15 files changed, 61 insertions, 60 deletions

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 1a3ca2488164..7edef9121632 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -631,7 +631,8 @@ comment "Processor Features"
 
 config ARM_LPAE
 	bool "Support for the Large Physical Address Extension"
-	depends on MMU && CPU_V7
+	depends on MMU && CPU_32v7 && !CPU_32v6 && !CPU_32v5 && \
+		!CPU_32v4 && !CPU_32v3
 	help
 	  Say Y if you have an ARMv7 processor supporting the LPAE page
 	  table format and you would like to access memory beyond the
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index 07c4bc8ea0a4..a655d3da386d 100644
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -54,9 +54,15 @@ loop1:
 	and	r1, r1, #7			@ mask of the bits for current cache only
 	cmp	r1, #2				@ see what cache we have at this level
 	blt	skip				@ skip if no cache, or just i-cache
+#ifdef CONFIG_PREEMPT
+	save_and_disable_irqs_notrace r9	@ make cssr&csidr read atomic
+#endif
 	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level in cssr
 	isb					@ isb to sych the new cssr&csidr
 	mrc	p15, 1, r1, c0, c0, 0		@ read the new csidr
+#ifdef CONFIG_PREEMPT
+	restore_irqs_notrace r9
+#endif
 	and	r2, r1, #7			@ extract the length of the cache lines
 	add	r2, r2, #4			@ add 4 (line length offset)
 	ldr	r4, =0x3ff
diff --git a/arch/arm/mm/copypage-fa.c b/arch/arm/mm/copypage-fa.c
index d2852e1635b1..d130a5ece5d5 100644
--- a/arch/arm/mm/copypage-fa.c
+++ b/arch/arm/mm/copypage-fa.c
@@ -44,11 +44,11 @@ void fa_copy_user_highpage(struct page *to, struct page *from,
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	fa_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 /*
@@ -58,7 +58,7 @@ void fa_copy_user_highpage(struct page *to, struct page *from,
  */
 void fa_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile("\
 	mov	r1, %2				@ 1\n\
 	mov	r2, #0				@ 1\n\
@@ -77,7 +77,7 @@ void fa_clear_user_highpage(struct page *page, unsigned long vaddr)
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 32)
 	: "r1", "r2", "r3", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns fa_user_fns __initdata = {
diff --git a/arch/arm/mm/copypage-feroceon.c b/arch/arm/mm/copypage-feroceon.c
index ac163de7dc01..49ee0c1a7209 100644
--- a/arch/arm/mm/copypage-feroceon.c
+++ b/arch/arm/mm/copypage-feroceon.c
@@ -72,17 +72,17 @@ void feroceon_copy_user_highpage(struct page *to, struct page *from,
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	flush_cache_page(vma, vaddr, page_to_pfn(from));
 	feroceon_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile ("\
 	mov	r1, %2				\n\
 	mov	r2, #0				\n\
@@ -102,7 +102,7 @@ void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr)
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 32)
 	: "r1", "r2", "r3", "r4", "r5", "r6", "r7", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns feroceon_user_fns __initdata = {
diff --git a/arch/arm/mm/copypage-v3.c b/arch/arm/mm/copypage-v3.c
index f72303e1d804..3935bddd4769 100644
--- a/arch/arm/mm/copypage-v3.c
+++ b/arch/arm/mm/copypage-v3.c
@@ -42,11 +42,11 @@ void v3_copy_user_highpage(struct page *to, struct page *from,
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	v3_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 /*
@@ -56,7 +56,7 @@ void v3_copy_user_highpage(struct page *to, struct page *from,
  */
 void v3_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile("\n\
 	mov	r1, %2				@ 1\n\
 	mov	r2, #0				@ 1\n\
@@ -72,7 +72,7 @@ void v3_clear_user_highpage(struct page *page, unsigned long vaddr)
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 64)
 	: "r1", "r2", "r3", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns v3_user_fns __initdata = {
diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c
index 7d0a8c230342..ec8c3befb9c8 100644
--- a/arch/arm/mm/copypage-v4mc.c
+++ b/arch/arm/mm/copypage-v4mc.c
@@ -71,7 +71,7 @@ mc_copy_user_page(void *from, void *to)
 void v4_mc_copy_user_highpage(struct page *to, struct page *from,
 	unsigned long vaddr, struct vm_area_struct *vma)
 {
-	void *kto = kmap_atomic(to, KM_USER1);
+	void *kto = kmap_atomic(to);
 
 	if (!test_and_set_bit(PG_dcache_clean, &from->flags))
 		__flush_dcache_page(page_mapping(from), from);
@@ -85,7 +85,7 @@ void v4_mc_copy_user_highpage(struct page *to, struct page *from,
 
 	raw_spin_unlock(&minicache_lock);
 
