5 files changed, 63 insertions, 53 deletions

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 159740decc41..a34601f52987 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -36,6 +36,7 @@
 #include <linux/mm.h>
 
 #include <asm/perf_counter.h>
+#include <asm/x86_init.h>
 #include <asm/pgalloc.h>
 #include <asm/atomic.h>
 #include <asm/mpspec.h>
@@ -1709,7 +1710,7 @@ int __init APIC_init_uniprocessor(void)
         localise_nmi_watchdog();
 #endif
 
-        setup_boot_clock();
+        x86_init.timers.setup_percpu_clockev();
 #ifdef CONFIG_X86_64
         check_nmi_watchdog();
 #endif
diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index 676cdac385c0..77a06413b6b2 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -112,7 +112,7 @@ static physid_mask_t bigsmp_ioapic_phys_id_map(physid_mask_t phys_map)
         return physids_promote(0xFFL);
 }
 
-static int bigsmp_check_phys_apicid_present(int boot_cpu_physical_apicid)
+static int bigsmp_check_phys_apicid_present(int phys_apicid)
 {
         return 1;
 }
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 3c8f9e75d038..809e1cf86d6b 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -96,6 +96,11 @@ struct mpc_intsrc mp_irqs[MAX_IRQ_SOURCES];
 /* # of MP IRQ source entries */
 int mp_irq_entries;
 
+/* Number of legacy interrupts */
+static int nr_legacy_irqs __read_mostly = NR_IRQS_LEGACY;
+/* GSI interrupts */
+static int nr_irqs_gsi = NR_IRQS_LEGACY;
+
 #if defined (CONFIG_MCA) || defined (CONFIG_EISA)
 int mp_bus_id_to_type[MAX_MP_BUSSES];
 #endif
@@ -173,6 +178,12 @@ static struct irq_cfg irq_cfgx[NR_IRQS] = {
         [15] = { .vector = IRQ15_VECTOR, },
 };
 
+void __init io_apic_disable_legacy(void)
+{
+        nr_legacy_irqs = 0;
+        nr_irqs_gsi = 0;
+}
+
 int __init arch_early_irq_init(void)
 {
         struct irq_cfg *cfg;
@@ -190,7 +201,7 @@ int __init arch_early_irq_init(void)
                 desc->chip_data = &cfg[i];
                 zalloc_cpumask_var_node(&cfg[i].domain, GFP_NOWAIT, node);
                 zalloc_cpumask_var_node(&cfg[i].old_domain, GFP_NOWAIT, node);
-                if (i < NR_IRQS_LEGACY)
+                if (i < nr_legacy_irqs)
                         cpumask_setall(cfg[i].domain);
         }
 
@@ -867,7 +878,7 @@ static int __init find_isa_irq_apic(int irq, int type)
  */
 static int EISA_ELCR(unsigned int irq)
 {
-        if (irq < NR_IRQS_LEGACY) {
+        if (irq < nr_legacy_irqs) {
                 unsigned int port = 0x4d0 + (irq >> 3);
                 return (inb(port) >> (irq & 7)) & 1;
         }
@@ -1464,7 +1475,7 @@ static void setup_IO_APIC_irq(int apic_id, int pin, unsigned int irq, struct irq
         }
 
         ioapic_register_intr(irq, desc, trigger);
-        if (irq < NR_IRQS_LEGACY)
+        if (irq < nr_legacy_irqs)
                 disable_8259A_irq(irq);
 
         ioapic_write_entry(apic_id, pin, entry);
@@ -1831,7 +1842,7 @@ __apicdebuginit(void) print_PIC(void)
         unsigned int v;
         unsigned long flags;
 
-        if (apic_verbosity == APIC_QUIET)
+        if (apic_verbosity == APIC_QUIET || !nr_legacy_irqs)
                 return;
 
         printk(KERN_DEBUG "\nprinting PIC contents\n");
@@ -1894,6 +1905,10 @@ void __init enable_IO_APIC(void)
                 spin_unlock_irqrestore(&ioapic_lock, flags);
                 nr_ioapic_registers[apic] = reg_01.bits.entries+1;
         }
+
+        if (!nr_legacy_irqs)
+                return;
+
         for(apic = 0; apic < nr_ioapics; apic++) {
                 int pin;
                 /* See if any of the pins is in ExtINT mode */
@@ -1948,6 +1963,9 @@ void disable_IO_APIC(void)
          */
         clear_IO_APIC();
 
