x86: apic - unify disconnect_bsp_APIC

- just #ifdef added
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/apic_32.c

@@ -1420,6 +1420,7 @@ void __init connect_bsp_APIC(void)
  */
 void disconnect_bsp_APIC(int virt_wire_setup)
 {
+#ifdef CONFIG_X86_32
 	if (pic_mode) {
 		/*
 		 * Put the board back into PIC mode (has an effect only on
@@ -1431,9 +1432,12 @@ void disconnect_bsp_APIC(int virt_wire_setup)
 				"entering PIC mode.\n");
 		outb(0x70, 0x22);
 		outb(0x00, 0x23);
-	} else {
+		return;
+	}
+#endif
+
 	/* Go back to Virtual Wire compatibility mode */
-		unsigned long value;
+	unsigned int value;
 
 	/* For the spurious interrupt use vector F, and enable it */
 	value = apic_read(APIC_SPIV);
@@ -1460,18 +1464,16 @@ void disconnect_bsp_APIC(int virt_wire_setup)
 	}
 
 	/*
-		 * For LVT1 make it edge triggered, active high, nmi and
-		 * enabled
+	 * For LVT1 make it edge triggered, active high,
+	 * nmi and enabled
 	 */
 	value = apic_read(APIC_LVT1);
-		value &= ~(
-			APIC_MODE_MASK | APIC_SEND_PENDING |
+	value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING |
 			APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR |
 			APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED);
 	value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING;
 	value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_NMI);
 	apic_write(APIC_LVT1, value);
-	}
 }
 
 void __cpuinit generic_processor_info(int apicid, int version)

arch/x86/kernel/apic_64.c

@@ -1348,8 +1348,24 @@ void __init connect_bsp_APIC(void)
  */
 void disconnect_bsp_APIC(int virt_wire_setup)
 {
+#ifdef CONFIG_X86_32
+	if (pic_mode) {
+		/*
+		 * Put the board back into PIC mode (has an effect only on
+		 * certain older boards).  Note that APIC interrupts, including
+		 * IPIs, won't work beyond this point!  The only exception are
+		 * INIT IPIs.
+		 */
+		apic_printk(APIC_VERBOSE, "disabling APIC mode, "
+				"entering PIC mode.\n");
+		outb(0x70, 0x22);
+		outb(0x00, 0x23);
+		return;
+	}
+#endif
+
 	/* Go back to Virtual Wire compatibility mode */
-	unsigned long value;
+	unsigned int value;
 
 	/* For the spurious interrupt use vector F, and enable it */
 	value = apic_read(APIC_SPIV);
@@ -1375,7 +1391,10 @@ void disconnect_bsp_APIC(int virt_wire_setup)
 		apic_write(APIC_LVT0, APIC_LVT_MASKED);
 	}
 
-	/* For LVT1 make it edge triggered, active high, nmi and enabled */
+	/*
+	 * For LVT1 make it edge triggered, active high,
+	 * nmi and enabled
+	 */
 	value = apic_read(APIC_LVT1);
 	value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING |
 			APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR |