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cpu-common.h
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cpu-common.h
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#ifndef CPU_COMMON_H
#define CPU_COMMON_H 1
/* CPU interfaces that are target indpendent. */
#if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__)
#define WORDS_ALIGNED
#endif
#include "bswap.h"
/* address in the RAM (different from a physical address) */
typedef unsigned long ram_addr_t;
/* memory API */
typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
ram_addr_t size,
ram_addr_t phys_offset,
ram_addr_t region_offset);
static inline void cpu_register_physical_memory(target_phys_addr_t start_addr,
ram_addr_t size,
ram_addr_t phys_offset)
{
cpu_register_physical_memory_offset(start_addr, size, phys_offset, 0);
}
ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr);
ram_addr_t qemu_ram_alloc(ram_addr_t);
void qemu_ram_free(ram_addr_t addr);
/* This should only be used for ram local to a device. */
void *qemu_get_ram_ptr(ram_addr_t addr);
/* This should not be used by devices. */
ram_addr_t qemu_ram_addr_from_host(void *ptr);
int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read,
CPUWriteMemoryFunc * const *mem_write,
void *opaque);
void cpu_unregister_io_memory(int table_address);
void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
int len, int is_write);
static inline void cpu_physical_memory_read(target_phys_addr_t addr,
uint8_t *buf, int len)
{
cpu_physical_memory_rw(addr, buf, len, 0);
}
static inline void cpu_physical_memory_write(target_phys_addr_t addr,
const uint8_t *buf, int len)
{
cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
}
void *cpu_physical_memory_map(target_phys_addr_t addr,
target_phys_addr_t *plen,
int is_write);
void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len,
int is_write, target_phys_addr_t access_len);
void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque));
void cpu_unregister_map_client(void *cookie);
uint32_t ldub_phys(target_phys_addr_t addr);
uint32_t lduw_phys(target_phys_addr_t addr);
uint32_t ldl_phys(target_phys_addr_t addr);
uint64_t ldq_phys(target_phys_addr_t addr);
void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val);
void stb_phys(target_phys_addr_t addr, uint32_t val);
void stw_phys(target_phys_addr_t addr, uint32_t val);
void stl_phys(target_phys_addr_t addr, uint32_t val);
void stq_phys(target_phys_addr_t addr, uint64_t val);
void cpu_physical_memory_write_rom(target_phys_addr_t addr,
const uint8_t *buf, int len);
#define IO_MEM_SHIFT 3
#define IO_MEM_RAM (0 << IO_MEM_SHIFT) /* hardcoded offset */
#define IO_MEM_ROM (1 << IO_MEM_SHIFT) /* hardcoded offset */
#define IO_MEM_UNASSIGNED (2 << IO_MEM_SHIFT)
#define IO_MEM_NOTDIRTY (3 << IO_MEM_SHIFT)
/* Acts like a ROM when read and like a device when written. */
#define IO_MEM_ROMD (1)
#define IO_MEM_SUBPAGE (2)
#define IO_MEM_SUBWIDTH (4)
#endif /* !CPU_COMMON_H */