x86[_64]: Add CPU topology detection for Intel processors

2013-10-02 01:19:17 +02:00
parent 4110b730db
commit 8ec897323e
2 changed files with 207 additions and 0 deletions
@@ -31,6 +31,15 @@ namespace BKernel {
 using BKernel::Thread;


+typedef enum cpu_topology_level {
+	CPU_TOPOLOGY_SMT,
+	CPU_TOPOLOGY_CORE,
+	CPU_TOPOLOGY_PACKAGE,
+	//
+	CPU_TOPOLOGY_LEVELS
+} cpu_topology_level;
+
+
 /* CPU local data structure */

 typedef struct cpu_ent {
@@ -56,6 +65,9 @@ typedef struct cpu_ent {
 	bool			invoke_scheduler_if_idle;
 	bool			disabled;

+	// CPU topology information
+	int				topology_id[CPU_TOPOLOGY_LEVELS];
+
 	// arch-specific stuff
 	arch_cpu_info arch;
 } cpu_ent __attribute__((aligned(64)));