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2023-02-22mfd: twl4030-power: Drop empty platform remove functionUwe Kleine-König
A remove callback just returning 0 is equivalent to no remove callback at all. So drop the useless function. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221212214352.3776110-1-u.kleine-koenig@pengutronix.de
2023-02-22mfd: twl: Fix TWL6032 phy vbus detectionAndreas Kemnade
TWL6032 has a few charging registers prepended before the charging registers the TWL6030 has. To be able to use common register defines declare the additional registers as additional module. At the moment this affects the access to CHARGERUSB_CTRL1 in phy-twl6030-usb. Without this patch, it is accessing the wrong register on TWL6032. The consequence is that presence of Vbus is not reported. Cc: Bin Liu <b-liu@ti.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221208215723.217557-1-andreas@kemnade.info
2023-02-22mfd: pcf50633-adc: Fix potential memleak in pcf50633_adc_async_read()Qiheng Lin
`req` is allocated in pcf50633_adc_async_read(), but adc_enqueue_request() could fail to insert the `req` into queue. We need to check the return value and free it in the case of failure. Fixes: 08c3e06a5eb2 ("mfd: PCF50633 adc driver") Signed-off-by: Qiheng Lin <linqiheng@huawei.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221208061555.8776-1-linqiheng@huawei.com
2023-02-22MAINTAINERS: Move MFD from a Supported to Maintaied stateLee Jones
No one is funding MFD maintenance. S: *Status*, one of the following: Supported: Someone is actually paid to look after this. Maintained: Someone actually looks after it. Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221206105038.124613-1-lee@kernel.org
2023-02-22dt-bindings: mfd: cros-ec: Add compatible string for UART supportBhanu Prakash Maiya
Add a compatible string to support the UART implementation of the cros ec interface. The driver does not support the reg and interrupt properties, so exempt them from being required for UART compatible nodes. Signed-off-by: Bhanu Prakash Maiya <bhanumaiya@chromium.org> Co-developed-by: Mark Hasemeyer <markhas@chromium.org> Signed-off-by: Mark Hasemeyer <markhas@chromium.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221207104005.v10.2.I9e018ecb8bdf341648cb64417085978ff0d22a46@changeid
2023-02-22mfd: Use sysfs_emit() to instead of scnprintf()ye xingchen
Follow the advice of the Documentation/filesystems/sysfs.rst and show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/202212021528368292334@zte.com.cn
2023-02-22mfd: cs5535: Don't build on UMLRandy Dunlap
The cs5535-mfd driver uses CPU-specific data that is not available for ARCH=um builds, so don't allow it to be built for UML. Prevents these build errors: In file included from ../arch/x86/include/asm/olpc.h:7, from ../drivers/mfd/cs5535-mfd.c:17: ../arch/x86/include/asm/geode.h: In function ‘is_geode_gx’: ../arch/x86/include/asm/geode.h:16:31: error: ‘struct cpuinfo_um’ has no member named ‘x86_vendor’ 16 | return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) && ../arch/x86/include/asm/geode.h:16:46: error: ‘X86_VENDOR_NSC’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’? 16 | return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) && ../arch/x86/include/asm/geode.h:17:31: error: ‘struct cpuinfo_um’ has no member named ‘x86’ 17 | (boot_cpu_data.x86 == 5) && ../arch/x86/include/asm/geode.h:18:31: error: ‘struct cpuinfo_um’ has no member named ‘x86_model’ 18 | (boot_cpu_data.x86_model == 5)); ../arch/x86/include/asm/geode.h: In function ‘is_geode_lx’: ../arch/x86/include/asm/geode.h:23:31: error: ‘struct cpuinfo_um’ has no member named ‘x86_vendor’ 23 | return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && ../arch/x86/include/asm/geode.h:23:46: error: ‘X86_VENDOR_AMD’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’? 23 | return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && ../arch/x86/include/asm/geode.h:24:31: error: ‘struct cpuinfo_um’ has no member named ‘x86’ 24 | (boot_cpu_data.x86 == 5) && ../arch/x86/include/asm/geode.h:25:31: error: ‘struct cpuinfo_um’ has no member named ‘x86_model’ 25 | (boot_cpu_data.x86_model == 10)); Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221201012541.11809-1-rdunlap@infradead.org
2023-02-22mfd: axp20x: Fix order of pek rise and fall eventsAren Moynihan
The power button can get "stuck" if the rising edge and falling edge irq are read in the same pass. This can often be triggered when resuming from suspend if the power button is released before the kernel handles the interrupt. Swapping the order of the rise and fall events makes sure that the press event is handled first, which prevents this situation. Signed-off-by: Aren Moynihan <aren@peacevolution.org> Reviewed-by: Samuel Holland <samuel@sholland.org> Tested-by: Samuel Holland <samuel@sholland.org> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221208220225.635414-1-aren@peacevolution.org
2023-02-22dt-bindings: mfd: qcom,spmi-pmic: Document PMICs bundled with SM8550Neil Armstrong
