kernel.git/drivers/platform/x86/amd/hsmp, branch linux-6.17.y

platform/x86/amd/hsmp: Ensure success even if hwmon registration fails

2025-08-12T12:05:42Z

Even if hwmon registration fails, HSMP remains accessible through the device file, so the operation should return success. Signed-off-by: Suma Hegde Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20250804101551.89866-1-suma.hegde@amd.com Signed-off-by: Ilpo Järvinen

platform/x86/amd/hsmp: Ensure sock->metric_tbl_addr is non-NULL

2025-08-12T12:05:03Z

If metric table address is not allocated, accessing metrics_bin will result in a NULL pointer dereference, so add a check. Fixes: 5150542b8ec5 ("platform/x86/amd/hsmp: add support for metrics tbl") Signed-off-by: Suma Hegde Link: https://lore.kernel.org/r/20250807100637.952729-1-suma.hegde@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

Merge tag 'driver-core-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

2025-07-29T19:15:39Z

Pull driver core updates from Danilo Krummrich: "debugfs: - Remove unneeded debugfs_file_{get,put}() instances - Remove last remnants of debugfs_real_fops() - Allow storing non-const void * in struct debugfs_inode_info::aux sysfs: - Switch back to attribute_group::bin_attrs (treewide) - Switch back to bin_attribute::read()/write() (treewide) - Constify internal references to 'struct bin_attribute' Support cache-ids for device-tree systems: - Add arch hook arch_compact_of_hwid() - Use arch_compact_of_hwid() to compact MPIDR values on arm64 Rust: - Device: - Introduce CoreInternal device context (for bus internal methods) - Provide generic drvdata accessors for bus devices - Provide Driver::unbind() callbacks - Use the infrastructure above for auxiliary, PCI and platform - Implement Device::as_bound() - Rename Device::as_ref() to Device::from_raw() (treewide) - Implement fwnode and device property abstractions - Implement example usage in the Rust platform sample driver - Devres: - Remove the inner reference count (Arc) and use pin-init instead - Replace Devres::new_foreign_owned() with devres::register() - Require T to be Send in Devres - Initialize the data kept inside a Devres last - Provide an accessor for the Devres associated Device - Device ID: - Add support for ACPI device IDs and driver match tables - Split up generic device ID infrastructure - Use generic device ID infrastructure in net::phy - DMA: - Implement the dma::Device trait - Add DMA mask accessors to dma::Device - Implement dma::Device for PCI and platform devices - Use DMA masks from the DMA sample module - I/O: - Implement abstraction for resource regions (struct resource) - Implement resource-based ioremap() abstractions - Provide platform device accessors for I/O (remap) requests - Misc: - Support fallible PinInit types in Revocable - Implement Wrapper for Opaque - Merge pin-init blanket dependencies (for Devres) Misc: - Fix OF node leak in auxiliary_device_create() - Use util macros in device property iterators - Improve kobject sample code - Add device_link_test() for testing device link flags - Fix typo in Documentation/ABI/testing/sysfs-kernel-address_bits - Hint to prefer container_of_const() over container_of()" * tag 'driver-core-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (84 commits) rust: io: fix broken intra-doc links to `platform::Device` rust: io: fix broken intra-doc link to missing `flags` module rust: io: mem: enable IoRequest doc-tests rust: platform: add resource accessors rust: io: mem: add a generic iomem abstraction rust: io: add resource abstraction rust: samples: dma: set DMA mask rust: platform: implement the `dma::Device` trait rust: pci: implement the `dma::Device` trait rust: dma: add DMA addressing capabilities rust: dma: implement `dma::Device` trait rust: net::phy Change module_phy_driver macro to use module_device_table macro rust: net::phy represent DeviceId as transparent wrapper over mdio_device_id rust: device_id: split out index support into a separate trait device: rust: rename Device::as_ref() to Device::from_raw() arm64: cacheinfo: Provide helper to compress MPIDR value into u32 cacheinfo: Add arch hook to compress CPU h/w id into 32 bits for cache-id cacheinfo: Set cache 'id' based on DT data container_of: Document container_of() is not to be used in new code driver core: auxiliary bus: fix OF node leak ...

platform/x86/amd/hsmp: Enhance the print messages to prevent confusion

2025-07-09T12:21:50Z

When the HSMP ACPI device is present, loading the amd_hsmp.ko module incorrectly displays the message "HSMP is not supported on Family:%x model:%x\n" despite being supported by the hsmp_acpi.ko module, leading to confusion. To address this issue, relocate the acpi_dev_present() check to the beginning of the hsmp_plt_init() and revise the print message to better reflect the current support status. Additionally, add more error messages in the error paths and debug messages to indicate successful probing for both hsmp_acpi.ko and amd_hsmp.ko modules. Reviewed-by: Naveen Krishna Chatradhi Signed-off-by: Suma Hegde Link: https://lore.kernel.org/r/20250709105413.2487851-1-suma.hegde@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

Merge branch 'fixes' into for-next

2025-07-02T10:30:30Z

Merge fixes back into for-next to be able to take dell_rbu change that is build on top of fixes material, and to bring lenovo related changes in sync after the move under lenovo/ subdir in the for-next branch and diverging changes in the fixes branch.

Merge 6.16-rc3 into driver-core-next

2025-06-23T05:53:36Z

We need the driver-core fixes that are in 6.16-rc3 into here as well to build on top of. Signed-off-by: Greg Kroah-Hartman

sysfs: treewide: switch back to attribute_group::bin_attrs

2025-06-17T08:44:15Z

The normal bin_attrs field can now handle const pointers. This makes the _new variant unnecessary. Switch all users back. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20250530-sysfs-const-bin_attr-final-v3-4-724bfcf05b99@weissschuh.net Signed-off-by: Greg Kroah-Hartman

sysfs: treewide: switch back to bin_attribute::read()/write()

2025-06-17T08:44:13Z

The bin_attribute argument of bin_attribute::read() is now const. This makes the _new() callbacks unnecessary. Switch all users back. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20250530-sysfs-const-bin_attr-final-v3-3-724bfcf05b99@weissschuh.net Signed-off-by: Greg Kroah-Hartman

platform/x86/amd/hsmp: Use IS_ENABLED() instead of IS_REACHABLE()

2025-06-09T09:37:02Z

IS_REACHABLE() was required when CONFIG_HWMON was set to m and HSMP to y. However, commit 69157b00b526 ("platform/x86/amd/hsmp: fix building with CONFIG_HWMON=m") added a HWMON dependency for HSMP in Kconfig. With this change, using IS_ENABLED() is sufficient. Add the missing header file as well. Signed-off-by: Suma Hegde Link: https://lore.kernel.org/r/20250603055807.2503028-1-suma.hegde@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

x86/platform/amd: replace down_timeout() with down_interruptible()

2025-06-09T07:50:42Z

Currently hsmp_send_message() uses down_timeout() with a 100ms timeout to take the semaphore. However __hsmp_send_message(), the content of the critical section, has a sleep in it. On systems with significantly delayed scheduling behaviour this may take over 100ms. Convert this method to down_interruptible(). Leave the error handling the same as the documentation currently is not specific about what error is returned. Previous behaviour: a caller who competes with another caller stuck in the critical section due to scheduler delays would receive -ETIME. New behaviour: a caller who competes with another caller stuck in the critical section due to scheduler delays will complete successfully. Reviewed-by: Suma Hegde Tested-by: Suma Hegde Signed-off-by: Jake Hillion Link: https://lore.kernel.org/r/20250605-amd-hsmp-v2-2-a811bc3dd74a@hillion.co.uk Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen