x2apic_phys.rar_V2

#include <linux/threads.h> #include <linux/cpumask.h> #include <linux/string.h> #include <linux/kernel.h> #include <linux/ctype.h> #include <linux/dmar.h> #include <asm/smp.h> #include <asm/x2apic.h> int x2apic_phys; static struct apic apic_x2apic_phys; static int set_x2apic_phys_mode(char *arg) { x2apic_phys = 1; return 0; } early_param("x2apic_phys", set_x2apic_phys_mode); static bool x2apic_fadt_phys(void) { if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) && (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) { printk(KERN_DEBUG "System requires x2apic physical mode\n"); return true; } return false; } static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return x2apic_enabled() && (x2apic_phys || x2apic_fadt_phys()); } static void __x2apic_send_IPI_mask(const struct cpumask *mask, int vector, int apic_dest) { unsigned long query_cpu; unsigned long this_cpu; unsigned long flags; x2apic_wrmsr_fence(); local_irq_save(flags); this_cpu = smp_processor_id(); for_each_cpu(query_cpu, mask) { if (apic_dest == APIC_DEST_ALLBUT && this_cpu == query_cpu) continue; __x2apic_send_IPI_dest(per_cpu(x86_cpu_to_apicid, query_cpu), vector, APIC_DEST_PHYSICAL); } local_irq_restore(flags); } static void x2apic_send_IPI_mask(const struct cpumask *mask, int vector) { __x2apic_send_IPI_mask(mask, vector, APIC_DEST_ALLINC); } static void x2apic_send_IPI_mask_allbutself(const struct cpumask *mask, int vector) { __x2apic_send_IPI_mask(mask, vector, APIC_DEST_ALLBUT); } static void x2apic_send_IPI_allbutself(int vector) { __x2apic_send_IPI_mask(cpu_online_mask, vector, APIC_DEST_ALLBUT); } static void x2apic_send_IPI_all(int vector) { __x2apic_send_IPI_mask(cpu_online_mask, vector, APIC_DEST_ALLINC); } static void init_x2apic_ldr(void) { } static int x2apic_phys_probe(void) { if (x2apic_mode && (x2apic_phys || x2apic_fadt_phys())) return 1; return apic == &apic_x2apic_phys; } static struct apic apic_x2apic_phys = { .name = "physical x2apic", .probe = x2apic_phys_probe, .acpi_madt_oem_check = x2apic_acpi_madt_oem_check, .apic_id_valid = x2apic_apic_id_valid, .apic_id_registered = x2apic_apic_id_registered, .irq_delivery_mode = dest_Fixed, .irq_dest_mode = 0, /* physical */ .target_cpus = online_target_cpus, .disable_esr = 0, .dest_logical = 0, .check_apicid_used = NULL, .vector_allocation_domain = default_vector_allocation_domain, .init_apic_ldr = init_x2apic_ldr, .ioapic_phys_id_map = NULL, .setup_apic_routing = NULL, .cpu_present_to_apicid = default_cpu_present_to_apicid, .apicid_to_cpu_present = NULL, .check_phys_apicid_present = default_check_phys_apicid_present, .phys_pkg_id = x2apic_phys_pkg_id, .get_apic_id = x2apic_get_apic_id, .set_apic_id = x2apic_set_apic_id, .apic_id_mask = 0xFFFFFFFFu, .cpu_mask_to_apicid_and = default_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, .wait_for_init_deassert = false, .inquire_remote_apic = NULL, .read = native_apic_msr_read, .write = native_apic_msr_write, .eoi_write = native_apic_msr_eoi_write, .icr_read = native_x2apic_icr_read, .icr_write = native_x2apic_icr_write, .wait_icr_idle = native_x2apic_wait_icr_idle, .safe_wait_icr_idle = native_safe_x2apic_wait_icr_idle, }; apic_driver(apic_x2apic_phys);