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Some GPUs do not support using DMA to transfer code/data from system memory to Falcon memory, and instead must use programmed I/O (PIO). Add a function to the Falcon HAL to indicate whether a given GPU's Falcons support DMA for this purpose. Signed-off-by: Timur Tabi <ttabi@nvidia.com> Reviewed-by: Gary Guo <gary@garyguo.net> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://patch.msgid.link/20260122222848.2555890-10-ttabi@nvidia.com [acourbot@nvidia.com: add short code to call into the HAL.] [acourbot@nvidia.com: make `dma_load` private as per feedback.] Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>