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freebsd-nq/sys/i386/isa/isa.c

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Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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.
*
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
* from: @(#)isa.c 7.2 (Berkeley) 5/13/91
Remove the alias splnone() for spl0(). It was used only once.
1994-09-20 05:07:32 +00:00
* $Id: isa.c,v 1.24 1994/09/13 17:06:47 phk Exp $
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
*/
/*
* code to manage AT bus
*
* 92/08/18 Frank P. MacLachlan (fpm@crash.cts.com):
* Fixed uninitialized variable problem and added code to deal
* with DMA page boundaries in isa_dmarangecheck(). Fixed word
* mode DMA count compution and reorganized DMA setup code in
* isa_dmastart()
*/
Change all #includes to follow the current Berkeley style. Some of these ``changes'' are actually not changes at all, but CVS sometimes has trouble telling the difference. This also includes support for second-directory compiles. This is not quite complete yet, as `config' doesn't yet do the right thing. You can still make it work trivially, however, by doing the following: rm /sys/compile mkdir /usr/obj/sys/compile ln -s M-. /sys/compile cd /sys/i386/conf config MYKERNEL cd ../../compile/MYKERNEL ln -s /sys @ rm machine ln -s @/i386/include machine make depend make
1994-08-13 03:50:34 +00:00
#include <sys/param.h>
#include <sys/systm.h> /* isn't it a joy */
#include <sys/kernel.h> /* to have three of these */
#include <sys/conf.h>
#include <sys/file.h>
#include <sys/buf.h>
#include <sys/uio.h>
#include <sys/syslog.h>
#include <sys/malloc.h>
#include <sys/rlist.h>
#include <machine/segments.h>
#include <vm/vm.h>
The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch. Reviewed by: Rodney W. Grimes Submitted by: John Dyson and David Greenman
1994-05-25 09:21:21 +00:00
#include <machine/spl.h>
Change all #includes to follow the current Berkeley style. Some of these ``changes'' are actually not changes at all, but CVS sometimes has trouble telling the difference. This also includes support for second-directory compiles. This is not quite complete yet, as `config' doesn't yet do the right thing. You can still make it work trivially, however, by doing the following: rm /sys/compile mkdir /usr/obj/sys/compile ln -s M-. /sys/compile cd /sys/i386/conf config MYKERNEL cd ../../compile/MYKERNEL ln -s /sys @ rm machine ln -s @/i386/include machine make depend make
1994-08-13 03:50:34 +00:00
#include <i386/isa/isa_device.h>
#include <i386/isa/isa.h>
#include <i386/isa/icu.h>
#include <i386/isa/ic/i8237.h>
#include <i386/isa/ic/i8042.h>
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
#include "vector.h"
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
/*
** Register definitions for DMA controller 1 (channels 0..3):
*/
#define DMA1_CHN(c) (IO_DMA1 + 1*(2*(c))) /* addr reg for channel c */
#define DMA1_SMSK (IO_DMA1 + 1*10) /* single mask register */
#define DMA1_MODE (IO_DMA1 + 1*11) /* mode register */
#define DMA1_FFC (IO_DMA1 + 1*12) /* clear first/last FF */
/*
** Register definitions for DMA controller 2 (channels 4..7):
*/
>From: Julian Elischer <julian@jules.dialix.oz.au> Date: Tue, 19 Oct 1993 02:22:41 -40962758 (WST) As the subject line says: I can;t believe this typo is still here. Has NOBODY used the isa_dmastart() routine for 16bit DMA? I know I just hit the dma regs directly for the AHA1542, and it appears that either everybody else does as well, or they only use 8bit DMA (e.g. floppy) Editors Note: The definition of DMA2_CHN was incorrectly using IO_DMA1!
1993-10-18 18:45:48 +00:00
#define DMA2_CHN(c) (IO_DMA2 + 2*(2*(c))) /* addr reg for channel c */
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
#define DMA2_SMSK (IO_DMA2 + 2*10) /* single mask register */
#define DMA2_MODE (IO_DMA2 + 2*11) /* mode register */
#define DMA2_FFC (IO_DMA2 + 2*12) /* clear first/last FF */
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
/*
* Bits to specify the type and amount of conflict checking.
*/
#define CC_ATTACH (1 << 0)
#define CC_DRQ (1 << 1)
#define CC_IOADDR (1 << 2)
#define CC_IRQ (1 << 3)
#define CC_MEMADDR (1 << 4)
/*
* XXX these defines should be in a central place.
*/
#define read_eflags() ({u_long ef; \
__asm("pushfl; popl %0" : "=a" (ef)); \
ef; })
#define write_eflags(ef) __asm("pushl %0; popfl" : : "a" ((u_long)(ef)))
u_long *intr_countp[ICU_LEN];
inthand2_t *intr_handler[ICU_LEN];
u_int intr_mask[ICU_LEN];
int intr_unit[ICU_LEN];
static inthand_t *fastintr[ICU_LEN] = {
&IDTVEC(fastintr0), &IDTVEC(fastintr1),
&IDTVEC(fastintr2), &IDTVEC(fastintr3),
&IDTVEC(fastintr4), &IDTVEC(fastintr5),
&IDTVEC(fastintr6), &IDTVEC(fastintr7),
&IDTVEC(fastintr8), &IDTVEC(fastintr9),
&IDTVEC(fastintr10), &IDTVEC(fastintr11),
&IDTVEC(fastintr12), &IDTVEC(fastintr13),
&IDTVEC(fastintr14), &IDTVEC(fastintr15)
};
static inthand_t *slowintr[ICU_LEN] = {
&IDTVEC(intr0), &IDTVEC(intr1), &IDTVEC(intr2), &IDTVEC(intr3),
&IDTVEC(intr4), &IDTVEC(intr5), &IDTVEC(intr6), &IDTVEC(intr7),
&IDTVEC(intr8), &IDTVEC(intr9), &IDTVEC(intr10), &IDTVEC(intr11),
&IDTVEC(intr12), &IDTVEC(intr13), &IDTVEC(intr14), &IDTVEC(intr15)
};
static void config_isadev __P((struct isa_device *isdp, u_int *mp));
static void conflict __P((struct isa_device *dvp, struct isa_device *tmpdvp,
int item, char const *whatnot, char const *reason,
char const *format));
static int haveseen __P((struct isa_device *dvp, struct isa_device *tmpdvp,
u_int checkbits));
static int haveseen_isadev __P((struct isa_device *dvp, u_int checkbits));
static inthand2_t isa_strayintr;
static void register_imask __P((struct isa_device *dvp, u_int mask));
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
/*
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
* print a conflict message
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
*/
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
static void
conflict(dvp, tmpdvp, item, whatnot, reason, format)
struct isa_device *dvp;
struct isa_device *tmpdvp;
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
int item;
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
char const *whatnot;
char const *reason;
char const *format;
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
{
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
printf("%s%d not %sed due to %s conflict with %s%d at ",
dvp->id_driver->name, dvp->id_unit, whatnot, reason,
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
tmpdvp->id_driver->name, tmpdvp->id_unit);
printf(format, item);
printf("\n");
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
/*
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
* Check to see if things are alread in use, like IRQ's, I/O addresses
* and Memory addresses.
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
*/
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
static int
haveseen(dvp, tmpdvp, checkbits)
struct isa_device *dvp;
struct isa_device *tmpdvp;
u_int checkbits;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
{
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
int status = 0;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
/*
* Only check against devices that have already been found
*/
if (tmpdvp->id_alive) {
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
char const *whatnot;
Reviewed by: Submitted by: 1) if_ie.c: Changed a printf and put a space in it. Formerly the "<3C507>" confused the syslog. He tried to see that as the priority to log that message. 2) isa_device.h: Changed the iobase variable from short to u_short. EISA Adresses can go up to 0xf000 and the sign extension doesn't look good in the probe output. Example: ep1 at 0xffff8000-0xffff8000f is not good :-), i like more a ep1 at 0x8000-0x8000f. 3) isa.c: Changed a string constant from "probe" to "prob", it gets later already an "ed" tagged on the end.
1994-09-02 22:13:34 +00:00
whatnot = checkbits & CC_ATTACH ? "attach" : "prob";
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
/*
* Check for I/O address conflict. We can only check the
* starting address of the device against the range of the
* device that has already been probed since we do not
* know how many I/O addresses this device uses.
*/
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
if (checkbits & CC_IOADDR && tmpdvp->id_alive != -1) {
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
if ((dvp->id_iobase >= tmpdvp->id_iobase) &&
(dvp->id_iobase <=
(tmpdvp->id_iobase + tmpdvp->id_alive - 1))) {
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
conflict(dvp, tmpdvp, dvp->id_iobase, whatnot,
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
"I/O address", "0x%x");
status = 1;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
}
/*
* Check for Memory address conflict. We can check for
* range overlap, but it will not catch all cases since the
* driver may adjust the msize paramater during probe, for
* now we just check that the starting address does not
* fall within any allocated region.
* XXX could add a second check after the probe for overlap,
* since at that time we would know the full range.
* XXX KERNBASE is a hack, we should have vaddr in the table!
*/
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
if (checkbits & CC_MEMADDR && tmpdvp->id_maddr) {
if ((KERNBASE + dvp->id_maddr >= tmpdvp->id_maddr) &&
(KERNBASE + dvp->id_maddr <=
(tmpdvp->id_maddr + tmpdvp->id_msize - 1))) {
conflict(dvp, tmpdvp, (int)dvp->id_maddr,
whatnot, "maddr", "0x%x");
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
status = 1;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
}
/*
* Check for IRQ conflicts.
*/
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
if (checkbits & CC_IRQ && tmpdvp->id_irq) {
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
if (tmpdvp->id_irq == dvp->id_irq) {
conflict(dvp, tmpdvp, ffs(dvp->id_irq) - 1,
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
whatnot, "irq", "%d");
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
status = 1;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
}
/*
* Check for DRQ conflicts.
*/
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
if (checkbits & CC_DRQ && tmpdvp->id_drq != -1) {
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
if (tmpdvp->id_drq == dvp->id_drq) {
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
conflict(dvp, tmpdvp, dvp->id_drq, whatnot,
"drq", "%d");
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
status = 1;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
}
}
return (status);
}
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
/*
* Search through all the isa_devtab_* tables looking for anything that
* conflicts with the current device.
