]> Git Repo - qemu.git/blob - cpu-common.h
pflash_cfi02: fix incorrect TARGET_FMT_lx/d use
[qemu.git] / cpu-common.h
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 #include "qemu-queue.h"
12
13 #if !defined(CONFIG_USER_ONLY)
14
15 /* address in the RAM (different from a physical address) */
16 typedef unsigned long ram_addr_t;
17
18 /* memory API */
19
20 typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
21 typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
22
23 void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
24                                          ram_addr_t size,
25                                          ram_addr_t phys_offset,
26                                          ram_addr_t region_offset);
27 static inline void cpu_register_physical_memory(target_phys_addr_t start_addr,
28                                                 ram_addr_t size,
29                                                 ram_addr_t phys_offset)
30 {
31     cpu_register_physical_memory_offset(start_addr, size, phys_offset, 0);
32 }
33
34 ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr);
35 ram_addr_t qemu_ram_alloc(ram_addr_t);
36 void qemu_ram_free(ram_addr_t addr);
37 /* This should only be used for ram local to a device.  */
38 void *qemu_get_ram_ptr(ram_addr_t addr);
39 /* This should not be used by devices.  */
40 ram_addr_t qemu_ram_addr_from_host(void *ptr);
41
42 int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read,
43                            CPUWriteMemoryFunc * const *mem_write,
44                            void *opaque);
45 void cpu_unregister_io_memory(int table_address);
46
47 void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
48                             int len, int is_write);
49 static inline void cpu_physical_memory_read(target_phys_addr_t addr,
50                                             uint8_t *buf, int len)
51 {
52     cpu_physical_memory_rw(addr, buf, len, 0);
53 }
54 static inline void cpu_physical_memory_write(target_phys_addr_t addr,
55                                              const uint8_t *buf, int len)
56 {
57     cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
58 }
59 void *cpu_physical_memory_map(target_phys_addr_t addr,
60                               target_phys_addr_t *plen,
61                               int is_write);
62 void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len,
63                                int is_write, target_phys_addr_t access_len);
64 void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque));
65 void cpu_unregister_map_client(void *cookie);
66
67 struct CPUPhysMemoryClient;
68 typedef struct CPUPhysMemoryClient CPUPhysMemoryClient;
69 struct CPUPhysMemoryClient {
70     void (*set_memory)(struct CPUPhysMemoryClient *client,
71                        target_phys_addr_t start_addr,
72                        ram_addr_t size,
73                        ram_addr_t phys_offset);
74     int (*sync_dirty_bitmap)(struct CPUPhysMemoryClient *client,
75                              target_phys_addr_t start_addr,
76                              target_phys_addr_t end_addr);
77     int (*migration_log)(struct CPUPhysMemoryClient *client,
78                          int enable);
79     QLIST_ENTRY(CPUPhysMemoryClient) list;
80 };
81
82 void cpu_register_phys_memory_client(CPUPhysMemoryClient *);
83 void cpu_unregister_phys_memory_client(CPUPhysMemoryClient *);
84
85 /* Coalesced MMIO regions are areas where write operations can be reordered.
86  * This usually implies that write operations are side-effect free.  This allows
87  * batching which can make a major impact on performance when using
88  * virtualization.
89  */
90 void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
91
92 void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
93
94 void qemu_flush_coalesced_mmio_buffer(void);
95
96 uint32_t ldub_phys(target_phys_addr_t addr);
97 uint32_t lduw_phys(target_phys_addr_t addr);
98 uint32_t ldl_phys(target_phys_addr_t addr);
99 uint64_t ldq_phys(target_phys_addr_t addr);
100 void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
101 void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val);
102 void stb_phys(target_phys_addr_t addr, uint32_t val);
103 void stw_phys(target_phys_addr_t addr, uint32_t val);
104 void stl_phys(target_phys_addr_t addr, uint32_t val);
105 void stq_phys(target_phys_addr_t addr, uint64_t val);
106
107 void cpu_physical_memory_write_rom(target_phys_addr_t addr,
108                                    const uint8_t *buf, int len);
109
110 #define IO_MEM_SHIFT       3
111
112 #define IO_MEM_RAM         (0 << IO_MEM_SHIFT) /* hardcoded offset */
113 #define IO_MEM_ROM         (1 << IO_MEM_SHIFT) /* hardcoded offset */
114 #define IO_MEM_UNASSIGNED  (2 << IO_MEM_SHIFT)
115 #define IO_MEM_NOTDIRTY    (3 << IO_MEM_SHIFT)
116
117 /* Acts like a ROM when read and like a device when written.  */
118 #define IO_MEM_ROMD        (1)
119 #define IO_MEM_SUBPAGE     (2)
120 #define IO_MEM_SUBWIDTH    (4)
121
122 #endif
123
124 #endif /* !CPU_COMMON_H */
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