Merge branch 'for_paulus' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc

[pandora-kernel.git] / arch / i386 / kernel / mpparse.c

diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index 0102f3d..34d21e2 100644 (file)
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -38,12 +38,6 @@
 int smp_found_config;
 unsigned int __initdata maxcpus = NR_CPUS;
 
-#ifdef CONFIG_HOTPLUG_CPU
-#define CPU_HOTPLUG_ENABLED    (1)
-#else
-#define CPU_HOTPLUG_ENABLED    (0)
-#endif
-
 /*
  * Various Linux-internal data structures created from the
  * MP-table.
@@ -110,21 +104,6 @@ static int __init mpf_checksum(unsigned char *mp, int len)
 static int mpc_record; 
 static struct mpc_config_translation *translation_table[MAX_MPC_ENTRY] __initdata;
 
-#ifdef CONFIG_X86_NUMAQ
-static int MP_valid_apicid(int apicid, int version)
-{
-       return hweight_long(apicid & 0xf) == 1 && (apicid >> 4) != 0xf;
-}
-#else
-static int MP_valid_apicid(int apicid, int version)
-{
-       if (version >= 0x14)
-               return apicid < 0xff;
-       else
-               return apicid < 0xf;
-}
-#endif
-
 static void __devinit MP_processor_info (struct mpc_config_processor *m)
 {
        int ver, apicid;
@@ -190,12 +169,6 @@ static void __devinit MP_processor_info (struct mpc_config_processor *m)
 
        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);
-               return;
-       }
-
        /*
         * Validate version
         */
@@ -225,7 +198,14 @@ static void __devinit MP_processor_info (struct mpc_config_processor *m)
        cpu_set(num_processors, cpu_possible_map);
        num_processors++;
 
-       if (CPU_HOTPLUG_ENABLED || (num_processors > 8)) {
+       /*
+        * Would be preferable to switch to bigsmp when CONFIG_HOTPLUG_CPU=y
+        * but we need to work other dependencies like SMP_SUSPEND etc
+        * before this can be done without some confusion.
+        * if (CPU_HOTPLUG_ENABLED || num_processors > 8)
+        *       - Ashok Raj <ashok.raj@intel.com>
+        */
+       if (num_processors > 8) {
                switch (boot_cpu_data.x86_vendor) {
                case X86_VENDOR_INTEL:
                        if (!APIC_XAPIC(ver)) {
@@ -249,6 +229,13 @@ static void __init MP_bus_info (struct mpc_config_bus *m)
 
        mpc_oem_bus_info(m, str, translation_table[mpc_record]);
 
+       if (m->mpc_busid >= MAX_MP_BUSSES) {
+               printk(KERN_WARNING "MP table busid value (%d) for bustype %s "
+                       " is too large, max. supported is %d\n",
+                       m->mpc_busid, str, MAX_MP_BUSSES - 1);
+               return;
+       }
+
        if (strncmp(str, BUSTYPE_ISA, sizeof(BUSTYPE_ISA)-1) == 0) {
                mp_bus_id_to_type[m->mpc_busid] = MP_BUS_ISA;
        } else if (strncmp(str, BUSTYPE_EISA, sizeof(BUSTYPE_EISA)-1) == 0) {
@@ -710,7 +697,7 @@ void __init get_smp_config (void)
                 * Read the physical hardware table.  Anything here will
                 * override the defaults.
                 */
-               if (!smp_read_mpc((void *)mpf->mpf_physptr)) {
+               if (!smp_read_mpc(phys_to_virt(mpf->mpf_physptr))) {
                        smp_found_config = 0;
                        printk(KERN_ERR "BIOS bug, MP table errors detected!...\n");
                        printk(KERN_ERR "... disabling SMP support. (tell your hw vendor)\n");
@@ -828,6 +815,8 @@ void __init find_smp_config (void)
                smp_scan_config(address, 0x400);
 }
 
+int es7000_plat;
+
 /* --------------------------------------------------------------------------
                             ACPI-based MP Configuration
    -------------------------------------------------------------------------- */
@@ -915,6 +904,7 @@ void __init mp_register_ioapic (
        u32                     gsi_base)
 {
        int                     idx = 0;
+       int                     tmpid;
 
        if (nr_ioapics >= MAX_IO_APICS) {
                printk(KERN_ERR "ERROR: Max # of I/O APICs (%d) exceeded "
@@ -934,10 +924,16 @@ void __init mp_register_ioapic (
        mp_ioapics[idx].mpc_apicaddr = address;
 
        set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
-       if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && (boot_cpu_data.x86 < 15))
-               mp_ioapics[idx].mpc_apicid = io_apic_get_unique_id(idx, id);
+       if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
+               && !APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
+               tmpid = io_apic_get_unique_id(idx, id);
        else
-               mp_ioapics[idx].mpc_apicid = id;
+               tmpid = id;
+       if (tmpid == -1) {
+               nr_ioapics--;
+               return;
+       }
+       mp_ioapics[idx].mpc_apicid = tmpid;
        mp_ioapics[idx].mpc_apicver = io_apic_get_version(idx);
        
        /* 
@@ -1005,8 +1001,6 @@ void __init mp_override_legacy_irq (
        return;
 }
 
-int es7000_plat;
-
 void __init mp_config_acpi_legacy_irqs (void)
 {
        struct mpc_config_intsrc intsrc;