1 files changed, 105 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index ae0c83237608..426b63e4f1f6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -1364,6 +1364,25 @@ static int amdgpu_debugfs_evict_gtt(void *data, u64 *val)
 	return 0;
 }
 
+static int amdgpu_debugfs_benchmark(void *data, u64 val)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)data;
+	struct drm_device *dev = adev_to_drm(adev);
+	int r;
+
+	r = pm_runtime_get_sync(dev->dev);
+	if (r < 0) {
+		pm_runtime_put_autosuspend(dev->dev);
+		return r;
+	}
+
+	r = amdgpu_benchmark(adev, val);
+
+	pm_runtime_mark_last_busy(dev->dev);
+	pm_runtime_put_autosuspend(dev->dev);
+
+	return r;
+}
 
 static int amdgpu_debugfs_vm_info_show(struct seq_file *m, void *unused)
 {
@@ -1400,6 +1419,8 @@ DEFINE_DEBUGFS_ATTRIBUTE(amdgpu_evict_vram_fops, amdgpu_debugfs_evict_vram,
 			 NULL, "%lld\n");
 DEFINE_DEBUGFS_ATTRIBUTE(amdgpu_evict_gtt_fops, amdgpu_debugfs_evict_gtt,
 			 NULL, "%lld\n");
+DEFINE_DEBUGFS_ATTRIBUTE(amdgpu_benchmark_fops, NULL, amdgpu_debugfs_benchmark,
+			 "%lld\n");
 
 static void amdgpu_ib_preempt_fences_swap(struct amdgpu_ring *ring,
 					  struct dma_fence **fences)
@@ -1619,6 +1640,86 @@ DEFINE_DEBUGFS_ATTRIBUTE(fops_ib_preempt, NULL,
 DEFINE_DEBUGFS_ATTRIBUTE(fops_sclk_set, NULL,
 			amdgpu_debugfs_sclk_set, "%llu\n");
 
+static ssize_t amdgpu_reset_dump_register_list_read(struct file *f,
+				char __user *buf, size_t size, loff_t *pos)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private;
+	char reg_offset[12];
+	int i, ret, len = 0;
+
+	if (*pos)
+		return 0;
+
+	memset(reg_offset, 0, 12);
+	ret = down_read_killable(&adev->reset_domain->sem);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < adev->num_regs; i++) {
+		sprintf(reg_offset, "0x%x\n", adev->reset_dump_reg_list[i]);
+		up_read(&adev->reset_domain->sem);
+		if (copy_to_user(buf + len, reg_offset, strlen(reg_offset)))
+			return -EFAULT;
+
+		len += strlen(reg_offset);
+		ret = down_read_killable(&adev->reset_domain->sem);
+		if (ret)
+			return ret;
+	}
+
+	up_read(&adev->reset_domain->sem);
+	*pos += len;
+
+	return len;
+}
+
+static ssize_t amdgpu_reset_dump_register_list_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;
+	char reg_offset[11];
+	uint32_t *tmp;
+	int ret, i = 0, len = 0;
+
+	do {
+		memset(reg_offset, 0, 11);
+		if (copy_from_user(reg_offset, buf + len,
+					min(10, ((int)size-len)))) {
+			ret = -EFAULT;
+			goto error_free;
+		}
+
+		tmp = krealloc_array(tmp, i + 1, sizeof(uint32_t), GFP_KERNEL);
+		if (sscanf(reg_offset, "%X %n", &tmp[i], &ret) != 1) {
+			ret = -EINVAL;
+			goto error_free;
+		}
+
+		len += ret;
+		i++;
+	} while (len < size);
+
+	ret = down_write_killable(&adev->reset_domain->sem);
+	if (ret)
+		goto error_free;
+
+	swap(adev->reset_dump_reg_list, tmp);
+	adev->num_regs = i;
+	up_write(&adev->reset_domain->sem);
+	ret = size;
+
+error_free:
+	kfree(tmp);
+	return ret;
+}
+
+static const struct file_operations amdgpu_reset_dump_register_list = {
+	.owner = THIS_MODULE,
+	.read = amdgpu_reset_dump_register_list_read,
+	.write = amdgpu_reset_dump_register_list_write,
+	.llseek = default_llseek
+};
+
 int amdgpu_debugfs_init(struct amdgpu_device *adev)
 {
 	struct dentry *root = adev_to_drm(adev)->primary->debugfs_root;
@@ -1685,6 +1786,10 @@ int amdgpu_debugfs_init(struct amdgpu_device *adev)
 			    &amdgpu_debugfs_test_ib_fops);
 	debugfs_create_file("amdgpu_vm_info", 0444, root, adev,
 			    &amdgpu_debugfs_vm_info_fops);
+	debugfs_create_file("amdgpu_benchmark", 0200, root, adev,
+			    &amdgpu_benchmark_fops);
+	debugfs_create_file("amdgpu_reset_dump_register_list", 0644, root, adev,
+			    &amdgpu_reset_dump_register_list);
 
 	adev->debugfs_vbios_blob.data = adev->bios;
 	adev->debugfs_vbios_blob.size = adev->bios_size;