Use new common, MIPS3 clock handling. This eliminates some port-specific
code in favor of common MIPS3 code.
This commit is contained in:
parent
b671de1aa9
commit
3bc99cc29a
|
@ -1,4 +1,4 @@
|
|||
# $NetBSD: files.alchemy,v 1.5 2006/02/23 17:14:01 shige Exp $
|
||||
# $NetBSD: files.alchemy,v 1.6 2006/09/02 22:54:47 gdamore Exp $
|
||||
|
||||
# Platform support - select just one, please
|
||||
defflag opt_alchemy.h ALCHEMY_GENERIC
|
||||
|
@ -20,14 +20,13 @@ file arch/evbmips/alchemy/omsal400.c alchemy_omsal400
|
|||
file arch/evbmips/alchemy/pciide_machdep.c pciide_common
|
||||
|
||||
file arch/mips/mips/bus_dma.c
|
||||
file arch/evbmips/evbmips/clock.c
|
||||
file arch/evbmips/evbmips/disksubr.c
|
||||
file arch/evbmips/evbmips/interrupt.c
|
||||
file arch/evbmips/evbmips/yamon.c
|
||||
|
||||
file arch/mips/mips/mips3_clock.c
|
||||
file arch/mips/mips/softintr.c
|
||||
|
||||
|
||||
# System bus
|
||||
device mainbus { }
|
||||
attach mainbus at root
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
# $NetBSD: files.atheros,v 1.3 2006/06/08 06:15:59 gdamore Exp $
|
||||
# $NetBSD: files.atheros,v 1.4 2006/09/02 22:54:47 gdamore Exp $
|
||||
|
||||
file arch/evbmips/atheros/mach_intr.c
|
||||
|
||||
|
@ -6,13 +6,12 @@ file arch/evbmips/atheros/autoconf.c
|
|||
file arch/evbmips/atheros/machdep.c
|
||||
|
||||
file arch/mips/mips/bus_dma.c
|
||||
file arch/evbmips/evbmips/clock.c
|
||||
file arch/evbmips/evbmips/disksubr.c
|
||||
file arch/evbmips/evbmips/interrupt.c
|
||||
|
||||
file arch/mips/mips/mips3_clock.c
|
||||
file arch/mips/mips/softintr.c
|
||||
|
||||
|
||||
# System bus
|
||||
device mainbus { }
|
||||
attach mainbus at root
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
# $NetBSD: files.malta,v 1.11 2006/03/28 03:43:57 gdamore Exp $
|
||||
# $NetBSD: files.malta,v 1.12 2006/09/02 22:54:47 gdamore Exp $
|
||||
|
||||
file arch/evbmips/malta/malta_bus_io.c
|
||||
file arch/evbmips/malta/malta_bus_mem.c
|
||||
|
@ -10,11 +10,11 @@ file arch/evbmips/malta/leds.c
|
|||
file arch/evbmips/malta/machdep.c
|
||||
|
||||
file arch/mips/mips/bus_dma.c
|
||||
file arch/evbmips/evbmips/clock.c
|
||||
file arch/evbmips/evbmips/disksubr.c
|
||||
file arch/evbmips/evbmips/interrupt.c
|
||||
file arch/evbmips/evbmips/yamon.c # XXX should be in arch/mips/yamon ?
|
||||
|
||||
file arch/mips/mips/mips3_clock.c
|
||||
file arch/mips/mips/softintr.c
|
||||
|
||||
# The autoconfiguration root.
|
||||
|
|
|
@ -1,162 +0,0 @@
|
|||
/* $NetBSD: clock.c,v 1.13 2006/09/02 20:27:21 gdamore Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1992, 1993
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to Berkeley by
|
||||
* the Systems Programming Group of the University of Utah Computer
|
||||
* Science Department and Ralph Campbell.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: Utah Hdr: clock.c 1.18 91/01/21
|
||||
*
|
||||
* @(#)clock.c 8.1 (Berkeley) 6/10/93
|
||||
*/
|
||||
/*
|
||||
* Copyright (c) 1988 University of Utah.
