linux: bump all lts / stable to latest

53 files changed, 6 insertions, 9493 deletions

diff --git a/target/config/Config.in.kernelversion b/target/config/Config.in.kernelversion
index dfbd780ed..5db092c1f 100644
--- a/target/config/Config.in.kernelversion
+++ b/target/config/Config.in.kernelversion
@@ -29,7 +29,7 @@ config ADK_TARGET_KERNEL_VERSION_GIT
 	select ADK_TARGET_KERNEL_IMAGE if ADK_TARGET_SYSTEM_BEAGLEBONE_BLACK
 
 config ADK_TARGET_KERNEL_VERSION_4_13
-	bool "4.13.1"
+	bool "4.13.2"
 	depends on !ADK_TARGET_ARCH_AVR32
 	depends on !ADK_TARGET_ARCH_CRIS
 	depends on !ADK_TARGET_ARCH_CSKY
@@ -39,20 +39,8 @@ config ADK_TARGET_KERNEL_VERSION_4_13
 	depends on !ADK_TARGET_ARCH_RISCV64
 	depends on !ADK_TARGET_SYSTEM_QEMU_ARM_VERSATILEPB_NOMMU
 
-config ADK_TARGET_KERNEL_VERSION_4_12
-	bool "4.12.10"
-	depends on !ADK_TARGET_ARCH_AVR32
-	depends on !ADK_TARGET_ARCH_CRIS
-	depends on !ADK_TARGET_ARCH_CSKY
-	depends on !ADK_TARGET_ARCH_METAG
-	depends on !ADK_TARGET_ARCH_NDS32
-	depends on !ADK_TARGET_ARCH_RISCV32
-	depends on !ADK_TARGET_ARCH_RISCV64
-	depends on !ADK_TARGET_SYSTEM_QEMU_ARM_VERSATILEPB_NOMMU
-	depends on !ADK_TARGET_SYSTEM_ORANGE_PI0
-
 config ADK_TARGET_KERNEL_VERSION_4_9
-	bool "4.9.40"
+	bool "4.9.50"
 	depends on !ADK_TARGET_ARCH_CRIS
 	depends on !ADK_TARGET_ARCH_CSKY
 	depends on !ADK_TARGET_ARCH_METAG
@@ -63,7 +51,7 @@ config ADK_TARGET_KERNEL_VERSION_4_9
 	depends on !ADK_TARGET_SYSTEM_ORANGE_PI0
 
 config ADK_TARGET_KERNEL_VERSION_4_4
-	bool "4.4.79"
+	bool "4.4.88"
 	depends on !ADK_TARGET_ARCH_CSKY
 	depends on !ADK_TARGET_ARCH_NDS32
 	depends on !ADK_TARGET_ARCH_NIOS2
@@ -95,7 +83,7 @@ config ADK_TARGET_KERNEL_VERSION_4_1
 	depends on !ADK_TARGET_SYSTEM_ORANGE_PI0
 
 config ADK_TARGET_KERNEL_VERSION_3_16
-	bool "3.16.43"
+	bool "3.16.48"
 	depends on !ADK_TARGET_ARCH_ARC
 	depends on !ADK_TARGET_ARCH_BFIN
 	depends on !ADK_TARGET_ARCH_CSKY
@@ -119,7 +107,7 @@ config ADK_TARGET_KERNEL_VERSION_3_16
 	depends on !ADK_TARGET_SYSTEM_ORANGE_PI0
 
 config ADK_TARGET_KERNEL_VERSION_3_10
-	bool "3.10.105"
+	bool "3.10.107"
 	depends on !ADK_TARGET_ARCH_ARC
 	depends on !ADK_TARGET_ARCH_BFIN
 	depends on !ADK_TARGET_ARCH_CSKY
@@ -173,7 +161,7 @@ config ADK_TARGET_KERNEL_VERSION_3_4_NDS32
 	select ADK_TARGET_KERNEL_NO_MIRROR
 
 config ADK_TARGET_KERNEL_VERSION_3_2
-	bool "3.2.88"
+	bool "3.2.93"
 	depends on !ADK_TARGET_ARCH_ARC
 	depends on !ADK_TARGET_ARCH_BFIN
 	depends on !ADK_TARGET_ARCH_CSKY
diff --git a/target/linux/patches/3.10.105/bsd-compatibility.patch b/target/linux/patches/3.10.107/bsd-compatibility.patch
index b954b658f..b954b658f 100644
--- a/target/linux/patches/3.10.105/bsd-compatibility.patch
+++ b/target/linux/patches/3.10.107/bsd-compatibility.patch
diff --git a/target/linux/patches/3.10.105/headers-install.patch b/target/linux/patches/3.10.107/headers-install.patch
index 46dc9fe13..46dc9fe13 100644
--- a/target/linux/patches/3.10.105/headers-install.patch
+++ b/target/linux/patches/3.10.107/headers-install.patch
diff --git a/target/linux/patches/3.10.105/sgidefs.patch b/target/linux/patches/3.10.107/sgidefs.patch
index f00a284d9..f00a284d9 100644
--- a/target/linux/patches/3.10.105/sgidefs.patch
+++ b/target/linux/patches/3.10.107/sgidefs.patch
diff --git a/target/linux/patches/3.10.105/startup.patch b/target/linux/patches/3.10.107/startup.patch
index 3ebc5db1e..3ebc5db1e 100644
--- a/target/linux/patches/3.10.105/startup.patch
+++ b/target/linux/patches/3.10.107/startup.patch
diff --git a/target/linux/patches/3.16.43/bsd-compatibility.patch b/target/linux/patches/3.16.48/bsd-compatibility.patch
index b954b658f..b954b658f 100644
--- a/target/linux/patches/3.16.43/bsd-compatibility.patch
+++ b/target/linux/patches/3.16.48/bsd-compatibility.patch
diff --git a/target/linux/patches/3.16.43/cleankernel.patch b/target/linux/patches/3.16.48/cleankernel.patch
index d8c055dc3..d8c055dc3 100644
--- a/target/linux/patches/3.16.43/cleankernel.patch
+++ b/target/linux/patches/3.16.48/cleankernel.patch
diff --git a/target/linux/patches/3.16.43/cris-header.patch b/target/linux/patches/3.16.48/cris-header.patch
index 3db07e530..3db07e530 100644
--- a/target/linux/patches/3.16.43/cris-header.patch
+++ b/target/linux/patches/3.16.48/cris-header.patch
diff --git a/target/linux/patches/3.16.43/cris-initramfs.patch b/target/linux/patches/3.16.48/cris-initramfs.patch
index b709e705e..b709e705e 100644
--- a/target/linux/patches/3.16.43/cris-initramfs.patch
+++ b/target/linux/patches/3.16.48/cris-initramfs.patch
diff --git a/target/linux/patches/3.16.43/defaults.patch b/target/linux/patches/3.16.48/defaults.patch
index 6cdca084e..6cdca084e 100644
--- a/target/linux/patches/3.16.43/defaults.patch
+++ b/target/linux/patches/3.16.48/defaults.patch
diff --git a/target/linux/patches/3.16.43/export-symbol-for-exmap.patch b/target/linux/patches/3.16.48/export-symbol-for-exmap.patch
index 4f0fc8449..4f0fc8449 100644
--- a/target/linux/patches/3.16.43/export-symbol-for-exmap.patch
+++ b/target/linux/patches/3.16.48/export-symbol-for-exmap.patch
diff --git a/target/linux/patches/3.16.43/fblogo.patch b/target/linux/patches/3.16.48/fblogo.patch
index 5b9070242..5b9070242 100644
--- a/target/linux/patches/3.16.43/fblogo.patch
+++ b/target/linux/patches/3.16.48/fblogo.patch
diff --git a/target/linux/patches/3.16.43/gemalto.patch b/target/linux/patches/3.16.48/gemalto.patch
index 65f7af1d7..65f7af1d7 100644
--- a/target/linux/patches/3.16.43/gemalto.patch
+++ b/target/linux/patches/3.16.48/gemalto.patch
diff --git a/target/linux/patches/3.16.43/initramfs-nosizelimit.patch b/target/linux/patches/3.16.48/initramfs-nosizelimit.patch
index 40d2f6bd8..40d2f6bd8 100644
--- a/target/linux/patches/3.16.43/initramfs-nosizelimit.patch
+++ b/target/linux/patches/3.16.48/initramfs-nosizelimit.patch
diff --git a/target/linux/patches/3.16.43/lemote-rfkill.patch b/target/linux/patches/3.16.48/lemote-rfkill.patch
index a61488434..a61488434 100644
--- a/target/linux/patches/3.16.43/lemote-rfkill.patch
+++ b/target/linux/patches/3.16.48/lemote-rfkill.patch
diff --git a/target/linux/patches/3.16.43/microblaze-ethernet.patch b/target/linux/patches/3.16.48/microblaze-ethernet.patch
index 742ab477e..742ab477e 100644
--- a/target/linux/patches/3.16.43/microblaze-ethernet.patch
+++ b/target/linux/patches/3.16.48/microblaze-ethernet.patch
diff --git a/target/linux/patches/3.16.43/mkpiggy.patch b/target/linux/patches/3.16.48/mkpiggy.patch
index 751678b74..751678b74 100644
--- a/target/linux/patches/3.16.43/mkpiggy.patch
+++ b/target/linux/patches/3.16.48/mkpiggy.patch
diff --git a/target/linux/patches/3.16.43/mtd-rootfs.patch b/target/linux/patches/3.16.48/mtd-rootfs.patch
index 775d5fc80..775d5fc80 100644
--- a/target/linux/patches/3.16.43/mtd-rootfs.patch
+++ b/target/linux/patches/3.16.48/mtd-rootfs.patch
diff --git a/target/linux/patches/3.16.43/nfsv3-tcp.patch b/target/linux/patches/3.16.48/nfsv3-tcp.patch
index d5e07e1c2..d5e07e1c2 100644
--- a/target/linux/patches/3.16.43/nfsv3-tcp.patch
+++ b/target/linux/patches/3.16.48/nfsv3-tcp.patch
diff --git a/target/linux/patches/3.16.43/non-static.patch b/target/linux/patches/3.16.48/non-static.patch
index a967703d0..a967703d0 100644
--- a/target/linux/patches/3.16.43/non-static.patch
+++ b/target/linux/patches/3.16.48/non-static.patch
diff --git a/target/linux/patches/3.16.43/ppc64-missing-zlib.patch b/target/linux/patches/3.16.48/ppc64-missing-zlib.patch
index c6e0616be..c6e0616be 100644
--- a/target/linux/patches/3.16.43/ppc64-missing-zlib.patch
+++ b/target/linux/patches/3.16.48/ppc64-missing-zlib.patch
diff --git a/target/linux/patches/3.16.43/relocs.patch b/target/linux/patches/3.16.48/relocs.patch
index 69a7c88a9..69a7c88a9 100644
--- a/target/linux/patches/3.16.43/relocs.patch
+++ b/target/linux/patches/3.16.48/relocs.patch
diff --git a/target/linux/patches/3.16.43/sgidefs.patch b/target/linux/patches/3.16.48/sgidefs.patch
index f00a284d9..f00a284d9 100644
--- a/target/linux/patches/3.16.43/sgidefs.patch
+++ b/target/linux/patches/3.16.48/sgidefs.patch
diff --git a/target/linux/patches/3.16.43/sortext.patch b/target/linux/patches/3.16.48/sortext.patch
index 8fd4e1d6b..8fd4e1d6b 100644
--- a/target/linux/patches/3.16.43/sortext.patch
+++ b/target/linux/patches/3.16.48/sortext.patch
diff --git a/target/linux/patches/3.16.43/startup.patch b/target/linux/patches/3.16.48/startup.patch
index d396b75e4..d396b75e4 100644
--- a/target/linux/patches/3.16.43/startup.patch
+++ b/target/linux/patches/3.16.48/startup.patch
diff --git a/target/linux/patches/3.16.43/wlan-cf.patch b/target/linux/patches/3.16.48/wlan-cf.patch
index fc20759e2..fc20759e2 100644
--- a/target/linux/patches/3.16.43/wlan-cf.patch
+++ b/target/linux/patches/3.16.48/wlan-cf.patch
diff --git a/target/linux/patches/3.16.43/xargs.patch b/target/linux/patches/3.16.48/xargs.patch
index 2c7b3df59..2c7b3df59 100644
--- a/target/linux/patches/3.16.43/xargs.patch
+++ b/target/linux/patches/3.16.48/xargs.patch
diff --git a/target/linux/patches/3.2.88/sparc-aout.patch b/target/linux/patches/3.2.93/sparc-aout.patch
index 6ad252479..6ad252479 100644
--- a/target/linux/patches/3.2.88/sparc-aout.patch
+++ b/target/linux/patches/3.2.93/sparc-aout.patch
diff --git a/target/linux/patches/4.12.10/regmap-default-on.patch b/target/linux/patches/4.12.10/regmap-default-on.patch
deleted file mode 100644
index f27eb1d94..000000000
--- a/target/linux/patches/4.12.10/regmap-default-on.patch
+++ /dev/null
@@ -1,17 +0,0 @@
-diff -Nur linux-4.12.3.orig/drivers/base/regmap/Kconfig linux-4.12.3/drivers/base/regmap/Kconfig
---- linux-4.12.3.orig/drivers/base/regmap/Kconfig	2017-07-21 06:59:24.000000000 +0200
-+++ linux-4.12.3/drivers/base/regmap/Kconfig	2017-07-25 23:02:14.060483161 +0200
-@@ -3,7 +3,7 @@
- # subsystems should select the appropriate symbols.
- 
- config REGMAP
--	default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
-+	default y
- 	select LZO_COMPRESS
- 	select LZO_DECOMPRESS
- 	select IRQ_DOMAIN if REGMAP_IRQ
-@@ -29,3 +29,4 @@
- 
- config REGMAP_IRQ
- 	bool
-+	default y
diff --git a/target/linux/patches/4.4.79/coldfire-sighandler.patch b/target/linux/patches/4.4.88/coldfire-sighandler.patch
index c52a4e228..c52a4e228 100644
--- a/target/linux/patches/4.4.79/coldfire-sighandler.patch
+++ b/target/linux/patches/4.4.88/coldfire-sighandler.patch
diff --git a/target/linux/patches/4.4.79/crisv32.patch b/target/linux/patches/4.4.88/crisv32.patch
index cb9b0d028..cb9b0d028 100644
--- a/target/linux/patches/4.4.79/crisv32.patch
+++ b/target/linux/patches/4.4.88/crisv32.patch
diff --git a/target/linux/patches/4.4.79/crisv32_ethernet_driver.patch b/target/linux/patches/4.4.88/crisv32_ethernet_driver.patch
index 0cef202fc..0cef202fc 100644
--- a/target/linux/patches/4.4.79/crisv32_ethernet_driver.patch
+++ b/target/linux/patches/4.4.88/crisv32_ethernet_driver.patch
diff --git a/target/linux/patches/4.4.79/initramfs-nosizelimit.patch b/target/linux/patches/4.4.88/initramfs-nosizelimit.patch
index 40d2f6bd8..40d2f6bd8 100644
--- a/target/linux/patches/4.4.79/initramfs-nosizelimit.patch
+++ b/target/linux/patches/4.4.88/initramfs-nosizelimit.patch
diff --git a/target/linux/patches/4.4.79/ld-or1k.patch b/target/linux/patches/4.4.88/ld-or1k.patch
index 264f9166f..264f9166f 100644
--- a/target/linux/patches/4.4.79/ld-or1k.patch
+++ b/target/linux/patches/4.4.88/ld-or1k.patch
diff --git a/target/linux/patches/4.4.79/macsonic.patch b/target/linux/patches/4.4.88/macsonic.patch
index 75a6fcad2..75a6fcad2 100644
--- a/target/linux/patches/4.4.79/macsonic.patch
+++ b/target/linux/patches/4.4.88/macsonic.patch
diff --git a/target/linux/patches/4.4.79/mips-xz.patch b/target/linux/patches/4.4.88/mips-xz.patch
index 5cfac6254..5cfac6254 100644
--- a/target/linux/patches/4.4.79/mips-xz.patch
+++ b/target/linux/patches/4.4.88/mips-xz.patch
diff --git a/target/linux/patches/4.4.79/patch-realtime b/target/linux/patches/4.4.88/patch-realtime
index b49cd6f03..b49cd6f03 100644
--- a/target/linux/patches/4.4.79/patch-realtime
+++ b/target/linux/patches/4.4.88/patch-realtime
diff --git a/target/linux/patches/4.12.10/startup.patch b/target/linux/patches/4.4.88/startup.patch
index e54ac19a6..e54ac19a6 100644
--- a/target/linux/patches/4.12.10/startup.patch
+++ b/target/linux/patches/4.4.88/startup.patch
diff --git a/target/linux/patches/4.4.79/use-libgcc-for-sh.patch b/target/linux/patches/4.4.88/use-libgcc-for-sh.patch
index 6420219b0..6420219b0 100644
--- a/target/linux/patches/4.4.79/use-libgcc-for-sh.patch
+++ b/target/linux/patches/4.4.88/use-libgcc-for-sh.patch
diff --git a/target/linux/patches/4.4.79/versatile-nommu.patch b/target/linux/patches/4.4.88/versatile-nommu.patch
index 96140b30c..96140b30c 100644
--- a/target/linux/patches/4.4.79/versatile-nommu.patch
+++ b/target/linux/patches/4.4.88/versatile-nommu.patch
diff --git a/target/linux/patches/4.6.2/riscv-04032017.patch b/target/linux/patches/4.6.2/riscv-04032017.patch
deleted file mode 100644
index 019ee3173..000000000
--- a/target/linux/patches/4.6.2/riscv-04032017.patch
+++ /dev/null
@@ -1,9424 +0,0 @@
-diff -Nur linux-4.6.2/arch/.gitignore linux-4.6.2.riscv/arch/.gitignore
---- linux-4.6.2/arch/.gitignore	2016-06-08 03:23:53.000000000 +0200
-+++ linux-4.6.2.riscv/arch/.gitignore	2017-03-04 02:48:34.162887952 +0100
-@@ -1,2 +1,3 @@
--i386
--x86_64
-+# In ../, we ignored everything, so suppress that.
-+!riscv/
-+
-diff -Nur linux-4.6.2/arch/riscv/configs/riscv64_qemu linux-4.6.2.riscv/arch/riscv/configs/riscv64_qemu
---- linux-4.6.2/arch/riscv/configs/riscv64_qemu	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/configs/riscv64_qemu	2017-03-04 02:48:34.162887952 +0100
-@@ -0,0 +1,64 @@
-+# CONFIG_COMPACTION is not set
-+# CONFIG_CROSS_MEMORY_ATTACH is not set
-+CONFIG_HZ_100=y
-+CONFIG_CROSS_COMPILE="riscv64-unknown-linux-gnu-"
-+CONFIG_DEFAULT_HOSTNAME="ucbvax"
-+CONFIG_NAMESPACES=y
-+CONFIG_EMBEDDED=y
-+# CONFIG_BLK_DEV_BSG is not set
-+CONFIG_PARTITION_ADVANCED=y
-+# CONFIG_IOSCHED_DEADLINE is not set
-+CONFIG_NET=y
-+CONFIG_PACKET=y
-+CONFIG_UNIX=y
-+CONFIG_INET=y
-+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-+# CONFIG_INET_XFRM_MODE_BEET is not set
-+# CONFIG_INET_LRO is not set
-+# CONFIG_INET_DIAG is not set
-+# CONFIG_IPV6 is not set
-+# CONFIG_WIRELESS is not set
-+CONFIG_DEVTMPFS=y
-+CONFIG_DEVTMPFS_MOUNT=y
-+# CONFIG_FIRMWARE_IN_KERNEL is not set
-+# CONFIG_BLK_DEV is not set
-+CONFIG_SCSI=y
-+CONFIG_BLK_DEV_SD=y
-+CONFIG_SCSI_VIRTIO=y
-+CONFIG_NETDEVICES=y
-+CONFIG_VIRTIO_NET=y
-+# CONFIG_ETHERNET is not set
-+# CONFIG_WLAN is not set
-+# CONFIG_INPUT_MOUSEDEV is not set
-+# CONFIG_INPUT_KEYBOARD is not set
-+# CONFIG_INPUT_MOUSE is not set
-+# CONFIG_VT is not set
-+CONFIG_SERIAL_8250=y
-+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
-+CONFIG_SERIAL_8250_CONSOLE=y
-+CONFIG_SERIAL_8250_NR_UARTS=1
-+CONFIG_SERIAL_8250_RUNTIME_UARTS=1
-+CONFIG_VIRTIO_CONSOLE=y
-+# CONFIG_HW_RANDOM is not set
-+# CONFIG_HWMON is not set
-+CONFIG_FB=y
-+# CONFIG_USB_SUPPORT is not set
-+CONFIG_VIRTIO_MMIO=y
-+CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
-+# CONFIG_IOMMU_SUPPORT is not set
-+CONFIG_EXT4_FS=y
-+# CONFIG_FILE_LOCKING is not set
-+# CONFIG_DNOTIFY is not set
-+# CONFIG_INOTIFY_USER is not set
-+# CONFIG_PROC_PAGE_MONITOR is not set
-+CONFIG_TMPFS=y
-+# CONFIG_MISC_FILESYSTEMS is not set
-+# CONFIG_NETWORK_FILESYSTEMS is not set
-+CONFIG_CMDLINE_BOOL=y
-+CONFIG_CMDLINE="virtio_mmio.device=0x200@0x400:1 virtio_mmio.device=0x200@0x600:2 virtio_mmio.device=0x200@0x800:3 lpj=100000"
-+CONFIG_CMDLINE_OVERRIDE=y
-+CONFIG_PRINTK_TIME=y
-+CONFIG_DEBUG_SECTION_MISMATCH=y
-+# CONFIG_CRYPTO_ANSI_CPRNG is not set
-+# CONFIG_CRYPTO_HW is not set
-diff -Nur linux-4.6.2/arch/riscv/configs/riscv64_spike linux-4.6.2.riscv/arch/riscv/configs/riscv64_spike
---- linux-4.6.2/arch/riscv/configs/riscv64_spike	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/configs/riscv64_spike	2017-03-04 02:48:34.162887952 +0100
-@@ -0,0 +1,929 @@
-+#
-+# Automatically generated file; DO NOT EDIT.
-+# Linux/riscv 3.14.29 Kernel Configuration
-+#
-+CONFIG_RISCV=y
-+CONFIG_MMU=y
-+CONFIG_PCI=y
-+CONFIG_STACKTRACE_SUPPORT=y
-+CONFIG_RWSEM_GENERIC_SPINLOCK=y
-+CONFIG_GENERIC_BUG=y
-+CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
-+CONFIG_GENERIC_CALIBRATE_DELAY=y
-+CONFIG_GENERIC_CSUM=y
-+CONFIG_GENERIC_HWEIGHT=y
-+
-+#
-+# Platform type
-+#
-+CONFIG_CPU_RV_ROCKET=y
-+# CONFIG_CPU_RV_GENERIC is not set
-+CONFIG_CPU_SUPPORTS_64BIT_KERNEL=y
-+CONFIG_RV_ATOMIC=y
-+# CONFIG_RV_SYSRISCV_ATOMIC is not set
-+CONFIG_SBI_CONSOLE=y
-+
-+#
-+# Kernel type
-+#
-+CONFIG_64BIT=y
-+CONFIG_FLATMEM=y
-+CONFIG_FLAT_NODE_MEM_MAP=y
-+CONFIG_HAVE_MEMBLOCK=y
-+CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
-+# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
-+CONFIG_PAGEFLAGS_EXTENDED=y
-+CONFIG_SPLIT_PTLOCK_CPUS=4
-+# CONFIG_COMPACTION is not set
-+CONFIG_PHYS_ADDR_T_64BIT=y
-+CONFIG_ZONE_DMA_FLAG=0
-+# CONFIG_KSM is not set
-+CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
-+# CONFIG_CROSS_MEMORY_ATTACH is not set
-+CONFIG_NEED_PER_CPU_KM=y
-+# CONFIG_CLEANCACHE is not set
-+# CONFIG_FRONTSWAP is not set
-+# CONFIG_CMA is not set
-+# CONFIG_ZBUD is not set
-+# CONFIG_ZSMALLOC is not set
-+CONFIG_PREEMPT_NONE=y
-+# CONFIG_PREEMPT_VOLUNTARY is not set
-+# CONFIG_PREEMPT is not set
-+CONFIG_HZ_100=y
-+# CONFIG_HZ_250 is not set
-+# CONFIG_HZ_300 is not set
-+# CONFIG_HZ_1000 is not set
-+CONFIG_HZ=100
-+# CONFIG_SCHED_HRTICK is not set
-+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-+CONFIG_IRQ_WORK=y
-+
-+#
-+# General setup
-+#
-+CONFIG_BROKEN_ON_SMP=y
-+CONFIG_INIT_ENV_ARG_LIMIT=32
-+CONFIG_CROSS_COMPILE="riscv64-unknown-linux-gnu-"
-+# CONFIG_COMPILE_TEST is not set
-+CONFIG_LOCALVERSION=""
-+CONFIG_LOCALVERSION_AUTO=y
-+CONFIG_DEFAULT_HOSTNAME="ucbvax"
-+CONFIG_SWAP=y
-+# CONFIG_SYSVIPC is not set
-+# CONFIG_POSIX_MQUEUE is not set
-+# CONFIG_FHANDLE is not set
-+# CONFIG_AUDIT is not set
-+
-+#
-+# IRQ subsystem
-+#
-+CONFIG_GENERIC_IRQ_SHOW=y
-+CONFIG_GENERIC_CLOCKEVENTS=y
-+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
-+
-+#
-+# Timers subsystem
-+#
-+CONFIG_HZ_PERIODIC=y
-+# CONFIG_NO_HZ_IDLE is not set
-+# CONFIG_NO_HZ is not set
-+# CONFIG_HIGH_RES_TIMERS is not set
-+
-+#
-+# CPU/Task time and stats accounting
-+#
-+CONFIG_TICK_CPU_ACCOUNTING=y
-+# CONFIG_BSD_PROCESS_ACCT is not set
-+# CONFIG_TASKSTATS is not set
-+
-+#
-+# RCU Subsystem
-+#
-+CONFIG_TINY_RCU=y
-+# CONFIG_PREEMPT_RCU is not set
-+# CONFIG_RCU_STALL_COMMON is not set
-+# CONFIG_TREE_RCU_TRACE is not set
-+# CONFIG_IKCONFIG is not set
-+CONFIG_LOG_BUF_SHIFT=17
-+# CONFIG_CGROUPS is not set
-+# CONFIG_CHECKPOINT_RESTORE is not set
-+CONFIG_NAMESPACES=y
-+CONFIG_UTS_NS=y
-+# CONFIG_USER_NS is not set
-+CONFIG_PID_NS=y
-+CONFIG_NET_NS=y
-+# CONFIG_SCHED_AUTOGROUP is not set
-+# CONFIG_RELAY is not set
-+# CONFIG_BLK_DEV_INITRD is not set
-+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-+CONFIG_SYSCTL=y
-+CONFIG_ANON_INODES=y
-+CONFIG_SYSCTL_EXCEPTION_TRACE=y
-+CONFIG_EXPERT=y
-+# CONFIG_SYSCTL_SYSCALL is not set
-+CONFIG_KALLSYMS=y
-+# CONFIG_KALLSYMS_ALL is not set
-+CONFIG_PRINTK=y
-+CONFIG_BUG=y
-+CONFIG_ELF_CORE=y
-+CONFIG_BASE_FULL=y
-+CONFIG_FUTEX=y
-+CONFIG_EPOLL=y
-+CONFIG_SIGNALFD=y
-+CONFIG_TIMERFD=y
-+CONFIG_EVENTFD=y
-+CONFIG_SHMEM=y
-+CONFIG_AIO=y
-+CONFIG_EMBEDDED=y
-+
-+#
-+# Kernel Performance Events And Counters
-+#
-+CONFIG_VM_EVENT_COUNTERS=y
-+CONFIG_COMPAT_BRK=y
-+# CONFIG_SLAB is not set
-+CONFIG_SLUB=y
-+# CONFIG_SLOB is not set
-+# CONFIG_PROFILING is not set
-+CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
-+# CONFIG_CC_STACKPROTECTOR is not set
-+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
-+CONFIG_CLONE_BACKWARDS=y
-+
-+#
-+# GCOV-based kernel profiling
-+#
-+# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
-+CONFIG_RT_MUTEXES=y
-+CONFIG_BASE_SMALL=0
-+# CONFIG_MODULES is not set
-+CONFIG_BLOCK=y
-+# CONFIG_BLK_DEV_BSG is not set
-+# CONFIG_BLK_DEV_BSGLIB is not set
-+# CONFIG_BLK_DEV_INTEGRITY is not set
-+# CONFIG_BLK_CMDLINE_PARSER is not set
-+
-+#
-+# Partition Types
-+#
-+CONFIG_PARTITION_ADVANCED=y
-+# CONFIG_ACORN_PARTITION is not set
-+# CONFIG_AIX_PARTITION is not set
-+# CONFIG_OSF_PARTITION is not set
-+# CONFIG_AMIGA_PARTITION is not set
-+# CONFIG_ATARI_PARTITION is not set
-+# CONFIG_MAC_PARTITION is not set
-+CONFIG_MSDOS_PARTITION=y
-+# CONFIG_BSD_DISKLABEL is not set
-+# CONFIG_MINIX_SUBPARTITION is not set
-+# CONFIG_SOLARIS_X86_PARTITION is not set
-+# CONFIG_UNIXWARE_DISKLABEL is not set
-+# CONFIG_LDM_PARTITION is not set
-+# CONFIG_SGI_PARTITION is not set
-+# CONFIG_ULTRIX_PARTITION is not set
-+# CONFIG_SUN_PARTITION is not set
-+# CONFIG_KARMA_PARTITION is not set
-+# CONFIG_EFI_PARTITION is not set
-+# CONFIG_SYSV68_PARTITION is not set
-+# CONFIG_CMDLINE_PARTITION is not set
-+
-+#
-+# IO Schedulers
-+#
-+CONFIG_IOSCHED_NOOP=y
-+# CONFIG_IOSCHED_DEADLINE is not set
-+CONFIG_IOSCHED_CFQ=y
-+CONFIG_DEFAULT_CFQ=y
-+# CONFIG_DEFAULT_NOOP is not set
-+CONFIG_DEFAULT_IOSCHED="cfq"
-+CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
-+CONFIG_INLINE_READ_UNLOCK=y
-+CONFIG_INLINE_READ_UNLOCK_IRQ=y
-+CONFIG_INLINE_WRITE_UNLOCK=y
-+CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
-+# CONFIG_FREEZER is not set
-+
-+#
-+# Executable file formats
-+#
-+CONFIG_BINFMT_ELF=y
-+CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
-+CONFIG_BINFMT_SCRIPT=y
-+# CONFIG_HAVE_AOUT is not set
-+# CONFIG_BINFMT_MISC is not set
-+CONFIG_COREDUMP=y
-+
-+#
-+# Power management options
-+#
-+# CONFIG_PM_RUNTIME is not set
-+CONFIG_NET=y
-+
-+#
-+# Networking options
-+#
-+# CONFIG_PACKET is not set
-+CONFIG_UNIX=y
-+# CONFIG_UNIX_DIAG is not set
-+# CONFIG_XFRM_USER is not set
-+# CONFIG_NET_KEY is not set
-+CONFIG_INET=y
-+# CONFIG_IP_MULTICAST is not set
-+# CONFIG_IP_ADVANCED_ROUTER is not set
-+# CONFIG_IP_PNP is not set
-+# CONFIG_NET_IPIP is not set
-+# CONFIG_NET_IPGRE_DEMUX is not set
-+# CONFIG_NET_IP_TUNNEL is not set
-+# CONFIG_SYN_COOKIES is not set
-+# CONFIG_INET_AH is not set
-+# CONFIG_INET_ESP is not set
-+# CONFIG_INET_IPCOMP is not set
-+# CONFIG_INET_XFRM_TUNNEL is not set
-+# CONFIG_INET_TUNNEL is not set
-+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-+# CONFIG_INET_XFRM_MODE_BEET is not set
-+# CONFIG_INET_LRO is not set
-+# CONFIG_INET_DIAG is not set
-+# CONFIG_TCP_CONG_ADVANCED is not set
-+CONFIG_TCP_CONG_CUBIC=y
-+CONFIG_DEFAULT_TCP_CONG="cubic"
-+# CONFIG_TCP_MD5SIG is not set
-+# CONFIG_IPV6 is not set
-+# CONFIG_NETWORK_SECMARK is not set
-+# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
-+# CONFIG_NETFILTER is not set
-+# CONFIG_IP_DCCP is not set
-+# CONFIG_IP_SCTP is not set
-+# CONFIG_RDS is not set
-+# CONFIG_TIPC is not set
-+# CONFIG_ATM is not set
-+# CONFIG_L2TP is not set
-+# CONFIG_BRIDGE is not set
-+# CONFIG_VLAN_8021Q is not set
-+# CONFIG_DECNET is not set
-+# CONFIG_LLC2 is not set
-+# CONFIG_IPX is not set
-+# CONFIG_ATALK is not set
-+# CONFIG_X25 is not set
-+# CONFIG_LAPB is not set
-+# CONFIG_PHONET is not set
-+# CONFIG_IEEE802154 is not set
-+# CONFIG_NET_SCHED is not set
-+# CONFIG_DCB is not set
-+# CONFIG_BATMAN_ADV is not set
-+# CONFIG_OPENVSWITCH is not set
-+# CONFIG_VSOCKETS is not set
-+# CONFIG_NETLINK_MMAP is not set
-+# CONFIG_NETLINK_DIAG is not set
-+# CONFIG_NET_MPLS_GSO is not set
-+# CONFIG_HSR is not set
-+CONFIG_NET_RX_BUSY_POLL=y
-+
-+#
-+# Network testing
-+#
-+# CONFIG_NET_PKTGEN is not set
-+# CONFIG_HAMRADIO is not set
-+# CONFIG_CAN is not set
-+# CONFIG_IRDA is not set
-+# CONFIG_BT is not set
-+# CONFIG_AF_RXRPC is not set
-+# CONFIG_WIRELESS is not set
-+# CONFIG_WIMAX is not set
-+# CONFIG_RFKILL is not set
-+# CONFIG_NET_9P is not set
-+# CONFIG_CAIF is not set
-+# CONFIG_CEPH_LIB is not set
-+# CONFIG_NFC is not set
-+
-+#
-+# Device Drivers
-+#
-+
-+#
-+# Generic Driver Options
-+#
-+CONFIG_UEVENT_HELPER_PATH=""
-+CONFIG_DEVTMPFS=y
-+CONFIG_DEVTMPFS_MOUNT=y
-+CONFIG_STANDALONE=y
-+CONFIG_PREVENT_FIRMWARE_BUILD=y
-+CONFIG_FW_LOADER=y
-+# CONFIG_FIRMWARE_IN_KERNEL is not set
-+CONFIG_EXTRA_FIRMWARE=""
-+CONFIG_FW_LOADER_USER_HELPER=y
-+# CONFIG_DEBUG_DRIVER is not set
-+# CONFIG_DEBUG_DEVRES is not set
-+# CONFIG_SYS_HYPERVISOR is not set
-+CONFIG_GENERIC_CPU_DEVICES=y
-+# CONFIG_DMA_SHARED_BUFFER is not set
-+
-+#
-+# Bus devices
-+#
-+# CONFIG_CONNECTOR is not set
-+# CONFIG_MTD is not set
-+# CONFIG_PARPORT is not set
-+# CONFIG_BLK_DEV is not set
-+
-+#
-+# Misc devices
-+#
-+# CONFIG_SENSORS_LIS3LV02D is not set
-+# CONFIG_DUMMY_IRQ is not set
-+# CONFIG_ATMEL_SSC is not set
-+# CONFIG_ENCLOSURE_SERVICES is not set
-+# CONFIG_SRAM is not set
-+# CONFIG_C2PORT is not set
-+
-+#
-+# EEPROM support
-+#
-+# CONFIG_EEPROM_93CX6 is not set
-+
-+#
-+# Texas Instruments shared transport line discipline
-+#
-+
-+#
-+# Altera FPGA firmware download module
-+#
-+
-+#
-+# Intel MIC Host Driver
-+#
-+
-+#
-+# Intel MIC Card Driver
-+#
-+
-+#
-+# SCSI device support
-+#
-+CONFIG_SCSI_MOD=y
-+# CONFIG_RAID_ATTRS is not set
-+# CONFIG_SCSI is not set
-+# CONFIG_SCSI_DMA is not set
-+# CONFIG_SCSI_NETLINK is not set
-+# CONFIG_ATA is not set
-+# CONFIG_MD is not set
-+# CONFIG_NETDEVICES is not set
-+
-+#
-+# Input device support
-+#
-+CONFIG_INPUT=y
-+# CONFIG_INPUT_FF_MEMLESS is not set
-+# CONFIG_INPUT_POLLDEV is not set
-+# CONFIG_INPUT_SPARSEKMAP is not set
-+# CONFIG_INPUT_MATRIXKMAP is not set
-+
-+#
-+# Userland interfaces
-+#
-+# CONFIG_INPUT_MOUSEDEV is not set
-+# CONFIG_INPUT_JOYDEV is not set
-+# CONFIG_INPUT_EVDEV is not set
-+# CONFIG_INPUT_EVBUG is not set
-+
-+#
-+# Input Device Drivers
-+#
-+# CONFIG_INPUT_KEYBOARD is not set
-+# CONFIG_INPUT_MOUSE is not set
-+# CONFIG_INPUT_JOYSTICK is not set
-+# CONFIG_INPUT_TABLET is not set
-+# CONFIG_INPUT_TOUCHSCREEN is not set
-+# CONFIG_INPUT_MISC is not set
-+
-+#
-+# Hardware I/O ports
-+#
-+CONFIG_SERIO=y
-+CONFIG_SERIO_SERPORT=y
-+# CONFIG_SERIO_LIBPS2 is not set
-+# CONFIG_SERIO_RAW is not set
-+# CONFIG_SERIO_ALTERA_PS2 is not set
-+# CONFIG_SERIO_PS2MULT is not set
-+# CONFIG_SERIO_ARC_PS2 is not set
-+# CONFIG_GAMEPORT is not set
-+
-+#
-+# Character devices
-+#
-+CONFIG_TTY=y
-+# CONFIG_VT is not set
-+CONFIG_UNIX98_PTYS=y
-+# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
-+CONFIG_LEGACY_PTYS=y
-+CONFIG_LEGACY_PTY_COUNT=256
-+# CONFIG_SERIAL_NONSTANDARD is not set
-+# CONFIG_N_GSM is not set
-+# CONFIG_TRACE_SINK is not set
-+CONFIG_DEVKMEM=y
-+
-+#
-+# Serial drivers
-+#
-+# CONFIG_SERIAL_8250 is not set
-+
-+#
-+# Non-8250 serial port support
-+#
-+# CONFIG_SERIAL_SCCNXP is not set
-+# CONFIG_SERIAL_TIMBERDALE is not set
-+# CONFIG_SERIAL_ALTERA_JTAGUART is not set
-+# CONFIG_SERIAL_ALTERA_UART is not set
-+# CONFIG_SERIAL_ARC is not set
-+# CONFIG_SERIAL_FSL_LPUART is not set
-+# CONFIG_TTY_PRINTK is not set
-+# CONFIG_IPMI_HANDLER is not set
-+# CONFIG_HW_RANDOM is not set
-+# CONFIG_RTC is not set
-+# CONFIG_GEN_RTC is not set
-+# CONFIG_R3964 is not set
-+
-+#
-+# PCMCIA character devices
-+#
-+# CONFIG_RAW_DRIVER is not set
-+# CONFIG_TCG_TPM is not set
-+# CONFIG_I2C is not set
-+# CONFIG_SPI is not set
-+# CONFIG_HSI is not set
-+
-+#
-+# PPS support
-+#
-+# CONFIG_PPS is not set
-+
-+#
-+# PPS generators support
-+#
-+
-+#
-+# PTP clock support
-+#
-+# CONFIG_PTP_1588_CLOCK is not set
-+
-+#
-+# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
-+#
-+# CONFIG_W1 is not set
-+# CONFIG_POWER_SUPPLY is not set
-+# CONFIG_POWER_AVS is not set
-+# CONFIG_HWMON is not set
-+# CONFIG_THERMAL is not set
-+# CONFIG_WATCHDOG is not set
-+
-+#
-+# Multifunction device drivers
-+#
-+# CONFIG_MFD_CORE is not set
-+# CONFIG_MFD_CROS_EC is not set
-+# CONFIG_HTC_PASIC3 is not set
-+# CONFIG_MFD_KEMPLD is not set
-+# CONFIG_MFD_SM501 is not set
-+# CONFIG_ABX500_CORE is not set
-+# CONFIG_MFD_SYSCON is not set
-+# CONFIG_MFD_TI_AM335X_TSCADC is not set
-+# CONFIG_MFD_TMIO is not set
-+# CONFIG_REGULATOR is not set
-+# CONFIG_MEDIA_SUPPORT is not set
-+
-+#
-+# Graphics support
-+#
-+# CONFIG_VGASTATE is not set
-+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
-+CONFIG_FB=y
-+# CONFIG_FIRMWARE_EDID is not set
-+# CONFIG_FB_DDC is not set
-+# CONFIG_FB_BOOT_VESA_SUPPORT is not set
-+# CONFIG_FB_CFB_FILLRECT is not set
-+# CONFIG_FB_CFB_COPYAREA is not set
-+# CONFIG_FB_CFB_IMAGEBLIT is not set
-+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
-+# CONFIG_FB_SYS_FILLRECT is not set
-+# CONFIG_FB_SYS_COPYAREA is not set
-+# CONFIG_FB_SYS_IMAGEBLIT is not set
-+# CONFIG_FB_FOREIGN_ENDIAN is not set
-+# CONFIG_FB_SYS_FOPS is not set
-+# CONFIG_FB_SVGALIB is not set
-+# CONFIG_FB_MACMODES is not set
-+# CONFIG_FB_BACKLIGHT is not set
-+# CONFIG_FB_MODE_HELPERS is not set
-+# CONFIG_FB_TILEBLITTING is not set
-+
-+#
-+# Frame buffer hardware drivers
-+#
-+# CONFIG_FB_OPENCORES is not set
-+# CONFIG_FB_S1D13XXX is not set
-+# CONFIG_FB_VIRTUAL is not set
-+# CONFIG_FB_METRONOME is not set
-+# CONFIG_FB_BROADSHEET is not set
-+# CONFIG_FB_AUO_K190X is not set
-+# CONFIG_FB_SIMPLE is not set
-+# CONFIG_EXYNOS_VIDEO is not set
-+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-+# CONFIG_LOGO is not set
-+# CONFIG_SOUND is not set
-+
-+#
-+# HID support
-+#
-+CONFIG_HID=y
-+# CONFIG_HIDRAW is not set
-+# CONFIG_UHID is not set
-+CONFIG_HID_GENERIC=y
-+
-+#
-+# Special HID drivers
-+#
-+# CONFIG_HID_A4TECH is not set
-+# CONFIG_HID_ACRUX is not set
-+# CONFIG_HID_APPLE is not set
-+# CONFIG_HID_AUREAL is not set
-+# CONFIG_HID_BELKIN is not set
-+# CONFIG_HID_CHERRY is not set
-+# CONFIG_HID_CHICONY is not set
-+# CONFIG_HID_CYPRESS is not set
-+# CONFIG_HID_DRAGONRISE is not set
-+# CONFIG_HID_EMS_FF is not set
-+# CONFIG_HID_ELECOM is not set
-+# CONFIG_HID_EZKEY is not set
-+# CONFIG_HID_KEYTOUCH is not set
-+# CONFIG_HID_KYE is not set
-+# CONFIG_HID_UCLOGIC is not set
-+# CONFIG_HID_WALTOP is not set
-+# CONFIG_HID_GYRATION is not set
-+# CONFIG_HID_ICADE is not set
-+# CONFIG_HID_TWINHAN is not set
-+# CONFIG_HID_KENSINGTON is not set
-+# CONFIG_HID_LCPOWER is not set
-+# CONFIG_HID_LENOVO_TPKBD is not set
-+# CONFIG_HID_LOGITECH is not set
-+# CONFIG_HID_MAGICMOUSE is not set
-+# CONFIG_HID_MICROSOFT is not set
-+# CONFIG_HID_MONTEREY is not set
-+# CONFIG_HID_MULTITOUCH is not set
-+# CONFIG_HID_ORTEK is not set
-+# CONFIG_HID_PANTHERLORD is not set
-+# CONFIG_HID_PETALYNX is not set
-+# CONFIG_HID_PICOLCD is not set
-+# CONFIG_HID_PRIMAX is not set
-+# CONFIG_HID_SAITEK is not set
-+# CONFIG_HID_SAMSUNG is not set
-+# CONFIG_HID_SPEEDLINK is not set
-+# CONFIG_HID_STEELSERIES is not set
-+# CONFIG_HID_SUNPLUS is not set
-+# CONFIG_HID_GREENASIA is not set
-+# CONFIG_HID_SMARTJOYPLUS is not set
-+# CONFIG_HID_TIVO is not set
-+# CONFIG_HID_TOPSEED is not set
-+# CONFIG_HID_THRUSTMASTER is not set
-+# CONFIG_HID_XINMO is not set
-+# CONFIG_HID_ZEROPLUS is not set
-+# CONFIG_HID_ZYDACRON is not set
-+# CONFIG_HID_SENSOR_HUB is not set
-+CONFIG_USB_OHCI_LITTLE_ENDIAN=y
-+# CONFIG_USB_SUPPORT is not set
-+# CONFIG_MMC is not set
-+# CONFIG_MEMSTICK is not set
-+# CONFIG_NEW_LEDS is not set
-+# CONFIG_ACCESSIBILITY is not set
-+# CONFIG_RTC_CLASS is not set
-+# CONFIG_AUXDISPLAY is not set
-+# CONFIG_UIO is not set
-+# CONFIG_VIRT_DRIVERS is not set
-+
-+#
-+# Virtio drivers
-+#
-+# CONFIG_VIRTIO_MMIO is not set
-+
-+#
-+# Microsoft Hyper-V guest support
-+#
-+# CONFIG_STAGING is not set
-+
-+#
-+# Hardware Spinlock drivers
-+#
-+# CONFIG_MAILBOX is not set
-+# CONFIG_IOMMU_SUPPORT is not set
-+
-+#
-+# Remoteproc drivers
-+#
-+
-+#
-+# Rpmsg drivers
-+#
-+# CONFIG_PM_DEVFREQ is not set
-+# CONFIG_EXTCON is not set
-+# CONFIG_MEMORY is not set
-+# CONFIG_IIO is not set
-+# CONFIG_PWM is not set
-+# CONFIG_IPACK_BUS is not set
-+# CONFIG_RESET_CONTROLLER is not set
-+# CONFIG_FMC is not set
-+
-+#
-+# PHY Subsystem
-+#
-+# CONFIG_GENERIC_PHY is not set
-+# CONFIG_PHY_EXYNOS_MIPI_VIDEO is not set
-+# CONFIG_POWERCAP is not set
-+
-+#
-+# File systems
-+#
-+CONFIG_EXT2_FS=y
-+# CONFIG_EXT2_FS_XATTR is not set
-+# CONFIG_EXT2_FS_XIP is not set
-+# CONFIG_EXT3_FS is not set
-+# CONFIG_EXT4_FS is not set
-+# CONFIG_REISERFS_FS is not set
-+# CONFIG_JFS_FS is not set
-+# CONFIG_XFS_FS is not set
-+# CONFIG_GFS2_FS is not set
-+# CONFIG_BTRFS_FS is not set
-+# CONFIG_NILFS2_FS is not set
-+# CONFIG_FS_POSIX_ACL is not set
-+# CONFIG_FILE_LOCKING is not set
-+# CONFIG_FSNOTIFY is not set
-+# CONFIG_DNOTIFY is not set
-+# CONFIG_INOTIFY_USER is not set
-+# CONFIG_FANOTIFY is not set
-+# CONFIG_QUOTA is not set
-+# CONFIG_QUOTACTL is not set
-+# CONFIG_AUTOFS4_FS is not set
-+# CONFIG_FUSE_FS is not set
-+
-+#
-+# Caches
-+#
-+# CONFIG_FSCACHE is not set
-+
-+#
-+# CD-ROM/DVD Filesystems
-+#
-+# CONFIG_ISO9660_FS is not set
-+# CONFIG_UDF_FS is not set
-+
-+#
-+# DOS/FAT/NT Filesystems
-+#
-+# CONFIG_MSDOS_FS is not set
-+# CONFIG_VFAT_FS is not set
-+# CONFIG_NTFS_FS is not set
-+
-+#
-+# Pseudo filesystems
-+#
-+CONFIG_PROC_FS=y
-+# CONFIG_PROC_KCORE is not set
-+CONFIG_PROC_SYSCTL=y
-+# CONFIG_PROC_PAGE_MONITOR is not set
-+# CONFIG_SYSFS is not set
-+CONFIG_TMPFS=y
-+# CONFIG_TMPFS_POSIX_ACL is not set
-+# CONFIG_TMPFS_XATTR is not set
-+# CONFIG_HUGETLB_PAGE is not set
-+# CONFIG_CONFIGFS_FS is not set
-+# CONFIG_MISC_FILESYSTEMS is not set
-+# CONFIG_NETWORK_FILESYSTEMS is not set
-+# CONFIG_NLS is not set
-+
-+#
-+# Kernel hacking
-+#
-+# CONFIG_CMDLINE_BOOL is not set
-+# CONFIG_EARLY_PRINTK is not set
-+
-+#
-+# printk and dmesg options
-+#
-+CONFIG_PRINTK_TIME=y
-+CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
-+# CONFIG_BOOT_PRINTK_DELAY is not set
-+
-+#
-+# Compile-time checks and compiler options
-+#
-+# CONFIG_DEBUG_INFO is not set
-+CONFIG_ENABLE_WARN_DEPRECATED=y
-+CONFIG_ENABLE_MUST_CHECK=y
-+CONFIG_FRAME_WARN=2048
-+# CONFIG_STRIP_ASM_SYMS is not set
-+# CONFIG_READABLE_ASM is not set
-+# CONFIG_UNUSED_SYMBOLS is not set
-+# CONFIG_DEBUG_FS is not set
-+# CONFIG_HEADERS_CHECK is not set
-+CONFIG_DEBUG_SECTION_MISMATCH=y
-+CONFIG_ARCH_WANT_FRAME_POINTERS=y
-+# CONFIG_FRAME_POINTER is not set
-+# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
-+# CONFIG_MAGIC_SYSRQ is not set
-+CONFIG_DEBUG_KERNEL=y
-+
-+#
-+# Memory Debugging
-+#
-+# CONFIG_DEBUG_PAGEALLOC is not set
-+# CONFIG_DEBUG_OBJECTS is not set
-+# CONFIG_DEBUG_STACK_USAGE is not set
-+# CONFIG_DEBUG_VM is not set
-+# CONFIG_DEBUG_MEMORY_INIT is not set
-+# CONFIG_DEBUG_SHIRQ is not set
-+
-+#
-+# Debug Lockups and Hangs
-+#
-+# CONFIG_LOCKUP_DETECTOR is not set
-+# CONFIG_DETECT_HUNG_TASK is not set
-+# CONFIG_PANIC_ON_OOPS is not set
-+CONFIG_PANIC_ON_OOPS_VALUE=0
-+CONFIG_PANIC_TIMEOUT=0
-+CONFIG_SCHED_DEBUG=y
-+# CONFIG_SCHEDSTATS is not set
-+# CONFIG_TIMER_STATS is not set
-+
-+#
-+# Lock Debugging (spinlocks, mutexes, etc...)
