[PATCH v2 2/5] riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol

From: Heiko Stuebner
Date: Thu May 26 2022 - 16:57:12 EST


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

Suggested-by: Christoph Hellwig <hch@xxxxxx>
Suggested-by: Philipp Tomsich <philipp.tomsich@xxxxxxxx>
Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
---
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