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2019-08-09dt-bindings: arm: amlogic: add bindings for G12B based S922X SoCNeil Armstrong
Add a specific compatible for the Amlogic G12B family based S922X SoC to differentiate with the A311D SoC from the same family. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09arm64: dts: meson: add video decoder entriesMaxime Jourdan
This enables the video decoder for GXBB, GXL and GXM chips Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09arm64: dts: meson-gx: add video decoder entryMaxime Jourdan
Add the base video decoder node compatible with the meson vdec driver, for GX* chips. Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09dt-bindings: media: amlogic,vdec: add default compatibleMaxime Jourdan
The first version of the bindings is missing a generic compatible that is used by the base node (GX), and then extended by the SoC device trees (GXBB, GXL, GXM) Also change the example to use "video-codec" instead of "video-decoder", as the former is the one used in almost all cases when it comes to video decode/encode accelerators. Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09arm64: dts: meson: add ethernet fifo sizesJerome Brunet
If unspecified in DT, the fifo sizes are not automatically detected by the dwmac1000 dma driver and the reported fifo sizes default to 0. Because of this, flow control will be turned off on the device. Add the fifo sizes provided by the datasheets in the SoC in DT so flow control may be enabled if necessary. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09arm64: dts: meson-g12b: add cpus OPP tablesNeil Armstrong
Add the OPP table taken from the HardKernel Odroid-N2 DTS. The Amlogic G12B SoC seems to available in 2 types : - low-speed: Cortex-A73 Cluster up to 1,704GHz - high-speed: Cortex-A73 Cluster up to 2.208GHz The Cortex-A73 Cluster can be clocked up to 1,896GHz for both types. The Vendor Amlogic A311D OPP table are slighly different, with lower voltages than the HardKernel S922X tables but seems to be high-speed type. This adds the conservative OPP table with the S922X higher voltages and the maximum low-speed OPP frequency. The values were tested to be stable on an HardKernel Odroid-N2 board running the arm64 cpuburn at [1] and cycling between all the possible cpufreq translations for both clusters and checking the final frequency using the clock-measurer, script at [2]. [1] https://github.com/ssvb/cpuburn-arm/blob/master/cpuburn-a53.S [2] https://gist.github.com/superna9999/d4de964dbc0f84b7d527e1df2ddea25f Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09arm64: dts: meson-g12a: enable DVFS on G12A boardsNeil Armstrong
Enable DVFS for the U200, SEI520 and X96-Max Amlogic G12A based board by setting the clock, OPP and supply for each CPU cores. The CPU cluster power supply can achieve 0.73V to 1.01V using a PWM output clocked at 800KHz with an inverse duty-cycle. DVFS has been tested by running the arm64 cpuburn at [1] and cycling between all the possible cpufreq translations and checking the final frequency using the clock-measurer, script at [2]. [1] https://github.com/ssvb/cpuburn-arm/blob/master/cpuburn-a53.S [2] https://gist.github.com/superna9999/d4de964dbc0f84b7d527e1df2ddea25f Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09arm64: dts: meson-g12a: add cpus OPP tableNeil Armstrong
Add the OPP table taken from the vendor u200 and u211 DTS. The Amlogic G12A SoC seems to available in 3 types : - low-speed: up to 1,8GHz - mid-speed: up to 1,908GHz - high-speed: up to 2.1GHz And the S905X2 opp voltages are slightly higher than the S905D2 OPP voltages for the low-speed table. This adds the conservative OPP table with the S905X2 higher voltages and the maximum low-speed OPP frequency. The values were tested to be stable on an Amlogic U200 Reference Board, SeiRobotics SEI510 and X96 Max Set-Top-Boxes running the arm64 cpuburn at [1] and cycling between all the possible cpufreq translations and checking the final frequency using the clock-measurer, script at [2]. [1] https://github.com/ssvb/cpuburn-arm/blob/master/cpuburn-a53.S [2] https://gist.github.com/superna9999/d4de964dbc0f84b7d527e1df2ddea25f Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09arm64: dts: meson-g12-common: add pwm_a on GPIOE_2 pinmuxNeil Armstrong
