Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[linux-2.6] / include / asm-x86 / processor.h

diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index 6e26c7c717a23a15255869f2b864350faf21d597..e6bf92ddeb21ded7de69cff3f37120df56520291 100644 (file)
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -354,7 +354,7 @@ struct i387_soft_struct {
        u32                     entry_eip;
 };
 
-union i387_union {
+union thread_xstate {
        struct i387_fsave_struct        fsave;
        struct i387_fxsave_struct       fxsave;
        struct i387_soft_struct         soft;
@@ -365,6 +365,9 @@ DECLARE_PER_CPU(struct orig_ist, orig_ist);
 #endif
 
 extern void print_cpu_info(struct cpuinfo_x86 *);
+extern unsigned int xstate_size;
+extern void free_thread_xstate(struct task_struct *);
+extern struct kmem_cache *task_xstate_cachep;
 extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c);
 extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c);
 extern unsigned short num_cache_leaves;
@@ -397,8 +400,8 @@ struct thread_struct {
        unsigned long           cr2;
        unsigned long           trap_no;
        unsigned long           error_code;
-       /* Floating point info: */
-       union i387_union        i387 __attribute__((aligned(16)));;
+       /* floating point and extended processor state */
+       union thread_xstate     *xstate;
 #ifdef CONFIG_X86_32
        /* Virtual 86 mode info */
        struct vm86_struct __user *vm86_info;
@@ -918,4 +921,11 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
 
 #define KSTK_EIP(task)         (task_pt_regs(task)->ip)
 
+/* Get/set a process' ability to use the timestamp counter instruction */
+#define GET_TSC_CTL(adr)       get_tsc_mode((adr))
+#define SET_TSC_CTL(val)       set_tsc_mode((val))
+
+extern int get_tsc_mode(unsigned long adr);
+extern int set_tsc_mode(unsigned int val);
+
 #endif