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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, Jason: On Sun, 2024-05-26 at 22:44 +0800, Jason-JH.Lin wrote: > To support secure video path feature, GCE have to read/write registgers > in the secure world. GCE will enable the secure access permission to the > HW who wants to access the secure content buffer. > > Add CMDQ secure mailbox driver to make CMDQ client user is able to > sending their HW settings to the secure world. So that GCE can execute > all instructions to configure HW in the secure world. > > TODO: > 1. Squash cmdq_sec_task_exec_work() into cmdq_sec_mbox_send_data(). > 2. Call into TEE to query cookie instead of using shared memory in > cmdq_sec_get_cookie(). > 3. Register shared memory as command buffer instead of copying normal > command buffer to IWC shared memory. > 4. Use SOFTDEP to make cmdq_sec_probe later than OPTEE loaded and then > move cmdq_sec_session_init into cmdq_sec_probe(). > 5. Remove timeout detection in cmdq_sec_session_send(). > > Signed-off-by: Jason-JH.Lin > Signed-off-by: Hsiao Chien Sung > --- [snip] > +/** > + * struct readback_engine - readback engine parameters. > + * @engine: HW engine flag for readback. > + * @start: start address pa of readback buffer. > + * @count: u32 size count of readback buffer. > + * @param: other parameters need in secure world. > + */ > +struct readback_engine { > + u32 engine; > + u32 start; > + u32 count; > + u32 param; > +}; Useless, so drop it. Regards, CK _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel