mips.h File Reference

Include dependency graph for mips.h:

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Macros
#define	AO_NO_DD_ORDERING
#define	AO_T_IS_INT
#define	AO_MIPS_SET_ISA   " .set mips2\n"
#define	AO_MIPS_LL_1(args)   " ll " args "\n"
#define	AO_MIPS_SC(args)   " sc " args "\n"
#define	AO_MIPS_LL(args)   AO_MIPS_LL_1(args)
#define	AO_HAVE_nop_full
#define	AO_HAVE_fetch_and_add
#define	AO_HAVE_test_and_set
#define	AO_HAVE_compare_and_swap
#define	AO_HAVE_fetch_compare_and_swap

Functions
AO_INLINE void	AO_nop_full (void)
AO_INLINE AO_t	AO_fetch_and_add (volatile AO_t *addr, AO_t incr)
AO_INLINE AO_TS_VAL_t	AO_test_and_set (volatile AO_TS_t *addr)
AO_INLINE int	AO_compare_and_swap (volatile AO_t *addr, AO_t old, AO_t new_val)
AO_INLINE AO_t	AO_fetch_compare_and_swap (volatile AO_t *addr, AO_t old, AO_t new_val)

Macro Definition Documentation

AO_HAVE_compare_and_swap

#define AO_HAVE_compare_and_swap

Definition at line 165 of file mips.h.

AO_HAVE_fetch_and_add

#define AO_HAVE_fetch_and_add

Definition at line 109 of file mips.h.

AO_HAVE_fetch_compare_and_swap

#define AO_HAVE_fetch_compare_and_swap

Definition at line 193 of file mips.h.

AO_HAVE_nop_full

#define AO_HAVE_nop_full

Definition at line 83 of file mips.h.

AO_HAVE_test_and_set

#define AO_HAVE_test_and_set

Definition at line 134 of file mips.h.

AO_MIPS_LL

#define AO_MIPS_LL

(

args

)

AO_MIPS_LL_1(args)

Definition at line 68 of file mips.h.

AO_MIPS_LL_1

#define AO_MIPS_LL_1

(

args

)

" ll " args "\n"

Definition at line 50 of file mips.h.

AO_MIPS_SC

#define AO_MIPS_SC

(

args

)

" sc " args "\n"

Definition at line 51 of file mips.h.

AO_MIPS_SET_ISA

#define AO_MIPS_SET_ISA   " .set mips2\n"

Definition at line 48 of file mips.h.

AO_NO_DD_ORDERING

#define AO_NO_DD_ORDERING

Definition at line 21 of file mips.h.

AO_T_IS_INT

#define AO_T_IS_INT

Definition at line 43 of file mips.h.

Function Documentation

AO_compare_and_swap()

AO_INLINE int AO_compare_and_swap	(	volatile AO_t *	addr,
		AO_t	old,
		AO_t	new_val
	)

Definition at line 141 of file mips.h.

  {
    register int was_equal = 0;
    register int temp;
 
    __asm__ __volatile__(
        "       .set push\n"
        AO_MIPS_SET_ISA
        "       .set noreorder\n"
        "       .set nomacro\n"
        "1: "
        AO_MIPS_LL("%0, %1")
        "       bne     %0, %4, 2f\n"
        "       move    %0, %3\n"
        AO_MIPS_SC("%0, %1")
        "       .set pop\n"
        "       beqz    %0, 1b\n"
        "       li      %2, 1\n"
        "2:"
        : "=&r" (temp), "+m" (*addr), "+r" (was_equal)
        : "r" (new_val), "r" (old)
        : "memory");
    return was_equal;
  }

AO_fetch_and_add()

AO_INLINE AO_t AO_fetch_and_add	(	volatile AO_t *	addr,
		AO_t	incr
	)

Definition at line 87 of file mips.h.

{
  register int result;
  register int temp;
 
  __asm__ __volatile__(
      "       .set push\n"
      AO_MIPS_SET_ISA
      "       .set noreorder\n"
      "       .set nomacro\n"
      "1: "
      AO_MIPS_LL("%0, %2")
      "       addu %1, %0, %3\n"
      AO_MIPS_SC("%1, %2")
      "       beqz %1, 1b\n"
      "       nop\n"
      "       .set pop"
      : "=&r" (result), "=&r" (temp), "+m" (*addr)
      : "Ir" (incr)
      : "memory");
  return (AO_t)result;
}

AO_fetch_compare_and_swap()

AO_INLINE AO_t AO_fetch_compare_and_swap	(	volatile AO_t *	addr,
		AO_t	old,
		AO_t	new_val
	)

Definition at line 169 of file mips.h.

{
  register int fetched_val;
  register int temp;
 
  __asm__ __volatile__(
      "       .set push\n"
      AO_MIPS_SET_ISA
      "       .set noreorder\n"
      "       .set nomacro\n"
      "1: "
      AO_MIPS_LL("%0, %2")
      "       bne  %0, %4, 2f\n"
      "       move %1, %3\n"
      AO_MIPS_SC("%1, %2")
      "       beqz %1, 1b\n"
      "       nop\n"
      "       .set pop\n"
      "2:"
      : "=&r" (fetched_val), "=&r" (temp), "+m" (*addr)
      : "r" (new_val), "Jr" (old)
      : "memory");
  return (AO_t)fetched_val;
}

AO_nop_full()

AO_INLINE void AO_nop_full

(

void

)

Definition at line 72 of file mips.h.

{
  __asm__ __volatile__(
      "       .set push\n"
      AO_MIPS_SET_ISA
      "       .set noreorder\n"
      "       .set nomacro\n"
      "       sync\n"
      "       .set pop"
      : : : "memory");
}

AO_test_and_set()

AO_INLINE AO_TS_VAL_t AO_test_and_set

(

volatile AO_TS_t *

addr

)

Definition at line 112 of file mips.h.

{
  register int oldval;
  register int temp;
 
  __asm__ __volatile__(
      "       .set push\n"
      AO_MIPS_SET_ISA
      "       .set noreorder\n"
      "       .set nomacro\n"
      "1: "
      AO_MIPS_LL("%0, %2")
      "       move %1, %3\n"
      AO_MIPS_SC("%1, %2")
      "       beqz %1, 1b\n"
      "       nop\n"
      "       .set pop"
      : "=&r" (oldval), "=&r" (temp), "+m" (*addr)
      : "r" (1)
      : "memory");
  return (AO_TS_VAL_t)oldval;
}