Document compatible for the pm8550, pm8550b, pm8550ve, pm8550vs, pmk8550. pm8010 & pmr735d SPMI PMICs Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221114-narmstrong-sm8550-upstream-spmi-v2-1-b839bf2d558a@linaro.org
2023-02-22mfd: rk808: Re-add rk808-clkout to RK818Tom Fitzhenry
Fixes RK818 (e.g. on Pinephone Pro) to register its clock, without which dependent devices (e.g. wifi/BT, via sdio-wifi-pwrseq) fail to probe. This line was removed in commit 3633daacea2e ("mfd: rk808: Permit having multiple PMIC instances"), but only from RK818. Fixes: 3633daacea2e ("mfd: rk808: Permit having multiple PMIC instances") Signed-off-by: Tom Fitzhenry <tom@tom-fitzhenry.me.uk> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230102111147.2580861-1-tom@tom-fitzhenry.me.uk
2023-02-22Merge tags 'ib-mfd-extcon-i2c-v6.3' and 'ib-mfd-fpga-hwmon-v6.3-1' into ↵Lee Jones
ibs-for-mfd-merged Immutable branch between MFD, Extcon and I2C due for the v6.3 merge window Immutable branch between MFD, FPGA and HWMON due for the v6.3 merge window
2023-02-22powerpc/pseries: Avoid hcall in plpks_is_available() on non-pseriesRussell Currey
plpks_is_available() can be called on any platform via kexec but calls _plpks_get_config() which makes a hcall, which will only work on pseries. Fix this by returning early in plpks_is_available() if hcalls aren't possible. Fixes: 119da30d037d ("powerpc/pseries: Expose PLPKS config values, support additional fields") Reported-by: Murphy Zhou <jencce.kernel@gmail.com> Signed-off-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20230222021708.146257-1-ruscur@russell.cc
2023-02-21Merge tag 'net-next-6.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
2023-02-21Merge tag 'v6.3-p1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto update from Herbert Xu: "API: - Use kmap_local instead of kmap_atomic - Change request callback to take void pointer - Print FIPS status in /proc/crypto (when enabled) Algorithms: - Add rfc4106/gcm support on arm64 - Add ARIA AVX2/512 support on x86 Drivers: - Add TRNG driver for StarFive SoC - Delete ux500/hash driver (subsumed by stm32/hash) - Add zlib support in qat - Add RSA support in aspeed" * tag 'v6.3-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (156 commits) crypto: x86/aria-avx - Do not use avx2 instructions crypto: aspeed - Fix modular aspeed-acry crypto: hisilicon/qm - fix coding style issues crypto: hisilicon/qm - update comments to match function crypto: hisilicon/qm - change function names crypto: hisilicon/qm - use min() instead of min_t() crypto: hisilicon/qm - remove some unused defines crypto: proc - Print fips status crypto: crypto4xx - Call dma_unmap_page when done crypto: octeontx2 - Fix objects shared between several modules crypto: nx - Fix sparse warnings crypto: ecc - Silence sparse warning tls: Pass rec instead of aead_req into tls_encrypt_done crypto: api - Remove completion function scaffolding tls: Remove completion function scaffolding tipc: Remove completion function scaffolding net: ipv6: Remove completion function scaffolding net: ipv4: Remove completion function scaffolding net: macsec: Remove completion function scaffolding dm: Remove completion function scaffolding ...
2023-02-21Merge tag 'platform-drivers-x86-v6.3-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: - AMD PMC: Improvements to aid s2idle debugging - Dell WMI-DDV: hwmon support - INT3472 camera sensor power-management: Improve privacy LED support - Intel VSEC: Base TPMI (Topology Aware Register and PM Capsule Interface) support - Mellanox: SN5600 and Nvidia L1 switch support - Microsoft Surface Support: Various cleanups + code improvements - tools/intel-speed-select: Various improvements - Miscellaneous other cleanups / fixes * tag 'platform-drivers-x86-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (80 commits) platform/x86: nvidia-wmi-ec-backlight: Add force module parameter platform/x86/amd/pmf: Add depends on CONFIG_POWER_SUPPLY platform/x86: dell-ddv: Prefer asynchronous probing platform/x86: dell-ddv: Add hwmon support Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces platform: mellanox: mlx-platform: Move bus shift assignment out of the loop platform: mellanox: mlx-platform: Add mux selection register to regmap platform_data/mlxreg: Add field with mapped resource address platform/mellanox: mlxreg-hotplug: Allow more flexible hotplug events configuration platform: mellanox: Extend all systems with I2C notification callback platform: mellanox: Split logic in init and exit flow platform: mellanox: Split initialization procedure platform: mellanox: Introduce support of new Nvidia L1 switch platform: mellanox: Introduce support for next-generation 800GB/s switch platform: mellanox: Cosmetic changes - rename to more common name platform: mellanox: Change "reset_pwr_converter_fail" attribute platform: mellanox: Introduce support for rack manager switch MAINTAINERS: dell-wmi-sysman: drop Divya Bharathi x86/platform/uv: Make kobj_type structure constant platform/x86: think-lmi: Make kobj_type structure constant ...
