Displaying 9 results from an estimated 9 matches for "piof".
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2019 Nov 20
1
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...{
OSYS = 0x07DD
}
If (_OSI ("Windows 2015"))
{
OSYS = 0x07DF
}
So I guess this particular check tries to identify Windows 7 and older,
and Linux.
> If ((PIOF == Zero))
> {
> P0LD = One
> TCNT = Zero
> While ((TCNT < LDLY))
> {
> If ((P0LT == 0x08))
> {
> Bre...
2019 Nov 20
4
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...nd some problematic behavior in Linux at one point?
Yes, it looks like so if I read the ASL right. The whole method looks
like below (the full acpidump was shared by Karol in v3 thread) and
there is similar check in the _ON (PGON) method:
Method (PGOF, 1, Serialized)
{
PIOF = Arg0
If ((PIOF == Zero))
{
If ((SGGP == Zero))
{
Return (Zero)
}
}
ElseIf ((PIOF == One))
{
If ((P1GP == Zero))
{
Ret...
2019 Nov 22
1
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...+ does not disable the link
but instead it puts it to low power L2 or L3 state (I suppose L3 since
it removes the power and the GPU probably does not support wake).
The ASL code is below. PGOF() gets called from the power resource
_OFF():
Method (PGOF, 1, Serialized)
{
PIOF = Arg0
If ((PIOF == Zero))
{
If ((SGGP == Zero))
{
Return (Zero)
}
}
ElseIf ((PIOF == One))
{
If ((P1GP == Zero))
{
Ret...
2019 Nov 22
0
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...configuration in which
the AML runs also is different in these two cases.
> The ASL code is below. PGOF() gets called from the power resource
> _OFF():
I'll look at it in detail when I have some more time later.
> Method (PGOF, 1, Serialized)
> {
> PIOF = Arg0
> If ((PIOF == Zero))
> {
> If ((SGGP == Zero))
> {
> Return (Zero)
> }
> }
> ElseIf ((PIOF == One))
> {
> If ((P1GP =...
2019 Nov 20
0
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...}
>
> If (_OSI ("Windows 2015"))
> {
> OSYS = 0x07DF
> }
>
> So I guess this particular check tries to identify Windows 7 and older,
> and Linux.
>
> > If ((PIOF == Zero))
> > {
> > P0LD = One
> > TCNT = Zero
> > While ((TCNT < LDLY))
> > {
> > If ((P0LT == 0x08))
> > {
&...
2019 Nov 20
2
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...If (_OSI ("Windows 2015"))
> > {
> > OSYS = 0x07DF
> > }
> >
> > So I guess this particular check tries to identify Windows 7 and older,
> > and Linux.
> >
> > > If ((PIOF == Zero))
> > > {
> > > P0LD = One
> > > TCNT = Zero
> > > While ((TCNT < LDLY))
> > > {
> > > If ((P0LT == 0x08))
> &g...
2019 Nov 20
1
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
Hi Karol,
On Tue, Nov 19, 2019 at 11:26:45PM +0100, Karol Herbst wrote:
> On Tue, Nov 19, 2019 at 10:50 PM Bjorn Helgaas <helgaas at kernel.org> wrote:
> >
> > [+cc Dave]
> >
> > On Thu, Oct 17, 2019 at 02:19:01PM +0200, Karol Herbst wrote:
> > > Fixes state transitions of Nvidia Pascal GPUs from D3cold into higher device
> > > states.
> >
2019 Nov 22
3
[PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
On Thu, Nov 21, 2019 at 11:39:23PM +0100, Rafael J. Wysocki wrote:
> On Thu, Nov 21, 2019 at 8:49 PM Mika Westerberg
> <mika.westerberg at intel.com> wrote:
> >
> > On Thu, Nov 21, 2019 at 04:43:24PM +0100, Rafael J. Wysocki wrote:
> > > On Thu, Nov 21, 2019 at 1:52 PM Mika Westerberg
> > > <mika.westerberg at intel.com> wrote:
> > > >
2017 Jan 12
4
[Bug 99385] New: Nouveau produces soft lockups
https://bugs.freedesktop.org/show_bug.cgi?id=99385
Bug ID: 99385
Summary: Nouveau produces soft lockups
Product: xorg
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
Assignee: nouveau at lists.freedesktop.org