Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...

[linux-2.6-block.git] / arch / i386 / kernel / mpparse.c

diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index ce838abb27d8b48ab23d06a191766b0e2f9c7272..8f767d9aa45d73286af9f8a8a92b2fe901b33608 100644 (file)
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -14,7 +14,6 @@
  */
 
 #include <linux/mm.h>
-#include <linux/irq.h>
 #include <linux/init.h>
 #include <linux/acpi.h>
 #include <linux/delay.h>
@@ -65,10 +64,12 @@ int nr_ioapics;
 int pic_mode;
 unsigned long mp_lapic_addr;
 
+unsigned int def_to_bigsmp = 0;
+
 /* Processor that is doing the boot up */
 unsigned int boot_cpu_physical_apicid = -1U;
 /* Internal processor count */
-static unsigned int __initdata num_processors;
+static unsigned int __devinitdata num_processors;
 
 /* Bitmask of physically existing CPUs */
 physid_mask_t phys_cpu_present_map;
@@ -118,10 +119,10 @@ static int MP_valid_apicid(int apicid, int version)
 }
 #endif
 
-static void __init MP_processor_info (struct mpc_config_processor *m)
+static void __devinit MP_processor_info (struct mpc_config_processor *m)
 {
        int ver, apicid;
-       physid_mask_t tmp;
+       physid_mask_t phys_cpu;
        
        if (!(m->mpc_cpuflag & CPU_ENABLED))
                return;
@@ -181,38 +182,50 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
                boot_cpu_physical_apicid = m->mpc_apicid;
        }
 
-       if (num_processors >= NR_CPUS) {
-               printk(KERN_WARNING "WARNING: NR_CPUS limit of %i reached."
-                       "  Processor ignored.\n", NR_CPUS); 
-               return;
-       }
-
-       if (num_processors >= maxcpus) {
-               printk(KERN_WARNING "WARNING: maxcpus limit of %i reached."
-                       " Processor ignored.\n", maxcpus); 
-               return;
-       }
-       num_processors++;
        ver = m->mpc_apicver;
 
        if (!MP_valid_apicid(apicid, ver)) {
                printk(KERN_WARNING "Processor #%d INVALID. (Max ID: %d).\n",
                        m->mpc_apicid, MAX_APICS);
-               --num_processors;
                return;
        }
 
-       tmp = apicid_to_cpu_present(apicid);
-       physids_or(phys_cpu_present_map, phys_cpu_present_map, tmp);
-       
        /*
         * Validate version
         */
        if (ver == 0x0) {
-               printk(KERN_WARNING "BIOS bug, APIC version is 0 for CPU#%d! fixing up to 0x10. (tell your hw vendor)\n", m->mpc_apicid);
+               printk(KERN_WARNING "BIOS bug, APIC version is 0 for CPU#%d! "
+                               "fixing up to 0x10. (tell your hw vendor)\n",
+                               m->mpc_apicid);
                ver = 0x10;
        }
        apic_version[m->mpc_apicid] = ver;
+
+       phys_cpu = apicid_to_cpu_present(apicid);
+       physids_or(phys_cpu_present_map, phys_cpu_present_map, phys_cpu);
+
+       if (num_processors >= NR_CPUS) {
+               printk(KERN_WARNING "WARNING: NR_CPUS limit of %i reached."
+                       "  Processor ignored.\n", NR_CPUS);
+               return;
+       }
+
+       if (num_processors >= maxcpus) {
+               printk(KERN_WARNING "WARNING: maxcpus limit of %i reached."
+                       " Processor ignored.\n", maxcpus);
+               return;
+       }
+
+       cpu_set(num_processors, cpu_possible_map);
+       num_processors++;
+
+       if ((num_processors > 8) &&
+           APIC_XAPIC(ver) &&
+           (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL))
+               def_to_bigsmp = 1;
+       else
+               def_to_bigsmp = 0;
+
        bios_cpu_apicid[num_processors - 1] = m->mpc_apicid;
 }
 
@@ -653,8 +666,6 @@ void __init get_smp_config (void)
        struct intel_mp_floating *mpf = mpf_found;
 
        /*
-        * ACPI may be used to obtain the entire SMP configuration or just to 
-        * enumerate/configure processors (CONFIG_ACPI_BOOT).  Note that 
         * ACPI supports both logical (e.g. Hyper-Threading) and physical 
         * processors, where MPS only supports physical.
         */
@@ -810,7 +821,7 @@ void __init find_smp_config (void)
                             ACPI-based MP Configuration
    -------------------------------------------------------------------------- */
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 
 void __init mp_register_lapic_address (
        u64                     address)
@@ -826,7 +837,7 @@ void __init mp_register_lapic_address (
 }
 
 
-void __init mp_register_lapic (
+void __devinit mp_register_lapic (
        u8                      id, 
        u8                      enabled)
 {
@@ -856,7 +867,7 @@ void __init mp_register_lapic (
        MP_processor_info(&processor);
 }
 
-#if defined(CONFIG_X86_IO_APIC) && (defined(CONFIG_ACPI_INTERPRETER) || defined(CONFIG_ACPI_BOOT))
+#ifdef CONFIG_X86_IO_APIC
 
 #define MP_ISA_BUS             0
 #define MP_MAX_IOAPIC_PIN      127
@@ -1071,11 +1082,9 @@ int mp_register_gsi (u32 gsi, int edge_level, int active_high_low)
         */
        static int              gsi_to_irq[MAX_GSI_NUM];
 
-#ifdef CONFIG_ACPI_BUS
        /* Don't set up the ACPI SCI because it's already set up */
        if (acpi_fadt.sci_int == gsi)
                return gsi;
-#endif
 
        ioapic = mp_find_ioapic(gsi);
        if (ioapic < 0) {
@@ -1118,13 +1127,11 @@ int mp_register_gsi (u32 gsi, int edge_level, int active_high_low)
                if (gsi < MAX_GSI_NUM) {
                        if (gsi > 15)
                                gsi = pci_irq++;
-#ifdef CONFIG_ACPI_BUS
                        /*
                         * Don't assign IRQ used by ACPI SCI
                         */
                        if (gsi == acpi_fadt.sci_int)
                                gsi = pci_irq++;
-#endif
                        gsi_to_irq[irq] = gsi;
                } else {
                        printk(KERN_ERR "GSI %u is too high\n", gsi);
@@ -1138,5 +1145,5 @@ int mp_register_gsi (u32 gsi, int edge_level, int active_high_low)
        return gsi;
 }
 
-#endif /*CONFIG_X86_IO_APIC && (CONFIG_ACPI_INTERPRETER || CONFIG_ACPI_BOOT)*/
-#endif /*CONFIG_ACPI_BOOT*/
+#endif /* CONFIG_X86_IO_APIC */
+#endif /* CONFIG_ACPI */