OpenBLAS/common_loongarch64.h

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/* Copyright 2009, 2010 The University of Texas at Austin.           */
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/* Redistribution and use in source and binary forms, with or        */
/* without modification, are permitted provided that the following   */
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#ifndef COMMON_LOONGARCH64
#define COMMON_LOONGARCH64

#define MB  __sync_synchronize()
#define WMB __sync_synchronize()
#define RMB __sync_synchronize()

#define INLINE inline

#ifndef ASSEMBLER

static inline int blas_quickdivide(blasint x, blasint y){
  return x / y;
}

#ifndef NO_AFFINITY
static inline int WhereAmI(void){
  int ret = 0, counter = 0;
  __asm__ volatile (
    "rdtimel.w  %[counter],   %[id]"
    : [id]"=r"(ret), [counter]"=r"(counter)
    :
    : "memory"
  );
  return ret;
}
#endif

static inline int get_cpu_model(char *model_name) {
  FILE *cpuinfo_file = fopen("/proc/cpuinfo", "r");
  if (!cpuinfo_file) {
    return 0;
  }
  char line[1024];
  while (fgets(line, sizeof(line), cpuinfo_file)) {
    if (strstr(line, "model name")) {
      char *token = strtok(line, ":");
      token = strtok(NULL, ":");
      while (*token == ' ')
        token++;
      char *end = token + strlen(token) - 1;
      while (end > token && (*end == '\n' || *end == '\r')) {
        *end = '\0';
        end--;
      }
      strcpy(model_name, token);
      fclose(cpuinfo_file);
      return 1;
    }
  }
  fclose(cpuinfo_file);
  return 0;
}

#ifdef DOUBLE
#define GET_IMAGE(res)  __asm__ __volatile__("fmov.d %0, $f2" : "=f"(res)  : : "memory")
#else
#define GET_IMAGE(res)  __asm__ __volatile__("fmov.s %0, $f2" : "=f"(res)  : : "memory")
#endif

#define GET_IMAGE_CANCEL

#else

#ifdef DOUBLE
#define LD      fld.d
#define ST      fst.d
#define MADD    fmadd.d
#define NMADD   fnmadd.d
#define MSUB    fmsub.d
#define NMSUB   fnmsub.d
#define ADD     fadd.d
#define SUB     fsub.d
#define MUL     fmul.d
#define MOV     fmov.d
#define CMOVT   fsel
#define MTC     movgr2fr.d
#define MTG     movfr2gr.d
#define FABS    fabs.d
#define FMIN    fmin.d
#define FMINA   fmina.d
#define FMAX    fmax.d
#define FMAXA   fmaxa.d
#define CMPEQ   fcmp.ceq.d
#define CMPLE   fcmp.cle.d
#define CMPLT   fcmp.clt.d
#define NEG     fneg.d
#define FFINT   ffint.d.l

#define XVFSUB  xvfsub.d
#define XVFADD  xvfadd.d
#define XVFMUL  xvfmul.d
#define XVFMADD xvfmadd.d
#define XVFMIN  xvfmin.d
#define XVFMINA xvfmina.d
#define XVFMAX  xvfmax.d
#define XVFMAXA xvfmaxa.d
#define XVCMPEQ xvfcmp.ceq.d
#define XVCMPLE xvfcmp.cle.d
#define XVCMPLT xvfcmp.clt.d
#define XVMUL   xvfmul.d
#define XVMSUB  xvfmsub.d
#define XVNMSUB xvfnmsub.d

#define VFSUB  vfsub.d
#define VFADD  vfadd.d
#define VFMUL  vfmul.d
#define VFMADD vfmadd.d
#define VFMIN  vfmin.d
#define VFMINA vfmina.d
#define VFMAX  vfmax.d
#define VFMAXA vfmaxa.d
#define VCMPEQ vfcmp.ceq.d
#define VCMPLE vfcmp.cle.d
#define VCMPLT vfcmp.clt.d
#define VMUL   vfmul.d
#define VMSUB  vfmsub.d
#define VNMSUB vfnmsub.d

