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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 05:16:39 -0400
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 05:16:39 -0400
commitc750a66b0ebfcd8f4cb353ab37b286c8cd93ad10 (patch)
treea97f03edb6b38ffa69160b6f9ae5291138b2b231 /arch/x86/mach-generic
parentc2b84d8d1a66a0a886de51f1bfef5c4f16c0c784 (diff)
i386: move mach-generic
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/mach-generic')
-rw-r--r--arch/x86/mach-generic/Makefile8
-rw-r--r--arch/x86/mach-generic/bigsmp.c57
-rw-r--r--arch/x86/mach-generic/default.c26
-rw-r--r--arch/x86/mach-generic/es7000.c69
-rw-r--r--arch/x86/mach-generic/probe.c125
-rw-r--r--arch/x86/mach-generic/summit.c27
6 files changed, 312 insertions, 0 deletions
diff --git a/arch/x86/mach-generic/Makefile b/arch/x86/mach-generic/Makefile
new file mode 100644
index 000000000000..2f216f55b2dd
--- /dev/null
+++ b/arch/x86/mach-generic/Makefile
@@ -0,0 +1,8 @@
1#
2# Makefile for the generic architecture
3#
4
5EXTRA_CFLAGS := -Iarch/i386/kernel
6
7obj-y := probe.o summit.o bigsmp.o es7000.o default.o
8obj-y += ../../i386/mach-es7000/
diff --git a/arch/x86/mach-generic/bigsmp.c b/arch/x86/mach-generic/bigsmp.c
new file mode 100644
index 000000000000..58a477baec30
--- /dev/null
+++ b/arch/x86/mach-generic/bigsmp.c
@@ -0,0 +1,57 @@
1/*
2 * APIC driver for "bigsmp" XAPIC machines with more than 8 virtual CPUs.
3 * Drives the local APIC in "clustered mode".
4 */
5#define APIC_DEFINITION 1
6#include <linux/threads.h>
7#include <linux/cpumask.h>
8#include <asm/smp.h>
9#include <asm/mpspec.h>
10#include <asm/genapic.h>
11#include <asm/fixmap.h>
12#include <asm/apicdef.h>
13#include <linux/kernel.h>
14#include <linux/smp.h>
15#include <linux/init.h>
16#include <linux/dmi.h>
17#include <asm/mach-bigsmp/mach_apic.h>
18#include <asm/mach-bigsmp/mach_apicdef.h>
19#include <asm/mach-bigsmp/mach_ipi.h>
20#include <asm/mach-default/mach_mpparse.h>
21
22static int dmi_bigsmp; /* can be set by dmi scanners */
23
24static int hp_ht_bigsmp(struct dmi_system_id *d)
25{
26#ifdef CONFIG_X86_GENERICARCH
27 printk(KERN_NOTICE "%s detected: force use of apic=bigsmp\n", d->ident);
28 dmi_bigsmp = 1;
29#endif
30 return 0;
31}
32
33
34static struct dmi_system_id bigsmp_dmi_table[] = {
35 { hp_ht_bigsmp, "HP ProLiant DL760 G2", {
36 DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
37 DMI_MATCH(DMI_BIOS_VERSION, "P44-"),
38 }},
39
40 { hp_ht_bigsmp, "HP ProLiant DL740", {
41 DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
42 DMI_MATCH(DMI_BIOS_VERSION, "P47-"),
43 }},
44 { }
45};
46
47
48static int probe_bigsmp(void)
49{
50 if (def_to_bigsmp)
51 dmi_bigsmp = 1;
52 else
53 dmi_check_system(bigsmp_dmi_table);
54 return dmi_bigsmp;
55}
56
57struct genapic apic_bigsmp = APIC_INIT("bigsmp", probe_bigsmp);
diff --git a/arch/x86/mach-generic/default.c b/arch/x86/mach-generic/default.c
new file mode 100644
index 000000000000..8685208d8512
--- /dev/null
+++ b/arch/x86/mach-generic/default.c
@@ -0,0 +1,26 @@
1/*
2 * Default generic APIC driver. This handles upto 8 CPUs.