2023-02-21riscv: mm: hugetlb: Enable ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAPGuo Ren
Add HVO support for RISC-V; see commit 6be24bed9da3 ("mm: hugetlb: introduce a new config HUGETLB_PAGE_FREE_VMEMMAP"). This patch is similar to commit 1e63ac088f20 ("arm64: mm: hugetlb: enable HUGETLB_PAGE_FREE_VMEMMAP for arm64"), and riscv's motivation is the same as arm64. The current riscv was ready to enable HVO after fixup, ref commit d33deda095d3 ("riscv/mm: hugepage's PG_dcache_clean flag is only set in head page"). See Documentation/mm/vmemmap_dedup.rst for more details. The HugeTLB VmemmapvOptimization (HVO) defaults to off in Kconfig. Here is the riscv test log: cat /proc/sys/vm/hugetlb_optimize_vmemmap echo 8 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages mount -t hugetlbfs none test/ -o pagesize=2048k <Try some simple hugetlb test in test dir, no problem found.> Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Guo Ren <guoren@kernel.org> Link: https://lore.kernel.org/linux-riscv/1F5AF29D-708A-483B-A29F-CAEE6F554866@linux.dev/ Acked-by: Muchun Song <songmuchun@bytedance.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20230201015259.3222524-1-guoren@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21Merge tag 'tag-chrome-platform-for-v6.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux Pull chrome platform updates from Tzung-Bi Shih: "New drivers: - cros_ec_uart for ChromeOS EC protocol over UART - cros_typec_vdm for USB PD Vendor Defined Message Improvements: - Preserve logs as much as possible when EC panics - Shutdown to refrain from potential HW damages when EC panics Fixes: - Fix DP_PORT_VDO to include DP_CAP_RECEPTACLE - Fix a lockdep false positive Cleanups: - Use sysfs_emit*() instead of scnprintf() - Use asm instead of asm-generic for unaligned.h Misc: - Rename module name from cros_ec_typec to cros-ec-typec - Minor fixes" * tag 'tag-chrome-platform-for-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: (34 commits) platform/chrome: cros_ec_typec: Fix spelling mistake platform/chrome: cros_typec_vdm: Add Attention support platform/chrome: cros_ec: Add VDM attention headers platform/chrome: cros_typec_vdm: Fix VDO copy platform/chrome: cros_ec_typec: allow deferred probe of switch handles platform/chrome: cros_ec_proto: remove big stub objects from stack platform/chrome: cros_ec_uart: fix negative type promoted to high platform/chrome: cros_ec: Use per-device lockdep key platform/chrome: fix kernel-doc warnings for cros_ec_command platform/chrome: fix kernel-doc warning for last_resume_result platform/chrome: fix kernel-doc warning for suspend_timeout_ms platform/chrome: fix kernel-doc warnings for panic notifier platform/chrome: cros_ec_lpc: initialize the buf variable platform/chrome: cros_ec: Fix panic notifier registration platform/chrome: cros_typec_switch: Check for retimer flag platform/chrome: cros_typec_switch: Use fwnode* prop check platform/chrome: cros_typec_vdm: Add VDM send support platform/chrome: cros_typec_vdm: Add VDM reply support platform/chrome: cros_ec_typec: Add initial VDM support platform/chrome: cros_ec_typec: Alter module name with hyphens ...
2023-02-21riscv: Add header include guards to insn.hLiao Chang
Add header include guards to insn.h to prevent repeating declaration of any identifiers in insn.h. Fixes: edde5584c7ab ("riscv: Add SW single-step support for KDB") Signed-off-by: Liao Chang <liaochang1@huawei.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Fixes: c9c1af3f186a ("RISC-V: rename parse_asm.h to insn.h") Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230129094242.282620-1-liaochang1@huawei.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21Merge patch series "riscv: Dump faulting instructions in oops handler"Palmer Dabbelt
Björn Töpel <bjorn@kernel.org> says: From: Björn Töpel <bjorn@rivosinc.com> RISC-V does not dump faulting instructions in the oops handler. This series adds "Code:" dumps to the oops output together with scripts/decodecode support. * b4-shazam-merge: scripts/decodecode: Add support for RISC-V riscv: Add instruction dump to RISC-V splats Link: https://lore.kernel.org/r/20230119074738.708301-1-bjorn@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv: alternative: proceed one more instruction for auipc/jalr pairJisheng Zhang
If we patched auipc + jalr pair, we'd better proceed one more instruction. Andrew pointed out "There's not a problem now, since we're only adding a fixup for jal, not jalr, but we should future-proof this and there's no reason to revisit an already fixed-up instruction anyway." Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Suggested-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20230115162811.3146-1-jszhang@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21Merge patch series "riscv: improve link and support ARCH_WANT_LD_ORPHAN_WARN"Palmer Dabbelt
Jisheng Zhang <jszhang@kernel.org> says: This series tries to improve link time handling of riscv: patch1 adds the missing RUNTIME_DISCARD_EXIT as suggested by Masahiro. Similar as other architectures such as x86, arm64 and so on, enable ARCH_WANT_LD_ORPHAN_WARN to enable linker orphan warnings to prevent from missing any new sections in future. So the following two patches are preparation ones, and the last patch finally selects ARCH_WANT_LD_ORPHAN_WARN * b4-shazam-merge: riscv: select ARCH_WANT_LD_ORPHAN_WARN for !XIP_KERNEL riscv: vmlinux.lds.S: explicitly catch .init.bss sections from EFI stub riscv: vmlinux.lds.S: explicitly catch .riscv.attributes sections riscv: vmlinux.lds.S: explicitly catch .rela.dyn symbols riscv: lds: define RUNTIME_DISCARD_EXIT Link: https://lore.kernel.org/r/20230119155417.2600-1-jszhang@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv: Avoid enabling interrupts in die()Mattias Nissler
While working on something else, I noticed that the kernel would start accepting interrupts again after crashing in an interrupt handler. Since the kernel is already in inconsistent state, enabling interrupts is dangerous and opens up risk of kernel state deteriorating further. Interrupts do get enabled via what looks like an unintended side effect of spin_unlock_irq, so switch to the more cautious spin_lock_irqsave/spin_unlock_irqrestore instead. Fixes: 76d2a0493a17 ("RISC-V: Init and Halt Code") Signed-off-by: Mattias Nissler <mnissler@rivosinc.com> Reviewed-by: Björn Töpel <bjorn@kernel.org> Link: https://lore.kernel.org/r/20230215144828.3370316-1-mnissler@rivosinc.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv, mm: Perform BPF exhandler fixup on page faultBjörn Töpel
