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-rw-r--r--arch/Kconfig16
-rw-r--r--arch/alpha/Kconfig1
-rw-r--r--arch/alpha/boot/head.S1
-rw-r--r--arch/alpha/kernel/srm_env.c2
-rw-r--r--arch/alpha/kernel/traps.c2
-rw-r--r--arch/arc/Kbuild2
-rw-r--r--arch/arc/Kconfig453
-rw-r--r--arch/arc/Kconfig.debug34
-rw-r--r--arch/arc/Makefile126
-rw-r--r--arch/arc/boot/Makefile26
-rw-r--r--arch/arc/boot/dts/Makefile13
-rw-r--r--arch/arc/boot/dts/angel4.dts55
-rw-r--r--arch/arc/boot/dts/skeleton.dts10
-rw-r--r--arch/arc/boot/dts/skeleton.dtsi37
-rw-r--r--arch/arc/configs/fpga_defconfig61
-rw-r--r--arch/arc/include/asm/Kbuild49
-rw-r--r--arch/arc/include/asm/arcregs.h433
-rw-r--r--arch/arc/include/asm/asm-offsets.h9
-rw-r--r--arch/arc/include/asm/atomic.h232
-rw-r--r--arch/arc/include/asm/barrier.h42
-rw-r--r--arch/arc/include/asm/bitops.h516
-rw-r--r--arch/arc/include/asm/bug.h37
-rw-r--r--arch/arc/include/asm/cache.h75
-rw-r--r--arch/arc/include/asm/cacheflush.h67
-rw-r--r--arch/arc/include/asm/checksum.h101
-rw-r--r--arch/arc/include/asm/clk.h22
-rw-r--r--arch/arc/include/asm/cmpxchg.h143
-rw-r--r--arch/arc/include/asm/current.h32
-rw-r--r--arch/arc/include/asm/defines.h56
-rw-r--r--arch/arc/include/asm/delay.h68
-rw-r--r--arch/arc/include/asm/disasm.h116
-rw-r--r--arch/arc/include/asm/dma-mapping.h221
-rw-r--r--arch/arc/include/asm/dma.h14
-rw-r--r--arch/arc/include/asm/elf.h78
-rw-r--r--arch/arc/include/asm/entry.h724
-rw-r--r--arch/arc/include/asm/exec.h15
-rw-r--r--arch/arc/include/asm/futex.h151
-rw-r--r--arch/arc/include/asm/io.h105
-rw-r--r--arch/arc/include/asm/irq.h25
-rw-r--r--arch/arc/include/asm/irqflags.h153
-rw-r--r--arch/arc/include/asm/kdebug.h19
-rw-r--r--arch/arc/include/asm/kgdb.h61
-rw-r--r--arch/arc/include/asm/kprobes.h62
-rw-r--r--arch/arc/include/asm/linkage.h63
-rw-r--r--arch/arc/include/asm/mach_desc.h87
-rw-r--r--arch/arc/include/asm/mmu.h23
-rw-r--r--arch/arc/include/asm/mmu_context.h213
-rw-r--r--arch/arc/include/asm/module.h28
-rw-r--r--arch/arc/include/asm/mutex.h18
-rw-r--r--arch/arc/include/asm/page.h109
-rw-r--r--arch/arc/include/asm/perf_event.h13
-rw-r--r--arch/arc/include/asm/pgalloc.h134
-rw-r--r--arch/arc/include/asm/pgtable.h405
-rw-r--r--arch/arc/include/asm/processor.h151
-rw-r--r--arch/arc/include/asm/prom.h14
-rw-r--r--arch/arc/include/asm/ptrace.h130
-rw-r--r--arch/arc/include/asm/sections.h18
-rw-r--r--arch/arc/include/asm/segment.h24
-rw-r--r--arch/arc/include/asm/serial.h25
-rw-r--r--arch/arc/include/asm/setup.h37
-rw-r--r--arch/arc/include/asm/smp.h130
-rw-r--r--arch/arc/include/asm/spinlock.h144
-rw-r--r--arch/arc/include/asm/spinlock_types.h35
-rw-r--r--arch/arc/include/asm/string.h40
-rw-r--r--arch/arc/include/asm/switch_to.h41
-rw-r--r--arch/arc/include/asm/syscall.h72
-rw-r--r--arch/arc/include/asm/syscalls.h29
-rw-r--r--arch/arc/include/asm/thread_info.h121
-rw-r--r--arch/arc/include/asm/timex.h18
-rw-r--r--arch/arc/include/asm/tlb-mmu1.h104
-rw-r--r--arch/arc/include/asm/tlb.h58
-rw-r--r--arch/arc/include/asm/tlbflush.h28
-rw-r--r--arch/arc/include/asm/uaccess.h751
-rw-r--r--arch/arc/include/asm/unaligned.h29
-rw-r--r--arch/arc/include/asm/unwind.h163
-rw-r--r--arch/arc/include/uapi/asm/Kbuild12
-rw-r--r--arch/arc/include/uapi/asm/byteorder.h18
-rw-r--r--arch/arc/include/uapi/asm/cachectl.h28
-rw-r--r--arch/arc/include/uapi/asm/elf.h26
-rw-r--r--arch/arc/include/uapi/asm/page.h39
-rw-r--r--arch/arc/include/uapi/asm/ptrace.h48
-rw-r--r--arch/arc/include/uapi/asm/setup.h6
-rw-r--r--arch/arc/include/uapi/asm/sigcontext.h22
-rw-r--r--arch/arc/include/uapi/asm/signal.h27
-rw-r--r--arch/arc/include/uapi/asm/swab.h98
-rw-r--r--arch/arc/include/uapi/asm/unistd.h34
-rw-r--r--arch/arc/kernel/Makefile33
-rw-r--r--arch/arc/kernel/arc_hostlink.c58
-rw-r--r--arch/arc/kernel/arcksyms.c56
-rw-r--r--arch/arc/kernel/asm-offsets.c64
-rw-r--r--arch/arc/kernel/clk.c21
-rw-r--r--arch/arc/kernel/ctx_sw.c109
-rw-r--r--arch/arc/kernel/ctx_sw_asm.S58
-rw-r--r--arch/arc/kernel/devtree.c123
-rw-r--r--arch/arc/kernel/disasm.c538
-rw-r--r--arch/arc/kernel/entry.S839
-rw-r--r--arch/arc/kernel/fpu.c55
-rw-r--r--arch/arc/kernel/head.S111
-rw-r--r--arch/arc/kernel/irq.c273
-rw-r--r--arch/arc/kernel/kgdb.c205
-rw-r--r--arch/arc/kernel/kprobes.c525
-rw-r--r--arch/arc/kernel/module.c145
-rw-r--r--arch/arc/kernel/process.c235
-rw-r--r--arch/arc/kernel/ptrace.c158
-rw-r--r--arch/arc/kernel/reset.c33
-rw-r--r--arch/arc/kernel/setup.c473
-rw-r--r--arch/arc/kernel/signal.c360
-rw-r--r--arch/arc/kernel/smp.c332
-rw-r--r--arch/arc/kernel/stacktrace.c254
-rw-r--r--arch/arc/kernel/sys.c18
-rw-r--r--arch/arc/kernel/time.c265
-rw-r--r--arch/arc/kernel/traps.c170
-rw-r--r--arch/arc/kernel/troubleshoot.c322
-rw-r--r--arch/arc/kernel/unaligned.c245
-rw-r--r--arch/arc/kernel/unwind.c1329
-rw-r--r--arch/arc/kernel/vmlinux.lds.S163
-rw-r--r--arch/arc/lib/Makefile9
-rw-r--r--arch/arc/lib/memcmp.S124
-rw-r--r--arch/arc/lib/memcpy-700.S66
-rw-r--r--arch/arc/lib/memset.S59
-rw-r--r--arch/arc/lib/strchr-700.S123
-rw-r--r--arch/arc/lib/strcmp.S96
-rw-r--r--arch/arc/lib/strcpy-700.S70
-rw-r--r--arch/arc/lib/strlen.S83
-rw-r--r--arch/arc/mm/Makefile10
-rw-r--r--arch/arc/mm/cache_arc700.c768
-rw-r--r--arch/arc/mm/dma.c94
-rw-r--r--arch/arc/mm/extable.c63
-rw-r--r--arch/arc/mm/fault.c228
-rw-r--r--arch/arc/mm/init.c187
-rw-r--r--arch/arc/mm/ioremap.c91
-rw-r--r--arch/arc/mm/tlb.c645
-rw-r--r--arch/arc/mm/tlbex.S408
-rw-r--r--arch/arc/oprofile/Makefile9
-rw-r--r--arch/arc/oprofile/common.c26
-rw-r--r--arch/arc/plat-arcfpga/Kconfig84
-rw-r--r--arch/arc/plat-arcfpga/Makefile12
-rw-r--r--arch/arc/plat-arcfpga/include/plat/irq.h31
-rw-r--r--arch/arc/plat-arcfpga/include/plat/memmap.h31
-rw-r--r--arch/arc/plat-arcfpga/include/plat/smp.h118
-rw-r--r--arch/arc/plat-arcfpga/irq.c25
-rw-r--r--arch/arc/plat-arcfpga/platform.c226
-rw-r--r--arch/arc/plat-arcfpga/smp.c171
-rw-r--r--arch/arm/Kconfig40
-rw-r--r--arch/arm/Kconfig.debug3
-rw-r--r--arch/arm/boot/Makefile6
-rw-r--r--arch/arm/boot/compressed/Makefile2
-rw-r--r--arch/arm/boot/dts/Makefile13
-rw-r--r--arch/arm/boot/dts/am33xx.dtsi14
-rw-r--r--arch/arm/boot/dts/armada-370-db.dts35
-rw-r--r--arch/arm/boot/dts/armada-370-mirabox.dts18
-rw-r--r--arch/arm/boot/dts/armada-370-rd.dts76
-rw-r--r--arch/arm/boot/dts/armada-370-xp.dtsi54
-rw-r--r--arch/arm/boot/dts/armada-370.dtsi21
-rw-r--r--arch/arm/boot/dts/armada-xp-db.dts31
-rw-r--r--arch/arm/boot/dts/armada-xp-gp.dts113
-rw-r--r--arch/arm/boot/dts/armada-xp-mv78230.dtsi6
-rw-r--r--arch/arm/boot/dts/armada-xp-mv78260.dtsi6
-rw-r--r--arch/arm/boot/dts/armada-xp-mv78460.dtsi6
-rw-r--r--arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts18
-rw-r--r--arch/arm/boot/dts/armada-xp.dtsi23
-rw-r--r--arch/arm/boot/dts/at91sam9x5.dtsi28
-rw-r--r--arch/arm/boot/dts/bcm2835.dtsi2
-rw-r--r--arch/arm/boot/dts/dbx5x0.dtsi3
-rw-r--r--arch/arm/boot/dts/dove-cubox.dts28
-rw-r--r--arch/arm/boot/dts/dove.dtsi29
-rw-r--r--arch/arm/boot/dts/exynos4.dtsi9
-rw-r--r--arch/arm/boot/dts/exynos5250-smdk5250.dts1
-rw-r--r--arch/arm/boot/dts/exynos5250.dtsi12
-rw-r--r--arch/arm/boot/dts/exynos5440.dtsi6
-rw-r--r--arch/arm/boot/dts/href.dtsi2
-rw-r--r--arch/arm/boot/dts/hrefv60plus.dts2
-rw-r--r--arch/arm/boot/dts/imx25-karo-tx25.dts30
-rw-r--r--arch/arm/boot/dts/imx25-pdk.dts36
-rw-r--r--arch/arm/boot/dts/imx25.dtsi2
-rw-r--r--arch/arm/boot/dts/imx27-apf27.dts82
-rw-r--r--arch/arm/boot/dts/imx27-pdk.dts (renamed from arch/arm/boot/dts/imx27-3ds.dts)24
-rw-r--r--arch/arm/boot/dts/imx31-bug.dts12
-rw-r--r--arch/arm/boot/dts/imx51-apf51.dts52
-rw-r--r--arch/arm/boot/dts/imx51-babbage.dts478
-rw-r--r--arch/arm/boot/dts/imx51.dtsi53
-rw-r--r--arch/arm/boot/dts/imx53-ard.dts126
-rw-r--r--arch/arm/boot/dts/imx53-evk.dts194
-rw-r--r--arch/arm/boot/dts/imx53-mba53.dts129
-rw-r--r--arch/arm/boot/dts/imx53-qsb.dts380
-rw-r--r--arch/arm/boot/dts/imx53-smd.dts294
-rw-r--r--arch/arm/boot/dts/imx53-tqma53.dtsi172
-rw-r--r--arch/arm/boot/dts/imx53.dtsi68
-rw-r--r--arch/arm/boot/dts/imx6dl.dtsi59
-rw-r--r--arch/arm/boot/dts/imx6q-arm2.dts124
-rw-r--r--arch/arm/boot/dts/imx6q-sabreauto.dts64
-rw-r--r--arch/arm/boot/dts/imx6q-sabrelite.dts216
-rw-r--r--arch/arm/boot/dts/imx6q-sabresd.dts102
-rw-r--r--arch/arm/boot/dts/imx6q.dtsi796
-rw-r--r--arch/arm/boot/dts/imx6qdl.dtsi800
-rw-r--r--arch/arm/boot/dts/kirkwood-6282.dtsi17
-rw-r--r--arch/arm/boot/dts/kirkwood-dns320.dts2
-rw-r--r--arch/arm/boot/dts/kirkwood-dns325.dts1
-rw-r--r--arch/arm/boot/dts/kirkwood-dockstar.dts1
-rw-r--r--arch/arm/boot/dts/kirkwood-dreamplug.dts8
-rw-r--r--arch/arm/boot/dts/kirkwood-goflexnet.dts1
-rw-r--r--arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts94
-rw-r--r--arch/arm/boot/dts/kirkwood-ib62x0.dts1
-rw-r--r--arch/arm/boot/dts/kirkwood-iconnect.dts1
-rw-r--r--arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts1
-rw-r--r--arch/arm/boot/dts/kirkwood-km_kirkwood.dts1
-rw-r--r--arch/arm/boot/dts/kirkwood-lschlv2.dts1
-rw-r--r--arch/arm/boot/dts/kirkwood-lsxhl.dts1
-rw-r--r--arch/arm/boot/dts/kirkwood-mplcec4.dts12
-rw-r--r--arch/arm/boot/dts/kirkwood-ns2-common.dtsi7
-rw-r--r--arch/arm/boot/dts/kirkwood-nsa310.dts127
-rw-r--r--arch/arm/boot/dts/kirkwood-openblocks_a6.dts118
-rw-r--r--arch/arm/boot/dts/kirkwood-topkick.dts103
-rw-r--r--arch/arm/boot/dts/kirkwood.dtsi13
-rw-r--r--arch/arm/boot/dts/mmp2-brownstone.dts158
-rw-r--r--arch/arm/boot/dts/mmp2.dtsi4
-rw-r--r--arch/arm/boot/dts/orion5x-lacie-ethernet-disk-mini-v2.dts2
-rw-r--r--arch/arm/boot/dts/snowball.dts2
-rw-r--r--arch/arm/boot/dts/socfpga.dtsi3
-rw-r--r--arch/arm/boot/dts/tegra20.dtsi3
-rw-r--r--arch/arm/boot/dts/tegra30.dtsi3
-rw-r--r--arch/arm/configs/dove_defconfig28
-rw-r--r--arch/arm/configs/mvebu_defconfig26
-rw-r--r--arch/arm/configs/mxs_defconfig1
-rw-r--r--arch/arm/configs/omap2plus_defconfig2
-rw-r--r--arch/arm/include/asm/delay.h1
-rw-r--r--arch/arm/include/asm/device.h6
-rw-r--r--arch/arm/include/asm/dma-iommu.h2
-rw-r--r--arch/arm/include/asm/hardware/pl080.h146
-rw-r--r--arch/arm/include/asm/kvm_host.h2
-rw-r--r--arch/arm/include/asm/mmu.h8
-rw-r--r--arch/arm/include/asm/mmu_context.h2
-rw-r--r--arch/arm/include/asm/pgtable.h3
-rw-r--r--arch/arm/include/asm/tlbflush.h34
-rw-r--r--arch/arm/include/uapi/asm/unistd.h2
-rw-r--r--arch/arm/kernel/asm-offsets.c2
-rw-r--r--arch/arm/kernel/calls.S2
-rw-r--r--arch/arm/kernel/head.S26
-rw-r--r--arch/arm/kernel/hw_breakpoint.c2
-rw-r--r--arch/arm/kernel/kprobes.c6
-rw-r--r--arch/arm/kernel/perf_event.c4
-rw-r--r--arch/arm/kernel/perf_event_v7.c2
-rw-r--r--arch/arm/kernel/smp.c8
-rw-r--r--arch/arm/kernel/smp_tlb.c12
-rw-r--r--arch/arm/kernel/smp_twd.c4
-rw-r--r--arch/arm/kernel/suspend.c1
-rw-r--r--arch/arm/kernel/traps.c2
-rw-r--r--arch/arm/kvm/arm.c4
-rw-r--r--arch/arm/kvm/mmu.c5
-rw-r--r--arch/arm/lib/delay.c1
-rw-r--r--arch/arm/lib/memset.S100
-rw-r--r--arch/arm/mach-at91/board-foxg20.c1
-rw-r--r--arch/arm/mach-at91/board-stamp9g20.c1
-rw-r--r--arch/arm/mach-at91/include/mach/gpio.h8
-rw-r--r--arch/arm/mach-at91/irq.c20
-rw-r--r--arch/arm/mach-at91/pm.c10
-rw-r--r--arch/arm/mach-davinci/board-da850-evm.c13
-rw-r--r--arch/arm/mach-davinci/board-dm644x-evm.c8
-rw-r--r--arch/arm/mach-davinci/dm644x.c10
-rw-r--r--arch/arm/mach-davinci/dma.c3
-rw-r--r--arch/arm/mach-dove/Kconfig7
-rw-r--r--arch/arm/mach-dove/Makefile4
-rw-r--r--arch/arm/mach-dove/board-dt.c92
-rw-r--r--arch/arm/mach-dove/common.c85
-rw-r--r--arch/arm/mach-exynos/Kconfig5
-rw-r--r--arch/arm/mach-exynos/Makefile1
-rw-r--r--arch/arm/mach-exynos/clock-exynos4.c41
-rw-r--r--arch/arm/mach-exynos/clock-exynos4210.c9
-rw-r--r--arch/arm/mach-exynos/clock-exynos4212.c23
-rw-r--r--arch/arm/mach-exynos/clock-exynos5.c62
-rw-r--r--arch/arm/mach-exynos/dev-sysmmu.c274
-rw-r--r--arch/arm/mach-exynos/include/mach/sysmmu.h66
-rw-r--r--arch/arm/mach-exynos/mach-exynos4-dt.c34
-rw-r--r--arch/arm/mach-exynos/mach-exynos5-dt.c30
-rw-r--r--arch/arm/mach-exynos/mach-nuri.c8
-rw-r--r--arch/arm/mach-exynos/mach-universal_c210.c8
-rw-r--r--arch/arm/mach-footbridge/Kconfig1
-rw-r--r--arch/arm/mach-imx/clk-imx35.c1
-rw-r--r--arch/arm/mach-imx/clk-imx51-imx53.c4
-rw-r--r--arch/arm/mach-imx/clk-imx6q.c28
-rw-r--r--arch/arm/mach-imx/headsmp.S18
-rw-r--r--arch/arm/mach-imx/imx25-dt.c5
-rw-r--r--arch/arm/mach-imx/mach-imx6q.c65
-rw-r--r--arch/arm/mach-imx/pm-imx6q.c15
-rw-r--r--arch/arm/mach-ixp4xx/vulcan-setup.c1
-rw-r--r--arch/arm/mach-kirkwood/Kconfig7
-rw-r--r--arch/arm/mach-kirkwood/Makefile1
-rw-r--r--arch/arm/mach-kirkwood/board-dreamplug.c6
-rw-r--r--arch/arm/mach-kirkwood/board-dt.c35
-rw-r--r--arch/arm/mach-kirkwood/board-guruplug.c39
-rw-r--r--arch/arm/mach-kirkwood/board-mplcec4.c7
-rw-r--r--arch/arm/mach-kirkwood/board-ns2.c14
-rw-r--r--arch/arm/mach-kirkwood/board-nsa310.c70
-rw-r--r--arch/arm/mach-kirkwood/board-openblocks_a6.c44
-rw-r--r--arch/arm/mach-kirkwood/board-usi_topkick.c48
-rw-r--r--arch/arm/mach-kirkwood/common.h11
-rw-r--r--arch/arm/mach-mmp/gplugd.c1
-rw-r--r--arch/arm/mach-mvebu/irq-armada-370-xp.c87
-rw-r--r--arch/arm/mach-mxs/icoll.c2
-rw-r--r--arch/arm/mach-mxs/mach-mxs.c34
-rw-r--r--arch/arm/mach-mxs/mm.c1
-rw-r--r--arch/arm/mach-mxs/ocotp.c1
-rw-r--r--arch/arm/mach-netx/generic.c2
-rw-r--r--arch/arm/mach-netx/include/mach/irqs.h64
-rw-r--r--arch/arm/mach-omap1/common.h2
-rw-r--r--arch/arm/mach-omap2/Kconfig6
-rw-r--r--arch/arm/mach-omap2/Makefile3
-rw-r--r--arch/arm/mach-omap2/am33xx-restart.c34
-rw-r--r--arch/arm/mach-omap2/am35xx-emac.c3
-rw-r--r--arch/arm/mach-omap2/board-generic.c3
-rw-r--r--arch/arm/mach-omap2/board-rx51-peripherals.c8
-rw-r--r--arch/arm/mach-omap2/board-rx51.c2
-rw-r--r--arch/arm/mach-omap2/board-zoom-display.c14
-rw-r--r--arch/arm/mach-omap2/cclock33xx_data.c10
-rw-r--r--arch/arm/mach-omap2/cclock3xxx_data.c10
-rw-r--r--arch/arm/mach-omap2/cclock44xx_data.c13
-rw-r--r--arch/arm/mach-omap2/clock.h11
-rw-r--r--arch/arm/mach-omap2/cm33xx.c3
-rw-r--r--arch/arm/mach-omap2/cm33xx.h9
-rw-r--r--arch/arm/mach-omap2/common.h9
-rw-r--r--arch/arm/mach-omap2/devices.c2
-rw-r--r--arch/arm/mach-omap2/dpll3xxx.c5
-rw-r--r--arch/arm/mach-omap2/gpmc.c6
-rw-r--r--arch/arm/mach-omap2/id.c14
-rw-r--r--arch/arm/mach-omap2/mux.c9
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c23
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.h8
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_33xx_data.c443
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_3xxx_data.c7
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_44xx_data.c51
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_reset.c53
-rw-r--r--arch/arm/mach-omap2/pm.c20
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-rw-r--r--arch/s390/kernel/entry.S3
-rw-r--r--arch/s390/kernel/entry64.S5
-rw-r--r--arch/s390/kernel/kprobes.c8
-rw-r--r--arch/s390/kernel/module.c2
-rw-r--r--arch/s390/kernel/setup.c2
-rw-r--r--arch/s390/kernel/signal.c8
-rw-r--r--arch/s390/kernel/syscalls.S6
-rw-r--r--arch/s390/kernel/traps.c2
-rw-r--r--arch/s390/lib/uaccess_mvcos.c26
-rw-r--r--arch/s390/lib/uaccess_pt.c129
-rw-r--r--arch/s390/lib/uaccess_std.c48
-rw-r--r--arch/s390/mm/dump_pagetables.c25
-rw-r--r--arch/s390/mm/vmem.c3
-rw-r--r--arch/s390/pci/pci_debug.c4
-rw-r--r--arch/s390/pci/pci_msi.c3
-rw-r--r--arch/score/Kconfig1
-rw-r--r--arch/score/include/asm/elf.h5
-rw-r--r--arch/sh/Kconfig3
-rw-r--r--arch/sh/kernel/kprobes.c6
-rw-r--r--arch/sh/kernel/traps.c2
-rw-r--r--arch/sh/mm/alignment.c2
-rw-r--r--arch/sparc/Kconfig11
-rw-r--r--arch/sparc/include/asm/elf_32.h3
-rw-r--r--arch/sparc/include/asm/spitfire.h1
-rw-r--r--arch/sparc/kernel/cpu.c6
-rw-r--r--arch/sparc/kernel/head_64.S25
-rw-r--r--arch/sparc/kernel/kprobes.c6
-rw-r--r--arch/sparc/kernel/ldc.c3
-rw-r--r--arch/sparc/kernel/leon_pci_grpci2.c41
-rw-r--r--arch/sparc/kernel/setup_64.c2
-rw-r--r--arch/sparc/kernel/signal32.c2
-rw-r--r--arch/sparc/kernel/systbls_64.S6
-rw-r--r--arch/sparc/kernel/traps_32.c2
-rw-r--r--arch/sparc/kernel/traps_64.c2
-rw-r--r--arch/tile/Kconfig1
-rw-r--r--arch/tile/configs/tilegx_defconfig1
-rw-r--r--arch/tile/configs/tilepro_defconfig1
-rw-r--r--arch/tile/include/asm/compat.h3
-rw-r--r--arch/tile/kernel/compat.c42
-rw-r--r--arch/um/drivers/chan.h2
-rw-r--r--arch/um/drivers/chan_kern.c4
-rw-r--r--arch/um/drivers/chan_user.c12
-rw-r--r--arch/um/drivers/chan_user.h6
-rw-r--r--arch/um/drivers/line.c42
-rw-r--r--arch/um/drivers/net_kern.c2
-rw-r--r--arch/um/drivers/ssl.c1
-rw-r--r--arch/um/drivers/stdio_console.c1
-rw-r--r--arch/um/os-Linux/signal.c2
-rw-r--r--arch/um/os-Linux/start_up.c2
-rw-r--r--arch/unicore32/Kconfig1
-rw-r--r--arch/unicore32/kernel/traps.c2
-rw-r--r--arch/x86/Kconfig1
-rw-r--r--arch/x86/boot/compressed/eboot.c26
-rw-r--r--arch/x86/crypto/Makefile2
-rw-r--r--arch/x86/crypto/aes-i586-asm_32.S15
-rw-r--r--arch/x86/crypto/aes-x86_64-asm_64.S30
-rw-r--r--arch/x86/crypto/aesni-intel_asm.S23
-rw-r--r--arch/x86/crypto/blowfish-x86_64-asm_64.S39
-rw-r--r--arch/x86/crypto/camellia-aesni-avx-asm_64.S38
-rw-r--r--arch/x86/crypto/camellia-x86_64-asm_64.S50
-rw-r--r--arch/x86/crypto/cast5-avx-x86_64-asm_64.S48
-rw-r--r--arch/x86/crypto/cast6-avx-x86_64-asm_64.S35
-rw-r--r--arch/x86/crypto/crc32-pclmul_asm.S246
-rw-r--r--arch/x86/crypto/crc32-pclmul_glue.c201
-rw-r--r--arch/x86/crypto/crc32c-pcl-intel-asm_64.S8
-rw-r--r--arch/x86/crypto/ghash-clmulni-intel_asm.S4
-rw-r--r--arch/x86/crypto/salsa20-i586-asm_32.S28
-rw-r--r--arch/x86/crypto/salsa20-x86_64-asm_64.S28
-rw-r--r--arch/x86/crypto/salsa20_glue.c5
-rw-r--r--arch/x86/crypto/serpent-avx-x86_64-asm_64.S35
-rw-r--r--arch/x86/crypto/serpent-sse2-i586-asm_32.S20
-rw-r--r--arch/x86/crypto/serpent-sse2-x86_64-asm_64.S20
-rw-r--r--arch/x86/crypto/sha1_ssse3_asm.S10
-rw-r--r--arch/x86/crypto/twofish-avx-x86_64-asm_64.S35
-rw-r--r--arch/x86/crypto/twofish-i586-asm_32.S11
-rw-r--r--arch/x86/crypto/twofish-x86_64-asm_64-3way.S20
-rw-r--r--arch/x86/crypto/twofish-x86_64-asm_64.S11
-rw-r--r--arch/x86/ia32/ia32_aout.c6
-rw-r--r--arch/x86/ia32/sys_ia32.c5
-rw-r--r--arch/x86/include/asm/bootparam_utils.h20
-rw-r--r--arch/x86/include/asm/efi.h9
-rw-r--r--arch/x86/include/asm/ftrace.h24
-rw-r--r--arch/x86/include/asm/kprobes.h1
-rw-r--r--arch/x86/include/asm/kvm_host.h4
-rw-r--r--arch/x86/include/asm/pci.h3
-rw-r--r--arch/x86/include/asm/pci_x86.h1
-rw-r--r--arch/x86/include/asm/sys_ia32.h1
-rw-r--r--arch/x86/include/asm/thread_info.h1
-rw-r--r--arch/x86/kernel/apic/apic.c2
-rw-r--r--arch/x86/kernel/cpu/amd.c3
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce.c2
-rw-r--r--arch/x86/kernel/cpu/mcheck/p5.c2
-rw-r--r--arch/x86/kernel/cpu/mcheck/winchip.c2
-rw-r--r--arch/x86/kernel/cpu/mtrr/generic.c2
-rw-r--r--arch/x86/kernel/cpu/perf_event_intel.c27
-rw-r--r--arch/x86/kernel/cpu/perf_event_intel_ds.c10
-rw-r--r--arch/x86/kernel/cpuid.c4
-rw-r--r--arch/x86/kernel/dumpstack.c2
-rw-r--r--arch/x86/kernel/head.c53
-rw-r--r--arch/x86/kernel/head_64.S4
-rw-r--r--arch/x86/kernel/kprobes/core.c13
-rw-r--r--arch/x86/kernel/microcode_intel_early.c30
-rw-r--r--arch/x86/kernel/msr.c9
-rw-r--r--arch/x86/kernel/nmi.c1
-rw-r--r--arch/x86/kernel/pvclock.c2
-rw-r--r--arch/x86/kernel/setup.c26
-rw-r--r--arch/x86/kernel/smpboot.c3
-rw-r--r--arch/x86/kvm/mmu.c26
-rw-r--r--arch/x86/kvm/x86.c64
-rw-r--r--arch/x86/lib/usercopy_64.c4
-rw-r--r--arch/x86/mm/fault.c8
-rw-r--r--arch/x86/mm/init.c5
-rw-r--r--arch/x86/mm/numa.c14
-rw-r--r--arch/x86/mm/pageattr.c50
-rw-r--r--arch/x86/mm/pat.c7
-rw-r--r--arch/x86/mm/srat.c125
-rw-r--r--arch/x86/pci/acpi.c9
-rw-r--r--arch/x86/pci/common.c1
-rw-r--r--arch/x86/pci/i386.c185
-rw-r--r--arch/x86/pci/legacy.c2
-rw-r--r--arch/x86/pci/numaq_32.c2
-rw-r--r--arch/x86/platform/efi/efi.c10
-rw-r--r--arch/x86/power/cpu.c2
-rw-r--r--arch/x86/syscalls/syscall_32.tbl6
-rw-r--r--arch/xtensa/Kconfig47
-rw-r--r--arch/xtensa/Makefile6
-rw-r--r--arch/xtensa/boot/Makefile12
-rw-r--r--arch/xtensa/boot/dts/Makefile15
-rw-r--r--arch/xtensa/include/asm/atomic.h6
-rw-r--r--arch/xtensa/include/asm/checksum.h1
-rw-r--r--arch/xtensa/include/asm/elf.h3
-rw-r--r--arch/xtensa/include/asm/pgtable.h4
-rw-r--r--arch/xtensa/include/asm/processor.h4
-rw-r--r--arch/xtensa/include/asm/ptrace.h3
-rw-r--r--arch/xtensa/include/asm/regs.h1
-rw-r--r--arch/xtensa/include/asm/string.h4
-rw-r--r--arch/xtensa/include/asm/timex.h8
-rw-r--r--arch/xtensa/include/asm/traps.h24
-rw-r--r--arch/xtensa/include/uapi/asm/signal.h11
-rw-r--r--arch/xtensa/include/uapi/asm/unistd.h7
-rw-r--r--arch/xtensa/kernel/asm-offsets.c1
-rw-r--r--arch/xtensa/kernel/entry.S69
-rw-r--r--arch/xtensa/kernel/head.S9
-rw-r--r--arch/xtensa/kernel/process.c5
-rw-r--r--arch/xtensa/kernel/ptrace.c35
-rw-r--r--arch/xtensa/kernel/setup.c42
-rw-r--r--arch/xtensa/kernel/signal.c6
-rw-r--r--arch/xtensa/kernel/syscall.c41
-rw-r--r--arch/xtensa/kernel/traps.c76
-rw-r--r--arch/xtensa/kernel/vectors.S57
-rw-r--r--arch/xtensa/kernel/vmlinux.lds.S68
-rw-r--r--arch/xtensa/oprofile/Makefile9
-rw-r--r--arch/xtensa/oprofile/backtrace.c171
-rw-r--r--arch/xtensa/oprofile/init.c26
-rw-r--r--arch/xtensa/platforms/iss/Makefile1
-rw-r--r--arch/xtensa/platforms/iss/simdisk.c375
-rw-r--r--arch/xtensa/platforms/xtfpga/setup.c4
-rw-r--r--arch/xtensa/variants/dc233c/include/variant/core.h475
-rw-r--r--arch/xtensa/variants/dc233c/include/variant/tie-asm.h193
-rw-r--r--arch/xtensa/variants/dc233c/include/variant/tie.h150
1743 files changed, 69914 insertions, 21235 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 40e2b12c7916..1455579791ec 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -103,6 +103,22 @@ config UPROBES
If in doubt, say "N".
