powerpc: Rename copyuser_power7_vmx.c to vmx-helper.c

Subsequent patches will add more VMX library functions and it makes
sense to keep all the c-code helper functions in the one file.

Signed-off-by: Anton Blanchard <[e-mail]>
Signed-off-by: Benjamin Herrenschmidt <[e-mail]>

arch/powerpc/lib/Makefile

···
 
 ifeq ($(CONFIG_PPC64),y)
 obj-$(CONFIG_SMP)	+= locks.o
-obj-$(CONFIG_ALTIVEC)	+= copyuser_power7_vmx.o
+obj-$(CONFIG_ALTIVEC)	+= vmx-helper.o
 endif
 
 obj-$(CONFIG_PPC_LIB_RHEAP) += rheap.o

arch/powerpc/lib/copyuser_power7.S

···
 	ld	r15,STK_REG(r15)(r1)
 	ld	r14,STK_REG(r14)(r1)
 .Ldo_err3:
-	bl	.exit_vmx_copy
+	bl	.exit_vmx_usercopy
 	ld	r0,STACKFRAMESIZE+16(r1)
 	mtlr	r0
 	b	.Lexit
···
 	mflr	r0
 	std	r0,16(r1)
 	stdu	r1,-STACKFRAMESIZE(r1)
-	bl	.enter_vmx_copy
+	bl	.enter_vmx_usercopy
 	cmpwi	r3,0
 	ld	r0,STACKFRAMESIZE+16(r1)
 	ld	r3,STACKFRAMESIZE+48(r1)
···
 err3;	stb	r0,0(r3)
 
 15:	addi	r1,r1,STACKFRAMESIZE
-	b	.exit_vmx_copy		/* tail call optimise */
+	b	.exit_vmx_usercopy	/* tail call optimise */
 
 .Lvmx_unaligned_copy:
 	/* Get the destination 16B aligned */
···
 err3;	stb	r0,0(r3)
 
 15:	addi	r1,r1,STACKFRAMESIZE
-	b	.exit_vmx_copy		/* tail call optimise */
+	b	.exit_vmx_usercopy	/* tail call optimise */
 #endif /* CONFiG_ALTIVEC */

arch/powerpc/lib/copyuser_power7_vmx.c arch/powerpc/lib/vmx-helper.c

···
 #include <linux/hardirq.h>
 #include <asm/switch_to.h>
 
-int enter_vmx_copy(void)
+int enter_vmx_usercopy(void)
 {
 	if (in_interrupt())
 		return 0;
···
  * This function must return 0 because we tail call optimise when calling
  * from __copy_tofrom_user_power7 which returns 0 on success.
  */
-int exit_vmx_copy(void)
+int exit_vmx_usercopy(void)
 {
 	pagefault_enable();
 	return 0;