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From: Guo Ren <guoren@kernel.org>
To: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: palmer@dabbelt.com, pjw@kernel.org, aou@eecs.berkeley.edu,
	alex@ghiti.fr, tglx@kernel.org, daniel.lezcano@kernel.org,
	anup@brainfault.org, hui.wang@canonical.com,
	samuel.holland@sifive.com,
	"GUO Ren (XuanTie)" <guoren@kernel.org>
Subject: [PATCH 5/5] irqchip/imsic: Use IPI_MAX instead of IMSIC_NR_IPI
Date: Sun, 16 Aug 2026 07:00:49 +0000	[thread overview]
Message-ID: <20260816070049.2097442-6-guoren@kernel.org> (raw)
In-Reply-To: <20260816070049.2097442-1-guoren@kernel.org>

From: "GUO Ren (XuanTie)" <guoren@kernel.org>

IMSIC was defining its own IMSIC_NR_IPI (= 8) which happened to match
the architecture's IPI_MAX. Now that IPI_MAX is exported from riscv
asm/smp.h, use the architecture constant and drop the private define.

This keeps the number of multiplexed IPIs in sync with the rest of the
RISC-V IPI infrastructure.

Signed-off-by: GUO Ren (XuanTie) <guoren@kernel.org>
---
 drivers/irqchip/irq-riscv-imsic-early.c | 4 ++--
 drivers/irqchip/irq-riscv-imsic-state.h | 1 -
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-riscv-imsic-early.c b/drivers/irqchip/irq-riscv-imsic-early.c
index 12efd241ce88..823f5f2ecb3d 100644
--- a/drivers/irqchip/irq-riscv-imsic-early.c
+++ b/drivers/irqchip/irq-riscv-imsic-early.c
@@ -67,12 +67,12 @@ static int __init imsic_ipi_domain_init(void)
 		return 0;
 
 	/* Create IMSIC IPI multiplexing */
-	virq = ipi_mux_create(IMSIC_NR_IPI, imsic_ipi_send);
+	virq = ipi_mux_create(IPI_MAX, imsic_ipi_send);
 	if (virq <= 0)
 		return virq < 0 ? virq : -ENOMEM;
 
 	/* Set vIRQ range */
-	riscv_ipi_set_virq_range(virq, IMSIC_NR_IPI);
+	riscv_ipi_set_virq_range(virq, IPI_MAX);
 
 	/* Announce that IMSIC is providing IPIs */
 	pr_info("%pfwP: providing IPIs using interrupt %d\n", imsic->fwnode, IMSIC_IPI_ID);
diff --git a/drivers/irqchip/irq-riscv-imsic-state.h b/drivers/irqchip/irq-riscv-imsic-state.h
index c42ee180b305..878cc192ccec 100644
--- a/drivers/irqchip/irq-riscv-imsic-state.h
+++ b/drivers/irqchip/irq-riscv-imsic-state.h
@@ -13,7 +13,6 @@
 #include <linux/timer.h>
 
 #define IMSIC_IPI_ID				1
-#define IMSIC_NR_IPI				8
 
 struct imsic_vector {
 	/* Fixed details of the vector */
-- 
2.43.0


      parent reply	other threads:[~2026-08-16  7:01 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-16  7:00 [PATCH 0/5] riscv: Make IPI_MAX visible and use it consistently Guo Ren
2026-08-16  7:00 ` [PATCH 1/5] riscv: smp: Move enum ipi_message_type to asm/smp.h Guo Ren
2026-08-16  7:00 ` [PATCH 2/5] riscv: sbi: Use IPI_MAX for SBI IPI muxing Guo Ren
2026-08-16  7:00 ` [PATCH 3/5] clocksource: clint: Use IPI_MAX for " Guo Ren
2026-08-16  7:00 ` [PATCH 4/5] irqchip/aclint-sswi: " Guo Ren
2026-08-16  7:00 ` Guo Ren [this message]

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