Nipun Gupta 0e439ba38e cdx: add MSI support for CDX bus ... Add CDX-MSI domain per CDX controller with gic-its domain as a parent, to support MSI for CDX devices. CDX devices allocate MSIs from the CDX domain. Also, introduce APIs to alloc and free IRQs for CDX domain. In CDX subsystem firmware is a controller for all devices and their configuration. CDX bus controller sends all the write_msi_msg commands to firmware running on RPU and the firmware interfaces with actual devices to pass this information to devices Since, CDX controller is the only way to communicate with the Firmware for MSI write info, CDX domain per controller required in contrast to having a CDX domain per device. Co-developed-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Co-developed-by: Abhijit Gangurde <abhijit.gangurde@amd.com> 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> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20240226082816.100872-1-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-03-07 21:52:03 +00:00
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controller	cdx: add MSI support for CDX bus	2024-03-07 21:52:03 +00:00
cdx_msi.c	cdx: add MSI support for CDX bus	2024-03-07 21:52:03 +00:00
cdx.c	cdx: add MSI support for CDX bus	2024-03-07 21:52:03 +00:00
cdx.h	cdx: add MSI support for CDX bus	2024-03-07 21:52:03 +00:00
Kconfig
Makefile	cdx: add MSI support for CDX bus	2024-03-07 21:52:03 +00:00