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2025-09-16hinic3: Command Queue flush interfacesFan Gong
Add the data structures and functions for command queue flushing. Co-developed-by: Zhu Yikai <zhuyikai1@h-partners.com> Signed-off-by: Zhu Yikai <zhuyikai1@h-partners.com> Signed-off-by: Fan Gong <gongfan1@huawei.com> Link: https://patch.msgid.link/2cfd5dfbccb5265e22bdb5a2b279122a57795bb1.1757653621.git.zhuyikai1@h-partners.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-16hinic3: HW capability initializationFan Gong
Use mailbox to get device capability for initializing driver capability. Co-developed-by: Zhu Yikai <zhuyikai1@h-partners.com> Signed-off-by: Zhu Yikai <zhuyikai1@h-partners.com> Signed-off-by: Fan Gong <gongfan1@huawei.com> Link: https://patch.msgid.link/8f4cbd99306a14cee1b7621714c269a02a5082dc.1757653621.git.zhuyikai1@h-partners.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-16hinic3: HW common function initializationFan Gong
Add initialization for data structures and functions(cmdq ceq mbox ceq) that interact with hardware. Co-developed-by: Zhu Yikai <zhuyikai1@h-partners.com> Signed-off-by: Zhu Yikai <zhuyikai1@h-partners.com> Signed-off-by: Fan Gong <gongfan1@huawei.com> Link: https://patch.msgid.link/717fc839f415996d6f2540f9208fb038c367c050.1757653621.git.zhuyikai1@h-partners.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-16hinic3: HW management interfacesFan Gong
Initialize hardware management config of irq, aeq and ceq. These will send hardware messages to driver. Co-developed-by: Zhu Yikai <zhuyikai1@h-partners.com> Signed-off-by: Zhu Yikai <zhuyikai1@h-partners.com> Signed-off-by: Fan Gong <gongfan1@huawei.com> Link: https://patch.msgid.link/91c2ec3178bd1f28b4f9c509fd49b86a289ff79e.1757653621.git.zhuyikai1@h-partners.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-16hinic3: HW initializationFan Gong
Add the hardware resource data structures, functions for HW initialization, configuration and releasement. Co-developed-by: Zhu Yikai <zhuyikai1@h-partners.com> Signed-off-by: Zhu Yikai <zhuyikai1@h-partners.com> Signed-off-by: Fan Gong <gongfan1@huawei.com> Link: https://patch.msgid.link/e3381375e3d4a89e11d4816a0a20a1db4df93b66.1757653621.git.zhuyikai1@h-partners.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-16Merge tag 'extcon-next-for-6.18' of ↵Greg Kroah-Hartman
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next Chanwoo writes: Update extcon next for v6.18 Detailed description for this pull request: - Fix wakeup source leaks on device unbind for extcon drivers - Add new Maxim MAX14526 MUIC extcon driver and dt-binding document : The MAX14526 is designed to simplify interface requirements on portable devices by multiplexing common inputs (USB, UART, Microphone, Stereo Audio and Composite Video) on a single micro/mini USB connector. The USB input supports Hi-Speed USB and the audio/video inputs feature : This provides the following supported external connector detection - EXTCON_USB - EXTCON_USB_HOST - EXTCON_CHG_USB_FAST - EXTCON_DISP_MHL - Convert legacy DT binding to YAML of richktek,rt8973a-muic.yaml - Add missing DT binding information of that must include either id-gpios or vbus-gpios for linux,extcon-usb-gpio.yaml * tag 'extcon-next-for-6.18' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon: dt-bindings: extcon: linux,extcon-usb-gpio: GPIO must be provided dt-bindings: extcon: rt8973a: Convert DT bindings to YAML extcon: max14526: depends on I2C to prevent build warning/errors extcon: max14526: avoid defined but not used warning extcon: Add basic support for Maxim MAX14526 MUIC dt-bindings: extcon: Document Maxim MAX14526 MUIC extcon: adc-jack: Cleanup wakeup source only if it was enabled extcon: qcom-spmi-misc: Fix wakeup source leaks on device unbind extcon: fsa9480: Fix wakeup source leaks on device unbind extcon: axp288: Fix wakeup source leaks on device unbind extcon: adc-jack: Fix wakeup source leaks on device unbind
2025-09-16Merge tag 'iio-fixes-for-6.17b' of ↵Greg Kroah-Hartman
