x86: make intel.c have 64-bit support code

prepare for unification.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index a669895..365a008 100644 (file)
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -15,6 +15,11 @@
 #include <asm/ds.h>
 #include <asm/bugs.h>
 
+#ifdef CONFIG_X86_64
+#include <asm/topology.h>
+#include <asm/numa_64.h>
+#endif
+
 #include "cpu.h"
 
 #ifdef CONFIG_X86_LOCAL_APIC
@@ -25,14 +30,20 @@
 
 static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
 {
-       /* Netburst reports 64 bytes clflush size, but does IO in 128 bytes */
-       if (c->x86 == 15 && c->x86_cache_alignment == 64)
-               c->x86_cache_alignment = 128;
        if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
                (c->x86 == 0x6 && c->x86_model >= 0x0e))
                set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
+
+#ifdef CONFIG_X86_64
+       set_cpu_cap(c, X86_FEATURE_SYSENTER32);
+#else
+       /* Netburst reports 64 bytes clflush size, but does IO in 128 bytes */
+       if (c->x86 == 15 && c->x86_cache_alignment == 64)
+               c->x86_cache_alignment = 128;
+#endif
 }
 
+#ifdef CONFIG_X86_32
 /*
  *     Early probe support logic for ppro memory erratum #50
  *
@@ -73,6 +84,40 @@ static void __cpuinit Intel_errata_workarounds(struct cpuinfo_x86 *c)
 }
 
 
+
+#ifdef CONFIG_X86_F00F_BUG
+static void __cpuinit trap_init_f00f_bug(void)
+{
+       __set_fixmap(FIX_F00F_IDT, __pa(&idt_table), PAGE_KERNEL_RO);
+
+       /*
+        * Update the IDT descriptor and reload the IDT so that
+        * it uses the read-only mapped virtual address.
+        */
+       idt_descr.address = fix_to_virt(FIX_F00F_IDT);
+       load_idt(&idt_descr);
+}
+#endif
+#endif
+
+static void __cpuinit srat_detect_node(void)
+{
+#if defined(CONFIG_NUMA) && defined(CONFIG_X86_64)
+       unsigned node;
+       int cpu = smp_processor_id();
+       int apicid = hard_smp_processor_id();
+
+       /* Don't do the funky fallback heuristics the AMD version employs
+          for now. */
+       node = apicid_to_node[apicid];
+       if (node == NUMA_NO_NODE || !node_online(node))
+               node = first_node(node_online_map);
+       numa_set_node(cpu, node);
+
+       printk(KERN_INFO "CPU %d/%x -> Node %d\n", cpu, apicid, node);
+#endif
+}
+
 /*
  * find out the number of processor cores on the die
  */
@@ -91,20 +136,6 @@ static int __cpuinit intel_num_cpu_cores(struct cpuinfo_x86 *c)
                return 1;
 }
 
-#ifdef CONFIG_X86_F00F_BUG
-static void __cpuinit trap_init_f00f_bug(void)
-{
-       __set_fixmap(FIX_F00F_IDT, __pa(&idt_table), PAGE_KERNEL_RO);
-
-       /*
-        * Update the IDT descriptor and reload the IDT so that
-        * it uses the read-only mapped virtual address.
-        */
-       idt_descr.address = fix_to_virt(FIX_F00F_IDT);
-       load_idt(&idt_descr);
-}
-#endif
-
 static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 {
        unsigned int l2 = 0;
@@ -139,6 +170,7 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
                        set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON);
        }
 
+#ifdef CONFIG_X86_32
        /* SEP CPUID bug: Pentium Pro reports SEP but doesn't have it until model 3 mask 3 */
        if ((c->x86<<8 | c->x86_model<<4 | c->x86_mask) < 0x633)
                clear_cpu_cap(c, X86_FEATURE_SEP);
@@ -176,18 +208,6 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
        if (p)
                strcpy(c->x86_model_id, p);
 
-       detect_extended_topology(c);
-
-       if (!cpu_has(c, X86_FEATURE_XTOPOLOGY)) {
-               /*
-                * let's use the legacy cpuid vector 0x1 and 0x4 for topology
-                * detection.
-                */
-               c->x86_max_cores = intel_num_cpu_cores(c);
-               detect_ht(c);
-       }
-
-       /* Work around errata */
        Intel_errata_workarounds(c);
 
 #ifdef CONFIG_X86_INTEL_USERCOPY
@@ -208,12 +228,10 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
        }
 #endif
 
+#endif
+
        if (cpu_has_xmm2)
                set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
-       if (c->x86 == 15)
-               set_cpu_cap(c, X86_FEATURE_P4);
-       if (c->x86 == 6)
-               set_cpu_cap(c, X86_FEATURE_P3);
        if (cpu_has_ds) {
                unsigned int l1;
                rdmsr(MSR_IA32_MISC_ENABLE, l1, l2);
@@ -224,6 +242,17 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
                ds_init_intel(c);
        }
 
+#ifdef CONFIG_X86_64
+       if (c->x86 == 15)
+               c->x86_cache_alignment = c->x86_clflush_size * 2;
+       if (c->x86 == 6)
+               set_cpu_cap(c, X86_FEATURE_REP_GOOD);
+#else
+       if (c->x86 == 15)
+               set_cpu_cap(c, X86_FEATURE_P4);
+       if (c->x86 == 6)
+               set_cpu_cap(c, X86_FEATURE_P3);
+
        if (cpu_has_bts)
                ptrace_bts_init_intel(c);
 
@@ -240,8 +269,25 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 #ifdef CONFIG_X86_NUMAQ
        numaq_tsc_disable();
 #endif
+#endif
+
+       detect_extended_topology(c);
+       if (!cpu_has(c, X86_FEATURE_XTOPOLOGY)) {
+               /*
+                * let's use the legacy cpuid vector 0x1 and 0x4 for topology
+                * detection.
+                */
+               c->x86_max_cores = intel_num_cpu_cores(c);
+#ifdef CONFIG_X86_32
+               detect_ht(c);
+#endif
+       }
+
+       /* Work around errata */
+       srat_detect_node();
 }
 
+#ifdef CONFIG_X86_32
 static unsigned int __cpuinit intel_size_cache(struct cpuinfo_x86 *c, unsigned int size)
 {
        /*
@@ -254,10 +300,12 @@ static unsigned int __cpuinit intel_size_cache(struct cpuinfo_x86 *c, unsigned i
                size = 256;
        return size;
 }
+#endif
 
 static struct cpu_dev intel_cpu_dev __cpuinitdata = {
        .c_vendor       = "Intel",
        .c_ident        = { "GenuineIntel" },
+#ifdef CONFIG_X86_32
        .c_models = {
                { .vendor = X86_VENDOR_INTEL, .family = 4, .model_names =
                  {
@@ -307,13 +355,12 @@ static struct cpu_dev intel_cpu_dev __cpuinitdata = {
                  }
                },
        },
+       .c_size_cache   = intel_size_cache,
+#endif
        .c_early_init   = early_init_intel,
        .c_init         = init_intel,
-       .c_size_cache   = intel_size_cache,
        .c_x86_vendor   = X86_VENDOR_INTEL,
 };
 
 cpu_dev_register(intel_cpu_dev);
 
-/* arch_initcall(intel_cpu_init); */
-