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-rw-r--r--arch/x86/Kconfig10
-rw-r--r--arch/x86/include/asm/mca.h43
-rw-r--r--arch/x86/include/asm/mca_dma.h201
-rw-r--r--arch/x86/include/asm/mpspec.h2
-rw-r--r--arch/x86/include/asm/mpspec_def.h3
-rw-r--r--arch/x86/kernel/Makefile1
-rw-r--r--arch/x86/kernel/acpi/boot.c2
-rw-r--r--arch/x86/kernel/apic/io_apic.c17
-rw-r--r--arch/x86/kernel/mca_32.c476
-rw-r--r--arch/x86/kernel/mpparse.c11
-rw-r--r--arch/x86/kernel/nmi.c12
-rw-r--r--arch/x86/kernel/setup.c8
-rw-r--r--arch/x86/kernel/time.c6
-rw-r--r--arch/x86/kernel/traps.c4
14 files changed, 9 insertions, 787 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4d37072c498a..d6168994e115 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2037,16 +2037,6 @@ config EISA
2037 2037
2038source "drivers/eisa/Kconfig" 2038source "drivers/eisa/Kconfig"
2039 2039
2040config MCA
2041 bool "MCA support"
2042 ---help---
2043 MicroChannel Architecture is found in some IBM PS/2 machines and
2044 laptops. It is a bus system similar to PCI or ISA. See
2045 <file:Documentation/mca.txt> (and especially the web page given
2046 there) before attempting to build an MCA bus kernel.
2047
2048source "drivers/mca/Kconfig"
2049
2050config SCx200 2040config SCx200
2051 tristate "NatSemi SCx200 support" 2041 tristate "NatSemi SCx200 support"
2052 ---help--- 2042 ---help---
diff --git a/arch/x86/include/asm/mca.h b/arch/x86/include/asm/mca.h
deleted file mode 100644
index eedbb6cc1efb..000000000000
--- a/arch/x86/include/asm/mca.h
+++ /dev/null
@@ -1,43 +0,0 @@
1/* -*- mode: c; c-basic-offset: 8 -*- */
2
3/* Platform specific MCA defines */
4#ifndef _ASM_X86_MCA_H
5#define _ASM_X86_MCA_H
6
7/* Maximal number of MCA slots - actually, some machines have less, but
8 * they all have sufficient number of POS registers to cover 8.
9 */
10#define MCA_MAX_SLOT_NR 8
11
12/* Most machines have only one MCA bus. The only multiple bus machines
13 * I know have at most two */
14#define MAX_MCA_BUSSES 2
15
16#define MCA_PRIMARY_BUS 0
17#define MCA_SECONDARY_BUS 1
18
19/* Dummy slot numbers on primary MCA for integrated functions */
20#define MCA_INTEGSCSI (MCA_MAX_SLOT_NR)
21#define MCA_INTEGVIDEO (MCA_MAX_SLOT_NR+1)
22#define MCA_MOTHERBOARD (MCA_MAX_SLOT_NR+2)
23
24/* Dummy POS values for integrated functions */
25#define MCA_DUMMY_POS_START 0x10000
26#define MCA_INTEGSCSI_POS (MCA_DUMMY_POS_START+1)
27#define MCA_INTEGVIDEO_POS (MCA_DUMMY_POS_START+2)
28#define MCA_MOTHERBOARD_POS (MCA_DUMMY_POS_START+3)
29
30/* MCA registers */
31
32#define MCA_MOTHERBOARD_SETUP_REG 0x94
33#define MCA_ADAPTER_SETUP_REG 0x96
34#define MCA_POS_REG(n) (0x100+(n))
35
36#define MCA_ENABLED 0x01 /* POS 2, set if adapter enabled */
37
38/* Max number of adapters, including both slots and various integrated
39 * things.
40 */
41#define MCA_NUMADAPTERS (MCA_MAX_SLOT_NR+3)
42
43#endif /* _ASM_X86_MCA_H */
diff --git a/arch/x86/include/asm/mca_dma.h b/arch/x86/include/asm/mca_dma.h
deleted file mode 100644
index 45271aef82dd..000000000000
--- a/arch/x86/include/asm/mca_dma.h
+++ /dev/null
@@ -1,201 +0,0 @@
1#ifndef _ASM_X86_MCA_DMA_H
2#define _ASM_X86_MCA_DMA_H
3
4#include <asm/io.h>
5#include <linux/ioport.h>
6
7/*
8 * Microchannel specific DMA stuff. DMA on an MCA machine is fairly similar to
9 * standard PC dma, but it certainly has its quirks. DMA register addresses
10 * are in a different place and there are some added functions. Most of this
11 * should be pretty obvious on inspection. Note that the user must divide
12 * count by 2 when using 16-bit dma; that is not handled by these functions.
13 *
14 * Ramen Noodles are yummy.
15 *
16 * 1998 Tymm Twillman <tymm@computer.org>
17 */
18
19/*
20 * Registers that are used by the DMA controller; FN is the function register
21 * (tell the controller what to do) and EXE is the execution register (how
22 * to do it)
23 */
24
25#define MCA_DMA_REG_FN 0x18
26#define MCA_DMA_REG_EXE 0x1A
27
28/*
29 * Functions that the DMA controller can do
30 */
31
32#define MCA_DMA_FN_SET_IO 0x00
33#define MCA_DMA_FN_SET_ADDR 0x20
34#define MCA_DMA_FN_GET_ADDR 0x30
35#define MCA_DMA_FN_SET_COUNT 0x40
36#define MCA_DMA_FN_GET_COUNT 0x50
37#define MCA_DMA_FN_GET_STATUS 0x60
38#define MCA_DMA_FN_SET_MODE 0x70
39#define MCA_DMA_FN_SET_ARBUS 0x80
40#define MCA_DMA_FN_MASK 0x90
41#define MCA_DMA_FN_RESET_MASK 0xA0
42#define MCA_DMA_FN_MASTER_CLEAR 0xD0
43
44/*
45 * Modes (used by setting MCA_DMA_FN_MODE in the function register)
46 *
47 * Note that the MODE_READ is read from memory (write to device), and
48 * MODE_WRITE is vice-versa.
