/* * Copyright 2021 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * */ #include <linux/debugfs.h> #include <linux/pm_runtime.h> #include "amdgpu.h" #include "amdgpu_securedisplay.h" /** * DOC: AMDGPU SECUREDISPLAY debugfs test interface * * how to use? * echo opcode <value> > <debugfs_dir>/dri/xxx/securedisplay_test * eg. echo 1 > <debugfs_dir>/dri/xxx/securedisplay_test * eg. echo 2 phy_id > <debugfs_dir>/dri/xxx/securedisplay_test * * opcode: * 1:Query whether TA is responding used only for validation pupose * 2: Send region of Interest and CRC value to I2C. (uint32)phy_id is * send to determine which DIO scratch register should be used to get * ROI and receive i2c_buf as the output. * * You can refer more detail from header file ta_securedisplay_if.h * */ void psp_securedisplay_parse_resp_status(struct psp_context *psp, enum ta_securedisplay_status status) { … } void psp_prep_securedisplay_cmd_buf(struct psp_context *psp, struct ta_securedisplay_cmd **cmd, enum ta_securedisplay_command command_id) { … } #if defined(CONFIG_DEBUG_FS) static ssize_t amdgpu_securedisplay_debugfs_write(struct file *f, const char __user *buf, size_t size, loff_t *pos) { … } static const struct file_operations amdgpu_securedisplay_debugfs_ops = …; #endif void amdgpu_securedisplay_debugfs_init(struct amdgpu_device *adev) { … }