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2023-02-22mfd: syscon: Allow reset control for syscon devicesJeremy Kerr1-6/+21
Simple syscon devices may require deassertion of a reset signal in order to access their register set. Rather than requiring a custom driver to implement this, we can use the generic "resets" specifiers to link a reset line to the syscon. This change adds an optional reset line to the syscon device description, and deasserts the reset if detected. Signed-off-by: Jeremy Kerr <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22dt-bindings: mfd/syscon: Add resets propertyJeremy Kerr1-0/+3
Simple syscon devices may require deassertion of a reset signal in order to access their register set. This change adds the `resets` property from reset.yaml#/properties/resets (referenced through core.yaml), specifying a maxItems of 1 for a single (optional) reset descriptor. This will allow a future change to the syscon driver to implement reset control. Signed-off-by: Jeremy Kerr <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22dt-bindings: mfd: syscon: Add amd,pensando-elba-syscon compatibleBrad Larson1-0/+1
Add the AMD Pensando Elba SoC system registers compatible Signed-off-by: Brad Larson <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22dt-bindings: mfd: qcom,tcsr: Add compatible for MSM8226Matti Lehtimäki1-0/+1
Document the qcom,msm8226-tcsr compatible. Signed-off-by: Matti Lehtimäki <[email protected]> Acked-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22mfd: simple-mfd-i2c: Fix incoherent comment regarding DT registrationLee Jones1-1/+1
Signed-off-by: Lee Jones <[email protected]>
2023-02-22mfd: axp20x: Switch to the sys-off handler APISamuel Holland1-16/+11
This removes a layer of indirection through pm_power_off() and allows the PMIC handler to be used as a fallback when firmware power off fails. This happens on boards like the Clockwork DevTerm R-01 where OpenSBI does not know how to use the PMIC to power off the board. Move the check for AXP288 to avoid registering a dummy handler. Signed-off-by: Samuel Holland <[email protected]> [Lee: Removed superfluous new line] Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22mfd: core: Spelling s/compement/complement/Geert Uytterhoeven1-1/+1
Fix a misspelling of "complement". Signed-off-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/aa7abd7103a0e4be954ea63de78f12e8251b2964.1673271092.git.geert+renesas@glider.be
2023-02-22mfd: max8925: Remove the unused function irq_to_max8925()Jiapeng Chong1-6/+0
The function irq_to_max8925() is defined in the max8925-core.c file, but not called elsewhere, so remove this unused function. drivers/mfd/max8925-core.c:472:40: warning: unused function 'irq_to_max8925'. Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3561 Reported-by: Abaci Robot <[email protected]> Signed-off-by: Jiapeng Chong <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22mfd: qcom-pm8xxx: Remove set but unused variable 'rev'Jiapeng Chong1-3/+0
Variable rev is not effectively used in the function, so delete it. drivers/mfd/qcom-pm8xxx.c:513:6: warning: variable 'rev' set but not used. Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3558 Reported-by: Abaci Robot <[email protected]> Signed-off-by: Jiapeng Chong <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22dt-bindings: mfd: syscon: Document GXP register compatibleNick Hawkins1-0/+1
Document hpe,gxp-sysreg compatible for GXP registers. Signed-off-by: Nick Hawkins <[email protected]> Acked-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22mfd: twl4030-power: Drop empty platform remove functionUwe Kleine-König1-6/+0
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 <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22mfd: twl: Fix TWL6032 phy vbus detectionAndreas Kemnade2-5/+6
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 <[email protected]> Cc: Tony Lindgren <[email protected]> Signed-off-by: Andreas Kemnade <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22mfd: pcf50633-adc: Fix potential memleak in pcf50633_adc_async_read()Qiheng Lin1-1/+6
`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 <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22MAINTAINERS: Move MFD from a Supported to Maintaied stateLee Jones1-1/+1
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 <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22dt-bindings: mfd: cros-ec: Add compatible string for UART supportBhanu Prakash Maiya1-0/+20
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 <[email protected]> Co-developed-by: Mark Hasemeyer <[email protected]> Signed-off-by: Mark Hasemeyer <[email protected]> Acked-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/20221207104005.v10.2.I9e018ecb8bdf341648cb64417085978ff0d22a46@changeid
2023-02-22mfd: Use sysfs_emit() to instead of scnprintf()ye xingchen2-5/+4
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 <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22mfd: cs5535: Don't build on UMLRandy Dunlap1-0/+1
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 <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22mfd: axp20x: Fix order of pek rise and fall eventsAren Moynihan1-5/+10
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 <[email protected]> Reviewed-by: Samuel Holland <[email protected]> Tested-by: Samuel Holland <[email protected]> Acked-by: Chen-Yu Tsai <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22dt-bindings: mfd: qcom,spmi-pmic: Document PMICs bundled with SM8550Neil Armstrong1-0/+7
Document compatible for the pm8550, pm8550b, pm8550ve, pm8550vs, pmk8550. pm8010 & pmr735d SPMI PMICs Signed-off-by: Neil Armstrong <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Lee Jones <[email protected]> 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 Fitzhenry1-0/+1
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 <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Acked-by: Neil Armstrong <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22Merge tags 'ib-mfd-extcon-i2c-v6.3' and 'ib-mfd-fpga-hwmon-v6.3-1' into ↵Lee Jones12-433/+1221
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 Currey1-0/+4
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 <[email protected]> Signed-off-by: Russell Currey <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-21Merge tag 'net-next-6.3' of ↵Linus Torvalds1823-43114/+155979
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 Torvalds186-4053/+6379
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 Torvalds69-488/+3100
