x86/fpu: Harmonize FPU register state types

Use these consistent names:

    struct fregs_state           # was: i387_fsave_struct
    struct fxregs_state          # was: i387_fxsave_struct
    struct swregs_state          # was: i387_soft_struct
    struct xregs_state           # was: xsave_struct
    union  fpregs_state          # was: thread_xstate

Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

3 files changed, 31 insertions, 31 deletions

diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h
index db6c24b..7fdc90b 100644
--- a/arch/x86/include/asm/fpu/internal.h
+++ b/arch/x86/include/asm/fpu/internal.h
@@ -22,20 +22,20 @@
 
 extern unsigned int mxcsr_feature_mask;
 
-extern union thread_xstate init_fpstate;
+extern union fpregs_state init_fpstate;
 
 extern void fpu__init_cpu(void);
 extern void fpu__init_system_xstate(void);
 extern void fpu__init_cpu_xstate(void);
 extern void fpu__init_system(struct cpuinfo_x86 *c);
 
-extern void fpstate_init(union thread_xstate *state);
+extern void fpstate_init(union fpregs_state *state);
 #ifdef CONFIG_MATH_EMULATION
-extern void fpstate_init_soft(struct i387_soft_struct *soft);
+extern void fpstate_init_soft(struct swregs_state *soft);
 #else
-static inline void fpstate_init_soft(struct i387_soft_struct *soft) {}
+static inline void fpstate_init_soft(struct swregs_state *soft) {}
 #endif
-static inline void fpstate_init_fxstate(struct i387_fxsave_struct *fx)
+static inline void fpstate_init_fxstate(struct fxregs_state *fx)
 {
 	fx->cwd = 0x37f;
 	fx->mxcsr = MXCSR_DEFAULT;
@@ -133,12 +133,12 @@ extern void fpstate_sanitize_xstate(struct fpu *fpu);
 	err;								\
 })
 
-static inline int copy_fregs_to_user(struct i387_fsave_struct __user *fx)
+static inline int copy_fregs_to_user(struct fregs_state __user *fx)
 {
 	return user_insn(fnsave %[fx]; fwait,  [fx] "=m" (*fx), "m" (*fx));
 }
 
-static inline int copy_fxregs_to_user(struct i387_fxsave_struct __user *fx)
+static inline int copy_fxregs_to_user(struct fxregs_state __user *fx)
 {
 	if (config_enabled(CONFIG_X86_32))
 		return user_insn(fxsave %[fx], [fx] "=m" (*fx), "m" (*fx));
@@ -149,7 +149,7 @@ static inline int copy_fxregs_to_user(struct i387_fxsave_struct __user *fx)
 	return user_insn(rex64/fxsave (%[fx]), "=m" (*fx), [fx] "R" (fx));
 }
 
-static inline int copy_kernel_to_fxregs(struct i387_fxsave_struct *fx)
+static inline int copy_kernel_to_fxregs(struct fxregs_state *fx)
 {
 	if (config_enabled(CONFIG_X86_32))
 		return check_insn(fxrstor %[fx], "=m" (*fx), [fx] "m" (*fx));
@@ -161,7 +161,7 @@ static inline int copy_kernel_to_fxregs(struct i387_fxsave_struct *fx)
 			  "m" (*fx));
 }
 
-static inline int copy_user_to_fxregs(struct i387_fxsave_struct __user *fx)
+static inline int copy_user_to_fxregs(struct fxregs_state __user *fx)
 {
 	if (config_enabled(CONFIG_X86_32))
 		return user_insn(fxrstor %[fx], "=m" (*fx), [fx] "m" (*fx));
@@ -173,12 +173,12 @@ static inline int copy_user_to_fxregs(struct i387_fxsave_struct __user *fx)
 			  "m" (*fx));
 }
 
-static inline int copy_kernel_to_fregs(struct i387_fsave_struct *fx)
+static inline int copy_kernel_to_fregs(struct fregs_state *fx)
 {
 	return check_insn(frstor %[fx], "=m" (*fx), [fx] "m" (*fx));
 }
 
-static inline int copy_user_to_fregs(struct i387_fsave_struct __user *fx)
+static inline int copy_user_to_fregs(struct fregs_state __user *fx)
 {
 	return user_insn(frstor %[fx], "=m" (*fx), [fx] "m" (*fx));
 }
diff --git a/arch/x86/include/asm/fpu/types.h b/arch/x86/include/asm/fpu/types.h
index 006ec29..fe2ce32 100644
--- a/arch/x86/include/asm/fpu/types.h
+++ b/arch/x86/include/asm/fpu/types.h
@@ -4,7 +4,7 @@
 #ifndef _ASM_X86_FPU_H
 #define _ASM_X86_FPU_H
 
-struct i387_fsave_struct {
+struct fregs_state {
 	u32			cwd;	/* FPU Control Word		*/
 	u32			swd;	/* FPU Status Word		*/
 	u32			twd;	/* FPU Tag Word			*/
@@ -20,7 +20,7 @@ struct i387_fsave_struct {
 	u32			status;
 };
 
