/[gxemul]/trunk/src/include/memory.h
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revision 31 by dpavlin, Mon Oct 8 16:20:26 2007 UTC revision 32 by dpavlin, Mon Oct 8 16:20:58 2007 UTC
# Line 28  Line 28 
28   *  SUCH DAMAGE.   *  SUCH DAMAGE.
29   *   *
30   *   *
31   *  $Id: memory.h,v 1.51 2006/07/08 12:30:03 debug Exp $   *  $Id: memory.h,v 1.52 2006/09/01 15:42:59 debug Exp $
32   *   *
33   *  Memory controller related functions.   *  Memory related functions.
34   */   */
35    
36  #include <sys/types.h>  #include <sys/types.h>
# Line 40  Line 40 
40    
41    
42  #define DEFAULT_RAM_IN_MB               32  #define DEFAULT_RAM_IN_MB               32
 #define MAX_DEVICES                     26  
43    
44  struct cpu;  struct cpu;
 struct translation_page_entry;  
45    
46    
47    /*
48     *  Memory mapped device
49     */
50    struct memory_device {
51            uint64_t        baseaddr;
52            uint64_t        endaddr;        /*  NOTE: after the last byte!  */
53            uint64_t        length;
54            int             flags;
55    
56            const char      *name;
57    
58            int             (*f)(struct cpu *,struct memory *,
59                                uint64_t,unsigned char *,size_t,int,void *);
60            void            *extra;
61    
62            unsigned char   *dyntrans_data;
63    
64            uint64_t        dyntrans_write_low;
65            uint64_t        dyntrans_write_high;
66    };
67    
68    
69    /*
70     *  Memory
71     *  ------
72     *
73     *  This struct defines a memory object. Most machines only use one memory
74     *  object (the main memory), but if necessary, multiple memories can be
75     *  used.
76     */
77  struct memory {  struct memory {
78          uint64_t        physical_max;          uint64_t        physical_max;
79          void            *pagetable;          void            *pagetable;
80    
81            int             dev_dyntrans_alignment;
82    
83          int             n_mmapped_devices;          int             n_mmapped_devices;
84          int             last_accessed_device;          int             last_accessed_device;
85          /*  The following two might speed up things a little bit.  */          /*  The following two might speed up things a little bit.  */
# Line 56  struct memory { Line 87  struct memory {
87          uint64_t        mmap_dev_minaddr;          uint64_t        mmap_dev_minaddr;
88          uint64_t        mmap_dev_maxaddr;          uint64_t        mmap_dev_maxaddr;
89    
90          const char      *dev_name[MAX_DEVICES];          struct memory_device *devices;
         uint64_t        dev_baseaddr[MAX_DEVICES];  
         uint64_t        dev_endaddr[MAX_DEVICES];       /*  after the end!  */  
         uint64_t        dev_length[MAX_DEVICES];  
         int             dev_flags[MAX_DEVICES];  
         void            *dev_extra[MAX_DEVICES];  
         int             (*dev_f[MAX_DEVICES])(struct cpu *,struct memory *,  
                             uint64_t,unsigned char *,size_t,int,void *);  
         unsigned char   *dev_dyntrans_data[MAX_DEVICES];  
   
         uint64_t        dev_dyntrans_write_low[MAX_DEVICES];  
         uint64_t        dev_dyntrans_write_high[MAX_DEVICES];  
   
         int             dev_dyntrans_alignment;  
91  };  };
92    
93  #define BITS_PER_PAGETABLE      20  #define BITS_PER_PAGETABLE      20
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