Commit 21855cac82d3 ("riscv/mm: Prevent kernel module to access user memory without uaccess routines") added early exits/deaths for page faults stemming from accesses to user-space without using proper uaccess routines (where sstatus.SUM is set). Unfortunatly, this is too strict for some BPF programs, which relies on BPF exhandler fixups. These BPF programs loads "BTF pointers". A BTF pointers could either be a valid kernel pointer or NULL, but not a userspace address. Resolve the problem by calling the fixup handler in the early exit path. Fixes: 21855cac82d3 ("riscv/mm: Prevent kernel module to access user memory without uaccess routines") Signed-off-by: Björn Töpel <bjorn@rivosinc.com> Link: https://lore.kernel.org/r/20230214162515.184827-1-bjorn@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21RISC-V: take text_mutex during alternative patchingConor Dooley
Guenter reported a splat during boot, that Samuel pointed out was the lockdep assertion failing in patch_insn_write(): WARNING: CPU: 0 PID: 0 at arch/riscv/kernel/patch.c:63 patch_insn_write+0x222/0x2f6 epc : patch_insn_write+0x222/0x2f6 ra : patch_insn_write+0x21e/0x2f6 epc : ffffffff800068c6 ra : ffffffff800068c2 sp : ffffffff81803df0 gp : ffffffff81a1ab78 tp : ffffffff81814f80 t0 : ffffffffffffe000 t1 : 0000000000000001 t2 : 4c45203a76637369 s0 : ffffffff81803e40 s1 : 0000000000000004 a0 : 0000000000000000 a1 : ffffffffffffffff a2 : 0000000000000004 a3 : 0000000000000000 a4 : 0000000000000001 a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000052464e43 s2 : ffffffff80b4889c s3 : 000000000000082c s4 : ffffffff80b48828 s5 : 0000000000000828 s6 : ffffffff8131a0a0 s7 : 0000000000000fff s8 : 0000000008000200 s9 : ffffffff8131a520 s10: 0000000000000018 s11: 000000000000000b t3 : 0000000000000001 t4 : 000000000000000d t5 : ffffffffd8180000 t6 : ffffffff81803bc8 status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003 [<ffffffff800068c6>] patch_insn_write+0x222/0x2f6 [<ffffffff80006a36>] patch_text_nosync+0xc/0x2a [<ffffffff80003b86>] riscv_cpufeature_patch_func+0x52/0x98 [<ffffffff80003348>] _apply_alternatives+0x46/0x86 [<ffffffff80c02d36>] apply_boot_alternatives+0x3c/0xfa [<ffffffff80c03ad8>] setup_arch+0x584/0x5b8 [<ffffffff80c0075a>] start_kernel+0xa2/0x8f8 This issue was exposed by 702e64550b12 ("riscv: fpu: switch has_fpu() to riscv_has_extension_likely()"), as it is the patching in has_fpu() that triggers the splats in Guenter's report. Take the text_mutex before doing any code patching to satisfy lockdep. Fixes: ff689fd21cb1 ("riscv: add RISC-V Svpbmt extension support") Fixes: a35707c3d850 ("riscv: add memory-type errata for T-Head") Fixes: 1a0e5dbd3723 ("riscv: sifive: Add SiFive alternative ports") Reported-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/all/20230212154333.GA3760469@roeck-us.net/ Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Samuel Holland <samuel@sholland.org> Tested-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230212194735.491785-1-conor@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv: hwcap: Don't alphabetize ISA extension IDsAndrew Jones
While the comment above the ISA extension ID definitions says "Entries are sorted alphabetically.", this stopped being good advice with commit d8a3d8a75206 ("riscv: hwcap: make ISA extension ids can be used in asm"), as we now use macros instead of enums. Reshuffling defines is error-prone, so, since they don't need to be in any particular order, change the advice to just adding new extensions at the bottom. Also, take the opportunity to change spaces to tabs, merge three comments into one, and move the base and max defines into more logical locations wrt the ID definitions. Signed-off-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230209123636.123537-1-ajones@ventanamicro.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21RISC-V: fix ordering of Zbb extensionHeiko Stuebner
As Andrew reported, Zb* comes after Zi* according 27.11 "Subset Naming Convention" so fix the ordering accordingly. Reported-by: Andrew Jones <ajones@ventanamicro.com> Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Tested-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230208225328.1636017-2-heiko@sntech.de Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv: jump_label: Fixup unaligned arch_static_branch functionAndy Chiu
Runtime code patching must be done at a naturally aligned address, or we may execute on a partial instruction. We have encountered problems traced back to static jump functions during the test. We switched the tracer randomly for every 1~5 seconds on a dual-core QEMU setup and found the kernel sucking at a static branch where it jumps to itself. The reason is that the static branch was 2-byte but not 4-byte aligned. Then, the kernel would patch the instruction, either J or NOP, with two half-word stores if the machine does not have efficient unaligned accesses. Thus, moments exist where half of the NOP mixes with the other half of the J when transitioning the branch. In our particular case, on a little-endian machine, the upper half of the NOP was mixed with the lower part of the J when enabling the branch, resulting in a jump that jumped to itself. Conversely, it would result in a HINT instruction when disabling the branch, but it might not be observable. ARM64 does not have this problem since all instructions must be 4-byte aligned. Fixes: ebc00dde8a97 ("riscv: Add jump-label implementation") Link: https://lore.kernel.org/linux-riscv/20220913094252.3555240-6-andy.chiu@sifive.com/ Reviewed-by: Greentime Hu <greentime.hu@sifive.com> Signed-off-by: Andy Chiu <andy.chiu@sifive.com> Signed-off-by: Guo Ren <guoren@kernel.org> Link: https://lore.kernel.org/r/20230206090440.1255001-1-guoren@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21RISC-V: Only provide the single-letter extensions in HWCAPPalmer Dabbelt
The recent refactoring led to us leaking some HWCAP bits to userspace that didn't make much sense. With any luck we'll have a better scheme soon, but for now just mask off those bits to avoid polluting userspace. Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230202233832.11036-1-palmer@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv: mm: fix regression due to update_mmu_cache changeSergey Matyukevich