-+#
-+# CONFIG_DEBUG_RT_MUTEXES is not set
-+# CONFIG_RT_MUTEX_TESTER is not set
-+# CONFIG_DEBUG_SPINLOCK is not set
-+# CONFIG_DEBUG_MUTEXES is not set
-+# CONFIG_DEBUG_ATOMIC_SLEEP is not set
-+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-+# CONFIG_DEBUG_KOBJECT is not set
-+CONFIG_DEBUG_BUGVERBOSE=y
-+# CONFIG_DEBUG_WRITECOUNT is not set
-+# CONFIG_DEBUG_LIST is not set
-+# CONFIG_DEBUG_SG is not set
-+# CONFIG_DEBUG_NOTIFIERS is not set
-+# CONFIG_DEBUG_CREDENTIALS is not set
-+
-+#
-+# RCU Debugging
-+#
-+# CONFIG_SPARSE_RCU_POINTER is not set
-+# CONFIG_RCU_TORTURE_TEST is not set
-+# CONFIG_RCU_TRACE is not set
-+# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
-+# CONFIG_NOTIFIER_ERROR_INJECTION is not set
-+# CONFIG_FAULT_INJECTION is not set
-+
-+#
-+# Runtime Testing
-+#
-+# CONFIG_TEST_LIST_SORT is not set
-+# CONFIG_BACKTRACE_SELF_TEST is not set
-+# CONFIG_RBTREE_TEST is not set
-+# CONFIG_ATOMIC64_SELFTEST is not set
-+# CONFIG_TEST_STRING_HELPERS is not set
-+# CONFIG_TEST_KSTRTOX is not set
-+# CONFIG_SAMPLES is not set
-+
-+#
-+# Security options
-+#
-+# CONFIG_KEYS is not set
-+# CONFIG_SECURITY_DMESG_RESTRICT is not set
-+# CONFIG_SECURITYFS is not set
-+CONFIG_DEFAULT_SECURITY_DAC=y
-+CONFIG_DEFAULT_SECURITY=""
-+CONFIG_CRYPTO=y
-+
-+#
-+# Crypto core or helper
-+#
-+CONFIG_CRYPTO_ALGAPI=y
-+CONFIG_CRYPTO_ALGAPI2=y
-+# CONFIG_CRYPTO_MANAGER is not set
-+# CONFIG_CRYPTO_MANAGER2 is not set
-+# CONFIG_CRYPTO_USER is not set
-+# CONFIG_CRYPTO_GF128MUL is not set
-+# CONFIG_CRYPTO_NULL is not set
-+# CONFIG_CRYPTO_CRYPTD is not set
-+# CONFIG_CRYPTO_AUTHENC is not set
-+
-+#
-+# Authenticated Encryption with Associated Data
-+#
-+# CONFIG_CRYPTO_CCM is not set
-+# CONFIG_CRYPTO_GCM is not set
-+# CONFIG_CRYPTO_SEQIV is not set
-+
-+#
-+# Block modes
-+#
-+# CONFIG_CRYPTO_CBC is not set
-+# CONFIG_CRYPTO_CTR is not set
-+# CONFIG_CRYPTO_CTS is not set
-+# CONFIG_CRYPTO_ECB is not set
-+# CONFIG_CRYPTO_LRW is not set
-+# CONFIG_CRYPTO_PCBC is not set
-+# CONFIG_CRYPTO_XTS is not set
-+
-+#
-+# Hash modes
-+#
-+# CONFIG_CRYPTO_CMAC is not set
-+# CONFIG_CRYPTO_HMAC is not set
-+# CONFIG_CRYPTO_XCBC is not set
-+# CONFIG_CRYPTO_VMAC is not set
-+
-+#
-+# Digest
-+#
-+# CONFIG_CRYPTO_CRC32C is not set
-+# CONFIG_CRYPTO_CRC32 is not set
-+# CONFIG_CRYPTO_CRCT10DIF is not set
-+# CONFIG_CRYPTO_GHASH is not set
-+# CONFIG_CRYPTO_MD4 is not set
-+# CONFIG_CRYPTO_MD5 is not set
-+# CONFIG_CRYPTO_MICHAEL_MIC is not set
-+# CONFIG_CRYPTO_RMD128 is not set
-+# CONFIG_CRYPTO_RMD160 is not set
-+# CONFIG_CRYPTO_RMD256 is not set
-+# CONFIG_CRYPTO_RMD320 is not set
-+# CONFIG_CRYPTO_SHA1 is not set
-+# CONFIG_CRYPTO_SHA256 is not set
-+# CONFIG_CRYPTO_SHA512 is not set
-+# CONFIG_CRYPTO_TGR192 is not set
-+# CONFIG_CRYPTO_WP512 is not set
-+
-+#
-+# Ciphers
-+#
-+CONFIG_CRYPTO_AES=y
-+# CONFIG_CRYPTO_ANUBIS is not set
-+# CONFIG_CRYPTO_ARC4 is not set
-+# CONFIG_CRYPTO_BLOWFISH is not set
-+# CONFIG_CRYPTO_CAMELLIA is not set
-+# CONFIG_CRYPTO_CAST5 is not set
-+# CONFIG_CRYPTO_CAST6 is not set
-+# CONFIG_CRYPTO_DES is not set
-+# CONFIG_CRYPTO_FCRYPT is not set
-+# CONFIG_CRYPTO_KHAZAD is not set
-+# CONFIG_CRYPTO_SALSA20 is not set
-+# CONFIG_CRYPTO_SEED is not set
-+# CONFIG_CRYPTO_SERPENT is not set
-+# CONFIG_CRYPTO_TEA is not set
-+# CONFIG_CRYPTO_TWOFISH is not set
-+
-+#
-+# Compression
-+#
-+# CONFIG_CRYPTO_DEFLATE is not set
-+# CONFIG_CRYPTO_ZLIB is not set
-+# CONFIG_CRYPTO_LZO is not set
-+# CONFIG_CRYPTO_LZ4 is not set
-+# CONFIG_CRYPTO_LZ4HC is not set
-+
-+#
-+# Random Number Generation
-+#
-+# CONFIG_CRYPTO_ANSI_CPRNG is not set
-+# CONFIG_CRYPTO_USER_API_HASH is not set
-+# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
-+# CONFIG_CRYPTO_HW is not set
-+# CONFIG_BINARY_PRINTF is not set
-+
-+#
-+# Library routines
-+#
-+CONFIG_BITREVERSE=y
-+CONFIG_GENERIC_STRNCPY_FROM_USER=y
-+CONFIG_GENERIC_STRNLEN_USER=y
-+CONFIG_GENERIC_NET_UTILS=y
-+CONFIG_GENERIC_IO=y
-+# CONFIG_CRC_CCITT is not set
-+# CONFIG_CRC16 is not set
-+# CONFIG_CRC_T10DIF is not set
-+# CONFIG_CRC_ITU_T is not set
-+CONFIG_CRC32=y
-+# CONFIG_CRC32_SELFTEST is not set
-+CONFIG_CRC32_SLICEBY8=y
-+# CONFIG_CRC32_SLICEBY4 is not set
-+# CONFIG_CRC32_SARWATE is not set
-+# CONFIG_CRC32_BIT is not set
-+# CONFIG_CRC7 is not set
-+# CONFIG_LIBCRC32C is not set
-+# CONFIG_CRC8 is not set
-+# CONFIG_RANDOM32_SELFTEST is not set
-+# CONFIG_XZ_DEC is not set
-+# CONFIG_XZ_DEC_BCJ is not set
-+CONFIG_HAS_IOMEM=y
-+CONFIG_HAS_IOPORT=y
-+CONFIG_NLATTR=y
-+CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
-+# CONFIG_AVERAGE is not set
-+# CONFIG_CORDIC is not set
-+# CONFIG_DDR is not set
-diff -Nur linux-4.6.2/arch/riscv/.gitignore linux-4.6.2.riscv/arch/riscv/.gitignore
---- linux-4.6.2/arch/riscv/.gitignore	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/.gitignore	2017-03-04 02:48:34.162887952 +0100
-@@ -0,0 +1,35 @@
-+# Now un-ignore all files.
-+!*
-+
-+# But then re-ignore the files listed in the Linux .gitignore
-+# Normal rules
-+#
-+.*
-+*.o
-+*.o.*
-+*.a
-+*.s
-+*.ko
-+*.so
-+*.so.dbg
-+*.mod.c
-+*.i
-+*.lst
-+*.symtypes
-+*.order
-+modules.builtin
-+*.elf
-+*.bin
-+*.gz
-+*.bz2
-+*.lzma
-+*.xz
-+*.lzo
-+*.patch
-+*.gcno
-+
-+include/generated
-+kernel/vmlinux.lds
-+
-+# Then reinclude .gitignore.
-+!.gitignore
-diff -Nur linux-4.6.2/arch/riscv/include/asm/asm.h linux-4.6.2.riscv/arch/riscv/include/asm/asm.h
---- linux-4.6.2/arch/riscv/include/asm/asm.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/asm.h	2017-03-04 02:48:34.162887952 +0100
-@@ -0,0 +1,51 @@
-+#ifndef _ASM_RISCV_ASM_H
-+#define _ASM_RISCV_ASM_H
-+
-+#ifdef __ASSEMBLY__
-+#define __ASM_STR(x)	x
-+#else
-+#define __ASM_STR(x)	#x
-+#endif
-+
-+#if __riscv_xlen == 64
-+#define __REG_SEL(a,b)	__ASM_STR(a)
-+#elif __riscv_xlen == 32
-+#define __REG_SEL(a,b)	__ASM_STR(b)
-+#else
-+#error "Unexpected __riscv_xlen"
-+#endif
-+
-+#define REG_L		__REG_SEL(ld, lw)
-+#define REG_S		__REG_SEL(sd, sw)
-+#define SZREG		__REG_SEL(8, 4)
-+#define LGREG		__REG_SEL(3, 2)
-+
-+#if __SIZEOF_POINTER__ == 8
-+#define __PTR_SEL(a,b)	__ASM_STR(a)
-+#elif __SIZEOF_POINTER__ == 4
-+#define __PTR_SEL(a,b)	__ASM_STR(b)
-+#else
-+#error "Unexpected __SIZEOF_POINTER__"
-+#endif
-+
-+#define PTR		__PTR_SEL(.dword, .word)
-+#define SZPTR		__PTR_SEL(8, 4)
-+#define LGPTR		__PTR_SEL(3, 2)
-+
-+#if (__SIZEOF_INT__ == 4)
-+#define INT		__ASM_STR(.word)
-+#define SZINT		__ASM_STR(4)
-+#define LGINT		__ASM_STR(2)
-+#else
-+#error "Unexpected __SIZEOF_INT__"
-+#endif
-+
-+#if (__SIZEOF_SHORT__ == 2)
-+#define SHORT		__ASM_STR(.half)
-+#define SZSHORT		__ASM_STR(2)
-+#define LGSHORT		__ASM_STR(1)
-+#else
-+#error "Unexpected __SIZEOF_SHORT__"
-+#endif
-+
-+#endif /* _ASM_RISCV_ASM_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/asm-offsets.h linux-4.6.2.riscv/arch/riscv/include/asm/asm-offsets.h
---- linux-4.6.2/arch/riscv/include/asm/asm-offsets.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/asm-offsets.h	2017-03-04 02:48:34.162887952 +0100
-@@ -0,0 +1 @@
-+#include <generated/asm-offsets.h>
-diff -Nur linux-4.6.2/arch/riscv/include/asm/atomic64.h linux-4.6.2.riscv/arch/riscv/include/asm/atomic64.h
---- linux-4.6.2/arch/riscv/include/asm/atomic64.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/atomic64.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,287 @@
-+#ifndef _ASM_RISCV_ATOMIC64_H
-+#define _ASM_RISCV_ATOMIC64_H
-+
-+#ifdef CONFIG_GENERIC_ATOMIC64
-+#include <asm-generic/atomic64.h>
-+#else /* !CONFIG_GENERIC_ATOMIC64 */
-+
-+#include <linux/types.h>
-+
-+#define ATOMIC64_INIT(i)	{ (i) }
-+
-+/**
-+ * atomic64_read - read atomic64 variable
-+ * @v: pointer of type atomic64_t
-+ *
-+ * Atomically reads the value of @v.
-+ */
-+static inline s64 atomic64_read(const atomic64_t *v)
-+{
-+	return *((volatile long *)(&(v->counter)));
-+}
-+
-+/**
-+ * atomic64_set - set atomic64 variable
-+ * @v: pointer to type atomic64_t
-+ * @i: required value
-+ *
-+ * Atomically sets the value of @v to @i.
-+ */
-+static inline void atomic64_set(atomic64_t *v, s64 i)
-+{
-+	v->counter = i;
-+}
-+
-+/**
-+ * atomic64_add - add integer to atomic64 variable
-+ * @i: integer value to add
-+ * @v: pointer to type atomic64_t
-+ *
-+ * Atomically adds @i to @v.
-+ */
-+static inline void atomic64_add(s64 a, atomic64_t *v)
-+{
-+	__asm__ __volatile__ (
-+		"amoadd.d zero, %1, %0"
-+		: "+A" (v->counter)
-+		: "r" (a));
-+}
-+
-+/**
-+ * atomic64_sub - subtract the atomic64 variable
-+ * @i: integer value to subtract
-+ * @v: pointer to type atomic64_t
-+ *
-+ * Atomically subtracts @i from @v.
-+ */
-+static inline void atomic64_sub(s64 a, atomic64_t *v)
-+{
-+	atomic64_add(-a, v);
-+}
-+
-+/**
-+ * atomic64_add_return - add and return
-+ * @i: integer value to add
-+ * @v: pointer to type atomic64_t
-+ *
-+ * Atomically adds @i to @v and returns @i + @v
-+ */
-+static inline s64 atomic64_add_return(s64 a, atomic64_t *v)
-+{
-+	register s64 c;
-+	__asm__ __volatile__ (
-+		"amoadd.d %0, %2, %1"
-+		: "=r" (c), "+A" (v->counter)
-+		: "r" (a));
-+	return (c + a);
-+}
-+
-+static inline s64 atomic64_sub_return(s64 a, atomic64_t *v)
-+{
-+	return atomic64_add_return(-a, v);
-+}
-+
-+/**
-+ * atomic64_inc - increment atomic64 variable
-+ * @v: pointer to type atomic64_t
-+ *
-+ * Atomically increments @v by 1.
-+ */
-+static inline void atomic64_inc(atomic64_t *v)
-+{
-+	atomic64_add(1L, v);
-+}
-+
-+/**
-+ * atomic64_dec - decrement atomic64 variable
-+ * @v: pointer to type atomic64_t
-+ *
-+ * Atomically decrements @v by 1.
-+ */
-+static inline void atomic64_dec(atomic64_t *v)
-+{
-+	atomic64_add(-1L, v);
-+}
-+
-+static inline s64 atomic64_inc_return(atomic64_t *v)
-+{
-+	return atomic64_add_return(1L, v);
-+}
-+
-+static inline s64 atomic64_dec_return(atomic64_t *v)
-+{
-+	return atomic64_add_return(-1L, v);
-+}
-+
-+/**
-+ * atomic64_inc_and_test - increment and test
-+ * @v: pointer to type atomic64_t
-+ *
-+ * Atomically increments @v by 1
-+ * and returns true if the result is zero, or false for all
-+ * other cases.
-+ */
-+static inline int atomic64_inc_and_test(atomic64_t *v)
-+{
-+	return (atomic64_inc_return(v) == 0);
-+}
-+
-+/**
-+ * atomic64_dec_and_test - decrement and test
-+ * @v: pointer to type atomic64_t
-+ *
-+ * Atomically decrements @v by 1 and
-+ * returns true if the result is 0, or false for all other
-+ * cases.
-+ */
-+static inline int atomic64_dec_and_test(atomic64_t *v)
-+{
-+	return (atomic64_dec_return(v) == 0);
-+}
-+
-+/**
-+ * atomic64_sub_and_test - subtract value from variable and test result
-+ * @a: integer value to subtract
-+ * @v: pointer to type atomic64_t
-+ *
-+ * Atomically subtracts @a from @v and returns
-+ * true if the result is zero, or false for all
-+ * other cases.
-+ */
-+static inline int atomic64_sub_and_test(s64 a, atomic64_t *v)
-+{
-+	return (atomic64_sub_return(a, v) == 0);
-+}
-+
-+/**
-+ * atomic64_add_negative - add and test if negative
-+ * @a: integer value to add
-+ * @v: pointer to type atomic64_t
-+ *
-+ * Atomically adds @a to @v and returns true
-+ * if the result is negative, or false when
-+ * result is greater than or equal to zero.
-+ */
-+static inline int atomic64_add_negative(s64 a, atomic64_t *v)
-+{
-+	return (atomic64_add_return(a, v) < 0);
-+}
-+
-+
-+static inline s64 atomic64_xchg(atomic64_t *v, s64 n)
-+{
-+	register s64 c;
-+	__asm__ __volatile__ (
-+		"amoswap.d %0, %2, %1"
-+		: "=r" (c), "+A" (v->counter)
-+		: "r" (n));
-+	return c;
-+}
-+
-+static inline s64 atomic64_cmpxchg(atomic64_t *v, s64 o, s64 n)
-+{
-+	return cmpxchg(&(v->counter), o, n);
-+}
-+
-+/*
-+ * atomic64_dec_if_positive - decrement by 1 if old value positive
-+ * @v: pointer of type atomic_t
-+ *
-+ * The function returns the old value of *v minus 1, even if
-+ * the atomic variable, v, was not decremented.
-+ */
-+static inline s64 atomic64_dec_if_positive(atomic64_t *v)
-+{
-+	register s64 prev, rc;
-+	__asm__ __volatile__ (
-+	"0:"
-+		"lr.d %0, %2\n"
-+		"add  %0, %0, -1\n"
-+		"bltz %0, 1f\n"
-+		"sc.w %1, %0, %2\n"
-+		"bnez %1, 0b\n"
-+	"1:"
-+		: "=&r" (prev), "=r" (rc), "+A" (v->counter));
-+	return prev;
-+}
-+
-+/**
-+ * atomic64_add_unless - add unless the number is a given value
-+ * @v: pointer of type atomic64_t
-+ * @a: the amount to add to v...
-+ * @u: ...unless v is equal to u.
-+ *
-+ * Atomically adds @a to @v, so long as it was not @u.
-+ * Returns true if the addition occurred and false otherwise.
-+ */
-+static inline int atomic64_add_unless(atomic64_t *v, s64 a, s64 u)
-+{
-+	register s64 tmp;
-+	register int rc = 1;
-+
-+	__asm__ __volatile__ (
-+	"0:"
-+		"lr.d %0, %2\n"
-+		"beq  %0, %z4, 1f\n"
-+		"add  %0, %0, %3\n"
-+		"sc.d %1, %0, %2\n"
-+		"bnez %1, 0b\n"
-+	"1:"
-+		: "=&r" (tmp), "=&r" (rc), "+A" (v->counter)
-+		: "rI" (a), "rJ" (u));
-+	return !rc;
-+}
-+
-+static inline int atomic64_inc_not_zero(atomic64_t *v)
-+{
-+	return atomic64_add_unless(v, 1, 0);
-+}
-+
-+/**
-+ * atomic64_and - Atomically clear bits in atomic variable
-+ * @mask: Mask of the bits to be retained
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically retains the bits set in @mask from @v
-+ */
-+static inline void atomic64_and(s64 mask, atomic64_t *v)
-+{
-+	__asm__ __volatile__ (
-+		"amoand.d zero, %1, %0"
-+		: "+A" (v->counter)
-+		: "r" (mask));
-+}
-+
-+/**
-+ * atomic64_or - Atomically set bits in atomic variable
-+ * @mask: Mask of the bits to be set
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically sets the bits set in @mask in @v
-+ */
-+static inline void atomic64_or(s64 mask, atomic64_t *v)
-+{
-+	__asm__ __volatile__ (
-+		"amoor.d zero, %1, %0"
-+		: "+A" (v->counter)
-+		: "r" (mask));
-+}
-+
-+/**
-+ * atomic64_xor - Atomically flips bits in atomic variable
-+ * @mask: Mask of the bits to be flipped
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically flips the bits set in @mask in @v
-+ */
-+static inline void atomic64_xor(s64 mask, atomic64_t *v)
-+{
-+	__asm__ __volatile__ (
-+		"amoxor.d zero, %1, %0"
-+		: "+A" (v->counter)
-+		: "r" (mask));
-+}
-+
-+#endif /* CONFIG_GENERIC_ATOMIC64 */
-+
-+#endif /* _ASM_RISCV_ATOMIC64_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/atomic.h linux-4.6.2.riscv/arch/riscv/include/asm/atomic.h
---- linux-4.6.2/arch/riscv/include/asm/atomic.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/atomic.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,276 @@
-+#ifndef _ASM_RISCV_ATOMIC_H
-+#define _ASM_RISCV_ATOMIC_H
-+
-+#ifdef CONFIG_RV_ATOMIC
-+
-+#include <asm/cmpxchg.h>
-+#include <asm/barrier.h>
-+
-+#define ATOMIC_INIT(i)	{ (i) }
-+
-+/**
-+ * atomic_read - read atomic variable
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically reads the value of @v.
-+ */
-+static inline int atomic_read(const atomic_t *v)
-+{
-+	return *((volatile int *)(&(v->counter)));
-+}
-+
-+/**
-+ * atomic_set - set atomic variable
-+ * @v: pointer of type atomic_t
-+ * @i: required value
-+ *
-+ * Atomically sets the value of @v to @i.
-+ */
-+static inline void atomic_set(atomic_t *v, int i)
-+{
-+	v->counter = i;
-+}
-+
-+/**
-+ * atomic_add - add integer to atomic variable
-+ * @i: integer value to add
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically adds @i to @v.
-+ */
-+static inline void atomic_add(int i, atomic_t *v)
-+{
-+	__asm__ __volatile__ (
-+		"amoadd.w zero, %1, %0"
-+		: "+A" (v->counter)
-+		: "r" (i));
-+}
-+
-+/**
-+ * atomic_sub - subtract integer from atomic variable
-+ * @i: integer value to subtract
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically subtracts @i from @v.
-+ */
-+static inline void atomic_sub(int i, atomic_t *v)
-+{
-+	atomic_add(-i, v);
-+}
-+
-+/**
-+ * atomic_add_return - add integer to atomic variable
-+ * @i: integer value to add
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically adds @i to @v and returns the result
-+ */
-+static inline int atomic_add_return(int i, atomic_t *v)
-+{
-+	register int c;
-+	__asm__ __volatile__ (
-+		"amoadd.w %0, %2, %1"
-+		: "=r" (c), "+A" (v->counter)
-+		: "r" (i));
-+	return (c + i);
-+}
-+
-+/**
-+ * atomic_sub_return - subtract integer from atomic variable
-+ * @i: integer value to subtract
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically subtracts @i from @v and returns the result
-+ */
-+static inline int atomic_sub_return(int i, atomic_t *v)
-+{
-+	return atomic_add_return(-i, v);
-+}
-+
-+/**
-+ * atomic_inc - increment atomic variable
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically increments @v by 1.
-+ */
-+static inline void atomic_inc(atomic_t *v)
-+{
-+	atomic_add(1, v);
-+}
-+
-+/**
-+ * atomic_dec - decrement atomic variable
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically decrements @v by 1.
-+ */
-+static inline void atomic_dec(atomic_t *v)
-+{
-+	atomic_add(-1, v);
-+}
-+
-+static inline int atomic_inc_return(atomic_t *v)
-+{
-+	return atomic_add_return(1, v);
-+}
-+
-+static inline int atomic_dec_return(atomic_t *v)
-+{
-+	return atomic_sub_return(1, v);
-+}
-+
-+/**
-+ * atomic_sub_and_test - subtract value from variable and test result
-+ * @i: integer value to subtract
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically subtracts @i from @v and returns
-+ * true if the result is zero, or false for all
-+ * other cases.
-+ */
-+static inline int atomic_sub_and_test(int i, atomic_t *v)
-+{
-+	return (atomic_sub_return(i, v) == 0);
-+}
-+
-+/**
-+ * atomic_inc_and_test - increment and test
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically increments @v by 1
-+ * and returns true if the result is zero, or false for all
-+ * other cases.
-+ */
-+static inline int atomic_inc_and_test(atomic_t *v)
-+{
-+	return (atomic_inc_return(v) == 0);
-+}
-+
-+/**
-+ * atomic_dec_and_test - decrement and test
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically decrements @v by 1 and
-+ * returns true if the result is 0, or false for all other
-+ * cases.
-+ */
-+static inline int atomic_dec_and_test(atomic_t *v)
-+{
-+	return (atomic_dec_return(v) == 0);
-+}
-+
-+/**
-+ * atomic_add_negative - add and test if negative
-+ * @i: integer value to add
-+ * @v: pointer of type atomic_t
-+ * 
-+ * Atomically adds @i to @v and returns true
-+ * if the result is negative, or false when
-+ * result is greater than or equal to zero.
-+ */
-+static inline int atomic_add_negative(int i, atomic_t *v)
-+{
-+	return (atomic_add_return(i, v) < 0);
-+}
-+
-+
-+static inline int atomic_xchg(atomic_t *v, int n)
-+{
-+	register int c;
-+	__asm__ __volatile__ (
-+		"amoswap.w %0, %2, %1"
-+		: "=r" (c), "+A" (v->counter)
-+		: "r" (n));
-+	return c;
-+}
-+
-+static inline int atomic_cmpxchg(atomic_t *v, int o, int n)
-+{
-+	return cmpxchg(&(v->counter), o, n);
-+}
-+
-+/**
-+ * __atomic_add_unless - add unless the number is already a given value
-+ * @v: pointer of type atomic_t
-+ * @a: the amount to add to v...
-+ * @u: ...unless v is equal to u.
-+ *
-+ * Atomically adds @a to @v, so long as @v was not already @u.
-+ * Returns the old value of @v.
-+ */
-+static inline int __atomic_add_unless(atomic_t *v, int a, int u)
-+{
-+	register int prev, rc;
-+	__asm__ __volatile__ (
-+	"0:"
-+		"lr.w %0, %2\n"
-+		"beq  %0, %4, 1f\n"
-+		"add  %1, %0, %3\n"
-+		"sc.w %1, %1, %2\n"
-+		"bnez %1, 0b\n"
-+	"1:"
-+		: "=&r" (prev), "=&r" (rc), "+A" (v->counter)
-+		: "r" (a), "r" (u));
-+	return prev;
-+}
-+
-+/**
-+ * atomic_and - Atomically clear bits in atomic variable
-+ * @mask: Mask of the bits to be retained
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically retains the bits set in @mask from @v
-+ */
-+static inline void atomic_and(unsigned int mask, atomic_t *v)
-+{
-+	__asm__ __volatile__ (
-+		"amoand.w zero, %1, %0"
-+		: "+A" (v->counter)
-+		: "r" (mask));
-+}
-+
-+/**
-+ * atomic_or - Atomically set bits in atomic variable
-+ * @mask: Mask of the bits to be set
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically sets the bits set in @mask in @v
-+ */
-+static inline void atomic_or(unsigned int mask, atomic_t *v)
-+{
-+	__asm__ __volatile__ (
-+		"amoor.w zero, %1, %0"
-+		: "+A" (v->counter)
-+		: "r" (mask));
-+}
-+
-+/**
-+ * atomic_xor - Atomically flips bits in atomic variable
-+ * @mask: Mask of the bits to be flipped
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically flips the bits set in @mask in @v
-+ */
-+static inline void atomic_xor(unsigned int mask, atomic_t *v)
-+{
-+	__asm__ __volatile__ (
-+		"amoxor.w zero, %1, %0"
-+		: "+A" (v->counter)
-+		: "r" (mask));
-+}
-+
-+/* Assume that atomic operations are already serializing */
-+#define smp_mb__before_atomic_dec()	barrier()
-+#define smp_mb__after_atomic_dec()	barrier()
-+#define smp_mb__before_atomic_inc()	barrier()
-+#define smp_mb__after_atomic_inc()	barrier()
-+
-+#else /* !CONFIG_RV_ATOMIC */
-+
-+#include <asm-generic/atomic.h>
-+
-+#endif /* CONFIG_RV_ATOMIC */
-+
-+#include <asm/atomic64.h>
-+
-+#endif /* _ASM_RISCV_ATOMIC_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/barrier.h linux-4.6.2.riscv/arch/riscv/include/asm/barrier.h
---- linux-4.6.2/arch/riscv/include/asm/barrier.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/barrier.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,14 @@
-+#ifndef _ASM_RISCV_BARRIER_H
-+#define _ASM_RISCV_BARRIER_H
-+
-+#ifndef __ASSEMBLY__
-+
-+#define nop()	__asm__ __volatile__ ("nop")
-+
-+#define mb()	__asm__ __volatile__ ("fence" : : : "memory")
-+
-+#include <asm-generic/barrier.h>
-+
-+#endif /* __ASSEMBLY__ */
-+
-+#endif /* _ASM_RISCV_BARRIER_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/bitops.h linux-4.6.2.riscv/arch/riscv/include/asm/bitops.h
---- linux-4.6.2/arch/riscv/include/asm/bitops.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/bitops.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,271 @@
-+#ifndef _ASM_RISCV_BITOPS_H
-+#define _ASM_RISCV_BITOPS_H
-+
-+#ifndef _LINUX_BITOPS_H
-+#error "Only <linux/bitops.h> can be included directly"
-+#endif /* _LINUX_BITOPS_H */
-+
-+#ifdef __KERNEL__
-+
-+#include <linux/compiler.h>
-+#include <linux/irqflags.h>
-+#include <asm/barrier.h>
-+#include <asm/bitsperlong.h>
-+
-+#ifdef CONFIG_RV_ATOMIC
-+
-+#ifndef smp_mb__before_clear_bit
-+#define smp_mb__before_clear_bit()  smp_mb()
-+#define smp_mb__after_clear_bit()   smp_mb()
-+#endif /* smp_mb__before_clear_bit */
-+
-+/**
-+ * __ffs - find first bit in word.
-+ * @word: The word to search
-+ *
-+ * Undefined if no bit exists, so code should check against 0 first.
-+ */
-+/*
-+static __always_inline unsigned long __ffs(unsigned long word)
-+{
-+	return 0;
-+}
-+*/
-+#include <asm-generic/bitops/__ffs.h>
-+
-+#include <asm-generic/bitops/ffz.h>
-+
-+/**
-+ * fls - find last (most-significant) bit set
-+ * @x: the word to search
-+ *
-+ * This is defined the same way as ffs.
-+ * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
-+ */
-+/*
-+static __always_inline int fls(int x)
-+{
-+	return 0;
-+}
-+*/
-+#include <asm-generic/bitops/fls.h>
-+
-+/**
-+ * __fls - find last (most-significant) set bit in a long word
-+ * @word: the word to search
-+ *
-+ * Undefined if no set bit exists, so code should check against 0 first.
-+ */
-+/*
-+static __always_inline unsigned long __fls(unsigned long word)
-+{
-+	return 0;
-+}
-+*/
-+#include <asm-generic/bitops/__fls.h>
-+
-+#include <asm-generic/bitops/fls64.h>
-+#include <asm-generic/bitops/find.h>
-+#include <asm-generic/bitops/sched.h>
-+
-+/**
-+ * ffs - find first bit set
-+ * @x: the word to search
-+ *
-+ * This is defined the same way as
-+ * the libc and compiler builtin ffs routines, therefore
-+ * differs in spirit from the above ffz (man ffs).
-+ */
-+/*
-+static __always_inline int ffs(int x)
-+{
-+	return 0;
-+}
-+*/
-+#include <asm-generic/bitops/ffs.h>
-+
-+#include <asm-generic/bitops/hweight.h>
-+
-+#if (BITS_PER_LONG == 64)
-+#define __AMO(op)	"amo" #op ".d"
-+#elif (BITS_PER_LONG == 32)
-+#define __AMO(op)	"amo" #op ".w"
-+#else
-+#error "Unexpected BITS_PER_LONG"
-+#endif
-+
-+#define __test_and_op_bit(op, mod, nr, addr)			\
-+({								\
-+	unsigned long __res, __mask;				\
-+	__mask = BIT_MASK(nr);					\
-+	__asm__ __volatile__ (					\
-+		__AMO(op) " %0, %2, %1"				\
-+		: "=r" (__res), "+A" (addr[BIT_WORD(nr)])	\
-+		: "r" (mod(__mask)));				\
-+	((__res & __mask) != 0);				\
-+})
-+
-+#define __op_bit(op, mod, nr, addr)				\
-+	__asm__ __volatile__ (					\
-+		__AMO(op) " zero, %1, %0"			\
-+		: "+A" (addr[BIT_WORD(nr)])			\
-+		: "r" (mod(BIT_MASK(nr))))
-+
-+/* Bitmask modifiers */
-+#define __NOP(x)	(x)
-+#define __NOT(x)	(~(x))
-+
-+/**
-+ * test_and_set_bit - Set a bit and return its old value
-+ * @nr: Bit to set
-+ * @addr: Address to count from
-+ *
-+ * This operation is atomic and cannot be reordered.
-+ * It may be reordered on other architectures than x86.
-+ * It also implies a memory barrier.
-+ */
-+static inline int test_and_set_bit(int nr, volatile unsigned long *addr)
-+{
-+	return __test_and_op_bit(or, __NOP, nr, addr);
-+}
-+
-+/**
-+ * test_and_clear_bit - Clear a bit and return its old value
-+ * @nr: Bit to clear
-+ * @addr: Address to count from
-+ *
-+ * This operation is atomic and cannot be reordered.
-+ * It can be reordered on other architectures other than x86.
-+ * It also implies a memory barrier.
-+ */
-+static inline int test_and_clear_bit(int nr, volatile unsigned long *addr)
-+{
-+	return __test_and_op_bit(and, __NOT, nr, addr);
-+}
-+
-+/**
-+ * test_and_change_bit - Change a bit and return its old value
-+ * @nr: Bit to change
-+ * @addr: Address to count from
-+ *
-+ * This operation is atomic and cannot be reordered.
-+ * It also implies a memory barrier.
-+ */
-+static inline int test_and_change_bit(int nr, volatile unsigned long *addr)
-+{
-+	return __test_and_op_bit(xor, __NOP, nr, addr);
-+}
-+
-+/**
-+ * set_bit - Atomically set a bit in memory
-+ * @nr: the bit to set
-+ * @addr: the address to start counting from
-+ *
-+ * This function is atomic and may not be reordered.  See __set_bit()
-+ * if you do not require the atomic guarantees.
-+ *
-+ * Note: there are no guarantees that this function will not be reordered
-+ * on non x86 architectures, so if you are writing portable code,
-+ * make sure not to rely on its reordering guarantees.
-+ *
-+ * Note that @nr may be almost arbitrarily large; this function is not
-+ * restricted to acting on a single-word quantity.
-+ */
-+static inline void set_bit(int nr, volatile unsigned long *addr)
-+{
-+	__op_bit(or, __NOP, nr, addr);
-+}
-+
-+/**
-+ * clear_bit - Clears a bit in memory
-+ * @nr: Bit to clear
-+ * @addr: Address to start counting from
-+ *
-+ * clear_bit() is atomic and may not be reordered.  However, it does
-+ * not contain a memory barrier, so if it is used for locking purposes,
-+ * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit()
-+ * in order to ensure changes are visible on other processors.
-+ */
-+static inline void clear_bit(int nr, volatile unsigned long *addr)
-+{
-+	__op_bit(and, __NOT, nr, addr);
-+}
-+
-+/**
-+ * change_bit - Toggle a bit in memory
-+ * @nr: Bit to change
-+ * @addr: Address to start counting from
-+ *
-+ * change_bit() is atomic and may not be reordered. It may be
-+ * reordered on other architectures than x86.
-+ * Note that @nr may be almost arbitrarily large; this function is not
-+ * restricted to acting on a single-word quantity.
-+ */
-+static inline void change_bit(int nr, volatile unsigned long *addr)
-+{
-+	__op_bit(xor, __NOP, nr, addr);
-+}
-+
-+/**
-+ * test_and_set_bit_lock - Set a bit and return its old value, for lock
-+ * @nr: Bit to set
-+ * @addr: Address to count from
-+ *
-+ * This operation is atomic and provides acquire barrier semantics.
-+ * It can be used to implement bit locks.
-+ */
-+static inline int test_and_set_bit_lock(
-+	unsigned long nr, volatile unsigned long *addr)
-+{
-+	return test_and_set_bit(nr, addr);
-+}
-+
-+/**
-+ * clear_bit_unlock - Clear a bit in memory, for unlock
-+ * @nr: the bit to set
-+ * @addr: the address to start counting from
-+ *
-+ * This operation is atomic and provides release barrier semantics.
-+ */
-+static inline void clear_bit_unlock(
-+	unsigned long nr, volatile unsigned long *addr)
-+{
-+	clear_bit(nr, addr);
-+}
-+
-+/**
-+ * __clear_bit_unlock - Clear a bit in memory, for unlock
-+ * @nr: the bit to set
-+ * @addr: the address to start counting from
-+ *
-+ * This operation is like clear_bit_unlock, however it is not atomic.
-+ * It does provide release barrier semantics so it can be used to unlock
-+ * a bit lock, however it would only be used if no other CPU can modify
-+ * any bits in the memory until the lock is released (a good example is
-+ * if the bit lock itself protects access to the other bits in the word).