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 Ren1-0/+1
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 <[email protected]> Signed-off-by: Guo Ren <[email protected]> Link: https://lore.kernel.org/linux-riscv/[email protected]/ Acked-by: Muchun Song <[email protected]> Reviewed-by: Andrew Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21Merge tag 'tag-chrome-platform-for-v6.3' of ↵Linus Torvalds19-147/+846
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 Chang1-0/+4
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 <[email protected]> Reviewed-by: Andrew Jones <[email protected]> Fixes: c9c1af3f186a ("RISC-V: rename parse_asm.h to insn.h") Reviewed-by: Conor Dooley <[email protected]> Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21Merge patch series "riscv: Dump faulting instructions in oops handler"Palmer Dabbelt2-2/+35
Björn Töpel <[email protected]> says: From: Björn Töpel <[email protected]> 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/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv: alternative: proceed one more instruction for auipc/jalr pairJisheng Zhang1-0/+1
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 <[email protected]> Suggested-by: Andrew Jones <[email protected]> Reviewed-by: Andrew Jones <[email protected]> Reviewed-by: Heiko Stuebner <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21Merge patch series "riscv: improve link and support ARCH_WANT_LD_ORPHAN_WARN"Palmer Dabbelt2-0/+10
Jisheng Zhang <[email protected]> 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/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv: Avoid enabling interrupts in die()Mattias Nissler1-2/+3
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 <[email protected]> Reviewed-by: Björn Töpel <[email protected]> Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv, mm: Perform BPF exhandler fixup on page faultBjörn Töpel1-4/+6
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 <[email protected]> Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21RISC-V: take text_mutex during alternative patchingConor Dooley3-2/+13
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 <[email protected]> Link: https://lore.kernel.org/all/[email protected]/ Signed-off-by: Conor Dooley <[email protected]> Reviewed-by: Samuel Holland <[email protected]> Tested-by: Guenter Roeck <[email protected]> Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv: hwcap: Don't alphabetize ISA extension IDsAndrew Jones1-22/+20
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 <[email protected]> Reviewed-by: Conor Dooley <[email protected]> Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21RISC-V: fix ordering of Zbb extensionHeiko Stuebner1-1/+1
As Andrew reported, Zb* comes after Zi* according 27.11 "Subset Naming Convention" so fix the ordering accordingly. Reported-by: Andrew Jones <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Reviewed-by: Conor Dooley <[email protected]> Reviewed-by: Andrew Jones <[email protected]> Tested-by: Conor Dooley <[email protected]> Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv: jump_label: Fixup unaligned arch_static_branch functionAndy Chiu1-0/+2
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/[email protected]/ Reviewed-by: Greentime Hu <[email protected]> Signed-off-by: Andy Chiu <[email protected]> Signed-off-by: Guo Ren <[email protected]> Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21RISC-V: Only provide the single-letter extensions in HWCAPPalmer Dabbelt2-12/+6
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 <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv: mm: fix regression due to update_mmu_cache changeSergey Matyukevich1-1/+1
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/[email protected]/ Fixes: 4bd1d80efb5a ("riscv: mm: notify remote harts about mmu cache updates") Reported-by: "Lad, Prabhakar" <[email protected]> Signed-off-by: Sergey Matyukevich <[email protected]> Link: trailer, so that it can be parsed with git's trailer functionality? Reviewed-by: Conor Dooley <[email protected]> Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21Merge tag 'for-linus-6.3-rc1-tag' of ↵Linus Torvalds14-34/+151
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 'kvm-x86-apic-6.3' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini4-49/+125
KVM x86 APIC changes for 6.3: - Remove a superfluous variables from apic_get_tmcct() - Fix various edge cases in x2APIC MSR emulation - Mark APIC timer as expired if its in one-shot mode and the count underflows while the vCPU task was being migrated - Reset xAPIC when userspace forces "impossible" x2APIC => xAPIC transition
2023-02-21Merge tag 'hyperv-next-signed-20230220' of ↵Linus Torvalds20-79/+172
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 Töpel1-1/+11
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 <[email protected]> Tested-by: Alexandre Ghiti <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv: Add instruction dump to RISC-V splatsBjörn Töpel1-1/+24
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 <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv: select ARCH_WANT_LD_ORPHAN_WARN for !XIP_KERNELJisheng Zhang1-0/+1
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 <[email protected]> Reviewed-by: Conor Dooley <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv: vmlinux.lds.S: explicitly catch .init.bss sections from EFI stubJisheng Zhang1-0/+3
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 <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv: vmlinux.lds.S: explicitly catch .riscv.attributes sectionsJisheng Zhang1-0/+1
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 <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv: vmlinux.lds.S: explicitly catch .rela.dyn symbolsJisheng Zhang1-0/+4
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 <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-21riscv: lds: define RUNTIME_DISCARD_EXITJisheng Zhang1-0/+1
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 <[email protected]> Suggested-by: Masahiro Yamada <[email protected]> Reviewed-by: Conor Dooley <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2023-02-22bootconfig: Increase max nodes of bootconfig from 1024 to 8192 for DCC supportSouradeep Chowdhury1-1/+1
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/[email protected]/ Signed-off-by: Souradeep Chowdhury <[email protected]> Acked-by: Masami Hiramatsu (Google) <[email protected]> Signed-off-by: Masami Hiramatsu (Google) <[email protected]>
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