arch/nios2/include/asm/cpuinfo.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
   4  */
   5
   6 #ifndef _ASM_NIOS2_CPUINFO_H
   7 #define _ASM_NIOS2_CPUINFO_H
   8
   9 #include <linux/types.h>
  10
  11 struct cpuinfo {
  12         /* Core CPU configuration */
  13         char cpu_impl[12];
  14         u32 cpu_clock_freq;
  15         bool mmu;
  16         bool has_div;
  17         bool has_mul;
  18         bool has_mulx;
  19         bool has_bmx;
  20         bool has_cdx;
  21
  22         /* CPU caches */
  23         u32 icache_line_size;
  24         u32 icache_size;
  25         u32 dcache_line_size;
  26         u32 dcache_size;
  27
  28         /* TLB */
  29         u32 tlb_pid_num_bits;   /* number of bits used for the PID in TLBMISC */
  30         u32 tlb_num_ways;
  31         u32 tlb_num_ways_log2;
  32         u32 tlb_num_entries;
  33         u32 tlb_num_lines;
  34         u32 tlb_ptr_sz;
  35
  36         /* Addresses */
  37         u32 reset_addr;
  38         u32 exception_addr;
  39         u32 fast_tlb_miss_exc_addr;
  40 };
  41
  42 extern struct cpuinfo cpuinfo;
  43
  44 extern void setup_cpuinfo(void);
  45
  46 #endif /* _ASM_NIOS2_CPUINFO_H */