-+ */
-+static inline void __clear_bit_unlock(
-+	unsigned long nr, volatile unsigned long *addr)
-+{
-+	clear_bit(nr, addr);
-+}
-+
-+#undef __test_and_op_bit
-+#undef __op_bit
-+#undef __NOP
-+#undef __NOT
-+#undef __AMO
-+
-+#include <asm-generic/bitops/non-atomic.h>
-+#include <asm-generic/bitops/le.h>
-+#include <asm-generic/bitops/ext2-atomic.h>
-+
-+#else /* !CONFIG_RV_ATOMIC */
-+
-+#include <asm-generic/bitops.h>
-+
-+#endif /* CONFIG_RV_ATOMIC */
-+
-+#endif /* __KERNEL__ */
-+
-+#endif /* _ASM_RISCV_BITOPS_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/bug.h linux-4.6.2.riscv/arch/riscv/include/asm/bug.h
---- linux-4.6.2/arch/riscv/include/asm/bug.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/bug.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,67 @@
-+#ifndef _ASM_RISCV_BUG_H
-+#define _ASM_RISCV_BUG_H
-+
-+#include <linux/compiler.h>
-+#include <linux/const.h>
-+#include <linux/types.h>
-+
-+#include <asm/asm.h>
-+
-+#ifdef CONFIG_GENERIC_BUG
-+#define __BUG_INSN	_AC(0x00100073,UL) /* sbreak */
-+
-+#ifndef __ASSEMBLY__
-+typedef u32 bug_insn_t;
-+
-+#ifdef CONFIG_GENERIC_BUG_RELATIVE_POINTERS
-+#define __BUG_ENTRY_ADDR	INT " 1b - 2b"
-+#define __BUG_ENTRY_FILE	INT " %0 - 2b"
-+#else
-+#define __BUG_ENTRY_ADDR	PTR " 1b"
-+#define __BUG_ENTRY_FILE	PTR " %0"
-+#endif
-+
-+#ifdef CONFIG_DEBUG_BUGVERBOSE
-+#define __BUG_ENTRY			\
-+	__BUG_ENTRY_ADDR "\n\t"		\
-+	__BUG_ENTRY_FILE "\n\t"		\
-+	SHORT " %1"
-+#else
-+#define __BUG_ENTRY			\
-+	__BUG_ENTRY_ADDR
-+#endif
-+
-+#define BUG()							\
-+do {								\
-+	__asm__ __volatile__ (					\
-+		"1:\n\t"					\
-+			"sbreak\n"				\
-+			".pushsection __bug_table,\"a\"\n\t"	\
-+		"2:\n\t"					\
-+			__BUG_ENTRY "\n\t"			\
-+			".org 2b + %2\n\t"			\
-+			".popsection"				\
-+		:						\
-+		: "i" (__FILE__), "i" (__LINE__),		\
-+		  "i" (sizeof(struct bug_entry)));		\
-+	unreachable();						\
-+} while (0)
-+
-+#define HAVE_ARCH_BUG
-+#endif /* !__ASSEMBLY__ */
-+#endif /* CONFIG_GENERIC_BUG */
-+
-+#include <asm-generic/bug.h>
-+
-+#ifndef __ASSEMBLY__
-+
-+struct pt_regs;
-+struct task_struct;
-+
-+extern void die(struct pt_regs *regs, const char *str);
-+extern void do_trap(struct pt_regs *regs, int signo, int code,
-+	unsigned long addr, struct task_struct *tsk);
-+
-+#endif /* !__ASSEMBLY__ */
-+
-+#endif /* _ASM_RISCV_BUG_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/cacheflush.h linux-4.6.2.riscv/arch/riscv/include/asm/cacheflush.h
---- linux-4.6.2/arch/riscv/include/asm/cacheflush.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/cacheflush.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,26 @@
-+#ifndef _ASM_RISCV_CACHEFLUSH_H
-+#define _ASM_RISCV_CACHEFLUSH_H
-+
-+#include <asm-generic/cacheflush.h>
-+
-+#undef flush_icache_range
-+#undef flush_icache_user_range
-+
-+static inline void local_flush_icache_all(void)
-+{
-+	asm volatile ("fence.i" ::: "memory");
-+}
-+
-+#ifndef CONFIG_SMP
-+
-+#define flush_icache_range(start, end) local_flush_icache_all()
-+#define flush_icache_user_range(vma, pg, addr, len) local_flush_icache_all()
-+
-+#else /* CONFIG_SMP */
-+
-+#define flush_icache_range(start, end) sbi_remote_fence_i(0)
-+#define flush_icache_user_range(vma, pg, addr, len) sbi_remote_fence_i(0)
-+
-+#endif /* CONFIG_SMP */
-+
-+#endif /* _ASM_RISCV_CACHEFLUSH_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/cache.h linux-4.6.2.riscv/arch/riscv/include/asm/cache.h
---- linux-4.6.2/arch/riscv/include/asm/cache.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/cache.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,12 @@
-+#ifndef _ASM_RISCV_CACHE_H
-+#define _ASM_RISCV_CACHE_H
-+
-+#if defined(CONFIG_CPU_RV_ROCKET)
-+#define L1_CACHE_SHIFT		6
-+#else
-+#define L1_CACHE_SHIFT		5
-+#endif
-+
-+#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
-+
-+#endif /* _ASM_RISCV_CACHE_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/cmpxchg.h linux-4.6.2.riscv/arch/riscv/include/asm/cmpxchg.h
---- linux-4.6.2/arch/riscv/include/asm/cmpxchg.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/cmpxchg.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,111 @@
-+#ifndef _ASM_RISCV_CMPXCHG_H
-+#define _ASM_RISCV_CMPXCHG_H
-+
-+#include <linux/bug.h>
-+
-+#ifdef CONFIG_RV_ATOMIC
-+
-+#include <asm/barrier.h>
-+
-+#define __xchg(new, ptr, size)					\
-+({								\
-+	__typeof__(ptr) __ptr = (ptr);				\
-+	__typeof__(new) __new = (new);				\
-+	__typeof__(*(ptr)) __ret;				\
-+	switch (size) {						\
-+	case 4:							\
-+		__asm__ __volatile__ (				\
-+			"amoswap.w %0, %2, %1"			\
-+			: "=r" (__ret), "+A" (*__ptr)		\
-+			: "r" (__new));				\
-+		break;						\
-+	case 8:							\
-+		__asm__ __volatile__ (				\
-+			"amoswap.d %0, %2, %1"			\
-+			: "=r" (__ret), "+A" (*__ptr)		\
-+			: "r" (__new));				\
-+		break;						\
-+	default:						\
-+		BUILD_BUG();					\
-+	}							\
-+	__ret;							\
-+})
-+
-+#define xchg(ptr, x)    (__xchg((x), (ptr), sizeof(*(ptr))))
-+
-+
-+/*
-+ * Atomic compare and exchange.  Compare OLD with MEM, if identical,
-+ * store NEW in MEM.  Return the initial value in MEM.  Success is
-+ * indicated by comparing RETURN with OLD.
-+ */
-+#define __cmpxchg(ptr, old, new, size)					\
-+({									\
-+	__typeof__(ptr) __ptr = (ptr);					\
-+	__typeof__(old) __old = (old);					\
-+	__typeof__(new) __new = (new);					\
-+	__typeof__(*(ptr)) __ret;					\
-+	register unsigned int __rc;					\
-+	switch (size) {							\
-+	case 4:								\
-+		__asm__ __volatile__ (					\
-+		"0:"							\
-+			"lr.w %0, %2\n"					\
-+			"bne  %0, %z3, 1f\n"				\
-+			"sc.w %1, %z4, %2\n"				\
-+			"bnez %1, 0b\n"					\
-+		"1:"							\
-+			: "=&r" (__ret), "=&r" (__rc), "+A" (*__ptr)	\
-+			: "rJ" (__old), "rJ" (__new));			\
-+		break;							\
-+	case 8:								\
-+		__asm__ __volatile__ (					\
-+		"0:"							\
-+			"lr.d %0, %2\n"					\
-+			"bne  %0, %z3, 1f\n"				\
-+			"sc.d %1, %z4, %2\n"				\
-+			"bnez %1, 0b\n"					\
-+		"1:"							\
-+			: "=&r" (__ret), "=&r" (__rc), "+A" (*__ptr)	\
-+			: "rJ" (__old), "rJ" (__new));			\
-+		break;							\
-+	default:							\
-+		BUILD_BUG();						\
-+	}								\
-+	__ret;								\
-+})
-+
-+#define __cmpxchg_mb(ptr, old, new, size) 			\
-+({								\
-+	__typeof__(*(ptr)) __ret;				\
-+	smp_mb();						\
-+	__ret = __cmpxchg((ptr), (old), (new), (size));		\
-+	smp_mb();						\
-+	__ret;							\
-+})
-+
-+#define cmpxchg(ptr, o, n) \
-+	(__cmpxchg_mb((ptr), (o), (n), sizeof(*(ptr))))
-+
-+#define cmpxchg_local(ptr, o, n) \
-+	(__cmpxchg((ptr), (o), (n), sizeof(*(ptr))))
-+
-+#define cmpxchg64(ptr, o, n)			\
-+({						\
-+	BUILD_BUG_ON(sizeof(*(ptr)) != 8);	\
-+	cmpxchg((ptr), (o), (n));		\
-+})
-+
-+#define cmpxchg64_local(ptr, o, n)		\
-+({						\
-+	BUILD_BUG_ON(sizeof(*(ptr)) != 8);	\
-+	cmpxchg_local((ptr), (o), (n));		\
-+})
-+
-+#else /* !CONFIG_RV_ATOMIC */
-+
-+#include <asm-generic/cmpxchg.h>
-+
-+#endif /* CONFIG_RV_ATOMIC */
-+
-+#endif /* _ASM_RISCV_CMPXCHG_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/csr.h linux-4.6.2.riscv/arch/riscv/include/asm/csr.h
---- linux-4.6.2/arch/riscv/include/asm/csr.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/csr.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,137 @@
-+#ifndef _ASM_RISCV_CSR_H
-+#define _ASM_RISCV_CSR_H
-+
-+#include <linux/const.h>
-+
-+/* Status register flags */
-+#define SR_IE   _AC(0x00000002,UL) /* Interrupt Enable */
-+#define SR_PIE  _AC(0x00000020,UL) /* Previous IE */
-+#define SR_PS   _AC(0x00000100,UL) /* Previously Supervisor */
-+#define SR_PUM  _AC(0x00040000,UL) /* Protect User Memory */
-+
-+#define SR_FS           _AC(0x00006000,UL) /* Floating-point Status */
-+#define SR_FS_OFF       _AC(0x00000000,UL)
-+#define SR_FS_INITIAL   _AC(0x00002000,UL)
-+#define SR_FS_CLEAN     _AC(0x00004000,UL)
-+#define SR_FS_DIRTY     _AC(0x00006000,UL)
-+
-+#define SR_XS           _AC(0x00018000,UL) /* Extension Status */
-+#define SR_XS_OFF       _AC(0x00000000,UL)
-+#define SR_XS_INITIAL   _AC(0x00008000,UL)
-+#define SR_XS_CLEAN     _AC(0x00010000,UL)
-+#define SR_XS_DIRTY     _AC(0x00018000,UL)
-+
-+#ifndef CONFIG_64BIT
-+#define SR_SD   _AC(0x80000000,UL) /* FS/XS dirty */
-+#else
-+#define SR_SD   _AC(0x8000000000000000,UL) /* FS/XS dirty */
-+#endif
-+
-+/* Interrupt Enable and Interrupt Pending flags */
-+#define SIE_SSIE _AC(0x00000002,UL) /* Software Interrupt Enable */
-+#define SIE_STIE _AC(0x00000020,UL) /* Timer Interrupt Enable */
-+
-+#define EXC_INST_MISALIGNED     0
-+#define EXC_INST_ACCESS         1
-+#define EXC_BREAKPOINT          3
-+#define EXC_LOAD_ACCESS         5
-+#define EXC_STORE_ACCESS        7
-+#define EXC_SYSCALL             8
-+
-+#ifndef __ASSEMBLY__
-+
-+#define CSR_ZIMM(val) \
-+	(__builtin_constant_p(val) && ((unsigned long)(val) < 0x20))
-+
-+#define csr_swap(csr,val)					\
-+({								\
-+	unsigned long __v = (unsigned long)(val);		\
-+	if (CSR_ZIMM(__v)) { 					\
-+		__asm__ __volatile__ (				\
-+			"csrrw %0, " #csr ", %1"		\
-+			: "=r" (__v) : "i" (__v));		\
-+	} else {						\
-+		__asm__ __volatile__ (				\
-+			"csrrw %0, " #csr ", %1"		\
-+			: "=r" (__v) : "r" (__v));		\
-+	}							\
-+	__v;							\
-+})
-+
-+#define csr_read(csr)						\
-+({								\
-+	register unsigned long __v;				\
-+	__asm__ __volatile__ (					\
-+		"csrr %0, " #csr : "=r" (__v));			\
-+	__v;							\
-+})
-+
-+#define csr_write(csr,val)					\
-+({								\
-+	unsigned long __v = (unsigned long)(val);		\
-+	if (CSR_ZIMM(__v)) {					\
-+		__asm__ __volatile__ (				\
-+			"csrw " #csr ", %0" : : "i" (__v));	\
-+	} else {						\
-+		__asm__ __volatile__ (				\
-+			"csrw " #csr ", %0" : : "r" (__v));	\
-+	}							\
-+})
-+
-+#define csr_read_set(csr,val)					\
-+({								\
-+	unsigned long __v = (unsigned long)(val);		\
-+	if (CSR_ZIMM(val)) {					\
-+		__asm__ __volatile__ (				\
-+			"csrrs %0, " #csr ", %1"		\
-+			: "=r" (__v) : "i" (__v));		\
-+	} else {						\
-+		__asm__ __volatile__ (				\
-+			"csrrs %0, " #csr ", %1"		\
-+			: "=r" (__v) : "r" (__v));		\
-+	}							\
-+	__v;							\
-+})
-+
-+#define csr_set(csr,val)					\
-+({								\
-+	unsigned long __v = (unsigned long)(val);		\
-+	if (CSR_ZIMM(__v)) {					\
-+		__asm__ __volatile__ (				\
-+			"csrs " #csr ", %0" : : "i" (__v));	\
-+	} else {						\
-+		__asm__ __volatile__ (				\
-+			"csrs " #csr ", %0" : : "r" (__v));	\
-+	}							\
-+})
-+
-+#define csr_read_clear(csr,val)					\
-+({								\
-+	unsigned long __v = (unsigned long)(val);		\
-+	if (CSR_ZIMM(__v)) {					\
-+		__asm__ __volatile__ (				\
-+			"csrrc %0, " #csr ", %1"		\
-+			: "=r" (__v) : "i" (__v));		\
-+	} else {						\
-+		__asm__ __volatile__ (				\
-+			"csrrc %0, " #csr ", %1"		\
-+			: "=r" (__v) : "r" (__v));		\
-+	}							\
-+	__v;							\
-+})
-+
-+#define csr_clear(csr,val)					\
-+({								\
-+	unsigned long __v = (unsigned long)(val);		\
-+	if (CSR_ZIMM(__v)) {					\
-+		__asm__ __volatile__ (				\
-+			"csrc " #csr ", %0" : : "i" (__v));	\
-+	} else {						\
-+		__asm__ __volatile__ (				\
-+			"csrc " #csr ", %0" : : "r" (__v));	\
-+	}							\
-+})
-+
-+#endif /* __ASSEMBLY__ */
-+
-+#endif /* _ASM_RISCV_CSR_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/current.h linux-4.6.2.riscv/arch/riscv/include/asm/current.h
---- linux-4.6.2/arch/riscv/include/asm/current.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/current.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,16 @@
-+#ifndef _ASM_RISCV_CURRENT_H
-+#define _ASM_RISCV_CURRENT_H
-+
-+#include <asm/csr.h>
-+
-+struct task_struct;
-+
-+static inline struct task_struct *get_current(void)
-+{
-+	register struct task_struct * tp asm("tp");
-+	return tp;
-+}
-+
-+#define current (get_current())
-+
-+#endif /* _ASM_RISCV_CURRENT_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/delay.h linux-4.6.2.riscv/arch/riscv/include/asm/delay.h
---- linux-4.6.2/arch/riscv/include/asm/delay.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/delay.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,14 @@
-+#ifndef _ASM_RISCV_DELAY_H
-+#define _ASM_RISCV_DELAY_H
-+
-+extern unsigned long timebase;
-+
-+#define udelay udelay
-+extern void udelay(unsigned long usecs);
-+
-+#define ndelay ndelay
-+extern void ndelay(unsigned long nsecs);
-+
-+extern void __delay(unsigned long cycles);
-+
-+#endif /* _ASM_RISCV_DELAY_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/device.h linux-4.6.2.riscv/arch/riscv/include/asm/device.h
---- linux-4.6.2/arch/riscv/include/asm/device.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/device.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,13 @@
-+#ifndef _ASM_RISCV_DEVICE_H
-+#define _ASM_RISCV_DEVICE_H
-+
-+#include <linux/sysfs.h>
-+
-+struct dev_archdata {
-+	struct dma_map_ops *dma_ops;
-+};
-+
-+struct pdev_archdata {
-+};
-+
-+#endif /* _ASM_RISCV_DEVICE_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/dma-mapping.h linux-4.6.2.riscv/arch/riscv/include/asm/dma-mapping.h
---- linux-4.6.2/arch/riscv/include/asm/dma-mapping.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/dma-mapping.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,63 @@
-+/*
-+ * Copyright (C) 2003-2004 Hewlett-Packard Co
-+ *	David Mosberger-Tang <davidm@hpl.hp.com>
-+ * Copyright (C) 2012 ARM Ltd.
-+ * Copyright (C) 2016 SiFive, Inc.
-+ *
-+ * 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.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
-+ */
-+#ifndef __ASM_RISCV_DMA_MAPPING_H
-+#define __ASM_RISCV_DMA_MAPPING_H
-+
-+#ifdef __KERNEL__
-+
-+/* Use ops->dma_mapping_error (if it exists) or assume success */
-+// #undef DMA_ERROR_CODE
-+
-+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
-+{
-+	if (unlikely(dev->archdata.dma_ops))
-+		return dev->archdata.dma_ops;
-+	else
-+		return &dma_noop_ops;
-+}
-+
-+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-+{
-+	if (!dev->dma_mask)
-+		return false;
-+
-+	return addr + size - 1 <= *dev->dma_mask;
-+}
-+
-+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-+{
-+	return (dma_addr_t)paddr;
-+}
-+
-+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
-+{
-+	return (phys_addr_t)dev_addr;
-+}
-+
-+static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction dir)
-+{
-+	/*
-+	 * RISC-V is cache-coherent, so this is mostly a no-op.  However, we do need to
-+	 * ensure that dma_cache_sync() enforces order, hence the mb().
-+	 */
-+	mb();
-+}
-+
-+#endif	/* __KERNEL__ */
-+#endif	/* __ASM_RISCV_DMA_MAPPING_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/elf.h linux-4.6.2.riscv/arch/riscv/include/asm/elf.h
---- linux-4.6.2/arch/riscv/include/asm/elf.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/elf.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,72 @@
-+#ifndef _ASM_RISCV_ELF_H
-+#define _ASM_RISCV_ELF_H
-+
-+#include <uapi/asm/elf.h>
-+#include <asm/auxvec.h>
-+#include <asm/byteorder.h>
-+
-+/* TODO: Move definition into include/uapi/linux/elf-em.h */
-+#define EM_RISCV	0xF3
-+
-+/*
-+ * These are used to set parameters in the core dumps.
-+ */
-+#define ELF_ARCH	EM_RISCV
-+
-+#ifdef CONFIG_64BIT
-+#define ELF_CLASS	ELFCLASS64
-+#else
-+#define ELF_CLASS	ELFCLASS32
-+#endif
-+
-+#if defined(__LITTLE_ENDIAN)
-+#define ELF_DATA	ELFDATA2LSB
-+#elif defined(__BIG_ENDIAN)
-+#define ELF_DATA	ELFDATA2MSB
-+#else
-+#error "Unknown endianness"
-+#endif
-+
-+/*
-+ * This is used to ensure we don't load something for the wrong architecture.
-+ */
-+#define elf_check_arch(x) ((x)->e_machine == EM_RISCV)
-+
-+#define CORE_DUMP_USE_REGSET
-+#define ELF_EXEC_PAGESIZE	(PAGE_SIZE)
-+
-+/*
-+ * This is the location that an ET_DYN program is loaded if exec'ed.  Typical
-+ * use of this is to invoke "./ld.so someprog" to test out a new version of
-+ * the loader.  We need to make sure that it is out of the way of the program
-+ * that it will "exec", and that there is sufficient room for the brk.
-+ */
-+#define ELF_ET_DYN_BASE		((TASK_SIZE / 3) * 2)
-+
-+/*
-+ * This yields a mask that user programs can use to figure out what
-+ * instruction set this CPU supports.  This could be done in user space,
-+ * but it's not easy, and we've already done it here.
-+ */
-+#define ELF_HWCAP	(0)
-+
-+/*
-+ * This yields a string that ld.so will use to load implementation
-+ * specific libraries for optimization.  This is more specific in
-+ * intent than poking at uname or /proc/cpuinfo.
-+ */
-+#define ELF_PLATFORM	(NULL)
-+
-+#define ARCH_DLINFO						\
-+do {								\
-+	NEW_AUX_ENT(AT_SYSINFO_EHDR,				\
-+		(elf_addr_t)current->mm->context.vdso);		\
-+} while (0)
-+
-+
-+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
-+struct linux_binprm;
-+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
-+	int uses_interp);
-+
-+#endif /* _ASM_RISCV_ELF_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/io.h linux-4.6.2.riscv/arch/riscv/include/asm/io.h
---- linux-4.6.2/arch/riscv/include/asm/io.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/io.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,63 @@
-+#ifndef _ASM_RISCV_IO_H
-+#define _ASM_RISCV_IO_H
-+
-+#include <asm-generic/io.h>
-+
-+#ifdef __KERNEL__
-+
-+#ifdef CONFIG_MMU
-+
-+extern void __iomem *ioremap(phys_addr_t offset, unsigned long size);
-+
-+/*
-+ * ioremap_nocache     -   map bus memory into CPU space
-+ * @offset:    bus address of the memory
-+ * @size:      size of the resource to map
-+ *
-+ * ioremap_nocache performs a platform specific sequence of operations to
-+ * make bus memory CPU accessible via the readb/readw/readl/writeb/
-+ * writew/writel functions and the other mmio helpers. The returned
-+ * address is not guaranteed to be usable directly as a virtual
-+ * address.
-+ *
-+ * This version of ioremap ensures that the memory is marked uncachable
-+ * on the CPU as well as honouring existing caching rules from things like
-+ * the PCI bus. Note that there are other caches and buffers on many
-+ * busses. In particular driver authors should read up on PCI writes.
-+ *
-+ * It's useful if some control registers are in such an area and
-+ * write combining or read caching is not desirable.
-+ *
-+ * Must be freed with iounmap.
-+ */
-+static inline void __iomem *ioremap_nocache(
-+	phys_addr_t offset, unsigned long size)
-+{
-+	return ioremap(offset, size);
-+}
-+
-+/**
-+ * ioremap_wc	-	map memory into CPU space write combined
-+ * @offset:	bus address of the memory
-+ * @size:	size of the resource to map
-+ *
-+ * This version of ioremap ensures that the memory is marked write combining.
-+ * Write combining allows faster writes to some hardware devices.
-+ *
-+ * Must be freed with iounmap.
-+ */
-+static inline void __iomem *ioremap_wc(
-+	phys_addr_t offset, unsigned long size)
-+{
-+	return ioremap(offset, size);
-+}
-+
-+#define ioremap_wt ioremap_nocache
-+
-+extern void iounmap(void __iomem *addr);
-+
-+#endif /* CONFIG_MMU */
-+
-+#endif /* __KERNEL__ */
-+
-+#endif /* _ASM_RISCV_IO_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/irqflags.h linux-4.6.2.riscv/arch/riscv/include/asm/irqflags.h
---- linux-4.6.2/arch/riscv/include/asm/irqflags.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/irqflags.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,49 @@
-+#ifndef _ASM_RISCV_IRQFLAGS_H
-+#define _ASM_RISCV_IRQFLAGS_H
-+
-+#include <asm/processor.h>
-+#include <asm/csr.h>
-+
-+/* read interrupt enabled status */
-+static inline unsigned long arch_local_save_flags(void)
-+{
-+	return csr_read(sstatus);
-+}
-+
-+/* unconditionally enable interrupts */
-+static inline void arch_local_irq_enable(void)
-+{
-+	csr_set(sstatus, SR_IE);
-+}
-+
-+/* unconditionally disable interrupts */
-+static inline void arch_local_irq_disable(void)
-+{
-+	csr_clear(sstatus, SR_IE);
-+}
-+
-+/* get status and disable interrupts */
-+static inline unsigned long arch_local_irq_save(void)
-+{
-+	return csr_read_clear(sstatus, SR_IE);
-+}
-+
-+/* test flags */
-+static inline int arch_irqs_disabled_flags(unsigned long flags)
-+{
-+	return !(flags & SR_IE);
-+}
-+
-+/* test hardware interrupt enable bit */
-+static inline int arch_irqs_disabled(void)
-+{
-+	return arch_irqs_disabled_flags(arch_local_save_flags());
-+}
-+
-+/* set interrupt enabled status */
-+static inline void arch_local_irq_restore(unsigned long flags)
-+{
-+	csr_set(sstatus, flags & SR_IE);
-+}
-+
-+#endif /* _ASM_RISCV_IRQFLAGS_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/irq.h linux-4.6.2.riscv/arch/riscv/include/asm/irq.h
---- linux-4.6.2/arch/riscv/include/asm/irq.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/irq.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,14 @@
-+#ifndef _ASM_RISCV_IRQ_H
-+#define _ASM_RISCV_IRQ_H
-+
-+#define NR_IRQS         0
-+
-+#define INTERRUPT_CAUSE_SOFTWARE    1
-+#define INTERRUPT_CAUSE_TIMER       5
-+#define INTERRUPT_CAUSE_EXTERNAL    9
-+
-+void riscv_timer_interrupt(void);
-+
-+#include <asm-generic/irq.h>
-+
-+#endif /* _ASM_RISCV_IRQ_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/Kbuild linux-4.6.2.riscv/arch/riscv/include/asm/Kbuild
---- linux-4.6.2/arch/riscv/include/asm/Kbuild	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/Kbuild	2017-03-04 02:48:34.162887952 +0100
-@@ -0,0 +1,59 @@
-+generic-y += bugs.h
-+generic-y += cacheflush.h
-+generic-y += checksum.h
-+generic-y += clkdev.h
-+generic-y += cputime.h
-+generic-y += div64.h
-+generic-y += dma.h
-+generic-y += emergency-restart.h
-+generic-y += errno.h
-+generic-y += exec.h
-+generic-y += fb.h
-+generic-y += fcntl.h
-+generic-y += ftrace.h
-+generic-y += futex.h
-+generic-y += hardirq.h
-+generic-y += hash.h
-+generic-y += hw_irq.h
-+generic-y += ioctl.h
-+generic-y += ioctls.h
-+generic-y += ipcbuf.h
-+generic-y += irq_regs.h
-+generic-y += irq_work.h
-+generic-y += kdebug.h
-+generic-y += kmap_types.h
-+generic-y += kvm_para.h
-+generic-y += local.h
-+generic-y += mm-arch-hooks.h
-+generic-y += mman.h
-+generic-y += module.h
-+generic-y += msgbuf.h
-+generic-y += mutex.h
-+generic-y += param.h
-+generic-y += percpu.h
-+generic-y += poll.h
-+generic-y += posix_types.h
-+generic-y += preempt.h
-+generic-y += resource.h
-+generic-y += scatterlist.h
-+generic-y += sections.h
-+generic-y += sembuf.h
-+generic-y += shmbuf.h
-+generic-y += shmparam.h
-+generic-y += signal.h
-+generic-y += socket.h
-+generic-y += sockios.h
-+generic-y += stat.h
-+generic-y += statfs.h
-+generic-y += swab.h
-+generic-y += termbits.h
-+generic-y += termios.h
-+generic-y += topology.h
-+generic-y += trace_clock.h
-+generic-y += types.h
-+generic-y += ucontext.h
-+generic-y += unaligned.h
-+generic-y += user.h
-+generic-y += vga.h
-+generic-y += vmlinux.lds.h
-+generic-y += xor.h
-diff -Nur linux-4.6.2/arch/riscv/include/asm/linkage.h linux-4.6.2.riscv/arch/riscv/include/asm/linkage.h
---- linux-4.6.2/arch/riscv/include/asm/linkage.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/linkage.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,7 @@
-+#ifndef _ASM_RISCV_LINKAGE_H
-+#define _ASM_RISCV_LINKAGE_H
-+
-+#define __ALIGN		.balign 4
-+#define __ALIGN_STR	".balign 4"
-+
-+#endif /* _ASM_RISCV_LINKAGE_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/mmu_context.h linux-4.6.2.riscv/arch/riscv/include/asm/mmu_context.h
---- linux-4.6.2/arch/riscv/include/asm/mmu_context.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/mmu_context.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,46 @@
-+#ifndef _ASM_RISCV_MMU_CONTEXT_H
-+#define _ASM_RISCV_MMU_CONTEXT_H
-+
-+#include <asm-generic/mm_hooks.h>
-+
-+#include <linux/mm.h>
-+#include <linux/sched.h>
-+#include <asm/tlbflush.h>
-+
-+static inline void enter_lazy_tlb(struct mm_struct *mm,
-+	struct task_struct *task)
-+{
-+}
-+
-+/* Initialize context-related info for a new mm_struct */
-+static inline int init_new_context(struct task_struct *task,
-+	struct mm_struct *mm)
-+{
-+	return 0;
-+}
-+
-+static inline void destroy_context(struct mm_struct *mm)
-+{
-+}
-+
-+static inline void switch_mm(struct mm_struct *prev,
-+	struct mm_struct *next, struct task_struct *task)
-+{
-+	if (likely(prev != next)) {
-+		csr_write(sptbr, virt_to_pfn(next->pgd));
-+		local_flush_tlb_all();
-+	}
-+}
-+
-+static inline void activate_mm(struct mm_struct *prev,
-+			       struct mm_struct *next)
-+{
-+	switch_mm(prev, next, NULL);
-+}
-+
-+static inline void deactivate_mm(struct task_struct *task,
-+	struct mm_struct *mm)
-+{
-+}
-+
-+#endif /* _ASM_RISCV_MMU_CONTEXT_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/mmu.h linux-4.6.2.riscv/arch/riscv/include/asm/mmu.h
---- linux-4.6.2/arch/riscv/include/asm/mmu.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/mmu.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,12 @@
-+#ifndef _ASM_RISCV_MMU_H
-+#define _ASM_RISCV_MMU_H
-+
-+#ifndef __ASSEMBLY__
-+
-+typedef struct {
-+	void *vdso;
-+} mm_context_t;
-+
-+#endif /* __ASSEMBLY__ */
-+
-+#endif /* _ASM_RISCV_MMU_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/page.h linux-4.6.2.riscv/arch/riscv/include/asm/page.h
---- linux-4.6.2/arch/riscv/include/asm/page.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/page.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,119 @@
-+#ifndef _ASM_RISCV_PAGE_H
-+#define _ASM_RISCV_PAGE_H
-+
-+#include <linux/pfn.h>
-+#include <linux/const.h>
-+
-+#define PAGE_SHIFT	(12)
-+#define PAGE_SIZE	(_AC(1,UL) << PAGE_SHIFT)
-+#define PAGE_MASK	(~(PAGE_SIZE - 1))
-+
-+#ifdef __KERNEL__
-+
-+/*
-+ * PAGE_OFFSET -- the first address of the first page of memory.
-+ * When not using MMU this corresponds to the first free page in
-+ * physical memory (aligned on a page boundary).
-+ */
-+#ifdef CONFIG_64BIT
-+#define PAGE_OFFSET		_AC(0xffffffff80000000,UL)
-+#else
-+#define PAGE_OFFSET		_AC(0xc0000000,UL)
-+#endif
-+
-+#ifndef __ASSEMBLY__
-+
-+#define PAGE_UP(addr)	(((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1)))
-+#define PAGE_DOWN(addr)	((addr)&(~((PAGE_SIZE)-1)))
-+
-+/* align addr on a size boundary - adjust address up/down if needed */
-+#define _ALIGN_UP(addr, size)	(((addr)+((size)-1))&(~((size)-1)))
-+#define _ALIGN_DOWN(addr, size)	((addr)&(~((size)-1)))
-+
-+/* align addr on a size boundary - adjust address up if needed */
-+#define _ALIGN(addr, size)	_ALIGN_UP(addr, size)
-+
-+#define clear_page(pgaddr)			memset((pgaddr), 0, PAGE_SIZE)
-+#define copy_page(to, from)			memcpy((to), (from), PAGE_SIZE)
-+
-+#define clear_user_page(pgaddr, vaddr, page)	memset((pgaddr), 0, PAGE_SIZE)
-+#define copy_user_page(vto, vfrom, vaddr, topg) \
-+			memcpy((vto), (vfrom), PAGE_SIZE)
-+
-+/*
-+ * Use struct definitions to apply C type checking
-+ */
-+
-+/* Page Global Directory entry */
-+typedef struct {
-+	unsigned long pgd;
-+} pgd_t;
-+
-+/* Page Table entry */
-+typedef struct {
-+	unsigned long pte;
-+} pte_t;
-+
-+typedef struct {
-+	unsigned long pgprot;
-+} pgprot_t;
-+
-+typedef struct page *pgtable_t;
-+
-+#define pte_val(x)	((x).pte)
-+#define pgd_val(x)	((x).pgd)
-+#define pgprot_val(x)	((x).pgprot)
-+
-+#define __pte(x)	((pte_t) { (x) })
-+#define __pgd(x)	((pgd_t) { (x) })
-+#define __pgprot(x)	((pgprot_t) { (x) })
-+
-+#ifdef CONFIG_64BITS
-+#define PTE_FMT "%016lx"
-+#else
-+#define PTE_FMT "%08lx"
-+#endif
-+
-+extern unsigned long va_pa_offset;
-+extern unsigned long pfn_base;
-+
-+extern unsigned long max_low_pfn;
-+extern unsigned long min_low_pfn;
-+
-+#define __pa(x)		((unsigned long)(x) - va_pa_offset)
-+#define __va(x)		((void *)((unsigned long) (x) + va_pa_offset))
-+
-+#define phys_to_pfn(phys)	(PFN_DOWN(phys))
-+#define pfn_to_phys(pfn)	(PFN_PHYS(pfn))
-+
-+#define virt_to_pfn(vaddr)	(phys_to_pfn(__pa(vaddr)))
-+#define pfn_to_virt(pfn)	(__va(pfn_to_phys(pfn)))
-+
-+#define virt_to_page(vaddr)	(pfn_to_page(virt_to_pfn(vaddr)))
-+#define page_to_virt(page)	(pfn_to_virt(page_to_pfn(page)))
-+
-+#define page_to_phys(page)	(pfn_to_phys(page_to_pfn(page)))
-+#define page_to_bus(page)	(page_to_phys(page))
-+#define phys_to_page(paddr)	(pfn_to_page(phys_to_pfn(paddr)))
-+
-+#define pfn_valid(pfn)		(((pfn) >= pfn_base) && (((pfn)-pfn_base) < max_mapnr))
-+
-+#define ARCH_PFN_OFFSET		(pfn_base)
-+
-+#endif /* __ASSEMBLY__ */
-+
-+#define virt_addr_valid(vaddr)	(pfn_valid(virt_to_pfn(vaddr)))
-+
-+#endif /* __KERNEL__ */
-+
-+#define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
-+				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-+
-+#include <asm-generic/memory_model.h>
-+#include <asm-generic/getorder.h>
-+
-+/* vDSO support */
-+/* We do define AT_SYSINFO_EHDR but don't use the gate mechanism */
-+#define __HAVE_ARCH_GATE_AREA
-+
-+#endif /* _ASM_RISCV_PAGE_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/pci.h linux-4.6.2.riscv/arch/riscv/include/asm/pci.h
---- linux-4.6.2/arch/riscv/include/asm/pci.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/pci.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,37 @@
-+#ifndef __ASM_RISCV_PCI_H
-+#define __ASM_RISCV_PCI_H
-+#ifdef __KERNEL__
-+
-+#include <linux/types.h>
-+#include <linux/slab.h>
-+#include <linux/dma-mapping.h>
-+
-+#include <asm/io.h>
-+
-+#define PCIBIOS_MIN_IO		0x1000
-+#define PCIBIOS_MIN_MEM		0
-+
-+/* RISC-V shim does not initialize PCI bus */
-+#define pcibios_assign_all_busses() 1
-+
-+/* RISC-V TileLink and PCIe share the share address space */
-+#define PCI_DMA_BUS_IS_PHYS 1
-+
-+extern int isa_dma_bridge_buggy;
-+
-+#ifdef CONFIG_PCI
-+static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
-+{
-+	/* no legacy IRQ on risc-v */
-+	return -ENODEV;
-+}
-+
-+static inline int pci_proc_domain(struct pci_bus *bus)
-+{
-+	/* always show the domain in /proc */
-+	return 1;
-+}
-+#endif  /* CONFIG_PCI */
-+
-+#endif  /* __KERNEL__ */
-+#endif  /* __ASM_PCI_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/pgalloc.h linux-4.6.2.riscv/arch/riscv/include/asm/pgalloc.h
---- linux-4.6.2/arch/riscv/include/asm/pgalloc.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/pgalloc.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,107 @@
-+#ifndef _ASM_RISCV_PGALLOC_H
-+#define _ASM_RISCV_PGALLOC_H
-+
-+#include <linux/mm.h>
-+#include <asm/tlb.h>
-+
-+static inline void pmd_populate_kernel(struct mm_struct *mm,
-+	pmd_t *pmd, pte_t *pte)
-+{
-+	unsigned long pfn = virt_to_pfn(pte);
-+	set_pmd(pmd, __pmd((pfn << _PAGE_PFN_SHIFT) | _PAGE_TABLE));
-+}
-+
-+static inline void pmd_populate(struct mm_struct *mm,
-+	pmd_t *pmd, pgtable_t pte)
-+{
-+	unsigned long pfn = virt_to_pfn(page_address(pte));
-+	set_pmd(pmd, __pmd((pfn << _PAGE_PFN_SHIFT) | _PAGE_TABLE));
-+}
-+
-+#ifndef __PAGETABLE_PMD_FOLDED
-+static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
-+{
-+	unsigned long pfn = virt_to_pfn(pmd);
-+	set_pud(pud, __pud((pfn << _PAGE_PFN_SHIFT) | _PAGE_TABLE));
-+}
-+#endif /* __PAGETABLE_PMD_FOLDED */
-+
-+#define pmd_pgtable(pmd)	pmd_page(pmd)
-+
-+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
-+{
-+	pgd_t *pgd;
-+
-+	pgd = (pgd_t *)__get_free_page(GFP_KERNEL);
-+	if (likely(pgd != NULL)) {
-+		memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
-+		/* Copy kernel mappings */
-+		memcpy(pgd + USER_PTRS_PER_PGD,
-+			init_mm.pgd + USER_PTRS_PER_PGD,
-+			(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
-+	}
-+	return pgd;
-+}
-+
-+static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
-+{
-+	free_page((unsigned long)pgd);
-+}
-+
-+#ifndef __PAGETABLE_PMD_FOLDED
-+
-+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
-+{
-+	return (pmd_t *)__get_free_page(
-+		GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
-+}
-+
-+static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
-+{
-+	free_page((unsigned long)pmd);
-+}
-+
-+#define __pmd_free_tlb(tlb, pmd, addr)  pmd_free((tlb)->mm, pmd)
-+
-+#endif /* __PAGETABLE_PMD_FOLDED */
-+
-+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-+	unsigned long address)
-+{
-+	return (pte_t *)__get_free_page(
-+		GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
-+}
-+
-+static inline struct page *pte_alloc_one(struct mm_struct *mm,
-+	unsigned long address)
-+{
-+	struct page *pte;
-+	pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
-+	if (likely(pte != NULL)) {
-+		pgtable_page_ctor(pte);
-+	}
-+	return pte;
-+}
-+
-+static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-+{
-+	free_page((unsigned long)pte);
-+}
-+
-+static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
-+{
-+	pgtable_page_dtor(pte);
-+	__free_page(pte);
-+}
-+
-+#define __pte_free_tlb(tlb, pte, buf)   \
-+do {                                    \
-+	pgtable_page_dtor(pte);         \
-+	tlb_remove_page((tlb), pte);    \
-+} while (0)
-+
-+static inline void check_pgt_cache(void)
-+{
-+}
-+
-+#endif /* _ASM_RISCV_PGALLOC_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/pgtable-32.h linux-4.6.2.riscv/arch/riscv/include/asm/pgtable-32.h
---- linux-4.6.2/arch/riscv/include/asm/pgtable-32.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/pgtable-32.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,12 @@
-+#ifndef _ASM_RISCV_PGTABLE_32_H
-+#define _ASM_RISCV_PGTABLE_32_H
-+
-+#include <asm-generic/pgtable-nopmd.h>
-+#include <linux/const.h>
-+
-+/* Size of region mapped by a page global directory */
-+#define PGDIR_SHIFT     22
-+#define PGDIR_SIZE      (_AC(1,UL) << PGDIR_SHIFT)
-+#define PGDIR_MASK      (~(PGDIR_SIZE - 1))
-+
-+#endif /* _ASM_RISCV_PGTABLE_32_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/pgtable-64.h linux-4.6.2.riscv/arch/riscv/include/asm/pgtable-64.h
---- linux-4.6.2/arch/riscv/include/asm/pgtable-64.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/pgtable-64.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,66 @@
-+#ifndef _ASM_RISCV_PGTABLE_64_H
-+#define _ASM_RISCV_PGTABLE_64_H
-+
-+#include <linux/const.h>
-+
-+#define PGDIR_SHIFT     30
-+/* Size of region mapped by a page global directory */
-+#define PGDIR_SIZE      (_AC(1,UL) << PGDIR_SHIFT)
-+#define PGDIR_MASK      (~(PGDIR_SIZE - 1))
-+
-+#define PMD_SHIFT       21
-+/* Size of region mapped by a page middle directory */
-+#define PMD_SIZE        (_AC(1,UL) << PMD_SHIFT)
-+#define PMD_MASK        (~(PMD_SIZE - 1))
-+
-+/* Page Middle Directory entry */
-+typedef struct {
-+	unsigned long pmd;
-+} pmd_t;
-+
-+#define pmd_val(x)      ((x).pmd)
-+#define __pmd(x)        ((pmd_t) { (x) })
-+
-+#define PTRS_PER_PMD    (PAGE_SIZE / sizeof(pmd_t))
-+
-+static inline int pud_present(pud_t pud)
-+{
-+	return (pud_val(pud) & _PAGE_PRESENT);
-+}
-+
-+static inline int pud_none(pud_t pud)
-+{
-+	return (pud_val(pud) == 0);
-+}
-+
-+static inline int pud_bad(pud_t pud)
-+{
-+	return !pud_present(pud);
-+}
-+
-+static inline void set_pud(pud_t *pudp, pud_t pud)
-+{
-+	*pudp = pud;
-+}
-+
-+static inline void pud_clear(pud_t *pudp)
-+{
-+	set_pud(pudp, __pud(0));
-+}
-+
-+static inline unsigned long pud_page_vaddr(pud_t pud)
-+{
-+	return (unsigned long)pfn_to_virt(pud_val(pud) >> _PAGE_PFN_SHIFT);
-+}
-+
-+#define pmd_index(addr) (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
-+
-+static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
-+{
-+	return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(addr);
-+}
-+
-+#define pmd_ERROR(e) \
-+	pr_err("%s:%d: bad pmd %016lx.\n", __FILE__, __LINE__, pmd_val(e))
-+
-+#endif /* _ASM_RISCV_PGTABLE_64_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/pgtable-bits.h linux-4.6.2.riscv/arch/riscv/include/asm/pgtable-bits.h
---- linux-4.6.2/arch/riscv/include/asm/pgtable-bits.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/pgtable-bits.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,37 @@
-+#ifndef _ASM_RISCV_PGTABLE_BITS_H
-+#define _ASM_RISCV_PGTABLE_BITS_H
-+
-+/*
-+ * RV32Sv32 page table entry:
-+ * | 31 10 | 9             7 | 6 | 5 | 4  1 | 0
-+ *    PFN    reserved for SW   D   R   TYPE   V
-+ *
-+ * RV64Sv39 / RV64Sv48 page table entry:
-+ * | 63           48 | 47 10 | 9             7 | 6 | 5 | 4  1 | 0
-+ *   reserved for HW    PFN    reserved for SW   D   R   TYPE   V
-+ */
-+
-+#define _PAGE_PRESENT   (1 << 0)
-+#define _PAGE_READ      (1 << 1)    /* Readable */
-+#define _PAGE_WRITE     (1 << 2)    /* Writable */
-+#define _PAGE_EXEC      (1 << 3)    /* Executable */
-+#define _PAGE_USER      (1 << 4)    /* User */
-+#define _PAGE_GLOBAL    (1 << 5)    /* Global */
-+#define _PAGE_ACCESSED  (1 << 6)    /* Set by hardware on any access */
-+#define _PAGE_DIRTY     (1 << 7)    /* Set by hardware on any write */
-+#define _PAGE_SOFT      (1 << 8)    /* Reserved for software */
-+
-+#define _PAGE_SPECIAL   _PAGE_SOFT
-+#define _PAGE_TABLE     _PAGE_PRESENT
-+
-+#define _PAGE_PFN_SHIFT 10
-+
-+/* Set of bits to preserve across pte_modify() */
-+#define _PAGE_CHG_MASK  (~(unsigned long)(_PAGE_PRESENT | _PAGE_READ |	\
-+					  _PAGE_WRITE | _PAGE_EXEC |	\
-+					  _PAGE_USER | _PAGE_GLOBAL))
-+
-+/* Advertise support for _PAGE_SPECIAL */
-+#define __HAVE_ARCH_PTE_SPECIAL
-+
-+#endif /* _ASM_RISCV_PGTABLE_BITS_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/pgtable.h linux-4.6.2.riscv/arch/riscv/include/asm/pgtable.h
---- linux-4.6.2/arch/riscv/include/asm/pgtable.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/pgtable.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,329 @@
-+#ifndef _ASM_RISCV_PGTABLE_H
-+#define _ASM_RISCV_PGTABLE_H
-+
-+#include <linux/mmzone.h>
-+
-+#include <asm/pgtable-bits.h>
-+
-+#ifndef __ASSEMBLY__
-+
-+#ifdef CONFIG_MMU
-+
-+/* Page Upper Directory not used in RISC-V */
-+#include <asm-generic/pgtable-nopud.h>
-+#include <asm/page.h>
-+#include <linux/mm_types.h>
-+
-+#ifdef CONFIG_64BIT
-+#include <asm/pgtable-64.h>
-+#else
-+#include <asm/pgtable-32.h>
-+#endif /* CONFIG_64BIT */
-+
-+/* Number of entries in the page global directory */
-+#define PTRS_PER_PGD    (PAGE_SIZE / sizeof(pgd_t))
-+/* Number of entries in the page table */
-+#define PTRS_PER_PTE    (PAGE_SIZE / sizeof(pte_t))
-+
-+/* Number of PGD entries that a user-mode program can use */
-+#define USER_PTRS_PER_PGD   (TASK_SIZE / PGDIR_SIZE)
-+#define FIRST_USER_ADDRESS  0
-+
-+/* Page protection bits */
-+#define _PAGE_BASE	(_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_USER)
-+
-+#define PAGE_NONE		__pgprot(0)
-+#define PAGE_READ		__pgprot(_PAGE_BASE | _PAGE_READ)
-+#define PAGE_WRITE		__pgprot(_PAGE_BASE | _PAGE_READ | _PAGE_WRITE)
-+#define PAGE_EXEC		__pgprot(_PAGE_BASE | _PAGE_EXEC)
-+#define PAGE_READ_EXEC		__pgprot(_PAGE_BASE | _PAGE_READ | _PAGE_EXEC)
-+#define PAGE_WRITE_EXEC		__pgprot(_PAGE_BASE | _PAGE_READ |	\
-+					 _PAGE_EXEC | _PAGE_WRITE)
-+
-+#define PAGE_COPY		PAGE_READ
-+#define PAGE_COPY_EXEC		PAGE_EXEC
-+#define PAGE_COPY_READ_EXEC	PAGE_READ_EXEC
-+#define PAGE_SHARED		PAGE_WRITE
-+#define PAGE_SHARED_EXEC	PAGE_WRITE_EXEC
-+
-+#define PAGE_KERNEL		__pgprot(_PAGE_READ | _PAGE_WRITE |	\
-+					 _PAGE_PRESENT | _PAGE_ACCESSED)
-+
-+#define swapper_pg_dir NULL
-+
-+/* MAP_PRIVATE permissions: xwr (copy-on-write) */
-+#define __P000	PAGE_NONE
-+#define __P001	PAGE_READ
-+#define __P010	PAGE_COPY
-+#define __P011	PAGE_COPY
-+#define __P100	PAGE_EXEC
-+#define __P101	PAGE_READ_EXEC
-+#define __P110	PAGE_COPY_EXEC
-+#define __P111	PAGE_COPY_READ_EXEC
-+
-+/* MAP_SHARED permissions: xwr */
-+#define __S000	PAGE_NONE
-+#define __S001	PAGE_READ
-+#define __S010	PAGE_SHARED
-+#define __S011	PAGE_SHARED
-+#define __S100	PAGE_EXEC
-+#define __S101	PAGE_READ_EXEC
-+#define __S110	PAGE_SHARED_EXEC
-+#define __S111	PAGE_SHARED_EXEC
-+
-+/*
-+ * ZERO_PAGE is a global shared page that is always zero,
-+ * used for zero-mapped memory areas, etc.
