b439e431bf
passing a pointer to an opaque clockframe structure and requiring the MD code to supply CLKF_FOO() macros to extract needed values out of the opaque structure, just pass the needed values directly. In practice this means passing the pair (usermode, pc) to hardclock() and profclock() and passing the boolean (usermode) to hardclock_cpu() and hardclock_process(). Other details: - Axe clockframe and CLKF_FOO() macros on all architectures. Basically, all the archs were taking a trapframe and converting it into a clockframe one way or another. Now they can just extract the PC and usermode values directly out of the trapframe and pass it to fooclock(). - Renamed hardclock_process() to hardclock_cpu() as the latter is more accurate. - On Alpha, we now run profclock() at hz (profhz == hz) rather than at the slower stathz. - On Alpha, for the TurboLaser machines that don't have an 8254 timecounter, call hardclock() directly. This removes an extra conditional check from every clock interrupt on Alpha on the BSP. There is probably room for even further pruning here by changing Alpha to use the simplified timecounter we use on x86 with the lapic timer since we don't get interrupts from the 8254 on Alpha anyway. - On x86, clkintr() shouldn't ever be called now unless using_lapic_timer is false, so add a KASSERT() to that affect and remove a condition to slightly optimize the non-lapic case. - Change prototypeof arm_handler_execute() so that it's first arg is a trapframe pointer rather than a void pointer for clarity. - Use KCOUNT macro in profclock() to lookup the kernel profiling bucket. Tested on: alpha, amd64, arm, i386, ia64, sparc64 Reviewed by: bde (mostly)
167 lines
4.1 KiB
C
167 lines
4.1 KiB
C
/* $NetBSD: frame.h,v 1.5 2002/10/19 00:10:54 bjh21 Exp $ */
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/*-
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* Copyright (c) 1994-1997 Mark Brinicombe.
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* Copyright (c) 1994 Brini.
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* All rights reserved.
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*
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* This code is derived from software written for Brini by Mark Brinicombe
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Brini.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* RiscBSD kernel project
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*
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* frame.h
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*
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* Stack frames structures
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*
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* Created : 30/09/94
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*
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* $FreeBSD$
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*
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*/
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#ifndef _MACHINE_FRAME_H_
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#define _MACHINE_FRAME_H_
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#ifndef _LOCORE
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#include <sys/signal.h>
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#include <sys/ucontext.h>
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/*
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* Trap frame. Pushed onto the kernel stack on a trap (synchronous exception).
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*/
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typedef struct trapframe {
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register_t tf_spsr; /* Zero on arm26 */
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register_t tf_r0;
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register_t tf_r1;
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register_t tf_r2;
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register_t tf_r3;
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register_t tf_r4;
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register_t tf_r5;
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register_t tf_r6;
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register_t tf_r7;
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register_t tf_r8;
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register_t tf_r9;
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register_t tf_r10;
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register_t tf_r11;
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register_t tf_r12;
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register_t tf_usr_sp;
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register_t tf_usr_lr;
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register_t tf_svc_sp; /* Not used on arm26 */
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register_t tf_svc_lr; /* Not used on arm26 */
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register_t tf_pc;
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} trapframe_t;
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/* Register numbers */
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#define tf_r13 tf_usr_sp
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#define tf_r14 tf_usr_lr
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#define tf_r15 tf_pc
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/*
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* * Scheduler activations upcall frame. Pushed onto user stack before
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* * calling an SA upcall.
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* */
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struct saframe {
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#if 0 /* in registers on entry to upcall */
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int sa_type;
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struct sa_t ** sa_sas;
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int sa_events;
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int sa_interrupted;
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#endif
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void * sa_arg;
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};
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/*
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* * Signal frame. Pushed onto user stack before calling sigcode.
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* */
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/* the pointers are use in the trampoline code to locate the ucontext */
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struct sigframe {
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siginfo_t sf_si; /* actual saved siginfo */
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ucontext_t sf_uc; /* actual saved ucontext */
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};
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/*
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* System stack frames.
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*/
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typedef struct irqframe {
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unsigned int if_spsr;
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unsigned int if_r0;
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unsigned int if_r1;
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unsigned int if_r2;
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unsigned int if_r3;
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unsigned int if_r4;
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unsigned int if_r5;
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unsigned int if_r6;
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unsigned int if_r7;
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unsigned int if_r8;
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unsigned int if_r9;
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unsigned int if_r10;
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unsigned int if_r11;
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unsigned int if_r12;
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unsigned int if_usr_sp;
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unsigned int if_usr_lr;
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unsigned int if_svc_sp;
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unsigned int if_svc_lr;
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unsigned int if_pc;
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} irqframe_t;
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/*
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* Switch frame
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*/
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struct switchframe {
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u_int sf_r4;
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u_int sf_r5;
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u_int sf_r6;
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u_int sf_r7;
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u_int sf_pc;
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};
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/*
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* Stack frame. Used during stack traces (db_trace.c)
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*/
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struct frame {
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u_int fr_fp;
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u_int fr_sp;
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u_int fr_lr;
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u_int fr_pc;
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};
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#endif /* !_LOCORE */
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#endif /* _MACHINE_FRAME_H_ */
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/* End of frame.h */
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