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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 Fri, 2023-12-22 at 12:52 +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. > > Signed-off-by: Jason-JH.Lin > --- [snip] > + > +/** > + * struct iwc_cmdq_command_t - structure for excuting cmdq task in > secure world. > + * @thread: GCE secure thread index to execute command. > + * @scenario: scenario to execute command. > + * @priority: priority of GCE secure thread. > + * @cmd_size: command size used in command buffer. > + * @eng_flag: HW engine flag need to enable protection > configuration. > + * @va_base: command buffer > + * @wait_cookie: index in thread's task list, it should be > (nextCookie - 1). > + * @reset_exec: reset HW thread. > + * @caller_pid: pid of client module. > + * @caller_name: name of client module. > + * @metadata: metadata structure for converting a list of secure > buffer address. > + * @extension: extension HW engine flag to be protcted in secure > world. > + * @readback_pa: readback buffer pa. > + * @normal_task_handle: handle to reference task in normal world. > + * @mdp_extension: extension MDP HW engine flag to be protcted in > secure world. > + * @readback_engs: array of readback engines parameters. > + * @readback_cnt: count of readback_engs array. > + */ > +struct iwc_cmdq_command_t { > + /* basic execution data */ > + u32 thread; > + u32 scenario; > + u32 priority; > + u32 cmd_size; > + u64 eng_flag; > + u32 va_base[CMDQ_IWC_MAX_CMD_LENGTH]; > + > + /* exec order data */ > + u32 wait_cookie; > + bool reset_exec; > + > + /* client info */ > + s32 caller_pid; Useless, drop it. > + char caller_name[CMDQ_IWC_CLIENT_NAME]; Ditto. > + > + /* metadata */ > + struct iwc_cmdq_metadata_t metadata; > + > + /* client extension bits */ > + u64 extension; Ditto. > + u64 readback_pa; Ditto. > + > + /* debug */ > + u64 normal_task_handle; > + > + /* SVP HDR */ > + u32 mdp_extension; Ditto. > + struct readback_engine readback_engs[CMDQ_MAX_READBACK_ENG]; Ditto. > + u32 readback_cnt; Ditto. Regards, CK > +}; > + _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel