Merge pull request #4837 from martin-frbg/dyn_riscv_cmake

Add CMAKE support for RISCV64 DYNAMIC_ARCH

CMakeLists.txt

@@ -30,7 +30,7 @@ option(C_LAPACK "Build LAPACK from C sources instead of the original Fortran" OF
 
 option(BUILD_WITHOUT_CBLAS "Do not build the C interface (CBLAS) to the BLAS functions" OFF)
 
-option(DYNAMIC_ARCH "Include support for multiple CPU targets, with automatic selection at runtime (x86/x86_64, aarch64 or ppc only)" OFF)
+option(DYNAMIC_ARCH "Include support for multiple CPU targets, with automatic selection at runtime (x86/x86_64, aarch64, ppc or RISCV64-RVV1.0 only)" OFF)
 
 option(DYNAMIC_OLDER "Include specific support for older x86 cpu models (Penryn,Dunnington,Atom,Nano,Opteron) with DYNAMIC_ARCH" OFF)
 

cmake/arch.cmake

@@ -57,7 +57,11 @@ if (DYNAMIC_ARCH)
 	  set(DYNAMIC_CORE POWER6 POWER8 POWER9 POWER10)
 	  set(CCOMMON_OPT "${CCOMMON_OPT} -DHAVE_P10_SUPPORT")
   endif ()
-
+
+  if (RISCV64)
+	  set(DYNAMIC_CORE RISCV64_GENERIC RISCV64_ZVL128B RISCV64_ZVL256B) 
+  endif ()
+
   if (X86)
     set(DYNAMIC_CORE KATMAI COPPERMINE NORTHWOOD PRESCOTT BANIAS CORE2 PENRYN DUNNINGTON NEHALEM ATHLON OPTERON OPTERON_SSE3 BARCELONA BOBCAT ATOM NANO)
   endif ()

cmake/system.cmake

@@ -391,7 +391,7 @@ endif ()
 if (X86_64 OR ${CORE} STREQUAL POWER10)
   set(SMALL_MATRIX_OPT TRUE)
 endif ()
-if (ARM64 OR RISCV64 OR POWER)
+if (ARM64)
   set(GEMM_GEMV_FORWARD TRUE)
 endif ()
 
@@ -403,7 +403,7 @@ if (SMALL_MATRIX_OPT)
 endif ()
 
 if (DYNAMIC_ARCH)
-  if (X86 OR X86_64 OR ARM64 OR POWER)
+  if (X86 OR X86_64 OR ARM64 OR POWER OR RISCV64)
     set(CCOMMON_OPT "${CCOMMON_OPT} -DDYNAMIC_ARCH")
     if (DYNAMIC_OLDER)
       set(CCOMMON_OPT "${CCOMMON_OPT} -DDYNAMIC_OLDER")

driver/others/CMakeLists.txt

@@ -52,6 +52,8 @@ if (DYNAMIC_ARCH)
     list(APPEND COMMON_SOURCES dynamic_arm64.c)
   elseif (POWER)
     list(APPEND COMMON_SOURCES dynamic_power.c)
+  elseif (RISCV64)
+    list(APPEND COMMON_SOURCES dynamic_riscv64.c detect_riscv64.c)
   else ()  
     list(APPEND COMMON_SOURCES dynamic.c)
   endif ()