+config HAVE_64BIT_ALIGNED_ACCESS
+ def_bool 64BIT && !HAVE_EFFICIENT_UNALIGNED_ACCESS
+ help
+ Some architectures require 64 bit accesses to be 64 bit
+ aligned, which also requires structs containing 64 bit values
+ to be 64 bit aligned too. This includes some 32 bit
+ architectures which can do 64 bit accesses, as well as 64 bit
+ architectures without unaligned access.
+
+ This symbol should be selected by an architecture if 64 bit
+ accesses are required to be 64 bit aligned in this way even
+ though it is not a 64 bit architecture.
+
+ See Documentation/unaligned-memory-access.txt for more
+ information on the topic of unaligned memory accesses.
+
config HAVE_EFFICIENT_UNALIGNED_ACCESS
bool
help
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 1ecbf7a1b677..8a33ba01301f 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -9,6 +9,7 @@ config ALPHA
select HAVE_PERF_EVENTS
select HAVE_DMA_ATTRS
select HAVE_GENERIC_HARDIRQS
+ select VIRT_TO_BUS
select GENERIC_IRQ_PROBE
select AUTO_IRQ_AFFINITY if SMP
select GENERIC_IRQ_SHOW
diff --git a/arch/alpha/boot/head.S b/arch/alpha/boot/head.S
index b06812bcac83..8efb26686d47 100644
--- a/arch/alpha/boot/head.S
+++ b/arch/alpha/boot/head.S
@@ -4,6 +4,7 @@
* initial bootloader stuff..
*/
+#include <asm/pal.h>
.set noreorder
.globl __start
diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c
index b9fc6c309d2e..e64559f0a82d 100644
--- a/arch/alpha/kernel/srm_env.c
+++ b/arch/alpha/kernel/srm_env.c
@@ -111,7 +111,7 @@ static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer,
size_t count, loff_t *pos)
{
int res;
- srm_env_t *entry = PDE(file->f_path.dentry->d_inode)->data;
+ srm_env_t *entry = PDE(file_inode(file))->data;
char *buf = (char *) __get_free_page(GFP_USER);
unsigned long ret1, ret2;
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 272666d006df..4037461a6493 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -186,7 +186,7 @@ die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15)
#endif
printk("%s(%d): %s %ld\n", current->comm, task_pid_nr(current), str, err);
dik_show_regs(regs, r9_15);
- add_taint(TAINT_DIE);
+ add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
dik_show_trace((unsigned long *)(regs+1));
dik_show_code((unsigned int *)regs->pc);
diff --git a/arch/arc/Kbuild b/arch/arc/Kbuild
new file mode 100644
index 000000000000..082d329d3245
--- /dev/null
+++ b/arch/arc/Kbuild
@@ -0,0 +1,2 @@
+obj-y += kernel/
+obj-y += mm/
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
new file mode 100644
index 000000000000..e6f4eca09ee3
--- /dev/null
+++ b/arch/arc/Kconfig
@@ -0,0 +1,453 @@
+#
+# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+
+config ARC
+ def_bool y
+ select CLONE_BACKWARDS
+ # ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev
+ select DEVTMPFS if !INITRAMFS_SOURCE=""
+ select GENERIC_ATOMIC64
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_FIND_FIRST_BIT
+ # for now, we don't need GENERIC_IRQ_PROBE, CONFIG_GENERIC_IRQ_CHIP
+ select GENERIC_IRQ_SHOW
+ select GENERIC_KERNEL_EXECVE
+ select GENERIC_KERNEL_THREAD
+ select GENERIC_PENDING_IRQ if SMP
+ select GENERIC_SMP_IDLE_THREAD
+ select HAVE_ARCH_KGDB
+ select HAVE_ARCH_TRACEHOOK
+ select HAVE_GENERIC_HARDIRQS
+ select HAVE_IOREMAP_PROT
+ select HAVE_KPROBES
+ select HAVE_KRETPROBES
+ select HAVE_MEMBLOCK
+ select HAVE_MOD_ARCH_SPECIFIC if ARC_DW2_UNWIND
+ select HAVE_OPROFILE
+ select HAVE_PERF_EVENTS
+ select IRQ_DOMAIN
+ select MODULES_USE_ELF_RELA
+ select NO_BOOTMEM
+ select OF
+ select OF_EARLY_FLATTREE
+ select PERF_USE_VMALLOC
+
+config SCHED_OMIT_FRAME_POINTER
+ def_bool y
+
+config GENERIC_CSUM
+ def_bool y
+
+config RWSEM_GENERIC_SPINLOCK
+ def_bool y
+
+config ARCH_FLATMEM_ENABLE
+ def_bool y
+
+config MMU
+ def_bool y
+
+config NO_IOPORT
+ def_bool y
+
+config GENERIC_CALIBRATE_DELAY
+ def_bool y
+
+config GENERIC_HWEIGHT
+ def_bool y
+
+config BINFMT_ELF
+ def_bool y
+
+config STACKTRACE_SUPPORT
+ def_bool y
+ select STACKTRACE
+
+config HAVE_LATENCYTOP_SUPPORT
+ def_bool y
+
+config NO_DMA
+ def_bool n
+
+source "init/Kconfig"
+source "kernel/Kconfig.freezer"
+
+menu "ARC Architecture Configuration"
+
+menu "ARC Platform/SoC/Board"
+
+source "arch/arc/plat-arcfpga/Kconfig"
+#New platform adds here
+
+endmenu
+
+menu "ARC CPU Configuration"
+
+choice
+ prompt "ARC Core"
+ default ARC_CPU_770
+
+config ARC_CPU_750D
+ bool "ARC750D"
+ help
+ Support for ARC750 core
+
+config ARC_CPU_770
+ bool "ARC770"
+ select ARC_CPU_REL_4_10
+ help
+ Support for ARC770 core introduced with Rel 4.10 (Summer 2011)
+ This core has a bunch of cool new features:
+ -MMU-v3: Variable Page Sz (4k, 8k, 16k), bigger J-TLB (128x4)
+ Shared Address Spaces (for sharing TLB entires in MMU)
+ -Caches: New Prog Model, Region Flush
+ -Insns: endian swap, load-locked/store-conditional, time-stamp-ctr
+
+endchoice
+
+config CPU_BIG_ENDIAN
+ bool "Enable Big Endian Mode"
+ default n
+ help
+ Build kernel for Big Endian Mode of ARC CPU
+
+# If a platform can't work with 0x8000_0000 based dma_addr_t
+config ARC_PLAT_NEEDS_CPU_TO_DMA
+ bool
+
+config SMP
+ bool "Symmetric Multi-Processing (Incomplete)"
+ default n
+ select USE_GENERIC_SMP_HELPERS
+ help
+ This enables support for systems with more than one CPU. If you have
+ a system with only one CPU, like most personal computers, say N. If
+ you have a system with more than one CPU, say Y.
+
+if SMP
+
+config ARC_HAS_COH_CACHES
+ def_bool n
+
+config ARC_HAS_COH_LLSC
+ def_bool n
+
+config ARC_HAS_COH_RTSC
+ def_bool n
+
+config ARC_HAS_REENTRANT_IRQ_LV2
+ def_bool n
+
+endif
+
+config NR_CPUS
+ int "Maximum number of CPUs (2-32)"
+ range 2 32
+ depends on SMP
+ default "2"
+
+menuconfig ARC_CACHE
+ bool "Enable Cache Support"
+ default y
+ # if SMP, cache enabled ONLY if ARC implementation has cache coherency
+ depends on !SMP || ARC_HAS_COH_CACHES
+
+if ARC_CACHE
+
+config ARC_CACHE_LINE_SHIFT
+ int "Cache Line Length (as power of 2)"
+ range 5 7
+ default "6"
+ help
+ Starting with ARC700 4.9, Cache line length is configurable,
+ This option specifies "N", with Line-len = 2 power N
+ So line lengths of 32, 64, 128 are specified by 5,6,7, respectively
+ Linux only supports same line lengths for I and D caches.
+
+config ARC_HAS_ICACHE
+ bool "Use Instruction Cache"
+ default y
+
+config ARC_HAS_DCACHE
+ bool "Use Data Cache"
+ default y
+
+config ARC_CACHE_PAGES
+ bool "Per Page Cache Control"
+ default y
+ depends on ARC_HAS_ICACHE || ARC_HAS_DCACHE
+ help
+ This can be used to over-ride the global I/D Cache Enable on a
+ per-page basis (but only for pages accessed via MMU such as
+ Kernel Virtual address or User Virtual Address)
+ TLB entries have a per-page Cache Enable Bit.
+ Note that Global I/D ENABLE + Per Page DISABLE works but corollary
+ Global DISABLE + Per Page ENABLE won't work
+
+endif #ARC_CACHE
+
+config ARC_HAS_ICCM
+ bool "Use ICCM"
+ help
+ Single Cycle RAMS to store Fast Path Code
+ default n
+
+config ARC_ICCM_SZ
+ int "ICCM Size in KB"
+ default "64"
+ depends on ARC_HAS_ICCM
+
+config ARC_HAS_DCCM
+ bool "Use DCCM"
+ help
+ Single Cycle RAMS to store Fast Path Data
+ default n
+
+config ARC_DCCM_SZ
+ int "DCCM Size in KB"
+ default "64"
+ depends on ARC_HAS_DCCM
+
+config ARC_DCCM_BASE
+ hex "DCCM map address"
+ default "0xA0000000"
+ depends on ARC_HAS_DCCM
+
+config ARC_HAS_HW_MPY
+ bool "Use Hardware Multiplier (Normal or Faster XMAC)"
+ default y
+ help
+ Influences how gcc generates code for MPY operations.
+ If enabled, MPYxx insns are generated, provided by Standard/XMAC
+ Multipler. Otherwise software multipy lib is used
+
+choice
+ prompt "ARC700 MMU Version"
+ default ARC_MMU_V3 if ARC_CPU_770
+ default ARC_MMU_V2 if ARC_CPU_750D
+
+config ARC_MMU_V1
+ bool "MMU v1"
+ help
+ Orig ARC700 MMU
+
+config ARC_MMU_V2
+ bool "MMU v2"
+ help
+ Fixed the deficiency of v1 - possible thrashing in memcpy sceanrio
+ when 2 D-TLB and 1 I-TLB entries index into same 2way set.
+
+config ARC_MMU_V3
+ bool "MMU v3"
+ depends on ARC_CPU_770
+ help
+ Introduced with ARC700 4.10: New Features
+ Variable Page size (1k-16k), var JTLB size 128 x (2 or 4)
+ Shared Address Spaces (SASID)
+
+endchoice
+
+
+choice
+ prompt "MMU Page Size"
+ default ARC_PAGE_SIZE_8K
+
+config ARC_PAGE_SIZE_8K
+ bool "8KB"
+ help
+ Choose between 8k vs 16k
+
+config ARC_PAGE_SIZE_16K
+ bool "16KB"
+ depends on ARC_MMU_V3
+
+config ARC_PAGE_SIZE_4K
+ bool "4KB"
+ depends on ARC_MMU_V3
+
+endchoice
+
+config ARC_COMPACT_IRQ_LEVELS
+ bool "ARCompact IRQ Priorities: High(2)/Low(1)"
+ default n
+ # Timer HAS to be high priority, for any other high priority config
+ select ARC_IRQ3_LV2
+ # if SMP, LV2 enabled ONLY if ARC implementation has LV2 re-entrancy
+ depends on !SMP || ARC_HAS_REENTRANT_IRQ_LV2
+
+if ARC_COMPACT_IRQ_LEVELS
+
+config ARC_IRQ3_LV2
+ bool
+
+config ARC_IRQ5_LV2
+ bool
+
+config ARC_IRQ6_LV2
+ bool
+
+endif
+
+config ARC_FPU_SAVE_RESTORE
+ bool "Enable FPU state persistence across context switch"
+ default n
+ help
+ Double Precision Floating Point unit had dedictaed regs which
+ need to be saved/restored across context-switch.
+ Note that ARC FPU is overly simplistic, unlike say x86, which has
+ hardware pieces to allow software to conditionally save/restore,
+ based on actual usage of FPU by a task. Thus our implemn does
+ this for all tasks in system.
+
+menuconfig ARC_CPU_REL_4_10
+ bool "Enable support for Rel 4.10 features"
+ default n
+ help
+ -ARC770 (and dependent features) enabled
+ -ARC750 also shares some of the new features with 770
+
+config ARC_HAS_LLSC
+ bool "Insn: LLOCK/SCOND (efficient atomic ops)"
+ default y
+ depends on ARC_CPU_770
+ # if SMP, enable LLSC ONLY if ARC implementation has coherent atomics
+ depends on !SMP || ARC_HAS_COH_LLSC
+
+config ARC_HAS_SWAPE
+ bool "Insn: SWAPE (endian-swap)"
+ default y
+ depends on ARC_CPU_REL_4_10
+
+config ARC_HAS_RTSC
+ bool "Insn: RTSC (64-bit r/o cycle counter)"
+ default y
+ depends on ARC_CPU_REL_4_10
+ # if SMP, enable RTSC only if counter is coherent across cores
+ depends on !SMP || ARC_HAS_COH_RTSC
+
+endmenu # "ARC CPU Configuration"
+
+config LINUX_LINK_BASE
+ hex "Linux Link Address"
+ default "0x80000000"
+ help
+ ARC700 divides the 32 bit phy address space into two equal halves
+ -Lower 2G (0 - 0x7FFF_FFFF ) is user virtual, translated by MMU
+ -Upper 2G (0x8000_0000 onwards) is untranslated, for kernel
+ Typically Linux kernel is linked at the start of untransalted addr,
+ hence the default value of 0x8zs.
