put src into packaging format
[adaptation/panda/qemu-arm-static.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__) || defined(__ia64__)
7 #define WORDS_ALIGNED
8 #endif
9
10 #ifdef TARGET_PHYS_ADDR_BITS
11 #include "targphys.h"
12 #endif
13
14 #ifndef NEED_CPU_H
15 #include "poison.h"
16 #endif
17
18 #include "bswap.h"
19 #include "qemu-queue.h"
20
21 #if !defined(CONFIG_USER_ONLY)
22
23 enum device_endian {
24     DEVICE_NATIVE_ENDIAN,
25     DEVICE_BIG_ENDIAN,
26     DEVICE_LITTLE_ENDIAN,
27 };
28
29 /* address in the RAM (different from a physical address) */
30 typedef unsigned long ram_addr_t;
31
32 /* memory API */
33
34 typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
35 typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
36
37 void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
38                                          ram_addr_t size,
39                                          ram_addr_t phys_offset,
40                                          ram_addr_t region_offset);
41 static inline void cpu_register_physical_memory(target_phys_addr_t start_addr,
42                                                 ram_addr_t size,
43                                                 ram_addr_t phys_offset)
44 {
45     cpu_register_physical_memory_offset(start_addr, size, phys_offset, 0);
46 }
47
48 ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr);
49 ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name,
50                         ram_addr_t size, void *host);
51 ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size);
52 void qemu_ram_free(ram_addr_t addr);
53 /* This should only be used for ram local to a device.  */
54 void *qemu_get_ram_ptr(ram_addr_t addr);
55 /* Same but slower, to use for migration, where the order of
56  * RAMBlocks must not change. */
57 void *qemu_safe_ram_ptr(ram_addr_t addr);
58 /* This should not be used by devices.  */
59 int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr);
60 ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr);
61
62 int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read,
63                            CPUWriteMemoryFunc * const *mem_write,
64                            void *opaque, enum device_endian endian);
65 void cpu_unregister_io_memory(int table_address);
66
67 void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
68                             int len, int is_write);
69 static inline void cpu_physical_memory_read(target_phys_addr_t addr,
70                                             uint8_t *buf, int len)
71 {
72     cpu_physical_memory_rw(addr, buf, len, 0);
73 }
74 static inline void cpu_physical_memory_write(target_phys_addr_t addr,
75                                              const uint8_t *buf, int len)
76 {
77     cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
78 }
79 void *cpu_physical_memory_map(target_phys_addr_t addr,
80                               target_phys_addr_t *plen,
81                               int is_write);
82 void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len,
83                                int is_write, target_phys_addr_t access_len);
84 void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque));
85 void cpu_unregister_map_client(void *cookie);
86
87 struct CPUPhysMemoryClient;
88 typedef struct CPUPhysMemoryClient CPUPhysMemoryClient;
89 struct CPUPhysMemoryClient {
90     void (*set_memory)(struct CPUPhysMemoryClient *client,
91                        target_phys_addr_t start_addr,
92                        ram_addr_t size,
93                        ram_addr_t phys_offset);
94     int (*sync_dirty_bitmap)(struct CPUPhysMemoryClient *client,
95                              target_phys_addr_t start_addr,
96                              target_phys_addr_t end_addr);
97     int (*migration_log)(struct CPUPhysMemoryClient *client,
98                          int enable);
99     QLIST_ENTRY(CPUPhysMemoryClient) list;
100 };
101
102 void cpu_register_phys_memory_client(CPUPhysMemoryClient *);
103 void cpu_unregister_phys_memory_client(CPUPhysMemoryClient *);
104
105 /* Coalesced MMIO regions are areas where write operations can be reordered.
106  * This usually implies that write operations are side-effect free.  This allows
107  * batching which can make a major impact on performance when using
108  * virtualization.
109  */
110 void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
111
112 void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
113
114 void qemu_flush_coalesced_mmio_buffer(void);
115
116 uint32_t ldub_phys(target_phys_addr_t addr);
117 uint32_t lduw_phys(target_phys_addr_t addr);
118 uint32_t ldl_phys(target_phys_addr_t addr);
119 uint64_t ldq_phys(target_phys_addr_t addr);
120 void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
121 void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val);
122 void stb_phys(target_phys_addr_t addr, uint32_t val);
123 void stw_phys(target_phys_addr_t addr, uint32_t val);
124 void stl_phys(target_phys_addr_t addr, uint32_t val);
125 void stq_phys(target_phys_addr_t addr, uint64_t val);
126
127 void cpu_physical_memory_write_rom(target_phys_addr_t addr,
128                                    const uint8_t *buf, int len);
129
130 #define IO_MEM_SHIFT       3
131
132 #define IO_MEM_RAM         (0 << IO_MEM_SHIFT) /* hardcoded offset */
133 #define IO_MEM_ROM         (1 << IO_MEM_SHIFT) /* hardcoded offset */
134 #define IO_MEM_UNASSIGNED  (2 << IO_MEM_SHIFT)
135 #define IO_MEM_NOTDIRTY    (3 << IO_MEM_SHIFT)
136
137 /* Acts like a ROM when read and like a device when written.  */
138 #define IO_MEM_ROMD        (1)
139 #define IO_MEM_SUBPAGE     (2)
140
141 #endif
142
143 #endif /* !CPU_COMMON_H */