LXR linux/arch/nios2/include/asm/cpuinfo.h

   1/*
   2 * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License as published by
   6 * the Free Software Foundation; either version 2 of the License, or
   7 * (at your option) any later version.
   8 *
   9 * This program is distributed in the hope that it will be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU General Public License for more details.
  13 *
  14 * You should have received a copy of the GNU General Public License
  15 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 *
  17 */
  18
  19#ifndef _ASM_NIOS2_CPUINFO_H
  20#define _ASM_NIOS2_CPUINFO_H
  21
  22#include <linux/types.h>
  23
  24struct cpuinfo {
  25        /* Core CPU configuration */
  26        char cpu_impl[12];
  27        u32 cpu_clock_freq;
  28        bool mmu;
  29        bool has_div;
  30        bool has_mul;
  31        bool has_mulx;
  32        bool has_bmx;
  33        bool has_cdx;
  34
  35        /* CPU caches */
  36        u32 icache_line_size;
  37        u32 icache_size;
  38        u32 dcache_line_size;
  39        u32 dcache_size;
  40
  41        /* TLB */
  42        u32 tlb_pid_num_bits;   /* number of bits used for the PID in TLBMISC */
  43        u32 tlb_num_ways;
  44        u32 tlb_num_ways_log2;
  45        u32 tlb_num_entries;
  46        u32 tlb_num_lines;
  47        u32 tlb_ptr_sz;
  48
  49        /* Addresses */
  50        u32 reset_addr;
  51        u32 exception_addr;
  52        u32 fast_tlb_miss_exc_addr;
  53};
  54
  55extern struct cpuinfo cpuinfo;
  56
  57extern void setup_cpuinfo(void);
  58
  59#endif /* _ASM_NIOS2_CPUINFO_H */
  60