Author: imp
Date: Wed Feb 15 23:04:25 2017
New Revision: 313783
URL: https://svnweb.freebsd.org/changeset/base/313783
Log:
Remove Micro Channel Architecture support. Of the commonly available
machines, only a few 486 machines that used it, and those haven't had
enough memory to run FreeBSD for quite some time (often limited to
16MB).
Not to be confused with the Machine Check Architecture, which is still
very much alive and used (and untouched by this commit).
No Objection From: arch@
Deleted:
head/sys/dev/aha/aha_mca.c
head/sys/dev/buslogic/bt_mca.c
head/sys/dev/ep/if_ep_mca.c
head/sys/dev/mca/
head/sys/i386/bios/mca_machdep.c
head/sys/i386/bios/mca_machdep.h
head/tools/kerneldoc/subsys/Doxyfile-dev_mca
Modified:
head/share/man/man4/aha.4
head/share/man/man4/le.4
head/share/man/man4/man4.i386/ep.4
head/sys/conf/files
head/sys/conf/files.i386
head/sys/conf/options
head/sys/i386/conf/NOTES
head/sys/x86/isa/atpic.c
head/sys/x86/isa/clock.c
head/sys/x86/isa/nmi.c
head/sys/x86/x86/legacy.c
Modified: head/share/man/man4/aha.4
==============================================================================
--- head/share/man/man4/aha.4 Wed Feb 15 20:17:55 2017 (r313782)
+++ head/share/man/man4/aha.4 Wed Feb 15 23:04:25 2017 (r313783)
@@ -74,10 +74,6 @@ locations and attaches to the first unat
The possible
port addresses for this card are 0x330, 0x334, 0x230, 0x234, 0x130, and
0x134.
-.Pp
-The AHA-1640 is an MCA bus card.
-Since the MCA bus is a self-identifying bus, no setting of hints is
-required.
.Sh HARDWARE
The
.Nm
Modified: head/share/man/man4/le.4
==============================================================================
--- head/share/man/man4/le.4 Wed Feb 15 20:17:55 2017 (r313782)
+++ head/share/man/man4/le.4 Wed Feb 15 23:04:25 2017 (r313783)
@@ -204,19 +204,6 @@ bus Ethernet adapters.
.\" .It
.\" .Tn DEC DE422
.\" .El
-.\" .Ss MCA
-.\" The
-.\" .Tn MCA
-.\" bus Ethernet cards supported by the
-.\" .Nm
-.\" driver are:
-.\" .Pp
-.\" .Bl -bullet -compact
-.\" .It
-.\" .Tn SKNET Personal MC2
-.\" .It
-.\" .Tn SKNET MC2+
-.\" .El
.Ss PCI
The
.Tn PCI
Modified: head/share/man/man4/man4.i386/ep.4
==============================================================================
--- head/share/man/man4/man4.i386/ep.4 Wed Feb 15 20:17:55 2017
(r313782)
+++ head/share/man/man4/man4.i386/ep.4 Wed Feb 15 23:04:25 2017
(r313783)
@@ -95,8 +95,6 @@ driver supports Ethernet adapters based
.It
3Com 3C509B-TP, 3C509B-BNC, 3C509B-Combo, 3C509B-TPO, 3C509B-TPC ISA
.It
-3Com 3C529, 3C529-TP MCA
-.It
3Com 3C562/3C563 PCMCIA
.It
3Com 3C574, 3C574TX, 3C574-TX, 3CCFE574BT, 3CXFE574BT, 3C3FE574BT PCMCIA
Modified: head/sys/conf/files
==============================================================================
--- head/sys/conf/files Wed Feb 15 20:17:55 2017 (r313782)
+++ head/sys/conf/files Wed Feb 15 23:04:25 2017 (r313783)
@@ -694,7 +694,6 @@ dev/agp/agp.c optional agp pci
dev/agp/agp_if.m optional agp pci
dev/aha/aha.c optional aha
dev/aha/aha_isa.c optional aha isa
-dev/aha/aha_mca.c optional aha mca
dev/ahb/ahb.c optional ahb eisa
dev/ahci/ahci.c optional ahci
dev/ahci/ahciem.c optional ahci
@@ -1265,7 +1264,6 @@ dev/bnxt/if_bnxt.c optional bnxt iflib
dev/buslogic/bt.c optional bt
dev/buslogic/bt_eisa.c optional bt eisa
dev/buslogic/bt_isa.c optional bt isa
-dev/buslogic/bt_mca.c optional bt mca
dev/buslogic/bt_pci.c optional bt pci
dev/bwi/bwimac.c optional bwi
dev/bwi/bwiphy.c optional bwi
@@ -1609,7 +1607,6 @@ dev/en/midway.c optional en