-	kunmap_atomic(kto, KM_USER1);
+	kunmap_atomic(kto);
 }
 
 /*
@@ -93,7 +93,7 @@ void v4_mc_copy_user_highpage(struct page *to, struct page *from,
  */
 void v4_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile("\
 	mov	r1, %2				@ 1\n\
 	mov	r2, #0				@ 1\n\
@@ -111,7 +111,7 @@ void v4_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 64)
 	: "r1", "r2", "r3", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns v4_mc_user_fns __initdata = {
diff --git a/arch/arm/mm/copypage-v4wb.c b/arch/arm/mm/copypage-v4wb.c
index cb589cbb2b6c..067d0fdd630c 100644
--- a/arch/arm/mm/copypage-v4wb.c
+++ b/arch/arm/mm/copypage-v4wb.c
@@ -52,12 +52,12 @@ void v4wb_copy_user_highpage(struct page *to, struct page *from,
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	flush_cache_page(vma, vaddr, page_to_pfn(from));
 	v4wb_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 /*
@@ -67,7 +67,7 @@ void v4wb_copy_user_highpage(struct page *to, struct page *from,
  */
 void v4wb_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile("\
 	mov	r1, %2				@ 1\n\
 	mov	r2, #0				@ 1\n\
@@ -86,7 +86,7 @@ void v4wb_clear_user_highpage(struct page *page, unsigned long vaddr)
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 64)
 	: "r1", "r2", "r3", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns v4wb_user_fns __initdata = {
diff --git a/arch/arm/mm/copypage-v4wt.c b/arch/arm/mm/copypage-v4wt.c
index 30c7d048a324..b85c5da2e510 100644
--- a/arch/arm/mm/copypage-v4wt.c
+++ b/arch/arm/mm/copypage-v4wt.c
@@ -48,11 +48,11 @@ void v4wt_copy_user_highpage(struct page *to, struct page *from,
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	v4wt_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 /*
@@ -62,7 +62,7 @@ void v4wt_copy_user_highpage(struct page *to, struct page *from,
  */
 void v4wt_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile("\
 	mov	r1, %2				@ 1\n\
 	mov	r2, #0				@ 1\n\
@@ -79,7 +79,7 @@ void v4wt_clear_user_highpage(struct page *page, unsigned long vaddr)
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 64)
 	: "r1", "r2", "r3", "ip", "lr");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns v4wt_user_fns __initdata = {
diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c
index 3d9a1552cef6..8b03a5814d00 100644
--- a/arch/arm/mm/copypage-v6.c
+++ b/arch/arm/mm/copypage-v6.c
@@ -38,11 +38,11 @@ static void v6_copy_user_highpage_nonaliasing(struct page *to,
 {
 	void *kto, *kfrom;
 
-	kfrom = kmap_atomic(from, KM_USER0);
-	kto = kmap_atomic(to, KM_USER1);
+	kfrom = kmap_atomic(from);
+	kto = kmap_atomic(to);
 	copy_page(kto, kfrom);
-	kunmap_atomic(kto, KM_USER1);
-	kunmap_atomic(kfrom, KM_USER0);
+	kunmap_atomic(kto);
+	kunmap_atomic(kfrom);
 }
 
 /*
@@ -51,9 +51,9 @@ static void v6_copy_user_highpage_nonaliasing(struct page *to,
  */
 static void v6_clear_user_highpage_nonaliasing(struct page *page, unsigned long vaddr)
 {
-	void *kaddr = kmap_atomic(page, KM_USER0);
+	void *kaddr = kmap_atomic(page);
 	clear_page(kaddr);
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 /*
diff --git a/arch/arm/mm/copypage-xsc3.c b/arch/arm/mm/copypage-xsc3.c
index f9cde0702f1e..03a2042aced5 100644
--- a/arch/arm/mm/copypage-xsc3.c
+++ b/arch/arm/mm/copypage-xsc3.c
@@ -75,12 +75,12 @@ void xsc3_mc_copy_user_highpage(struct page *to, struct page *from,
 {
 	void *kto, *kfrom;
 
-	kto = kmap_atomic(to, KM_USER0);
-	kfrom = kmap_atomic(from, KM_USER1);
+	kto = kmap_atomic(to);
+	kfrom = kmap_atomic(from);
 	flush_cache_page(vma, vaddr, page_to_pfn(from));
 	xsc3_mc_copy_user_page(kto, kfrom);
-	kunmap_atomic(kfrom, KM_USER1);
-	kunmap_atomic(kto, KM_USER0);
+	kunmap_atomic(kfrom);
+	kunmap_atomic(kto);
 }
 
 /*
@@ -90,7 +90,7 @@ void xsc3_mc_copy_user_highpage(struct page *to, struct page *from,
  */
 void xsc3_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile ("\
 	mov	r1, %2				\n\
 	mov	r2, #0				\n\
@@ -105,7 +105,7 @@ void xsc3_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 32)
 	: "r1", "r2", "r3");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns xsc3_mc_user_fns __initdata = {
diff --git a/arch/arm/mm/copypage-xscale.c b/arch/arm/mm/copypage-xscale.c
index 610c24ced310..439d106ae638 100644
--- a/arch/arm/mm/copypage-xscale.c
+++ b/arch/arm/mm/copypage-xscale.c
@@ -93,7 +93,7 @@ mc_copy_user_page(void *from, void *to)
 void xscale_mc_copy_user_highpage(struct page *to, struct page *from,
 	unsigned long vaddr, struct vm_area_struct *vma)
 {
-	void *kto = kmap_atomic(to, KM_USER1);
+	void *kto = kmap_atomic(to);
 
 	if (!test_and_set_bit(PG_dcache_clean, &from->flags))
 		__flush_dcache_page(page_mapping(from), from);
@@ -107,7 +107,7 @@ void xscale_mc_copy_user_highpage(struct page *to, struct page *from,
 
 	raw_spin_unlock(&minicache_lock);
 
-	kunmap_atomic(kto, KM_USER1);
+	kunmap_atomic(kto);
 }
 
 /*
@@ -116,7 +116,7 @@ void xscale_mc_copy_user_highpage(struct page *to, struct page *from,
 void
 xscale_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
 {
-	void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+	void *ptr, *kaddr = kmap_atomic(page);
 	asm volatile(
 	"mov	r1, %2				\n\
 	mov	r2, #0				\n\
@@ -133,7 +133,7 @@ xscale_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
 	: "=r" (ptr)
 	: "0" (kaddr), "I" (PAGE_SIZE / 32)
 	: "r1", "r2", "r3", "ip");
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 }
 
 struct cpu_user_fns xscale_mc_user_fns __initdata = {
diff --git a/arch/arm/mm/highmem.c b/arch/arm/mm/highmem.c
index 807c0573abbe..5a21505d7550 100644
--- a/arch/arm/mm/highmem.c
+++ b/arch/arm/mm/highmem.c
@@ -36,7 +36,7 @@ void kunmap(struct page *page)
 }
 EXPORT_SYMBOL(kunmap);
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	unsigned int idx;
 	unsigned long vaddr;
@@ -81,7 +81,7 @@ void *__kmap_atomic(struct page *page)
 
 	return (void *)vaddr;
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr)
 {
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 5dc7d127a40f..245a55a0a5bb 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -32,7 +32,6 @@
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
-#include <asm/memblock.h>
 
 #include "mm.h"
 
diff --git a/arch/arm/mm/iomap.c b/arch/arm/mm/iomap.c
index e62956e12030..4614208369f1 100644
--- a/arch/arm/mm/iomap.c
+++ b/arch/arm/mm/iomap.c
@@ -32,9 +32,6 @@ EXPORT_SYMBOL(pcibios_min_io);
 unsigned long pcibios_min_mem = 0x01000000;
 EXPORT_SYMBOL(pcibios_min_mem);
 
-unsigned int pci_flags = PCI_REASSIGN_ALL_RSRC;
-EXPORT_SYMBOL(pci_flags);
-
 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 {
 	if ((unsigned long)addr >= VMALLOC_START &&
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 0404ccbb8aa3..f1c8486f7501 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -230,9 +230,7 @@ __v7_setup:
 	mcreq	p15, 0, r10, c15, c0, 1		@ write diagnostic register
 #endif
 #ifdef CONFIG_ARM_ERRATA_743622
-	teq	r6, #0x20			@ present in r2p0
-	teqne	r6, #0x21			@ present in r2p1
-	teqne	r6, #0x22			@ present in r2p2
+	teq	r5, #0x00200000			@ only present in r2p*
 	mrceq	p15, 0, r10, c15, c0, 1		@ read diagnostic register
 	orreq	r10, r10, #1 << 6		@ set bit #6
 	mcreq	p15, 0, r10, c15, c0, 1		@ write diagnostic register