diff options
Diffstat (limited to 'arch/ia64/kernel/acpi.c')
| -rw-r--r-- | arch/ia64/kernel/acpi.c | 88 |
1 files changed, 83 insertions, 5 deletions
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 72dfd9e7de0..9609f243e5d 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -11,6 +11,7 @@ * Copyright (C) 2001 Jenna Hall <jenna.s.hall@intel.com> * Copyright (C) 2001 Takayoshi Kochi <t-kochi@bq.jp.nec.com> * Copyright (C) 2002 Erich Focht <efocht@ess.nec.de> + * Copyright (C) 2004 Ashok Raj <ashok.raj@intel.com> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * @@ -67,6 +68,11 @@ EXPORT_SYMBOL(pm_power_off); unsigned char acpi_kbd_controller_present = 1; unsigned char acpi_legacy_devices; +static unsigned int __initdata acpi_madt_rev; + +unsigned int acpi_cpei_override; +unsigned int acpi_cpei_phys_cpuid; + #define MAX_SAPICS 256 u16 ia64_acpiid_to_sapicid[MAX_SAPICS] = { [0 ... MAX_SAPICS - 1] = -1 }; @@ -236,9 +242,7 @@ acpi_parse_iosapic (acpi_table_entry_header *header, const unsigned long end) if (BAD_MADT_ENTRY(iosapic, end)) return -EINVAL; - iosapic_init(iosapic->address, iosapic->global_irq_base); - - return 0; + return iosapic_init(iosapic->address, iosapic->global_irq_base); } @@ -267,10 +271,56 @@ acpi_parse_plat_int_src ( (plintsrc->flags.trigger == 1) ? IOSAPIC_EDGE : IOSAPIC_LEVEL); platform_intr_list[plintsrc->type] = vector; + if (acpi_madt_rev > 1) { + acpi_cpei_override = plintsrc->plint_flags.cpei_override_flag; + } + + /* + * Save the physical id, so we can check when its being removed + */ + acpi_cpei_phys_cpuid = ((plintsrc->id << 8) | (plintsrc->eid)) & 0xffff; + return 0; } +unsigned int can_cpei_retarget(void) +{ + extern int cpe_vector; + + /* + * Only if CPEI is supported and the override flag + * is present, otherwise return that its re-targettable + * if we are in polling mode. + */ + if (cpe_vector > 0 && !acpi_cpei_override) + return 0; + else + return 1; +} + +unsigned int is_cpu_cpei_target(unsigned int cpu) +{ + unsigned int logical_id; + + logical_id = cpu_logical_id(acpi_cpei_phys_cpuid); + + if (logical_id == cpu) + return 1; + else + return 0; +} + +void set_cpei_target_cpu(unsigned int cpu) +{ + acpi_cpei_phys_cpuid = cpu_physical_id(cpu); +} + +unsigned int get_cpei_target_cpu(void) +{ + return acpi_cpei_phys_cpuid; +} + static int __init acpi_parse_int_src_ovr ( acpi_table_entry_header *header, const unsigned long end) @@ -328,6 +378,8 @@ acpi_parse_madt (unsigned long phys_addr, unsigned long size) acpi_madt = (struct acpi_table_madt *) __va(phys_addr); + acpi_madt_rev = acpi_madt->header.revision; + /* remember the value for reference after free_initmem() */ #ifdef CONFIG_ITANIUM has_8259 = 1; /* Firmware on old Itanium systems is broken */ @@ -642,9 +694,11 @@ acpi_boot_init (void) if (smp_boot_data.cpu_phys_id[cpu] != hard_smp_processor_id()) node_cpuid[i++].phys_id = smp_boot_data.cpu_phys_id[cpu]; } - build_cpu_to_node_map(); # endif #endif +#ifdef CONFIG_ACPI_NUMA + build_cpu_to_node_map(); +#endif /* Make boot-up look pretty */ printk(KERN_INFO "%d CPUs available, %d CPUs total\n", available_cpus, total_cpus); return 0; @@ -772,7 +826,7 @@ EXPORT_SYMBOL(acpi_unmap_lsapic); #ifdef CONFIG_ACPI_NUMA -acpi_status __init +acpi_status __devinit acpi_map_iosapic (acpi_handle handle, u32 depth, void *context, void **ret) { struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; @@ -825,4 +879,28 @@ acpi_map_iosapic (acpi_handle handle, u32 depth, void *context, void **ret) return AE_OK; } #endif /* CONFIG_NUMA */ + +int +acpi_register_ioapic (acpi_handle handle, u64 phys_addr, u32 gsi_base) +{ + int err; + + if ((err = iosapic_init(phys_addr, gsi_base))) + return err; + +#if CONFIG_ACPI_NUMA + acpi_map_iosapic(handle, 0, NULL, NULL); +#endif /* CONFIG_ACPI_NUMA */ + + return 0; +} +EXPORT_SYMBOL(acpi_register_ioapic); + +int +acpi_unregister_ioapic (acpi_handle handle, u32 gsi_base) +{ + return iosapic_remove(gsi_base); +} +EXPORT_SYMBOL(acpi_unregister_ioapic); + #endif /* CONFIG_ACPI_BOOT */ |