dev/ep/if_ep.c optional ep
dev/ep/if_ep_eisa.c optional ep eisa
dev/ep/if_ep_isa.c optional ep isa
-dev/ep/if_ep_mca.c optional ep mca
dev/ep/if_ep_pccard.c optional ep pccard
dev/esp/esp_pci.c optional esp pci
dev/esp/ncr53c9x.c optional esp
@@ -2176,7 +2173,6 @@ dev/malo/if_malo.c optional malo
dev/malo/if_malohal.c optional malo
dev/malo/if_malo_pci.c optional malo pci
dev/mc146818/mc146818.c optional mc146818
-dev/mca/mca_bus.c optional mca
dev/md/md.c optional md
dev/mdio/mdio_if.m optional miiproxy | mdio
dev/mdio/mdio.c optional miiproxy | mdio
Modified: head/sys/conf/files.i386
==============================================================================
--- head/sys/conf/files.i386 Wed Feb 15 20:17:55 2017 (r313782)
+++ head/sys/conf/files.i386 Wed Feb 15 23:04:25 2017 (r313783)
@@ -474,7 +474,6 @@ acpi_wakedata.h optional acpi
\
clean "acpi_wakedata.h"
#
i386/bios/apm.c optional apm
-i386/bios/mca_machdep.c optional mca
i386/bios/smapi.c optional smapi
i386/bios/smapi_bios.S optional smapi
i386/cloudabi32/cloudabi32_sysvec.c optional compat_cloudabi32
Modified: head/sys/conf/options
==============================================================================
--- head/sys/conf/options Wed Feb 15 20:17:55 2017 (r313782)
+++ head/sys/conf/options Wed Feb 15 23:04:25 2017 (r313783)
@@ -723,7 +723,6 @@ ISAPNP opt_isa.h
# various 'device presence' options.
DEV_BPF opt_bpf.h
DEV_CARP opt_carp.h
-DEV_MCA opt_mca.h
DEV_NETMAP opt_global.h
DEV_PCI opt_pci.h
DEV_PF opt_pf.h
Modified: head/sys/i386/conf/NOTES
==============================================================================
--- head/sys/i386/conf/NOTES Wed Feb 15 20:17:55 2017 (r313782)
+++ head/sys/i386/conf/NOTES Wed Feb 15 23:04:25 2017 (r313783)
@@ -353,15 +353,6 @@ device eisa
options EISA_SLOTS=12
#
-# MCA bus:
-#
-# The MCA bus device is `mca'. It provides auto-detection and
-# configuration support for all devices on the MCA bus.
-# No hints are required for MCA.
-
-device mca
-
-#
# AGP GART support
device agp
Modified: head/sys/x86/isa/atpic.c
==============================================================================
--- head/sys/x86/isa/atpic.c Wed Feb 15 20:17:55 2017 (r313782)
+++ head/sys/x86/isa/atpic.c Wed Feb 15 23:04:25 2017 (r313783)
@@ -33,7 +33,6 @@ __FBSDID("$FreeBSD$");
#include "opt_auto_eoi.h"
#include "opt_isa.h"
-#include "opt_mca.h"
#include <sys/param.h>
#include <sys/systm.h>
@@ -54,9 +53,6 @@ __FBSDID("$FreeBSD$");
#include <x86/isa/icu.h>
#include <isa/isareg.h>
#include <isa/isavar.h>
-#ifdef DEV_MCA
-#include <i386/bios/mca_machdep.h>
-#endif
#ifdef __amd64__
#define SDT_ATPIC SDT_SYSIGT
@@ -356,13 +352,7 @@ i8259_init(struct atpic *pic, int slave)
/* Reset the PIC and program with next four bytes. */
spinlock_enter();
-#ifdef DEV_MCA
- /* MCA uses level triggered interrupts. */
- if (MCA_system)
- outb(pic->at_ioaddr, ICW1_RESET | ICW1_IC4 | ICW1_LTIM);
- else
-#endif
- outb(pic->at_ioaddr, ICW1_RESET | ICW1_IC4);
+ outb(pic->at_ioaddr, ICW1_RESET | ICW1_IC4);
imr_addr = pic->at_ioaddr + ICU_IMR_OFFSET;
/* Start vector. */
@@ -419,14 +409,6 @@ atpic_startup(void)
ai->at_irq, ai->at_intr, SDT_ATPIC, SEL_KPL, GSEL_ATPIC);
}
-#ifdef DEV_MCA
- /* For MCA systems, all interrupts are level triggered. */
- if (MCA_system)
- for (i = 0, ai = atintrs; i < NUM_ISA_IRQS; i++, ai++)
- ai->at_trigger = INTR_TRIGGER_LEVEL;
- else
-#endif
-
/*
* Look for an ELCR. If we find one, update the trigger modes.
