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[199.106.103.254]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-31cc3e5b56fsm1593934a91.16.2025.07.18.10.14.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 18 Jul 2025 10:14:45 -0700 (PDT) Message-ID: <7753e1e8-5e2d-4d8b-8a46-a6fbc58a144d@oss.qualcomm.com> Date: Fri, 18 Jul 2025 11:14:42 -0600 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 02/10] accel/rocket: Add a new driver for Rockchip's NPU To: Tomeu Vizoso , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Oded Gabbay , Jonathan Corbet , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sumit Semwal , =?UTF-8?Q?Christian_K=C3=B6nig?= , Sebastian Reichel , Nicolas Frattaroli , Kever Yang , Robin Murphy , Daniel Stone , Da Xue , Philipp Zabel Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-doc@vger.kernel.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, Robert Foss References: <20250713-6-10-rocket-v8-0-64fa3115e910@tomeuvizoso.net> <20250713-6-10-rocket-v8-2-64fa3115e910@tomeuvizoso.net> Content-Language: en-US From: Jeff Hugo In-Reply-To: <20250713-6-10-rocket-v8-2-64fa3115e910@tomeuvizoso.net> X-Authority-Analysis: v=2.4 cv=Z5PsHGRA c=1 sm=1 tr=0 ts=687a8107 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=IkcTkHD0fZMA:10 a=Wb1JkmetP80A:10 a=VwQbUJbxAAAA:8 a=DISFzqtZAAAA:8 a=EUspDBNiAAAA:8 a=V6djkQ_TFPnTOxwyQKcA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 a=aug85vrO5LANNmmtkfAW:22 X-Proofpoint-ORIG-GUID: mPk4LyRmGnxsaqCIKr4e4lJJjnG4cQlv X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzE4MDEzNiBTYWx0ZWRfX9mFGCYQ8H6Lk FyeIs5ejtKN3uq+fyIVF4pfiFfyYI6M/sjklA0NHWYbjqgcic8WlQpiP/jeVwbdGDDd+1TwDp+G nhyYz02y/9IvBfkGpUsgeW8HtoDaT+EXzuFyrYZc4XpHami30LGyLdR94nHo5KSMUJLGvxwBuCm 56qR5Tr+dGTqJOF59LmIkQmECKt7RTBbgzpOLCL+XnvF9Z9ot+i9rd8fQH7il0wdeBk56OQ2wU4 mnMQz/yTwpJtWIF+Og68IwonqmCf1k4A/rC/QqlmuyreKFBE/lcllJasKLh6OytumSpjyq9WpF9 i8VhBPR0GNXNLSaAIlWlcEQm5wm4lF4G1jsb1KYosg4Idh29wu/HLObq+dFFhWFKvuWn0cbjh1e RkziM17/S5XHUJEGD6PpRO0rktnNfvbsF+d8JXp14VdO7rgZA1fb5CIQ0lbHCHIqTFSavFkd X-Proofpoint-GUID: mPk4LyRmGnxsaqCIKr4e4lJJjnG4cQlv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-07-18_04,2025-07-17_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 mlxlogscore=999 suspectscore=0 spamscore=0 clxscore=1015 mlxscore=0 malwarescore=0 phishscore=0 lowpriorityscore=0 adultscore=0 priorityscore=1501 bulkscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2507180136 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250718_101448_082046_36B307AC X-CRM114-Status: GOOD ( 18.37 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org On 7/13/2025 2:38 AM, Tomeu Vizoso wrote: > This initial version supports the NPU as shipped in the RK3588 SoC and > described in the first part of its TRM, in Chapter 36. > > This NPU contains 3 independent cores that the driver can submit jobs > to. > > This commit adds just hardware initialization and power management. > > v2: > - Split cores and IOMMUs as independent devices (Sebastian Reichel) > - Add some documentation (Jeffrey Hugo) > - Be more explicit in the Kconfig documentation (Jeffrey Hugo) > - Remove resets, as these haven't been found useful so far (Zenghui Yu) > - Repack structs (Jeffrey Hugo) > - Use DEFINE_DRM_ACCEL_FOPS (Jeffrey Hugo) > - Use devm_drm_dev_alloc (Jeffrey Hugo) > - Use probe log helper (Jeffrey Hugo) > - Introduce UABI header in a later patch (Jeffrey Hugo) > > v3: > - Adapt to a split of the register block in the DT bindings (Nicolas > Frattaroli) > - Move registers header to its own commit (Thomas Zimmermann) > - Misc. cleanups (Thomas Zimmermann and Jeff Hugo) > - Make use of GPL-2.0-only for the copyright notice (Jeff Hugo) > - PM improvements (Nicolas Frattaroli) > > v4: > - Use bulk clk API (Krzysztof Kozlowski) > > v6: > - Remove mention to NVDLA, as the hardware is only incidentally related > (Kever Yang) > - Use calloc instead of GFP_ZERO (Jeff Hugo) > - Explicitly include linux/container_of.h (Jeff Hugo) > - pclk and npu clocks are now needed by all cores (Rob Herring) > > v7: > - Assign its own IOMMU domain to each client, for isolation (Daniel > Stone and Robin Murphy) > > v8: > - Kconfig: fix depends to be more explicit about Rockchip, and remove > superfluous selects (Robin Murphy) > - Use reset lines to reset the cores (Robin Murphy) > - Reference count the module > - Set dma_set_max_seg_size > - Correctly acquire a reference to the IOMMU (Robin Murphy) > - Remove notion of top core (Robin Murphy) > > Reviewed-by: Robert Foss > Tested-by: Heiko Stuebner > Signed-off-by: Tomeu Vizoso Reviewed-by: Jeff Hugo _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip