Merge tag 'drm-misc-next-2025-07-10' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for 6.17:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:

Driver Changes:
- amdgpu: debugfs improvements
- ast: Improve hardware generations implementation
- dma-buf heaps:
  - Give the CMA heap a stable name
- panthor: fix UAF in debugfs
- rockchip: Convert inno_hdmi to a bridge
- sti: Convert to devm_drm_bridge_alloc()
- vkms: Use faux_device

- bridge:
  - Improve CEC handling code, convertions to devm_drm_bridge_alloc()

Signed-off-by: Simona Vetter <[email protected]>
From: Maxime Ripard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/20250710-observant-elite-dingo-acfd6d@houat

1 files changed, 52 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index 83f211903425..0e6e2e2acf5b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -2131,6 +2131,55 @@ int amdgpu_debugfs_init(struct amdgpu_device *adev)
 	return 0;
 }
 
+static int amdgpu_pt_info_read(struct seq_file *m, void *unused)
+{
+	struct drm_file *file;
+	struct amdgpu_fpriv *fpriv;
+	struct amdgpu_bo *root_bo;
+	int r;
+
+	file = m->private;
+	if (!file)
+		return -EINVAL;
+
+	fpriv = file->driver_priv;
+	if (!fpriv || !fpriv->vm.root.bo)
+		return -ENODEV;
+
+	root_bo = amdgpu_bo_ref(fpriv->vm.root.bo);
+	r = amdgpu_bo_reserve(root_bo, true);
+	if (r) {
+		amdgpu_bo_unref(&root_bo);
+		return -EINVAL;
+	}
+
+	seq_printf(m, "gpu_address: 0x%llx\n", amdgpu_bo_gpu_offset(fpriv->vm.root.bo));
+
+	amdgpu_bo_unreserve(root_bo);
+	amdgpu_bo_unref(&root_bo);
+
+	return 0;
+}
+
+static int amdgpu_pt_info_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, amdgpu_pt_info_read, inode->i_private);
+}
+
+static const struct file_operations amdgpu_pt_info_fops = {
+	.owner = THIS_MODULE,
+	.open = amdgpu_pt_info_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+void amdgpu_debugfs_vm_init(struct drm_file *file)
+{
+	debugfs_create_file("vm_pagetable_info", 0444, file->debugfs_client, file,
+			    &amdgpu_pt_info_fops);
+}
+
 #else
 int amdgpu_debugfs_init(struct amdgpu_device *adev)
 {
@@ -2140,4 +2189,7 @@ int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)
 {
 	return 0;
 }
+void amdgpu_debugfs_vm_init(struct drm_file *file)
+{
+}
 #endif