+ However some customers have peripherals mapped at this addr, so
+ Linux needs to be scooted a bit.
+ If you don't know what the above means, leave this setting alone.
+
+config ARC_CURR_IN_REG
+ bool "Dedicate Register r25 for current_task pointer"
+ default y
+ help
+ This reserved Register R25 to point to Current Task in
+ kernel mode. This saves memory access for each such access
+
+
+config ARC_MISALIGN_ACCESS
+ bool "Emulate unaligned memory access (userspace only)"
+ default N
+ select SYSCTL_ARCH_UNALIGN_NO_WARN
+ select SYSCTL_ARCH_UNALIGN_ALLOW
+ help
+ This enables misaligned 16 & 32 bit memory access from user space.
+ Use ONLY-IF-ABS-NECESSARY as it will be very slow and also can hide
+ potential bugs in code
+
+config ARC_STACK_NONEXEC
+ bool "Make stack non-executable"
+ default n
+ help
+ To disable the execute permissions of stack/heap of processes
+ which are enabled by default.
+
+config HZ
+ int "Timer Frequency"
+ default 100
+
+config ARC_METAWARE_HLINK
+ bool "Support for Metaware debugger assisted Host access"
+ default n
+ help
+ This options allows a Linux userland apps to directly access
+ host file system (open/creat/read/write etc) with help from
+ Metaware Debugger. This can come in handy for Linux-host communication
+ when there is no real usable peripheral such as EMAC.
+
+menuconfig ARC_DBG
+ bool "ARC debugging"
+ default y
+
+config ARC_DW2_UNWIND
+ bool "Enable DWARF specific kernel stack unwind"
+ depends on ARC_DBG
+ default y
+ select KALLSYMS
+ help
+ Compiles the kernel with DWARF unwind information and can be used
+ to get stack backtraces.
+
+ If you say Y here the resulting kernel image will be slightly larger
+ but not slower, and it will give very useful debugging information.
+ If you don't debug the kernel, you can say N, but we may not be able
+ to solve problems without frame unwind information
+
+config ARC_DBG_TLB_PARANOIA
+ bool "Paranoia Checks in Low Level TLB Handlers"
+ depends on ARC_DBG
+ default n
+
+config ARC_DBG_TLB_MISS_COUNT
+ bool "Profile TLB Misses"
+ default n
+ select DEBUG_FS
+ depends on ARC_DBG
+ help
+ Counts number of I and D TLB Misses and exports them via Debugfs
+ The counters can be cleared via Debugfs as well
+
+config CMDLINE
+ string "Kernel command line to built-in"
+ default "print-fatal-signals=1"
+ help
+ The default command line which will be appended to the optional
+ u-boot provided command line (see below)
+
+config CMDLINE_UBOOT
+ bool "Support U-boot kernel command line passing"
+ default n
+ help
+ If you are using U-boot (www.denx.de) and wish to pass the kernel
+ command line from the U-boot environment to the Linux kernel then
+ switch this option on.
+ ARC U-boot will setup the cmdline in RAM/flash and set r2 to point
+ to it. kernel startup code will copy the string into cmdline buffer
+ and also append CONFIG_CMDLINE.
+
+config ARC_BUILTIN_DTB_NAME
+ string "Built in DTB"
+ help
+ Set the name of the DTB to embed in the vmlinux binary
+ Leaving it blank selects the minimal "skeleton" dtb
+
+source "kernel/Kconfig.preempt"
+
+endmenu # "ARC Architecture Configuration"
+
+source "mm/Kconfig"
+source "net/Kconfig"
+source "drivers/Kconfig"
+source "fs/Kconfig"
+source "arch/arc/Kconfig.debug"
+source "security/Kconfig"
+source "crypto/Kconfig"
+source "lib/Kconfig"
diff --git a/arch/arc/Kconfig.debug b/arch/arc/Kconfig.debug
new file mode 100644
index 000000000000..962c6099659e
--- /dev/null
+++ b/arch/arc/Kconfig.debug
@@ -0,0 +1,34 @@
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+config EARLY_PRINTK
+ bool "Early printk" if EMBEDDED
+ default y
+ help
+ Write kernel log output directly into the VGA buffer or to a serial
+ port.
+
+ 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.
+
+config DEBUG_STACKOVERFLOW
+ bool "Check for stack overflows"
+ depends on DEBUG_KERNEL
+ help
+ This option will cause messages to be printed if free stack space
+ drops below a certain limit.
+
+config 16KSTACKS
+ bool "Use 16Kb for kernel stacks instead of 8Kb"
+ help
+ If you say Y here the kernel will use a 16Kb stacksize for the
+ kernel stack attached to each process/thread. The default is 8K.
+ This increases the resident kernel footprint and will cause less
+ threads to run on the system and also increase the pressure
+ on the VM subsystem for higher order allocations.
+
+endmenu
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
new file mode 100644
index 000000000000..92379c7cbc1a
--- /dev/null
+++ b/arch/arc/Makefile
@@ -0,0 +1,126 @@
+#
+# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+
+UTS_MACHINE := arc
+
+KBUILD_DEFCONFIG := fpga_defconfig
+
+cflags-y += -mA7 -fno-common -pipe -fno-builtin -D__linux__
+
+LINUXINCLUDE += -include ${src}/arch/arc/include/asm/defines.h
+
+ifdef CONFIG_ARC_CURR_IN_REG
+# For a global register defintion, make sure it gets passed to every file
+# We had a customer reported bug where some code built in kernel was NOT using
+# any kernel headers, and missing the r25 global register
+# Can't do unconditionally (like above) because of recursive include issues
+# due to <linux/thread_info.h>
+LINUXINCLUDE += -include ${src}/arch/arc/include/asm/current.h
+endif
+
+atleast_gcc44 := $(call cc-ifversion, -gt, 0402, y)
+cflags-$(atleast_gcc44) += -fsection-anchors
+
+cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock
+cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape
+cflags-$(CONFIG_ARC_HAS_RTSC) += -mrtsc
+cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables
+
+ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE
+# Generic build system uses -O2, we want -O3
+cflags-y += -O3
+endif
+
+# small data is default for elf32 tool-chain. If not usable, disable it
+# This also allows repurposing GP as scratch reg to gcc reg allocator
+disable_small_data := y
+cflags-$(disable_small_data) += -mno-sdata -fcall-used-gp
+
+cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian
+ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
+
+# STAR 9000518362:
+# arc-linux-uclibc-ld (buildroot) or arceb-elf32-ld (EZChip) don't accept
+# --build-id w/o "-marclinux".
+# Default arc-elf32-ld is OK
+ldflags-y += -marclinux
+
+ARC_LIBGCC := -mA7
+cflags-$(CONFIG_ARC_HAS_HW_MPY) += -multcost=16
+
+ifndef CONFIG_ARC_HAS_HW_MPY
+ cflags-y += -mno-mpy
+
+# newlib for ARC700 assumes MPY to be always present, which is generally true
+# However, if someone really doesn't want MPY, we need to use the 600 ver
+# which coupled with -mno-mpy will use mpy emulation
+# With gcc 4.4.7, -mno-mpy is enough to make any other related adjustments,
+# e.g. increased cost of MPY. With gcc 4.2.1 this had to be explicitly hinted
+
+ ARC_LIBGCC := -marc600
+ ifneq ($(atleast_gcc44),y)
+ cflags-y += -multcost=30
+ endif
+endif
+
+LIBGCC := $(shell $(CC) $(ARC_LIBGCC) $(cflags-y) --print-libgcc-file-name)
+
+# Modules with short calls might break for calls into builtin-kernel
+KBUILD_CFLAGS_MODULE += -mlong-calls
+
+# Finally dump eveything into kernel build system
+KBUILD_CFLAGS += $(cflags-y)
+KBUILD_AFLAGS += $(KBUILD_CFLAGS)
+LDFLAGS += $(ldflags-y)
+
+head-y := arch/arc/kernel/head.o
+
+# See arch/arc/Kbuild for content of core part of the kernel
+core-y += arch/arc/
+
+# w/o this dtb won't embed into kernel binary
+core-y += arch/arc/boot/dts/
+
+core-$(CONFIG_ARC_PLAT_FPGA_LEGACY) += arch/arc/plat-arcfpga/
+
+drivers-$(CONFIG_OPROFILE) += arch/arc/oprofile/
+
+libs-y += arch/arc/lib/ $(LIBGCC)
+
+#default target for make without any arguements.
+KBUILD_IMAGE := bootpImage
+
+all: $(KBUILD_IMAGE)
+boot := arch/arc/boot
+
+bootpImage: vmlinux
+
+uImage: vmlinux
+ $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+%.dtb %.dtb.S %.dtb.o: scripts
+ $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
+
+dtbs: scripts
+ $(Q)$(MAKE) $(build)=$(boot)/dts dtbs
+
+archclean:
+ $(Q)$(MAKE) $(clean)=$(boot)
+
+# Hacks to enable final link due to absence of link-time branch relexation
+# and gcc choosing optimal(shorter) branches at -O3
+#
+# vineetg Feb 2010: -mlong-calls switched off for overall kernel build
+# However lib/decompress_inflate.o (.init.text) calls
+# zlib_inflate_workspacesize (.text) causing relocation errors.
+# Thus forcing all exten calls in this file to be long calls
+export CFLAGS_decompress_inflate.o = -mmedium-calls
+export CFLAGS_initramfs.o = -mmedium-calls
+ifdef CONFIG_SMP
+export CFLAGS_core.o = -mmedium-calls
+endif
diff --git a/arch/arc/boot/Makefile b/arch/arc/boot/Makefile
new file mode 100644
index 000000000000..7d514c24e095
--- /dev/null
+++ b/arch/arc/boot/Makefile
@@ -0,0 +1,26 @@
+targets := vmlinux.bin vmlinux.bin.gz uImage
+
+# uImage build relies on mkimage being availble on your host for ARC target
+# You will need to build u-boot for ARC, rename mkimage to arc-elf32-mkimage
+# and make sure it's reacable from your PATH
+MKIMAGE := $(srctree)/scripts/mkuboot.sh
+
+OBJCOPYFLAGS= -O binary -R .note -R .note.gnu.build-id -R .comment -S
+
+LINUX_START_TEXT = $$(readelf -h vmlinux | \
+ grep "Entry point address" | grep -o 0x.*)
+
+UIMAGE_LOADADDR = $(CONFIG_LINUX_LINK_BASE)
+UIMAGE_ENTRYADDR = $(LINUX_START_TEXT)
+UIMAGE_COMPRESSION = gzip
+
+$(obj)/vmlinux.bin: vmlinux FORCE
+ $(call if_changed,objcopy)
+
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,gzip)
+
+$(obj)/uImage: $(obj)/vmlinux.bin.gz FORCE
+ $(call if_changed,uimage)
+
+PHONY += FORCE
diff --git a/arch/arc/boot/dts/Makefile b/arch/arc/boot/dts/Makefile
new file mode 100644
index 000000000000..5776835d583f
--- /dev/null
+++ b/arch/arc/boot/dts/Makefile
@@ -0,0 +1,13 @@
+# Built-in dtb
+builtindtb-y := angel4
+
+ifneq ($(CONFIG_ARC_BUILTIN_DTB_NAME),"")
+ builtindtb-y := $(patsubst "%",%,$(CONFIG_ARC_BUILTIN_DTB_NAME))
+endif
+
+obj-y += $(builtindtb-y).dtb.o
+targets += $(builtindtb-y).dtb
+
+dtbs: $(addprefix $(obj)/, $(builtindtb-y).dtb)
+
+clean-files := *.dtb
diff --git a/arch/arc/boot/dts/angel4.dts b/arch/arc/boot/dts/angel4.dts
new file mode 100644
index 000000000000..bae4f936cb03
--- /dev/null
+++ b/arch/arc/boot/dts/angel4.dts
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+
+/ {
+ compatible = "snps,arc-angel4";
+ clock-frequency = <80000000>; /* 80 MHZ */
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&intc>;
+
+ chosen {
+ bootargs = "console=ttyARC0,115200n8";
+ };
+
+ aliases {
+ serial0 = &arcuart0;
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x00000000 0x10000000>; /* 256M */
+ };
+
+ fpga {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /* child and parent address space 1:1 mapped */
+ ranges;
+
+ intc: interrupt-controller {
+ compatible = "snps,arc700-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
+ arcuart0: serial@c0fc1000 {
+ compatible = "snps,arc-uart";
+ reg = <0xc0fc1000 0x100>;
+ interrupts = <5>;
+ clock-frequency = <80000000>;
+ current-speed = <115200>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arc/boot/dts/skeleton.dts b/arch/arc/boot/dts/skeleton.dts
new file mode 100644
index 000000000000..25a84fb5b3dc
--- /dev/null
+++ b/arch/arc/boot/dts/skeleton.dts
@@ -0,0 +1,10 @@
+/*
+ * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
diff --git a/arch/arc/boot/dts/skeleton.dtsi b/arch/arc/boot/dts/skeleton.dtsi
new file mode 100644
index 000000000000..a870bdd5e404
--- /dev/null
+++ b/arch/arc/boot/dts/skeleton.dtsi
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * Skeleton device tree; the bare minimum needed to boot; just include and
+ * add a compatible value.