49 */
50
51#define MCA_DMA_MODE_XFER 0x04 /* read by default */
52#define MCA_DMA_MODE_READ 0x04 /* same as XFER */
53#define MCA_DMA_MODE_WRITE 0x08 /* OR with MODE_XFER to use */
54#define MCA_DMA_MODE_IO 0x01 /* DMA from IO register */
55#define MCA_DMA_MODE_16 0x40 /* 16 bit xfers */
56
57
58/**
59 * mca_enable_dma - channel to enable DMA on
60 * @dmanr: DMA channel
61 *
62 * Enable the MCA bus DMA on a channel. This can be called from
63 * IRQ context.
64 */
65
66static inline void mca_enable_dma(unsigned int dmanr)
67{
68 outb(MCA_DMA_FN_RESET_MASK | dmanr, MCA_DMA_REG_FN);
69}
70
71/**
72 * mca_disble_dma - channel to disable DMA on
73 * @dmanr: DMA channel
74 *
75 * Enable the MCA bus DMA on a channel. This can be called from
76 * IRQ context.
77 */
78
79static inline void mca_disable_dma(unsigned int dmanr)
80{
81 outb(MCA_DMA_FN_MASK | dmanr, MCA_DMA_REG_FN);
82}
83
84/**
85 * mca_set_dma_addr - load a 24bit DMA address
86 * @dmanr: DMA channel
87 * @a: 24bit bus address
88 *
89 * Load the address register in the DMA controller. This has a 24bit
90 * limitation (16Mb).
91 */
92
93static inline void mca_set_dma_addr(unsigned int dmanr, unsigned int a)
94{
95 outb(MCA_DMA_FN_SET_ADDR | dmanr, MCA_DMA_REG_FN);
96 outb(a & 0xff, MCA_DMA_REG_EXE);
97 outb((a >> 8) & 0xff, MCA_DMA_REG_EXE);
98 outb((a >> 16) & 0xff, MCA_DMA_REG_EXE);
99}
100
101/**
102 * mca_get_dma_addr - load a 24bit DMA address
103 * @dmanr: DMA channel
104 *
105 * Read the address register in the DMA controller. This has a 24bit
106 * limitation (16Mb). The return is a bus address.
107 */
108
109static inline unsigned int mca_get_dma_addr(unsigned int dmanr)
110{
111 unsigned int addr;
112
113 outb(MCA_DMA_FN_GET_ADDR | dmanr, MCA_DMA_REG_FN);
114 addr = inb(MCA_DMA_REG_EXE);
115 addr |= inb(MCA_DMA_REG_EXE) << 8;
116 addr |= inb(MCA_DMA_REG_EXE) << 16;
117
118 return addr;
119}
120
121/**
122 * mca_set_dma_count - load a 16bit transfer count
123 * @dmanr: DMA channel
124 * @count: count
125 *
126 * Set the DMA count for this channel. This can be up to 64Kbytes.
127 * Setting a count of zero will not do what you expect.
128 */
129
130static inline void mca_set_dma_count(unsigned int dmanr, unsigned int count)
131{
132 count--; /* transfers one more than count -- correct for this */
133
134 outb(MCA_DMA_FN_SET_COUNT | dmanr, MCA_DMA_REG_FN);
135 outb(count & 0xff, MCA_DMA_REG_EXE);
136 outb((count >> 8) & 0xff, MCA_DMA_REG_EXE);
137}
138
139/**
140 * mca_get_dma_residue - get the remaining bytes to transfer
141 * @dmanr: DMA channel
142 *
143 * This function returns the number of bytes left to transfer
144 * on this DMA channel.
145 */
146
147static inline unsigned int mca_get_dma_residue(unsigned int dmanr)
148{
149 unsigned short count;
150
151 outb(MCA_DMA_FN_GET_COUNT | dmanr, MCA_DMA_REG_FN);
152 count = 1 + inb(MCA_DMA_REG_EXE);
153 count += inb(MCA_DMA_REG_EXE) << 8;
154
155 return count;
156}
157
158/**
159 * mca_set_dma_io - set the port for an I/O transfer
160 * @dmanr: DMA channel
161 * @io_addr: an I/O port number
162 *
163 * Unlike the ISA bus DMA controllers the DMA on MCA bus can transfer
164 * with an I/O port target.
165 */
166
167static inline void mca_set_dma_io(unsigned int dmanr, unsigned int io_addr)
168{
169 /*
170 * DMA from a port address -- set the io address
171 */
172
173 outb(MCA_DMA_FN_SET_IO | dmanr, MCA_DMA_REG_FN);
174 outb(io_addr & 0xff, MCA_DMA_REG_EXE);
175 outb((io_addr >> 8) & 0xff, MCA_DMA_REG_EXE);
176}
177
178/**
179 * mca_set_dma_mode - set the DMA mode
180 * @dmanr: DMA channel
181 * @mode: mode to set
182 *
183 * The DMA controller supports several modes. The mode values you can
184 * set are-
185 *
186 * %MCA_DMA_MODE_READ when reading from the DMA device.
187 *
188 * %MCA_DMA_MODE_WRITE to writing to the DMA device.
189 *
190 * %MCA_DMA_MODE_IO to do DMA to or from an I/O port.
