diff options
Diffstat (limited to 'arch/i386/mach-generic/probe.c')
-rw-r--r-- | arch/i386/mach-generic/probe.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/arch/i386/mach-generic/probe.c b/arch/i386/mach-generic/probe.c deleted file mode 100644 index 74f3da634423..000000000000 --- a/arch/i386/mach-generic/probe.c +++ /dev/null | |||
@@ -1,125 +0,0 @@ | |||
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 | |||
18 | extern struct genapic apic_summit; | ||
19 | extern struct genapic apic_bigsmp; | ||
20 | extern struct genapic apic_es7000; | ||
21 | extern struct genapic apic_default; | ||
22 | |||
23 | struct genapic *genapic = &apic_default; | ||
24 | |||
25 | struct genapic *apic_probe[] __initdata = { | ||
26 | &apic_summit, | ||
27 | &apic_bigsmp, | ||
28 | &apic_es7000, | ||
29 | &apic_default, /* must be last */ | ||
30 | NULL, | ||
31 | }; | ||
32 | |||
33 | static int cmdline_apic __initdata; | ||
34 | static 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 | } | ||
52 | early_param("apic", parse_apic); | ||
53 | |||
54 | void __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 | |||
71 | void __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 | |||
90 | int __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 | |||
106 | int __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 | |||
122 | int hard_smp_processor_id(void) | ||
123 | { | ||
124 | return genapic->get_apic_id(*(unsigned long *)(APIC_BASE+APIC_ID)); | ||
125 | } | ||