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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-668d2a4b390sm4513271a12.28.2026.03.24.03.09.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 24 Mar 2026 03:09:34 -0700 (PDT) Message-ID: <2ef8138a-56a3-4851-a98b-597475ea8eb3@oss.qualcomm.com> Date: Tue, 24 Mar 2026 11:09:31 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 12/16] drm/msm/a6xx: Add SKU detection support for X2-85 To: Akhil P Oommen , Rob Clark , Sean Paul , Konrad Dybcio , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Marijn Suijten , David Airlie , Simona Vetter , Antonino Maniscalco , Connor Abbott , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org References: <20260324-a8xx-gpu-batch2-v1-0-fc95b8d9c017@oss.qualcomm.com> <20260324-a8xx-gpu-batch2-v1-12-fc95b8d9c017@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260324-a8xx-gpu-batch2-v1-12-fc95b8d9c017@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzI0MDA4MSBTYWx0ZWRfX6DuNHpqtHgDj E/pJTiEdt11Wdk5Bghj2hc10l7QY0s1f443ZvMQTfnhhjh98W/xHINpjgaNVZYI7wgoE+ajPRa+ 13TJI2RdVcK3fUQYOmWXkWzIB8v8AcDZJnml1pcTRM5sUyr2lLZ/dRmDXqYebFKUR/z/rQNemtL W3EFSLcKumufZy8lG7ppdekrw7BkSs8QTmeBvFNYMmRw6T+6P77C7LIoNwZwF5tuIBG1xkWUDRh lojDsLdETmRQdEeY2R2A3wqRuHSeOhuP8AoLLe/h13RJY9KPQh1GvSpM1kzo7D/j3rlWn5t3pXN QxfOL1TKjfcazAhKw0jZPx4eECMRVXnkfCtoZPo61K2FamNjW/bW95bPUIFYcxmu2ldtIv+QHSN IXhLiJ8YVQqHpe90ZljyFdHadhyG128gsRyI9+juWtYWjkJIxHm2/U1ROTJVHcM4wAOtsscPcdC sE35AIExMXtQ0xH/GGw== X-Proofpoint-GUID: usTLe9gMio9dJ275HnY9JLTwhqxsQyH_ X-Proofpoint-ORIG-GUID: usTLe9gMio9dJ275HnY9JLTwhqxsQyH_ X-Authority-Analysis: v=2.4 cv=I+pohdgg c=1 sm=1 tr=0 ts=69c262e2 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=u65CJqherDVI_0nTr6EA:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 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=2026-03-24_02,2026-03-23_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 phishscore=0 spamscore=0 priorityscore=1501 malwarescore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603240081 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 3/23/26 9:12 PM, Akhil P Oommen wrote: > Adreno X2-85 series present in Glymur chipset supports a new mechanism > for SKU detection. A new CX_MISC register exposes the combined (or > final) speedbin value from both HW fuse register and the Soft Fuse > register. > > Implement this new SKU detection along with a new quirk to identify the > GPUs that has SOFT SKU support. Also, enable this quirk for Adreno X2-85 > and add its SKU table to the catalog. > > Signed-off-by: Akhil P Oommen > --- [...] > + /* Set the speedbin value that is passed to userspace */ > + if (adreno_read_speedbin(&pdev->dev, &speedbin) || !speedbin) > + speedbin = 0xffff; > + adreno_gpu->speedbin = (uint16_t) (0xffff & speedbin); FWIW this is lower_16_bits() [...] > + if (info->quirks & ADRENO_QUIRK_SOFTFUSE) { > + *speedbin = a6xx_llc_read(a6xx_gpu, REG_A8XX_CX_MISC_SW_FUSE_FREQ_LIMIT_STATUS); > + *speedbin = A8XX_CX_MISC_SW_FUSE_FREQ_LIMIT_STATUS_FINALFREQLIMIT(*speedbin); Do we need to act upon the other field here (SOFTSKUDISABLED)? Konrad