use printk_once() in several places

[mirror_ubuntu-artful-kernel.git] / arch / x86 / kernel / cpu / common.c

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 77848d9fca6833fa88488adb6e22cae027a7d6c1..9fa33886c0d791a2a6aad25b42accb1e5a978a34 100644 (file)
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -13,6 +13,7 @@
 #include <linux/io.h>
 
 #include <asm/stackprotector.h>
+#include <asm/perf_counter.h>
 #include <asm/mmu_context.h>
 #include <asm/hypervisor.h>
 #include <asm/processor.h>
@@ -299,7 +300,8 @@ static const char *__cpuinit table_lookup_model(struct cpuinfo_x86 *c)
        return NULL;            /* Not found */
 }
 
-__u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata;
+__u32 cpu_caps_cleared[NCAPINTS] __cpuinitdata;
+__u32 cpu_caps_set[NCAPINTS] __cpuinitdata;
 
 void load_percpu_segment(int cpu)
 {
@@ -485,7 +487,6 @@ out:
 static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c)
 {
        char *v = c->x86_vendor_id;
-       static int printed;
        int i;
 
        for (i = 0; i < X86_VENDOR_NUM; i++) {
@@ -502,13 +503,9 @@ static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c)
                }
        }
 
-       if (!printed) {
-               printed++;
-               printk(KERN_ERR
-                   "CPU: vendor_id '%s' unknown, using generic init.\n", v);
-
-               printk(KERN_ERR "CPU: Your system may be unstable.\n");
-       }
+       printk_once(KERN_ERR
+                       "CPU: vendor_id '%s' unknown, using generic init.\n" \
+                       "CPU: Your system may be unstable.\n", v);
 
        c->x86_vendor = X86_VENDOR_UNKNOWN;
        this_cpu = &default_cpu;
@@ -768,6 +765,12 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
        if (this_cpu->c_identify)
                this_cpu->c_identify(c);
 
+       /* Clear/Set all flags overriden by options, after probe */
+       for (i = 0; i < NCAPINTS; i++) {
+               c->x86_capability[i] &= ~cpu_caps_cleared[i];
+               c->x86_capability[i] |= cpu_caps_set[i];
+       }
+
 #ifdef CONFIG_X86_64
        c->apicid = apic->phys_pkg_id(c->initial_apicid, 0);
 #endif
@@ -813,6 +816,16 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 #endif
 
        init_hypervisor(c);
+
+       /*
+        * Clear/Set all flags overriden by options, need do it
+        * before following smp all cpus cap AND.
+        */
+       for (i = 0; i < NCAPINTS; i++) {
+               c->x86_capability[i] &= ~cpu_caps_cleared[i];
+               c->x86_capability[i] |= cpu_caps_set[i];
+       }
+
        /*
         * On SMP, boot_cpu_data holds the common feature set between
         * all CPUs; so make sure that we indicate which features are
@@ -825,10 +838,6 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
                        boot_cpu_data.x86_capability[i] &= c->x86_capability[i];
        }
 
-       /* Clear all flags overriden by options */
-       for (i = 0; i < NCAPINTS; i++)
-               c->x86_capability[i] &= ~cleared_cpu_caps[i];
-
 #ifdef CONFIG_X86_MCE
        /* Init Machine Check Exception if available. */
        mcheck_init(c);
@@ -861,6 +870,7 @@ void __init identify_boot_cpu(void)
 #else
        vgetcpu_set_mode();
 #endif
+       init_hw_perf_counters();
 }
 
 void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c)