Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / arch / i386 / kernel / cpu / common.c

diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index ad8cc4b..7dda85f 100644 (file)
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -11,6 +11,8 @@
 #include <asm/msr.h>
 #include <asm/io.h>
 #include <asm/mmu_context.h>
+#include <asm/mtrr.h>
+#include <asm/mce.h>
 #ifdef CONFIG_X86_LOCAL_APIC
 #include <asm/mpspec.h>
 #include <asm/apic.h>
@@ -292,7 +294,7 @@ void __cpuinit generic_identify(struct cpuinfo_x86 * c)
                        if (c->x86 >= 0x6)
                                c->x86_model += ((tfms >> 16) & 0xF) << 4;
                        c->x86_mask = tfms & 15;
-#ifdef CONFIG_SMP
+#ifdef CONFIG_X86_HT
                        c->apicid = phys_pkg_id((ebx >> 24) & 0xFF, 0);
 #else
                        c->apicid = (ebx >> 24) & 0xFF;
@@ -317,7 +319,7 @@ void __cpuinit generic_identify(struct cpuinfo_x86 * c)
        early_intel_workaround(c);
 
 #ifdef CONFIG_X86_HT
-       phys_proc_id[smp_processor_id()] = (cpuid_ebx(1) >> 24) & 0xff;
+       c->phys_proc_id = (cpuid_ebx(1) >> 24) & 0xff;
 #endif
 }
 
@@ -482,11 +484,9 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 {
        u32     eax, ebx, ecx, edx;
        int     index_msb, core_bits;
-       int     cpu = smp_processor_id();
 
        cpuid(1, &eax, &ebx, &ecx, &edx);
 
-
        if (!cpu_has(c, X86_FEATURE_HT) || cpu_has(c, X86_FEATURE_CMP_LEGACY))
                return;
 
@@ -497,16 +497,17 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c)
        } else if (smp_num_siblings > 1 ) {
 
                if (smp_num_siblings > NR_CPUS) {
-                       printk(KERN_WARNING "CPU: Unsupported number of the siblings %d", smp_num_siblings);
+                       printk(KERN_WARNING "CPU: Unsupported number of the "
+                                       "siblings %d", smp_num_siblings);
                        smp_num_siblings = 1;
                        return;
                }
 
                index_msb = get_count_order(smp_num_siblings);
-               phys_proc_id[cpu] = phys_pkg_id((ebx >> 24) & 0xFF, index_msb);
+               c->phys_proc_id = phys_pkg_id((ebx >> 24) & 0xFF, index_msb);
 
                printk(KERN_INFO  "CPU: Physical Processor ID: %d\n",
-                      phys_proc_id[cpu]);
+                      c->phys_proc_id);
 
                smp_num_siblings = smp_num_siblings / c->x86_max_cores;
 
@@ -514,12 +515,12 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 
                core_bits = get_count_order(c->x86_max_cores);
 
-               cpu_core_id[cpu] = phys_pkg_id((ebx >> 24) & 0xFF, index_msb) &
+               c->cpu_core_id = phys_pkg_id((ebx >> 24) & 0xFF, index_msb) &
                                               ((1 << core_bits) - 1);
 
                if (c->x86_max_cores > 1)
                        printk(KERN_INFO  "CPU: Processor Core ID: %d\n",
-                              cpu_core_id[cpu]);
+                              c->cpu_core_id);
        }
 }
 #endif
@@ -618,6 +619,12 @@ void __cpuinit cpu_init(void)
                set_in_cr4(X86_CR4_TSD);
        }
 
+       /* The CPU hotplug case */
+       if (cpu_gdt_descr->address) {
+               gdt = (struct desc_struct *)cpu_gdt_descr->address;
+               memset(gdt, 0, PAGE_SIZE);
+               goto old_gdt;
+       }
        /*
         * This is a horrible hack to allocate the GDT.  The problem
         * is that cpu_init() is called really early for the boot CPU
@@ -636,7 +643,7 @@ void __cpuinit cpu_init(void)
                                local_irq_enable();
                }
        }
-
+old_gdt:
        /*
         * Initialize the per-CPU GDT with the boot GDT,
         * and set up the GDT descriptor: