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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI__ALPHA_COMPILER_H
#define _UAPI__ALPHA_COMPILER_H

/* 
 * Herein are macros we use when describing various patterns we want to GCC.
 * In all cases we can get better schedules out of the compiler if we hide
 * as little as possible inside inline assembly.  However, we want to be
 * able to know what we'll get out before giving up inline assembly.  Thus
 * these tests and macros.
 */

#if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3
# define __kernel_insbl(val, shift)	__builtin_alpha_insbl(val, shift)
# define __kernel_inswl(val, shift)	__builtin_alpha_inswl(val, shift)
# define __kernel_insql(val, shift)	__builtin_alpha_insql(val, shift)
# define __kernel_inslh(val, shift)	__builtin_alpha_inslh(val, shift)
# define __kernel_extbl(val, shift)	__builtin_alpha_extbl(val, shift)
# define __kernel_extwl(val, shift)	__builtin_alpha_extwl(val, shift)
# define __kernel_cmpbge(a, b)		__builtin_alpha_cmpbge(a, b)
#else
# define __kernel_insbl(val, shift)					\
  ({ unsigned long __kir;						\
     __asm__("insbl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
     __kir; })
# define __kernel_inswl(val, shift)					\
  ({ unsigned long __kir;						\
     __asm__("inswl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
     __kir; })
# define __kernel_insql(val, shift)					\
  ({ unsigned long __kir;						\
     __asm__("insql %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
     __kir; })
# define __kernel_inslh(val, shift)					\
  ({ unsigned long __kir;						\
     __asm__("inslh %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
     __kir; })
# define __kernel_extbl(val, shift)					\
  ({ unsigned long __kir;						\
     __asm__("extbl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
     __kir; })
# define __kernel_extwl(val, shift)					\
  ({ unsigned long __kir;						\
     __asm__("extwl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
     __kir; })
# define __kernel_cmpbge(a, b)						\
  ({ unsigned long __kir;						\
     __asm__("cmpbge %r2,%1,%0" : "=r"(__kir) : "rI"(b), "rJ"(a));	\
     __kir; })
#endif

#ifdef __alpha_cix__
# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3
#  define __kernel_cttz(x)		__builtin_ctzl(x)
#  define __kernel_ctlz(x)		__builtin_clzl(x)
#  define __kernel_ctpop(x)		__builtin_popcountl(x)
# else
#  define __kernel_cttz(x)						\
   ({ unsigned long __kir;						\
      __asm__("cttz %1,%0" : "=r"(__kir) : "r"(x));			\
      __kir; })
#  define __kernel_ctlz(x)						\
   ({ unsigned long __kir;						\
      __asm__("ctlz %1,%0" : "=r"(__kir) : "r"(x));			\
      __kir; })
#  define __kernel_ctpop(x)						\
   ({ unsigned long __kir;						\
      __asm__("ctpop %1,%0" : "=r"(__kir) : "r"(x));			\
      __kir; })
# endif
#else
# define __kernel_cttz(x)						\
  ({ unsigned long __kir;						\
     __asm__(".arch ev67; cttz %1,%0" : "=r"(__kir) : "r"(x));		\
     __kir; })
# define __kernel_ctlz(x)						\
  ({ unsigned long __kir;						\
     __asm__(".arch ev67; ctlz %1,%0" : "=r"(__kir) : "r"(x));		\
     __kir; })
# define __kernel_ctpop(x)						\
  ({ unsigned long __kir;						\
     __asm__(".arch ev67; ctpop %1,%0" : "=r"(__kir) : "r"(x));		\
     __kir; })
#endif


/* 
 * Beginning with EGCS 1.1, GCC defines __alpha_bwx__ when the BWX 
 * extension is enabled.  Previous versions did not define anything
 * we could test during compilation -- too bad, so sad.
 */

#if defined(__alpha_bwx__)
#define __kernel_ldbu(mem)	(mem)
#define __kernel_ldwu(mem)	(mem)
#define __kernel_stb(val,mem)	((mem) = (val))
#define __kernel_stw(val,mem)	((mem) = (val))
#else
#define __kernel_ldbu(mem)				\
  ({ unsigned char __kir;				\
     __asm__(".arch ev56;				\
	      ldbu %0,%1" : "=r"(__kir) : "m"(mem));	\
     __kir; })
#define __kernel_ldwu(mem)				\
  ({ unsigned short __kir;				\
     __asm__(".arch ev56;				\
	      ldwu %0,%1" : "=r"(__kir) : "m"(mem));	\
     __kir; })
#define __kernel_stb(val,mem)				\
  __asm__(".arch ev56;					\
	   stb %1,%0" : "=m"(mem) : "r"(val))
#define __kernel_stw(val,mem)				\
  __asm__(".arch ev56;					\
	   stw %1,%0" : "=m"(mem) : "r"(val))
#endif


#endif /* _UAPI__ALPHA_COMPILER_H */

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Name Type Size Permission Actions
Kbuild File 101 B 0644
a.out.h File 2 KB 0644
auxvec.h File 774 B 0644
bitsperlong.h File 237 B 0644
byteorder.h File 194 B 0644
compiler.h File 4.12 KB 0644
console.h File 1.15 KB 0644
errno.h File 5.31 KB 0644
fcntl.h File 1.86 KB 0644
fpu.h File 4.52 KB 0644
gentrap.h File 1.43 KB 0644
ioctl.h File 2.3 KB 0644
ioctls.h File 4.32 KB 0644
ipcbuf.h File 95 B 0644
kvm_para.h File 97 B 0644
mman.h File 3.45 KB 0644
msgbuf.h File 922 B 0644
pal.h File 1.01 KB 0644
param.h File 313 B 0644
poll.h File 93 B 0644
posix_types.h File 513 B 0644
ptrace.h File 1.66 KB 0644
reg.h File 1005 B 0644
regdef.h File 1.04 KB 0644
resource.h File 761 B 0644
sembuf.h File 670 B 0644
setup.h File 1.43 KB 0644
shmbuf.h File 1.08 KB 0644
sigcontext.h File 891 B 0644
siginfo.h File 468 B 0644
signal.h File 3.08 KB 0644
socket.h File 2.54 KB 0644
sockios.h File 497 B 0644
stat.h File 1.05 KB 0644
statfs.h File 314 B 0644
swab.h File 1.25 KB 0644
sysinfo.h File 775 B 0644
termbits.h File 5.14 KB 0644
termios.h File 1.49 KB 0644
types.h File 884 B 0644
unistd.h File 14.99 KB 0644