191 *
192 * %MCA_DMA_MODE_16 to do 16bit transfers.
193 */
194
195static inline void mca_set_dma_mode(unsigned int dmanr, unsigned int mode)
196{
197 outb(MCA_DMA_FN_SET_MODE | dmanr, MCA_DMA_REG_FN);
198 outb(mode, MCA_DMA_REG_EXE);
199}
200
201#endif /* _ASM_X86_MCA_DMA_H */
diff --git a/arch/x86/include/asm/mpspec.h b/arch/x86/include/asm/mpspec.h
index 9c7d95f6174b..3e2f42a4b872 100644
--- a/arch/x86/include/asm/mpspec.h
+++ b/arch/x86/include/asm/mpspec.h
@@ -40,7 +40,7 @@ extern int quad_local_to_mp_bus_id [NR_CPUS/4][4];
40 40
41#endif /* CONFIG_X86_64 */ 41#endif /* CONFIG_X86_64 */
42 42
43#if defined(CONFIG_MCA) || defined(CONFIG_EISA) 43#ifdef CONFIG_EISA
44extern int mp_bus_id_to_type[MAX_MP_BUSSES]; 44extern int mp_bus_id_to_type[MAX_MP_BUSSES];
45#endif 45#endif
46 46
diff --git a/arch/x86/include/asm/mpspec_def.h b/arch/x86/include/asm/mpspec_def.h
index c0a955a9a087..b31f8c098271 100644
--- a/arch/x86/include/asm/mpspec_def.h
+++ b/arch/x86/include/asm/mpspec_def.h
@@ -84,7 +84,7 @@ struct mpc_bus {
84#define BUSTYPE_EISA "EISA" 84#define BUSTYPE_EISA "EISA"
85#define BUSTYPE_ISA "ISA" 85#define BUSTYPE_ISA "ISA"
86#define BUSTYPE_INTERN "INTERN" /* Internal BUS */ 86#define BUSTYPE_INTERN "INTERN" /* Internal BUS */
87#define BUSTYPE_MCA "MCA" 87#define BUSTYPE_MCA "MCA" /* Obsolete */
88#define BUSTYPE_VL "VL" /* Local bus */ 88#define BUSTYPE_VL "VL" /* Local bus */
89#define BUSTYPE_PCI "PCI" 89#define BUSTYPE_PCI "PCI"
90#define BUSTYPE_PCMCIA "PCMCIA" 90#define BUSTYPE_PCMCIA "PCMCIA"
@@ -169,6 +169,5 @@ enum mp_bustype {
169 MP_BUS_ISA = 1, 169 MP_BUS_ISA = 1,
170 MP_BUS_EISA, 170 MP_BUS_EISA,
171 MP_BUS_PCI, 171 MP_BUS_PCI,
172 MP_BUS_MCA,
173}; 172};
174#endif /* _ASM_X86_MPSPEC_DEF_H */ 173#endif /* _ASM_X86_MPSPEC_DEF_H */
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 56ebd1f98447..bb8529275aab 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -49,7 +49,6 @@ obj-y += cpu/
49obj-y += acpi/ 49obj-y += acpi/
50obj-y += reboot.o 50obj-y += reboot.o
51obj-$(CONFIG_X86_32) += reboot_32.o 51obj-$(CONFIG_X86_32) += reboot_32.o
52obj-$(CONFIG_MCA) += mca_32.o
53obj-$(CONFIG_X86_MSR) += msr.o 52obj-$(CONFIG_X86_MSR) += msr.o
54obj-$(CONFIG_X86_CPUID) += cpuid.o 53obj-$(CONFIG_X86_CPUID) += cpuid.o
55obj-$(CONFIG_PCI) += early-quirks.o 54obj-$(CONFIG_PCI) += early-quirks.o
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 7c439fe4941b..8afb69319815 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -990,7 +990,7 @@ void __init mp_config_acpi_legacy_irqs(void)
990 int i; 990 int i;
991 struct mpc_intsrc mp_irq; 991 struct mpc_intsrc mp_irq;
992 992
993#if defined (CONFIG_MCA) || defined (CONFIG_EISA) 993#ifdef CONFIG_EISA
994 /* 994 /*
995 * Fabricate the legacy ISA bus (bus #31). 995 * Fabricate the legacy ISA bus (bus #31).