*/
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
static int
haveseen_isadev(dvp, checkbits)
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
struct isa_device *dvp;
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
u_int checkbits;
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
{
struct isa_device *tmpdvp;
int status = 0;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
for (tmpdvp = isa_devtab_tty; tmpdvp->id_driver; tmpdvp++)
status |= haveseen(dvp, tmpdvp, checkbits);
for (tmpdvp = isa_devtab_bio; tmpdvp->id_driver; tmpdvp++)
status |= haveseen(dvp, tmpdvp, checkbits);
for (tmpdvp = isa_devtab_net; tmpdvp->id_driver; tmpdvp++)
status |= haveseen(dvp, tmpdvp, checkbits);
for (tmpdvp = isa_devtab_null; tmpdvp->id_driver; tmpdvp++)
status |= haveseen(dvp, tmpdvp, checkbits);
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
return(status);
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
/*
* Configure all ISA devices
*/
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
void
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
isa_configure() {
struct isa_device *dvp;
splhigh();
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
enable_intr();
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
INTREN(IRQ_SLAVE);
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
printf("Probing for devices on the ISA bus:\n");
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
for (dvp = isa_devtab_tty; dvp->id_driver; dvp++)
config_isadev(dvp, &tty_imask);
for (dvp = isa_devtab_bio; dvp->id_driver; dvp++)
config_isadev(dvp, &bio_imask);
for (dvp = isa_devtab_net; dvp->id_driver; dvp++)
config_isadev(dvp, &net_imask);
for (dvp = isa_devtab_null; dvp->id_driver; dvp++)
config_isadev(dvp, (u_int *)NULL);
New interrupt code from Bruce Evans. In additional to Bruce's attached list of changes, I've made the following additional changes: 1) i386/include/ipl.h renamed to spl.h as the name conflicts with the file of the same name in i386/isa/ipl.h. 2) changed all use of *mask (i.e. netmask, biomask, ttymask, etc) to *_imask (net_imask, etc). 3) changed vestige of splnet use in if_is to splimp. 4) got rid of "impmask" completely (Bruce had gotten rid of netmask), and are now using net_imask instead. 5) dozens of minor cruft to glue in Bruce's changes. These require changes I made to config(8) as well, and thus it must be rebuilt. -DG from Bruce Evans: sio: o No diff is supplied. Remove the define of setsofttty(). I hope that is enough. *.s: o i386/isa/debug.h no longer exists. The event counters became too much trouble to maintain. All function call entry and exception entry counters can be recovered by using profiling kernel (the new profiling supports all entry points; however, it is too slow to leave enabled all the time; it also). Only BDBTRAP() from debug.h is now used. That is moved to exception.s. It might be worth preserving SHOW_BITS() and calling it from _mcount() (if enabled). o T_ASTFLT is now only set just before calling trap(). o All exception handlers set SWI_AST_MASK in cpl as soon as possible after entry and arrange for _doreti to restore it atomically with exiting. It is not possible to set it atomically with entering the kernel, so it must be checked against the user mode bits in the trap frame before committing to using it. There is no place to store the old value of cpl for syscalls or traps, so there are some complications restoring it. Profiling stuff (mostly in *.s): o Changes to kern/subr_mcount.c, gcc and gprof are not supplied yet. o All interesting labels `foo' are renamed `_foo' and all uninteresting labels `_bar' are renamed `bar'. A small change to gprof allows ignoring labels not starting with underscores. o MCOUNT_LABEL() is to provide names for counters for times spent in exception handlers. o FAKE_MCOUNT() is a version of MCOUNT() suitable for exception handlers. Its arg is the pc where the exception occurred. The new mcount() pretends that this was a call from that pc to a suitable MCOUNT_LABEL(). o MEXITCOUNT is to turn off any timer started by MCOUNT(). /usr/src/sys/i386/i386/exception.s: o The non-BDB BPTTRAP() macros were doing a sti even when interrupts were disabled when the trap occurred. The sti (fixed) sti is actually a no-op unless you have my changes to machdep.c that make the debugger trap gates interrupt gates, but fixing that would make the ifdefs messier. ddb seems to be unharmed by both interrupts always disabled and always enabled (I had the branch in the fix back to front for some time :-(). o There is no known pushal bug. o tf_err can be left as garbage for syscalls. /usr/src/sys/i386/i386/locore.s: o Fix and update BDE_DEBUGGER support. o ENTRY(btext) before initialization was dangerous. o Warm boot shot was longer than intended. /usr/src/sys/i386/i386/machdep.c: o DON'T APPLY ALL OF THIS DIFF. It's what I'm using, but may require other changes. Use the following: o Remove aston() and setsoftclock(). Maybe use the following: o No netisr.h. o Spelling fix. o Delay to read the Rebooting message. o Fix for vm system unmapping a reduced area of memory after bounds_check_with_label() reduces the size of a physical i/o for a partition boundary. A similar fix is required in kern_physio.c. o Correct use of __CONCAT. It never worked here for non- ANSI cpp's. Is it time to drop support for non-ANSI? o gdt_segs init. 0xffffffffUL is bogus because ssd_limit is not 32 bits. The replacement may have the same value :-), but is more natural. o physmem was one page too low. Confusing variable names. Don't use the following: o Better numbers of buffers. Each 8K page requires up to 16 buffer headers. On my system, this results in 5576 buffers containing [up to] 2854912 bytes of memory. The usual allocation of about 384 buffers only holds 192K of disk if you use it on an fs with a block size of 512. o gdt changes for bdb. o *TGT -> *IDT changes for bdb. o #ifdefed changes for bdb. /usr/src/sys/i386/i386/microtime.s: o Use the correct asm macros. I think asm.h was copied from Mach just for microtime and isn't used now. It certainly doesn't belong in <sys>. Various macros are also duplicated in sys/i386/boot.h and libc/i386/*.h. o Don't switch to and from the IRR; it is guaranteed to be selected (default after ICU init and explicitly selected in isa.c too, and never changed until the old microtime clobbered it). /usr/src/sys/i386/i386/support.s: o Non-essential changes (none related to spls or profiling). o Removed slow loads of %gs again. The LDT support may require not relying on %gs, but loading it is not the way to fix it! Some places (copyin ...) forgot to load it. Loading it clobbers the user %gs. trap() still loads it after certain types of faults so that fuword() etc can rely on it without loading it explicitly. Exception handlers don't restore it. If we want to preserve the user %gs, then the fastest method is to not touch it except for context switches. Comparing with VM_MAXUSER_ADDRESS and branching takes only 2 or 4 cycles on a 486, while loading %gs takes 9 cycles and using it takes another. o Fixed a signed branch to unsigned. /usr/src/sys/i386/i386/swtch.s: o Move spl0() outside of idle loop. o Remove cli/sti from idle loop. sw1 does a cli, and in the unlikely event of an interrupt occurring and whichqs becoming zero, sw1 will just jump back to _idle. o There's no spl0() function in asm any more, so use splz(). o swtch() doesn't need to be superaligned, at least with the new mcounting. o Fixed a signed branch to unsigned. o Removed astoff(). /usr/src/sys/i386/i386/trap.c: o The decentralized extern decls were inconsistent, of course. o Fixed typo MATH_EMULTATE in comments. */ o Removed unused variables. o Old netmask is now impmask; print it instead. Perhaps we should print some of the new masks. o BTW, trap() should not print anything for normal debugger traps. /usr/src/sys/i386/include/asmacros.h: o DON'T APPLY ALL OF THIS DIFF. Just use some of the null macros as necessary. /usr/src/sys/i386/include/cpu.h: o CLKF_BASEPRI() changes since cpl == SWI_AST_MASK is now normal while the kernel is running. o Don't use var++ to set boolean variables. It fails after a mere 4G times :-) and is slower than storing a constant on [3-4]86s. /usr/src/sys/i386/include/cpufunc.h: o DON'T APPLY ALL OF THIS DIFF. You need mainly the include of <machine/ipl.h>. Unfortunately, <machine/ipl.h> is needed by almost everything for the inlines. /usr/src/sys/i386/include/ipl.h: o New file. Defines spl inlines and SWI macros and declares most variables related to hard and soft interrupt masks. /usr/src/sys/i386/isa/icu.h: o Moved definitions to <machine/ipl.h> /usr/src/sys/i386/isa/icu.s: o Software interrupts (SWIs) and delayed hardware interrupts (HWIs) are now handled uniformally, and dispatching them from splx() is more like dispatching them from _doreti. The dispatcher is essentially *(handler[ffs(ipending & ~cpl)](). o More care (not quite enough) is taken to avoid unbounded nesting of interrupts. o The interface to softclock() is changed so that a trap frame is not required. o Fast interrupt handlers are now handled more uniformally. Configuration is still too early (new handlers would require bits in <machine/ipl.h> and functions to vector.s). o splnnn() and splx() are no longer here; they are inline functions (could be macros for other compilers). splz() is the nontrivial part of the old splx(). /usr/src/sys/i386/isa/ipl.h o New file. Supposed to have only bus-dependent stuff. Perhaps the h/w masks should be declared here. /usr/src/sys/i386/isa/isa.c: o DON'T APPLY ALL OF THIS DIFF. You need only things involving *mask and *MASK and comments about them. netmask is now a pure software mask. It works like the softclock mask. /usr/src/sys/i386/isa/vector.s: o Reorganize AUTO_EOI* macros. o Option FAST_INTR_HANDLER_USERS_ES for people who don't trust fastintr handlers. o fastintr handlers need to metamorphose into ordinary interrupt handlers if their SWI bit has become set. Previously, sio had unintended latency for handling output completions and input of SLIP framing characters because this was not done. /usr/src/sys/net/netisr.h: o The machine-dependent stuff is now imported from <machine/ipl.h>. /usr/src/sys/sys/systm.h o DON'T APPLY ALL OF THIS DIFF. You need mainly the different splx() prototype. The spl*() prototypes are duplicated as inlines in <machine/ipl.h> but they need to be duplicated here in case there are no inlines. I sent systm.h and cpufunc.h to Garrett. We agree that spl0 should be replaced by splnone and not the other way around like I've done. /usr/src/sys/kern/kern_clock.c o splsoftclock() now lowers cpl so the direct call to softclock() works as intended. o softclock() interface changed to avoid passing the whole frame (some machines may need another change for profile_tick()). o profiling renamed _profiling to avoid ANSI namespace pollution. (I had to improve the mcount() interface and may as well fix it.) The GUPROF variant doesn't actually reference profiling here, but the 'U' in GUPROF should mean to select the microtimer mcount() and not change the interface.
