LXR qemu/cpu-common.h

   1#ifndef CPU_COMMON_H
   2#define CPU_COMMON_H 1
   3
   4/* CPU interfaces that are target indpendent.  */
   5
   6#if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__)
   7#define WORDS_ALIGNED
   8#endif
   9
  10#include "bswap.h"
  11
  12/* address in the RAM (different from a physical address) */
  13typedef unsigned long ram_addr_t;
  14
  15/* memory API */
  16
  17typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
  18typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
  19
  20void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
  21                                         ram_addr_t size,
  22                                         ram_addr_t phys_offset,
  23                                         ram_addr_t region_offset);
  24static inline void cpu_register_physical_memory(target_phys_addr_t start_addr,
  25                                                ram_addr_t size,
  26                                                ram_addr_t phys_offset)
  27{
  28    cpu_register_physical_memory_offset(start_addr, size, phys_offset, 0);
  29}
  30
  31ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr);
  32ram_addr_t qemu_ram_alloc(ram_addr_t);
  33void qemu_ram_free(ram_addr_t addr);
  34/* This should only be used for ram local to a device.  */
  35void *qemu_get_ram_ptr(ram_addr_t addr);
  36/* This should not be used by devices.  */
  37ram_addr_t qemu_ram_addr_from_host(void *ptr);
  38
  39int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read,
  40                           CPUWriteMemoryFunc * const *mem_write,
  41                           void *opaque);
  42void cpu_unregister_io_memory(int table_address);
  43
  44void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
  45                            int len, int is_write);
  46static inline void cpu_physical_memory_read(target_phys_addr_t addr,
  47                                            uint8_t *buf, int len)
  48{
  49    cpu_physical_memory_rw(addr, buf, len, 0);
  50}
  51static inline void cpu_physical_memory_write(target_phys_addr_t addr,
  52                                             const uint8_t *buf, int len)
  53{
  54    cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
  55}
  56void *cpu_physical_memory_map(target_phys_addr_t addr,
  57                              target_phys_addr_t *plen,
  58                              int is_write);
  59void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len,
  60                               int is_write, target_phys_addr_t access_len);
  61void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque));
  62void cpu_unregister_map_client(void *cookie);
  63
  64uint32_t ldub_phys(target_phys_addr_t addr);
  65uint32_t lduw_phys(target_phys_addr_t addr);
  66uint32_t ldl_phys(target_phys_addr_t addr);
  67uint64_t ldq_phys(target_phys_addr_t addr);
  68void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
  69void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val);
  70void stb_phys(target_phys_addr_t addr, uint32_t val);
  71void stw_phys(target_phys_addr_t addr, uint32_t val);
  72void stl_phys(target_phys_addr_t addr, uint32_t val);
  73void stq_phys(target_phys_addr_t addr, uint64_t val);
  74
  75void cpu_physical_memory_write_rom(target_phys_addr_t addr,
  76                                   const uint8_t *buf, int len);
  77
  78#define IO_MEM_SHIFT       3
  79
  80#define IO_MEM_RAM         (0 << IO_MEM_SHIFT) /* hardcoded offset */
  81#define IO_MEM_ROM         (1 << IO_MEM_SHIFT) /* hardcoded offset */
  82#define IO_MEM_UNASSIGNED  (2 << IO_MEM_SHIFT)
  83#define IO_MEM_NOTDIRTY    (3 << IO_MEM_SHIFT)
  84
  85/* Acts like a ROM when read and like a device when written.  */
  86#define IO_MEM_ROMD        (1)
  87#define IO_MEM_SUBPAGE     (2)
  88#define IO_MEM_SUBWIDTH    (4)
  89
  90#endif /* !CPU_COMMON_H */
  91