-+ */
-+extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
-+#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
-+
-+static inline int pmd_present(pmd_t pmd)
-+{
-+	return (pmd_val(pmd) & _PAGE_PRESENT);
-+}
-+
-+static inline int pmd_none(pmd_t pmd)
-+{
-+	return (pmd_val(pmd) == 0);
-+}
-+
-+static inline int pmd_bad(pmd_t pmd)
-+{
-+	return !pmd_present(pmd);
-+}
-+
-+static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
-+{
-+	*pmdp = pmd;
-+}
-+
-+static inline void pmd_clear(pmd_t *pmdp)
-+{
-+	set_pmd(pmdp, __pmd(0));
-+}
-+
-+
-+#define pgd_index(addr) (((addr) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
-+
-+/* Locate an entry in the page global directory */
-+static inline pgd_t *pgd_offset(const struct mm_struct *mm, unsigned long addr)
-+{
-+	return mm->pgd + pgd_index(addr);
-+}
-+/* Locate an entry in the kernel page global directory */
-+#define pgd_offset_k(addr)      pgd_offset(&init_mm, (addr))
-+
-+static inline struct page *pmd_page(pmd_t pmd)
-+{
-+	return pfn_to_page(pmd_val(pmd) >> _PAGE_PFN_SHIFT);
-+}
-+
-+static inline unsigned long pmd_page_vaddr(pmd_t pmd)
-+{
-+	return (unsigned long)pfn_to_virt(pmd_val(pmd) >> _PAGE_PFN_SHIFT);
-+}
-+
-+/* Yields the page frame number (PFN) of a page table entry */
-+static inline unsigned long pte_pfn(pte_t pte)
-+{
-+	return (pte_val(pte) >> _PAGE_PFN_SHIFT);
-+}
-+
-+#define pte_page(x)     pfn_to_page(pte_pfn(x))
-+
-+/* Constructs a page table entry */
-+static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)
-+{
-+	return __pte((pfn << _PAGE_PFN_SHIFT) | pgprot_val(prot));
-+}
-+
-+static inline pte_t mk_pte(struct page *page, pgprot_t prot)
-+{
-+	return pfn_pte(page_to_pfn(page), prot);
-+}
-+
-+#define pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) 
-+
-+static inline pte_t *pte_offset_kernel(pmd_t *pmd, unsigned long addr)
-+{
-+	return (pte_t *)pmd_page_vaddr(*pmd) + pte_index(addr);
-+}
-+
-+#define pte_offset_map(dir, addr)	pte_offset_kernel((dir), (addr))
-+#define pte_unmap(pte)			((void)(pte))
-+
-+/*
-+ * Certain architectures need to do special things when PTEs within
-+ * a page table are directly modified.  Thus, the following hook is
-+ * made available.
-+ */
-+static inline void set_pte(pte_t *ptep, pte_t pteval)
-+{
-+	*ptep = pteval;
-+}
-+
-+static inline void set_pte_at(struct mm_struct *mm,
-+	unsigned long addr, pte_t *ptep, pte_t pteval)
-+{
-+	set_pte(ptep, pteval);
-+}
-+
-+static inline void pte_clear(struct mm_struct *mm,
-+	unsigned long addr, pte_t *ptep)
-+{
-+	set_pte_at(mm, addr, ptep, __pte(0));
-+}
-+
-+static inline int pte_present(pte_t pte)
-+{
-+	return (pte_val(pte) & _PAGE_PRESENT);
-+}
-+
-+static inline int pte_none(pte_t pte)
-+{
-+	return (pte_val(pte) == 0);
-+}
-+
-+/* static inline int pte_read(pte_t pte) */
-+
-+static inline int pte_write(pte_t pte)
-+{
-+	return pte_val(pte) & _PAGE_WRITE;
-+}
-+
-+static inline int pte_huge(pte_t pte)
-+{
-+	return pte_present(pte)
-+		&& (pte_val(pte) & (_PAGE_READ | _PAGE_WRITE | _PAGE_EXEC));
-+}
-+
-+/* static inline int pte_exec(pte_t pte) */
-+
-+static inline int pte_dirty(pte_t pte)
-+{
-+	return pte_val(pte) & _PAGE_DIRTY;
-+}
-+
-+static inline int pte_young(pte_t pte)
-+{
-+	return pte_val(pte) & _PAGE_ACCESSED;
-+}
-+
-+static inline int pte_special(pte_t pte)
-+{
-+	return pte_val(pte) & _PAGE_SPECIAL;
-+}
-+
-+/* static inline pte_t pte_rdprotect(pte_t pte) */
-+
-+static inline pte_t pte_wrprotect(pte_t pte)
-+{
-+	return __pte(pte_val(pte) & ~(_PAGE_WRITE));
-+}
-+
-+/* static inline pte_t pte_mkread(pte_t pte) */
-+
-+static inline pte_t pte_mkwrite(pte_t pte)
-+{
-+	return __pte(pte_val(pte) | _PAGE_WRITE);
-+}
-+
-+/* static inline pte_t pte_mkexec(pte_t pte) */
-+
-+static inline pte_t pte_mkdirty(pte_t pte)
-+{
-+	return __pte(pte_val(pte) | _PAGE_DIRTY);
-+}
-+
-+static inline pte_t pte_mkclean(pte_t pte)
-+{
-+	return __pte(pte_val(pte) & ~(_PAGE_DIRTY));
-+}
-+
-+static inline pte_t pte_mkyoung(pte_t pte)
-+{
-+	return __pte(pte_val(pte) & ~(_PAGE_ACCESSED));
-+}
-+
-+static inline pte_t pte_mkold(pte_t pte)
-+{
-+	return __pte(pte_val(pte) | _PAGE_ACCESSED);
-+}
-+
-+static inline pte_t pte_mkspecial(pte_t pte)
-+{
-+	return __pte(pte_val(pte) | _PAGE_SPECIAL);
-+}
-+
-+/* Modify page protection bits */
-+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
-+{
-+	return __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot));
-+}
-+
-+#define pgd_ERROR(e) \
-+	pr_err("%s:%d: bad pgd " PTE_FMT ".\n", __FILE__, __LINE__, pgd_val(e))
-+
-+
-+/* Commit new configuration to MMU hardware */
-+static inline void update_mmu_cache(struct vm_area_struct *vma,
-+	unsigned long address, pte_t *ptep)
-+{
-+}
-+
-+/*
-+ * Encode and decode a swap entry
-+ *
-+ * Format of swap PTE:
-+ *	bit            0:	_PAGE_PRESENT (zero)
-+ *	bit            1:	reserved for future use (zero)
-+ *	bits      2 to 6:	swap type
-+ *	bits 7 to XLEN-1:	swap offset
-+ */
-+#define __SWP_TYPE_SHIFT	2
-+#define __SWP_TYPE_BITS		5
-+#define __SWP_TYPE_MASK		((1UL << __SWP_TYPE_BITS) - 1)
-+#define __SWP_OFFSET_SHIFT	(__SWP_TYPE_BITS + __SWP_TYPE_SHIFT)
-+
-+#define MAX_SWAPFILES_CHECK()	\
-+	BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > __SWP_TYPE_BITS)
-+
-+#define __swp_type(x)		(((x).val >> __SWP_TYPE_SHIFT) & __SWP_TYPE_MASK)
-+#define __swp_offset(x)		((x).val >> __SWP_OFFSET_SHIFT)
-+#define __swp_entry(type, offset) ((swp_entry_t) \
-+	{ ((type) << __SWP_TYPE_SHIFT) | ((offset) << __SWP_OFFSET_SHIFT) })
-+
-+#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
-+#define __swp_entry_to_pte(x)	((pte_t) { (x).val })
-+
-+#ifdef CONFIG_FLATMEM
-+#define kern_addr_valid(addr)   (1) /* FIXME */
-+#endif
-+
-+extern void paging_init(void);
-+
-+static inline void pgtable_cache_init(void)
-+{
-+	/* No page table caches to initialize */
-+}
-+
-+#endif /* CONFIG_MMU */
-+
-+#define VMALLOC_SIZE     _AC(0x8000000,UL)
-+#define VMALLOC_END      (PAGE_OFFSET - 1)
-+#define VMALLOC_START    (PAGE_OFFSET - VMALLOC_SIZE)
-+
-+/* Task size is 0x40000000000 for RV64 or 0xb800000 for RV32.
-+   Note that PGDIR_SIZE must evenly divide TASK_SIZE. */
-+#ifdef CONFIG_64BIT
-+#define TASK_SIZE (PGDIR_SIZE * PTRS_PER_PGD / 2)
-+#else
-+#define TASK_SIZE VMALLOC_START
-+#endif
-+
-+#include <asm-generic/pgtable.h>
-+
-+#endif /* !__ASSEMBLY__ */
-+
-+#endif /* _ASM_RISCV_PGTABLE_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/processor.h linux-4.6.2.riscv/arch/riscv/include/asm/processor.h
---- linux-4.6.2/arch/riscv/include/asm/processor.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/processor.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,87 @@
-+#ifndef _ASM_RISCV_PROCESSOR_H
-+#define _ASM_RISCV_PROCESSOR_H
-+
-+#include <linux/const.h>
-+
-+#include <asm/ptrace.h>
-+
-+/*
-+ * This decides where the kernel will search for a free chunk of vm
-+ * space during mmap's.
-+ */
-+#define TASK_UNMAPPED_BASE	PAGE_ALIGN(TASK_SIZE >> 1)
-+
-+#ifdef __KERNEL__
-+#define STACK_TOP		TASK_SIZE
-+#define STACK_TOP_MAX		STACK_TOP
-+#endif /* __KERNEL__ */
-+
-+#ifndef __ASSEMBLY__
-+
-+struct task_struct;
-+struct pt_regs;
-+
-+/*
-+ * Default implementation of macro that returns current
-+ * instruction pointer ("program counter").
-+ */
-+#define current_text_addr()	({ __label__ _l; _l: &&_l;})
-+
-+/* CPU-specific state of a task */
-+struct thread_struct {
-+	/* Callee-saved registers */
-+	unsigned long ra;
-+	unsigned long sp;	/* Kernel mode stack */
-+	unsigned long s[12];	/* s[0]: frame pointer */
-+	struct user_fpregs_struct fstate;
-+};
-+
-+#define INIT_THREAD {					\
-+	.sp = sizeof(init_stack) + (long)&init_stack,	\
-+}
-+
-+/* Return saved (kernel) PC of a blocked thread. */
-+#define thread_saved_pc(t)	((t)->thread.ra)
-+#define thread_saved_sp(t)	((t)->thread.sp)
-+#define thread_saved_fp(t)	((t)->thread.s[0])
-+
-+#define task_pt_regs(tsk) \
-+	((struct pt_regs *)(task_stack_page(tsk) + THREAD_SIZE) - 1)
-+
-+#define KSTK_EIP(tsk)		(task_pt_regs(tsk)->sepc)
-+#define KSTK_ESP(tsk)		(task_pt_regs(tsk)->sp)
-+
-+
-+/* Do necessary setup to start up a newly executed thread. */
-+extern void start_thread(struct pt_regs *regs,
-+			unsigned long pc, unsigned long sp);
-+
-+/* Free all resources held by a thread. */
-+static inline void release_thread(struct task_struct *dead_task)
-+{
-+}
-+
-+/* Free current thread data structures, etc. */
-+static inline void exit_thread(void)
-+{
-+}
-+
-+extern unsigned long get_wchan(struct task_struct *p);
-+
-+
-+static inline void cpu_relax(void)
-+{
-+	int dummy;
-+	/* In lieu of a halt instruction, induce a long-latency stall. */
-+	__asm__ __volatile__ ("div %0, %0, zero" : "=r" (dummy));
-+	barrier();
-+}
-+
-+static inline void wait_for_interrupt(void)
-+{
-+	__asm__ __volatile__ ("wfi");
-+}
-+
-+#endif /* __ASSEMBLY__ */
-+
-+#endif /* _ASM_RISCV_PROCESSOR_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/ptrace.h linux-4.6.2.riscv/arch/riscv/include/asm/ptrace.h
---- linux-4.6.2/arch/riscv/include/asm/ptrace.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/ptrace.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,103 @@
-+#ifndef _ASM_RISCV_PTRACE_H
-+#define _ASM_RISCV_PTRACE_H
-+
-+#include <uapi/asm/ptrace.h>
-+#include <asm/csr.h>
-+
-+#ifndef __ASSEMBLY__
-+
-+struct pt_regs {
-+	unsigned long sepc;
-+	unsigned long ra;
-+	unsigned long sp;
-+	unsigned long gp;
-+	unsigned long tp;
-+	unsigned long t0;
-+	unsigned long t1;
-+	unsigned long t2;
-+	unsigned long s0;
-+	unsigned long s1;
-+	unsigned long a0;
-+	unsigned long a1;
-+	unsigned long a2;
-+	unsigned long a3;
-+	unsigned long a4;
-+	unsigned long a5;
-+	unsigned long a6;
-+	unsigned long a7;
-+	unsigned long s2;
-+	unsigned long s3;
-+	unsigned long s4;
-+	unsigned long s5;
-+	unsigned long s6;
-+	unsigned long s7;
-+	unsigned long s8;
-+	unsigned long s9;
-+	unsigned long s10;
-+	unsigned long s11;
-+	unsigned long t3;
-+	unsigned long t4;
-+	unsigned long t5;
-+	unsigned long t6;
-+	/* Supervisor CSRs */
-+	unsigned long sstatus;
-+	unsigned long sbadaddr;
-+	unsigned long scause;
-+};
-+
-+#ifdef CONFIG_64BIT
-+#define REG_FMT "%016lx"
-+#else
-+#define REG_FMT "%08lx"
-+#endif
-+
-+#define user_mode(regs) (((regs)->sstatus & SR_PS) == 0)
-+
-+
-+/* Helpers for working with the instruction pointer */
-+#define GET_IP(regs) ((regs)->sepc)
-+#define SET_IP(regs, val) (GET_IP(regs) = (val))
-+
-+static inline unsigned long instruction_pointer(struct pt_regs *regs)
-+{
-+	return GET_IP(regs);
-+}
-+static inline void instruction_pointer_set(struct pt_regs *regs,
-+                                           unsigned long val)
-+{
-+	SET_IP(regs, val);
-+}
-+
-+#define profile_pc(regs) instruction_pointer(regs)
-+
-+/* Helpers for working with the user stack pointer */
-+#define GET_USP(regs) ((regs)->sp)
-+#define SET_USP(regs, val) (GET_USP(regs) = (val))
-+
-+static inline unsigned long user_stack_pointer(struct pt_regs *regs)
-+{
-+	return GET_USP(regs);
-+}
-+static inline void user_stack_pointer_set(struct pt_regs *regs,
-+                                          unsigned long val)
-+{
-+	SET_USP(regs, val);
-+}
-+
-+/* Helpers for working with the frame pointer */
-+#define GET_FP(regs) ((regs)->s0)
-+#define SET_FP(regs, val) (GET_FP(regs) = (val))
-+
-+static inline unsigned long frame_pointer(struct pt_regs *regs)
-+{
-+	return GET_FP(regs);
-+}
-+static inline void frame_pointer_set(struct pt_regs *regs,
-+                                     unsigned long val)
-+{
-+	SET_FP(regs, val);
-+}
-+
-+#endif /* __ASSEMBLY__ */
-+
-+#endif /* _ASM_RISCV_PTRACE_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/sbi-con.h linux-4.6.2.riscv/arch/riscv/include/asm/sbi-con.h
---- linux-4.6.2/arch/riscv/include/asm/sbi-con.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/sbi-con.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,8 @@
-+#ifndef _ASM_RISCV_SBI_CON_H
-+#define _ASM_RISCV_SBI_CON_H
-+
-+#include <linux/irqreturn.h>
-+
-+irqreturn_t sbi_console_isr(void);
-+
-+#endif /* _ASM_RISCV_SBI_CON_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/sbi.h linux-4.6.2.riscv/arch/riscv/include/asm/sbi.h
---- linux-4.6.2/arch/riscv/include/asm/sbi.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/sbi.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,30 @@
-+#ifndef _ASM_RISCV_SBI_H
-+#define _ASM_RISCV_SBI_H
-+
-+typedef struct {
-+  unsigned long base;
-+  unsigned long size;
-+  unsigned long node_id;
-+} memory_block_info;
-+
-+unsigned long sbi_query_memory(unsigned long id, memory_block_info *p);
-+
-+unsigned long sbi_hart_id(void);
-+unsigned long sbi_num_harts(void);
-+unsigned long sbi_timebase(void);
-+void sbi_set_timer(unsigned long long stime_value);
-+void sbi_send_ipi(unsigned long hart_id);
-+unsigned long sbi_clear_ipi(void);
-+void sbi_shutdown(void);
-+
-+void sbi_console_putchar(unsigned char ch);
-+int sbi_console_getchar(void);
-+
-+void sbi_remote_sfence_vm(unsigned long hart_mask_ptr, unsigned long asid);
-+void sbi_remote_sfence_vm_range(unsigned long hart_mask_ptr, unsigned long asid, unsigned long start, unsigned long size);
-+void sbi_remote_fence_i(unsigned long hart_mask_ptr);
-+
-+unsigned long sbi_mask_interrupt(unsigned long which);
-+unsigned long sbi_unmask_interrupt(unsigned long which);
-+
-+#endif
-diff -Nur linux-4.6.2/arch/riscv/include/asm/serial.h linux-4.6.2.riscv/arch/riscv/include/asm/serial.h
---- linux-4.6.2/arch/riscv/include/asm/serial.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/serial.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,29 @@
-+#ifndef _ASM_RISCV_SERIAL_H
-+#define _ASM_RISCV_SERIAL_H
-+
-+/*
-+ * FIXME: interim serial support for riscv-qemu
-+ *
-+ * Currently requires that the emulator itself create a hole at addresses
-+ * 0x3f8 - 0x3ff without looking through page tables.
-+ *
-+ * This assumes you have a 1.8432 MHz clock for your UART.
-+ */
-+#define BASE_BAUD ( 1843200 / 16 )
-+
-+/* Standard COM flags */
-+#ifdef CONFIG_SERIAL_DETECT_IRQ
-+#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
-+#else
-+#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
-+#endif
-+
-+#define SERIAL_PORT_DFNS 			\
-+	{	/* ttyS0 */			\
-+		.baud_base = BASE_BAUD,		\
-+		.port      = 0x3F8,		\
-+		.irq       = 4,			\
-+		.flags     = STD_COM_FLAGS,	\
-+	},
-+
-+#endif /* _ASM_RISCV_SERIAL_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/setup.h linux-4.6.2.riscv/arch/riscv/include/asm/setup.h
---- linux-4.6.2/arch/riscv/include/asm/setup.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/setup.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,6 @@
-+#ifndef _ASM_RISCV_SETUP_H
-+#define _ASM_RISCV_SETUP_H
-+
-+#include <asm-generic/setup.h>
-+
-+#endif /* _ASM_RISCV_SETUP_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/smp.h linux-4.6.2.riscv/arch/riscv/include/asm/smp.h
---- linux-4.6.2/arch/riscv/include/asm/smp.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/smp.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,28 @@
-+#ifndef _ASM_RISCV_SMP_H
-+#define _ASM_RISCV_SMP_H
-+
-+#include <linux/cpumask.h>
-+#include <linux/irqreturn.h>
-+
-+#ifdef CONFIG_SMP
-+
-+/* SMP initialization hook for setup_arch */
-+void __init init_clockevent(void);
-+
-+/* SMP initialization hook for setup_arch */
-+void __init setup_smp(void);
-+
-+/* Hook for the generic smp_call_function_many() routine. */
-+void arch_send_call_function_ipi_mask(struct cpumask *mask);
-+
-+/* Hook for the generic smp_call_function_single() routine. */
-+void arch_send_call_function_single_ipi(int cpu);
-+
-+#define raw_smp_processor_id() (current_thread_info()->cpu)
-+
-+/* Interprocessor interrupt handler */
-+irqreturn_t handle_ipi(void);
-+
-+#endif /* CONFIG_SMP */
-+
-+#endif /* _ASM_RISCV_SMP_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/spinlock.h linux-4.6.2.riscv/arch/riscv/include/asm/spinlock.h
---- linux-4.6.2/arch/riscv/include/asm/spinlock.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/spinlock.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,142 @@
-+#ifndef _ASM_RISCV_SPINLOCK_H
-+#define _ASM_RISCV_SPINLOCK_H
-+
-+#include <linux/kernel.h>
-+#include <asm/current.h>
-+
-+/*
-+ * Simple spin lock operations.  These provide no fairness guarantees.
-+ */
-+
-+#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-+#define arch_spin_is_locked(x)	((x)->lock != 0)
-+#define arch_spin_unlock_wait(x) \
-+		do { cpu_relax(); } while ((x)->lock)
-+
-+static inline void arch_spin_unlock(arch_spinlock_t *lock)
-+{
-+	__asm__ __volatile__ (
-+		"amoswap.w.rl x0, x0, %0"
-+		: "=A" (lock->lock)
-+		:: "memory");
-+}
-+
-+static inline int arch_spin_trylock(arch_spinlock_t *lock)
-+{
-+	int tmp = 1, busy;
-+
-+	__asm__ __volatile__ (
-+		"amoswap.w.aq %0, %2, %1"
-+		: "=r" (busy), "+A" (lock->lock)
-+		: "r" (tmp)
-+		: "memory");
-+
-+	return !busy;
-+}
-+
-+static inline void arch_spin_lock(arch_spinlock_t *lock)
-+{
-+	while (1) {
-+		if (arch_spin_is_locked(lock))
-+			continue;
-+
-+		if (arch_spin_trylock(lock))
-+			break;
-+	}
-+}
-+
-+/***********************************************************/
-+
-+static inline int arch_read_can_lock(arch_rwlock_t *lock)
-+{
-+	return lock->lock >= 0;
-+}
-+
-+static inline int arch_write_can_lock(arch_rwlock_t *lock)
-+{
-+	return lock->lock == 0;
-+}
-+
-+static inline void arch_read_lock(arch_rwlock_t *lock)
-+{
-+	int tmp;
-+
-+	__asm__ __volatile__(
-+		"1:	lr.w	%1, %0\n"
-+		"	bltz	%1, 1b\n"
-+		"	addi	%1, %1, 1\n"
-+		"	sc.w.aq	%1, %1, %0\n"
-+		"	bnez	%1, 1b\n"
-+		: "+A" (lock->lock), "=&r" (tmp)
-+		:: "memory");
-+}
-+
-+static inline void arch_write_lock(arch_rwlock_t *lock)
-+{
-+	int tmp;
-+
-+	__asm__ __volatile__(
-+		"1:	lr.w	%1, %0\n"
-+		"	bnez	%1, 1b\n"
-+		"	li	%1, -1\n"
-+		"	sc.w.aq	%1, %1, %0\n"
-+		"	bnez	%1, 1b\n"
-+		: "+A" (lock->lock), "=&r" (tmp)
-+		:: "memory");
-+}
-+
-+static inline int arch_read_trylock(arch_rwlock_t * lock)
-+{
-+	int busy;
-+
-+	__asm__ __volatile__(
-+		"1:	lr.w	%1, %0\n"
-+		"	bltz	%1, 1f\n"
-+		"	addi	%1, %1, 1\n"
-+		"	sc.w.aq	%1, %1, %0\n"
-+		"	bnez	%1, 1b\n"
-+		"1:\n"
-+		: "+A" (lock->lock), "=&r" (busy)
-+		:: "memory");
-+	
-+	return !busy;
-+}
-+
-+static inline int arch_write_trylock(arch_rwlock_t * lock)
-+{
-+	int busy;
-+
-+	__asm__ __volatile__(
-+		"1:	lr.w	%1, %0\n"
-+		"	bnez	%1, 1f\n"
-+		"	li	%1, -1\n"
-+		"	sc.w.aq	%1, %1, %0\n"
-+		"	bnez	%1, 1b\n"
-+		"1:\n"
-+		: "+A" (lock->lock), "=&r" (busy)
-+		:: "memory");
-+	
-+	return !busy;
-+}
-+
-+static inline void arch_read_unlock(arch_rwlock_t * lock)
-+{
-+	__asm__ __volatile__(
-+		"amoadd.w.rl x0, %1, %0"
-+		: "+A" (lock->lock)
-+		: "r" (-1)
-+		: "memory");
-+}
-+
-+static inline void arch_write_unlock(arch_rwlock_t * lock)
-+{
-+	__asm__ __volatile__ (
-+		"amoswap.w.rl x0, x0, %0"
-+		: "=A" (lock->lock)
-+		:: "memory");
-+}
-+
-+#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-+#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-+
-+#endif /* _ASM_RISCV_SPINLOCK_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/spinlock_types.h linux-4.6.2.riscv/arch/riscv/include/asm/spinlock_types.h
---- linux-4.6.2/arch/riscv/include/asm/spinlock_types.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/spinlock_types.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,20 @@
-+#ifndef _ASM_RISCV_SPINLOCK_TYPES_H
-+#define _ASM_RISCV_SPINLOCK_TYPES_H
-+
-+#ifndef __LINUX_SPINLOCK_TYPES_H
-+# error "please don't include this file directly"
-+#endif
-+
-+typedef struct {
-+	volatile unsigned int lock;
-+} arch_spinlock_t;
-+
-+#define __ARCH_SPIN_LOCK_UNLOCKED	{ 0 }
-+
-+typedef struct {
-+	volatile unsigned int lock;
-+} arch_rwlock_t;
-+
-+#define __ARCH_RW_LOCK_UNLOCKED		{ 0 }
-+
-+#endif
-diff -Nur linux-4.6.2/arch/riscv/include/asm/string.h linux-4.6.2.riscv/arch/riscv/include/asm/string.h
---- linux-4.6.2/arch/riscv/include/asm/string.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/string.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,17 @@
-+#ifndef _ASM_RISCV_STRING_H
-+#define _ASM_RISCV_STRING_H
-+
-+#ifdef __KERNEL__
-+
-+#include <linux/types.h>
-+#include <linux/linkage.h>
-+
-+#define __HAVE_ARCH_MEMSET
-+extern asmlinkage void *memset(void *, int, size_t);
-+
-+#define __HAVE_ARCH_MEMCPY
-+extern asmlinkage void *memcpy(void *, const void *, size_t);
-+
-+#endif /* __KERNEL__ */
-+
-+#endif /* _ASM_RISCV_STRING_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/switch_to.h linux-4.6.2.riscv/arch/riscv/include/asm/switch_to.h
---- linux-4.6.2/arch/riscv/include/asm/switch_to.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/switch_to.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,57 @@
-+#ifndef _ASM_RISCV_SWITCH_TO_H
-+#define _ASM_RISCV_SWITCH_TO_H
-+
-+#include <asm/processor.h>
-+#include <asm/ptrace.h>
-+#include <asm/csr.h>
-+
-+extern void __fstate_save(struct task_struct *);
-+extern void __fstate_restore(struct task_struct *);
-+
-+static inline void __fstate_clean(struct pt_regs *regs)
-+{
-+	regs->sstatus |= (regs->sstatus & ~(SR_FS)) | SR_FS_CLEAN;
-+}
-+
-+static inline void fstate_save(struct task_struct *task,
-+                               struct pt_regs *regs)
-+{
-+	if ((regs->sstatus & SR_FS) == SR_FS_DIRTY) {
-+		__fstate_save(task);
-+		__fstate_clean(regs);
-+	}
-+}
-+
-+static inline void fstate_restore(struct task_struct *task,
-+                                  struct pt_regs *regs)
-+{
-+	if ((regs->sstatus & SR_FS) != SR_FS_OFF) {
-+		__fstate_restore(task);
-+		__fstate_clean(regs);
-+	}
-+}
-+
-+static inline void __switch_to_aux(struct task_struct *prev,
-+                                   struct task_struct *next)
-+{
-+	struct pt_regs *regs;
-+
-+	regs = task_pt_regs(prev);
-+	if (unlikely(regs->sstatus & SR_SD)) {
-+		fstate_save(prev, regs);
-+	}
-+	fstate_restore(next, task_pt_regs(next));
-+}
-+
-+extern struct task_struct *__switch_to(struct task_struct *,
-+                                       struct task_struct *);
-+
-+#define switch_to(prev, next, last)			\
-+do {							\
-+	struct task_struct *__prev = (prev);		\
-+	struct task_struct *__next = (next);		\
-+	__switch_to_aux(__prev, __next);		\
-+	((last) = __switch_to(__prev, __next));		\
-+} while (0)
-+
-+#endif /* _ASM_RISCV_SWITCH_TO_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/syscall.h linux-4.6.2.riscv/arch/riscv/include/asm/syscall.h
---- linux-4.6.2/arch/riscv/include/asm/syscall.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/syscall.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,90 @@
-+/*
-+ * Copyright (C) 2008-2009 Red Hat, Inc.  All rights reserved.
-+ * Copyright 2010 Tilera Corporation. All Rights Reserved.
-+ * Copyright 2015 Regents of the University of California, Berkeley
-+ *
-+ *   This program is free software; you can redistribute it and/or
-+ *   modify it under the terms of the GNU General Public License
-+ *   as published by the Free Software Foundation, version 2.
-+ *
-+ *   This program is distributed in the hope that it will be useful, but
-+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
-+ *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
-+ *   NON INFRINGEMENT.  See the GNU General Public License for
-+ *   more details.
-+ *
-+ * See asm-generic/syscall.h for descriptions of what we must do here.
-+ */
-+
-+#ifndef _ASM_RISCV_SYSCALL_H
-+#define _ASM_RISCV_SYSCALL_H
-+
-+#include <linux/sched.h>
-+#include <linux/err.h>
-+
-+/* The array of function pointers for syscalls. */
-+extern void *sys_call_table[];
-+
-+/*
-+ * Only the low 32 bits of orig_r0 are meaningful, so we return int.
-+ * This importantly ignores the high bits on 64-bit, so comparisons
-+ * sign-extend the low 32 bits.
-+ */
-+static inline int syscall_get_nr(struct task_struct *task,
-+				 struct pt_regs *regs)
-+{
-+	return regs->a7;
-+}
-+
-+static inline void syscall_set_nr(struct task_struct *task,
-+				  struct pt_regs *regs,
-+				  int sysno)
-+{
-+	regs->a7 = sysno;
-+}
-+
-+static inline void syscall_rollback(struct task_struct *task,
-+				    struct pt_regs *regs)
-+{
-+	/* FIXME: We can't do this... */
-+}
-+
-+static inline long syscall_get_error(struct task_struct *task,
-+				     struct pt_regs *regs)
-+{
-+	unsigned long error = regs->a0;
-+	return IS_ERR_VALUE(error) ? error : 0;
-+}
-+
-+static inline long syscall_get_return_value(struct task_struct *task,
-+					    struct pt_regs *regs)
-+{
-+	return regs->a0;
-+}
-+
-+static inline void syscall_set_return_value(struct task_struct *task,
-+					    struct pt_regs *regs,
-+					    int error, long val)
-+{
-+	regs->a0 = (long) error ?: val;
-+}
-+
-+static inline void syscall_get_arguments(struct task_struct *task,
-+					 struct pt_regs *regs,
-+					 unsigned int i, unsigned int n,
-+					 unsigned long *args)
-+{
-+	BUG_ON(i + n > 6);
-+	memcpy(args, &regs->a0 + i * sizeof(regs->a0), n * sizeof(args[0]));
-+}
-+
-+static inline void syscall_set_arguments(struct task_struct *task,
-+					 struct pt_regs *regs,
-+					 unsigned int i, unsigned int n,
-+					 const unsigned long *args)
-+{
-+	BUG_ON(i + n > 6);
-+	memcpy(&regs->a0 + i * sizeof(regs->a0), args, n * sizeof(regs->a0));
-+}
-+
-+#endif	/* _ASM_TILE_SYSCALL_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/syscalls.h linux-4.6.2.riscv/arch/riscv/include/asm/syscalls.h
---- linux-4.6.2/arch/riscv/include/asm/syscalls.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/syscalls.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,12 @@
-+#ifndef _ASM_RISCV_SYSCALLS_H
-+#define _ASM_RISCV_SYSCALLS_H
-+
-+#include <linux/linkage.h>
-+
-+#include <asm-generic/syscalls.h>
-+
-+/* kernel/sys_riscv.c */
-+asmlinkage long sys_sysriscv(unsigned long, unsigned long,
-+	unsigned long, unsigned long);
-+
-+#endif /* _ASM_RISCV_SYSCALLS_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/thread_info.h linux-4.6.2.riscv/arch/riscv/include/asm/thread_info.h
---- linux-4.6.2/arch/riscv/include/asm/thread_info.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/thread_info.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,89 @@
-+#ifndef _ASM_RISCV_THREAD_INFO_H
-+#define _ASM_RISCV_THREAD_INFO_H
-+
-+#ifdef __KERNEL__
-+
-+#include <asm/page.h>
-+#include <linux/const.h>
-+
-+/* thread information allocation */
-+#define THREAD_SIZE_ORDER 	(1)
-+#define THREAD_SIZE 		(PAGE_SIZE << THREAD_SIZE_ORDER)
-+
-+#ifndef __ASSEMBLY__
-+
-+#include <asm/processor.h>
-+#include <asm/csr.h>
-+
-+typedef unsigned long mm_segment_t;
-+
-+/*
-+ * low level task data that entry.S needs immediate access to
-+ * - this struct should fit entirely inside of one cache line
-+ * - this struct resides at the bottom of the supervisor stack
-+ * - if the members of this struct changes, the assembly constants
-+ *   in asm-offsets.c must be updated accordingly
-+ */
-+struct thread_info {
-+	struct task_struct	*task;		/* main task structure */
-+	unsigned long		flags;		/* low level flags */
-+	__u32			cpu;		/* current CPU */
-+	int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
-+	mm_segment_t		addr_limit;
-+};
-+
-+/*
-+ * macros/functions for gaining access to the thread information structure
-+ *
-+ * preempt_count needs to be 1 initially, until the scheduler is functional.
-+ */
-+#define INIT_THREAD_INFO(tsk)			\
-+{						\
-+	.task		= &tsk,			\
-+	.flags		= 0,			\
-+	.cpu		= 0,			\
-+	.preempt_count	= INIT_PREEMPT_COUNT,	\
-+	.addr_limit	= KERNEL_DS,		\
-+}
-+
-+#define init_thread_info	(init_thread_union.thread_info)
-+#define init_stack		(init_thread_union.stack)
-+
-+/*
-+ * Pointer to the thread_info struct of the current process
-+ * Assumes that the kernel mode stack (thread_union) is THREAD_SIZE-aligned
-+ */
-+static inline struct thread_info *current_thread_info(void)
-+{
-+	register unsigned long sp __asm__ ("sp");
-+	return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
-+}
-+
-+#endif /* !__ASSEMBLY__ */
-+
-+/*
-+ * thread information flags
-+ * - these are process state flags that various assembly files may need to
-+ *   access
-+ * - pending work-to-be-done flags are in lowest half-word
-+ * - other flags in upper half-word(s)
-+ */
-+#define TIF_SYSCALL_TRACE	0	/* syscall trace active */
-+#define TIF_NOTIFY_RESUME	1	/* callback before returning to user */
-+#define TIF_SIGPENDING		2	/* signal pending */
-+#define TIF_NEED_RESCHED	3	/* rescheduling necessary */
-+#define TIF_RESTORE_SIGMASK	4	/* restore signal mask in do_signal() */
-+#define TIF_MEMDIE		5	/* is terminating due to OOM killer */
-+#define TIF_SYSCALL_TRACEPOINT  6       /* syscall tracepoint instrumentation */
-+
-+#define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
-+#define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
-+#define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
-+#define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
-+
-+#define _TIF_WORK_MASK \
-+	(_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | _TIF_NEED_RESCHED)
-+
-+#endif /* __KERNEL__ */
-+
-+#endif /* _ASM_RISCV_THREAD_INFO_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/timex.h linux-4.6.2.riscv/arch/riscv/include/asm/timex.h
---- linux-4.6.2/arch/riscv/include/asm/timex.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/timex.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,39 @@
-+#ifndef _ASM_RISCV_TIMEX_H
-+#define _ASM_RISCV_TIMEX_H
-+
-+#include <asm/param.h>
-+
-+#define CLOCK_TICK_RATE (HZ * 100UL)
-+
-+typedef unsigned long cycles_t;
-+
-+static inline cycles_t get_cycles(void)
-+{
-+#if __riscv_xlen >= 64
-+	cycles_t n;
-+	__asm__ __volatile__ (
-+		"rdtime %0"
-+		: "=r" (n));
-+	return n;
-+#else
-+	u32 lo, hi, tmp;
-+	__asm__ __volatile__ (
-+		"1:\n"
-+		"rdtimeh %0\n"
-+		"rdtime %1\n"
-+		"rdtimeh %2\n"
-+		"bne %0, %2, 1b"
-+		: "=&r" (hi), "=&r" (lo), "=&r" (tmp));
-+	return ((u64)hi << 32) | lo;
-+#endif
-+}
-+
-+#define ARCH_HAS_READ_CURRENT_TIMER
-+
-+static inline int read_current_timer(unsigned long *timer_val)
-+{
-+	*timer_val = get_cycles();
-+	return 0;
-+}
-+
-+#endif /* _ASM_RISCV_TIMEX_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/tlbflush.h linux-4.6.2.riscv/arch/riscv/include/asm/tlbflush.h
---- linux-4.6.2/arch/riscv/include/asm/tlbflush.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/tlbflush.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,84 @@
-+#ifndef _ASM_RISCV_TLBFLUSH_H
-+#define _ASM_RISCV_TLBFLUSH_H
-+
-+#ifdef CONFIG_MMU
-+
-+#include <linux/mm.h>
-+#include <linux/bug.h>
-+#include <asm/csr.h>
-+
-+/* Flush entire local TLB */
-+static inline void local_flush_tlb_all(void)
-+{
-+	__asm__ __volatile__ ("sfence.vm");
-+}
-+
-+/* Flush one page from local TLB */
-+static inline void local_flush_tlb_page(unsigned long addr)
-+{
-+	__asm__ __volatile__ ("sfence.vm %0" : : "r" (addr));
-+}
-+
-+#ifndef CONFIG_SMP
-+
-+#define flush_tlb_all() local_flush_tlb_all()
-+#define flush_tlb_page(vma, addr) local_flush_tlb_page(addr)
-+#define flush_tlb_range(vma, start, end) local_flush_tlb_all()
-+
-+#else /* CONFIG_SMP */
-+
-+#include <asm/sbi.h>
-+
-+#define flush_tlb_all() sbi_remote_sfence_vm(0, 0)
-+#define flush_tlb_page(vma, addr) flush_tlb_range(vma, (addr), (addr) + 1)
-+#define flush_tlb_range(vma, start, end) \
-+	sbi_remote_sfence_vm_range(0, 0, (start), (end) - (start))
-+
-+#endif /* CONFIG_SMP */
-+
-+/* Flush the TLB entries of the specified mm context */
-+static inline void flush_tlb_mm(struct mm_struct *mm)
-+{
-+	flush_tlb_all();
-+}
-+
-+/* Flush a range of kernel pages */
-+static inline void flush_tlb_kernel_range(unsigned long start,
-+	unsigned long end)
-+{
-+	flush_tlb_all();
-+}
-+
-+#else /* !CONFIG_MMU */
-+
-+static inline void flush_tlb_all(void)
-+{
-+	BUG();
-+}
-+
-+static inline void flush_tlb_mm(struct mm_struct *mm)
-+{
-+	BUG();
-+}
-+
-+static inline void flush_tlb_page(struct vm_area_struct *vma,
-+	unsigned long addr)
-+{
-+	BUG();
-+}
-+
-+static inline void flush_tlb_range(struct vm_area_struct *vma,
-+	unsigned long start, unsigned long end)
-+{
-+	BUG();
-+}
-+
-+static inline void flush_tlb_kernel_range(unsigned long start,
-+	unsigned long end)
-+{
-+	BUG();
-+}
-+
-+#endif /* CONFIG_MMU */
-+
-+#endif /* _ASM_RISCV_TLBFLUSH_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/tlb.h linux-4.6.2.riscv/arch/riscv/include/asm/tlb.h
---- linux-4.6.2/arch/riscv/include/asm/tlb.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/tlb.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,11 @@
-+#ifndef _ASM_RISCV_TLB_H
-+#define _ASM_RISCV_TLB_H
-+
-+#include <asm-generic/tlb.h>
-+
-+static inline void tlb_flush(struct mmu_gather *tlb)
-+{
-+	flush_tlb_mm(tlb->mm);
-+}
-+
-+#endif /* _ASM_RISCV_TLB_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/uaccess.h linux-4.6.2.riscv/arch/riscv/include/asm/uaccess.h
---- linux-4.6.2/arch/riscv/include/asm/uaccess.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/uaccess.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,460 @@
-+#ifndef _ASM_RISCV_UACCESS_H
-+#define _ASM_RISCV_UACCESS_H
-+
-+/*
-+ * User space memory access functions
-+ */
-+#include <linux/errno.h>
-+#include <linux/compiler.h>
-+#include <linux/thread_info.h>
-+#include <asm/byteorder.h>
-+#include <asm/asm.h>
-+
-+#ifdef CONFIG_RV_PUM
-+#define __enable_user_access()						\
-+	__asm__ __volatile__ ("csrc sstatus, %0" : : "r" (SR_PUM))
-+#define __disable_user_access()						\
-+	__asm__ __volatile__ ("csrs sstatus, %0" : : "r" (SR_PUM))
-+#else
-+#define __enable_user_access()
-+#define __disable_user_access()
-+#endif
-+
-+/*
-+ * The fs value determines whether argument validity checking should be
-+ * performed or not.  If get_fs() == USER_DS, checking is performed, with
-+ * get_fs() == KERNEL_DS, checking is bypassed.
-+ *
-+ * For historical reasons, these macros are grossly misnamed.
-+ */
-+
-+#define KERNEL_DS	(~0UL)
-+#define USER_DS		(TASK_SIZE)
-+
-+#define get_ds()	(KERNEL_DS)
-+#define get_fs()	(current_thread_info()->addr_limit)
-+
-+static inline void set_fs(mm_segment_t fs)
-+{
-+	current_thread_info()->addr_limit = fs;
-+}
-+
-+#define segment_eq(a, b) ((a) == (b))
-+
-+#define user_addr_max()	(get_fs())
-+
-+
-+#define VERIFY_READ	0
-+#define VERIFY_WRITE	1
-+
-+/**
-+ * access_ok: - Checks if a user space pointer is valid
-+ * @type: Type of access: %VERIFY_READ or %VERIFY_WRITE.  Note that
-+ *        %VERIFY_WRITE is a superset of %VERIFY_READ - if it is safe
-+ *        to write to a block, it is always safe to read from it.
-+ * @addr: User space pointer to start of block to check
-+ * @size: Size of block to check
-+ *
-+ * Context: User context only.  This function may sleep.
-+ *
-+ * Checks if a pointer to a block of memory in user space is valid.
-+ *
-+ * Returns true (nonzero) if the memory block may be valid, false (zero)
-+ * if it is definitely invalid.
-+ *
-+ * Note that, depending on architecture, this function probably just
-+ * checks that the pointer is in the user space range - after calling
-+ * this function, memory access functions may still return -EFAULT.
-+ */
-+#define access_ok(type, addr, size) ({					\
-+	__chk_user_ptr(addr);						\
-+	likely(__access_ok((unsigned long __force)(addr), (size)));	\
-+})
-+
-+/* Ensure that the range [addr, addr+size) is within the process's
-+ * address space
-+ */
-+static inline int __access_ok(unsigned long addr, unsigned long size)
-+{
-+	const mm_segment_t fs = get_fs();
-+	return (size <= fs) && (addr <= (fs - size));
-+}
-+
-+/*
-+ * The exception table consists of pairs of addresses: the first is the
-+ * address of an instruction that is allowed to fault, and the second is
-+ * the address at which the program should continue.  No registers are
-+ * modified, so it is entirely up to the continuation code to figure out
-+ * what to do.
-+ *
-+ * All the routines below use bits of fixup code that are out of line
-+ * with the main instruction path.  This means when everything is well,
-+ * we don't even have to jump over them.  Further, they do not intrude
-+ * on our cache or tlb entries.
