user/sven/linux.git/include/linux/fsl/mc.h, branch v5.10.74

bus/fsl-mc: Extend ICID size from 16bit to 32bit

2020-10-02T14:05:02Z

In virtual machines the device-id range is defined between 0x10000-0x20000. The reason for using such a large range is to avoid overlapping with the PCI range. Reviewed-by: Laurentiu Tudor Acked-by: Laurentiu Tudor Signed-off-by: Bharat Bhushan Signed-off-by: Laurentiu Tudor Signed-off-by: Diana Craciun Link: https://lore.kernel.org/r/20200929085441.17448-13-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman

bus/fsl-mc: Export IRQ pool handling functions to be used by VFIO

2020-10-02T14:05:02Z

The IRQ pool handling functions can be used by both DPRC driver and VFIO. Adapt and export those functions. Reviewed-by: Laurentiu Tudor Acked-by: Laurentiu Tudor Signed-off-by: Diana Craciun Link: https://lore.kernel.org/r/20200929085441.17448-12-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman

bus/fsl-mc: Add a container setup function

2020-10-02T14:05:01Z

Both DPRC driver and VFIO driver use the same initialization code for the DPRC. Introduced a new function which groups this initialization code. The function is exported and may be used by VFIO as well. Reviewed-by: Laurentiu Tudor Acked-by: Laurentiu Tudor Signed-off-by: Diana Craciun Link: https://lore.kernel.org/r/20200929085441.17448-10-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman

bus/fsl-mc: Export a cleanup function for DPRC

2020-10-02T14:05:01Z

Create and export a cleanup function for DPRC. The function is used by the DPRC driver, but it will be used by the VFIO driver as well. Reviewed-by: Laurentiu Tudor Acked-by: Laurentiu Tudor Signed-off-by: Diana Craciun Link: https://lore.kernel.org/r/20200929085441.17448-9-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman

bus/fsl-mc: Export dprc_scan/dprc_remove functions to be used by multiple entities

2020-10-02T14:05:01Z

Currently the DPRC scan function is used only by the bus driver. But the same functionality will be needed by the VFIO driver. To support this, the dprc scan function was exported and a little bit adjusted to fit both scenarios. Also the scan mutex initialization is done when the bus object is created, not in dprc_probe in order to be used by both VFIO and bus driver. Similarily dprc_remove_devices is exported to be used by VFIO. Reviewed-by: Laurentiu Tudor Acked-by: Laurentiu Tudor Signed-off-by: Diana Craciun Link: https://lore.kernel.org/r/20200929085441.17448-8-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman

bus/fsl-mc: Add dprc-reset-container support

2020-10-02T14:05:01Z

DPRC reset is required by VFIO-mc in order to stop a device to further generate DMA transactions. Reviewed-by: Laurentiu Tudor Acked-by: Laurentiu Tudor Signed-off-by: Bharat Bhushan Signed-off-by: Laurentiu Tudor Signed-off-by: Diana Craciun Link: https://lore.kernel.org/r/20200929085441.17448-7-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman

bus/fsl-mc: Set the QMAN/BMAN region flags

2020-10-02T14:05:01Z

The QMAN region is memory mapped, so it should be of type IORESOURCE_MEM. The region flags bits were wrongly used to pass additional information. Use the bus specific bits for this purpose. Reviewed-by: Laurentiu Tudor Acked-by: Laurentiu Tudor Signed-off-by: Diana Craciun Link: https://lore.kernel.org/r/20200929085441.17448-5-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman

bus/fsl-mc: add support for 'driver_override' in the mc-bus

2020-10-02T14:05:01Z

This patch is required for vfio-fsl-mc meta driver to successfully bind layerscape container devices for device passthrough. This patch adds a mechanism to allow a layerscape device to specify a driver rather than a layerscape driver provide a device match. Example to allow a device (dprc.1) to specifically bind with driver (vfio-fsl-mc):- - echo vfio-fsl-mc > /sys/bus/fsl-mc/devices/dprc.1/driver_override - echo dprc.1 > /sys/bus/fsl-mc/drivers/fsl_mc_dprc/unbind - echo dprc.1 > /sys/bus/fsl-mc/drivers/vfio-fsl-mc/bind Reviewed-by: Laurentiu Tudor Acked-by: Laurentiu Tudor Signed-off-by: Bharat Bhushan Signed-off-by: Laurentiu Tudor Signed-off-by: Diana Craciun Link: https://lore.kernel.org/r/20200929085441.17448-4-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman

bus: fsl-mc: use raw spin lock to serialize mc cmds

2020-07-23T14:54:33Z

Replace the spinlock that serializes the MC commands with a raw spinlock. This is needed for the RT kernel because there are MC commands sent in interrupt context. Signed-off-by: Laurentiu Tudor Signed-off-by: Ioana Ciornei Reviewed-by: Laurentiu Tudor Link: https://lore.kernel.org/r/20200717154800.17169-3-ioana.ciornei@nxp.com Signed-off-by: Greg Kroah-Hartman

bus: fsl-mc: add missing device types

2020-07-23T14:54:33Z

The MC bus has different types of devices that can be discovered on the bus. Add the missing device types. Signed-off-by: Ioana Ciornei Reviewed-by: Laurentiu Tudor Link: https://lore.kernel.org/r/20200717154800.17169-2-ioana.ciornei@nxp.com Signed-off-by: Greg Kroah-Hartman