* If we don't find one, assume that IRQs 0, 1, 2, and 13 are
Modified: head/sys/x86/isa/clock.c
==============================================================================
--- head/sys/x86/isa/clock.c Wed Feb 15 20:17:55 2017 (r313782)
+++ head/sys/x86/isa/clock.c Wed Feb 15 23:04:25 2017 (r313783)
@@ -42,7 +42,6 @@ __FBSDID("$FreeBSD$");
#include "opt_clock.h"
#include "opt_isa.h"
-#include "opt_mca.h"
#include <sys/param.h>
#include <sys/systm.h>
@@ -73,10 +72,6 @@ __FBSDID("$FreeBSD$");
#include <isa/isavar.h>
#endif
-#ifdef DEV_MCA
-#include <i386/bios/mca_machdep.h>
-#endif
-
int clkintr_pending;
#ifndef TIMER_FREQ
#define TIMER_FREQ 1193182
@@ -153,11 +148,6 @@ clkintr(void *arg)
if (sc->et.et_active && sc->mode != MODE_STOP)
sc->et.et_event_cb(&sc->et, sc->et.et_arg);
-#ifdef DEV_MCA
- /* Reset clock interrupt by asserting bit 7 of port 0x61 */
- if (MCA_system)
- outb(0x61, inb(0x61) | 0x80);
-#endif
return (FILTER_HANDLED);
}
Modified: head/sys/x86/isa/nmi.c
==============================================================================
--- head/sys/x86/isa/nmi.c Wed Feb 15 20:17:55 2017 (r313782)
+++ head/sys/x86/isa/nmi.c Wed Feb 15 23:04:25 2017 (r313783)
@@ -35,18 +35,12 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
-#include "opt_mca.h"
-
#include <sys/types.h>
#include <sys/syslog.h>
#include <sys/systm.h>
#include <machine/md_var.h>
-#ifdef DEV_MCA
-#include <i386/bios/mca_machdep.h>
-#endif
-
#define NMI_PARITY (1 << 7)
#define NMI_IOCHAN (1 << 6)
#define ENMI_WATCHDOG (1 << 7)
@@ -65,10 +59,6 @@ isa_nmi(int cd)
int eisa_port = inb(0x461);
log(LOG_CRIT, "NMI ISA %x, EISA %x\n", isa_port, eisa_port);
-#ifdef DEV_MCA
- if (MCA_system && mca_bus_nmi())
- return(0);
-#endif
if (isa_port & NMI_PARITY) {
log(LOG_CRIT, "RAM parity error, likely hardware failure.");
Modified: head/sys/x86/x86/legacy.c
==============================================================================
--- head/sys/x86/x86/legacy.c Wed Feb 15 20:17:55 2017 (r313782)
+++ head/sys/x86/x86/legacy.c Wed Feb 15 23:04:25 2017 (r313783)
@@ -29,7 +29,6 @@
#ifdef __i386__
#include "opt_eisa.h"
-#include "opt_mca.h"
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
@@ -51,10 +50,6 @@ __FBSDID("$FreeBSD$");
#include <sys/rman.h>
#include <sys/smp.h>
-#ifdef DEV_MCA
-#include <i386/bios/mca_machdep.h>
-#endif
-
#include <machine/clock.h>
#include <machine/resource.h>
#include <x86/legacyvar.h>
@@ -144,14 +139,6 @@ legacy_attach(device_t dev)
device_probe_and_attach(child);
}
#endif
-#ifdef DEV_MCA
- if (MCA_system && !devclass_get_device(devclass_find("mca"), 0)) {
- child = BUS_ADD_CHILD(dev, 0, "mca", 0);
- if (child == 0)
- panic("legacy_probe mca");
- device_probe_and_attach(child);
- }
-#endif
if (!devclass_get_device(devclass_find("isa"), 0)) {
child = BUS_ADD_CHILD(dev, 0, "isa", 0);
if (child == NULL)
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