-+ */
-+
-+struct exception_table_entry {
-+	unsigned long insn, fixup;
-+};
-+
-+extern int fixup_exception(struct pt_regs *);
-+
-+#if defined(__LITTLE_ENDIAN)
-+#define __MSW	1
-+#define __LSW	0
-+#elif defined(__BIG_ENDIAN)
-+#define __MSW	0
-+#define	__LSW	1
-+#else
-+#error "Unknown endianness"
-+#endif
-+
-+/*
-+ * The "__xxx" versions of the user access functions do not verify the address
-+ * space - it must have been done previously with a separate "access_ok()"
-+ * call.
-+ */
-+
-+#ifdef CONFIG_MMU
-+#define __get_user_asm(insn, x, ptr, err)			\
-+do {								\
-+	uintptr_t __tmp;					\
-+	__enable_user_access();					\
-+	__asm__ __volatile__ (					\
-+		"1:\n"						\
-+		"	" insn " %1, %3\n"			\
-+		"2:\n"						\
-+		"	.section .fixup,\"ax\"\n"		\
-+		"	.balign 4\n"				\
-+		"3:\n"						\
-+		"	li %0, %4\n"				\
-+		"	li %1, 0\n"				\
-+		"	jump 2b, %2\n"				\
-+		"	.previous\n"				\
-+		"	.section __ex_table,\"a\"\n"		\
-+		"	.balign " SZPTR "\n"			\
-+		"	" PTR " 1b, 3b\n"			\
-+		"	.previous"				\
-+		: "+r" (err), "=&r" (x), "=r" (__tmp)		\
-+		: "m" (*(ptr)), "i" (-EFAULT));			\
-+	__disable_user_access();				\
-+} while (0)
-+#else /* !CONFIG_MMU */
-+#define __get_user_asm(insn, x, ptr, err)			\
-+	__asm__ __volatile__ (					\
-+		insn " %0, %1"					\
-+		: "=r" (x)					\
-+		: "m" (*(ptr)))
-+#endif /* CONFIG_MMU */
-+
-+
-+#ifdef CONFIG_64BIT
-+#define __get_user_8(x, ptr, err) \
-+	__get_user_asm("ld", x, ptr, err)
-+#else /* !CONFIG_64BIT */
-+#ifdef CONFIG_MMU
-+#define __get_user_8(x, ptr, err)				\
-+do {								\
-+	u32 __user *__ptr = (u32 __user *)(ptr);		\
-+	u32 __lo, __hi;						\
-+	uintptr_t __tmp;					\
-+	__enable_user_access();					\
-+	__asm__ __volatile__ (					\
-+		"1:\n"						\
-+		"	lw %1, %4\n"				\
-+		"2:\n"						\
-+		"	lw %2, %5\n"				\
-+		"3:\n"						\
-+		"	.section .fixup,\"ax\"\n"		\
-+		"	.balign 4\n"				\
-+		"4:\n"						\
-+		"	li %0, %6\n"				\
-+		"	li %1, 0\n"				\
-+		"	li %2, 0\n"				\
-+		"	jump 3b, %3\n"				\
-+		"	.previous\n"				\
-+		"	.section __ex_table,\"a\"\n"		\
-+		"	.balign " SZPTR "\n"			\
-+		"	" PTR " 1b, 4b\n"			\
-+		"	" PTR " 2b, 4b\n"			\
-+		"	.previous"				\
-+		: "+r" (err), "=&r" (__lo), "=r" (__hi),	\
-+			"=r" (__tmp)				\
-+		: "m" (__ptr[__LSW]), "m" (__ptr[__MSW]),	\
-+			"i" (-EFAULT));				\
-+	__disable_user_access();				\
-+	(x) = (__typeof__(x))((__typeof__((x)-(x)))(		\
-+		(((u64)__hi << 32) | __lo)));			\
-+} while (0)
-+#else /* !CONFIG_MMU */
-+#define __get_user_8(x, ptr, err) \
-+	(x) = (__typeof__(x))(*((u64 __user *)(ptr)))
-+#endif /* CONFIG_MMU */
-+#endif /* CONFIG_64BIT */
-+
-+
-+/**
-+ * __get_user: - Get a simple variable from user space, with less checking.
-+ * @x:   Variable to store result.
-+ * @ptr: Source address, in user space.
-+ *
-+ * Context: User context only.  This function may sleep.
-+ *
-+ * This macro copies a single simple variable from user space to kernel
-+ * space.  It supports simple types like char and int, but not larger
-+ * data types like structures or arrays.
-+ *
-+ * @ptr must have pointer-to-simple-variable type, and the result of
-+ * dereferencing @ptr must be assignable to @x without a cast.
-+ *
-+ * Caller must check the pointer with access_ok() before calling this
-+ * function.
-+ *
-+ * Returns zero on success, or -EFAULT on error.
-+ * On error, the variable @x is set to zero.
-+ */
-+#define __get_user(x, ptr)					\
-+({								\
-+	register int __gu_err = 0;				\
-+	const __typeof__(*(ptr)) __user *__gu_ptr = (ptr);	\
-+	__chk_user_ptr(__gu_ptr);				\
-+	switch (sizeof(*__gu_ptr)) {				\
-+	case 1:							\
-+		__get_user_asm("lb", (x), __gu_ptr, __gu_err);	\
-+		break;						\
-+	case 2:							\
-+		__get_user_asm("lh", (x), __gu_ptr, __gu_err);	\
-+		break;						\
-+	case 4:							\
-+		__get_user_asm("lw", (x), __gu_ptr, __gu_err);	\
-+		break;						\
-+	case 8:							\
-+		__get_user_8((x), __gu_ptr, __gu_err);	\
-+		break;						\
-+	default:						\
-+		BUILD_BUG();					\
-+	}							\
-+	__gu_err;						\
-+})
-+
-+/**
-+ * get_user: - Get a simple variable from user space.
-+ * @x:   Variable to store result.
-+ * @ptr: Source address, in user space.
-+ *
-+ * Context: User context only.  This function may sleep.
-+ *
-+ * This macro copies a single simple variable from user space to kernel
-+ * space.  It supports simple types like char and int, but not larger
-+ * data types like structures or arrays.
-+ *
-+ * @ptr must have pointer-to-simple-variable type, and the result of
-+ * dereferencing @ptr must be assignable to @x without a cast.
-+ *
-+ * Returns zero on success, or -EFAULT on error.
-+ * On error, the variable @x is set to zero.
-+ */
-+#define get_user(x, ptr)					\
-+({								\
-+	const __typeof__(*(ptr)) __user *__p = (ptr);		\
-+	might_fault();						\
-+	access_ok(VERIFY_READ, __p, sizeof(*__p)) ?		\
-+		__get_user((x), __p) :				\
-+		((x) = 0, -EFAULT);				\
-+})
-+
-+
-+#ifdef CONFIG_MMU
-+#define __put_user_asm(insn, x, ptr, err)			\
-+do {								\
-+	uintptr_t __tmp;					\
-+	__typeof__(*(ptr)) __x = x;				\
-+	__enable_user_access();					\
-+	__asm__ __volatile__ (					\
-+		"1:\n"						\
-+		"	" insn " %z3, %2\n"			\
-+		"2:\n"						\
-+		"	.section .fixup,\"ax\"\n"		\
-+		"	.balign 4\n"				\
-+		"3:\n"						\
-+		"	li %0, %4\n"				\
-+		"	jump 2b, %1\n"				\
-+		"	.previous\n"				\
-+		"	.section __ex_table,\"a\"\n"		\
-+		"	.balign " SZPTR "\n"			\
-+		"	" PTR " 1b, 3b\n"			\
-+		"	.previous"				\
-+		: "+r" (err), "=r" (__tmp), "=m" (*(ptr))	\
-+		: "rJ" (__x), "i" (-EFAULT));			\
-+	__disable_user_access();				\
-+} while (0)
-+#else /* !CONFIG_MMU */
-+#define __put_user_asm(insn, x, ptr, err)			\
-+	__asm__ __volatile__ (					\
-+		insn " %z1, %0"					\
-+		: "=m" (*(ptr))					\
-+		: "rJ" ((__typeof__(*(ptr))) x))
-+#endif /* CONFIG_MMU */
-+
-+
-+#ifdef CONFIG_64BIT
-+#define __put_user_8(x, ptr, err) \
-+	__put_user_asm("sd", x, ptr, err)
-+#else /* !CONFIG_64BIT */
-+#ifdef CONFIG_MMU
-+#define __put_user_8(x, ptr, err)				\
-+do {								\
-+	u32 __user *__ptr = (u32 __user *)(ptr);		\
-+	u64 __x = (__typeof__((x)-(x)))(x);	 		\
-+	uintptr_t __tmp;					\
-+	__enable_user_access();					\
-+	__asm__ __volatile__ (					\
-+		"1:\n"						\
-+		"	sw %z4, %2\n"				\
-+		"2:\n"						\
-+		"	sw %z5, %3\n"				\
-+		"3:\n"						\
-+		"	.section .fixup,\"ax\"\n"		\
-+		"	.balign 4\n"				\
-+		"4:\n"						\
-+		"	li %0, %6\n"				\
-+		"	jump 2b, %1\n"				\
-+		"	.previous\n"				\
-+		"	.section __ex_table,\"a\"\n"		\
-+		"	.balign " SZPTR "\n"			\
-+		"	" PTR " 1b, 4b\n"			\
-+		"	" PTR " 2b, 4b\n"			\
-+		"	.previous"				\
-+		: "+r" (err), "=r" (__tmp),			\
-+			"=m" (__ptr[__LSW]),			\
-+			"=m" (__ptr[__MSW])			\
-+		: "rJ" (__x), "rJ" (__x >> 32), "i" (-EFAULT));	\
-+	__disable_user_access();				\
-+} while (0)
-+#else /* !CONFIG_MMU */
-+#define __put_user_8(x, ptr, err)				\
-+	*((u64 __user *)(ptr)) = (u64)(x)
-+#endif /* CONFIG_MMU */
-+#endif /* CONFIG_64BIT */
-+
-+
-+/**
-+ * __put_user: - Write a simple value into user space, with less checking.
-+ * @x:   Value to copy to user space.
-+ * @ptr: Destination address, in user space.
-+ *
-+ * Context: User context only.  This function may sleep.
-+ *
-+ * This macro copies a single simple value from kernel space to user
-+ * space.  It supports simple types like char and int, but not larger
-+ * data types like structures or arrays.
-+ *
-+ * @ptr must have pointer-to-simple-variable type, and @x must be assignable
-+ * to the result of dereferencing @ptr.
-+ *
-+ * Caller must check the pointer with access_ok() before calling this
-+ * function.
-+ *
-+ * Returns zero on success, or -EFAULT on error.
-+ */
-+#define __put_user(x, ptr)					\
-+({								\
-+	register int __pu_err = 0;				\
-+	__typeof__(*(ptr)) __user *__gu_ptr = (ptr);		\
-+	__chk_user_ptr(__gu_ptr);				\
-+	switch (sizeof(*__gu_ptr)) {				\
-+	case 1:							\
-+		__put_user_asm("sb", (x), __gu_ptr, __pu_err);	\
-+		break;						\
-+	case 2:							\
-+		__put_user_asm("sh", (x), __gu_ptr, __pu_err);	\
-+		break;						\
-+	case 4:							\
-+		__put_user_asm("sw", (x), __gu_ptr, __pu_err);	\
-+		break;						\
-+	case 8:							\
-+		__put_user_8((x), __gu_ptr, __pu_err);	\
-+		break;						\
-+	default:						\
-+		BUILD_BUG();					\
-+	}							\
-+	__pu_err;						\
-+})
-+
-+/**
-+ * put_user: - Write a simple value into user space.
-+ * @x:   Value to copy to user space.
-+ * @ptr: Destination address, in user space.
-+ *
-+ * Context: User context only.  This function may sleep.
-+ *
-+ * This macro copies a single simple value from kernel space to user
-+ * space.  It supports simple types like char and int, but not larger
-+ * data types like structures or arrays.
-+ *
-+ * @ptr must have pointer-to-simple-variable type, and @x must be assignable
-+ * to the result of dereferencing @ptr.
-+ *
-+ * Returns zero on success, or -EFAULT on error.
-+ */
-+#define put_user(x, ptr)					\
-+({								\
-+	__typeof__(*(ptr)) __user *__p = (ptr);			\
-+	might_fault();						\
-+	access_ok(VERIFY_WRITE, __p, sizeof(*__p)) ?		\
-+		__put_user((x), __p) :				\
-+		-EFAULT;					\
-+})
-+
-+
-+extern unsigned long __must_check __copy_user(void __user *to,
-+	const void __user *from, unsigned long n);
-+
-+static inline long __must_check __copy_from_user(void *to,
-+		const void __user *from, unsigned long n)
-+{
-+	return __copy_user(to, from, n);
-+}
-+
-+static inline long __must_check __copy_to_user(void __user *to,
-+		const void *from, unsigned long n)
-+{
-+	return __copy_user(to, from, n);
-+}
-+
-+#define __copy_from_user_inatomic(to, from, n) \
-+	__copy_from_user((to), (from), (n))
-+#define __copy_to_user_inatomic(to, from, n) \
-+	__copy_to_user((to), (from), (n))
-+
-+static inline long copy_from_user(void *to,
-+		const void __user * from, unsigned long n)
-+{
-+	might_fault();
-+	return access_ok(VERIFY_READ, from, n) ?
-+		__copy_from_user(to, from, n) : n;
-+}
-+
-+static inline long copy_to_user(void __user *to,
-+		const void *from, unsigned long n)
-+{
-+	might_fault();
-+	return access_ok(VERIFY_WRITE, to, n) ?
-+		__copy_to_user(to, from, n) : n;
-+}
-+
-+extern long strncpy_from_user(char *dest, const char __user *src, long count);
-+
-+extern long __must_check strlen_user(const char __user *str);
-+extern long __must_check strnlen_user(const char __user *str, long n);
-+
-+extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n);
-+
-+static inline unsigned long __must_check clear_user(void __user *to, unsigned long n)
-+{
-+	might_fault();
-+	return access_ok(VERIFY_WRITE, to, n) ?
-+		__clear_user(to, n) : n;
-+}
-+
-+#endif /* _ASM_RISCV_UACCESS_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/unistd.h linux-4.6.2.riscv/arch/riscv/include/asm/unistd.h
---- linux-4.6.2/arch/riscv/include/asm/unistd.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/unistd.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,3 @@
-+#define __ARCH_HAVE_MMU
-+#define __ARCH_WANT_SYS_CLONE
-+#include <uapi/asm/unistd.h>
-diff -Nur linux-4.6.2/arch/riscv/include/asm/vdso.h linux-4.6.2.riscv/arch/riscv/include/asm/vdso.h
---- linux-4.6.2/arch/riscv/include/asm/vdso.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/vdso.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,15 @@
-+#ifndef _ASM_RISCV_VDSO_H
-+#define _ASM_RISCV_VDSO_H
-+
-+#include <linux/types.h>
-+
-+struct vdso_data {
-+};
-+
-+#define VDSO_SYMBOL(base, name)					\
-+({								\
-+	extern const char __vdso_##name[];			\
-+	(void __user *)((unsigned long)(base) + __vdso_##name);	\
-+})
-+
-+#endif /* _ASM_RISCV_VDSO_H */
-diff -Nur linux-4.6.2/arch/riscv/include/asm/word-at-a-time.h linux-4.6.2.riscv/arch/riscv/include/asm/word-at-a-time.h
---- linux-4.6.2/arch/riscv/include/asm/word-at-a-time.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/asm/word-at-a-time.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,42 @@
-+#ifndef _ASM_RISCV_WORD_AT_A_TIME_H
-+#define _ASM_RISCV_WORD_AT_A_TIME_H
-+
-+/* Derived from arch/x86/include/asm/word-at-a-time.h */
-+
-+#include <linux/kernel.h>
-+
-+struct word_at_a_time {
-+	const unsigned long one_bits, high_bits;
-+};
-+
-+#define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
-+
-+static inline unsigned long has_zero(unsigned long val,
-+	unsigned long *bits, const struct word_at_a_time *c)
-+{
-+	unsigned long mask = ((val - c->one_bits) & ~val) & c->high_bits;
-+	*bits = mask;
-+	return mask;
-+}
-+
-+static inline unsigned long prep_zero_mask(unsigned long val,
-+	unsigned long bits, const struct word_at_a_time *c)
-+{
-+	return bits;
-+}
-+
-+static inline unsigned long create_zero_mask(unsigned long bits)
-+{
-+	bits = (bits - 1) & ~bits;
-+	return bits >> 7;
-+}
-+
-+static inline unsigned long find_zero(unsigned long mask)
-+{
-+	return fls64(mask) >> 3;
-+}
-+
-+/* The mask we created is directly usable as a bytemask */
-+#define zero_bytemask(mask) (mask)
-+
-+#endif /* _ASM_RISCV_WORD_AT_A_TIME_H */
-diff -Nur linux-4.6.2/arch/riscv/include/uapi/asm/auxvec.h linux-4.6.2.riscv/arch/riscv/include/uapi/asm/auxvec.h
---- linux-4.6.2/arch/riscv/include/uapi/asm/auxvec.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/uapi/asm/auxvec.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,7 @@
-+#ifndef _UAPI_ASM_RISCV_AUXVEC_H
-+#define _UAPI_ASM_RISCV_AUXVEC_H
-+
-+/* vDSO location */
-+#define AT_SYSINFO_EHDR 33
-+
-+#endif /* _UAPI_ASM_RISCV_AUXVEC_H */
-diff -Nur linux-4.6.2/arch/riscv/include/uapi/asm/bitsperlong.h linux-4.6.2.riscv/arch/riscv/include/uapi/asm/bitsperlong.h
---- linux-4.6.2/arch/riscv/include/uapi/asm/bitsperlong.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/uapi/asm/bitsperlong.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,8 @@
-+#ifndef _UAPI_ASM_RISCV_BITSPERLONG_H
-+#define _UAPI_ASM_RISCV_BITSPERLONG_H
-+
-+#define __BITS_PER_LONG (__SIZEOF_POINTER__ * 8)
-+
-+#include <asm-generic/bitsperlong.h>
-+
-+#endif /* _UAPI_ASM_RISCV_BITSPERLONG_H */
-diff -Nur linux-4.6.2/arch/riscv/include/uapi/asm/byteorder.h linux-4.6.2.riscv/arch/riscv/include/uapi/asm/byteorder.h
---- linux-4.6.2/arch/riscv/include/uapi/asm/byteorder.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/uapi/asm/byteorder.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,6 @@
-+#ifndef _UAPI_ASM_RISCV_BYTEORDER_H
-+#define _UAPI_ASM_RISCV_BYTEORDER_H
-+
-+#include <linux/byteorder/little_endian.h>
-+
-+#endif /* _UAPI_ASM_RISCV_BYTEORDER_H */
-diff -Nur linux-4.6.2/arch/riscv/include/uapi/asm/elf.h linux-4.6.2.riscv/arch/riscv/include/uapi/asm/elf.h
---- linux-4.6.2/arch/riscv/include/uapi/asm/elf.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/uapi/asm/elf.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,64 @@
-+#ifndef _UAPI_ASM_ELF_H
-+#define _UAPI_ASM_ELF_H
-+
-+#include <asm/ptrace.h>
-+
-+/* ELF register definitions */
-+typedef unsigned long elf_greg_t;
-+typedef struct user_regs_struct elf_gregset_t;
-+#define ELF_NGREG (sizeof(elf_gregset_t) / sizeof(elf_greg_t))
-+
-+typedef struct user_fpregs_struct elf_fpregset_t;
-+
-+
-+/*
-+ * RISC-V relocation types
-+ */
-+
-+/* Relocation types used by the dynamic linker */
-+#define R_RISCV_NONE		0
-+#define R_RISCV_32		1
-+#define R_RISCV_64		2
-+#define R_RISCV_RELATIVE	3
-+#define R_RISCV_COPY		4
-+#define R_RISCV_JUMP_SLOT	5
-+#define R_RISCV_TLS_DTPMOD32	6
-+#define R_RISCV_TLS_DTPMOD64	7
-+#define R_RISCV_TLS_DTPREL32	8
-+#define R_RISCV_TLS_DTPREL64	9
-+#define R_RISCV_TLS_TPREL32	10
-+#define R_RISCV_TLS_TPREL64	11
-+
-+/* Relocation types not used by the dynamic linker */
-+#define R_RISCV_BRANCH		16
-+#define R_RISCV_JAL		17
-+#define R_RISCV_CALL		18
-+#define R_RISCV_CALL_PLT	19
-+#define R_RISCV_GOT_HI20	20
-+#define R_RISCV_TLS_GOT_HI20	21
-+#define R_RISCV_TLS_GD_HI20	22
-+#define R_RISCV_PCREL_HI20	23
-+#define R_RISCV_PCREL_LO12_I	24
-+#define R_RISCV_PCREL_LO12_S	25
-+#define R_RISCV_HI20		26
-+#define R_RISCV_LO12_I		27
-+#define R_RISCV_LO12_S		28
-+#define R_RISCV_TPREL_HI20	29
-+#define R_RISCV_TPREL_LO12_I	30
-+#define R_RISCV_TPREL_LO12_S	31
-+#define R_RISCV_TPREL_ADD	32
-+#define R_RISCV_ADD8		33
-+#define R_RISCV_ADD16		34
-+#define R_RISCV_ADD32		35
-+#define R_RISCV_ADD64		36
-+#define R_RISCV_SUB8		37
-+#define R_RISCV_SUB16		38
-+#define R_RISCV_SUB32		39
-+#define R_RISCV_SUB64		40
-+#define R_RISCV_GNU_VTINHERIT	41
-+#define R_RISCV_GNU_VTENTRY	42
-+#define R_RISCV_ALIGN		43
-+#define R_RISCV_RVC_BRANCH	44
-+#define R_RISCV_RVC_JUMP	45
-+
-+#endif /* _UAPI_ASM_ELF_H */
-diff -Nur linux-4.6.2/arch/riscv/include/uapi/asm/Kbuild linux-4.6.2.riscv/arch/riscv/include/uapi/asm/Kbuild
---- linux-4.6.2/arch/riscv/include/uapi/asm/Kbuild	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/uapi/asm/Kbuild	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,10 @@
-+# UAPI Header export list
-+include include/uapi/asm-generic/Kbuild.asm
-+
-+header-y += auxvec.h
-+header-y += bitsperlong.h
-+header-y += byteorder.h
-+header-y += ptrace.h
-+header-y += sigcontext.h
-+header-y += siginfo.h
-+header-y += unistd.h
-diff -Nur linux-4.6.2/arch/riscv/include/uapi/asm/ptrace.h linux-4.6.2.riscv/arch/riscv/include/uapi/asm/ptrace.h
---- linux-4.6.2/arch/riscv/include/uapi/asm/ptrace.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/uapi/asm/ptrace.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,55 @@
-+#ifndef _UAPI_ASM_RISCV_PTRACE_H
-+#define _UAPI_ASM_RISCV_PTRACE_H
-+
-+#ifndef __ASSEMBLY__
-+
-+#include <linux/types.h>
-+
-+/* User-mode register state for core dumps, ptrace, sigcontext
-+ *
-+ * This decouples struct pt_regs from the userspace ABI.
-+ * struct user_regs_struct must form a prefix of struct pt_regs.
-+ */
-+struct user_regs_struct {
-+	unsigned long pc;
-+	unsigned long ra;
-+	unsigned long sp;
-+	unsigned long gp;
-+	unsigned long tp;
-+	unsigned long t0;
-+	unsigned long t1;
-+	unsigned long t2;
-+	unsigned long s0;
-+	unsigned long s1;
-+	unsigned long a0;
-+	unsigned long a1;
-+	unsigned long a2;
-+	unsigned long a3;
-+	unsigned long a4;
-+	unsigned long a5;
-+	unsigned long a6;
-+	unsigned long a7;
-+	unsigned long s2;
-+	unsigned long s3;
-+	unsigned long s4;
-+	unsigned long s5;
-+	unsigned long s6;
-+	unsigned long s7;
-+	unsigned long s8;
-+	unsigned long s9;
-+	unsigned long s10;
-+	unsigned long s11;
-+	unsigned long t3;
-+	unsigned long t4;
-+	unsigned long t5;
-+	unsigned long t6;
-+};
-+
-+struct user_fpregs_struct {
-+	__u64 f[32];
-+	__u32 fcsr;
-+};
-+
-+#endif /* __ASSEMBLY__ */
-+
-+#endif /* _UAPI_ASM_RISCV_PTRACE_H */
-diff -Nur linux-4.6.2/arch/riscv/include/uapi/asm/sigcontext.h linux-4.6.2.riscv/arch/riscv/include/uapi/asm/sigcontext.h
---- linux-4.6.2/arch/riscv/include/uapi/asm/sigcontext.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/uapi/asm/sigcontext.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,16 @@
-+#ifndef _UAPI_ASM_RISCV_SIGCONTEXT_H
-+#define _UAPI_ASM_RISCV_SIGCONTEXT_H
-+
-+#include <asm/ptrace.h>
-+
-+/* Signal context structure
-+ *
-+ * This contains the context saved before a signal handler is invoked;
-+ * it is restored by sys_sigreturn / sys_rt_sigreturn.
-+ */
-+struct sigcontext {
-+	struct user_regs_struct sc_regs;
-+	struct user_fpregs_struct sc_fpregs;
-+};
-+
-+#endif /* _UAPI_ASM_RISCV_SIGCONTEXT_H */
-diff -Nur linux-4.6.2/arch/riscv/include/uapi/asm/siginfo.h linux-4.6.2.riscv/arch/riscv/include/uapi/asm/siginfo.h
---- linux-4.6.2/arch/riscv/include/uapi/asm/siginfo.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/uapi/asm/siginfo.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,24 @@
-+/*
-+ * Copyright (C) 2012 ARM Ltd.
-+ * Copyright (C) 2016 SiFive, Inc.
-+ *
-+ * 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.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
-+ */
-+#ifndef __ASM_SIGINFO_H
-+#define __ASM_SIGINFO_H
-+
-+#define __ARCH_SI_PREAMBLE_SIZE	(4 * sizeof(int))
-+
-+#include <asm-generic/siginfo.h>
-+
-+#endif
-diff -Nur linux-4.6.2/arch/riscv/include/uapi/asm/unistd.h linux-4.6.2.riscv/arch/riscv/include/uapi/asm/unistd.h
---- linux-4.6.2/arch/riscv/include/uapi/asm/unistd.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/include/uapi/asm/unistd.h	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,9 @@
-+#include <asm-generic/unistd.h>
-+
-+#define __NR_sysriscv  __NR_arch_specific_syscall
-+#ifndef __riscv_atomic
-+__SYSCALL(__NR_sysriscv, sys_sysriscv)
-+#endif
-+
-+#define RISCV_ATOMIC_CMPXCHG    1
-+#define RISCV_ATOMIC_CMPXCHG64  2
-diff -Nur linux-4.6.2/arch/riscv/initramfs.txt linux-4.6.2.riscv/arch/riscv/initramfs.txt
---- linux-4.6.2/arch/riscv/initramfs.txt	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/initramfs.txt	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,9 @@
-+dir /bin 755 0 0
-+file /bin/busybox tmp/bin/busybox 755 0 0
-+dir /etc 755 0 0
-+file /etc/inittab tmp/etc/inittab 755 0 0
-+
-+dir /dev 755 0 0
-+nod /dev/console 644 0 0 c 5 1
-+nod /dev/null 644 0 0 c 1 3
-+slink /init /bin/busybox 755 0 0
-diff -Nur linux-4.6.2/arch/riscv/Kconfig linux-4.6.2.riscv/arch/riscv/Kconfig
---- linux-4.6.2/arch/riscv/Kconfig	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/Kconfig	2017-03-04 02:48:34.162887952 +0100
-@@ -0,0 +1,284 @@
-+#
-+# For a description of the syntax of this configuration file,
-+# see Documentation/kbuild/kconfig-language.txt.
-+#
-+
-+config RISCV
-+	def_bool y
-+	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
-+	select ARCH_WANT_FRAME_POINTERS
-+	select CLONE_BACKWARDS
-+	select COMMON_CLK
-+	select GENERIC_CLOCKEVENTS
-+	select GENERIC_CPU_DEVICES
-+	select GENERIC_IRQ_SHOW
-+	select GENERIC_PCI_IOMAP
-+	select GENERIC_STRNCPY_FROM_USER
-+	select GENERIC_STRNLEN_USER
-+	select GENERIC_SMP_IDLE_THREAD
-+	select GENERIC_ATOMIC64 if !64BIT || !RV_ATOMIC
-+	select ARCH_WANT_OPTIONAL_GPIOLIB
-+	select HAVE_MEMBLOCK
-+	select HAVE_MEMBLOCK_NODE_MAP
-+	select HAVE_DMA_API_DEBUG
-+	select HAVE_DMA_CONTIGUOUS
-+	select HAVE_GENERIC_DMA_COHERENT
-+	select IRQ_DOMAIN
-+	select NO_BOOTMEM
-+	select RV_ATOMIC if SMP
-+	select RV_SYSRISCV_ATOMIC if !RV_ATOMIC
-+	select SPARSE_IRQ
-+	select SYSCTL_EXCEPTION_TRACE
-+	select HAVE_ARCH_TRACEHOOK
-+
-+config MMU
-+	def_bool y
-+
-+# even on 32-bit, physical (and DMA) addresses are > 32-bits
-+config ARCH_PHYS_ADDR_T_64BIT
-+	def_bool y
-+
-+config ARCH_DMA_ADDR_T_64BIT
-+	def_bool y
-+
-+config STACKTRACE_SUPPORT
-+	def_bool y
-+
-+config RWSEM_GENERIC_SPINLOCK
-+	def_bool y
-+
-+config GENERIC_BUG
-+	def_bool y
-+	depends on BUG
-+	select GENERIC_BUG_RELATIVE_POINTERS if 64BIT
-+
-+config GENERIC_BUG_RELATIVE_POINTERS
-+	bool
-+
-+config GENERIC_CALIBRATE_DELAY
-+	def_bool y
-+
-+config GENERIC_CSUM
-+	def_bool y
-+
-+config GENERIC_HWEIGHT
-+	def_bool y
-+
-+config PGTABLE_LEVELS
-+	int
-+	default 3 if 64BIT
-+	default 2
-+
-+menu "Platform type"
-+
-+config SMP
-+	bool "Symmetric Multi-Processing"
-+	help
-+	  This enables support for systems with more than one CPU.  If
-+	  you say N here, the kernel will run on single and
-+	  multiprocessor machines, but will use only one CPU of a
-+	  multiprocessor machine. If you say Y here, the kernel will run
-+	  on many, but not all, single processor machines. On a single
-+	  processor machine, the kernel will run faster if you say N
-+	  here.
-+
-+	  If you don't know what to do here, say N.
-+
-+config NR_CPUS
-+	int "Maximum number of CPUs (2-32)"
-+	range 2 32
-+	depends on SMP
-+	default "8"
-+
-+choice
-+	prompt "CPU selection"
-+	default CPU_RV_ROCKET
-+
-+config CPU_RV_ROCKET
-+	bool "Rocket"
-+	select CPU_SUPPORTS_64BIT_KERNEL
-+
-+config CPU_RV_GENERIC
-+	bool "Generic RISC-V"
-+	select CPU_SUPPORTS_32BIT_KERNEL
-+	select CPU_SUPPORTS_64BIT_KERNEL
-+
-+endchoice
-+
-+config CPU_SUPPORTS_32BIT_KERNEL
-+	bool
-+config CPU_SUPPORTS_64BIT_KERNEL
-+	bool
-+
-+config SBI_CONSOLE
-+	tristate "SBI console support"
-+	select TTY
-+	default y
-+
-+config RVC
-+	bool "Use compressed instructions (RV32C or RV64C)"
-+	default n
-+
-+config RV_ATOMIC
-+	bool "Use atomic memory instructions (RV32A or RV64A)"
-+	default y
-+
-+config RV_SYSRISCV_ATOMIC
-+	bool "Include support for atomic operation syscalls"
-+	default n
-+	help
-+	  If atomic memory instructions are present, i.e.,
-+	  CONFIG_RV_ATOMIC, this includes support for the syscall that
-+	  provides atomic accesses.  This is only useful to run
-+	  binaries that require atomic access but were compiled with
-+	  -mno-atomic.
-+
-+	  If CONFIG_RV_ATOMIC is unset, this option is mandatory.
-+
-+config RV_PUM
-+	def_bool y
-+	prompt "Protect User Memory" if EXPERT
-+	---help---
-+	  Protect User Memory (PUM) prevents the kernel from inadvertently
-+	  accessing user-space memory.  There is a small performance cost
-+	  and kernel size increase if this is enabled.
-+
-+	  If unsure, say Y.
-+
-+endmenu
-+
-+menu "Kernel type"
-+
-+choice
-+	prompt "Kernel code model"
-+	default 64BIT
-+
-+config 32BIT
-+	bool "32-bit kernel"
-+	depends on CPU_SUPPORTS_32BIT_KERNEL
-+	help
-+	  Select this option to build a 32-bit kernel.
-+
-+config 64BIT
-+	bool "64-bit kernel"
-+	depends on CPU_SUPPORTS_64BIT_KERNEL
-+	help
-+	  Select this option to build a 64-bit kernel.
-+
-+endchoice
-+
-+source "mm/Kconfig"
-+
-+source "kernel/Kconfig.preempt"
-+
-+source "kernel/Kconfig.hz"
-+
-+endmenu
-+
-+menu "Bus support"
-+
-+config PCI
-+	bool "PCI support"
-+	select PCI_MSI
-+	help
-+	  This feature enables support for PCI bus system. If you say Y
-+	  here, the kernel will include drivers and infrastructure code
-+	  to support PCI bus devices.
-+
-+config PCI_DOMAINS
-+	def_bool PCI
-+
-+config PCI_DOMAINS_GENERIC
-+	def_bool PCI
-+
-+config PCI_SYSCALL
-+	def_bool PCI
-+
-+source "drivers/pci/Kconfig"
-+
-+endmenu
-+
-+source "init/Kconfig"
-+
-+source "kernel/Kconfig.freezer"
-+
-+menu "Executable file formats"
-+
-+source "fs/Kconfig.binfmt"
-+
-+endmenu
-+
-+menu "Power management options"
-+
-+source kernel/power/Kconfig
-+
-+endmenu
-+
-+source "net/Kconfig"
-+
-+source "drivers/Kconfig"
-+
-+source "fs/Kconfig"
-+
-+menu "Kernel hacking"
-+
-+config CMDLINE_BOOL
-+	bool "Built-in kernel command line"
-+	default n
-+	help
-+	  For most platforms, it is firmware or second stage bootloader
-+	  that by default specifies the kernel command line options.
-+	  However, it might be necessary or advantageous to either override
-+	  the default kernel command line or add a few extra options to it.
-+	  For such cases, this option allows hardcoding command line options
-+	  directly into the kernel.
-+
-+	  For that, choose 'Y' here and fill in the extra boot parameters
-+	  in CONFIG_CMDLINE.
-+
-+	  The built-in options will be concatenated to the default command
-+	  line if CMDLINE_OVERRIDE is set to 'N'. Otherwise, the default
-+	  command line will be ignored and replaced by the built-in string.
-+
-+config CMDLINE
-+	string "Built-in kernel command string"
-+	depends on CMDLINE_BOOL
-+	default ""
-+	help
-+	  Supply command-line options at build time by entering them here.
-+
-+config CMDLINE_OVERRIDE
-+	bool "Built-in command line overrides bootloader arguments"
-+	default n
-+	depends on CMDLINE_BOOL
-+	help
-+	  Set this option to 'Y' to have the kernel ignore the bootloader
-+	  or firmware command line.  Instead, the built-in command line
-+	  will be used exclusively.
-+
-+config EARLY_PRINTK
-+	bool "Early printk"
-+	default n
-+	help
-+	  This option enables special console drivers which allow the kernel
-+	  to print messages very early in the bootup process.
-+
-+	  This is useful for kernel debugging when your machine crashes very
-+	  early before the console code is initialized. For normal operation
-+	  it is not recommended because it looks ugly and doesn't cooperate
-+	  with klogd/syslogd or the X server. You should normally N here,
-+	  unless you want to debug such a crash.
-+
-+
-+source "lib/Kconfig.debug"
-+
-+config CMDLINE_BOOL
-+	bool 
-+endmenu
-+
-+source "security/Kconfig"
-+
-+source "crypto/Kconfig"
-+
-+source "lib/Kconfig"
-+
-diff -Nur linux-4.6.2/arch/riscv/kernel/asm-offsets.c linux-4.6.2.riscv/arch/riscv/kernel/asm-offsets.c
---- linux-4.6.2/arch/riscv/kernel/asm-offsets.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/asm-offsets.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,99 @@
-+#include <linux/kbuild.h>
-+#include <linux/sched.h>
-+#include <asm/thread_info.h>
-+#include <asm/ptrace.h>
-+
-+void asm_offsets(void)
-+{
-+	OFFSET(TASK_THREAD_INFO, task_struct, stack);
-+	OFFSET(THREAD_RA, task_struct, thread.ra);
-+	OFFSET(THREAD_SP, task_struct, thread.sp);
-+	OFFSET(THREAD_S0, task_struct, thread.s[0]);
-+	OFFSET(THREAD_S1, task_struct, thread.s[1]);
-+	OFFSET(THREAD_S2, task_struct, thread.s[2]);
-+	OFFSET(THREAD_S3, task_struct, thread.s[3]);
-+	OFFSET(THREAD_S4, task_struct, thread.s[4]);
-+	OFFSET(THREAD_S5, task_struct, thread.s[5]);
-+	OFFSET(THREAD_S6, task_struct, thread.s[6]);
-+	OFFSET(THREAD_S7, task_struct, thread.s[7]);
-+	OFFSET(THREAD_S8, task_struct, thread.s[8]);
-+	OFFSET(THREAD_S9, task_struct, thread.s[9]);
-+	OFFSET(THREAD_S10, task_struct, thread.s[10]);
-+	OFFSET(THREAD_S11, task_struct, thread.s[11]);
-+	OFFSET(THREAD_SP, task_struct, thread.sp);
-+	OFFSET(TI_TASK, thread_info, task);
-+	OFFSET(TI_FLAGS, thread_info, flags);
-+	OFFSET(TI_CPU, thread_info, cpu);
-+
-+	OFFSET(THREAD_F0,  task_struct, thread.fstate.f[0]);
-+	OFFSET(THREAD_F1,  task_struct, thread.fstate.f[1]);
-+	OFFSET(THREAD_F2,  task_struct, thread.fstate.f[2]);
-+	OFFSET(THREAD_F3,  task_struct, thread.fstate.f[3]);
-+	OFFSET(THREAD_F4,  task_struct, thread.fstate.f[4]);
-+	OFFSET(THREAD_F5,  task_struct, thread.fstate.f[5]);
-+	OFFSET(THREAD_F6,  task_struct, thread.fstate.f[6]);
-+	OFFSET(THREAD_F7,  task_struct, thread.fstate.f[7]);
-+	OFFSET(THREAD_F8,  task_struct, thread.fstate.f[8]);
-+	OFFSET(THREAD_F9,  task_struct, thread.fstate.f[9]);
-+	OFFSET(THREAD_F10, task_struct, thread.fstate.f[10]);
-+	OFFSET(THREAD_F11, task_struct, thread.fstate.f[11]);
-+	OFFSET(THREAD_F12, task_struct, thread.fstate.f[12]);
-+	OFFSET(THREAD_F13, task_struct, thread.fstate.f[13]);
-+	OFFSET(THREAD_F14, task_struct, thread.fstate.f[14]);
-+	OFFSET(THREAD_F15, task_struct, thread.fstate.f[15]);
-+	OFFSET(THREAD_F16, task_struct, thread.fstate.f[16]);
-+	OFFSET(THREAD_F17, task_struct, thread.fstate.f[17]);
-+	OFFSET(THREAD_F18, task_struct, thread.fstate.f[18]);
-+	OFFSET(THREAD_F19, task_struct, thread.fstate.f[19]);
-+	OFFSET(THREAD_F20, task_struct, thread.fstate.f[20]);
-+	OFFSET(THREAD_F21, task_struct, thread.fstate.f[21]);
-+	OFFSET(THREAD_F22, task_struct, thread.fstate.f[22]);
-+	OFFSET(THREAD_F23, task_struct, thread.fstate.f[23]);
-+	OFFSET(THREAD_F24, task_struct, thread.fstate.f[24]);
-+	OFFSET(THREAD_F25, task_struct, thread.fstate.f[25]);
-+	OFFSET(THREAD_F26, task_struct, thread.fstate.f[26]);
-+	OFFSET(THREAD_F27, task_struct, thread.fstate.f[27]);
-+	OFFSET(THREAD_F28, task_struct, thread.fstate.f[28]);
-+	OFFSET(THREAD_F29, task_struct, thread.fstate.f[29]);
-+	OFFSET(THREAD_F30, task_struct, thread.fstate.f[30]);
-+	OFFSET(THREAD_F31, task_struct, thread.fstate.f[31]);
-+	OFFSET(THREAD_FCSR, task_struct, thread.fstate.fcsr);
-+
-+	DEFINE(PT_SIZE, sizeof(struct pt_regs));
-+	OFFSET(PT_SEPC, pt_regs, sepc);
-+	OFFSET(PT_RA, pt_regs, ra);
-+	OFFSET(PT_FP, pt_regs, s0);
-+	OFFSET(PT_S0, pt_regs, s0);
-+	OFFSET(PT_S1, pt_regs, s1);
-+	OFFSET(PT_S2, pt_regs, s2);
-+	OFFSET(PT_S3, pt_regs, s3);
-+	OFFSET(PT_S4, pt_regs, s4);
-+	OFFSET(PT_S5, pt_regs, s5);
-+	OFFSET(PT_S6, pt_regs, s6);
-+	OFFSET(PT_S7, pt_regs, s7);
-+	OFFSET(PT_S8, pt_regs, s8);
-+	OFFSET(PT_S9, pt_regs, s9);
-+	OFFSET(PT_S10, pt_regs, s10);
-+	OFFSET(PT_S11, pt_regs, s11);
-+	OFFSET(PT_SP, pt_regs, sp);
-+	OFFSET(PT_TP, pt_regs, tp);
-+	OFFSET(PT_A0, pt_regs, a0);
-+	OFFSET(PT_A1, pt_regs, a1);
-+	OFFSET(PT_A2, pt_regs, a2);
-+	OFFSET(PT_A3, pt_regs, a3);
-+	OFFSET(PT_A4, pt_regs, a4);
-+	OFFSET(PT_A5, pt_regs, a5);
-+	OFFSET(PT_A6, pt_regs, a6);
-+	OFFSET(PT_A7, pt_regs, a7);
-+	OFFSET(PT_T0, pt_regs, t0);
-+	OFFSET(PT_T1, pt_regs, t1);
-+	OFFSET(PT_T2, pt_regs, t2);
-+	OFFSET(PT_T3, pt_regs, t3);
-+	OFFSET(PT_T4, pt_regs, t4);
-+	OFFSET(PT_T5, pt_regs, t5);
-+	OFFSET(PT_T6, pt_regs, t6);
-+	OFFSET(PT_GP, pt_regs, gp);
-+	OFFSET(PT_SSTATUS, pt_regs, sstatus);
-+	OFFSET(PT_SBADADDR, pt_regs, sbadaddr);
-+	OFFSET(PT_SCAUSE, pt_regs, scause);
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/cpu.c linux-4.6.2.riscv/arch/riscv/kernel/cpu.c
---- linux-4.6.2/arch/riscv/kernel/cpu.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/cpu.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,41 @@
-+#include <linux/init.h>
-+#include <linux/seq_file.h>
-+
-+#ifdef CONFIG_PROC_FS
-+
-+static void *c_start(struct seq_file *m, loff_t *pos)
-+{
-+	*pos = cpumask_next(*pos - 1, cpu_online_mask);
-+	if ((*pos) < nr_cpu_ids)
-+		return (void *)(uintptr_t)(1 + *pos);
-+	return NULL;
-+}
-+
-+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-+{
-+	(*pos)++;
-+	return c_start(m, pos);
-+}
-+
-+static void c_stop(struct seq_file *m, void *v)
-+{
-+}
-+
-+static int c_show(struct seq_file *m, void *v)
-+{
-+	unsigned long hart_id = (unsigned long)v - 1;
-+
-+	seq_printf(m, "hart\t: %lu\n", hart_id);
-+	seq_printf(m, "isa\t: RV%zuG\n", sizeof(void *) * 8);
-+	seq_printf(m, "\n");
-+	return 0;
-+}
-+
-+const struct seq_operations cpuinfo_op = {
-+	.start	= c_start,
-+	.next	= c_next,
-+	.stop	= c_stop,
-+	.show	= c_show
-+};
-+
-+#endif /* CONFIG_PROC_FS */
-diff -Nur linux-4.6.2/arch/riscv/kernel/entry.S linux-4.6.2.riscv/arch/riscv/kernel/entry.S
---- linux-4.6.2/arch/riscv/kernel/entry.S	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/entry.S	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,399 @@
-+#include <linux/init.h>
-+#include <linux/linkage.h>
-+
-+#include <asm/asm.h>
-+#include <asm/csr.h>
-+#include <asm/unistd.h>
-+#include <asm/thread_info.h>
-+#include <asm/asm-offsets.h>
-+
-+	.text
-+	.altmacro
-+	.macro SAVE_ALL
-+	LOCAL _restore_kernel_sp
-+	LOCAL _save_context
-+
-+	/* If coming from userspace, preserve the user stack pointer and load
-+	   the kernel stack pointer.  If we came from the kernel, sscratch
-+	   will contain 0, and we should continue on the current stack. */
-+	csrrw sp, sscratch, sp
-+	bnez sp, _save_context
-+
-+_restore_kernel_sp:
-+	csrr sp, sscratch
-+_save_context:
-+	addi sp, sp, -(PT_SIZE)
-+	REG_S x1,  PT_RA(sp)
-+	REG_S x3,  PT_GP(sp)
-+	REG_S x4,  PT_TP(sp)
-+	REG_S x5,  PT_T0(sp)
-+	REG_S x6,  PT_T1(sp)
-+	REG_S x7,  PT_T2(sp)
-+	REG_S x8,  PT_S0(sp)
-+	REG_S x9,  PT_S1(sp)
-+	REG_S x10, PT_A0(sp)
-+	REG_S x11, PT_A1(sp)
-+	REG_S x12, PT_A2(sp)
-+	REG_S x13, PT_A3(sp)
-+	REG_S x14, PT_A4(sp)
-+	REG_S x15, PT_A5(sp)
-+	REG_S x16, PT_A6(sp)
-+	REG_S x17, PT_A7(sp)
-+	REG_S x18, PT_S2(sp)
-+	REG_S x19, PT_S3(sp)
-+	REG_S x20, PT_S4(sp)
-+	REG_S x21, PT_S5(sp)
-+	REG_S x22, PT_S6(sp)
-+	REG_S x23, PT_S7(sp)
-+	REG_S x24, PT_S8(sp)
-+	REG_S x25, PT_S9(sp)
-+	REG_S x26, PT_S10(sp)
-+	REG_S x27, PT_S11(sp)
-+	REG_S x28, PT_T3(sp)
-+	REG_S x29, PT_T4(sp)
-+	REG_S x30, PT_T5(sp)
-+	REG_S x31, PT_T6(sp)
-+
-+	/* Disable FPU to detect illegal usage of
-+	   floating point in kernel space */
-+	li t0, SR_FS
-+
-+	csrr s0, sscratch
-+	csrrc s1, sstatus, t0
-+	csrr s2, sepc
-+	csrr s3, sbadaddr
-+	csrr s4, scause
-+	REG_S s0, PT_SP(sp)
-+	REG_S s1, PT_SSTATUS(sp)
-+	REG_S s2, PT_SEPC(sp)
-+	REG_S s3, PT_SBADADDR(sp)
-+	REG_S s4, PT_SCAUSE(sp)
-+	.endm
-+
-+	.macro RESTORE_ALL
-+	REG_L a0, PT_SSTATUS(sp)
-+	REG_L a2, PT_SEPC(sp)
-+	csrw sstatus, a0
-+	csrw sepc, a2
-+
-+	REG_L x1,  PT_RA(sp)
-+	REG_L x3,  PT_GP(sp)
-+	REG_L x4,  PT_TP(sp)
-+	REG_L x5,  PT_T0(sp)
-+	REG_L x6,  PT_T1(sp)
-+	REG_L x7,  PT_T2(sp)
-+	REG_L x8,  PT_S0(sp)
-+	REG_L x9,  PT_S1(sp)
-+	REG_L x10, PT_A0(sp)
-+	REG_L x11, PT_A1(sp)
-+	REG_L x12, PT_A2(sp)
-+	REG_L x13, PT_A3(sp)
-+	REG_L x14, PT_A4(sp)
-+	REG_L x15, PT_A5(sp)
-+	REG_L x16, PT_A6(sp)
-+	REG_L x17, PT_A7(sp)
-+	REG_L x18, PT_S2(sp)
-+	REG_L x19, PT_S3(sp)
-+	REG_L x20, PT_S4(sp)
-+	REG_L x21, PT_S5(sp)
-+	REG_L x22, PT_S6(sp)
-+	REG_L x23, PT_S7(sp)
-+	REG_L x24, PT_S8(sp)
-+	REG_L x25, PT_S9(sp)
-+	REG_L x26, PT_S10(sp)
-+	REG_L x27, PT_S11(sp)
-+	REG_L x28, PT_T3(sp)
-+	REG_L x29, PT_T4(sp)
-+	REG_L x30, PT_T5(sp)
-+	REG_L x31, PT_T6(sp)
-+
-+	REG_L x2,  PT_SP(sp)
-+	.endm
-+
-+ENTRY(handle_exception)
-+	SAVE_ALL
-+
-+	/* Set sscratch register to 0, so that if a recursive exception
-+	   occurs, the exception vector knows it came from the kernel */
-+	csrw sscratch, x0
-+
-+	/* Compute address of current thread_info */
-+	li tp, ~(THREAD_SIZE-1)
-+	and tp, tp, sp
-+	/* Set current pointer */
-+	REG_L tp, TI_TASK(tp)
-+
-+1:	auipc gp, %pcrel_hi(_gp)
-+	addi gp, gp, %pcrel_lo(1b)
-+
-+	la ra, ret_from_exception
-+	/* MSB of cause differentiates between
-+	   interrupts and exceptions */
-+	bge s4, zero, 1f
-+
-+	/* Handle interrupts */
-+	slli a0, s4, 1
-+	srli a0, a0, 1
-+	move a1, sp /* pt_regs */
-+	tail do_IRQ
-+1:
-+	/* Handle syscalls */
-+	li t0, EXC_SYSCALL
-+	beq s4, t0, handle_syscall
-+
-+	/* Handle other exceptions */
-+	slli t0, s4, LGPTR
-+	la t1, excp_vect_table
-+	la t2, excp_vect_table_end
-+	move a0, sp /* pt_regs */
-+	add t0, t1, t0
-+	/* Check if exception code lies within bounds */
-+	bgeu t0, t2, 1f
-+	REG_L t0, 0(t0)
-+	jr t0
-+1:
-+	tail do_trap_unknown
-+
-+handle_syscall:
-+	/* Advance SEPC to avoid executing the original
-+	   scall instruction on sret */
-+	addi s2, s2, 0x4
-+	REG_S s2, PT_SEPC(sp)
-+	/* System calls run with interrupts enabled */
-+	csrs sstatus, SR_IE
-+	/* Trace syscalls, but only if requested by the user. */
-+	REG_L t0, TASK_THREAD_INFO(tp)
-+	REG_L t0, TI_FLAGS(t0)
-+	andi t0, t0, _TIF_SYSCALL_TRACE
-+	bnez t0, handle_syscall_trace_enter
-+check_syscall_nr:
-+	/* Check to make sure we don't jump to a bogus syscall number. */
-+	li t0, __NR_syscalls
-+	la s0, sys_ni_syscall
-+	/* Syscall number held in a7 */
-+	bgeu a7, t0, 1f
-+	la s0, sys_call_table
-+	slli t0, a7, LGPTR
-+	add s0, s0, t0
-+	REG_L s0, 0(s0)
-+1:
-+	jalr s0
-+
-+ret_from_syscall:
-+	/* Set user a0 to kernel a0 */
-+	REG_S a0, PT_A0(sp)
-+	/* Trace syscalls, but only if requested by the user. */
-+	REG_L t0, TASK_THREAD_INFO(tp)
-+	REG_L t0, TI_FLAGS(t0)
-+	andi t0, t0, _TIF_SYSCALL_TRACE
-+	bnez t0, handle_syscall_trace_exit
-+
-+ret_from_exception:
-+	REG_L s0, PT_SSTATUS(sp)
-+	csrc sstatus, SR_IE
-+	andi s0, s0, SR_PS
-+	bnez s0, restore_all
-+
-+resume_userspace:
-+	/* Interrupts must be disabled here so flags are checked atomically */
-+	REG_L s0, TASK_THREAD_INFO(tp)
-+	REG_L s0, TI_FLAGS(s0) /* current_thread_info->flags */
-+	andi s1, s0, _TIF_WORK_MASK
-+	bnez s1, work_pending
-+
-+	/* Save unwound kernel stack pointer in sscratch */
-+	addi s0, sp, PT_SIZE
-+	csrw sscratch, s0
-+restore_all:
-+	RESTORE_ALL
-+	sret
-+
-+work_pending:
-+	/* Enter slow path for supplementary processing */
-+	la ra, ret_from_exception
-+	andi s1, s0, _TIF_NEED_RESCHED
-+	bnez s1, work_resched
-+work_notifysig:
-+	/* Handle pending signals and notify-resume requests */
-+	csrs sstatus, SR_IE /* Enable interrupts for do_notify_resume() */
-+	move a0, sp /* pt_regs */
-+	move a1, s0 /* current_thread_info->flags */
-+	tail do_notify_resume
-+work_resched:
-+	tail schedule
-+
-+/* Slow paths for ptrace. */
-+handle_syscall_trace_enter:
-+	move a0, sp
-+	call do_syscall_trace_enter
-+	REG_L a0, PT_A0(sp)
-+	REG_L a1, PT_A1(sp)
-+	REG_L a2, PT_A2(sp)
-+	REG_L a3, PT_A3(sp)
-+	REG_L a4, PT_A4(sp)
-+	REG_L a5, PT_A5(sp)
-+	REG_L a6, PT_A6(sp)
-+	REG_L a7, PT_A7(sp)
-+	j check_syscall_nr
-+handle_syscall_trace_exit:
-+	move a0, sp
-+	call do_syscall_trace_exit
-+	j ret_from_exception
-+
-+END(handle_exception)
-+
-+ENTRY(ret_from_fork)
-+	la ra, ret_from_exception
-+	tail schedule_tail
-+ENDPROC(ret_from_fork)
-+
-+ENTRY(ret_from_kernel_thread)
-+	call schedule_tail
-+	/* Call fn(arg) */
-+	la ra, ret_from_exception
-+	move a0, s1
-+	jr s0
-+ENDPROC(ret_from_kernel_thread)
-+
-+
-+/*
-+ * Integer register context switch
-+ * The callee-saved registers must be saved and restored.
