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2020-06-22KVM: arm64: Fix kvm_reset_vcpu() return code being incorrect with SVESteven Price1-3/+7
If SVE is enabled then 'ret' can be assigned the return value of kvm_vcpu_enable_sve() which may be 0 causing future "goto out" sites to erroneously return 0 on failure rather than -EINVAL as expected. Remove the initialisation of 'ret' and make setting the return value explicit to avoid this situation in the future. Fixes: 9a3cdf26e336 ("KVM: arm64/sve: Allow userspace to enable SVE for vcpus") Cc: stable@vger.kernel.org Reported-by: James Morse <james.morse@arm.com> Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200617105456.28245-1-steven.price@arm.com
2020-06-22KVM: arm64: Annotate hyp NMI-related functions as __always_inlineAlexandru Elisei2-2/+2
The "inline" keyword is a hint for the compiler to inline a function. The functions system_uses_irq_prio_masking() and gic_write_pmr() are used by the code running at EL2 on a non-VHE system, so mark them as __always_inline to make sure they'll always be part of the .hyp.text section. This fixes the following splat when trying to run a VM: [ 47.625273] Kernel panic - not syncing: HYP panic: [ 47.625273] PS:a00003c9 PC:0000ca0b42049fc4 ESR:86000006 [ 47.625273] FAR:0000ca0b42049fc4 HPFAR:0000000010001000 PAR:0000000000000000 [ 47.625273] VCPU:0000000000000000 [ 47.647261] CPU: 1 PID: 217 Comm: kvm-vcpu-0 Not tainted 5.8.0-rc1-ARCH+ #61 [ 47.654508] Hardware name: Globalscale Marvell ESPRESSOBin Board (DT) [ 47.661139] Call trace: [ 47.663659] dump_backtrace+0x0/0x1cc [ 47.667413] show_stack+0x18/0x24 [ 47.670822] dump_stack+0xb8/0x108 [ 47.674312] panic+0x124/0x2f4 [ 47.677446] panic+0x0/0x2f4 [ 47.680407] SMP: stopping secondary CPUs [ 47.684439] Kernel Offset: disabled [ 47.688018] CPU features: 0x240402,20002008 [ 47.692318] Memory Limit: none [ 47.695465] ---[ end Kernel panic - not syncing: HYP panic: [ 47.695465] PS:a00003c9 PC:0000ca0b42049fc4 ESR:86000006 [ 47.695465] FAR:0000ca0b42049fc4 HPFAR:0000000010001000 PAR:0000000000000000 [ 47.695465] VCPU:0000000000000000 ]--- The instruction abort was caused by the code running at EL2 trying to fetch an instruction which wasn't mapped in the EL2 translation tables. Using objdump showed the two functions as separate symbols in the .text section. Fixes: 85738e05dc38 ("arm64: kvm: Unmask PMR before entering guest") Cc: stable@vger.kernel.org Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Acked-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20200618171254.1596055-1-alexandru.elisei@arm.com
2020-06-22KVM: arm64: Simplify PtrAuth alternative patchingMarc Zyngier1-19/+11
We currently decide to execute the PtrAuth save/restore code based on a set of branches that evaluate as (ARM64_HAS_ADDRESS_AUTH_ARCH || ARM64_HAS_ADDRESS_AUTH_IMP_DEF). This can be easily replaced by a much simpler test as the ARM64_HAS_ADDRESS_AUTH capability is exactly this expression. Suggested-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-06-22KVM: arm64: Check HCR_EL2 instead of shadow copy to swap PtrAuth registersMarc Zyngier1-2/+2
When save/restoring PtrAuth registers between host and guest, it is pretty useless to fetch the in-memory state, while we have the right state in the HCR_EL2 system register. Use that instead. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-06-22KVM: arm64: Allow PtrAuth to be enabled from userspace on non-VHE systemsMarc Zyngier1-11/+10
Now that the scene is set for enabling PtrAuth on non-VHE, drop the restrictions preventing userspace from enabling it. Acked-by: Andrew Scull <ascull@google.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-06-22KVM: arm64: Allow ARM64_PTR_AUTH when ARM64_VHE=nMarc Zyngier1-3/+1
We currently prevent PtrAuth from even being built if KVM is selected, but VHE isn't. It is a bit of a pointless restriction, since we also check this at run time (rejecting the enabling of PtrAuth for the vcpu if we're not running with VHE). Just drop this apparently useless restriction. Acked-by: Andrew Scull <ascull@google.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-06-22KVM: arm64: Enable Address Authentication at EL2 if availableMarc Zyngier1-0/+5
While initializing EL2, enable Address Authentication if detected from EL1. We still use the EL1-provided keys though. Acked-by: Andrew Scull <ascull@google.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-06-22arm64: dts: ti: k3-am654-main: Update otap-del-sel valuesFaiz Abbas1-1/+11
According to the latest AM65x Data Manual[1], a different output tap delay value is optimum for a given speed mode. Update these values. [1] http://www.ti.com/lit/gpn/am6526 Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