-struct i387_fxsave_struct {
+struct fxregs_state {
 	u16			cwd; /* Control Word			*/
 	u16			swd; /* Status Word			*/
 	u16			twd; /* Tag Word			*/
@@ -58,7 +58,7 @@ struct i387_fxsave_struct {
 /*
  * Software based FPU emulation state:
  */
-struct i387_soft_struct {
+struct swregs_state {
 	u32			cwd;
 	u32			swd;
 	u32			twd;
@@ -109,7 +109,7 @@ enum xfeature_bit {
 /*
  * There are 16x 256-bit AVX registers named YMM0-YMM15.
  * The low 128 bits are aliased to the 16 SSE registers (XMM0-XMM15)
- * and are stored in 'struct i387_fxsave_struct::xmm_space[]'.
+ * and are stored in 'struct fxregs_state::xmm_space[]'.
  *
  * The high 128 bits are stored here:
  *    16x 128 bits == 256 bytes.
@@ -140,8 +140,8 @@ struct xstate_header {
 	u64				reserved[6];
 } __attribute__((packed));
 
-struct xsave_struct {
-	struct i387_fxsave_struct	i387;
+struct xregs_state {
+	struct fxregs_state		i387;
 	struct xstate_header		header;
 	struct ymmh_struct		ymmh;
 	struct lwp_struct		lwp;
@@ -150,11 +150,11 @@ struct xsave_struct {
 	/* 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;
+union fpregs_state {
+	struct fregs_state		fsave;
+	struct fxregs_state		fxsave;
+	struct swregs_state		soft;
+	struct xregs_state		xsave;
 };
 
 struct fpu {
@@ -171,7 +171,7 @@ struct fpu {
 	unsigned int			last_cpu;
 
 	unsigned int			fpregs_active;
-	union thread_xstate		state;
+	union fpregs_state		state;
 	/*
 	 * This counter contains the number of consecutive context switches
 	 * during which the FPU stays used. If this is over a threshold, the
diff --git a/arch/x86/include/asm/fpu/xstate.h b/arch/x86/include/asm/fpu/xstate.h
index 7f59480..a6181b9 100644
--- a/arch/x86/include/asm/fpu/xstate.h
+++ b/arch/x86/include/asm/fpu/xstate.h
@@ -58,7 +58,7 @@ extern void update_regset_xstate_info(unsigned int size, u64 xstate_mask);
  * This function is called only during boot time when x86 caps are not set
  * up and alternative can not be used yet.
  */
-static inline int copy_xregs_to_kernel_booting(struct xsave_struct *fx)
+static inline int copy_xregs_to_kernel_booting(struct xregs_state *fx)
 {
 	u64 mask = -1;
 	u32 lmask = mask;
@@ -86,7 +86,7 @@ static inline int copy_xregs_to_kernel_booting(struct xsave_struct *fx)
  * This function is called only during boot time when x86 caps are not set
  * up and alternative can not be used yet.
  */
-static inline int copy_kernel_to_xregs_booting(struct xsave_struct *fx, u64 mask)
+static inline int copy_kernel_to_xregs_booting(struct xregs_state *fx, u64 mask)
 {
 	u32 lmask = mask;
 	u32 hmask = mask >> 32;
@@ -112,7 +112,7 @@ static inline int copy_kernel_to_xregs_booting(struct xsave_struct *fx, u64 mask
 /*
  * Save processor xstate to xsave area.
  */
-static inline int copy_xregs_to_kernel(struct xsave_struct *fx)
+static inline int copy_xregs_to_kernel(struct xregs_state *fx)
 {
 	u64 mask = -1;
 	u32 lmask = mask;
@@ -151,7 +151,7 @@ static inline int copy_xregs_to_kernel(struct xsave_struct *fx)
 /*
  * Restore processor xstate from xsave area.
  */
-static inline int copy_kernel_to_xregs(struct xsave_struct *fx, u64 mask)
+static inline int copy_kernel_to_xregs(struct xregs_state *fx, u64 mask)
 {
 	int err = 0;
 	u32 lmask = mask;
@@ -186,7 +186,7 @@ static inline int copy_kernel_to_xregs(struct xsave_struct *fx, u64 mask)
  * backward compatibility for old applications which don't understand
  * compacted format of xsave area.
  */
-static inline int copy_xregs_to_user(struct xsave_struct __user *buf)
+static inline int copy_xregs_to_user(struct xregs_state __user *buf)
 {
 	int err;
 
@@ -210,10 +210,10 @@ static inline int copy_xregs_to_user(struct xsave_struct __user *buf)
 /*
  * Restore xstate from user space xsave area.
  */
-static inline int copy_user_to_xregs(struct xsave_struct __user *buf, u64 mask)
+static inline int copy_user_to_xregs(struct xregs_state __user *buf, u64 mask)
 {
 	int err = 0;
-	struct xsave_struct *xstate = ((__force struct xsave_struct *)buf);
+	struct xregs_state *xstate = ((__force struct xregs_state *)buf);
 	u32 lmask = mask;
 	u32 hmask = mask >> 32;
 
@@ -226,7 +226,7 @@ static inline int copy_user_to_xregs(struct xsave_struct __user *buf, u64 mask)
 	return err;
 }
 
-void *get_xsave_addr(struct xsave_struct *xsave, int xstate);
+void *get_xsave_addr(struct xregs_state *xsave, int xstate);
 void setup_xstate_comp(void);
 
 #endif