From: Glauber Costa <gcosta@redhat.com>
Date: Mon, 3 Mar 2008 17:13:02 +0000 (-0300)
Subject: x86: move sibling functions to common file
X-Git-Tag: v2.6.26-rc1~1154^2~452
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=768d95051bdaf60b4eb89b42c133b14627f478f2;p=linux-2.6

x86: move sibling functions to common file

set_cpu_sibling_map() and remove_sibling_info() are
equal between architectures, and are now moved to common
file

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 40a3b56952..d774520a6b 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -29,7 +29,95 @@ EXPORT_PER_CPU_SYMBOL(cpu_core_map);
 /* Per CPU bogomips and other parameters */
 DEFINE_PER_CPU_SHARED_ALIGNED(struct cpuinfo_x86, cpu_info);
 EXPORT_PER_CPU_SYMBOL(cpu_info);
+
+/* representing cpus for which sibling maps can be computed */
+static cpumask_t cpu_sibling_setup_map;
+
+void __cpuinit set_cpu_sibling_map(int cpu)
+{
+	int i;
+	struct cpuinfo_x86 *c = &cpu_data(cpu);
+
+	cpu_set(cpu, cpu_sibling_setup_map);
+
+	if (smp_num_siblings > 1) {
+		for_each_cpu_mask(i, cpu_sibling_setup_map) {
+			if (c->phys_proc_id == cpu_data(i).phys_proc_id &&
+			    c->cpu_core_id == cpu_data(i).cpu_core_id) {
+				cpu_set(i, per_cpu(cpu_sibling_map, cpu));
+				cpu_set(cpu, per_cpu(cpu_sibling_map, i));
+				cpu_set(i, per_cpu(cpu_core_map, cpu));
+				cpu_set(cpu, per_cpu(cpu_core_map, i));
+				cpu_set(i, c->llc_shared_map);
+				cpu_set(cpu, cpu_data(i).llc_shared_map);
+			}
+		}
+	} else {
+		cpu_set(cpu, per_cpu(cpu_sibling_map, cpu));
+	}
+
+	cpu_set(cpu, c->llc_shared_map);
+
+	if (current_cpu_data.x86_max_cores == 1) {
+		per_cpu(cpu_core_map, cpu) = per_cpu(cpu_sibling_map, cpu);
+		c->booted_cores = 1;
+		return;
+	}
+
+	for_each_cpu_mask(i, cpu_sibling_setup_map) {
+		if (per_cpu(cpu_llc_id, cpu) != BAD_APICID &&
+		    per_cpu(cpu_llc_id, cpu) == per_cpu(cpu_llc_id, i)) {
+			cpu_set(i, c->llc_shared_map);
+			cpu_set(cpu, cpu_data(i).llc_shared_map);
+		}
+		if (c->phys_proc_id == cpu_data(i).phys_proc_id) {
+			cpu_set(i, per_cpu(cpu_core_map, cpu));
+			cpu_set(cpu, per_cpu(cpu_core_map, i));
+			/*
+			 *  Does this new cpu bringup a new core?
+			 */
+			if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1) {
+				/*
+				 * for each core in package, increment
+				 * the booted_cores for this new cpu
+				 */
+				if (first_cpu(per_cpu(cpu_sibling_map, i)) == i)
+					c->booted_cores++;
+				/*
+				 * increment the core count for all
+				 * the other cpus in this package
+				 */
+				if (i != cpu)
+					cpu_data(i).booted_cores++;
+			} else if (i != cpu && !c->booted_cores)
+				c->booted_cores = cpu_data(i).booted_cores;
+		}
+	}
+}
+
 #ifdef CONFIG_HOTPLUG_CPU
+void remove_siblinginfo(int cpu)
+{
+	int sibling;
+	struct cpuinfo_x86 *c = &cpu_data(cpu);
+
+	for_each_cpu_mask(sibling, per_cpu(cpu_core_map, cpu)) {
+		cpu_clear(cpu, per_cpu(cpu_core_map, sibling));
+		/*/
+		 * last thread sibling in this cpu core going down
+		 */
+		if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1)
+			cpu_data(sibling).booted_cores--;
+	}
+
+	for_each_cpu_mask(sibling, per_cpu(cpu_sibling_map, cpu))
+		cpu_clear(cpu, per_cpu(cpu_sibling_map, sibling));
+	cpus_clear(per_cpu(cpu_sibling_map, cpu));
+	cpus_clear(per_cpu(cpu_core_map, cpu));
+	c->phys_proc_id = 0;
+	c->cpu_core_id = 0;
+	cpu_clear(cpu, cpu_sibling_setup_map);
+}
 
 int additional_cpus __initdata = -1;
 
