From nobody Sun Dec 14 19:24:22 2025 Received: from cstnet.cn (smtp21.cstnet.cn [159.226.251.21]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E2C3628682; Wed, 21 May 2025 14:24:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747837471; cv=none; b=T60WB2/ruCKOj6Twtsrq7twDsV4x3yee5+u+ZWNfvSyK2CTPovZXy6OEVctVwKLJaTmHzhm7cqCqyTo/A5fI5cMnjavE96k6dtbHvcdSrWCS2U+ENs91LehcEMsKsKYLz42hPuMxJFrzXHjevf2YMpI5QFkM+vqz/8MOA4THbjw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747837471; c=relaxed/simple; bh=Ourow4OK6/2Cln7586tL43/CJb5AAk27N8xfphvkees=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dDGkD6m+0D1gY+PYAdjIuV4xhcanH+2/PCri8hNXNqBI0IH40AbLaVPbcxh02gU3YVtNATEQWBy5VKJB3z7EVcztkfAhBOKFktg3L77sxx/B0+9o8+hejypGlkNjb4i1kxYFMhX5Xy4EHmXF8F3qxnR60/EkB0jLkawfOOqxwvg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from localhost.localdomain (unknown [124.16.141.245]) by APP-01 (Coremail) with SMTP id qwCowABHtcQT4i1oHRX6AQ--.16951S2; Wed, 21 May 2025 22:24:20 +0800 (CST) From: Wentao Liang To: andersson@kernel.org, mathieu.poirier@linaro.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com Cc: linux-remoteproc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, Wentao Liang , stable@vger.kernel.org Subject: [PATCH] remoteproc: mediatek: Add SCP watchdog handler in IRQ processing Date: Wed, 21 May 2025 22:24:03 +0800 Message-ID: <20250521142404.1077-1-vulab@iscas.ac.cn> X-Mailer: git-send-email 2.42.0.windows.2 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 X-CM-TRANSID: qwCowABHtcQT4i1oHRX6AQ--.16951S2 X-Coremail-Antispam: 1UD129KBjvdXoW7GFWkXr4xCr4DGFWrXry5Arb_yoWkZrX_ua s0gFZrWF1vga1Yy34IyrsavFZa9ry8Wry8KFySqas8t39xXa47try0vF4kuw1DXF15uFy5 Zr4v9F4fuF4xujkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbTkFF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_JFI_Gr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr0_ Cr1l84ACjcxK6I8E87Iv67AKxVWxJr0_GcWl84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s 0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xII jxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVW8JVWxJwAm72CE4IkC6x0Yz7v_Jr0_Gr 1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxa n2IY04v7MxkF7I0En4kS14v26r1q6r43MxkIecxEwVAFwVW5XwCF04k20xvY0x0EwIxGrw CFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE 14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2 IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr0_Gr1lIxAIcVCF04k26cxK x2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4A2jsIEc7CjxVAFwI 0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUSdgAUUUUU= X-CM-SenderInfo: pyxotu46lvutnvoduhdfq/1tbiDAUJA2gtsvlq+gACsf Content-Type: text/plain; charset="utf-8" In mt8195_scp_c1_irq_handler(), only the IPC interrupt bit (MT8192_SCP_IPC_INT_BIT) was checked., but does not handle when this bit is not set. This could lead to unhandled watchdog events. This could lead to unhandled watchdog events. A proper implementation can be found in mt8183_scp_irq_handler(). Add a new branch to handle SCP watchdog events when the IPC interrupt bit is not set. Fixes: 6a1c9aaf04eb ("remoteproc: mediatek: Add MT8195 SCP core 1 operation= s") Cc: stable@vger.kernel.org # v6.7 Signed-off-by: Wentao Liang --- drivers/remoteproc/mtk_scp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c index 0f4a7065d0bd..316e8c98a503 100644 --- a/drivers/remoteproc/mtk_scp.c +++ b/drivers/remoteproc/mtk_scp.c @@ -273,6 +273,8 @@ static void mt8195_scp_c1_irq_handler(struct mtk_scp *s= cp) =20 if (scp_to_host & MT8192_SCP_IPC_INT_BIT) scp_ipi_handler(scp); + else + scp_wdt_handler(scp, scp_to_host); =20 writel(scp_to_host, scp->cluster->reg_base + MT8195_SSHUB2APMCU_IPC_CLR); } --=20 2.42.0.windows.2