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-rw-r--r--arch/.gitignore1
-rw-r--r--arch/Kconfig31
-rw-r--r--arch/alpha/configs/defconfig4
-rw-r--r--arch/alpha/include/asm/Kbuild11
-rw-r--r--arch/alpha/include/asm/futex.h5
-rw-r--r--arch/alpha/include/asm/mmzone.h2
-rw-r--r--arch/alpha/include/asm/page.h3
-rw-r--r--arch/alpha/include/asm/pgtable.h2
-rw-r--r--arch/alpha/kernel/.gitignore1
-rw-r--r--arch/alpha/kernel/irq_alpha.c29
-rw-r--r--arch/alpha/kernel/irq_i8259.c8
-rw-r--r--arch/alpha/kernel/irq_impl.h7
-rw-r--r--arch/alpha/kernel/irq_pyxis.c3
-rw-r--r--arch/alpha/kernel/sys_alcor.c3
-rw-r--r--arch/alpha/kernel/sys_cabriolet.c3
-rw-r--r--arch/alpha/kernel/sys_eb64p.c3
-rw-r--r--arch/alpha/kernel/sys_marvel.c2
-rw-r--r--arch/alpha/kernel/sys_miata.c6
-rw-r--r--arch/alpha/kernel/sys_nautilus.c52
-rw-r--r--arch/alpha/kernel/sys_ruffian.c3
-rw-r--r--arch/alpha/kernel/sys_rx164.c3
-rw-r--r--arch/alpha/kernel/sys_sx164.c3
-rw-r--r--arch/alpha/kernel/sys_wildfire.c7
-rw-r--r--arch/alpha/kernel/syscalls/syscallhdr.sh2
-rw-r--r--arch/alpha/kernel/time.c6
-rw-r--r--arch/alpha/mm/fault.c6
-rw-r--r--arch/arc/Kconfig54
-rw-r--r--arch/arc/boot/.gitignore1
-rw-r--r--arch/arc/boot/dts/axs10x_mb.dtsi1
-rw-r--r--arch/arc/configs/nps_defconfig2
-rw-r--r--arch/arc/configs/nsimosci_defconfig2
-rw-r--r--arch/arc/configs/nsimosci_hs_defconfig2
-rw-r--r--arch/arc/configs/nsimosci_hs_smp_defconfig2
-rw-r--r--arch/arc/include/asm/Kbuild21
-rw-r--r--arch/arc/include/asm/arcregs.h26
-rw-r--r--arch/arc/include/asm/asserts.h34
-rw-r--r--arch/arc/include/asm/dsp-impl.h150
-rw-r--r--arch/arc/include/asm/dsp.h29
-rw-r--r--arch/arc/include/asm/entry-arcv2.h6
-rw-r--r--arch/arc/include/asm/fpu.h2
-rw-r--r--arch/arc/include/asm/futex.h5
-rw-r--r--arch/arc/include/asm/linkage.h2
-rw-r--r--arch/arc/include/asm/page.h2
-rw-r--r--arch/arc/include/asm/processor.h4
-rw-r--r--arch/arc/include/asm/ptrace.h3
-rw-r--r--arch/arc/include/asm/switch_to.h2
-rw-r--r--arch/arc/kernel/.gitignore1
-rw-r--r--arch/arc/kernel/asm-offsets.c4
-rw-r--r--arch/arc/kernel/head.S4
-rw-r--r--arch/arc/kernel/setup.c36
-rw-r--r--arch/arc/kernel/troubleshoot.c27
-rw-r--r--arch/arc/mm/fault.c35
-rw-r--r--arch/arm/Kconfig3
-rw-r--r--arch/arm/Kconfig.debug42
-rw-r--r--arch/arm/Makefile6
-rw-r--r--arch/arm/boot/.gitignore1
-rw-r--r--arch/arm/boot/compressed/.gitignore1
-rw-r--r--arch/arm/boot/compressed/Makefile4
-rw-r--r--arch/arm/boot/compressed/efi-header.S6
-rw-r--r--arch/arm/boot/compressed/head.S194
-rw-r--r--arch/arm/boot/compressed/vmlinux.lds.S1
-rw-r--r--arch/arm/boot/dts/Makefile20
-rw-r--r--arch/arm/boot/dts/am33xx-l4.dtsi21
-rw-r--r--arch/arm/boot/dts/am33xx.dtsi133
-rw-r--r--arch/arm/boot/dts/am4372.dtsi191
-rw-r--r--arch/arm/boot/dts/am437x-l4.dtsi77
-rw-r--r--arch/arm/boot/dts/am57-pruss.dtsi50
-rw-r--r--arch/arm/boot/dts/am5718.dtsi1
-rw-r--r--arch/arm/boot/dts/am5728.dtsi1
-rw-r--r--arch/arm/boot/dts/am5748.dtsi1
-rw-r--r--arch/arm/boot/dts/arm-realview-pbx.dtsi2
-rw-r--r--arch/arm/boot/dts/aspeed-g4.dtsi2
-rw-r--r--arch/arm/boot/dts/aspeed-g5.dtsi2
-rw-r--r--arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi25
-rw-r--r--arch/arm/boot/dts/aspeed-g6.dtsi45
-rw-r--r--arch/arm/boot/dts/at91-dvk_su60_somc_lcm.dtsi2
-rw-r--r--arch/arm/boot/dts/at91-sam9x60ek.dts5
-rw-r--r--arch/arm/boot/dts/at91-sama5d27_wlsom1_ek.dts12
-rw-r--r--arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts33
-rw-r--r--arch/arm/boot/dts/at91-sama5d2_xplained.dts33
-rw-r--r--arch/arm/boot/dts/at91-sama5d4_ma5d4evk.dts2
-rw-r--r--arch/arm/boot/dts/at91sam9n12ek.dts2
-rw-r--r--arch/arm/boot/dts/at91sam9x5dm.dtsi2
-rw-r--r--arch/arm/boot/dts/bcm2711-rpi-4-b.dts74
-rw-r--r--arch/arm/boot/dts/bcm2711.dtsi25
-rw-r--r--arch/arm/boot/dts/dm8148-evm.dts4
-rw-r--r--arch/arm/boot/dts/dm8148-t410.dts4
-rw-r--r--arch/arm/boot/dts/dm814x-clocks.dtsi14
-rw-r--r--arch/arm/boot/dts/dm814x.dtsi260
-rw-r--r--arch/arm/boot/dts/dm816x.dtsi148
-rw-r--r--arch/arm/boot/dts/dra62x-j5eco-evm.dts4
-rw-r--r--arch/arm/boot/dts/dra62x.dtsi6
-rw-r--r--arch/arm/boot/dts/dra7.dtsi220
-rw-r--r--arch/arm/boot/dts/dra72x.dtsi6
-rw-r--r--arch/arm/boot/dts/dra74x.dtsi10
-rw-r--r--arch/arm/boot/dts/ecx-2000.dts6
-rw-r--r--arch/arm/boot/dts/ecx-common.dtsi17
-rw-r--r--arch/arm/boot/dts/exynos3250-artik5.dtsi2
-rw-r--r--arch/arm/boot/dts/exynos4210-universal_c210.dts4
-rw-r--r--arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi4
-rw-r--r--arch/arm/boot/dts/exynos4412-n710x.dts2
-rw-r--r--arch/arm/boot/dts/exynos4412-odroid-common.dtsi9
-rw-r--r--arch/arm/boot/dts/exynos5250-arndale.dts10
-rw-r--r--arch/arm/boot/dts/exynos5420-arndale-octa.dts2
-rw-r--r--arch/arm/boot/dts/exynos5422-cpus.dtsi8
-rw-r--r--arch/arm/boot/dts/exynos5422-odroid-core.dtsi1
-rw-r--r--arch/arm/boot/dts/exynos5422-odroidhc1.dts30
-rw-r--r--arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi59
-rw-r--r--arch/arm/boot/dts/gemini-dlink-dir-685.dts50
-rw-r--r--arch/arm/boot/dts/gemini-dlink-dns-313.dts2
-rw-r--r--arch/arm/boot/dts/gemini-nas4220b.dts4
-rw-r--r--arch/arm/boot/dts/gemini-sl93512r.dts4
-rw-r--r--arch/arm/boot/dts/gemini-sq201.dts2
-rw-r--r--arch/arm/boot/dts/gemini.dtsi8
-rw-r--r--arch/arm/boot/dts/highbank.dts11
-rw-r--r--arch/arm/boot/dts/imx23-olinuxino.dts2
-rw-r--r--arch/arm/boot/dts/imx23.dtsi10
-rw-r--r--arch/arm/boot/dts/imx25-pinfunc.h8
-rw-r--r--arch/arm/boot/dts/imx25.dtsi4
-rw-r--r--arch/arm/boot/dts/imx27.dtsi2
-rw-r--r--arch/arm/boot/dts/imx28-apx4devkit.dts10
-rw-r--r--arch/arm/boot/dts/imx28.dtsi2
-rw-r--r--arch/arm/boot/dts/imx31.dtsi4
-rw-r--r--arch/arm/boot/dts/imx35.dtsi4
-rw-r--r--arch/arm/boot/dts/imx50.dtsi4
-rw-r--r--arch/arm/boot/dts/imx51-zii-rdu1.dts5
-rw-r--r--arch/arm/boot/dts/imx51.dtsi17
-rw-r--r--arch/arm/boot/dts/imx53.dtsi4
-rw-r--r--arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts40
-rw-r--r--arch/arm/boot/dts/imx6dl-pico-dwarf.dts17
-rw-r--r--arch/arm/boot/dts/imx6dl-pico-hobbit.dts17
-rw-r--r--arch/arm/boot/dts/imx6dl-pico-nymph.dts17
-rw-r--r--arch/arm/boot/dts/imx6dl-pico-pi.dts17
-rw-r--r--arch/arm/boot/dts/imx6dl-riotboard.dts16
-rw-r--r--arch/arm/boot/dts/imx6dl-yapp4-common.dtsi2
-rw-r--r--arch/arm/boot/dts/imx6dl.dtsi8
-rw-r--r--arch/arm/boot/dts/imx6q-apalis-eval.dts40
-rw-r--r--arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts40
-rw-r--r--arch/arm/boot/dts/imx6q-apalis-ixora.dts40
-rw-r--r--arch/arm/boot/dts/imx6q-marsboard.dts16
-rw-r--r--arch/arm/boot/dts/imx6q-novena.dts2
-rw-r--r--arch/arm/boot/dts/imx6q-pico-dwarf.dts17
-rw-r--r--arch/arm/boot/dts/imx6q-pico-hobbit.dts17
-rw-r--r--arch/arm/boot/dts/imx6q-pico-nymph.dts17
-rw-r--r--arch/arm/boot/dts/imx6q-pico-pi.dts17
-rw-r--r--arch/arm/boot/dts/imx6q.dtsi6
-rw-r--r--arch/arm/boot/dts/imx6qdl-apalis.dtsi42
-rw-r--r--arch/arm/boot/dts/imx6qdl-colibri.dtsi40
-rw-r--r--arch/arm/boot/dts/imx6qdl-gw52xx.dtsi5
-rw-r--r--arch/arm/boot/dts/imx6qdl-gw53xx.dtsi5
-rw-r--r--arch/arm/boot/dts/imx6qdl-gw54xx.dtsi5
-rw-r--r--arch/arm/boot/dts/imx6qdl-gw553x.dtsi31
-rw-r--r--arch/arm/boot/dts/imx6qdl-gw5910.dtsi25
-rw-r--r--arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi9
-rw-r--r--arch/arm/boot/dts/imx6qdl-pico-dwarf.dtsi45
-rw-r--r--arch/arm/boot/dts/imx6qdl-pico-hobbit.dtsi37
-rw-r--r--arch/arm/boot/dts/imx6qdl-pico-nymph.dtsi54
-rw-r--r--arch/arm/boot/dts/imx6qdl-pico-pi.dtsi31
-rw-r--r--arch/arm/boot/dts/imx6qdl-pico.dtsi617
-rw-r--r--arch/arm/boot/dts/imx6qdl-sr-som-ti.dtsi1
-rw-r--r--arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi7
