linux-kernel - [PATCH v2] riscv: include generic support for MSI irqdomains

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Message-ID: <alpine.DEB.2.21.9999.1907181525540.20168@viisi.sifive.com>
Date:   Thu, 18 Jul 2019 15:27:24 -0700 (PDT)
From:   Paul Walmsley <paul.walmsley@...ive.com>
To:     linux-riscv@...ts.infradead.org
cc:     linux-kernel@...r.kernel.org
Subject: [PATCH v2] riscv: include generic support for MSI irqdomains

From: Wesley Terpstra <wesley@...ive.com>

Some RISC-V systems include PCIe host controllers that support PCIe
message-signaled interrupts.  For this to work on Linux, we need to
enable PCI_MSI_IRQ_DOMAIN and define struct msi_alloc_info.  Support
for the latter is enabled by including the architecture-generic msi.h
include.

Signed-off-by: Wesley Terpstra <wesley@...ive.com>
[paul.walmsley@...ive.com: split initial patch into one arch/riscv
 patch and one drivers/pci patch]
Signed-off-by: Paul Walmsley <paul.walmsley@...ive.com>
---
Planned for v5.3-rc.

 arch/riscv/include/asm/Kbuild | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild
index 3d019e062c6f..b0a9fa34be5a 100644
--- a/arch/riscv/include/asm/Kbuild
+++ b/arch/riscv/include/asm/Kbuild
@@ -20,6 +20,7 @@ generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mm-arch-hooks.h
+generic-y += msi.h
 generic-y += percpu.h
 generic-y += preempt.h
 generic-y += sections.h
-- 
2.22.0