1994-04-02 07:00:53 +00:00
bio_imask |= SWI_CLOCK_MASK;
net_imask |= SWI_NET_MASK;
tty_imask |= SWI_TTY_MASK;
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
/*
New interrupt code from Bruce Evans. In additional to Bruce's attached list of changes, I've made the following additional changes: 1) i386/include/ipl.h renamed to spl.h as the name conflicts with the file of the same name in i386/isa/ipl.h. 2) changed all use of *mask (i.e. netmask, biomask, ttymask, etc) to *_imask (net_imask, etc). 3) changed vestige of splnet use in if_is to splimp. 4) got rid of "impmask" completely (Bruce had gotten rid of netmask), and are now using net_imask instead. 5) dozens of minor cruft to glue in Bruce's changes. These require changes I made to config(8) as well, and thus it must be rebuilt. -DG from Bruce Evans: sio: o No diff is supplied. Remove the define of setsofttty(). I hope that is enough. *.s: o i386/isa/debug.h no longer exists. The event counters became too much trouble to maintain. All function call entry and exception entry counters can be recovered by using profiling kernel (the new profiling supports all entry points; however, it is too slow to leave enabled all the time; it also). Only BDBTRAP() from debug.h is now used. That is moved to exception.s. It might be worth preserving SHOW_BITS() and calling it from _mcount() (if enabled). o T_ASTFLT is now only set just before calling trap(). o All exception handlers set SWI_AST_MASK in cpl as soon as possible after entry and arrange for _doreti to restore it atomically with exiting. It is not possible to set it atomically with entering the kernel, so it must be checked against the user mode bits in the trap frame before committing to using it. There is no place to store the old value of cpl for syscalls or traps, so there are some complications restoring it. Profiling stuff (mostly in *.s): o Changes to kern/subr_mcount.c, gcc and gprof are not supplied yet. o All interesting labels `foo' are renamed `_foo' and all uninteresting labels `_bar' are renamed `bar'. A small change to gprof allows ignoring labels not starting with underscores. o MCOUNT_LABEL() is to provide names for counters for times spent in exception handlers. o FAKE_MCOUNT() is a version of MCOUNT() suitable for exception handlers. Its arg is the pc where the exception occurred. The new mcount() pretends that this was a call from that pc to a suitable MCOUNT_LABEL(). o MEXITCOUNT is to turn off any timer started by MCOUNT(). /usr/src/sys/i386/i386/exception.s: o The non-BDB BPTTRAP() macros were doing a sti even when interrupts were disabled when the trap occurred. The sti (fixed) sti is actually a no-op unless you have my changes to machdep.c that make the debugger trap gates interrupt gates, but fixing that would make the ifdefs messier. ddb seems to be unharmed by both interrupts always disabled and always enabled (I had the branch in the fix back to front for some time :-(). o There is no known pushal bug. o tf_err can be left as garbage for syscalls. /usr/src/sys/i386/i386/locore.s: o Fix and update BDE_DEBUGGER support. o ENTRY(btext) before initialization was dangerous. o Warm boot shot was longer than intended. /usr/src/sys/i386/i386/machdep.c: o DON'T APPLY ALL OF THIS DIFF. It's what I'm using, but may require other changes. Use the following: o Remove aston() and setsoftclock(). Maybe use the following: o No netisr.h. o Spelling fix. o Delay to read the Rebooting message. o Fix for vm system unmapping a reduced area of memory after bounds_check_with_label() reduces the size of a physical i/o for a partition boundary. A similar fix is required in kern_physio.c. o Correct use of __CONCAT. It never worked here for non- ANSI cpp's. Is it time to drop support for non-ANSI? o gdt_segs init. 0xffffffffUL is bogus because ssd_limit is not 32 bits. The replacement may have the same value :-), but is more natural. o physmem was one page too low. Confusing variable names. Don't use the following: o Better numbers of buffers. Each 8K page requires up to 16 buffer headers. On my system, this results in 5576 buffers containing [up to] 2854912 bytes of memory. The usual allocation of about 384 buffers only holds 192K of disk if you use it on an fs with a block size of 512. o gdt changes for bdb. o *TGT -> *IDT changes for bdb. o #ifdefed changes for bdb. /usr/src/sys/i386/i386/microtime.s: o Use the correct asm macros. I think asm.h was copied from Mach just for microtime and isn't used now. It certainly doesn't belong in <sys>. Various macros are also duplicated in sys/i386/boot.h and libc/i386/*.h. o Don't switch to and from the IRR; it is guaranteed to be selected (default after ICU init and explicitly selected in isa.c too, and never changed until the old microtime clobbered it). /usr/src/sys/i386/i386/support.s: o Non-essential changes (none related to spls or profiling). o Removed slow loads of %gs again. The LDT support may require not relying on %gs, but loading it is not the way to fix it! Some places (copyin ...) forgot to load it. Loading it clobbers the user %gs. trap() still loads it after certain types of faults so that fuword() etc can rely on it without loading it explicitly. Exception handlers don't restore it. If we want to preserve the user %gs, then the fastest method is to not touch it except for context switches. Comparing with VM_MAXUSER_ADDRESS and branching takes only 2 or 4 cycles on a 486, while loading %gs takes 9 cycles and using it takes another. o Fixed a signed branch to unsigned. /usr/src/sys/i386/i386/swtch.s: o Move spl0() outside of idle loop. o Remove cli/sti from idle loop. sw1 does a cli, and in the unlikely event of an interrupt occurring and whichqs becoming zero, sw1 will just jump back to _idle. o There's no spl0() function in asm any more, so use splz(). o swtch() doesn't need to be superaligned, at least with the new mcounting. o Fixed a signed branch to unsigned. o Removed astoff(). /usr/src/sys/i386/i386/trap.c: o The decentralized extern decls were inconsistent, of course. o Fixed typo MATH_EMULTATE in comments. */ o Removed unused variables. o Old netmask is now impmask; print it instead. Perhaps we should print some of the new masks. o BTW, trap() should not print anything for normal debugger traps. /usr/src/sys/i386/include/asmacros.h: o DON'T APPLY ALL OF THIS DIFF. Just use some of the null macros as necessary. /usr/src/sys/i386/include/cpu.h: o CLKF_BASEPRI() changes since cpl == SWI_AST_MASK is now normal while the kernel is running. o Don't use var++ to set boolean variables. It fails after a mere 4G times :-) and is slower than storing a constant on [3-4]86s. /usr/src/sys/i386/include/cpufunc.h: o DON'T APPLY ALL OF THIS DIFF. You need mainly the include of <machine/ipl.h>. Unfortunately, <machine/ipl.h> is needed by almost everything for the inlines. /usr/src/sys/i386/include/ipl.h: o New file. Defines spl inlines and SWI macros and declares most variables related to hard and soft interrupt masks. /usr/src/sys/i386/isa/icu.h: o Moved definitions to <machine/ipl.h> /usr/src/sys/i386/isa/icu.s: o Software interrupts (SWIs) and delayed hardware interrupts (HWIs) are now handled uniformally, and dispatching them from splx() is more like dispatching them from _doreti. The dispatcher is essentially *(handler[ffs(ipending & ~cpl)](). o More care (not quite enough) is taken to avoid unbounded nesting of interrupts. o The interface to softclock() is changed so that a trap frame is not required. o Fast interrupt handlers are now handled more uniformally. Configuration is still too early (new handlers would require bits in <machine/ipl.h> and functions to vector.s). o splnnn() and splx() are no longer here; they are inline functions (could be macros for other compilers). splz() is the nontrivial part of the old splx(). /usr/src/sys/i386/isa/ipl.h o New file. Supposed to have only bus-dependent stuff. Perhaps the h/w masks should be declared here. /usr/src/sys/i386/isa/isa.c: o DON'T APPLY ALL OF THIS DIFF. You need only things involving *mask and *MASK and comments about them. netmask is now a pure software mask. It works like the softclock mask. /usr/src/sys/i386/isa/vector.s: o Reorganize AUTO_EOI* macros. o Option FAST_INTR_HANDLER_USERS_ES for people who don't trust fastintr handlers. o fastintr handlers need to metamorphose into ordinary interrupt handlers if their SWI bit has become set. Previously, sio had unintended latency for handling output completions and input of SLIP framing characters because this was not done. /usr/src/sys/net/netisr.h: o The machine-dependent stuff is now imported from <machine/ipl.h>. /usr/src/sys/sys/systm.h o DON'T APPLY ALL OF THIS DIFF. You need mainly the different splx() prototype. The spl*() prototypes are duplicated as inlines in <machine/ipl.h> but they need to be duplicated here in case there are no inlines. I sent systm.h and cpufunc.h to Garrett. We agree that spl0 should be replaced by splnone and not the other way around like I've done. /usr/src/sys/kern/kern_clock.c o splsoftclock() now lowers cpl so the direct call to softclock() works as intended. o softclock() interface changed to avoid passing the whole frame (some machines may need another change for profile_tick()). o profiling renamed _profiling to avoid ANSI namespace pollution. (I had to improve the mcount() interface and may as well fix it.) The GUPROF variant doesn't actually reference profiling here, but the 'U' in GUPROF should mean to select the microtimer mcount() and not change the interface.
1994-04-02 07:00:53 +00:00
* XXX we should really add the tty device to net_imask when the line is
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
* switched to SLIPDISC, and then remove it when it is switched away from
New interrupt code from Bruce Evans. In additional to Bruce's attached list of changes, I've made the following additional changes: 1) i386/include/ipl.h renamed to spl.h as the name conflicts with the file of the same name in i386/isa/ipl.h. 2) changed all use of *mask (i.e. netmask, biomask, ttymask, etc) to *_imask (net_imask, etc). 3) changed vestige of splnet use in if_is to splimp. 4) got rid of "impmask" completely (Bruce had gotten rid of netmask), and are now using net_imask instead. 5) dozens of minor cruft to glue in Bruce's changes. These require changes I made to config(8) as well, and thus it must be rebuilt. -DG from Bruce Evans: sio: o No diff is supplied. Remove the define of setsofttty(). I hope that is enough. *.s: o i386/isa/debug.h no longer exists. The event counters became too much trouble to maintain. All function call entry and exception entry counters can be recovered by using profiling kernel (the new profiling supports all entry points; however, it is too slow to leave enabled all the time; it also). Only BDBTRAP() from debug.h is now used. That is moved to exception.s. It might be worth preserving SHOW_BITS() and calling it from _mcount() (if enabled). o T_ASTFLT is now only set just before calling trap(). o All exception handlers set SWI_AST_MASK in cpl as soon as possible after entry and arrange for _doreti to restore it atomically with exiting. It is not possible to set it atomically with entering the kernel, so it must be checked against the user mode bits in the trap frame before committing to using it. There is no place to store the old value of cpl for syscalls or traps, so there are some complications restoring it. Profiling stuff (mostly in *.s): o Changes to kern/subr_mcount.c, gcc and gprof are not supplied yet. o All interesting labels `foo' are renamed `_foo' and all uninteresting labels `_bar' are renamed `bar'. A small change to gprof allows ignoring labels not starting with underscores. o MCOUNT_LABEL() is to provide names for counters for times spent in exception handlers. o FAKE_MCOUNT() is a version of MCOUNT() suitable for exception handlers. Its arg is the pc where the exception occurred. The new mcount() pretends that this was a call from that pc to a suitable MCOUNT_LABEL(). o MEXITCOUNT is to turn off any timer started by MCOUNT(). /usr/src/sys/i386/i386/exception.s: o The non-BDB BPTTRAP() macros were doing a sti even when interrupts were disabled when the trap occurred. The sti (fixed) sti is actually a no-op unless you have my changes to machdep.c that make the debugger trap gates interrupt gates, but fixing that would make the ifdefs messier. ddb seems to be unharmed by both interrupts always disabled and always enabled (I had the branch in the fix back to front for some time :-(). o There is no known pushal bug. o tf_err can be left as garbage for syscalls. /usr/src/sys/i386/i386/locore.s: o Fix and update BDE_DEBUGGER support. o ENTRY(btext) before initialization was dangerous. o Warm boot shot was longer than intended. /usr/src/sys/i386/i386/machdep.c: o DON'T APPLY ALL OF THIS DIFF. It's what I'm using, but may require other changes. Use the following: o Remove aston() and setsoftclock(). Maybe use the following: o No netisr.h. o Spelling fix. o Delay to read the Rebooting message. o Fix for vm system unmapping a reduced area of memory after bounds_check_with_label() reduces the size of a physical i/o for a partition boundary. A similar fix is required in kern_physio.c. o Correct use of __CONCAT. It never worked here for non- ANSI cpp's. Is it time to drop support for non-ANSI? o gdt_segs init. 0xffffffffUL is bogus because ssd_limit is not 32 bits. The replacement may have the same value :-), but is more natural. o physmem was one page too low. Confusing variable names. Don't use the following: o Better numbers of buffers. Each 8K page requires up to 16 buffer headers. On my system, this results in 5576 buffers containing [up to] 2854912 bytes of memory. The usual allocation of about 384 buffers only holds 192K of disk if you use it on an fs with a block size of 512. o gdt changes for bdb. o *TGT -> *IDT changes for bdb. o #ifdefed changes for bdb. /usr/src/sys/i386/i386/microtime.s: o Use the correct asm macros. I think asm.h was copied from Mach just for microtime and isn't used now. It certainly doesn't belong in <sys>. Various macros are also duplicated in sys/i386/boot.h and libc/i386/*.h. o Don't switch to and from the IRR; it is guaranteed to be selected (default after ICU init and explicitly selected in isa.c too, and never changed