[ARM] Remove ARM specific set_pmd()

set_pmd has specific behaviour on ARM which may be unexpected.  Since
it is rather too close to macros used by other architectures, open
code this functionality.
Signed-off-by: Russell King <rmk@arm.linux.org.uk>

arch/arm/mach-sa1100/assabet.c

@@ -259,9 +259,11 @@ static void __init map_sa1100_gpio_regs( void )
 	unsigned long phys = __PREG(GPLR) & PMD_MASK;
 	unsigned long virt = io_p2v(phys);
 	int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO);
-	pmd_t pmd;
-	pmd_val(pmd) = phys | prot;
-	set_pmd(pmd_offset(pgd_offset_k(virt), virt), pmd);
+	pmd_t *pmd;
+
+	pmd = pmd_offset(pgd_offset_k(virt), virt);
+	*pmd = __pmd(phys | prot);
+	flush_pmd_entry(pmd);
 }
 
 /*

arch/arm/mm/mm-armv.c

@@ -252,7 +252,8 @@ alloc_init_section(unsigned long virt, unsigned long phys, int prot)
 	if (virt & (1 << 20))
 		pmdp++;
 
-	set_pmd(pmdp, __pmd(phys | prot));
+	*pmdp = __pmd(phys | prot);
+	flush_pmd_entry(pmdp);
 }
 
 /*
@@ -568,8 +569,9 @@ void setup_mm_for_reboot(char mode)
 		if (cpu_arch <= CPU_ARCH_ARMv5)
 			pmdval |= PMD_BIT4;
 		pmd = pmd_offset(pgd + i, i << PGDIR_SHIFT);
-		set_pmd(pmd, __pmd(pmdval));
-		set_pmd(pmd + 1, __pmd(pmdval + (1 << (PGDIR_SHIFT - 1))));
+		pmd[0] = __pmd(pmdval);
+		pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1)));
+		flush_pmd_entry(pmd);
 	}
 }
 

include/asm-arm/pgtable.h

@@ -316,12 +316,6 @@ PTE_BIT_FUNC(mkyoung,   |= L_PTE_YOUNG);
 #define pmd_present(pmd)	(pmd_val(pmd))
 #define pmd_bad(pmd)		(pmd_val(pmd) & 2)
 
-#define set_pmd(pmdp,pmd)		\
-	do {				\
-		*(pmdp) = pmd;		\
-		flush_pmd_entry(pmdp);	\
-	} while (0)
-
 #define copy_pmd(pmdpd,pmdps)		\
 	do {				\
 		pmdpd[0] = pmdps[0];	\