-rw-r--r--arch/arm/boot/dts/imx6qdl.dtsi30
-rw-r--r--arch/arm/boot/dts/imx6qp.dtsi2
-rw-r--r--arch/arm/boot/dts/imx6sl.dtsi28
-rw-r--r--arch/arm/boot/dts/imx6sll.dtsi12
-rw-r--r--arch/arm/boot/dts/imx6sx-nitrogen6sx.dts20
-rw-r--r--arch/arm/boot/dts/imx6sx-pinfunc.h286
-rw-r--r--arch/arm/boot/dts/imx6sx-sabreauto.dts4
-rw-r--r--arch/arm/boot/dts/imx6sx-sdb.dtsi12
-rw-r--r--arch/arm/boot/dts/imx6sx-softing-vining-2000.dts22
-rw-r--r--arch/arm/boot/dts/imx6sx-udoo-neo.dtsi28
-rw-r--r--arch/arm/boot/dts/imx6sx.dtsi34
-rw-r--r--arch/arm/boot/dts/imx6ul-ccimx6ulsbcpro.dts2
-rw-r--r--arch/arm/boot/dts/imx6ul-pico-dwarf.dts52
-rw-r--r--arch/arm/boot/dts/imx6ul-pico.dtsi39
-rw-r--r--arch/arm/boot/dts/imx6ul.dtsi28
-rw-r--r--arch/arm/boot/dts/imx6ull.dtsi2
-rw-r--r--arch/arm/boot/dts/imx7-colibri-aster.dtsi169
-rw-r--r--arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi46
-rw-r--r--arch/arm/boot/dts/imx7-colibri.dtsi230
-rw-r--r--arch/arm/boot/dts/imx7d-cl-som-imx7.dts4
-rw-r--r--arch/arm/boot/dts/imx7d-colibri-aster.dts20
-rw-r--r--arch/arm/boot/dts/imx7d-colibri-emmc-aster.dts20
-rw-r--r--arch/arm/boot/dts/imx7d-colibri-emmc.dtsi26
-rw-r--r--arch/arm/boot/dts/imx7d-colibri-eval-v3.dts41
-rw-r--r--arch/arm/boot/dts/imx7d-colibri.dtsi41
-rw-r--r--arch/arm/boot/dts/imx7d-pico-dwarf.dts87
-rw-r--r--arch/arm/boot/dts/imx7d-pico-nymph.dts84
-rw-r--r--arch/arm/boot/dts/imx7s-colibri-aster.dts15
-rw-r--r--arch/arm/boot/dts/imx7s-colibri-eval-v3.dts41
-rw-r--r--arch/arm/boot/dts/imx7s-colibri.dtsi41
-rw-r--r--arch/arm/boot/dts/imx7s.dtsi38
-rw-r--r--arch/arm/boot/dts/imx7ulp-evk.dts3
-rw-r--r--arch/arm/boot/dts/imx7ulp.dtsi4
-rw-r--r--arch/arm/boot/dts/integratorap.dts1
-rw-r--r--arch/arm/boot/dts/mmp2-brownstone.dts332
-rw-r--r--arch/arm/boot/dts/mmp2.dtsi16
-rw-r--r--arch/arm/boot/dts/mmp3.dtsi16
-rw-r--r--arch/arm/boot/dts/motorola-mapphone-common.dtsi2
-rw-r--r--arch/arm/boot/dts/mt2701.dtsi2
-rw-r--r--arch/arm/boot/dts/mt7623.dtsi2
-rw-r--r--arch/arm/boot/dts/mt7629.dtsi16
-rw-r--r--arch/arm/boot/dts/omap3-n900.dts44
-rw-r--r--arch/arm/boot/dts/omap4-l4.dtsi1
-rw-r--r--arch/arm/boot/dts/omap4.dtsi279
-rw-r--r--arch/arm/boot/dts/omap5-l4-abe.dtsi16
-rw-r--r--arch/arm/boot/dts/omap5.dtsi242
-rw-r--r--arch/arm/boot/dts/ox810se.dtsi4
-rw-r--r--arch/arm/boot/dts/ox820.dtsi4
-rw-r--r--arch/arm/boot/dts/pxa168-aspenite.dts24
-rw-r--r--arch/arm/boot/dts/pxa168.dtsi15
-rw-r--r--arch/arm/boot/dts/pxa910-dkb.dts286
-rw-r--r--arch/arm/boot/dts/pxa910.dtsi15
-rw-r--r--arch/arm/boot/dts/qcom-apq8064.dtsi1
-rw-r--r--arch/arm/boot/dts/qcom-apq8084.dtsi1
-rw-r--r--arch/arm/boot/dts/qcom-ipq4019.dtsi1
-rw-r--r--arch/arm/boot/dts/qcom-ipq8064.dtsi1
-rw-r--r--arch/arm/boot/dts/qcom-mdm9615.dtsi1
-rw-r--r--arch/arm/boot/dts/qcom-msm8660.dtsi1
-rw-r--r--arch/arm/boot/dts/qcom-msm8960.dtsi1
-rw-r--r--arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts71
-rw-r--r--arch/arm/boot/dts/qcom-msm8974-sony-xperia-honami.dts25
-rw-r--r--arch/arm/boot/dts/qcom-msm8974.dtsi10
-rw-r--r--arch/arm/boot/dts/r7s72100-gr-peach.dts3
-rw-r--r--arch/arm/boot/dts/r7s72100.dtsi5
-rw-r--r--arch/arm/boot/dts/r8a73a4-ape6evm.dts7
-rw-r--r--arch/arm/boot/dts/r8a7743.dtsi5
-rw-r--r--arch/arm/boot/dts/r8a7744.dtsi5
-rw-r--r--arch/arm/boot/dts/r8a7745-iwg22d-sodimm-dbhd-ca.dts6
-rw-r--r--arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts93
-rw-r--r--arch/arm/boot/dts/r8a7745.dtsi3
-rw-r--r--arch/arm/boot/dts/r8a77470.dtsi5
-rw-r--r--arch/arm/boot/dts/r8a7790-lager.dts1
-rw-r--r--arch/arm/boot/dts/r8a7790-stout.dts1
-rw-r--r--arch/arm/boot/dts/r8a7790.dtsi2
-rw-r--r--arch/arm/boot/dts/r8a7791-koelsch.dts1
-rw-r--r--arch/arm/boot/dts/r8a7791-porter.dts1
-rw-r--r--arch/arm/boot/dts/r8a7791.dtsi5
-rw-r--r--arch/arm/boot/dts/r8a7792.dtsi5
-rw-r--r--arch/arm/boot/dts/r8a7793-gose.dts1
-rw-r--r--arch/arm/boot/dts/r8a7793.dtsi5
-rw-r--r--arch/arm/boot/dts/r8a7794-alt.dts1
-rw-r--r--arch/arm/boot/dts/r8a7794-silk.dts1
-rw-r--r--arch/arm/boot/dts/r8a7794.dtsi2
-rw-r--r--arch/arm/boot/dts/rk3036-kylin.dts2
-rw-r--r--arch/arm/boot/dts/rk3036.dtsi8
-rw-r--r--arch/arm/boot/dts/rk3066a.dtsi18
-rw-r--r--arch/arm/boot/dts/rk3188-bqedison2qc.dts29
-rw-r--r--arch/arm/boot/dts/rk3188.dtsi10
-rw-r--r--arch/arm/boot/dts/rk322x.dtsi17
-rw-r--r--arch/arm/boot/dts/rk3288-evb-act8846.dts1
-rw-r--r--arch/arm/boot/dts/rk3288-evb-rk808.dts1
-rw-r--r--arch/arm/boot/dts/rk3288-firefly-reload.dts1
-rw-r--r--arch/arm/boot/dts/rk3288-r89.dts1
-rw-r--r--arch/arm/boot/dts/rk3288-tinker.dtsi1
-rw-r--r--arch/arm/boot/dts/rk3288-vyasa.dts28
-rw-r--r--arch/arm/boot/dts/rk3288.dtsi26
-rw-r--r--arch/arm/boot/dts/rk3xxx.dtsi4
-rw-r--r--arch/arm/boot/dts/rv1108.dtsi12
-rw-r--r--arch/arm/boot/dts/sam9x60.dtsi8
-rw-r--r--arch/arm/boot/dts/sama5d2.dtsi2
-rw-r--r--arch/arm/boot/dts/sama5d3.dtsi33
-rw-r--r--arch/arm/boot/dts/sama5d4.dtsi35
-rw-r--r--arch/arm/boot/dts/sh73a0-kzm9g.dts9
-rw-r--r--arch/arm/boot/dts/socfpga_arria10.dtsi12
-rw-r--r--arch/arm/boot/dts/socfpga_arria10_socdk_nand.dts4
-rw-r--r--arch/arm/boot/dts/ste-ab8500.dtsi6
-rw-r--r--arch/arm/boot/dts/ste-ab8505.dtsi6
-rw-r--r--arch/arm/boot/dts/ste-dbx5x0.dtsi6
-rw-r--r--arch/arm/boot/dts/ste-href-stuib.dtsi2
-rw-r--r--arch/arm/boot/dts/ste-href-tvk1281618-r2.dtsi2
-rw-r--r--arch/arm/boot/dts/ste-href-tvk1281618-r3.dtsi2
-rw-r--r--arch/arm/boot/dts/ste-ux500-samsung-skomer.dts581
-rw-r--r--arch/arm/boot/dts/stm32746g-eval.dts2
-rw-r--r--arch/arm/boot/dts/stm32mp15-pinctrl.dtsi93
-rw-r--r--arch/arm/boot/dts/stm32mp151.dtsi16
-rw-r--r--arch/arm/boot/dts/stm32mp153.dtsi1
-rw-r--r--arch/arm/boot/dts/stm32mp157a-avenger96.dts11
-rw-r--r--arch/arm/boot/dts/stm32mp157c-dhcom-pdk2.dts265
-rw-r--r--arch/arm/boot/dts/stm32mp157c-dhcom-som.dtsi368
-rw-r--r--arch/arm/boot/dts/stm32mp157c-ed1.dts16
-rw-r--r--arch/arm/boot/dts/stm32mp157c-ev1.dts13
-rw-r--r--arch/arm/boot/dts/stm32mp15xx-dkx.dtsi10
-rw-r--r--arch/arm/boot/dts/sun5i-a13-pocketbook-touch-lux-3.dts257
-rw-r--r--arch/arm/boot/dts/sun5i.dtsi5
-rw-r--r--arch/arm/boot/dts/sun6i-a31.dtsi12
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-rw-r--r--arch/x86/mm/fault.c58
-rw-r--r--arch/x86/mm/init.c9
-rw-r--r--arch/x86/mm/init_32.c71
-rw-r--r--arch/x86/mm/init_64.c43
-rw-r--r--arch/x86/mm/ioremap.c21
-rw-r--r--arch/x86/mm/kmmio.c10
-rw-r--r--arch/x86/mm/mm_internal.h3
-rw-r--r--arch/x86/mm/mmio-mod.c4
-rw-r--r--arch/x86/mm/numa.c67
-rw-r--r--arch/x86/mm/numa_emulation.c2
-rw-r--r--arch/x86/mm/pat/set_memory.c16
-rw-r--r--arch/x86/mm/pkeys.c2
-rw-r--r--arch/x86/mm/pti.c8
-rw-r--r--arch/x86/net/bpf_jit_comp.c260
-rw-r--r--arch/x86/net/bpf_jit_comp32.c10
-rw-r--r--arch/x86/platform/atom/punit_atom_debug.c13
-rw-r--r--arch/x86/platform/efi/efi.c288
-rw-r--r--arch/x86/platform/efi/efi_32.c13
-rw-r--r--arch/x86/platform/efi/efi_64.c14
-rw-r--r--arch/x86/platform/efi/efi_stub_32.S21
-rw-r--r--arch/x86/platform/efi/quirks.c13
-rw-r--r--arch/x86/platform/intel-mid/device_libs/platform_bt.c5
-rw-r--r--arch/x86/platform/intel-quark/imr.c2
-rw-r--r--arch/x86/platform/intel-quark/imr_selftest.c2
-rw-r--r--arch/x86/platform/intel/iosf_mbi.c13
-rw-r--r--arch/x86/platform/uv/bios_uv.c3
-rw-r--r--arch/x86/power/cpu.c16
-rw-r--r--arch/x86/realmode/rm/.gitignore1
-rw-r--r--arch/x86/realmode/rm/Makefile1
-rw-r--r--arch/x86/realmode/rm/realmode.lds.S1
-rw-r--r--arch/x86/tools/.gitignore1
-rw-r--r--arch/x86/um/Kconfig5
-rw-r--r--arch/x86/um/Makefile1
-rw-r--r--arch/x86/um/asm/processor.h12
-rw-r--r--arch/x86/um/asm/vm-flags.h10
