Messages in this thread | | | Date | Tue, 21 Jan 2003 12:03:58 +0100 | From | Pavel Machek <> | Subject | Re: Ask devices to powerdown before S3 sleep |
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Hi!
> > > > SUSPEND_RESUME phase is needed for turning off IO-APIC. [I believe > > > > SUSPEND_DISABLE should be so simple that errors just should not be > > > > there, and besides we would not know how to safely enable devices from > > > > such weird state, anyway]. Please apply, > > > > > > panic() is a bit on the extreme side no? I know diddly about ACPI and > > > the current code, but can't you check for _PS3 methods or _S3D mappings > > > for your devices before hand to be certain that the system can even go > > > down to S3 somewhat reliably? > > > > At this point, you already DISABLED half of devices, and you don't > > even know *which* ones. You can't just send them ENABLE and hope it > > works. > > I meant checking before you even attempt starting the process of doing S3.
All devices should support that -- BIOS should not advertise S3 if it can not do that, and kernel should be fixed to work.
Pavel -- Casualities in World Trade Center: ~3k dead inside the building, cryptography in U.S.A. and free speech in Czech Republic. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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