[PATCH 1/2] drm/amdgpu: add more information in debugfs to pagetable dump
Christian König
christian.koenig at amd.com
Thu Aug 14 12:19:04 UTC 2025
On 14.08.25 10:12, Sunil Khatri wrote:
> Add more information in the debugfs which is needed to dump
> a pagetable correctly for userqueues where vmid is not known
> in the kernel.
>
> Signed-off-by: Sunil Khatri <sunil.khatri at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com> for both patches.
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
> index 63cd790b1d7b..6d52832fa9b6 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
> @@ -2136,12 +2136,14 @@ 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;
> + struct amdgpu_device *adev;
> int r;
>
> file = m->private;
> if (!file)
> return -EINVAL;
>
> + adev = drm_to_adev(file->minor->dev);
> fpriv = file->driver_priv;
> if (!fpriv || !fpriv->vm.root.bo)
> return -ENODEV;
> @@ -2154,6 +2156,10 @@ static int amdgpu_pt_info_read(struct seq_file *m, void *unused)
> }
>
> seq_printf(m, "gpu_address: 0x%llx\n", amdgpu_bo_gpu_offset(fpriv->vm.root.bo));
> + seq_printf(m, "max_pfn: 0x%llx\n", adev->vm_manager.max_pfn);
> + seq_printf(m, "num_level: 0x%x\n", adev->vm_manager.num_level);
> + seq_printf(m, "block_size: 0x%x\n", adev->vm_manager.block_size);
> + seq_printf(m, "fragment_size: 0x%x\n", adev->vm_manager.fragment_size);
>
> amdgpu_bo_unreserve(root_bo);
> amdgpu_bo_unref(&root_bo);
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