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Fri, 9 May 2025 15:52:25 +0000 Date: Fri, 9 May 2025 11:52:19 -0400 From: Rodrigo Vivi To: "Rafael J. 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Wysocki wrote: > From: Rafael J. Wysocki > > Introduce pm_suspend_in_progress() to be used for checking if a system- > wide suspend or resume transition is in progress, instead of comparing > pm_suspend_target_state directly to PM_SUSPEND_ON, and use it where > applicable. > > No intentional functional impact. > > Signed-off-by: Rafael J. Wysocki Reviewed-by: Rodrigo Vivi > --- > > The only change in this patch that depends in the [1/3] is in > kernel/power/main.c and it is not relevant for PCI/x86 and xe. > > --- > arch/x86/pci/fixup.c | 4 ++-- > drivers/base/power/wakeup.c | 2 +- > drivers/gpu/drm/xe/xe_pm.c | 2 +- Acked-by: Rodrigo Vivi to merge this through your trees > include/linux/suspend.h | 5 +++++ > kernel/power/main.c | 4 ++-- > 5 files changed, 11 insertions(+), 6 deletions(-) > > --- a/arch/x86/pci/fixup.c > +++ b/arch/x86/pci/fixup.c > @@ -970,13 +970,13 @@ > struct pci_dev *rp; > > /* > - * PM_SUSPEND_ON means we're doing runtime suspend, which means > + * If system suspend is not in progress, we're doing runtime suspend, so > * amd-pmc will not be involved so PMEs during D3 work as advertised. > * > * The PMEs *do* work if amd-pmc doesn't put the SoC in the hardware > * sleep state, but we assume amd-pmc is always present. > */ > - if (pm_suspend_target_state == PM_SUSPEND_ON) > + if (!pm_suspend_in_progress()) > return; > > rp = pcie_find_root_port(dev); > --- a/drivers/base/power/wakeup.c > +++ b/drivers/base/power/wakeup.c > @@ -337,7 +337,7 @@ > if (!dev || !dev->power.can_wakeup) > return -EINVAL; > > - if (pm_suspend_target_state != PM_SUSPEND_ON) > + if (pm_suspend_in_progress()) > dev_dbg(dev, "Suspicious %s() during system transition!\n", __func__); > > ws = wakeup_source_register(dev, dev_name(dev)); > --- a/drivers/gpu/drm/xe/xe_pm.c > +++ b/drivers/gpu/drm/xe/xe_pm.c > @@ -641,7 +641,7 @@ > > return dev->power.runtime_status == RPM_SUSPENDING || > dev->power.runtime_status == RPM_RESUMING || > - pm_suspend_target_state != PM_SUSPEND_ON; > + pm_suspend_in_progress(); > #else > return false; > #endif > --- a/include/linux/suspend.h > +++ b/include/linux/suspend.h > @@ -298,6 +298,11 @@ > static inline void s2idle_wake(void) {} > #endif /* !CONFIG_SUSPEND */ > > +static inline bool pm_suspend_in_progress(void) > +{ > + return pm_suspend_target_state != PM_SUSPEND_ON; > +} > + > /* struct pbe is used for creating lists of pages that should be restored > * atomically during the resume from disk, because the page frames they have > * occupied before the suspend are in use. > --- a/kernel/power/main.c > +++ b/kernel/power/main.c > @@ -613,8 +613,8 @@ > > bool pm_debug_messages_should_print(void) > { > - return pm_debug_messages_on && (hibernation_in_progress() || > - pm_suspend_target_state != PM_SUSPEND_ON); > + return pm_debug_messages_on && (pm_suspend_in_progress() || > + hibernation_in_progress()); > } > EXPORT_SYMBOL_GPL(pm_debug_messages_should_print); > > > >