-+ * 
-+ *   a0: previous task_struct (must be preserved across the switch)
-+ *   a1: next task_struct
-+ */
-+ENTRY(__switch_to)
-+	/* Save context into prev->thread */
-+	REG_S ra,  THREAD_RA(a0)
-+	REG_S sp,  THREAD_SP(a0)
-+	REG_S s0,  THREAD_S0(a0)
-+	REG_S s1,  THREAD_S1(a0)
-+	REG_S s2,  THREAD_S2(a0)
-+	REG_S s3,  THREAD_S3(a0)
-+	REG_S s4,  THREAD_S4(a0)
-+	REG_S s5,  THREAD_S5(a0)
-+	REG_S s6,  THREAD_S6(a0)
-+	REG_S s7,  THREAD_S7(a0)
-+	REG_S s8,  THREAD_S8(a0)
-+	REG_S s9,  THREAD_S9(a0)
-+	REG_S s10, THREAD_S10(a0)
-+	REG_S s11, THREAD_S11(a0)
-+	/* Restore context from next->thread */
-+	REG_L ra,  THREAD_RA(a1)
-+	REG_L sp,  THREAD_SP(a1)
-+	REG_L s0,  THREAD_S0(a1)
-+	REG_L s1,  THREAD_S1(a1)
-+	REG_L s2,  THREAD_S2(a1)
-+	REG_L s3,  THREAD_S3(a1)
-+	REG_L s4,  THREAD_S4(a1)
-+	REG_L s5,  THREAD_S5(a1)
-+	REG_L s6,  THREAD_S6(a1)
-+	REG_L s7,  THREAD_S7(a1)
-+	REG_L s8,  THREAD_S8(a1)
-+	REG_L s9,  THREAD_S9(a1)
-+	REG_L s10, THREAD_S10(a1)
-+	REG_L s11, THREAD_S11(a1)
-+	mv tp, a1 /* Next current pointer */
-+	ret
-+ENDPROC(__switch_to)
-+
-+ENTRY(__fstate_save)
-+	li t1, SR_FS
-+	csrs sstatus, t1
-+	frcsr t0
-+	fsd f0,  THREAD_F0(a0)
-+	fsd f1,  THREAD_F1(a0)
-+	fsd f2,  THREAD_F2(a0)
-+	fsd f3,  THREAD_F3(a0)
-+	fsd f4,  THREAD_F4(a0)
-+	fsd f5,  THREAD_F5(a0)
-+	fsd f6,  THREAD_F6(a0)
-+	fsd f7,  THREAD_F7(a0)
-+	fsd f8,  THREAD_F8(a0)
-+	fsd f9,  THREAD_F9(a0)
-+	fsd f10, THREAD_F10(a0)
-+	fsd f11, THREAD_F11(a0)
-+	fsd f12, THREAD_F12(a0)
-+	fsd f13, THREAD_F13(a0)
-+	fsd f14, THREAD_F14(a0)
-+	fsd f15, THREAD_F15(a0)
-+	fsd f16, THREAD_F16(a0)
-+	fsd f17, THREAD_F17(a0)
-+	fsd f18, THREAD_F18(a0)
-+	fsd f19, THREAD_F19(a0)
-+	fsd f20, THREAD_F20(a0)
-+	fsd f21, THREAD_F21(a0)
-+	fsd f22, THREAD_F22(a0)
-+	fsd f23, THREAD_F23(a0)
-+	fsd f24, THREAD_F24(a0)
-+	fsd f25, THREAD_F25(a0)
-+	fsd f26, THREAD_F26(a0)
-+	fsd f27, THREAD_F27(a0)
-+	fsd f28, THREAD_F28(a0)
-+	fsd f29, THREAD_F29(a0)
-+	fsd f30, THREAD_F30(a0)
-+	fsd f31, THREAD_F31(a0)
-+	sw t0, THREAD_FCSR(a0)
-+	csrc sstatus, t1
-+	ret
-+ENDPROC(__fstate_save)
-+
-+ENTRY(__fstate_restore)
-+	li t1, SR_FS
-+	lw t0, THREAD_FCSR(a0)
-+	csrs sstatus, t1
-+	fld f0,  THREAD_F0(a0)
-+	fld f1,  THREAD_F1(a0)
-+	fld f2,  THREAD_F2(a0)
-+	fld f3,  THREAD_F3(a0)
-+	fld f4,  THREAD_F4(a0)
-+	fld f5,  THREAD_F5(a0)
-+	fld f6,  THREAD_F6(a0)
-+	fld f7,  THREAD_F7(a0)
-+	fld f8,  THREAD_F8(a0)
-+	fld f9,  THREAD_F9(a0)
-+	fld f10, THREAD_F10(a0)
-+	fld f11, THREAD_F11(a0)
-+	fld f12, THREAD_F12(a0)
-+	fld f13, THREAD_F13(a0)
-+	fld f14, THREAD_F14(a0)
-+	fld f15, THREAD_F15(a0)
-+	fld f16, THREAD_F16(a0)
-+	fld f17, THREAD_F17(a0)
-+	fld f18, THREAD_F18(a0)
-+	fld f19, THREAD_F19(a0)
-+	fld f20, THREAD_F20(a0)
-+	fld f21, THREAD_F21(a0)
-+	fld f22, THREAD_F22(a0)
-+	fld f23, THREAD_F23(a0)
-+	fld f24, THREAD_F24(a0)
-+	fld f25, THREAD_F25(a0)
-+	fld f26, THREAD_F26(a0)
-+	fld f27, THREAD_F27(a0)
-+	fld f28, THREAD_F28(a0)
-+	fld f29, THREAD_F29(a0)
-+	fld f30, THREAD_F30(a0)
-+	fld f31, THREAD_F31(a0)
-+	fscsr t0
-+	csrc sstatus, t1
-+	ret
-+ENDPROC(__fstate_restore)
-+
-+
-+	.section ".rodata"
-+	/* Exception vector table */
-+ENTRY(excp_vect_table)
-+	PTR do_trap_insn_misaligned
-+	PTR do_page_fault
-+	PTR do_trap_insn_illegal
-+	PTR do_trap_unknown
-+	PTR do_trap_unknown
-+	PTR do_page_fault
-+	PTR do_trap_amo_misaligned
-+	PTR do_page_fault
-+	PTR 0 /* handle_syscall */
-+	PTR do_trap_break
-+excp_vect_table_end:
-+END(excp_vect_table)
-+
-diff -Nur linux-4.6.2/arch/riscv/kernel/head.S linux-4.6.2.riscv/arch/riscv/kernel/head.S
---- linux-4.6.2/arch/riscv/kernel/head.S	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/head.S	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,77 @@
-+#include <asm/thread_info.h>
-+#include <asm/asm-offsets.h>
-+#include <asm/asm.h>
-+#include <linux/init.h>
-+#include <linux/linkage.h>
-+#include <asm/thread_info.h>
-+#include <asm/page.h>
-+#include <asm/csr.h>
-+
-+__INIT
-+ENTRY(_start)
-+	/* Load the global pointer (before any use of la) */
-+1:	auipc gp, %pcrel_hi(_gp)
-+	addi gp, gp, %pcrel_lo(1b)
-+
-+	/* Disable FPU to detect illegal usage of
-+	   floating point in kernel space */
-+	li t0, SR_FS
-+	csrc sstatus, t0
-+
-+#ifdef CONFIG_RV_PUM
-+	/* Prevent inadvertent access to user memory */
-+	li t0, SR_PUM
-+	csrs sstatus, t0
-+#endif
-+
-+	/* See if we're the main hart */
-+	call sbi_hart_id
-+	bnez a0, .Lsecondary_start
-+
-+	/* Clear the .bss segment */
-+	la a0, __bss_start
-+	li a1, 0
-+	la a2, __bss_stop
-+	sub a2, a2, a0
-+	call memset
-+
-+	/* Initialize stack pointer */
-+	la sp, init_thread_union + THREAD_SIZE
-+	/* Initialize current task_struct pointer */
-+	la tp, init_task
-+
-+	tail start_kernel
-+
-+.Lsecondary_start:
-+#ifdef CONFIG_SMP
-+	li a1, CONFIG_NR_CPUS
-+	bgeu a0, a1, .Lsecondary_park
-+
-+	la a1, __cpu_up_stack_pointer
-+	slli a0, a0, LGREG
-+	add a0, a0, a1
-+
-+.Lwait_for_cpu_up:
-+	REG_L sp, (a0)
-+	beqz sp, .Lwait_for_cpu_up
-+
-+	/* Initialize task_struct pointer */
-+	li tp, -THREAD_SIZE
-+	add tp, tp, sp
-+	REG_L tp, (tp)
-+
-+	tail smp_callin
-+#endif
-+
-+.Lsecondary_park:
-+	/* We lack SMP support or have too many harts, so park this hart */
-+	wfi
-+	j .Lsecondary_park
-+END(_start)
-+
-+__PAGE_ALIGNED_BSS
-+	/* Empty zero page */
-+	.balign PAGE_SIZE
-+ENTRY(empty_zero_page)
-+	.fill (empty_zero_page + PAGE_SIZE) - ., 1, 0x00
-+END(empty_zero_page)
-diff -Nur linux-4.6.2/arch/riscv/kernel/irq.c linux-4.6.2.riscv/arch/riscv/kernel/irq.c
---- linux-4.6.2/arch/riscv/kernel/irq.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/irq.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,102 @@
-+#include <linux/interrupt.h>
-+#include <linux/ftrace.h>
-+#include <linux/seq_file.h>
-+
-+#include <asm/ptrace.h>
-+#include <asm/sbi.h>
-+#include <asm/sbi-con.h>
-+#include <asm/smp.h>
-+
-+struct plic_context {
-+	volatile int priority_threshold;
-+	volatile int claim;
-+};
-+
-+static DEFINE_PER_CPU(struct plic_context *, plic_context);
-+static DEFINE_PER_CPU(unsigned int, irq_in_progress);
-+
-+static void riscv_software_interrupt(void)
-+{
-+	irqreturn_t ret;
-+
-+#ifdef CONFIG_SMP
-+	ret = handle_ipi();
-+	if (ret != IRQ_NONE)
-+		return;
-+#endif
-+
-+	ret = sbi_console_isr();
-+	if (ret != IRQ_NONE)
-+		return;
-+
-+	BUG();
-+}
-+
-+static void plic_interrupt(void)
-+{
-+	unsigned int cpu = smp_processor_id();
-+	unsigned int irq = per_cpu(plic_context, cpu)->claim;
-+
-+	BUG_ON(per_cpu(irq_in_progress, cpu) != 0);
-+
-+	if (irq) {
-+		per_cpu(irq_in_progress, cpu) = irq;
-+		generic_handle_irq(irq);
-+	}
-+}
-+
-+asmlinkage void __irq_entry do_IRQ(unsigned int cause, struct pt_regs *regs)
-+{
-+	struct pt_regs *old_regs = set_irq_regs(regs);
-+	irq_enter();
-+
-+	/* There are three classes of interrupt: timer, software, and
-+	   external devices.  We dispatch between them here.  External
-+	   device interrupts use the generic IRQ mechanisms. */
-+	switch (cause) {
-+		case INTERRUPT_CAUSE_TIMER:
-+			riscv_timer_interrupt();
-+			break;
-+		case INTERRUPT_CAUSE_SOFTWARE:
-+			riscv_software_interrupt();
-+			break;
-+		case INTERRUPT_CAUSE_EXTERNAL:
-+			plic_interrupt();
-+			break;
-+		default:
-+			BUG();
-+	}
-+
-+	irq_exit();
-+	set_irq_regs(old_regs);
-+}
-+
-+static void plic_irq_mask(struct irq_data *d)
-+{
-+	unsigned int cpu = smp_processor_id();
-+
-+	BUG_ON(d->irq != per_cpu(irq_in_progress, cpu));
-+}
-+
-+static void plic_irq_unmask(struct irq_data *d)
-+{
-+	unsigned int cpu = smp_processor_id();
-+
-+	BUG_ON(d->irq != per_cpu(irq_in_progress, cpu));
-+
-+	per_cpu(plic_context, cpu)->claim = per_cpu(irq_in_progress, cpu);
-+	per_cpu(irq_in_progress, cpu) = 0;
-+}
-+
-+struct irq_chip plic_irq_chip = {
-+	.name = "riscv",
-+	.irq_mask = plic_irq_mask,
-+	.irq_mask_ack = plic_irq_mask,
-+	.irq_unmask = plic_irq_unmask,
-+};
-+
-+void __init init_IRQ(void)
-+{
-+	/* Enable software interrupts (and disable the others) */
-+	csr_write(sie, SIE_SSIE);
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/Makefile linux-4.6.2.riscv/arch/riscv/kernel/Makefile
---- linux-4.6.2/arch/riscv/kernel/Makefile	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/Makefile	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,15 @@
-+#
-+# Makefile for the RISC-V Linux kernel
-+#
-+
-+extra-y := head.o vmlinux.lds
-+
-+obj-y	:= cpu.o entry.o irq.o process.o ptrace.o reset.o setup.o \
-+	   sbi.o signal.o syscall_table.o sys_riscv.o time.o traps.o \
-+	   stacktrace.o vdso.o vdso/
-+
-+obj-$(CONFIG_SMP)		+= smpboot.o smp.o
-+obj-$(CONFIG_SBI_CONSOLE)	+= sbi-con.o
-+obj-$(CONFIG_PCI)		+= pci.o
-+
-+clean:
-diff -Nur linux-4.6.2/arch/riscv/kernel/pci.c linux-4.6.2.riscv/arch/riscv/kernel/pci.c
---- linux-4.6.2/arch/riscv/kernel/pci.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/pci.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,23 @@
-+#include <linux/init.h>
-+#include <linux/io.h>
-+#include <linux/kernel.h>
-+#include <linux/mm.h>
-+#include <linux/slab.h>
-+#include <linux/pci.h>
-+
-+/*
-+ * Called after each bus is probed, but before its children are examined
-+ */
-+void pcibios_fixup_bus(struct pci_bus *bus)
-+{
-+	/* nothing to do, expected to be removed in the future */
-+}
-+
-+/*
-+ * We don't have to worry about legacy ISA devices, so nothing to do here
-+ */
-+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
-+				resource_size_t size, resource_size_t align)
-+{
-+	return res->start;
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/process.c linux-4.6.2.riscv/arch/riscv/kernel/process.c
---- linux-4.6.2/arch/riscv/kernel/process.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/process.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,106 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/tick.h>
-+#include <linux/ptrace.h>
-+
-+#include <asm/unistd.h>
-+#include <asm/uaccess.h>
-+#include <asm/processor.h>
-+#include <asm/csr.h>
-+#include <asm/string.h>
-+#include <asm/switch_to.h>
-+
-+extern asmlinkage void ret_from_fork(void);
-+extern asmlinkage void ret_from_kernel_thread(void);
-+
-+void arch_cpu_idle(void)
-+{
-+	wait_for_interrupt();
-+	local_irq_enable();
-+}
-+
-+void show_regs(struct pt_regs *regs)
-+{
-+	show_regs_print_info(KERN_DEFAULT);
-+
-+	printk("sepc: " REG_FMT " ra : " REG_FMT " sp : " REG_FMT "\n",
-+		regs->sepc, regs->ra, regs->sp);
-+	printk(" gp : " REG_FMT " tp : " REG_FMT " t0 : " REG_FMT "\n",
-+		regs->gp, regs->tp, regs->t0);
-+	printk(" t1 : " REG_FMT " t2 : " REG_FMT " s0 : " REG_FMT "\n",
-+		regs->t1, regs->t2, regs->s0);
-+	printk(" s1 : " REG_FMT " a0 : " REG_FMT " a1 : " REG_FMT "\n",
-+		regs->s1, regs->a0, regs->a1);
-+	printk(" a2 : " REG_FMT " a3 : " REG_FMT " a4 : " REG_FMT "\n",
-+		regs->a2, regs->a3, regs->a4);
-+	printk(" a5 : " REG_FMT " a6 : " REG_FMT " a7 : " REG_FMT "\n",
-+		regs->a5, regs->a6, regs->a7);
-+	printk(" s2 : " REG_FMT " s3 : " REG_FMT " s4 : " REG_FMT "\n",
-+		regs->s2, regs->s3, regs->s4);
-+	printk(" s5 : " REG_FMT " s6 : " REG_FMT " s7 : " REG_FMT "\n",
-+		regs->s5, regs->s6, regs->s7);
-+	printk(" s8 : " REG_FMT " s9 : " REG_FMT " s10: " REG_FMT "\n",
-+		regs->s8, regs->s9, regs->s10);
-+	printk(" s11: " REG_FMT " t3 : " REG_FMT " t4 : " REG_FMT "\n",
-+		regs->s11, regs->t3, regs->t4);
-+	printk(" t5 : " REG_FMT " t6 : " REG_FMT "\n",
-+		regs->t5, regs->t6);
-+
-+	printk("sstatus: " REG_FMT " sbadaddr: " REG_FMT " scause: " REG_FMT "\n",
-+		regs->sstatus, regs->sbadaddr, regs->scause);
-+}
-+
-+void start_thread(struct pt_regs *regs, unsigned long pc, 
-+	unsigned long sp)
-+{
-+	regs->sstatus = SR_PIE /* User mode, irqs on */ | SR_FS_INITIAL;
-+	regs->sepc = pc;
-+	regs->sp = sp;
-+	set_fs(USER_DS);
-+}
-+
-+void flush_thread(void)
-+{
-+	/* Reset FPU context
-+	 *	frm: round to nearest, ties to even (IEEE default)
-+	 *	fflags: accrued exceptions cleared
-+	 */
-+	memset(&current->thread.fstate, 0,
-+		sizeof(struct user_fpregs_struct));
-+}
-+
-+int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
-+{
-+	fstate_save(src, task_pt_regs(src));
-+	*dst = *src;
-+	return 0;
-+}
-+
-+int copy_thread(unsigned long clone_flags, unsigned long usp,
-+	unsigned long arg, struct task_struct *p)
-+{
-+	struct pt_regs *childregs = task_pt_regs(p);
-+
-+	/* p->thread holds context to be restored by __switch_to() */
-+	if (unlikely(p->flags & PF_KTHREAD)) {
-+		/* Kernel thread */
-+		const register unsigned long gp __asm__ ("gp");
-+		memset(childregs, 0, sizeof(struct pt_regs));
-+		childregs->gp = gp;
-+		childregs->sstatus = SR_PS | SR_PIE; /* Supervisor, irqs on */
-+
-+		p->thread.ra = (unsigned long)ret_from_kernel_thread;
-+		p->thread.s[0] = usp; /* fn */
-+		p->thread.s[1] = arg;
-+	} else {
-+		*childregs = *(current_pt_regs());
-+		if (usp) /* User fork */
-+			childregs->sp = usp;
-+		if (clone_flags & CLONE_SETTLS)
-+			childregs->tp = childregs->a5;
-+		childregs->a0 = 0; /* Return value of fork() */
-+		p->thread.ra = (unsigned long)ret_from_fork;
-+	}
-+	p->thread.sp = (unsigned long)childregs; /* kernel sp */
-+	return 0;
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/ptrace.c linux-4.6.2.riscv/arch/riscv/kernel/ptrace.c
---- linux-4.6.2/arch/riscv/kernel/ptrace.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/ptrace.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,128 @@
-+#include <asm/ptrace.h>
-+#include <asm/syscall.h>
-+#include <asm/thread_info.h>
-+#include <linux/ptrace.h>
-+#include <linux/elf.h>
-+#include <linux/regset.h>
-+#include <linux/tracehook.h>
-+#include <trace/events/syscalls.h>
-+
-+enum riscv_regset {
-+	REGSET_X,
-+};
-+
-+/*
-+ * Get registers from task and ready the result for userspace.
-+ */
-+static char *getregs(struct task_struct *child, struct pt_regs *uregs)
-+{
-+	*uregs = *task_pt_regs(child);
-+	return (char *)uregs;
-+}
-+
-+/* Put registers back to task. */
-+static void putregs(struct task_struct *child, struct pt_regs *uregs)
-+{
-+	struct pt_regs *regs = task_pt_regs(child);
-+	*regs = *uregs;
-+}
-+
-+static int riscv_gpr_get(struct task_struct *target,
-+                         const struct user_regset *regset,
-+                         unsigned int pos, unsigned int count,
-+                         void *kbuf, void __user *ubuf)
-+{
-+	struct pt_regs regs;
-+
-+	getregs(target, &regs);
-+
-+	return user_regset_copyout(&pos, &count, &kbuf, &ubuf, &regs, 0,
-+				   sizeof(regs));
-+}
-+
-+static int riscv_gpr_set(struct task_struct *target,
-+                         const struct user_regset *regset,
-+                         unsigned int pos, unsigned int count,
-+                         const void *kbuf, const void __user *ubuf)
-+{
-+	int ret;
-+	struct pt_regs regs;
-+
-+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &regs, 0,
-+				 sizeof(regs));
-+	if (ret)
-+		return ret;
-+
-+	putregs(target, &regs);
-+
-+	return 0;
-+}
-+
-+
-+static const struct user_regset riscv_user_regset[] = {
-+	[REGSET_X] = {
-+		.core_note_type = NT_PRSTATUS,
-+		.n = ELF_NGREG,
-+		.size = sizeof(elf_greg_t),
-+		.align = sizeof(elf_greg_t),
-+		.get = &riscv_gpr_get,
-+		.set = &riscv_gpr_set,
-+	},
-+};
-+
-+static const struct user_regset_view riscv_user_native_view = {
-+	.name = "riscv",
-+	.e_machine = EM_RISCV,
-+	.regsets = riscv_user_regset,
-+	.n = ARRAY_SIZE(riscv_user_regset),
-+};
-+
-+const struct user_regset_view *task_user_regset_view(struct task_struct *task)
-+{
-+	return &riscv_user_native_view;
-+}
-+
-+void ptrace_disable(struct task_struct *child)
-+{
-+        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-+}
-+
-+long arch_ptrace(struct task_struct *child, long request,
-+                 unsigned long addr, unsigned long data)
-+{
-+	long ret = -EIO;
-+
-+	switch (request) {
-+	default:
-+		ret = ptrace_request(child, request, addr, data);
-+		break;
-+	}
-+
-+	return ret;
-+}
-+
-+/* Allows PTRACE_SYSCALL to work.  These are called from entry.S in
-+ * {handle,ret_from}_syscall. */
-+void do_syscall_trace_enter(struct pt_regs *regs)
-+{
-+	if (test_thread_flag(TIF_SYSCALL_TRACE)) {
-+		if (tracehook_report_syscall_entry(regs))
-+			syscall_set_nr(current, regs, -1);
-+	}
-+
-+#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
-+	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
-+		trace_sys_enter(regs, syscall_get_nr(current, regs));
-+#endif
-+}
-+
-+void do_syscall_trace_exit(struct pt_regs *regs)
-+{
-+	if (test_thread_flag(TIF_SYSCALL_TRACE))
-+		tracehook_report_syscall_exit(regs, 0);
-+
-+#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
-+	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
-+		trace_sys_exit(regs, regs->regs[0]);
-+#endif
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/reset.c linux-4.6.2.riscv/arch/riscv/kernel/reset.c
---- linux-4.6.2/arch/riscv/kernel/reset.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/reset.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,19 @@
-+#include <linux/reboot.h>
-+#include <linux/export.h>
-+#include <asm/sbi.h>
-+
-+void (*pm_power_off)(void) = machine_power_off;
-+EXPORT_SYMBOL(pm_power_off);
-+
-+void machine_restart(char *cmd)
-+{
-+}
-+
-+void machine_halt(void)
-+{
-+}
-+
-+void machine_power_off(void)
-+{
-+  sbi_shutdown();
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/sbi-con.c linux-4.6.2.riscv/arch/riscv/kernel/sbi-con.c
---- linux-4.6.2/arch/riscv/kernel/sbi-con.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/sbi-con.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,155 @@
-+#include <linux/init.h>
-+#include <linux/console.h>
-+#include <linux/tty.h>
-+#include <linux/tty_flip.h>
-+#include <linux/tty_driver.h>
-+#include <linux/module.h>
-+#include <linux/interrupt.h>
-+
-+#include <asm/sbi.h>
-+
-+static DEFINE_SPINLOCK(sbi_tty_port_lock);
-+static struct tty_port sbi_tty_port;
-+static struct tty_driver *sbi_tty_driver;
-+
-+irqreturn_t sbi_console_isr(void)
-+{
-+	int ch = sbi_console_getchar();
-+	if (ch < 0)
-+		return IRQ_NONE;
-+
-+	spin_lock(&sbi_tty_port_lock);
-+	tty_insert_flip_char(&sbi_tty_port, ch, TTY_NORMAL);
-+	tty_flip_buffer_push(&sbi_tty_port);
-+	spin_unlock(&sbi_tty_port_lock);
-+
-+	return IRQ_HANDLED;
-+}
-+
-+static int sbi_tty_open(struct tty_struct *tty, struct file *filp)
-+{
-+	return 0;
-+}
-+
-+static int sbi_tty_write(struct tty_struct *tty,
-+	const unsigned char *buf, int count)
-+{
-+	const unsigned char *end;
-+
-+	for (end = buf + count; buf < end; buf++) {
-+		sbi_console_putchar(*buf);
-+	}
-+	return count;
-+}
-+
-+static int sbi_tty_write_room(struct tty_struct *tty)
-+{
-+	return 1024; /* arbitrary */
-+}
-+
-+static const struct tty_operations sbi_tty_ops = {
-+	.open		= sbi_tty_open,
-+	.write		= sbi_tty_write,
-+	.write_room	= sbi_tty_write_room,
-+};
-+
-+
-+static void sbi_console_write(struct console *co, const char *buf, unsigned n)
-+{
-+	for ( ; n > 0; n--, buf++) {
-+		if (*buf == '\n')
-+			sbi_console_putchar('\r');
-+		sbi_console_putchar(*buf);
-+	}
-+}
-+
-+static struct tty_driver *sbi_console_device(struct console *co, int *index)
-+{
-+	*index = co->index;
-+	return sbi_tty_driver;
-+}
-+
-+static int sbi_console_setup(struct console *co, char *options)
-+{
-+	return co->index != 0 ? -ENODEV : 0;
-+}
-+
-+static struct console sbi_console = {
-+	.name	= "sbi_console",
-+	.write	= sbi_console_write,
-+	.device	= sbi_console_device,
-+	.setup	= sbi_console_setup,
-+	.flags	= CON_PRINTBUFFER,
-+	.index	= -1
-+};
-+
-+static int __init sbi_console_init(void)
-+{
-+	int ret;
-+
-+	register_console(&sbi_console);
-+
-+	sbi_tty_driver = tty_alloc_driver(1,
-+		TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV);
-+	if (unlikely(IS_ERR(sbi_tty_driver)))
-+		return PTR_ERR(sbi_tty_driver);
-+
-+	sbi_tty_driver->driver_name = "sbi";
-+	sbi_tty_driver->name = "ttySBI";
-+	sbi_tty_driver->major = TTY_MAJOR;
-+	sbi_tty_driver->minor_start = 0;
-+	sbi_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
-+	sbi_tty_driver->subtype = SERIAL_TYPE_NORMAL;
-+	sbi_tty_driver->init_termios = tty_std_termios;
-+	tty_set_operations(sbi_tty_driver, &sbi_tty_ops);
-+
-+	tty_port_init(&sbi_tty_port);
-+	tty_port_link_device(&sbi_tty_port, sbi_tty_driver, 0);
-+
-+	ret = tty_register_driver(sbi_tty_driver);
-+	if (unlikely(ret))
-+		goto out_tty_put;
-+
-+	/* Poll the console once, which will trigger future interrupts */
-+	sbi_console_isr();
-+
-+	return ret;
-+
-+out_tty_put:
-+	put_tty_driver(sbi_tty_driver);
-+	return ret;
-+}
-+
-+static void __exit sbi_console_exit(void)
-+{
-+	tty_unregister_driver(sbi_tty_driver);
-+	put_tty_driver(sbi_tty_driver);
-+}
-+
-+module_init(sbi_console_init);
-+module_exit(sbi_console_exit);
-+
-+MODULE_DESCRIPTION("RISC-V SBI console driver");
-+MODULE_LICENSE("GPL");
-+
-+#ifdef CONFIG_EARLY_PRINTK
-+
-+static struct console early_console_dev __initdata = {
-+	.name	= "early",
-+	.write	= sbi_console_write,
-+	.flags	= CON_PRINTBUFFER | CON_BOOT,
-+	.index	= -1
-+};
-+
-+static int __init setup_early_printk(char *str)
-+{
-+	if (early_console == NULL) {
-+		early_console = &early_console_dev;
-+		register_console(early_console);
-+	}
-+	return 0;
-+}
-+
-+early_param("earlyprintk", setup_early_printk);
-+
-+#endif
-diff -Nur linux-4.6.2/arch/riscv/kernel/sbi.S linux-4.6.2.riscv/arch/riscv/kernel/sbi.S
---- linux-4.6.2/arch/riscv/kernel/sbi.S	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/sbi.S	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,15 @@
-+.globl sbi_hart_id; sbi_hart_id = -2048
-+.globl sbi_num_harts; sbi_num_harts = -2032
-+.globl sbi_query_memory; sbi_query_memory = -2016
-+.globl sbi_console_putchar; sbi_console_putchar = -2000
-+.globl sbi_console_getchar; sbi_console_getchar = -1984
-+.globl sbi_send_ipi; sbi_send_ipi = -1952
-+.globl sbi_clear_ipi; sbi_clear_ipi = -1936
-+.globl sbi_timebase; sbi_timebase = -1920
-+.globl sbi_shutdown; sbi_shutdown = -1904
-+.globl sbi_set_timer; sbi_set_timer = -1888
-+.globl sbi_mask_interrupt; sbi_mask_interrupt = -1872
-+.globl sbi_unmask_interrupt; sbi_unmask_interrupt = -1856
-+.globl sbi_remote_sfence_vm; sbi_remote_sfence_vm = -1840
-+.globl sbi_remote_sfence_vm_range; sbi_remote_sfence_vm_range = -1824
-+.globl sbi_remote_fence_i; sbi_remote_fence_i = -1808
-diff -Nur linux-4.6.2/arch/riscv/kernel/setup.c linux-4.6.2.riscv/arch/riscv/kernel/setup.c
---- linux-4.6.2/arch/riscv/kernel/setup.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/setup.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,161 @@
-+#include <linux/init.h>
-+#include <linux/mm.h>
-+#include <linux/memblock.h>
-+#include <linux/sched.h>
-+#include <linux/initrd.h>
-+#include <linux/console.h>
-+#include <linux/screen_info.h>
-+
-+#include <asm/setup.h>
-+#include <asm/sections.h>
-+#include <asm/pgtable.h>
-+#include <asm/smp.h>
-+#include <asm/sbi.h>
-+
-+#ifdef CONFIG_DUMMY_CONSOLE
-+struct screen_info screen_info = {
-+	.orig_video_lines	= 30,
-+	.orig_video_cols	= 80,
-+	.orig_video_mode	= 0,
-+	.orig_video_ega_bx	= 0,
-+	.orig_video_isVGA	= 1,
-+	.orig_video_points	= 8
-+};
-+#endif
-+
-+static char __initdata command_line[COMMAND_LINE_SIZE];
-+#ifdef CONFIG_CMDLINE_BOOL
-+static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
-+#endif /* CONFIG_CMDLINE_BOOL */
-+
-+unsigned long va_pa_offset;
-+unsigned long pfn_base;
-+
-+#ifdef CONFIG_BLK_DEV_INITRD
-+static void __init setup_initrd(void)
-+{
-+	extern char __initramfs_start[];
-+	extern unsigned long __initramfs_size;
-+	unsigned long size;
-+
-+	if (__initramfs_size > 0) {
-+		initrd_start = (unsigned long)(&__initramfs_start);
-+		initrd_end = initrd_start + __initramfs_size;
-+	}
-+
-+	if (initrd_start >= initrd_end) {
-+		printk(KERN_INFO "initrd not found or empty");
-+		goto disable;
-+	}
-+	if (__pa(initrd_end) > PFN_PHYS(max_low_pfn)) {
-+		printk(KERN_ERR "initrd extends beyond end of memory");
-+		goto disable;
-+	}
-+
-+	size =  initrd_end - initrd_start;
-+	memblock_reserve(__pa(initrd_start), size);
-+	initrd_below_start_ok = 1;
-+
-+	printk(KERN_INFO "Initial ramdisk at: 0x%p (%lu bytes)\n",
-+		(void *)(initrd_start), size);
-+	return;
-+disable:
-+	printk(KERN_CONT " - disabling initrd\n");
-+	initrd_start = 0;
-+	initrd_end = 0;
-+}
-+#endif /* CONFIG_BLK_DEV_INITRD */
-+
-+static resource_size_t __initdata mem_size;
-+
-+/* Parse "mem=nn[KkMmGg]" */
-+static int __init early_mem(char *p)
-+{
-+	if (!p)
-+		return -EINVAL;
-+	mem_size = memparse(p, &p) & PMD_MASK;
-+	if (mem_size == 0)
-+		return -EINVAL;
-+	return 0;
-+}
-+early_param("mem", early_mem);
-+
-+static void __init reserve_boot_page_table(pte_t *table)
-+{
-+	unsigned long i;
-+
-+	memblock_reserve(__pa(table), PAGE_SIZE);
-+
-+	for (i = 0; i < PTRS_PER_PTE; i++) {
-+		if (pte_present(table[i]) && !pte_huge(table[i]))
-+			reserve_boot_page_table(pfn_to_virt(pte_pfn(table[i])));
-+	}
-+}
-+
-+static void __init setup_bootmem(void)
-+{
-+	unsigned long ret;
-+	memory_block_info info;
-+
-+	ret = sbi_query_memory(0, &info);
-+	BUG_ON(ret != 0);
-+	BUG_ON((info.base & ~PMD_MASK) != 0);
-+	BUG_ON((info.size & ~PMD_MASK) != 0);
-+	pr_info("Available physical memory: %ldMB\n", info.size >> 20);
-+
-+	/* The kernel image is mapped at VA=PAGE_OFFSET and PA=info.base */
-+	va_pa_offset = PAGE_OFFSET - info.base;
-+	pfn_base = PFN_DOWN(info.base);
-+
-+	if ((mem_size != 0) && (mem_size < info.size)) {
-+		memblock_enforce_memory_limit(mem_size);
-+		info.size = mem_size;
-+		pr_notice("Physical memory usage limited to %lluMB\n",
-+			(unsigned long long)(mem_size >> 20));
-+	}
-+	set_max_mapnr(PFN_DOWN(info.size));
-+	max_low_pfn = PFN_DOWN(info.base + info.size);
-+
-+#ifdef CONFIG_BLK_DEV_INITRD
-+	setup_initrd();
-+#endif /* CONFIG_BLK_DEV_INITRD */
-+
-+	memblock_reserve(info.base, __pa(_end) - info.base);
-+	reserve_boot_page_table(pfn_to_virt(csr_read(sptbr)));
-+	memblock_allow_resize();
-+}
-+
-+void __init setup_arch(char **cmdline_p)
-+{
-+#ifdef CONFIG_CMDLINE_BOOL
-+#ifdef CONFIG_CMDLINE_OVERRIDE
-+	strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
-+#else
-+	if (builtin_cmdline[0] != '\0') {
-+		/* Append bootloader command line to built-in */
-+		strlcat(builtin_cmdline, " ", COMMAND_LINE_SIZE);
-+		strlcat(builtin_cmdline, boot_command_line, COMMAND_LINE_SIZE);
-+		strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
-+	}
-+#endif /* CONFIG_CMDLINE_OVERRIDE */
-+#endif /* CONFIG_CMDLINE_BOOL */
-+	strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
-+	*cmdline_p = command_line;
-+
-+	parse_early_param();
-+
-+	init_mm.start_code = (unsigned long) _stext;
-+	init_mm.end_code   = (unsigned long) _etext;
-+	init_mm.end_data   = (unsigned long) _edata;
-+	init_mm.brk        = (unsigned long) _end;
-+
-+	setup_bootmem();
-+#ifdef CONFIG_SMP
-+	setup_smp();
-+#endif
-+	paging_init();
-+
-+#ifdef CONFIG_DUMMY_CONSOLE
-+	conswitchp = &dummy_con;
-+#endif
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/signal.c linux-4.6.2.riscv/arch/riscv/kernel/signal.c
---- linux-4.6.2/arch/riscv/kernel/signal.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/signal.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,236 @@
-+#include <linux/signal.h>
-+#include <linux/uaccess.h>
-+#include <linux/syscalls.h>
-+#include <linux/tracehook.h>
-+#include <linux/linkage.h>
-+
-+#include <asm/ucontext.h>
-+#include <asm/vdso.h>
-+#include <asm/switch_to.h>
-+#include <asm/csr.h>
-+
-+#define DEBUG_SIG 0
-+
-+struct rt_sigframe {
-+	struct siginfo info;
-+	struct ucontext uc;
-+};
-+
-+static long restore_sigcontext(struct pt_regs *regs,
-+	struct sigcontext __user *sc)
-+{
-+	struct task_struct *task = current;
-+	long err;
-+	/* sc_regs is structured the same as the start of pt_regs */
-+	err = __copy_from_user(regs, &sc->sc_regs, sizeof(sc->sc_regs));
-+	err |= __copy_from_user(&task->thread.fstate, &sc->sc_fpregs,
-+		sizeof(sc->sc_fpregs));
-+	if (likely(!err))
-+		fstate_restore(task, regs);
-+	return err;
-+}
-+
-+SYSCALL_DEFINE0(rt_sigreturn)
-+{
-+	struct pt_regs *regs = current_pt_regs();
-+	struct rt_sigframe __user *frame;
-+	struct task_struct *task;
-+	sigset_t set;
-+
-+	/* Always make any pending restarted system calls return -EINTR */
-+	current->restart_block.fn = do_no_restart_syscall;
-+
-+	frame = (struct rt_sigframe __user *)regs->sp;
-+
-+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-+		goto badframe;
-+
-+	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
-+		goto badframe;
-+
-+	set_current_blocked(&set);
-+
-+	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
-+		goto badframe;
-+
-+	if (restore_altstack(&frame->uc.uc_stack))
-+		goto badframe;
-+
-+	return regs->a0;
-+
-+badframe:
-+	task = current;
-+	if (show_unhandled_signals) {
-+		pr_info_ratelimited("%s[%d]: bad frame in %s: "
-+			"frame=%p pc=%p sp=%p\n",
-+			task->comm, task_pid_nr(task), __func__,
-+			frame, (void *)regs->sepc, (void *)regs->sp);
-+	}
-+	force_sig(SIGSEGV, task);
-+	return 0;
-+}
-+
-+static long setup_sigcontext(struct sigcontext __user *sc,
-+	struct pt_regs *regs)
-+{
-+	struct task_struct *task = current;
-+	long err;
-+	/* sc_regs is structured the same as the start of pt_regs */
-+	err = __copy_to_user(&sc->sc_regs, regs, sizeof(sc->sc_regs));
-+	fstate_save(task, regs);
-+	err |= __copy_to_user(&sc->sc_fpregs, &task->thread.fstate,
-+		sizeof(sc->sc_fpregs));
-+	return err;
-+}
-+
-+static inline void __user *get_sigframe(struct ksignal *ksig,
-+	struct pt_regs *regs, size_t framesize)
-+{
-+	unsigned long sp;
-+	/* Default to using normal stack */
-+	sp = regs->sp;
-+
-+	/*
-+	 * If we are on the alternate signal stack and would overflow it, don't.
