From: Heiko Stuebner <heiko@sntech.de> To: palmer@dabbelt.com, paul.walmsley@sifive.com Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, wefu@redhat.com, guoren@kernel.org, mick@ics.forth.gr, samuel@sholland.org, cmuellner@linux.com, philipp.tomsich@vrull.eu, hch@lst.de, Heiko Stuebner <heiko@sntech.de> Subject: [PATCH 2/4] riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol Date: Wed, 18 May 2022 19:02:52 +0200 [thread overview] Message-ID: <20220518170254.3178923-3-heiko@sntech.de> (raw) In-Reply-To: <20220518170254.3178923-1-heiko@sntech.de> This improves the symbol's description to make it easier for people to understand what it is about. Suggested-by: Christoph Hellwig <hch@lst.de> Suggested-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Signed-off-by: Heiko Stuebner <heiko@sntech.de> --- arch/riscv/Kconfig | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 65285b980134..a4b299ad4473 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -356,8 +356,13 @@ config RISCV_ISA_SVPBMT select RISCV_ALTERNATIVE default y help - Adds support to dynamically detect the presence of the SVPBMT extension - (Supervisor-mode: page-based memory types) and enable its usage. + Adds support to dynamically detect the presence of the SVPBMT + ISA-extension (Supervisor-mode: page-based memory types) and + enable its usage. + + The memory type for a page contains a combination of attributes + that indicate the cacheability, idempotency, and ordering + properties for access to that page. The SVPBMT extension is only available on 64Bit cpus. -- 2.35.1
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From: Heiko Stuebner <heiko@sntech.de> To: palmer@dabbelt.com, paul.walmsley@sifive.com Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, wefu@redhat.com, guoren@kernel.org, mick@ics.forth.gr, samuel@sholland.org, cmuellner@linux.com, philipp.tomsich@vrull.eu, hch@lst.de, Heiko Stuebner <heiko@sntech.de> Subject: [PATCH 2/4] riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol Date: Wed, 18 May 2022 19:02:52 +0200 [thread overview] Message-ID: <20220518170254.3178923-3-heiko@sntech.de> (raw) In-Reply-To: <20220518170254.3178923-1-heiko@sntech.de> This improves the symbol's description to make it easier for people to understand what it is about. Suggested-by: Christoph Hellwig <hch@lst.de> Suggested-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Signed-off-by: Heiko Stuebner <heiko@sntech.de> --- arch/riscv/Kconfig | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 65285b980134..a4b299ad4473 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -356,8 +356,13 @@ config RISCV_ISA_SVPBMT select RISCV_ALTERNATIVE default y help - Adds support to dynamically detect the presence of the SVPBMT extension - (Supervisor-mode: page-based memory types) and enable its usage. + Adds support to dynamically detect the presence of the SVPBMT + ISA-extension (Supervisor-mode: page-based memory types) and + enable its usage. + + The memory type for a page contains a combination of attributes + that indicate the cacheability, idempotency, and ordering + properties for access to that page. The SVPBMT extension is only available on 64Bit cpus. -- 2.35.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2022-05-18 17:03 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-05-18 17:02 [PATCH 0/4] riscv: some svpbmt fixes Heiko Stuebner 2022-05-18 17:02 ` Heiko Stuebner 2022-05-18 17:02 ` [PATCH 1/4] riscv: drop cpufeature_apply_feature tracking variable Heiko Stuebner 2022-05-18 17:02 ` Heiko Stuebner 2022-05-18 17:02 ` Heiko Stuebner [this message] 2022-05-18 17:02 ` [PATCH 2/4] riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol Heiko Stuebner 2022-05-18 17:02 ` [PATCH 3/4] riscv: make patch-function pointer more generic in cpu_manufacturer_info struct Heiko Stuebner 2022-05-18 17:02 ` Heiko Stuebner 2022-05-18 17:02 ` [PATCH 4/4] riscv: fix dependency for t-head errata Heiko Stuebner 2022-05-18 17:02 ` Heiko Stuebner 2022-05-20 7:55 ` Guo Ren 2022-05-20 7:55 ` Guo Ren 2022-05-26 20:58 ` [PATCH 0/4] riscv: some svpbmt fixes Heiko Stübner 2022-05-26 20:58 ` Heiko Stübner
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