996 */ 996 */
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index ffdc152e507d..ac96561d1a99 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -140,7 +140,7 @@ int mp_irq_entries;
140/* GSI interrupts */ 140/* GSI interrupts */
141static int nr_irqs_gsi = NR_IRQS_LEGACY; 141static int nr_irqs_gsi = NR_IRQS_LEGACY;
142 142
143#if defined (CONFIG_MCA) || defined (CONFIG_EISA) 143#ifdef CONFIG_EISA
144int mp_bus_id_to_type[MAX_MP_BUSSES]; 144int mp_bus_id_to_type[MAX_MP_BUSSES];
145#endif 145#endif
146 146
@@ -835,7 +835,7 @@ static int __init find_isa_irq_apic(int irq, int type)
835 return -1; 835 return -1;
836} 836}
837 837
838#if defined(CONFIG_EISA) || defined(CONFIG_MCA) 838#ifdef CONFIG_EISA
839/* 839/*
840 * EISA Edge/Level control register, ELCR 840 * EISA Edge/Level control register, ELCR
841 */ 841 */
@@ -872,12 +872,6 @@ static int EISA_ELCR(unsigned int irq)
872#define default_PCI_trigger(idx) (1) 872#define default_PCI_trigger(idx) (1)
873#define default_PCI_polarity(idx) (1) 873#define default_PCI_polarity(idx) (1)
874 874
875/* MCA interrupts are always polarity zero level triggered,
876 * when listed as conforming in the MP table. */
877
878#define default_MCA_trigger(idx) (1)
879#define default_MCA_polarity(idx) default_ISA_polarity(idx)
880
881static int irq_polarity(int idx) 875static int irq_polarity(int idx)
882{ 876{
883 int bus = mp_irqs[idx].srcbus; 877 int bus = mp_irqs[idx].srcbus;
@@ -935,7 +929,7 @@ static int irq_trigger(int idx)
935 trigger = default_ISA_trigger(idx); 929 trigger = default_ISA_trigger(idx);
936 else 930 else
937 trigger = default_PCI_trigger(idx); 931 trigger = default_PCI_trigger(idx);
938#if defined(CONFIG_EISA) || defined(CONFIG_MCA) 932#ifdef CONFIG_EISA
939 switch (mp_bus_id_to_type[bus]) { 933 switch (mp_bus_id_to_type[bus]) {
940 case MP_BUS_ISA: /* ISA pin */ 934 case MP_BUS_ISA: /* ISA pin */
941 { 935 {
@@ -952,11 +946,6 @@ static int irq_trigger(int idx)
952 /* set before the switch */ 946 /* set before the switch */
953 break; 947 break;
954 } 948 }
955 case MP_BUS_MCA: /* MCA pin */
956 {
957 trigger = default_MCA_trigger(idx);
958 break;
959 }
960 default: 949 default:
961 { 950 {
962 printk(KERN_WARNING "broken BIOS!!\n"); 951 printk(KERN_WARNING "broken BIOS!!\n");
diff --git a/arch/x86/kernel/mca_32.c b/arch/x86/kernel/mca_32.c
deleted file mode 100644
index 7eb1e2b97827..000000000000
--- a/arch/x86/kernel/mca_32.c
+++ /dev/null
@@ -1,476 +0,0 @@
1/*
2 * Written by Martin Kolinek, February 1996
3 *
4 * Changes:
5 *
6 * Chris Beauregard July 28th, 1996
7 * - Fixed up integrated SCSI detection
8 *
9 * Chris Beauregard August 3rd, 1996
10 * - Made mca_info local
11 * - Made integrated registers accessible through standard function calls
12 * - Added name field
13 * - More sanity checking
14 *
15 * Chris Beauregard August 9th, 1996
16 * - Rewrote /proc/mca
17 *
18 * Chris Beauregard January 7th, 1997
19 * - Added basic NMI-processing
20 * - Added more information to mca_info structure
21 *
22 * David Weinehall October 12th, 1998
23 * - Made a lot of cleaning up in the source
24 * - Added use of save_flags / restore_flags
25 * - Added the 'driver_loaded' flag in MCA_adapter
26 * - Added an alternative implemention of ZP Gu's mca_find_unused_adapter
27 *
28 * David Weinehall March 24th, 1999
29 * - Fixed the output of 'Driver Installed' in /proc/mca/pos
30 * - Made the Integrated Video & SCSI show up even if they have id 0000
31 *
32 * Alexander Viro November 9th, 1999
33 * - Switched to regular procfs methods
34 *
35 * Alfred Arnold & David Weinehall August 23rd, 2000
36 * - Added support for Planar POS-registers
37 */
38
39#include <linux/module.h>
40#include <linux/types.h>
41#include <linux/errno.h>
42#include <linux/kernel.h>
43#include <linux/mca.h>
44#include <linux/kprobes.h>
45#include <linux/slab.h>
46#include <asm/io.h>
47#include <linux/proc_fs.h>
48#include <linux/mman.h>
49#include <linux/mm.h>
50#include <linux/pagemap.h>
51#include <linux/ioport.h>
52#include <asm/uaccess.h>
53#include <linux/init.h>
54
55static unsigned char which_scsi;
56
57int MCA_bus;
58EXPORT_SYMBOL(MCA_bus);
59
60/*
61 * Motherboard register spinlock. Untested on SMP at the moment, but
62 * are there any MCA SMP boxes?
63 *
64 * Yes - Alan
65 */
66static DEFINE_SPINLOCK(mca_lock);
67
68/* Build the status info for the adapter */
69
70static void mca_configure_adapter_status(struct mca_device *mca_dev)
71{
72 mca_dev->status = MCA_ADAPTER_NONE;
73
74 mca_dev->pos_id = mca_dev->pos[0]
75 + (mca_dev->pos[1] << 8);
76
77 if (!mca_dev->pos_id && mca_dev->slot < MCA_MAX_SLOT_NR) {
78
79 /*
80 * id = 0x0000 usually indicates hardware failure,
81 * however, ZP Gu (zpg@castle.net> reports that his 9556
82 * has 0x0000 as id and everything still works. There
83 * also seem to be an adapter with id = 0x0000; the
84 * NCR Parallel Bus Memory Card. Until this is confirmed,
85 * however, this code will stay.
86 */
87
88 mca_dev->status = MCA_ADAPTER_ERROR;
89
90 return;
91 } else if (mca_dev->pos_id != 0xffff) {
92
93 /*
94 * 0xffff usually indicates that there's no adapter,
95 * however, some integrated adapters may have 0xffff as
96 * their id and still be valid. Examples are on-board
97 * VGA of the 55sx, the integrated SCSI of the 56 & 57,
98 * and possibly also the 95 ULTIMEDIA.
