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/*
* Copyright 1996 The Australian National University.
* Copyright 1996 Fujitsu Laboratories Limited
*
* This software may be distributed under the terms of the Gnu
* Public License version 2 or later
*/
/* aplib kernel interface definition */
#ifndef _APLIB_H_
#define _APLIB_H_
struct aplib_struct {
unsigned *ringbuf;
unsigned write_pointer, read_pointer; /* in words */
unsigned ringbuf_size; /* in words */
unsigned rbuf_counter; /* read messages */
unsigned rbuf_flag1, rbuf_flag2; /* received messages */
unsigned *physical_cid; /* logical to physical mapping */
unsigned *rel_cid; /* logical to relative (RTC) mapping */
unsigned numcells; /* number of logical cells */
unsigned numcells_x; /* number of logical cells in x direction */
unsigned numcells_y; /* number of logical cells in y direction */
unsigned cid, tid; /* this cells logical cell ID and task ID */
unsigned cidx, cidy; /* logical cell id in x and y direction */
unsigned ack_flag, ack_request;
unsigned ok_x, ok_y, ok_xy; /* whether hardware x, y and xy sends are allowed */
};
/*
* the system ringbuffer structure
* this is also the old way that tasks accessed the MSC hardware
*/
struct ringbuf_struct {
void *ringbuf; /* pointer to the ringbuf */
void *shared; /* pointer to the shared page */
int order; /* arg to __get_free_pages */
unsigned write_ptr; /* write pointer into the ringbuf */
unsigned vaddr; /* base virtual address of ringbuf for task */
unsigned frag_count; /* how many words in the frag queue */
unsigned frag_len; /* how many words expected in the frag queue */
unsigned sq_fragment[16]; /* if the task switches part way through
an op then shove the partial op here */
};
#define APLIB_INIT 1
#define APLIB_SYNC 2
#define APLIB_GET 3
#define APLIB_PUT 4
#define APLIB_SEND 5
#define APLIB_PROBE 6
#define APLIB_POLL 7
#define APLIB_XSEND 8
#define APLIB_YSEND 9
#define APLIB_XYSEND 10
#define APLIB_XPUT 11
#define APLIB_YPUT 12
#define APLIB_XYPUT 13
/* message kinds */
#define RBUF_SYSTEM 0
#define RBUF_SEND 1
#define RBUF_X_BRD 2
#define RBUF_Y_BRD 3
#define RBUF_XY_BRD 4
#define RBUF_RPC 5
#define RBUF_GET 6
#define RBUF_MPI 7
#define RBUF_BIGSEND 8
#define RBUF_SEEN 0xE
#define RBUF_READ 0xF
#define APLIB_PAGE_BASE 0xd0000000
#define APLIB_PAGE_LEN 8192
struct aplib_init {
unsigned numcells, cid;
unsigned numcells_x, numcells_y;
unsigned *phys_cells; /* physical cell list */
unsigned *ringbuffer; /* pointer to user supplied ring buffer */
unsigned ringbuf_size; /* in words */
};
struct aplib_putget {
unsigned cid;
unsigned *src_addr, *dest_addr;
unsigned size; /* in words */
unsigned *dest_flag, *src_flag;
unsigned ack;
};
struct aplib_send {
/* the ordering here is actually quite important - the parts to be
read by the bigrecv function must be in the first 24 bytes */
unsigned src_addr;
unsigned size;
unsigned info1, info2;
unsigned flag_addr;
volatile unsigned flag;
unsigned type;
unsigned tag;
unsigned cid;
};
#ifdef __KERNEL__
#define MAX_PUT_SIZE (1024*1024 - 1) /* in words */
#define SMALL_SEND_THRESHOLD 128
#endif
#endif /* _APLIB_H_ */
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