2020-06-22arm64: dts: ti: k3-j721e-mcu-wakeup: add k3 platforms chipid module nodeGrygorii Strashko1-0/+5
Add DT node for the Texas Instruments K3 Multicore J721E SoC platforms chipid module. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
2020-06-22arm64: dts: ti: k3-am65-wakeup: add k3 platforms chipid module nodeGrygorii Strashko1-0/+5
Add DT node for the Texas Instruments K3 Multicore AM65x SoC platforms chipid module. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
2020-06-21Merge tag 'kbuild-fixes-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuildLinus Torvalds1-1/+1
Pull Kbuild fixes from Masahiro Yamada: - fix -gz=zlib compiler option test for CONFIG_DEBUG_INFO_COMPRESSED - improve cc-option in scripts/Kbuild.include to clean up temp files - improve cc-option in scripts/Kconfig.include for more reliable compile option test - do not copy modules.builtin by 'make install' because it would break existing systems - use 'userprogs' syntax for watch_queue sample * tag 'kbuild-fixes-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: samples: watch_queue: build sample program for target architecture Revert "Makefile: install modules.builtin even if CONFIG_MODULES=n" scripts: Fix typo in headers_install.sh kconfig: unify cc-option and as-option kbuild: improve cc-option to clean up all temporary files Makefile: Improve compressed debug info support detection
2020-06-21arm64: dts: qcom: sm8250: add I2C and SPI nodesDmitry Baryshkov1-0/+1147
Much like SDM845 each serial engine has 4 pins attached. Add all possible I2C and SPI nodes for all 20 serial engines. Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20200606131300.3874987-1-dmitry.baryshkov@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-21arm64: dts: qcom: sm8250: Add TLMM pinctrl nodeBjorn Andersson2-0/+19
Add the TLMM pinctrl node for SM8250 and reserve pins 28-31 and 40-43 on the MTP as firmware does not allow Linux to touch these pins. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20200430181716.3797842-1-bjorn.andersson@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-21arm64: dts: qcom: pm8150x: add thermal alarms and thermal zonesDmitry Baryshkov3-8/+122
Add temperature alarm and thermal zone configuration to all three pm8150 instances. Configuration is largely based on the msm-4.19 tree. These alarms use main adc of the pmic. Separate temperature adc is not supported yet. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20200621192824.2069145-3-dmitry.baryshkov@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-21arm64: dts: qcom: sm8250-mtp: include pmic filesDmitry Baryshkov1-0/+4
Include files describing used PMIC chips, GPIOs, power on, etc nodes. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20200621192824.2069145-2-dmitry.baryshkov@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-21arm64: dts: qcom: pm8009: Add base dts fileDmitry Baryshkov1-0/+37
Add base DTS file for pm8009 along with GPIOs and power-on nodes. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20200621192824.2069145-1-dmitry.baryshkov@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-21arm64: dts: ipq8074: enable sdhci nodeSivaprakash Murugesan2-0/+26
Enable mmc device found on ipq8074 devices Signed-off-by: Sivaprakash Murugesan <sivaprak@codeaurora.org> Link: https://lore.kernel.org/r/1591702511-18571-1-git-send-email-sivaprak@codeaurora.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-21arm64: dts: qcom: sm8150: Add USB and PHY device nodesJack Pham2-0/+113
Add device nodes for the USB3 controller, QMP SS PHY and SNPS HS PHY. Signed-off-by: Jack Pham <jackp@codeaurora.org> Signed-off-by: Wesley Cheng <wcheng@codeaurora.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Tested-by: Vinod Koul <vinod.koul@linaro.org> Link: https://lore.kernel.org/r/1586566362-21450-3-git-send-email-wcheng@codeaurora.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-21arm64: defconfig: Enable the PM8xxx RTC driverGeorgi Djakov1-0/+1
Enable the driver for the real time clock found in the PMICs on various Qualcomm platforms. Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Link: https://lore.kernel.org/r/20200616090324.6976-1-georgi.djakov@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-21arm64: dts: qcom: sm8150: Add thermal zones and throttling supportAmit Kucheria1-0/+811
sm8150 has 27 thermal sensors split across two tsens controllers. Add the thermal zones to expose them and wireup the cpus to throttle their frequencies on crossing passive temperature thresholds. Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> Link: https://lore.kernel.org/r/1cdbebe6f7f69ccd8468a4138b56e8a200289d95.1591684754.git.amit.kucheria@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-21arm64: dts: msm8916: Add interconnect provider DT nodesGeorgi Djakov1-0/+28
