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 v2 2/5] riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol
Date: Thu, 26 May 2022 22:56:43 +0200 [thread overview]
Message-ID: <20220526205646.258337-3-heiko@sntech.de> (raw)
In-Reply-To: <20220526205646.258337-1-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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next prev parent reply other threads:[~2022-05-26 21:08 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-26 20:56 [PATCH v2 0/5] riscv: some svpbmt fixes Heiko Stuebner
2022-05-26 20:56 ` [PATCH v2 1/5] riscv: drop cpufeature_apply_feature tracking variable Heiko Stuebner
2022-05-27 2:48 ` Guo Ren
2022-05-26 20:56 ` Heiko Stuebner [this message]
2022-05-27 2:51 ` [PATCH v2 2/5] riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol Guo Ren
2022-05-26 20:56 ` [PATCH v2 3/5] riscv: make patch-function pointer more generic in cpu_manufacturer_info struct Heiko Stuebner
2022-05-26 20:56 ` [PATCH v2 4/5] riscv: fix dependency for t-head errata Heiko Stuebner
2022-05-27 2:50 ` Guo Ren
2022-05-26 20:56 ` [PATCH v2 5/5] riscv: remove usage of function-pointers from cpufeatures and " Heiko Stuebner
2022-05-29 1:27 ` Samuel Holland
2022-05-29 17:49 ` Heiko Stübner
2022-06-16 23:03 ` [PATCH v2 0/5] riscv: some svpbmt fixes Palmer Dabbelt
2022-06-17 7:13 ` Heiko Stübner
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