- 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_QUIET, "disabling APIC mode, entering PIC mode.\n");
- outb(0x70, 0x22);
- outb(0x00, 0x23);
- }
- else {
- /* Go back to Virtual Wire compatibility mode */
- unsigned long value;
-
- /* For the spurious interrupt use vector F, and enable it */
- value = apic_read(APIC_SPIV);
- value &= ~APIC_VECTOR_MASK;
- value |= APIC_SPIV_APIC_ENABLED;
- value |= 0xf;
- apic_write(APIC_SPIV, value);
-
- if (!virt_wire_setup) {
- /* For LVT0 make it edge triggered, active high, external and enabled */
- value = apic_read(APIC_LVT0);
- 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_EXTINT);
- apic_write(APIC_LVT0, value);
- }
- else {
- /* Disable LVT0 */
- apic_write(APIC_LVT0, APIC_LVT_MASKED);
- }
+ /* Go back to Virtual Wire compatibility mode */
+ unsigned long value;
+
+ /* For the spurious interrupt use vector F, and enable it */
+ value = apic_read(APIC_SPIV);
+ value &= ~APIC_VECTOR_MASK;
+ value |= APIC_SPIV_APIC_ENABLED;
+ value |= 0xf;
+ apic_write(APIC_SPIV, value);