+ */
+
+/ {
+ compatible = "snps,arc";
+ clock-frequency = <80000000>; /* 80 MHZ */
+ #address-cells = <1>;
+ #size-cells = <1>;
+ chosen { };
+ aliases { };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "snps,arc770d";
+ reg = <0>;
+ };
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x00000000 0x10000000>; /* 256M */
+ };
+};
diff --git a/arch/arc/configs/fpga_defconfig b/arch/arc/configs/fpga_defconfig
new file mode 100644
index 000000000000..b8698067ebbe
--- /dev/null
+++ b/arch/arc/configs/fpga_defconfig
@@ -0,0 +1,61 @@
+CONFIG_CROSS_COMPILE="arc-elf32-"
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_DEFAULT_HOSTNAME="ARCLinux"
+# CONFIG_SWAP is not set
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE="../arc_initramfs"
+CONFIG_KALLSYMS_ALL=y
+CONFIG_EMBEDDED=y
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_KPROBES=y
+CONFIG_MODULES=y
+# CONFIG_LBDAF is not set
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_ARC_PLAT_FPGA_LEGACY=y
+CONFIG_ARC_BOARD_ML509=y
+# CONFIG_ARC_HAS_RTSC is not set
+CONFIG_ARC_BUILTIN_DTB_NAME="angel4"
+# CONFIG_COMPACTION is not set
+# CONFIG_CROSS_MEMORY_ATTACH is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_UNIX_DIAG=y
+CONFIG_NET_KEY=y
+CONFIG_INET=y
+# CONFIG_IPV6 is not set
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+# CONFIG_BLK_DEV is not set
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_ARC=y
+CONFIG_SERIAL_ARC_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_VGA_CONSOLE is not set
+# CONFIG_HID is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_TMPFS=y
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_NFS_FS=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_XZ_DEC=y
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
new file mode 100644
index 000000000000..48af742f8b5a
--- /dev/null
+++ b/arch/arc/include/asm/Kbuild
@@ -0,0 +1,49 @@
+generic-y += auxvec.h
+generic-y += bugs.h
+generic-y += bitsperlong.h
+generic-y += clkdev.h
+generic-y += cputime.h
+generic-y += device.h
+generic-y += div64.h
+generic-y += emergency-restart.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += fb.h
+generic-y += ftrace.h
+generic-y += hardirq.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 += kmap_types.h
+generic-y += kvm_para.h
+generic-y += local.h
+generic-y += local64.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += parport.h
+generic-y += pci.h
+generic-y += percpu.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += scatterlist.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.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 += user.h
+generic-y += vga.h
+generic-y += xor.h
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
new file mode 100644
index 000000000000..1b907c465666
--- /dev/null
+++ b/arch/arc/include/asm/arcregs.h
@@ -0,0 +1,433 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _ASM_ARC_ARCREGS_H
+#define _ASM_ARC_ARCREGS_H
+
+#ifdef __KERNEL__
+
+/* Build Configuration Registers */
+#define ARC_REG_DCCMBASE_BCR 0x61 /* DCCM Base Addr */
+#define ARC_REG_CRC_BCR 0x62
+#define ARC_REG_DVFB_BCR 0x64
+#define ARC_REG_EXTARITH_BCR 0x65
+#define ARC_REG_VECBASE_BCR 0x68
+#define ARC_REG_PERIBASE_BCR 0x69
+#define ARC_REG_FP_BCR 0x6B /* Single-Precision FPU */
+#define ARC_REG_DPFP_BCR 0x6C /* Dbl Precision FPU */
+#define ARC_REG_MMU_BCR 0x6f
+#define ARC_REG_DCCM_BCR 0x74 /* DCCM Present + SZ */
+#define ARC_REG_TIMERS_BCR 0x75
+#define ARC_REG_ICCM_BCR 0x78
+#define ARC_REG_XY_MEM_BCR 0x79
+#define ARC_REG_MAC_BCR 0x7a
+#define ARC_REG_MUL_BCR 0x7b
+#define ARC_REG_SWAP_BCR 0x7c
+#define ARC_REG_NORM_BCR 0x7d
+#define ARC_REG_MIXMAX_BCR 0x7e
+#define ARC_REG_BARREL_BCR 0x7f
+#define ARC_REG_D_UNCACH_BCR 0x6A
+
+/* status32 Bits Positions */
+#define STATUS_H_BIT 0 /* CPU Halted */
+#define STATUS_E1_BIT 1 /* Int 1 enable */
+#define STATUS_E2_BIT 2 /* Int 2 enable */
+#define STATUS_A1_BIT 3 /* Int 1 active */
+#define STATUS_A2_BIT 4 /* Int 2 active */
+#define STATUS_AE_BIT 5 /* Exception active */
+#define STATUS_DE_BIT 6 /* PC is in delay slot */
+#define STATUS_U_BIT 7 /* User/Kernel mode */
+#define STATUS_L_BIT 12 /* Loop inhibit */
+
+/* These masks correspond to the status word(STATUS_32) bits */
+#define STATUS_H_MASK (1<<STATUS_H_BIT)
+#define STATUS_E1_MASK (1<<STATUS_E1_BIT)
+#define STATUS_E2_MASK (1<<STATUS_E2_BIT)
+#define STATUS_A1_MASK (1<<STATUS_A1_BIT)
+#define STATUS_A2_MASK (1<<STATUS_A2_BIT)
+#define STATUS_AE_MASK (1<<STATUS_AE_BIT)
+#define STATUS_DE_MASK (1<<STATUS_DE_BIT)
+#define STATUS_U_MASK (1<<STATUS_U_BIT)
+#define STATUS_L_MASK (1<<STATUS_L_BIT)
+
+/*
+ * ECR: Exception Cause Reg bits-n-pieces
+ * [23:16] = Exception Vector
+ * [15: 8] = Exception Cause Code
+ * [ 7: 0] = Exception Parameters (for certain types only)
+ */
+#define ECR_VEC_MASK 0xff0000
+#define ECR_CODE_MASK 0x00ff00
+#define ECR_PARAM_MASK 0x0000ff
+
+/* Exception Cause Vector Values */
+#define ECR_V_INSN_ERR 0x02
+#define ECR_V_MACH_CHK 0x20
+#define ECR_V_ITLB_MISS 0x21
+#define ECR_V_DTLB_MISS 0x22
+#define ECR_V_PROTV 0x23
+
+/* Protection Violation Exception Cause Code Values */
+#define ECR_C_PROTV_INST_FETCH 0x00
+#define ECR_C_PROTV_LOAD 0x01
+#define ECR_C_PROTV_STORE 0x02
+#define ECR_C_PROTV_XCHG 0x03
+#define ECR_C_PROTV_MISALIG_DATA 0x04
+
+/* DTLB Miss Exception Cause Code Values */
+#define ECR_C_BIT_DTLB_LD_MISS 8
+#define ECR_C_BIT_DTLB_ST_MISS 9
+
+
+/* Auxiliary registers */
+#define AUX_IDENTITY 4
+#define AUX_INTR_VEC_BASE 0x25
+#define AUX_IRQ_LEV 0x200 /* IRQ Priority: L1 or L2 */
+#define AUX_IRQ_HINT 0x201 /* For generating Soft Interrupts */
+#define AUX_IRQ_LV12 0x43 /* interrupt level register */
+
+#define AUX_IENABLE 0x40c
+#define AUX_ITRIGGER 0x40d
+#define AUX_IPULSE 0x415
+
+/* Timer related Aux registers */
+#define ARC_REG_TIMER0_LIMIT 0x23 /* timer 0 limit */
+#define ARC_REG_TIMER0_CTRL 0x22 /* timer 0 control */
+#define ARC_REG_TIMER0_CNT 0x21 /* timer 0 count */
+#define ARC_REG_TIMER1_LIMIT 0x102 /* timer 1 limit */
+#define ARC_REG_TIMER1_CTRL 0x101 /* timer 1 control */
+#define ARC_REG_TIMER1_CNT 0x100 /* timer 1 count */
+
+#define TIMER_CTRL_IE (1 << 0) /* Interupt when Count reachs limit */
+#define TIMER_CTRL_NH (1 << 1) /* Count only when CPU NOT halted */
+
+/* MMU Management regs */
+#define ARC_REG_TLBPD0 0x405
+#define ARC_REG_TLBPD1 0x406
+#define ARC_REG_TLBINDEX 0x407
+#define ARC_REG_TLBCOMMAND 0x408
+#define ARC_REG_PID 0x409
+#define ARC_REG_SCRATCH_DATA0 0x418
+
+/* Bits in MMU PID register */
+#define MMU_ENABLE (1 << 31) /* Enable MMU for process */
+
+/* Error code if probe fails */
+#define TLB_LKUP_ERR 0x80000000
+
+/* TLB Commands */
+#define TLBWrite 0x1
+#define TLBRead 0x2
+#define TLBGetIndex 0x3
+#define TLBProbe 0x4
+
+#if (CONFIG_ARC_MMU_VER >= 2)
+#define TLBWriteNI 0x5 /* write JTLB without inv uTLBs */
+#define TLBIVUTLB 0x6 /* explicitly inv uTLBs */
+#else
+#undef TLBWriteNI /* These cmds don't exist on older MMU */
+#undef TLBIVUTLB
+#endif
+
+/* Instruction cache related Auxiliary registers */
+#define ARC_REG_IC_BCR 0x77 /* Build Config reg */
+#define ARC_REG_IC_IVIC 0x10
+#define ARC_REG_IC_CTRL 0x11
+#define ARC_REG_IC_IVIL 0x19
+#if (CONFIG_ARC_MMU_VER > 2)
+#define ARC_REG_IC_PTAG 0x1E
+#endif
+
+/* Bit val in IC_CTRL */
+#define IC_CTRL_CACHE_DISABLE 0x1
+
+/* Data cache related Auxiliary registers */
+#define ARC_REG_DC_BCR 0x72
+#define ARC_REG_DC_IVDC 0x47
+#define ARC_REG_DC_CTRL 0x48
+#define ARC_REG_DC_IVDL 0x4A
+#define ARC_REG_DC_FLSH 0x4B
+#define ARC_REG_DC_FLDL 0x4C
+#if (CONFIG_ARC_MMU_VER > 2)
+#define ARC_REG_DC_PTAG 0x5C
+#endif
+
+/* Bit val in DC_CTRL */
+#define DC_CTRL_INV_MODE_FLUSH 0x40
+#define DC_CTRL_FLUSH_STATUS 0x100
+
+/* MMU Management regs */
+#define ARC_REG_PID 0x409
+#define ARC_REG_SCRATCH_DATA0 0x418
+
+/* Bits in MMU PID register */
+#define MMU_ENABLE (1 << 31) /* Enable MMU for process */
+
+/*
+ * Floating Pt Registers
+ * Status regs are read-only (build-time) so need not be saved/restored
+ */
+#define ARC_AUX_FP_STAT 0x300
+#define ARC_AUX_DPFP_1L 0x301
+#define ARC_AUX_DPFP_1H 0x302
+#define ARC_AUX_DPFP_2L 0x303
+#define ARC_AUX_DPFP_2H 0x304
+#define ARC_AUX_DPFP_STAT 0x305
+
+#ifndef __ASSEMBLY__
+
+/*
+ ******************************************************************
+ * Inline ASM macros to read/write AUX Regs
+ * Essentially invocation of lr/sr insns from "C"
+ */
+
+#if 1
+
+#define read_aux_reg(reg) __builtin_arc_lr(reg)
+
+/* gcc builtin sr needs reg param to be long immediate */
+#define write_aux_reg(reg_immed, val) \
+ __builtin_arc_sr((unsigned int)val, reg_immed)
+
+#else
+
+#define read_aux_reg(reg) \
+({ \
+ unsigned int __ret; \
+ __asm__ __volatile__( \
+ " lr %0, [%1]" \
+ : "=r"(__ret) \
+ : "i"(reg)); \
+ __ret; \
+})
+
+/*
+ * Aux Reg address is specified as long immediate by caller
+ * e.g.
+ * write_aux_reg(0x69, some_val);
+ * This generates tightest code.
+ */
+#define write_aux_reg(reg_imm, val) \
+({ \
+ __asm__ __volatile__( \
+ " sr %0, [%1] \n" \
+ : \
+ : "ir"(val), "i"(reg_imm)); \
+})
+
+/*
+ * Aux Reg address is specified in a variable
+ * * e.g.
+ * reg_num = 0x69
+ * write_aux_reg2(reg_num, some_val);
+ * This has to generate glue code to load the reg num from
+ * memory to a reg hence not recommended.
+ */
+#define write_aux_reg2(reg_in_var, val) \
+({ \
+ unsigned int tmp; \
+ \
+ __asm__ __volatile__( \
+ " ld %0, [%2] \n\t" \
+ " sr %1, [%0] \n\t" \
+ : "=&r"(tmp) \
+ : "r"(val), "memory"(&reg_in_var)); \
+})
+
+#endif
+
+#define READ_BCR(reg, into) \
+{ \
+ unsigned int tmp; \
+ tmp = read_aux_reg(reg); \
+ if (sizeof(tmp) == sizeof(into)) { \
+ into = *((typeof(into) *)&tmp); \
+ } else { \
+ extern void bogus_undefined(void); \
+ bogus_undefined(); \
+ } \
+}
+
+#define WRITE_BCR(reg, into) \
+{ \
+ unsigned int tmp; \
+ if (sizeof(tmp) == sizeof(into)) { \
+ tmp = (*(unsigned int *)(into)); \
+ write_aux_reg(reg, tmp); \
+ } else { \
+ extern void bogus_undefined(void); \
+ bogus_undefined(); \
+ } \
+}
+
+/* Helpers */
+#define TO_KB(bytes) ((bytes) >> 10)
+#define TO_MB(bytes) (TO_KB(bytes) >> 10)
+#define PAGES_TO_KB(n_pages) ((n_pages) << (PAGE_SHIFT - 10))
+#define PAGES_TO_MB(n_pages) (PAGES_TO_KB(n_pages) >> 10)
+
+#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
+/* These DPFP regs need to be saved/restored across ctx-sw */
+struct arc_fpu {
+ struct {
+ unsigned int l, h;
+ } aux_dpfp[2];
+};
+#endif
+
+/*
+ ***************************************************************
+ * Build Configuration Registers, with encoded hardware config
+ */
+struct bcr_identity {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int chip_id:16, cpu_id:8, family:8;
+#else
+ unsigned int family:8, cpu_id:8, chip_id:16;
+#endif
+};
+
+struct bcr_mmu_1_2 {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int ver:8, ways:4, sets:4, u_itlb:8, u_dtlb:8;
+#else
+ unsigned int u_dtlb:8, u_itlb:8, sets:4, ways:4, ver:8;
+#endif
+};
+
+struct bcr_mmu_3 {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int ver:8, ways:4, sets:4, osm:1, reserv:3, pg_sz:4,
+ u_itlb:4, u_dtlb:4;
+#else
+ unsigned int u_dtlb:4, u_itlb:4, pg_sz:4, reserv:3, osm:1, sets:4,
+ ways:4, ver:8;
+#endif
+};
+
+#define EXTN_SWAP_VALID 0x1
+#define EXTN_NORM_VALID 0x2
+#define EXTN_MINMAX_VALID 0x2
+#define EXTN_BARREL_VALID 0x2
+
+struct bcr_extn {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int pad:20, crc:1, ext_arith:2, mul:2, barrel:2, minmax:2,
+ norm:2, swap:1;
+#else
+ unsigned int swap:1, norm:2, minmax:2, barrel:2, mul:2, ext_arith:2,
+ crc:1, pad:20;
+#endif
+};
+
+/* DSP Options Ref Manual */
+struct bcr_extn_mac_mul {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int pad:16, type:8, ver:8;
+#else
+ unsigned int ver:8, type:8, pad:16;
+#endif
+};
+
+struct bcr_extn_xymem {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int ram_org:2, num_banks:4, bank_sz:4, ver:8;
+#else
+ unsigned int ver:8, bank_sz:4, num_banks:4, ram_org:2;
+#endif
+};
+
+struct bcr_cache {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int pad:12, line_len:4, sz:4, config:4, ver:8;
+#else
+ unsigned int ver:8, config:4, sz:4, line_len:4, pad:12;
+#endif
+};
+
+struct bcr_perip {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int start:8, pad2:8, sz:8, pad:8;
+#else
+ unsigned int pad:8, sz:8, pad2:8, start:8;
+#endif
+};
+struct bcr_iccm {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int base:16, pad:5, sz:3, ver:8;
+#else
+ unsigned int ver:8, sz:3, pad:5, base:16;
+#endif
+};
+
+/* DCCM Base Address Register: ARC_REG_DCCMBASE_BCR */
+struct bcr_dccm_base {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int addr:24, ver:8;
+#else
+ unsigned int ver:8, addr:24;
+#endif
+};
+
+/* DCCM RAM Configuration Register: ARC_REG_DCCM_BCR */
+struct bcr_dccm {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int res:21, sz:3, ver:8;
+#else
+ unsigned int ver:8, sz:3, res:21;
+#endif
+};
+
+/* Both SP and DP FPU BCRs have same format */
+struct bcr_fp {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ unsigned int fast:1, ver:8;
+#else
+ unsigned int ver:8, fast:1;
+#endif
+};
+
+/*
+ *******************************************************************
+ * Generic structures to hold build configuration used at runtime
+ */
+
+struct cpuinfo_arc_mmu {
+ unsigned int ver, pg_sz, sets, ways, u_dtlb, u_itlb, num_tlb;
+};
+
+struct cpuinfo_arc_cache {
+ unsigned int has_aliasing, sz, line_len, assoc, ver;
+};
+
+struct cpuinfo_arc_ccm {
+ unsigned int base_addr, sz;
+};
+
+struct cpuinfo_arc {
+ struct cpuinfo_arc_cache icache, dcache;
+ struct cpuinfo_arc_mmu mmu;
+ struct bcr_identity core;
+ unsigned int timers;
+ unsigned int vec_base;
+ unsigned int uncached_base;
+ struct cpuinfo_arc_ccm iccm, dccm;
+ struct bcr_extn extn;
+ struct bcr_extn_xymem extn_xymem;
+ struct bcr_extn_mac_mul extn_mac_mul;
+ struct bcr_fp fp, dpfp;
+};
+
+extern struct cpuinfo_arc cpuinfo_arc700[];
+
+#endif /* __ASEMBLY__ */
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_ARC_ARCREGS_H */
diff --git a/arch/arc/include/asm/asm-offsets.h b/arch/arc/include/asm/asm-offsets.h
new file mode 100644
index 000000000000..dad18768fe43
--- /dev/null
+++ b/arch/arc/include/asm/asm-offsets.h
@@ -0,0 +1,9 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <generated/asm-offsets.h>
diff --git a/arch/arc/include/asm/atomic.h b/arch/arc/include/asm/atomic.h
new file mode 100644
index 000000000000..83f03ca6caf6
--- /dev/null
+++ b/arch/arc/include/asm/atomic.h
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _ASM_ARC_ATOMIC_H
+#define _ASM_ARC_ATOMIC_H
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+#include <asm/cmpxchg.h>
+#include <asm/barrier.h>
+#include <asm/smp.h>
+
+#define atomic_read(v) ((v)->counter)
+
+#ifdef CONFIG_ARC_HAS_LLSC
+
+#define atomic_set(v, i) (((v)->counter) = (i))
+
+static inline void atomic_add(int i, atomic_t *v)
+{
+ unsigned int temp;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%1] \n"
+ " add %0, %0, %2 \n"
+ " scond %0, [%1] \n"
+ " bnz 1b \n"
+ : "=&r"(temp) /* Early clobber, to prevent reg reuse */
+ : "r"(&v->counter), "ir"(i)
+ : "cc");
+}
+
+static inline void atomic_sub(int i, atomic_t *v)
+{
+ unsigned int temp;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%1] \n"
+ " sub %0, %0, %2 \n"
+ " scond %0, [%1] \n"
+ " bnz 1b \n"
+ : "=&r"(temp)
+ : "r"(&v->counter), "ir"(i)
+ : "cc");
+}
+
+/* add and also return the new value */
+static inline int atomic_add_return(int i, atomic_t *v)
+{
+ unsigned int temp;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%1] \n"
+ " add %0, %0, %2 \n"
+ " scond %0, [%1] \n"
+ " bnz 1b \n"
+ : "=&r"(temp)
+ : "r"(&v->counter), "ir"(i)
+ : "cc");
+
+ return temp;
+}
+
+static inline int atomic_sub_return(int i, atomic_t *v)
+{
+ unsigned int temp;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%1] \n"
+ " sub %0, %0, %2 \n"
+ " scond %0, [%1] \n"
+ " bnz 1b \n"
+ : "=&r"(temp)
+ : "r"(&v->counter), "ir"(i)
+ : "cc");
+
+ return temp;
+}
+
+static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
+{
+ unsigned int temp;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%1] \n"
+ " bic %0, %0, %2 \n"
+ " scond %0, [%1] \n"
+ " bnz 1b \n"
+ : "=&r"(temp)
+ : "r"(addr), "ir"(mask)
+ : "cc");
+}
+
+#else /* !CONFIG_ARC_HAS_LLSC */
+
+#ifndef CONFIG_SMP
+
+ /* violating atomic_xxx API locking protocol in UP for optimization sake */
+#define atomic_set(v, i) (((v)->counter) = (i))
+
+#else
+
+static inline void atomic_set(atomic_t *v, int i)
+{
+ /*
+ * Independent of hardware support, all of the atomic_xxx() APIs need
+ * to follow the same locking rules to make sure that a "hardware"
+ * atomic insn (e.g. LD) doesn't clobber an "emulated" atomic insn
+ * sequence
+ *
+ * Thus atomic_set() despite being 1 insn (and seemingly atomic)
+ * requires the locking.