Add the ao_pinctrl subnode for the pwm_a function on GPIOE_2. Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09arm64: dts: move common G12A & G12B modes to meson-g12-common.dtsiNeil Armstrong
To simplify the representation of differences betweem the G12A and G12B SoCs, move the common nodes into a meson-g12-common.dtsi file and express the CPU nodes and differences in meson-g12a.dtsi and meson-g12b.dtsi. This separation will help for DVFS and future Amlogic SM1 Family support. The sd_emmc_a quirk is added in the g12a/g12b since since it's already known the sd_emmc_a controller is fixed in the next SM1 SoC family. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-10kbuild: show hint if subdir-y/m is used to visit module MakefileMasahiro Yamada
Since commit ff9b45c55b26 ("kbuild: modpost: read modules.order instead of $(MODVERDIR)/*.mod"), a module is no longer built in the following pattern: [Makefile] subdir-y := some-module [some-module/Makefile] obj-m := some-module.o You cannot write Makefile this way in upstream because modules.order is not correctly generated. subdir-y is used to descend to a sub-directory that builds tools, device trees, etc. For external modules, the modules order does not matter. So, the Makefile above was known to work. I believe the Makefile should be re-written as follows: [Makefile] obj-m := some-module/ [some-module/Makefile] obj-m := some-module.o However, people will have no idea if their Makefile suddenly stops working. In fact, I received questions from multiple people. Show a warning for a while if obj-m is specified in a Makefile visited by subdir-y or subdir-m. I touched the %/ rule to avoid false-positive warnings for the single target. Cc: Jan Kiszka <jan.kiszka@siemens.com> Cc: Tom Stonecypher <thomas.edwardx.stonecypher@intel.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
2019-08-10kbuild: generate modules.order only in directories visited by obj-y/mMasahiro Yamada
The modules.order files in directories visited by the chain of obj-y or obj-m are merged to the upper-level ones, and become parts of the top-level modules.order. On the other hand, there is no need to generate modules.order in directories visited by subdir-y or subdir-m since they would become orphan anyway. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-08-10kbuild: fix false-positive need-builtin calculationMasahiro Yamada
The current implementation of need-builtin is false-positive, for example, in the following Makefile: obj-m := foo/ obj-y := foo/bar/ ..., where foo/built-in.a is not required. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-08-10kbuild: revive single target %.koMasahiro Yamada
I removed the single target %.ko in commit ff9b45c55b26 ("kbuild: modpost: read modules.order instead of $(MODVERDIR)/*.mod") because the modpost stage does not work reliably. For instance, the module dependency, modversion, etc. do not work if we lack symbol information from the other modules. Yet, some people still want to build only one module in their interest, and it may be still useful if it is used within those limitations. Fixes: ff9b45c55b26 ("kbuild: modpost: read modules.order instead of $(MODVERDIR)/*.mod") Reported-by: Don Brace <don.brace@microsemi.com> Reported-by: Arend Van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-08-09Merge tag 'drm-fixes-2019-08-09' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "Usual fixes roundup. Nothing too crazy or serious, one non-released ioctl is removed in the amdkfd driver. core: - mode parser strncpy fix i915: - GLK DSI escape clock setting - HDCP memleak fix tegra: - one gpiod/of regression fix amdgpu: - fix VCN to handle the latest navi10 firmware - fix for fan control on navi10 - properly handle SMU metrics table on navi10 - fix a resume regression on Stoney - kfd revert a GWS ioctl vmwgfx: - memory leak fix rockchip: - suspend fix" * tag 'drm-fixes-2019-08-09' of git://anongit.freedesktop.org/drm/drm: drm/vmwgfx: fix memory leak when too many retries have occurred Revert "drm/amdkfd: New IOCTL to allocate queue GWS" Revert "drm/amdgpu: fix transform feedback GDS hang on gfx10 (v2)" drm/amdgpu: pin the csb buffer on hw init for gfx v8 drm/rockchip: Suspend DP late drm/i915: Fix wrong escape clock divisor init for GLK drm/i915: fix possible memory leak in intel_hdcp_auth_downstream() drm/modes: Fix unterminated strncpy drm/amd/powerplay: correct navi10 vcn powergate drm/amd/powerplay: honor hw limit on fetching metrics data for navi10 drm/amd/powerplay: Allow changing of fan_control in smu_v11_0 drm/amd/amdgpu/vcn_v2_0: Move VCN 2.0 specific dec ring test to vcn_v2_0 drm/amd/amdgpu/vcn_v2_0: Mark RB commands as KMD commands drm/tegra: Fix gpiod_get_from_of_node() regression
2019-08-09Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fix from Catalin Marinas: "Fix bad_pte warning caused by pte_mkdevmap() not setting PTE_SPECIAL" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: mm: add missing PTE_SPECIAL in pte_mkdevmap on arm64
2019-08-09Merge tag 's390-5.3-5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - Map vdso also for statically linked binaries like all other architectures. - Fix no .bss usage compile-time check to account common objects with the help of binutils size tool. Top level Makefile change acked-by Masahiro. - A fix to make perf happy with _etext symbol type. - Fix dump_pagetables which is broken since p*d_offset implementation change to comply with mm/gup.c expectations. - Revert memory sharing for diag calls in protected virtualization, since this is not required after all. - Couple of other minor code cleanups. * tag 's390-5.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/vdso: map vdso also for statically linked binaries s390/build: use size command to perform empty .bss check kbuild: add OBJSIZE variable for the size tool s390: put _stext and _etext into .text section s390/head64: cleanup unused labels s390/unwind: remove stack recursion warning s390/setup: adjust start_code of init_mm to _text s390/mm: fix dump_pagetables top level page table walking s390/protvirt: avoid memory sharing for diag 308 set/store
2019-08-09Merge tag 'for-linus-20190809' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: - Revert of a bcache patch that caused an oops for some (Coly) - ata rb532 unused warning fix (Gustavo) - AoE kernel crash fix (He) - Error handling fixup for blkdev_get() (Jan) - libata read/write translation and SFF PIO fix (me) - Use after free and error handling fix for O_DIRECT fragments. There's still a nowait + sync oddity in there, we'll nail that start next week. If all else fails, I'll queue a revert of the NOWAIT change. (me) - Loop GFP_KERNEL -> GFP_NOIO deadlock fix (Mikulas) - Two BFQ regression fixes that caused crashes (Paolo) * tag 'for-linus-20190809' of git://git.kernel.dk/linux-block: bcache: Revert "bcache: use sysfs_match_string() instead of __sysfs_match_string()" loop: set PF_MEMALLOC_NOIO for the worker thread bdev: Fixup error handling in blkdev_get() block, bfq: handle NULL return value by bfq_init_rq() block, bfq: move update of waker and woken list to queue freeing block, bfq: reset last_completed_rq_bfqq if the pointed queue is freed block: aoe: Fix kernel crash due to atomic sleep when exiting libata: add SG safety checks in SFF pio transfers libata: have ata_scsi_rw_xlat() fail invalid passthrough requests block: fix O_DIRECT error handling for bio fragments ata: rb532_cf: Fix unused variable warning in rb532_pata_driver_probe
2019-08-09Merge tag 'mmc-v5.3-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: - cavium: Fix DMA support - sdhci-sprd: Fix soft reset when runtime resuming" * tag 'mmc-v5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: cavium: Add the missing dma unmap when the dma has finished. mmc: cavium: Set the correct dma max segment size for mmc_host mmc: sdhci-sprd: Fix the incorrect soft reset operation when runtime resuming
2019-08-09Merge tag 'fbdev-v5.3-rc4' of git://github.com/bzolnier/linuxLinus Torvalds
