OpenBLAS/common_arm64.h

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#ifndef COMMON_ARM64
#define COMMON_ARM64

#define MB   __asm__ __volatile__ ("dmb  ish" : : : "memory")
#define WMB  __asm__ __volatile__ ("dmb  ishst" : : : "memory")


#define INLINE inline

#define RETURN_BY_COMPLEX

#ifndef ASSEMBLER

static void __inline blas_lock(volatile BLASULONG *address){

  int register ret;
  int register tmp;

  do {
    while (*address) {YIELDING;};

    __asm__ __volatile__(
                         "1:                                                            \n\t"
                         "ldaxr %2, [%1]                                                \n\t"
                         "mov   %2, #0                                                  \n\t"
                         "stlxr %w0, %2, [%1]                                            \n\t"
                         "cbnz  %w0, 1b                                                  \n\t"
			 "mov   %0 , #0                                                  \n\t"
                         : "=r"(ret), "=r"(address), "=r"(tmp)
                         : "1"(address)
                         : "memory", "%w0"
			   //, "%r2" , "%r3"


    );

  } while (ret);

}


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

#if defined(DOUBLE)
#define GET_IMAGE(res)  __asm__ __volatile__("str d1, %0" : "=m"(res) : : "memory")
#else
#define GET_IMAGE(res)  __asm__ __volatile__("str s1, %0" : "=m"(res) : : "memory")
#endif

#define GET_IMAGE_CANCEL

#endif


#ifndef F_INTERFACE
#define REALNAME ASMNAME
#else
#define REALNAME ASMFNAME
#endif

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

#define PROLOGUE \
	.global	REALNAME ;\
	.func	REALNAME  ;\
REALNAME:

#define EPILOGUE

#define PROFCODE

#endif


#define SEEK_ADDRESS

#ifndef PAGESIZE
#define PAGESIZE        ( 4 << 10)
#endif
#define HUGE_PAGESIZE   ( 4 << 20)

#define BUFFER_SIZE     (16 << 20)


#define BASE_ADDRESS (START_ADDRESS - BUFFER_SIZE * MAX_CPU_NUMBER)

#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif

#endif