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

#ifdef F_INTERFACE_FLANG
#define RETURN_BY_STACK
#else
#define RETURN_BY_COMPLEX
#endif

#ifndef ASSEMBLER


static void __inline blas_lock(volatile BLASULONG *address){

  BLASULONG ret;

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

    __asm__ __volatile__(
			 "mov	x4, #1							\n\t"
                         "1:                                                            \n\t"
                         "ldaxr x2, [%1]                                                \n\t"
                         "cbnz  x2, 1b                                                  \n\t"
			 "2:								\n\t"
                         "stxr  w3, x4, [%1]                                            \n\t"
                         "cbnz  w3, 1b                                                  \n\t"
                         "mov   %0, #0                                                  \n\t"
                         : "=r"(ret), "=r"(address)
                         : "1"(address)
                         : "memory", "x2" , "x3", "x4"


    );


  } while (ret);

}

#define BLAS_LOCK_DEFINED



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 \
	.text ;\
	.align	4 ;\
	.global	REALNAME ;\
	.type	REALNAME, %function ;\
REALNAME:

#define EPILOGUE

#define PROFCODE

#endif


#define SEEK_ADDRESS

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

#if defined(CORTEXA57)
#define BUFFER_SIZE     (20 << 20)
#else
#define BUFFER_SIZE     (16 << 20)
#endif


#define BASE_ADDRESS (START_ADDRESS - BUFFER_SIZE * MAX_CPU_NUMBER)

#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif

#endif