+        if (!nr_legacy_irqs)
+                return;
+
         /*
          * If the i8259 is routed through an IOAPIC
          * Put that IOAPIC in virtual wire mode
@@ -1994,7 +2012,7 @@ void disable_IO_APIC(void)
  * by Matt Domsch <Matt_Domsch@dell.com>  Tue Dec 21 12:25:05 CST 1999
  */
 
-static void __init setup_ioapic_ids_from_mpc(void)
+void __init setup_ioapic_ids_from_mpc(void)
 {
         union IO_APIC_reg_00 reg_00;
         physid_mask_t phys_id_present_map;
@@ -2003,9 +2021,8 @@ static void __init setup_ioapic_ids_from_mpc(void)
         unsigned char old_id;
         unsigned long flags;
 
-        if (x86_quirks->setup_ioapic_ids && x86_quirks->setup_ioapic_ids())
+        if (acpi_ioapic)
                 return;
-
         /*
          * Don't check I/O APIC IDs for xAPIC systems.  They have
          * no meaning without the serial APIC bus.
@@ -2179,7 +2196,7 @@ static unsigned int startup_ioapic_irq(unsigned int irq)
         struct irq_cfg *cfg;
 
         spin_lock_irqsave(&ioapic_lock, flags);
-        if (irq < NR_IRQS_LEGACY) {
+        if (irq < nr_legacy_irqs) {
                 disable_8259A_irq(irq);
                 if (i8259A_irq_pending(irq))
                         was_pending = 1;
@@ -2657,7 +2674,7 @@ static inline void init_IO_APIC_traps(void)
                          * so default to an old-fashioned 8259
                          * interrupt if we can..
                          */
-                        if (irq < NR_IRQS_LEGACY)
+                        if (irq < nr_legacy_irqs)
                                 make_8259A_irq(irq);
                         else
                                 /* Strange. Oh, well.. */
@@ -2993,7 +3010,7 @@ out:
  * the I/O APIC in all cases now.  No actual device should request
  * it anyway.  --macro
  */
-#define PIC_IRQS        (1 << PIC_CASCADE_IR)
+#define PIC_IRQS        (1UL << PIC_CASCADE_IR)
 
 void __init setup_IO_APIC(void)
 {
@@ -3001,21 +3018,19 @@ void __init setup_IO_APIC(void)
         /*
          * calling enable_IO_APIC() is moved to setup_local_APIC for BP
          */
-
-        io_apic_irqs = ~PIC_IRQS;
+        io_apic_irqs = nr_legacy_irqs ? ~PIC_IRQS : ~0UL;
 
         apic_printk(APIC_VERBOSE, "ENABLING IO-APIC IRQs\n");
         /*
          * Set up IO-APIC IRQ routing.
          */
-#ifdef CONFIG_X86_32
-        if (!acpi_ioapic)
-                setup_ioapic_ids_from_mpc();
-#endif
+        x86_init.mpparse.setup_ioapic_ids();
+
         sync_Arb_IDs();
         setup_IO_APIC_irqs();
         init_IO_APIC_traps();
-        check_timer();
+        if (nr_legacy_irqs)
+                check_timer();
 }
 
 /*
@@ -3116,7 +3131,6 @@ static int __init ioapic_init_sysfs(void)
 
 device_initcall(ioapic_init_sysfs);
 
-static int nr_irqs_gsi = NR_IRQS_LEGACY;
 /*
  * Dynamic irq allocate and deallocation
  */
@@ -3856,7 +3870,7 @@ static int __io_apic_set_pci_routing(struct device *dev, int irq,
         /*
          * IRQs < 16 are already in the irq_2_pin[] map
          */
-        if (irq >= NR_IRQS_LEGACY) {
+        if (irq >= nr_legacy_irqs) {
                 cfg = desc->chip_data;
                 if (add_pin_to_irq_node_nopanic(cfg, node, ioapic, pin)) {
                         printk(KERN_INFO "can not add pin %d for irq %d\n",
diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c
index ca96e68f0d23..efa00e2b8505 100644
--- a/arch/x86/kernel/apic/numaq_32.c
+++ b/arch/x86/kernel/apic/numaq_32.c
@@ -66,7 +66,6 @@ struct mpc_trans {
         unsigned short                  trans_reserved;
 };
 
-/* x86_quirks member */
 static int                              mpc_record;
 
 static struct mpc_trans                 *translation_table[MAX_MPC_ENTRY];
@@ -130,10 +129,9 @@ void __cpuinit numaq_tsc_disable(void)
         }
 }
 
