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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b9c2249fcbcsm37375066b.5.2026.04.01.01.46.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 01 Apr 2026 01:46:07 -0700 (PDT) Message-ID: Date: Wed, 1 Apr 2026 10:46:04 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/6] drm/msm/adreno: set cx_mmio regardless of if platform has LLCC To: Alexander Koskovich , Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Konrad Dybcio , Akhil P Oommen , Bjorn Andersson Cc: Luca Weiss , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260331-adreno-810-v1-0-725801dbb12b@pm.me> <20260331-adreno-810-v1-3-725801dbb12b@pm.me> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260331-adreno-810-v1-3-725801dbb12b@pm.me> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDAxMDA3OCBTYWx0ZWRfX8mR5KvU+uKvN mp9UKS5m6VLWkW1zg+NxqwD3PV1fv0NA17RxHnHspZ8e3ZBaT4pwBq2EpqVF5FAfWoDYwrQnJbH 878N1IKdmY6zHecE4ugru8TWHKFHvRJ2LvUiI0mPxN/HbLcKWcBTf3ZUZm/rSTIvwMsNj2XdtiX Hph0l3ofq/b3nqa1lbX4dZk2ktFi0QLIfs05r0ofJdMWfcHDo2S/MGCeYGJJIU6TqhmxucaI0LM nUtqJwKc6TYXiKZ8rrRTxBNwl6v90waKhupoNqqysO6+46gh5+oDW9EJL8kTrQHtxZSU6TiebnJ dRgxsFj9cXkDAkPUoz6jUM3AYXT83LtbpNzEb1ItpAz6jFyYhF5KG/Bn4utNK+XGFoZOqUDutI1 BKN9ZiqeOSIkN4xnqK0pWuYvk12EylAB6EdgQlfxr/EOJDi7kHLsGFgaHl88L2fT/jIwv0cQKFH 2wLHlVcRDifVlPeIjpw== X-Proofpoint-GUID: ZCED7nAh1pHEPL9CoXOsOuYxOZo55vDH X-Authority-Analysis: v=2.4 cv=YsQChoYX c=1 sm=1 tr=0 ts=69ccdb52 cx=c_pps a=oc9J++0uMp73DTRD5QyR2A==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=k3NpOJoY7FANPw3bM2sA:9 a=QEXdDO2ut3YA:10 a=iYH6xdkBrDN1Jqds4HTS:22 X-Proofpoint-ORIG-GUID: ZCED7nAh1pHEPL9CoXOsOuYxOZo55vDH X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-01_02,2026-04-01_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 bulkscore=0 clxscore=1015 impostorscore=0 phishscore=0 lowpriorityscore=0 adultscore=0 priorityscore=1501 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604010078 On 4/1/26 4:17 AM, Alexander Koskovich wrote: > Platforms without a LLCC (e.g. milos) still need to be able to read and > write to the cx_mem region. Previously if LLCC slices were unavailable > the cx_mmio mapping was overwritten with ERR_PTR, causing a crash when > the GMU later accessed cx_mem. > > Move the cx_mmio mapping out of a6xx_llc_slices_init() into > a6xx_gpu_init() so that cx_mem mapping is independent of LLCC. > > Signed-off-by: Alexander Koskovich > --- Reviewed-by: Konrad Dybcio Konrad