Merge tag 'lsk-v3.14-15.02' of https://git.linaro.org/kernel/linux-linaro-stable into odroidc2-3.14.y-linarohk

LSK 15.02 v3.14 Conflicts: arch/arm64/kernel/head.S fs/pstore/ram.c mm/page_alloc.c mm/vmscan.c
2026-03-25 03:50:24 +09:00 · 2016-05-05 11:37:42 +05:30
parent d699f44b88 21d7f14b70
commit ae19efebd6
373 changed files with 10067 additions and 2891 deletions
--- a/Documentation/ABI/testing/sysfs-firmware-ofw
+++ b/Documentation/ABI/testing/sysfs-firmware-ofw
@@ -0,0 +1,28 @@
+What:		/sys/firmware/devicetree/*
+Date:		November 2013
+Contact:	Grant Likely <grant.likely@linaro.org>
+Description:
+		When using OpenFirmware or a Flattened Device Tree to enumerate
+		hardware, the device tree structure will be exposed in this
+		directory.
+
+		It is possible for multiple device-tree directories to exist.
+		Some device drivers use a separate detached device tree which
+		have no attachment to the system tree and will appear in a
+		different subdirectory under /sys/firmware/devicetree.
+
+		Userspace must not use the /sys/firmware/devicetree/base
+		path directly, but instead should follow /proc/device-tree
+		symlink. It is possible that the absolute path will change
+		in the future, but the symlink is the stable ABI.
+
+		The /proc/device-tree symlink replaces the devicetree /proc
+		filesystem support, and has largely the same semantics and
+		should be compatible with existing userspace.
+
+		The contents of /sys/firmware/devicetree/ is a
+		hierarchy of directories, one per device tree node. The
+		directory name is the resolved path component name (node
+		name plus address). Properties are represented as files
+		in the directory. The contents of each file is the exact
+		binary data from the device tree.
--- a/Documentation/devicetree/bindings/unittest.txt
+++ b/Documentation/devicetree/bindings/unittest.txt
@@ -0,0 +1,71 @@
+1) OF selftest platform device
+
+** selftest
+
+Required properties:
+- compatible: must be "selftest"
+
+All other properties are optional.
+
+Example:
+	selftest {
+		compatible = "selftest";
+		status = "okay";
+	};
+
+2) OF selftest i2c adapter platform device
+
+** platform device unittest adapter
+
+Required properties:
+- compatible: must be selftest-i2c-bus
+
+Children nodes contain selftest i2c devices.
+
+Example:
+	selftest-i2c-bus {
+		compatible = "selftest-i2c-bus";
+		status = "okay";
+	};
+
+3) OF selftest i2c device
+
+** I2C selftest device
+
+Required properties:
+- compatible: must be selftest-i2c-dev
+
+All other properties are optional
+
+Example:
+	selftest-i2c-dev {
+		compatible = "selftest-i2c-dev";
+		status = "okay";
+	};
+
+4) OF selftest i2c mux device
+
+** I2C selftest mux
+
+Required properties:
+- compatible: must be selftest-i2c-mux
+
+Children nodes contain selftest i2c bus nodes per channel.
+
+Example:
+	selftest-i2c-mux {
+		compatible = "selftest-i2c-mux";
+		status = "okay";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		channel-0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			i2c-dev {
+				reg = <8>;
+				compatible = "selftest-i2c-dev";
+				status = "okay";
+			};
+		};
+	};
--- a/Documentation/devicetree/changesets.txt
+++ b/Documentation/devicetree/changesets.txt
@@ -0,0 +1,40 @@
+A DT changeset is a method which allows one to apply changes
+in the live tree in such a way that either the full set of changes
+will be applied, or none of them will be. If an error occurs partway
+through applying the changeset, then the tree will be rolled back to the
+previous state. A changeset can also be removed after it has been
+applied.
+
+When a changeset is applied, all of the changes get applied to the tree
+at once before emitting OF_RECONFIG notifiers. This is so that the
+receiver sees a complete and consistent state of the tree when it
+receives the notifier.
+
+The sequence of a changeset is as follows.
+
+1. of_changeset_init() - initializes a changeset
+
+2. A number of DT tree change calls, of_changeset_attach_node(),
+of_changeset_detach_node(), of_changeset_add_property(),
+of_changeset_remove_property, of_changeset_update_property() to prepare
+a set of changes. No changes to the active tree are made at this point.
+All the change operations are recorded in the of_changeset 'entries'
+list.
+
+3. mutex_lock(of_mutex) - starts a changeset; The global of_mutex
+ensures there can only be one editor at a time.
+
+4. of_changeset_apply() - Apply the changes to the tree. Either the
+entire changeset will get applied, or if there is an error the tree will
+be restored to the previous state
+
+5. mutex_unlock(of_mutex) - All operations complete, release the mutex
+
+If a successfully applied changeset needs to be removed, it can be done
+with the following sequence.
+
+1. mutex_lock(of_mutex)
+
+2. of_changeset_revert()
+
+3. mutex_unlock(of_mutex)
--- a/Documentation/devicetree/dynamic-resolution-notes.txt
+++ b/Documentation/devicetree/dynamic-resolution-notes.txt
@@ -0,0 +1,25 @@
+Device Tree Dynamic Resolver Notes
+----------------------------------
+
+This document describes the implementation of the in-kernel
+Device Tree resolver, residing in drivers/of/resolver.c and is a
+companion document to Documentation/devicetree/dt-object-internal.txt[1]
+
+How the resolver works
+----------------------
+
+The resolver is given as an input an arbitrary tree compiled with the
+proper dtc option and having a /plugin/ tag. This generates the
+appropriate __fixups__ & __local_fixups__ nodes as described in [1].
+
+In sequence the resolver works by the following steps:
+
+1. Get the maximum device tree phandle value from the live tree + 1.
+2. Adjust all the local phandles of the tree to resolve by that amount.
+3. Using the __local__fixups__ node information adjust all local references
+   by the same amount.
+4. For each property in the __fixups__ node locate the node it references
+   in the live tree. This is the label used to tag the node.
+5. Retrieve the phandle of the target of the fixup.
+6. For each fixup in the property locate the node:property:offset location
+   and replace it with the phandle value.
--- a/Documentation/devicetree/overlay-notes.txt
+++ b/Documentation/devicetree/overlay-notes.txt
@@ -0,0 +1,133 @@
+Device Tree Overlay Notes
+-------------------------
+
+This document describes the implementation of the in-kernel
+device tree overlay functionality residing in drivers/of/overlay.c and is a
+companion document to Documentation/devicetree/dt-object-internal.txt[1] &
+Documentation/devicetree/dynamic-resolution-notes.txt[2]
+
+How overlays work
+-----------------
+
+A Device Tree's overlay purpose is to modify the kernel's live tree, and
+have the modification affecting the state of the the kernel in a way that
+is reflecting the changes.
+Since the kernel mainly deals with devices, any new device node that result
+in an active device should have it created while if the device node is either
+disabled or removed all together, the affected device should be deregistered.
+
+Lets take an example where we have a foo board with the following base tree
+which is taken from [1].
+
+---- foo.dts -----------------------------------------------------------------
+	/* FOO platform */
+	/ {
+		compatible = "corp,foo";
+
+		/* shared resources */
+		res: res {
+		};
+
+		/* On chip peripherals */
+		ocp: ocp {
+			/* peripherals that are always instantiated */
+			peripheral1 { ... };
+		}
+	};
+---- foo.dts -----------------------------------------------------------------
+
+The overlay bar.dts, when loaded (and resolved as described in [2]) should
+
+---- bar.dts -----------------------------------------------------------------
+/plugin/;	/* allow undefined label references and record them */
+/ {
+	....	/* various properties for loader use; i.e. part id etc. */
+	fragment@0 {
+		target = <&ocp>;
+		__overlay__ {
+			/* bar peripheral */
+			bar {
+				compatible = "corp,bar";
+				... /* various properties and child nodes */
+			}
+		};
+	};
+};
+---- bar.dts -----------------------------------------------------------------
+
+result in foo+bar.dts
+
+---- foo+bar.dts -------------------------------------------------------------
+	/* FOO platform + bar peripheral */
+	/ {
+		compatible = "corp,foo";
+
+		/* shared resources */
+		res: res {
+		};
+
+		/* On chip peripherals */
+		ocp: ocp {
+			/* peripherals that are always instantiated */
+			peripheral1 { ... };
+
+			/* bar peripheral */
+			bar {
+				compatible = "corp,bar";
+				... /* various properties and child nodes */
+			}
+		}
+	};
+---- foo+bar.dts -------------------------------------------------------------
+
+As a result of the the overlay, a new device node (bar) has been created
+so a bar platform device will be registered and if a matching device driver
+is loaded the device will be created as expected.
+
+Overlay in-kernel API
+--------------------------------
+
+The API is quite easy to use.
+
+1. Call of_overlay_create() to create and apply an overlay. The return value
+is a cookie identifying this overlay.
+
+2. Call of_overlay_destroy() to remove and cleanup the overlay previously
+created via the call to of_overlay_create(). Removal of an overlay that
+is stacked by another will not be permitted.
+
+Finally, if you need to remove all overlays in one-go, just call
+of_overlay_destroy_all() which will remove every single one in the correct
+order.
+
+Overlay DTS Format
+------------------
+
+The DTS of an overlay should have the following format:
+
+{
+	/* ignored properties by the overlay */
+
+	fragment@0 {	/* first child node */
+
+		target=<phandle>;	/* phandle target of the overlay */
+	or
+		target-path="/path";	/* target path of the overlay */
+
+		__overlay__ {
+			property-a;	/* add property-a to the target */
+			node-a {	/* add to an existing, or create a node-a */
+				...
+			};
+		};
+	}
+	fragment@1 {	/* second child node */
+		...
+	};
+	/* more fragments follow */
+}
+
+Using the non-phandle based target method allows one to use a base DT which does
+not contain a __symbols__ node, i.e. it was not compiled with the -@ option.
+The __symbols__ node is only required for the target=<phandle> method, since it
+contains the information required to map from a phandle to a tree location.
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1175,6 +1175,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 	i8042.notimeout	[HW] Ignore timeout condition signalled by controller
 	i8042.reset	[HW] Reset the controller during init and cleanup
 	i8042.unlock	[HW] Unlock (ignore) the keylock
+	i8042.kbdreset  [HW] Reset device connected to KBD port

 	i810=		[HW,DRM]

--- a/2
+++ b/2
@@ -1,6 +1,6 @@
 VERSION = 3
 PATCHLEVEL = 14
-SUBLEVEL = 29
+SUBLEVEL = 32
 EXTRAVERSION =
 NAME = Remembering Coco

--- a/arch/arc/boot/dts/nsimosci.dts
+++ b/arch/arc/boot/dts/nsimosci.dts
@@ -20,7 +20,7 @@
 		/* this is for console on PGU */
 		/* bootargs = "console=tty0 consoleblank=0"; */
 		/* this is for console on serial */
-		bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug";
+		bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug";
 	};

 	aliases {
@@ -46,9 +46,9 @@
 			#interrupt-cells = <1>;
 		};

-		uart0: serial@c0000000 {
+		uart0: serial@f0000000 {
 			compatible = "ns8250";
-			reg = <0xc0000000 0x2000>;
+			reg = <0xf0000000 0x2000>;
 			interrupts = <11>;
 			clock-frequency = <3686400>;
 			baud = <115200>;
@@ -57,21 +57,21 @@
 			no-loopback-test = <1>;
 		};

-		pgu0: pgu@c9000000 {
+		pgu0: pgu@f9000000 {
 			compatible = "snps,arcpgufb";
-			reg = <0xc9000000 0x400>;
+			reg = <0xf9000000 0x400>;
 		};

-		ps2: ps2@c9001000 {
+		ps2: ps2@f9001000 {
 			compatible = "snps,arc_ps2";
-			reg = <0xc9000400 0x14>;
+			reg = <0xf9000400 0x14>;
 			interrupts = <13>;
 			interrupt-names = "arc_ps2_irq";
 		};

-		eth0: ethernet@c0003000 {
+		eth0: ethernet@f0003000 {
 			compatible = "snps,oscilan";
-			reg = <0xc0003000 0x44>;
+			reg = <0xf0003000 0x44>;
 			interrupts = <7>, <8>;
 			interrupt-names = "rx", "tx";
 		};
--- a/arch/arc/include/asm/barrier.h
+++ b/arch/arc/include/asm/barrier.h
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __ASM_BARRIER_H
-#define __ASM_BARRIER_H
-
-#ifndef __ASSEMBLY__
-
-/* TODO-vineetg: Need to see what this does, don't we need sync anywhere */
-#define mb() __asm__ __volatile__ ("" : : : "memory")
-#define rmb() mb()
-#define wmb() mb()
-#define set_mb(var, value)  do { var = value; mb(); } while (0)
-#define set_wmb(var, value) do { var = value; wmb(); } while (0)
-#define read_barrier_depends()  mb()
-
-/* TODO-vineetg verify the correctness of macros here */
-#ifdef CONFIG_SMP
-#define smp_mb()        mb()
-#define smp_rmb()       rmb()
-#define smp_wmb()       wmb()
-#else
-#define smp_mb()        barrier()
-#define smp_rmb()       barrier()
-#define smp_wmb()       barrier()
-#endif
-
-#define smp_read_barrier_depends()      do { } while (0)
-
-#endif
-
-#endif
--- a/arch/arc/include/asm/linkage.h
+++ b/arch/arc/include/asm/linkage.h
@@ -13,20 +13,6 @@

