Reserved method has too many arguments (_OSC requires 4)
by Thomas Renninger
Hi,
I have a laptop freezing early, acpi=off and noapic helps.
I wonder whether this could have to do with the broken _OSC method.
I cannot access the machine myself, eventually I can get more info
if needed, but the machine is freezing really early (after ACPI
initialization, somewhere around bringing up CPUs (possibly when
starting PCI init already?).
This is not the first time I see this message.
It would be great to get (from include/linux/kernel.h):
#define FW_BUG "[Firmware Bug]: "
#define FW_WARN "[Firmware Warn]: "
#define FW_INFO "[Firmware Info]: "
marked messages into ACPICA and blame the guys who are responsible
for that.
My other concern/question is: what exactly happens in such a case?
Will _OSC get invoked at all?
If yes, what will be the last argument, zero, -1?
Hmm, I doubt it has to do with the freeze, but it would still be
great if someone knowing these parts could comment what people
with such a BIOS could expect to happen.
Thanks,
Thomas
Method (_OSC, 5, NotSerialized)
{
Store (Arg3, Local0)
Multiply (Local0, 0x04, Local1)
Name (BUF1, Buffer (Local1) {})
Store (Arg4, BUF1)
Store (Zero, Local1)
Store (Zero, Local2)
While (Local0)
{
Multiply (Local1, 0x04, Local2)
CreateDWordField (BUF1, Local2, CAPB)
If (Arg2)
{
If (LEqual (Local1, Zero))
{
And (CAPB, 0xFFFFFFFC)
}
}
Increment (Local1)
Decrement (Local0)
}
Return (BUF1)
}
11 years, 7 months
Can a userspace tool to read the Embedded Controller get added to acpica sources?
by Thomas Renninger
Hi,
next kernel will have EC read/write support.
A userspace tool is needed to make use of the interface.
As the Embedded Controller is tightly bound to ACPI
(devel/debugging/testing), the best package this tool would fit in is
acpica.
A new package is not worth it, if not accepted I'd still package
this together with acpica.rpm. But if it gets included, there is some
guarantee that this binary shows up in the same way on different
distros.
Thus it would be great if this code:
ftp://ftp.suse.com/pub/people/trenn/sources/ec/ec_access.c
Could get integrated into the acpica repository.
Not sure where this best could fit into if accepted, possibly:
acpica/source/os_specific/ec_access
or
acpica/source/os_specific/tools/ec_access
?
Thanks,
Thomas
12 years
acpi_os_read_memory() from interrupt context
by Bjorn Helgaas
Linux reads some ACPI registers from interrupt context. For example,
we read the PM1 Status register in the SCI interrupt handler via
this path:
acpi_irq
acpi_ev_sci_xrupt_handler
acpi_ev_fixed_event_detect
acpi_hw_register_read
acpi_hw_read_multiple
acpi_read
But acpi_read() takes a generic address structure, and if that
address happens to be in memory space (not I/O port space), we use
acpi_os_read_memory(). In Linux, that uses ioremap() to map the
address, and that doesn't work from interrupt context.
I can imagine fixing this by doing the ioremap() at boot-time
rather than at interrupt-time, but most of this interrupt path
is in the ACPI CA, not in Linux itself, so it would probably
require some redesign in the CA.
Any suggestions?
Bjorn
12 years, 1 month
[git pull request] ACPICA patches for Linux 2.6.36-merge
by Len Brown
Hi Linus,
please pull from:
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git acpica
This will update the files shown below.
thanks!
--
Len Brown
Intel Open Source Technology Center
ps. individual patches are available on linux-acpi(a)vger.kernel.org
and a consolidated plain patch is available here:
http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/patches/2.6.35/ac...
