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[2/4] riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol

Message ID 20220518170254.3178923-3-heiko@sntech.de (mailing list archive)
State New, archived
Headers show
Series riscv: some svpbmt fixes | expand

Commit Message

Heiko Stuebner May 18, 2022, 5:02 p.m. UTC 
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(-)
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Patch

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.