From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@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>,
linux-arm-kernel@lists.infradead.org,
linux-kselftest@vger.kernel.org, Mark Brown <broonie@kernel.org>
Subject: [PATCH v4 25/33] arm64/sme: Provide Kconfig for SME
Date: Thu, 21 Oct 2021 19:07:14 +0100 [thread overview]
Message-ID: <20211021180722.3699248-26-broonie@kernel.org> (raw)
In-Reply-To: <20211021180722.3699248-1-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 there is no
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.
Since there is currently no support for KVM and no handling of either
streaming mode or ZA with KVM the option the feature is marked as being
incompatible with KVM and not enabled by default.
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 5c7ae4c3954b..f7004dd0a1b4 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1719,6 +1719,17 @@ 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"
+ depends on ARM64_SVE
+ depends on !KVM
+ 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
WARNING: multiple messages have this Message-ID (diff)
From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@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>,
linux-arm-kernel@lists.infradead.org,
linux-kselftest@vger.kernel.org, Mark Brown <broonie@kernel.org>
Subject: [PATCH v4 25/33] arm64/sme: Provide Kconfig for SME
Date: Thu, 21 Oct 2021 19:07:14 +0100 [thread overview]
Message-ID: <20211021180722.3699248-26-broonie@kernel.org> (raw)
In-Reply-To: <20211021180722.3699248-1-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 there is no
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.
Since there is currently no support for KVM and no handling of either
streaming mode or ZA with KVM the option the feature is marked as being
incompatible with KVM and not enabled by default.
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 5c7ae4c3954b..f7004dd0a1b4 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1719,6 +1719,17 @@ 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"
+ depends on ARM64_SVE
+ depends on !KVM
+ 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:[~2021-10-21 18:09 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-21 18:06 [PATCH v4 00/33] arm64/sme: Initial support for the Scalable Matrix Extension Mark Brown
2021-10-21 18:06 ` Mark Brown
2021-10-21 18:06 ` [PATCH v4 01/33] arm64/sve: Make sysctl interface for SVE reusable by SME Mark Brown
2021-10-21 18:06 ` Mark Brown
2021-10-21 18:06 ` [PATCH v4 02/33] arm64/sve: Generalise vector length configuration prctl() for SME Mark Brown
2021-10-21 18:06 ` Mark Brown
2021-10-21 18:06 ` [PATCH v4 03/33] kselftest/arm64: Parameterise ptrace vector length information Mark Brown
2021-10-21 18:06 ` Mark Brown
2021-10-21 18:06 ` [PATCH v4 04/33] kselftest/arm64: Allow signal tests to trigger from a function Mark Brown
2021-10-21 18:06 ` Mark Brown
2021-10-21 18:06 ` [PATCH v4 05/33] tools/nolibc: Implement gettid() Mark Brown
2021-10-21 18:06 ` Mark Brown
2021-10-21 18:06 ` [PATCH v4 06/33] arm64/sme: Provide ABI documentation for SME Mark Brown
2021-10-21 18:06 ` Mark Brown
[not found] ` <VI1PR08MB3919C2F171F2185FB3500DD08B839@VI1PR08MB3919.eurprd08.prod.outlook.com>
2021-10-26 13:47 ` Mark Brown
2021-10-26 13:47 ` Mark Brown
2021-10-27 11:14 ` Szabolcs Nagy
2021-10-27 11:14 ` Szabolcs Nagy
2021-10-21 18:06 ` [PATCH v4 07/33] arm64/sme: System register and exception syndrome definitions Mark Brown
2021-10-21 18:06 ` Mark Brown
2021-10-21 18:06 ` [PATCH v4 08/33] arm64/sme: Define macros for manually encoding SME instructions Mark Brown
2021-10-21 18:06 ` Mark Brown
2021-10-21 18:06 ` [PATCH v4 09/33] arm64/sme: Early CPU setup for SME Mark Brown
2021-10-21 18:06 ` Mark Brown
2021-10-21 18:06 ` [PATCH v4 10/33] arm64/sme: Basic enumeration support Mark Brown
2021-10-21 18:06 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 11/33] arm64/sme: Identify supported SME vector lengths at boot Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 12/33] arm64/sme: Implement sysctl to set the default vector length Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 13/33] arm64/sme: Implement vector length configuration prctl()s Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 14/33] arm64/sme: Implement support for TPIDR2 Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 15/33] arm64/sme: Implement SVCR context switching Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 16/33] arm64/sme: Implement streaming SVE " Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 17/33] arm64/sme: Implement ZA " Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 18/33] arm64/sme: Implement traps and syscall handling for SME Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 19/33] arm64/sme: Implement streaming SVE signal handling Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 20/33] arm64/sme: Implement ZA " Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 21/33] arm64/sme: Implement ptrace support for streaming mode SVE registers Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 22/33] arm64/sme: Add ptrace support for ZA Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 23/33] arm64/sme: Disable streaming mode and ZA when flushing CPU state Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 24/33] arm64/sme: Save and restore streaming mode over EFI runtime calls Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` Mark Brown [this message]
2021-10-21 18:07 ` [PATCH v4 25/33] arm64/sme: Provide Kconfig for SME Mark Brown
2021-10-21 18:07 ` [PATCH v4 26/33] kselftest/arm64: sme: Add streaming SME support to vlset Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 27/33] kselftest/arm64: Add tests for TPIDR2 Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 28/33] kselftest/arm64: Extend vector configuration API tests to cover SME Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 29/33] kselftest/arm64: sme: Provide streaming mode SVE stress test Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 30/33] kselftest/arm64: Add stress test for SME ZA context switching Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 31/33] kselftest/arm64: signal: Add SME signal handling tests Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 32/33] kselftest/arm64: Add streaming SVE to SVE ptrace tests Mark Brown
2021-10-21 18:07 ` Mark Brown
2021-10-21 18:07 ` [PATCH v4 33/33] kselftest/arm64: Add coverage for the ZA ptrace interface Mark Brown
2021-10-21 18:07 ` Mark Brown
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