riscv: Improve description for RISCV_ISA_SVPBMT Kconfig
From: Heiko Stuebner <heiko@...> Date: Wed, 18 May 2022 13:34:00 +0200
Commit-Message
This improves the symbol's description to make it easier for people to understand what it is about. Suggested-by: Christoph Hellwig <hch@...> Suggested-by: Philipp Tomsich <philipp.tomsich@...> Signed-off-by: Heiko Stuebner <heiko@...>
Patch-Comment
arch/riscv/Kconfig | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
Statistics
- 7 lines added
- 2 lines removed
Changes
------------------------------ arch/riscv/Kconfig ------------------------------
index 65285b980134..a4b299ad4473 100644
@@ -356,8 +356,13 @@ config RISCV_ISA_SVPBMT
select RISCV_ALTERNATIVE
default y
help
+ 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.