-static int __init numaq_pre_time_init(void)
+static void __init numaq_tsc_init(void)
 {
         numaq_tsc_disable();
-        return 0;
 }
 
 static inline int generate_logical_apicid(int quad, int phys_apicid)
@@ -177,6 +175,19 @@ static void mpc_oem_pci_bus(struct mpc_bus *m)
         quad_local_to_mp_bus_id[quad][local] = m->busid;
 }
 
+/*
+ * Called from mpparse code.
+ * mode = 0: prescan
+ * mode = 1: one mpc entry scanned
+ */
+static void numaq_mpc_record(unsigned int mode)
+{
+        if (!mode)
+                mpc_record = 0;
+        else
+                mpc_record++;
+}
+
 static void __init MP_translation_info(struct mpc_trans *m)
 {
         printk(KERN_INFO
@@ -206,9 +217,9 @@ static int __init mpf_checksum(unsigned char *mp, int len)
 /*
  * Read/parse the MPC oem tables
  */
-static void __init
- smp_read_mpc_oem(struct mpc_oemtable *oemtable, unsigned short oemsize)
+static void __init smp_read_mpc_oem(struct mpc_table *mpc)
 {
+        struct mpc_oemtable *oemtable = (void *)(long)mpc->oemptr;
         int count = sizeof(*oemtable);  /* the header size */
         unsigned char *oemptr = ((unsigned char *)oemtable) + count;
 
@@ -250,29 +261,6 @@ static void __init
         }
 }
 
-static int __init numaq_setup_ioapic_ids(void)
-{
-        /* so can skip it */
-        return 1;
-}
-
-static struct x86_quirks numaq_x86_quirks __initdata = {
-        .arch_pre_time_init             = numaq_pre_time_init,
-        .arch_time_init                 = NULL,
-        .arch_pre_intr_init             = NULL,
-        .arch_memory_setup              = NULL,
-        .arch_intr_init                 = NULL,
-        .arch_trap_init                 = NULL,
-        .mach_get_smp_config            = NULL,
-        .mach_find_smp_config           = NULL,
-        .mpc_record                     = &mpc_record,
-        .mpc_apic_id                    = mpc_apic_id,
-        .mpc_oem_bus_info               = mpc_oem_bus_info,
-        .mpc_oem_pci_bus                = mpc_oem_pci_bus,
-        .smp_read_mpc_oem               = smp_read_mpc_oem,
-        .setup_ioapic_ids               = numaq_setup_ioapic_ids,
-};
-
 static __init void early_check_numaq(void)
 {
         /*
@@ -286,8 +274,15 @@ static __init void early_check_numaq(void)
         if (smp_found_config)
                 early_get_smp_config();
 
-        if (found_numaq)
-                x86_quirks = &numaq_x86_quirks;
+        if (found_numaq) {
+                x86_init.mpparse.mpc_record = numaq_mpc_record;
+                x86_init.mpparse.setup_ioapic_ids = x86_init_noop;
+                x86_init.mpparse.mpc_apic_id = mpc_apic_id;
+                x86_init.mpparse.smp_read_mpc_oem = smp_read_mpc_oem;
+                x86_init.mpparse.mpc_oem_pci_bus = mpc_oem_pci_bus;
+                x86_init.mpparse.mpc_oem_bus_info = mpc_oem_bus_info;
+                x86_init.timers.tsc_pre_init = numaq_tsc_init;
+        }
 }
 
 int __init get_memcfg_numaq(void)
@@ -418,7 +413,7 @@ static inline physid_mask_t numaq_apicid_to_cpu_present(int logical_apicid)
 /* Where the IO area was mapped on multiquad, always 0 otherwise */
 void *xquad_portio;
 
-static inline int numaq_check_phys_apicid_present(int boot_cpu_physical_apicid)
+static inline int numaq_check_phys_apicid_present(int phys_apicid)
 {
         return 1;
 }
diff --git a/arch/x86/kernel/apic/summit_32.c b/arch/x86/kernel/apic/summit_32.c
index eafdfbd1ea95..645ecc4ff0be 100644
--- a/arch/x86/kernel/apic/summit_32.c
+++ b/arch/x86/kernel/apic/summit_32.c
@@ -272,7 +272,7 @@ static physid_mask_t summit_apicid_to_cpu_present(int apicid)
         return physid_mask_of_physid(0);
 }
 
-static int summit_check_phys_apicid_present(int boot_cpu_physical_apicid)
+static int summit_check_phys_apicid_present(int physical_apicid)
 {
         return 1;
 }