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/* $OpenBSD: frame.h,v 1.1 2005/04/01 10:40:48 mickey Exp $ */
/*
* Copyright (c) 2005 Michael Shalayeff
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _MACHINE_FRAME_H_
#define _MACHINE_FRAME_H_
/*
* Call frame definitions
*/
#define HPPA_FRAME_SIZE (128)
#define HPPA_FRAME_PSP (-8)
#define HPPA_FRAME_RP (-16)
/*
* Macros to decode processor status word.
*/
#define HPPA_PC_PRIV_MASK 3
#define HPPA_PC_PRIV_KERN 0
#define HPPA_PC_PRIV_USER 3
#define USERMODE(pc) ((((register_t)pc) & HPPA_PC_PRIV_MASK) != HPPA_PC_PRIV_KERN)
#define KERNMODE(pc) (((register_t)pc) & ~HPPA_PC_PRIV_MASK)
/*
*
*/
#define HPPA_SID_MAX 0x7ffffe00
#define HPPA_SID_KERNEL 0
#define HPPA_PID_KERNEL 2
#ifndef _LOCORE
/*
* the trapframe is divided into two parts:
* one is saved while we are in the physical mode (beginning of the trap),
* and should be kept as small as possible, since all the interrupts will
* be lost during this phase, also it must be 64-bytes aligned, per
* pa-risc stack conventions, and its dependencies in the code (;
* the other part is filled out when we are already in the virtual mode,
* are able to catch interrupts (they are kept pending) and perform
* other trap activities (like tlb misses).
*/
struct trapframe {
unsigned long tf_flags;
unsigned long tf_r1;
unsigned long tf_rp;
unsigned long tf_r3;
unsigned long tf_r4;
unsigned long tf_r5;
unsigned long tf_r6;
unsigned long tf_r7;
unsigned long tf_r8;
unsigned long tf_r9;
unsigned long tf_r10;
unsigned long tf_r11;
unsigned long tf_r12;
unsigned long tf_r13;
unsigned long tf_r14;
unsigned long tf_r15;
unsigned long tf_r16;
unsigned long tf_r17;
unsigned long tf_r18;
unsigned long tf_args[8];
unsigned long tf_dp; /* r27 */
unsigned long tf_ret0;
unsigned long tf_ret1;
unsigned long tf_sp;
unsigned long tf_r31;
unsigned long tf_sr0;
unsigned long tf_sr1;
unsigned long tf_sr2;
unsigned long tf_sr3;
unsigned long tf_sr4;
unsigned long tf_sr5;
unsigned long tf_sr6;
unsigned long tf_sr7;
unsigned long tf_rctr;
unsigned long tf_ccr; /* cr10 */
unsigned long tf_iioq[2];
unsigned long tf_iisq[2];
unsigned long tf_pidr1;
unsigned long tf_pidr2;
unsigned long tf_eiem;
unsigned long tf_eirr;
unsigned long tf_ior;
unsigned long tf_isr;
unsigned long tf_iir;
unsigned long tf_ipsw;
unsigned long tf_ci; /* cr24 */
unsigned long tf_vtop; /* cr25 */
unsigned long tf_cr30; /* pa(u) */
unsigned long tf_cr27; /* user curthread */
unsigned long tf_sar;
unsigned long tf_pad[5];
};
#endif /* !_LOCORE */
#endif /* !_MACHINE_FRAME_H_ */
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