-rw-r--r--arch/x86/um/sys_call_table_32.c6
-rw-r--r--arch/x86/um/sys_call_table_64.c9
-rw-r--r--arch/x86/um/user-offsets.c15
-rw-r--r--arch/x86/um/vdso/.gitignore1
-rw-r--r--arch/x86/xen/setup.c2
-rw-r--r--arch/x86/xen/smp.c2
-rw-r--r--arch/x86/xen/smp_pv.c3
-rw-r--r--arch/x86/xen/time.c36
-rw-r--r--arch/x86/xen/xen-head.S18
-rw-r--r--arch/xtensa/Kconfig4
-rw-r--r--arch/xtensa/boot/.gitignore1
-rw-r--r--arch/xtensa/boot/Makefile1
-rw-r--r--arch/xtensa/boot/boot-elf/.gitignore1
-rw-r--r--arch/xtensa/boot/lib/.gitignore1
-rw-r--r--arch/xtensa/include/asm/Kbuild26
-rw-r--r--arch/xtensa/include/asm/futex.h5
-rw-r--r--arch/xtensa/include/asm/page.h3
-rw-r--r--arch/xtensa/include/asm/pgtable.h3
-rw-r--r--arch/xtensa/kernel/.gitignore1
-rw-r--r--arch/xtensa/kernel/pci-dma.c12
-rw-r--r--arch/xtensa/kernel/smp.c8
-rw-r--r--arch/xtensa/kernel/syscalls/syscallhdr.sh2
-rw-r--r--arch/xtensa/kernel/time.c12
-rw-r--r--arch/xtensa/mm/fault.c5
-rw-r--r--arch/xtensa/platforms/iss/simdisk.c3
1961 files changed, 55563 insertions, 39282 deletions
diff --git a/arch/.gitignore b/arch/.gitignore
index 741468920320..4191da401dbb 100644
--- a/arch/.gitignore
+++ b/arch/.gitignore
@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
i386
x86_64
diff --git a/arch/Kconfig b/arch/Kconfig
index 17fe351cdde0..786a85d4ad40 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -248,11 +248,18 @@ config ARCH_HAS_SET_DIRECT_MAP
bool
#
-# Select if arch has an uncached kernel segment and provides the
-# uncached_kernel_address / cached_kernel_address symbols to use it
+# Select if the architecture provides the arch_dma_set_uncached symbol to
+# either provide an uncached segement alias for a DMA allocation, or
+# to remap the page tables in place.
#
-config ARCH_HAS_UNCACHED_SEGMENT
- select ARCH_HAS_DMA_PREP_COHERENT
+config ARCH_HAS_DMA_SET_UNCACHED
+ bool
+
+#
+# Select if the architectures provides the arch_dma_clear_uncached symbol
+# to undo an in-place page table remap for uncached access.
+#
+config ARCH_HAS_DMA_CLEAR_UNCACHED
bool
# Select if arch init_task must go in the __init_task_data section
@@ -540,11 +547,17 @@ config HAVE_CONTEXT_TRACKING
help
Provide kernel/user boundaries probes necessary for subsystems
that need it, such as userspace RCU extended quiescent state.
- Syscalls need to be wrapped inside user_exit()-user_enter() through
- the slow path using TIF_NOHZ flag. Exceptions handlers must be
- wrapped as well. Irqs are already protected inside
- rcu_irq_enter/rcu_irq_exit() but preemption or signal handling on
- irq exit still need to be protected.
+ Syscalls need to be wrapped inside user_exit()-user_enter(), either
+ optimized behind static key or through the slow path using TIF_NOHZ
+ flag. Exceptions handlers must be wrapped as well. Irqs are already
+ protected inside rcu_irq_enter/rcu_irq_exit() but preemption or signal
+ handling on irq exit still need to be protected.
+
+config HAVE_TIF_NOHZ
+ bool
+ help
+ Arch relies on TIF_NOHZ and syscall slow path to implement context
+ tracking calls to user_enter()/user_exit().
config HAVE_VIRT_CPU_ACCOUNTING
bool
diff --git a/arch/alpha/configs/defconfig b/arch/alpha/configs/defconfig
index f4ec420d7f2d..6293675db164 100644
--- a/arch/alpha/configs/defconfig
+++ b/arch/alpha/configs/defconfig
@@ -36,7 +36,6 @@ CONFIG_BLK_DEV_CY82C693=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
-CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=253
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
@@ -53,7 +52,8 @@ CONFIG_NET_PCI=y
CONFIG_YELLOWFIN=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_RTC=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_CMOS=y
CONFIG_EXT2_FS=y
CONFIG_REISERFS_FS=m
CONFIG_ISO9660_FS=y
diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild
index 89e87bbc987f..42911c8340c7 100644
--- a/arch/alpha/include/asm/Kbuild
+++ b/arch/alpha/include/asm/Kbuild
@@ -1,17 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
generated-y += syscall_table.h
-generic-y += compat.h
-generic-y += exec.h
generic-y += export.h
-generic-y += fb.h
-generic-y += irq_work.h
generic-y += kvm_para.h
generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
-generic-y += mmiowb.h
-generic-y += preempt.h
-generic-y += sections.h
-generic-y += trace_clock.h
-generic-y += current.h
-generic-y += kprobes.h
diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h
index bfd3c01038f8..da67afd578fd 100644
--- a/arch/alpha/include/asm/futex.h
+++ b/arch/alpha/include/asm/futex.h
@@ -31,7 +31,8 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
{
int oldval = 0, ret;
- pagefault_disable();
+ if (!access_ok(uaddr, sizeof(u32)))
+ return -EFAULT;
switch (op) {
case FUTEX_OP_SET:
@@ -53,8 +54,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
ret = -ENOSYS;
}
- pagefault_enable();
-
if (!ret)
*oval = oldval;
diff --git a/arch/alpha/include/asm/mmzone.h b/arch/alpha/include/asm/mmzone.h
index 7ee144f484f1..9b521c857436 100644
--- a/arch/alpha/include/asm/mmzone.h
+++ b/arch/alpha/include/asm/mmzone.h
@@ -8,8 +8,6 @@
#include <asm/smp.h>
-struct bootmem_data_t; /* stupid forward decl. */
-
/*
* Following are macros that are specific to this numa platform.
*/
diff --git a/arch/alpha/include/asm/page.h b/arch/alpha/include/asm/page.h
index f3fb2848470a..e241bd88880f 100644
--- a/arch/alpha/include/asm/page.h
+++ b/arch/alpha/include/asm/page.h
@@ -90,9 +90,6 @@ typedef struct page *pgtable_t;
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
#endif /* CONFIG_DISCONTIGMEM */
-#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-
#include <asm-generic/memory_model.h>
#include <asm-generic/getorder.h>
diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h
index 299791ce14b6..0267aa8a4f86 100644
--- a/arch/alpha/include/asm/pgtable.h
+++ b/arch/alpha/include/asm/pgtable.h
@@ -268,7 +268,6 @@ extern inline void pud_clear(pud_t * pudp) { pud_val(*pudp) = 0; }
extern inline int pte_write(pte_t pte) { return !(pte_val(pte) & _PAGE_FOW); }
extern inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }
extern inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
-extern inline int pte_special(pte_t pte) { return 0; }
extern inline pte_t pte_wrprotect(pte_t pte) { pte_val(pte) |= _PAGE_FOW; return pte; }
extern inline pte_t pte_mkclean(pte_t pte) { pte_val(pte) &= ~(__DIRTY_BITS); return pte; }
@@ -276,7 +275,6 @@ extern inline pte_t pte_mkold(pte_t pte) { pte_val(pte) &= ~(__ACCESS_BITS); ret
extern inline pte_t pte_mkwrite(pte_t pte) { pte_val(pte) &= ~_PAGE_FOW; return pte; }
extern inline pte_t pte_mkdirty(pte_t pte) { pte_val(pte) |= __DIRTY_BITS; return pte; }
extern inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= __ACCESS_BITS; return pte; }
-extern inline pte_t pte_mkspecial(pte_t pte) { return pte; }
#define PAGE_DIR_OFFSET(tsk,address) pgd_offset((tsk),(address))
diff --git a/arch/alpha/kernel/.gitignore b/arch/alpha/kernel/.gitignore
index c5f676c3c224..bbb90f92d051 100644
--- a/arch/alpha/kernel/.gitignore
+++ b/arch/alpha/kernel/.gitignore
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
vmlinux.lds
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
index da3e10d5f7fe..d17e44c99df9 100644
--- a/arch/alpha/kernel/irq_alpha.c
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -213,32 +213,13 @@ process_mcheck_info(unsigned long vector, unsigned long la_ptr,
* The special RTC interrupt type. The interrupt itself was
* processed by PALcode, and comes in via entInt vector 1.