This is a partial revert of the commit 4bd1d80efb5a ("riscv: mm: notify remote harts about mmu cache updates"). Original commit included two loosely related changes serving the same purpose of fixing stale TLB entries causing user-space application crash: - introduce deferred per-ASID TLB flush for CPUs not running the task - switch to per-ASID TLB flush on all CPUs running the task in update_mmu_cache According to report and discussion in [1], the second part caused a regression on Renesas RZ/Five SoC. For now restore the old behavior of the update_mmu_cache. [1] https://lore.kernel.org/linux-riscv/20220829205219.283543-1-geomatsi@gmail.com/ Fixes: 4bd1d80efb5a ("riscv: mm: notify remote harts about mmu cache updates") Reported-by: "Lad, Prabhakar" <prabhakar.csengg@gmail.com> Signed-off-by: Sergey Matyukevich <sergey.matyukevich@syntacore.com> Link: trailer, so that it can be parsed with git's trailer functionality? Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230129211818.686557-1-geomatsi@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21Merge tag 'for-linus-6.3-rc1-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - help deprecate the /proc/xen files by making the related information available via sysfs - mark the Xen variants of play_dead "noreturn" - support a shared Xen platform interrupt - several small cleanups and fixes * tag 'for-linus-6.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: sysfs: make kobj_type structure constant x86/Xen: drop leftover VM-assist uses xen: Replace one-element array with flexible-array member xen/grant-dma-iommu: Implement a dummy probe_device() callback xen/pvcalls-back: fix permanently masked event channel xen: Allow platform PCI interrupt to be shared x86/xen/time: prefer tsc as clocksource when it is invariant x86/xen: mark xen_pv_play_dead() as __noreturn x86/xen: don't let xen_pv_play_dead() return drivers/xen/hypervisor: Expose Xen SIF flags to userspace
2023-02-21Merge tag 'hyperv-next-signed-20230220' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv updates from Wei Liu: - allow Linux to run as the nested root partition for Microsoft Hypervisor (Jinank Jain and Nuno Das Neves) - clean up the return type of callback functions (Dawei Li) * tag 'hyperv-next-signed-20230220' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: x86/hyperv: Fix hv_get/set_register for nested bringup Drivers: hv: Make remove callback of hyperv driver void returned Drivers: hv: Enable vmbus driver for nested root partition x86/hyperv: Add an interface to do nested hypercalls Drivers: hv: Setup synic registers in case of nested root partition x86/hyperv: Add support for detecting nested hypervisor
2023-02-21scripts/decodecode: Add support for RISC-VBjörn Töpel
RISC-V has some GNU disassembly quirks, e.g. it requires '-D' to properly disassemble .2byte directives similar to Arm [1]. Further, GNU objdump groups RISC-V instruction by 2 or 4 byte chunks, instead doing byte-for-byte. Add the required switches, and translate from short/word to bytes when ARCH is "riscv". An example how to invoke decodecode for RISC-V: $ echo 'Code: bf45 f793 1007 f7d9 50ef 37af d541 b7d9 7097 00c8 (80e7) 6140' | AFLAGS="-march=rv64imac_zicbom_zihintpause" \ ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- ./scripts/decodecode Code: bf45 f793 1007 f7d9 50ef 37af d541 b7d9 7097 00c8 (80e7) 6140 All code ======== 0: bf45 c.j 0xffffffffffffffb0 2: 1007f793 andi a5,a5,256 6: f7d9 c.bnez a5,0xffffffffffffff94 8: 37af50ef jal ra,0xf5382 c: d541 c.beqz a0,0xffffffffffffff94 e: b7d9 c.j 0xffffffffffffffd4 10: 00c87097 auipc ra,0xc87 14:* 614080e7 jalr ra,1556(ra) # 0xc87624 <-- trapping instruction Code starting with the faulting instruction =========================================== 0: 614080e7 jalr ra,1556(ra) [1] https://sourceware.org/bugzilla/show_bug.cgi?id=10263 Signed-off-by: Björn Töpel <bjorn@rivosinc.com> Tested-by: Alexandre Ghiti <alexghiti@rivosinc.com> Link: https://lore.kernel.org/r/20230119074738.708301-3-bjorn@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv: Add instruction dump to RISC-V splatsBjörn Töpel
Add instruction dump (Code:) output to RISC-V splats. Dump 16b parcels. An example: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Oops [#1] Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.2.0-rc3-00302-g840ff44c571d-dirty #27 Hardware name: riscv-virtio,qemu (DT) epc : kernel_init+0xc8/0x10e ra : kernel_init+0x70/0x10e epc : ffffffff80bd9a40 ra : ffffffff80bd99e8 sp : ff2000000060bec0 gp : ffffffff81730b28 tp : ff6000007ff00000 t0 : 7974697275636573 t1 : 0000000000000000 t2 : 3030303270393d6e s0 : ff2000000060bee0 s1 : ffffffff81732028 a0 : 0000000000000000 a1 : ff60000080dd1780 a2 : 0000000000000002 a3 : ffffffff8176a470 a4 : 0000000000000000 a5 : 000000000000000a a6 : 0000000000000081 a7 : ff60000080dd1780 s2 : 0000000000000000 s3 : 0000000000000000 s4 : 0000000000000000 s5 : 0000000000000000 s6 : 0000000000000000 s7 : 0000000000000000 s8 : 0000000000000000 s9 : 0000000000000000 s10: 0000000000000000 s11: 0000000000000000 t3 : ffffffff81186018 t4 : 0000000000000022 t5 : 000000000000003d t6 : 0000000000000000 status: 0000000200000120 badaddr: 0000000000000000 cause: 000000000000000f [<ffffffff80003528>] ret_from_exception+0x0/0x16 Code: 862a d179 608c a517 0069 0513 2be5 d0ef db2e 47a9 (c11c) a517 ---[ end trace 0000000000000000 ]--- Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b SMP: stopping secondary CPUs ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]--- Signed-off-by: Björn Töpel <bjorn@rivosinc.com> Link: https://lore.kernel.org/r/20230119074738.708301-2-bjorn@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv: select ARCH_WANT_LD_ORPHAN_WARN for !XIP_KERNELJisheng Zhang
Now, after that all the sections are explicitly described and declared in vmlinux.lds.S, we can enable ld orphan warnings for !XIP_KERNEL to prevent from missing any new sections in future. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230119155417.2600-6-jszhang@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv: vmlinux.lds.S: explicitly catch .init.bss sections from EFI stubJisheng Zhang