99 */
100
101 mca_dev->status = MCA_ADAPTER_NORMAL;
102 }
103
104 if ((mca_dev->pos_id == 0xffff ||
105 mca_dev->pos_id == 0x0000) && mca_dev->slot >= MCA_MAX_SLOT_NR) {
106 int j;
107
108 for (j = 2; j < 8; j++) {
109 if (mca_dev->pos[j] != 0xff) {
110 mca_dev->status = MCA_ADAPTER_NORMAL;
111 break;
112 }
113 }
114 }
115
116 if (!(mca_dev->pos[2] & MCA_ENABLED)) {
117
118 /* enabled bit is in POS 2 */
119
120 mca_dev->status = MCA_ADAPTER_DISABLED;
121 }
122} /* mca_configure_adapter_status */
123
124/*--------------------------------------------------------------------*/
125
126static struct resource mca_standard_resources[] = {
127 { .start = 0x60, .end = 0x60, .name = "system control port B (MCA)" },
128 { .start = 0x90, .end = 0x90, .name = "arbitration (MCA)" },
129 { .start = 0x91, .end = 0x91, .name = "card Select Feedback (MCA)" },
130 { .start = 0x92, .end = 0x92, .name = "system Control port A (MCA)" },
131 { .start = 0x94, .end = 0x94, .name = "system board setup (MCA)" },
132 { .start = 0x96, .end = 0x97, .name = "POS (MCA)" },
133 { .start = 0x100, .end = 0x107, .name = "POS (MCA)" }
134};
135
136#define MCA_STANDARD_RESOURCES ARRAY_SIZE(mca_standard_resources)
137
138/*
139 * mca_read_and_store_pos - read the POS registers into a memory buffer
140 * @pos: a char pointer to 8 bytes, contains the POS register value on
141 * successful return
142 *
143 * Returns 1 if a card actually exists (i.e. the pos isn't
144 * all 0xff) or 0 otherwise
145 */
146static int mca_read_and_store_pos(unsigned char *pos)
147{
148 int j;
149 int found = 0;
150
151 for (j = 0; j < 8; j++) {
152 pos[j] = inb_p(MCA_POS_REG(j));
153 if (pos[j] != 0xff) {
154 /* 0xff all across means no device. 0x00 means
155 * something's broken, but a device is
156 * probably there. However, if you get 0x00
157 * from a motherboard register it won't matter
158 * what we find. For the record, on the
159 * 57SLC, the integrated SCSI adapter has
160 * 0xffff for the adapter ID, but nonzero for
161 * other registers. */
162
163 found = 1;
164 }
165 }
166 return found;
167}
168
169static unsigned char mca_pc_read_pos(struct mca_device *mca_dev, int reg)
170{
171 unsigned char byte;
172 unsigned long flags;
173
174 if (reg < 0 || reg >= 8)
175 return 0;
176
177 spin_lock_irqsave(&mca_lock, flags);
178 if (mca_dev->pos_register) {
179 /* Disable adapter setup, enable motherboard setup */
180
181 outb_p(0, MCA_ADAPTER_SETUP_REG);
182 outb_p(mca_dev->pos_register, MCA_MOTHERBOARD_SETUP_REG);
183
184 byte = inb_p(MCA_POS_REG(reg));
185 outb_p(0xff, MCA_MOTHERBOARD_SETUP_REG);
186 } else {
187
188 /* Make sure motherboard setup is off */
189
190 outb_p(0xff, MCA_MOTHERBOARD_SETUP_REG);
191
192 /* Read the appropriate register */
193
194 outb_p(0x8|(mca_dev->slot & 0xf), MCA_ADAPTER_SETUP_REG);
195 byte = inb_p(MCA_POS_REG(reg));
196 outb_p(0, MCA_ADAPTER_SETUP_REG);
197 }
198 spin_unlock_irqrestore(&mca_lock, flags);
199
200 mca_dev->pos[reg] = byte;
201
202 return byte;
203}
204
205static void mca_pc_write_pos(struct mca_device *mca_dev, int reg,
206 unsigned char byte)
207{
208 unsigned long flags;
209
210 if (reg < 0 || reg >= 8)
211 return;
212
213 spin_lock_irqsave(&mca_lock, flags);
214
215 /* Make sure motherboard setup is off */
216
217 outb_p(0xff, MCA_MOTHERBOARD_SETUP_REG);
218
219 /* Read in the appropriate register */
220
221 outb_p(0x8|(mca_dev->slot&0xf), MCA_ADAPTER_SETUP_REG);
222 outb_p(byte, MCA_POS_REG(reg));
223 outb_p(0, MCA_ADAPTER_SETUP_REG);
224
225 spin_unlock_irqrestore(&mca_lock, flags);
226
227 /* Update the global register list, while we have the byte */
228
229 mca_dev->pos[reg] = byte;
230
231}
232
233/* for the primary MCA bus, we have identity transforms */
234static int mca_dummy_transform_irq(struct mca_device *mca_dev, int irq)
235{
236 return irq;
237}
238
239static int mca_dummy_transform_ioport(struct mca_device *mca_dev, int port)
240{
241 return port;
242}
243
244static void *mca_dummy_transform_memory(struct mca_device *mca_dev, void *mem)
245{
246 return mem;
247}
248
249
250static int __init mca_init(void)
251{
252 unsigned int i, j;
253 struct mca_device *mca_dev;
254 unsigned char pos[8];
255 short mca_builtin_scsi_ports[] = {0xf7, 0xfd, 0x00};
256 struct mca_bus *bus;
257
258 /*
259 * WARNING: Be careful when making changes here. Putting an adapter
260 * and the motherboard simultaneously into setup mode may result in
261 * damage to chips (according to The Indispensable PC Hardware Book
262 * by Hans-Peter Messmer). Also, we disable system interrupts (so
263 * that we are not disturbed in the middle of this).
