x86, xsave: context switch support using xsave/xrstor

[linux-2.6-omap-h63xx.git] / include / asm-x86 / processor.h

diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index 5f58da401b43696ee861377fb9aba53500af8b8e..77b7af6b573bfa3f08afa13de9e53f6fd07cf1f7 100644 (file)
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -1,5 +1,5 @@
-#ifndef __ASM_X86_PROCESSOR_H
-#define __ASM_X86_PROCESSOR_H
+#ifndef ASM_X86__PROCESSOR_H
+#define ASM_X86__PROCESSOR_H
 
 #include <asm/processor-flags.h>
 
@@ -346,10 +346,23 @@ struct i387_soft_struct {
        u32                     entry_eip;
 };
 
+struct xsave_hdr_struct {
+       u64 xstate_bv;
+       u64 reserved1[2];
+       u64 reserved2[5];
+} __attribute__((packed));
+
+struct xsave_struct {
+       struct i387_fxsave_struct i387;
+       struct xsave_hdr_struct xsave_hdr;
+       /* new processor state extensions will go here */
+} __attribute__ ((packed, aligned (64)));
+
 union thread_xstate {
        struct i387_fsave_struct        fsave;
        struct i387_fxsave_struct       fxsave;
        struct i387_soft_struct         soft;
+       struct xsave_struct             xsave;
 };
 
 #ifdef CONFIG_X86_64
@@ -920,4 +933,4 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
 extern int get_tsc_mode(unsigned long adr);
 extern int set_tsc_mode(unsigned int val);
 
-#endif
+#endif /* ASM_X86__PROCESSOR_H */