/[dynamips]/upstream/dynamips-0.2.6-RC3/memory.h
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Annotation of /upstream/dynamips-0.2.6-RC3/memory.h

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Revision 4 - (hide annotations)
Sat Oct 6 16:06:49 2007 UTC (14 years, 9 months ago) by dpavlin
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dynamips-0.2.6-RC3

1 dpavlin 1 /*
2     * Cisco 7200 (Predator) simulation platform.
3     * Copyright (c) 2005,2006 Christophe Fillot (cf@utc.fr)
4     */
5    
6     #ifndef __MEMORY_H__
7     #define __MEMORY_H__
8    
9     #include <sys/types.h>
10     #include "utils.h"
11    
12     /* MTS operation */
13     #define MTS_READ 0
14     #define MTS_WRITE 1
15    
16     /* 0.5GB value */
17     #define MTS_SIZE_512M 0x20000000
18    
19     /* MTS flag bits: D (device), ACC (memory access), C (chain) */
20     #define MTS_FLAG_BITS 4
21     #define MTS_FLAG_MASK 0x0000000fUL
22    
23     /* Masks for MTS entries */
24     #define MTS_CHAIN_MASK 0x00000001
25     #define MTS_ACC_MASK 0x00000006
26     #define MTS_DEV_MASK 0x00000008
27     #define MTS_ADDR_MASK (~MTS_FLAG_MASK)
28    
29     /* Device ID mask and shift, device offset mask */
30     #define MTS_DEVID_MASK 0xfc000000
31     #define MTS_DEVID_SHIFT 26
32     #define MTS_DEVOFF_MASK 0x03fffff0
33    
34     /* Memory access flags */
35     #define MTS_ACC_OK 0x00000000 /* Access OK */
36     #define MTS_ACC_AE 0x00000002 /* Address Error */
37     #define MTS_ACC_T 0x00000004 /* TLB Exception */
38     #define MTS_ACC_U 0x00000006 /* Unexistent */
39    
40     /* Hash table size for MTS64 (default: [shift:16,bits:12]) */
41     #define MTS64_HASH_SHIFT 15
42     #define MTS64_HASH_BITS 15
43     #define MTS64_HASH_SIZE (1 << MTS64_HASH_BITS)
44     #define MTS64_HASH_MASK (MTS64_HASH_SIZE - 1)
45    
46     /* MTS64 hash on virtual addresses */
47 dpavlin 4 #define MTS64_HASH(vaddr) (((vaddr) >> MTS64_HASH_SHIFT) & MTS64_HASH_MASK)
48 dpavlin 1
49 dpavlin 4 /* Hash table size for MTS32 (default: [shift:15,bits:15]) */
50     #define MTS32_HASH_SHIFT 15
51     #define MTS32_HASH_BITS 15
52     #define MTS32_HASH_SIZE (1 << MTS32_HASH_BITS)
53     #define MTS32_HASH_MASK (MTS32_HASH_SIZE - 1)
54    
55     /* MTS32 hash on virtual addresses */
56     #define MTS32_HASH(vaddr) (((vaddr) >> MTS32_HASH_SHIFT) & MTS32_HASH_MASK)
57    
58 dpavlin 1 /* Number of entries per chunk */
59     #define MTS64_CHUNK_SIZE 256
60 dpavlin 4 #define MTS32_CHUNK_SIZE 256
61 dpavlin 1
62     /* MTS64: chunk definition */
63     struct mts64_chunk {
64     mts64_entry_t entry[MTS64_CHUNK_SIZE];
65     struct mts64_chunk *next;
66     u_int count;
67     };
68    
69 dpavlin 4 /* MTS32: chunk definition */
70     struct mts32_chunk {
71     mts32_entry_t entry[MTS32_CHUNK_SIZE];
72     struct mts32_chunk *next;
73     u_int count;
74     };
75    
76 dpavlin 1 /* Show the last memory accesses */
77     void memlog_dump(cpu_mips_t *cpu);
78    
79     /* Shutdown MTS subsystem */
80     void mts_shutdown(cpu_mips_t *cpu);
81    
82 dpavlin 4 /* Set the address mode */
83     int mts_set_addr_mode(cpu_mips_t *cpu,u_int addr_mode);
84    
85 dpavlin 1 /* Copy a memory block from VM physical RAM to real host */
86     void physmem_copy_from_vm(vm_instance_t *vm,void *real_buffer,
87     m_uint64_t paddr,size_t len);
88    
89     /* Copy a memory block to VM physical RAM from real host */
90     void physmem_copy_to_vm(vm_instance_t *vm,void *real_buffer,
91     m_uint64_t paddr,size_t len);
92    
93     /* Copy a 32-bit word from the VM physical RAM to real host */
94     m_uint32_t physmem_copy_u32_from_vm(vm_instance_t *vm,m_uint64_t paddr);
95    
96     /* Copy a 32-bit word to the VM physical RAM from real host */
97     void physmem_copy_u32_to_vm(vm_instance_t *vm,m_uint64_t paddr,m_uint32_t val);
98    
99     /* Copy a 16-bit word from the VM physical RAM to real host */
100     m_uint16_t physmem_copy_u16_from_vm(vm_instance_t *vm,m_uint64_t paddr);
101    
102     /* Copy a 16-bit word to the VM physical RAM from real host */
103     void physmem_copy_u16_to_vm(vm_instance_t *vm,m_uint64_t paddr,m_uint16_t val);
104    
105     /* DMA transfer operation */
106     void physmem_dma_transfer(vm_instance_t *vm,m_uint64_t src,m_uint64_t dst,
107     size_t len);
108    
109     /* strlen in VM physical memory */
110     size_t physmem_strlen(vm_instance_t *vm,m_uint64_t paddr);
111    
112     /* Physical memory dump (32-bit words) */
113     void physmem_dump_vm(vm_instance_t *vm,m_uint64_t paddr,m_uint32_t u32_count);
114    
115     #endif

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