/* * 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 <linux/debugfs.h>#include <linux/pm_runtime.h> #include "amdgpu.h"#include "amdgpu_rap.h" /** * DOC: AMDGPU RAP debugfs test interface * * how to use? * echo opcode > <debugfs_dir>/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_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}; 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);}