Add nodes for the network-on-chip interconnect buses present on MSM8916-based platforms. Tested-by: Stephan Gerhold <stephan@gerhold.net> Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Link: https://lore.kernel.org/r/20200617134515.25229-1-georgi.djakov@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: sc7180: Add WCN3990 WLAN module device nodeRakesh Pillai2-0/+33
Add device node for the ath10k SNOC platform driver probe and add resources required for WCN3990 on sc7180 soc. Signed-off-by: Rakesh Pillai <pillair@codeaurora.org> Link: https://lore.kernel.org/r/1592668635-10894-1-git-send-email-pillair@codeaurora.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: sm8250: add watchdog deviceDmitry Baryshkov1-0/+6
Add on-SoC watchdog device node. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20200604004331.669936-7-dmitry.baryshkov@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: apq8016-sbc: Replace spaces with tabsStephan Gerhold1-35/+36
apq8016-sbc.dtsi uses spaces on some lines instead of tabs. Make this consistent by converting them to tabs. Also remove some redundant comments from the DAI link definitions - this is already visible from the comment block before the "sound" node or the device node entries itself. Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Link: https://lore.kernel.org/r/20200605185916.318494-4-stephan@gerhold.net Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: msm8916: Pull down PDM GPIOs during sleepStephan Gerhold1-1/+1
The original qcom kernel changed the PDM GPIOs to be pull-down during sleep at some point. Reportedly this was done because there was some "leakage at PDM outputs during sleep": https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=0f87e08c1cd3e6484a6f7fb3e74e37340bdcdee0 I cannot say how effective this is, but everything seems to work fine with this change so let's apply the same to mainline just to be sure. Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Link: https://lore.kernel.org/r/20200605185916.318494-3-stephan@gerhold.net Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: msm8916: Replace invalid bias-pull-none propertyStephan Gerhold1-5/+5
msm8916-pins.dtsi specifies "bias-pull-none" for most of the audio pin configurations. This was likely copied from the qcom kernel fork where the same property was used for these audio pins. However, "bias-pull-none" actually does not exist at all - not in mainline and not in downstream. I can only guess that the original intention was to configure "no pull", i.e. bias-disable. Change it to that instead. Fixes: 143bb9ad85b7 ("arm64: dts: qcom: add audio pinctrls") Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Link: https://lore.kernel.org/r/20200605185916.318494-2-stephan@gerhold.net Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: msm8916: Set #address-cells for lpassStephan Gerhold1-0/+3
As of commit 4ff028f6c108 ("ASoC: qcom: lpass-cpu: Make I2S SD lines configurable"), lpass now supports children nodes to configure the MI2S SD lines to use for one of the I2S ports. For example: lpass@7708000 { dai@3 { reg = <MI2S_QUATERNARY>; qcom,playback-sd-lines = <1>; }; }; The "reg" property refers to the DAI number in this case, so we need to set #address-cells and #size-cells appropriately to avoid DTC warnings. Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Link: https://lore.kernel.org/r/20200605185916.318494-1-stephan@gerhold.net Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: lenovo630: Add Modem firmware filesJeffrey Hugo1-0/+5
By specifying the modem firmware files, we can boot the modem subsystem which also gives us wifi. Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com> Link: https://lore.kernel.org/r/20200528185341.4891-1-jeffrey.l.hugo@gmail.com Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: msm8998-clamshell: Fix label on l15 regulatorJeffrey Hugo1-1/+1
The label on the l15 regulator node does not follow the style of the rest of the regulator nodes. Luckily, no one has used the label yet, so lets fix it. Fixes: 2c6d2d3a580a ("arm64: dts: qcom: Add Lenovo Miix 630") Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com> Link: https://lore.kernel.org/r/20200528145135.44269-1-jeffrey.l.hugo@gmail.com Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: msm8998-mtp: Fix label on l15 regulatorJeffrey Hugo1-1/+1
The label on the l15 regulator node does not follow the style of the rest of the regulator nodes. Luckily, no one has used the label yet, so lets fix it. Fixes: 31c1f0e33deb ("arm64: dts: qcom: msm8998: Add RPM and regulators for MTP") Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com> Link: https://lore.kernel.org/r/20200528144814.44143-1-jeffrey.l.hugo@gmail.com Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: sc7180: Move mss node to the right placeStephen Boyd1-51/+51