drivers/acpi/acpica/acevents.h | 4 +-
drivers/acpi/acpica/acglobal.h | 7 -
drivers/acpi/acpica/achware.h | 5 +-
drivers/acpi/acpica/aclocal.h | 6 +-
drivers/acpi/acpica/acnamesp.h | 7 -
drivers/acpi/acpica/acobject.h | 16 ++--
drivers/acpi/acpica/acpredef.h | 13 +-
drivers/acpi/acpica/acstruct.h | 32 +++---
drivers/acpi/acpica/dsinit.c | 14 +-
drivers/acpi/acpica/dsmethod.c | 20 +++-
drivers/acpi/acpica/dsmthdat.c | 16 +--
drivers/acpi/acpica/dsobject.c | 16 +++-
drivers/acpi/acpica/dsopcode.c | 6 +-
drivers/acpi/acpica/dsutils.c | 4 +-
drivers/acpi/acpica/evevent.c | 5 +-
drivers/acpi/acpica/evgpe.c | 69 +++++++++---
drivers/acpi/acpica/evgpeblk.c | 70 ++---------
drivers/acpi/acpica/evgpeinit.c | 236 +++----------------------------------
drivers/acpi/acpica/evrgnini.c | 10 +-
drivers/acpi/acpica/evxfevnt.c | 249 ++++++++++++++++-----------------------
drivers/acpi/acpica/exconfig.c | 2 +-
drivers/acpi/acpica/exdump.c | 6 +-
drivers/acpi/acpica/exfldio.c | 4 +-
drivers/acpi/acpica/exprep.c | 23 +---
drivers/acpi/acpica/exregion.c | 6 +-
drivers/acpi/acpica/hwgpe.c | 35 +-----
drivers/acpi/acpica/hwsleep.c | 2 +-
drivers/acpi/acpica/nsaccess.c | 9 +-
drivers/acpi/acpica/nsalloc.c | 94 +++++++--------
drivers/acpi/acpica/nsdump.c | 2 +-
drivers/acpi/acpica/nsinit.c | 16 ++--
drivers/acpi/acpica/nsnames.c | 4 +-
drivers/acpi/acpica/nsparse.c | 4 +-
drivers/acpi/acpica/nsrepair.c | 2 +-
drivers/acpi/acpica/nsrepair2.c | 7 +
drivers/acpi/acpica/nssearch.c | 15 +--
drivers/acpi/acpica/nsutils.c | 113 ------------------
drivers/acpi/acpica/nswalk.c | 15 +--
drivers/acpi/acpica/nsxfobj.c | 2 +-
drivers/acpi/acpica/utglobal.c | 2 +-
drivers/acpi/acpica/utxface.c | 8 +-
drivers/acpi/button.c | 6 +-
drivers/acpi/ec.c | 39 +-----
drivers/acpi/osl.c | 20 ---
drivers/acpi/scan.c | 7 +-
drivers/acpi/sleep.c | 15 +--
drivers/acpi/system.c | 6 +-
drivers/acpi/wakeup.c | 18 ++-
drivers/pci/pci-acpi.c | 6 +-
include/acpi/acoutput.h | 3 +-
include/acpi/acpixf.h | 13 +-
include/acpi/actbl2.h | 48 ++++++++
include/acpi/actypes.h | 8 +-
53 files changed, 470 insertions(+), 895 deletions(-)
through these commits:
Alexey Starikovskiy (3):
ACPICA: Expand initialization counters to 32 bits
ACPICA: Performance enhancement for namespace search and access
ACPICA: Optimization: Reduce the number of namespace walks
Bob Moore (13):
ACPICA: Add comment: _BCL cannot be sorted on the fly
ACPICA: iASL/Core: Add support for _WDG/_WED MS methods
ACPICA: Core: Replace all %d format specifiers with %u (unsigned)
ACPICA: Expand device initialization counters to 32 bits
ACPICA: Update flags for operand object
ACPICA: Add signatures for undefined tables: ATKG, GSCI, IEIT
ACPICA: Update version to 20100528
ACPICA: Add support for WDDT - Watchdog Descriptor Table
ACPICA: Update debug output components
ACPICA: Remove obsolete GPE function
ACPICA: Fix lint warning for 64-bit constant
ACPICA: Fix for Alias references within Package objects
ACPICA: Update version to 20100702
Lin Ming (1):
ACPICA: Rename acpi_hw_gpe_register_bit
Rafael J. Wysocki (10):
ACPICA: Introduce acpi_gpe_wakeup()
ACPICA: Remove wakeup GPE reference counting which is not used
ACPI / EC: Drop suspend and resume routines
ACPI / EC: Do not use acpi_set_gpe
ACPICA: Use low-level GPE enable during GPE block initialization
ACPICA: Drop acpi_set_gpe
ACPI: Fix bogus GPE test in acpi_bus_set_run_wake_flags()
ACPI / ACPICA: Do not execute _PRW methods during initialization
ACPI / ACPICA: Fail acpi_gpe_wakeup() if ACPI_GPE_CAN_WAKE is unset
ACPI / ACPICA: Simplify acpi_ev_initialize_gpe_block()
with this log:
commit a0d468718b9049f7396d101075a129a2d683ad66
Author: Rafael J. Wysocki <rjw(a)sisk.pl>
Date: Thu Jul 8 00:44:42 2010 +0200
ACPI / ACPICA: Simplify acpi_ev_initialize_gpe_block()
Simplify the main loop in acpi_ev_initialize_gpe_block() by
rearranging code and removing the "enabled" label that is not
necessary any more.
