Hi Mathias,
Thanks for your time.
On 02/16/2016 10:19 PM, Mathias Nyman wrote:
> Hi
>
> Most of my concerns are due to the early printk restrictions.
> As you say in the documentation:
> "Keep in mind that things such as interrupt, system memory, DMA memory,
> PCI configure space access, etc.,
Hi
Most of my concerns are due to the early printk restrictions.
As you say in the documentation:
"Keep in mind that things such as interrupt, system memory, DMA memory,
PCI configure space access, etc., are all different from a normal device
driver."
I don't know the details of these
xHCI debug capability (DbC) is an optional functionality provided
by an xHCI host controller. Software learns this capability by
walking through the extended capability list in mmio of the host.
This patch introduces the code to probe and initialize the debug
capability hardware during early