The modem node has an address of 4080000 and thus should come after tlmm and before gpu. Move the node to the right place to maintainer proper address sort order. Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Reviewed-by: Evan Green <evgreen@chromium.org> Cc: Evan Green <evgreen@chromium.org> Cc: Sibi Sankar <sibis@codeaurora.org> Fixes: e14a15eba89a ("arm64: dts: qcom: sc7180: Add Q6V5 MSS node") Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20200521010337.229177-1-swboyd@chromium.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: defconfig: Enable SDM845 video clock controllerStanimir Varbanov1-0/+1
Enable the build of sdm845 video clock controller by default. Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Link: https://lore.kernel.org/r/20200522102109.3607-1-stanimir.varbanov@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: sm8250: change ufs node name to ufshcJonathan Marek1-1/+1
The ufs-qcom driver checks that the name matches the androidboot.bootdevice parameter provided by the bootloader, which uses the name ufshc. Without this change UFS fails to probe. I think this is broken behavior from the ufs-qcom driver, but using the name ufshc is consistent with dts for sdm845/sm8150/etc. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20200523175232.13721-1-jonathan@marek.ca Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: sm8250: sort nodes by physical addressJonathan Marek1-72/+71
Other dts have nodes sorted by physical address, be consistent with that. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20200523132223.31108-1-jonathan@marek.ca Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: sm8250: rename spmi node to spmi_busJonathan Marek1-1/+1
The pm8150 dtsi files refer to it as spmi_bus, so change it. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20200523132104.31046-1-jonathan@marek.ca [bjorn: Dropped qcom, from node name while we're poking at it] Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-20arm64: dts: qcom: sm8250: use dt-bindings defines for clocksJonathan Marek1-2/+3
Use the dt-bindings defines for qupv3_id_1 node's clocks. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20200523131213.18653-1-jonathan@marek.ca Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-06-19Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds10-57/+63
Pull arm64 fixes from Will Deacon: "Unfortunately, we still have a number of outstanding issues so there will be more fixes to come, but this lot are a good start. - Fix handling of watchpoints triggered by uaccess routines - Fix initialisation of gigantic pages for CMA buffers - Raise minimum clang version for BTI to avoid miscompilation - Fix data race in SVE vector length configuration code - Ensure address tags are ignored in kern_addr_valid() - Dump register state on fatal BTI exception - kexec_file() cleanup to use struct_size() macro" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: hw_breakpoint: Don't invoke overflow handler on uaccess watchpoints arm64: kexec_file: Use struct_size() in kmalloc() arm64: mm: reserve hugetlb CMA after numa_init arm64: bti: Require clang >= 10.0.1 for in-kernel BTI support arm64: sve: Fix build failure when ARM64_SVE=y and SYSCTL=n arm64: pgtable: Clear the GP bit for non-executable kernel pages arm64: mm: reset address tag set by kasan sw tagging arm64: traps: Dump registers prior to panic() in bad_mode() arm64/sve: Eliminate data races on sve_default_vl docs/arm64: Fix typo'd #define in sve.rst arm64: remove TEXT_OFFSET randomization
2020-06-18maccess: rename probe_kernel_address to get_kernel_nofaultChristoph Hellwig1-1/+1
Better describe what this helper does, and match the naming of copy_from_kernel_nofault. Also switch the argument order around, so that it acts and looks like get_user(). Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-18arm64: dts: imx8mm-beacon: Fix voltages on LDO1 and LDO2Adam Ford1-2/+2
LDO1 and LDO2 settings are wrong and case the voltage to go above the maximum level of 2.15V permitted by the SoC to 3.0V. This patch is based on work done on the i.MX8M Mini-EVK which utilizes the same fix. Fixes: 593816fa2f35 ("arm64: dts: imx: Add Beacon i.MX8m-Mini development kit") Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-06-18arm64: dts: ls1028a: add one more thermal zone supportYuantian Tang1-1/+21
