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  1. /*
  2.  * Copyright (c) 2008 Pavel Rimsky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup sparc64
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_sparc64_CPU_FAMILY_H_
  36. #define KERN_sparc64_CPU_FAMILY_H_
  37.  
  38. #include <arch.h>
  39. #include <cpu.h>
  40. #include <arch/register.h>
  41. #include <arch/asm.h>
  42.  
  43. /**
  44.  * Find the processor (sub)family.
  45.  *
  46.  * @return  true iff the CPU belongs to the US family
  47.  */
  48. static inline bool is_us(void)
  49. {
  50.     int impl = ((ver_reg_t) ver_read()).impl;
  51.     return (impl == IMPL_ULTRASPARCI) || (impl == IMPL_ULTRASPARCII) ||
  52.            (impl == IMPL_ULTRASPARCII_I) ||  (impl == IMPL_ULTRASPARCII_E);
  53. }
  54.  
  55. /**
  56.  * Find the processor (sub)family.
  57.  *
  58.  * @return  true iff the CPU belongs to the US-III subfamily
  59.  */
  60. static inline bool is_us_iii(void)
  61. {
  62.     int impl = ((ver_reg_t) ver_read()).impl;
  63.     return (impl == IMPL_ULTRASPARCIII) ||
  64.            (impl == IMPL_ULTRASPARCIII_PLUS) ||
  65.            (impl == IMPL_ULTRASPARCIII_I);
  66. }
  67.  
  68. /**
  69.  * Find the processor (sub)family.
  70.  *
  71.  * @return  true iff the CPU belongs to the US-IV subfamily
  72.  */
  73. static inline bool is_us_iv(void)
  74. {
  75.     int impl = ((ver_reg_t) ver_read()).impl;
  76.     return (impl == IMPL_ULTRASPARCIV) || (impl == IMPL_ULTRASPARCIV_PLUS);
  77. }
  78.    
  79. #endif
  80.  
  81. /** @}
  82.  */
  83.  
  84.