[ARM] Convert set_pte_ext implementions to macros

There are actually only four separate implementations of set_pte_ext.
Use assembler macros to insert code for these into the proc-*.S files.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mm/proc-sa1100.S

@@ -166,24 +166,7 @@ ENTRY(cpu_sa1100_switch_mm)
 	.align	5
 ENTRY(cpu_sa1100_set_pte_ext)
 #ifdef CONFIG_MMU
-	str	r1, [r0], #-2048		@ linux version
-
-	eor	r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY
-
-	bic	r2, r1, #PTE_SMALL_AP_MASK
-	bic	r2, r2, #PTE_TYPE_MASK
-	orr	r2, r2, #PTE_TYPE_SMALL
-
-	tst	r1, #L_PTE_USER			@ User?
-	orrne	r2, r2, #PTE_SMALL_AP_URO_SRW
-
-	tst	r1, #L_PTE_WRITE | L_PTE_DIRTY	@ Write and Dirty?
-	orreq	r2, r2, #PTE_SMALL_AP_UNO_SRW
-
-	tst	r1, #L_PTE_PRESENT | L_PTE_YOUNG	@ Present and Young?
-	movne	r2, #0
-
-	str	r2, [r0]			@ hardware version
+	armv3_set_pte_ext wc_disable=0
 	mov	r0, r0
 	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
 	mcr	p15, 0, r0, c7, c10, 4		@ drain WB