| Commit message (Collapse) | Author | Age | Files | Lines |
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'ec', 'misc', 'printk' and 'processor' into release
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entries
They were long enough set deprecated...
Update Documentation/cpu-freq/users-guide.txt:
The deprecated files listed there seen not to exist for some time anymore
already.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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According to kerneljanitors todo list all printk calls (beginning
a new line) should have an according KERN_* constant.
Those are the missing peaces here for the acpi subsystem.
Signed-off-by: Frank Seidel <frank@f-seidel.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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real module name.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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During early boot, ACPI RSDT/XSDT table entries are gathered into the
'initial_tables[]' array. This array is currently statically defined (see
./drivers/acpi/tables.c). When there are more table entries than can be
held in the 'initial_tables[]' array, the message "Truncating N table
entries!" is output. As currently implemented, this message will always
erroneously calculate N as 0.
This patch fixes the calculation that determines how many table entries
will be missing (truncated).
This modification may be used under either the GPL or the BSD-style
license used for Intel ACPI CA code.
Signed-off-by: Myron Stowe <myron.stowe@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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Some devices trigger a DEVICE_CHECK on every evalutation of _STA. This
can also be seen in commit 8b59560a3baf2e7c24e0fb92ea5d09eca92805db
(ACPI: dock: avoid check _STA method). If an undock is processed, the
dock driver sends a uevent and userspace might read the show_docked
property in sysfs. This causes an evaluation of _STA of the particular
device which causes the dock driver to immediately dock again.
In any case, evaluation of _STA (show_docked) does not necessarily mean
that we are docked, so check with the internal device structure.
http://bugzilla.kernel.org/show_bug.cgi?id=12360
Signed-off-by: Holger Macht <hmacht@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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When ACPI is disabled in the BIOS of this VIA C3 box,
it invalidates the RSDP, which Linux notices:
ACPI Error (tbxfroot-0218): A valid RSDP was not found [20080926]
Bug Linux neglected to disable ACPI at that stage,
and later scribbled on smp_found_config:
ACPI: No APIC-table, disabling MPS
But this box doesn't run well in legacy PIC mode,
it needed IOAPIC mode to perform correctly:
http://lkml.org/lkml/2009/2/5/39
So exit ACPI mode cleanly when we first detect
that it is hopeless.
Signed-off-by: Len Brown <len.brown@intel.com>
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eliminate the duplicate the name of "VGA"
http://bugzilla.kernel.org/show_bug.cgi?id=12514
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Fix two compilation warnings in drivers/acpi/sleep.c, one triggered
by unsetting CONFIG_SUSPEND and the other triggered by unsetting
CONFIG_HIBERNATION, by moving some code under the appropriate
#ifdefs .
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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This patch fixes the crash I experienced in 2.6.29-rc2.
Tested on ASUS M50vm.
Signed-off-by: Tero Roponen <tero.roponen@gmail.com>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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ACPICA exports acpi_os_validate_address() so the OS
can prevent BIOS AML from accessing specified addresses.
Start using this interface to prevent AML from accessing
some well known IO addresses that the OS "owns".
Signed-off-by: Len Brown <len.brown@intel.com>
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on boot, print out the OSI strings the BIOS uses to query the OS.
To see this output...
build with CONFIG_ACPI_DEBUG
boot with
"acpi.debug_level=4" (ACPI_LV_INFO) (enabled by default)
and
"acpi.debug_level=1" (ACPI_UTILITIES) (default is 0)
example output:
ACPI: BIOS _OSI(Windows 2001) supported
ACPI: BIOS _OSI(Windows 2001 SP1) supported
ACPI: BIOS _OSI(Windows 2001 SP2) supported
ACPI: BIOS _OSI(Windows 2006) supported
ACPI: BIOS _OSI(Linux) not-supported
ACPI: BIOS _OSI(FreeBSD) not-supported
Signed-off-by: Len Brown <len.brown@intel.com>
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CPU_IDLE=y has been default for ACPI=y since Nov-2007,
and has shipped in many distributions since then.
Here we delete the CPU_IDLE=n ACPI idle code, since
nobody should be using it, and we don't want to
maintain two versions.
