Displaying 7 results from an estimated 7 matches for "platform_pci_set_power_st".
2011 Feb 28
12
[RFC PATCH] set current_state to D0 in register_slot
...pci_enable_device_flags
/* here we do not set current_state because !pm_cap */
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do_pci_enable_device
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pci_set_power_state
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__pci_start_power_transition
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pci_platform_power_transition
/* platform_pci_power_manageable() calls acpi_pci_power_manageable that
* returns true */
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platform_pci_set_power_state
/* acpi_pci_set_power_state gets called and does nothing because the
* acpi device has _EJ0, see the comment "If the ACPI device has _EJ0,
* ignore the device" */
at this point if we refer to the commit message that introduced the
comment above (10b3dcae0f275e2546e55303d64ddbb58cec...
2019 Oct 16
3
[PATCH v3] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...return 0 <-- nothing at all if quirked
> pci_raw_set_power_state
> pci_write_config_word(PCI_PM_CTRL, D3hot) <-- set to D3hot
> __pci_complete_power_transition(D3cold)
> pci_platform_power_transition(D3cold)
> platform_pci_set_power_state(D3cold)
> acpi_pci_set_power_state(D3cold)
> acpi_device_set_power(ACPI_STATE_D3_COLD)
> ...
> acpi_evaluate_object("_OFF") <-- set to D3cold
>
> I did not understand the connection with platform (ACPI) power...
2019 Oct 21
0
[PATCH v3] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...lt;-- nothing at all if quirked
> > > pci_raw_set_power_state
> > > pci_write_config_word(PCI_PM_CTRL, D3hot) <-- set to D3hot
> > > __pci_complete_power_transition(D3cold)
> > > pci_platform_power_transition(D3cold)
> > > platform_pci_set_power_state(D3cold)
> > > acpi_pci_set_power_state(D3cold)
> > > acpi_device_set_power(ACPI_STATE_D3_COLD)
> > > ...
> > > acpi_evaluate_object("_OFF") <-- set to D3cold
> > >
> > > I d...
2019 Oct 21
1
[PATCH v3] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...<-- nothing at all if quirked
> > pci_raw_set_power_state
> > pci_write_config_word(PCI_PM_CTRL, D3hot) <-- set to D3hot
> > __pci_complete_power_transition(D3cold)
> > pci_platform_power_transition(D3cold)
> > platform_pci_set_power_state(D3cold)
> > acpi_pci_set_power_state(D3cold)
> > acpi_device_set_power(ACPI_STATE_D3_COLD)
> > ...
> > acpi_evaluate_object("_OFF") <-- set to D3cold
> >
> > I did not understand the connecti...
2019 Oct 16
2
[PATCH v3] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
but setting the PCI_DEV_FLAGS_NO_D3 flag does prevent using the
platform means of putting the device into D3cold, right? That's
actually what should still happen, just the D3hot step should be
skipped.
On Wed, Oct 16, 2019 at 9:14 PM Bjorn Helgaas <helgaas at kernel.org> wrote:
>
> On Wed, Oct 16, 2019 at 04:44:49PM +0200, Karol Herbst wrote:
> > Fixes state transitions of
2019 Oct 16
0
[PATCH v3] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...if (PCI_DEV_FLAGS_NO_D3)
return 0 <-- nothing at all if quirked
pci_raw_set_power_state
pci_write_config_word(PCI_PM_CTRL, D3hot) <-- set to D3hot
__pci_complete_power_transition(D3cold)
pci_platform_power_transition(D3cold)
platform_pci_set_power_state(D3cold)
acpi_pci_set_power_state(D3cold)
acpi_device_set_power(ACPI_STATE_D3_COLD)
...
acpi_evaluate_object("_OFF") <-- set to D3cold
I did not understand the connection with platform (ACPI) power
management from your patch....
2011 Dec 02
6
[PATCH] tools/firmware: remove "_PS0/3" Method
tools/firmware: remove "_PS0/3" Method
Do not expose the ACPI power management "_PS0/3" Method to guest firmware. According to section 3.4 of the APCI specification 4.0, PCI device control the device power through its own specification but not through APCI.
Qemu pushes "_PS0/3" to guest will cause a mess between ACPI PM and PCI PM as a result of incorrect ACPI table