root/arch/unicore32/include/asm/cputype.h

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INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * linux/arch/unicore32/include/asm/cputype.h
   4  *
   5  * Code specific to PKUnity SoC and UniCore ISA
   6  *
   7  * Copyright (C) 2001-2010 GUAN Xue-tao
   8  */
   9 #ifndef __UNICORE_CPUTYPE_H__
  10 #define __UNICORE_CPUTYPE_H__
  11 
  12 #include <linux/stringify.h>
  13 
  14 #define CPUID_CPUID     0
  15 #define CPUID_CACHETYPE 1
  16 
  17 #define read_cpuid(reg)                                                 \
  18         ({                                                              \
  19                 unsigned int __val;                                     \
  20                 asm("movc       %0, p0.c0, #" __stringify(reg)          \
  21                     : "=r" (__val)                                      \
  22                     :                                                   \
  23                     : "cc");                                            \
  24                 __val;                                                  \
  25         })
  26 
  27 #define uc32_cpuid              read_cpuid(CPUID_CPUID)
  28 #define uc32_cachetype          read_cpuid(CPUID_CACHETYPE)
  29 
  30 #endif
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