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next Jonathan writes: IIO: 2nd set of fixes for the 6.17 cycle (or 6.18 merge window) adi,ad5360 - Use a signed int type to be able to hold a potential error return. adi,ad5421 - Use a signed int type to be able to hold a potential error return. adi,adf4350 - Ensure rules on VCO frequency and prescaler values are met. - Fix a wrong offset for the clock divisor control field. xilinx,ams - Unmask alarms correctly if an event is disabled and re-enabled. - Fix a wrong register field mask. * tag 'iio-fixes-for-6.17b' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: iio: dac: ad5421: use int type to store negative error codes iio: dac: ad5360: use int type to store negative error codes iio: frequency: adf4350: Fix ADF4350_REG3_12BIT_CLKDIV_MODE iio: frequency: adf4350: Fix prescaler usage. iio: xilinx-ams: Fix AMS_ALARM_THR_DIRECT_MASK iio: xilinx-ams: Unmask interrupts after updating alarms iio/adc/pac1934: fix channel disable configuration
2025-09-16platform/x86: asus-wmi: Re-add extra keys to ignore_key_wlan quirkAntheas Kapenekakis
It turns out that the dual screen models use 0x5E for attaching and detaching the keyboard instead of 0x5F. So, re-add the codes by reverting commit cf3940ac737d ("platform/x86: asus-wmi: Remove extra keys from ignore_key_wlan quirk"). For our future reference, add a comment next to 0x5E indicating that it is used for that purpose. Fixes: cf3940ac737d ("platform/x86: asus-wmi: Remove extra keys from ignore_key_wlan quirk") Reported-by: Rahul Chandra <rahul@chandra.net> Closes: https://lore.kernel.org/all/10020-68c90c80-d-4ac6c580@106290038/ Cc: stable@kernel.org Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev> Link: https://patch.msgid.link/20250916072818.196462-1-lkml@antheas.dev Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-09-16Merge tag 'counter-updates-for-6.18' of ↵Greg Kroah-Hartman
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wbg/counter into char-misc-next William writes: Counter updates for 6.18 Includes a cleanup of the Counter subsystem sysfs attributes documentation component_id list to alphabetical order, and replaces superfluous error handling code in ecap_cnt_probe() with a call to device-managed devm_pm_runtime_enable(). * tag 'counter-updates-for-6.18' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wbg/counter: counter: ti-ecap-capture: Use devm_pm_runtime_enable() counter: Alphabetize component_id sysfs attributes Documentation list
2025-09-16platform/x86/amd/pmf: Support new ACPI ID AMDI0108Shyam Sundar S K
Include the ACPI ID AMDI0108, which is used on upcoming AMD platforms, in the PMF driver's list of supported devices. Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Link: https://patch.msgid.link/20250915090546.2759130-1-Shyam-sundar.S-k@amd.com Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-09-16HID: i2c-hid: Resolve touchpad issues on Dell systems during S4Mario Limonciello (AMD)
Dell systems utilize an EC-based touchpad emulation when the ACPI touchpad _DSM is not invoked. This emulation acts as a secondary master on the I2C bus, designed for scenarios where the I2C touchpad driver is absent, such as in BIOS menus. Typically, loading the i2c-hid module triggers the _DSM at initialization, disabling the EC-based emulation. However, if the i2c-hid module is missing from the boot kernel used for hibernation snapshot restoration, the _DSM remains uncalled, resulting in dual masters on the I2C bus and subsequent arbitration errors. This issue arises when i2c-hid resides in the rootfs instead of the kernel or initramfs. To address this, switch from using the SYSTEM_SLEEP_PM_OPS() macro to dedicated callbacks, introducing a specific callback for restoring the S4 image. This callback ensures the _DSM is invoked. Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2025-09-16drm/i915/backlight: Honor VESA eDP backlight luminance control capabilityAaron Ma
The VESA AUX backlight fails to be enable luminance based backlight mainpulation becaused luminance_set is false by default. Fix it by using luminance support control capabitliy. Fixes: e13af5166a359 ("drm/i915/backlight: Use drm helper to initialize edp backlight") Signed-off-by: Aaron Ma <aaron.ma@canonical.com> Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://lore.kernel.org/r/20250823121647.275834-1-aaron.ma@canonical.com (cherry picked from commit 72136efb875d8438c20b9c8ab72945d474933471) Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
