From a3cd36acff47be80ba1cbf60f556df3f84cdf20c Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Sat, 20 Nov 2021 17:34:28 +0100
Subject: [PATCH] Add CMAKE support for cross-compiling to MIPS32

---
 cmake/arch.cmake         |  2 +-
 cmake/cc.cmake           |  5 +++++
 cmake/prebuild.cmake     | 30 +++++++++++++++++++++++++++++-
 cmake/system_check.cmake |  6 ++++++
 4 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/cmake/arch.cmake b/cmake/arch.cmake
index 57ee5a4fb..d468eb60b 100644
--- a/cmake/arch.cmake
+++ b/cmake/arch.cmake
@@ -109,7 +109,7 @@ if (${ARCH} STREQUAL "ia64")
   endif ()
 endif ()
 
-if (MIPS64)
+if (MIPS32 OR MIPS64)
   set(NO_BINARY_MODE 1)
 endif ()
 
diff --git a/cmake/cc.cmake b/cmake/cc.cmake
index 0ab1d4c1b..fdbb40ef6 100644
--- a/cmake/cc.cmake
+++ b/cmake/cc.cmake
@@ -15,6 +15,11 @@ if (${CMAKE_C_COMPILER_ID} STREQUAL "GNU" OR ${CMAKE_C_COMPILER_ID} STREQUAL "LS
 
   if (NO_BINARY_MODE)
 
+    if (MIPS32)
+        set(CCOMMON_OPT "${CCOMMON_OPT} -mabi=32")
+      set(BINARY_DEFINED 1)
+    endif ()
+
     if (MIPS64)
       if (BINARY64)
         set(CCOMMON_OPT "${CCOMMON_OPT} -mabi=64")
diff --git a/cmake/prebuild.cmake b/cmake/prebuild.cmake
index d86e10035..259d9c738 100644
--- a/cmake/prebuild.cmake
+++ b/cmake/prebuild.cmake
@@ -416,7 +416,7 @@ endif ()
     set(ZGEMM_UNROLL_M 4)
     set(ZGEMM_UNROLL_N 4)
     set(SYMV_P 16)
-elseif ("${TCORE}" STREQUAL "VORTEX")
+  elseif ("${TCORE}" STREQUAL "VORTEX")
     file(APPEND ${TARGET_CONF_TEMP}
       "#define ARMV8\n"
       "#define L1_CODE_SIZE\t32768\n"
@@ -439,6 +439,34 @@ elseif ("${TCORE}" STREQUAL "VORTEX")
     set(ZGEMM_UNROLL_M 4)
     set(ZGEMM_UNROLL_N 4)
     set(SYMV_P 16)
+  elseif ("${TCORE}" STREQUAL "P5600")
+    file(APPEND ${TARGET_CONF_TEMP}
+      "#define L2_SIZE 1048576\n"
+      "#define DTB_SIZE 4096\n"
+      "#define DTB_DEFAULT_ENTRIES 64\n")
+    set(SGEMM_UNROLL_M 2)
+    set(SGEMM_UNROLL_N 2)
+    set(DGEMM_UNROLL_M 2)
+    set(DGEMM_UNROLL_N 2)
+    set(CGEMM_UNROLL_M 2)
+    set(CGEMM_UNROLL_N 2)
+    set(ZGEMM_UNROLL_M 2)
+    set(ZGEMM_UNROLL_N 2)
+    set(SYMV_P 16)
+  elseif ("${TCORE}" MATCHES "MIPS")
+    file(APPEND ${TARGET_CONF_TEMP}
+      "#define L2_SIZE 262144\n"
+      "#define DTB_SIZE 4096\n"
+      "#define DTB_DEFAULT_ENTRIES 64\n")
+    set(SGEMM_UNROLL_M 2)
+    set(SGEMM_UNROLL_N 2)
+    set(DGEMM_UNROLL_M 2)
+    set(DGEMM_UNROLL_N 2)
+    set(CGEMM_UNROLL_M 2)
+    set(CGEMM_UNROLL_N 2)
+    set(ZGEMM_UNROLL_M 2)
+    set(ZGEMM_UNROLL_N 2)
+    set(SYMV_P 16)
   elseif ("${TCORE}" STREQUAL "POWER6")
     file(APPEND ${TARGET_CONF_TEMP}
       "#define L1_DATA_SIZE 32768\n"
diff --git a/cmake/system_check.cmake b/cmake/system_check.cmake
index 72c48db37..f71ec4555 100644
--- a/cmake/system_check.cmake
+++ b/cmake/system_check.cmake
@@ -73,6 +73,8 @@ elseif (${CMAKE_CROSSCOMPILING})
     else ()
        set(X86 1)
     endif()
+   elseif (${TARGET} STREQUAL "P5600" OR ${TARGET} MATCHES "MIPS.*")
+       set(MIPS32 1)
    elseif (${TARGET} STREQUAL "ARMV7")
        set(ARM 1)
    else()
@@ -88,6 +90,10 @@ elseif(X86)
   set(ARCH "x86")
 elseif(PPC)
   set(ARCH "power")
+elseif(MIPS32)
+  set(ARCH "mips")
+elseif(MIPS64)
+  set(ARCH "mips64")
 elseif(ARM)
   set(ARCH "arm")
 elseif(ARM64)