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Date: Mon, 06 May 2024 18:40:45 -0700 From: Charlie Jenkins <charlie@...osinc.com> To: Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, Conor Dooley <conor.dooley@...rochip.com>, Song Liu <song@...nel.org>, Xi Wang <xi.wang@...il.com>, Björn Töpel <bjorn@...osinc.com>, Clément Léger <cleger@...osinc.com> Cc: linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, Charlie Jenkins <charlie@...osinc.com> Subject: [PATCH 4/8] riscv: Add PLATFORM_MAY_SUPPORT_RISCV_ISA_SVPBMT Kconfig option Svpbmt would not benefit from having PLATFORM_SUPPORTS_RISCV_ISA_SVPBMT so just rename RISCV_ISA_SVPBMT to PLATFORM_MAY_SUPPORT_RISCV_ISA_SVPBMT and move the definition to Kconfig.isa. Signed-off-by: Charlie Jenkins <charlie@...osinc.com> --- arch/riscv/Kconfig | 17 ----------------- arch/riscv/Kconfig.isa | 17 +++++++++++++++++ 2 files changed, 17 insertions(+), 17 deletions(-) diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 9c3a4347953b..22303a3ab59e 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -484,23 +484,6 @@ config RISCV_ALTERNATIVE_EARLY help Allows early patching of the kernel for special errata -config RISCV_ISA_SVPBMT - bool "Svpbmt extension support for supervisor mode page-based memory types" - depends on 64BIT && MMU - depends on RISCV_ALTERNATIVE - default y - help - Add support for the Svpbmt ISA-extension (Supervisor-mode: - page-based memory types) in the kernel when it is detected at boot. - - 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 64-bit cpus. - - If you don't know what to do here, say Y. - config TOOLCHAIN_HAS_ZBB bool default y diff --git a/arch/riscv/Kconfig.isa b/arch/riscv/Kconfig.isa index 37585bcd763e..50e217dc5719 100644 --- a/arch/riscv/Kconfig.isa +++ b/arch/riscv/Kconfig.isa @@ -168,3 +168,20 @@ config PLATFORM_SUPPORTS_RISCV_ISA_SVNAPOT not support Svnapot. endchoice + +config RISCV_ISA_SVPBMT + bool "Svpbmt extension support for supervisor mode page-based memory types" + depends on 64BIT && MMU + depends on RISCV_ALTERNATIVE + default y + help + Add support for the Svpbmt ISA-extension (Supervisor-mode: + page-based memory types) in the kernel when it is detected at boot. + + 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 64-bit cpus. + + If you don't know what to do here, say Y. -- 2.44.0
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