1 files changed, 30 insertions, 23 deletions

diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index afd09924094e..dd8748c45529 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -2,6 +2,7 @@
 /*
  * Architecture specific OF callbacks.
  */
+#include <linux/acpi.h>
 #include <linux/export.h>
 #include <linux/io.h>
 #include <linux/interrupt.h>
@@ -24,6 +25,7 @@
 #include <asm/pci_x86.h>
 #include <asm/setup.h>
 #include <asm/i8259.h>
+#include <asm/numa.h>
 #include <asm/prom.h>
 
 __initdata u64 initial_dtb;
@@ -82,7 +84,7 @@ static int x86_of_pci_irq_enable(struct pci_dev *dev)
 
 	ret = pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
 	if (ret)
-		return ret;
+		return pcibios_err_to_errno(ret);
 	if (!pin)
 		return 0;
 
@@ -136,7 +138,8 @@ static void __init dtb_cpu_setup(void)
 			pr_warn("%pOF: missing local APIC ID\n", dn);
 			continue;
 		}
-		generic_processor_info(apic_id);
+		topology_register_apic(apic_id, CPU_ACPIID_INVALID, true);
+		set_apicid_to_node(apic_id, of_node_to_nid(dn));
 	}
 }
 
@@ -277,36 +280,40 @@ static void __init dtb_apic_setup(void)
 	dtb_ioapic_setup();
 }
 
-#ifdef CONFIG_OF_EARLY_FLATTREE
+static void __init x86_dtb_parse_smp_config(void)
+{
+	if (!of_have_populated_dt())
+		return;
+
+	dtb_setup_hpet();
+	dtb_apic_setup();
+}
+
 void __init x86_flattree_get_config(void)
 {
+#ifdef CONFIG_OF_EARLY_FLATTREE
 	u32 size, map_len;
 	void *dt;
 
-	if (!initial_dtb)
-		return;
+	if (initial_dtb) {
+		map_len = max(PAGE_SIZE - (initial_dtb & ~PAGE_MASK), (u64)128);
 
-	map_len = max(PAGE_SIZE - (initial_dtb & ~PAGE_MASK), (u64)128);
+		dt = early_memremap(initial_dtb, map_len);
+		size = fdt_totalsize(dt);
+		if (map_len < size) {
+			early_memunmap(dt, map_len);
+			dt = early_memremap(initial_dtb, size);
+			map_len = size;
+		}
 
-	dt = early_memremap(initial_dtb, map_len);
-	size = fdt_totalsize(dt);
-	if (map_len < size) {
-		early_memunmap(dt, map_len);
-		dt = early_memremap(initial_dtb, size);
-		map_len = size;
+		early_init_dt_verify(dt, __pa(dt));
 	}
 
-	early_init_dt_verify(dt);
 	unflatten_and_copy_device_tree();
-	early_memunmap(dt, map_len);
-}
-#endif
 
-void __init x86_dtb_init(void)
-{
-	if (!of_have_populated_dt())
-		return;
-
-	dtb_setup_hpet();
-	dtb_apic_setup();
+	if (initial_dtb)
+		early_memunmap(dt, map_len);
+#endif
+	if (acpi_disabled && of_have_populated_dt())
+		x86_init.mpparse.parse_smp_cfg = x86_dtb_parse_smp_config;
 }