264 */
265
266 /* Make sure the MCA bus is present */
267
268 if (mca_system_init()) {
269 printk(KERN_ERR "MCA bus system initialisation failed\n");
270 return -ENODEV;
271 }
272
273 if (!MCA_bus)
274 return -ENODEV;
275
276 printk(KERN_INFO "Micro Channel bus detected.\n");
277
278 /* All MCA systems have at least a primary bus */
279 bus = mca_attach_bus(MCA_PRIMARY_BUS);
280 if (!bus)
281 goto out_nomem;
282 bus->default_dma_mask = 0xffffffffLL;
283 bus->f.mca_write_pos = mca_pc_write_pos;
284 bus->f.mca_read_pos = mca_pc_read_pos;
285 bus->f.mca_transform_irq = mca_dummy_transform_irq;
286 bus->f.mca_transform_ioport = mca_dummy_transform_ioport;
287 bus->f.mca_transform_memory = mca_dummy_transform_memory;
288
289 /* get the motherboard device */
290 mca_dev = kzalloc(sizeof(struct mca_device), GFP_KERNEL);
291 if (unlikely(!mca_dev))
292 goto out_nomem;
293
294 /*
295 * We do not expect many MCA interrupts during initialization,
296 * but let us be safe:
297 */
298 spin_lock_irq(&mca_lock);
299
300 /* Make sure adapter setup is off */
301
302 outb_p(0, MCA_ADAPTER_SETUP_REG);
303
304 /* Read motherboard POS registers */
305
306 mca_dev->pos_register = 0x7f;
307 outb_p(mca_dev->pos_register, MCA_MOTHERBOARD_SETUP_REG);
308 mca_dev->name[0] = 0;
309 mca_read_and_store_pos(mca_dev->pos);
310 mca_configure_adapter_status(mca_dev);
311 /* fake POS and slot for a motherboard */
312 mca_dev->pos_id = MCA_MOTHERBOARD_POS;
313 mca_dev->slot = MCA_MOTHERBOARD;
314 mca_register_device(MCA_PRIMARY_BUS, mca_dev);
315
316 mca_dev = kzalloc(sizeof(struct mca_device), GFP_ATOMIC);
317 if (unlikely(!mca_dev))
318 goto out_unlock_nomem;
319
320 /* Put motherboard into video setup mode, read integrated video
321 * POS registers, and turn motherboard setup off.
322 */
323
324 mca_dev->pos_register = 0xdf;
325 outb_p(mca_dev->pos_register, MCA_MOTHERBOARD_SETUP_REG);
326 mca_dev->name[0] = 0;
327 mca_read_and_store_pos(mca_dev->pos);
328 mca_configure_adapter_status(mca_dev);
329 /* fake POS and slot for the integrated video */
330 mca_dev->pos_id = MCA_INTEGVIDEO_POS;
331 mca_dev->slot = MCA_INTEGVIDEO;
332 mca_register_device(MCA_PRIMARY_BUS, mca_dev);
333
334 /*
335 * Put motherboard into scsi setup mode, read integrated scsi
336 * POS registers, and turn motherboard setup off.
337 *
338 * It seems there are two possible SCSI registers. Martin says that
339 * for the 56,57, 0xf7 is the one, but fails on the 76.
340 * Alfredo (apena@vnet.ibm.com) says
341 * 0xfd works on his machine. We'll try both of them. I figure it's
342 * a good bet that only one could be valid at a time. This could
343 * screw up though if one is used for something else on the other
344 * machine.
345 */
346
347 for (i = 0; (which_scsi = mca_builtin_scsi_ports[i]) != 0; i++) {
348 outb_p(which_scsi, MCA_MOTHERBOARD_SETUP_REG);
349 if (mca_read_and_store_pos(pos))
350 break;
351 }
352 if (which_scsi) {
353 /* found a scsi card */
354 mca_dev = kzalloc(sizeof(struct mca_device), GFP_ATOMIC);
355 if (unlikely(!mca_dev))
356 goto out_unlock_nomem;
357
358 for (j = 0; j < 8; j++)
359 mca_dev->pos[j] = pos[j];
360
361 mca_configure_adapter_status(mca_dev);
362 /* fake POS and slot for integrated SCSI controller */
363 mca_dev->pos_id = MCA_INTEGSCSI_POS;
364 mca_dev->slot = MCA_INTEGSCSI;
365 mca_dev->pos_register = which_scsi;
366 mca_register_device(MCA_PRIMARY_BUS, mca_dev);
367 }
368
369 /* Turn off motherboard setup */
370
371 outb_p(0xff, MCA_MOTHERBOARD_SETUP_REG);
372
373 /*
374 * Now loop over MCA slots: put each adapter into setup mode, and
375 * read its POS registers. Then put adapter setup off.
