linux-kernel - [PATCH 2/2] RISC-V: Select ACPI PPTT drivers

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Date: Sun,  7 Apr 2024 20:38:29 +0800
From: Yunhui Cui <cuiyunhui@...edance.com>
To: rafael@...nel.org,
	lenb@...nel.org,
	linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	paul.walmsley@...ive.com,
	palmer@...belt.com,
	aou@...s.berkeley.edu,
	linux-riscv@...ts.infradead.org
Cc: Yunhui Cui <cuiyunhui@...edance.com>
Subject: [PATCH 2/2] RISC-V: Select ACPI PPTT drivers

RSIC-V currently does not have a set of registers similar to ARM64
that describe cache-related attributes. In order to make RISC-V
cacheinfo normally supported by ACPI, through the optimization of
pptt.c, RISC-V can build cacheinfo through the ACPI PPTT table.

Signed-off-by: Yunhui Cui <cuiyunhui@...edance.com>
---
 arch/riscv/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 8f10a2fb5f86..cc516c12cb92 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -14,6 +14,7 @@ config RISCV
 	def_bool y
 	select ACPI_GENERIC_GSI if ACPI
 	select ACPI_REDUCED_HARDWARE_ONLY if ACPI
+	select ACPI_PPTT if ACPI
 	select ARCH_DMA_DEFAULT_COHERENT
 	select ARCH_ENABLE_HUGEPAGE_MIGRATION if HUGETLB_PAGE && MIGRATION
 	select ARCH_ENABLE_SPLIT_PMD_PTLOCK if PGTABLE_LEVELS > 2
-- 
2.20.1