When enabling linker orphan section warning, I got warnings similar as below: ld.lld: warning: ./drivers/firmware/efi/libstub/lib.a(efi-stub-helper.stub.o):(.init.bss) is being placed in '.init.bss' Catch the sections so that we can enable linker orphan section warning. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Link: https://lore.kernel.org/r/20230119155417.2600-5-jszhang@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv: vmlinux.lds.S: explicitly catch .riscv.attributes sectionsJisheng Zhang
When enabling linker orphan section warning, I got warnings similar as below: riscv64-linux-gnu-ld: warning: orphan section `.riscv.attributes' from `init/main.o' being placed in section `.riscv.attributes' While I don't see any usage of .riscv.attributes sections' in kernel now, just catch the sections so that we can enable linker orphan section warning. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Link: https://lore.kernel.org/r/20230119155417.2600-4-jszhang@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv: vmlinux.lds.S: explicitly catch .rela.dyn symbolsJisheng Zhang
When enabling linker orphan section warning, I got warnings similar as below: riscv64-linux-gnu-ld: warning: orphan section `.rela.text' from `init/main.o' being placed in section `.rela.dyn' Use the approach similar as ARM64 does and declare it in vmlinux.lds.S Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Link: https://lore.kernel.org/r/20230119155417.2600-3-jszhang@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-21riscv: lds: define RUNTIME_DISCARD_EXITJisheng Zhang
riscv discards .exit.* sections at run-time but doesn't define RUNTIME_DISCARD_EXIT. However, the .exit.* sections are still allocated and kept even if the generic DISCARDS would discard the sections due to missing RUNTIME_DISCARD_EXIT, because the DISCARD sits at the end of the linker script. Add the missing RUNTIME_DISCARD_EXIT define so that it still works if we move DISCARD up or even at the beginning of the linker script. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Suggested-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230119155417.2600-2-jszhang@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-22bootconfig: Increase max nodes of bootconfig from 1024 to 8192 for DCC supportSouradeep Chowdhury
The Data Capture and Compare(DCC) is a debugging tool that uses the bootconfig for configuring the register values during boot-time. Increase the max nodes supported by bootconfig to cater to the requirements of the Data Capture and Compare Driver. Link: https://lore.kernel.org/all/1674536682-18404-1-git-send-email-quic_schowdhu@quicinc.com/ Signed-off-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2023-02-22bootconfig: Default BOOT_CONFIG_FORCE to y if BOOT_CONFIG_EMBEDPaul E. McKenney
When a kernel is built with CONFIG_BOOT_CONFIG_EMBED=y, the intention will normally be to unconditionally provide the specified kernel-boot arguments to the kernel, as opposed to requiring a separately provided bootconfig parameter. Therefore, make the BOOT_CONFIG_FORCE Kconfig option default to y in kernels built with CONFIG_BOOT_CONFIG_EMBED=y. The old semantics may be obtained by manually overriding this default. Link: https://lore.kernel.org/all/20230107162202.GA4028633@paulmck-ThinkPad-P17-Gen-1/ Suggested-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2023-02-21Merge tag 'arm64-upstream' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Catalin Marinas: - Support for arm64 SME 2 and 2.1. SME2 introduces a new 512-bit architectural register (ZT0, for the look-up table feature) that Linux needs to save/restore - Include TPIDR2 in the signal context and add the corresponding kselftests - Perf updates: Arm SPEv1.2 support, HiSilicon uncore PMU updates, ACPI support to the Marvell DDR and TAD PMU drivers, reset DTM_PMU_CONFIG (ARM CMN) at probe time - Support for DYNAMIC_FTRACE_WITH_CALL_OPS on arm64 - Permit EFI boot with MMU and caches on. Instead of cleaning the entire loaded kernel image to the PoC and disabling the MMU and caches before branching to the kernel bare metal entry point, leave the MMU and caches enabled and rely on EFI's cacheable 1:1 mapping of all of system RAM to populate the initial page tables - Expose the AArch32 (compat) ELF_HWCAP features to user in an arm64 kernel (the arm32 kernel only defines the values) - Harden the arm64 shadow call stack pointer handling: stash the shadow stack pointer in the task struct on interrupt, load it directly from this structure - Signal handling cleanups to remove redundant validation of size information and avoid reading the same data from userspace twice - Refactor the hwcap macros to make use of the automatically generated ID registers. It should make new hwcaps writing less error prone - Further arm64 sysreg conversion and some fixes - arm64 kselftest fixes and improvements - Pointer authentication cleanups: don't sign leaf functions, unify asm-arch manipulation - Pseudo-NMI code generation optimisations - Minor fixes for SME and TPIDR2 handling - Miscellaneous updates: ARCH_FORCE_MAX_ORDER is now selectable, replace strtobool() to kstrtobool() in the cpufeature.c code, apply dynamic shadow call stack in two passes, intercept pfn changes in set_pte_at() without the required break-before-make sequence, attempt to dump all instructions on unhandled kernel faults * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (130 commits) arm64: fix .idmap.text assertion for large kernels kselftest/arm64: Don't require FA64 for streaming SVE+ZA tests kselftest/arm64: Copy whole EXTRA context arm64: kprobes: Drop ID map text from kprobes blacklist perf: arm_spe: Print the version of SPE detected perf: arm_spe: Add support for SPEv1.2 inverted event filtering perf: Add perf_event_attr::config3 arm64/sme: Fix __finalise_el2 SMEver check drivers/perf: fsl_imx8_ddr_perf: Remove set-but-not-used variable arm64/signal: Only read new data when parsing the ZT context arm64/signal: Only read new data when parsing the ZA context arm64/signal: Only read new data when parsing the SVE context arm64/signal: Avoid rereading context frame sizes arm64/signal: Make interface for restore_fpsimd_context() consistent arm64/signal: Remove redundant size validation from parse_user_sigframe() arm64/signal: Don't redundantly verify FPSIMD magic arm64/cpufeature: Use helper macros to specify hwcaps arm64/cpufeature: Always use symbolic name for feature value in hwcaps arm64/sysreg: Initial unsigned annotations for ID registers arm64/sysreg: Initial annotation of signed ID registers ...
