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Mon, 27 Jul 2026 23:11:30 -0700 (PDT) X-Received: by 2002:a17:90b:390d:b0:38d:ef48:b04 with SMTP id 98e67ed59e1d1-38f6a40bd5bmr1149405a91.10.1785219090089; Mon, 27 Jul 2026 23:11:30 -0700 (PDT) Received: from [10.218.31.125] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-38f642e34e5sm744240a91.16.2026.07.27.23.11.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Jul 2026 23:11:29 -0700 (PDT) Message-ID: Date: Tue, 28 Jul 2026 11:41:23 +0530 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: Udit Tiwari , konrad.dybcio@oss.qualcomm.com, herbert@gondor.apana.org.au, thara.gopinath@gmail.com, davem@davemloft.net, Herbert Xu 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: Kuldeep Singh In-Reply-To: <20260517105233.807935-1-udit.tiwari@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI4MDA1NSBTYWx0ZWRfX4pMj96f3j6MB 03QdBoO8XwUrq3+VFfS63vezy8DS7DdehysO3V5zbAy/nktQ+bxC/Ey4WXClYijVdGL4v5kJutX oI+iq+kDeH5x0aoTojSAUYzfqBmGRwoFwtJD0CwElFrNpoqnP5/JDzrzzVAZy0ZgmzrQFvvcDug yx56so/RNSGBbwZxhSBv3pDNW7Ufwv55+R1vm3JlWlS6d+vTJPhvjgb7Jq92UkJfmnV1e0wohOn choK57Nf31B7RH5nhAtIs8CJM4BYVQwUxUfYxlW9XOItfK67+JgQaBv/K/pXDpNAFolXYS+bcYa eN2bM3B0OL4bqX76J5rDZiRKniTwvINssEQMvuV2x/ZWQ0f6ud0uJ1UskOMNsO2qyMYHwkiAN7g OlM+M0sSxZY+KtMNumiGkshRyXZ430FlU5HPUHxS4yoBMUl6ZMsr/8lNahhgsS44ItJpYzSLZ7y GDAHfRrI+0IwILflnCw== X-Authority-Analysis: v=2.4 cv=RO+D2Yi+ c=1 sm=1 tr=0 ts=6a684813 cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=EUspDBNiAAAA:8 a=HDohle4KqOvtihE_74YA:9 a=QEXdDO2ut3YA:10 a=uKXjsCUrEbL0IQVhDsJ9:22 X-Proofpoint-ORIG-GUID: XFYQw9nmV2TlZ7cJjURJJtNGduPPM_Vt X-Proofpoint-GUID: XFYQw9nmV2TlZ7cJjURJJtNGduPPM_Vt X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI4MDA1NSBTYWx0ZWRfX0QzXrBH0ZaOV 5UihSPSMO06iC34vOr8HOXFNUqFw3XOlm+xedlnVyCeWQ3xT3mogKoiYGgTyx0WjejZlrvHd6x3 MPTEyxtZKzbjRe1iy01cpf92H4qmYTI= 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=2026-07-28_01,2026-07-27_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 phishscore=0 priorityscore=1501 spamscore=0 lowpriorityscore=0 adultscore=0 clxscore=1015 malwarescore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607280055 > 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. -- Regards Kuldeep