 #define ASM_NL		 `	/* use '`' to mark new line in macro */

-/* Can't use the ENTRY macro in linux/linkage.h
- * gas considers ';' as comment vs. newline
- */
-.macro ARC_ENTRY name
-	.global \name
-	.align 4
-	\name:
-.endm
-
-.macro ARC_EXIT name
-#define ASM_PREV_SYM_ADDR(name)  .-##name
-	.size \ name, ASM_PREV_SYM_ADDR(\name)
-.endm
-
 /* annotation for data we want in DCCM - if enabled in .config */
 .macro ARCFP_DATA nm
 #ifdef CONFIG_ARC_HAS_DCCM
--- a/arch/arc/kernel/ctx_sw_asm.S
+++ b/arch/arc/kernel/ctx_sw_asm.S
@@ -10,9 +10,9 @@
 *  -This is the more "natural" hand written assembler
 */

+#include <linux/linkage.h>
 #include <asm/entry.h>       /* For the SAVE_* macros */
 #include <asm/asm-offsets.h>
-#include <asm/linkage.h>

 #define KSP_WORD_OFF 	((TASK_THREAD + THREAD_KSP) / 4)

@@ -62,4 +62,4 @@ __switch_to:
 	ld.ab   blink, [sp, 4]
 	j       [blink]

-ARC_EXIT __switch_to
+END(__switch_to)
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -141,7 +141,7 @@ VECTOR   EV_Extension            ; 0x130, Extn Intruction Excp  (0x26)
 VECTOR   reserved                ; Reserved Exceptions
 .endr

-#include <linux/linkage.h>   /* ARC_{EXTRY,EXIT} */
+#include <linux/linkage.h>   /* {EXTRY,EXIT} */
 #include <asm/entry.h>       /* SAVE_ALL_{INT1,INT2,SYS...} */
 #include <asm/errno.h>
 #include <asm/arcregs.h>
@@ -184,7 +184,7 @@ reserved:		; processor restart
 ; ---------------------------------------------
 ;  Level 2 ISR: Can interrupt a Level 1 ISR
 ; ---------------------------------------------
-ARC_ENTRY handle_interrupt_level2
+ENTRY(handle_interrupt_level2)

 	; TODO-vineetg for SMP this wont work
 	; free up r9 as scratchpad
@@ -225,14 +225,14 @@ ARC_ENTRY handle_interrupt_level2

 	b   ret_from_exception

-ARC_EXIT handle_interrupt_level2
+END(handle_interrupt_level2)

 #endif

 ; ---------------------------------------------
 ;  Level 1 ISR
 ; ---------------------------------------------
-ARC_ENTRY handle_interrupt_level1
+ENTRY(handle_interrupt_level1)

 	/* free up r9 as scratchpad */
 #ifdef CONFIG_SMP
@@ -265,7 +265,7 @@ ARC_ENTRY handle_interrupt_level1
 	sr r8, [AUX_IRQ_LV12]       ; clear bit in Sticky Status Reg

 	b   ret_from_exception
-ARC_EXIT handle_interrupt_level1
+END(handle_interrupt_level1)

 ;################### Non TLB Exception Handling #############################

@@ -273,7 +273,7 @@ ARC_EXIT handle_interrupt_level1
 ; Instruction Error Exception Handler
 ; ---------------------------------------------

-ARC_ENTRY instr_service
+ENTRY(instr_service)

 	EXCEPTION_PROLOGUE

@@ -284,13 +284,13 @@ ARC_ENTRY instr_service

 	bl  do_insterror_or_kprobe
 	b   ret_from_exception
-ARC_EXIT instr_service
+END(instr_service)

 ; ---------------------------------------------
 ; Memory Error Exception Handler
 ; ---------------------------------------------

-ARC_ENTRY mem_service
+ENTRY(mem_service)

 	EXCEPTION_PROLOGUE

@@ -301,13 +301,13 @@ ARC_ENTRY mem_service

 	bl  do_memory_error
 	b   ret_from_exception
-ARC_EXIT mem_service
+END(mem_service)

 ; ---------------------------------------------
 ; Machine Check Exception Handler
 ; ---------------------------------------------

-ARC_ENTRY EV_MachineCheck
+ENTRY(EV_MachineCheck)

 	EXCEPTION_PROLOGUE

@@ -331,13 +331,13 @@ ARC_ENTRY EV_MachineCheck

 	j  do_machine_check_fault

-ARC_EXIT EV_MachineCheck
+END(EV_MachineCheck)

 ; ---------------------------------------------
 ; Protection Violation Exception Handler
 ; ---------------------------------------------

-ARC_ENTRY EV_TLBProtV
+ENTRY(EV_TLBProtV)

 	EXCEPTION_PROLOGUE

@@ -385,12 +385,12 @@ ARC_ENTRY EV_TLBProtV

 	b   ret_from_exception

-ARC_EXIT EV_TLBProtV
+END(EV_TLBProtV)

 ; ---------------------------------------------
 ; Privilege Violation Exception Handler
 ; ---------------------------------------------
-ARC_ENTRY EV_PrivilegeV
+ENTRY(EV_PrivilegeV)

 	EXCEPTION_PROLOGUE

@@ -401,12 +401,12 @@ ARC_ENTRY EV_PrivilegeV

 	bl  do_privilege_fault
 	b   ret_from_exception
-ARC_EXIT EV_PrivilegeV
+END(EV_PrivilegeV)

 ; ---------------------------------------------
 ; Extension Instruction Exception Handler
 ; ---------------------------------------------
-ARC_ENTRY EV_Extension
+ENTRY(EV_Extension)

 	EXCEPTION_PROLOGUE

@@ -417,7 +417,7 @@ ARC_ENTRY EV_Extension

 	bl  do_extension_fault
 	b   ret_from_exception
-ARC_EXIT EV_Extension
+END(EV_Extension)

 ;######################### System Call Tracing #########################

@@ -504,7 +504,7 @@ trap_with_param:
 ;   (2) Break Points
 ;------------------------------------------------------------------

-ARC_ENTRY EV_Trap
+ENTRY(EV_Trap)

 	EXCEPTION_PROLOGUE

@@ -534,9 +534,9 @@ ARC_ENTRY EV_Trap
 	jl      [r9]        ; Entry into Sys Call Handler

 	; fall through to ret_from_system_call
-ARC_EXIT EV_Trap
+END(EV_Trap)

-ARC_ENTRY ret_from_system_call
+ENTRY(ret_from_system_call)

 	st  r0, [sp, PT_r0]     ; sys call return value in pt_regs

@@ -546,7 +546,7 @@ ARC_ENTRY ret_from_system_call
 ;
 ; If ret to user mode do we need to handle signals, schedule() et al.

-ARC_ENTRY ret_from_exception
+ENTRY(ret_from_exception)

 	; Pre-{IRQ,Trap,Exception} K/U mode from pt_regs->status32
 	ld  r8, [sp, PT_status32]   ; returning to User/Kernel Mode
@@ -728,9 +728,9 @@ not_level1_interrupt:
 debug_marker_syscall:
 	rtie

-ARC_EXIT ret_from_exception
+END(ret_from_exception)

-ARC_ENTRY ret_from_fork
+ENTRY(ret_from_fork)
 	; when the forked child comes here from the __switch_to function
 	; r0 has the last task pointer.
 	; put last task in scheduler queue
@@ -747,11 +747,11 @@ ARC_ENTRY ret_from_fork
 	; special case of kernel_thread entry point returning back due to
 	; kernel_execve() - pretend return from syscall to ret to userland
 	b    ret_from_exception
-ARC_EXIT ret_from_fork
+END(ret_from_fork)

 ;################### Special Sys Call Wrappers ##########################

-ARC_ENTRY sys_clone_wrapper
+ENTRY(sys_clone_wrapper)
 	SAVE_CALLEE_SAVED_USER
 	bl  @sys_clone
 	DISCARD_CALLEE_SAVED_USER
@@ -761,7 +761,7 @@ ARC_ENTRY sys_clone_wrapper
 	bnz  tracesys_exit

 	b ret_from_system_call
-ARC_EXIT sys_clone_wrapper
+END(sys_clone_wrapper)

 #ifdef CONFIG_ARC_DW2_UNWIND
 ; Workaround for bug 94179 (STAR ):
--- a/arch/arc/lib/memcmp.S
+++ b/arch/arc/lib/memcmp.S
@@ -6,7 +6,7 @@
 * published by the Free Software Foundation.
 */

-#include <asm/linkage.h>
+#include <linux/linkage.h>

 #ifdef __LITTLE_ENDIAN__
 #define WORD2 r2
@@ -16,7 +16,7 @@
 #define SHIFT r2
 #endif

-ARC_ENTRY memcmp
+ENTRY(memcmp)
 	or	r12,r0,r1
 	asl_s	r12,r12,30
 	sub	r3,r2,1
@@ -121,4 +121,4 @@ ARC_ENTRY memcmp
 .Lnil:
 	j_s.d	[blink]
 	mov	r0,0
-ARC_EXIT memcmp
+END(memcmp)
--- a/arch/arc/lib/memcpy-700.S
+++ b/arch/arc/lib/memcpy-700.S
@@ -6,9 +6,9 @@
 * published by the Free Software Foundation.
 */

-#include <asm/linkage.h>
+#include <linux/linkage.h>

-ARC_ENTRY memcpy
+ENTRY(memcpy)
 	or	r3,r0,r1
 	asl_s	r3,r3,30
 	mov_s	r5,r0
@@ -63,4 +63,4 @@ ARC_ENTRY memcpy
 .Lendbloop:
 	j_s.d	[blink]
 	stb	r12,[r5,0]
-ARC_EXIT memcpy
+END(memcpy)
--- a/arch/arc/lib/memset.S
+++ b/arch/arc/lib/memset.S
@@ -6,11 +6,11 @@
 * published by the Free Software Foundation.
 */

-#include <asm/linkage.h>
+#include <linux/linkage.h>

 #define SMALL	7 /* Must be at least 6 to deal with alignment/loop issues.  */

-ARC_ENTRY memset
+ENTRY(memset)
 	mov_s	r4,r0
 	or	r12,r0,r2
 	bmsk.f	r12,r12,1
@@ -46,14 +46,14 @@ ARC_ENTRY memset
 	stb.ab	r1,[r4,1]
 .Ltiny_end:
 	j_s	[blink]
-ARC_EXIT memset
+END(memset)

 ; memzero: @r0 = mem, @r1 = size_t
 ; memset:  @r0 = mem, @r1 = char, @r2 = size_t

-ARC_ENTRY memzero
+ENTRY(memzero)
    ; adjust bzero args to memset args
    mov r2, r1
    mov r1, 0
    b  memset    ;tail call so need to tinker with blink
-ARC_EXIT memzero
+END(memzero)
--- a/arch/arc/lib/strchr-700.S
+++ b/arch/arc/lib/strchr-700.S
@@ -11,9 +11,9 @@
   presence of the norm instruction makes it easier to operate on whole
   words branch-free.  */

-#include <asm/linkage.h>
+#include <linux/linkage.h>

-ARC_ENTRY strchr
+ENTRY(strchr)
 	extb_s	r1,r1
 	asl	r5,r1,8
 	bmsk	r2,r0,1
@@ -130,4 +130,4 @@ ARC_ENTRY strchr
 	j_s.d	[blink]
 	mov.mi	r0,0
 #endif /* ENDIAN */
-ARC_EXIT strchr
+END(strchr)
--- a/arch/arc/lib/strcmp.S
+++ b/arch/arc/lib/strcmp.S
@@ -13,9 +13,9 @@
   source 1; however, that would increase the overhead for loop setup / finish,
   and strcmp might often terminate early.  */

-#include <asm/linkage.h>
+#include <linux/linkage.h>

-ARC_ENTRY strcmp
+ENTRY(strcmp)
 	or	r2,r0,r1
 	bmsk_s	r2,r2,1
 	brne	r2,0,.Lcharloop
@@ -93,4 +93,4 @@ ARC_ENTRY strcmp
 .Lcmpend:
 	j_s.d	[blink]
 	sub	r0,r2,r3
-ARC_EXIT strcmp
+END(strcmp)
--- a/arch/arc/lib/strcpy-700.S
+++ b/arch/arc/lib/strcpy-700.S
@@ -16,9 +16,9 @@
   there, but the it is not likely to be taken often, and it
   would also be likey to cost an unaligned mispredict at the next call.  */

-#include <asm/linkage.h>
+#include <linux/linkage.h>

-ARC_ENTRY strcpy
+ENTRY(strcpy)
 	or	r2,r0,r1
 	bmsk_s	r2,r2,1
 	brne.d	r2,0,charloop
@@ -67,4 +67,4 @@ charloop:
 	brne.d	r3,0,charloop
 	stb.ab	r3,[r10,1]
 	j	[blink]
-ARC_EXIT strcpy
+END(strcpy)
--- a/arch/arc/lib/strlen.S
+++ b/arch/arc/lib/strlen.S
@@ -6,9 +6,9 @@
 * published by the Free Software Foundation.
 */

-#include <asm/linkage.h>
+#include <linux/linkage.h>

-ARC_ENTRY strlen
+ENTRY(strlen)
 	or	r3,r0,7
 	ld	r2,[r3,-7]
 	ld.a	r6,[r3,-3]
@@ -80,4 +80,4 @@ ARC_ENTRY strlen
 .Learly_end:
 	b.d	.Lend
 	sub_s.ne r1,r1,r1
-ARC_EXIT strlen
+END(strlen)
--- a/arch/arc/mm/tlbex.S
+++ b/arch/arc/mm/tlbex.S
@@ -260,7 +260,7 @@ ARCFP_CODE	;Fast Path Code, candidate for ICCM
 ; I-TLB Miss Exception Handler
 ;-----------------------------------------------------------------------------

-ARC_ENTRY EV_TLBMissI
+ENTRY(EV_TLBMissI)

 	TLBMISS_FREEUP_REGS

@@ -293,13 +293,13 @@ ARC_ENTRY EV_TLBMissI
 	TLBMISS_RESTORE_REGS
 	rtie

-ARC_EXIT EV_TLBMissI
+END(EV_TLBMissI)

 ;-----------------------------------------------------------------------------
 ; D-TLB Miss Exception Handler
 ;-----------------------------------------------------------------------------

-ARC_ENTRY EV_TLBMissD
+ENTRY(EV_TLBMissD)

 	TLBMISS_FREEUP_REGS

@@ -381,6 +381,4 @@ do_slow_path_pf:
 	bl  do_page_fault
 	b   ret_from_exception

-ARC_EXIT EV_TLBMissD
-
-ARC_ENTRY EV_TLBMissB   ; Bogus entry to measure sz of DTLBMiss hdlr
+END(EV_TLBMissD)
--- a/arch/arm/boot/dts/imx25.dtsi
+++ b/arch/arm/boot/dts/imx25.dtsi
@@ -158,7 +158,7 @@
 				#size-cells = <0>;
 				compatible = "fsl,imx25-cspi", "fsl,imx35-cspi";
 				reg = <0x43fa4000 0x4000>;
-				clocks = <&clks 62>, <&clks 62>;
+				clocks = <&clks 78>, <&clks 78>;
 				clock-names = "ipg", "per";
 				interrupts = <14>;
 				status = "disabled";
@@ -352,7 +352,7 @@
 				compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
 				#pwm-cells = <2>;
 				reg = <0x53fa0000 0x4000>;
-				clocks = <&clks 106>, <&clks 36>;
+				clocks = <&clks 106>, <&clks 52>;
 				clock-names = "ipg", "per";
 				interrupts = <36>;
 			};
@@ -371,7 +371,7 @@
 				compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
 				#pwm-cells = <2>;
 				reg = <0x53fa8000 0x4000>;
-				clocks = <&clks 107>, <&clks 36>;
+				clocks = <&clks 107>, <&clks 52>;
 				clock-names = "ipg", "per";
 				interrupts = <41>;
 			};
@@ -412,7 +412,7 @@
 			pwm4: pwm@53fc8000 {
 				compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
 				reg = <0x53fc8000 0x4000>;
-				clocks = <&clks 108>, <&clks 36>;
+				clocks = <&clks 108>, <&clks 52>;
 				clock-names = "ipg", "per";
 				interrupts = <42>;
 			};
@@ -458,7 +458,7 @@
 				compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
 				#pwm-cells = <2>;
 				reg = <0x53fe0000 0x4000>;
-				clocks = <&clks 105>, <&clks 36>;
+				clocks = <&clks 105>, <&clks 52>;
 				clock-names = "ipg", "per";
 				interrupts = <26>;
 			};
--- a/arch/arm/boot/dts/versatile-pb.dts
+++ b/arch/arm/boot/dts/versatile-pb.dts
@@ -46,5 +46,3 @@
 		};
 	};
 };
-
-#include <testcases.dtsi>
--- a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
@@ -427,205 +427,6 @@
 		};
 	};

-	etb@0,20010000 {
-		compatible = "arm,coresight-etb10", "arm,primecell";
-		reg = <0 0x20010000 0 0x1000>;
-
-		coresight-default-sink;
-		clocks = <&oscclk6a>;
-		clock-names = "apb_pclk";
-		port {
-			etb_in_port: endpoint@0 {
-				slave-mode;
-				remote-endpoint = <&replicator_out_port0>;
-			};
-		};
-	};
-
-	tpiu@0,20030000 {
-		compatible = "arm,coresight-tpiu", "arm,primecell";
-		reg = <0 0x20030000 0 0x1000>;
-
-		clocks = <&oscclk6a>;
-		clock-names = "apb_pclk";
-		port {
-			tpiu_in_port: endpoint@0 {
-				slave-mode;
-				remote-endpoint = <&replicator_out_port1>;
-			};
-		};
-	};
-
-	replicator {
-		/* non-configurable replicators don't show up on the
-		 * AMBA bus.  As such no need to add "arm,primecell".
-		 */
-		compatible = "arm,coresight-replicator";
-
-		ports {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			/* replicator output ports */
-			port@0 {
-				reg = <0>;
-				replicator_out_port0: endpoint {
-					remote-endpoint = <&etb_in_port>;
-				};
-			};
-
-			port@1 {
-				reg = <1>;
-				replicator_out_port1: endpoint {
-					remote-endpoint = <&tpiu_in_port>;
-				};
-			};
-
-			/* replicator input port */
-			port@2 {
-				reg = <0>;
-				replicator_in_port0: endpoint {
-					slave-mode;
-					remote-endpoint = <&funnel_out_port0>;
-				};
-			};
-		};
-	};
-
-	funnel@0,20040000 {
-		compatible = "arm,coresight-funnel", "arm,primecell";
-		reg = <0 0x20040000 0 0x1000>;
-
-		clocks = <&oscclk6a>;
-		clock-names = "apb_pclk";
-		ports {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			/* funnel output port */
-			port@0 {
-				reg = <0>;
-				funnel_out_port0: endpoint {
-					remote-endpoint =
-						<&replicator_in_port0>;
-				};
-			};
-
-			/* funnel input ports */
-			port@1 {
-				reg = <0>;
-				funnel_in_port0: endpoint {
-					slave-mode;
-					remote-endpoint = <&ptm0_out_port>;
-				};
-			};
-
-			port@2 {
-				reg = <1>;
-				funnel_in_port1: endpoint {
-					slave-mode;
-					remote-endpoint = <&ptm1_out_port>;
-				};
-			};
-
-			port@3 {
-				reg = <2>;
-				funnel_in_port2: endpoint {
-					slave-mode;
-					remote-endpoint = <&etm0_out_port>;
-				};
-			};
-
-			/* Input port #3 is for ITM, not supported here */
-
-			port@4 {
-				reg = <4>;
-				funnel_in_port4: endpoint {
-					slave-mode;
-					remote-endpoint = <&etm1_out_port>;
-				};
-			};
-
-			port@5 {
-				reg = <5>;
-				funnel_in_port5: endpoint {
-					slave-mode;
-					remote-endpoint = <&etm2_out_port>;
-				};
-			};
-		};
-	};
-
-	ptm@0,2201c000 {
-		compatible = "arm,coresight-etm3x", "arm,primecell";
-		reg = <0 0x2201c000 0 0x1000>;
-
-		cpu = <&cpu0>;
-		clocks = <&oscclk6a>;
-		clock-names = "apb_pclk";
-		port {
-			ptm0_out_port: endpoint {
-				remote-endpoint = <&funnel_in_port0>;
-			};
-		};
-	};
-
-	ptm@0,2201d000 {
-		compatible = "arm,coresight-etm3x", "arm,primecell";
-		reg = <0 0x2201d000 0 0x1000>;
-
-		cpu = <&cpu1>;
-		clocks = <&oscclk6a>;
-		clock-names = "apb_pclk";
-		port {
-			ptm1_out_port: endpoint {
-				remote-endpoint = <&funnel_in_port1>;
-			};
-		};
-	};
-
-	etm@0,2203c000 {
-		compatible = "arm,coresight-etm3x", "arm,primecell";
-		reg = <0 0x2203c000 0 0x1000>;
-
-		cpu = <&cpu2>;
-		clocks = <&oscclk6a>;
-		clock-names = "apb_pclk";
-		port {
-			etm0_out_port: endpoint {
-				remote-endpoint = <&funnel_in_port2>;
-			};
-		};
-	};
-
-	etm@0,2203d000 {
-		compatible = "arm,coresight-etm3x", "arm,primecell";
-		reg = <0 0x2203d000 0 0x1000>;
-
-		cpu = <&cpu3>;
-		clocks = <&oscclk6a>;
-		clock-names = "apb_pclk";
-		port {
-			etm1_out_port: endpoint {
-				remote-endpoint = <&funnel_in_port4>;
-			};
-		};
-	};
-
-	etm@0,2203e000 {
-		compatible = "arm,coresight-etm3x", "arm,primecell";
-		reg = <0 0x2203e000 0 0x1000>;
-
-		cpu = <&cpu4>;
-		clocks = <&oscclk6a>;
-		clock-names = "apb_pclk";
-		port {
-			etm2_out_port: endpoint {
-				remote-endpoint = <&funnel_in_port5>;
-			};
-		};
-	};
-
 	smb {
 		compatible = "simple-bus";

--- a/arch/arm/crypto/aes_glue.c
+++ b/arch/arm/crypto/aes_glue.c
@@ -93,6 +93,6 @@ module_exit(aes_fini);

 MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm (ASM)");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("aes");
-MODULE_ALIAS("aes-asm");
+MODULE_ALIAS_CRYPTO("aes");
+MODULE_ALIAS_CRYPTO("aes-asm");
 MODULE_AUTHOR("David McCullough <ucdevel@gmail.com>");
--- a/arch/arm/crypto/sha1_glue.c
+++ b/arch/arm/crypto/sha1_glue.c
@@ -171,5 +171,5 @@ module_exit(sha1_mod_fini);

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm (ARM)");
-MODULE_ALIAS("sha1");
+MODULE_ALIAS_CRYPTO("sha1");
 MODULE_AUTHOR("David McCullough <ucdevel@gmail.com>");
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -161,8 +161,8 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 		post_div_table[1].div = 1;
 		post_div_table[2].div = 1;
 		video_div_table[1].div = 1;
-		video_div_table[2].div = 1;
-	};
+		video_div_table[3].div = 1;
+	}

 	/*                   type                               name         parent_name  base     div_mask */
 	clk[pll1_sys]      = imx_clk_pllv3(IMX_PLLV3_SYS,	"pll1_sys",	"osc", base,        0x7f);
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -513,11 +513,11 @@ static void __init realtime_counter_init(void)
 	rate = clk_get_rate(sys_clk);
 	/* Numerator/denumerator values refer TRM Realtime Counter section */
 	switch (rate) {
-	case 1200000:
+	case 12000000:
 		num = 64;
 		den = 125;
 		break;
-	case 1300000:
+	case 13000000:
 		num = 768;
 		den = 1625;
 		break;
@@ -529,11 +529,11 @@ static void __init realtime_counter_init(void)
 		num = 192;
 		den = 625;
 		break;
-	case 2600000:
+	case 26000000:
 		num = 384;
 		den = 1625;
 		break;
-	case 2700000:
+	case 27000000:
 		num = 256;
 		den = 1125;
 		break;
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c
@@ -617,6 +617,7 @@ static struct platform_device ipmmu_device = {

 static struct renesas_intc_irqpin_config irqpin0_platform_data = {
 	.irq_base = irq_pin(0), /* IRQ0 -> IRQ7 */
+	.control_parent = true,
 };

 static struct resource irqpin0_resources[] = {
@@ -678,6 +679,7 @@ static struct platform_device irqpin1_device = {

 static struct renesas_intc_irqpin_config irqpin2_platform_data = {
 	.irq_base = irq_pin(16), /* IRQ16 -> IRQ23 */
+	.control_parent = true,
 };

 static struct resource irqpin2_resources[] = {
@@ -708,6 +710,7 @@ static struct platform_device irqpin2_device = {

 static struct renesas_intc_irqpin_config irqpin3_platform_data = {
 	.irq_base = irq_pin(24), /* IRQ24 -> IRQ31 */
+	.control_parent = true,
 };

 static struct resource irqpin3_resources[] = {
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -465,12 +465,21 @@ void __init dma_contiguous_remap(void)
 		map.type = MT_MEMORY_DMA_READY;

 		/*
-		 * Clear previous low-memory mapping
+		 * Clear previous low-memory mapping to ensure that the
+		 * TLB does not see any conflicting entries, then flush
+		 * the TLB of the old entries before creating new mappings.
+		 *
+		 * This ensures that any speculatively loaded TLB entries
+		 * (even though they may be rare) can not cause any problems,
+		 * and ensures that this code is architecturally compliant.
 		 */
 		for (addr = __phys_to_virt(start); addr < __phys_to_virt(end);
 		     addr += PMD_SIZE)
 			pmd_clear(pmd_off_k(addr));

+		flush_tlb_kernel_range(__phys_to_virt(start),
+				       __phys_to_virt(end));
+
 		iotable_init(&map, 1);
 	}
 }
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -512,6 +512,20 @@ config BUILD_ARM64_APPENDED_DTB_IMAGE_NAMES
 	  Space separated list of names of dtbs to append when
 	  building a concatenated Image.gz-dtb.

+config EFI
+	bool "UEFI runtime support"
+	depends on OF && !CPU_BIG_ENDIAN
+	select LIBFDT
+	select UCS2_STRING
+	select EFI_PARAMS_FROM_FDT
+	default y
+	help
+	  This option provides support for runtime services provided
+	  by UEFI firmware (such as non-volatile variables, realtime
+          clock, and platform reset). A UEFI stub is also provided to
+	  allow the kernel to be booted as an EFI application. This
+	  is only useful on systems that have UEFI firmware.
+
 endmenu

 menu "Userspace binary formats"
@@ -566,6 +580,8 @@ source "net/Kconfig"

 source "drivers/Kconfig"

+source "drivers/firmware/Kconfig"
+
 source "fs/Kconfig"

 source "arch/arm64/kvm/Kconfig"
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -0,0 +1,14 @@
+#ifndef _ASM_EFI_H
+#define _ASM_EFI_H
+
+#include <asm/io.h>
+
+#ifdef CONFIG_EFI
+extern void efi_init(void);
+extern void efi_idmap_init(void);
+#else
+#define efi_init()
+#define efi_idmap_init()
+#endif
+
+#endif /* _ASM_EFI_H */
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -4,6 +4,8 @@

 CPPFLAGS_vmlinux.lds	:= -DTEXT_OFFSET=$(TEXT_OFFSET)
 AFLAGS_head.o		:= -DTEXT_OFFSET=$(TEXT_OFFSET)
+CFLAGS_efi-stub.o 	:= -DTEXT_OFFSET=$(TEXT_OFFSET) \
+			   -I$(src)/../../../scripts/dtc/libfdt

 CFLAGS_REMOVE_ftrace.o = -pg
 CFLAGS_REMOVE_insn.o = -pg
@@ -30,6 +32,7 @@ arm64-obj-$(CONFIG_ARM64_CPU_SUSPEND)	+= sleep.o suspend.o
 arm64-obj-$(CONFIG_ARM_CPU_SUSPEND)	+= sleep.o suspend.o
 arm64-obj-$(CONFIG_JUMP_LABEL)		+= jump_label.o
 arm64-obj-$(CONFIG_KGDB)		+= kgdb.o
+arm64-obj-$(CONFIG_EFI)			+= efi.o efi-stub.o efi-entry.o

 arm64-obj-$(CONFIG_INSTABOOT)		+= hibernate.o

--- a/arch/arm64/kernel/efi-entry.S
+++ b/arch/arm64/kernel/efi-entry.S
@@ -0,0 +1,109 @@
+/*
+ * EFI entry point.
+ *
+ * Copyright (C) 2013, 2014 Red Hat, Inc.
+ * Author: Mark Salter <msalter@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/linkage.h>
+#include <linux/init.h>
+
+#include <asm/assembler.h>
+
+#define EFI_LOAD_ERROR 0x8000000000000001
+
+	__INIT
+
+	/*
+	 * We arrive here from the EFI boot manager with:
+	 *
+	 *    * CPU in little-endian mode
+	 *    * MMU on with identity-mapped RAM
+	 *    * Icache and Dcache on
+	 *
+	 * We will most likely be running from some place other than where
+	 * we want to be. The kernel image wants to be placed at TEXT_OFFSET
+	 * from start of RAM.
+	 */
+ENTRY(efi_stub_entry)
+	/*
+	 * Create a stack frame to save FP/LR with extra space
+	 * for image_addr variable passed to efi_entry().
+	 */
+	stp	x29, x30, [sp, #-32]!
+
+	/*
+	 * Call efi_entry to do the real work.
+	 * x0 and x1 are already set up by firmware. Current runtime
+	 * address of image is calculated and passed via *image_addr.
+	 *
+	 * unsigned long efi_entry(void *handle,
+	 *                         efi_system_table_t *sys_table,
+	 *                         unsigned long *image_addr) ;
+	 */
+	adrp	x8, _text
+	add	x8, x8, #:lo12:_text
+	add	x2, sp, 16
+	str	x8, [x2]
+	bl	efi_entry
+	cmn	x0, #1
+	b.eq	efi_load_fail
+
+	/*
+	 * efi_entry() will have relocated the kernel image if necessary
+	 * and we return here with device tree address in x0 and the kernel
+	 * entry point stored at *image_addr. Save those values in registers
+	 * which are callee preserved.
+	 */
+	mov	x20, x0		// DTB address
+	ldr	x0, [sp, #16]	// relocated _text address
+	mov	x21, x0
+
+	/*
+	 * Flush dcache covering current runtime addresses
+	 * of kernel text/data. Then flush all of icache.
+	 */
+	adrp	x1, _text
+	add	x1, x1, #:lo12:_text
+	adrp	x2, _edata
+	add	x2, x2, #:lo12:_edata
+	sub	x1, x2, x1
+
+	bl	__flush_dcache_area
+	ic	ialluis
+
+	/* Turn off Dcache and MMU */
+	mrs	x0, CurrentEL
+	cmp	x0, #PSR_MODE_EL2t
+	ccmp	x0, #PSR_MODE_EL2h, #0x4, ne
+	b.ne	1f
+	mrs	x0, sctlr_el2
+	bic	x0, x0, #1 << 0	// clear SCTLR.M
+	bic	x0, x0, #1 << 2	// clear SCTLR.C
+	msr	sctlr_el2, x0
+	isb
+	b	2f
+1:
+	mrs	x0, sctlr_el1
+	bic	x0, x0, #1 << 0	// clear SCTLR.M
+	bic	x0, x0, #1 << 2	// clear SCTLR.C
+	msr	sctlr_el1, x0
+	isb
+2:
+	/* Jump to kernel entry point */
+	mov	x0, x20
+	mov	x1, xzr
+	mov	x2, xzr
+	mov	x3, xzr
+	br	x21
+
+efi_load_fail:
+	mov	x0, #EFI_LOAD_ERROR
+	ldp	x29, x30, [sp], #32
+	ret
+
+ENDPROC(efi_stub_entry)
--- a/arch/arm64/kernel/efi-stub.c
+++ b/arch/arm64/kernel/efi-stub.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2013, 2014 Linaro Ltd;  <roy.franz@linaro.org>
+ *
+ * This file implements the EFI boot stub for the arm64 kernel.
+ * Adapted from ARM version by Mark Salter <msalter@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/efi.h>
+#include <linux/libfdt.h>
+#include <asm/sections.h>
+
+/*
+ * AArch64 requires the DTB to be 8-byte aligned in the first 512MiB from
+ * start of kernel and may not cross a 2MiB boundary. We set alignment to
+ * 2MiB so we know it won't cross a 2MiB boundary.
+ */
+#define EFI_FDT_ALIGN	SZ_2M   /* used by allocate_new_fdt_and_exit_boot() */
+#define MAX_FDT_OFFSET	SZ_512M
+
+#define efi_call_early(f, ...) sys_table_arg->boottime->f(__VA_ARGS__)
+
+static void efi_char16_printk(efi_system_table_t *sys_table_arg,
+			      efi_char16_t *str);
+
+static efi_status_t efi_open_volume(efi_system_table_t *sys_table,
+				    void *__image, void **__fh);
+static efi_status_t efi_file_close(void *handle);
+
+static efi_status_t
+efi_file_read(void *handle, unsigned long *size, void *addr);
+
+static efi_status_t
+efi_file_size(efi_system_table_t *sys_table, void *__fh,
+	      efi_char16_t *filename_16, void **handle, u64 *file_sz);
+
+/* Include shared EFI stub code */
+#include "../../../drivers/firmware/efi/efi-stub-helper.c"
+#include "../../../drivers/firmware/efi/fdt.c"
+#include "../../../drivers/firmware/efi/arm-stub.c"
+
+
+static efi_status_t handle_kernel_image(efi_system_table_t *sys_table,
+					unsigned long *image_addr,
+					unsigned long *image_size,
+					unsigned long *reserve_addr,
+					unsigned long *reserve_size,
+					unsigned long dram_base,
+					efi_loaded_image_t *image)
+{
+	efi_status_t status;
+	unsigned long kernel_size, kernel_memsize = 0;
+
+	/* Relocate the image, if required. */
+	kernel_size = _edata - _text;
+	if (*image_addr != (dram_base + TEXT_OFFSET)) {
+		kernel_memsize = kernel_size + (_end - _edata);
+		status = efi_relocate_kernel(sys_table, image_addr,
+					     kernel_size, kernel_memsize,
+					     dram_base + TEXT_OFFSET,
+					     PAGE_SIZE);
+		if (status != EFI_SUCCESS) {
+			pr_efi_err(sys_table, "Failed to relocate kernel\n");
+			return status;
+		}
+		if (*image_addr != (dram_base + TEXT_OFFSET)) {
+			pr_efi_err(sys_table, "Failed to alloc kernel memory\n");
+			efi_free(sys_table, kernel_memsize, *image_addr);
+			return EFI_ERROR;
+		}
+		*image_size = kernel_memsize;
+	}
+
+
+	return EFI_SUCCESS;
+}
--- a/arch/arm64/kernel/efi.c
+++ b/arch/arm64/kernel/efi.c
@@ -0,0 +1,469 @@
+/*
+ * Extensible Firmware Interface
+ *
+ * Based on Extensible Firmware Interface Specification version 2.4
+ *
+ * Copyright (C) 2013, 2014 Linaro Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/efi.h>
+#include <linux/export.h>
+#include <linux/memblock.h>
+#include <linux/bootmem.h>
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include <asm/cacheflush.h>
+#include <asm/efi.h>
+#include <asm/tlbflush.h>
+#include <asm/mmu_context.h>
+
+struct efi_memory_map memmap;
+
+static efi_runtime_services_t *runtime;
+
+static u64 efi_system_table;
+
+static int uefi_debug __initdata;
+static int __init uefi_debug_setup(char *str)
+{
+	uefi_debug = 1;
+
+	return 0;
+}
+early_param("uefi_debug", uefi_debug_setup);
+
+static int __init is_normal_ram(efi_memory_desc_t *md)
+{
+	if (md->attribute & EFI_MEMORY_WB)
+		return 1;
+	return 0;
+}
+
+static void __init efi_setup_idmap(void)
+{
+	struct memblock_region *r;
+	efi_memory_desc_t *md;
+	u64 paddr, npages, size;
+
+	for_each_memblock(memory, r)
+		create_id_mapping(r->base, r->size, 0);
+
+	/* map runtime io spaces */
+	for_each_efi_memory_desc(&memmap, md) {
+		if (!(md->attribute & EFI_MEMORY_RUNTIME) || is_normal_ram(md))
+			continue;
+		paddr = md->phys_addr;
+		npages = md->num_pages;
+		memrange_efi_to_native(&paddr, &npages);
+		size = npages << PAGE_SHIFT;
+		create_id_mapping(paddr, size, 1);
+	}
+}
+
+static int __init uefi_init(void)
+{
+	efi_char16_t *c16;
+	char vendor[100] = "unknown";
+	int i, retval;
+
+	efi.systab = early_memremap(efi_system_table,
+				    sizeof(efi_system_table_t));
+	if (efi.systab == NULL) {
+		pr_warn("Unable to map EFI system table.\n");
+		return -ENOMEM;
+	}
+
+	set_bit(EFI_BOOT, &efi.flags);
+	set_bit(EFI_64BIT, &efi.flags);
+
+	/*
+	 * Verify the EFI Table
+	 */
+	if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) {
+		pr_err("System table signature incorrect\n");
+		return -EINVAL;
+	}
+	if ((efi.systab->hdr.revision >> 16) < 2)
+		pr_warn("Warning: EFI system table version %d.%02d, expected 2.00 or greater\n",
+			efi.systab->hdr.revision >> 16,
+			efi.systab->hdr.revision & 0xffff);
+
+	/* Show what we know for posterity */
+	c16 = early_memremap(efi.systab->fw_vendor,
+			     sizeof(vendor));
+	if (c16) {
+		for (i = 0; i < (int) sizeof(vendor) - 1 && *c16; ++i)
+			vendor[i] = c16[i];
+		vendor[i] = '\0';
+	}
+
+	pr_info("EFI v%u.%.02u by %s\n",
+		efi.systab->hdr.revision >> 16,
+		efi.systab->hdr.revision & 0xffff, vendor);
+
+	retval = efi_config_init(NULL);
+	if (retval == 0)
+		set_bit(EFI_CONFIG_TABLES, &efi.flags);
+
+	early_memunmap(c16, sizeof(vendor));
+	early_memunmap(efi.systab,  sizeof(efi_system_table_t));
+
+	return retval;
+}
+
+static __initdata char memory_type_name[][32] = {
+	{"Reserved"},
+	{"Loader Code"},
+	{"Loader Data"},
+	{"Boot Code"},
+	{"Boot Data"},
+	{"Runtime Code"},
+	{"Runtime Data"},
+	{"Conventional Memory"},
+	{"Unusable Memory"},
+	{"ACPI Reclaim Memory"},
+	{"ACPI Memory NVS"},
+	{"Memory Mapped I/O"},
+	{"MMIO Port Space"},
+	{"PAL Code"},
+};
+
+/*
+ * Return true for RAM regions we want to permanently reserve.
+ */
+static __init int is_reserve_region(efi_memory_desc_t *md)
+{
+	if (!is_normal_ram(md))
+		return 0;
+
+	if (md->attribute & EFI_MEMORY_RUNTIME)
+		return 1;
+
+	if (md->type == EFI_ACPI_RECLAIM_MEMORY ||
+	    md->type == EFI_RESERVED_TYPE)
+		return 1;
+
+	return 0;
+}
+
+static __init void reserve_regions(void)
+{
+	efi_memory_desc_t *md;
+	u64 paddr, npages, size;
+
+	if (uefi_debug)
+		pr_info("Processing EFI memory map:\n");
+
+	for_each_efi_memory_desc(&memmap, md) {
+		paddr = md->phys_addr;
+		npages = md->num_pages;
+
+		if (uefi_debug)
+			pr_info("  0x%012llx-0x%012llx [%s]",
+				paddr, paddr + (npages << EFI_PAGE_SHIFT) - 1,
+				memory_type_name[md->type]);
+
+		memrange_efi_to_native(&paddr, &npages);
+		size = npages << PAGE_SHIFT;
+
+		if (is_normal_ram(md))
+			early_init_dt_add_memory_arch(paddr, size);
+
+		if (is_reserve_region(md) ||
+		    md->type == EFI_BOOT_SERVICES_CODE ||
+		    md->type == EFI_BOOT_SERVICES_DATA) {
+			memblock_reserve(paddr, size);
+			if (uefi_debug)
+				pr_cont("*");
+		}
+
+		if (uefi_debug)
+			pr_cont("\n");
+	}
+}
+
+
+static u64 __init free_one_region(u64 start, u64 end)
+{
+	u64 size = end - start;
+
+	if (uefi_debug)
+		pr_info("  EFI freeing: 0x%012llx-0x%012llx\n",	start, end - 1);
+
+	free_bootmem_late(start, size);
+	return size;
+}
+
+static u64 __init free_region(u64 start, u64 end)
+{
+	u64 map_start, map_end, total = 0;
+
+	if (end <= start)
+		return total;
+
+	map_start = (u64)memmap.phys_map;
+	map_end = PAGE_ALIGN(map_start + (memmap.map_end - memmap.map));
+	map_start &= PAGE_MASK;
+
+	if (start < map_end && end > map_start) {
+		/* region overlaps UEFI memmap */
+		if (start < map_start)
+			total += free_one_region(start, map_start);
+
+		if (map_end < end)
+			total += free_one_region(map_end, end);
+	} else
+		total += free_one_region(start, end);
+
+	return total;
+}
+
+static void __init free_boot_services(void)
+{
+	u64 total_freed = 0;
+	u64 keep_end, free_start, free_end;
+	efi_memory_desc_t *md;
+
+	/*
+	 * If kernel uses larger pages than UEFI, we have to be careful
+	 * not to inadvertantly free memory we want to keep if there is
+	 * overlap at the kernel page size alignment. We do not want to
+	 * free is_reserve_region() memory nor the UEFI memmap itself.
+	 *
+	 * The memory map is sorted, so we keep track of the end of
+	 * any previous region we want to keep, remember any region
+	 * we want to free and defer freeing it until we encounter
+	 * the next region we want to keep. This way, before freeing
+	 * it, we can clip it as needed to avoid freeing memory we
+	 * want to keep for UEFI.
+	 */
+
+	keep_end = 0;
+	free_start = 0;
+
+	for_each_efi_memory_desc(&memmap, md) {
+		u64 paddr, npages, size;
+
+		if (is_reserve_region(md)) {
+			/*
+			 * We don't want to free any memory from this region.
+			 */
+			if (free_start) {
+				/* adjust free_end then free region */
+				if (free_end > md->phys_addr)
+					free_end -= PAGE_SIZE;
+				total_freed += free_region(free_start, free_end);
+				free_start = 0;
+			}
+			keep_end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
+			continue;
+		}
+
+		if (md->type != EFI_BOOT_SERVICES_CODE &&
+		    md->type != EFI_BOOT_SERVICES_DATA) {
+			/* no need to free this region */
+			continue;
+		}
+
+		/*
+		 * We want to free memory from this region.
+		 */
+		paddr = md->phys_addr;
+		npages = md->num_pages;
+		memrange_efi_to_native(&paddr, &npages);
+		size = npages << PAGE_SHIFT;
+
+		if (free_start) {
+			if (paddr <= free_end)
+				free_end = paddr + size;
+			else {
+				total_freed += free_region(free_start, free_end);
+				free_start = paddr;
+				free_end = paddr + size;
+			}
+		} else {
+			free_start = paddr;
+			free_end = paddr + size;
+		}
+		if (free_start < keep_end) {
+			free_start += PAGE_SIZE;
+			if (free_start >= free_end)
+				free_start = 0;
+		}
+	}
+	if (free_start)
+		total_freed += free_region(free_start, free_end);
+
+	if (total_freed)
+		pr_info("Freed 0x%llx bytes of EFI boot services memory",
+			total_freed);
+}
+
+void __init efi_init(void)
+{
+	struct efi_fdt_params params;
+
+	/* Grab UEFI information placed in FDT by stub */
+	if (!efi_get_fdt_params(&params, uefi_debug))
+		return;
+
+	efi_system_table = params.system_table;
+
+	memblock_reserve(params.mmap & PAGE_MASK,
+			 PAGE_ALIGN(params.mmap_size + (params.mmap & ~PAGE_MASK)));
+	memmap.phys_map = (void *)params.mmap;
+	memmap.map = early_memremap(params.mmap, params.mmap_size);
+	memmap.map_end = memmap.map + params.mmap_size;
+	memmap.desc_size = params.desc_size;
+	memmap.desc_version = params.desc_ver;
+
+	if (uefi_init() < 0)
+		return;
+
+	reserve_regions();
+}
+
+void __init efi_idmap_init(void)
+{
+	if (!efi_enabled(EFI_BOOT))
+		return;
+
+	/* boot time idmap_pg_dir is incomplete, so fill in missing parts */
+	efi_setup_idmap();
+}
+
+static int __init remap_region(efi_memory_desc_t *md, void **new)
+{
+	u64 paddr, vaddr, npages, size;
+
+	paddr = md->phys_addr;
+	npages = md->num_pages;
+	memrange_efi_to_native(&paddr, &npages);
+	size = npages << PAGE_SHIFT;
+
+	if (is_normal_ram(md))
+		vaddr = (__force u64)ioremap_cache(paddr, size);
+	else
+		vaddr = (__force u64)ioremap(paddr, size);
+
+	if (!vaddr) {
+		pr_err("Unable to remap 0x%llx pages @ %p\n",
+		       npages, (void *)paddr);
+		return 0;
+	}
+
+	/* adjust for any rounding when EFI and system pagesize differs */
+	md->virt_addr = vaddr + (md->phys_addr - paddr);
+
+	if (uefi_debug)
+		pr_info("  EFI remap 0x%012llx => %p\n",
+			md->phys_addr, (void *)md->virt_addr);
+
+	memcpy(*new, md, memmap.desc_size);
+	*new += memmap.desc_size;
+
+	return 1;
+}
+
+/*
+ * Switch UEFI from an identity map to a kernel virtual map
+ */
+static int __init arm64_enter_virtual_mode(void)
+{
+	efi_memory_desc_t *md;
+	phys_addr_t virtmap_phys;
+	void *virtmap, *virt_md;
+	efi_status_t status;
+	u64 mapsize;
+	int count = 0;
+	unsigned long flags;
+
+	if (!efi_enabled(EFI_BOOT)) {
+		pr_info("EFI services will not be available.\n");
+		return -1;
+	}
+
+	pr_info("Remapping and enabling EFI services.\n");
+
+	/* replace early memmap mapping with permanent mapping */
+	mapsize = memmap.map_end - memmap.map;
+	early_memunmap(memmap.map, mapsize);
+	memmap.map = (__force void *)ioremap_cache((phys_addr_t)memmap.phys_map,
+						   mapsize);
+	memmap.map_end = memmap.map + mapsize;
+
+	efi.memmap = &memmap;
+
+	/* Map the runtime regions */
+	virtmap = kmalloc(mapsize, GFP_KERNEL);
+	if (!virtmap) {
+		pr_err("Failed to allocate EFI virtual memmap\n");
+		return -1;
+	}
+	virtmap_phys = virt_to_phys(virtmap);
+	virt_md = virtmap;
+
+	for_each_efi_memory_desc(&memmap, md) {
+		if (!(md->attribute & EFI_MEMORY_RUNTIME))
+			continue;
+		if (remap_region(md, &virt_md))
+			++count;
+	}
+
+	efi.systab = (__force void *)efi_lookup_mapped_addr(efi_system_table);
+	if (efi.systab)
+		set_bit(EFI_SYSTEM_TABLES, &efi.flags);
+
+	local_irq_save(flags);
+	cpu_switch_mm(idmap_pg_dir, &init_mm);
+
+	/* Call SetVirtualAddressMap with the physical address of the map */
+	runtime = efi.systab->runtime;
+	efi.set_virtual_address_map = runtime->set_virtual_address_map;
+
+	status = efi.set_virtual_address_map(count * memmap.desc_size,
+					     memmap.desc_size,
+					     memmap.desc_version,
+					     (efi_memory_desc_t *)virtmap_phys);
+	cpu_set_reserved_ttbr0();
+	flush_tlb_all();
+	local_irq_restore(flags);
+
+	kfree(virtmap);
+
+	free_boot_services();
+
+	if (status != EFI_SUCCESS) {
+		pr_err("Failed to set EFI virtual address map! [%lx]\n",
+			status);
+		return -1;
+	}
+
+	/* Set up runtime services function pointers */
+	runtime = efi.systab->runtime;
+	efi.get_time = runtime->get_time;
+	efi.set_time = runtime->set_time;
+	efi.get_wakeup_time = runtime->get_wakeup_time;
+	efi.set_wakeup_time = runtime->set_wakeup_time;
+	efi.get_variable = runtime->get_variable;
+	efi.get_next_variable = runtime->get_next_variable;
+	efi.set_variable = runtime->set_variable;
+	efi.query_variable_info = runtime->query_variable_info;
+	efi.update_capsule = runtime->update_capsule;
+	efi.query_capsule_caps = runtime->query_capsule_caps;
+	efi.get_next_high_mono_count = runtime->get_next_high_mono_count;
+	efi.reset_system = runtime->reset_system;
+
+	set_bit(EFI_RUNTIME_SERVICES, &efi.flags);
+
+	return 0;
+}
+early_initcall(arm64_enter_virtual_mode);
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -97,11 +97,21 @@
 	/*
 	 * DO NOT MODIFY. Image header expected by Linux boot-loaders.
 	 */
+#ifdef CONFIG_EFI
+efi_head:
+	/*
+	 * This add instruction has no meaningful effect except that
+	 * its opcode forms the magic "MZ" signature required by UEFI.
+	 */
+	add	x13, x18, #0x16
+	b	stext
+#else
 	b	stext				// branch to kernel start, magic
 	.long	0				// reserved
 	.quad	_kernel_offset_le		// Image load offset from start of RAM, little-endian
 	.quad	_kernel_size_le			// Effective size of kernel image, little-endian
 	.quad	_kernel_flags_le		// Informative flags, little-endian
+#endif
 	.quad	0				// reserved
 	.quad	0				// reserved
 	.quad	0				// reserved
@@ -109,7 +119,109 @@
 	.byte	0x52
 	.byte	0x4d
 	.byte	0x64
+#ifdef CONFIG_EFI
+	.long	pe_header - efi_head		// Offset to the PE header.
+#else
 	.word	0				// reserved
+#endif
+
+#ifdef CONFIG_EFI
+	.align 3
+pe_header:
+	.ascii	"PE"
+	.short 	0
+coff_header:
+	.short	0xaa64				// AArch64
+	.short	2				// nr_sections
+	.long	0 				// TimeDateStamp
+	.long	0				// PointerToSymbolTable
+	.long	1				// NumberOfSymbols
+	.short	section_table - optional_header	// SizeOfOptionalHeader
+	.short	0x206				// Characteristics.
+						// IMAGE_FILE_DEBUG_STRIPPED |
+						// IMAGE_FILE_EXECUTABLE_IMAGE |
+						// IMAGE_FILE_LINE_NUMS_STRIPPED
+optional_header:
+	.short	0x20b				// PE32+ format
+	.byte	0x02				// MajorLinkerVersion
+	.byte	0x14				// MinorLinkerVersion
+	.long	_edata - stext			// SizeOfCode
+	.long	0				// SizeOfInitializedData
+	.long	0				// SizeOfUninitializedData
+	.long	efi_stub_entry - efi_head	// AddressOfEntryPoint
+	.long	stext - efi_head		// BaseOfCode
+
+extra_header_fields:
+	.quad	0				// ImageBase
+	.long	0x20				// SectionAlignment
+	.long	0x8				// FileAlignment
+	.short	0				// MajorOperatingSystemVersion
+	.short	0				// MinorOperatingSystemVersion
+	.short	0				// MajorImageVersion
+	.short	0				// MinorImageVersion
+	.short	0				// MajorSubsystemVersion
+	.short	0				// MinorSubsystemVersion
+	.long	0				// Win32VersionValue
+
+	.long	_edata - efi_head		// SizeOfImage
+
+	// Everything before the kernel image is considered part of the header
+	.long	stext - efi_head		// SizeOfHeaders
+	.long	0				// CheckSum
+	.short	0xa				// Subsystem (EFI application)
+	.short	0				// DllCharacteristics
+	.quad	0				// SizeOfStackReserve
+	.quad	0				// SizeOfStackCommit
+	.quad	0				// SizeOfHeapReserve
+	.quad	0				// SizeOfHeapCommit
+	.long	0				// LoaderFlags
+	.long	0x6				// NumberOfRvaAndSizes
+
+	.quad	0				// ExportTable
+	.quad	0				// ImportTable
+	.quad	0				// ResourceTable
+	.quad	0				// ExceptionTable
+	.quad	0				// CertificationTable
+	.quad	0				// BaseRelocationTable
+
+	// Section table
+section_table:
+
+	/*
+	 * The EFI application loader requires a relocation section
+	 * because EFI applications must be relocatable.  This is a
+	 * dummy section as far as we are concerned.
+	 */
+	.ascii	".reloc"
+	.byte	0
+	.byte	0			// end of 0 padding of section name
+	.long	0
+	.long	0
+	.long	0			// SizeOfRawData
+	.long	0			// PointerToRawData
+	.long	0			// PointerToRelocations
+	.long	0			// PointerToLineNumbers
+	.short	0			// NumberOfRelocations
+	.short	0			// NumberOfLineNumbers
+	.long	0x42100040		// Characteristics (section flags)
+
+
+	.ascii	".text"
+	.byte	0
+	.byte	0
+	.byte	0        		// end of 0 padding of section name
+	.long	_edata - stext		// VirtualSize
+	.long	stext - efi_head	// VirtualAddress
+	.long	_edata - stext		// SizeOfRawData
+	.long	stext - efi_head	// PointerToRawData
+
+	.long	0		// PointerToRelocations (0 for executables)
+	.long	0		// PointerToLineNumbers (0 for executables)
+	.short	0		// NumberOfRelocations  (0 for executables)
+	.short	0		// NumberOfLineNumbers  (0 for executables)
+	.long	0xe0500020	// Characteristics (section flags)
+	.align 5
+#endif