2023-02-22Allow forcing unconditional bootconfig processingPaul E. McKenney
The BOOT_CONFIG family of Kconfig options allows a bootconfig file containing kernel boot parameters to be embedded into an initrd or into the kernel itself. This can be extremely useful when deploying kernels in cases where some of the boot parameters depend on the kernel version rather than on the server hardware, firmware, or workload. Unfortunately, the "bootconfig" kernel parameter must be specified in order to cause the kernel to look for the embedded bootconfig file, and it clearly does not help to embed this "bootconfig" kernel parameter into that file. Therefore, provide a new BOOT_CONFIG_FORCE Kconfig option that causes the kernel to act as if the "bootconfig" kernel parameter had been specified. In other words, kernels built with CONFIG_BOOT_CONFIG_FORCE=y will look for the embedded bootconfig file even when the "bootconfig" kernel parameter is omitted. This permits kernel-version-dependent kernel boot parameters to be embedded into the kernel image without the need to (for example) update large numbers of boot loaders. Link: https://lore.kernel.org/all/20230105005838.GA1772817@paulmck-ThinkPad-P17-Gen-1/ Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: <linux-doc@vger.kernel.org> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2023-02-22tools/bootconfig: fix single & used for logical conditionAntonio Alvarez Feijoo
A single & will create a background process and return true, so the grep command will run even if the file checked in the first condition does not exist. Link: https://lore.kernel.org/all/20230112114215.17103-1-antonio.feijoo@suse.com/ Fixes: 1eaad3ac3f39 ("tools/bootconfig: Use per-group/all enable option in ftrace2bconf script") Signed-off-by: Antonio Alvarez Feijoo <antonio.feijoo@suse.com> Cc: stable@vger.kernel.org Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2023-02-21Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM udpates from Russell King: - Improve Kconfig help text for Cortex A8 and Cortex A9 errata - Kconfig spelling and grammar fixes - Allow kernel-mode VFP/Neon in softirq context - Use Neon in softirq context - Implement AES-CTR/GHASH version of GCM * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9289/1: Allow pre-ARMv5 builds with ld.lld 16.0.0 and newer ARM: 9288/1: Kconfigs: fix spelling & grammar ARM: 9286/1: crypto: Implement fused AES-CTR/GHASH version of GCM ARM: 9285/1: remove meaningless arch/arm/mach-rda/Makefile ARM: 9283/1: permit non-nested kernel mode NEON in softirq context ARM: 9282/1: vfp: Manipulate task VFP state with softirqs disabled ARM: 9281/1: improve Cortex A8/A9 errata help text
2023-02-21Merge tag 'm68k-for-v6.3-tag1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull m68k updates from Geert Uytterhoeven: - Add seccomp support - defconfig updates - Miscellaneous fixes and improvements * tag 'm68k-for-v6.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: /proc/hardware should depend on PROC_FS selftests/seccomp: Add m68k support m68k: Add kernel seccomp support m68k: Check syscall_trace_enter() return code m68k: defconfig: Update defconfigs for v6.2-rc3 m68k: q40: Do not initialise statics to 0
2023-02-21Merge tag 's390-6.3-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Heiko Carstens: - Large cleanup of the con3270/tty3270 driver. Among others this fixes: - Background Color Support - ASCII Line Character Support - VT100 Support - Geometries other than 80x24 - Cleanup and improve cmpxchg() code. Also add cmpxchg_user_key() to uaccess functions, which will be used by KVM to access KVM guest memory with a specific storage key - Add support for user space events counting to CPUMF - Cleanup the vfio/ccw code, which also allows now to properly support 2K Format-2 IDALs - Move kernel page table allocation and initialization to decompressor, which finally allows to enter the kernel with dynamic address translation enabled. This in turn allows to get rid of code with special handling in the kernel, which has to distinguish if DAT is on or off - Replace kretprobe with rethook - Various improvements to vfio/ap queue resets: - Use TAPQ to verify completion of a reset in progress rather than multiple invocations of ZAPQ. - Check TAPQ response codes when verifying successful completion of ZAPQ. - Fix erroneous handling of some error response codes. - Increase the maximum amount of time to wait for successful completion of ZAPQ - Rework system call wrappers to get rid of alias functions, which were only left on s390 - Cleanup diag288_wdt watchdog driver. It has been agreed on with Guenter Roeck that this goes upstream via the s390 tree - Add missing loadparm parameter handling for list-directed ECKD ipl/reipl - Various improvements to memory detection code - Remove arch_cpu_idle_time() since the current implementation is broken, and allows user space observable accounted idle times which can temporarily decrease - Add Reset DAT-Protection support: (only) allow to change PTEs from RO to RW with a new RDP instruction. Unlike the currently used IPTE instruction, this does not necessarily guarantee that TLBs of all CPUs are synchronously flushed; and that remote CPUs can see spurious protection faults. The overall improvement for not requiring an all CPU synchronization, like it is required with IPTE, should be beneficial - Fix KFENCE page fault reporting - Smaller cleanups and improvement all over the place * tag 's390-6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (182 commits) s390/irq,idle: simplify idle check s390/processor: add test_and_set_cpu_flag() and test_and_clear_cpu_flag() s390/processor: let cpu helper functions return boolean values s390/kfence: fix page fault reporting s390/zcrypt: introduce ctfm field in struct CPRBX s390: remove confusing comment from uapi types header file vfio/ccw: remove WARN_ON during shutdown s390/entry: remove toolchain dependent micro-optimization s390/mem_detect: do not truncate online memory ranges info s390/vx: remove __uint128_t type from __vector128 struct again s390/mm: add support for RDP (Reset DAT-Protection) s390/mm: define private VM_FAULT_* reasons from top bits Documentation: s390: correct spelling s390/ap: fix status returned by ap_qact() s390/ap: fix status returned by ap_aqic() s390: vfio-ap: tighten the NIB validity check Revert "s390/mem_detect: do not update output parameters on failure" s390/idle: remove arch_cpu_idle_time() and corresponding code s390/vx: use simple assignments to access __vector128 members s390/vx: add 64 and 128 bit members to __vector128 struct ...
