linux-kernel - [tip: irq/drivers] irqchip/sg2042-msi: Set MSI_FLAG_MULTI_PCI

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Message-ID: <175597742182.1420.13540606027539180703.tip-bot2@tip-bot2>
Date: Sat, 23 Aug 2025 19:30:21 -0000
From: "tip-bot2 for Inochi Amaoto" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Inochi Amaoto <inochiama@...il.com>, Thomas Gleixner <tglx@...utronix.de>,
 Chen Wang <unicorn_wang@...look.com>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: irq/drivers] irqchip/sg2042-msi: Set MSI_FLAG_MULTI_PCI_MSI
 flags for SG2044

The following commit has been merged into the irq/drivers branch of tip:

Commit-ID:     7ee4a5a2ec3748facfb4ca96e4cce6cabbdecab2
Gitweb:        https://git.kernel.org/tip/7ee4a5a2ec3748facfb4ca96e4cce6cabbdecab2
Author:        Inochi Amaoto <inochiama@...il.com>
AuthorDate:    Thu, 14 Aug 2025 07:28:34 +08:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Sat, 23 Aug 2025 21:21:13 +02:00

irqchip/sg2042-msi: Set MSI_FLAG_MULTI_PCI_MSI flags for SG2044

The MSI controller on SG2044 has the ability to allocate multiple PCI MSI
interrupts. So the PCIe controller driver can use this feature if the
hardware supports multiple PCI MSI interrupts.

Add the MSI_FLAG_MULTI_PCI_MSI flag to the supported_flags of SG2044
msi_parent_ops to enable this functionality.

Signed-off-by: Inochi Amaoto <inochiama@...il.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Chen Wang <unicorn_wang@...look.com> # Pioneerbox
Reviewed-by: Chen Wang <unicorn_wang@...look.com>
Link: https://lore.kernel.org/all/20250813232835.43458-5-inochiama@gmail.com

---
 drivers/irqchip/irq-sg2042-msi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/irqchip/irq-sg2042-msi.c b/drivers/irqchip/irq-sg2042-msi.c
index 2fd4d94..3b13dbb 100644
--- a/drivers/irqchip/irq-sg2042-msi.c
+++ b/drivers/irqchip/irq-sg2042-msi.c
@@ -212,6 +212,7 @@ static const struct msi_parent_ops sg2042_msi_parent_ops = {
 				   MSI_FLAG_PCI_MSI_STARTUP_PARENT)
 
 #define SG2044_MSI_FLAGS_SUPPORTED (MSI_GENERIC_FLAGS_MASK |		\
+				    MSI_FLAG_MULTI_PCI_MSI |		\
 				    MSI_FLAG_PCI_MSIX)
 
 static const struct msi_parent_ops sg2044_msi_parent_ops = {