diff options
Diffstat (limited to 'arch/x86/kernel/genx2apic_phys.c')
| -rw-r--r-- | arch/x86/kernel/genx2apic_phys.c | 125 |
1 files changed, 77 insertions, 48 deletions
diff --git a/arch/x86/kernel/genx2apic_phys.c b/arch/x86/kernel/genx2apic_phys.c index 21bcc0e098b..5cbae8aa040 100644 --- a/arch/x86/kernel/genx2apic_phys.c +++ b/arch/x86/kernel/genx2apic_phys.c @@ -55,8 +55,8 @@ static void __x2apic_send_IPI_dest(unsigned int apicid, int vector, static void x2apic_send_IPI_mask(const struct cpumask *mask, int vector) { - unsigned long flags; unsigned long query_cpu; + unsigned long flags; local_irq_save(flags); for_each_cpu(query_cpu, mask) { @@ -66,12 +66,12 @@ static void x2apic_send_IPI_mask(const struct cpumask *mask, int vector) local_irq_restore(flags); } -static void x2apic_send_IPI_mask_allbutself(const struct cpumask *mask, - int vector) +static void + x2apic_send_IPI_mask_allbutself(const struct cpumask *mask, int vector) { - unsigned long flags; - unsigned long query_cpu; unsigned long this_cpu = smp_processor_id(); + unsigned long query_cpu; + unsigned long flags; local_irq_save(flags); for_each_cpu(query_cpu, mask) { @@ -85,16 +85,17 @@ static void x2apic_send_IPI_mask_allbutself(const struct cpumask *mask, static void x2apic_send_IPI_allbutself(int vector) { - unsigned long flags; - unsigned long query_cpu; unsigned long this_cpu = smp_processor_id(); + unsigned long query_cpu; + unsigned long flags; local_irq_save(flags); - for_each_online_cpu(query_cpu) - if (query_cpu != this_cpu) - __x2apic_send_IPI_dest( - per_cpu(x86_cpu_to_apicid, query_cpu), - vector, APIC_DEST_PHYSICAL); + for_each_online_cpu(query_cpu) { + if (query_cpu == this_cpu) + continue; + __x2apic_send_IPI_dest(per_cpu(x86_cpu_to_apicid, query_cpu), + vector, APIC_DEST_PHYSICAL); + } local_irq_restore(flags); } @@ -110,21 +111,21 @@ static int x2apic_apic_id_registered(void) static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask) { - int cpu; - /* * We're using fixed IRQ delivery, can only return one phys APIC ID. * May as well be the first. */ - cpu = cpumask_first(cpumask); + int cpu = cpumask_first(cpumask); + if ((unsigned)cpu < nr_cpu_ids) return per_cpu(x86_cpu_to_apicid, cpu); else return BAD_APICID; } -static unsigned int x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask, - const struct cpumask *andmask) +static unsigned int +x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask, + const struct cpumask *andmask) { int cpu; @@ -132,31 +133,28 @@ static unsigned int x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask, * We're using fixed IRQ delivery, can only return one phys APIC ID. * May as well be the first. */ - for_each_cpu_and(cpu, cpumask, andmask) + for_each_cpu_and(cpu, cpumask, andmask) { if (cpumask_test_cpu(cpu, cpu_online_mask)) break; + } + if (cpu < nr_cpu_ids) return per_cpu(x86_cpu_to_apicid, cpu); + return BAD_APICID; } -static unsigned int get_apic_id(unsigned long x) +static unsigned int x2apic_phys_get_apic_id(unsigned long x) { - unsigned int id; - - id = x; - return id; + return x; } static unsigned long set_apic_id(unsigned int id) { - unsigned long x; - - x = id; - return x; + return id; } -static unsigned int phys_pkg_id(int index_msb) +static int x2apic_phys_pkg_id(int initial_apicid, int index_msb) { return current_cpu_data.initial_apicid >> index_msb; } @@ -168,27 +166,58 @@ static void x2apic_send_IPI_self(int vector) static void init_x2apic_ldr(void) { - return; } struct genapic apic_x2apic_phys = { - .name = "physical x2apic", - .acpi_madt_oem_check = x2apic_acpi_madt_oem_check, - .int_delivery_mode = dest_Fixed, - .int_dest_mode = (APIC_DEST_PHYSICAL != 0), - .target_cpus = x2apic_target_cpus, - .vector_allocation_domain = x2apic_vector_allocation_domain, - .apic_id_registered = x2apic_apic_id_registered, - .init_apic_ldr = init_x2apic_ldr, - .send_IPI_all = x2apic_send_IPI_all, - .send_IPI_allbutself = x2apic_send_IPI_allbutself, - .send_IPI_mask = x2apic_send_IPI_mask, - .send_IPI_mask_allbutself = x2apic_send_IPI_mask_allbutself, - .send_IPI_self = x2apic_send_IPI_self, - .cpu_mask_to_apicid = x2apic_cpu_mask_to_apicid, - .cpu_mask_to_apicid_and = x2apic_cpu_mask_to_apicid_and, - .phys_pkg_id = phys_pkg_id, - .get_apic_id = get_apic_id, - .set_apic_id = set_apic_id, - .apic_id_mask = (0xFFFFFFFFu), + + .name = "physical x2apic", + .probe = NULL, + .acpi_madt_oem_check = x2apic_acpi_madt_oem_check, + .apic_id_registered = x2apic_apic_id_registered, + + .irq_delivery_mode = dest_Fixed, + .irq_dest_mode = 0, /* physical */ + + .target_cpus = x2apic_target_cpus, + .disable_esr = 0, + .dest_logical = 0, + .check_apicid_used = NULL, + .check_apicid_present = NULL, + + .vector_allocation_domain = x2apic_vector_allocation_domain, + .init_apic_ldr = init_x2apic_ldr, + + .ioapic_phys_id_map = NULL, + .setup_apic_routing = NULL, + .multi_timer_check = NULL, + .apicid_to_node = NULL, + .cpu_to_logical_apicid = NULL, + .cpu_present_to_apicid = default_cpu_present_to_apicid, + .apicid_to_cpu_present = NULL, + .setup_portio_remap = NULL, + .check_phys_apicid_present = default_check_phys_apicid_present, + .enable_apic_mode = NULL, + .phys_pkg_id = x2apic_phys_pkg_id, + .mps_oem_check = NULL, + + .get_apic_id = x2apic_phys_get_apic_id, + .set_apic_id = set_apic_id, + .apic_id_mask = 0xFFFFFFFFu, + + .cpu_mask_to_apicid = x2apic_cpu_mask_to_apicid, + .cpu_mask_to_apicid_and = x2apic_cpu_mask_to_apicid_and, + + .send_IPI_mask = x2apic_send_IPI_mask, + .send_IPI_mask_allbutself = x2apic_send_IPI_mask_allbutself, + .send_IPI_allbutself = x2apic_send_IPI_allbutself, + .send_IPI_all = x2apic_send_IPI_all, + .send_IPI_self = x2apic_send_IPI_self, + + .wakeup_cpu = NULL, + .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW, + .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH, + .wait_for_init_deassert = NULL, + .smp_callin_clear_local_apic = NULL, + .store_NMI_vector = NULL, + .inquire_remote_apic = NULL, }; 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