 ENTRY(stext)
 	mov	x21, x0				// x21=FDT
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -42,6 +42,7 @@
 #include <linux/memblock.h>
 #include <linux/of_fdt.h>
 #include <linux/of_platform.h>
+#include <linux/efi.h>

 #include <asm/fixmap.h>
 #include <asm/cputype.h>
@@ -56,6 +57,7 @@
 #include <asm/traps.h>
 #include <asm/memblock.h>
 #include <asm/psci.h>
+#include <asm/efi.h>

 unsigned int processor_id;
 EXPORT_SYMBOL(processor_id);
@@ -380,11 +382,14 @@ void __init setup_arch(char **cmdline_p)

 	parse_early_param();

+	efi_init();
 	arm64_memblock_init();

 	paging_init();
 	request_standard_resources();

+	efi_idmap_init();
+
 	unflatten_device_tree();

 	psci_init();
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -477,6 +477,9 @@ efi_init (void)
 	char *cp, vendor[100] = "unknown";
 	int i;

+	set_bit(EFI_BOOT, &efi.flags);
+	set_bit(EFI_64BIT, &efi.flags);
+
 	/*
 	 * It's too early to be able to use the standard kernel command line
 	 * support...
@@ -529,6 +532,8 @@ efi_init (void)
 	       efi.systab->hdr.revision >> 16,
 	       efi.systab->hdr.revision & 0xffff, vendor);

+	set_bit(EFI_SYSTEM_TABLES, &efi.flags);
+
 	palo_phys      = EFI_INVALID_TABLE_ADDR;

 	if (efi_config_init(arch_tables) != 0)
@@ -657,6 +662,8 @@ efi_enter_virtual_mode (void)
 		return;
 	}

+	set_bit(EFI_RUNTIME_SERVICES, &efi.flags);
+
 	/*
 	 * Now that EFI is in virtual mode, we call the EFI functions more
 	 * efficiently:
--- a/arch/parisc/include/asm/ldcw.h
+++ b/arch/parisc/include/asm/ldcw.h
@@ -33,11 +33,18 @@

 #endif /*!CONFIG_PA20*/

-/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
+/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.
+   We don't explicitly expose that "*a" may be written as reload
+   fails to find a register in class R1_REGS when "a" needs to be
+   reloaded when generating 64-bit PIC code.  Instead, we clobber
+   memory to indicate to the compiler that the assembly code reads
+   or writes to items other than those listed in the input and output
+   operands.  This may pessimize the code somewhat but __ldcw is
+   usually used within code blocks surrounded by memory barriors.  */
 #define __ldcw(a) ({						\
 	unsigned __ret;						\
-	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
-		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
+	__asm__ __volatile__(__LDCW " 0(%1),%0"			\
+		: "=r" (__ret) : "r" (a) : "memory");		\
 	__ret;							\
 })

--- a/arch/powerpc/crypto/sha1.c
+++ b/arch/powerpc/crypto/sha1.c
@@ -154,4 +154,5 @@ module_exit(sha1_powerpc_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");

-MODULE_ALIAS("sha1-powerpc");
+MODULE_ALIAS_CRYPTO("sha1");
+MODULE_ALIAS_CRYPTO("sha1-powerpc");
--- a/arch/powerpc/include/asm/dcr-mmio.h
+++ b/arch/powerpc/include/asm/dcr-mmio.h
@@ -51,10 +51,6 @@ static inline void dcr_write_mmio(dcr_host_mmio_t host,
 	out_be32(host.token + ((host.base + dcr_n) * host.stride), value);
 }

-extern u64 of_translate_dcr_address(struct device_node *dev,
-				    unsigned int dcr_n,
-				    unsigned int *stride);
-
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_DCR_MMIO_H */

--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -838,76 +838,6 @@ int cpu_to_chip_id(int cpu)
 }
 EXPORT_SYMBOL(cpu_to_chip_id);

-#ifdef CONFIG_PPC_PSERIES
-/*
- * Fix up the uninitialized fields in a new device node:
- * name, type and pci-specific fields
- */
-
-static int of_finish_dynamic_node(struct device_node *node)
-{
-	struct device_node *parent = of_get_parent(node);
-	int err = 0;
-	const phandle *ibm_phandle;
-
-	node->name = of_get_property(node, "name", NULL);
-	node->type = of_get_property(node, "device_type", NULL);
-
-	if (!node->name)
-		node->name = "<NULL>";
-	if (!node->type)
-		node->type = "<NULL>";
-
-	if (!parent) {
-		err = -ENODEV;
-		goto out;
-	}
-
-	/* We don't support that function on PowerMac, at least
-	 * not yet
-	 */
-	if (machine_is(powermac))
-		return -ENODEV;
-
-	/* fix up new node's phandle field */
-	if ((ibm_phandle = of_get_property(node, "ibm,phandle", NULL)))
-		node->phandle = *ibm_phandle;
-
-out:
-	of_node_put(parent);
-	return err;
-}
-
-static int prom_reconfig_notifier(struct notifier_block *nb,
-				  unsigned long action, void *node)
-{
-	int err;
-
-	switch (action) {
-	case OF_RECONFIG_ATTACH_NODE:
-		err = of_finish_dynamic_node(node);
-		if (err < 0)
-			printk(KERN_ERR "finish_node returned %d\n", err);
-		break;
-	default:
-		err = 0;
-		break;
-	}
-	return notifier_from_errno(err);
-}
-
-static struct notifier_block prom_reconfig_nb = {
-	.notifier_call = prom_reconfig_notifier,
-	.priority = 10, /* This one needs to run first */
-};
-
-static int __init prom_reconfig_setup(void)
-{
-	return of_reconfig_notifier_register(&prom_reconfig_nb);
-}
-__initcall(prom_reconfig_setup);
-#endif
-
 bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
 {
 	return (int)phys_id == get_hard_smp_processor_id(cpu);
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1659,12 +1659,11 @@ static void stage_topology_update(int core_id)
 static int dt_update_callback(struct notifier_block *nb,
 				unsigned long action, void *data)
 {
-	struct of_prop_reconfig *update;
+	struct of_reconfig_data *update = data;
 	int rc = NOTIFY_DONE;

 	switch (action) {
 	case OF_RECONFIG_UPDATE_PROPERTY:
-		update = (struct of_prop_reconfig *)data;
 		if (!of_prop_cmp(update->dn->type, "cpu") &&
 		    !of_prop_cmp(update->prop->name, "ibm,associativity")) {
 			u32 core_id;
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -11,7 +11,6 @@
 */

 #include <linux/kernel.h>
-#include <linux/kref.h>
 #include <linux/notifier.h>
 #include <linux/spinlock.h>
 #include <linux/cpu.h>
@@ -87,7 +86,6 @@ static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa,
 	}

 	of_node_set_flag(dn, OF_DYNAMIC);
-	kref_init(&dn->kref);

 	return dn;
 }
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -338,16 +338,17 @@ static void pseries_remove_processor(struct device_node *np)
 }

 static int pseries_smp_notifier(struct notifier_block *nb,
-				unsigned long action, void *node)
+				unsigned long action, void *data)
 {
+	struct of_reconfig_data *rd = data;
 	int err = 0;

 	switch (action) {
 	case OF_RECONFIG_ATTACH_NODE:
-		err = pseries_add_processor(node);
+		err = pseries_add_processor(rd->dn);
 		break;
 	case OF_RECONFIG_DETACH_NODE:
-		pseries_remove_processor(node);
+		pseries_remove_processor(rd->dn);
 		break;
 	}
 	return notifier_from_errno(err);
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -200,7 +200,7 @@ static int pseries_add_memory(struct device_node *np)
 	return (ret < 0) ? -EINVAL : 0;
 }

-static int pseries_update_drconf_memory(struct of_prop_reconfig *pr)
+static int pseries_update_drconf_memory(struct of_reconfig_data *pr)
 {
 	struct of_drconf_cell *new_drmem, *old_drmem;
 	unsigned long memblock_size;
@@ -212,7 +212,7 @@ static int pseries_update_drconf_memory(struct of_prop_reconfig *pr)
 	if (!memblock_size)
 		return -EINVAL;

-	p = (u32 *)of_get_property(pr->dn, "ibm,dynamic-memory", NULL);
+	p = (u32 *) pr->old_prop->value;
 	if (!p)
 		return -EINVAL;

@@ -247,9 +247,9 @@ static int pseries_update_drconf_memory(struct of_prop_reconfig *pr)
 }

 static int pseries_memory_notifier(struct notifier_block *nb,
-				   unsigned long action, void *node)
+				   unsigned long action, void *data)
 {
-	struct of_prop_reconfig *pr;
+	struct of_reconfig_data *rd = data;
 	int err = 0;

 	switch (action) {
@@ -260,9 +260,8 @@ static int pseries_memory_notifier(struct notifier_block *nb,
 		err = pseries_remove_memory(node);
 		break;
 	case OF_RECONFIG_UPDATE_PROPERTY:
-		pr = (struct of_prop_reconfig *)node;
-		if (!strcmp(pr->prop->name, "ibm,dynamic-memory"))
-			err = pseries_update_drconf_memory(pr);
+		if (!strcmp(rd->prop->name, "ibm,dynamic-memory"))
+			err = pseries_update_drconf_memory(rd);
 		break;
 	}
 	return notifier_from_errno(err);
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1252,10 +1252,11 @@ static struct notifier_block iommu_mem_nb = {
 	.notifier_call = iommu_mem_notifier,
 };

-static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
+static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *data)
 {
 	int err = NOTIFY_OK;
-	struct device_node *np = node;
+	struct of_reconfig_data *rd = data;
+	struct device_node *np = rd->dn;
 	struct pci_dn *pci = PCI_DN(np);
 	struct direct_window *window;

--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -12,7 +12,6 @@
 */

 #include <linux/kernel.h>
-#include <linux/kref.h>
 #include <linux/notifier.h>
 #include <linux/proc_fs.h>
 #include <linux/slab.h>
@@ -70,7 +69,6 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist

 	np->properties = proplist;
 	of_node_set_flag(np, OF_DYNAMIC);
-	kref_init(&np->kref);

 	np->parent = derive_parent(path);
 	if (IS_ERR(np->parent)) {
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -253,9 +253,10 @@ static void __init pseries_discover_pic(void)
 	       " interrupt-controller\n");
 }

-static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
+static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *data)
 {
-	struct device_node *np = node;
+	struct of_reconfig_data *rd = data;
+	struct device_node *np = rd->dn;
 	struct pci_dn *pci = NULL;
 	int err = NOTIFY_OK;

--- a/arch/powerpc/sysdev/dcr.c
+++ b/arch/powerpc/sysdev/dcr.c
@@ -152,9 +152,9 @@ EXPORT_SYMBOL_GPL(dcr_resource_len);

 #ifdef CONFIG_PPC_DCR_MMIO

-u64 of_translate_dcr_address(struct device_node *dev,
-			     unsigned int dcr_n,
-			     unsigned int *out_stride)
+static u64 of_translate_dcr_address(struct device_node *dev,
+				    unsigned int dcr_n,
+				    unsigned int *out_stride)
 {
 	struct device_node *dp;
 	const u32 *p;
--- a/arch/powerpc/sysdev/msi_bitmap.c
+++ b/arch/powerpc/sysdev/msi_bitmap.c
@@ -202,7 +202,7 @@ void __init test_of_node(void)

 	/* There should really be a struct device_node allocator */
 	memset(&of_node, 0, sizeof(of_node));
-	kref_init(&of_node.kref);
+	kref_init(&of_node.kobj.kref);
 	of_node.full_name = node_name;

 	check(0 == msi_bitmap_alloc(&bmp, size, &of_node));
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -288,6 +288,7 @@ static inline void disable_surveillance(void)
 	args.token = rtas_token("set-indicator");
 	if (args.token == RTAS_UNKNOWN_SERVICE)
 		return;
+	args.token = cpu_to_be32(args.token);
 	args.nargs = cpu_to_be32(3);
 	args.nret = cpu_to_be32(1);
 	args.rets = &args.args[3];
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -979,7 +979,7 @@ static void __exit aes_s390_fini(void)
 module_init(aes_s390_init);
 module_exit(aes_s390_fini);

-MODULE_ALIAS("aes-all");
+MODULE_ALIAS_CRYPTO("aes-all");

 MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm");
 MODULE_LICENSE("GPL");
--- a/arch/s390/crypto/des_s390.c
+++ b/arch/s390/crypto/des_s390.c
@@ -619,8 +619,8 @@ static void __exit des_s390_exit(void)
 module_init(des_s390_init);
 module_exit(des_s390_exit);

