i386/linux/linux-2.3.21/include/asm-sparc/ap1000/aplib.h

   1   /*
   2    * Copyright 1996 The Australian National University.
   3    * Copyright 1996 Fujitsu Laboratories Limited
   4    *
   5    * This software may be distributed under the terms of the Gnu
   6    * Public License version 2 or later
   7   */
   8
   9 /* aplib kernel interface definition */
  10
  11 #ifndef _APLIB_H_
  12 #define _APLIB_H_
  13
  14 struct aplib_struct {
  15         unsigned *ringbuf;
  16         unsigned write_pointer, read_pointer; /* in words */
  17         unsigned ringbuf_size; /* in words */
  18         unsigned rbuf_counter; /* read messages */
  19         unsigned rbuf_flag1, rbuf_flag2; /* received messages */
  20         unsigned *physical_cid; /* logical to physical mapping */
  21         unsigned *rel_cid;      /* logical to relative (RTC) mapping */
  22         unsigned numcells; /* number of logical cells */
  23         unsigned numcells_x; /* number of logical cells in x direction */
  24         unsigned numcells_y; /* number of logical cells in y direction */
  25         unsigned cid, tid;      /* this cells logical cell ID and task ID */
  26         unsigned cidx, cidy;    /* logical cell id in x and y direction */
  27         unsigned ack_flag, ack_request;
  28         unsigned ok_x, ok_y, ok_xy; /* whether hardware x, y and xy sends are allowed */
  29 };
  30
  31
  32 /*
  33  * the system ringbuffer structure
  34  * this is also the old way that tasks accessed the MSC hardware
  35  */
  36 struct ringbuf_struct {
  37         void *ringbuf; /* pointer to the ringbuf */
  38         void *shared; /* pointer to the shared page */
  39         int order; /* arg to __get_free_pages */
  40         unsigned write_ptr; /* write pointer into the ringbuf */
  41         unsigned vaddr; /* base virtual address of ringbuf for task */
  42         unsigned frag_count; /* how many words in the frag queue */
  43         unsigned frag_len; /* how many words expected in the frag queue */
  44         unsigned sq_fragment[16]; /* if the task switches part way through
  45                                      an op then shove the partial op here */
  46 };
  47
  48
  49 #define APLIB_INIT    1
  50 #define APLIB_SYNC    2
  51 #define APLIB_GET     3
  52 #define APLIB_PUT     4
  53 #define APLIB_SEND    5
  54 #define APLIB_PROBE   6
  55 #define APLIB_POLL    7
  56 #define APLIB_XSEND   8
  57 #define APLIB_YSEND   9
  58 #define APLIB_XYSEND 10
  59 #define APLIB_XPUT   11
  60 #define APLIB_YPUT   12
  61 #define APLIB_XYPUT  13
  62
  63
  64 /* message kinds */
  65 #define RBUF_SYSTEM  0
  66 #define RBUF_SEND    1
  67 #define RBUF_X_BRD   2
  68 #define RBUF_Y_BRD   3
  69 #define RBUF_XY_BRD  4
  70 #define RBUF_RPC     5
  71 #define RBUF_GET     6
  72 #define RBUF_MPI     7
  73 #define RBUF_BIGSEND 8
  74 #define RBUF_SEEN   0xE
  75 #define RBUF_READ   0xF
  76
  77 #define APLIB_PAGE_BASE 0xd0000000
  78 #define APLIB_PAGE_LEN  8192
  79
  80 struct aplib_init {
  81         unsigned numcells, cid;
  82         unsigned numcells_x, numcells_y;
  83         unsigned *phys_cells; /* physical cell list */
  84         unsigned *ringbuffer;  /* pointer to user supplied ring buffer */
  85         unsigned ringbuf_size; /* in words */
  86 };
  87
  88
  89 struct aplib_putget {
  90         unsigned cid;
  91         unsigned *src_addr, *dest_addr;
  92         unsigned size; /* in words */
  93         unsigned *dest_flag, *src_flag;
  94         unsigned ack;
  95 };
  96
  97
  98 struct aplib_send {
  99         /* the ordering here is actually quite important - the parts to be
 100            read by the bigrecv function must be in the first 24 bytes */
 101         unsigned src_addr;
 102         unsigned size;
 103         unsigned info1, info2;
 104         unsigned flag_addr;
 105         volatile unsigned flag;
 106         unsigned type;
 107         unsigned tag;
 108         unsigned cid;
 109 };
 110
 111 #ifdef __KERNEL__
 112 #define MAX_PUT_SIZE (1024*1024 - 1) /* in words */
 113 #define SMALL_SEND_THRESHOLD 128
 114
 115
 116 #endif
 117
 118 #endif /* _APLIB_H_ */
 119