On Fri, Sep 5, 2025 at 6:54 AM Borislav Petkov wrote:
>
> On Tue, Sep 02, 2025 at 12:53:32PM -0400, Alex Deucher wrote:
> > Older GPUs did not support memory protection, so the kernel
> > driver would validate the command submissions (CS) from userspace
> > to avoid the GPU accessing any memory it
When the ACPI core uses hibernation callbacks for shutdown drivers
will receive PM_EVENT_POWEROFF and should handle it the same as
PM_EVENT_HIBERNATE would have been used.
Tested-by: Eric Naim
Signed-off-by: Mario Limonciello (AMD)
---
drivers/usb/host/sl811-hcd.c | 1 +
1 file changed, 1 inser
On Tue, Sep 02, 2025 at 12:53:32PM -0400, Alex Deucher wrote:
> Older GPUs did not support memory protection, so the kernel
> driver would validate the command submissions (CS) from userspace
> to avoid the GPU accessing any memory it shouldn't.
>
> Change any error messages in that validatio to d
Use the suspend and resume API rather than remove queue
and add queue API. The former just preempts the queue
while the latter remove it from the scheduler completely.
There is no need to do that, we only need preemption
in this case.
V2: replace queue_active with queue state
v3: set the suspend_
For the suspend flow PCIe bridges that have downstream devices are put into
the appropriate low power state (D3hot or D3cold depending upon specific
devices). For the hibernate flow, PCIe bridges with downstream devices
stay in D0 however. This can lead to PCIe bridges that are remained
powered on
When the system is powered off the kernel will call device_shutdown()
which will issue callbacks into PCI core to wake up a device and call
it's shutdown() callback. This will leave devices in ACPI D0 which can
cause some devices to misbehave with spurious wakeups and also leave some
devices on wh
If powering off the system with the S4 flow USB wakeup sources should
be ignored. Add a new callback hcd_pci_poweroff() which will differentiate
whether target state is S5 and pass PMSG_POWEROFF as the message so that
suspend_common() will avoid doing wakeups.
Signed-off-by: Mario Limonciello (AMD
Suspend resume actions will check the state of the device and whether
bus PM should be skipped. These same actions make sense during hibernation
image restore. Apply them there as well.
Tested-by: Eric Naim
Signed-off-by: Mario Limonciello (AMD)
---
drivers/pci/pci-driver.c | 5 +
1 file
PMSG_POWEROFF will be used for the PM core to allow differentiating between
an S4 or S5 shutdown sequence when re-using callbacks.
This event should not have wakeups enabled so update PMSG_NO_WAKEUP() to
match it as well.
Tested-by: Eric Naim
Signed-off-by: Mario Limonciello (AMD)
---
drivers/
When the ACPI core uses hibernation callbacks for shutdown drivers
will receive PM_EVENT_POWEROFF and should handle it the same as
PM_EVENT_HIBERNATE would have been used.
Tested-by: Eric Naim
Signed-off-by: Mario Limonciello (AMD)
---
drivers/scsi/mesh.c | 1 +
drivers/scsi/stex.c | 1 +
2 fil
A variety of issues both in function and in power consumption have been
raised as a result of devices not being put into a low power state when
the system is powered off.
There have been some localized changes[1] to PCI core to help these issues,
but they have had various downsides.
This series i
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