RE: [ACPI] [BKPATCH] ACPI for 2.6

From: Manpreet Singh
Date: Mon Mar 29 2004 - 20:43:50 EST

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Hi,

What is the current mechanism for enabling wake events? Or are there are a
set of defaults defined somewhere?

Thanks,
Manpreet.

-----Original Message-----
From: Li, Shaohua [mailto:shaohua.li@xxxxxxxxx]
Sent: Monday, March 29, 2004 5:23 PM
To: Manpreet Singh; Moore, Robert; Brown, Len; Linus Torvalds
Cc: Kernel Mailing List; ACPI Developers
Subject: RE: [ACPI] [BKPATCH] ACPI for 2.6

Hi,
I think ACPI should provide user interface to enable 'Wake' GPE before
entering sleep. User can select which devices can wake up system. We
have a track http://bugme.osdl.org/show_bug.cgi?id=1415 for this issue.

Thanks,
David
> -----Original Message-----
> From: acpi-devel-admin@xxxxxxxxxxxxxxxxxxxxx [mailto:acpi-devel-
> admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Manpreet Singh
> Sent: Tuesday, March 30, 2004 8:28 AM
> To: Moore, Robert; Brown, Len; Linus Torvalds
> Cc: Kernel Mailing List; ACPI Developers
> Subject: RE: [ACPI] [BKPATCH] ACPI for 2.6
>
> Hi Bob,
>
> What I mean is that I see that the system goes into S3 suspend with
all
> GPEs
> being disabled. So the bitvector 'WakeEnable' has a value of 0. Now,
on my
> I/O controller, PME_EN: which enables PME#s to assert a wake-up event
is
> also
> off which is what I'd like to see enabled for wake on LAN (etherwake)
to
> work.
>
> How is WakeEnable initialized? Does it depend on certain BIOS table
> entries?
>
> Forgive my n00b questions if they sound trivial.
>
> Thanks,
> Manpreet.
>
>
> -----Original Message-----
> From: Moore, Robert [mailto:robert.moore@xxxxxxxxx]
> Sent: Monday, March 29, 2004 9:33 AM
> To: Manpreet Singh; Brown, Len; Linus Torvalds
> Cc: Kernel Mailing List; ACPI Developers
> Subject: RE: [ACPI] [BKPATCH] ACPI for 2.6
>
>
>
> What makes you think that *all* GPEs are disabled?
>
> Here is the relevant code:
>
> /*
> * 1) Disable all runtime GPEs
> * 2) Enable all wakeup GPEs
> */
> Status = AcpiHwLowLevelWrite (8, GpeRegisterInfo->WakeEnable,
> &GpeRegisterInfo->EnableAddress);
>
> The "WakeEnable" field is setup such that only the WAKE GPEs are
> enabled.
>
> Unless you are saying that "WakeEnable" is not initialized correctly.
>
> Please clarify.
>
> Bob
>
>
> -----Original Message-----
> From: acpi-devel-admin@xxxxxxxxxxxxxxxxxxxxx
> [mailto:acpi-devel-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Manpreet
> Singh
> Sent: Saturday, March 27, 2004 1:19 AM
> To: Brown, Len; Linus Torvalds
> Cc: Kernel Mailing List; ACPI Developers
> Subject: RE: [ACPI] [BKPATCH] ACPI for 2.6
>
> Hi Len,
>
> This patch on 2.6.5-rc2 certainly helps with a "spurious" interrupt
> problem
> that I was seeing on a 2.6.4 kernel. It seems that we don't initialize
> GPEs
> unless they are needed for a resume.
>
> But, in the function call "acpi_hw_prepare_gpes_for_sleep", it seems
> that
> currently *all* GPEs get disabled, some of which I would consider wake
> up
> events, like the PME enable bit that enables an S3 resume using a
magic
> packet. That doesn't allow wake on LAN to work properly. Is there way
to
> pick/specify the wake up events or does it come from the BIOS tables?
>
> Also, if I have the console on a serial port, I don't get the console
> back
> after an S3 resume.
>
> Actually, I am new to the ACPI list. If this is not the right place
for
> these
> queries, please let me know.
>
> Thanks,
> Manpreet.
>
>
> -----Original Message-----
> From: acpi-devel-admin@xxxxxxxxxxxxxxxxxxxxx
> [mailto:acpi-devel-admin@xxxxxxxxxxxxxxxxxxxxx]On Behalf Of Len Brown
> Sent: Friday, March 26, 2004 4:59 PM
> To: Linus Torvalds
> Cc: Kernel Mailing List; ACPI Developers
> Subject: [ACPI] [BKPATCH] ACPI for 2.6
>
>
> Hi Linus, please do a
>
> bk pull bk://linux-acpi.bkbits.net/linux-acpi-release-2.6.5
