Changes in sysfs-bus-platform

654e4d5d - ABI: sysfs-bus-platform: add modalias description

Mon, 27 Sep 2021 13:59:50 +0000

ABI: sysfs-bus-platform: add modalias descriptionDefine the modalias parameter for platform devices, includingthe ones exposed via devicetree.Acked-by: Barry Song Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/9cdebbad008886b1d09f5f3ac5d88bee19f08d97.1632750608.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-platform

00ed1401 - platform-msi: Add ABI to show msi_irqs of platform devices

Fri, 13 Aug 2021 03:56:28 +0000

platform-msi: Add ABI to show msi_irqs of platform devicesPCI devices expose the associated MSI interrupts via sysfs, but platformdevices which utilize MSI interrupts do not. This information is importantfor user space tools to optimize affinity settings.Utilize the generic MSI sysfs facility to expose this information forplatform MSI.Signed-off-by: Barry Song Signed-off-by: Thomas Gleixner Acked-by: Greg Kroah-Hartman Acked-by: Bjorn Helgaas Acked-by: Marc Zyngier Link: https://lore.kernel.org/r/20210813035628.6844-3-21cnbao@gmail.com List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-platform

4a60406d - driver core: platform: expose numa_node to users in sysfs

Fri, 19 Jun 2020 03:00:45 +0000

driver core: platform: expose numa_node to users in sysfsSome platform devices like ARM SMMU are memory-mapped and populated by ACPI/IORT.In this case, NUMA topology of those platform devices are exported by firmware aswell. Software might care about the numa_node of those devices in order to achieveNUMA locality.This patch will show the numa_node for this kind of devices in sysfs. For thoseplatform devices without numa, numa_node won't be visible.Cc: Prime Zeng Cc: Robin Murphy Signed-off-by: Barry Song Link: https://lore.kernel.org/r/20200619030045.81956-1-song.bao.hua@hisilicon.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-platform

3d713e0e - driver core: platform: add device binding path 'driver_override'

Tue, 03 Jun 2014 00:42:58 +0000

driver core: platform: add device binding path 'driver_override'Needed by platform device drivers, such as the upcomingvfio-platform driver, in order to bypass the existing OF, ACPI,id_table and name string matches, and successfully be able to bebound to any device, like so:echo vfio-platform > /sys/bus/platform/devices/fff51000.ethernet/driver_overrideecho fff51000.ethernet > /sys/bus/platform/devices/fff51000.ethernet/driver/unbindecho fff51000.ethernet > /sys/bus/platform/drivers_probeThis mimics "PCI: Introduce new device binding path usingpci_dev.driver_override", which is an interface enhancementfor more deterministic PCI device binding, e.g., when in thepresence of hotplug.Reviewed-by: Alex Williamson Reviewed-by: Alexander Graf Reviewed-by: Stuart Yoder Signed-off-by: Kim Phillips Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-platform