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 0fbc98163b..322f46674d 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -274,71 +274,6 @@ cpumask_t cpu_coregroup_map(int cpu)
 		return c->llc_shared_map;
 }
 
-/* representing cpus for which sibling maps can be computed */
-static cpumask_t cpu_sibling_setup_map;
-
-void __cpuinit set_cpu_sibling_map(int cpu)
-{
-	int i;
-	struct cpuinfo_x86 *c = &cpu_data(cpu);
-
-	cpu_set(cpu, cpu_sibling_setup_map);
-
-	if (smp_num_siblings > 1) {
-		for_each_cpu_mask(i, cpu_sibling_setup_map) {
-			if (c->phys_proc_id == cpu_data(i).phys_proc_id &&
-			    c->cpu_core_id == cpu_data(i).cpu_core_id) {
-				cpu_set(i, per_cpu(cpu_sibling_map, cpu));
-				cpu_set(cpu, per_cpu(cpu_sibling_map, i));
-				cpu_set(i, per_cpu(cpu_core_map, cpu));
-				cpu_set(cpu, per_cpu(cpu_core_map, i));
-				cpu_set(i, c->llc_shared_map);
-				cpu_set(cpu, cpu_data(i).llc_shared_map);
-			}
-		}
-	} else {
-		cpu_set(cpu, per_cpu(cpu_sibling_map, cpu));
-	}
-
-	cpu_set(cpu, c->llc_shared_map);
-
-	if (current_cpu_data.x86_max_cores == 1) {
-		per_cpu(cpu_core_map, cpu) = per_cpu(cpu_sibling_map, cpu);
-		c->booted_cores = 1;
-		return;
-	}
-
-	for_each_cpu_mask(i, cpu_sibling_setup_map) {
-		if (per_cpu(cpu_llc_id, cpu) != BAD_APICID &&
-		    per_cpu(cpu_llc_id, cpu) == per_cpu(cpu_llc_id, i)) {
-			cpu_set(i, c->llc_shared_map);
-			cpu_set(cpu, cpu_data(i).llc_shared_map);
-		}
-		if (c->phys_proc_id == cpu_data(i).phys_proc_id) {
-			cpu_set(i, per_cpu(cpu_core_map, cpu));
-			cpu_set(cpu, per_cpu(cpu_core_map, i));
-			/*
-			 *  Does this new cpu bringup a new core?
-			 */
-			if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1) {
-				/*
-				 * for each core in package, increment
-				 * the booted_cores for this new cpu
-				 */
-				if (first_cpu(per_cpu(cpu_sibling_map, i)) == i)
-					c->booted_cores++;
-				/*
-				 * increment the core count for all
-				 * the other cpus in this package
-				 */
-				if (i != cpu)
-					cpu_data(i).booted_cores++;
-			} else if (i != cpu && !c->booted_cores)
-				c->booted_cores = cpu_data(i).booted_cores;
-		}
-	}
-}
-
 /*
  * Activate a secondary processor.
  */
@@ -1120,29 +1055,6 @@ void __init native_smp_prepare_boot_cpu(void)
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-void remove_siblinginfo(int cpu)
-{
-	int sibling;
-	struct cpuinfo_x86 *c = &cpu_data(cpu);
-
-	for_each_cpu_mask(sibling, per_cpu(cpu_core_map, cpu)) {
-		cpu_clear(cpu, per_cpu(cpu_core_map, sibling));
-		/*/
-		 * last thread sibling in this cpu core going down
-		 */
-		if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1)
-			cpu_data(sibling).booted_cores--;
-	}
-			
-	for_each_cpu_mask(sibling, per_cpu(cpu_sibling_map, cpu))
-		cpu_clear(cpu, per_cpu(cpu_sibling_map, sibling));
-	cpus_clear(per_cpu(cpu_sibling_map, cpu));
-	cpus_clear(per_cpu(cpu_core_map, cpu));
-	c->phys_proc_id = 0;
-	c->cpu_core_id = 0;
-	cpu_clear(cpu, cpu_sibling_setup_map);
-}
-
 int __cpu_disable(void)
 {
 	cpumask_t map = cpu_online_map;
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index 20f1c7df86..329f9c53a3 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -225,71 +225,6 @@ cpumask_t cpu_coregroup_map(int cpu)
 		return c->llc_shared_map;
 }
 
-/* representing cpus for which sibling maps can be computed */
-static cpumask_t cpu_sibling_setup_map;
-
-void __cpuinit set_cpu_sibling_map(int cpu)
-{
-	int i;
-	struct cpuinfo_x86 *c = &cpu_data(cpu);
-
-	cpu_set(cpu, cpu_sibling_setup_map);
-
-	if (smp_num_siblings > 1) {
-		for_each_cpu_mask(i, cpu_sibling_setup_map) {
-			if (c->phys_proc_id == cpu_data(i).phys_proc_id &&
-			    c->cpu_core_id == cpu_data(i).cpu_core_id) {
-				cpu_set(i, per_cpu(cpu_sibling_map, cpu));
-				cpu_set(cpu, per_cpu(cpu_sibling_map, i));
-				cpu_set(i, per_cpu(cpu_core_map, cpu));
-				cpu_set(cpu, per_cpu(cpu_core_map, i));
-				cpu_set(i, c->llc_shared_map);
-				cpu_set(cpu, cpu_data(i).llc_shared_map);
-			}
-		}
-	} else {
-		cpu_set(cpu, per_cpu(cpu_sibling_map, cpu));
-	}
-
-	cpu_set(cpu, c->llc_shared_map);
-
-	if (current_cpu_data.x86_max_cores == 1) {
-		per_cpu(cpu_core_map, cpu) = per_cpu(cpu_sibling_map, cpu);
-		c->booted_cores = 1;
-		return;
-	}
-
-	for_each_cpu_mask(i, cpu_sibling_setup_map) {
-		if (per_cpu(cpu_llc_id, cpu) != BAD_APICID &&
-		    per_cpu(cpu_llc_id, cpu) == per_cpu(cpu_llc_id, i)) {
-			cpu_set(i, c->llc_shared_map);
-			cpu_set(cpu, cpu_data(i).llc_shared_map);
-		}
-		if (c->phys_proc_id == cpu_data(i).phys_proc_id) {
-			cpu_set(i, per_cpu(cpu_core_map, cpu));
-			cpu_set(cpu, per_cpu(cpu_core_map, i));
-			/*
-			 *  Does this new cpu bringup a new core?
-			 */
-			if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1) {
-				/*
-				 * for each core in package, increment
-				 * the booted_cores for this new cpu
-				 */
-				if (first_cpu(per_cpu(cpu_sibling_map, i)) == i)
-					c->booted_cores++;
-				/*
-				 * increment the core count for all
-				 * the other cpus in this package
-				 */
-				if (i != cpu)
-					cpu_data(i).booted_cores++;
-			} else if (i != cpu && !c->booted_cores)
-				c->booted_cores = cpu_data(i).booted_cores;
-		}
-	}
-}
-
 /*
  * Setup code on secondary processor (after comming out of the trampoline)
  */
@@ -917,30 +852,6 @@ void __init native_smp_cpus_done(unsigned int max_cpus)
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-
-void remove_siblinginfo(int cpu)
-{
-	int sibling;
-	struct cpuinfo_x86 *c = &cpu_data(cpu);
-
-	for_each_cpu_mask(sibling, per_cpu(cpu_core_map, cpu)) {
-		cpu_clear(cpu, per_cpu(cpu_core_map, sibling));
-		/*
-		 * last thread sibling in this cpu core going down
-		 */
-		if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1)
-			cpu_data(sibling).booted_cores--;
-	}
-			
-	for_each_cpu_mask(sibling, per_cpu(cpu_sibling_map, cpu))
-		cpu_clear(cpu, per_cpu(cpu_sibling_map, sibling));
-	cpus_clear(per_cpu(cpu_sibling_map, cpu));
-	cpus_clear(per_cpu(cpu_core_map, cpu));
-	c->phys_proc_id = 0;
-	c->cpu_core_id = 0;
-	cpu_clear(cpu, cpu_sibling_setup_map);
-}
-
 static void __ref remove_cpu_from_maps(void)
 {
 	int cpu = smp_processor_id();