eb96b74019
The MCDI (Management CPU Driver Interface) is used as a protocol to communicate with the RPU firmware. It has pre-defined set of messages for different message exchanges between APU and RPU. 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/20230313132636.31850-5-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
20 lines
573 B
Plaintext
20 lines
573 B
Plaintext
# SPDX-License-Identifier: GPL-2.0
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#
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# CDX bus configuration
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#
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# Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
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#
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config CDX_BUS
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bool "CDX Bus driver"
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depends on OF && ARM64
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help
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Driver to enable Composable DMA Transfer(CDX) Bus. CDX bus
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exposes Fabric devices which uses composable DMA IP to the
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APU. CDX bus provides a mechanism for scanning and probing
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of CDX devices. CDX devices are memory mapped on system bus
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for embedded CPUs. CDX bus uses CDX controller and firmware
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to scan these CDX devices.
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source "drivers/cdx/controller/Kconfig"
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