Signed-off-by: Rafael J. Wysocki <rjw(a)sisk.pl>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 9ce10df8d83d0528e80cd319b35ac5f6812b4f62
Author: Rafael J. Wysocki <rjw(a)sisk.pl>
Date: Thu Jul 8 00:45:34 2010 +0200
ACPI / ACPICA: Fail acpi_gpe_wakeup() if ACPI_GPE_CAN_WAKE is unset
Make acpi_gpe_wakeup() return error code for GPEs whose
ACPI_GPE_CAN_WAKE flag is not set. This way acpi_gpe_wakeup() will
only wake for the GPEs reported by the host OS as "wakeup" ones with
the help of acpi_gpe_can_wake().
Signed-off-by: Rafael J. Wysocki <rjw(a)sisk.pl>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 9874647ba1bdf3e1af25e079070a00676f60f2f0
Author: Rafael J. Wysocki <rjw(a)sisk.pl>
Date: Thu Jul 8 00:43:36 2010 +0200
ACPI / ACPICA: Do not execute _PRW methods during initialization
Currently, during initialization ACPICA walks the entire ACPI
namespace in search of any device objects with assciated _PRW
methods. All of the _PRW methods found are executed in the process
to extract the GPE information returned by them, so that the GPEs in
question can be marked as "able to wakeup" (more precisely, the
ACPI_GPE_CAN_WAKE flag is set for them). The only purpose of this
exercise is to avoid enabling the CAN_WAKE GPEs automatically, even
if there are _Lxx/_Exx methods associated with them. However, it is
both costly and unnecessary, because the host OS has to execute the
_PRW methods anyway to check which devices can wake up the system
from sleep states. Moreover, it then uses full information
returned by _PRW, including the GPE information, so it can take care
of disabling the GPEs if necessary.
Remove the code that walks the namespace and executes _PRW from
ACPICA and modify comments to reflect that change. Make
acpi_bus_set_run_wake_flags() disable GPEs for wakeup devices
so that they don't cause spurious wakeup events to be signaled.
This not only reduces the complexity of the ACPICA initialization
code, but in some cases it should reduce the kernel boot time as
well.
Unfortunately, for this purpose we need a new ACPICA function,
acpi_gpe_can_wake(), to be called by the host OS in order to disable
the GPEs that can wake up the system and were previously enabled by
acpi_ev_initialize_gpe_block() or acpi_ev_update_gpes() (such a GPE
should be disabled only once, because the initialization code enables
it only once, but it may be pointed to by _PRW for multiple devices
and that's why the additional function is necessary).
Signed-off-by: Rafael J. Wysocki <rjw(a)sisk.pl>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit e8e18c956152ec9c26c94c6401c174691a8f04e7
Author: Rafael J. Wysocki <rjw(a)sisk.pl>
Date: Thu Jul 8 00:42:51 2010 +0200
ACPI: Fix bogus GPE test in acpi_bus_set_run_wake_flags()
When we check if a GPE can be used for runtime signaling, we only
search the FADT GPE blocks, which is incorrect, becuase the GPE
may be located elsewhere. We really should be using the GPE device
information previously returned by _PRW here, so make that happen.
Signed-off-by: Rafael J. Wysocki <rjw(a)sisk.pl>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 9e6c3e996e3c80d00cf931538e17126efe45f45c
Author: Bob Moore <robert.moore(a)intel.com>
Date: Tue Jul 6 10:39:01 2010 +0800
ACPICA: Update version to 20100702
Version 20100702.
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 09079250db4d470f75eddcce31e0229c92d6c3bf
Author: Bob Moore <robert.moore(a)intel.com>
Date: Tue Jul 6 10:37:13 2010 +0800
ACPICA: Fix for Alias references within Package objects
This fixes a problem where a reference to an Alias within the
definition of a Package was not always resolved properly. Aliases
to objects like Processors, ThermalZones, etc. were resolved to the
actual object instead of a reference to the object as it should be.
Package objects are only allowed to contain integer, string,
buffer, package, and reference objects.
https://bugzilla.redhat.com/show_bug.cgi?id=608648
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 150dba38f0c3d2d5f5edc58145d202de08ed623c
Author: Bob Moore <robert.moore(a)intel.com>
Date: Tue Jul 6 10:35:55 2010 +0800
ACPICA: Fix lint warning for 64-bit constant
cast to u64.
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit de5668fe7549c0586c6f64fa5661604cf7029a99
Author: Bob Moore <robert.moore(a)intel.com>
Date: Tue Jul 6 10:30:37 2010 +0800
ACPICA: Remove obsolete GPE function
Remove acpi_hw_write_gpe_enable_reg, it had been reduced down to a
single line of code, and called from only one place.
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit ddcc6a037c0f9378f29658636a2c2b54c4238ec4
Author: Bob Moore <robert.moore(a)intel.com>
Date: Tue Jul 6 10:02:16 2010 +0800
ACPICA: Update debug output components
Add data table compiler output component
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 9d8b5e7b28179784e2c6250086a44021fbb9c5a0
Author: Bob Moore <robert.moore(a)intel.com>
Date: Tue Jul 6 09:58:11 2010 +0800
ACPICA: Add support for WDDT - Watchdog Descriptor Table
Header file support.
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 546eb57695875712f676e5f729159b0779f1c0af
Author: Rafael J. Wysocki <rjw(a)sisk.pl>
Date: Thu Jul 1 11:07:20 2010 +0800
ACPICA: Drop acpi_set_gpe
The acpi_set_gpe() function is a little awkward, because it doesn't
really work as advertised in the "disable" case. Namely, if a GPE
has been enabled with acpi_enable_gpe() and triggered a notification
to occur, and if acpi_set_gpe() is used to disable it before
acpi_ev_asynch_enable_gpe() runs, the GPE will be immediately enabled
by the latter as though the acpi_set_gpe() had no effect.
Thus, since it's been possible to make all of its callers use
alternative operations to disable or enable GPEs, acpi_set_gpe() can
be dropped.
Signed-off-by: Rafael J. Wysocki <rjw(a)sisk.pl>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 3bd741bd0dfcc1845ae6892baa5192c91addc84c
Author: Rafael J. Wysocki <rjw(a)sisk.pl>
Date: Thu Jul 1 11:01:12 2010 +0800
ACPICA: Use low-level GPE enable during GPE block initialization
The GPE block initialization code in acpi_ev_initialize_gpe_block()
uses acpi_set_gpe() to make sure that the GPEs with nonzero
runtime counter will remain enabled, but since it already has
a struct acpi_gpe_event_info object for each GPE, it might use
the low-level GPE enabling function, acpi_clear_and_enable_gpe(),
for this purpose.
To make that happen, move acpi_clear_and_enable_gpe() to
drivers/acpi/acpica/evgpe.c and rename it to acpi_ev_enable_gpe(),
modify the two existing users of it accordingly and modify
acpi_ev_initialize_gpe_block() to use it instead of acpi_set_gpe()
and to check its return value.