>
> Three significant interrupt fixes.
>
> thanks,
> -Len
>
> ps. a plain patch is also available here:
>
ftp://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/patches/release/2
> .6.5/
> acpi-20040326-2.6.5.diff.gz
>
> This will update the following files:
>
> arch/i386/kernel/acpi/boot.c | 18 +
> drivers/acpi/ec.c | 4
> drivers/acpi/events/evgpe.c | 11 -
> drivers/acpi/events/evgpeblk.c | 242 ++++++++++++++++++++++----
> drivers/acpi/events/evmisc.c | 43 ++--
> drivers/acpi/events/evxfevnt.c | 25 ++
> drivers/acpi/executer/excreate.c | 16 +
> drivers/acpi/executer/exdump.c | 1
> drivers/acpi/executer/exresnte.c | 5
> drivers/acpi/executer/exstoren.c | 1
> drivers/acpi/hardware/hwgpe.c | 98 ++++++----
> drivers/acpi/hardware/hwsleep.c | 22 +-
> drivers/acpi/namespace/nsaccess.c | 9
> drivers/acpi/namespace/nsdump.c | 1
> drivers/acpi/namespace/nseval.c | 9
> drivers/acpi/namespace/nssearch.c | 6
> drivers/acpi/namespace/nsutils.c | 2
> drivers/acpi/namespace/nsxfeval.c | 26 +-
> drivers/acpi/osl.c | 21 ++
> drivers/acpi/pci_link.c | 18 +
> drivers/acpi/resources/rsaddr.c | 13 -
> drivers/acpi/utilities/utglobal.c | 42 ++--
> drivers/acpi/utilities/utmisc.c | 5
> include/acpi/acconfig.h | 2
> include/acpi/acglobal.h | 2
> include/acpi/achware.h | 4
> include/acpi/aclocal.h | 7
> include/acpi/actypes.h | 84 +++++----
> include/acpi/acutils.h | 1
> 29 files changed, 537 insertions(+), 201 deletions(-)
>
> through these ChangeSets:
>
> <len.brown@xxxxxxxxx> (04/03/26 1.1608.1.56)
> [ACPI] Linux specific updates from ACPICA 20040326
> "acpi_wake_gpes_always_on" boot flag for old GPE behaviour
>
> <len.brown@xxxxxxxxx> (04/03/26 1.1608.1.55)
> [ACPI] ACPICA 20040326 from Bob Moore
>
> Implemented support for "wake" GPEs via interaction between
> GPEs and the _PRW methods. Every GPE that is pointed to by
> one or more _PRWs is identified as a WAKE GPE and by default
> will no longer be enabled at runtime. Previously, we were
> blindly enabling all GPEs with a corresponding _Lxx or _Exx
> method - but most of these turn out to be WAKE GPEs anyway.
> We believe this has been the cause of thousands of
> "spurious" GPEs on some systems.
>
> This new GPE behavior is can be reverted to the original
> behavior (enable ALL GPEs at runtime) via a runtime flag.
>
> Fixed a problem where aliased control methods could not
> access objects properly. The proper scope within the
> namespace was not initialized (transferred to the target of
> the aliased method) before executing the target method.
>
> Fixed a potential race condition on internal object
> deletion on the return object in AcpiEvaluateObject.
>
> Integrated a fix for resource descriptors where both
> _MEM and _MTP were being extracted instead of just _MEM.
> (i.e. bitmask was incorrectly too wide, 0x0F instead of 0x03.)
>
> Added a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName,
> preventing a fault in some cases.
>
> Updated Notify() values for debug statements in evmisc.c
>
> Return proper status from AcpiUtMutexInitialize,
> not just simply AE_OK.
>
> <len.brown@xxxxxxxxx> (04/03/26 1.1608.1.54)
> [ACPI] proposed fix for non-identity-mapped SCI override
> http://bugme.osdl.org/show_bug.cgi?id=2366
>
> <len.brown@xxxxxxxxx> (04/03/25 1.1608.1.53)
> [ACPI] PCI interrupt link routing (Luming Yu)
> use _PRS to determine resource type for _SRS
> fixes HP Proliant servers
> http://bugzilla.kernel.org/show_bug.cgi?id=1590
>
>
>
>
>
>
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Next message: Paul Jackson: "Re: [PATCH] mask ADT: new mask.h file [2/22]"
Previous message: Greg KH: "Re: [PATCH] s390 (8/10): zfcp fixes."
In reply to: Li, Shaohua: "RE: [ACPI] [BKPATCH] ACPI for 2.6"
Next in thread: Moore, Robert: "RE: [ACPI] [BKPATCH] ACPI for 2.6"
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