376 */
377
378 for (i = 0; i < MCA_MAX_SLOT_NR; i++) {
379 outb_p(0x8|(i&0xf), MCA_ADAPTER_SETUP_REG);
380 if (!mca_read_and_store_pos(pos))
381 continue;
382
383 mca_dev = kzalloc(sizeof(struct mca_device), GFP_ATOMIC);
384 if (unlikely(!mca_dev))
385 goto out_unlock_nomem;
386
387 for (j = 0; j < 8; j++)
388 mca_dev->pos[j] = pos[j];
389
390 mca_dev->driver_loaded = 0;
391 mca_dev->slot = i;
392 mca_dev->pos_register = 0;
393 mca_configure_adapter_status(mca_dev);
394 mca_register_device(MCA_PRIMARY_BUS, mca_dev);
395 }
396 outb_p(0, MCA_ADAPTER_SETUP_REG);
397
398 /* Enable interrupts and return memory start */
399 spin_unlock_irq(&mca_lock);
400
401 for (i = 0; i < MCA_STANDARD_RESOURCES; i++)
402 request_resource(&ioport_resource, mca_standard_resources + i);
403
404 mca_do_proc_init();
405
406 return 0;
407
408 out_unlock_nomem:
409 spin_unlock_irq(&mca_lock);
410 out_nomem:
411 printk(KERN_EMERG "Failed memory allocation in MCA setup!\n");
412 return -ENOMEM;
413}
414
415subsys_initcall(mca_init);
416
417/*--------------------------------------------------------------------*/
418
419static __kprobes void
420mca_handle_nmi_device(struct mca_device *mca_dev, int check_flag)
421{
422 int slot = mca_dev->slot;
423
424 if (slot == MCA_INTEGSCSI) {
425 printk(KERN_CRIT "NMI: caused by MCA integrated SCSI adapter (%s)\n",
426 mca_dev->name);
427 } else if (slot == MCA_INTEGVIDEO) {
428 printk(KERN_CRIT "NMI: caused by MCA integrated video adapter (%s)\n",
429 mca_dev->name);
430 } else if (slot == MCA_MOTHERBOARD) {
431 printk(KERN_CRIT "NMI: caused by motherboard (%s)\n",
432 mca_dev->name);
433 }
434
435 /* More info available in POS 6 and 7? */
436
437 if (check_flag) {
438 unsigned char pos6, pos7;
439
440 pos6 = mca_device_read_pos(mca_dev, 6);
441 pos7 = mca_device_read_pos(mca_dev, 7);
442
443 printk(KERN_CRIT "NMI: POS 6 = 0x%x, POS 7 = 0x%x\n", pos6, pos7);
444 }
445
446} /* mca_handle_nmi_slot */
447
448/*--------------------------------------------------------------------*/
449
450static int __kprobes mca_handle_nmi_callback(struct device *dev, void *data)
451{
452 struct mca_device *mca_dev = to_mca_device(dev);
453 unsigned char pos5;
454
455 pos5 = mca_device_read_pos(mca_dev, 5);
456
457 if (!(pos5 & 0x80)) {
458 /*
459 * Bit 7 of POS 5 is reset when this adapter has a hardware
460 * error. Bit 7 it reset if there's error information
461 * available in POS 6 and 7.
462 */
463 mca_handle_nmi_device(mca_dev, !(pos5 & 0x40));
464 return 1;
465 }
466 return 0;
467}
468
469void __kprobes mca_handle_nmi(void)
470{
471 /*
472 * First try - scan the various adapters and see if a specific
473 * adapter was responsible for the error.
474 */
475 bus_for_each_dev(&mca_bus_type, NULL, NULL, mca_handle_nmi_callback);
476}
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index ca470e4c92dc..b02d4dd6b8a3 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -97,7 +97,7 @@ static void __init MP_bus_info(struct mpc_bus *m)
97 97
98 set_bit(m->busid, mp_bus_not_pci); 98 set_bit(m->busid, mp_bus_not_pci);
99 if (strncmp(str, BUSTYPE_ISA, sizeof(BUSTYPE_ISA) - 1) == 0) { 99 if (strncmp(str, BUSTYPE_ISA, sizeof(BUSTYPE_ISA) - 1) == 0) {
100#if defined(CONFIG_EISA) || defined(CONFIG_MCA) 100#ifdef CONFIG_EISA
101 mp_bus_id_to_type[m->busid] = MP_BUS_ISA; 101 mp_bus_id_to_type[m->busid] = MP_BUS_ISA;
102#endif 102#endif
103 } else if (strncmp(str, BUSTYPE_PCI, sizeof(BUSTYPE_PCI) - 1) == 0) { 103 } else if (strncmp(str, BUSTYPE_PCI, sizeof(BUSTYPE_PCI) - 1) == 0) {
@@ -105,12 +105,10 @@ static void __init MP_bus_info(struct mpc_bus *m)
105 x86_init.mpparse.mpc_oem_pci_bus(m); 105 x86_init.mpparse.mpc_oem_pci_bus(m);
106 106
107 clear_bit(m->busid, mp_bus_not_pci); 107 clear_bit(m->busid, mp_bus_not_pci);
108#if defined(CONFIG_EISA) || defined(CONFIG_MCA) 108#ifdef CONFIG_EISA
109 mp_bus_id_to_type[m->busid] = MP_BUS_PCI; 109 mp_bus_id_to_type[m->busid] = MP_BUS_PCI;
110 } else if (strncmp(str, BUSTYPE_EISA, sizeof(BUSTYPE_EISA) - 1) == 0) { 110 } else if (strncmp(str, BUSTYPE_EISA, sizeof(BUSTYPE_EISA) - 1) == 0) {
111 mp_bus_id_to_type[m->busid] = MP_BUS_EISA; 111 mp_bus_id_to_type[m->busid] = MP_BUS_EISA;
112 } else if (strncmp(str, BUSTYPE_MCA, sizeof(BUSTYPE_MCA) - 1) == 0) {
113 mp_bus_id_to_type[m->busid] = MP_BUS_MCA;
114#endif 112#endif
115 } else 113 } else
116 printk(KERN_WARNING "Unknown bustype %s - ignoring\n", str); 114 printk(KERN_WARNING "Unknown bustype %s - ignoring\n", str);
@@ -368,9 +366,6 @@ static void __init construct_ioapic_table(int mpc_default_type)
368 case 3: 366 case 3:
369 memcpy(bus.bustype, "EISA ", 6); 367 memcpy(bus.bustype, "EISA ", 6);
370 break; 368 break;
371 case 4:
372 case 7:
373 memcpy(bus.bustype, "MCA ", 6);
374 } 369 }
375 MP_bus_info(&bus); 370 MP_bus_info(&bus);
376 if (mpc_default_type > 4) { 371 if (mpc_default_type > 4) {
@@ -623,7 +618,7 @@ void __init default_find_smp_config(void)
623 return; 618 return;
624 /* 619 /*
625 * If it is an SMP machine we should know now, unless the 620 * If it is an SMP machine we should know now, unless the
626 * configuration is in an EISA/MCA bus machine with an 621 * configuration is in an EISA bus machine with an
627 * extended bios data area. 622 * extended bios data area.