There are 2 thermal zones in ls1028a soc. Current dts only includes one. This patch adds the other thermal zone node in dts to enable it. Signed-off-by: Yuantian Tang <andy.tang@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-06-18arm64: hw_breakpoint: Don't invoke overflow handler on uaccess watchpointsWill Deacon1-18/+26
Unprivileged memory accesses generated by the so-called "translated" instructions (e.g. STTR) at EL1 can cause EL0 watchpoints to fire unexpectedly if kernel debugging is enabled. In such cases, the hw_breakpoint logic will invoke the user overflow handler which will typically raise a SIGTRAP back to the current task. This is futile when returning back to the kernel because (a) the signal won't have been delivered and (b) userspace can't handle the thing anyway. Avoid invoking the user overflow handler for watchpoints triggered by kernel uaccess routines, and instead single-step over the faulting instruction as we would if no overflow handler had been installed. (Fixes tag identifies the introduction of unprivileged memory accesses, which exposed this latent bug in the hw_breakpoint code) Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morse <james.morse@arm.com> Fixes: 57f4959bad0a ("arm64: kernel: Add support for User Access Override") Reported-by: Luis Machado <luis.machado@linaro.org> Signed-off-by: Will Deacon <will@kernel.org>
2020-06-18arm64: kexec_file: Use struct_size() in kmalloc()Gustavo A. R. Silva1-2/+1
Make use of the struct_size() helper instead of an open-coded version in order to avoid any potential type mistakes. This code was detected with the help of Coccinelle and, audited and fixed manually. Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200617213407.GA1385@embeddedor Signed-off-by: Will Deacon <will@kernel.org>
2020-06-18arm64: mm: reserve hugetlb CMA after numa_initBarry Song1-5/+10
hugetlb_cma_reserve() is called at the wrong place. numa_init has not been done yet. so all reserved memory will be located at node0. Fixes: cf11e85fc08c ("mm: hugetlb: optionally allocate gigantic hugepages using cma") Signed-off-by: Barry Song <song.bao.hua@hisilicon.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Acked-by: Roman Gushchin <guro@fb.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20200617215828.25296-1-song.bao.hua@hisilicon.com Signed-off-by: Will Deacon <will@kernel.org>
2020-06-18arm64: dts: imx8mn-ddr4-evk: correct ldo1/ldo2 voltage rangeRobin Gong1-2/+2
Correct ldo1 voltage range from wrong high group(3.0V~3.3V) to low group (1.6V~1.9V) because the ldo1 should be 1.8V. Actually, two voltage groups have been supported at bd718x7-regulator driver, hence, just corrrect the voltage range to 1.6V~3.3V. For ldo2@0.8V, correct voltage range too. Otherwise, ldo1 would be kept @3.0V and ldo2@0.9V which violate i.mx8mn datasheet as the below warning log in kernel: [ 0.995524] LDO1: Bringing 1800000uV into 3000000-3000000uV [ 0.999196] LDO2: Bringing 800000uV into 900000-900000uV Fixes: 3e44dd09736d ("arm64: dts: imx8mn-ddr4-evk: Add rohm,bd71847 PMIC support") Cc: stable@vger.kernel.org Signed-off-by: Robin Gong <yibin.gong@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-06-18arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage rangeRobin Gong1-2/+2
Correct ldo1 voltage range from wrong high group(3.0V~3.3V) to low group (1.6V~1.9V) because the ldo1 should be 1.8V. Actually, two voltage groups have been supported at bd718x7-regulator driver, hence, just corrrect the voltage range to 1.6V~3.3V. For ldo2@0.8V, correct voltage range too. Otherwise, ldo1 would be kept @3.0V and ldo2@0.9V which violate i.mx8mm datasheet as the below warning log in kernel: [ 0.995524] LDO1: Bringing 1800000uV into 3000000-3000000uV [ 0.999196] LDO2: Bringing 800000uV into 900000-900000uV Fixes: 78cc25fa265d ("arm64: dts: imx8mm-evk: Add BD71847 PMIC") Cc: stable@vger.kernel.org Signed-off-by: Robin Gong <yibin.gong@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-06-18arm64: dts: imx8mp: add i2c aliasesPeng Fan1-0/+6
The devices could be enumerated properly with aliases. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-06-18arm64: dts: imx8mm: sort the aliasesPeng Fan1-8/+8
Sort the aliases alphabetically. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-06-18arm64: dts: imx8mq: Add ethernet aliasPeng Fan1-0/+1
Add ethernet alias, so bootloader code can use this to find the primary ethernet device, and set the MAC address. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-06-18arm64: dts: imx8mq: Add mmc aliasesPeng Fan1-0/+2
Add mmc aliases for kernel usage Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-06-17maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofaultChristoph Hellwig1-2/+2
Better describe what these functions do. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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