Signed-off-by: Len Brown <len.brown@intel.com>
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It is true that BM_RLD needs to be set to enable
bus master activity to wake an older chipset (eg PIIX4) from C3.
This is contrary to the erroneous wording the ACPI 2.0, 3.0
specifications that suggests that BM_RLD is an indicator
rather than a control bit.
ACPI 1.0's correct wording should be restored in ACPI 4.0:
http://www.acpica.org/bugzilla/show_bug.cgi?id=689
But the kernel should not have to clear BM_RLD
when entering a non C3-type state just to set
it again when entering a C3-type C-state.
We should be able to set BM_RLD at boot time
and leave it alone -- removing the overhead of
accessing this IO register from the idle entry path.
Signed-off-by: Len Brown <len.brown@intel.com>
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PM1a_STS and PM1b_STS are twins that get OR'd together
on reads, and all writes are repeated to both.
The fields in PM1x_STS are single bits only,
there are no multi-bit fields.
So it is not necessary to lock PM1x_STS reads against
writes because it is impossible to read an intermediate
value of a single bit. It will either be 0 or 1,
even if a write is in progress during the read.
Reads are asynchronous to writes no matter if a lock
is used or not.
Signed-off-by: Len Brown <len.brown@intel.com>
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According to the Spec the first two elements in the _BCL package won't be
regarded as the available brightness level. The first is the brightness when
full power is connected to the box(It means that the AC adapter is plugged).
The second is the brightness level when the box is on battery.
If the first two elements are still used while finding the next brightness
level, it will fall back to the lowest level when keeping on pressing
hotkey. (On some boxes the brightness will be changed twice when hotkey is
pressed once. One is in the ACPI video driver. The other is changed by sys I/F.
In the ACPI video driver the first two elements will be used while changing
the brightness. But the first two elements is skipped while using sys I/F.
In such case there exists the inconsistency).
So he first two elements had better be skipped while showing the available
brightness or finding the next brightness level.
http://bugzilla.kernel.org/show_bug.cgi?id=12450
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Len Brown <len.brown@intel.com>
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ACPI thermal driver only re-evaluate VALID trip points.
For the broken BIOS show in
http://bugzilla.kernel.org/show_bug.cgi?id=8544
the active[0] is set to invalid at boot time
and it will not be re-evaluated again.
We can still get a single warning message at boot time.
http://marc.info/?l=linux-kernel&m=120496222629983&w=2
http://bugzilla.kernel.org/show_bug.cgi?id=12203
Signed-off-by: Zhang Rui<rui.zhang@intel.com>
Tested-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Len Brown <len.brown@intel.com>
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http://bugzilla.kernel.org/show_bug.cgi?id=9399
http://bugzilla.kernel.org/show_bug.cgi?id=11880
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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References: http://bugzilla.kernel.org/show_bug.cgi?id=11884
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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Conflicts:
drivers/misc/Kconfig
Signed-off-by: Len Brown <len.brown@intel.com>
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These are platform specific drivers that happen to use ACPI,
while drivers/acpi/ is for code that implements ACPI itself.
Signed-off-by: Len Brown <len.brown@intel.com>
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Conflicts:
drivers/acpi/pci_irq.c
Note that this merge disables
e1d3a90846b40ad3160bf4b648d36c6badad39ac
pci, acpi: reroute PCI interrupt to legacy boot interrupt equivalent
Signed-off-by: Len Brown <len.brown@intel.com>
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use ACPI_ALLOCATE_BUFFER to remove the allocations
within acpi_pci_bind(), acpi_pci_unbind() and acpi_pci_bind_root().
While there, delete some unnecessary param inits from those routines.
Delete concept of ACPI_PATHNAME_MAX, since this was the last use.
Signed-off-by: Len Brown <len.brown@intel.com>
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Add HP copyright to pci_irq.c.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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This patch makes function declarations consistent throughout
the file and removes some unnecessary initializations.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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acpi_pci_allocate_irq() and acpi_pci_free_irq() are trivial and
only used once, so just open-code them.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Remove unused "irq" field, remove unnecessary struct,
rename "handle" to "link".
