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24 #include <linux/debugfs.h>
25 #include <linux/pm_runtime.h>
28 #include "amdgpu_rap.h"
31 * DOC: AMDGPU RAP debugfs test interface
34 * echo opcode > <debugfs_dir>/dri/xxx/rap_test
37 * currently, only 2 is supported by Linux host driver,
38 * opcode 2 stands for TA_CMD_RAP__VALIDATE_L0, used to
39 * trigger L0 policy validation, you can refer more detail
40 * from header file ta_rap_if.h
43 static ssize_t amdgpu_rap_debugfs_write(struct file *f, const char __user *buf,
44 size_t size, loff_t *pos)
46 struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private;
47 struct ta_rap_shared_memory *rap_shared_mem;
48 struct ta_rap_cmd_output_data *rap_cmd_output;
49 struct drm_device *dev = adev_to_drm(adev);
51 enum ta_rap_status status;
54 if (*pos || size != 2)
57 ret = kstrtouint_from_user(buf, size, *pos, &op);
61 ret = pm_runtime_get_sync(dev->dev);
63 pm_runtime_put_autosuspend(dev->dev);
67 /* make sure gfx core is on, RAP TA cann't handle
68 * GFX OFF case currently.
70 amdgpu_gfx_off_ctrl(adev, false);
74 ret = psp_rap_invoke(&adev->psp, op, &status);
75 if (!ret && status == TA_RAP_STATUS__SUCCESS) {
76 dev_info(adev->dev, "RAP L0 validate test success.\n");
78 rap_shared_mem = (struct ta_rap_shared_memory *)
79 adev->psp.rap_context.context.mem_context.shared_buf;
80 rap_cmd_output = &(rap_shared_mem->rap_out_message.output);
82 dev_info(adev->dev, "RAP test failed, the output is:\n");
83 dev_info(adev->dev, "\tlast_subsection: 0x%08x.\n",
84 rap_cmd_output->last_subsection);
85 dev_info(adev->dev, "\tnum_total_validate: 0x%08x.\n",
86 rap_cmd_output->num_total_validate);
87 dev_info(adev->dev, "\tnum_valid: 0x%08x.\n",
88 rap_cmd_output->num_valid);
89 dev_info(adev->dev, "\tlast_validate_addr: 0x%08x.\n",
90 rap_cmd_output->last_validate_addr);
91 dev_info(adev->dev, "\tlast_validate_val: 0x%08x.\n",
92 rap_cmd_output->last_validate_val);
93 dev_info(adev->dev, "\tlast_validate_val_exptd: 0x%08x.\n",
94 rap_cmd_output->last_validate_val_exptd);
98 dev_info(adev->dev, "Unsupported op id: %d, ", op);
99 dev_info(adev->dev, "Only support op 2(L0 validate test).\n");
103 amdgpu_gfx_off_ctrl(adev, true);
104 pm_runtime_mark_last_busy(dev->dev);
105 pm_runtime_put_autosuspend(dev->dev);
110 static const struct file_operations amdgpu_rap_debugfs_ops = {
111 .owner = THIS_MODULE,
113 .write = amdgpu_rap_debugfs_write,
114 .llseek = default_llseek
117 void amdgpu_rap_debugfs_init(struct amdgpu_device *adev)
119 #if defined(CONFIG_DEBUG_FS)
120 struct drm_minor *minor = adev_to_drm(adev)->primary;
122 if (!adev->psp.rap_context.context.initialized)
125 debugfs_create_file("rap_test", S_IWUSR, minor->debugfs_root,
126 adev, &amdgpu_rap_debugfs_ops);