|
||||
*
|
||||
* This code is derived from software contributed to Berkeley by
|
||||
* the Systems Programming Group of the University of Utah Computer
|
||||
* Science Department and Ralph Campbell.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: Utah Hdr: clock.c 1.18 91/01/21
|
||||
*
|
||||
* @(#)clock.c 8.1 (Berkeley) 6/10/93
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
|
||||
|
||||
__KERNEL_RCSID(0, "$NetBSD: clock.c,v 1.13 2006/09/02 20:27:21 gdamore Exp $");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/device.h>
|
||||
#include <sys/sched.h>
|
||||
#include <sys/timetc.h>
|
||||
|
||||
#include <machine/bus.h>
|
||||
|
||||
#include <mips/locore.h>
|
||||
|
||||
#include <evbmips/evbmips/clockvar.h>
|
||||
|
||||
static struct timecounter evbmips_timecounter = {
|
||||
(timecounter_get_t *)mips3_cp0_count_read, /* get_timecount */
|
||||
0, /* no poll_pps */
|
||||
~0u, /* counter_mask */
|
||||
0, /* frequency */
|
||||
"mips_cp0", /* name */
|
||||
0, /* quality */
|
||||
};
|
||||
|
||||
/*
|
||||
* Start the real-time and statistics clocks. Leave stathz 0 since there
|
||||
* are no other timers available.
|
||||
*/
|
||||
void
|
||||
cpu_initclocks(void)
|
||||
{
|
||||
|
||||
next_cp0_clk_intr = mips3_cp0_count_read() + curcpu()->ci_cycles_per_hz;
|
||||
mips3_cp0_compare_write(next_cp0_clk_intr);
|
||||
|
||||
evbmips_timecounter.tc_frequency = curcpu()->ci_cpu_freq;
|
||||
if (mips_cpu_flags & CPU_MIPS_DOUBLE_COUNT)
|
||||
evbmips_timecounter.tc_frequency /= 2;
|
||||
|
||||
tc_init(&evbmips_timecounter);
|
||||
}
|
||||
|
||||
/*
|
||||
* We assume newhz is either stathz or profhz, and that neither will
|
||||
* change after being set up above. Could recalculate intervals here
|
||||
* but that would be a drag.
|
||||
*/
|
||||
void
|
||||
setstatclockrate(int newhz)
|
||||
{
|
||||
|
||||
/* nothing we can do */
|
||||
}
|
||||
|
||||
/*
|
||||
* Wait for at least "n" microseconds.
|
||||
*/
|
||||
void
|
||||
delay(int n)
|
||||
{
|
||||
uint32_t cur, last, delta, usecs;
|
||||
|
||||
last = mips3_cp0_count_read();
|
||||
delta = usecs = 0;
|
||||
|
||||
while (n > usecs) {
|
||||
cur = mips3_cp0_count_read();
|
||||
|
||||
/* Check to see if the timer has wrapped around. */
|
||||
if (cur < last)
|
||||
delta += ((curcpu()->ci_cycles_per_hz - last) + cur);
|
||||
else
|
||||
delta += (cur - last);
|
||||
|
||||
last = cur;
|
||||
|
||||
if (delta >= curcpu()->ci_divisor_delay) {
|
||||
usecs += delta / curcpu()->ci_divisor_delay;
|
||||
delta %= curcpu()->ci_divisor_delay;
|
||||
}
|
||||
}
|
||||
}
|
|
@ -1,34 +0,0 @@
|
|||
/* $NetBSD: clockvar.h,v 1.5 2006/03/28 03:43:57 gdamore Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Author: Chris G. Demetriou
|
||||
*
|
||||
* Permission to use, copy, modify and distribute this software and
|
||||
* its documentation is hereby granted, provided that both the copyright
|
||||
* notice and this permission notice appear in all copies of the
|
||||
* software, derivative works or modified versions, and any portions
|
||||
* thereof, and that both notices appear in supporting documentation.
|
||||
*
|
||||
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
||||
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
||||
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
||||
*
|
||||
* Carnegie Mellon requests users of this software to return to
|
||||
*
|
||||
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
||||
* School of Computer Science
|
||||
* Carnegie Mellon University
|
||||
* Pittsburgh PA 15213-3890
|
||||
*
|
||||
* any improvements or extensions that they make and grant Carnegie the
|
||||
* rights to redistribute these changes.
|
||||
*/
|
||||
|
||||
/* XXX need better places for following two declarations */
|
||||
/* CP0 count register; set in interrupt handler, used by microtime. */
|
||||
extern uint32_t last_cp0_count;
|
||||
/* CP0 compare register; set initially in cpu_initclocks. */
|
||||
extern uint32_t next_cp0_clk_intr;
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: interrupt.c,v 1.7 2005/12/11 12:17:11 christos Exp $ */
|
||||
/* $NetBSD: interrupt.c,v 1.8 2006/09/02 22:54:47 gdamore Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2001 The NetBSD Foundation, Inc.
|
||||
|
@ -37,29 +37,21 @@
|
|||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: interrupt.c,v 1.7 2005/12/11 12:17:11 christos Exp $");
|
||||
__KERNEL_RCSID(0, "$NetBSD: interrupt.c,v 1.8 2006/09/02 22:54:47 gdamore Exp $");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/device.h>
|
||||
|
||||
#include <uvm/uvm_extern.h>
|
||||
|
||||
#include <mips/mips3_clock.h>
|
||||
#include <machine/intr.h>
|
||||
#include <machine/locore.h>
|
||||
|
||||
#include <evbmips/evbmips/clockvar.h>
|
||||
|
||||
struct evcnt mips_int5_evcnt =
|
||||
EVCNT_INITIALIZER(EVCNT_TYPE_INTR, NULL, "mips", "int 5 (clock)");
|
||||
|
||||
uint32_t last_cp0_count; /* used by microtime() */
|
||||
uint32_t next_cp0_clk_intr; /* used to schedule hard clock interrupts */
|
||||
|
||||
void
|
||||
intr_init(void)
|
||||
{
|
||||
|
||||
evcnt_attach_static(&mips_int5_evcnt);
|
||||
evbmips_intr_init(); /* board specific stuff */
|
||||
|
||||
softintr_init();
|
||||
|
@ -68,38 +60,11 @@ intr_init(void)
|
|||
void
|
||||
cpu_intr(u_int32_t status, u_int32_t cause, u_int32_t pc, u_int32_t ipending)
|
||||
{
|
||||
struct clockframe cf;
|
||||
uint32_t new_cnt;
|
||||
|
||||
uvmexp.intrs++;
|
||||
|
||||
if (ipending & MIPS_INT_MASK_5) {
|
||||
last_cp0_count = next_cp0_clk_intr;
|
||||
next_cp0_clk_intr += curcpu()->ci_cycles_per_hz;
|
||||
mips3_cp0_compare_write(next_cp0_clk_intr);
|
||||
|
||||
/* Check for lost clock interrupts */
|
||||
new_cnt = mips3_cp0_count_read();
|
||||
|
||||
/*
|
||||
* Missed one or more clock interrupts, so let's start
|
||||
* counting again from the current value.
|
||||
*/
|
||||
if ((next_cp0_clk_intr - new_cnt) & 0x80000000) {
|
||||
#if 0 /* XXX - should add an event counter for this */
|
||||
missed_clk_intrs++;
|
||||
#endif
|
||||
|
||||
next_cp0_clk_intr = new_cnt +
|
||||
curcpu()->ci_cycles_per_hz;
|
||||
mips3_cp0_compare_write(next_cp0_clk_intr);
|
||||
}
|
||||
|
||||
cf.pc = pc;
|
||||
cf.sr = status;
|
||||
hardclock(&cf);
|
||||
|
||||
mips_int5_evcnt.ev_count++;
|
||||
/* call the common MIPS3 clock interrupt handler */
|
||||
mips3_clockintr(status, pc);
|
||||
|
||||
/* Re-enable clock interrupts. */
|
||||
cause &= ~MIPS_INT_MASK_5;
|
||||
|
|
Loading…
Reference in New Issue