4 files changed, 29 insertions, 12 deletions

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 5bd7c89a604..3e62aae2225 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -572,6 +572,8 @@ config CPU_TLB_V6
 config CPU_TLB_V7
 	bool
 
+config VERIFY_PERMISSION_FAULT
+	bool
 endif
 
 config CPU_HAS_ASID
@@ -769,7 +771,7 @@ config CACHE_L2X0
 
 config CACHE_TAUROS2
 	bool "Enable the Tauros2 L2 cache controller"
-	depends on ARCH_DOVE
+	depends on (ARCH_DOVE || ARCH_MMP)
 	default y
 	select OUTER_CACHE
 	help
diff --git a/arch/arm/mm/abort-ev7.S b/arch/arm/mm/abort-ev7.S
index 2e6dc040c65..ec88b157d3b 100644
--- a/arch/arm/mm/abort-ev7.S
+++ b/arch/arm/mm/abort-ev7.S
@@ -29,5 +29,26 @@ ENTRY(v7_early_abort)
 	 * V6 code adjusts the returned DFSR.
 	 * New designs should not need to patch up faults.
 	 */
+
+#if defined(CONFIG_VERIFY_PERMISSION_FAULT)
+	/*
+	 * Detect erroneous permission failures and fix
+	 */
+	ldr	r3, =0x40d			@ On permission fault
+	and	r3, r1, r3
+	cmp	r3, #0x0d
+	movne	pc, lr
+
+	mcr	p15, 0, r0, c7, c8, 0   	@ Retranslate FAR
+	isb
+	mrc	p15, 0, r2, c7, c4, 0   	@ Read the PAR
+	and	r3, r2, #0x7b   		@ On translation fault
+	cmp	r3, #0x0b
+	movne	pc, lr
+	bic	r1, r1, #0xf			@ Fix up FSR FS[5:0]
+	and	r2, r2, #0x7e
+	orr	r1, r1, r2, LSR #1
+#endif
+
 	mov	pc, lr
 ENDPROC(v7_early_abort)
diff --git a/arch/arm/mm/copypage-fa.c b/arch/arm/mm/copypage-fa.c
index b2a6008b011..d2852e1635b 100644
--- a/arch/arm/mm/copypage-fa.c
+++ b/arch/arm/mm/copypage-fa.c
@@ -40,7 +40,7 @@ fa_copy_user_page(void *kto, const void *kfrom)
 }
 
 void fa_copy_user_highpage(struct page *to, struct page *from,
-	unsigned long vaddr)
+	unsigned long vaddr, struct vm_area_struct *vma)
 {
 	void *kto, *kfrom;
 
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 83db12a68d5..0ed29bfeba1 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -86,9 +86,6 @@ void show_mem(void)
 	printk("Mem-info:\n");
 	show_free_areas();
 	for_each_online_node(node) {
-		pg_data_t *n = NODE_DATA(node);
-		struct page *map = pgdat_page_nr(n, 0) - n->node_start_pfn;
-
 		for_each_nodebank (i,mi,node) {
 			struct membank *bank = &mi->bank[i];
 			unsigned int pfn1, pfn2;
@@ -97,8 +94,8 @@ void show_mem(void)
 			pfn1 = bank_pfn_start(bank);
 			pfn2 = bank_pfn_end(bank);
 
-			page = map + pfn1;
-			end  = map + pfn2;
+			page = pfn_to_page(pfn1);
+			end  = pfn_to_page(pfn2 - 1) + 1;
 
 			do {
 				total++;
@@ -603,9 +600,6 @@ void __init mem_init(void)
 	reserved_pages = free_pages = 0;
 
 	for_each_online_node(node) {
-		pg_data_t *n = NODE_DATA(node);
-		struct page *map = pgdat_page_nr(n, 0) - n->node_start_pfn;
-
 		for_each_nodebank(i, &meminfo, node) {
 			struct membank *bank = &meminfo.bank[i];
 			unsigned int pfn1, pfn2;
@@ -614,8 +608,8 @@ void __init mem_init(void)
 			pfn1 = bank_pfn_start(bank);
 			pfn2 = bank_pfn_end(bank);
 
-			page = map + pfn1;
-			end  = map + pfn2;
+			page = pfn_to_page(pfn1);
+			end  = pfn_to_page(pfn2 - 1) + 1;
 
 			do {
 				if (PageReserved(page))