3 */
4#define APIC_DEFINITION 1
5#include <linux/threads.h>
6#include <linux/cpumask.h>
7#include <asm/mpspec.h>
8#include <asm/mach-default/mach_apicdef.h>
9#include <asm/genapic.h>
10#include <asm/fixmap.h>
11#include <asm/apicdef.h>
12#include <linux/kernel.h>
13#include <linux/string.h>
14#include <linux/smp.h>
15#include <linux/init.h>
16#include <asm/mach-default/mach_apic.h>
17#include <asm/mach-default/mach_ipi.h>
18#include <asm/mach-default/mach_mpparse.h>
19
20/* should be called last. */
21static int probe_default(void)
22{
23 return 1;
24}
25
26struct genapic apic_default = APIC_INIT("default", probe_default);
diff --git a/arch/x86/mach-generic/es7000.c b/arch/x86/mach-generic/es7000.c
new file mode 100644
index 000000000000..4742626f08c4
--- /dev/null
+++ b/arch/x86/mach-generic/es7000.c
@@ -0,0 +1,69 @@
1/*
2 * APIC driver for the Unisys ES7000 chipset.
3 */
4#define APIC_DEFINITION 1
5#include <linux/threads.h>
6#include <linux/cpumask.h>
7#include <asm/smp.h>
8#include <asm/mpspec.h>
9#include <asm/genapic.h>
10#include <asm/fixmap.h>
11#include <asm/apicdef.h>
12#include <linux/kernel.h>
13#include <linux/string.h>
14#include <linux/smp.h>
15#include <linux/init.h>
16#include <asm/mach-es7000/mach_apicdef.h>
17#include <asm/mach-es7000/mach_apic.h>
18#include <asm/mach-es7000/mach_ipi.h>
19#include <asm/mach-es7000/mach_mpparse.h>
20#include <asm/mach-es7000/mach_wakecpu.h>
21
22static int probe_es7000(void)
23{
24 /* probed later in mptable/ACPI hooks */
25 return 0;
26}
27
28extern void es7000_sw_apic(void);
29static void __init enable_apic_mode(void)
30{
31 es7000_sw_apic();
32 return;
33}
34
35static __init int mps_oem_check(struct mp_config_table *mpc, char *oem,
36 char *productid)
37{
38 if (mpc->mpc_oemptr) {
39 struct mp_config_oemtable *oem_table =
40 (struct mp_config_oemtable *)mpc->mpc_oemptr;
41 if (!strncmp(oem, "UNISYS", 6))
42 return parse_unisys_oem((char *)oem_table);
43 }
44 return 0;
45}
46
47#ifdef CONFIG_ACPI
48/* Hook from generic ACPI tables.c */
49static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
50{
51 unsigned long oem_addr;
52 if (!find_unisys_acpi_oem_table(&oem_addr)) {
53 if (es7000_check_dsdt())
54 return parse_unisys_oem((char *)oem_addr);
55 else {
56 setup_unisys();
57 return 1;
58 }
59 }
60 return 0;
61}
62#else
63static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
64{
65 return 0;
66}
67#endif
68
69struct genapic __initdata_refok apic_es7000 = APIC_INIT("es7000", probe_es7000);
diff --git a/arch/x86/mach-generic/probe.c b/arch/x86/mach-generic/probe.c
new file mode 100644
index 000000000000..74f3da634423
--- /dev/null
+++ b/arch/x86/mach-generic/probe.c
@@ -0,0 +1,125 @@
1/* Copyright 2003 Andi Kleen, SuSE Labs.
2 * Subject to the GNU Public License, v.2
3 *
4 * Generic x86 APIC driver probe layer.