-+	 * Return an always-bogus address instead so we will die with SIGSEGV.
-+	 */
-+	if (on_sig_stack(sp) && !likely(on_sig_stack(sp - framesize)))
-+		return (void __user __force *)(-1UL);
-+
-+	/* This is the X/Open sanctioned signal stack switching. */
-+	sp = sigsp(sp, ksig) - framesize;
-+
-+	/* Align the stack frame. */
-+	sp &= ~0xfUL;
-+
-+	return (void __user *)sp;
-+}
-+
-+
-+static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
-+	struct pt_regs *regs)
-+{
-+	struct rt_sigframe __user *frame;
-+	long err = 0;
-+
-+	frame = get_sigframe(ksig, regs, sizeof(*frame));
-+	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-+		return -EFAULT;
-+
-+	err |= copy_siginfo_to_user(&frame->info, &ksig->info);
-+
-+	/* Create the ucontext. */
-+	err |= __put_user(0, &frame->uc.uc_flags);
-+	err |= __put_user(NULL, &frame->uc.uc_link);
-+	err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
-+	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);
-+	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-+	if (err)
-+		return -EFAULT;
-+
-+	/* Set up to return from userspace. */
-+	regs->ra = (unsigned long)VDSO_SYMBOL(
-+		current->mm->context.vdso, rt_sigreturn);
-+
-+	/*
-+	 * Set up registers for signal handler.
-+	 * Registers that we don't modify keep the value they had from
-+	 * user-space at the time we took the signal.
-+	 * We always pass siginfo and mcontext, regardless of SA_SIGINFO,
-+	 * since some things rely on this (e.g. glibc's debug/segfault.c).
-+	 */
-+	regs->sepc = (unsigned long)ksig->ka.sa.sa_handler;
-+	regs->sp = (unsigned long)frame;
-+	regs->a0 = ksig->sig;                     /* a0: signal number */
-+	regs->a1 = (unsigned long)(&frame->info); /* a1: siginfo pointer */
-+	regs->a2 = (unsigned long)(&frame->uc);   /* a2: ucontext pointer */
-+
-+#if DEBUG_SIG
-+	pr_info("SIG deliver (%s:%d): sig=%d pc=%p ra=%p sp=%p\n",
-+		current->comm, task_pid_nr(current), ksig->sig,
-+		(void *)regs->sepc, (void *)regs->ra, frame);
-+#endif
-+
-+	return 0;
-+}
-+
-+static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
-+{
-+	sigset_t *oldset = sigmask_to_save();
-+	int ret;
-+
-+	/* Are we from a system call? */
-+	if (regs->scause == EXC_SYSCALL) {
-+		/* If so, check system call restarting.. */
-+		switch (regs->a0) {
-+		case -ERESTART_RESTARTBLOCK:
-+		case -ERESTARTNOHAND:
-+			regs->a0 = -EINTR;
-+			break;
-+
-+		case -ERESTARTSYS:
-+			if (!(ksig->ka.sa.sa_flags & SA_RESTART)) {
-+				regs->a0 = -EINTR;
-+				break;
-+			}
-+			/* fallthrough */
-+		case -ERESTARTNOINTR:
-+			regs->sepc -= 0x4;
-+			break;
-+		}
-+	}
-+
-+	/* Set up the stack frame */
-+	ret = setup_rt_frame(ksig, oldset, regs);
-+
-+	signal_setup_done(ret, ksig, 0);
-+}
-+
-+static void do_signal(struct pt_regs *regs)
-+{
-+	struct ksignal ksig;
-+
-+	if (get_signal(&ksig)) {
-+		/* Actually deliver the signal */
-+		handle_signal(&ksig, regs);
-+		return;
-+	}
-+
-+	/* Did we come from a system call? */
-+	if (regs->scause == EXC_SYSCALL) {
-+		/* Restart the system call - no handlers present */
-+		switch (regs->a0) {
-+		case -ERESTARTNOHAND:
-+		case -ERESTARTSYS:
-+		case -ERESTARTNOINTR:
-+			regs->sepc -= 0x4;
-+			break;
-+		case -ERESTART_RESTARTBLOCK:
-+			regs->a7 = __NR_restart_syscall;
-+			regs->sepc -= 0x4;
-+			break;
-+		}
-+	}
-+
-+	/* If there is no signal to deliver, we just put the saved
-+	   sigmask back. */
-+	restore_saved_sigmask();
-+}
-+
-+/*
-+ * notification of userspace execution resumption
-+ * - triggered by the _TIF_WORK_MASK flags
-+ */
-+asmlinkage void do_notify_resume(struct pt_regs *regs,
-+	unsigned long thread_info_flags)
-+{
-+	/* Handle pending signal delivery */
-+	if (thread_info_flags & _TIF_SIGPENDING) {
-+		do_signal(regs);
-+	}
-+
-+	if (thread_info_flags & _TIF_NOTIFY_RESUME) {
-+		clear_thread_flag(TIF_NOTIFY_RESUME);
-+		tracehook_notify_resume(regs);
-+	}
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/smpboot.c linux-4.6.2.riscv/arch/riscv/kernel/smpboot.c
---- linux-4.6.2/arch/riscv/kernel/smpboot.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/smpboot.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,72 @@
-+#include <linux/module.h>
-+#include <linux/init.h>
-+#include <linux/kernel.h>
-+#include <linux/mm.h>
-+#include <linux/sched.h>
-+#include <linux/kernel_stat.h>
-+#include <linux/notifier.h>
-+#include <linux/cpu.h>
-+#include <linux/percpu.h>
-+#include <linux/delay.h>
-+#include <linux/err.h>
-+#include <linux/irq.h>
-+#include <asm/mmu_context.h>
-+#include <asm/tlbflush.h>
-+#include <asm/sections.h>
-+#include <asm/sbi.h>
-+
-+void *__cpu_up_stack_pointer[NR_CPUS];
-+
-+void __init smp_prepare_boot_cpu(void)
-+{
-+}
-+
-+void __init smp_prepare_cpus(unsigned int max_cpus)
-+{
-+}
-+
-+void __init setup_smp(void)
-+{
-+	int i, num_cpus = sbi_num_harts();
-+
-+	for (i = 0; i < min(num_cpus, NR_CPUS); i++) {
-+		set_cpu_possible(i, true);
-+		set_cpu_present(i, true);
-+	}
-+}
-+
-+int __cpu_up(unsigned int cpu, struct task_struct *tidle)
-+{
-+	/* Signal cpu to start */
-+	__cpu_up_stack_pointer[cpu] = task_stack_page(tidle) + THREAD_SIZE;
-+
-+	while (!cpu_online(cpu))
-+		;
-+	
-+	return 0;
-+}
-+
-+void __init smp_cpus_done(unsigned int max_cpus)
-+{
-+}
-+
-+/*
-+ * C entry point for a secondary processor.
-+ */
-+asmlinkage void __init smp_callin(void)
-+{
-+	struct mm_struct *mm = &init_mm;
-+
-+	/* All kernel threads share the same mm context.  */
-+	atomic_inc(&mm->mm_count);
-+	current->active_mm = mm;
-+
-+	trap_init();
-+	init_clockevent();
-+	notify_cpu_starting(smp_processor_id());
-+	set_cpu_online(smp_processor_id(), 1);
-+	local_flush_tlb_all();
-+	local_irq_enable();
-+	preempt_disable();
-+	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/smp.c linux-4.6.2.riscv/arch/riscv/kernel/smp.c
---- linux-4.6.2/arch/riscv/kernel/smp.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/smp.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,85 @@
-+#include <linux/interrupt.h>
-+#include <linux/smp.h>
-+#include <linux/sched.h>
-+
-+#include <asm/sbi.h>
-+#include <asm/tlbflush.h>
-+#include <asm/cacheflush.h>
-+
-+/* A collection of single bit ipi messages.  */
-+static struct {
-+	unsigned long bits ____cacheline_aligned;
-+} ipi_data[NR_CPUS] __cacheline_aligned;
-+
-+enum ipi_message_type {
-+	IPI_RESCHEDULE,
-+	IPI_CALL_FUNC,
-+	IPI_MAX
-+};
-+
-+irqreturn_t handle_ipi(void)
-+{
-+	unsigned long *pending_ipis = &ipi_data[smp_processor_id()].bits;
-+	unsigned long ops;
-+
-+	/* Clear pending IPI */
-+	if (!sbi_clear_ipi())
-+		return IRQ_NONE;
-+
-+	mb();	/* Order interrupt and bit testing. */
-+	while ((ops = xchg(pending_ipis, 0)) != 0) {
-+		mb();	/* Order bit clearing and data access. */
-+
-+		if (ops & (1 << IPI_RESCHEDULE))
-+			scheduler_ipi();
-+
-+		if (ops & (1 << IPI_CALL_FUNC))
-+			generic_smp_call_function_interrupt();
-+
-+		BUG_ON((ops >> IPI_MAX) != 0);
-+
-+		mb();	/* Order data access and bit testing. */
-+	}
-+
-+	return IRQ_HANDLED;
-+}
-+
-+static void
-+send_ipi_message(const struct cpumask *to_whom, enum ipi_message_type operation)
-+{
-+	int i;
-+
-+	mb();
-+	for_each_cpu(i, to_whom)
-+		set_bit(operation, &ipi_data[i].bits);
-+
-+	mb();
-+	for_each_cpu(i, to_whom)
-+		sbi_send_ipi(i);
-+}
-+
-+void arch_send_call_function_ipi_mask(struct cpumask *mask)
-+{
-+	send_ipi_message(mask, IPI_CALL_FUNC);
-+}
-+
-+void arch_send_call_function_single_ipi(int cpu)
-+{
-+	send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC);
-+}
-+
-+static void ipi_stop(void *unused)
-+{
-+	while (1)
-+		wait_for_interrupt();
-+}
-+
-+void smp_send_stop(void)
-+{
-+	on_each_cpu(ipi_stop, NULL, 1);
-+}
-+
-+void smp_send_reschedule(int cpu)
-+{
-+	send_ipi_message(cpumask_of(cpu), IPI_RESCHEDULE);
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/stacktrace.c linux-4.6.2.riscv/arch/riscv/kernel/stacktrace.c
---- linux-4.6.2/arch/riscv/kernel/stacktrace.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/stacktrace.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,163 @@
-+#include <linux/export.h>
-+#include <linux/kallsyms.h>
-+#include <linux/sched.h>
-+#include <linux/stacktrace.h>
-+
-+#ifdef CONFIG_FRAME_POINTER
-+
-+struct stackframe {
-+	unsigned long fp;
-+	unsigned long ra;
-+};
-+
-+static void notrace walk_stackframe(struct task_struct *task,
-+	struct pt_regs *regs, bool (*fn)(unsigned long, void *), void *arg)
-+{
-+	unsigned long fp, sp, pc;
-+
-+	if (regs) {
-+		fp = GET_FP(regs);
-+		sp = GET_USP(regs);
-+		pc = GET_IP(regs);
-+	} else if (task == NULL || task == current) {
-+		const register unsigned long current_sp __asm__ ("sp");
-+		fp = (unsigned long)__builtin_frame_address(0);
-+		sp = current_sp;
-+		pc = (unsigned long)walk_stackframe;
-+	} else {
-+		/* task blocked in __switch_to */
-+		fp = task->thread.s[0];
-+		sp = task->thread.sp;
-+		pc = task->thread.ra;
-+	}
-+
-+	for (;;) {
-+		unsigned long low, high;
-+		struct stackframe *frame;
-+
-+		if (unlikely(!__kernel_text_address(pc) || fn(pc, arg)))
-+			break;
-+
-+		/* Validate frame pointer */
-+		low = sp + sizeof(struct stackframe);
-+		high = ALIGN(sp, THREAD_SIZE);
-+		if (unlikely(fp < low || fp > high || fp & 0x7))
-+			break;
-+		/* Unwind stack frame */
-+		frame = (struct stackframe *)fp - 1;
-+		sp = fp;
-+		fp = frame->fp;
-+		pc = frame->ra - 0x4;
-+	}
-+}
-+
-+#else /* !CONFIG_FRAME_POINTER */
-+
-+static void notrace walk_stackframe(struct task_struct *task,
-+	struct pt_regs *regs, bool (*fn)(unsigned long, void *), void *arg)
-+{
-+	unsigned long sp, pc;
-+	unsigned long *ksp;
-+
-+	if (regs) {
-+		sp = GET_USP(regs);
-+		pc = GET_IP(regs);
-+	} else if (task == NULL || task == current) {
-+		const register unsigned long current_sp __asm__ ("sp");
-+		sp = current_sp;
-+		pc = (unsigned long)walk_stackframe;
-+	} else {
-+		/* task blocked in __switch_to */
-+		sp = task->thread.sp;
-+		pc = task->thread.ra;
-+	}
-+
-+	if (unlikely(sp & 0x7))
-+		return;
-+
-+	ksp = (unsigned long *)sp;
-+	while (!kstack_end(ksp)) {
-+		if (__kernel_text_address(pc) && unlikely(fn(pc, arg))) {
-+			break;
-+		}
-+		pc = (*ksp++) - 0x4;
-+	}
-+}
-+
-+#endif /* CONFIG_FRAME_POINTER */
-+
-+
-+static bool print_trace_address(unsigned long pc, void *arg)
-+{
-+	print_ip_sym(pc);
-+	return false;
-+}
-+
-+void show_stack(struct task_struct *task, unsigned long *sp)
-+{
-+	printk("Call Trace:\n");
-+	walk_stackframe(task, NULL, print_trace_address, NULL);
-+}
-+
-+
-+static bool save_wchan(unsigned long pc, void *arg)
-+{
-+	if (!in_sched_functions(pc)) {
-+		unsigned long *p = arg;
-+		*p = pc;
-+		return true;
-+	}
-+	return false;
-+}
-+
-+unsigned long get_wchan(struct task_struct *task)
-+{
-+	unsigned long pc;
-+	pc = 0;
-+	if (likely(task && task != current && task->state != TASK_RUNNING)) {
-+		walk_stackframe(task, NULL, save_wchan, &pc);
-+	}
-+	return pc;
-+}
-+
-+
-+#ifdef CONFIG_STACKTRACE
-+
-+static bool __save_trace(unsigned long pc, void *arg, bool nosched)
-+{
-+	struct stack_trace *trace = arg;
-+
-+	if (unlikely(nosched && in_sched_functions(pc)))
-+		return false;
-+	if (unlikely(trace->skip > 0)) {
-+		trace->skip--;
-+		return false;
-+	}
-+
-+	trace->entries[trace->nr_entries++] = pc;
-+	return (trace->nr_entries >= trace->max_entries);
-+}
-+
-+static bool save_trace(unsigned long pc, void *arg)
-+{
-+	return __save_trace(pc, arg, false);
-+}
-+
-+/*
-+ * Save stack-backtrace addresses into a stack_trace buffer.
-+ */
-+void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
-+{
-+	walk_stackframe(tsk, NULL, save_trace, trace);
-+	if (trace->nr_entries < trace->max_entries)
-+		trace->entries[trace->nr_entries++] = ULONG_MAX;
-+}
-+EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
-+
-+void save_stack_trace(struct stack_trace *trace)
-+{
-+	save_stack_trace_tsk(NULL, trace);
-+}
-+EXPORT_SYMBOL_GPL(save_stack_trace);
-+
-+#endif /* CONFIG_STACKTRACE */
-diff -Nur linux-4.6.2/arch/riscv/kernel/syscall_table.c linux-4.6.2.riscv/arch/riscv/kernel/syscall_table.c
---- linux-4.6.2/arch/riscv/kernel/syscall_table.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/syscall_table.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,10 @@
-+#include <linux/syscalls.h>
-+
-+#include <asm/syscalls.h>
-+
-+#undef __SYSCALL
-+#define __SYSCALL(nr, call) [nr] = (call),
-+
-+void *sys_call_table[__NR_syscalls] = {
-+#include <asm/unistd.h>
-+};
-diff -Nur linux-4.6.2/arch/riscv/kernel/sys_riscv.c linux-4.6.2.riscv/arch/riscv/kernel/sys_riscv.c
---- linux-4.6.2/arch/riscv/kernel/sys_riscv.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/sys_riscv.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,70 @@
-+#include <linux/syscalls.h>
-+#include <asm/unistd.h>
-+
-+SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
-+	unsigned long, prot, unsigned long, flags,
-+	unsigned long, fd, off_t, offset)
-+{
-+	if (unlikely(offset & (~PAGE_MASK)))
-+		return -EINVAL;
-+	return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
-+}
-+
-+#ifndef CONFIG_64BIT
-+SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
-+	unsigned long, prot, unsigned long, flags,
-+	unsigned long, fd, off_t, offset)
-+{
-+	/* Note that the shift for mmap2 is constant (12),
-+	   regardless of PAGE_SIZE */
-+	if (unlikely(offset & (~PAGE_MASK >> 12)))
-+		return -EINVAL;
-+	return sys_mmap_pgoff(addr, len, prot, flags, fd,
-+		offset >> (PAGE_SHIFT - 12));
-+}
-+#endif /* !CONFIG_64BIT */
-+
-+#ifdef CONFIG_RV_SYSRISCV_ATOMIC
-+SYSCALL_DEFINE4(sysriscv, unsigned long, cmd, unsigned long, arg1,
-+	unsigned long, arg2, unsigned long, arg3)
-+{
-+	unsigned long flags;
-+	unsigned long prev;
-+	unsigned int *ptr;
-+	unsigned int err;
-+
-+	switch (cmd) {
-+	case RISCV_ATOMIC_CMPXCHG:
-+		ptr = (unsigned int *)arg1;
-+		if (!access_ok(VERIFY_WRITE, ptr, sizeof(unsigned int)))
-+			return -EFAULT;
-+
-+		preempt_disable();
-+		raw_local_irq_save(flags);
-+		err = __get_user(prev, ptr);
-+		if (likely(!err && prev == arg2))
-+			err = __put_user(arg3, ptr);
-+		raw_local_irq_restore(flags);
-+		preempt_enable();
-+
-+		return unlikely(err) ? err : prev;
-+
-+	case RISCV_ATOMIC_CMPXCHG64:
-+		ptr = (unsigned int *)arg1;
-+		if (!access_ok(VERIFY_WRITE, ptr, sizeof(unsigned long)))
-+			return -EFAULT;
-+
-+		preempt_disable();
-+		raw_local_irq_save(flags);
-+		err = __get_user(prev, ptr);
-+		if (likely(!err && prev == arg2))
-+			err = __put_user(arg3, ptr);
-+		raw_local_irq_restore(flags);
-+		preempt_enable();
-+
-+		return unlikely(err) ? err : prev;
-+	}
-+
-+	return -EINVAL;
-+}
-+#endif /* CONFIG_RV_SYSRISCV_ATOMIC */
-diff -Nur linux-4.6.2/arch/riscv/kernel/time.c linux-4.6.2.riscv/arch/riscv/kernel/time.c
---- linux-4.6.2/arch/riscv/kernel/time.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/time.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,88 @@
-+#include <linux/clocksource.h>
-+#include <linux/clockchips.h>
-+#include <linux/interrupt.h>
-+#include <linux/irq.h>
-+#include <linux/delay.h>
-+
-+#include <asm/irq.h>
-+#include <asm/csr.h>
-+#include <asm/sbi.h>
-+#include <asm/delay.h>
-+
-+unsigned long timebase;
-+
-+static DEFINE_PER_CPU(struct clock_event_device, clock_event);
-+
-+static int riscv_timer_set_next_event(unsigned long delta,
-+	struct clock_event_device *evdev)
-+{
-+	sbi_set_timer(get_cycles() + delta);
-+	return 0;
-+}
-+
-+static int riscv_timer_set_oneshot(struct clock_event_device *evt)
-+{
-+	/* no-op; only one mode */
-+	return 0;
-+}
-+
-+static int riscv_timer_set_shutdown(struct clock_event_device *evt)
-+{
-+	/* can't stop the clock! */
-+	return 0;
-+}
-+
-+static cycle_t riscv_rdtime(struct clocksource *cs)
-+{
-+	return get_cycles();
-+}
-+
-+static struct clocksource riscv_clocksource = {
-+	.name = "riscv_clocksource",
-+	.rating = 300,
-+	.read = riscv_rdtime,
-+#ifdef CONFIG_64BITS
-+	.mask = CLOCKSOURCE_MASK(64),
-+#else
-+	.mask = CLOCKSOURCE_MASK(32),
-+#endif /* CONFIG_64BITS */
-+	.flags = CLOCK_SOURCE_IS_CONTINUOUS,
-+};
-+
-+void riscv_timer_interrupt(void)
-+{
-+	int cpu = smp_processor_id();
-+	struct clock_event_device *evdev = &per_cpu(clock_event, cpu);
-+	evdev->event_handler(evdev);
-+}
-+
-+void __init init_clockevent(void)
-+{
-+	int cpu = smp_processor_id();
-+	struct clock_event_device *ce = &per_cpu(clock_event, cpu);
-+
-+	*ce = (struct clock_event_device){
-+		.name = "riscv_timer_clockevent",
-+		.features = CLOCK_EVT_FEAT_ONESHOT,
-+		.rating = 300,
-+		.cpumask = cpumask_of(cpu),
-+		.set_next_event = riscv_timer_set_next_event,
-+		.set_state_oneshot  = riscv_timer_set_oneshot,
-+		.set_state_shutdown = riscv_timer_set_shutdown,
-+	};
-+
-+	clockevents_config_and_register(ce, sbi_timebase(), 100, 0x7fffffff);
-+}
-+
-+void __init time_init(void)
-+{
-+	timebase = sbi_timebase();
-+	lpj_fine = timebase;
-+	do_div(lpj_fine, HZ);
-+
-+	clocksource_register_hz(&riscv_clocksource, timebase);
-+	init_clockevent();
-+
-+	/* Enable timer interrupts. */
-+	csr_set(sie, SIE_STIE);
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/traps.c linux-4.6.2.riscv/arch/riscv/kernel/traps.c
---- linux-4.6.2/arch/riscv/kernel/traps.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/traps.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,146 @@
-+#include <linux/kernel.h>
-+#include <linux/init.h>
-+#include <linux/sched.h>
-+#include <linux/signal.h>
-+#include <linux/kdebug.h>
-+#include <linux/uaccess.h>
-+#include <linux/mm.h>
-+#include <linux/module.h>
-+
-+#include <asm/processor.h>
-+#include <asm/ptrace.h>
-+#include <asm/csr.h>
-+
-+int show_unhandled_signals = 1;
-+
-+extern asmlinkage void handle_exception(void);
-+
-+static DEFINE_SPINLOCK(die_lock);
-+
-+void die(struct pt_regs *regs, const char *str)
-+{
-+	static int die_counter;
-+	int ret;
-+
-+	oops_enter();
-+
-+	spin_lock_irq(&die_lock);
-+	console_verbose();
-+	bust_spinlocks(1);
-+
-+	pr_emerg("%s [#%d]\n", str, ++die_counter);
-+	print_modules();
-+	show_regs(regs);
-+
-+	ret = notify_die(DIE_OOPS, str, regs, 0, regs->scause, SIGSEGV);
-+
-+	bust_spinlocks(0);
-+	add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
-+	spin_unlock_irq(&die_lock);
-+	oops_exit();
-+
-+	if (in_interrupt())
-+		panic("Fatal exception in interrupt");
-+	if (panic_on_oops)
-+		panic("Fatal exception");
-+	if (ret != NOTIFY_STOP)
-+		do_exit(SIGSEGV);
-+}
-+
-+static inline void do_trap_siginfo(int signo, int code,
-+	unsigned long addr, struct task_struct *tsk)
-+{
-+	siginfo_t info;
-+
-+	info.si_signo = signo;
-+	info.si_errno = 0;
-+	info.si_code = code;
-+	info.si_addr = (void __user *)addr;
-+	force_sig_info(signo, &info, tsk);
-+}
-+
-+void do_trap(struct pt_regs *regs, int signo, int code,
-+	unsigned long addr, struct task_struct *tsk)
-+{
-+	if (show_unhandled_signals && unhandled_signal(tsk, signo)
-+	    && printk_ratelimit()) {
-+		pr_info("%s[%d]: unhandled signal %d code 0x%x at 0x" REG_FMT,
-+			tsk->comm, task_pid_nr(tsk), signo, code, addr);
-+		print_vma_addr(KERN_CONT " in ", GET_IP(regs));
-+		pr_cont("\n");
-+		show_regs(regs);
-+	}
-+
-+	do_trap_siginfo(signo, code, addr, tsk);
-+}
-+
-+static void do_trap_error(struct pt_regs *regs, int signo, int code,
-+	unsigned long addr, const char *str)
-+{
-+	if (user_mode(regs)) {
-+		do_trap(regs, signo, code, addr, current);
-+	} else {
-+		if (!fixup_exception(regs))
-+			die(regs, str);
-+	}
-+}
-+
-+#define DO_ERROR_INFO(name, signo, code, str)				\
-+asmlinkage void name(struct pt_regs *regs)				\
-+{									\
-+	do_trap_error(regs, signo, code, regs->sepc, "Oops - " str);	\
-+}
-+
-+DO_ERROR_INFO(do_trap_unknown,
-+	SIGILL, ILL_ILLTRP, "unknown exception");
-+DO_ERROR_INFO(do_trap_amo_misaligned,
-+	SIGBUS, BUS_ADRALN, "AMO address misaligned");
-+DO_ERROR_INFO(do_trap_insn_misaligned,
-+	SIGBUS, BUS_ADRALN, "instruction address misaligned");
-+DO_ERROR_INFO(do_trap_insn_illegal,
-+	SIGILL, ILL_ILLOPC, "illegal instruction");
-+
-+asmlinkage void do_trap_break(struct pt_regs *regs)
-+{
-+#ifdef CONFIG_GENERIC_BUG
-+	if (!user_mode(regs)) {
-+		enum bug_trap_type type;
-+
-+		type = report_bug(regs->sepc, regs);
-+		switch (type) {
-+		case BUG_TRAP_TYPE_NONE:
-+			break;
-+		case BUG_TRAP_TYPE_WARN:
-+			regs->sepc += sizeof(bug_insn_t);
-+			return;
-+		case BUG_TRAP_TYPE_BUG:
-+			die(regs, "Kernel BUG");
-+		}
-+	}
-+#endif /* CONFIG_GENERIC_BUG */
-+
-+	do_trap_siginfo(SIGTRAP, TRAP_BRKPT, regs->sepc, current);
-+	regs->sepc += 0x4;
-+}
-+
-+#ifdef CONFIG_GENERIC_BUG
-+int is_valid_bugaddr(unsigned long pc)
-+{
-+	bug_insn_t insn;
-+
-+	if (pc < PAGE_OFFSET)
-+		return 0;
-+	if (probe_kernel_address((bug_insn_t __user *)pc, insn))
-+		return 0;
-+	return (insn == __BUG_INSN);
-+}
-+#endif /* CONFIG_GENERIC_BUG */
-+
-+void __init trap_init(void)
-+{
-+	/* Set sup0 scratch register to 0, indicating to exception vector
-+	   that we are presently executing in the kernel */
-+	csr_write(sscratch, 0);
-+	/* Set the exception vector address */
-+	csr_write(stvec, &handle_exception);
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/vdso/.gitignore linux-4.6.2.riscv/arch/riscv/kernel/vdso/.gitignore
---- linux-4.6.2/arch/riscv/kernel/vdso/.gitignore	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/vdso/.gitignore	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1 @@
-+vdso.lds
-diff -Nur linux-4.6.2/arch/riscv/kernel/vdso/Makefile linux-4.6.2.riscv/arch/riscv/kernel/vdso/Makefile
---- linux-4.6.2/arch/riscv/kernel/vdso/Makefile	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/vdso/Makefile	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,61 @@
-+# Derived from arch/{arm64,tile}/kernel/vdso/Makefile
-+
-+obj-vdso := sigreturn.o
-+
-+# Build rules
-+targets := $(obj-vdso) vdso.so vdso.so.dbg
-+obj-vdso := $(addprefix $(obj)/, $(obj-vdso))
-+
-+#ccflags-y := -shared -fno-common -fno-builtin
-+#ccflags-y += -nostdlib -Wl,-soname=linux-vdso.so.1 \
-+		$(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
-+
-+CFLAGS_vdso.so = $(c_flags)
-+CFLAGS_vdso.so.dbg = -shared -s -Wl,-soname=linux-vdso.so.1 \
-+	$(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
-+CFLAGS_vdso_syms.o = -r
-+
-+obj-y += vdso.o
-+
-+# We also create a special relocatable object that should mirror the symbol
-+# table and layout of the linked DSO.  With ld -R we can then refer to
-+# these symbols in the kernel code rather than hand-coded addresses.
-+extra-y += vdso.lds vdso-syms.o
-+$(obj)/built-in.o: $(obj)/vdso-syms.o
-+$(obj)/built-in.o: ld_flags += -R $(obj)/vdso-syms.o
-+
-+CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
-+
-+# Force dependency
-+$(obj)/vdso.o : $(obj)/vdso.so
-+
-+# Link rule for the *.so file; *.lds must be first
-+$(obj)/vdso.so.dbg: $(src)/vdso.lds $(obj-vdso)
-+	$(call if_changed,vdsold)
-+$(obj)/vdso-syms.o: $(src)/vdso.lds $(obj-vdso)
-+	$(call if_changed,vdsold)
-+
-+# Strip rule for the *.so file
-+$(obj)/%.so: OBJCOPYFLAGS := -S
-+$(obj)/%.so: $(obj)/%.so.dbg FORCE
-+	$(call if_changed,objcopy)
-+
-+# Assembly rules for the *.S files
-+$(obj-vdso): %.o: %.S
-+	$(call if_changed_dep,vdsoas)
-+
-+# Actual build commands
-+quiet_cmd_vdsold = VDSOLD  $@
-+      cmd_vdsold = $(CC) $(c_flags) -nostdlib $(CFLAGS_$(@F)) -Wl,-n -Wl,-T $^ -o $@
-+quiet_cmd_vdsoas = VDSOAS  $@
-+      cmd_vdsoas = $(CC) $(a_flags) -c -o $@ $<
-+
-+# Install commands for the unstripped file
-+quiet_cmd_vdso_install = INSTALL $@
-+      cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
-+
-+vdso.so: $(obj)/vdso.so.dbg
-+	@mkdir -p $(MODLIB)/vdso
-+	$(call cmd,vdso_install)
-+
-+vdso_install: vdso.so
-diff -Nur linux-4.6.2/arch/riscv/kernel/vdso/sigreturn.S linux-4.6.2.riscv/arch/riscv/kernel/vdso/sigreturn.S
---- linux-4.6.2/arch/riscv/kernel/vdso/sigreturn.S	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/vdso/sigreturn.S	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,11 @@
-+#include <linux/linkage.h>
-+#include <asm/unistd.h>
-+
-+	.text
-+ENTRY(__vdso_rt_sigreturn)
-+	.cfi_startproc
-+	.cfi_signal_frame
-+	li a7, __NR_rt_sigreturn
-+	scall
-+	.cfi_endproc
-+ENDPROC(__vdso_rt_sigreturn)
-diff -Nur linux-4.6.2/arch/riscv/kernel/vdso/vdso.lds.S linux-4.6.2.riscv/arch/riscv/kernel/vdso/vdso.lds.S
---- linux-4.6.2/arch/riscv/kernel/vdso/vdso.lds.S	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/vdso/vdso.lds.S	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,63 @@
-+OUTPUT_ARCH(riscv)
-+
-+SECTIONS
-+{
-+	. = SIZEOF_HEADERS;
-+
-+	.hash		: { *(.hash) }			:text
-+	.gnu.hash	: { *(.gnu.hash) }
-+	.dynsym		: { *(.dynsym) }
-+	.dynstr		: { *(.dynstr) }
-+	.gnu.version	: { *(.gnu.version) }
-+	.gnu.version_d	: { *(.gnu.version_d) }
-+	.gnu.version_r	: { *(.gnu.version_r) }
-+
-+	.note		: { *(.note.*) }		:text	:note
-+	.dynamic	: { *(.dynamic) }		:text	:dynamic
-+
-+	.eh_frame_hdr	: { *(.eh_frame_hdr) }		:text	:eh_frame_hdr
-+	.eh_frame	: { KEEP (*(.eh_frame)) }	:text
-+
-+	.rodata		: { *(.rodata .rodata.* .gnu.linkonce.r.*) }
-+
-+	/*
-+	 * This linker script is used both with -r and with -shared.
-+	 * For the layouts to match, we need to skip more than enough
-+	 * space for the dynamic symbol table, etc. If this amount is
-+	 * insufficient, ld -shared will error; simply increase it here.
-+	 */
-+	. = 0x800;
-+	.text		: { *(.text .text.*) }		:text
-+
-+	.data		: {
-+		*(.got.plt) *(.got)
-+		*(.data .data.* .gnu.linkonce.d.*)
-+		*(.dynbss)
-+		*(.bss .bss.* .gnu.linkonce.b.*)
-+	}
-+}
-+
-+/*
-+ * We must supply the ELF program headers explicitly to get just one
-+ * PT_LOAD segment, and set the flags explicitly to make segments read-only.
-+ */
-+PHDRS
-+{
-+	text		PT_LOAD		FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
-+	dynamic		PT_DYNAMIC	FLAGS(4);		/* PF_R */
-+	note		PT_NOTE		FLAGS(4);		/* PF_R */
-+	eh_frame_hdr	PT_GNU_EH_FRAME;
-+}
-+
-+/*
-+ * This controls what symbols we export from the DSO.
-+ */
-+VERSION
-+{
-+	LINUX_2.6 {
-+	global:
-+		__vdso_rt_sigreturn;
-+	local: *;
-+	};
-+}
-+
-diff -Nur linux-4.6.2/arch/riscv/kernel/vdso/vdso.S linux-4.6.2.riscv/arch/riscv/kernel/vdso/vdso.S
---- linux-4.6.2/arch/riscv/kernel/vdso/vdso.S	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/vdso/vdso.S	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,14 @@
-+#include <linux/init.h>
-+#include <linux/linkage.h>
-+#include <asm/page.h>
-+
-+	__PAGE_ALIGNED_DATA
-+
-+	.globl vdso_start, vdso_end
-+	.balign PAGE_SIZE
-+vdso_start:
-+	.incbin "arch/riscv/kernel/vdso/vdso.so"
-+	.balign PAGE_SIZE
-+vdso_end:
-+
-+	.previous
-diff -Nur linux-4.6.2/arch/riscv/kernel/vdso.c linux-4.6.2.riscv/arch/riscv/kernel/vdso.c
---- linux-4.6.2/arch/riscv/kernel/vdso.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/vdso.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,106 @@
-+#include <linux/mm.h>
-+#include <linux/slab.h>
-+#include <linux/binfmts.h>
-+#include <linux/err.h>
-+
-+#include <asm/vdso.h>
-+
-+extern char vdso_start[], vdso_end[];
-+
-+static unsigned int vdso_pages;
-+static struct page **vdso_pagelist;
-+
-+/*
-+ * The vDSO data page.
-+ */
-+static union {
-+	struct vdso_data	data;
-+	u8			page[PAGE_SIZE];
-+} vdso_data_store __page_aligned_data;
-+struct vdso_data *vdso_data = &vdso_data_store.data;
-+
-+static int __init vdso_init(void)
-+{
-+	unsigned int i;
-+
-+	vdso_pages = (vdso_end - vdso_start) >> PAGE_SHIFT;
-+	vdso_pagelist = kzalloc(sizeof(struct page *) * (vdso_pages + 1), GFP_KERNEL);
-+	if (unlikely(vdso_pagelist == NULL)) {
-+		pr_err("vdso: pagelist allocation failed\n");
-+		return -ENOMEM;
-+	}
-+
-+	for (i = 0; i < vdso_pages; i++) {
-+		struct page *pg;
-+		pg = virt_to_page(vdso_start + (i << PAGE_SHIFT));
-+		ClearPageReserved(pg);
-+		vdso_pagelist[i] = pg;
-+	}
-+	vdso_pagelist[i] = virt_to_page(vdso_data);
-+
-+	return 0;
-+}
-+arch_initcall(vdso_init);
-+
-+int arch_setup_additional_pages(struct linux_binprm *bprm,
-+	int uses_interp)
-+{
-+	struct mm_struct *mm = current->mm;
-+	unsigned long vdso_base, vdso_len;
-+	int ret;
-+
-+	vdso_len = (vdso_pages + 1) << PAGE_SHIFT;
-+
-+	down_write(&mm->mmap_sem);
-+	vdso_base = get_unmapped_area(NULL, 0, vdso_len, 0, 0);
-+	if (unlikely(IS_ERR_VALUE(vdso_base))) {
-+		ret = vdso_base;
-+		goto end;
-+	}
-+
-+	/*
-+	 * Put vDSO base into mm struct. We need to do this before calling
-+	 * install_special_mapping or the perf counter mmap tracking code
-+	 * will fail to recognise it as a vDSO (since arch_vma_name fails).
-+	 */
-+	mm->context.vdso = (void *)vdso_base;
-+
-+	ret = install_special_mapping(mm, vdso_base, vdso_len,
-+		(VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC),
-+		vdso_pagelist);
-+
-+	if (unlikely(ret)) {
-+		mm->context.vdso = NULL;
-+	}
-+
-+end:
-+	up_write(&mm->mmap_sem);
-+	return ret;
-+}
-+
-+const char *arch_vma_name(struct vm_area_struct *vma)
-+{
-+	if (vma->vm_mm && (vma->vm_start == (long)vma->vm_mm->context.vdso)) {
-+		return "[vdso]";
-+	}
-+	return NULL;
-+}
-+
-+/*
-+ * Function stubs to prevent linker errors when AT_SYSINFO_EHDR is defined
-+ */
-+
-+int in_gate_area_no_mm(unsigned long addr)
-+{
-+	return 0;
-+}
-+
-+int in_gate_area(struct mm_struct *mm, unsigned long addr)
-+{
-+	return 0;
-+}
-+
-+struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
-+{
-+	return NULL;
-+}
-diff -Nur linux-4.6.2/arch/riscv/kernel/vmlinux.lds.S linux-4.6.2.riscv/arch/riscv/kernel/vmlinux.lds.S
---- linux-4.6.2/arch/riscv/kernel/vmlinux.lds.S	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/kernel/vmlinux.lds.S	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,75 @@
-+#define LOAD_OFFSET PAGE_OFFSET
-+#include <asm/vmlinux.lds.h>
-+#include <asm/page.h>
-+#include <asm/cache.h>
-+#include <asm/thread_info.h>
-+
-+OUTPUT_ARCH(riscv)
-+ENTRY(_start)
-+
-+jiffies = jiffies_64;
-+
-+SECTIONS
-+{
-+	/* Beginning of code and text segment */
-+	. = LOAD_OFFSET;
-+	_start = .;
-+	__init_begin = .;
-+	HEAD_TEXT_SECTION
-+	INIT_TEXT_SECTION(PAGE_SIZE)
-+	INIT_DATA_SECTION(16)
-+	/* we have to discard exit text and such at runtime, not link time */
-+	.exit.text :
-+	{
-+		EXIT_TEXT
-+	}
-+	.exit.data :
-+	{
-+		EXIT_DATA
-+	}
-+	PERCPU_SECTION(L1_CACHE_BYTES)
-+	__init_end = .;
-+
-+	.text : {
-+		_text = .;
-+		_stext = .;
-+		TEXT_TEXT
-+		SCHED_TEXT
-+		LOCK_TEXT
-+		KPROBES_TEXT
-+		ENTRY_TEXT
-+		IRQENTRY_TEXT
-+		*(.fixup)
-+		_etext = .;
-+	}
-+
-+	/* Start of data section */
-+	_sdata = .;
-+	RO_DATA_SECTION(PAGE_SIZE)
-+	RW_DATA_SECTION(0x40, PAGE_SIZE, THREAD_SIZE)
-+	.sdata : {
-+		_gp = . + 0x800;
-+		*(.sdata*)
-+	}
-+	.srodata : {
-+		*(.srodata*)
-+	}
-+	/* End of data section */
-+	_edata = .;
-+
-+	BSS_SECTION(0x20, 0, 0x20)
-+
-+	EXCEPTION_TABLE(0x10)
-+	NOTES
-+
-+	.rel.dyn : {
-+		*(.rel.dyn*)
-+	}
-+
-+	_end = .;
-+
-+	STABS_DEBUG
-+	DWARF_DEBUG
-+
-+	DISCARDS
-+}
-diff -Nur linux-4.6.2/arch/riscv/lib/ashldi3.c linux-4.6.2.riscv/arch/riscv/lib/ashldi3.c
---- linux-4.6.2/arch/riscv/lib/ashldi3.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/lib/ashldi3.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,28 @@
-+#include <linux/export.h>
-+
-+#include "libgcc.h"
-+
-+long long __ashldi3(long long u, word_type b)
-+{
-+	DWunion uu, w;
-+	word_type bm;
-+
-+	if (b == 0)
-+		return u;
-+
-+	uu.ll = u;
-+	bm = 32 - b;
-+
-+	if (bm <= 0) {
-+		w.s.low = 0;
-+		w.s.high = (unsigned int) uu.s.low << -bm;
-+	} else {
-+		const unsigned int carries = (unsigned int) uu.s.low >> bm;
-+
-+		w.s.low = (unsigned int) uu.s.low << b;
-+		w.s.high = ((unsigned int) uu.s.high << b) | carries;
-+	}
-+
-+	return w.ll;
-+}
-+EXPORT_SYMBOL(__ashldi3);
-diff -Nur linux-4.6.2/arch/riscv/lib/ashrdi3.c linux-4.6.2.riscv/arch/riscv/lib/ashrdi3.c
---- linux-4.6.2/arch/riscv/lib/ashrdi3.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/lib/ashrdi3.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,30 @@
-+#include <linux/export.h>
-+
-+#include "libgcc.h"
-+
-+long long __ashrdi3(long long u, word_type b)
-+{
-+	DWunion uu, w;
-+	word_type bm;
-+
-+	if (b == 0)
-+		return u;
-+
-+	uu.ll = u;
-+	bm = 32 - b;
-+
-+	if (bm <= 0) {
-+		/* w.s.high = 1..1 or 0..0 */
-+		w.s.high =
-+		    uu.s.high >> 31;
-+		w.s.low = uu.s.high >> -bm;
-+	} else {
-+		const unsigned int carries = (unsigned int) uu.s.high << bm;
-+
-+		w.s.high = uu.s.high >> b;
-+		w.s.low = ((unsigned int) uu.s.low >> b) | carries;
-+	}
-+
-+	return w.ll;
-+}
-+EXPORT_SYMBOL(__ashrdi3);
-diff -Nur linux-4.6.2/arch/riscv/lib/delay.c linux-4.6.2.riscv/arch/riscv/lib/delay.c
---- linux-4.6.2/arch/riscv/lib/delay.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/lib/delay.c	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,24 @@
-+#include <linux/delay.h>
-+#include <linux/param.h>
-+#include <linux/timex.h>
-+#include <linux/export.h>
-+
-+void __delay(unsigned long cycles)
-+{
-+	cycle_t t0 = get_cycles();
-+	while ((unsigned long)(get_cycles() - t0) < cycles)
-+		cpu_relax();
-+}
-+
-+void udelay(unsigned long usecs)
-+{
-+	__delay((unsigned long)(((u64)usecs * timebase) / 1000000UL));
-+
-+}
-+EXPORT_SYMBOL(udelay);
-+
-+void ndelay(unsigned long nsecs)
-+{
-+	__delay((unsigned long)(((u64)nsecs * timebase) / 1000000000UL));
-+}
-+EXPORT_SYMBOL(ndelay);
-diff -Nur linux-4.6.2/arch/riscv/lib/libgcc.h linux-4.6.2.riscv/arch/riscv/lib/libgcc.h
---- linux-4.6.2/arch/riscv/lib/libgcc.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/lib/libgcc.h	2017-03-04 02:48:34.170888098 +0100
-@@ -0,0 +1,32 @@
-+#ifndef __ASM_LIBGCC_H
-+#define __ASM_LIBGCC_H
-+
-+#include <asm/byteorder.h>
-+
-+typedef int word_type __attribute__ ((mode (__word__)));
-+
-+#ifdef __BIG_ENDIAN
-+struct DWstruct {
-+	int high, low;
-+};
-+#elif defined(__LITTLE_ENDIAN)
-+struct DWstruct {
-+	int low, high;
-+};
-+#else
-+#error I feel sick.
