hsail_activelaneshuffle_wavewidth_b##SZ(AI(a), (lid-32)&0x3f, AI(ID), lid < 32))); \ |
| __hsail_wavebarrier(); \ |
| return a; \ |
| } |
| |
| IGENA(int,32,as_int,as_uint,0) |
| IGENO(int,32,min,as_int,as_uint,INT_MAX) |
| IGENO(int,32,max,as_int,as_uint,INT_MIN) |
| |
| IGENA(uint,32,,,0U) |
| IGENO(uint,32,min,,,UINT_MAX) |
| IGENO(uint,32,max,,,0U) |
| |
| IGENA(long,64,as_long,as_ulong,0L) |
| IGENO(long,64,min,as_long,as_ulong,LONG_MAX) |
| IGENO(long,64,max,as_long,as_ulong,LONG_MIN) |
| |
| IGENA(ulong,64,,,0UL) |
| IGENO(ulong,64,min,,,ULONG_MAX) |
| IGENO(ulong,64,max,,,0UL) |
| |
| IGENA(float,32,as_float,as_uint,0.0f) |
| IGENO(float,32,min,as_float,as_uint,INFINITY) |
| IGENO(float,32,max,as_float,as_uint,-INFINITY) |
| |
| IGENA(double,64,as_double,as_ulong,0.0) |
| IGENO(double,64,min,as_double,as_ulong,(double)INFINITY) |
| IGENO(double,64,max,as_double,as_ulong,-(double)INFINITY) |
| |