Pull fbdev fix from Bartlomiej Zolnierkiewicz: "fbdev patches will now go to upstream through drm-misc tree for improved maintainership and better integration testing so update MAINTAINERS file accordingly" * tag 'fbdev-v5.3-rc4' of git://github.com/bzolnier/linux: MAINTAINERS: handle fbdev changes through drm-misc tree
2019-08-09Merge tag 'pwm/for-5.3-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm fix from Thierry Reding: "A single fix for a backlight brightness regression introduced in this merge window" * tag 'pwm/for-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: pwm: Fallback to the static lookup-list when acpi_pwm_get fails
2019-08-09Merge tag 'sound-5.3-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Lots of small fixes at this time since we've received the ASoC fix batch now. - Some coverage in ASoC core mostly for minor issues like NULL checks for DPCM and proper error handling in DAI instantiation - A collection of small device-specific changes in various ASoC codec and platform drivers - OF-tree refcount fixes in a few ASoC drivers - Fixes of memory leaks in the error paths of various ASoC / ALSA drivers - A workaround for a long-standing issue on AMD HD-audio device - Updates of MAINTAINERS, mail addresses, file permission fixups" * tag 'sound-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (38 commits) ALSA: firewire: fix a memory leak bug sound: fix a memory leak bug ALSA: hda - Workaround for crackled sound on AMD controller (1022:1457) ALSA: hiface: fix multiple memory leak bugs ALSA: hda - Don't override global PCM hw info flag ALSA: usb-audio: fix a memory leak bug ASoC: max98373: Remove executable bits ASoC: amd: acp3x: use dma address for acp3x dma driver ASoC: amd: acp3x: use dma_ops of parent device for acp3x dma driver ASoC: max98373: add 88200 and 96000 sampling rate support ASoC: sun4i-i2s: Incorrect SR and WSS computation MAINTAINERS: Update Intel ASoC drivers maintainers ASoC: ti: davinci-mcasp: Correct slot_width posed constraint ASoC: rockchip: Fix mono capture ASoC: Intel: Fix some acpi vs apci typo in somme comments ASoC: ti: davinci-mcasp: Fix clk PDIR handling for i2s master mode ASoC: Fail card instantiation if DAI format setup fails ASoC: SOF: Intel: hda: remove misleading error trace from IRQ thread ASoC: qcom: apq8016_sbc: Fix oops with multiple DAI links ASoC: dapm: fix a memory leak bug ...
2019-08-09Merge tag 'media/v5.3-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fix from Mauro Carvalho Chehab: "A fix at the vivid CEC support" * tag 'media/v5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: media: vivid: fix missing cec adapter name
2019-08-09Merge tag 'pm-5.3-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fix from Rafael Wysocki: "Revert a recent PCI power management change that caused problems to occur on multiple systems (Mika Westerberg)" * tag 'pm-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: Revert "PCI: Add missing link delays required by the PCIe spec"
2019-08-09Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "Fix a number of bugs in the ccp driver" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: ccp - Ignore tag length when decrypting GCM ciphertext crypto: ccp - Add support for valid authsize values less than 16 crypto: ccp - Fix oops by properly managing allocated structures
2019-08-09gfs2: gfs2_walk_metadata fixAndreas Gruenbacher
It turns out that the current version of gfs2_metadata_walker suffers from multiple problems that can cause gfs2_hole_size to report an incorrect size. This will confuse fiemap as well as lseek with the SEEK_DATA flag. Fix that by changing gfs2_hole_walker to compute the metapath to the first data block after the hole (if any), and compute the hole size based on that. Fixes xfstest generic/490. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: Bob Peterson <rpeterso@redhat.com> Cc: stable@vger.kernel.org # v4.18+
2019-08-09Merge tag 'kvmarm-fixes-for-5.3-2' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm fixes for 5.3, take #2 - Fix our system register reset so that we stop writing non-sensical values to them, and track which registers get reset instead. - Sync VMCR back from the GIC on WFI so that KVM has an exact vue of PMR. - Reevaluate state of HW-mapped, level triggered interrupts on enable.