-MODULE_ALIAS("des");
-MODULE_ALIAS("des3_ede");
+MODULE_ALIAS_CRYPTO("des");
+MODULE_ALIAS_CRYPTO("des3_ede");

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
--- a/arch/s390/crypto/ghash_s390.c
+++ b/arch/s390/crypto/ghash_s390.c
@@ -160,7 +160,7 @@ static void __exit ghash_mod_exit(void)
 module_init(ghash_mod_init);
 module_exit(ghash_mod_exit);

-MODULE_ALIAS("ghash");
+MODULE_ALIAS_CRYPTO("ghash");

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("GHASH Message Digest Algorithm, s390 implementation");
--- a/arch/s390/crypto/sha1_s390.c
+++ b/arch/s390/crypto/sha1_s390.c
@@ -103,6 +103,6 @@ static void __exit sha1_s390_fini(void)
 module_init(sha1_s390_init);
 module_exit(sha1_s390_fini);

-MODULE_ALIAS("sha1");
+MODULE_ALIAS_CRYPTO("sha1");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
--- a/arch/s390/crypto/sha256_s390.c
+++ b/arch/s390/crypto/sha256_s390.c
@@ -143,7 +143,7 @@ static void __exit sha256_s390_fini(void)
 module_init(sha256_s390_init);
 module_exit(sha256_s390_fini);

-MODULE_ALIAS("sha256");
-MODULE_ALIAS("sha224");
+MODULE_ALIAS_CRYPTO("sha256");
+MODULE_ALIAS_CRYPTO("sha224");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA256 and SHA224 Secure Hash Algorithm");
--- a/arch/s390/crypto/sha512_s390.c
+++ b/arch/s390/crypto/sha512_s390.c
@@ -86,7 +86,7 @@ static struct shash_alg sha512_alg = {
 	}
 };

-MODULE_ALIAS("sha512");
+MODULE_ALIAS_CRYPTO("sha512");

 static int sha384_init(struct shash_desc *desc)
 {
@@ -126,7 +126,7 @@ static struct shash_alg sha384_alg = {
 	}
 };

-MODULE_ALIAS("sha384");
+MODULE_ALIAS_CRYPTO("sha384");

 static int __init init(void)
 {
--- a/arch/sparc/crypto/aes_glue.c
+++ b/arch/sparc/crypto/aes_glue.c
@@ -499,6 +499,6 @@ module_exit(aes_sparc64_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("AES Secure Hash Algorithm, sparc64 aes opcode accelerated");

-MODULE_ALIAS("aes");
+MODULE_ALIAS_CRYPTO("aes");

 #include "crop_devid.c"
--- a/arch/sparc/crypto/camellia_glue.c
+++ b/arch/sparc/crypto/camellia_glue.c
@@ -322,6 +322,6 @@ module_exit(camellia_sparc64_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Camellia Cipher Algorithm, sparc64 camellia opcode accelerated");

-MODULE_ALIAS("aes");
+MODULE_ALIAS_CRYPTO("aes");

 #include "crop_devid.c"
--- a/arch/sparc/crypto/crc32c_glue.c
+++ b/arch/sparc/crypto/crc32c_glue.c
@@ -176,6 +176,6 @@ module_exit(crc32c_sparc64_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("CRC32c (Castagnoli), sparc64 crc32c opcode accelerated");

-MODULE_ALIAS("crc32c");
+MODULE_ALIAS_CRYPTO("crc32c");

 #include "crop_devid.c"
--- a/arch/sparc/crypto/des_glue.c
+++ b/arch/sparc/crypto/des_glue.c
@@ -532,6 +532,6 @@ module_exit(des_sparc64_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms, sparc64 des opcode accelerated");

-MODULE_ALIAS("des");
+MODULE_ALIAS_CRYPTO("des");

 #include "crop_devid.c"
--- a/arch/sparc/crypto/md5_glue.c
+++ b/arch/sparc/crypto/md5_glue.c
@@ -185,6 +185,6 @@ module_exit(md5_sparc64_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("MD5 Secure Hash Algorithm, sparc64 md5 opcode accelerated");

-MODULE_ALIAS("md5");
+MODULE_ALIAS_CRYPTO("md5");

 #include "crop_devid.c"
--- a/arch/sparc/crypto/sha1_glue.c
+++ b/arch/sparc/crypto/sha1_glue.c
@@ -180,6 +180,6 @@ module_exit(sha1_sparc64_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm, sparc64 sha1 opcode accelerated");

-MODULE_ALIAS("sha1");
+MODULE_ALIAS_CRYPTO("sha1");

 #include "crop_devid.c"
--- a/arch/sparc/crypto/sha256_glue.c
+++ b/arch/sparc/crypto/sha256_glue.c
@@ -237,7 +237,7 @@ module_exit(sha256_sparc64_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA-224 and SHA-256 Secure Hash Algorithm, sparc64 sha256 opcode accelerated");

-MODULE_ALIAS("sha224");
-MODULE_ALIAS("sha256");
+MODULE_ALIAS_CRYPTO("sha224");
+MODULE_ALIAS_CRYPTO("sha256");

 #include "crop_devid.c"
--- a/arch/sparc/crypto/sha512_glue.c
+++ b/arch/sparc/crypto/sha512_glue.c
@@ -222,7 +222,7 @@ module_exit(sha512_sparc64_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA-384 and SHA-512 Secure Hash Algorithm, sparc64 sha512 opcode accelerated");

-MODULE_ALIAS("sha384");
-MODULE_ALIAS("sha512");
+MODULE_ALIAS_CRYPTO("sha384");
+MODULE_ALIAS_CRYPTO("sha512");

 #include "crop_devid.c"
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -2,6 +2,7 @@ config UML
 	bool
 	default y
 	select HAVE_UID16
+	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select GENERIC_IRQ_SHOW
 	select GENERIC_CPU_DEVICES
 	select GENERIC_IO
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -854,7 +854,7 @@ source "kernel/Kconfig.preempt"

 config X86_UP_APIC
 	bool "Local APIC support on uniprocessors"
-	depends on X86_32 && !SMP && !X86_32_NON_STANDARD && !PCI_MSI
+	depends on X86_32 && !SMP && !X86_32_NON_STANDARD
 	---help---
 	  A local APIC (Advanced Programmable Interrupt Controller) is an
 	  integrated interrupt controller in the CPU. If you have a single-CPU
@@ -865,6 +865,10 @@ config X86_UP_APIC
 	  performance counters), and the NMI watchdog which detects hard
 	  lockups.

+config X86_UP_APIC_MSI
+	def_bool y
+	select X86_UP_APIC if X86_32 && !SMP && !X86_32_NON_STANDARD && PCI_MSI
+
 config X86_UP_IOAPIC
 	bool "IO-APIC support on uniprocessors"
 	depends on X86_UP_APIC
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -76,7 +76,7 @@ suffix-$(CONFIG_KERNEL_LZO) 	:= lzo
 suffix-$(CONFIG_KERNEL_LZ4) 	:= lz4

 RUN_SIZE = $(shell $(OBJDUMP) -h vmlinux | \
-	     perl $(srctree)/arch/x86/tools/calc_run_size.pl)
+	     $(CONFIG_SHELL) $(srctree)/arch/x86/tools/calc_run_size.sh)
 quiet_cmd_mkpiggy = MKPIGGY $@
      cmd_mkpiggy = $(obj)/mkpiggy $< $(RUN_SIZE) > $@ || ( rm -f $@ ; false )

--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -489,8 +489,7 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 	hdr->type_of_loader = 0x21;

 	/* Convert unicode cmdline to ascii */
-	cmdline_ptr = efi_convert_cmdline_to_ascii(sys_table, image,
-						   &options_size);
+	cmdline_ptr = efi_convert_cmdline(sys_table, image, &options_size);
 	if (!cmdline_ptr)
 		goto fail;
 	hdr->cmd_line_ptr = (unsigned long)cmdline_ptr;
--- a/arch/x86/boot/compressed/eboot.h
+++ b/arch/x86/boot/compressed/eboot.h
@@ -10,6 +10,7 @@
 #define SEG_GRANULARITY_4KB	(1 << 0)

 #define DESC_TYPE_CODE_DATA	(1 << 0)
+#define EFI_READ_CHUNK_SIZE	(1024 * 1024)

 #define EFI_CONSOLE_OUT_DEVICE_GUID    \
 	EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x0, 0x90, 0x27, \
@@ -37,6 +38,24 @@ struct efi_graphics_output_mode_info {
 	u32 pixels_per_scan_line;
 } __packed;

+struct efi_graphics_output_protocol_mode_32 {
+	u32 max_mode;
+	u32 mode;
+	u32 info;
+	u32 size_of_info;
+	u64 frame_buffer_base;
+	u32 frame_buffer_size;
+} __packed;
+
+struct efi_graphics_output_protocol_mode_64 {
+	u32 max_mode;
+	u32 mode;
+	u64 info;
+	u64 size_of_info;
+	u64 frame_buffer_base;
+	u64 frame_buffer_size;
+} __packed;
+
 struct efi_graphics_output_protocol_mode {
 	u32 max_mode;
 	u32 mode;
@@ -46,6 +65,20 @@ struct efi_graphics_output_protocol_mode {
 	unsigned long frame_buffer_size;
 } __packed;

+struct efi_graphics_output_protocol_32 {
+	u32 query_mode;
+	u32 set_mode;
+	u32 blt;
+	u32 mode;
+};
+
+struct efi_graphics_output_protocol_64 {
+	u64 query_mode;
+	u64 set_mode;
+	u64 blt;
+	u64 mode;
+};
+
 struct efi_graphics_output_protocol {
 	void *query_mode;
 	unsigned long set_mode;
@@ -53,6 +86,18 @@ struct efi_graphics_output_protocol {
 	struct efi_graphics_output_protocol_mode *mode;
 };

+struct efi_uga_draw_protocol_32 {
+	u32 get_mode;
+	u32 set_mode;
+	u32 blt;
+};
+
+struct efi_uga_draw_protocol_64 {
+	u64 get_mode;
+	u64 set_mode;
+	u64 blt;
+};
+
 struct efi_uga_draw_protocol {
 	void *get_mode;
 	void *set_mode;
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -396,6 +396,8 @@ asmlinkage void *decompress_kernel(void *rmode, memptr heap,
 				  unsigned long output_len,
 				  unsigned long run_size)
 {
+	unsigned char *output_orig = output;
+
 	real_mode = rmode;

 	sanitize_boot_params(real_mode);
@@ -444,7 +446,12 @@ asmlinkage void *decompress_kernel(void *rmode, memptr heap,
 	debug_putstr("\nDecompressing Linux... ");
 	decompress(input_data, input_len, NULL, NULL, output, NULL, error);
 	parse_elf(output);
-	handle_relocations(output, output_len);
+	/*
+	 * 32-bit always performs relocations. 64-bit relocations are only
+	 * needed if kASLR has chosen a different load address.
+	 */
+	if (!IS_ENABLED(CONFIG_X86_64) || output != output_orig)
+		handle_relocations(output, output_len);
 	debug_putstr("done.\nBooting the kernel.\n");
 	return output;
 }
--- a/arch/x86/crypto/aes_glue.c
+++ b/arch/x86/crypto/aes_glue.c
@@ -66,5 +66,5 @@ module_exit(aes_fini);

 MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, asm optimized");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("aes");
-MODULE_ALIAS("aes-asm");
+MODULE_ALIAS_CRYPTO("aes");
+MODULE_ALIAS_CRYPTO("aes-asm");
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -1514,4 +1514,4 @@ module_exit(aesni_exit);

 MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, Intel AES-NI instructions optimized");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("aes");
+MODULE_ALIAS_CRYPTO("aes");
--- a/arch/x86/crypto/blowfish_glue.c
+++ b/arch/x86/crypto/blowfish_glue.c
@@ -481,5 +481,5 @@ module_exit(fini);

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Blowfish Cipher Algorithm, asm optimized");
-MODULE_ALIAS("blowfish");
-MODULE_ALIAS("blowfish-asm");
+MODULE_ALIAS_CRYPTO("blowfish");
+MODULE_ALIAS_CRYPTO("blowfish-asm");
--- a/arch/x86/crypto/camellia_aesni_avx2_glue.c
+++ b/arch/x86/crypto/camellia_aesni_avx2_glue.c
@@ -582,5 +582,5 @@ module_exit(camellia_aesni_fini);

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Camellia Cipher Algorithm, AES-NI/AVX2 optimized");
-MODULE_ALIAS("camellia");
-MODULE_ALIAS("camellia-asm");
+MODULE_ALIAS_CRYPTO("camellia");
+MODULE_ALIAS_CRYPTO("camellia-asm");
--- a/arch/x86/crypto/camellia_aesni_avx_glue.c
+++ b/arch/x86/crypto/camellia_aesni_avx_glue.c
@@ -574,5 +574,5 @@ module_exit(camellia_aesni_fini);

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Camellia Cipher Algorithm, AES-NI/AVX optimized");
-MODULE_ALIAS("camellia");
-MODULE_ALIAS("camellia-asm");
+MODULE_ALIAS_CRYPTO("camellia");
+MODULE_ALIAS_CRYPTO("camellia-asm");
--- a/arch/x86/crypto/camellia_glue.c
+++ b/arch/x86/crypto/camellia_glue.c
@@ -1725,5 +1725,5 @@ module_exit(fini);

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Camellia Cipher Algorithm, asm optimized");
-MODULE_ALIAS("camellia");
-MODULE_ALIAS("camellia-asm");
+MODULE_ALIAS_CRYPTO("camellia");
+MODULE_ALIAS_CRYPTO("camellia-asm");
--- a/arch/x86/crypto/cast5_avx_glue.c
+++ b/arch/x86/crypto/cast5_avx_glue.c
@@ -494,4 +494,4 @@ module_exit(cast5_exit);

