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RISC-V: updated intrin_rvv071.hpp to work with modern toolchain 2.8.0

Browse Source 
- intrinsics implementation (071) reworked to use modern RVV intrinsics syntax
- cmake toolchain file (071) now allows selecting from predefined configurations

Co-authored-by: Fang Sun <fangsun@linux.alibaba.com>
pull/24841/head
Maksim Shabunin 11 months ago
parent b647e65618
commit 224b9ee33f
3 changed files with 1033 additions and 618 deletions
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  1. 2
      modules/core/include/opencv2/core/cv_cpu_dispatch.h
  2. 1596
      modules/core/include/opencv2/core/hal/intrin_rvv071.hpp
  3. 53
      platforms/linux/riscv64-071-gcc.toolchain.cmake

2
modules/core/include/opencv2/core/cv_cpu_dispatch.h
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@ -147,7 +147,7 @@
#endif
#if defined(__riscv) && defined(__riscv_vector) && defined(__riscv_vector_071)
# include<riscv-vector.h>
# include<riscv_vector.h>
# define CV_RVV071 1
#endif

1596
modules/core/include/opencv2/core/hal/intrin_rvv071.hpp
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53
platforms/linux/riscv64-071-gcc.toolchain.cmake
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@ -4,5 +4,54 @@ set(CMAKE_SYSTEM_PROCESSOR riscv64)
set(CMAKE_CXX_COMPILER riscv64-unknown-linux-gnu-g++)
set(CMAKE_C_COMPILER riscv64-unknown-linux-gnu-gcc)
set(CMAKE_CXX_FLAGS_INIT "-march=rv64gcv -mabi=lp64d -D__riscv_vector_071")
set(CMAKE_C_FLAGS_INIT "-march=rv64gcv -mabi=lp64d -D__riscv_vector_071")
# MangoPi MQ Pro - C906FD, C906FDV
# Lichee Pi 4A - C910, C910V (?)
# CanMV K230 - C908, C908V
# See https://github.com/T-head-Semi/gcc/blob/xuantie-gcc-10.4.0/gcc/config/riscv/riscv-cores.def
set(_enable_vector OFF)
if(CORE STREQUAL "C906FD")
set(CMAKE_C_FLAGS_INIT "-mcpu=c906fd -mabi=lp64d -mtune=c906fd")
set(CMAKE_CXX_FLAGS_INIT "-mcpu=c906fd -mabi=lp64d -mtune=c906fd")
elseif(CORE STREQUAL "C906FDV")
set(CMAKE_C_FLAGS_INIT "-mcpu=c906fd -mabi=lp64d -mtune=c906fd")
set(CMAKE_CXX_FLAGS_INIT "-mcpu=c906fd -mabi=lp64d -mtune=c906fd")
# Disabled due to limited 64-bit SEW support
# set(_enable_vector ON)
elseif(CORE STREQUAL "C908")
set(CMAKE_C_FLAGS_INIT "-mcpu=c908 -mabi=lp64d -mtune=c908")
set(CMAKE_CXX_FLAGS_INIT "-mcpu=c908 -mabi=lp64d -mtune=c908")
elseif(CORE STREQUAL "C908V")
set(CMAKE_C_FLAGS_INIT "-mcpu=c908v -mabi=lp64d -mtune=c908")
set(CMAKE_CXX_FLAGS_INIT "-mcpu=c908v -mabi=lp64d -mtune=c908")
set(_enable_vector ON) # RVV 1.0
elseif(CORE STREQUAL "C910")
set(CMAKE_C_FLAGS_INIT "-mcpu=c910 -mabi=lp64d -mtune=c910")
set(CMAKE_CXX_FLAGS_INIT "-mcpu=c910 -mabi=lp64d -mtune=c910")
elseif(CORE STREQUAL "C910V")
set(CMAKE_C_FLAGS_INIT "-march=rv64imafdcv0p7xthead -mabi=lp64d")
set(CMAKE_CXX_FLAGS_INIT "-march=rv64imafdcv0p7xthead -mabi=lp64d")
set(_enable_vector ON) # RVV 0.7.1
elseif(CORE STREQUAL "C920")
set(CMAKE_C_FLAGS_INIT "-mcpu=c920 -mabi=lp64d -mtune=c920")
set(CMAKE_CXX_FLAGS_INIT "-mcpu=c920 -mabi=lp64d -mtune=c920")
set(_enable_vector ON) # RVV 0.7.1
elseif(CORE STREQUAL "C920V2")
set(CMAKE_C_FLAGS_INIT "-mcpu=c920v2 -mabi=lp64d -mtune=c920v2")
set(CMAKE_CXX_FLAGS_INIT "-mcpu=c920v2 -mabi=lp64d -mtune=c920v2")
set(_enable_vector ON) # RVV 1.0
else()
set(CMAKE_C_FLAGS_INIT "-march=rv64imafdc_zihintpause_zfh_zba_zbb_zbc_zbs_xtheadc -mabi=lp64d")
set(CMAKE_CXX_FLAGS_INIT "-march=rv64imafdc_zihintpause_zfh_zba_zbb_zbc_zbs_xtheadc -mabi=lp64d")
endif()
if(_enable_vector)
set(CMAKE_C_FLAGS_INIT "${CMAKE_C_FLAGS_INIT} -D__riscv_vector_071 -mrvv-vector-bits=128")
set(CMAKE_CXX_FLAGS_INIT "${CMAKE_CXX_FLAGS_INIT} -D__riscv_vector_071 -mrvv-vector-bits=128")
endif()
if(ENABLE_GCOV)
set(CMAKE_CXX_FLAGS_INIT "${CMAKE_CXX_FLAGS_INIT} -fprofile-arcs -ftest-coverage")
set(CMAKE_C_FLAGS_INIT "${CMAKE_C_FLAGS_INIT} -fprofile-arcs -ftest-coverage")
endif()

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