*/
-
-struct irqaction timer_irqaction = {
- .handler = rtc_timer_interrupt,
- .name = "timer",
-};
-
void __init
-init_rtc_irq(void)
+init_rtc_irq(irq_handler_t handler)
{
irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip,
handle_percpu_irq, "RTC");
- setup_irq(RTC_IRQ, &timer_irqaction);
+ if (!handler)
+ handler = rtc_timer_interrupt;
+ if (request_irq(RTC_IRQ, handler, 0, "timer", NULL))
+ pr_err("Failed to register timer interrupt\n");
}
-
-/* Dummy irqactions. */
-struct irqaction isa_cascade_irqaction = {
- .handler = no_action,
- .name = "isa-cascade"
-};
-
-struct irqaction timer_cascade_irqaction = {
- .handler = no_action,
- .name = "timer-cascade"
-};
-
-struct irqaction halt_switch_irqaction = {
- .handler = no_action,
- .name = "halt-switch"
-};
diff --git a/arch/alpha/kernel/irq_i8259.c b/arch/alpha/kernel/irq_i8259.c
index 5d54c076a8ae..1dcf0d9038fd 100644
--- a/arch/alpha/kernel/irq_i8259.c
+++ b/arch/alpha/kernel/irq_i8259.c
@@ -82,11 +82,6 @@ struct irq_chip i8259a_irq_type = {
void __init
init_i8259a_irqs(void)
{
- static struct irqaction cascade = {
- .handler = no_action,
- .name = "cascade",
- };
-
long i;
outb(0xff, 0x21); /* mask all of 8259A-1 */
@@ -96,7 +91,8 @@ init_i8259a_irqs(void)
irq_set_chip_and_handler(i, &i8259a_irq_type, handle_level_irq);
}
- setup_irq(2, &cascade);
+ if (request_irq(2, no_action, 0, "cascade", NULL))
+ pr_err("Failed to request irq 2 (cascade)\n");
}
diff --git a/arch/alpha/kernel/irq_impl.h b/arch/alpha/kernel/irq_impl.h
index 16f2b0276f3a..fbf21892e66d 100644
--- a/arch/alpha/kernel/irq_impl.h
+++ b/arch/alpha/kernel/irq_impl.h
@@ -21,14 +21,9 @@ extern void isa_no_iack_sc_device_interrupt(unsigned long);
extern void srm_device_interrupt(unsigned long);
extern void pyxis_device_interrupt(unsigned long);
-extern struct irqaction timer_irqaction;
-extern struct irqaction isa_cascade_irqaction;
-extern struct irqaction timer_cascade_irqaction;
-extern struct irqaction halt_switch_irqaction;
-
extern void init_srm_irqs(long, unsigned long);
extern void init_pyxis_irqs(unsigned long);
-extern void init_rtc_irq(void);
+extern void init_rtc_irq(irq_handler_t handler);
extern void common_init_isa_dma(void);
diff --git a/arch/alpha/kernel/irq_pyxis.c b/arch/alpha/kernel/irq_pyxis.c
index a968b10e687d..27070b5bd33e 100644
--- a/arch/alpha/kernel/irq_pyxis.c
+++ b/arch/alpha/kernel/irq_pyxis.c
@@ -107,5 +107,6 @@ init_pyxis_irqs(unsigned long ignore_mask)
irq_set_status_flags(i, IRQ_LEVEL);
}
- setup_irq(16+7, &isa_cascade_irqaction);
+ if (request_irq(16 + 7, no_action, 0, "isa-cascade", NULL))
+ pr_err("Failed to register isa-cascade interrupt\n");
}
diff --git a/arch/alpha/kernel/sys_alcor.c b/arch/alpha/kernel/sys_alcor.c
index e56efd5b855f..ce5430056f65 100644
--- a/arch/alpha/kernel/sys_alcor.c
+++ b/arch/alpha/kernel/sys_alcor.c
@@ -133,7 +133,8 @@ alcor_init_irq(void)
init_i8259a_irqs();
common_init_isa_dma();
- setup_irq(16+31, &isa_cascade_irqaction);
+ if (request_irq(16 + 31, no_action, 0, "isa-cascade", NULL))
+ pr_err("Failed to register isa-cascade interrupt\n");
}
diff --git a/arch/alpha/kernel/sys_cabriolet.c b/arch/alpha/kernel/sys_cabriolet.c
index 10bc46a4ec40..0aa6a27d0e2f 100644
--- a/arch/alpha/kernel/sys_cabriolet.c
+++ b/arch/alpha/kernel/sys_cabriolet.c
@@ -112,7 +112,8 @@ common_init_irq(void (*srm_dev_int)(unsigned long v))
}
common_init_isa_dma();
- setup_irq(16+4, &isa_cascade_irqaction);
+ if (request_irq(16 + 4, no_action, 0, "isa-cascade", NULL))
+ pr_err("Failed to register isa-cascade interrupt\n");
}
#ifndef CONFIG_ALPHA_PC164
diff --git a/arch/alpha/kernel/sys_eb64p.c b/arch/alpha/kernel/sys_eb64p.c
index 5251937ec1b4..1cdfe55fb987 100644
--- a/arch/alpha/kernel/sys_eb64p.c
+++ b/arch/alpha/kernel/sys_eb64p.c
@@ -123,7 +123,8 @@ eb64p_init_irq(void)
}
common_init_isa_dma();
- setup_irq(16+5, &isa_cascade_irqaction);
+ if (request_irq(16 + 5, no_action, 0, "isa-cascade", NULL))
+ pr_err("Failed to register isa-cascade interrupt\n");
}
/*
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
index 8d34cf6e002a..533899a4a1a1 100644
--- a/arch/alpha/kernel/sys_marvel.c
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -397,7 +397,7 @@ marvel_init_pci(void)
static void __init
marvel_init_rtc(void)
{
- init_rtc_irq();
+ init_rtc_irq(NULL);
}
static void
diff --git a/arch/alpha/kernel/sys_miata.c b/arch/alpha/kernel/sys_miata.c
index 6fa07dc5339d..702292af2225 100644
--- a/arch/alpha/kernel/sys_miata.c
+++ b/arch/alpha/kernel/sys_miata.c
@@ -81,8 +81,10 @@ miata_init_irq(void)
init_pyxis_irqs(0x63b0000);
common_init_isa_dma();
- setup_irq(16+2, &halt_switch_irqaction); /* SRM only? */
- setup_irq(16+6, &timer_cascade_irqaction);
+ if (request_irq(16 + 2, no_action, 0, "halt-switch", NULL))
+ pr_err("Failed to register halt-switch interrupt\n");
+ if (request_irq(16 + 6, no_action, 0, "timer-cascade", NULL))
+ pr_err("Failed to register timer-cascade interrupt\n");
}
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
index cd9a112d67ff..32850e45834b 100644
--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -187,10 +187,6 @@ nautilus_machine_check(unsigned long vector, unsigned long la_ptr)
extern void pcibios_claim_one_bus(struct pci_bus *);
-static struct resource irongate_io = {
- .name = "Irongate PCI IO",
- .flags = IORESOURCE_IO,
-};
static struct resource irongate_mem = {
.name = "Irongate PCI MEM",
.flags = IORESOURCE_MEM,
@@ -208,17 +204,19 @@ nautilus_init_pci(void)
struct pci_controller *hose = hose_head;
struct pci_host_bridge *bridge;
struct pci_bus *bus;
- struct pci_dev *irongate;
unsigned long bus_align, bus_size, pci_mem;
unsigned long memtop = max_low_pfn << PAGE_SHIFT;
- int ret;
bridge = pci_alloc_host_bridge(0);
if (!bridge)
return;
+ /* Use default IO. */
pci_add_resource(&bridge->windows, &ioport_resource);
- pci_add_resource(&bridge->windows, &iomem_resource);
+ /* Irongate PCI memory aperture, calculate requred size before
+ setting it up. */
+ pci_add_resource(&bridge->windows, &irongate_mem);
+
pci_add_resource(&bridge->windows, &busn_resource);
bridge->dev.parent = NULL;
bridge->sysdata = hose;
@@ -226,59 +224,49 @@ nautilus_init_pci(void)
bridge->ops = alpha_mv.pci_ops;
bridge->swizzle_irq = alpha_mv.pci_swizzle;
bridge->map_irq = alpha_mv.pci_map_irq;
+ bridge->size_windows = 1;
/* Scan our single hose. */
- ret = pci_scan_root_bus_bridge(bridge);
- if (ret) {
+ if (pci_scan_root_bus_bridge(bridge)) {
pci_free_host_bridge(bridge);
return;
}
-
bus = hose->bus = bridge->bus;
pcibios_claim_one_bus(bus);
- irongate = pci_get_domain_bus_and_slot(pci_domain_nr(bus), 0, 0);
- bus->self = irongate;
- bus->resource[0] = &irongate_io;
- bus->resource[1] = &irongate_mem;
-
pci_bus_size_bridges(bus);
- /* IO port range. */
- bus->resource[0]->start = 0;
- bus->resource[0]->end = 0xffff;
-
- /* Set up PCI memory range - limit is hardwired to 0xffffffff,
- base must be at aligned to 16Mb. */
- bus_align = bus->resource[1]->start;
- bus_size = bus->resource[1]->end + 1 - bus_align;
+ /* Now we've got the size and alignment of PCI memory resources
+ stored in irongate_mem. Set up the PCI memory range: limit is
+ hardwired to 0xffffffff, base must be aligned to 16Mb. */
+ bus_align = irongate_mem.start;
+ bus_size = irongate_mem.end + 1 - bus_align;
if (bus_align < 0x1000000UL)
bus_align = 0x1000000UL;
pci_mem = (0x100000000UL - bus_size) & -bus_align;
+ irongate_mem.start = pci_mem;
+ irongate_mem.end = 0xffffffffUL;
- bus->resource[1]->start = pci_mem;
- bus->resource[1]->end = 0xffffffffUL;
- if (request_resource(&iomem_resource, bus->resource[1]) < 0)
+ /* Register our newly calculated PCI memory window in the resource
+ tree. */
+ if (request_resource(&iomem_resource, &irongate_mem) < 0)
printk(KERN_ERR "Failed to request MEM on hose 0\n");
+ printk(KERN_INFO "Irongate pci_mem %pR\n", &irongate_mem);
+
if (pci_mem < memtop)
memtop = pci_mem;
if (memtop > alpha_mv.min_mem_address) {
free_reserved_area(__va(alpha_mv.min_mem_address),
__va(memtop), -1, NULL);
- printk("nautilus_init_pci: %ldk freed\n",
+ printk(KERN_INFO "nautilus_init_pci: %ldk freed\n",
(memtop - alpha_mv.min_mem_address) >> 10);
}
-
if ((IRONGATE0->dev_vendor >> 16) > 0x7006) /* Albacore? */
IRONGATE0->pci_mem = pci_mem;
pci_bus_assign_resources(bus);
-
- /* pci_common_swizzle() relies on bus->self being NULL
- for the root bus, so just clear it. */
- bus->self = NULL;
pci_bus_add_devices(bus);
}
diff --git a/arch/alpha/kernel/sys_ruffian.c b/arch/alpha/kernel/sys_ruffian.c
index 07830cccabf9..d33074011960 100644
--- a/arch/alpha/kernel/sys_ruffian.c
+++ b/arch/alpha/kernel/sys_ruffian.c
@@ -82,7 +82,8 @@ ruffian_init_rtc(void)
outb(0x31, 0x42);
outb(0x13, 0x42);
- setup_irq(0, &timer_irqaction);
+ if (request_irq(0, rtc_timer_interrupt, 0, "timer", NULL))
+ pr_err("Failed to request irq 0 (timer)\n");
}
static void
diff --git a/arch/alpha/kernel/sys_rx164.c b/arch/alpha/kernel/sys_rx164.c
index a3db719d3c38..4d85eaeb44aa 100644
--- a/arch/alpha/kernel/sys_rx164.c
+++ b/arch/alpha/kernel/sys_rx164.c
@@ -106,7 +106,8 @@ rx164_init_irq(void)
init_i8259a_irqs();
common_init_isa_dma();
- setup_irq(16+20, &isa_cascade_irqaction);
+ if (request_irq(16 + 20, no_action, 0, "isa-cascade", NULL))
+ pr_err("Failed to register isa-cascade interrupt\n");