until the old microtime clobbered it). /usr/src/sys/i386/i386/support.s: o Non-essential changes (none related to spls or profiling). o Removed slow loads of %gs again. The LDT support may require not relying on %gs, but loading it is not the way to fix it! Some places (copyin ...) forgot to load it. Loading it clobbers the user %gs. trap() still loads it after certain types of faults so that fuword() etc can rely on it without loading it explicitly. Exception handlers don't restore it. If we want to preserve the user %gs, then the fastest method is to not touch it except for context switches. Comparing with VM_MAXUSER_ADDRESS and branching takes only 2 or 4 cycles on a 486, while loading %gs takes 9 cycles and using it takes another. o Fixed a signed branch to unsigned. /usr/src/sys/i386/i386/swtch.s: o Move spl0() outside of idle loop. o Remove cli/sti from idle loop. sw1 does a cli, and in the unlikely event of an interrupt occurring and whichqs becoming zero, sw1 will just jump back to _idle. o There's no spl0() function in asm any more, so use splz(). o swtch() doesn't need to be superaligned, at least with the new mcounting. o Fixed a signed branch to unsigned. o Removed astoff(). /usr/src/sys/i386/i386/trap.c: o The decentralized extern decls were inconsistent, of course. o Fixed typo MATH_EMULTATE in comments. */ o Removed unused variables. o Old netmask is now impmask; print it instead. Perhaps we should print some of the new masks. o BTW, trap() should not print anything for normal debugger traps. /usr/src/sys/i386/include/asmacros.h: o DON'T APPLY ALL OF THIS DIFF. Just use some of the null macros as necessary. /usr/src/sys/i386/include/cpu.h: o CLKF_BASEPRI() changes since cpl == SWI_AST_MASK is now normal while the kernel is running. o Don't use var++ to set boolean variables. It fails after a mere 4G times :-) and is slower than storing a constant on [3-4]86s. /usr/src/sys/i386/include/cpufunc.h: o DON'T APPLY ALL OF THIS DIFF. You need mainly the include of <machine/ipl.h>. Unfortunately, <machine/ipl.h> is needed by almost everything for the inlines. /usr/src/sys/i386/include/ipl.h: o New file. Defines spl inlines and SWI macros and declares most variables related to hard and soft interrupt masks. /usr/src/sys/i386/isa/icu.h: o Moved definitions to <machine/ipl.h> /usr/src/sys/i386/isa/icu.s: o Software interrupts (SWIs) and delayed hardware interrupts (HWIs) are now handled uniformally, and dispatching them from splx() is more like dispatching them from _doreti. The dispatcher is essentially *(handler[ffs(ipending & ~cpl)](). o More care (not quite enough) is taken to avoid unbounded nesting of interrupts. o The interface to softclock() is changed so that a trap frame is not required. o Fast interrupt handlers are now handled more uniformally. Configuration is still too early (new handlers would require bits in <machine/ipl.h> and functions to vector.s). o splnnn() and splx() are no longer here; they are inline functions (could be macros for other compilers). splz() is the nontrivial part of the old splx(). /usr/src/sys/i386/isa/ipl.h o New file. Supposed to have only bus-dependent stuff. Perhaps the h/w masks should be declared here. /usr/src/sys/i386/isa/isa.c: o DON'T APPLY ALL OF THIS DIFF. You need only things involving *mask and *MASK and comments about them. netmask is now a pure software mask. It works like the softclock mask. /usr/src/sys/i386/isa/vector.s: o Reorganize AUTO_EOI* macros. o Option FAST_INTR_HANDLER_USERS_ES for people who don't trust fastintr handlers. o fastintr handlers need to metamorphose into ordinary interrupt handlers if their SWI bit has become set. Previously, sio had unintended latency for handling output completions and input of SLIP framing characters because this was not done. /usr/src/sys/net/netisr.h: o The machine-dependent stuff is now imported from <machine/ipl.h>. /usr/src/sys/sys/systm.h o DON'T APPLY ALL OF THIS DIFF. You need mainly the different splx() prototype. The spl*() prototypes are duplicated as inlines in <machine/ipl.h> but they need to be duplicated here in case there are no inlines. I sent systm.h and cpufunc.h to Garrett. We agree that spl0 should be replaced by splnone and not the other way around like I've done. /usr/src/sys/kern/kern_clock.c o splsoftclock() now lowers cpl so the direct call to softclock() works as intended. o softclock() interface changed to avoid passing the whole frame (some machines may need another change for profile_tick()). o profiling renamed _profiling to avoid ANSI namespace pollution. (I had to improve the mcount() interface and may as well fix it.) The GUPROF variant doesn't actually reference profiling here, but the 'U' in GUPROF should mean to select the microtimer mcount() and not change the interface.
1994-04-02 07:00:53 +00:00
* SLIPDISC. No need to block out ALL ttys during a splimp when only one
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
* of them is running slip.
New interrupt code from Bruce Evans. In additional to Bruce's attached list of changes, I've made the following additional changes: 1) i386/include/ipl.h renamed to spl.h as the name conflicts with the file of the same name in i386/isa/ipl.h. 2) changed all use of *mask (i.e. netmask, biomask, ttymask, etc) to *_imask (net_imask, etc). 3) changed vestige of splnet use in if_is to splimp. 4) got rid of "impmask" completely (Bruce had gotten rid of netmask), and are now using net_imask instead. 5) dozens of minor cruft to glue in Bruce's changes. These require changes I made to config(8) as well, and thus it must be rebuilt. -DG from Bruce Evans: sio: o No diff is supplied. Remove the define of setsofttty(). I hope that is enough. *.s: o i386/isa/debug.h no longer exists. The event counters became too much trouble to maintain. All function call entry and exception entry counters can be recovered by using profiling kernel (the new profiling supports all entry points; however, it is too slow to leave enabled all the time; it also). Only BDBTRAP() from debug.h is now used. That is moved to exception.s. It might be worth preserving SHOW_BITS() and calling it from _mcount() (if enabled). o T_ASTFLT is now only set just before calling trap(). o All exception handlers set SWI_AST_MASK in cpl as soon as possible after entry and arrange for _doreti to restore it atomically with exiting. It is not possible to set it atomically with entering the kernel, so it must be checked against the user mode bits in the trap frame before committing to using it. There is no place to store the old value of cpl for syscalls or traps, so there are some complications restoring it. Profiling stuff (mostly in *.s): o Changes to kern/subr_mcount.c, gcc and gprof are not supplied yet. o All interesting labels `foo' are renamed `_foo' and all uninteresting labels `_bar' are renamed `bar'. A small change to gprof allows ignoring labels not starting with underscores. o MCOUNT_LABEL() is to provide names for counters for times spent in exception handlers. o FAKE_MCOUNT() is a version of MCOUNT() suitable for exception handlers. Its arg is the pc where the exception occurred. The new mcount() pretends that this was a call from that pc to a suitable MCOUNT_LABEL(). o MEXITCOUNT is to turn off any timer started by MCOUNT(). /usr/src/sys/i386/i386/exception.s: o The non-BDB BPTTRAP() macros were doing a sti even when interrupts were disabled when the trap occurred. The sti (fixed) sti is actually a no-op unless you have my changes to machdep.c that make the debugger trap gates interrupt gates, but fixing that would make the ifdefs messier. ddb seems to be unharmed by both interrupts always disabled and always enabled (I had the branch in the fix back to front for some time :-(). o There is no known pushal bug. o tf_err can be left as garbage for syscalls. /usr/src/sys/i386/i386/locore.s: o Fix and update BDE_DEBUGGER support. o ENTRY(btext) before initialization was dangerous. o Warm boot shot was longer than intended. /usr/src/sys/i386/i386/machdep.c: o DON'T APPLY ALL OF THIS DIFF. It's what I'm using, but may require other changes. Use the following: o Remove aston() and setsoftclock(). Maybe use the following: o No netisr.h. o Spelling fix. o Delay to read the Rebooting message. o Fix for vm system unmapping a reduced area of memory after bounds_check_with_label() reduces the size of a physical i/o for a partition boundary. A similar fix is required in kern_physio.c. o Correct use of __CONCAT. It never worked here for non- ANSI cpp's. Is it time to drop support for non-ANSI? o gdt_segs init. 0xffffffffUL is bogus because ssd_limit is not 32 bits. The replacement may have the same value :-), but is more natural. o physmem was one page too low. Confusing variable names. Don't use the following: o Better numbers of buffers. Each 8K page requires up to 16 buffer headers. On my system, this results in 5576 buffers containing [up to] 2854912 bytes of memory. The usual allocation of about 384 buffers only holds 192K of disk if you use it on an fs with a block size of 512. o gdt changes for bdb. o *TGT -> *IDT changes for bdb. o #ifdefed changes for bdb. /usr/src/sys/i386/i386/microtime.s: o Use the correct asm macros. I think asm.h was copied from Mach just for microtime and isn't used now. It certainly doesn't belong in <sys>. Various macros are also duplicated in sys/i386/boot.h and libc/i386/*.h. o Don't switch to and from the IRR; it is guaranteed to be selected (default after ICU init and explicitly selected in isa.c too, and never changed until the old microtime clobbered it). /usr/src/sys/i386/i386/support.s: o Non-essential changes (none related to spls or profiling). o Removed slow loads of %gs again. The LDT support may require not relying on %gs, but loading it is not the way to fix it! Some places (copyin ...) forgot to load it. Loading it clobbers the user %gs. trap() still loads it after certain types of faults so that fuword() etc can rely on it without loading it explicitly. Exception handlers don't restore it. If we want to preserve the user %gs, then the fastest method is to not touch it except for context switches. Comparing with VM_MAXUSER_ADDRESS and branching takes only 2 or 4 cycles on a 486, while loading %gs takes 9 cycles and using it takes another. o Fixed a signed branch to unsigned. /usr/src/sys/i386/i386/swtch.s: o Move spl0() outside of idle loop. o Remove cli/sti from idle loop. sw1 does a cli, and in the unlikely event of an interrupt occurring and whichqs becoming zero, sw1 will just jump back to _idle. o There's no spl0() function in asm any more, so use splz(). o swtch() doesn't need to be superaligned, at least with the new mcounting. o Fixed a signed branch to unsigned. o Removed astoff(). /usr/src/sys/i386/i386/trap.c: o The decentralized extern decls were inconsistent, of course. o Fixed typo MATH_EMULTATE in comments. */ o Removed unused variables. o Old netmask is now impmask; print it instead. Perhaps we should print some of the new masks. o BTW, trap() should not print anything for normal debugger traps. /usr/src/sys/i386/include/asmacros.h: o DON'T APPLY ALL OF THIS DIFF. Just use some of the null macros as necessary. /usr/src/sys/i386/include/cpu.h: o CLKF_BASEPRI() changes since cpl == SWI_AST_MASK is now normal while the kernel is running. o Don't use var++ to set boolean variables. It fails after a mere 4G times :-) and is slower than storing a constant on [3-4]86s. /usr/src/sys/i386/include/cpufunc.h: o DON'T APPLY ALL OF THIS DIFF. You need mainly the include of <machine/ipl.h>. Unfortunately, <machine/ipl.h> is needed by almost everything for the inlines. /usr/src/sys/i386/include/ipl.h: o New file. Defines spl inlines and SWI macros and declares most variables related to hard and soft interrupt masks. /usr/src/sys/i386/isa/icu.h: o Moved definitions to <machine/ipl.h> /usr/src/sys/i386/isa/icu.s: o Software interrupts (SWIs) and delayed hardware interrupts (HWIs) are now handled uniformally, and dispatching them from splx() is more like dispatching them from _doreti. The dispatcher is essentially *(handler[ffs(ipending & ~cpl)](). o More care (not quite enough) is taken to avoid unbounded nesting of interrupts. o The interface to softclock() is changed so that a trap frame is not required. o Fast interrupt handlers are now handled more uniformally. Configuration is still too early (new handlers would require bits in <machine/ipl.h> and functions to vector.s). o splnnn() and splx() are no longer here; they are inline functions (could be macros for other compilers). splz() is the nontrivial part of the old splx(). /usr/src/sys/i386/isa/ipl.h o New file. Supposed to have only bus-dependent stuff. Perhaps the h/w masks should be declared here. /usr/src/sys/i386/isa/isa.c: o DON'T APPLY ALL OF THIS DIFF. You need only things involving *mask and *MASK and comments about them. netmask is now a pure software mask. It works like the softclock mask. /usr/src/sys/i386/isa/vector.s: o Reorganize AUTO_EOI* macros. o Option FAST_INTR_HANDLER_USERS_ES for people who don't trust fastintr handlers. o fastintr handlers need to metamorphose into ordinary interrupt handlers if their SWI bit has become set. Previously, sio had unintended latency for handling output completions and input of SLIP framing characters because this was not done. /usr/src/sys/net/netisr.h: o The machine-dependent stuff is now imported from <machine/ipl.h>. /usr/src/sys/sys/systm.h o DON'T APPLY ALL OF THIS DIFF. You need mainly the different splx() prototype. The spl*() prototypes are duplicated as inlines in <machine/ipl.h> but they need to be duplicated here in case there are no inlines. I sent systm.h and cpufunc.h to Garrett. We agree that spl0 should be replaced by splnone and not the other way around like I've done. /usr/src/sys/kern/kern_clock.c o splsoftclock() now lowers cpl so the direct call to softclock() works as intended. o softclock() interface changed to avoid passing the whole frame (some machines may need another change for profile_tick()). o profiling renamed _profiling to avoid ANSI namespace pollution. (I had to improve the mcount() interface and may as well fix it.) The GUPROF variant doesn't actually reference profiling here, but the 'U' in GUPROF should mean to select the microtimer mcount() and not change the interface.
