frame.h

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    1 /*-
    2  * Copyright (c) 2001 Jake Burkholder.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  */
   28 
   29 #ifndef _MACHINE_FRAME_H_
   30 #define _MACHINE_FRAME_H_
   31 
   32 #define RW_SHIFT        7
   33 #define SPOFF           2047
   34 #define BIAS            SPOFF           /* XXX - open/netbsd compat */
   35 
   36 #ifndef LOCORE
   37 
   38 /*
   39  * NOTE: keep this structure in sync with struct reg and struct mcontext.
   40  */
   41 struct trapframe {
   42         uint64_t tf_global[8];
   43         uint64_t tf_out[8];
   44         uint64_t tf_fprs;
   45         uint64_t tf_fsr;
   46         uint64_t tf_gsr;
   47         uint64_t tf_pad0[1];
   48         uint64_t tf_pil;
   49         uint64_t tf_pad1[3];
   50         uint64_t tf_tnpc;
   51         uint64_t tf_tpc;
   52         uint64_t tf_tstate;
   53         uint64_t tf_pad2[2];
   54         uint64_t tf_wstate;
   55         uint64_t tf_asi;
   56         uint64_t tf_pad3[1];
   57 } __aligned(64);
   58 /* extra padding can go away once we re-shuffle user-land mcontext
   59  */
   60 
   61 #define tf_sp           tf_out[6]
   62 
   63 #define TF_DONE(tf) do { \
   64         tf->tf_tpc = tf->tf_tnpc; \
   65         tf->tf_tnpc += 4; \
   66 } while (0)
   67 
   68 struct frame {
   69         u_long  fr_local[8];
   70         u_long  fr_in[8];
   71         u_long  fr_pad[8];
   72 };
   73 #define fr_arg  fr_in
   74 #define fr_fp   fr_in[6]
   75 #define fr_pc   fr_in[7]
   76 
   77 #define v9next_frame(fp)        ((struct frame *)(fp->fr_fp + BIAS))
   78 
   79 /*
   80  * Frame used for pcb_rw.
   81  */
   82 struct rwindow {
   83         u_long  rw_local[8];
   84         u_long  rw_in[8];
   85 };
   86 
   87 struct thread;
   88 
   89 int     rwindow_save(struct thread *td);
   90 int     rwindow_load(struct thread *td, struct trapframe *tf, int n);
   91 
   92 #endif /* !LOCORE */
   93 
   94 #endif /* !_MACHINE_FRAME_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/sun4v/include/frame.h

FreeBSD/Linux Kernel Cross Reference
sys/sun4v/include/frame.h