}
diff --git a/arch/alpha/kernel/sys_sx164.c b/arch/alpha/kernel/sys_sx164.c
index 1ec638a2746a..17cc203176c8 100644
--- a/arch/alpha/kernel/sys_sx164.c
+++ b/arch/alpha/kernel/sys_sx164.c
@@ -54,7 +54,8 @@ sx164_init_irq(void)
else
init_pyxis_irqs(0xff00003f0000UL);
- setup_irq(16+6, &timer_cascade_irqaction);
+ if (request_irq(16 + 6, no_action, 0, "timer-cascade", NULL))
+ pr_err("Failed to register timer-cascade interrupt\n");
}
/*
diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c
index 8e64052811ab..2191bde161fd 100644
--- a/arch/alpha/kernel/sys_wildfire.c
+++ b/arch/alpha/kernel/sys_wildfire.c
@@ -156,10 +156,6 @@ static void __init
wildfire_init_irq_per_pca(int qbbno, int pcano)
{
int i, irq_bias;
- static struct irqaction isa_enable = {
- .handler = no_action,
- .name = "isa_enable",
- };
irq_bias = qbbno * (WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
+ pcano * WILDFIRE_IRQ_PER_PCA;
@@ -198,7 +194,8 @@ wildfire_init_irq_per_pca(int qbbno, int pcano)
irq_set_status_flags(i + irq_bias, IRQ_LEVEL);
}
- setup_irq(32+irq_bias, &isa_enable);
+ if (request_irq(32 + irq_bias, no_action, 0, "isa_enable", NULL))
+ pr_err("Failed to register isa_enable interrupt\n");
}
static void __init
diff --git a/arch/alpha/kernel/syscalls/syscallhdr.sh b/arch/alpha/kernel/syscalls/syscallhdr.sh
index e5b99bd2e5e7..1780e861492a 100644
--- a/arch/alpha/kernel/syscalls/syscallhdr.sh
+++ b/arch/alpha/kernel/syscalls/syscallhdr.sh
@@ -32,5 +32,5 @@ grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
printf "#define __NR_syscalls\t%s\n" "${nxt}"
printf "#endif\n"
printf "\n"
- printf "#endif /* %s */" "${fileguard}"
+ printf "#endif /* %s */\n" "${fileguard}"
) > "$out"
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index 0069360697ee..4d01c392ab14 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -242,7 +242,7 @@ common_init_rtc(void)
outb(0x31, 0x42);
outb(0x13, 0x42);
- init_rtc_irq();
+ init_rtc_irq(NULL);
}
@@ -396,9 +396,7 @@ time_init(void)
if (alpha_using_qemu) {
clocksource_register_hz(&qemu_cs, NSEC_PER_SEC);
init_qemu_clockevent();
-
- timer_irqaction.handler = qemu_timer_interrupt;
- init_rtc_irq();
+ init_rtc_irq(qemu_timer_interrupt);
return;
}
diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index 741e61ef9d3f..c2d7b6d7bac7 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -89,7 +89,7 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
const struct exception_table_entry *fixup;
int si_code = SEGV_MAPERR;
vm_fault_t fault;
- unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+ unsigned int flags = FAULT_FLAG_DEFAULT;
/* As of EV6, a load into $31/$f31 is a prefetch, and never faults
(or is suppressed by the PALcode). Support that for older CPUs
@@ -150,7 +150,7 @@ retry:
the fault. */
fault = handle_mm_fault(vma, address, flags);
- if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+ if (fault_signal_pending(fault, regs))
return;
if (unlikely(fault & VM_FAULT_ERROR)) {
@@ -169,7 +169,7 @@ retry:
else
current->min_flt++;
if (fault & VM_FAULT_RETRY) {
- flags &= ~FAULT_FLAG_ALLOW_RETRY;
+ flags |= FAULT_FLAG_TRIED;
/* No need to up_read(&mm->mmap_sem) as we would
* have already released it in __lock_page_or_retry
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index ff2a393b635c..ff306246d0f8 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -154,7 +154,7 @@ config ARC_CPU_HS
help
Support for ARC HS38x Cores based on ARCv2 ISA
The notable features are:
- - SMP configurations of upto 4 core with coherency
+ - SMP configurations of up to 4 cores with coherency
- Optional L2 Cache and IO-Coherency
- Revised Interrupt Architecture (multiple priorites, reg banks,
auto stack switch, auto regfile save/restore)
@@ -192,7 +192,7 @@ config ARC_SMP_HALT_ON_RESET
help
In SMP configuration cores can be configured as Halt-on-reset
or they could all start at same time. For Halt-on-reset, non
- masters are parked until Master kicks them so they can start of
+ masters are parked until Master kicks them so they can start off
at designated entry point. For other case, all jump to common
entry point and spin wait for Master's signal.
@@ -401,13 +401,61 @@ config ARC_HAS_DIV_REM
default y
config ARC_HAS_ACCL_REGS
- bool "Reg Pair ACCL:ACCH (FPU and/or MPY > 6)"
+ bool "Reg Pair ACCL:ACCH (FPU and/or MPY > 6 and/or DSP)"
default y
help
Depending on the configuration, CPU can contain accumulator reg-pair
(also referred to as r58:r59). These can also be used by gcc as GPR so
kernel needs to save/restore per process
+config ARC_DSP_HANDLED
+ def_bool n
+
+config ARC_DSP_SAVE_RESTORE_REGS
+ def_bool n
+
+choice
+ prompt "DSP support"
+ default ARC_DSP_NONE
+ help
+ Depending on the configuration, CPU can contain DSP registers
+ (ACC0_GLO, ACC0_GHI, DSP_BFLY0, DSP_CTRL, DSP_FFT_CTRL).
+ Bellow is options describing how to handle these registers in
+ interrupt entry / exit and in context switch.
+
+config ARC_DSP_NONE
+ bool "No DSP extension presence in HW"
+ help
+ No DSP extension presence in HW
+
+config ARC_DSP_KERNEL
+ bool "DSP extension in HW, no support for userspace"
+ select ARC_HAS_ACCL_REGS
+ select ARC_DSP_HANDLED
+ help
+ DSP extension presence in HW, no support for DSP-enabled userspace
+ applications. We don't save / restore DSP registers and only do
+ some minimal preparations so userspace won't be able to break kernel
+
+config ARC_DSP_USERSPACE
+ bool "Support DSP for userspace apps"
+ select ARC_HAS_ACCL_REGS
+ select ARC_DSP_HANDLED
+ select ARC_DSP_SAVE_RESTORE_REGS
+ help
+ DSP extension presence in HW, support save / restore DSP registers to
+ run DSP-enabled userspace applications
+
+config ARC_DSP_AGU_USERSPACE
+ bool "Support DSP with AGU for userspace apps"
+ select ARC_HAS_ACCL_REGS
+ select ARC_DSP_HANDLED
+ select ARC_DSP_SAVE_RESTORE_REGS
+ help
+ DSP and AGU extensions presence in HW, support save / restore DSP
+ and AGU registers to run DSP-enabled userspace applications
+endchoice
+
config ARC_IRQ_NO_AUTOSAVE
bool "Disable hardware autosave regfile on interrupts"
default n
diff --git a/arch/arc/boot/.gitignore b/arch/arc/boot/.gitignore
index c4c5fd529c25..675db1494028 100644
--- a/arch/arc/boot/.gitignore
+++ b/arch/arc/boot/.gitignore
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
uImage
diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi
index 1d109b06e7d8..99d3e7175bf7 100644
--- a/arch/arc/boot/dts/axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/axs10x_mb.dtsi
@@ -305,7 +305,6 @@
pgu@17000 {
compatible = "snps,arcpgu";
reg = <0x17000 0x400>;
- encoder-slave = <&adv7511>;
clocks = <&pguclk>;
clock-names = "pxlclk";
memory-region = <&frame_buffer>;
diff --git a/arch/arc/configs/nps_defconfig b/arch/arc/configs/nps_defconfig
index 07f26ed39f02..f7a978dfdf1d 100644
--- a/arch/arc/configs/nps_defconfig
+++ b/arch/arc/configs/nps_defconfig
@@ -21,8 +21,6 @@ CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
CONFIG_ARC_PLAT_EZNPS=y
CONFIG_SMP=y
CONFIG_NR_CPUS=4096
diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig
index 5dd470b6609e..bf39a0091679 100644
--- a/arch/arc/configs/nsimosci_defconfig
+++ b/arch/arc/configs/nsimosci_defconfig
@@ -20,8 +20,6 @@ CONFIG_ISA_ARCOMPACT=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci"
# CONFIG_COMPACTION is not set
CONFIG_NET=y
diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig
index 3532e86f7bff..7121bd71c543 100644
--- a/arch/arc/configs/nsimosci_hs_defconfig
+++ b/arch/arc/configs/nsimosci_hs_defconfig
@@ -19,8 +19,6 @@ CONFIG_PERF_EVENTS=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
CONFIG_ISA_ARCV2=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci_hs"
# CONFIG_COMPACTION is not set
diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig
index d90448bee064..f9863b294a70 100644
--- a/arch/arc/configs/nsimosci_hs_smp_defconfig
+++ b/arch/arc/configs/nsimosci_hs_smp_defconfig
@@ -14,8 +14,6 @@ CONFIG_PERF_EVENTS=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
CONFIG_ISA_ARCV2=y
CONFIG_SMP=y
# CONFIG_ARC_TIMERS_64BIT is not set
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
index 1b505694691e..81f4edec0c2a 100644
--- a/arch/arc/include/asm/Kbuild
+++ b/arch/arc/include/asm/Kbuild
@@ -1,28 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
-generic-y += bugs.h
-generic-y += compat.h
-generic-y += device.h
-generic-y += div64.h
-generic-y += dma-mapping.h
-generic-y += emergency-restart.h
generic-y += extable.h
-generic-y += ftrace.h
-generic-y += hardirq.h
-generic-y += hw_irq.h
-generic-y += irq_regs.h
-generic-y += irq_work.h
generic-y += kvm_para.h
-generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
-generic-y += mmiowb.h
generic-y += parport.h
-generic-y += percpu.h
-generic-y += preempt.h
-generic-y += topology.h
-generic-y += trace_clock.h
generic-y += user.h
-generic-y += vga.h
-generic-y += word-at-a-time.h
-generic-y += xor.h
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index f7e432448e4b..2162023195c5 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -118,6 +118,32 @@
#define ARC_AUX_DPFP_2H 0x304
#define ARC_AUX_DPFP_STAT 0x305
+/*
+ * DSP-related registers
+ * Registers names must correspond to dsp_callee_regs structure fields names
+ * for automatic offset calculation in DSP_AUX_SAVE_RESTORE macros.