2019-08-09Merge tag 'kvmarm-fixes-for-5.3' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm fixes for 5.3 - A bunch of switch/case fall-through annotation, fixing one actual bug - Fix PMU reset bug - Add missing exception class debug strings
2019-08-09selftests: kvm: Adding config fragmentsNaresh Kamboju
selftests kvm test cases need pre-required kernel configs for the test to get pass. Signed-off-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-08-09KVM: selftests: Update gitignore file for latest changesThomas Huth
The kvm_create_max_vcpus test has been moved to the main directory, and sync_regs_test is now available on s390x, too. Signed-off-by: Thomas Huth <thuth@redhat.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-08-09kvm: remove unnecessary PageReserved checkPaolo Bonzini
The same check is already done in kvm_is_reserved_pfn. Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-08-09MAINTAINERS: handle fbdev changes through drm-misc treeBartlomiej Zolnierkiewicz
fbdev patches will now go to upstream through drm-misc tree (IOW starting with v5.4 merge window fbdev changes will be included in DRM pull request) for improved maintainership and better integration testing. Update MAINTAINERS file accordingly. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-08-09bcache: Revert "bcache: use sysfs_match_string() instead of ↵Coly Li
__sysfs_match_string()" This reverts commit 89e0341af082dbc170019f908846f4a424efc86b. In drivers/md/bcache/sysfs.c:bch_snprint_string_list(), NULL pointer at the end of list is necessary. Remove the NULL from last element of each lists will cause the following panic, [ 4340.455652] bcache: register_cache() registered cache device nvme0n1 [ 4340.464603] bcache: register_bdev() registered backing device sdk [ 4421.587335] bcache: bch_cached_dev_run() cached dev sdk is running already [ 4421.587348] bcache: bch_cached_dev_attach() Caching sdk as bcache0 on set 354e1d46-d99f-4d8b-870b-078b80dc88a6 [ 5139.247950] general protection fault: 0000 [#1] SMP NOPTI [ 5139.247970] CPU: 9 PID: 5896 Comm: cat Not tainted 4.12.14-95.29-default #1 SLE12-SP4 [ 5139.247988] Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 04/18/2019 [ 5139.248006] task: ffff888fb25c0b00 task.stack: ffff9bbacc704000 [ 5139.248021] RIP: 0010:string+0x21/0x70 [ 5139.248030] RSP: 0018:ffff9bbacc707bf0 EFLAGS: 00010286 [ 5139.248043] RAX: ffffffffa7e432e3 RBX: ffff8881c20da02a RCX: ffff0a00ffffff04 [ 5139.248058] RDX: 3f00656863616362 RSI: ffff8881c20db000 RDI: ffffffffffffffff [ 5139.248075] RBP: ffff8881c20db000 R08: 0000000000000000 R09: ffff8881c20da02a [ 5139.248090] R10: 0000000000000004 R11: 0000000000000000 R12: ffff9bbacc707c48 [ 5139.248104] R13: 0000000000000fd6 R14: ffffffffc0665855 R15: ffffffffc0665855 [ 5139.248119] FS: 00007faf253b8700(0000) GS:ffff88903f840000(0000) knlGS:0000000000000000 [ 5139.248137] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5139.248149] CR2: 00007faf25395008 CR3: 0000000f72150006 CR4: 00000000007606e0 [ 5139.248164] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5139.248179] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5139.248193] PKRU: 55555554 [ 5139.248200] Call Trace: [ 5139.248210] vsnprintf+0x1fb/0x510 [ 5139.248221] snprintf+0x39/0x40 [ 5139.248238] bch_snprint_string_list.constprop.15+0x5b/0x90 [bcache] [ 5139.248256] __bch_cached_dev_show+0x44d/0x5f0 [bcache] [ 5139.248270] ? __alloc_pages_nodemask+0xb2/0x210 [ 5139.248284] bch_cached_dev_show+0x2c/0x50 [bcache] [ 5139.248297] sysfs_kf_seq_show+0xbb/0x190 [ 5139.248308] seq_read+0xfc/0x3c0 [ 5139.248317] __vfs_read+0x26/0x140 [ 5139.248327] vfs_read+0x87/0x130 [ 5139.248336] SyS_read+0x42/0x90 [ 5139.248346] do_syscall_64+0x74/0x160 [ 5139.248358] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 