[PATCH v9 3/7] firmware: arm_rmm: Move RSI support out of arch/arm64

[Jason Gunthorpe]

> The RSI SMCCC function IDs describe a firmware ABI and are not arm64
> architecture specific definitions. Follow-up changes need to use them from
> non-arch code, including drivers/firmware/smccc and the Arm CCA guest
> driver.
> 
> Move the complete Realm Service Interface (RSI) implementation from
> arch/arm64 to drivers/firmware/arm_rmm. The RSI SMCCC definitions and
> command helpers are also moved to include/linux so they can be shared by
> architecture code and firmware or driver code. This also keeps the
> firmware interface outside architecture code, as requested [1].
> 
> [1] https://lore.kernel.org/all/agsNO9cc7H-b0H8L@willie-the-truck
> 
> Signed-off-by: Aneesh Kumar K.V (Arm) <aneesh.kumar at kernel.org>

The sashiko remarks don't look useful

Reviewed-by: Jason Gunthorpe <jgg at nvidia.com>

> [ ... 321 lines skipped ... ]
> -#include <asm/rsi_smc.h>
> +#define RSI_PDEV_NAME "arm-cca-dev"

This name shows up on the smccc bus as a device, '-dev' doesn't seem
to make sense as a device name to me, I'd drop it.

And is this arm-cca or should it be called arm-rsi with a different SMCC device for
arm-rmi ?

-- 
Jason