1994-04-02 07:00:53 +00:00
*
* XXX actually, blocking all ttys during a splimp doesn't matter so much
* with sio because the serial interrupt layer doesn't use tty_imask. Only
* non-serial ttys suffer. It's more stupid that ALL 'net's are blocked
* during spltty.
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
*/
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
#include "sl.h"
#if NSL > 0
New interrupt code from Bruce Evans. In additional to Bruce's attached list of changes, I've made the following additional changes: 1) i386/include/ipl.h renamed to spl.h as the name conflicts with the file of the same name in i386/isa/ipl.h. 2) changed all use of *mask (i.e. netmask, biomask, ttymask, etc) to *_imask (net_imask, etc). 3) changed vestige of splnet use in if_is to splimp. 4) got rid of "impmask" completely (Bruce had gotten rid of netmask), and are now using net_imask instead. 5) dozens of minor cruft to glue in Bruce's changes. These require changes I made to config(8) as well, and thus it must be rebuilt. -DG from Bruce Evans: sio: o No diff is supplied. Remove the define of setsofttty(). I hope that is enough. *.s: o i386/isa/debug.h no longer exists. The event counters became too much trouble to maintain. All function call entry and exception entry counters can be recovered by using profiling kernel (the new profiling supports all entry points; however, it is too slow to leave enabled all the time; it also). Only BDBTRAP() from debug.h is now used. That is moved to exception.s. It might be worth preserving SHOW_BITS() and calling it from _mcount() (if enabled). o T_ASTFLT is now only set just before calling trap(). o All exception handlers set SWI_AST_MASK in cpl as soon as possible after entry and arrange for _doreti to restore it atomically with exiting. It is not possible to set it atomically with entering the kernel, so it must be checked against the user mode bits in the trap frame before committing to using it. There is no place to store the old value of cpl for syscalls or traps, so there are some complications restoring it. Profiling stuff (mostly in *.s): o Changes to kern/subr_mcount.c, gcc and gprof are not supplied yet. o All interesting labels `foo' are renamed `_foo' and all uninteresting labels `_bar' are renamed `bar'. A small change to gprof allows ignoring labels not starting with underscores. o MCOUNT_LABEL() is to provide names for counters for times spent in exception handlers. o FAKE_MCOUNT() is a version of MCOUNT() suitable for exception handlers. Its arg is the pc where the exception occurred. The new mcount() pretends that this was a call from that pc to a suitable MCOUNT_LABEL(). o MEXITCOUNT is to turn off any timer started by MCOUNT(). /usr/src/sys/i386/i386/exception.s: o The non-BDB BPTTRAP() macros were doing a sti even when interrupts were disabled when the trap occurred. The sti (fixed) sti is actually a no-op unless you have my changes to machdep.c that make the debugger trap gates interrupt gates, but fixing that would make the ifdefs messier. ddb seems to be unharmed by both interrupts always disabled and always enabled (I had the branch in the fix back to front for some time :-(). o There is no known pushal bug. o tf_err can be left as garbage for syscalls. /usr/src/sys/i386/i386/locore.s: o Fix and update BDE_DEBUGGER support. o ENTRY(btext) before initialization was dangerous. o Warm boot shot was longer than intended. /usr/src/sys/i386/i386/machdep.c: o DON'T APPLY ALL OF THIS DIFF. It's what I'm using, but may require other changes. Use the following: o Remove aston() and setsoftclock(). Maybe use the following: o No netisr.h. o Spelling fix. o Delay to read the Rebooting message. o Fix for vm system unmapping a reduced area of memory after bounds_check_with_label() reduces the size of a physical i/o for a partition boundary. A similar fix is required in kern_physio.c. o Correct use of __CONCAT. It never worked here for non- ANSI cpp's. Is it time to drop support for non-ANSI? o gdt_segs init. 0xffffffffUL is bogus because ssd_limit is not 32 bits. The replacement may have the same value :-), but is more natural. o physmem was one page too low. Confusing variable names. Don't use the following: o Better numbers of buffers. Each 8K page requires up to 16 buffer headers. On my system, this results in 5576 buffers containing [up to] 2854912 bytes of memory. The usual allocation of about 384 buffers only holds 192K of disk if you use it on an fs with a block size of 512. o gdt changes for bdb. o *TGT -> *IDT changes for bdb. o #ifdefed changes for bdb. /usr/src/sys/i386/i386/microtime.s: o Use the correct asm macros. I think asm.h was copied from Mach just for microtime and isn't used now. It certainly doesn't belong in <sys>. Various macros are also duplicated in sys/i386/boot.h and libc/i386/*.h. o Don't switch to and from the IRR; it is guaranteed to be selected (default after ICU init and explicitly selected in isa.c too, and never changed until the old microtime clobbered it). /usr/src/sys/i386/i386/support.s: o Non-essential changes (none related to spls or profiling). o Removed slow loads of %gs again. The LDT support may require not relying on %gs, but loading it is not the way to fix it! Some places (copyin ...) forgot to load it. Loading it clobbers the user %gs. trap() still loads it after certain types of faults so that fuword() etc can rely on it without loading it explicitly. Exception handlers don't restore it. If we want to preserve the user %gs, then the fastest method is to not touch it except for context switches. Comparing with VM_MAXUSER_ADDRESS and branching takes only 2 or 4 cycles on a 486, while loading %gs takes 9 cycles and using it takes another. o Fixed a signed branch to unsigned. /usr/src/sys/i386/i386/swtch.s: o Move spl0() outside of idle loop. o Remove cli/sti from idle loop. sw1 does a cli, and in the unlikely event of an interrupt occurring and whichqs becoming zero, sw1 will just jump back to _idle. o There's no spl0() function in asm any more, so use splz(). o swtch() doesn't need to be superaligned, at least with the new mcounting. o Fixed a signed branch to unsigned. o Removed astoff(). /usr/src/sys/i386/i386/trap.c: o The decentralized extern decls were inconsistent, of course. o Fixed typo MATH_EMULTATE in comments. */ o Removed unused variables. o Old netmask is now impmask; print it instead. Perhaps we should print some of the new masks. o BTW, trap() should not print anything for normal debugger traps. /usr/src/sys/i386/include/asmacros.h: o DON'T APPLY ALL OF THIS DIFF. Just use some of the null macros as necessary. /usr/src/sys/i386/include/cpu.h: o CLKF_BASEPRI() changes since cpl == SWI_AST_MASK is now normal while the kernel is running. o Don't use var++ to set boolean variables. It fails after a mere 4G times :-) and is slower than storing a constant on [3-4]86s. /usr/src/sys/i386/include/cpufunc.h: o DON'T APPLY ALL OF THIS DIFF. You need mainly the include of <machine/ipl.h>. Unfortunately, <machine/ipl.h> is needed by almost everything for the inlines. /usr/src/sys/i386/include/ipl.h: o New file. Defines spl inlines and SWI macros and declares most variables related to hard and soft interrupt masks. /usr/src/sys/i386/isa/icu.h: o Moved definitions to <machine/ipl.h> /usr/src/sys/i386/isa/icu.s: o Software interrupts (SWIs) and delayed hardware interrupts (HWIs) are now handled uniformally, and dispatching them from splx() is more like dispatching them from _doreti. The dispatcher is essentially *(handler[ffs(ipending & ~cpl)](). o More care (not quite enough) is taken to avoid unbounded nesting of interrupts. o The interface to softclock() is changed so that a trap frame is not required. o Fast interrupt handlers are now handled more uniformally. Configuration is still too early (new handlers would require bits in <machine/ipl.h> and functions to vector.s). o splnnn() and splx() are no longer here; they are inline functions (could be macros for other compilers). splz() is the nontrivial part of the old splx(). /usr/src/sys/i386/isa/ipl.h o New file. Supposed to have only bus-dependent stuff. Perhaps the h/w masks should be declared here. /usr/src/sys/i386/isa/isa.c: o DON'T APPLY ALL OF THIS DIFF. You need only things involving *mask and *MASK and comments about them. netmask is now a pure software mask. It works like the softclock mask. /usr/src/sys/i386/isa/vector.s: o Reorganize AUTO_EOI* macros. o Option FAST_INTR_HANDLER_USERS_ES for people who don't trust fastintr handlers. o fastintr handlers need to metamorphose into ordinary interrupt handlers if their SWI bit has become set. Previously, sio had unintended latency for handling output completions and input of SLIP framing characters because this was not done. /usr/src/sys/net/netisr.h: o The machine-dependent stuff is now imported from <machine/ipl.h>. /usr/src/sys/sys/systm.h o DON'T APPLY ALL OF THIS DIFF. You need mainly the different splx() prototype. The spl*() prototypes are duplicated as inlines in <machine/ipl.h> but they need to be duplicated here in case there are no inlines. I sent systm.h and cpufunc.h to Garrett. We agree that spl0 should be replaced by splnone and not the other way around like I've done. /usr/src/sys/kern/kern_clock.c o splsoftclock() now lowers cpl so the direct call to softclock() works as intended. o softclock() interface changed to avoid passing the whole frame (some machines may need another change for profile_tick()). o profiling renamed _profiling to avoid ANSI namespace pollution. (I had to improve the mcount() interface and may as well fix it.) The GUPROF variant doesn't actually reference profiling here, but the 'U' in GUPROF should mean to select the microtimer mcount() and not change the interface.