+ */
+#define ARC_AUX_DSP_BUILD 0x7A
+#define ARC_AUX_ACC0_LO 0x580
+#define ARC_AUX_ACC0_GLO 0x581
+#define ARC_AUX_ACC0_HI 0x582
+#define ARC_AUX_ACC0_GHI 0x583
+#define ARC_AUX_DSP_BFLY0 0x598
+#define ARC_AUX_DSP_CTRL 0x59F
+#define ARC_AUX_DSP_FFT_CTRL 0x59E
+
+#define ARC_AUX_AGU_BUILD 0xCC
+#define ARC_AUX_AGU_AP0 0x5C0
+#define ARC_AUX_AGU_AP1 0x5C1
+#define ARC_AUX_AGU_AP2 0x5C2
+#define ARC_AUX_AGU_AP3 0x5C3
+#define ARC_AUX_AGU_OS0 0x5D0
+#define ARC_AUX_AGU_OS1 0x5D1
+#define ARC_AUX_AGU_MOD0 0x5E0
+#define ARC_AUX_AGU_MOD1 0x5E1
+#define ARC_AUX_AGU_MOD2 0x5E2
+#define ARC_AUX_AGU_MOD3 0x5E3
+
#ifndef __ASSEMBLY__
#include <soc/arc/aux.h>
diff --git a/arch/arc/include/asm/asserts.h b/arch/arc/include/asm/asserts.h
new file mode 100644
index 000000000000..108f33be6aa5
--- /dev/null
+++ b/arch/arc/include/asm/asserts.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 Synopsys, Inc. (www.synopsys.com)
+ *
+ * Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
+ */
+#ifndef __ASM_ARC_ASSERTS_H
+#define __ASM_ARC_ASSERTS_H
+
+/* Helpers to sanitize config options. */
+
+void chk_opt_strict(char *opt_name, bool hw_exists, bool opt_ena);
+void chk_opt_weak(char *opt_name, bool hw_exists, bool opt_ena);
+
+/*
+ * Check required config option:
+ * - panic in case of OPT enabled but corresponding HW absent.
+ * - warn in case of OPT disabled but corresponding HW exists.
+*/
+#define CHK_OPT_STRICT(opt_name, hw_exists) \
+({ \
+ chk_opt_strict(#opt_name, hw_exists, IS_ENABLED(opt_name)); \
+})
+
+/*
+ * Check optional config option:
+ * - panic in case of OPT enabled but corresponding HW absent.
+*/
+#define CHK_OPT_WEAK(opt_name, hw_exists) \
+({ \
+ chk_opt_weak(#opt_name, hw_exists, IS_ENABLED(opt_name)); \
+})
+
+#endif /* __ASM_ARC_ASSERTS_H */
diff --git a/arch/arc/include/asm/dsp-impl.h b/arch/arc/include/asm/dsp-impl.h
new file mode 100644
index 000000000000..e1aa212ca6eb
--- /dev/null
+++ b/arch/arc/include/asm/dsp-impl.h
@@ -0,0 +1,150 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 Synopsys, Inc. (www.synopsys.com)
+ *
+ * Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
+ */
+#ifndef __ASM_ARC_DSP_IMPL_H
+#define __ASM_ARC_DSP_IMPL_H
+
+#include <asm/dsp.h>
+
+#define DSP_CTRL_DISABLED_ALL 0
+
+#ifdef __ASSEMBLY__
+
+/* clobbers r5 register */
+.macro DSP_EARLY_INIT
+ lr r5, [ARC_AUX_DSP_BUILD]
+ bmsk r5, r5, 7
+ breq r5, 0, 1f
+ mov r5, DSP_CTRL_DISABLED_ALL
+ sr r5, [ARC_AUX_DSP_CTRL]
+1:
+.endm
+
+/* clobbers r10, r11 registers pair */
+.macro DSP_SAVE_REGFILE_IRQ
+#if defined(CONFIG_ARC_DSP_KERNEL)
+ /*
+ * Drop any changes to DSP_CTRL made by userspace so userspace won't be
+ * able to break kernel - reset it to DSP_CTRL_DISABLED_ALL value
+ */
+ mov r10, DSP_CTRL_DISABLED_ALL
+ sr r10, [ARC_AUX_DSP_CTRL]
+
+#elif defined(CONFIG_ARC_DSP_SAVE_RESTORE_REGS)
+ /*
+ * Save DSP_CTRL register and reset it to value suitable for kernel
+ * (DSP_CTRL_DISABLED_ALL)
+ */
+ mov r10, DSP_CTRL_DISABLED_ALL
+ aex r10, [ARC_AUX_DSP_CTRL]
+ st r10, [sp, PT_DSP_CTRL]
+
+#endif
+.endm
+
+/* clobbers r10, r11 registers pair */
+.macro DSP_RESTORE_REGFILE_IRQ
+#if defined(CONFIG_ARC_DSP_SAVE_RESTORE_REGS)
+ ld r10, [sp, PT_DSP_CTRL]
+ sr r10, [ARC_AUX_DSP_CTRL]
+
+#endif
+.endm
+
+#else /* __ASEMBLY__ */
+
+#include <linux/sched.h>
+#include <asm/asserts.h>
+#include <asm/switch_to.h>
+
+#ifdef CONFIG_ARC_DSP_SAVE_RESTORE_REGS
+
+/*
+ * As we save new and restore old AUX register value in the same place we
+ * can optimize a bit and use AEX instruction (swap contents of an auxiliary
+ * register with a core register) instead of LR + SR pair.
+ */
+#define AUX_SAVE_RESTORE(_saveto, _readfrom, _offt, _aux) \
+do { \
+ long unsigned int _scratch; \
+ \
+ __asm__ __volatile__( \
+ "ld %0, [%2, %4] \n" \
+ "aex %0, [%3] \n" \
+ "st %0, [%1, %4] \n" \
+ : \
+ "=&r" (_scratch) /* must be early clobber */ \
+ : \
+ "r" (_saveto), \
+ "r" (_readfrom), \
+ "Ir" (_aux), \
+ "Ir" (_offt) \
+ : \
+ "memory" \
+ ); \
+} while (0)
+
+#define DSP_AUX_SAVE_RESTORE(_saveto, _readfrom, _aux) \
+ AUX_SAVE_RESTORE(_saveto, _readfrom, \
+ offsetof(struct dsp_callee_regs, _aux), \
+ ARC_AUX_##_aux)
+
+static inline void dsp_save_restore(struct task_struct *prev,
+ struct task_struct *next)
+{
+ long unsigned int *saveto = &prev->thread.dsp.ACC0_GLO;
+ long unsigned int *readfrom = &next->thread.dsp.ACC0_GLO;
+
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, ACC0_GLO);
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, ACC0_GHI);
+
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, DSP_BFLY0);
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, DSP_FFT_CTRL);
+
+#ifdef CONFIG_ARC_DSP_AGU_USERSPACE
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, AGU_AP0);
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, AGU_AP1);
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, AGU_AP2);
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, AGU_AP3);
+
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, AGU_OS0);
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, AGU_OS1);
+
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, AGU_MOD0);
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, AGU_MOD1);
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, AGU_MOD2);
+ DSP_AUX_SAVE_RESTORE(saveto, readfrom, AGU_MOD3);
+#endif /* CONFIG_ARC_DSP_AGU_USERSPACE */
+}
+
+#else /* !CONFIG_ARC_DSP_SAVE_RESTORE_REGS */
+#define dsp_save_restore(p, n)
+#endif /* CONFIG_ARC_DSP_SAVE_RESTORE_REGS */
+
+static inline bool dsp_exist(void)
+{
+ struct bcr_generic bcr;
+
+ READ_BCR(ARC_AUX_DSP_BUILD, bcr);
+ return !!bcr.ver;
+}
+
+static inline bool agu_exist(void)
+{
+ struct bcr_generic bcr;
+
+ READ_BCR(ARC_AUX_AGU_BUILD, bcr);
+ return !!bcr.ver;
+}
+
+static inline void dsp_config_check(void)
+{
+ CHK_OPT_STRICT(CONFIG_ARC_DSP_HANDLED, dsp_exist());
+ CHK_OPT_WEAK(CONFIG_ARC_DSP_AGU_USERSPACE, agu_exist());
+}
+
+#endif /* __ASEMBLY__ */
+#endif /* __ASM_ARC_DSP_IMPL_H */
diff --git a/arch/arc/include/asm/dsp.h b/arch/arc/include/asm/dsp.h
new file mode 100644
index 000000000000..202c78e56704
--- /dev/null
+++ b/arch/arc/include/asm/dsp.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 Synopsys, Inc. (www.synopsys.com)
+ *
+ * Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
+ */
+#ifndef __ASM_ARC_DSP_H
+#define __ASM_ARC_DSP_H
+
+#ifndef __ASSEMBLY__
+
+/*
+ * DSP-related saved registers - need to be saved only when you are
+ * scheduled out.
