From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DB0C1606A31F for ; Sun, 15 Nov 2026 13:16:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=DeqoGl0P; dkim=pass (2048-bit key) header.d=sntech.de header.i=@sntech.de header.a=rsa-sha256 header.s=gloria202408 header.b=lAbr702A DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=P/iZWwmcm3GJ6CC8MhWTY8Sc2xzYlGTS5W4HDt6HJ9I=; b=DeqoGl0PCAm3593a8rDt+Llw8V QmRNyBxb/3ucQcHMXb7Y/9dexfDxkjlt+i4hWicBTHJDn429+Z/tLr/4S7ZhTgT6ZjR0zo0MQuEaF 2fM2sRUKgNUsWkCqYT1ABL8RmRcZzSocyY2yLLXoikNCtiY5jGN0BaJoaxD4tNzckX2HkdzYHCEH6 vhvE9b8fG28DQ52NBiSXnh9TWt07qjYLw8dOhGQj0n6Fje0oPu7nd1iantHvt/YMb3LpUeu73DDZJ qfZNY/GQtHT1JE0RTi9htpFM+BNwoA7tWxfWSNTWqXVrWw6P4BHiZ7wqxQYJVKK/ApZSuCXVQUpgy kGErmDsA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xSa6D-0000000HXuo-1ZsD; Sun, 15 Nov 2026 13:16:49 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xSa6A-0000000HXu4-1G7k; Sun, 15 Nov 2026 13:16:47 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Type:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Reply-To; bh=P/iZWwmcm3GJ6CC8MhWTY8Sc2xzYlGTS5W4HDt6HJ9I=; b=lAbr702A7r84NtQz1gujPywg4k yBT3Z0xSGQanL5I3/5xJUV+0Kw/mxXBjjQVHsF+Y65CpJPrGrjj1WvwqFPn/FKwmPvq28ATkzAryg 7Il7K3vQmQ1CdSmPyCIxYdECs6NT761RlmgOQBsDViniBQ5rzBTlw58PiveEVMo7haTgv61jeyIWI wJDMN5VktCHa8leoByjVNmFuI9VrXrjzsNIRgbElQ8vk6JixqXyqygiUu7WCRi7OvhFpEVj+F3lRq xMrKretk6AlxK4EUzCTFqOaMsKlh0xRYsvyxrfiP4VxUeNPBrT33PkZRK3gl36hQ/BLdHMD07Asxf f+pybMTA==; From: Heiko =?UTF-8?B?U3TDvGJuZXI=?= To: tomeu@tomeuvizoso.net, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, p.zabel@pengutronix.de, ogabbay@kernel.org, zhangqing@rock-chips.com, Jiaxing Hu Cc: royalnet026@gmail.com, ulf.hansson@oss.qualcomm.com, abel.vesa@oss.qualcomm.com, sebastian.reichel@collabora.com, sidong.yang@furiosa.ai, u.kleine-koenig@baylibre.com, chaoyi.chen@rock-chips.com, shawn.lin@rock-chips.com, finley.xiao@rock-chips.com, diederik@cknow-tech.com, alchark@flipper.net, leonard@lausen.nl, vlwwwwww@gmail.com, jeff.hugo@oss.qualcomm.com, rfoss@kernel.org, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v17 03/12] accel/rocket: wait for a running IRQ handler before resetting a core Date: Sun, 15 Nov 2026 14:16:01 +0100 Message-ID: In-Reply-To: <18667b2afdcaae217fa1038f5348ab23ed756bdc.1794615323.git.gahing@gahingwoo.com> References: <18667b2afdcaae217fa1038f5348ab23ed756bdc.1794615323.git.gahing@gahingwoo.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261115_051646_386386_9970DA04 X-CRM114-Status: UNSURE ( 9.70 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-10.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Am Samstag, 14. November 2026, 04:05:20 Mitteleurop=C3=A4ische Normalzeit s= chrieb Jiaxing Hu: > drm_sched_stop() does not wait for a threaded IRQ handler that is already > running, so call synchronize_irq() after it to make sure the handler has > finished before the reset. >=20 > Before synchronize_irq(), mask the interrupt and clear the raw status, so > that the NPU core cannot report a completion afterwards. >=20 > Do this under job_lock, because the submit path sets the interrupt mask > under the same lock. >=20 > Only touch these registers when the device is powered: check with > pm_runtime_get_if_active(), so that a register access with the power > domain off cannot raise an SError. >=20 > Suggested-by: Igor Paunovic > Signed-off-by: Jiaxing Hu > Tested-by: Igor Paunovic # RK3588, three cores, i= nduced reset, JOB_TIMEOUT_MS=3D2 Reviewed-by: Heiko Stuebner