1994-04-02 07:00:53 +00:00
net_imask |= tty_imask;
tty_imask = net_imask;
#endif
/* bio_imask |= tty_imask ; can some tty devices use buffers? */
#ifdef DIAGNOSTIC
printf("bio_imask %x tty_imask %x net_imask %x\n",
bio_imask, tty_imask, net_imask);
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
#endif
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
/*
* Finish initializing intr_mask[]. Note that the partly
* constructed masks aren't actually used since we're at splhigh.
* For fully dynamic initialization, register_intr() and
* unregister_intr() will have to adjust the masks for _all_
* interrupts and for tty_imask, etc.
*/
for (dvp = isa_devtab_tty; dvp->id_driver; dvp++)
register_imask(dvp, tty_imask);
for (dvp = isa_devtab_bio; dvp->id_driver; dvp++)
register_imask(dvp, bio_imask);
for (dvp = isa_devtab_net; dvp->id_driver; dvp++)
register_imask(dvp, net_imask);
for (dvp = isa_devtab_null; dvp->id_driver; dvp++)
register_imask(dvp, SWI_CLOCK_MASK);
Remove the alias splnone() for spl0(). It was used only once.
1994-09-20 05:07:32 +00:00
spl0();
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
/*
* Configure an ISA device.
*/
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
static void
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
config_isadev(isdp, mp)
struct isa_device *isdp;
u_int *mp;
{
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
u_int checkbits;
int id_alive;
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
struct isa_driver *dp = isdp->id_driver;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
checkbits = 0;
#ifndef ALLOW_CONFLICT_DRQ
checkbits |= CC_DRQ;
#endif
#ifndef ALLOW_CONFLICT_IOADDR
checkbits |= CC_IOADDR;
#endif
#ifndef ALLOW_CONFLICT_MEMADDR
checkbits |= CC_MEMADDR;
#endif
if (haveseen_isadev(isdp, checkbits))
return;
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
if (isdp->id_maddr) {
isdp->id_maddr -= 0xa0000; /* XXX should be a define */
isdp->id_maddr += atdevbase;
}
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
id_alive = (*dp->probe)(isdp);
if (id_alive) {
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
/*
* Only print the I/O address range if id_alive != -1
* Right now this is a temporary fix just for the new
* NPX code so that if it finds a 486 that can use trap
* 16 it will not report I/O addresses.
* Rod Grimes 04/26/94
*/
printf("%s%d", dp->name, isdp->id_unit);
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
if (id_alive != -1) {
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
printf(" at 0x%x", isdp->id_iobase);
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
if ((isdp->id_iobase + id_alive - 1) !=
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
isdp->id_iobase) {
printf("-0x%x",
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
isdp->id_iobase + id_alive - 1);
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
}
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
if (isdp->id_irq)
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
printf(" irq %d", ffs(isdp->id_irq) - 1);
if (isdp->id_drq != -1)
printf(" drq %d", isdp->id_drq);
if (isdp->id_maddr)
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
printf(" maddr 0x%lx", kvtop(isdp->id_maddr));
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
if (isdp->id_msize)
printf(" msize %d", isdp->id_msize);
if (isdp->id_flags)
printf(" flags 0x%x", isdp->id_flags);
Now prints ``on eisa'' if id_iobase >= 0x1000, and made a slight code cleanup for the other 2 cases of ``on motherboard'' and ``on isa''.
1994-01-22 21:52:04 +00:00
if (isdp->id_iobase) {
if (isdp->id_iobase < 0x100) {
printf(" on motherboard\n");
} else {
Reversed my patch from yesterday. "eisa" if >= 0x1000. pas0 will be in "eisa", even though it isn't.
1994-09-13 17:06:47 +00:00
if (isdp->id_iobase >= 0x1000) {
Now prints ``on eisa'' if id_iobase >= 0x1000, and made a slight code cleanup for the other 2 cases of ``on motherboard'' and ``on isa''.
1994-01-22 21:52:04 +00:00
printf (" on eisa\n");
} else {
printf (" on isa\n");
}
}
}
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
/*
* Check for conflicts again. The driver may have changed
* *dvp. We should weaken the early check since the
* driver may have been able to change *dvp to avoid
* conflicts if given a chance. We already skip the early
* check for IRQs and force a check for IRQs in the next
* group of checks.
*/
checkbits |= CC_IRQ;
if (haveseen_isadev(isdp, checkbits))
return;
isdp->id_alive = id_alive;
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
(*dp->attach)(isdp);
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
if (isdp->id_irq) {
if (mp)
INTRMASK(*mp, isdp->id_irq);
register_intr(ffs(isdp->id_irq) - 1, isdp->id_id,
isdp->id_ri_flags, isdp->id_intr,
mp ? *mp : 0, isdp->id_unit);
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
INTREN(isdp->id_irq);
}
} else {
printf("%s%d not found", dp->name, isdp->id_unit);
if (isdp->id_iobase) {
printf(" at 0x%x", isdp->id_iobase);
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
ALL: Removed patch kit headers and rcsid strings, add $Id$. isa.c: Removed old #ifdef notyet isa_configure code, since it will never be used, and I have done 90% of what it attempted to. Add conflict checking code that searchs back through the devtab's looking for any device that has already been found that may conflict with what we are about to probe. Checks are mode for I/O address, memory address, IRQ, and DRQ. This should stop the screwing up of any device that has alread been found by other device probes. Print out messages when we are not going to probe a device due to a conflict so the user knows WHY something was not found. For example: aha0 not probed due to irq conflict with ahb0 at 11 Now print out a message when a device is not found so the user knows that it was probed for, but could not be found. For example: ed1 not found at 0x320 For devices that have I/O address < 0x100 say that they are on the motherboard, not on isa! The 0x100 magic number is per ISA spec. It may seem funny that pc0 and sc0 report as being on the motherboard, but this is due to the fact that the I/O address used is that of the keyboard controller which IS on the motherboard. We really need to split the keyboard probe from the display probe. It is completly legal to build a pc with out one or the other, or even with out both! npx.c: Return -1 from the probe routine if we are using the Emulator so that the i/o addresses are not printed, this is the same trick used for 486's. Do not print the ``Errors reported via Exception 16'', and ``Errors reported via IRQ 13'' messages any more, since these just lead to more user confusion that anything. It still prints the message ``Error reporting broken, using 387 emulator'' so that the person is aware that there mother board is ill.
1993-10-13 15:59:30 +00:00
printf("\n");
}
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
/*
* Fill in default interrupt table (in case of spuruious interrupt
* during configuration of kernel, setup interrupt control unit
*/
Make the LINT kernel compile with -W -Wreturn-type -Wcomment -Werror, and add same (sans -Werror) to Makefile for future compilations.
