On Wednesday, 7 of May 2008, Rafael J. Wysocki wrote:
> On Wednesday, 7 of May 2008, Pavel Machek wrote:
> > Hi!
> > > ---
> > > Documentation/kernel-parameters.txt | 5
> > > drivers/acpi/sleep/main.c | 301 +++++++++++++++++++++---------------
> > > drivers/base/power/main.c | 15 +
> > > include/linux/pm.h | 2
> > > 4 files changed, 201 insertions(+), 122 deletions(-)
> > >
> > > Index: linux-2.6/Documentation/kernel-parameters.txt
> > > ===================================================================
> > > --- linux-2.6.orig/Documentation/kernel-parameters.txt
> > > +++ linux-2.6/Documentation/kernel-parameters.txt
> > > @@ -170,6 +170,11 @@ and is between 256 and 4096 characters.
> > > acpi_irq_isa= [HW,ACPI] If irq_balance, mark listed IRQs used by ISA
> > > Format: <irq>,<irq>...
> > >
> > > + acpi_old_suspend_ordering [HW,ACPI]
> > > + Enforce the ACPI 1.0 ordering of the _PTS control
> > > + method wrt putting devices into low power states
> > > + default: ACPI 2.0 ordering of _PTS
> > > +
> >
> > Space vs. tabs issue here, not too important...
> >
> > > +#ifdef CONFIG_PM_SLEEP
> > > +static u32 acpi_target_sleep_state = ACPI_STATE_S0;
> > > +
> > > +static int init_8259A_after_S1;
> >
> > 8259A after S1 init is workaround for bug in toshiba 4030cdt. We can
> > probably remove it now.
> >
> > > +#ifdef CONFIG_X86
> > > + if (acpi_state == ACPI_STATE_S1 && init_8259A_after_S1) {
> > > + printk("Broken toshiba laptop -> kicking interrupts\n");
> > > + init_8259A(0);
> > > + }
> > > +#endif
> >
> > This can die. I believe I've removed it already, but apparently not.
>
> Yes, but I'm going to add some analogous code for machines that are known to
> need the "old" suspend ordering, so I've left that as a template. ;-)
Okay, I guess we the $subject patch can be replaced with the two following
ones.
The first of them removes the Toshiba hook.
The second one adds a suspend sequence workaround by midifying the high-level
code and introducing new "recover" callbacks for the platform.
Then have only been compilation tested.
Please have a look.
Thanks,
Rafael
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