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Wed, 7 Feb 2024 19:19:36 GMT Received: from [10.110.9.143] (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Wed, 7 Feb 2024 11:19:36 -0800 Message-ID: Date: Wed, 7 Feb 2024 11:19:35 -0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: [PATCH v3 3/4] drm/msm: add a kernel param to select between MDP5 and DPU drivers Content-Language: en-US To: Dmitry Baryshkov , Rob Clark , Sean Paul , Marijn Suijten , David Airlie , Daniel Vetter CC: , , , , Stephen Boyd References: <20240106-fd-migrate-mdp5-v3-0-3d2750378063@linaro.org> <20240106-fd-migrate-mdp5-v3-3-3d2750378063@linaro.org> From: Abhinav Kumar In-Reply-To: <20240106-fd-migrate-mdp5-v3-3-3d2750378063@linaro.org> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: uXQeDuwH3EepLNEDio5yi5-gG9slAwva X-Proofpoint-GUID: uXQeDuwH3EepLNEDio5yi5-gG9slAwva X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-07_09,2024-02-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 mlxscore=0 lowpriorityscore=0 suspectscore=0 mlxlogscore=794 impostorscore=0 phishscore=0 spamscore=0 adultscore=0 bulkscore=0 clxscore=1015 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401310000 definitions=main-2402070143 On 1/5/2024 3:34 PM, Dmitry Baryshkov wrote: > For some of the platforms (e.g. SDM660, SDM630, MSM8996, etc.) it is > possible to support this platform via the DPU driver (e.g. to provide > support for DP, multirect, etc). Add a modparam to be able to switch > between these two drivers. > > All platforms supported by both drivers are by default handled by the > MDP5 driver. To let them be handled by the DPU driver pass the > `msm.prefer_mdp5=false` kernel param. > > Reviewed-by: Stephen Boyd > Signed-off-by: Dmitry Baryshkov > --- Reviewed-by: Abhinav Kumar