1993-11-25 01:38:01 +00:00
void
isa_defaultirq()
{
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
int i;
/* icu vectors */
New interrupt code from Bruce Evans. In additional to Bruce's attached list of changes, I've made the following additional changes: 1) i386/include/ipl.h renamed to spl.h as the name conflicts with the file of the same name in i386/isa/ipl.h. 2) changed all use of *mask (i.e. netmask, biomask, ttymask, etc) to *_imask (net_imask, etc). 3) changed vestige of splnet use in if_is to splimp. 4) got rid of "impmask" completely (Bruce had gotten rid of netmask), and are now using net_imask instead. 5) dozens of minor cruft to glue in Bruce's changes. These require changes I made to config(8) as well, and thus it must be rebuilt. -DG from Bruce Evans: sio: o No diff is supplied. Remove the define of setsofttty(). I hope that is enough. *.s: o i386/isa/debug.h no longer exists. The event counters became too much trouble to maintain. All function call entry and exception entry counters can be recovered by using profiling kernel (the new profiling supports all entry points; however, it is too slow to leave enabled all the time; it also). Only BDBTRAP() from debug.h is now used. That is moved to exception.s. It might be worth preserving SHOW_BITS() and calling it from _mcount() (if enabled). o T_ASTFLT is now only set just before calling trap(). o All exception handlers set SWI_AST_MASK in cpl as soon as possible after entry and arrange for _doreti to restore it atomically with exiting. It is not possible to set it atomically with entering the kernel, so it must be checked against the user mode bits in the trap frame before committing to using it. There is no place to store the old value of cpl for syscalls or traps, so there are some complications restoring it. Profiling stuff (mostly in *.s): o Changes to kern/subr_mcount.c, gcc and gprof are not supplied yet. o All interesting labels `foo' are renamed `_foo' and all uninteresting labels `_bar' are renamed `bar'. A small change to gprof allows ignoring labels not starting with underscores. o MCOUNT_LABEL() is to provide names for counters for times spent in exception handlers. o FAKE_MCOUNT() is a version of MCOUNT() suitable for exception handlers. Its arg is the pc where the exception occurred. The new mcount() pretends that this was a call from that pc to a suitable MCOUNT_LABEL(). o MEXITCOUNT is to turn off any timer started by MCOUNT(). /usr/src/sys/i386/i386/exception.s: o The non-BDB BPTTRAP() macros were doing a sti even when interrupts were disabled when the trap occurred. The sti (fixed) sti is actually a no-op unless you have my changes to machdep.c that make the debugger trap gates interrupt gates, but fixing that would make the ifdefs messier. ddb seems to be unharmed by both interrupts always disabled and always enabled (I had the branch in the fix back to front for some time :-(). o There is no known pushal bug. o tf_err can be left as garbage for syscalls. /usr/src/sys/i386/i386/locore.s: o Fix and update BDE_DEBUGGER support. o ENTRY(btext) before initialization was dangerous. o Warm boot shot was longer than intended. /usr/src/sys/i386/i386/machdep.c: o DON'T APPLY ALL OF THIS DIFF. It's what I'm using, but may require other changes. Use the following: o Remove aston() and setsoftclock(). Maybe use the following: o No netisr.h. o Spelling fix. o Delay to read the Rebooting message. o Fix for vm system unmapping a reduced area of memory after bounds_check_with_label() reduces the size of a physical i/o for a partition boundary. A similar fix is required in kern_physio.c. o Correct use of __CONCAT. It never worked here for non- ANSI cpp's. Is it time to drop support for non-ANSI? o gdt_segs init. 0xffffffffUL is bogus because ssd_limit is not 32 bits. The replacement may have the same value :-), but is more natural. o physmem was one page too low. Confusing variable names. Don't use the following: o Better numbers of buffers. Each 8K page requires up to 16 buffer headers. On my system, this results in 5576 buffers containing [up to] 2854912 bytes of memory. The usual allocation of about 384 buffers only holds 192K of disk if you use it on an fs with a block size of 512. o gdt changes for bdb. o *TGT -> *IDT changes for bdb. o #ifdefed changes for bdb. /usr/src/sys/i386/i386/microtime.s: o Use the correct asm macros. I think asm.h was copied from Mach just for microtime and isn't used now. It certainly doesn't belong in <sys>. Various macros are also duplicated in sys/i386/boot.h and libc/i386/*.h. o Don't switch to and from the IRR; it is guaranteed to be selected (default after ICU init and explicitly selected in isa.c too, and never changed until the old microtime clobbered it). /usr/src/sys/i386/i386/support.s: o Non-essential changes (none related to spls or profiling). o Removed slow loads of %gs again. The LDT support may require not relying on %gs, but loading it is not the way to fix it! Some places (copyin ...) forgot to load it. Loading it clobbers the user %gs. trap() still loads it after certain types of faults so that fuword() etc can rely on it without loading it explicitly. Exception handlers don't restore it. If we want to preserve the user %gs, then the fastest method is to not touch it except for context switches. Comparing with VM_MAXUSER_ADDRESS and branching takes only 2 or 4 cycles on a 486, while loading %gs takes 9 cycles and using it takes another. o Fixed a signed branch to unsigned. /usr/src/sys/i386/i386/swtch.s: o Move spl0() outside of idle loop. o Remove cli/sti from idle loop. sw1 does a cli, and in the unlikely event of an interrupt occurring and whichqs becoming zero, sw1 will just jump back to _idle. o There's no spl0() function in asm any more, so use splz(). o swtch() doesn't need to be superaligned, at least with the new mcounting. o Fixed a signed branch to unsigned. o Removed astoff(). /usr/src/sys/i386/i386/trap.c: o The decentralized extern decls were inconsistent, of course. o Fixed typo MATH_EMULTATE in comments. */ o Removed unused variables. o Old netmask is now impmask; print it instead. Perhaps we should print some of the new masks. o BTW, trap() should not print anything for normal debugger traps. /usr/src/sys/i386/include/asmacros.h: o DON'T APPLY ALL OF THIS DIFF. Just use some of the null macros as necessary. /usr/src/sys/i386/include/cpu.h: o CLKF_BASEPRI() changes since cpl == SWI_AST_MASK is now normal while the kernel is running. o Don't use var++ to set boolean variables. It fails after a mere 4G times :-) and is slower than storing a constant on [3-4]86s. /usr/src/sys/i386/include/cpufunc.h: o DON'T APPLY ALL OF THIS DIFF. You need mainly the include of <machine/ipl.h>. Unfortunately, <machine/ipl.h> is needed by almost everything for the inlines. /usr/src/sys/i386/include/ipl.h: o New file. Defines spl inlines and SWI macros and declares most variables related to hard and soft interrupt masks. /usr/src/sys/i386/isa/icu.h: o Moved definitions to <machine/ipl.h> /usr/src/sys/i386/isa/icu.s: o Software interrupts (SWIs) and delayed hardware interrupts (HWIs) are now handled uniformally, and dispatching them from splx() is more like dispatching them from _doreti. The dispatcher is essentially *(handler[ffs(ipending & ~cpl)](). o More care (not quite enough) is taken to avoid unbounded nesting of interrupts. o The interface to softclock() is changed so that a trap frame is not required. o Fast interrupt handlers are now handled more uniformally. Configuration is still too early (new handlers would require bits in <machine/ipl.h> and functions to vector.s). o splnnn() and splx() are no longer here; they are inline functions (could be macros for other compilers). splz() is the nontrivial part of the old splx(). /usr/src/sys/i386/isa/ipl.h o New file. Supposed to have only bus-dependent stuff. Perhaps the h/w masks should be declared here. /usr/src/sys/i386/isa/isa.c: o DON'T APPLY ALL OF THIS DIFF. You need only things involving *mask and *MASK and comments about them. netmask is now a pure software mask. It works like the softclock mask. /usr/src/sys/i386/isa/vector.s: o Reorganize AUTO_EOI* macros. o Option FAST_INTR_HANDLER_USERS_ES for people who don't trust fastintr handlers. o fastintr handlers need to metamorphose into ordinary interrupt handlers if their SWI bit has become set. Previously, sio had unintended latency for handling output completions and input of SLIP framing characters because this was not done. /usr/src/sys/net/netisr.h: o The machine-dependent stuff is now imported from <machine/ipl.h>. /usr/src/sys/sys/systm.h o DON'T APPLY ALL OF THIS DIFF. You need mainly the different splx() prototype. The spl*() prototypes are duplicated as inlines in <machine/ipl.h> but they need to be duplicated here in case there are no inlines. I sent systm.h and cpufunc.h to Garrett. We agree that spl0 should be replaced by splnone and not the other way around like I've done. /usr/src/sys/kern/kern_clock.c o splsoftclock() now lowers cpl so the direct call to softclock() works as intended. o softclock() interface changed to avoid passing the whole frame (some machines may need another change for profile_tick()). o profiling renamed _profiling to avoid ANSI namespace pollution. (I had to improve the mcount() interface and may as well fix it.) The GUPROF variant doesn't actually reference profiling here, but the 'U' in GUPROF should mean to select the microtimer mcount() and not change the interface.
1994-04-02 07:00:53 +00:00
for (i = 0; i < ICU_LEN; i++)
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
unregister_intr(i, (inthand2_t *)NULL);
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
/* initialize 8259's */
outb(IO_ICU1, 0x11); /* reset; program device, four bytes */
outb(IO_ICU1+1, NRSVIDT); /* starting at this vector index */
outb(IO_ICU1+1, 1<<2); /* slave on line 2 */
#ifdef AUTO_EOI_1
outb(IO_ICU1+1, 2 | 1); /* auto EOI, 8086 mode */
#else
outb(IO_ICU1+1, 1); /* 8086 mode */
#endif
outb(IO_ICU1+1, 0xff); /* leave interrupts masked */
outb(IO_ICU1, 0x0a); /* default to IRR on read */
outb(IO_ICU1, 0xc0 | (3 - 1)); /* pri order 3-7, 0-2 (com2 first) */
outb(IO_ICU2, 0x11); /* reset; program device, four bytes */
outb(IO_ICU2+1, NRSVIDT+8); /* staring at this vector index */
outb(IO_ICU2+1,2); /* my slave id is 2 */
#ifdef AUTO_EOI_2
outb(IO_ICU2+1, 2 | 1); /* auto EOI, 8086 mode */
#else
outb(IO_ICU2+1,1); /* 8086 mode */
#endif
outb(IO_ICU2+1, 0xff); /* leave interrupts masked */
outb(IO_ICU2, 0x0a); /* default to IRR on read */
}
/* region of physical memory known to be contiguous */
vm_offset_t isaphysmem;
static caddr_t dma_bounce[8]; /* XXX */
static char bounced[8]; /* XXX */
#define MAXDMASZ 512 /* XXX */
/* high byte of address is stored in this port for i-th dma channel */
static short dmapageport[8] =
{ 0x87, 0x83, 0x81, 0x82, 0x8f, 0x8b, 0x89, 0x8a };
/*
* isa_dmacascade(): program 8237 DMA controller channel to accept
* external dma control by a board.
*/
void isa_dmacascade(unsigned chan)
{
if (chan > 7)
panic("isa_dmacascade: impossible request");
/* set dma channel mode, and set dma channel mode */
if ((chan & 4) == 0) {
outb(DMA1_MODE, DMA37MD_CASCADE | chan);
outb(DMA1_SMSK, chan);
} else {
outb(DMA2_MODE, DMA37MD_CASCADE | (chan & 3));
outb(DMA2_SMSK, chan & 3);
}
}
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
static int
isa_dmarangecheck(caddr_t va, unsigned length, unsigned chan);
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
/*
* isa_dmastart(): program 8237 DMA controller channel, avoid page alignment
* problems by using a bounce buffer.
*/
void isa_dmastart(int flags, caddr_t addr, unsigned nbytes, unsigned chan)
{ vm_offset_t phys;
int waport;
caddr_t newaddr;
if ( chan > 7
|| (chan < 4 && nbytes > (1<<16))
|| (chan >= 4 && (nbytes > (1<<17) || (u_int)addr & 1)))
panic("isa_dmastart: impossible request");
if (isa_dmarangecheck(addr, nbytes, chan)) {
if (dma_bounce[chan] == 0)
dma_bounce[chan] =
/*(caddr_t)malloc(MAXDMASZ, M_TEMP, M_WAITOK);*/
(caddr_t) isaphysmem + NBPG*chan;
bounced[chan] = 1;
newaddr = dma_bounce[chan];
*(int *) newaddr = 0; /* XXX */
/* copy bounce buffer on write */
if (!(flags & B_READ))
bcopy(addr, newaddr, nbytes);
addr = newaddr;
}
/* translate to physical */
phys = pmap_extract(pmap_kernel(), (vm_offset_t)addr);
if ((chan & 4) == 0) {
/*
* Program one of DMA channels 0..3. These are
* byte mode channels.
*/
/* set dma channel mode, and reset address ff */
if (flags & B_READ)
outb(DMA1_MODE, DMA37MD_SINGLE|DMA37MD_WRITE|chan);
else
outb(DMA1_MODE, DMA37MD_SINGLE|DMA37MD_READ|chan);
outb(DMA1_FFC, 0);
/* send start address */
waport = DMA1_CHN(chan);
outb(waport, phys);
outb(waport, phys>>8);
outb(dmapageport[chan], phys>>16);
/* send count */
outb(waport + 1, --nbytes);
outb(waport + 1, nbytes>>8);
/* unmask channel */
outb(DMA1_SMSK, chan);
} else {
/*
* Program one of DMA channels 4..7. These are
* word mode channels.
*/
/* set dma channel mode, and reset address ff */
if (flags & B_READ)
outb(DMA2_MODE, DMA37MD_SINGLE|DMA37MD_WRITE|(chan&3));
else
outb(DMA2_MODE, DMA37MD_SINGLE|DMA37MD_READ|(chan&3));
outb(DMA2_FFC, 0);
/* send start address */
waport = DMA2_CHN(chan - 4);
outb(waport, phys>>1);
outb(waport, phys>>9);
outb(dmapageport[chan], phys>>16);
/* send count */
nbytes >>= 1;
outb(waport + 2, --nbytes);
outb(waport + 2, nbytes>>8);
/* unmask channel */
outb(DMA2_SMSK, chan & 3);
}
}
void isa_dmadone(int flags, caddr_t addr, int nbytes, int chan)
{
/* copy bounce buffer on read */
/*if ((flags & (B_PHYS|B_READ)) == (B_PHYS|B_READ))*/
if (bounced[chan]) {
bcopy(dma_bounce[chan], addr, nbytes);
bounced[chan] = 0;
}
}
/*
* Check for problems with the address range of a DMA transfer
* (non-contiguous physical pages, outside of bus address space,
* crossing DMA page boundaries).