2025-09-16rust: acpi: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Signed-off-by: Tamir Duberstein <tamird@gmail.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: of: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Link: https://github.com/Rust-for-Linux/linux/issues/1075 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: net: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Link: https://github.com/Rust-for-Linux/linux/issues/1075 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: miscdevice: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Link: https://github.com/Rust-for-Linux/linux/issues/1075 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: kunit: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Link: https://github.com/Rust-for-Linux/linux/issues/1075 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: firmware: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Link: https://github.com/Rust-for-Linux/linux/issues/1075 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: drm: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Link: https://github.com/Rust-for-Linux/linux/issues/1075 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: cpufreq: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Link: https://github.com/Rust-for-Linux/linux/issues/1075 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: configfs: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Also avoid `Deref<Target=BStr> for CStr` as that impl doesn't exist on `core::ffi::CStr`. Link: https://github.com/Rust-for-Linux/linux/issues/1075 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Acked-by: Andreas Hindborg <a.hindborg@kernel.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: auxiliary: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Link: https://github.com/Rust-for-Linux/linux/issues/1075 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16drm/panic: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Link: https://github.com/Rust-for-Linux/linux/issues/1075 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Acked-by: Jocelyn Falempe <jfalempe@redhat.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: device: use `kernel::{fmt,prelude::fmt!}`Tamir Duberstein
Reduce coupling to implementation details of the formatting machinery by avoiding direct use for `core`'s formatting traits and macros. Signed-off-by: Tamir Duberstein <tamird@gmail.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: sync: use `kernel::{fmt,prelude::fmt!}`Tamir Duberstein
Reduce coupling to implementation details of the formatting machinery by avoiding direct use for `core`'s formatting traits and macros. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: seq_file: use `kernel::{fmt,prelude::fmt!}`Tamir Duberstein
Reduce coupling to implementation details of the formatting machinery by avoiding direct use for `core`'s formatting traits and macros. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: kunit: use `kernel::{fmt,prelude::fmt!}`Tamir Duberstein
Reduce coupling to implementation details of the formatting machinery by avoiding direct use for `core`'s formatting traits and macros. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: file: use `kernel::{fmt,prelude::fmt!}`Tamir Duberstein
Reduce coupling to implementation details of the formatting machinery by avoiding direct use for `core`'s formatting traits and macros. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: device: use `kernel::{fmt,prelude::fmt!}`Tamir Duberstein
Reduce coupling to implementation details of the formatting machinery by avoiding direct use for `core`'s formatting traits and macros. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: block: use `kernel::{fmt,prelude::fmt!}`Tamir Duberstein
Reduce coupling to implementation details of the formatting machinery by avoiding direct use for `core`'s formatting traits and macros. Suggested-by: Alice Ryhl <aliceryhl@google.com> Link: https://rust-for-linux.zulipchat.com/#narrow/channel/288089-General/topic/Custom.20formatting/with/516476467 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Acked-by: Andreas Hindborg <a.hindborg@kernel.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16rust: alloc: use `kernel::{fmt,prelude::fmt!}`Tamir Duberstein
Reduce coupling to implementation details of the formatting machinery by avoiding direct use for `core`'s formatting traits and macros. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16gpu: nova-core: use `kernel::{fmt,prelude::fmt!}`Tamir Duberstein
Reduce coupling to implementation details of the formatting machinery by avoiding direct use for `core`'s formatting traits and macros. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-16PCI: endpoint: pci-epf-test: Add NULL check for DMA channels before releaseShin'ichiro Kawasaki
The fields dma_chan_tx and dma_chan_rx of the struct pci_epf_test can be NULL even after EPF initialization. Then it is prudent to check that they have non-NULL values before releasing the channels. Add the checks in pci_epf_test_clean_dma_chan(). Without the checks, NULL pointer dereferences happen and they can lead to a kernel panic in some cases: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050 Call trace: dma_release_channel+0x2c/0x120 (P) pci_epf_test_epc_deinit+0x94/0xc0 [pci_epf_test] pci_epc_deinit_notify+0x74/0xc0 tegra_pcie_ep_pex_rst_irq+0x250/0x5d8 irq_thread_fn+0x34/0xb8 irq_thread+0x18c/0x2e8 kthread+0x14c/0x210 ret_from_fork+0x10/0x20 Fixes: 8353813c88ef ("PCI: endpoint: Enable DMA tests for endpoints with DMA capabilities") Fixes: 5ebf3fc59bd2 ("PCI: endpoint: functions/pci-epf-test: Add DMA support to transfer data") Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> [mani: trimmed the stack trace] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20250916025756.34807-1-shinichiro.kawasaki@wdc.com
2025-09-16Merge branch 'x86/urgent' into x86/apic, to resolve conflictIngo Molnar
Conflicts: arch/x86/include/asm/sev.h Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-09-16RISC-V: KVM: Upgrade the supported SBI version to 3.0Atish Patra
Upgrade the SBI version to v3.0 so that corresponding features can be enabled in the guest. Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Atish Patra <atishp@rivosinc.com> Acked-by: Paul Walmsley <pjw@kernel.org> Link: https://lore.kernel.org/r/20250909-pmu_event_info-v6-8-d8f80cacb884@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16RISC-V: KVM: Implement get event info functionAtish Patra
The new get_event_info funciton allows the guest to query the presence of multiple events with single SBI call. Currently, the perf driver in linux guest invokes it for all the standard SBI PMU events. Support the SBI function implementation in KVM as well. Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Atish Patra <atishp@rivosinc.com> Acked-by: Paul Walmsley <pjw@kernel.org> Link: https://lore.kernel.org/r/20250909-pmu_event_info-v6-7-d8f80cacb884@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16RISC-V: KVM: No need of explicit writable slot checkAtish Patra
There is not much value in checking if a memslot is writable explicitly before a write as it may change underneath after the check. Rather, return invalid address error when write_guest fails as it checks if the slot is writable anyways. Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Acked-by: Paul Walmsley <pjw@kernel.org> Link: https://lore.kernel.org/r/20250909-pmu_event_info-v6-6-d8f80cacb884@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16drivers/perf: riscv: Export PMU event info functionAtish Patra
The event mapping function can be used in event info function to find out the corresponding SBI PMU event encoding during the get_event_info function as well. Refactor and export it so that it can be invoked from kvm and internal driver. Signed-off-by: Atish Patra <atishp@rivosinc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Acked-by: Paul Walmsley <pjw@kernel.org> Link: https://lore.kernel.org/r/20250909-pmu_event_info-v6-5-d8f80cacb884@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16drivers/perf: riscv: Implement PMU event info functionAtish Patra
With the new SBI PMU event info function, we can query the availability of the all standard SBI PMU events at boot time with a single ecall. This improves the bootime by avoiding making an SBI call for each standard PMU event. Since this function is defined only in SBI v3.0, invoke this only if the underlying SBI implementation is v3.0 or higher. Signed-off-by: Atish Patra <atishp@rivosinc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Acked-by: Paul Walmsley <pjw@kernel.org> Link: https://lore.kernel.org/r/20250909-pmu_event_info-v6-4-d8f80cacb884@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16RISC-V: KVM: Add support for Raw event v2Atish Patra
SBI v3.0 introduced a new raw event type v2 for wider mhpmeventX programming. Add the support in kvm for that. Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Atish Patra <atishp@rivosinc.com> Acked-by: Paul Walmsley <pjw@kernel.org> Link: https://lore.kernel.org/r/20250909-pmu_event_info-v6-3-d8f80cacb884@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16drivers/perf: riscv: Add raw event v2 supportAtish Patra