+ * structure fields name must correspond to aux register defenitions for
+ * automatic offset calculation in DSP_AUX_SAVE_RESTORE macros
+ */
+struct dsp_callee_regs {
+ unsigned long ACC0_GLO, ACC0_GHI, DSP_BFLY0, DSP_FFT_CTRL;
+#ifdef CONFIG_ARC_DSP_AGU_USERSPACE
+ unsigned long AGU_AP0, AGU_AP1, AGU_AP2, AGU_AP3;
+ unsigned long AGU_OS0, AGU_OS1;
+ unsigned long AGU_MOD0, AGU_MOD1, AGU_MOD2, AGU_MOD3;
+#endif
+};
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_ARC_DSP_H */
diff --git a/arch/arc/include/asm/entry-arcv2.h b/arch/arc/include/asm/entry-arcv2.h
index 0b8b63d0bec1..ae0aa5323be1 100644
--- a/arch/arc/include/asm/entry-arcv2.h
+++ b/arch/arc/include/asm/entry-arcv2.h
@@ -4,6 +4,7 @@
#define __ASM_ARC_ENTRY_ARCV2_H
#include <asm/asm-offsets.h>
+#include <asm/dsp-impl.h>
#include <asm/irqflags-arcv2.h>
#include <asm/thread_info.h> /* For THREAD_SIZE */
@@ -165,6 +166,8 @@
ST2 r58, r59, PT_r58
#endif
+ /* clobbers r10, r11 registers pair */
+ DSP_SAVE_REGFILE_IRQ
.endm
/*------------------------------------------------------------------------*/
@@ -189,6 +192,9 @@
ld r25, [sp, PT_user_r25]
#endif
+ /* clobbers r10, r11 registers pair */
+ DSP_RESTORE_REGFILE_IRQ
+
#ifdef CONFIG_ARC_HAS_ACCL_REGS
LD2 r58, r59, PT_r58
#endif
diff --git a/arch/arc/include/asm/fpu.h b/arch/arc/include/asm/fpu.h
index 64347250fdf5..006bcf88a7a5 100644
--- a/arch/arc/include/asm/fpu.h
+++ b/arch/arc/include/asm/fpu.h
@@ -43,6 +43,8 @@ extern void fpu_init_task(struct pt_regs *regs);
#endif /* !CONFIG_ISA_ARCOMPACT */
+struct task_struct;
+
extern void fpu_save_restore(struct task_struct *p, struct task_struct *n);
#else /* !CONFIG_ARC_FPU_SAVE_RESTORE */
diff --git a/arch/arc/include/asm/futex.h b/arch/arc/include/asm/futex.h
index 9d0d070e6c22..607d1c16d4dd 100644
--- a/arch/arc/include/asm/futex.h
+++ b/arch/arc/include/asm/futex.h
@@ -75,10 +75,12 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
{
int oldval = 0, ret;
+ if (!access_ok(uaddr, sizeof(u32)))
+ return -EFAULT;
+
#ifndef CONFIG_ARC_HAS_LLSC
preempt_disable(); /* to guarantee atomic r-m-w of futex op */
#endif
- pagefault_disable();
switch (op) {
case FUTEX_OP_SET:
@@ -101,7 +103,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
ret = -ENOSYS;
}
- pagefault_enable();
#ifndef CONFIG_ARC_HAS_LLSC
preempt_enable();
#endif
diff --git a/arch/arc/include/asm/linkage.h b/arch/arc/include/asm/linkage.h
index d9ee43c6b7db..fe19f1d412e7 100644
--- a/arch/arc/include/asm/linkage.h
+++ b/arch/arc/include/asm/linkage.h
@@ -29,6 +29,8 @@
.endm
#define ASM_NL ` /* use '`' to mark new line in macro */
+#define __ALIGN .align 4
+#define __ALIGN_STR __stringify(__ALIGN)
/* annotation for data we want in DCCM - if enabled in .config */
.macro ARCFP_DATA nm
diff --git a/arch/arc/include/asm/page.h b/arch/arc/include/asm/page.h
index 0a32e8cfd074..b0dfed0f12be 100644
--- a/arch/arc/include/asm/page.h
+++ b/arch/arc/include/asm/page.h
@@ -102,7 +102,7 @@ typedef pte_t * pgtable_t;
#define virt_addr_valid(kaddr) pfn_valid(virt_to_pfn(kaddr))
/* Default Permissions for stack/heaps pages (Non Executable) */
-#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+#define VM_DATA_DEFAULT_FLAGS VM_DATA_FLAGS_NON_EXEC
#define WANT_PAGE_VIRTUAL 1
diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h
index ec532d1e0725..0fcea5bad343 100644
--- a/arch/arc/include/asm/processor.h
+++ b/arch/arc/include/asm/processor.h
@@ -14,6 +14,7 @@
#ifndef __ASSEMBLY__
#include <asm/ptrace.h>
+#include <asm/dsp.h>
#include <asm/fpu.h>
#ifdef CONFIG_ARC_PLAT_EZNPS
@@ -31,6 +32,9 @@ struct thread_struct {
unsigned long ksp; /* kernel mode stack pointer */
unsigned long callee_reg; /* pointer to callee regs */
unsigned long fault_address; /* dbls as brkpt holder as well */
+#ifdef CONFIG_ARC_DSP_SAVE_RESTORE_REGS
+ struct dsp_callee_regs dsp;
+#endif
#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
struct arc_fpu fpu;
#endif
diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h
index ba9854ef39e8..2fdb87addadc 100644
--- a/arch/arc/include/asm/ptrace.h
+++ b/arch/arc/include/asm/ptrace.h
@@ -91,6 +91,9 @@ struct pt_regs {
#ifdef CONFIG_ARC_HAS_ACCL_REGS
unsigned long r58, r59; /* ACCL/ACCH used by FPU / DSP MPY */
#endif
+#ifdef CONFIG_ARC_DSP_SAVE_RESTORE_REGS
+ unsigned long DSP_CTRL;
+#endif
/*------- Below list auto saved by h/w -----------*/
unsigned long r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11;
diff --git a/arch/arc/include/asm/switch_to.h b/arch/arc/include/asm/switch_to.h
index aadf65b2b56c..4a3d67989d19 100644
--- a/arch/arc/include/asm/switch_to.h
+++ b/arch/arc/include/asm/switch_to.h
@@ -9,6 +9,7 @@
#ifndef __ASSEMBLY__
#include <linux/sched.h>
+#include <asm/dsp-impl.h>
#include <asm/fpu.h>
#ifdef CONFIG_ARC_PLAT_EZNPS
@@ -24,6 +25,7 @@ struct task_struct *__switch_to(struct task_struct *p, struct task_struct *n);
#define switch_to(prev, next, last) \
do { \
ARC_EZNPS_DP_PREV(prev, next); \
+ dsp_save_restore(prev, next); \
fpu_save_restore(prev, next); \
last = __switch_to(prev, next);\
mb(); \
diff --git a/arch/arc/kernel/.gitignore b/arch/arc/kernel/.gitignore
index c5f676c3c224..bbb90f92d051 100644
--- a/arch/arc/kernel/.gitignore
+++ b/arch/arc/kernel/.gitignore
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
vmlinux.lds
diff --git a/arch/arc/kernel/asm-offsets.c b/arch/arc/kernel/asm-offsets.c
index c783bcd35eb8..0e884036ab74 100644
--- a/arch/arc/kernel/asm-offsets.c
+++ b/arch/arc/kernel/asm-offsets.c
@@ -12,6 +12,7 @@
#include <asm/hardirq.h>
#include <asm/page.h>
+
int main(void)
{
DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
@@ -75,6 +76,9 @@ int main(void)
OFFSET(PT_r58, pt_regs, r58);
OFFSET(PT_r59, pt_regs, r59);
#endif
+#ifdef CONFIG_ARC_DSP_SAVE_RESTORE_REGS
+ OFFSET(PT_DSP_CTRL, pt_regs, DSP_CTRL);
+#endif
return 0;
}
diff --git a/arch/arc/kernel/head.S b/arch/arc/kernel/head.S
index 6f41265f6250..6eb23f1545ee 100644
--- a/arch/arc/kernel/head.S
+++ b/arch/arc/kernel/head.S
@@ -14,6 +14,7 @@
#include <asm/entry.h>
#include <asm/arcregs.h>
#include <asm/cache.h>
+#include <asm/dsp-impl.h>
#include <asm/irqflags.h>
.macro CPU_EARLY_SETUP
@@ -59,6 +60,9 @@
#endif
kflag r5
#endif
+ ; Config DSP_CTRL properly, so kernel may use integer multiply,
+ ; multiply-accumulate, and divide operations
+ DSP_EARLY_INIT
.endm
.section .init.text, "ax",@progbits
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index e1c647490f00..b2b1cb645d9e 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -8,17 +8,18 @@
#include <linux/delay.h>
#include <linux/root_dev.h>
#include <linux/clk.h>
-#include <linux/clk-provider.h>
#include <linux/clocksource.h>
#include <linux/console.h>
#include <linux/module.h>
#include <linux/cpu.h>
+#include <linux/of_clk.h>
#include <linux/of_fdt.h>
#include <linux/of.h>
#include <linux/cache.h>
#include <uapi/linux/mount.h>
#include <asm/sections.h>
#include <asm/arcregs.h>
+#include <asm/asserts.h>
#include <asm/tlb.h>
#include <asm/setup.h>
#include <asm/page.h>
@@ -26,6 +27,7 @@
#include <asm/unwind.h>
#include <asm/mach_desc.h>
#include <asm/smp.h>
+#include <asm/dsp-impl.h>
#define FIX_PTR(x) __asm__ __volatile__(";" : "+r"(x))
@@ -389,11 +391,24 @@ static char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len)
return buf;
}
+void chk_opt_strict(char *opt_name, bool hw_exists, bool opt_ena)
+{
+ if (hw_exists && !opt_ena)
+ pr_warn(" ! Enable %s for working apps\n", opt_name);
+ else if (!hw_exists && opt_ena)
+ panic("Disable %s, hardware NOT present\n", opt_name);
+}
+
+void chk_opt_weak(char *opt_name, bool hw_exists, bool opt_ena)
+{
+ if (!hw_exists && opt_ena)
+ panic("Disable %s, hardware NOT present\n", opt_name);
+}
+
static void arc_chk_core_config(void)
{
struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
- int saved = 0, present = 0;
- char *opt_nm = NULL;
+ int present = 0;
if (!cpu->extn.timer0)
panic("Timer0 is not present!\n");
@@ -425,23 +440,16 @@ static void arc_chk_core_config(void)
*/
if (is_isa_arcompact()) {
- opt_nm = "CONFIG_ARC_FPU_SAVE_RESTORE";
- saved = IS_ENABLED(CONFIG_ARC_FPU_SAVE_RESTORE);
-
/* only DPDP checked since SP has no arch visible regs */
present = cpu->extn.fpu_dp;
+ CHK_OPT_STRICT(CONFIG_ARC_FPU_SAVE_RESTORE, present);
} else {
- opt_nm = "CONFIG_ARC_HAS_ACCL_REGS";
- saved = IS_ENABLED(CONFIG_ARC_HAS_ACCL_REGS);
-
/* Accumulator Low:High pair (r58:59) present if DSP MPY or FPU */
present = cpu->extn_mpy.dsp | cpu->extn.fpu_sp | cpu->extn.fpu_dp;
- }
+ CHK_OPT_STRICT(CONFIG_ARC_HAS_ACCL_REGS, present);
- if (present && !saved)
- pr_warn("Enable %s for working apps\n", opt_nm);
- else if (!present && saved)
- panic("Disable %s, hardware NOT present\n", opt_nm);
+ dsp_config_check();
+ }
}
/*
diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c
index b79886a6cec8..d2999503fb8a 100644
--- a/arch/arc/kernel/troubleshoot.c
+++ b/arch/arc/kernel/troubleshoot.c
@@ -104,8 +104,7 @@ static void show_faulting_vma(unsigned long address)
if (IS_ERR(nm))
nm = "?";
}
- pr_info(" @off 0x%lx in [%s]\n"
- " VMA: 0x%08lx to 0x%08lx\n",
+ pr_info(" @off 0x%lx in [%s] VMA: 0x%08lx to 0x%08lx\n",
vma->vm_start < TASK_UNMAPPED_BASE ?
