[PATCH] x86_64: Speed up numa_node_id by putting it directly into the PDA

[linux-2.6] / arch / x86_64 / kernel / setup.c

diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index 869770da2933194d7fe5a3e2b4bc6084f2bff397..99cfa751949ade3822ad89b0baa4864a0b3197a7 100644 (file)
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -336,6 +336,11 @@ static __init void parse_cmdline_early (char ** cmdline_p)
 #endif
 #endif
 
+               if (!memcmp(from, "disable_timer_pin_1", 19))
+                       disable_timer_pin_1 = 1;
+               if (!memcmp(from, "enable_timer_pin_1", 18))
+                       disable_timer_pin_1 = -1;
+
                if (!memcmp(from, "nolapic", 7) ||
                    !memcmp(from, "disableapic", 11))
                        disable_apic = 1;
@@ -818,7 +823,7 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
                if (!node_online(node))
                        node = nearby_node(apicid);
        }
-       cpu_to_node[cpu] = node;
+       numa_set_node(cpu, node);
 
        printk(KERN_INFO "CPU %d(%d) -> Node %d -> Core %d\n",
                        cpu, c->x86_num_cores, node, cpu_core_id[cpu]);
@@ -831,6 +836,23 @@ static int __init init_amd(struct cpuinfo_x86 *c)
        int r;
        int level;
 
+#ifdef CONFIG_SMP
+       unsigned long value;
+
+       /*
+        * Disable TLB flush filter by setting HWCR.FFDIS on K8
+        * bit 6 of msr C001_0015
+        *
+        * Errata 63 for SH-B3 steppings
+        * Errata 122 for all steppings (F+ have it disabled by default)
+        */
+       if (c->x86 == 15) {
+               rdmsrl(MSR_K8_HWCR, value);
+               value |= 1 << 6;
+               wrmsrl(MSR_K8_HWCR, value);
+       }
+#endif
+
        /* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
           3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway */
        clear_bit(0*32+31, &c->x86_capability);
@@ -945,16 +967,15 @@ static int __cpuinit intel_num_cpu_cores(struct cpuinfo_x86 *c)
 static void srat_detect_node(void)
 {
 #ifdef CONFIG_NUMA
-       unsigned apicid, node;
+       unsigned node;
        int cpu = smp_processor_id();
 
        /* Don't do the funky fallback heuristics the AMD version employs
           for now. */
-       apicid = phys_proc_id[cpu];
-       node = apicid_to_node[apicid];
+       node = apicid_to_node[hard_smp_processor_id()];
        if (node == NUMA_NO_NODE)
                node = 0;
-       cpu_to_node[cpu] = node;
+       numa_set_node(cpu, node);
 
        if (acpi_numa > 0)
                printk(KERN_INFO "CPU %d -> Node %d\n", cpu, node);
@@ -1039,10 +1060,10 @@ void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
                c->x86 = (tfms >> 8) & 0xf;
                c->x86_model = (tfms >> 4) & 0xf;
                c->x86_mask = tfms & 0xf;
-               if (c->x86 == 0xf) {
+               if (c->x86 == 0xf)
                        c->x86 += (tfms >> 20) & 0xff;
+               if (c->x86 >= 0x6)
                        c->x86_model += ((tfms >> 16) & 0xF) << 4;
-               } 
                if (c->x86_capability[0] & (1<<19)) 
                        c->x86_clflush_size = ((misc >> 8) & 0xff) * 8;
        } else {
@@ -1192,7 +1213,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
                /* Intel-defined (#2) */
-               "pni", NULL, NULL, "monitor", "ds_cpl", NULL, NULL, "est",
+               "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", NULL, "est",
                "tm2", NULL, "cid", NULL, NULL, "cx16", "xtpr", NULL,
                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,