-+#endif
-+
-+typedef union {
-+	struct DWstruct s;
-+	long long ll;
-+} DWunion;
-+
-+extern long long __ashldi3(long long u, word_type b);
-+extern long long __ashrdi3(long long u, word_type b);
-+extern word_type __cmpdi2(long long a, long long b);
-+extern long long __lshrdi3(long long u, word_type b);
-+extern long long __muldi3(long long u, long long v);
-+extern word_type __ucmpdi2(unsigned long long a, unsigned long long b);
-+
-+#endif /* __ASM_LIBGCC_H */
-diff -Nur linux-4.6.2/arch/riscv/lib/lshrdi3.c linux-4.6.2.riscv/arch/riscv/lib/lshrdi3.c
---- linux-4.6.2/arch/riscv/lib/lshrdi3.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/lib/lshrdi3.c	2017-03-04 02:48:34.170888098 +0100
-@@ -0,0 +1,28 @@
-+#include <linux/export.h>
-+
-+#include "libgcc.h"
-+
-+long long __lshrdi3(long long u, word_type b)
-+{
-+	DWunion uu, w;
-+	word_type bm;
-+
-+	if (b == 0)
-+		return u;
-+
-+	uu.ll = u;
-+	bm = 32 - b;
-+
-+	if (bm <= 0) {
-+		w.s.high = 0;
-+		w.s.low = (unsigned int) uu.s.high >> -bm;
-+	} else {
-+		const unsigned int carries = (unsigned int) uu.s.high << bm;
-+
-+		w.s.high = (unsigned int) uu.s.high >> b;
-+		w.s.low = ((unsigned int) uu.s.low >> b) | carries;
-+	}
-+
-+	return w.ll;
-+}
-+EXPORT_SYMBOL(__lshrdi3);
-diff -Nur linux-4.6.2/arch/riscv/lib/Makefile linux-4.6.2.riscv/arch/riscv/lib/Makefile
---- linux-4.6.2/arch/riscv/lib/Makefile	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/lib/Makefile	2017-03-04 02:48:34.166888015 +0100
-@@ -0,0 +1,5 @@
-+lib-y	:= delay.o memcpy.o memset.o uaccess.o
-+
-+ifeq ($(CONFIG_64BIT),)
-+lib-y += ashldi3.o ashrdi3.o lshrdi3.o
-+endif
-diff -Nur linux-4.6.2/arch/riscv/lib/memcpy.S linux-4.6.2.riscv/arch/riscv/lib/memcpy.S
---- linux-4.6.2/arch/riscv/lib/memcpy.S	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/lib/memcpy.S	2017-03-04 02:48:34.170888098 +0100
-@@ -0,0 +1,85 @@
-+#include <linux/linkage.h>
-+#include <asm/asm.h>
-+
-+/* void *memcpy(void *, const void *, size_t) */
-+ENTRY(memcpy)
-+	move t6, a0  /* Preserve return value */
-+
-+	/* Defer to byte-oriented copy for small sizes */
-+	sltiu a3, a2, 128
-+	bnez a3, 4f
-+	/* Use word-oriented copy only if low-order bits match */
-+	andi a3, t6, SZREG-1
-+	andi a4, a1, SZREG-1
-+	bne a3, a4, 4f
-+
-+	beqz a3, 2f  /* Skip if already aligned */
-+	/* Round to nearest double word-aligned address
-+	   greater than or equal to start address */
-+	andi a3, a1, ~(SZREG-1)
-+	addi a3, a3, SZREG
-+	/* Handle initial misalignment */
-+	sub a4, a3, a1
-+1:
-+	lb a5, 0(a1)
-+	addi a1, a1, 1
-+	sb a5, 0(t6)
-+	addi t6, t6, 1
-+	bltu a1, a3, 1b
-+	sub a2, a2, a4  /* Update count */
-+
-+2:
-+	andi a4, a2, ~((16*SZREG)-1)
-+	beqz a4, 4f
-+	add a3, a1, a4
-+3:
-+	REG_L a4,       0(a1)
-+	REG_L a5,   SZREG(a1)
-+	REG_L a6, 2*SZREG(a1)
-+	REG_L a7, 3*SZREG(a1)
-+	REG_L t0, 4*SZREG(a1)
-+	REG_L t1, 5*SZREG(a1)
-+	REG_L t2, 6*SZREG(a1)
-+	REG_L t3, 7*SZREG(a1)
-+	REG_L t4, 8*SZREG(a1)
-+	REG_L t5, 9*SZREG(a1)
-+	REG_S a4,       0(t6)
-+	REG_S a5,   SZREG(t6)
-+	REG_S a6, 2*SZREG(t6)
-+	REG_S a7, 3*SZREG(t6)
-+	REG_S t0, 4*SZREG(t6)
-+	REG_S t1, 5*SZREG(t6)
-+	REG_S t2, 6*SZREG(t6)
-+	REG_S t3, 7*SZREG(t6)
-+	REG_S t4, 8*SZREG(t6)
-+	REG_S t5, 9*SZREG(t6)
-+	REG_L a4, 10*SZREG(a1)
-+	REG_L a5, 11*SZREG(a1)
-+	REG_L a6, 12*SZREG(a1)
-+	REG_L a7, 13*SZREG(a1)
-+	REG_L t0, 14*SZREG(a1)
-+	REG_L t1, 15*SZREG(a1)
-+	addi a1, a1, 16*SZREG
-+	REG_S a4, 10*SZREG(t6)
-+	REG_S a5, 11*SZREG(t6)
-+	REG_S a6, 12*SZREG(t6)
-+	REG_S a7, 13*SZREG(t6)
-+	REG_S t0, 14*SZREG(t6)
-+	REG_S t1, 15*SZREG(t6)
-+	addi t6, t6, 16*SZREG
-+	bltu a1, a3, 3b
-+	andi a2, a2, (16*SZREG)-1  /* Update count */
-+
-+4:
-+	/* Handle trailing misalignment */
-+	beqz a2, 6f
-+	add a3, a1, a2
-+5:
-+	lb a4, 0(a1)
-+	addi a1, a1, 1
-+	sb a4, 0(t6)
-+	addi t6, t6, 1
-+	bltu a1, a3, 5b
-+6:
-+	ret
-+END(memcpy)
-diff -Nur linux-4.6.2/arch/riscv/lib/memset.S linux-4.6.2.riscv/arch/riscv/lib/memset.S
---- linux-4.6.2/arch/riscv/lib/memset.S	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/lib/memset.S	2017-03-04 02:48:34.170888098 +0100
-@@ -0,0 +1,104 @@
-+#include <linux/linkage.h>
-+#include <asm/asm.h>
-+
-+/* void *memset(void *, int, size_t) */
-+ENTRY(memset)
-+	move t0, a0  /* Preserve return value */
-+
-+	/* Defer to byte-oriented fill for small sizes */
-+	sltiu a3, a2, 16
-+	bnez a3, 4f
-+
-+	/* Round to nearest XLEN-aligned address
-+	   greater than or equal to start address */
-+	addi a3, t0, SZREG-1
-+	andi a3, a3, ~(SZREG-1)
-+	beq a3, t0, 2f  /* Skip if already aligned */
-+	/* Handle initial misalignment */
-+	sub a4, a3, t0
-+1:
-+	sb a1, 0(t0)
-+	addi t0, t0, 1
-+	bltu t0, a3, 1b
-+	sub a2, a2, a4  /* Update count */
-+
-+2: /* Duff's device with 32 XLEN stores per iteration */
-+	/* Broadcast value into all bytes */
-+	andi a1, a1, 0xff
-+	slli a3, a1, 8
-+	or a1, a3, a1
-+	slli a3, a1, 16
-+	or a1, a3, a1
-+#ifdef CONFIG_64BIT
-+	slli a3, a1, 32
-+	or a1, a3, a1
-+#endif
-+
-+	/* Calculate end address */
-+	andi a4, a2, ~(SZREG-1)
-+	add a3, t0, a4
-+
-+	andi a4, a4, 31*SZREG  /* Calculate remainder */
-+	beqz a4, 3f            /* Shortcut if no remainder */
-+	neg a4, a4
-+	addi a4, a4, 32*SZREG  /* Calculate initial offset */
-+
-+	/* Adjust start address with offset */
-+	sub t0, t0, a4
-+
-+	/* Jump into loop body */
-+	/* Assumes 32-bit instruction lengths */
-+	la a5, 3f
-+#ifdef CONFIG_64BIT
-+	srli a4, a4, 1
-+#endif
-+	add a5, a5, a4
-+	jr a5
-+3:
-+	REG_S a1,        0(t0)
-+	REG_S a1,    SZREG(t0)
-+	REG_S a1,  2*SZREG(t0)
-+	REG_S a1,  3*SZREG(t0)
-+	REG_S a1,  4*SZREG(t0)
-+	REG_S a1,  5*SZREG(t0)
-+	REG_S a1,  6*SZREG(t0)
-+	REG_S a1,  7*SZREG(t0)
-+	REG_S a1,  8*SZREG(t0)
-+	REG_S a1,  9*SZREG(t0)
-+	REG_S a1, 10*SZREG(t0)
-+	REG_S a1, 11*SZREG(t0)
-+	REG_S a1, 12*SZREG(t0)
-+	REG_S a1, 13*SZREG(t0)
-+	REG_S a1, 14*SZREG(t0)
-+	REG_S a1, 15*SZREG(t0)
-+	REG_S a1, 16*SZREG(t0)
-+	REG_S a1, 17*SZREG(t0)
-+	REG_S a1, 18*SZREG(t0)
-+	REG_S a1, 19*SZREG(t0)
-+	REG_S a1, 20*SZREG(t0)
-+	REG_S a1, 21*SZREG(t0)
-+	REG_S a1, 22*SZREG(t0)
-+	REG_S a1, 23*SZREG(t0)
-+	REG_S a1, 24*SZREG(t0)
-+	REG_S a1, 25*SZREG(t0)
-+	REG_S a1, 26*SZREG(t0)
-+	REG_S a1, 27*SZREG(t0)
-+	REG_S a1, 28*SZREG(t0)
-+	REG_S a1, 29*SZREG(t0)
-+	REG_S a1, 30*SZREG(t0)
-+	REG_S a1, 31*SZREG(t0)
-+	addi t0, t0, 32*SZREG
-+	bltu t0, a3, 3b
-+	andi a2, a2, SZREG-1  /* Update count */
-+
-+4:
-+	/* Handle trailing misalignment */
-+	beqz a2, 6f
-+	add a3, t0, a2
-+5:
-+	sb a1, 0(t0)
-+	addi t0, t0, 1
-+	bltu t0, a3, 5b
-+6:
-+	ret
-+END(memset)
-diff -Nur linux-4.6.2/arch/riscv/lib/uaccess.S linux-4.6.2.riscv/arch/riscv/lib/uaccess.S
---- linux-4.6.2/arch/riscv/lib/uaccess.S	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/lib/uaccess.S	2017-03-04 02:48:34.170888098 +0100
-@@ -0,0 +1,125 @@
-+#include <linux/linkage.h>
-+#include <asm/asm.h>
-+#include <asm/csr.h>
-+
-+	.altmacro
-+	.macro fixup op reg addr lbl
-+	LOCAL _epc
-+_epc:
-+	\op \reg, \addr
-+	.section __ex_table,"a"
-+	.balign SZPTR
-+	PTR _epc, \lbl
-+	.previous
-+	.endm
-+
-+ENTRY(__copy_user)
-+
-+#ifdef CONFIG_RV_PUM
-+	/* Enable access to user memory */
-+	li t6, SR_PUM
-+	csrc sstatus, t6
-+#endif
-+
-+	add a3, a1, a2
-+	/* Use word-oriented copy only if low-order bits match */
-+	andi t0, a0, SZREG-1
-+	andi t1, a1, SZREG-1
-+	bne t0, t1, 2f
-+
-+	addi t0, a1, SZREG-1
-+	andi t1, a3, ~(SZREG-1)
-+	andi t0, t0, ~(SZREG-1)
-+	/* a3: terminal address of source region
-+	 * t0: lowest XLEN-aligned address in source
-+	 * t1: highest XLEN-aligned address in source
-+	 */
-+	bgeu t0, t1, 2f
-+	bltu a1, t0, 4f
-+1:
-+	fixup REG_L, t2, (a1), 10f
-+	fixup REG_S, t2, (a0), 10f
-+	addi a1, a1, SZREG
-+	addi a0, a0, SZREG
-+	bltu a1, t1, 1b
-+2:
-+	bltu a1, a3, 5f
-+
-+3:
-+#ifdef CONFIG_RV_PUM
-+	/* Disable access to user memory */
-+	csrs sstatus, t6
-+#endif
-+	li a0, 0
-+	ret
-+4: /* Edge case: unalignment */
-+	fixup lbu, t2, (a1), 10f
-+	fixup sb, t2, (a0), 10f
-+	addi a1, a1, 1
-+	addi a0, a0, 1
-+	bltu a1, t0, 4b
-+	j 1b
-+5: /* Edge case: remainder */
-+	fixup lbu, t2, (a1), 10f
-+	fixup sb, t2, (a0), 10f
-+	addi a1, a1, 1
-+	addi a0, a0, 1
-+	bltu a1, a3, 5b
-+	j 3b
-+ENDPROC(__copy_user)
-+
-+
-+ENTRY(__clear_user)
-+
-+#ifdef CONFIG_RV_PUM
-+	/* Enable access to user memory */
-+	li t6, SR_PUM
-+	csrc sstatus, t6
-+#endif
-+
-+	add a3, a0, a1
-+	addi t0, a0, SZREG-1
-+	andi t1, a3, ~(SZREG-1)
-+	andi t0, t0, ~(SZREG-1)
-+	/* a3: terminal address of target region
-+	 * t0: lowest doubleword-aligned address in target region
-+	 * t1: highest doubleword-aligned address in target region
-+	 */
-+	bgeu t0, t1, 2f
-+	bltu a0, t0, 4f
-+1:
-+	fixup REG_S, zero, (a0), 10f
-+	addi a0, a0, SZREG
-+	bltu a0, t1, 1b
-+2:
-+	bltu a0, a3, 5f
-+
-+3:
-+#ifdef CONFIG_RV_PUM
-+	/* Disable access to user memory */
-+	csrs sstatus, t6
-+#endif
-+	li a0, 0
-+	ret
-+4: /* Edge case: unalignment */
-+	fixup sb, zero, (a0), 10f
-+	addi a0, a0, 1
-+	bltu a0, t0, 4b
-+	j 1b
-+5: /* Edge case: remainder */
-+	fixup sb, zero, (a0), 10f
-+	addi a0, a0, 1
-+	bltu a0, a3, 5b
-+	j 3b
-+ENDPROC(__clear_user)
-+
-+	.section .fixup,"ax"
-+	.balign 4
-+10:
-+#ifdef CONFIG_RV_PUM
-+	/* Disable access to user memory */
-+	csrs sstatus, t6
-+#endif
-+	sub a0, a3, a0
-+	ret
-+	.previous
-diff -Nur linux-4.6.2/arch/riscv/Makefile linux-4.6.2.riscv/arch/riscv/Makefile
---- linux-4.6.2/arch/riscv/Makefile	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/Makefile	2017-03-04 02:48:34.162887952 +0100
-@@ -0,0 +1,70 @@
-+# BK Id: %F% %I% %G% %U% %#%
-+#
-+# This file is included by the global makefile so that you can add your own
-+# architecture-specific flags and dependencies. Remember to do have actions
-+# for "archclean" and "archdep" for cleaning up and making dependencies for
-+# this architecture
-+#
-+# This file is subject to the terms and conditions of the GNU General Public
-+# License.  See the file "COPYING" in the main directory of this archive
-+# for more details.
-+#
-+# Copyright (C) 1994 by Linus Torvalds
-+# Modifications for the RISC-V architecture:
-+# Quan Nguyen <quannguyen@eecs.berkeley.edu>
-+# Albert Ou <a_ou@eecs.berkeley.edu>
-+#
-+# Based on:
-+# arch/score/Makefile
-+
-+LDFLAGS         :=
-+OBJCOPYFLAGS    := -O binary
-+LDFLAGS_vmlinux :=
-+
-+ifeq ($(ARCH),riscv)
-+	KBUILD_DEFCONFIG = riscv64_spike
-+else
-+	KBUILD_DEFCONFIG = $(ARCH)_spike
-+endif
-+
-+export BITS
-+ifeq ($(CONFIG_64BIT),y)
-+	BITS := 64
-+	UTS_MACHINE := riscv64
-+
-+	KBUILD_CFLAGS += -mabi=lp64
-+	KBUILD_AFLAGS += -mabi=lp64
-+	KBUILD_MARCH = rv64im
-+	LDFLAGS += -melf64lriscv
-+else
-+	BITS := 32
-+	UTS_MACHINE := riscv32
-+
-+	KBUILD_CFLAGS += -mabi=ilp32
-+	KBUILD_AFLAGS += -mabi=ilp32
-+	KBUILD_MARCH = rv32im
-+	LDFLAGS += -melf32lriscv
-+endif
-+
-+ifeq ($(CONFIG_RV_ATOMIC),y)
-+	KBUILD_RV_ATOMIC = a
-+endif
-+
-+KBUILD_CFLAGS += -Wall
-+
-+ifeq ($(CONFIG_RVC),y)
-+	KBUILD_RVC = c
-+endif
-+
-+KBUILD_AFLAGS += -march=$(KBUILD_MARCH)$(KBUILD_RV_ATOMIC)fd$(KBUILD_RVC)
-+
-+KBUILD_CFLAGS += -march=$(KBUILD_MARCH)$(KBUILD_RV_ATOMIC)$(KBUILD_RVC)
-+KBUILD_CFLAGS += -mno-save-restore
-+
-+head-y := arch/riscv/kernel/head.o
-+
-+core-y += arch/riscv/kernel/ arch/riscv/mm/
-+
-+libs-y += arch/riscv/lib/
-+
-+all: vmlinux
-diff -Nur linux-4.6.2/arch/riscv/mm/extable.c linux-4.6.2.riscv/arch/riscv/mm/extable.c
---- linux-4.6.2/arch/riscv/mm/extable.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/mm/extable.c	2017-03-04 02:48:34.170888098 +0100
-@@ -0,0 +1,14 @@
-+#include <linux/module.h>
-+#include <linux/uaccess.h>
-+
-+int fixup_exception(struct pt_regs *regs)
-+{
-+	const struct exception_table_entry *fixup;
-+
-+	fixup = search_exception_tables(regs->sepc);
-+	if (fixup) {
-+		regs->sepc = fixup->fixup;
-+		return 1;
-+	}
-+	return 0;
-+}
-diff -Nur linux-4.6.2/arch/riscv/mm/fault.c linux-4.6.2.riscv/arch/riscv/mm/fault.c
---- linux-4.6.2/arch/riscv/mm/fault.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/mm/fault.c	2017-03-04 02:48:34.170888098 +0100
-@@ -0,0 +1,250 @@
-+#include <linux/mm.h>
-+#include <linux/kernel.h>
-+#include <linux/interrupt.h>
-+#include <linux/perf_event.h>
-+#include <linux/signal.h>
-+#include <linux/uaccess.h>
-+
-+#include <asm/pgalloc.h>
-+#include <asm/ptrace.h>
-+#include <asm/uaccess.h>
-+
-+/*
-+ * This routine handles page faults.  It determines the address and the
-+ * problem, and then passes it off to one of the appropriate routines.
-+ */
-+asmlinkage void do_page_fault(struct pt_regs *regs)
-+{
-+	struct task_struct *tsk;
-+	struct vm_area_struct *vma;
-+	struct mm_struct *mm;
-+	unsigned long addr, cause;
-+	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
-+	int fault, code = SEGV_MAPERR;
-+
-+	cause = regs->scause;
-+	addr = regs->sbadaddr;
-+
-+	tsk = current;
-+	mm = tsk->mm;
-+
-+	/*
-+	 * Fault-in kernel-space virtual memory on-demand.
-+	 * The 'reference' page table is init_mm.pgd.
-+	 *
-+	 * NOTE! We MUST NOT take any locks for this case. We may
-+	 * be in an interrupt or a critical region, and should
-+	 * only copy the information from the master page table,
-+	 * nothing more.
-+	 */
-+	if (unlikely((addr >= VMALLOC_START) && (addr <= VMALLOC_END)))
-+		goto vmalloc_fault;
-+
-+	/* Enable interrupts if they were enabled in the parent context. */
-+	if (likely(regs->sstatus & SR_PIE))
-+		local_irq_enable();
-+
-+	/*
-+	 * If we're in an interrupt, have no user context, or are running
-+	 * in an atomic region, then we must not take the fault.
-+	 */
-+	if (unlikely(faulthandler_disabled() || !mm))
-+		goto no_context;
-+
-+	if (user_mode(regs))
-+		flags |= FAULT_FLAG_USER;
-+
-+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);
-+
-+retry:
-+	down_read(&mm->mmap_sem);
-+	vma = find_vma(mm, addr);
-+	if (unlikely(!vma))
-+		goto bad_area;
-+	if (likely(vma->vm_start <= addr))
-+		goto good_area;
-+	if (unlikely(!(vma->vm_flags & VM_GROWSDOWN)))
-+		goto bad_area;
-+	if (unlikely(expand_stack(vma, addr)))
-+		goto bad_area;
-+
-+	/*
-+	 * Ok, we have a good vm_area for this memory access, so
-+	 * we can handle it.
-+	 */
-+good_area:
-+	code = SEGV_ACCERR;
-+
-+	switch (cause) {
-+	case EXC_INST_ACCESS:
-+		if (!(vma->vm_flags & VM_EXEC))
-+			goto bad_area;
-+		break;
-+	case EXC_LOAD_ACCESS:
-+		if (!(vma->vm_flags & VM_READ))
-+			goto bad_area;
-+		break;
-+	case EXC_STORE_ACCESS:
-+		if (!(vma->vm_flags & VM_WRITE))
-+			goto bad_area;
-+		flags |= FAULT_FLAG_WRITE;
-+		break;
-+	default:
-+		panic("%s: unhandled cause %lu", __func__, cause);
-+	}
-+
-+	/*
-+	 * If for any reason at all we could not handle the fault,
-+	 * make sure we exit gracefully rather than endlessly redo
-+	 * the fault.
-+	 */
-+	fault = handle_mm_fault(mm, vma, addr, flags);
-+
-+	/*
-+	 * If we need to retry but a fatal signal is pending, handle the
-+	 * signal first. We do not need to release the mmap_sem because it
-+	 * would already be released in __lock_page_or_retry in mm/filemap.c.
-+	 */
-+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(tsk))
-+		return;
-+
-+	if (unlikely(fault & VM_FAULT_ERROR)) {
-+		if (fault & VM_FAULT_OOM)
-+			goto out_of_memory;
-+		else if (fault & VM_FAULT_SIGBUS)
-+			goto do_sigbus;
-+		BUG();
-+	}
-+
-+	/*
-+	 * Major/minor page fault accounting is only done on the
-+	 * initial attempt. If we go through a retry, it is extremely
-+	 * likely that the page will be found in page cache at that point.
-+	 */
-+	if (flags & FAULT_FLAG_ALLOW_RETRY) {
-+		if (fault & VM_FAULT_MAJOR) {
-+			tsk->maj_flt++;
-+			perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, addr);
-+		} else {
-+			tsk->min_flt++;
-+			perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, addr);
-+		}
-+		if (fault & VM_FAULT_RETRY) {
-+			/*
-+			 * Clear FAULT_FLAG_ALLOW_RETRY to avoid any risk
-+			 * of starvation.
-+			 */
-+			flags &= ~(FAULT_FLAG_ALLOW_RETRY);
-+			flags |= FAULT_FLAG_TRIED;
-+
-+			/*
-+			 * No need to up_read(&mm->mmap_sem) as we would
-+			 * have already released it in __lock_page_or_retry
-+			 * in mm/filemap.c.
-+			 */
-+			goto retry;
-+		}
-+	}
-+
-+	up_read(&mm->mmap_sem);
-+	return;
-+
-+	/*
-+	 * Something tried to access memory that isn't in our memory map.
-+	 * Fix it, but check if it's kernel or user first.
-+	 */
-+bad_area:
-+	up_read(&mm->mmap_sem);
-+	/* User mode accesses just cause a SIGSEGV */
-+	if (user_mode(regs)) {
-+		do_trap(regs, SIGSEGV, code, addr, tsk);
-+		return;
-+	}
-+
-+no_context:
-+	/* Are we prepared to handle this kernel fault? */
-+	if (fixup_exception(regs)) {
-+		return;
-+	}
-+
-+	/*
-+	 * Oops. The kernel tried to access some bad page. We'll have to
-+	 * terminate things with extreme prejudice.
-+	 */
-+	bust_spinlocks(1);
-+	pr_alert("Unable to handle kernel %s at virtual address " REG_FMT "\n",
-+		(addr < PAGE_SIZE) ? "NULL pointer dereference" :
-+		"paging request", addr);
-+	die(regs, "Oops");
-+	do_exit(SIGKILL);
-+
-+	/*
-+	 * We ran out of memory, call the OOM killer, and return the userspace
-+	 * (which will retry the fault, or kill us if we got oom-killed).
-+	 */
-+out_of_memory:
-+	up_read(&mm->mmap_sem);
-+	if (!user_mode(regs))
-+		goto no_context;
-+	pagefault_out_of_memory();
-+	return;
-+
-+do_sigbus:
-+	up_read(&mm->mmap_sem);
-+	/* Kernel mode? Handle exceptions or die */
-+	if (!user_mode(regs))
-+		goto no_context;
-+	do_trap(regs, SIGBUS, BUS_ADRERR, addr, tsk);
-+	return;
-+
-+vmalloc_fault:
-+	{
-+		pgd_t *pgd, *pgd_k;
-+		pud_t *pud, *pud_k;
-+		pmd_t *pmd, *pmd_k;
-+		pte_t *pte_k;
-+		int index;
-+
-+	        if (user_mode(regs))
-+			goto bad_area;
-+
-+		/*
-+		 * Synchronize this task's top level page-table
-+		 * with the 'reference' page table.
-+		 *
-+		 * Do _not_ use "tsk->active_mm->pgd" here.
-+		 * We might be inside an interrupt in the middle
-+		 * of a task switch.
-+		 */
-+		index = pgd_index(addr);
-+		pgd = (pgd_t *)pfn_to_virt(csr_read(sptbr)) + index;
-+		pgd_k = init_mm.pgd + index;
-+
-+		if (!pgd_present(*pgd_k))
-+			goto no_context;
-+		set_pgd(pgd, *pgd_k);
-+
-+		pud = pud_offset(pgd, addr);
-+		pud_k = pud_offset(pgd_k, addr);
-+		if (!pud_present(*pud_k))
-+			goto no_context;
-+
-+		/* Since the vmalloc area is global, it is unnecessary
-+		   to copy individual PTEs */
-+		pmd = pmd_offset(pud, addr);
-+		pmd_k = pmd_offset(pud_k, addr);
-+		if (!pmd_present(*pmd_k))
-+			goto no_context;
-+		set_pmd(pmd, *pmd_k);
-+
-+		/* Make sure the actual PTE exists as well to
-+		 * catch kernel vmalloc-area accesses to non-mapped
-+		 * addresses. If we don't do this, this will just
-+		 * silently loop forever.
-+		 */
-+		pte_k = pte_offset_kernel(pmd_k, addr);
-+		if (!pte_present(*pte_k))
-+			goto no_context;
-+		return;
-+	}
-+}
-diff -Nur linux-4.6.2/arch/riscv/mm/init.c linux-4.6.2.riscv/arch/riscv/mm/init.c
---- linux-4.6.2/arch/riscv/mm/init.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/mm/init.c	2017-03-04 02:48:34.170888098 +0100
-@@ -0,0 +1,84 @@
-+#include <linux/init.h>
-+#include <linux/mm.h>
-+#include <linux/bootmem.h>
-+#include <linux/initrd.h>
-+#include <linux/memblock.h>
-+#include <linux/swap.h>
-+
-+#include <asm/tlbflush.h>
-+#include <asm/sections.h>
-+#include <asm/pgtable.h>
-+#include <asm/io.h>
-+
-+#ifdef CONFIG_NUMA
-+static void __init zone_sizes_init(void)
-+{
-+	unsigned long zones_size[MAX_NR_ZONES];
-+	int nid;
-+
-+	memset(zones_size, 0, sizeof(zones_size));
-+
-+	for_each_online_node(nid) {
-+		pg_data_t *pgdat;
-+		unsigned long start_pfn, end_pfn;
-+
-+		pgdat = NODE_DATA(nid);
-+		start_pfn = pgdat->bdata->node_min_pfn;
-+		end_pfn = pgdat->bdata->node_low_pfn;
-+		memblock_add_node(start_pfn,
-+			PFN_PHYS(end_pfn - start_pfn), nid);
-+	}
-+
-+	zones_size[ZONE_NORMAL] = pfn_base + max_mapnr;
-+	free_area_init_nodes(zones_size);
-+}
-+#else
-+static void __init zone_sizes_init(void)
-+{
-+	unsigned long zones_size[MAX_NR_ZONES];
-+
-+	memset(zones_size, 0, sizeof(zones_size));
-+	memblock_add_node(PFN_PHYS(pfn_base), PFN_PHYS(max_mapnr), 0);
-+	zones_size[ZONE_NORMAL] = pfn_base + max_mapnr;
-+	free_area_init_nodes(zones_size);
-+}
-+#endif /* CONFIG_NUMA */
-+
-+void setup_zero_page(void)
-+{
-+	memset((void *)empty_zero_page, 0, PAGE_SIZE);
-+}
-+
-+void __init paging_init(void)
-+{
-+	init_mm.pgd = (pgd_t *)pfn_to_virt(csr_read(sptbr));
-+
-+	setup_zero_page();
-+	local_flush_tlb_all();
-+	zone_sizes_init();
-+}
-+
-+void __init mem_init(void)
-+{
-+#ifdef CONFIG_FLATMEM
-+	BUG_ON(!mem_map);
-+#endif /* CONFIG_FLATMEM */
-+
-+	high_memory = (void *)(__va(PFN_PHYS(max_low_pfn)));
-+	free_all_bootmem();
-+
-+	mem_init_print_info(NULL);
-+}
-+
-+void free_initmem(void)
-+{
-+	free_initmem_default(0);
-+}
-+
-+#ifdef CONFIG_BLK_DEV_INITRD
-+void free_initrd_mem(unsigned long start, unsigned long end)
-+{
-+//	free_reserved_area(start, end, 0, "initrd");
-+}
-+#endif /* CONFIG_BLK_DEV_INITRD */
-+
-diff -Nur linux-4.6.2/arch/riscv/mm/ioremap.c linux-4.6.2.riscv/arch/riscv/mm/ioremap.c
---- linux-4.6.2/arch/riscv/mm/ioremap.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/mm/ioremap.c	2017-03-04 02:48:34.170888098 +0100
-@@ -0,0 +1,81 @@
-+#include <linux/export.h>
-+#include <linux/mm.h>
-+#include <linux/vmalloc.h>
-+#include <linux/io.h>
-+
-+#include <asm/pgtable.h>
-+
-+/*
-+ * Remap an arbitrary physical address space into the kernel virtual
-+ * address space. Needed when the kernel wants to access high addresses
-+ * directly.
-+ *
-+ * NOTE! We need to allow non-page-aligned mappings too: we will obviously
-+ * have to convert them into an offset in a page-aligned mapping, but the
-+ * caller shouldn't need to know that small detail.
-+ */
-+static void __iomem *__ioremap_caller(phys_addr_t addr, size_t size,
-+	pgprot_t prot, void *caller)
-+{
-+	phys_addr_t last_addr;
-+	unsigned long offset, vaddr;
-+	struct vm_struct *area;
-+
-+	/* Disallow wrap-around or zero size */
-+	last_addr = addr + size - 1;
-+	if (!size || last_addr < addr) {
-+		return NULL;
-+	}
-+
-+	/* Page-align mappings */
-+	offset = addr & (~PAGE_MASK);
-+	addr &= PAGE_MASK;
-+	size = PAGE_ALIGN(size + offset);
-+
-+	area = get_vm_area_caller(size, VM_IOREMAP, caller);
-+	if (!area) {
-+		return NULL;
-+	}
-+	vaddr = (unsigned long)area->addr;
-+
-+	if (ioremap_page_range(vaddr, vaddr + size, addr, prot)) {
-+		free_vm_area(area);
-+		return NULL;
-+	}
-+
-+	return (void __iomem *)(vaddr + offset);
-+}
-+
-+/*
-+ * ioremap     -   map bus memory into CPU space
-+ * @offset:    bus address of the memory
-+ * @size:      size of the resource to map
-+ *
-+ * ioremap performs a platform specific sequence of operations to
-+ * make bus memory CPU accessible via the readb/readw/readl/writeb/
-+ * writew/writel functions and the other mmio helpers. The returned
-+ * address is not guaranteed to be usable directly as a virtual
-+ * address.
-+ *
-+ * Must be freed with iounmap.
-+ */
-+void __iomem *ioremap(phys_addr_t offset, unsigned long size)
-+{
-+	return __ioremap_caller(offset, size, PAGE_KERNEL,
-+		__builtin_return_address(0));
-+}
-+EXPORT_SYMBOL(ioremap);
-+
-+
-+/**
-+ * iounmap - Free a IO remapping
-+ * @addr: virtual address from ioremap_*
-+ *
-+ * Caller must ensure there is only one unmapping for the same pointer.
-+ */
-+void iounmap(void __iomem *addr)
-+{
-+	vunmap((void *)((unsigned long)addr & PAGE_MASK));
-+}
-+EXPORT_SYMBOL(iounmap);
-+
-diff -Nur linux-4.6.2/arch/riscv/mm/Makefile linux-4.6.2.riscv/arch/riscv/mm/Makefile
---- linux-4.6.2/arch/riscv/mm/Makefile	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/arch/riscv/mm/Makefile	2017-03-04 02:48:34.170888098 +0100
-@@ -0,0 +1 @@
-+obj-y := init.o fault.o extable.o ioremap.o
-diff -Nur linux-4.6.2/.gitignore linux-4.6.2.riscv/.gitignore
---- linux-4.6.2/.gitignore	2016-06-08 03:23:53.000000000 +0200
-+++ linux-4.6.2.riscv/.gitignore	2017-03-04 02:48:34.162887952 +0100
-@@ -1,114 +1,11 @@
--#
--# NOTE! Don't add files that are generated in specific
--# subdirectories here. Add them in the ".gitignore" file
--# in that subdirectory instead.
--#
--# NOTE! Please use 'git ls-files -i --exclude-standard'
--# command after changing this file, to see if there are
--# any tracked files which get ignored after the change.
--#
--# Normal rules
--#
--.*
--*.o
--*.o.*
--*.a
--*.s
--*.ko
--*.so
--*.so.dbg
--*.mod.c
--*.i
--*.lst
--*.symtypes
--*.order
--*.elf
--*.bin
--*.tar
--*.gz
--*.bz2
--*.lzma
--*.xz
--*.lz4
--*.lzo
--*.patch
--*.gcno
--modules.builtin
--Module.symvers
--*.dwo
--*.su
-+# Ignore everything...
-+*
- 
--#
--# Top-level generic files
--#
--/tags
--/TAGS
--/linux
--/vmlinux
--/vmlinux.32
--/vmlinux-gdb.py
--/vmlinuz
--/System.map
--/Module.markers
--
--#
--# Debian directory (make deb-pkg)
--#
--/debian/
--
--#
--# tar directory (make tar*-pkg)
--#
--/tar-install/
--
--#
--# git files that we don't want to ignore even it they are dot-files
--#
-+# Then include just this.
-+!arch/
- !.gitignore
--!.mailmap
--
--#
--# Generated include files
--#
--include/config
--include/generated
--arch/*/include/generated
--
--# stgit generated dirs
--patches-*
--
--# quilt's files
--patches
--series
--
--# cscope files
--cscope.*
--ncscope.*
--
--# gnu global files
--GPATH
--GRTAGS
--GSYMS
--GTAGS
--
--# id-utils files
--ID
--
--*.orig
--*~
--\#*#
--
--#
--# Leavings from module signing
--#
--extra_certificates
--signing_key.pem
--signing_key.priv
--signing_key.x509
--x509.genkey
-+!README.md
- 
--# Kconfig presets
--all.config
-+# The arch/.gitignore and arch/riscv/.gitignore have patterns to un-ignore the
-+# appropriate files.
- 
--# Kdevelop4
--*.kdev4
-diff -Nur linux-4.6.2/README.md linux-4.6.2.riscv/README.md
---- linux-4.6.2/README.md	1970-01-01 01:00:00.000000000 +0100
-+++ linux-4.6.2.riscv/README.md	2017-03-04 02:48:34.162887952 +0100
-@@ -0,0 +1,72 @@
-+# Linux/RISC-V
-+
-+This is a port of Linux kernel for the [RISC-V](http://riscv.org/)
-+instruction set architecture.
-+Development is currently based on the
-+[4.6 longterm branch](https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/log/?h=linux-4.6.y).
-+
-+
-+## Obtaining kernel sources
-+
-+### Master
-+
-+Overlay the `riscv` architecture-specific subtree onto an upstream release:
-+
-+        $ curl -L https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.6.2.tar.xz | tar -xJ
-+        $ cd linux-4.6.2
-+        $ git init
-+        $ git remote add -t master origin https://github.com/riscv/riscv-linux.git
-+        $ git fetch
-+        $ git checkout -f -t origin/master
-+
-+Note that the `-t <branch>` option minimizes the history fetched.
-+To add another branch:
-+
-+        $ git remote set-branches --add origin <branch>
-+        $ git fetch
-+
-+### Full kernel source trees
-+
-+For convenience, full kernel source trees are maintained on separate
-+branches tracking
-+[linux-stable](https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git):
-+
-+* `linux-4.6.y-riscv`
-+* `linux-3.14.y-riscv` (historical)
-+
-+## Building the kernel image
-+
-+1. Create kernel configuration based on architecture defaults:
-+
-+        $ make ARCH=riscv defconfig
-+
-+1. Optionally edit the configuration via an ncurses interface:
-+
-+        $ make ARCH=riscv menuconfig
-+
-+1. Build the uncompressed kernel image:
-+
-+        $ make -j4 ARCH=riscv vmlinux
-+
-+1. Boot the kernel in the functional simulator, optionally specifying a
-+   raw disk image for the root filesystem:
-+
-+        $ spike +disk=path/to/root.img bbl vmlinux
-+
-+   `bbl` (the Berkeley Boot Loader) is available from the
-+   [riscv-pk](https://github.com/riscv/riscv-pk) repository.
-+
-+## Exporting kernel headers
-+
-+The `riscv-gnu-toolchain` repository includes a copy of the kernel header files.
-+If the userspace API has changed, export the updated headers to the
-+`riscv-gnu-toolchain` source directory:
-+
-+    $ make ARCH=riscv headers_check
-+    $ make ARCH=riscv INSTALL_HDR_PATH=path/to/riscv-gnu-toolchain/linux-headers headers_install
-+
-+Rebuild `riscv64-unknown-linux-gnu-gcc` with the `linux` target:
-+
-+    $ cd path/to/riscv-gnu-toolchain
-+    $ make linux
-+
diff --git a/target/linux/patches/4.9.40/startup.patch b/target/linux/patches/4.9.40/startup.patch
deleted file mode 100644
index e54ac19a6..000000000
--- a/target/linux/patches/4.9.40/startup.patch
+++ /dev/null
@@ -1,34 +0,0 @@
-diff -Nur linux-4.4.6.orig/init/initramfs.c linux-4.4.6/init/initramfs.c
---- linux-4.4.6.orig/init/initramfs.c	2016-03-16 16:43:17.000000000 +0100
-+++ linux-4.4.6/init/initramfs.c	2016-03-27 14:15:43.931044532 +0200
-@@ -653,6 +653,9 @@
- 		 */
- 		load_default_modules();
- 	}
-+#ifdef CONFIG_DEVTMPFS_MOUNT
-+	devtmpfs_mount("dev");
-+#endif
- 	return 0;
- }
- rootfs_initcall(populate_rootfs);
-diff -Nur linux-4.4.6.orig/init/main.c linux-4.4.6/init/main.c
---- linux-4.4.6.orig/init/main.c	2016-03-16 16:43:17.000000000 +0100
-+++ linux-4.4.6/init/main.c	2016-03-27 14:15:43.935044783 +0200
-@@ -1011,6 +1011,8 @@
- 	if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
- 		pr_err("Warning: unable to open an initial console.\n");
- 
-+	printk(KERN_WARNING "Starting Linux (built with OpenADK).\n");
-+
- 	(void) sys_dup(0);
- 	(void) sys_dup(0);
- 	/*
-@@ -1019,7 +1021,7 @@
- 	 */
- 
- 	if (!ramdisk_execute_command)
--		ramdisk_execute_command = "/init";
-+		ramdisk_execute_command = "/sbin/init";
- 
- 	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
- 		ramdisk_execute_command = NULL;
diff --git a/target/linux/patches/4.9.40/crisv32_ethernet_driver.patch b/target/linux/patches/4.9.50/crisv32_ethernet_driver.patch
index 0cef202fc..0cef202fc 100644
--- a/target/linux/patches/4.9.40/crisv32_ethernet_driver.patch
+++ b/target/linux/patches/4.9.50/crisv32_ethernet_driver.patch
diff --git a/target/linux/patches/4.9.40/h8300.patch b/target/linux/patches/4.9.50/h8300.patch
index a58b3f137..a58b3f137 100644
--- a/target/linux/patches/4.9.40/h8300.patch
+++ b/target/linux/patches/4.9.50/h8300.patch
diff --git a/target/linux/patches/4.9.40/initramfs-nosizelimit.patch b/target/linux/patches/4.9.50/initramfs-nosizelimit.patch
index 40d2f6bd8..40d2f6bd8 100644
--- a/target/linux/patches/4.9.40/initramfs-nosizelimit.patch
+++ b/target/linux/patches/4.9.50/initramfs-nosizelimit.patch
diff --git a/target/linux/patches/4.9.40/ld-or1k.patch b/target/linux/patches/4.9.50/ld-or1k.patch
index 264f9166f..264f9166f 100644
--- a/target/linux/patches/4.9.40/ld-or1k.patch
+++ b/target/linux/patches/4.9.50/ld-or1k.patch
diff --git a/target/linux/patches/4.9.40/macsonic.patch b/target/linux/patches/4.9.50/macsonic.patch
index 75a6fcad2..75a6fcad2 100644
--- a/target/linux/patches/4.9.40/macsonic.patch
+++ b/target/linux/patches/4.9.50/macsonic.patch
diff --git a/target/linux/patches/4.9.40/microblaze-sigaltstack.patch b/target/linux/patches/4.9.50/microblaze-sigaltstack.patch
index c4064e8b9..c4064e8b9 100644
--- a/target/linux/patches/4.9.40/microblaze-sigaltstack.patch
+++ b/target/linux/patches/4.9.50/microblaze-sigaltstack.patch
diff --git a/target/linux/patches/4.9.40/or1k-more-ram.patch b/target/linux/patches/4.9.50/or1k-more-ram.patch
index de848c838..de848c838 100644
--- a/target/linux/patches/4.9.40/or1k-more-ram.patch
+++ b/target/linux/patches/4.9.50/or1k-more-ram.patch
diff --git a/target/linux/patches/4.9.40/patch-realtime b/target/linux/patches/4.9.50/patch-realtime
index 7abba16fe..7abba16fe 100644
--- a/target/linux/patches/4.9.40/patch-realtime
+++ b/target/linux/patches/4.9.50/patch-realtime
diff --git a/target/linux/patches/4.9.40/sh2.patch b/target/linux/patches/4.9.50/sh2.patch
index 9debe80ad..9debe80ad 100644
--- a/target/linux/patches/4.9.40/sh2.patch
+++ b/target/linux/patches/4.9.50/sh2.patch
diff --git a/target/linux/patches/4.4.79/startup.patch b/target/linux/patches/4.9.50/startup.patch
index e54ac19a6..e54ac19a6 100644
--- a/target/linux/patches/4.4.79/startup.patch
+++ b/target/linux/patches/4.9.50/startup.patch
diff --git a/target/linux/patches/4.9.40/vdso2.patch b/target/linux/patches/4.9.50/vdso2.patch
index 35df488a8..35df488a8 100644
--- a/target/linux/patches/4.9.40/vdso2.patch
+++ b/target/linux/patches/4.9.50/vdso2.patch