Commit a1f4ccd2 authored by Mark Brown's avatar Mark Brown Committed by Catalin Marinas

arm64/sme: Provide Kconfig for SME

Now that basline support for the Scalable Matrix Extension (SME) is present
introduce the Kconfig option allowing it to be built. While the feature
registers don't impose a strong requirement for a system with SME to
support SVE at runtime the support for streaming mode SVE is mostly
shared with normal SVE so depend on SVE.
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Reviewed-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220419112247.711548-28-broonie@kernel.orgSigned-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 861262ab
......@@ -1939,6 +1939,17 @@ config ARM64_SVE
booting the kernel. If unsure and you are not observing these
symptoms, you should assume that it is safe to say Y.
config ARM64_SME
bool "ARM Scalable Matrix Extension support"
default y
depends on ARM64_SVE
help
The Scalable Matrix Extension (SME) is an extension to the AArch64
execution state which utilises a substantial subset of the SVE
instruction set, together with the addition of new architectural
register state capable of holding two dimensional matrix tiles to
enable various matrix operations.
config ARM64_MODULE_PLTS
bool "Use PLTs to allow module memory to spill over into vmalloc area"
depends on MODULES
......
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