Re: [PATCH v5 3/7] arm64/sysreg/tools: Move TRFCR definitions to sysreg

From: Mark Brown
Date: Tue Feb 20 2024 - 11:11:52 EST


On Tue, Feb 20, 2024 at 10:09:13AM +0000, James Clark wrote:
> Add separate definitions for ELx and EL2 as TRFCR_EL1 doesn't have CX.
> This also mirrors the previous definition so no code change is required.

This is also converting to automatic generation in the process.

> +SysregFields TRFCR_EL2
> +Res0 63:7
> +UnsignedEnum 6:5 TS
> + 0b0000 USE_TRFCR_EL1_TS
> + 0b0001 VIRTUAL
> + 0b0010 GUEST_PHYSICAL
> + 0b0011 PHYSICAL
> +EndEnum
> +Res0 4
> +Field 3 CX
> +Res0 2
> +Field 1 E2TRE
> +Field 0 E0HTRE
> +EndSysregFields

This has exactly one user and I'd not expect more so why have a separate
SysregFields?

> +# TRFCR_EL1 doesn't have the CX bit so redefine it without CX instead of
> +# using a shared definition between TRFCR_EL2 and TRFCR_EL1

This comment is reflecting the default state?

> +Sysreg TRFCR_EL1 3 0 1 2 1
> +Fields TRFCR_ELx
> +EndSysreg
> +
> +Sysreg TRFCR_EL2 3 4 1 2 1
> +Fields TRFCR_EL2
> +EndSysreg
> +
> +Sysreg TRFCR_EL12 3 5 1 2 1
> +Fields TRFCR_ELx
> +EndSysreg

These are generally sorted by encoding (simiarly to how sysreg.h was
sorted historically).

Attachment: signature.asc
Description: PGP signature