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 | } | ||
