75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
#ifndef CPU_COMMON_H
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#define CPU_COMMON_H
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/* CPU interfaces that are target independent. */
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#include "exec/hwaddr.h"
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/* The CPU list lock nests outside page_(un)lock or mmap_(un)lock */
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void qemu_init_cpu_list(void);
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void cpu_list_lock(void);
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void cpu_list_unlock(void);
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void tcg_flush_softmmu_tlb(struct uc_struct *uc);
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enum device_endian {
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DEVICE_NATIVE_ENDIAN,
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DEVICE_BIG_ENDIAN,
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DEVICE_LITTLE_ENDIAN,
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};
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#if defined(HOST_WORDS_BIGENDIAN)
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#define DEVICE_HOST_ENDIAN DEVICE_BIG_ENDIAN
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#else
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#define DEVICE_HOST_ENDIAN DEVICE_LITTLE_ENDIAN
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#endif
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/* address in the RAM (different from a physical address) */
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typedef uintptr_t ram_addr_t;
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# define RAM_ADDR_MAX UINTPTR_MAX
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# define RAM_ADDR_FMT "%" PRIxPTR
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/* memory API */
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typedef void CPUWriteMemoryFunc(void *opaque, hwaddr addr, uint32_t value);
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typedef uint32_t CPUReadMemoryFunc(void *opaque, hwaddr addr);
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/* This should not be used by devices. */
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ram_addr_t qemu_ram_addr_from_host(struct uc_struct *uc, void *ptr);
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RAMBlock *qemu_ram_block_from_host(struct uc_struct *uc, void *ptr,
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bool round_offset, ram_addr_t *offset);
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ram_addr_t qemu_ram_block_host_offset(RAMBlock *rb, void *host);
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void *qemu_ram_get_host_addr(RAMBlock *rb);
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ram_addr_t qemu_ram_get_offset(RAMBlock *rb);
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ram_addr_t qemu_ram_get_used_length(RAMBlock *rb);
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bool qemu_ram_is_shared(RAMBlock *rb);
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size_t qemu_ram_pagesize(RAMBlock *block);
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size_t qemu_ram_pagesize_largest(void);
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bool cpu_physical_memory_rw(AddressSpace *as, hwaddr addr, void *buf,
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hwaddr len, bool is_write);
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static inline void cpu_physical_memory_read(AddressSpace *as, hwaddr addr,
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void *buf, hwaddr len)
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{
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cpu_physical_memory_rw(as, addr, buf, len, false);
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}
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static inline void cpu_physical_memory_write(AddressSpace *as, hwaddr addr,
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const void *buf, hwaddr len)
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{
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cpu_physical_memory_rw(as, addr, (void *)buf, len, true);
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}
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void *cpu_physical_memory_map(AddressSpace *as, hwaddr addr,
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hwaddr *plen,
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bool is_write);
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void cpu_physical_memory_unmap(AddressSpace *as, void *buffer, hwaddr len,
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bool is_write, hwaddr access_len);
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bool cpu_physical_memory_is_io(AddressSpace *as, hwaddr phys_addr);
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void cpu_flush_icache_range(AddressSpace *as, hwaddr start, hwaddr len);
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int ram_block_discard_range(struct uc_struct *uc, RAMBlock *rb, uint64_t start, size_t length);
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#endif /* CPU_COMMON_H */
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