2 * Default generic APIC driver. This handles up to 8 CPUs.
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>
19 static void default_vector_allocation_domain(int cpu, struct cpumask *retmask)
22 * Careful. Some cpus do not strictly honor the set of cpus
23 * specified in the interrupt destination when using lowest
24 * priority interrupt delivery mode.
26 * In particular there was a hyperthreading cpu observed to
27 * deliver interrupts to the wrong hyperthread when only one
28 * hyperthread was specified in the interrupt desitination.
30 *retmask = (cpumask_t) { { [0] = APIC_ALL_CPUS } };
33 /* should be called last. */
34 static int probe_default(void)
39 struct genapic apic_default = {
42 .probe = probe_default,
43 .acpi_madt_oem_check = NULL,
44 .apic_id_registered = default_apic_id_registered,
46 .irq_delivery_mode = dest_LowestPrio,
47 /* logical delivery broadcast to all CPUs: */
50 .target_cpus = default_target_cpus,
52 .dest_logical = APIC_DEST_LOGICAL,
53 .check_apicid_used = default_check_apicid_used,
54 .check_apicid_present = default_check_apicid_present,
56 .vector_allocation_domain = default_vector_allocation_domain,
57 .init_apic_ldr = default_init_apic_ldr,
59 .ioapic_phys_id_map = default_ioapic_phys_id_map,
60 .setup_apic_routing = default_setup_apic_routing,
61 .multi_timer_check = NULL,
62 .apicid_to_node = default_apicid_to_node,
63 .cpu_to_logical_apicid = default_cpu_to_logical_apicid,
64 .cpu_present_to_apicid = default_cpu_present_to_apicid,
65 .apicid_to_cpu_present = default_apicid_to_cpu_present,
66 .setup_portio_remap = NULL,
67 .check_phys_apicid_present = default_check_phys_apicid_present,
68 .enable_apic_mode = NULL,
69 .phys_pkg_id = default_phys_pkg_id,
70 .mps_oem_check = NULL,
72 .get_apic_id = default_get_apic_id,
74 .apic_id_mask = 0x0F << 24,
76 .cpu_mask_to_apicid = default_cpu_mask_to_apicid,
77 .cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
79 .send_IPI_mask = default_send_IPI_mask,
80 .send_IPI_mask_allbutself = NULL,
81 .send_IPI_allbutself = default_send_IPI_allbutself,
82 .send_IPI_all = default_send_IPI_all,
83 .send_IPI_self = NULL,
86 .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
87 .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
89 .wait_for_init_deassert = default_wait_for_init_deassert,
91 .smp_callin_clear_local_apic = NULL,
92 .store_NMI_vector = NULL,
93 .inquire_remote_apic = default_inquire_remote_apic,