vserver 2.0 rc7

[linux-2.6.git] / arch / x86_64 / kernel / io_apic.c

diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index a81bc8f..afd87e6 100644 (file)
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -37,11 +37,14 @@
 #include <asm/desc.h>
 #include <asm/proto.h>
 #include <asm/mach_apic.h>
+#include <asm/acpi.h>
 
 #define __apicdebuginit  __init
 
 int sis_apic_bug; /* not actually supported, dummy for compile */
 
+static int no_timer_check;
+
 static DEFINE_SPINLOCK(ioapic_lock);
 
 /*
@@ -147,7 +150,7 @@ static void unmask_IO_APIC_irq (unsigned int irq)
        spin_unlock_irqrestore(&ioapic_lock, flags);
 }
 
-void clear_IO_APIC_pin(unsigned int apic, unsigned int pin)
+static void clear_IO_APIC_pin(unsigned int apic, unsigned int pin)
 {
        struct IO_APIC_route_entry entry;
        unsigned long flags;
@@ -185,8 +188,8 @@ static void clear_IO_APIC (void)
  */
 
 #define MAX_PIRQS 8
-int pirq_entries [MAX_PIRQS];
-int pirqs_enabled;
+static int pirq_entries [MAX_PIRQS];
+static int pirqs_enabled;
 int skip_ioapic_setup;
 int ioapic_force;
 
@@ -707,7 +710,7 @@ static inline void ioapic_register_intr(int irq, int vector, unsigned long trigg
        }
 }
 
-void __init setup_IO_APIC_irqs(void)
+static void __init setup_IO_APIC_irqs(void)
 {
        struct IO_APIC_route_entry entry;
        int apic, pin, idx, irq, first_notcon = 1, vector;
@@ -776,7 +779,7 @@ void __init setup_IO_APIC_irqs(void)
  * Set up the 8259A-master output pin as broadcast to all
  * CPUs.
  */
-void __init setup_ExtINT_IRQ0_pin(unsigned int pin, int vector)
+static void __init setup_ExtINT_IRQ0_pin(unsigned int pin, int vector)
 {
        struct IO_APIC_route_entry entry;
        unsigned long flags;
@@ -948,6 +951,8 @@ void __apicdebuginit print_IO_APIC(void)
        return;
 }
 
+#if 0
+
 static __apicdebuginit void print_APIC_bitfield (int base)
 {
        unsigned int v;
@@ -1090,6 +1095,8 @@ void __apicdebuginit print_PIC(void)
        printk(KERN_DEBUG "... PIC ELCR: %04x\n", v);
 }
 
+#endif  /*  0  */
+
 static void __init enable_IO_APIC(void)
 {
        union IO_APIC_reg_01 reg_01;
@@ -1597,13 +1604,12 @@ static inline void check_timer(void)
                 * Ok, does IRQ0 through the IOAPIC work?
                 */
                unmask_IO_APIC_irq(0);
-               if (timer_irq_works()) {
+               if (!no_timer_check && timer_irq_works()) {
                        nmi_watchdog_default();
                        if (nmi_watchdog == NMI_IO_APIC) {
                                disable_8259A_irq(0);
                                setup_nmi();
                                enable_8259A_irq(0);
-                               check_nmi_watchdog();
                        }
                        return;
                }
@@ -1623,7 +1629,6 @@ static inline void check_timer(void)
                        nmi_watchdog_default();
                        if (nmi_watchdog == NMI_IO_APIC) {
                                setup_nmi();
-                               check_nmi_watchdog();
                        }
                        return;
                }
@@ -1669,6 +1674,13 @@ static inline void check_timer(void)
        panic("IO-APIC + timer doesn't work! Try using the 'noapic' kernel parameter\n");
 }
 
+static int __init notimercheck(char *s)
+{
+       no_timer_check = 1;
+       return 1;
+}
+__setup("no_timer_check", notimercheck);
+
 /*
  *
  * IRQ's that are handled by the PIC in the MPS IOAPIC case.
@@ -1708,7 +1720,7 @@ struct sysfs_ioapic_data {
 };
 static struct sysfs_ioapic_data * mp_ioapic_data[MAX_IO_APICS];
 
-static int ioapic_suspend(struct sys_device *dev, u32 state)
+static int ioapic_suspend(struct sys_device *dev, pm_message_t state)
 {
        struct IO_APIC_route_entry *entry;
        struct sysfs_ioapic_data *data;
@@ -1802,76 +1814,6 @@ device_initcall(ioapic_init_sysfs);
 
 #define IO_APIC_MAX_ID         0xFE
 
-int __init io_apic_get_unique_id (int ioapic, int apic_id)
-{
-       union IO_APIC_reg_00 reg_00;
-       static physid_mask_t apic_id_map;
-       unsigned long flags;
-       int i = 0;
-
-       /*
-        * The P4 platform supports up to 256 APIC IDs on two separate APIC 
-        * buses (one for LAPICs, one for IOAPICs), where predecessors only 
-        * supports up to 16 on one shared APIC bus.
-        * 
-        * TBD: Expand LAPIC/IOAPIC support on P4-class systems to take full
-        *      advantage of new APIC bus architecture.
-        */
-
-       if (physids_empty(apic_id_map))
-               apic_id_map = phys_cpu_present_map;
-
-       spin_lock_irqsave(&ioapic_lock, flags);
-       reg_00.raw = io_apic_read(ioapic, 0);
-       spin_unlock_irqrestore(&ioapic_lock, flags);
-
-       if (apic_id >= IO_APIC_MAX_ID) {
-               apic_printk(APIC_QUIET, KERN_WARNING "IOAPIC[%d]: Invalid apic_id %d, trying "
-                       "%d\n", ioapic, apic_id, reg_00.bits.ID);
-               apic_id = reg_00.bits.ID;
-       }
-
-       /*
-        * Every APIC in a system must have a unique ID or we get lots of nice 
-        * 'stuck on smp_invalidate_needed IPI wait' messages.
-        */
-       if (physid_isset(apic_id, apic_id_map)) {
-
-               for (i = 0; i < IO_APIC_MAX_ID; i++) {
-                       if (!physid_isset(i, apic_id_map))
-                               break;
-               }
-
-               if (i == IO_APIC_MAX_ID)
-                       panic("Max apic_id exceeded!\n");
-
-               apic_printk(APIC_VERBOSE, KERN_WARNING "IOAPIC[%d]: apic_id %d already used, "
-                       "trying %d\n", ioapic, apic_id, i);
-
-               apic_id = i;
-       } 
-
-       physid_set(apic_id, apic_id_map);
-
-       if (reg_00.bits.ID != apic_id) {
-               reg_00.bits.ID = apic_id;
-
-               spin_lock_irqsave(&ioapic_lock, flags);
-               io_apic_write(ioapic, 0, reg_00.raw);
-               reg_00.raw = io_apic_read(ioapic, 0);
-               spin_unlock_irqrestore(&ioapic_lock, flags);
-
-               /* Sanity check */
-               if (reg_00.bits.ID != apic_id)
-                       panic("IOAPIC[%d]: Unable change apic_id!\n", ioapic);
-       }
-
-       apic_printk(APIC_VERBOSE,KERN_INFO "IOAPIC[%d]: Assigned apic_id %d\n", ioapic, apic_id);
-
-       return apic_id;
-}
-
-
 int __init io_apic_get_version (int ioapic)
 {
        union IO_APIC_reg_01    reg_01;