#else

#define LD      fld.s
#define ST      fst.s
#define MADD    fmadd.s
#define NMADD   fnmadd.s
#define MSUB    fmsub.s
#define NMSUB   fnmsub.s
#define ADD     fadd.s
#define SUB     fsub.s
#define MUL     fmul.s
#define MOV     fmov.s
#define CMOVT   fsel
#define MTC     movgr2fr.w
#define MTG     movfr2gr.s
#define FABS    fabs.s
#define FMIN    fmin.s
#define FMINA   fmina.s
#define FMAX    fmax.s
#define FMAXA   fmaxa.s
#define CMPEQ   fcmp.ceq.s
#define CMPLE   fcmp.cle.s
#define CMPLT   fcmp.clt.s
#define NEG     fneg.s
#define FFINT   ffint.s.l

#define XVFSUB  xvfsub.s
#define XVFADD  xvfadd.s
#define XVFMUL  xvfmul.s
#define XVFMADD xvfmadd.s
#define XVFMIN  xvfmin.s
#define XVFMINA xvfmina.s
#define XVFMAX  xvfmax.s
#define XVFMAXA xvfmaxa.s
#define XVCMPEQ xvfcmp.ceq.s
#define XVCMPLE xvfcmp.cle.s
#define XVCMPLT xvfcmp.clt.s
#define XVMUL   xvfmul.s
#define XVMSUB  xvfmsub.s
#define XVNMSUB xvfnmsub.s

#define VFSUB  vfsub.s
#define VFADD  vfadd.s
#define VFMUL  vfmul.s
#define VFMADD vfmadd.s
#define VFMIN  vfmin.s
#define VFMINA vfmina.s
#define VFMAX  vfmax.s
#define VFMAXA vfmaxa.s
#define VCMPEQ vfcmp.ceq.s
#define VCMPLE vfcmp.cle.s
#define VCMPLT vfcmp.clt.s
#define VMUL   vfmul.s
#define VMSUB  vfmsub.s
#define VNMSUB vfnmsub.s

#endif /* defined(DOUBLE) */

#if defined(__64BIT__) && defined(USE64BITINT)
#define LDINT   ld.d
#define LDARG   ld.d
#define SDARG   st.d
#elif defined(__64BIT__) && !defined(USE64BITINT)
#define LDINT   ld.w
#define LDARG   ld.d
#define SDARG   st.d
#else
#define LDINT   ld.w
#define LDARG   ld.w
#define SDARG   st.w
#endif


#ifndef F_INTERFACE
#define REALNAME ASMNAME
#else
#define REALNAME ASMFNAME
#endif /* defined(F_INTERFACE) */

#if defined(ASSEMBLER) && !defined(NEEDPARAM)

#define PROLOGUE \
    .text ;\
    .align 5 ;\
    .globl  REALNAME ;\
    .type   REALNAME, @function ;\
REALNAME: ;\

#if defined(__linux__) && defined(__ELF__)
#define GNUSTACK .section .note.GNU-stack,"",@progbits
#else
#define GNUSTACK
#endif /* defined(__linux__) && defined(__ELF__) */

#define EPILOGUE      \
    .end    REALNAME ;\
    GNUSTACK

#define PROFCODE

#define MOVT(dst, src, cc)  \
    bceqz  cc,   1f;        \
    add.d dst,  src,  $r0;  \
    1:

#endif /* defined(ASSEMBLER) && !defined(NEEDPARAM) */

#endif /* defined(ASSEMBLER) */

#define SEEK_ADDRESS

#define BUFFER_SIZE     ( 32 << 20)

#define PAGESIZE        (16UL << 10)
#define FIXED_PAGESIZE  (16UL << 10)
#define HUGE_PAGESIZE   ( 2 << 20)

#define BASE_ADDRESS (START_ADDRESS - BUFFER_SIZE * MAX_CPU_NUMBER)

#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif

#endif