628 * 623 *
629 * there is a real-mode segmented pointer pointing to the 624 * there is a real-mode segmented pointer pointing to the
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index bffdfd48c1f2..90875279ef3d 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -19,8 +19,6 @@
19#include <linux/slab.h> 19#include <linux/slab.h>
20#include <linux/export.h> 20#include <linux/export.h>
21 21
22#include <linux/mca.h>
23
24#if defined(CONFIG_EDAC) 22#if defined(CONFIG_EDAC)
25#include <linux/edac.h> 23#include <linux/edac.h>
26#endif 24#endif
@@ -247,16 +245,6 @@ unknown_nmi_error(unsigned char reason, struct pt_regs *regs)
247 245
248 __this_cpu_add(nmi_stats.unknown, 1); 246 __this_cpu_add(nmi_stats.unknown, 1);
249 247
250#ifdef CONFIG_MCA
251 /*
252 * Might actually be able to figure out what the guilty party
253 * is:
254 */
255 if (MCA_bus) {
256 mca_handle_nmi();
257 return;
258 }
259#endif
260 pr_emerg("Uhhuh. NMI received for unknown reason %02x on CPU %d.\n", 248 pr_emerg("Uhhuh. NMI received for unknown reason %02x on CPU %d.\n",
261 reason, smp_processor_id()); 249 reason, smp_processor_id());
262 250
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 9b4204e06665..366c688d619e 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -34,7 +34,6 @@
34#include <linux/memblock.h> 34#include <linux/memblock.h>
35#include <linux/seq_file.h> 35#include <linux/seq_file.h>
36#include <linux/console.h> 36#include <linux/console.h>
37#include <linux/mca.h>
38#include <linux/root_dev.h> 37#include <linux/root_dev.h>
39#include <linux/highmem.h> 38#include <linux/highmem.h>
40#include <linux/module.h> 39#include <linux/module.h>
@@ -179,12 +178,6 @@ struct cpuinfo_x86 new_cpu_data __cpuinitdata = {0, 0, 0, 0, -1, 1, 0, 0, -1};
179/* common cpu data for all cpus */ 178/* common cpu data for all cpus */
180struct cpuinfo_x86 boot_cpu_data __read_mostly = {0, 0, 0, 0, -1, 1, 0, 0, -1}; 179struct cpuinfo_x86 boot_cpu_data __read_mostly = {0, 0, 0, 0, -1, 1, 0, 0, -1};
181EXPORT_SYMBOL(boot_cpu_data); 180EXPORT_SYMBOL(boot_cpu_data);
182static void set_mca_bus(int x)
183{
184#ifdef CONFIG_MCA
185 MCA_bus = x;
186#endif
187}
188 181
189unsigned int def_to_bigsmp; 182unsigned int def_to_bigsmp;
190 183
@@ -716,7 +709,6 @@ void __init setup_arch(char **cmdline_p)
716 apm_info.bios = boot_params.apm_bios_info; 709 apm_info.bios = boot_params.apm_bios_info;
717 ist_info = boot_params.ist_info; 710 ist_info = boot_params.ist_info;
718 if (boot_params.sys_desc_table.length != 0) { 711 if (boot_params.sys_desc_table.length != 0) {
719 set_mca_bus(boot_params.sys_desc_table.table[3] & 0x2);
720 machine_id = boot_params.sys_desc_table.table[0]; 712 machine_id = boot_params.sys_desc_table.table[0];
721 machine_submodel_id = boot_params.sys_desc_table.table[1]; 713 machine_submodel_id = boot_params.sys_desc_table.table[1];
722 BIOS_revision = boot_params.sys_desc_table.table[2]; 714 BIOS_revision = boot_params.sys_desc_table.table[2];
diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index c6eba2b42673..24d3c91e9812 100644
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -14,7 +14,6 @@
14#include <linux/i8253.h> 14#include <linux/i8253.h>
15#include <linux/time.h> 15#include <linux/time.h>
16#include <linux/export.h> 16#include <linux/export.h>
17#include <linux/mca.h>
18 17
19#include <asm/vsyscall.h> 18#include <asm/vsyscall.h>
20#include <asm/x86_init.h> 19#include <asm/x86_init.h>
@@ -58,11 +57,6 @@ EXPORT_SYMBOL(profile_pc);
58static irqreturn_t timer_interrupt(int irq, void *dev_id) 57static irqreturn_t timer_interrupt(int irq, void *dev_id)
59{ 58{
60 global_clock_event->event_handler(global_clock_event); 59 global_clock_event->event_handler(global_clock_event);
61
62 /* MCA bus quirk: Acknowledge irq0 by setting bit 7 in port 0x61 */
63 if (MCA_bus)
64 outb_p(inb_p(0x61)| 0x80, 0x61);
65
66 return IRQ_HANDLED; 60 return IRQ_HANDLED;
67} 61}
68 62
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 92d5756d85fc..ff08457a025d 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -37,10 +37,6 @@
37#include <linux/eisa.h> 37#include <linux/eisa.h>
38#endif 38#endif
39 39
40#ifdef CONFIG_MCA
41#include <linux/mca.h>
42#endif
43
44#if defined(CONFIG_EDAC) 40#if defined(CONFIG_EDAC)
45#include <linux/edac.h> 41#include <linux/edac.h>
46#endif 42#endif
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-24 10:33:46 -0400