linux-kernel - [PATCH v2 03/11] irqchip/riscv-imsic: Set irq_set

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241214172549.8842-4-apatel@ventanamicro.com>
Date: Sat, 14 Dec 2024 22:55:41 +0530
From: Anup Patel <apatel@...tanamicro.com>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: Marc Zyngier <maz@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...tlin.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Atish Patra <atishp@...shpatra.org>,
	Andrew Jones <ajones@...tanamicro.com>,
	Sunil V L <sunilvl@...tanamicro.com>,
	Anup Patel <anup@...infault.org>,
	linux-riscv@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev,
	Anup Patel <apatel@...tanamicro.com>
Subject: [PATCH v2 03/11] irqchip/riscv-imsic: Set irq_set_affinity for IMSIC base

From: Andrew Jones <ajones@...tanamicro.com>

Instead of using imsic_irq_set_affinity() for leaf MSI domains,
use imsic_irq_set_affinity() for the non-leaf IMSIC base domain
and use irq_chip_set_affinity_parent() for leaf MSI domains.

Signed-off-by: Andrew Jones <ajones@...tanamicro.com>
Signed-off-by: Anup Patel <apatel@...tanamicro.com>
---
 drivers/irqchip/irq-riscv-imsic-platform.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/irqchip/irq-riscv-imsic-platform.c b/drivers/irqchip/irq-riscv-imsic-platform.c
index b44eb0b3990b..dc6f63f657e4 100644
--- a/drivers/irqchip/irq-riscv-imsic-platform.c
+++ b/drivers/irqchip/irq-riscv-imsic-platform.c
@@ -96,10 +96,9 @@ static int imsic_irq_set_affinity(struct irq_data *d, const struct cpumask *mask
 				  bool force)
 {
 	struct imsic_vector *old_vec, *new_vec;
-	struct irq_data *pd = d->parent_data;
 	struct imsic_vector tmp_vec;
 
-	old_vec = irq_data_get_irq_chip_data(pd);
+	old_vec = irq_data_get_irq_chip_data(d);
 	if (WARN_ON(!old_vec))
 		return -ENOENT;
 
@@ -139,17 +138,17 @@ static int imsic_irq_set_affinity(struct irq_data *d, const struct cpumask *mask
 		tmp_vec.local_id = new_vec->local_id;
 
 		/* Point device to the temporary vector */
-		imsic_msi_update_msg(d, &tmp_vec);
+		imsic_msi_update_msg(irq_get_irq_data(d->irq), &tmp_vec);
 	}
 
 	/* Point device to the new vector */
-	imsic_msi_update_msg(d, new_vec);
+	imsic_msi_update_msg(irq_get_irq_data(d->irq), new_vec);
 
 	/* Update irq descriptors with the new vector */
-	pd->chip_data = new_vec;
+	d->chip_data = new_vec;
 
-	/* Update effective affinity of parent irq data */
-	irq_data_update_effective_affinity(pd, cpumask_of(new_vec->cpu));
+	/* Update effective affinity */
+	irq_data_update_effective_affinity(d, cpumask_of(new_vec->cpu));
 
 	/* Move state of the old vector to the new vector */
 	imsic_vector_move(old_vec, new_vec);
@@ -162,6 +161,9 @@ static struct irq_chip imsic_irq_base_chip = {
 	.name			= "IMSIC",
 	.irq_mask		= imsic_irq_mask,
 	.irq_unmask		= imsic_irq_unmask,
+#ifdef CONFIG_SMP
+	.irq_set_affinity	= imsic_irq_set_affinity,
+#endif
 	.irq_retrigger		= imsic_irq_retrigger,
 	.irq_compose_msi_msg	= imsic_irq_compose_msg,
 	.flags			= IRQCHIP_SKIP_SET_WAKE |
@@ -272,7 +274,7 @@ static bool imsic_init_dev_msi_info(struct device *dev,
 		if (WARN_ON_ONCE(domain != real_parent))
 			return false;
 #ifdef CONFIG_SMP
-		info->chip->irq_set_affinity = imsic_irq_set_affinity;
+		info->chip->irq_set_affinity = irq_chip_set_affinity_parent;
 #endif
 		break;
 	default:
-- 
2.43.0