/* * Copyright 2020 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 #include #include "amdgpu.h" #include "amdgpu_rap.h" #ifdef __linux__ /** * DOC: AMDGPU RAP debugfs test interface * * how to use? * echo opcode > /dri/xxx/rap_test * * opcode: * currently, only 2 is supported by Linux host driver, * opcode 2 stands for TA_CMD_RAP__VALIDATE_L0, used to * trigger L0 policy validation, you can refer more detail * from header file ta_rap_if.h * */ static ssize_t amdgpu_rap_debugfs_write(struct file *f, const char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private; struct ta_rap_shared_memory *rap_shared_mem; struct ta_rap_cmd_output_data *rap_cmd_output; struct drm_device *dev = adev_to_drm(adev); uint32_t op; enum ta_rap_status status; int ret; if (*pos || size != 2) return -EINVAL; ret = kstrtouint_from_user(buf, size, *pos, &op); if (ret) return ret; ret = pm_runtime_get_sync(dev->dev); if (ret < 0) { pm_runtime_put_autosuspend(dev->dev); return ret; } /* make sure gfx core is on, RAP TA cann't handle * GFX OFF case currently. */ amdgpu_gfx_off_ctrl(adev, false); switch (op) { case 2: ret = psp_rap_invoke(&adev->psp, op, &status); if (!ret && status == TA_RAP_STATUS__SUCCESS) { dev_info(adev->dev, "RAP L0 validate test success.\n"); } else { rap_shared_mem = (struct ta_rap_shared_memory *) adev->psp.rap_context.context.mem_context.shared_buf; rap_cmd_output = &(rap_shared_mem->rap_out_message.output); dev_info(adev->dev, "RAP test failed, the output is:\n"); dev_info(adev->dev, "\tlast_subsection: 0x%08x.\n", rap_cmd_output->last_subsection); dev_info(adev->dev, "\tnum_total_validate: 0x%08x.\n", rap_cmd_output->num_total_validate); dev_info(adev->dev, "\tnum_valid: 0x%08x.\n", rap_cmd_output->num_valid); dev_info(adev->dev, "\tlast_validate_addr: 0x%08x.\n", rap_cmd_output->last_validate_addr); dev_info(adev->dev, "\tlast_validate_val: 0x%08x.\n", rap_cmd_output->last_validate_val); dev_info(adev->dev, "\tlast_validate_val_exptd: 0x%08x.\n", rap_cmd_output->last_validate_val_exptd); } break; default: dev_info(adev->dev, "Unsupported op id: %d, ", op); dev_info(adev->dev, "Only support op 2(L0 validate test).\n"); break; } amdgpu_gfx_off_ctrl(adev, true); pm_runtime_mark_last_busy(dev->dev); pm_runtime_put_autosuspend(dev->dev); return size; } static const struct file_operations amdgpu_rap_debugfs_ops = { .owner = THIS_MODULE, .read = NULL, .write = amdgpu_rap_debugfs_write, .llseek = default_llseek }; #endif /* __linux__ */ void amdgpu_rap_debugfs_init(struct amdgpu_device *adev) { struct drm_minor *minor = adev_to_drm(adev)->primary; if (!adev->psp.rap_context.context.initialized) return; debugfs_create_file("rap_test", S_IWUSR, minor->debugfs_root, adev, &amdgpu_rap_debugfs_ops); }