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 */ 96
