On 15.06.22 10:30, Philippe Gerum wrote:
>
> Jan Kiszka writes:
>
>> On 15.06.22 09:54, Philippe Gerum wrote:
>>>
>>> Jan Kiszka via Xenomai writes:
>>>
On 23.05.22 16:04, Gunter Grau via Xenomai wrote:
> From: Gunter Grau
>
> When mapping io memory into userspace an extra
Jan Kiszka writes:
> On 15.06.22 09:54, Philippe Gerum wrote:
>>
>> Jan Kiszka via Xenomai writes:
>>
>>> On 23.05.22 16:04, Gunter Grau via Xenomai wrote:
From: Gunter Grau
When mapping io memory into userspace an extra simulated pagefault for all
pages is added to
022 10:12
> To: Philippe Gerum ; Grau, Gunter
>
> Cc: xenomai@xenomai.org
> Subject: Re: [PATCH] rtdm/drvlib: Prevent pagefaults on arm on io mapping
>
> Caution: This e-mail originated from outside of Philips, be careful for
> phishing.
>
>
> On 15.06.22 09:54, Phili
On 15.06.22 09:54, Philippe Gerum wrote:
>
> Jan Kiszka via Xenomai writes:
>
>> On 23.05.22 16:04, Gunter Grau via Xenomai wrote:
>>> From: Gunter Grau
>>>
>>> When mapping io memory into userspace an extra simulated pagefault for all
>>> pages is added to prevent later pagefaults because of
Jan Kiszka via Xenomai writes:
> On 23.05.22 16:04, Gunter Grau via Xenomai wrote:
>> From: Gunter Grau
>>
>> When mapping io memory into userspace an extra simulated pagefault for all
>> pages is added to prevent later pagefaults because of copy on write
>> mechanisms. This happens only on
On 23.05.22 16:04, Gunter Grau via Xenomai wrote:
> From: Gunter Grau
>
> When mapping io memory into userspace an extra simulated pagefault for all
> pages is added to prevent later pagefaults because of copy on write
> mechanisms. This happens only on architectures that have defined the
>
From: Gunter Grau
When mapping io memory into userspace an extra simulated pagefault for all
pages is added to prevent later pagefaults because of copy on write
mechanisms. This happens only on architectures that have defined the
needed cobalt_machine.prefault function.
Signed-off-by: Gunter
