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Thu, 27 Nov 2025 21:05:39 -0800 (PST) Received: from hu-ekangupt-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29bceb40276sm31952075ad.73.2025.11.27.21.05.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Nov 2025 21:05:38 -0800 (PST) From: Ekansh Gupta To: srini@kernel.org, linux-arm-msm@vger.kernel.org Cc: gregkh@linuxfoundation.org, quic_bkumar@quicinc.com, linux-kernel@vger.kernel.org, quic_chennak@quicinc.com, dri-devel@lists.freedesktop.org, arnd@arndb.de, dmitry.baryshkov@oss.qualcomm.com Subject: [PATCH v4 0/4] misc: fastrpc: Add polling mode support Date: Fri, 28 Nov 2025 10:35:30 +0530 Message-Id: <20251128050534.437755-1-ekansh.gupta@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTI4MDAzNSBTYWx0ZWRfX13TUeqfAHIOJ c6BaI8PB2nr+gWv7UUj8PJtfxSLMySHugnDZOYEz0fRyPktpCjRssVV6g72RmnXM958vyL9YdR+ cSKVGPde1oKax5SvUeTleB6xIQBSL9nF5RyUKvQYcgfyNo8ZOi4Bw1lP8Y87S2HFanYrBJot4C5 DzLIPGo1kdvfaLk5LKedBcxCN4GKvyvCH7P3+VrgkGmudo5beXkUZSuRUotb92bm2XXJ/htoWXb CA10OKGBwBOnQhaHHhPnHixdATutUTGVYmr581zDa9yGpaRHiOAEKC3w/F6kq4T0Y1gI02bEB1P OZDZ6rnzeuGf8lUJuZ74VhVIJ8/2Xnl2MNustjufudpvZbOxn31Lrfd2DBfZFQZgtm+3+Jl9L/o 9tvHHwKEYXQqG9A2XLtAYxceGFcqkg== X-Proofpoint-GUID: tf7ckfFSEfKn2nupfQzs5-g8Wq058ZvR X-Proofpoint-ORIG-GUID: tf7ckfFSEfKn2nupfQzs5-g8Wq058ZvR X-Authority-Analysis: v=2.4 cv=PJoCOPqC c=1 sm=1 tr=0 ts=69292da4 cx=c_pps a=JL+w9abYAAE89/QcEU+0QA==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=6UeiqGixMTsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=NEAV23lmAAAA:8 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=66tqkxcFYQ9a7oDX834A:9 a=324X-CrmTo6CU4MGRt3R: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=2025-11-25_02,2025-11-27_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 suspectscore=0 phishscore=0 priorityscore=1501 clxscore=1015 adultscore=0 impostorscore=0 malwarescore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511280035 This patch series adds polling mode feature that have been missing in upstream FastRPC driver. - Add changes to move fdlist to ctx structure to avoid code duplicacy. - Update context mask to support polling mode. - Add changes to support polling feature. Userspace change: https://github.com/qualcomm/fastrpc/pull/258 Patch [v3]: https://lore.kernel.org/all/20251113064111.2426325-1-ekansh.gupta@oss.qualcomm.com/ Changes in v4: - Replace hardcoded ctxid mask with GENMASK. - Fixed commit text. Changes in v3: - Resolve compilation warning. Changes in v2: - Added comments and fixed commit text. - Defined context id position as a macro. - Added new IOCTL to control polling mode as always enabling it might cause excess power consumption. - Cleaned up polling mode implementation. Ekansh Gupta (4): misc: fastrpc: Move fdlist to invoke context structure misc: fastrpc: Replace hardcoded ctxid mask with GENMASK misc: fastrpc: Expand context ID mask for DSP polling mode support misc: fastrpc: Add polling mode support for fastRPC driver drivers/misc/fastrpc.c | 164 +++++++++++++++++++++++++++++++----- include/uapi/misc/fastrpc.h | 9 ++ 2 files changed, 151 insertions(+), 22 deletions(-) -- 2.34.1