 MODULE_DESCRIPTION("Cast5 Cipher Algorithm, AVX optimized");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("cast5");
+MODULE_ALIAS_CRYPTO("cast5");
--- a/arch/x86/crypto/cast6_avx_glue.c
+++ b/arch/x86/crypto/cast6_avx_glue.c
@@ -611,4 +611,4 @@ module_exit(cast6_exit);

 MODULE_DESCRIPTION("Cast6 Cipher Algorithm, AVX optimized");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("cast6");
+MODULE_ALIAS_CRYPTO("cast6");
--- a/arch/x86/crypto/crc32-pclmul_glue.c
+++ b/arch/x86/crypto/crc32-pclmul_glue.c
@@ -197,5 +197,5 @@ module_exit(crc32_pclmul_mod_fini);
 MODULE_AUTHOR("Alexander Boyko <alexander_boyko@xyratex.com>");
 MODULE_LICENSE("GPL");

-MODULE_ALIAS("crc32");
-MODULE_ALIAS("crc32-pclmul");
+MODULE_ALIAS_CRYPTO("crc32");
+MODULE_ALIAS_CRYPTO("crc32-pclmul");
--- a/arch/x86/crypto/crc32c-intel_glue.c
+++ b/arch/x86/crypto/crc32c-intel_glue.c
@@ -280,5 +280,5 @@ MODULE_AUTHOR("Austin Zhang <austin.zhang@intel.com>, Kent Liu <kent.liu@intel.c
 MODULE_DESCRIPTION("CRC32c (Castagnoli) optimization using Intel Hardware.");
 MODULE_LICENSE("GPL");

-MODULE_ALIAS("crc32c");
-MODULE_ALIAS("crc32c-intel");
+MODULE_ALIAS_CRYPTO("crc32c");
+MODULE_ALIAS_CRYPTO("crc32c-intel");
--- a/arch/x86/crypto/crct10dif-pclmul_glue.c
+++ b/arch/x86/crypto/crct10dif-pclmul_glue.c
@@ -147,5 +147,5 @@ MODULE_AUTHOR("Tim Chen <tim.c.chen@linux.intel.com>");
 MODULE_DESCRIPTION("T10 DIF CRC calculation accelerated with PCLMULQDQ.");
 MODULE_LICENSE("GPL");

-MODULE_ALIAS("crct10dif");
-MODULE_ALIAS("crct10dif-pclmul");
+MODULE_ALIAS_CRYPTO("crct10dif");
+MODULE_ALIAS_CRYPTO("crct10dif-pclmul");
--- a/arch/x86/crypto/fpu.c
+++ b/arch/x86/crypto/fpu.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/crypto.h>
 #include <asm/i387.h>

 struct crypto_fpu_ctx {
@@ -159,3 +160,5 @@ void __exit crypto_fpu_exit(void)
 {
 	crypto_unregister_template(&crypto_fpu_tmpl);
 }
+
+MODULE_ALIAS_CRYPTO("fpu");
--- a/arch/x86/crypto/ghash-clmulni-intel_glue.c
+++ b/arch/x86/crypto/ghash-clmulni-intel_glue.c
@@ -341,4 +341,4 @@ module_exit(ghash_pclmulqdqni_mod_exit);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("GHASH Message Digest Algorithm, "
 		   "acclerated by PCLMULQDQ-NI");
-MODULE_ALIAS("ghash");
+MODULE_ALIAS_CRYPTO("ghash");
--- a/arch/x86/crypto/salsa20_glue.c
+++ b/arch/x86/crypto/salsa20_glue.c
@@ -119,5 +119,5 @@ module_exit(fini);

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION ("Salsa20 stream cipher algorithm (optimized assembly version)");
-MODULE_ALIAS("salsa20");
-MODULE_ALIAS("salsa20-asm");
+MODULE_ALIAS_CRYPTO("salsa20");
+MODULE_ALIAS_CRYPTO("salsa20-asm");
--- a/arch/x86/crypto/serpent_avx2_glue.c
+++ b/arch/x86/crypto/serpent_avx2_glue.c
@@ -558,5 +558,5 @@ module_exit(fini);

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Serpent Cipher Algorithm, AVX2 optimized");
-MODULE_ALIAS("serpent");
-MODULE_ALIAS("serpent-asm");
+MODULE_ALIAS_CRYPTO("serpent");
+MODULE_ALIAS_CRYPTO("serpent-asm");
--- a/arch/x86/crypto/serpent_avx_glue.c
+++ b/arch/x86/crypto/serpent_avx_glue.c
@@ -617,4 +617,4 @@ module_exit(serpent_exit);

 MODULE_DESCRIPTION("Serpent Cipher Algorithm, AVX optimized");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("serpent");
+MODULE_ALIAS_CRYPTO("serpent");
--- a/arch/x86/crypto/serpent_sse2_glue.c
+++ b/arch/x86/crypto/serpent_sse2_glue.c
@@ -618,4 +618,4 @@ module_exit(serpent_sse2_exit);

 MODULE_DESCRIPTION("Serpent Cipher Algorithm, SSE2 optimized");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("serpent");
+MODULE_ALIAS_CRYPTO("serpent");
--- a/arch/x86/crypto/sha1_ssse3_glue.c
+++ b/arch/x86/crypto/sha1_ssse3_glue.c
@@ -237,4 +237,4 @@ module_exit(sha1_ssse3_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm, Supplemental SSE3 accelerated");

-MODULE_ALIAS("sha1");
+MODULE_ALIAS_CRYPTO("sha1");
--- a/arch/x86/crypto/sha256_ssse3_glue.c
+++ b/arch/x86/crypto/sha256_ssse3_glue.c
@@ -318,5 +318,5 @@ module_exit(sha256_ssse3_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm, Supplemental SSE3 accelerated");

-MODULE_ALIAS("sha256");
-MODULE_ALIAS("sha224");
+MODULE_ALIAS_CRYPTO("sha256");
+MODULE_ALIAS_CRYPTO("sha224");
--- a/arch/x86/crypto/sha512_ssse3_glue.c
+++ b/arch/x86/crypto/sha512_ssse3_glue.c
@@ -326,5 +326,5 @@ module_exit(sha512_ssse3_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA512 Secure Hash Algorithm, Supplemental SSE3 accelerated");

-MODULE_ALIAS("sha512");
-MODULE_ALIAS("sha384");
+MODULE_ALIAS_CRYPTO("sha512");
+MODULE_ALIAS_CRYPTO("sha384");
--- a/arch/x86/crypto/twofish_avx_glue.c
+++ b/arch/x86/crypto/twofish_avx_glue.c
@@ -579,4 +579,4 @@ module_exit(twofish_exit);

 MODULE_DESCRIPTION("Twofish Cipher Algorithm, AVX optimized");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("twofish");
+MODULE_ALIAS_CRYPTO("twofish");
--- a/arch/x86/crypto/twofish_glue.c
+++ b/arch/x86/crypto/twofish_glue.c
@@ -96,5 +96,5 @@ module_exit(fini);

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION ("Twofish Cipher Algorithm, asm optimized");
-MODULE_ALIAS("twofish");
-MODULE_ALIAS("twofish-asm");
+MODULE_ALIAS_CRYPTO("twofish");
+MODULE_ALIAS_CRYPTO("twofish-asm");
--- a/arch/x86/crypto/twofish_glue_3way.c
+++ b/arch/x86/crypto/twofish_glue_3way.c
@@ -495,5 +495,5 @@ module_exit(fini);

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Twofish Cipher Algorithm, 3-way parallel asm optimized");
-MODULE_ALIAS("twofish");
-MODULE_ALIAS("twofish-asm");
+MODULE_ALIAS_CRYPTO("twofish");
+MODULE_ALIAS_CRYPTO("twofish-asm");
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -251,7 +251,8 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
 		gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
 }

-#define _LDT_empty(info)				\
+/* This intentionally ignores lm, since 32-bit apps don't have that field. */
+#define LDT_empty(info)					\
 	((info)->base_addr		== 0	&&	\
 	 (info)->limit			== 0	&&	\
 	 (info)->contents		== 0	&&	\
@@ -261,11 +262,18 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
 	 (info)->seg_not_present	== 1	&&	\
 	 (info)->useable		== 0)

-#ifdef CONFIG_X86_64
-#define LDT_empty(info) (_LDT_empty(info) && ((info)->lm == 0))
-#else
-#define LDT_empty(info) (_LDT_empty(info))
-#endif
+/* Lots of programs expect an all-zero user_desc to mean "no segment at all". */
+static inline bool LDT_zero(const struct user_desc *info)
+{
+	return (info->base_addr		== 0 &&
+		info->limit		== 0 &&
+		info->contents		== 0 &&
+		info->read_exec_only	== 0 &&
+		info->seg_32bit		== 0 &&
+		info->limit_in_pages	== 0 &&
+		info->seg_not_present	== 0 &&
+		info->useable		== 0);
+}

 static inline void clear_LDT(void)
 {
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -67,6 +67,7 @@ static struct clocksource hyperv_cs = {
 	.rating		= 400, /* use this when running on Hyperv*/
 	.read		= read_hv_clock,
 	.mask		= CLOCKSOURCE_MASK(64),
+	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };

 static void __init ms_hyperv_init_platform(void)
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -1017,6 +1017,15 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	regs->flags &= ~X86_EFLAGS_IF;
 	trace_hardirqs_off();
 	regs->ip = (unsigned long)(jp->entry);
+
+	/*
+	 * jprobes use jprobe_return() which skips the normal return
+	 * path of the function, and this messes up the accounting of the
+	 * function graph tracer to get messed up.
+	 *
+	 * Pause function graph tracing while performing the jprobe function.
+	 */
+	pause_graph_tracing();
 	return 1;
 }

@@ -1042,24 +1051,25 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 	u8 *addr = (u8 *) (regs->ip - 1);
 	struct jprobe *jp = container_of(p, struct jprobe, kp);
+	void *saved_sp = kcb->jprobe_saved_sp;

 	if ((addr > (u8 *) jprobe_return) &&
 	    (addr < (u8 *) jprobe_return_end)) {
-		if (stack_addr(regs) != kcb->jprobe_saved_sp) {
+		if (stack_addr(regs) != saved_sp) {
 			struct pt_regs *saved_regs = &kcb->jprobe_saved_regs;
 			printk(KERN_ERR
 			       "current sp %p does not match saved sp %p\n",
-			       stack_addr(regs), kcb->jprobe_saved_sp);
+			       stack_addr(regs), saved_sp);
 			printk(KERN_ERR "Saved registers for jprobe %p\n", jp);
 			show_regs(saved_regs);
 			printk(KERN_ERR "Current registers\n");
 			show_regs(regs);
 			BUG();
 		}
+		/* It's OK to start function graph tracing again */
+		unpause_graph_tracing();
 		*regs = kcb->jprobe_saved_regs;
-		memcpy((kprobe_opcode_t *)(kcb->jprobe_saved_sp),
-		       kcb->jprobes_stack,
-		       MIN_STACK_SIZE(kcb->jprobe_saved_sp));
+		memcpy(saved_sp, kcb->jprobes_stack, MIN_STACK_SIZE(saved_sp));
 		preempt_enable_no_resched();
 		return 1;
 	}
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -926,11 +926,11 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_EFI
 	if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
 		     "EL32", 4)) {
-		set_bit(EFI_BOOT, &x86_efi_facility);
+		set_bit(EFI_BOOT, &efi.flags);
 	} else if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
 		     "EL64", 4)) {
-		set_bit(EFI_BOOT, &x86_efi_facility);
-		set_bit(EFI_64BIT, &x86_efi_facility);
+		set_bit(EFI_BOOT, &efi.flags);
+		set_bit(EFI_64BIT, &efi.flags);
 	}

 	if (efi_enabled(EFI_BOOT))
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -29,7 +29,28 @@ static int get_free_idx(void)

 static bool tls_desc_okay(const struct user_desc *info)
 {
-	if (LDT_empty(info))
+	/*
+	 * For historical reasons (i.e. no one ever documented how any
+	 * of the segmentation APIs work), user programs can and do
+	 * assume that a struct user_desc that's all zeros except for
+	 * entry_number means "no segment at all".  This never actually
+	 * worked.  In fact, up to Linux 3.19, a struct user_desc like
+	 * this would create a 16-bit read-write segment with base and
+	 * limit both equal to zero.
+	 *
+	 * That was close enough to "no segment at all" until we
+	 * hardened this function to disallow 16-bit TLS segments.  Fix
+	 * it up by interpreting these zeroed segments the way that they
+	 * were almost certainly intended to be interpreted.
+	 *
+	 * The correct way to ask for "no segment at all" is to specify
+	 * a user_desc that satisfies LDT_empty.  To keep everything
+	 * working, we accept both.
+	 *
+	 * Note that there's a similar kludge in modify_ldt -- look at
+	 * the distinction between modes 1 and 0x11.
+	 */
+	if (LDT_empty(info) || LDT_zero(info))
 		return true;

 	/*
@@ -71,7 +92,7 @@ static void set_tls_desc(struct task_struct *p, int idx,
 	cpu = get_cpu();

 	while (n-- > 0) {
-		if (LDT_empty(info))
+		if (LDT_empty(info) || LDT_zero(info))
 			desc->a = desc->b = 0;
 		else
 			fill_ldt(desc, info);
--- a/Show More
+++ b/Show More