1  /* Copyright (C) 2018-2023 Free Software Foundation, Inc.
       2  
       3     This file is part of GCC.
       4  
       5     GCC is free software; you can redistribute it and/or modify
       6     it under the terms of the GNU General Public License as published by
       7     the Free Software Foundation; either version 3, or (at your option)
       8     any later version.
       9  
      10     GCC is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13     GNU General Public License for more details.
      14  
      15     Under Section 7 of GPL version 3, you are granted additional
      16     permissions described in the GCC Runtime Library Exception, version
      17     3.1, as published by the Free Software Foundation.
      18  
      19     You should have received a copy of the GNU General Public License and
      20     a copy of the GCC Runtime Library Exception along with this program;
      21     see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      22     <http://www.gnu.org/licenses/>.  */
      23  
      24  #ifndef _X86GPRINTRIN_H_INCLUDED
      25  # error "Never use <pconfigintrin.h> directly; include <x86gprintrin.h> instead."
      26  #endif
      27  
      28  #ifndef _PCONFIGINTRIN_H_INCLUDED
      29  #define _PCONFIGINTRIN_H_INCLUDED
      30  
      31  #ifndef __PCONFIG__
      32  #pragma GCC push_options
      33  #pragma GCC target("pconfig")
      34  #define __DISABLE_PCONFIG__
      35  #endif /* __PCONFIG__ */
      36  
      37  #define __pconfig_b(leaf, b, retval)			\
      38    __asm__ __volatile__ ("pconfig\n\t"			\
      39  	: "=a" (retval)					\
      40  	: "a" (leaf), "b" (b)				\
      41  	: "cc")
      42  
      43  #define __pconfig_generic(leaf, b, c, d, retval)	\
      44    __asm__ __volatile__ ("pconfig\n\t"			\
      45  	: "=a" (retval), "=b" (b), "=c" (c), "=d" (d)	\
      46  	: "a" (leaf), "b" (b), "c" (c), "d" (d)		\
      47  	: "cc")
      48  
      49  extern __inline unsigned int
      50  __attribute__((__gnu_inline__, __always_inline__, __artificial__))
      51  _pconfig_u32 (const unsigned int __L, size_t __D[])
      52  {
      53    enum __pconfig_type
      54    {
      55      __PCONFIG_KEY_PROGRAM = 0x01,
      56    };
      57  
      58    unsigned int __R = 0;
      59  
      60    if (!__builtin_constant_p (__L))
      61      __pconfig_generic (__L, __D[0], __D[1], __D[2], __R);
      62    else switch (__L)
      63      {
      64      case __PCONFIG_KEY_PROGRAM:
      65        __pconfig_b (__L, __D[0], __R);
      66        break;
      67      default:
      68        __pconfig_generic (__L, __D[0], __D[1], __D[2], __R);
      69      }
      70    return __R;
      71  }
      72  
      73  #ifdef __DISABLE_PCONFIG__
      74  #undef __DISABLE_PCONFIG__
      75  #pragma GCC pop_options
      76  #endif /* __DISABLE_PCONFIG__ */
      77  
      78  #endif /* _PCONFIGINTRIN_H_INCLUDED */