5139.248370] RIP: 0033:0x7faf24eea370 [ 5139.248379] RSP: 002b:00007fff82d03f38 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 5139.248395] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007faf24eea370 [ 5139.248411] RDX: 0000000000020000 RSI: 00007faf25396000 RDI: 0000000000000003 [ 5139.248426] RBP: 00007faf25396000 R08: 00000000ffffffff R09: 0000000000000000 [ 5139.248441] R10: 000000007c9d4d41 R11: 0000000000000246 R12: 00007faf25396000 [ 5139.248456] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000fff [ 5139.248892] Code: ff ff ff 0f 1f 80 00 00 00 00 49 89 f9 48 89 cf 48 c7 c0 e3 32 e4 a7 48 c1 ff 30 48 81 fa ff 0f 00 00 48 0f 46 d0 48 85 ff 74 45 <44> 0f b6 02 48 8d 42 01 45 84 c0 74 38 48 01 fa 4c 89 cf eb 0e The simplest way to fix is to revert commit 89e0341af082 ("bcache: use sysfs_match_string() instead of __sysfs_match_string()"). This bug was introduced in Linux v5.2, so this fix only applies to Linux v5.2 is enough for stable tree maintainer. Fixes: 89e0341af082 ("bcache: use sysfs_match_string() instead of __sysfs_match_string()") Cc: stable@vger.kernel.org Cc: Alexandru Ardelean <alexandru.ardelean@analog.com> Reported-by: Peifeng Lin <pflin@suse.com> Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Coly Li <colyli@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-08-09Merge branch 'v5.4/dt' into v5.4/driversJerome Brunet
2019-08-09clk: meson: g12a: expose CPUB clock ID for G12BNeil Armstrong
Expose the CPUB clock id to add DVFS to the second CPU cluster of the Amlogic G12B SoC. Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2019-08-09clk: meson: g12a: add notifiers to handle cpu clock changeNeil Armstrong
In order to implement clock switching for the CLKID_CPU_CLK and CLKID_CPUB_CLK, notifiers are added on specific points of the clock tree : cpu_clk / cpub_clk | \- cpu_clk_dyn | | \- cpu_clk_premux0 | | |- cpu_clk_postmux0 | | | |- cpu_clk_dyn0_div | | | \- xtal/fclk_div2/fclk_div3 | | \- xtal/fclk_div2/fclk_div3 | \- cpu_clk_premux1 | |- cpu_clk_postmux1 | | |- cpu_clk_dyn1_div | | \- xtal/fclk_div2/fclk_div3 | \- xtal/fclk_div2/fclk_div3 \ sys_pll / sys1_pll This for each cluster, a single one for G12A, two for G12B. Each cpu_clk_premux1 tree is marked as read-only and CLK_SET_RATE_NO_REPARENT, to be used as "parking" clock in a safe clock frequency. A notifier is added on each cpu_clk_premux0 to detech when CCF want to change the frequency of the cpu_clk_dyn tree. In this notifier, the cpu_clk_premux1 tree is configured to use the xtal clock and then the cpu_clk_dyn is switch to cpu_clk_premux1 while CCF updates the cpu_clk_premux0 tree. A notifier is added on each sys_pll/sys1_pll to detect when CCF wants to change the PLL clock source of the cpu_clk. In this notifier, the cpu_clk is switched to cpu_clk_dyn while CCF updates the sys_pll/sys1_pll frequency. A third small notifier is added on each cpu_clk / cpub_clk and cpu_clk_dyn, add a small delay at PRE_RATE_CHANGE/POST_RATE_CHANGE to let the other notofiers change propagate before changing the cpu_clk_premux0 and sys_pll clock trees. This notifier set permits switching the cpu_clk / cpub_clk without any glitches and using a safe parking clock while switching between sub-GHz clocks using the cpu_clk_dyn tree. This setup has been tested and validated on the Amlogic G12A and G12B SoCs running the arm64 cpuburn at [1] and cycling between all the possible cpufreq translations of each cluster and checking the final frequency using the clock-measurer, script at [2]. [1] https://github.com/ssvb/cpuburn-arm/blob/master/cpuburn-a53.S [2] https://gist.github.com/superna9999/d4de964dbc0f84b7d527e1df2ddea25f Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2019-08-09clk: meson: add g12a cpu dynamic divider driverNeil Armstrong