Signed-off-by: Rafael J. Wysocki <rjw(a)sisk.pl>
Signed-off-by: Len Brown <len.brown(a)intel.com>
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 3784730b02b9f147a55b0e4623fcad671273e6e6
Author: Rafael J. Wysocki <rjw(a)sisk.pl>
Date: Fri Jun 25 01:21:42 2010 +0200
ACPI / EC: Do not use acpi_set_gpe
The EC driver is the last user of acpi_set_gpe() and since it is
guaranteed that the EC GPE will not be shared, acpi_disable_gpe()
and acpi_enable_gpe() may be used for disabling the GPE temporarilty
if a GPE storm is detected and re-enabling it during EC transactions.
Signed-off-by: Rafael J. Wysocki <rjw(a)sisk.pl>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit b63559f5ce08bc8f94ce144a8d06f7af607ecc53
Author: Rafael J. Wysocki <rjw(a)sisk.pl>
Date: Fri Jun 25 01:20:38 2010 +0200
ACPI / EC: Drop suspend and resume routines
The suspend and resume routines provided by the EC driver are not
really necessary, because the handler of the GPE disabled by them
is not going to be executed after suspend_device_irqs() and before
resume_device_irqs() anyway.
Signed-off-by: Rafael J. Wysocki <rjw(a)sisk.pl>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit a44061aa8b5d58b2729faca4c155a94a5bea2a09
Author: Rafael J. Wysocki <rjw(a)sisk.pl>
Date: Thu Jul 1 10:11:45 2010 +0800
ACPICA: Remove wakeup GPE reference counting which is not used
After the previous patch that introduced acpi_gpe_wakeup() and
modified the ACPI suspend and wakeup code to use it, the third
argument of acpi_{enable|disable}_gpe() and the GPE wakeup
reference counter are not necessary any more. Remove them and
modify all of the users of acpi_{enable|disable}_gpe()
accordingly. Also drop GPE type constants that aren't used
any more.
Signed-off-by: Rafael J. Wysocki <rjw(a)sisk.pl>
Signed-off-by: Len Brown <len.brown(a)intel.com>
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit e8b6f970107cfc9c00cdcdb12ec6c7e135cf379f
Author: Rafael J. Wysocki <rjw(a)sisk.pl>
Date: Fri Jun 25 01:18:39 2010 +0200
ACPICA: Introduce acpi_gpe_wakeup()
ACPICA uses reference counters to avoid disabling GPEs too early in
case they have been enabled for many times. This is done separately
for runtime and for wakeup, but the wakeup GPE reference counter is
not really necessary, because GPEs are only enabled to wake up the
system at the hardware level by acpi_enter_sleep_state(). Thus it
only is necessary to set the corresponding bits in the wakeup enable
masks of these GPEs' registers right before the system enters a sleep
state. Moreover, the GPE wakeup enable bits can only be set when the
target sleep state of the system is known and they need to be cleared
immediately after wakeup regardless of how many wakeup devices are
associated with a given GPE.
On the basis of the above observations, introduce function
acpi_gpe_wakeup() to be used for setting or clearing the enable bit
corresponding to a given GPE in its enable register's enable_for_wake
mask. Modify the ACPI suspend and wakeup code the use
acpi_gpe_wakeup() instead of acpi_{enable|disable}_gpe() to set
and clear GPE enable bits in their registers' enable_for_wake masks
during system transitions to a sleep state and back to the working
state, respectively. [This will allow us to drop the third
argument of acpi_{enable|disable}_gpe() and simplify the GPE
handling code.]
Signed-off-by: Rafael J. Wysocki <rjw(a)sisk.pl>
Signed-off-by: Len Brown <len.brown(a)intel.com>
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit b76df673522d94e3eafcf16935b3d7e5dded3078
Author: Lin Ming <ming.m.lin(a)intel.com>
Date: Thu Jul 1 10:07:17 2010 +0800
ACPICA: Rename acpi_hw_gpe_register_bit
Rename acpi_hw_gpe_register_bit to acpi_hw_get_gpe_register_bit
in order to be same with ACPICA code base.
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit ccba77eb45c36cf1d8b22f241eb8a4a292c1362e
Author: Bob Moore <robert.moore(a)intel.com>
Date: Mon May 31 09:23:22 2010 +0800
ACPICA: Update version to 20100528
Version 20100528.
