Directx12 texture layout support

Hi,

I tried to use different texture layouts when creating a committed resource, but most did not work:

D3D12_TEXTURE_LAYOUT_UNKNOWN
D3D12_TEXTURE_LAYOUT_ROW_MAJOR
D3D12_TEXTURE_LAYOUT_64KB_STANDARD_SWIZZLE

Only D3D12_TEXTURE_LAYOUT_64KB_UNDEFINED_SWIZZLE return without an error.

I am using a GTX970, Win 10 64-bit, latest driver.
Please let me know if I am doing something wrong or if it is not supported yet.

Best,
Chi

Does anyone know something about this?