From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
Shuah Khan <skhan@linuxfoundation.org>,
Shuah Khan <shuah@kernel.org>
Cc: Alan Hayward <alan.hayward@arm.com>,
Luis Machado <luis.machado@arm.com>,
Salil Akerkar <Salil.Akerkar@arm.com>,
Basant Kumar Dwivedi <Basant.KumarDwivedi@arm.com>,
Szabolcs Nagy <szabolcs.nagy@arm.com>,
James Morse <james.morse@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kselftest@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
Mark Brown <broonie@kernel.org>
Subject: [PATCH v8 27/38] arm64/sme: Provide Kconfig for SME
Date: Tue, 25 Jan 2022 00:11:03 +0000 [thread overview]
Message-ID: <20220125001114.193425-28-broonie@kernel.org> (raw)
In-Reply-To: <20220125001114.193425-1-broonie@kernel.org>
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: Mark Brown <broonie@kernel.org>
---
arch/arm64/Kconfig | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 6978140edfa4..f60f3b04ddf5 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1839,6 +1839,17 @@ 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
--
2.30.2
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next prev parent reply other threads:[~2022-01-25 0:37 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-25 0:10 [PATCH v8 00/38] arm64/sme: Initial support for the Scalable Matrix Extension Mark Brown
2022-01-25 0:10 ` [PATCH v8 01/38] arm64: cpufeature: Always specify and use a field width for capabilities Mark Brown
2022-01-25 10:57 ` Suzuki K Poulose
2022-01-25 12:10 ` Mark Brown
2022-01-25 0:10 ` [PATCH v8 02/38] arm64: Add feature detection for fine grained traps Mark Brown
2022-01-25 0:10 ` [PATCH v8 03/38] kselftest/arm64: Remove local ARRAY_SIZE() definitions Mark Brown
2022-01-25 0:10 ` [PATCH v8 04/38] arm64/sme: Provide ABI documentation for SME Mark Brown
2022-01-25 0:10 ` [PATCH v8 05/38] arm64/sme: System register and exception syndrome definitions Mark Brown
2022-01-25 11:25 ` Marc Zyngier
2022-01-25 12:15 ` Mark Brown
2022-01-25 0:10 ` [PATCH v8 06/38] arm64/sme: Manually encode SME instructions Mark Brown
2022-01-25 0:10 ` [PATCH v8 07/38] arm64/sme: Early CPU setup for SME Mark Brown
2022-01-25 0:10 ` [PATCH v8 08/38] arm64/sme: Basic enumeration support Mark Brown
2022-01-25 0:10 ` [PATCH v8 09/38] arm64/sme: Identify supported SME vector lengths at boot Mark Brown
2022-01-25 0:10 ` [PATCH v8 10/38] arm64/sme: Implement sysctl to set the default vector length Mark Brown
2022-01-25 0:10 ` [PATCH v8 11/38] arm64/sme: Implement vector length configuration prctl()s Mark Brown
2022-01-25 0:10 ` [PATCH v8 12/38] arm64/sme: Implement support for TPIDR2 Mark Brown
2022-01-25 0:10 ` [PATCH v8 13/38] arm64/sme: Implement SVCR context switching Mark Brown
2022-01-25 0:10 ` [PATCH v8 14/38] arm64/sme: Implement streaming SVE " Mark Brown
2022-01-25 0:10 ` [PATCH v8 15/38] arm64/sme: Implement ZA " Mark Brown
2022-01-25 0:10 ` [PATCH v8 16/38] arm64/sme: Implement traps and syscall handling for SME Mark Brown
2022-01-25 0:10 ` [PATCH v8 17/38] arm64/sme: Disable ZA and streaming mode when handling signals Mark Brown
2022-01-25 0:10 ` [PATCH v8 18/38] arm64/sme: Implement streaming SVE signal handling Mark Brown
2022-01-25 0:10 ` [PATCH v8 19/38] arm64/sme: Implement ZA " Mark Brown
2022-01-25 0:10 ` [PATCH v8 20/38] arm64/sme: Implement ptrace support for streaming mode SVE registers Mark Brown
2022-01-25 0:10 ` [PATCH v8 21/38] arm64/sme: Add ptrace support for ZA Mark Brown
2022-01-25 0:10 ` [PATCH v8 22/38] arm64/sme: Disable streaming mode and ZA when flushing CPU state Mark Brown
2022-01-25 0:10 ` [PATCH v8 23/38] arm64/sme: Save and restore streaming mode over EFI runtime calls Mark Brown
2022-01-25 0:11 ` [PATCH v8 24/38] KVM: arm64: Hide SME system registers from guests Mark Brown
2022-01-25 0:11 ` [PATCH v8 25/38] KVM: arm64: Trap SME usage in guest Mark Brown
2022-01-25 11:27 ` Marc Zyngier
2022-01-25 12:25 ` Mark Brown
2022-01-25 13:21 ` Marc Zyngier
2022-01-25 14:25 ` Mark Brown
2022-01-25 0:11 ` [PATCH v8 26/38] KVM: arm64: Handle SME host state when running guests Mark Brown
2022-01-25 11:59 ` Marc Zyngier
2022-01-25 12:52 ` Mark Brown
2022-01-25 13:22 ` Marc Zyngier
2022-01-25 13:34 ` Mark Brown
2022-01-25 0:11 ` Mark Brown [this message]
2022-01-25 0:11 ` [PATCH v8 28/38] kselftest/arm64: sme: Add streaming SME support to vlset Mark Brown
2022-01-25 0:11 ` [PATCH v8 29/38] kselftest/arm64: Add tests for TPIDR2 Mark Brown
2022-01-25 0:11 ` [PATCH v8 30/38] kselftest/arm64: Extend vector configuration API tests to cover SME Mark Brown
2022-01-25 0:11 ` [PATCH v8 31/38] kselftest/arm64: sme: Provide streaming mode SVE stress test Mark Brown
2022-01-25 0:11 ` [PATCH v8 32/38] kselftest/arm64: signal: Allow tests to be incompatible with features Mark Brown
2022-01-25 0:11 ` [PATCH v8 33/38] kselftest/arm64: signal: Handle ZA signal context in core code Mark Brown
2022-01-25 0:11 ` [PATCH v8 34/38] kselftest/arm64: Add stress test for SME ZA context switching Mark Brown
2022-01-25 0:11 ` [PATCH v8 35/38] kselftest/arm64: signal: Add SME signal handling tests Mark Brown
2022-01-25 0:11 ` [PATCH v8 36/38] kselftest/arm64: Add streaming SVE to SVE ptrace tests Mark Brown
2022-01-25 0:11 ` [PATCH v8 37/38] kselftest/arm64: Add coverage for the ZA ptrace interface Mark Brown
2022-01-25 0:11 ` [PATCH v8 38/38] kselftest/arm64: Add SME support to syscall ABI test Mark Brown
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