Merge branch 'acpi-processor'

* acpi-processor:
  ACPI: Move BAD_MADT_ENTRY() to linux/acpi.h
  ACPI / processor: Make it possible to get APIC ID via GIC
  ACPI / processor: Build idle_boot_override on x86 and ia64
  ACPI / processor: Use ACPI_PROCESSOR_DEVICE_HID instead of "ACPI0007"
  ACPI / processor: Fix acpi_processor_eval_pdc() return value type

1 files changed, 57 insertions, 21 deletions

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 57e0769656c6..86d73d5d503f 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -18,24 +18,6 @@
 #define _COMPONENT              ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("processor_core");
 
-static int __init set_no_mwait(const struct dmi_system_id *id)
-{
-        printk(KERN_NOTICE PREFIX "%s detected - "
-                "disabling mwait for CPU C-states\n", id->ident);
-        boot_option_idle_override = IDLE_NOMWAIT;
-        return 0;
-}
-
-static struct dmi_system_id processor_idle_dmi_table[] __initdata = {
-        {
-        set_no_mwait, "Extensa 5220", {
-        DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
-        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
-        DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
-        DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL},
-        {},
-};
-
 static int map_lapic_id(struct acpi_subtable_header *entry,
                  u32 acpi_id, int *apic_id)
 {
@@ -88,6 +70,28 @@ static int map_lsapic_id(struct acpi_subtable_header *entry,
         return 0;
 }
 
+static int map_gic_id(struct acpi_subtable_header *entry,
+                int device_declaration, u32 acpi_id, int *apic_id)
+{
+        struct acpi_madt_generic_interrupt *gic =
+                (struct acpi_madt_generic_interrupt *)entry;
+
+        if (!(gic->flags & ACPI_MADT_ENABLED))
+                return -ENODEV;
+
+        /*
+         * In the GIC interrupt model, logical processors are
+         * required to have a Processor Device object in the DSDT,
+         * so we should check device_declaration here
+         */
+        if (device_declaration && (gic->uid == acpi_id)) {
+                *apic_id = gic->gic_id;
+                return 0;
+        }
+
+        return -EINVAL;
+}
+
 static int map_madt_entry(int type, u32 acpi_id)
 {
         unsigned long madt_end, entry;
@@ -123,6 +127,9 @@ static int map_madt_entry(int type, u32 acpi_id)
                 } else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) {
                         if (!map_lsapic_id(header, type, acpi_id, &apic_id))
                                 break;
+                } else if (header->type == ACPI_MADT_TYPE_GENERIC_INTERRUPT) {
+                        if (!map_gic_id(header, type, acpi_id, &apic_id))
+                                break;
                 }
                 entry += header->length;
         }
@@ -153,6 +160,8 @@ static int map_mat_entry(acpi_handle handle, int type, u32 acpi_id)
                 map_lapic_id(header, acpi_id, &apic_id);
         } else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) {
                 map_lsapic_id(header, type, acpi_id, &apic_id);
+        } else if (header->type == ACPI_MADT_TYPE_GENERIC_INTERRUPT) {
+                map_gic_id(header, type, acpi_id, &apic_id);
         }
 
 exit:
@@ -322,7 +331,7 @@ static struct acpi_object_list *acpi_processor_alloc_pdc(void)
  * _PDC is required for a BIOS-OS handshake for most of the newer
  * ACPI processor features.
  */
-static int
+static acpi_status
 acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in)
 {
         acpi_status status = AE_OK;
@@ -378,16 +387,43 @@ early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
         return AE_OK;
 }
 
-void __init acpi_early_processor_set_pdc(void)
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+static int __init set_no_mwait(const struct dmi_system_id *id)
+{
+        pr_notice(PREFIX "%s detected - disabling mwait for CPU C-states\n",
+                  id->ident);
+        boot_option_idle_override = IDLE_NOMWAIT;
+        return 0;
+}
+
+static struct dmi_system_id processor_idle_dmi_table[] __initdata = {
+        {
+        set_no_mwait, "Extensa 5220", {
+        DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+        DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
+        DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL},
+        {},
+};
+
+static void __init processor_dmi_check(void)
 {
         /*
          * Check whether the system is DMI table. If yes, OSPM
          * should not use mwait for CPU-states.
          */
         dmi_check_system(processor_idle_dmi_table);
+}
+#else
+static inline void processor_dmi_check(void) {}
+#endif
+
+void __init acpi_early_processor_set_pdc(void)
+{
+        processor_dmi_check();
 
         acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
                             ACPI_UINT32_MAX,
                             early_init_pdc, NULL, NULL, NULL);
-        acpi_get_devices("ACPI0007", early_init_pdc, NULL, NULL);
+        acpi_get_devices(ACPI_PROCESSOR_DEVICE_HID, early_init_pdc, NULL, NULL);
 }