On Wed, Oct 08, 2025 at 12:08:59AM +0200, Danilo Krummrich wrote:
> Regarding the bitfields for page table management: Are we
> sure that we can use raw bitfields for this?
As per my current understanding we can't. Bitfields are not suitable for
direct I/O and considered as a data storage. In the current scheme:
regs::NV_PFALCON_FALCON_DMATRFBASE::default()
.set_base((dma_start >> 8) as u32)
.write(bar, &E::ID);
we account for endianess in the .write() method, which would be a part
of register API, not bitfields.
FYI: ARM64 is in process of dropping BE, and Linus announced the end
of BE support for RISC-V:
https://lore.kernel.org/all/CAHk-=wgycoifvsjzfb+hfb4n6wj6zm5h5eghumfpxsczyqv...@mail.gmail.com/
Thanks,
Yury
