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)
136 lines
4.8 KiB
C
136 lines
4.8 KiB
C
/* $FreeBSD$ */
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/* $NetBSD: cpuconf.h,v 1.7 1997/11/06 00:42:03 thorpej Exp $ */
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#ifndef _ALPHA_CPUCONF_H
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#define _ALPHA_CPUCONF_H
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/*-
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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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 Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Additional reworking by Matthew Jacob for NASA/Ames Research Center.
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* Copyright (c) 1997
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*/
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#ifdef _KERNEL
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/*
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* Platform Specific Information and Function Hooks.
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*
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* The tags family and model information are strings describing the platform.
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*
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* The tag iobus describes the primary iobus for the platform- primarily
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* to give a hint as to where to start configuring. The likely choices
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* are one of tcasic, lca, apecs, cia, or tlsb.
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*
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*/
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struct device; /* XXX */
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struct resource; /* XXX */
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extern struct platform {
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/*
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* Platform Information.
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*/
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const char *family; /* Family Name */
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const char *model; /* Model (variant) Name */
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const char *iobus; /* Primary iobus name */
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/*
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* Platform Specific Function Hooks
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* cons_init - console initialization
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* device_register - boot configuration aid
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* iointr - I/O interrupt handler
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* clockintr - Clock Interrupt Handler
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* mcheck_handler - Platform Specific Machine Check Handler
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*/
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void (*cons_init)(void);
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void (*device_register)(struct device *, void *);
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void (*iointr)(void *, unsigned long);
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void (*clockintr)(int, uintfptr_t);
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void (*mcheck_handler)(unsigned long, struct trapframe *,
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unsigned long, unsigned long);
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void (*cpu_idle)(void);
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void (*pci_intr_init)(void);
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void (*pci_intr_map)(void *);
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int (*pci_intr_route)(struct device *, struct device *, int);
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void (*pci_intr_disable)(int);
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void (*pci_intr_enable)(int);
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int (*pci_setup_ide_intr)(struct device *dev,
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struct device *child,
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int chan, void (*fn)(void*), void *arg);
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int (*isa_setup_intr)(struct device *, struct device *,
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struct resource *, int, void *, void *, void **);
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int (*isa_teardown_intr)(struct device *, struct device *,
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struct resource *, void *);
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} platform;
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/*
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* Lookup table entry for Alpha system variations.
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*/
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struct alpha_variation_table {
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u_int64_t avt_variation; /* variation, from HWRPB */
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const char *avt_model; /* model string */
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};
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/*
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* There is an array of functions to initialize the platform structure.
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*
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* It's responsible for filling in the family, model_name and iobus
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* tags. It may optionally fill in the cons_init, device_register and
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* mcheck_handler tags.
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*
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* The iointr tag is filled in by set_iointr (in interrupt.c).
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* The clockintr tag is filled in by cpu_initclocks (in clock.c).
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*
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* nocpu is function to call when you can't figure what platform you're on.
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* There's no return from this function.
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*/
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struct cpuinit {
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void (*init)(int);
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const char *option;
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};
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#define cpu_notsupp(st) { platform_not_supported, st }
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#define cpu_init(fn, opt) { fn, opt }
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/*
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* Misc. support routines.
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*/
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const char *alpha_dsr_sysname(void);
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const char *alpha_variation_name(u_int64_t variation,
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const struct alpha_variation_table *avtp);
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const char *alpha_unknown_sysname(void);
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extern struct cpuinit cpuinit[];
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extern struct cpuinit api_cpuinit[];
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extern int ncpuinit;
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extern int napi_cpuinit;
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extern void platform_not_configured(int);
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extern void platform_not_supported(int);
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#endif /* _KERNEL */
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#endif /* !_ALPHA_CPUCONF_H */
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