Add a clock driver for the cpu dynamic divider, this divider needs to have a flag set before setting the divider value then removed while writing the new value to the register. This drivers implements this behavior and will be used essentially on the Amlogic G12A and G12B SoCs for cpu clock trees. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2019-08-09clk: core: introduce clk_hw_set_parent()Neil Armstrong
Introduce the clk_hw_set_parent() provider call to change parent of a clock by using the clk_hw pointers. This eases the clock reparenting from clock rate notifiers and implementing DVFS with simpler code avoiding the boilerplates functions as __clk_lookup(clk_hw_get_name()) then clk_set_parent(). Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2019-08-09s390/vdso: map vdso also for statically linked binariesHeiko Carstens
s390 does not map the vdso for statically linked binaries, assuming that this doesn't make sense. See commit fc5243d98ac2 ("[S390] arch_setup_additional_pages arguments"). However with glibc commit d665367f596d ("linux: Enable vDSO for static linking as default (BZ#19767)") and commit 5e855c895401 ("s390: Enable VDSO for static linking") the vdso is also used for statically linked binaries - if the kernel would make it available. Therefore map the vdso always, just like all other architectures. Reported-by: Stefan Liebler <stli@linux.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-08-09KVM: arm/arm64: vgic: Reevaluate level sensitive interrupts on enableAlexandru Elisei
A HW mapped level sensitive interrupt asserted by a device will not be put into the ap_list if it is disabled at the VGIC level. When it is enabled again, it will be inserted into the ap_list and written to a list register on guest entry regardless of the state of the device. We could argue that this can also happen on real hardware, when the command to enable the interrupt reached the GIC before the device had the chance to de-assert the interrupt signal; however, we emulate the distributor and redistributors in software and we can do better than that. Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2019-08-09KVM: arm: Don't write junk to CP15 registers on resetMarc Zyngier
At the moment, the way we reset CP15 registers is mildly insane: We write junk to them, call the reset functions, and then check that we have something else in them. The "fun" thing is that this can happen while the guest is running (PSCI, for example). If anything in KVM has to evaluate the state of a CP15 register while junk is in there, bad thing may happen. Let's stop doing that. Instead, we track that we have called a reset function for that register, and assume that the reset function has done something. In the end, the very need of this reset check is pretty dubious, as it doesn't check everything (a lot of the CP15 reg leave outside of the cp15_regs[] array). It may well be axed in the near future. Signed-off-by: Marc Zyngier <maz@kernel.org>
2019-08-09KVM: arm64: Don't write junk to sysregs on resetMarc Zyngier
At the moment, the way we reset system registers is mildly insane: We write junk to them, call the reset functions, and then check that we have something else in them. The "fun" thing is that this can happen while the guest is running (PSCI, for example). If anything in KVM has to evaluate the state of a system register while junk is in there, bad thing may happen. Let's stop doing that. Instead, we track that we have called a reset function for that register, and assume that the reset function has done something. This requires fixing a couple of sysreg refinition in the trap table. In the end, the very need of this reset check is pretty dubious, as it doesn't check everything (a lot of the sysregs leave outside of the sys_regs[] array). It may well be axed in the near future. Tested-by: Zenghui Yu <yuzenghui@huawei.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2019-08-09Merge tag 'drm-intel-fixes-2019-08-08' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes drm/i915 fixes for v5.3-rc4: - Fix GLK DSI escape clock setting - Fix a memleak on HDCP revoked Ksv error path Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87pnlghz79.fsf@intel.com
