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linux/drivers/cdx/controller/cdx_controller.c

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cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: Explicitly include correct DT includes The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Nipun Gupta <nipun.gupta@amd.com> Link: https://lore.kernel.org/r/20230717150355.1749845-1-robh@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-17 09:03:55 -06:00
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: add rpmsg communication channel for CDX RPMsg is used as a transport communication channel. This change introduces RPMsg driver and integrates it with the CDX controller. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-7-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:35 +05:30
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: add rpmsg communication channel for CDX RPMsg is used as a transport communication channel. This change introduces RPMsg driver and integrates it with the CDX controller. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-7-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:35 +05:30
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: add support for bus enable and disable CDX bus needs to be disabled before updating/writing devices in the FPGA. Once the devices are written, the bus shall be rescanned. This change provides sysfs entry to enable/disable the CDX bus. Co-developed-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://lore.kernel.org/r/20231017160505.10640-6-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-17 21:35:03 +05:30
cdx: add rpmsg communication channel for CDX RPMsg is used as a transport communication channel. This change introduces RPMsg driver and integrates it with the CDX controller. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-7-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:35 +05:30
cdx: add device attributes Create sysfs entry for CDX devices. Sysfs entries provided in each of the CDX device detected by the CDX controller - vendor id - device id - remove - reset of the device. - driver override Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Tarak Reddy <tarak.reddy@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-8-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:36 +05:30
cdx: add support for bus mastering Introduce cdx_set_master() and cdx_clear_master() APIs to support enable and disable of bus mastering. Drivers need to use these APIs to enable/disable DMAs from the CDX devices. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Link: https://lore.kernel.org/r/20230915045423.31630-1-nipun.gupta@amd.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2023-09-15 10:24:21 +05:30
cdx: add device attributes Create sysfs entry for CDX devices. Sysfs entries provided in each of the CDX device detected by the CDX controller - vendor id - device id - remove - reset of the device. - driver override Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Tarak Reddy <tarak.reddy@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-8-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:36 +05:30
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: Register cdx bus as a device on cdx subsystem While scanning for CDX devices, register newly discovered bus as a cdx device. CDX device attributes are visible based on device type. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://lore.kernel.org/r/20231017160505.10640-5-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-17 21:35:02 +05:30
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: Register cdx bus as a device on cdx subsystem While scanning for CDX devices, register newly discovered bus as a cdx device. CDX device attributes are visible based on device type. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://lore.kernel.org/r/20231017160505.10640-5-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-17 21:35:02 +05:30
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: Register cdx bus as a device on cdx subsystem While scanning for CDX devices, register newly discovered bus as a cdx device. CDX device attributes are visible based on device type. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://lore.kernel.org/r/20231017160505.10640-5-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-17 21:35:02 +05:30
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: add support for bus enable and disable CDX bus needs to be disabled before updating/writing devices in the FPGA. Once the devices are written, the bus shall be rescanned. This change provides sysfs entry to enable/disable the CDX bus. Co-developed-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://lore.kernel.org/r/20231017160505.10640-6-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-17 21:35:03 +05:30
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: add device attributes Create sysfs entry for CDX devices. Sysfs entries provided in each of the CDX device detected by the CDX controller - vendor id - device id - remove - reset of the device. - driver override Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Tarak Reddy <tarak.reddy@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-8-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:36 +05:30
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: add rpmsg communication channel for CDX RPMsg is used as a transport communication channel. This change introduces RPMsg driver and integrates it with the CDX controller. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-7-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:35 +05:30
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: add rpmsg communication channel for CDX RPMsg is used as a transport communication channel. This change introduces RPMsg driver and integrates it with the CDX controller. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-7-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:35 +05:30
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: add rpmsg communication channel for CDX RPMsg is used as a transport communication channel. This change introduces RPMsg driver and integrates it with the CDX controller. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-7-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:35 +05:30
cdx: add cdx controller CDX controller uses MCDI interface as a protocol to communicate with the RPU firmware and registers the detected CDX devices on the CDX bus. It also uses RPMsg as the communication channel with the Firmware. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-6-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-13 18:56:34 +05:30
cdx: Create symbol namespaces for cdx subsystem Create CDX_BUS and CDX_BUS_CONTROLLER symbol namespace for cdx bus subsystem. CDX controller modules are required to import symbols from CDX_BUS_CONTROLLER namespace and other than controller modules to import from CDX_BUS namespace. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://lore.kernel.org/r/20231017160505.10640-4-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-17 21:35:01 +05:30