2023-02-21dt-bindings: regulator: Add mps,mpq7932 power-management ICSaravanan Sekar
Document mpq7932 power-management IC Signed-off-by: Saravanan Sekar <saravanan@linumiz.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20221207173716.123223-3-saravanan@linumiz.com Signed-off-by: Rob Herring <robh@kernel.org>
2023-02-21Merge tag 'x86_cpu_for_v6.3_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cpuid updates from Borislav Petkov: - Cache the AMD debug registers in per-CPU variables to avoid MSR writes where possible, when supporting a debug registers swap feature for SEV-ES guests - Add support for AMD's version of eIBRS called Automatic IBRS which is a set-and-forget control of indirect branch restriction speculation resources on privilege change - Add support for a new x86 instruction - LKGS - Load kernel GS which is part of the FRED infrastructure - Reset SPEC_CTRL upon init to accomodate use cases like kexec which rediscover - Other smaller fixes and cleanups * tag 'x86_cpu_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/amd: Cache debug register values in percpu variables KVM: x86: Propagate the AMD Automatic IBRS feature to the guest x86/cpu: Support AMD Automatic IBRS x86/cpu, kvm: Add the SMM_CTL MSR not present feature x86/cpu, kvm: Add the Null Selector Clears Base feature x86/cpu, kvm: Move X86_FEATURE_LFENCE_RDTSC to its native leaf x86/cpu, kvm: Add the NO_NESTED_DATA_BP feature KVM: x86: Move open-coded CPUID leaf 0x80000021 EAX bit propagation code x86/cpu, kvm: Add support for CPUID_80000021_EAX x86/gsseg: Add the new <asm/gsseg.h> header to <asm/asm-prototypes.h> x86/gsseg: Use the LKGS instruction if available for load_gs_index() x86/gsseg: Move load_gs_index() to its own new header file x86/gsseg: Make asm_load_gs_index() take an u16 x86/opcode: Add the LKGS instruction to x86-opcode-map x86/cpufeature: Add the CPU feature bit for LKGS x86/bugs: Reset speculation control settings on init x86/cpu: Remove redundant extern x86_read_arch_cap_msr()
2023-02-21uaccess: Add speculation barrier to copy_from_user()Dave Hansen
The results of "access_ok()" can be mis-speculated. The result is that you can end speculatively: if (access_ok(from, size)) // Right here even for bad from/size combinations. On first glance, it would be ideal to just add a speculation barrier to "access_ok()" so that its results can never be mis-speculated. But there are lots of system calls just doing access_ok() via "copy_to_user()" and friends (example: fstat() and friends). Those are generally not problematic because they do not _consume_ data from userspace other than the pointer. They are also very quick and common system calls that should not be needlessly slowed down. "copy_from_user()" on the other hand uses a user-controller pointer and is frequently followed up with code that might affect caches. Take something like this: if (!copy_from_user(&kernelvar, uptr, size)) do_something_with(kernelvar); If userspace passes in an evil 'uptr' that *actually* points to a kernel addresses, and then do_something_with() has cache (or other) side-effects, it could allow userspace to infer kernel data values. Add a barrier to the common copy_from_user() code to prevent mis-speculated values which happen after the copy. Also add a stub for architectures that do not define barrier_nospec(). This makes the macro usable in generic code. Since the barrier is now usable in generic code, the x86 #ifdef in the BPF code can also go away. Reported-by: Jordy Zomer <jordyzomer@google.com> Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Daniel Borkmann <daniel@iogearbox.net> # BPF bits Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-02-21sysctl: fix proc_dobool() usabilityOndrej Mosnacek
Currently proc_dobool expects a (bool *) in table->data, but sizeof(int) in table->maxsize, because it uses do_proc_dointvec() directly. This is unsafe for at least two reasons: 1. A sysctl table definition may use { .data = &variable, .maxsize = sizeof(variable) }, not realizing that this makes the sysctl unusable (see the Fixes: tag) and that they need to use the completely counterintuitive sizeof(int) instead. 2. proc_dobool() will currently try to parse an array of values if given .maxsize >= 2*sizeof(int), but will try to write values of type bool by offsets of sizeof(int), so it will not work correctly with neither an (int *) nor a (bool *). There is no .maxsize validation to prevent this. Fix this by: 1. Constraining proc_dobool() to allow only one value and .maxsize == sizeof(bool). 2. Wrapping the original struct ctl_table in a temporary one with .data pointing to a local int variable and .maxsize set to sizeof(int) and passing this one to proc_dointvec(), converting the value to/from bool as needed (using proc_dou8vec_minmax() as an example). 3. Extending sysctl_check_table() to enforce proc_dobool() expectations. 4. Fixing the proc_dobool() docstring (it was just copy-pasted from proc_douintvec, apparently...). 5. Converting all existing proc_dobool() users to set .maxsize to sizeof(bool) instead of sizeof(int). Fixes: 83efeeeb3d04 ("tty: Allow TIOCSTI to be disabled") Fixes: a2071573d634 ("sysctl: introduce new proc handler proc_dobool") Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
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