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