address : address - vma->vm_start,
nm, vma->vm_start, vma->vm_end);
@@ -120,8 +119,6 @@ static void show_ecr_verbose(struct pt_regs *regs)
unsigned int vec, cause_code;
unsigned long address;
- pr_info("\n[ECR ]: 0x%08lx => ", regs->event);
-
/* For Data fault, this is data address not instruction addr */
address = current->thread.fault_address;
@@ -130,10 +127,10 @@ static void show_ecr_verbose(struct pt_regs *regs)
/* For DTLB Miss or ProtV, display the memory involved too */
if (vec == ECR_V_DTLB_MISS) {
- pr_cont("Invalid %s @ 0x%08lx by insn @ 0x%08lx\n",
+ pr_cont("Invalid %s @ 0x%08lx by insn @ %pS\n",
(cause_code == 0x01) ? "Read" :
((cause_code == 0x02) ? "Write" : "EX"),
- address, regs->ret);
+ address, (void *)regs->ret);
} else if (vec == ECR_V_ITLB_MISS) {
pr_cont("Insn could not be fetched\n");
} else if (vec == ECR_V_MACH_CHK) {
@@ -191,31 +188,31 @@ void show_regs(struct pt_regs *regs)
show_ecr_verbose(regs);
- pr_info("[EFA ]: 0x%08lx\n[BLINK ]: %pS\n[ERET ]: %pS\n",
- current->thread.fault_address,
- (void *)regs->blink, (void *)regs->ret);
-
if (user_mode(regs))
show_faulting_vma(regs->ret); /* faulting code, not data */
- pr_info("[STAT32]: 0x%08lx", regs->status32);
+ pr_info("ECR: 0x%08lx EFA: 0x%08lx ERET: 0x%08lx\n",
+ regs->event, current->thread.fault_address, regs->ret);
+
+ pr_info("STAT32: 0x%08lx", regs->status32);
#define STS_BIT(r, bit) r->status32 & STATUS_##bit##_MASK ? #bit" " : ""
#ifdef CONFIG_ISA_ARCOMPACT
- pr_cont(" : %2s%2s%2s%2s%2s%2s%2s\n",
+ pr_cont(" [%2s%2s%2s%2s%2s%2s%2s]",
(regs->status32 & STATUS_U_MASK) ? "U " : "K ",
STS_BIT(regs, DE), STS_BIT(regs, AE),
STS_BIT(regs, A2), STS_BIT(regs, A1),
STS_BIT(regs, E2), STS_BIT(regs, E1));
#else
- pr_cont(" : %2s%2s%2s%2s\n",
+ pr_cont(" [%2s%2s%2s%2s]",
STS_BIT(regs, IE),
(regs->status32 & STATUS_U_MASK) ? "U " : "K ",
STS_BIT(regs, DE), STS_BIT(regs, AE));
#endif
- pr_info("BTA: 0x%08lx\t SP: 0x%08lx\t FP: 0x%08lx\n",
- regs->bta, regs->sp, regs->fp);
+ pr_cont(" BTA: 0x%08lx\n", regs->bta);
+ pr_info("BLK: %pS\n SP: 0x%08lx FP: 0x%08lx\n",
+ (void *)regs->blink, regs->sp, regs->fp);
pr_info("LPS: 0x%08lx\tLPE: 0x%08lx\tLPC: 0x%08lx\n",
regs->lp_start, regs->lp_end, regs->lp_count);
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index fb86bc3e9b35..92b339c7adba 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -100,7 +100,7 @@ void do_page_fault(unsigned long address, struct pt_regs *regs)
(regs->ecr_cause == ECR_C_PROTV_INST_FETCH))
exec = 1;
- flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+ flags = FAULT_FLAG_DEFAULT;
if (user_mode(regs))
flags |= FAULT_FLAG_USER;
if (write)
@@ -133,29 +133,20 @@ retry:
fault = handle_mm_fault(vma, address, flags);
+ /* Quick path to respond to signals */
+ if (fault_signal_pending(fault, regs)) {
+ if (!user_mode(regs))
+ goto no_context;
+ return;
+ }
+
/*
- * Fault retry nuances
+ * Fault retry nuances, mmap_sem already relinquished by core mm
*/
- if (unlikely(fault & VM_FAULT_RETRY)) {
-
- /*
- * If fault needs to be retried, handle any pending signals
- * first (by returning to user mode).
- * mmap_sem already relinquished by core mm for RETRY case
- */
- if (fatal_signal_pending(current)) {
- if (!user_mode(regs))
- goto no_context;
- return;
- }
- /*
- * retry state machine
- */
- if (flags & FAULT_FLAG_ALLOW_RETRY) {
- flags &= ~FAULT_FLAG_ALLOW_RETRY;
- flags |= FAULT_FLAG_TRIED;
- goto retry;
- }
+ if (unlikely((fault & VM_FAULT_RETRY) &&
+ (flags & FAULT_FLAG_ALLOW_RETRY))) {
+ flags |= FAULT_FLAG_TRIED;
+ goto retry;
}
bad_area:
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 97864aabc2a6..66a04f6f4775 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -3,7 +3,6 @@ config ARM
bool
default y
select ARCH_32BIT_OFF_T
- select ARCH_CLOCKSOURCE_DATA
select ARCH_HAS_BINFMT_FLAT
select ARCH_HAS_DEBUG_VIRTUAL if MMU
select ARCH_HAS_DEVMEM_IS_ALLOWED
@@ -2091,5 +2090,3 @@ source "drivers/firmware/Kconfig"
if CRYPTO
source "arch/arm/crypto/Kconfig"
endif
-
-source "arch/arm/kvm/Kconfig"
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index b70d7debf5ca..f46e18a77645 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1201,23 +1201,49 @@ choice
config STM32F4_DEBUG_UART
bool "Use STM32F4 UART for low-level debug"
- depends on ARCH_STM32
+ depends on MACH_STM32F429 || MACH_STM32F469
select DEBUG_STM32_UART
help
Say Y here if you want kernel low-level debugging support
on STM32F4 based platforms, which default UART is wired on
- USART1.
+ USART1, but another UART instance can be selected by modifying
+ CONFIG_DEBUG_UART_PHYS.
If unsure, say N.
config STM32F7_DEBUG_UART
bool "Use STM32F7 UART for low-level debug"
- depends on ARCH_STM32
+ depends on MACH_STM32F746 || MACH_STM32F769
select DEBUG_STM32_UART
help
Say Y here if you want kernel low-level debugging support
on STM32F7 based platforms, which default UART is wired on
- USART1.
+ USART1, but another UART instance can be selected by modifying
+ CONFIG_DEBUG_UART_PHYS.
+
+ If unsure, say N.
+
+ config STM32H7_DEBUG_UART
+ bool "Use STM32H7 UART for low-level debug"
+ depends on MACH_STM32H743
+ select DEBUG_STM32_UART
+ help
+ Say Y here if you want kernel low-level debugging support
+ on STM32H7 based platforms, which default UART is wired on
+ USART1, but another UART instance can be selected by modifying
+ CONFIG_DEBUG_UART_PHYS.
+
+ If unsure, say N.
+
+ config STM32MP1_DEBUG_UART
+ bool "Use STM32MP1 UART for low-level debug"
+ depends on MACH_STM32MP157
+ select DEBUG_STM32_UART
+ help
+ Say Y here if you want kernel low-level debugging support
+ on STM32MP1 based platforms, wich default UART is wired on
+ UART4, but another UART instance can be selected by modifying
+ CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT.
If unsure, say N.
@@ -1619,6 +1645,9 @@ config DEBUG_UART_PHYS
default 0x3e000000 if DEBUG_BCM_KONA_UART
default 0x3f201000 if DEBUG_BCM2836
default 0x4000e400 if DEBUG_LL_UART_EFM32
+ default 0x40010000 if STM32MP1_DEBUG_UART
+ default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \
+ STM32H7_DEBUG_UART
default 0x40028000 if DEBUG_AT91_SAMV7_USART1
default 0x40081000 if DEBUG_LPC18XX_UART0
default 0x40090000 if DEBUG_LPC32XX
@@ -1713,7 +1742,7 @@ config DEBUG_UART_PHYS
DEBUG_S3C64XX_UART || \
DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
- DEBUG_AT91_UART
+ DEBUG_AT91_UART || DEBUG_STM32_UART
config DEBUG_UART_VIRT
hex "Virtual base address of debug UART"
@@ -1779,6 +1808,7 @@ config DEBUG_UART_VIRT
default 0xfcfe8600 if DEBUG_BCM63XX_UART
default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
default 0xfd883000 if DEBUG_ALPINE_UART0
+ default 0xfe010000 if STM32MP1_DEBUG_UART
default 0xfe017000 if DEBUG_MMP_UART2
default 0xfe018000 if DEBUG_MMP_UART3
default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
@@ -1823,7 +1853,7 @@ config DEBUG_UART_VIRT
DEBUG_S3C64XX_UART || \
DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
- DEBUG_AT91_UART
+ DEBUG_AT91_UART || DEBUG_STM32_UART
config DEBUG_UART_8250_SHIFT
int "Register offset shift for the 8250 debug UART"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index db857d07114f..7d5cd0f85461 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -152,6 +152,7 @@ textofs-$(CONFIG_PM_H1940) := 0x00108000
ifeq ($(CONFIG_ARCH_SA1100),y)
textofs-$(CONFIG_SA1111) := 0x00208000
endif
+textofs-$(CONFIG_ARCH_IPQ40XX) := 0x00208000
textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
textofs-$(CONFIG_ARCH_MESON) := 0x00208000
@@ -278,7 +279,6 @@ core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
core-$(CONFIG_FPE_FASTFPE) += $(patsubst $(srctree)/%,%,$(wildcard $(srctree)/arch/arm/fastfpe/))
core-$(CONFIG_VFP) += arch/arm/vfp/
core-$(CONFIG_XEN) += arch/arm/xen/
-core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/
core-$(CONFIG_VDSO) += arch/arm/vdso/
# If we have a machine-specific directory, then include it in the build.
@@ -307,13 +307,15 @@ endif
ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y)
prepare: stack_protector_prepare
stack_protector_prepare: prepare0
- $(eval KBUILD_CFLAGS += \
+ $(eval SSP_PLUGIN_CFLAGS := \
-fplugin-arg-arm_ssp_per_task_plugin-tso=$(shell \
awk '{if ($$2 == "THREAD_SZ_ORDER") print $$3;}'\
include/generated/asm-offsets.h) \
-fplugin-arg-arm_ssp_per_task_plugin-offset=$(shell \
awk '{if ($$2 == "TI_STACK_CANARY") print $$3;}'\
include/generated/asm-offsets.h))
+ $(eval KBUILD_CFLAGS += $(SSP_PLUGIN_CFLAGS))
+ $(eval GCC_PLUGINS_CFLAGS += $(SSP_PLUGIN_CFLAGS))
endif
all: $(notdir $(KBUILD_IMAGE))
diff --git a/arch/arm/boot/.gitignore b/arch/arm/boot/.gitignore
index ce1c5ff746e7..8c759326baf4 100644
--- a/arch/arm/boot/.gitignore
+++ b/arch/arm/boot/.gitignore
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
Image
zImage
xipImage
diff --git a/arch/arm/boot/compressed/.gitignore b/arch/arm/boot/compressed/.gitignore
index 86b2f5d28240..db05c6ef3e31 100644
--- a/arch/arm/boot/compressed/.gitignore
+++ b/arch/arm/boot/compressed/.gitignore
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
ashldi3.S
bswapsdi2.S
font.c
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index da599c3a1193..9c11e7490292 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -101,7 +101,6 @@ clean-files += piggy_data lib1funcs.S ashldi3.S bswapsdi2.S \
$(libfdt) $(libfdt_hdrs) hyp-stub.S
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
-KBUILD_CFLAGS += $(DISABLE_ARM_SSP_PER_TASK_PLUGIN)
ifeq ($(CONFIG_FUNCTION_TRACER),y)
ORIG_CFLAGS := $(KBUILD_CFLAGS)
@@ -117,7 +116,8 @@ CFLAGS_fdt_ro.o := $(nossp-flags-y)
CFLAGS_fdt_rw.o := $(nossp-flags-y)
CFLAGS_fdt_wip.o := $(nossp-flags-y)
-ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin -I$(obj)
+ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin \
+ -I$(obj) $(DISABLE_ARM_SSP_PER_TASK_PLUGIN)
asflags-y := -DZIMAGE
# Supply kernel BSS size to the decompressor via a linker symbol.
diff --git a/arch/arm/boot/compressed/efi-header.S b/arch/arm/boot/compressed/efi-header.S
index a5983588f96b..62286da318e7 100644
--- a/arch/arm/boot/compress