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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6411f8141e6sm3807288a12.15.2025.11.07.00.58.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 07 Nov 2025 00:58:52 -0800 (PST) Message-ID: Date: Fri, 7 Nov 2025 09:58:48 +0100 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 v2 1/6] drm/msm/a6xx: Add support for Adreno 612 To: Akhil P Oommen , Rob Clark , Sean Paul , Konrad Dybcio , Dmitry Baryshkov , Abhinav Kumar , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Jessica Zhang Cc: Dan Carpenter , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Jie Zhang References: <20251107-qcs615-spin-2-v2-0-a2d7c4fbf6e6@oss.qualcomm.com> <20251107-qcs615-spin-2-v2-1-a2d7c4fbf6e6@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20251107-qcs615-spin-2-v2-1-a2d7c4fbf6e6@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTA3MDA3MSBTYWx0ZWRfXwHSDIHBaCc2J fE+nFZ7jeTQrzxhmQIA0XW4XDBMClxtwWTXLX6fVBvJ7aNOYByG3fvH7UMEkLIduPIcIZBSLwqR +SVGKb1xg8pnBbfSd+ZlePwBe2lHCX1poKXGCPq8hmciOpZrsIQ+6oGPcXgMJDvlum9gWHJV8jD 6ZcF5SfwtdhDOJxh8SvzQ0rOk9L3PpXBMCCduzGS4SsYbSXxmoE46qP2/1JRRGSUclJNjar0opC sJe/gb7kkcVIOzeNNUCtnDwEZ6nmpCTYXyjkq8XweBN/ohT7xlVJUDBHvo8wRNbauVEHiNvfHTR 65Lmd/Sxp/7ucsaNa8Yt8J+5/UdC0eSUSzi8ZoqmZgjhgLzOJbEZvMd8rAL2Pis78lMG/whP4p7 wDEKdHPxrR3jyeJfXZwfZeyAnhWJow== X-Proofpoint-ORIG-GUID: NrDpp44Lz-UgmRN9WdQ9dVGBk_NjV2xi X-Proofpoint-GUID: NrDpp44Lz-UgmRN9WdQ9dVGBk_NjV2xi X-Authority-Analysis: v=2.4 cv=BrKQAIX5 c=1 sm=1 tr=0 ts=690db4ce cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=DZDN4dxgVV-jXp9GYI4A:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-07_02,2025-11-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 priorityscore=1501 impostorscore=0 bulkscore=0 clxscore=1015 adultscore=0 phishscore=0 malwarescore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511070071 On 11/6/25 9:50 PM, Akhil P Oommen wrote: > From: Jie Zhang > > Add support for Adreno 612 GPU found in SM6150/QCS615 chipsets. > A612 falls under ADRENO_6XX_GEN1 family and is a cut down version > of A615 GPU. > > A612 has a new IP called Reduced Graphics Management Unit or RGMU > which is a small state machine which helps to toggle GX GDSC > (connected to CX rail) to implement IFPC feature. It doesn't support > any other features of a full fledged GMU like clock control, resource > voting to rpmh etc. So we need linux clock driver support like other > gmu-wrapper implementations to control gpu core clock and gpu GX gdsc. > This patch skips RGMU core initialization and act more like a > gmu-wrapper case. > > Signed-off-by: Jie Zhang > Signed-off-by: Akhil P Oommen > --- [...] > /* Enable fault detection */ > - if (adreno_is_a730(adreno_gpu) || > + if (adreno_is_a612(adreno_gpu) || > + adreno_is_a730(adreno_gpu) || > adreno_is_a740_family(adreno_gpu)) > gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) | 0xcfffff); Downstream sets this to 0x3fffff, but IDK if having a timeout too large is an issue Konrad