From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793025615; b=FerRFpf19lNomiweuIWNciF+evgNo2GaKgC25egvyGHj1vBXOP/DPY5NsExa3JnrD1K1 0bylJKQMRdbuiK4Pi6RWKK6PlQpSz5MqgB6r/9fo8KELCp1xeOApIgJywG8rGPRIcZG06 FhE9CCBDcpZgBjPOMMVZaN8iYTFTGY4qOf2eLet0nE0EfLJhia5qBsAliFFNrxYAzPM5N NqF9ATUjujAZxa2jV34PpUgGNldz5taW5T3XKHQ7rO7DoHkTqfr7ISC74pukBNVM3vCq4 3lbG2ha9JeeqikthBy1ZBIoC8rmexxAJnTYit+hIAtbKQjVYUmFVsYPlsGJdsUuPYpQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793025615; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=IDPiSEghbBnGOtdqC+MYU1ta6GghQviPXHf3wgi9Hp4=; b=kN78dCus08pMH9yiELSUkQ955kYbvu0TcwhV4dUlYKp0qTwJZH8BCamJLDLSro77AUO/ VEuBcAnWEuTRASfvkpx6didIw5dbLuaMTdEvM7PVh5xVlJR+RNS+ESQVHimiNcVKsdn8b Y6oG3ht2vnEhaSoQP4VEXUmy18u4Bbo34DSfyjt43P+anT62zit2QKYee/xNXeDrBfm4P zr5wQXmTek9C/ilsZUZuoBNHF+MUEYJzd1+lYYtT9ClX0XzJKpKrQsOjO1IIZzi/HXCUv 78Hs+gRdG4xmnerZfjg1bkESQvsiyAeMaJSNXnuzHlDTy7bDQv4wPE6ANZoxwQYk6lQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b="PZ/b8K1H"; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 405D1606A325 for ; Mon, 26 Oct 2026 14:40:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=PZ/b8K1H Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8FE6B1F031E0; Mon, 26 Oct 2026 14:40:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793025614; bh=IDPiSEghbBnGOtdqC+MYU1ta6GghQviPXHf3wgi9Hp4=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=PZ/b8K1Ha1FlMInrvPekKlH2y6VCL7Ey+4qxKTKfPWs3ObJ1PTLhBDey9w4ejE+Sn Cz41AheEkYIJ2b35lAk0KWZi1pJtxFqdeIsjvUoUPjAgxaQdOqe3xfBZkgivz0lez/ cDBlz9VKNYn7QC8pa01NJBaH1hf9gViOJezm67jaC1CQXe1iLRRSeBXgb4cMN0c8pp dsK94DbijwvgfPOArS4h8uPXiHLdC3ZtHBukQ3NxKQUOG2lJTyM26+8tr8G9OU2Vh0 bd40aU08rQBE00//a52LgrIL3WJPFX2Irh0puSqmBIYUAHUbYo18VpgY4sNhb//0M4 ZDvLy5CRq37/g== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v2 21/23] drm/msm: Support KMS backends without a display IRQ Reply-To: sashiko-reviews@lists.linux.dev To: "Jayant Shekhar" Cc: virtualization@lists.linux.dev, "Michael S. Tsirkin" , "Eugenio Perez" In-Reply-To: <20261026-jshekhar-dcp-hlos-v2-21-7cf014efdee1@oss.qualcomm.com> References: <20261026-jshekhar-dcp-hlos-v2-0-7cf014efdee1@oss.qualcomm.com> <20261026-jshekhar-dcp-hlos-v2-21-7cf014efdee1@oss.qualcomm.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Mon, 26 Oct 2026 14:40:14 +0000 X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Some MSM KMS backends receive display events through firmware or > another transport and therefore have no host-visible display interrupt. > Rejecting such a backend during common KMS initialization prevents > it from using the MSM DRM framework. >=20 > Allow KMS backends to use IRQ_NOTCONNECTED. DCP receives VSYNC and > frame-scan completion as asynchronous HFI events over VirtIO; its IPCC > interrupt is reserved for power-notify acknowledgments. Existing > IRQ-backed KMS implementations retain their current request and > teardown flow. >=20 > Assisted-by: LLM > Signed-off-by: Jayant Shekhar Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261026-jshekhar-d= cp-hlos-v2-0-7cf014efdee1@oss.qualcomm.com?part=3D21