diff options
Diffstat (limited to 'arch/x86/mach-generic/probe.c')
-rw-r--r-- | arch/x86/mach-generic/probe.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/arch/x86/mach-generic/probe.c b/arch/x86/mach-generic/probe.c deleted file mode 100644 index 15a38daef1a8..000000000000 --- a/arch/x86/mach-generic/probe.c +++ /dev/null | |||
@@ -1,152 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright 2003 Andi Kleen, SuSE Labs. | ||
3 | * Subject to the GNU Public License, v.2 | ||
4 | * | ||
5 | * Generic x86 APIC driver probe layer. | ||
6 | */ | ||
7 | #include <linux/threads.h> | ||
8 | #include <linux/cpumask.h> | ||
9 | #include <linux/string.h> | ||
10 | #include <linux/kernel.h> | ||
11 | #include <linux/ctype.h> | ||
12 | #include <linux/init.h> | ||
13 | #include <linux/errno.h> | ||
14 | #include <asm/fixmap.h> | ||
15 | #include <asm/mpspec.h> | ||
16 | #include <asm/apicdef.h> | ||
17 | #include <asm/genapic.h> | ||
18 | #include <asm/setup.h> | ||
19 | |||
20 | extern struct genapic apic_numaq; | ||
21 | extern struct genapic apic_summit; | ||
22 | extern struct genapic apic_bigsmp; | ||
23 | extern struct genapic apic_es7000; | ||
24 | extern struct genapic apic_default; | ||
25 | |||
26 | struct genapic *genapic = &apic_default; | ||
27 | |||
28 | static struct genapic *apic_probe[] __initdata = { | ||
29 | #ifdef CONFIG_X86_NUMAQ | ||
30 | &apic_numaq, | ||
31 | #endif | ||
32 | #ifdef CONFIG_X86_SUMMIT | ||
33 | &apic_summit, | ||
34 | #endif | ||
35 | #ifdef CONFIG_X86_BIGSMP | ||
36 | &apic_bigsmp, | ||
37 | #endif | ||
38 | #ifdef CONFIG_X86_ES7000 | ||
39 | &apic_es7000, | ||
40 | #endif | ||
41 | &apic_default, /* must be last */ | ||
42 | NULL, | ||
43 | }; | ||
44 | |||
45 | static int cmdline_apic __initdata; | ||
46 | static int __init parse_apic(char *arg) | ||
47 | { | ||
48 | int i; | ||
49 | |||
50 | if (!arg) | ||
51 | return -EINVAL; | ||
52 | |||
53 | for (i = 0; apic_probe[i]; i++) { | ||
54 | if (!strcmp(apic_probe[i]->name, arg)) { | ||
55 | genapic = apic_probe[i]; | ||
56 | cmdline_apic = 1; | ||
57 | return 0; | ||
58 | } | ||
59 | } | ||
60 | |||
61 | if (x86_quirks->update_genapic) | ||
62 | x86_quirks->update_genapic(); | ||
63 | |||
64 | /* Parsed again by __setup for debug/verbose */ | ||
65 | return 0; | ||
66 | } | ||
67 | early_param("apic", parse_apic); | ||
68 | |||
69 | void __init generic_bigsmp_probe(void) | ||
70 | { | ||
71 | #ifdef CONFIG_X86_BIGSMP | ||
72 | /* | ||
73 | * This routine is used to switch to bigsmp mode when | ||
74 | * - There is no apic= option specified by the user | ||
75 | * - generic_apic_probe() has chosen apic_default as the sub_arch | ||
76 | * - we find more than 8 CPUs in acpi LAPIC listing with xAPIC support | ||
77 | */ | ||
78 | |||
79 | if (!cmdline_apic && genapic == &apic_default) { | ||
80 | if (apic_bigsmp.probe()) { | ||
81 | genapic = &apic_bigsmp; | ||
82 | if (x86_quirks->update_genapic) | ||
83 | x86_quirks->update_genapic(); | ||
84 | printk(KERN_INFO "Overriding APIC driver with %s\n", | ||
85 | genapic->name); | ||
86 | } | ||
87 | } | ||
88 | #endif | ||
89 | } | ||
90 | |||
91 | void __init generic_apic_probe(void) | ||
92 | { | ||
93 | if (!cmdline_apic) { | ||
94 | int i; | ||
95 | for (i = 0; apic_probe[i]; i++) { | ||
96 | if (apic_probe[i]->probe()) { | ||
97 | genapic = apic_probe[i]; | ||
98 | break; | ||
99 | } | ||
100 | } | ||
101 | /* Not visible without early console */ | ||
102 | if (!apic_probe[i]) | ||
103 | panic("Didn't find an APIC driver"); | ||
104 | |||
105 | if (x86_quirks->update_genapic) | ||
106 | x86_quirks->update_genapic(); | ||
107 | } | ||
108 | printk(KERN_INFO "Using APIC driver %s\n", genapic->name); | ||
109 | } | ||
110 | |||
111 | /* These functions can switch the APIC even after the initial ->probe() */ | ||
112 | |||
113 | int __init mps_oem_check(struct mpc_table *mpc, char *oem, char *productid) | ||
114 | { | ||
115 | int i; | ||
116 | for (i = 0; apic_probe[i]; ++i) { | ||
117 | if (apic_probe[i]->mps_oem_check(mpc, oem, productid)) { | ||
118 | if (!cmdline_apic) { | ||
119 | genapic = apic_probe[i]; | ||
120 | if (x86_quirks->update_genapic) | ||
121 | x86_quirks->update_genapic(); | ||
122 | printk(KERN_INFO "Switched to APIC driver `%s'.\n", | ||
123 | genapic->name); | ||
124 | } | ||
125 | return 1; | ||
126 | } | ||
127 | } | ||
128 | return 0; | ||
129 | } | ||
130 | |||
131 | int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id) | ||
132 | { | ||
133 | int i; | ||
134 | for (i = 0; apic_probe[i]; ++i) { | ||
135 | if (apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id)) { | ||
136 | if (!cmdline_apic) { | ||
137 | genapic = apic_probe[i]; | ||
138 | if (x86_quirks->update_genapic) | ||
139 | x86_quirks->update_genapic(); | ||
140 | printk(KERN_INFO "Switched to APIC driver `%s'.\n", | ||
141 | genapic->name); | ||
142 | } | ||
143 | return 1; | ||
144 | } | ||
145 | } | ||
146 | return 0; | ||
147 | } | ||
148 | |||
149 | int hard_smp_processor_id(void) | ||
150 | { | ||
151 | return genapic->get_apic_id(*(unsigned long *)(APIC_BASE+APIC_ID)); | ||
152 | } | ||