* Return true if special handling needed.
*/
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
static int
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
isa_dmarangecheck(caddr_t va, unsigned length, unsigned chan) {
vm_offset_t phys, priorpage = 0, endva;
u_int dma_pgmsk = (chan & 4) ? ~(128*1024-1) : ~(64*1024-1);
endva = (vm_offset_t)round_page(va + length);
for (; va < (caddr_t) endva ; va += NBPG) {
phys = trunc_page(pmap_extract(pmap_kernel(), (vm_offset_t)va));
#define ISARAM_END RAM_END
if (phys == 0)
panic("isa_dmacheck: no physical page present");
Change from Bruce: isa_dmarangecheck() is off by one error. > ISARAM_END should be >= ISARAM_END. Only the first page above 16M was mishandled.
1994-04-02 20:43:25 +00:00
if (phys >= ISARAM_END)
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
return (1);
if (priorpage) {
if (priorpage + NBPG != phys)
return (1);
/* check if crossing a DMA page boundary */
if (((u_int)priorpage ^ (u_int)phys) & dma_pgmsk)
return (1);
}
priorpage = phys;
}
return (0);
}
/* head of queue waiting for physmem to become available */
struct buf isa_physmemq;
/* blocked waiting for resource to become free for exclusive use */
static isaphysmemflag;
/* if waited for and call requested when free (B_CALL) */
static void (*isaphysmemunblock)(); /* needs to be a list */
/*
* Allocate contiguous physical memory for transfer, returning
* a *virtual* address to region. May block waiting for resource.
* (assumed to be called at splbio())
*/
caddr_t
isa_allocphysmem(caddr_t va, unsigned length, void (*func)()) {
isaphysmemunblock = func;
while (isaphysmemflag & B_BUSY) {
isaphysmemflag |= B_WANTED;
Make the LINT kernel compile with -W -Wreturn-type -Wcomment -Werror, and add same (sans -Werror) to Makefile for future compilations.
1993-11-25 01:38:01 +00:00
tsleep((caddr_t)&isaphysmemflag, PRIBIO, "isaphys", 0);
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
isaphysmemflag |= B_BUSY;
return((caddr_t)isaphysmem);
}
/*
* Free contiguous physical memory used for transfer.
* (assumed to be called at splbio())
*/
void
isa_freephysmem(caddr_t va, unsigned length) {
isaphysmemflag &= ~B_BUSY;
if (isaphysmemflag & B_WANTED) {
isaphysmemflag &= B_WANTED;
Make the LINT kernel compile with -W -Wreturn-type -Wcomment -Werror, and add same (sans -Werror) to Makefile for future compilations.
1993-11-25 01:38:01 +00:00
wakeup((caddr_t)&isaphysmemflag);
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
if (isaphysmemunblock)
(*isaphysmemunblock)();
}
}
Handle NMI's in accordance with data in van Gilluwe book.
1994-08-10 04:39:52 +00:00
#define NMI_PARITY (1 << 7)
#define NMI_IOCHAN (1 << 6)
#define ENMI_WATCHDOG (1 << 7)
#define ENMI_BUSTIMER (1 << 6)
#define ENMI_IOSTATUS (1 << 5)
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
/*
* Handle a NMI, possibly a machine check.
* return true to panic system, false to ignore.
*/
Make the LINT kernel compile with -W -Wreturn-type -Wcomment -Werror, and add same (sans -Werror) to Makefile for future compilations.
1993-11-25 01:38:01 +00:00
int
isa_nmi(cd)
int cd;
{
Handle NMI's in accordance with data in van Gilluwe book.
1994-08-10 04:39:52 +00:00
int isa_port = inb(0x61);
int eisa_port = inb(0x461);
if(isa_port & NMI_PARITY) {
panic("RAM parity error, likely hardware failure.");
} else if(isa_port & NMI_IOCHAN) {
panic("I/O channel check, likely hardware failure.");
} else if(eisa_port & ENMI_WATCHDOG) {
panic("EISA watchdog timer expired, likely hardware failure.");
} else if(eisa_port & ENMI_BUSTIMER) {
panic("EISA bus timeout, likely hardware failure.");
} else if(eisa_port & ENMI_IOSTATUS) {
panic("EISA I/O port status error.");
} else {
printf("\nNMI ISA %x, EISA %x\n", isa_port, eisa_port);
return(0);
}
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
/*
* Caught a stray interrupt, notify
*/
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
static void
Make the LINT kernel compile with -W -Wreturn-type -Wcomment -Werror, and add same (sans -Werror) to Makefile for future compilations.
1993-11-25 01:38:01 +00:00
isa_strayintr(d)
int d;
{
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
/* DON'T BOTHER FOR NOW! */
/* for some reason, we get bursts of intr #7, even if not enabled! */
/*
* Well the reason you got bursts of intr #7 is because someone
* raised an interrupt line and dropped it before the 8259 could
* prioritize it. This is documented in the intel data book. This
* means you have BAD hardware! I have changed this so that only
* the first 5 get logged, then it quits logging them, and puts
* out a special message. rgrimes 3/25/1993
*/
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
/*
* XXX TODO print a different message for #7 if it is for a
* glitch. Glitches can be distinguished from real #7's by
* testing that the in-service bit is _not_ set. The test
* must be done before sending an EOI so it can't be done if
* we are using AUTO_EOI_1.
*/
if (intrcnt[NR_DEVICES + d] <= 5)
log(LOG_ERR, "stray irq %d\n", d);
if (intrcnt[NR_DEVICES + d] == 5)
log(LOG_CRIT,
"too many stray irq %d's; not logging any more\n", d);
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
}
/*
* find an ISA device in a given isa_devtab_* table, given
* the table to search, the expected id_driver entry, and the unit number.
*
* this function is defined in isa_device.h, and this location is debatable;
* i put it there because it's useless w/o, and directly operates on
* the other stuff in that file.
*
*/
struct isa_device *find_isadev(table, driverp, unit)
struct isa_device *table;
struct isa_driver *driverp;
int unit;
{
if (driverp == NULL) /* sanity check */
return NULL;
while ((table->id_driver != driverp) || (table->id_unit != unit)) {
if (table->id_driver == 0)
return NULL;
table++;
}
return table;
}
/*
* Return nonzero if a (masked) irq is pending for a given device.
*/
int
isa_irq_pending(dvp)
struct isa_device *dvp;
{
unsigned id_irq;
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
id_irq = dvp->id_irq;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
if (id_irq & 0xff)
return (inb(IO_ICU1) & id_irq);
return (inb(IO_ICU2) & (id_irq >> 8));
}
Bruce Evans' dynamic interrupt support. /usr/src/sys/i386/isa/clock.c: o Garrett's statclock changes. o Wire xxxintr, not Vclk. o Wire using register_intr(), not setidt(). /usr/src/sys/i386/isa/icu.s: o Garrett's statclock changes. o Removed unused variable high_imask. o Fake int 8 for rtc as well as int 0 for clk. Required for kernel profiling with statclock, harmless otherwise. /usr/src/sys/i386/isa/isa.c: o Allow isdp->id_irq and other things in *isdp to be changed by probes. Changing interrupts later requires direct calls to register_intr() and unregister_intr() and more care. ALLOW_CONFLICT_* is brought over from 1.1.5, except ALLOW_CONFLICT_IRQ is not supported. IRQ conflict checking is delayed until after probing so that drivers can change the IRQ to a free one; real conflicts require more cooperation between drivers to handle. o Too many details to list. o This file requires splitting and a lot more work. /usr/src/sys/i386/isa/isa_device.h: o Declare more things more completely. /usr/src/sys/i386/isa/sio.c: o Prepare to register interrupt handlers as fast. /usr/src/sys/i386/isa/vector.s: o Generate entry code for 16 fast interrupt handlers and 16 normal interrupt handlers. Changed some constants to variables: # $unit is now intr_unit[intr]. Type is int. Someday it should be a cookie suitable for the handler (e.g., a struct com_s for sio). # $handler is now intr_handler[intr]. # intrcnt_actv[id_num] is now *intr_countp[intr]. The indirection is required to get a contiguous range of counters for vmstat and so that the drivers depend more in the driver than on the interrupt number (drivers could take turns using an interrupt and the counts would remain correct). There is a separate counter for each device and for each stray interrupt. In 1.1.5, stray interrupt 7 clobbers the count for device 7 or something worse if there is no device 7 :-(. # mask is now intr_mask[intr] (was already indirect). o Entry points are now _XintrI and _XfastintrI (I = intr = 0-15), not _VdevU (U = unit). o Removed BUILD_VECTORS stuff. There's a trace of it left for the string table for vmstat but config now generates the string in one piece because nothing more is required. o Removed old handling of stray interrupts and older comments about it. Submitted by: Bruce Evans
1994-08-18 05:09:36 +00:00
int
register_intr(intr, device_id, flags, handler, mask, unit)
int intr;
int device_id;
u_int flags;
inthand2_t *handler;
u_int mask;
int unit;
{
char *cp;
u_long ef;
int id;
if ((u_int)intr >= ICU_LEN || intr == 2
|| (u_int)device_id >= NR_DEVICES)
return (EINVAL);
if (intr_handler[intr] != isa_strayintr)
return (EBUSY);
ef = read_eflags();
disable_intr();
intr_countp[intr] = &intrcnt[device_id];
intr_handler[intr] = handler;
intr_mask[intr] = mask | (1 << intr);
intr_unit[intr] = unit;
setidt(ICU_OFFSET + intr,
flags & RI_FAST ? fastintr[intr] : slowintr[intr],
SDT_SYS386IGT, SEL_KPL);
write_eflags(ef);
for (cp = intrnames, id = 0; id <= device_id; id++)
while (*cp++ != '\0')
;
if (cp > eintrnames)
return (0);
if (intr < 10) {
cp[-3] = intr + '0';
cp[-2] = ' ';
} else {
cp[-3] = '1';
cp[-2] = intr - 10 + '0';
}
return (0);
}
static void
register_imask(dvp, mask)
struct isa_device *dvp;
u_int mask;
{
if (dvp->id_alive && dvp->id_irq) {
int intr;
intr = ffs(dvp->id_irq) - 1;
intr_mask[intr] = mask | (1 <<intr);
}
}
int
unregister_intr(intr, handler)
int intr;
inthand2_t *handler;
{
u_long ef;
if ((u_int)intr >= ICU_LEN || handler != intr_handler[intr])
return (EINVAL);
ef = read_eflags();
disable_intr();
intr_countp[intr] = &intrcnt[NR_DEVICES + intr];
intr_handler[intr] = isa_strayintr;
intr_mask[intr] = HWI_MASK | SWI_MASK;
intr_unit[intr] = intr;
setidt(ICU_OFFSET + intr, slowintr[intr], SDT_SYS386IGT, SEL_KPL);
write_eflags(ef);
return (0);
}
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