SBI v3.0 introduced a new raw event type that allows wider mhpmeventX width to be programmed via CFG_MATCH. Use the raw event v2 if SBI v3.0 is available. Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Atish Patra <atishp@rivosinc.com> Acked-by: Paul Walmsley <pjw@kernel.org> Link: https://lore.kernel.org/r/20250909-pmu_event_info-v6-2-d8f80cacb884@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16drivers/perf: riscv: Add SBI v3.0 flagAtish Patra
There are new PMU related features introduced in SBI v3.0. 1. Raw Event v2 which allows mhpmeventX value to be 56 bit wide. 2. Get Event info function to do a bulk query at one shot. Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Atish Patra <atishp@rivosinc.com> Acked-by: Paul Walmsley <pjw@kernel.org> Link: https://lore.kernel.org/r/20250909-pmu_event_info-v6-1-d8f80cacb884@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16KVM: riscv: selftests: Add SBI FWFT to get-reg-list testAnup Patel
KVM RISC-V now supports SBI FWFT, so add it to the get-reg-list test. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20250823155947.1354229-7-apatel@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16RISC-V: KVM: Implement ONE_REG interface for SBI FWFT stateAnup Patel
The KVM user-space needs a way to save/restore the state of SBI FWFT features so implement SBI extension ONE_REG callbacks. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20250823155947.1354229-6-apatel@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16RISC-V: KVM: Move copy_sbi_ext_reg_indices() to SBI implementationAnup Patel
The ONE_REG handling of SBI extension enable/disable registers and SBI extension state registers is already under SBI implementation. On similar lines, let's move copy_sbi_ext_reg_indices() under SBI implementation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20250823155947.1354229-5-apatel@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16RISC-V: KVM: Introduce optional ONE_REG callbacks for SBI extensionsAnup Patel
SBI extensions can have per-VCPU state which needs to be saved/restored through ONE_REG interface for Guest/VM migration. Introduce optional ONE_REG callbacks for SBI extensions so that ONE_REG implementation for an SBI extenion is part of the extension sources. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20250823155947.1354229-4-apatel@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16RISC-V: KVM: Introduce feature specific reset for SBI FWFTAnup Patel
The SBI FWFT feature values must be reset upon VCPU reset so introduce feature specific reset callback for this purpose. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Nutty Liu <nutty.liu@hotmail.com> Link: https://lore.kernel.org/r/20250823155947.1354229-3-apatel@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16RISC-V: KVM: Set initial value of hedeleg in kvm_arch_vcpu_create()Anup Patel
The hedeleg may be updated by ONE_REG interface before the VCPU is run at least once hence set the initial value of hedeleg in kvm_arch_vcpu_create() instead of kvm_riscv_vcpu_setup_config(). Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Nutty Liu <nutty.liu@hotmail.com> Link: https://lore.kernel.org/r/20250823155947.1354229-2-apatel@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16RISC-V: KVM: Prevent HGATP_MODE_BARE passedGuo Ren (Alibaba DAMO Academy)
Current kvm_riscv_gstage_mode_detect() assumes H-extension must have HGATP_MODE_SV39X4/SV32X4 at least, but the spec allows H-extension with HGATP_MODE_BARE alone. The KVM depends on !HGATP_MODE_BARE at least, so enhance the gstage-mode-detect to block HGATP_MODE_BARE. Move gstage-mode-check closer to gstage-mode-detect to prevent unnecessary init. Reviewed-by: Troy Mitchell <troy.mitchell@linux.dev> Reviewed-by: Nutty Liu <nutty.liu@hotmail.com> Signed-off-by: Guo Ren (Alibaba DAMO Academy) <guoren@kernel.org> Reviewed-by: Fangyu Yu <fangyu.yu@linux.alibaba.com> Link: https://lore.kernel.org/r/20250821142542.2472079-4-guoren@kernel.org Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16RISC-V: KVM: Remove unnecessary HGATP csr_readGuo Ren (Alibaba DAMO Academy)
The HGATP has been set to zero in gstage_mode_detect(), so there is no need to save the old context. Unify the code convention with gstage_mode_detect(). Reviewed-by: Fangyu Yu <fangyu.yu@linux.alibaba.com> Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com> Signed-off-by: Guo Ren (Alibaba DAMO Academy) <guoren@kernel.org> Reviewed-by: Nutty Liu <nutty.liu@hotmail.com> Link: https://lore.kernel.org/r/20250821142542.2472079-3-guoren@kernel.org Signed-off-by: Anup Patel <anup@brainfault.org>
generated by cgit v1.3 (git 2.53.0) at 2026-11-13 07:51:45 +0000