Annotation of qemu/cpu-common.h, revision 1.1.1.1

1.1       root        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) */
                     13: #ifdef CONFIG_KQEMU
                     14: /* FIXME: This is wrong.  */
                     15: typedef uint32_t ram_addr_t;
                     16: #else
                     17: typedef unsigned long ram_addr_t;
                     18: #endif
                     19: 
                     20: /* memory API */
                     21: 
                     22: typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
                     23: typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
                     24: 
                     25: void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
                     26:                                          ram_addr_t size,
                     27:                                          ram_addr_t phys_offset,
                     28:                                          ram_addr_t region_offset);
                     29: static inline void cpu_register_physical_memory(target_phys_addr_t start_addr,
                     30:                                                 ram_addr_t size,
                     31:                                                 ram_addr_t phys_offset)
                     32: {
                     33:     cpu_register_physical_memory_offset(start_addr, size, phys_offset, 0);
                     34: }
                     35: 
                     36: ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr);
                     37: ram_addr_t qemu_ram_alloc(ram_addr_t);
                     38: void qemu_ram_free(ram_addr_t addr);
                     39: /* This should only be used for ram local to a device.  */
                     40: void *qemu_get_ram_ptr(ram_addr_t addr);
                     41: /* This should not be used by devices.  */
                     42: ram_addr_t qemu_ram_addr_from_host(void *ptr);
                     43: 
                     44: int cpu_register_io_memory(CPUReadMemoryFunc **mem_read,
                     45:                            CPUWriteMemoryFunc **mem_write,
                     46:                            void *opaque);
                     47: void cpu_unregister_io_memory(int table_address);
                     48: 
                     49: void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
                     50:                             int len, int is_write);
                     51: static inline void cpu_physical_memory_read(target_phys_addr_t addr,
                     52:                                             uint8_t *buf, int len)
                     53: {
                     54:     cpu_physical_memory_rw(addr, buf, len, 0);
                     55: }
                     56: static inline void cpu_physical_memory_write(target_phys_addr_t addr,
                     57:                                              const uint8_t *buf, int len)
                     58: {
                     59:     cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
                     60: }
                     61: void *cpu_physical_memory_map(target_phys_addr_t addr,
                     62:                               target_phys_addr_t *plen,
                     63:                               int is_write);
                     64: void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len,
                     65:                                int is_write, target_phys_addr_t access_len);
                     66: void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque));
                     67: void cpu_unregister_map_client(void *cookie);
                     68: 
                     69: uint32_t ldub_phys(target_phys_addr_t addr);
                     70: uint32_t lduw_phys(target_phys_addr_t addr);
                     71: uint32_t ldl_phys(target_phys_addr_t addr);
                     72: uint64_t ldq_phys(target_phys_addr_t addr);
                     73: void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
                     74: void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val);
                     75: void stb_phys(target_phys_addr_t addr, uint32_t val);
                     76: void stw_phys(target_phys_addr_t addr, uint32_t val);
                     77: void stl_phys(target_phys_addr_t addr, uint32_t val);
                     78: void stq_phys(target_phys_addr_t addr, uint64_t val);
                     79: 
                     80: void cpu_physical_memory_write_rom(target_phys_addr_t addr,
                     81:                                    const uint8_t *buf, int len);
                     82: 
                     83: #define IO_MEM_SHIFT       3
                     84: 
                     85: #define IO_MEM_RAM         (0 << IO_MEM_SHIFT) /* hardcoded offset */
                     86: #define IO_MEM_ROM         (1 << IO_MEM_SHIFT) /* hardcoded offset */
                     87: #define IO_MEM_UNASSIGNED  (2 << IO_MEM_SHIFT)
                     88: #define IO_MEM_NOTDIRTY    (3 << IO_MEM_SHIFT)
                     89: 
                     90: /* Acts like a ROM when read and like a device when written.  */
                     91: #define IO_MEM_ROMD        (1)
                     92: #define IO_MEM_SUBPAGE     (2)
                     93: #define IO_MEM_SUBWIDTH    (4)
                     94: 
                     95: #endif /* !CPU_COMMON_H */

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