[MIPS] Unify mips_fpu_soft_struct and mips_fpu_hard_structs.

The struct mips_fpu_soft_struct and mips_fpu_hard_struct are
completely same now and the kernel fpu emulator assumes that.  This
patch unifies them to mips_fpu_struct and get rid of mips_fpu_union.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

3 files changed, 6 insertions, 17 deletions

diff --git a/include/asm-mips/fpu.h b/include/asm-mips/fpu.h
index b0f5001..8bf510a 100644
--- a/include/asm-mips/fpu.h
+++ b/include/asm-mips/fpu.h
@@ -138,10 +138,9 @@ static inline fpureg_t *get_fpu_regs(struct task_struct *tsk)
 	if (cpu_has_fpu) {
 		if ((tsk == current) && __is_fpu_owner())
 			_save_fp(current);
-		return tsk->thread.fpu.hard.fpr;
 	}
 
-	return tsk->thread.fpu.soft.fpr;
+	return tsk->thread.fpu.fpr;
 }
 
 #endif /* _ASM_FPU_H */
diff --git a/include/asm-mips/fpu_emulator.h b/include/asm-mips/fpu_emulator.h
index 16cb4d1..2731c38 100644
--- a/include/asm-mips/fpu_emulator.h
+++ b/include/asm-mips/fpu_emulator.h
@@ -12,8 +12,8 @@
  *  with this program; if not, write to the Free Software Foundation, Inc.,
  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  *
- * Further private data for which no space exists in mips_fpu_soft_struct.
- * This should be subsumed into the mips_fpu_soft_struct structure as
+ * Further private data for which no space exists in mips_fpu_struct.
+ * This should be subsumed into the mips_fpu_struct structure as
  * defined in processor.h as soon as the absurd wired absolute assembler
  * offsets become dynamic at compile time.
  *
diff --git a/include/asm-mips/processor.h b/include/asm-mips/processor.h
index 0fb75f0..8393646 100644
--- a/include/asm-mips/processor.h
+++ b/include/asm-mips/processor.h
@@ -71,11 +71,6 @@ extern unsigned int vced_count, vcei_count;
 
 typedef __u64 fpureg_t;
 
-struct mips_fpu_hard_struct {
-	fpureg_t	fpr[NUM_FPU_REGS];
-	unsigned int	fcr31;
-};
-
 /*
  * It would be nice to add some more fields for emulator statistics, but there
  * are a number of fixed offsets in offset.h and elsewhere that would have to
@@ -83,18 +78,13 @@ struct mips_fpu_hard_struct {
  * the FPU emulator for now.  See asm-mips/fpu_emulator.h.
  */
 
-struct mips_fpu_soft_struct {
+struct mips_fpu_struct {
 	fpureg_t	fpr[NUM_FPU_REGS];
 	unsigned int	fcr31;
 };
 
-union mips_fpu_union {
-        struct mips_fpu_hard_struct hard;
-        struct mips_fpu_soft_struct soft;
-};
-
 #define INIT_FPU { \
-	{{0,},} \
+	{0,} \
 }
 
 #define NUM_DSP_REGS   6
@@ -133,7 +123,7 @@ struct thread_struct {
 	unsigned long cp0_status;
 
 	/* Saved fpu/fpu emulator stuff. */
-	union mips_fpu_union fpu;
+	struct mips_fpu_struct fpu;
 #ifdef CONFIG_MIPS_MT_FPAFF
 	/* Emulated instruction count */
 	unsigned long emulated_fp;