linux-kernel - [PATCH v15 01/10] irqchip/riscv-intc: Fix low-level interrupt handler setup for AIA

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Date: Mon, 26 Feb 2024 09:37:37 +0530
From: Anup Patel <apatel@...tanamicro.com>
To: Palmer Dabbelt <palmer@...belt.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Frank Rowand <frowand.list@...il.com>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Marc Zyngier <maz@...nel.org>,
	Björn Töpel <bjorn@...nel.org>,
	Atish Patra <atishp@...shpatra.org>,
	Andrew Jones <ajones@...tanamicro.com>,
	Sunil V L <sunilvl@...tanamicro.com>,
	Saravana Kannan <saravanak@...gle.com>,
	Anup Patel <anup@...infault.org>,
	linux-riscv@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	Anup Patel <apatel@...tanamicro.com>
Subject: [PATCH v15 01/10] irqchip/riscv-intc: Fix low-level interrupt handler setup for AIA

Use riscv_intc_aia_irq() as the low-level interrupt handler and print
"using AIA" in the INTC boot banner when AIA is available.

Fixes: c1be2ae5987a ("irqchip/riscv-intc: Add support for RISC-V AIA")
Signed-off-by: Anup Patel <apatel@...tanamicro.com>
---
 drivers/irqchip/irq-riscv-intc.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-riscv-intc.c b/drivers/irqchip/irq-riscv-intc.c
index cccb65339982..f87aeab460eb 100644
--- a/drivers/irqchip/irq-riscv-intc.c
+++ b/drivers/irqchip/irq-riscv-intc.c
@@ -183,7 +183,10 @@ static int __init riscv_intc_init_common(struct fwnode_handle *fn, struct irq_ch
 		return -ENXIO;
 	}
 
-	rc = set_handle_irq(&riscv_intc_irq);
+	if (riscv_isa_extension_available(NULL, SxAIA))
+		rc = set_handle_irq(&riscv_intc_aia_irq);
+	else
+		rc = set_handle_irq(&riscv_intc_irq);
 	if (rc) {
 		pr_err("failed to set irq handler\n");
 		return rc;
@@ -191,8 +194,9 @@ static int __init riscv_intc_init_common(struct fwnode_handle *fn, struct irq_ch
 
 	riscv_set_intc_hwnode_fn(riscv_intc_hwnode);
 
-	pr_info("%d local interrupts mapped\n",
-		riscv_isa_extension_available(NULL, SxAIA) ? 64 : riscv_intc_nr_irqs);
+	pr_info("%d local interrupts mapped%s\n",
+		riscv_isa_extension_available(NULL, SxAIA) ? 64 : riscv_intc_nr_irqs,
+		riscv_isa_extension_available(NULL, SxAIA) ? " using AIA" : "");
 	if (riscv_intc_custom_nr_irqs)
 		pr_info("%d custom local interrupts mapped\n", riscv_intc_custom_nr_irqs);
 
-- 
2.34.1