+ */
+ unsigned long flags;
+
+ atomic_ops_lock(flags);
+ v->counter = i;
+ atomic_ops_unlock(flags);
+}
+#endif
+
+/*
+ * Non hardware assisted Atomic-R-M-W
+ * Locking would change to irq-disabling only (UP) and spinlocks (SMP)
+ */
+
+static inline void atomic_add(int i, atomic_t *v)
+{
+ unsigned long flags;
+
+ atomic_ops_lock(flags);
+ v->counter += i;
+ atomic_ops_unlock(flags);
+}
+
+static inline void atomic_sub(int i, atomic_t *v)
+{
+ unsigned long flags;
+
+ atomic_ops_lock(flags);
+ v->counter -= i;
+ atomic_ops_unlock(flags);
+}
+
+static inline int atomic_add_return(int i, atomic_t *v)
+{
+ unsigned long flags;
+ unsigned long temp;
+
+ atomic_ops_lock(flags);
+ temp = v->counter;
+ temp += i;
+ v->counter = temp;
+ atomic_ops_unlock(flags);
+
+ return temp;
+}
+
+static inline int atomic_sub_return(int i, atomic_t *v)
+{
+ unsigned long flags;
+ unsigned long temp;
+
+ atomic_ops_lock(flags);
+ temp = v->counter;
+ temp -= i;
+ v->counter = temp;
+ atomic_ops_unlock(flags);
+
+ return temp;
+}
+
+static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
+{
+ unsigned long flags;
+
+ atomic_ops_lock(flags);
+ *addr &= ~mask;
+ atomic_ops_unlock(flags);
+}
+
+#endif /* !CONFIG_ARC_HAS_LLSC */
+
+/**
+ * __atomic_add_unless - add unless the number is 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 it was not @u.
+ * Returns the old value of @v
+ */
+#define __atomic_add_unless(v, a, u) \
+({ \
+ int c, old; \
+ c = atomic_read(v); \
+ while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c)\
+ c = old; \
+ c; \
+})
+
+#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+
+#define atomic_inc(v) atomic_add(1, v)
+#define atomic_dec(v) atomic_sub(1, v)
+
+#define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0)
+#define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0)
+#define atomic_inc_return(v) atomic_add_return(1, (v))
+#define atomic_dec_return(v) atomic_sub_return(1, (v))
+#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
+
+#define atomic_add_negative(i, v) (atomic_add_return(i, v) < 0)
+
+#define ATOMIC_INIT(i) { (i) }
+
+#include <asm-generic/atomic64.h>
+
+#endif
+
+#endif
+
+#endif
diff --git a/arch/arc/include/asm/barrier.h b/arch/arc/include/asm/barrier.h
new file mode 100644
index 000000000000..f6cb7c4ffb35
--- /dev/null
+++ b/arch/arc/include/asm/barrier.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_BARRIER_H
+#define __ASM_BARRIER_H
+
+#ifndef __ASSEMBLY__
+
+/* TODO-vineetg: Need to see what this does, don't we need sync anywhere */
+#define mb() __asm__ __volatile__ ("" : : : "memory")
+#define rmb() mb()
+#define wmb() mb()
+#define set_mb(var, value) do { var = value; mb(); } while (0)
+#define set_wmb(var, value) do { var = value; wmb(); } while (0)
+#define read_barrier_depends() mb()
+
+/* TODO-vineetg verify the correctness of macros here */
+#ifdef CONFIG_SMP
+#define smp_mb() mb()
+#define smp_rmb() rmb()
+#define smp_wmb() wmb()
+#else
+#define smp_mb() barrier()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
+#endif
+
+#define smp_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()
+
+#define smp_read_barrier_depends() do { } while (0)
+
+#endif
+
+#endif
diff --git a/arch/arc/include/asm/bitops.h b/arch/arc/include/asm/bitops.h
new file mode 100644
index 000000000000..647a83a8e756
--- /dev/null
+++ b/arch/arc/include/asm/bitops.h
@@ -0,0 +1,516 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _ASM_BITOPS_H
+#define _ASM_BITOPS_H
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+
+/*
+ * Hardware assisted read-modify-write using ARC700 LLOCK/SCOND insns.
+ * The Kconfig glue ensures that in SMP, this is only set if the container
+ * SoC/platform has cross-core coherent LLOCK/SCOND
+ */
+#if defined(CONFIG_ARC_HAS_LLSC)
+
+static inline void set_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned int temp;
+
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%1] \n"
+ " bset %0, %0, %2 \n"
+ " scond %0, [%1] \n"
+ " bnz 1b \n"
+ : "=&r"(temp)
+ : "r"(m), "ir"(nr)
+ : "cc");
+}
+
+static inline void clear_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned int temp;
+
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%1] \n"
+ " bclr %0, %0, %2 \n"
+ " scond %0, [%1] \n"
+ " bnz 1b \n"
+ : "=&r"(temp)
+ : "r"(m), "ir"(nr)
+ : "cc");
+}
+
+static inline void change_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned int temp;
+
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%1] \n"
+ " bxor %0, %0, %2 \n"
+ " scond %0, [%1] \n"
+ " bnz 1b \n"
+ : "=&r"(temp)
+ : "r"(m), "ir"(nr)
+ : "cc");
+}
+
+/*
+ * Semantically:
+ * Test the bit
+ * if clear
+ * set it and return 0 (old value)
+ * else
+ * return 1 (old value).
+ *
+ * Since ARC lacks a equivalent h/w primitive, the bit is set unconditionally
+ * and the old value of bit is returned
+ */
+static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long old, temp;
+
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%2] \n"
+ " bset %1, %0, %3 \n"
+ " scond %1, [%2] \n"
+ " bnz 1b \n"
+ : "=&r"(old), "=&r"(temp)
+ : "r"(m), "ir"(nr)
+ : "cc");
+
+ return (old & (1 << nr)) != 0;
+}
+
+static inline int
+test_and_clear_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned int old, temp;
+
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%2] \n"
+ " bclr %1, %0, %3 \n"
+ " scond %1, [%2] \n"
+ " bnz 1b \n"
+ : "=&r"(old), "=&r"(temp)
+ : "r"(m), "ir"(nr)
+ : "cc");
+
+ return (old & (1 << nr)) != 0;
+}
+
+static inline int
+test_and_change_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned int old, temp;
+
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%2] \n"
+ " bxor %1, %0, %3 \n"
+ " scond %1, [%2] \n"
+ " bnz 1b \n"
+ : "=&r"(old), "=&r"(temp)
+ : "r"(m), "ir"(nr)
+ : "cc");
+
+ return (old & (1 << nr)) != 0;
+}
+
+#else /* !CONFIG_ARC_HAS_LLSC */
+
+#include <asm/smp.h>
+
+/*
+ * Non hardware assisted Atomic-R-M-W
+ * Locking would change to irq-disabling only (UP) and spinlocks (SMP)
+ *
+ * There's "significant" micro-optimization in writing our own variants of
+ * bitops (over generic variants)
+ *
+ * (1) The generic APIs have "signed" @nr while we have it "unsigned"
+ * This avoids extra code to be generated for pointer arithmatic, since
+ * is "not sure" that index is NOT -ve
+ * (2) Utilize the fact that ARCompact bit fidding insn (BSET/BCLR/ASL) etc
+ * only consider bottom 5 bits of @nr, so NO need to mask them off.
+ * (GCC Quirk: however for constant @nr we still need to do the masking
+ * at compile time)
+ */
+
+static inline void set_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long temp, flags;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ bitops_lock(flags);
+
+ temp = *m;
+ *m = temp | (1UL << nr);
+
+ bitops_unlock(flags);
+}
+
+static inline void clear_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long temp, flags;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ bitops_lock(flags);
+
+ temp = *m;
+ *m = temp & ~(1UL << nr);
+
+ bitops_unlock(flags);
+}
+
+static inline void change_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long temp, flags;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ bitops_lock(flags);
+
+ temp = *m;
+ *m = temp ^ (1UL << nr);
+
+ bitops_unlock(flags);
+}
+
+static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long old, flags;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ bitops_lock(flags);
+
+ old = *m;
+ *m = old | (1 << nr);
+
+ bitops_unlock(flags);
+
+ return (old & (1 << nr)) != 0;
+}
+
+static inline int
+test_and_clear_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long old, flags;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ bitops_lock(flags);
+
+ old = *m;
+ *m = old & ~(1 << nr);
+
+ bitops_unlock(flags);
+
+ return (old & (1 << nr)) != 0;
+}
+
+static inline int
+test_and_change_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long old, flags;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ bitops_lock(flags);
+
+ old = *m;
+ *m = old ^ (1 << nr);
+
+ bitops_unlock(flags);
+
+ return (old & (1 << nr)) != 0;
+}
+
+#endif /* CONFIG_ARC_HAS_LLSC */
+
+/***************************************
+ * Non atomic variants
+ **************************************/
+
+static inline void __set_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long temp;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ temp = *m;
+ *m = temp | (1UL << nr);
+}
+
+static inline void __clear_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long temp;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ temp = *m;
+ *m = temp & ~(1UL << nr);
+}
+
+static inline void __change_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long temp;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ temp = *m;
+ *m = temp ^ (1UL << nr);
+}
+
+static inline int
+__test_and_set_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long old;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ old = *m;
+ *m = old | (1 << nr);
+
+ return (old & (1 << nr)) != 0;
+}
+
+static inline int
+__test_and_clear_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long old;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ old = *m;
+ *m = old & ~(1 << nr);
+
+ return (old & (1 << nr)) != 0;
+}
+
+static inline int
+__test_and_change_bit(unsigned long nr, volatile unsigned long *m)
+{
+ unsigned long old;
+ m += nr >> 5;
+
+ if (__builtin_constant_p(nr))
+ nr &= 0x1f;
+
+ old = *m;
+ *m = old ^ (1 << nr);
+
+ return (old & (1 << nr)) != 0;
+}
+
+/*
+ * This routine doesn't need to be atomic.
+ */
+static inline int
+__constant_test_bit(unsigned int nr, const volatile unsigned long *addr)
+{
+ return ((1UL << (nr & 31)) &
+ (((const volatile unsigned int *)addr)[nr >> 5])) != 0;
+}
+
+static inline int
+__test_bit(unsigned int nr, const volatile unsigned long *addr)
+{
+ unsigned long mask;
+
+ addr += nr >> 5;
+
+ /* ARC700 only considers 5 bits in bit-fiddling insn */
+ mask = 1 << nr;
+
+ return ((mask & *addr) != 0);
+}
+
+#define test_bit(nr, addr) (__builtin_constant_p(nr) ? \
+ __constant_test_bit((nr), (addr)) : \
+ __test_bit((nr), (addr)))
+
+/*
+ * Count the number of zeros, starting from MSB
+ * Helper for fls( ) friends
+ * This is a pure count, so (1-32) or (0-31) doesn't apply
+ * It could be 0 to 32, based on num of 0's in there
+ * clz(0x8000_0000) = 0, clz(0xFFFF_FFFF)=0, clz(0) = 32, clz(1) = 31
+ */
+static inline __attribute__ ((const)) int clz(unsigned int x)
+{
+ unsigned int res;
+
+ __asm__ __volatile__(
+ " norm.f %0, %1 \n"
+ " mov.n %0, 0 \n"
+ " add.p %0, %0, 1 \n"
+ : "=r"(res)
+ : "r"(x)
+ : "cc");
+
+ return res;
+}
+
+static inline int constant_fls(int x)
+{
+ int r = 32;
+
+ if (!x)
+ return 0;
+ if (!(x & 0xffff0000u)) {
+ x <<= 16;
+ r -= 16;
+ }
+ if (!(x & 0xff000000u)) {
+ x <<= 8;
+ r -= 8;
+ }
+ if (!(x & 0xf0000000u)) {
+ x <<= 4;
+ r -= 4;
+ }
+ if (!(x & 0xc0000000u)) {
+ x <<= 2;
+ r -= 2;
+ }
+ if (!(x & 0x80000000u)) {
+ x <<= 1;
+ r -= 1;
+ }
+ return r;
+}
+
+/*
+ * fls = Find Last Set in word
+ * @result: [1-32]
+ * fls(1) = 1, fls(0x80000000) = 32, fls(0) = 0
+ */
+static inline __attribute__ ((const)) int fls(unsigned long x)
+{
+ if (__builtin_constant_p(x))
+ return constant_fls(x);
+
+ return 32 - clz(x);
+}
+
+/*
+ * __fls: Similar to fls, but zero based (0-31)
+ */
+static inline __attribute__ ((const)) int __fls(unsigned long x)
+{
+ if (!x)
+ return 0;
+ else
+ return fls(x) - 1;
+}
+
+/*
+ * ffs = Find First Set in word (LSB to MSB)
+ * @result: [1-32], 0 if all 0's
+ */
+#define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); })
+
+/*
+ * __ffs: Similar to ffs, but zero based (0-31)
+ */
+static inline __attribute__ ((const)) int __ffs(unsigned long word)
+{
+ if (!word)
+ return word;
+
+ return ffs(word) - 1;
+}
+
+/*
+ * ffz = Find First Zero in word.
