On Tue Nov 25, 2025 at 8:55 AM JST, John Hubbard wrote:
> On 11/24/25 3:47 PM, Timur Tabi wrote:
>> On Wed, 2025-11-19 at 15:10 -0500, Joel Fernandes wrote:
>>> sec2_falcon.reset(bar)?;
>>> - if chipset > Chipset::GA100 {
>>> + if booter_loader.flags() == BooterFlags::Secure {
>>> sec2_falcon.dma_load(bar, &booter_loader)?;
>>> } else {
>>> sec2_falcon.pio_load(bar, &booter_loader, None)?;
>>
>> The problem with this is that it conflates (Non-)Secure IMEM with using
>> PIO/DMA. I haven't looked
>> at GA100 yet, but it's just coincidence that platforms that have Non-Secure
>> IMEM sections also don't
>> have (functioning) DMA hardware.
>>
>
> Hopper/Blackwell+ use PIO too. So the conflating could be a real
> concern.
Ok, so we really want to have this handled by the falcon HAL as Timur
suggested.
