diff options
| author |   Heiko Stuebner <heiko@sntech.de> | 2022-05-26 22:56:43 +0200 |
|---|---|---|
| committer |   Palmer Dabbelt <palmer@rivosinc.com> | 2022-06-16 15:47:39 -0700 |
| commit | 924cbb8cbe3460ea192e6243017ceb0ceb255b1b (patch) | |
| tree | a0c1ae15f500d4462020e245b15933b19b945f9b /arch/riscv/Kconfig | |
| parent | riscv: drop cpufeature_apply_feature tracking variable (diff) | |
| download | linux-dev-924cbb8cbe3460ea192e6243017ceb0ceb255b1b.tar.xz linux-dev-924cbb8cbe3460ea192e6243017ceb0ceb255b1b.zip | |
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@lst.de>
Suggested-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Guo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/r/20220526205646.258337-3-heiko@sntech.de
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/riscv/Kconfig | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index c22f58155948..32ffef9f6e5b 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -364,8 +364,13 @@ 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. |