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Wed, 20 May 2026 22:45:45 -0700 (PDT) X-Received: by 2002:a17:90b:3811:b0:36a:2a9b:3fb5 with SMTP id 98e67ed59e1d1-36a455f8dd7mr1388571a91.18.1779342344735; Wed, 20 May 2026 22:45:44 -0700 (PDT) Received: from hu-ekangupt-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-36a3cb323e3sm1474847a91.4.2026.05.20.22.45.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 May 2026 22:45:44 -0700 (PDT) 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 v12 0/4] misc: fastrpc: Add polling mode support Date: Thu, 21 May 2026 11:15:35 +0530 Message-Id: <20260521054539.128651-1-ekansh.gupta@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=K9kS2SWI c=1 sm=1 tr=0 ts=6a0e9c0a cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=NEAV23lmAAAA:8 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=FeUw2I9XaFYL6OdlDaEA:9 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-GUID: C-Nmza0IGY3kPAp7kBCLXYFqeth8Yyqp X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTIxMDA1MiBTYWx0ZWRfXzmQyCl0r8HdR J+KGMCJgfDjUIrb8iWnFyVCHWj/nyunlrhfkK9/+T8seqkoDXj34PYmQXB9vr7Az6EJztl8dNP4 jK3nlP19aYwkuEmXTdYNdhBkNtg81Td8GdkkjRnF/8LHhZjjmdfwXIAqDOzVoxi7hZP03nC2+01 WWVr+XQayVlYw3Yn0FCw/wnmlQHoUN6UgWP85lPNUzVWNkZyuzQc7LHMXb3obVuRMntHcHh8Tn2 3Vm6Oc16Lp+CZ8vNovD0b6YioE7xgUEO5+5jfnQIw9KLvfNlxHnAQxYjeBaV6AxLoMOZFBLbQK8 wetN5tYGFM+I8YPrL4/WurdwJTePcPFz5F8+ECT5Berk9ZDikeoJd8YcqqWEeJpCB5a+dW5reKQ 8T1NldqvG0433faED04R1vDYy9rS3GfC54gYkqaREYAqMEC3HlXqaS5ts2oAJ3WNSL7sZA+U6dq zPdnKbdxcuSV89MRzFw== X-Proofpoint-ORIG-GUID: C-Nmza0IGY3kPAp7kBCLXYFqeth8Yyqp X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-20_03,2026-05-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 bulkscore=0 adultscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605210052 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 [v11]: https://lore.kernel.org/all/20260520065047.3415790-1-ekansh.gupta@oss.qualcomm.com/ Changes in v12: - Fixed poll_mode_supported check. Changes in v11: - Moved back to read_poll*. - Improved error handling. Changes in v10: - Add milos and sar2130p to fastrpc_poll_supported_machines. - Updated comment for supported platform list. Changes in v9: - Added platform support check. - Moved to readl as per Luben's suggestion. - Cleaned up fastrpc_wait_for_completion(). Changes in v8: - Added more comments. Changes in v7: - Fixed warnings. - Fixed commit text. - Addressed clean-up comments. Changes in v6: - Fixed poll memory calculation. - Added few formatting changes. Changes in v5: - Add more details in commit text. 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 | 189 ++++++++++++++++++++++++++++++++---- include/uapi/misc/fastrpc.h | 29 ++++++ 2 files changed, 198 insertions(+), 20 deletions(-) -- 2.34.1