2019-08-09Merge tag 'drm-misc-fixes-2019-08-08' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes drm-misc-fixes for v5.3-rc4: - Suspend fix for rockchip - Fix unterminated strncpy cmdline mode parser Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ace294a6-6bb2-d9b1-695d-3260e1d60831@linux.intel.com
2019-08-09Merge branch 'vmwgfx-fixes-5.3' of ↵Dave Airlie
git://people.freedesktop.org/~thomash/linux into drm-fixes One single memory leak fix. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Hellstrom "VMware" <thomas@shipmail.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190808094615.31040-1-thomas@shipmail.org
2019-08-08dt-bindings: riscv: fix the schema compatible string for the HiFive ↵Paul Walmsley
Unleashed board The YAML binding document for SiFive boards has an incorrect compatible string for the HiFive Unleashed board. Change it to match the name of the board on the SiFive web site: https://www.sifive.com/boards/hifive-unleashed which also matches the contents of the board DT data file: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts#n13 Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> Acked-by: Rob Herring <robh@kernel.org>
2019-08-08dt-bindings: riscv: remove obsolete cpus.txtPaul Walmsley
Remove the now-obsolete riscv/cpus.txt DT binding document, since we are using YAML binding documentation instead. While doing so, transfer the explanatory text about 'harts' (with some edits) into the YAML file, at Rob's request. Link: https://lore.kernel.org/linux-riscv/CAL_JsqJs6MtvmuyAknsUxQymbmoV=G+=JfS1PQj9kNHV7fjC9g@mail.gmail.com/ Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> Cc: Rob Herring <robh@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org>
2019-08-08RISC-V: Remove udivdi3Palmer Dabbelt
This should never have landed in the first place: it was added as part of 64-bit divide support for 32-bit systems, but the kernel doesn't allow this sort of division. I must have forgotten to remove it. This patch removes the support. Since this routine only worked on 64-bit platforms but was only built on 32-bit platforms, it's essentially just nonsense anyway. Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Acked-by: Nicolas Pitre <nico@fluxnic.net> Link: https://lore.kernel.org/linux-riscv/nycvar.YSQ.7.76.1908061413360.19480@knanqh.ubzr/T/#t Reported-by: Eric Lin <tesheng@andestech.com> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-08-08riscv: delay: use do_div() instead of __udivdi3()Paul Walmsley
In preparation for removing __udivdi3() from the RISC-V architecture-specific files, convert its one user to use do_div(). This avoids breaking the RV32 build after __udivdi3() is removed. This second version removes the assignment of the remainder to an unused temporary variable. Thanks to Nicolas Pitre <nico@fluxnic.net> for the suggestion. Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> Cc: Nicolas Pitre <nico@fluxnic.net>
2019-08-08dt-bindings: Update the riscv,isa string descriptionAtish Patra
Since the RISC-V specification states that ISA description strings are case-insensitive, there's no functional difference between mixed-case, upper-case, and lower-case ISA strings. Thus, to simplify parsing, specify that the letters present in "riscv,isa" must be all lowercase. Suggested-by: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
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