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From: Sunil V L <sunilvl@ventanamicro.com>
To: linux-arm-kernel@lists.infradead.org,
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	Andrew Jones <ajones@ventanamicro.com>,
	Atish Kumar Patra <atishp@rivosinc.com>,
	Andrei Warkentin <andrei.warkentin@intel.com>,
	Marc Zyngier <maz@kernel.org>,
	=?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= <bjorn@kernel.org>,
	Sunil V L <sunilvl@ventanamicro.com>
Subject: [RFC PATCH v4 07/20] RISC-V: Kconfig: Select deferred GSI probe for ACPI systems
Date: Mon, 15 Apr 2024 22:31:00 +0530
Message-Id: <20240415170113.662318-8-sunilvl@ventanamicro.com>
In-Reply-To: <20240415170113.662318-1-sunilvl@ventanamicro.com>
References: <20240415170113.662318-1-sunilvl@ventanamicro.com>
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On RISC-V platforms, apart from root interrupt controllers (which
provide local interrupts and IPI), other interrupt controllers in the
hierarchy are probed late. Enable this CONFIG option for RISC-V ACPI
based platforms.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
---
 arch/riscv/Kconfig   | 1 +
 drivers/acpi/Kconfig | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 69cc0509a19a..d8cdb3535e44 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -15,6 +15,7 @@ config RISCV
 	select ACPI_GENERIC_GSI if ACPI
 	select ACPI_MCFG if (ACPI && PCI)
 	select ACPI_REDUCED_HARDWARE_ONLY if ACPI
+	select ARCH_ACPI_DEFERRED_GSI 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
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index e3a7c2aedd5f..ebec1707f662 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -587,6 +587,9 @@ config ACPI_PRMT
 	  substantially increase computational overhead related to the
 	  initialization of some server systems.
 
+config ARCH_ACPI_DEFERRED_GSI
+	bool
+
 endif	# ACPI
 
 config X86_PM_TIMER
-- 
2.40.1