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Wed, 29 Jul 2026 01:05:34 -0700 (PDT) X-Received: by 2002:a05:622a:1aa5:b0:51c:2101:f0 with SMTP id d75a77b69052e-529d6f89194mr47546591cf.2.1785312334297; Wed, 29 Jul 2026 01:05:34 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6a050c49f7dsm496439a12.18.2026.07.29.01.05.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 29 Jul 2026 01:05:33 -0700 (PDT) Message-ID: Date: Wed, 29 Jul 2026 10:05:31 +0200 Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8] crypto: qce - Add runtime PM and interconnect bandwidth scaling support To: Kuldeep Singh , Udit Tiwari , herbert@gondor.apana.org.au, thara.gopinath@gmail.com, davem@davemloft.net Cc: linux-crypto@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, quic_neersoni@quicinc.com References: <20260517105233.807935-1-udit.tiwari@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI5MDA2NCBTYWx0ZWRfX9utrfW44tcKe GvRotav4GIgqqxPM/gpUh7xInrBMq1lJfnzTia+yUSIFXCeSHiAcVPKkUXl6liSHn/PHNsTv5+P OP5T/PmuQy5efXf/kYJm/jrbOJgB173tNk8uAF2AIuCYrpxYCYq5flgaKr6AMEFQs0MjDSaF9gI MSKp0zldEJ7ArKvYGHfBu6lQ65qUPZk7mb3zXFW3Rdz83vcbxtM8H0ZtjikMEitVLiREVyYl3CW MHqErEZ/58CAQfZ64pJXBYvFowFJIw8ZZ4lpShm4Mm2Qj/QakzUXFvYTx75U6BvuMP5M9xtLfu/ qjdr+rylOGVh29eVZyKtinJwoq5ssTBp5OHDwDAQH/6mAouUQZO8t3m9cI5+BcVIqW7NThLE00W f9Nm/ndn/WnBRM88sXVKhnDQ0b7BXVxZlAfHNyhGzfiY8SEDOU2FFwoIYcJaafxJlqmuAjsDwqp x5kTo5LCajotGTFvAdw== X-Proofpoint-ORIG-GUID: kwYVKTjKef3dAZAKtSrRg8nkISmzZCcV X-Proofpoint-GUID: kwYVKTjKef3dAZAKtSrRg8nkISmzZCcV X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI5MDA2NCBTYWx0ZWRfXx5jOJ67NW2mK lxsR0+yw2VBvTC0OU7iegesflwlfw7KBjn1dKJXW8MscbJNT3XVnh4nErzvLRTuny9hP1PlZWkh luIx9DMGzQgc0IdrCuiG94+UAiluUNI= X-Authority-Analysis: v=2.4 cv=fLIJG5ae c=1 sm=1 tr=0 ts=6a69b44f cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=e6B5lkgUXIycqPoEI80A:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-29_03,2026-07-28_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 malwarescore=0 phishscore=0 suspectscore=0 clxscore=1011 spamscore=0 impostorscore=0 adultscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607290064 On 7/28/26 8:11 AM, Kuldeep Singh wrote: >> The Qualcomm Crypto Engine (QCE) driver currently lacks support for >> runtime power management (PM) and interconnect bandwidth control. >> As a result, the hardware remains fully powered and clocks stay >> enabled even when the device is idle. Additionally, static >> interconnect bandwidth votes are held indefinitely, preventing the >> system from reclaiming unused bandwidth. >> >> Address this by enabling runtime PM and dynamic interconnect >> bandwidth scaling to allow the system to suspend the device when idle >> and scale interconnect usage based on actual demand. Improve overall >> system efficiency by reducing power usage and optimizing interconnect >> resource allocation. >> >> Signed-off-by: Udit Tiwari > > Herbert, can you please review and pick the patch if no further comments. > This is required to fix interconnect votes summary for qce driver. This needs to be rebased on linux-next/master Konrad