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 4461cf546ec8c97b6b997b8e533d6de1960499d3
Author: Bob Moore <robert.moore(a)intel.com>
Date: Mon May 31 09:22:12 2010 +0800
ACPICA: Add signatures for undefined tables: ATKG, GSCI, IEIT
These ACPI tables have been seen in the field, but the actual
table definitions are unkown at this time.
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit a9fc03125ea0001ff18bc29da9539b587fdbd1d7
Author: Alexey Starikovskiy <astarikovskiy(a)suse.de>
Date: Wed May 26 13:59:51 2010 +0800
ACPICA: Optimization: Reduce the number of namespace walks
On control method exit, only walk the namespace if the method is
known to have created namespace objects outside of its local scope.
Signed-off-by: Alexey Starikovskiy <astarikovskiy(a)suse.de>
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 20d33aea7ae7ad858f3f91c834d9043cd8122d38
Author: Bob Moore <robert.moore(a)intel.com>
Date: Thu May 27 09:27:34 2010 +0800
ACPICA: Update flags for operand object
Remove obsolete AOPOBJ_SINGLE_DATUM. Add AOPOBJ_INVALID for
use if the host OS rejects the address of an operation region
(currently only used by Linux.)
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit c45b5c097001480e66d4c523eb715ad317a4ef77
Author: Alexey Starikovskiy <astarikovskiy(a)suse.de>
Date: Wed May 26 11:53:07 2010 +0800
ACPICA: Performance enhancement for namespace search and access
This change enhances the performance of namespace searches and
walks by adding a backpointer to the parent in each namespace
node. On large namespaces, this change can improve overall ACPI
performance by up to 9X. Adding a pointer to each namespace node
increases the overall size of the internal namespace by about 5%,
since each namespace entry usually consists of both a namespace
node and an ACPI operand object.
Signed-off-by: Alexey Starikovskiy <astarikovskiy(a)suse.de>
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 5821f75421aa7c7bafdec291223153597f649934
Author: Bob Moore <robert.moore(a)intel.com>
Date: Wed May 26 11:48:22 2010 +0800
ACPICA: Expand device initialization counters to 32 bits
Expand the various device initialization counters from 16-bit
to 32-bit. Allows for very large namespaces.
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit b27d65975c252ff774edff8e01f0a9fd46d8ab62
Author: Bob Moore <robert.moore(a)intel.com>
Date: Wed May 26 11:47:13 2010 +0800
ACPICA: Core: Replace all %d format specifiers with %u (unsigned)
With only a few exceptions, ACPICA does not use signed integers.
Therefore, %d is incorrect.
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 96b7b7ad79e4bd8a0ae67dd201f7532ef4abf1c1
Author: Alexey Starikovskiy <astarikovskiy(a)suse.de>
Date: Wed May 26 11:20:47 2010 +0800
ACPICA: Expand initialization counters to 32 bits
Expand the various initialization counters from 16-bit to 32-bit.
Allows for very large namespaces.
Signed-off-by: Alexey Starikovskiy <astarikovskiy(a)suse.de>
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit 507f7d5e27015be1e5dda5c56bb5e10315b76f71
Author: Bob Moore <robert.moore(a)intel.com>
Date: Wed May 26 11:18:35 2010 +0800
ACPICA: iASL/Core: Add support for _WDG/_WED MS methods
These objects are defined by "Windows Instrumentation", and are
not part of the ACPI spec. Adds compiler support and runtime
typechecking support in the ACPICA core. ACPICA BZ 860.
http://www.acpica.org/bugzilla/show_bug.cgi?id=860
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
commit aa9d36060fb7480a5907660b7ba61c3fda20fc61
Author: Bob Moore <robert.moore(a)intel.com>
Date: Wed May 26 11:03:56 2010 +0800
ACPICA: Add comment: _BCL cannot be sorted on the fly
Because of package index values used for _BQC and _BCM.