+ * @return:[0-31], 32 if all 1's
+ */
+#define ffz(x) __ffs(~(x))
+
+/* TODO does this affect uni-processor code */
+#define smp_mb__before_clear_bit() barrier()
+#define smp_mb__after_clear_bit() barrier()
+
+#include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/fls64.h>
+#include <asm-generic/bitops/sched.h>
+#include <asm-generic/bitops/lock.h>
+
+#include <asm-generic/bitops/find.h>
+#include <asm-generic/bitops/le.h>
+#include <asm-generic/bitops/ext2-atomic-setbit.h>
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __KERNEL__ */
+
+#endif
diff --git a/arch/arc/include/asm/bug.h b/arch/arc/include/asm/bug.h
new file mode 100644
index 000000000000..2ad8f9b1c54b
--- /dev/null
+++ b/arch/arc/include/asm/bug.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _ASM_ARC_BUG_H
+#define _ASM_ARC_BUG_H
+
+#ifndef __ASSEMBLY__
+
+#include <asm/ptrace.h>
+
+struct task_struct;
+
+void show_regs(struct pt_regs *regs);
+void show_stacktrace(struct task_struct *tsk, struct pt_regs *regs);
+void show_kernel_fault_diag(const char *str, struct pt_regs *regs,
+ unsigned long address, unsigned long cause_reg);
+void die(const char *str, struct pt_regs *regs, unsigned long address,
+ unsigned long cause_reg);
+
+#define BUG() do { \
+ dump_stack(); \
+ pr_warn("Kernel BUG in %s: %s: %d!\n", \
+ __FILE__, __func__, __LINE__); \
+} while (0)
+
+#define HAVE_ARCH_BUG
+
+#include <asm-generic/bug.h>
+
+#endif /* !__ASSEMBLY__ */
+
+#endif
diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h
new file mode 100644
index 000000000000..6632273861fd
--- /dev/null
+++ b/arch/arc/include/asm/cache.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ARC_ASM_CACHE_H
+#define __ARC_ASM_CACHE_H
+
+/* In case $$ not config, setup a dummy number for rest of kernel */
+#ifndef CONFIG_ARC_CACHE_LINE_SHIFT
+#define L1_CACHE_SHIFT 6
+#else
+#define L1_CACHE_SHIFT CONFIG_ARC_CACHE_LINE_SHIFT
+#endif
+
+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+#define ARC_ICACHE_WAYS 2
+#define ARC_DCACHE_WAYS 4
+
+/* Helpers */
+#define ARC_ICACHE_LINE_LEN L1_CACHE_BYTES
+#define ARC_DCACHE_LINE_LEN L1_CACHE_BYTES
+
+#define ICACHE_LINE_MASK (~(ARC_ICACHE_LINE_LEN - 1))
+#define DCACHE_LINE_MASK (~(ARC_DCACHE_LINE_LEN - 1))
+
+#if ARC_ICACHE_LINE_LEN != ARC_DCACHE_LINE_LEN
+#error "Need to fix some code as I/D cache lines not same"
+#else
+#define is_not_cache_aligned(p) ((unsigned long)p & (~DCACHE_LINE_MASK))
+#endif
+
+#ifndef __ASSEMBLY__
+
+/* Uncached access macros */
+#define arc_read_uncached_32(ptr) \
+({ \
+ unsigned int __ret; \
+ __asm__ __volatile__( \
+ " ld.di %0, [%1] \n" \
+ : "=r"(__ret) \
+ : "r"(ptr)); \
+ __ret; \
+})
+
+#define arc_write_uncached_32(ptr, data)\
+({ \
+ __asm__ __volatile__( \
+ " st.di %0, [%1] \n" \
+ : \
+ : "r"(data), "r"(ptr)); \
+})
+
+/* used to give SHMLBA a value to avoid Cache Aliasing */
+extern unsigned int ARC_shmlba;
+
+#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
+
+/*
+ * ARC700 doesn't cache any access in top 256M.
+ * Ideal for wiring memory mapped peripherals as we don't need to do
+ * explicit uncached accesses (LD.di/ST.di) hence more portable drivers
+ */
+#define ARC_UNCACHED_ADDR_SPACE 0xc0000000
+
+extern void arc_cache_init(void);
+extern char *arc_cache_mumbojumbo(int cpu_id, char *buf, int len);
+extern void __init read_decode_cache_bcr(void);
+#endif
+
+#endif /* _ASM_CACHE_H */
diff --git a/arch/arc/include/asm/cacheflush.h b/arch/arc/include/asm/cacheflush.h
new file mode 100644
index 000000000000..97ee96f26505
--- /dev/null
+++ b/arch/arc/include/asm/cacheflush.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * vineetg: May 2011: for Non-aliasing VIPT D-cache following can be NOPs
+ * -flush_cache_dup_mm (fork)
+ * -likewise for flush_cache_mm (exit/execve)
+ * -likewise for flush_cache_{range,page} (munmap, exit, COW-break)
+ *
+ * vineetg: April 2008
+ * -Added a critical CacheLine flush to copy_to_user_page( ) which
+ * was causing gdbserver to not setup breakpoints consistently
+ */
+
+#ifndef _ASM_CACHEFLUSH_H
+#define _ASM_CACHEFLUSH_H
+
+#include <linux/mm.h>
+
+void flush_cache_all(void);
+
+void flush_icache_range(unsigned long start, unsigned long end);
+void flush_icache_page(struct vm_area_struct *vma, struct page *page);
+void flush_icache_range_vaddr(unsigned long paddr, unsigned long u_vaddr,
+ int len);
+
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
+
+void flush_dcache_page(struct page *page);
+
+void dma_cache_wback_inv(unsigned long start, unsigned long sz);
+void dma_cache_inv(unsigned long start, unsigned long sz);
+void dma_cache_wback(unsigned long start, unsigned long sz);
+
+#define flush_dcache_mmap_lock(mapping) do { } while (0)
+#define flush_dcache_mmap_unlock(mapping) do { } while (0)
+
+/* TBD: optimize this */
+#define flush_cache_vmap(start, end) flush_cache_all()
+#define flush_cache_vunmap(start, end) flush_cache_all()
+
+/*
+ * VM callbacks when entire/range of user-space V-P mappings are
+ * torn-down/get-invalidated
+ *
+ * Currently we don't support D$ aliasing configs for our VIPT caches
+ * NOPS for VIPT Cache with non-aliasing D$ configurations only
+ */
+#define flush_cache_dup_mm(mm) /* called on fork */
+#define flush_cache_mm(mm) /* called on munmap/exit */
+#define flush_cache_range(mm, u_vstart, u_vend)
+#define flush_cache_page(vma, u_vaddr, pfn) /* PF handling/COW-break */
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+do { \
+ memcpy(dst, src, len); \
+ if (vma->vm_flags & VM_EXEC) \
+ flush_icache_range_vaddr((unsigned long)(dst), vaddr, len);\
+} while (0)
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+ memcpy(dst, src, len); \
+
+#endif
diff --git a/arch/arc/include/asm/checksum.h b/arch/arc/include/asm/checksum.h
new file mode 100644
index 000000000000..10957298b7a3
--- /dev/null
+++ b/arch/arc/include/asm/checksum.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Joern Rennecke <joern.rennecke@embecosm.com>: Jan 2012
+ * -Insn Scheduling improvements to csum core routines.
+ * = csum_fold( ) largely derived from ARM version.
+ * = ip_fast_cum( ) to have module scheduling
+ * -gcc 4.4.x broke networking. Alias analysis needed to be primed.
+ * worked around by adding memory clobber to ip_fast_csum( )
+ *
+ * vineetg: May 2010
+ * -Rewrote ip_fast_cscum( ) and csum_fold( ) with fast inline asm
+ */
+
+#ifndef _ASM_ARC_CHECKSUM_H
+#define _ASM_ARC_CHECKSUM_H
+
+/*
+ * Fold a partial checksum
+ *
+ * The 2 swords comprising the 32bit sum are added, any carry to 16th bit
+ * added back and final sword result inverted.
+ */
+static inline __sum16 csum_fold(__wsum s)
+{
+ unsigned r = s << 16 | s >> 16; /* ror */
+ s = ~s;
+ s -= r;
+ return s >> 16;
+}
+
+/*
+ * This is a version of ip_compute_csum() optimized for IP headers,
+ * which always checksum on 4 octet boundaries.
+ */
+static inline __sum16
+ip_fast_csum(const void *iph, unsigned int ihl)
+{
+ const void *ptr = iph;
+ unsigned int tmp, tmp2, sum;
+
+ __asm__(
+ " ld.ab %0, [%3, 4] \n"
+ " ld.ab %2, [%3, 4] \n"
+ " sub %1, %4, 2 \n"
+ " lsr.f lp_count, %1, 1 \n"
+ " bcc 0f \n"
+ " add.f %0, %0, %2 \n"
+ " ld.ab %2, [%3, 4] \n"
+ "0: lp 1f \n"
+ " ld.ab %1, [%3, 4] \n"
+ " adc.f %0, %0, %2 \n"
+ " ld.ab %2, [%3, 4] \n"
+ " adc.f %0, %0, %1 \n"
+ "1: adc.f %0, %0, %2 \n"
+ " add.cs %0,%0,1 \n"
+ : "=&r"(sum), "=r"(tmp), "=&r"(tmp2), "+&r" (ptr)
+ : "r"(ihl)
+ : "cc", "lp_count", "memory");
+
+ return csum_fold(sum);
+}
+
+/*
+ * TCP pseudo Header is 12 bytes:
+ * SA [4], DA [4], zeroes [1], Proto[1], TCP Seg(hdr+data) Len [2]
+ */
+static inline __wsum
+csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
+ unsigned short proto, __wsum sum)
+{
+ __asm__ __volatile__(
+ " add.f %0, %0, %1 \n"
+ " adc.f %0, %0, %2 \n"
+ " adc.f %0, %0, %3 \n"
+ " adc.f %0, %0, %4 \n"
+ " adc %0, %0, 0 \n"
+ : "+&r"(sum)
+ : "r"(saddr), "r"(daddr),
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ "r"(len),
+#else
+ "r"(len << 8),
+#endif
+ "r"(htons(proto))
+ : "cc");
+
+ return sum;
+}
+
+#define csum_fold csum_fold
+#define ip_fast_csum ip_fast_csum
+#define csum_tcpudp_nofold csum_tcpudp_nofold
+
+#include <asm-generic/checksum.h>
+
+#endif /* _ASM_ARC_CHECKSUM_H */
diff --git a/arch/arc/include/asm/clk.h b/arch/arc/include/asm/clk.h
new file mode 100644
index 000000000000..bf9d29f5bd53
--- /dev/null
+++ b/arch/arc/include/asm/clk.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _ASM_ARC_CLK_H
+#define _ASM_ARC_CLK_H
+
+/* Although we can't really hide core_freq, the accessor is still better way */
+extern unsigned long core_freq;
+
+static inline unsigned long arc_get_core_freq(void)
+{
+ return core_freq;
+}
+
+extern int arc_set_core_freq(unsigned long);
+
+#endif
diff --git a/arch/arc/include/asm/cmpxchg.h b/arch/arc/include/asm/cmpxchg.h
new file mode 100644
index 000000000000..03cd6894855d
--- /dev/null
+++ b/arch/arc/include/asm/cmpxchg.h
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_ARC_CMPXCHG_H
+#define __ASM_ARC_CMPXCHG_H
+
+#include <linux/types.h>
+#include <asm/smp.h>
+
+#ifdef CONFIG_ARC_HAS_LLSC
+
+static inline unsigned long
+__cmpxchg(volatile void *ptr, unsigned long expected, unsigned long new)
+{
+ unsigned long prev;
+
+ __asm__ __volatile__(
+ "1: llock %0, [%1] \n"
+ " brne %0, %2, 2f \n"
+ " scond %3, [%1] \n"
+ " bnz 1b \n"
+ "2: \n"
+ : "=&r"(prev)
+ : "r"(ptr), "ir"(expected),
+ "r"(new) /* can't be "ir". scond can't take limm for "b" */
+ : "cc");
+
+ return prev;
+}
+
+#else
+
+static inline unsigned long
+__cmpxchg(volatile void *ptr, unsigned long expected, unsigned long new)
+{
+ unsigned long flags;
+ int prev;
+ volatile unsigned long *p = ptr;
+
+ atomic_ops_lock(flags);
+ prev = *p;
+ if (prev == expected)
+ *p = new;
+ atomic_ops_unlock(flags);
+ return prev;
+}
+
+#endif /* CONFIG_ARC_HAS_LLSC */
+
+#define cmpxchg(ptr, o, n) ((typeof(*(ptr)))__cmpxchg((ptr), \
+ (unsigned long)(o), (unsigned long)(n)))
+
+/*
+ * Since not supported natively, ARC cmpxchg() uses atomic_ops_lock (UP/SMP)
+ * just to gaurantee semantics.
+ * atomic_cmpxchg() needs to use the same locks as it's other atomic siblings
+ * which also happens to be atomic_ops_lock.
+ *
+ * Thus despite semantically being different, implementation of atomic_cmpxchg()
+ * is same as cmpxchg().
+ */
+#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+
+
+/*
+ * xchg (reg with memory) based on "Native atomic" EX insn
+ */
+static inline unsigned long __xchg(unsigned long val, volatile void *ptr,
+ int size)
+{
+ extern unsigned long __xchg_bad_pointer(void);
+
+ switch (size) {
+ case 4:
+ __asm__ __volatile__(
+ " ex %0, [%1] \n"
+ : "+r"(val)
+ : "r"(ptr)
+ : "memory");
+
+ return val;
+ }
+ return __xchg_bad_pointer();
+}
+
+#define _xchg(ptr, with) ((typeof(*(ptr)))__xchg((unsigned long)(with), (ptr), \
+ sizeof(*(ptr))))
+
+/*
+ * On ARC700, EX insn is inherently atomic, so by default "vanilla" xchg() need
+ * not require any locking. However there's a quirk.
+ * ARC lacks native CMPXCHG, thus emulated (see above), using external locking -
+ * incidently it "reuses" the same atomic_ops_lock used by atomic APIs.
+ * Now, llist code uses cmpxchg() and xchg() on same data, so xchg() needs to
+ * abide by same serializing rules, thus ends up using atomic_ops_lock as well.
+ *
+ * This however is only relevant if SMP and/or ARC lacks LLSC
+ * if (UP or LLSC)
+ * xchg doesn't need serialization
+ * else <==> !(UP or LLSC) <==> (!UP and !LLSC) <==> (SMP and !LLSC)
+ * xchg needs serialization
+ */
+
+#if !defined(CONFIG_ARC_HAS_LLSC) && defined(CONFIG_SMP)
+
+#define xchg(ptr, with) \
+({ \
+ unsigned long flags; \
+ typeof(*(ptr)) old_val; \
+ \
+ atomic_ops_lock(flags); \
+ old_val = _xchg(ptr, with); \
+ atomic_ops_unlock(flags); \
+ old_val; \
+})
+
+#else
+
+#define xchg(ptr, with) _xchg(ptr, with)
+
+#endif
+
+/*
+ * "atomic" variant of xchg()
+ * REQ: It needs to follow the same serialization rules as other atomic_xxx()
+ * Since xchg() doesn't always do that, it would seem that following defintion
+ * is incorrect. But here's the rationale:
+ * SMP : Even xchg() takes the atomic_ops_lock, so OK.
