cputlb.h

   1 /*
   2  *  Common CPU TLB handling
   3  *
   4  *  Copyright (c) 2003 Fabrice Bellard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #ifndef CPUTLB_H
  20 #define CPUTLB_H
  21
  22 #if !defined(CONFIG_USER_ONLY)
  23 /* cputlb.c */
  24 void tlb_protect_code(ram_addr_t ram_addr);
  25 void tlb_unprotect_code_phys(CPUArchState *env, ram_addr_t ram_addr,
  26                              target_ulong vaddr);
  27 void tlb_reset_dirty_range(CPUTLBEntry *tlb_entry, uintptr_t start,
  28                            uintptr_t length);
  29 MemoryRegionSection *phys_page_find(target_phys_addr_t index);
  30 void cpu_tlb_reset_dirty_all(ram_addr_t start1, ram_addr_t length);
  31 void tlb_set_dirty(CPUArchState *env, target_ulong vaddr);
  32 extern int tlb_flush_count;
  33
  34 /* exec.c */
  35 target_phys_addr_t section_addr(MemoryRegionSection *section,
  36                                 target_phys_addr_t addr);
  37 void tb_flush_jmp_cache(CPUArchState *env, target_ulong addr);
  38 target_phys_addr_t memory_region_section_get_iotlb(CPUArchState *env,
  39                                                    MemoryRegionSection *section,
  40                                                    target_ulong vaddr,
  41                                                    target_phys_addr_t paddr,
  42                                                    int prot,
  43                                                    target_ulong *address);
  44 bool memory_region_is_unassigned(MemoryRegion *mr);
  45
  46 static inline bool is_ram_rom(MemoryRegionSection *s)
  47 {
  48     return memory_region_is_ram(s->mr);
  49 }
  50
  51 static inline bool is_romd(MemoryRegionSection *s)
  52 {
  53     MemoryRegion *mr = s->mr;
  54
  55     return mr->rom_device && mr->readable;
  56 }
  57 static inline bool is_ram_rom_romd(MemoryRegionSection *s)
  58 {
  59     return is_ram_rom(s) || is_romd(s);
  60 }
  61
  62 #endif
  63 #endif