Signed-off-by: Bob Moore <robert.moore(a)intel.com>
Signed-off-by: Lin Ming <ming.m.lin(a)intel.com>
Signed-off-by: Len Brown <len.brown(a)intel.com>
12 years, 1 month
ACPICA version 20100806 released
by Moore, Robert
06 August 2010. Summary of changes for version 20100806:
This release is available at www.acpica.org/downloads
1) ACPI CA Core Subsystem:
Designed and implemented a new host interface to the _OSI support code. This will allow the host to dynamically add or remove multiple _OSI strings, as well as install an optional handler that is called for each _OSI invocation. Also added a new AML debugger command, 'osi' to display and modify the global _OSI string table, and test support in the AcpiExec utility. See the ACPICA reference manual for full details. Lin Ming, Bob Moore. ACPICA BZ 836.
New Functions:
AcpiInstallInterface - Add an _OSI string.
AcpiRemoveInterface - Delete an _OSI string.
AcpiInstallInterfaceHandler - Install optional _OSI handler.
Obsolete Functions:
AcpiOsValidateInterface - no longer used.
New Files:
source/components/utilities/utosi.c
Re-introduced the support to enable multi-byte transfers for Embedded Controller (EC) operation regions. A reported problem was found to be a bug in the host OS, not in the multi-byte support. Previously, the maximum data size passed to the EC operation region handler was a single byte. There are often EC Fields larger than one byte that need to be transferred, and it is useful for the EC driver to lock these as a single transaction. This change enables single transfers larger than 8 bits. This effectively changes the access to the EC space from ByteAcc to AnyAcc, and will probably require changes to the host OS Embedded Controller driver to enable 16/32/64/256-bit transfers in addition to 8-bit transfers. Alexey Starikovskiy, Lin Ming.
Fixed a problem with the prototype for AcpiOsReadPciConfiguration. The prototype in acpiosxf.h had the output value pointer as a (void *).
It should be a (UINT64 *). This may affect some host OSL code.
Fixed a couple problems with the recently modified Linux makefiles for iASL and AcpiExec. These new makefiles place the generated object files in the local directory so that there can be no collisions between the files that are shared between them that are compiled with different options.
Example Code and Data Size: These are the sizes for the OS-independent acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The debug version of the code includes the debug output trace mechanism and has a much larger code and data size.
Previous Release:
Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total
Debug Version: 164.0K Code, 51.5K Data, 215.5K Total
Current Release:
Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total
Debug Version: 165.1K Code, 51.9K Data, 217.0K Total
2) iASL Compiler/Disassembler and Tools:
iASL/Disassembler: Added a new option (-da, "disassemble all") to load the namespace from and disassemble an entire group of AML files. Useful for loading all of the AML tables for a given machine (DSDT, SSDT1...SSDTn) and disassembling with one simple command. ACPICA BZ 865. Lin Ming.
iASL: Allow multiple invocations of -e option. This change allows multiple uses of -e on the command line: "-e ssdt1.dat -e ssdt2.dat". ACPICA BZ 834. Lin Ming.
12 years, 1 month
Error in documentation of AcpiOsDerivePciId?
by Grégoire Sutre
Hi list,
According to the ACPICA Programmer Reference, the function
AcpiOsDerivePciId takes as arguments:
AcpiOsDerivePciId(
ACPI_HANDLE DeviceHandle
ACPI_HANDLE PciRegionHandle
ACPI_PCI_ID **PciId)
with:
- DeviceHandle: a handle to the PCI device.
- PciRegionHandle: a handle the PCI configuration space operation
region.
However, the only call to AcpiOsDerivePciId in the ACPICA code, in
events/evrgnini.c, is:
AcpiOsDerivePciId (PciRootNode, RegionObj->Region.Node, &PciId);
Moreover, the file include/acpiosxf.h contains:
/*
* Interim function needed for PCI IRQ routing
*/
void
AcpiOsDerivePciId(
ACPI_HANDLE Rhandle,
ACPI_HANDLE Chandle,
ACPI_PCI_ID **PciId);
So it seems to me that the correct arguments for AcpiOsDerivePciId are:
AcpiOsDerivePciId(
ACPI_HANDLE PciRootHandle
ACPI_HANDLE DeviceHandle
ACPI_PCI_ID **PciId)
with:
- PciRootHandle: a handle the PCI root bridge upstream of the PCI
device (or to the name space root node if no
PCI root bridge was found in the ancestors).
- DeviceHandle: a handle to the PCI device.
Is that correct?
Thanks for your help,
Grégoire
12 years, 1 month