+ * LLSC: atomic_ops_lock are not relevent at all (even if SMP, since LLSC
+ * is natively "SMP safe", no serialization required).
+ * UP : other atomics disable IRQ, so no way a difft ctxt atomic_xchg()
+ * could clobber them. atomic_xchg() itself would be 1 insn, so it
+ * can't be clobbered by others. Thus no serialization required when
+ * atomic_xchg is involved.
+ */
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
+#endif
diff --git a/arch/arc/include/asm/current.h b/arch/arc/include/asm/current.h
new file mode 100644
index 000000000000..87b918585c4a
--- /dev/null
+++ b/arch/arc/include/asm/current.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Vineetg: May 16th, 2008
+ * - Current macro is now implemented as "global register" r25
+ */
+
+#ifndef _ASM_ARC_CURRENT_H
+#define _ASM_ARC_CURRENT_H
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_ARC_CURR_IN_REG
+
+register struct task_struct *curr_arc asm("r25");
+#define current (curr_arc)
+
+#else
+#include <asm-generic/current.h>
+#endif /* ! CONFIG_ARC_CURR_IN_REG */
+
+#endif /* ! __ASSEMBLY__ */
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_ARC_CURRENT_H */
diff --git a/arch/arc/include/asm/defines.h b/arch/arc/include/asm/defines.h
new file mode 100644
index 000000000000..6097bb439cc5
--- /dev/null
+++ b/arch/arc/include/asm/defines.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ARC_ASM_DEFINES_H__
+#define __ARC_ASM_DEFINES_H__
+
+#if defined(CONFIG_ARC_MMU_V1)
+#define CONFIG_ARC_MMU_VER 1
+#elif defined(CONFIG_ARC_MMU_V2)
+#define CONFIG_ARC_MMU_VER 2
+#elif defined(CONFIG_ARC_MMU_V3)
+#define CONFIG_ARC_MMU_VER 3
+#endif
+
+#ifdef CONFIG_ARC_HAS_LLSC
+#define __CONFIG_ARC_HAS_LLSC_VAL 1
+#else
+#define __CONFIG_ARC_HAS_LLSC_VAL 0
+#endif
+
+#ifdef CONFIG_ARC_HAS_SWAPE
+#define __CONFIG_ARC_HAS_SWAPE_VAL 1
+#else
+#define __CONFIG_ARC_HAS_SWAPE_VAL 0
+#endif
+
+#ifdef CONFIG_ARC_HAS_RTSC
+#define __CONFIG_ARC_HAS_RTSC_VAL 1
+#else
+#define __CONFIG_ARC_HAS_RTSC_VAL 0
+#endif
+
+#ifdef CONFIG_ARC_MMU_SASID
+#define __CONFIG_ARC_MMU_SASID_VAL 1
+#else
+#define __CONFIG_ARC_MMU_SASID_VAL 0
+#endif
+
+#ifdef CONFIG_ARC_HAS_ICACHE
+#define __CONFIG_ARC_HAS_ICACHE 1
+#else
+#define __CONFIG_ARC_HAS_ICACHE 0
+#endif
+
+#ifdef CONFIG_ARC_HAS_DCACHE
+#define __CONFIG_ARC_HAS_DCACHE 1
+#else
+#define __CONFIG_ARC_HAS_DCACHE 0
+#endif
+
+#endif /* __ARC_ASM_DEFINES_H__ */
diff --git a/arch/arc/include/asm/delay.h b/arch/arc/include/asm/delay.h
new file mode 100644
index 000000000000..442ce5d0f709
--- /dev/null
+++ b/arch/arc/include/asm/delay.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Delay routines using pre computed loops_per_jiffy value.
+ *
+ * vineetg: Feb 2012
+ * -Rewrote in "C" to avoid dealing with availability of H/w MPY
+ * -Also reduced the num of MPY operations from 3 to 2
+ *
+ * Amit Bhor: Codito Technologies 2004
+ */
+
+#ifndef __ASM_ARC_UDELAY_H
+#define __ASM_ARC_UDELAY_H
+
+#include <asm/param.h> /* HZ */
+
+static inline void __delay(unsigned long loops)
+{
+ __asm__ __volatile__(
+ "1: sub.f %0, %0, 1 \n"
+ " jpnz 1b \n"
+ : "+r"(loops)
+ :
+ : "cc");
+}
+
+extern void __bad_udelay(void);
+
+/*
+ * Normal Math for computing loops in "N" usecs
+ * -we have precomputed @loops_per_jiffy
+ * -1 sec has HZ jiffies
+ * loops per "N" usecs = ((loops_per_jiffy * HZ / 1000000) * N)
+ *
+ * Approximate Division by multiplication:
+ * -Mathematically if we multiply and divide a number by same value the
+ * result remains unchanged: In this case, we use 2^32
+ * -> (loops_per_N_usec * 2^32 ) / 2^32
+ * -> (((loops_per_jiffy * HZ / 1000000) * N) * 2^32) / 2^32
+ * -> (loops_per_jiffy * HZ * N * 4295) / 2^32
+ *
+ * -Divide by 2^32 is very simply right shift by 32
+ * -We simply need to ensure that the multiply per above eqn happens in
+ * 64-bit precision (if CPU doesn't support it - gcc can emaulate it)
+ */
+
+static inline void __udelay(unsigned long usecs)
+{
+ unsigned long loops;
+
+ /* (long long) cast ensures 64 bit MPY - real or emulated
+ * HZ * 4295 is pre-evaluated by gcc - hence only 2 mpy ops
+ */
+ loops = ((long long)(usecs * 4295 * HZ) *
+ (long long)(loops_per_jiffy)) >> 32;
+
+ __delay(loops);
+}
+
+#define udelay(n) (__builtin_constant_p(n) ? ((n) > 20000 ? __bad_udelay() \
+ : __udelay(n)) : __udelay(n))
+
+#endif /* __ASM_ARC_UDELAY_H */
diff --git a/arch/arc/include/asm/disasm.h b/arch/arc/include/asm/disasm.h
new file mode 100644
index 000000000000..f1cce3d059a1
--- /dev/null
+++ b/arch/arc/include/asm/disasm.h
@@ -0,0 +1,116 @@
+/*
+ * several functions that help interpret ARC instructions
+ * used for unaligned accesses, kprobes and kgdb
+ *
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ARC_DISASM_H__
+#define __ARC_DISASM_H__
+
+enum {
+ op_Bcc = 0, op_BLcc = 1, op_LD = 2, op_ST = 3, op_MAJOR_4 = 4,
+ op_MAJOR_5 = 5, op_LD_ADD = 12, op_ADD_SUB_SHIFT = 13,
+ op_ADD_MOV_CMP = 14, op_S = 15, op_LD_S = 16, op_LDB_S = 17,
+ op_LDW_S = 18, op_LDWX_S = 19, op_ST_S = 20, op_STB_S = 21,
+ op_STW_S = 22, op_Su5 = 23, op_SP = 24, op_GP = 25,
+ op_Pcl = 26, op_MOV_S = 27, op_ADD_CMP = 28, op_BR_S = 29,
+ op_B_S = 30, op_BL_S = 31
+};
+
+enum flow {
+ noflow,
+ direct_jump,
+ direct_call,
+ indirect_jump,
+ indirect_call,
+ invalid_instr
+};
+
+#define IS_BIT(word, n) ((word) & (1<<n))
+#define BITS(word, s, e) (((word) >> (s)) & (~((-2) << ((e) - (s)))))
+
+#define MAJOR_OPCODE(word) (BITS((word), 27, 31))
+#define MINOR_OPCODE(word) (BITS((word), 16, 21))
+#define FIELD_A(word) (BITS((word), 0, 5))
+#define FIELD_B(word) ((BITS((word), 12, 14)<<3) | \
+ (BITS((word), 24, 26)))
+#define FIELD_C(word) (BITS((word), 6, 11))
+#define FIELD_u6(word) FIELDC(word)
+#define FIELD_s12(word) sign_extend(((BITS((word), 0, 5) << 6) | \
+ BITS((word), 6, 11)), 12)
+
+/* note that for BL/BRcc these two macro's need another AND statement to mask
+ * out bit 1 (make the result a multiple of 4) */
+#define FIELD_s9(word) sign_extend(((BITS(word, 15, 15) << 8) | \
+ BITS(word, 16, 23)), 9)
+#define FIELD_s21(word) sign_extend(((BITS(word, 6, 15) << 11) | \
+ (BITS(word, 17, 26) << 1)), 12)
+#define FIELD_s25(word) sign_extend(((BITS(word, 0, 3) << 21) | \
+ (BITS(word, 6, 15) << 11) | \
+ (BITS(word, 17, 26) << 1)), 12)
+
+/* note: these operate on 16 bits! */
+#define FIELD_S_A(word) ((BITS((word), 2, 2)<<3) | BITS((word), 0, 2))
+#define FIELD_S_B(word) ((BITS((word), 10, 10)<<3) | \
+ BITS((word), 8, 10))
+#define FIELD_S_C(word) ((BITS((word), 7, 7)<<3) | BITS((word), 5, 7))
+#define FIELD_S_H(word) ((BITS((word), 0, 2)<<3) | BITS((word), 5, 8))
+#define FIELD_S_u5(word) (BITS((word), 0, 4))
+#define FIELD_S_u6(word) (BITS((word), 0, 4) << 1)
+#define FIELD_S_u7(word) (BITS((word), 0, 4) << 2)
+#define FIELD_S_u10(word) (BITS((word), 0, 7) << 2)
+#define FIELD_S_s7(word) sign_extend(BITS((word), 0, 5) << 1, 9)
+#define FIELD_S_s8(word) sign_extend(BITS((word), 0, 7) << 1, 9)
+#define FIELD_S_s9(word) sign_extend(BITS((word), 0, 8), 9)
+#define FIELD_S_s10(word) sign_extend(BITS((word), 0, 8) << 1, 10)
+#define FIELD_S_s11(word) sign_extend(BITS((word), 0, 8) << 2, 11)
+#define FIELD_S_s13(word) sign_extend(BITS((word), 0, 10) << 2, 13)
+
+#define STATUS32_L 0x00000100
+#define REG_LIMM 62
+
+struct disasm_state {
+ /* generic info */
+ unsigned long words[2];
+ int instr_len;
+ int major_opcode;
+ /* info for branch/jump */
+ int is_branch;
+ int target;
+ int delay_slot;
+ enum flow flow;
+ /* info for load/store */
+ int src1, src2, src3, dest, wb_reg;
+ int zz, aa, x, pref, di;
+ int fault, write;
+};
+
+static inline int sign_extend(int value, int bits)
+{
+ if (IS_BIT(value, (bits - 1)))
+ value |= (0xffffffff << bits);
+
+ return value;
+}
+
+static inline int is_short_instr(unsigned long addr)
+{
+ uint16_t word = *((uint16_t *)addr);
+ int opcode = (word >> 11) & 0x1F;
+ return (opcode >= 0x0B);
+}
+
+void disasm_instr(unsigned long addr, struct disasm_state *state,
+ int userspace, struct pt_regs *regs, struct callee_regs *cregs);
+int disasm_next_pc(unsigned long pc, struct pt_regs *regs, struct callee_regs
+ *cregs, unsigned long *fall_thru, unsigned long *target);
+long get_reg(int reg, struct pt_regs *regs, struct callee_regs *cregs);
+void set_reg(int reg, long val, struct pt_regs *regs,
+ struct callee_regs *cregs);
+
+#endif /* __ARC_DISASM_H__ */
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..31f77aec0823
--- /dev/null
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -0,0 +1,221 @@
+/*
+ * DMA Mapping glue for ARC
+ *
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef ASM_ARC_DMA_MAPPING_H
+#define ASM_ARC_DMA_MAPPING_H
+
+#include <asm-generic/dma-coherent.h>
+#include <asm/cacheflush.h>
+
+#ifndef CONFIG_ARC_PLAT_NEEDS_CPU_TO_DMA
+/*
+ * dma_map_* API take cpu addresses, which is kernel logical address in the
+ * untranslated address space (0x8000_0000) based. The dma address (bus addr)
+ * ideally needs to be 0x0000_0000 based hence these glue routines.
+ * However given that intermediate bus bridges can ignore the high bit, we can
+ * do with these routines being no-ops.
+ * If a platform/device comes up which sriclty requires 0 based bus addr
+ * (e.g. AHB-PCI bridge on Angel4 board), then it can provide it's own versions
+ */
+#define plat_dma_addr_to_kernel(dev, addr) ((unsigned long)(addr))
+#define plat_kernel_addr_to_dma(dev, ptr) ((dma_addr_t)(ptr))
+
+#else
+#include <plat/dma_addr.h>
+#endif
+
+void *dma_alloc_noncoherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp);
+
+void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr,
+ dma_addr_t dma_handle);
+
+void *dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp);
+
+void dma_free_coherent(struct device *dev, size_t size, void *kvaddr,
+ dma_addr_t dma_handle);
+
+/* drivers/base/dma-mapping.c */
+extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
+ void *cpu_addr, dma_addr_t dma_addr, size_t size);
+extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t dma_addr,
+ size_t size);
+
+#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s)
+#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
+
+/*
+ * streaming DMA Mapping API...
+ * CPU accesses page via normal paddr, thus needs to explicitly made
+ * consistent before each use
+ */
+
+static inline void __inline_dma_cache_sync(unsigned long paddr, size_t size,
+ enum dma_data_direction dir)
+{
+ switch (dir) {
+ case DMA_FROM_DEVICE:
+ dma_cache_inv(paddr, size);
+ break;
+ case DMA_TO_DEVICE:
+ dma_cache_wback(paddr, size);
+ break;
+ case DMA_BIDIRECTIONAL:
+ dma_cache_wback_inv(paddr, size);
+ break;
+ default:
+ pr_err("Invalid DMA dir [%d] for OP @ %lx\n", dir, paddr);
+ }
+}
+
+void __arc_dma_cache_sync(unsigned long paddr, size_t size,
+ enum dma_data_direction dir);
+
+#define _dma_cache_sync(addr, sz, dir) \
+do { \
+ if (__builtin_constant_p(dir)) \
+ __inline_dma_cache_sync(addr, sz, dir); \
+ else \
+ __arc_dma_cache_sync(addr, sz, dir); \
+} \
+while (0);
+
+static inline dma_addr_t
+dma_map_single(struct device *dev, void *cpu_addr, size_t size,
+ enum dma_data_direction dir)
+{
+ _dma_cache_sync((unsigned long)cpu_addr, size, dir);
+ return plat_kernel_addr_to_dma(dev, cpu_addr);
+}
+
+static inline void
+dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction dir)
+{
+}
+
+static inline dma_addr_t
+dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir)
+{
+ unsigned long paddr = page_to_phys(page) + offset;
+ return dma_map_single(dev, (void *)paddr, size, dir);
+}
+
+static inline void
+dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
+ size_t size, enum dma_data_direction dir)
+{
+}
+
+static inline int
+dma_map_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir)
+{
+ struct scatterlist *s;
+ int i;
+
+ for_each_sg(sg, s, nents, i)
+ sg->dma_address = dma_map_page(dev, sg_page(s), s->offset,
+ s->length, dir);
+
+ return nents;
+}
+
+static inline void
+dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir)
+{
+ struct scatterlist *s;
+ int i;
+
+ for_each_sg(sg, s, nents, i)
+ dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir);
+}
+
+static inline void
+dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+ size_t size, enum dma_data_direction dir)
+{
+ _dma_cache_sync(plat_dma_addr_to_kernel(dev, dma_handle), size,
+ DMA_FROM_DEVICE);
+}
+
+static inline void
+dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+ size_t size, enum dma_data_direction dir)
+{
+ _dma_cache_sync(plat_dma_addr_to_kernel(dev, dma_handle), size,
+ DMA_TO_DEVICE);
+}
+
+static inline void
+dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,</