> From: David Gwynne
> Date: Tue, 16 Feb 2021 12:58:35 +1000
>
> > On 16 Feb 2021, at 06:01, Mark Kettenis wrote:
> >
> >> Date: Mon, 15 Feb 2021 01:19:29 +0100
> >> From: Patrick Wildt
> >>
> >> Am Mon, Feb 15, 2021 at 09:55:56AM +1000 schrieb David Gwynne:
> >>>
> >>>
> On 15 Feb
> On 16 Feb 2021, at 06:01, Mark Kettenis wrote:
>
>> Date: Mon, 15 Feb 2021 01:19:29 +0100
>> From: Patrick Wildt
>>
>> Am Mon, Feb 15, 2021 at 09:55:56AM +1000 schrieb David Gwynne:
>>>
>>>
On 15 Feb 2021, at 07:54, Mark Kettenis wrote:
One of the aspects of device
> Date: Mon, 15 Feb 2021 01:19:29 +0100
> From: Patrick Wildt
>
> Am Mon, Feb 15, 2021 at 09:55:56AM +1000 schrieb David Gwynne:
> >
> >
> > > On 15 Feb 2021, at 07:54, Mark Kettenis wrote:
> > >
> > > One of the aspects of device access is whether CPU writes to a device
> > > are posted or
Am Mon, Feb 15, 2021 at 09:55:56AM +1000 schrieb David Gwynne:
>
>
> > On 15 Feb 2021, at 07:54, Mark Kettenis wrote:
> >
> > One of the aspects of device access is whether CPU writes to a device
> > are posted or non-posted. For non-posted writes, the CPU will wait
> > for the device to
> On 15 Feb 2021, at 07:54, Mark Kettenis wrote:
>
> One of the aspects of device access is whether CPU writes to a device
> are posted or non-posted. For non-posted writes, the CPU will wait
> for the device to acknowledge that the write has performed. If the
> device sits on a bus far
One of the aspects of device access is whether CPU writes to a device
are posted or non-posted. For non-posted writes, the CPU will wait
for the device to acknowledge that the write has performed. If the
device sits on a bus far away, this can take a while and slow things
down. The alternative