5 */
6#include <linux/threads.h>
7#include <linux/cpumask.h>
8#include <linux/string.h>
9#include <linux/kernel.h>
10#include <linux/ctype.h>
11#include <linux/init.h>
12#include <linux/errno.h>
13#include <asm/fixmap.h>
14#include <asm/mpspec.h>
15#include <asm/apicdef.h>
16#include <asm/genapic.h>
17
18extern struct genapic apic_summit;
19extern struct genapic apic_bigsmp;
20extern struct genapic apic_es7000;
21extern struct genapic apic_default;
22
23struct genapic *genapic = &apic_default;
24
25struct genapic *apic_probe[] __initdata = {
26 &apic_summit,
27 &apic_bigsmp,
28 &apic_es7000,
29 &apic_default, /* must be last */
30 NULL,
31};
32
33static int cmdline_apic __initdata;
34static int __init parse_apic(char *arg)
35{
36 int i;
37
38 if (!arg)
39 return -EINVAL;
40
41 for (i = 0; apic_probe[i]; i++) {
42 if (!strcmp(apic_probe[i]->name, arg)) {
43 genapic = apic_probe[i];
44 cmdline_apic = 1;
45 return 0;
46 }
47 }
48
49 /* Parsed again by __setup for debug/verbose */
50 return 0;
51}
52early_param("apic", parse_apic);
53
54void __init generic_bigsmp_probe(void)
55{
56 /*
57 * This routine is used to switch to bigsmp mode when
58 * - There is no apic= option specified by the user
59 * - generic_apic_probe() has choosen apic_default as the sub_arch
60 * - we find more than 8 CPUs in acpi LAPIC listing with xAPIC support
61 */
62
63 if (!cmdline_apic && genapic == &apic_default)
64 if (apic_bigsmp.probe()) {
65 genapic = &apic_bigsmp;
66 printk(KERN_INFO "Overriding APIC driver with %s\n",
67 genapic->name);
68 }
69}
70
71void __init generic_apic_probe(void)
72{
73 if (!cmdline_apic) {
74 int i;
75 for (i = 0; apic_probe[i]; i++) {
76 if (apic_probe[i]->probe()) {
77 genapic = apic_probe[i];
78 break;
79 }
80 }
81 /* Not visible without early console */
82 if (!apic_probe[i])
83 panic("Didn't find an APIC driver");
84 }
85 printk(KERN_INFO "Using APIC driver %s\n", genapic->name);
86}
87
88/* These functions can switch the APIC even after the initial ->probe() */
89
90int __init mps_oem_check(struct mp_config_table *mpc, char *oem, char *productid)
91{
92 int i;
93 for (i = 0; apic_probe[i]; ++i) {
94 if (apic_probe[i]->mps_oem_check(mpc,oem,productid)) {
95 if (!cmdline_apic) {
96 genapic = apic_probe[i];
97 printk(KERN_INFO "Switched to APIC driver `%s'.\n",
98 genapic->name);
99 }
100 return 1;
101 }
102 }
103 return 0;
104}
105
106int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
107{
108 int i;
109 for (i = 0; apic_probe[i]; ++i) {
110 if (apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id)) {
111 if (!cmdline_apic) {
112 genapic = apic_probe[i];
113 printk(KERN_INFO "Switched to APIC driver `%s'.\n",
114 genapic->name);
115 }
116 return 1;
117 }
118 }
119 return 0;
120}
121
122int hard_smp_processor_id(void)
123{
124 return genapic->get_apic_id(*(unsigned long *)(APIC_BASE+APIC_ID));
125}
diff --git a/arch/x86/mach-generic/summit.c b/arch/x86/mach-generic/summit.c
new file mode 100644
index 000000000000..74883ccb8f73
--- /dev/null
+++ b/arch/x86/mach-generic/summit.c
@@ -0,0 +1,27 @@
1/*
2 * APIC driver for the IBM "Summit" chipset.
3 */
4#define APIC_DEFINITION 1
5#include <linux/threads.h>
6#include <linux/cpumask.h>
7#include <asm/smp.h>
8#include <asm/mpspec.h>
9#include <asm/genapic.h>
10#include <asm/fixmap.h>
11#include <asm/apicdef.h>
12#include <linux/kernel.h>
13#include <linux/string.h>
14#include <linux/smp.h>
15#include <linux/init.h>
16#include <asm/mach-summit/mach_apic.h>
17#include <asm/mach-summit/mach_apicdef.h>
18#include <asm/mach-summit/mach_ipi.h>
19#include <asm/mach-summit/mach_mpparse.h>
20
21static int probe_summit(void)
22{
23 /* probed later in mptable/ACPI hooks */
24 return 0;
25}
26
27struct genapic apic_summit = APIC_INIT("summit", probe_summit);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-22 14:24:33 -0500