Re: [PATCH v12 10/40] arm64/sme: Basic enumeration support

On Fri, Feb 25, 2022 at 04:58:53PM +0000, Mark Brown wrote:

+HWCAP2_SME

• Functionality implied by ID_AA64PFR1_EL1.SME == 0b0001, as described
• by Documentation/arm64/sme.rst.

+HWCAP2_SME_I16I64

• Functionality implied by ID_AA64SMFR0_EL1.I16I64 == 0b1111.

+HWCAP2_SME_F64F64

• Functionality implied by ID_AA64SMFR0_EL1.F64F64 == 0b1.

+HWCAP2_SME_I8I32

• Functionality implied by ID_AA64SMFR0_EL1.I8I32 == 0b1111.

+HWCAP2_SME_F16F32

• Functionality implied by ID_AA64SMFR0_EL1.F16F32 == 0b1.

+HWCAP2_SME_B16F32

• Functionality implied by ID_AA64SMFR0_EL1.B16F32 == 0b1.

+HWCAP2_SME_F32F32

• Functionality implied by ID_AA64SMFR0_EL1.F32F32 == 0b1.

+HWCAP2_SME_FA64

• Functionality implied by ID_AA64SMFR0_EL1.FA64 == 0b1.

Without any strong opinion only exposing MRS emulation for these, I guess we go ahead with adding all these new HWCAPs.

Reviewed-by: Catalin Marinas catalin.marinas@arm.com