linux-kernel - [PATCH v2 2/5] riscv: Improve description for RISCV_ISA

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Message-Id: <20220526205646.258337-3-heiko@sntech.de>
Date:   Thu, 26 May 2022 22:56:43 +0200
From:   Heiko Stuebner <heiko@...ech.de>
To:     palmer@...belt.com, paul.walmsley@...ive.com
Cc:     linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        wefu@...hat.com, guoren@...nel.org, mick@....forth.gr,
        samuel@...lland.org, cmuellner@...ux.com, philipp.tomsich@...ll.eu,
        hch@....de, Heiko Stuebner <heiko@...ech.de>
Subject: [PATCH v2 2/5] riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol

This improves the symbol's description to make it easier for
people to understand what it is about.

Suggested-by: Christoph Hellwig <hch@....de>
Suggested-by: Philipp Tomsich <philipp.tomsich@...ll.eu>
Signed-off-by: Heiko Stuebner <heiko@...ech.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