From nobody Tue Feb 10 15:45:37 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C599E3806CE; Tue, 13 Jan 2026 09:00:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768294837; cv=none; b=BLhF+ZZ+YZwm0WlJzMYJKg5RoePGLL3I5DtlvMnbPx7Os2/32J0RGtB3J62d9Vi7j8u38CDiTHOU7P1GCc6hqyIX8IbN1J/NZSENLIFbiRqQg11LIxqyzHIKRrIUok99U5r0gzPYSEi2b0c2UuVfnlAAz3YBHOlCZfdi1cPN8/Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768294837; c=relaxed/simple; bh=q0CZF+CNg4Eo07tB77hWIOdhlAl3OZt8QEIqL+xObvQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=d+1GhhNaWL5C6WAY2EWgWX6ZLVXExJ/v7QkMEjrka0AcJMpZVlYMMhOiOnVQHlH6ESVl4U7/rDeXGqR61fWT3JOtvAZWu/lC4mG7NbiSnTqXYgHyz3u0tNyFu9OQj6E+PdHBNeeeROHfVnjzCehYTexMEy1i5OQLtLQnV0xu/WQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id D825BC19424; Tue, 13 Jan 2026 09:00:35 +0000 (UTC) From: Huacai Chen To: Thomas Gleixner Cc: loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, Xuefeng Li , Huacai Chen , Jiaxun Yang , Huacai Chen Subject: [PATCH V3 1/7] irqchip/loongarch-avec: Adjust irqchip driver for 32BIT/64BIT Date: Tue, 13 Jan 2026 16:59:34 +0800 Message-ID: <20260113085940.3344837-2-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260113085940.3344837-1-chenhuacai@loongson.cn> References: <20260113085940.3344837-1-chenhuacai@loongson.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" csr_read64() is only available on 64BIT LoongArch platform, so use recently added adaptive csr_read() instead, so as to make the driver work on both 32BIT and 64BIT platform. BTW, make avecintc_enable() be a no-op since it is only needed by 64BIT platform. Co-developed-by: Jiaxun Yang Signed-off-by: Jiaxun Yang Signed-off-by: Huacai Chen --- drivers/irqchip/irq-loongarch-avec.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/irqchip/irq-loongarch-avec.c b/drivers/irqchip/irq-loo= ngarch-avec.c index ba556c008cf3..fb8efde95393 100644 --- a/drivers/irqchip/irq-loongarch-avec.c +++ b/drivers/irqchip/irq-loongarch-avec.c @@ -58,11 +58,13 @@ struct avecintc_data { =20 static inline void avecintc_enable(void) { +#ifdef CONFIG_MACH_LOONGSON64 u64 value; =20 value =3D iocsr_read64(LOONGARCH_IOCSR_MISC_FUNC); value |=3D IOCSR_MISC_FUNC_AVEC_EN; iocsr_write64(value, LOONGARCH_IOCSR_MISC_FUNC); +#endif } =20 static inline void avecintc_ack_irq(struct irq_data *d) @@ -167,7 +169,7 @@ void complete_irq_moving(void) struct pending_list *plist =3D this_cpu_ptr(&pending_list); struct avecintc_data *adata, *tdata; int cpu, vector, bias; - uint64_t isr; + unsigned long isr; =20 guard(raw_spinlock)(&loongarch_avec.lock); =20 @@ -177,16 +179,16 @@ void complete_irq_moving(void) bias =3D vector / VECTORS_PER_REG; switch (bias) { case 0: - isr =3D csr_read64(LOONGARCH_CSR_ISR0); + isr =3D csr_read(LOONGARCH_CSR_ISR0); break; case 1: - isr =3D csr_read64(LOONGARCH_CSR_ISR1); + isr =3D csr_read(LOONGARCH_CSR_ISR1); break; case 2: - isr =3D csr_read64(LOONGARCH_CSR_ISR2); + isr =3D csr_read(LOONGARCH_CSR_ISR2); break; case 3: - isr =3D csr_read64(LOONGARCH_CSR_ISR3); + isr =3D csr_read(LOONGARCH_CSR_ISR3); break; } =20 @@ -234,7 +236,7 @@ static void avecintc_irq_dispatch(struct irq_desc *desc) chained_irq_enter(chip, desc); =20 while (true) { - unsigned long vector =3D csr_read64(LOONGARCH_CSR_IRR); + unsigned long vector =3D csr_read(LOONGARCH_CSR_IRR); if (vector & IRR_INVALID_MASK) break; =20 --=20 2.47.3