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Wed, 01 Jul 2026 22:49:27 -0700 (PDT) X-Received: by 2002:a17:902:d48b:b0:2c9:feea:4e50 with SMTP id d9443c01a7336-2ca7e71111emr48372605ad.10.1782971367329; Wed, 01 Jul 2026 22:49:27 -0700 (PDT) Received: from [10.217.219.87] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ca9a8dadd7sm8058965ad.6.2026.07.01.22.49.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 01 Jul 2026 22:49:26 -0700 (PDT) Message-ID: <46b85bf0-05e1-4df4-a72a-48957d01acb9@oss.qualcomm.com> Date: Thu, 2 Jul 2026 11:19:23 +0530 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] soc: qcom: geni-se: Use HW PROG_RAM_DEPTH to validate firmware size To: Viken Dadhaniya , Bjorn Andersson , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20260701-qup-se-increase-ram-cnt-v2-1-0618a19f26c3@oss.qualcomm.com> Content-Language: en-US From: Mukesh Savaliya In-Reply-To: <20260701-qup-se-increase-ram-cnt-v2-1-0618a19f26c3@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: 3FNxZZkqva0oyYINcoARehnmBK1_6P3B X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAyMDA1NiBTYWx0ZWRfX/jfKIMQ2QIj3 ETFnFPt7n6QvhWEzSKvA2qh/0cVYo8NZyroC2XZQYODABh/yk5SopGIXO4ZVnQhAV3j6Eyrfuh2 tue1+JfyxCtYGdLf4GItAQ1Vw8nYnHo= X-Proofpoint-ORIG-GUID: 3FNxZZkqva0oyYINcoARehnmBK1_6P3B X-Authority-Analysis: v=2.4 cv=ceHiaHDM c=1 sm=1 tr=0 ts=6a45fbe9 cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=bC-a23v3AAAA:8 a=EUspDBNiAAAA:8 a=VwQbUJbxAAAA:8 a=1MucfLtolsqhG_ufqeUA:9 a=QEXdDO2ut3YA:10 a=GvdueXVYPmCkWapjIL-Q:22 a=FO4_E8m0qiDe52t0p3_H:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAyMDA1NiBTYWx0ZWRfX3R5mcVqi1F4+ uysvpysjtGd54/oNiyG95zPhbjrBx8SWig10z7do0ErX2YcCRCylyEZeOunCHPxx3lT8yeOaMnN sT8a2Vke0wuclQQ0rp1DenaeLRbSJ+RfRU6LAm4PaR6oLiWvgD47kG9uSxrCepCnx+HtVgucMGX Gl/9Hxt7BPLxEgN7xVEUYa2JDaxrCzxMs7FkRU4PjutboZfxxxlFwmmiva4Bl3tV+zMGePW7Xa1 6zS71h7t8Kzrxl38lSS9+uu3r/77PnVSzUEWTtJb3uP1Nec9u5EKzSCDSNUZ37BrwCCGzuoHRD8 0qv0Z07bbSRCcStIPwxu9NfSsJxBj9hHbHs0CpcllZ0jfOa2suFtIV94GglxnSoiTqvkL/EFz0k jG5f7OUY4dnvT+lJNMqXf6nALFo/SgkHme0QBW6bRAk13fr6qCMPrE8wxJ5m5mUdHUDaaZZ6zrr PdbHPJEETQk607xDqxQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-07-02_01,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 adultscore=0 clxscore=1015 suspectscore=0 spamscore=0 malwarescore=0 priorityscore=1501 bulkscore=0 lowpriorityscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607020056 On 7/1/2026 9:51 AM, Viken Dadhaniya wrote: > The hardcoded MAX_GENI_CFG_RAMn_CNT limit is not accurate for all SoCs: SOCs ? > some targets have less CFG RAM than the constant implies, while others > like QCS615 need more entries than the old limit of 455 allowed, causing > valid firmware to be rejected at load time. > > Rather than hardcoding a constant, read PROG_RAM_DEPTH from SE_HW_PARAM_2 > at runtime to get the actual CFG RAM depth of the hardware instance and > use that as the upper bound for firmware size validation. > > Fixes: d4bf06592ad6 ("soc: qcom: geni-se: Add support to load QUP SE Firmware via Linux subsystem") > Cc: stable@vger.kernel.org > Signed-off-by: Viken Dadhaniya > --- > Changes in v2: > - Replace hardcoded MAX_GENI_CFG_RAMn_CNT with runtime read of > PROG_RAM_DEPTH from SE_HW_PARAM_2 for per-SoC accuracy > - Link to v1: https://patch.msgid.link/20260522-qup-se-increase-ram-cnt-v1-1-71854d0b2ef0@oss.qualcomm.com > --- > drivers/soc/qcom/qcom-geni-se.c | 23 +++++++++++++---------- > include/linux/soc/qcom/geni-se.h | 4 ++++ > 2 files changed, 17 insertions(+), 10 deletions(-) > > diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c > index cd1779b6a91a..87907f559bd4 100644 > --- a/drivers/soc/qcom/qcom-geni-se.c > +++ b/drivers/soc/qcom/qcom-geni-se.c [...] > > @@ -1066,10 +1067,12 @@ static struct se_fw_hdr *geni_find_protocol_fw(struct device *dev, const struct > sefw->fw_size_in_items = cpu_to_le16(fw_size); > } > > - if (fw_size >= MAX_GENI_CFG_RAMn_CNT) { > + prog_ram_depth = FIELD_GET(PROG_RAM_DEPTH_MSK, > + readl_relaxed(se->base + SE_HW_PARAM_2)); > + if (fw_size >= prog_ram_depth) { > dev_err(dev, > - "Firmware size (%u) exceeds max allowed RAMn count (%u)\n", > - fw_size, MAX_GENI_CFG_RAMn_CNT); > + "Firmware size (%u) exceeds HW PROG_RAM_DEPTH (%u)\n", Actual programmable FW memory ? something which is readable instead of same macro. > + fw_size, prog_ram_depth); > continue; > } [...]