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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We don't need a struct containing a count and a list_head; a simple
list_head is sufficient. The list iterators handle empty lists
fine.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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This folds acpi_pci_irq_derive() into acpi_pci_irq_lookup() so it
can be easily used by both acpi_pci_irq_enable() and acpi_pci_irq_disable().
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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No functional change; this just uses the typical pattern of
PCI INTx swizzling done on other architectures.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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This doesn't change anything functionally; it just changes tests
so we test for success instead of failure. This makes the code
read more easily and allows us to remove the "!entry" in the while
loop condition.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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We currently pass a callback function (either acpi_pci_allocate_irq() or
acpi_pci_free_irq()) to acpi_pci_irq_lookup() and acpi_pci_irq_derive().
I think it's simpler to remove the callback and just have the enable/
disable functions make the calls directly.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Print one message (either "found" or "not found") for every _PRT
search. And add pin information to the INTx swizzling debug.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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There's no reason to pass around segment, bus, and device independently
when we can just pass the pci_dev pointer, which carries all those
already.
The pci_dev contains an interrupt pin, too, but we still have to pass both
the pci_dev and the pin because when we use a bridge to derive an IRQ, we
need the pin from the downstream device, not the bridge.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Use the PCI INTx pin encoding (1=INTA, 2=INTB, etc) for _PRT quirks.
Then we can simply compare "entry->pin == quirk->pin".
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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This patch changes pci_irq.c to always use PCI INTx pin encodings
instead of a mix of PCI and _PRT encodings.
The PCI INTx pin numbers from the PCI_INTERRUPT_PIN config register
are 0=device doesn't use interrupts, 1=INTA, ..., 4=INTD. But the
_PRT table uses 0=INTA, ..., 3=INTD.
This patch converts the _PRT encoding to the PCI encoding immediately
when we add a _PRT entry to the global list. All the rest of the
code can then use the PCI encoding consistently.
The point of this is to make the interrupt swizzling look the same
as on other architectures, so someday we can unify them.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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This adds a helper function to convert INTx pin numbers from the _PRT
(0, 1, 2, 3) to the pin name ('A', 'B', 'C', 'D').
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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The struct acpi_prt_entry is used only in pci_irq.c, so there's no
need for the declaration to be public. This patch moves it into
pci_irq.c.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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The interrupt numbers from _PRT entries are GSIs, not Linux IRQs.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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_PRT entries don't contain any useful PCI function information (the
function part of the PCI address is supposed to be 0xffff), and we
don't ever look at it, so this patch just removes the reference to
it.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Previously, acpi_pci_irq_add_prt() did all its own buffer management.
But now that we have ACPI_ALLOCATE_BUFFER, we no longer need to do
that management. And we don't have to call acpi_get_irq_routing_table()
twice (once to learn the size of the buffer needed, and again to
actually get the table).
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Better to oops and learn about a bug than to silently cover it up.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Use the conventional format for PCI addresses (%04x:%02x:%02x.%d).
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (98 commits)
PCI PM: Put PM callbacks in the order of execution
PCI PM: Run default PM callbacks for all devices using new framework
PCI PM: Register power state of devices during initialization
PCI PM: Call pci_fixup_device from legacy routines
PCI PM: Rearrange code in pci-driver.c
PCI PM: Avoid touching devices behind bridges in unknown state
PCI PM: Move pci_has_legacy_pm_support
PCI PM: Power-manage devices without drivers during suspend-resume
PCI PM: Add suspend counterpart of pci_reenable_device
PCI PM: Fix poweroff and restore callbacks
PCI: Use msleep instead of cpu_relax during ASPM link retraining
PCI: PCIe portdrv: Add kerneldoc comments to remining core funtions
PCI: PCIe portdrv: Rearrange code so that related things are together
PCI: PCIe portdrv: Fix suspend and resume of PCI Express port services
PCI: PCIe portdrv: Add kerneldoc comments to some core functions
x86/PCI: Do not use interrupt links for devices using MSI-X
net: sfc: Use pci_clear_master() to disable bus mastering
PCI: Add pci_clear_master() as opposite of pci_set_master()
PCI hotplug: remove redundant test in cpq hotplug
PCI: pciehp: cleanup register and field definitions
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The _OSC capability OSC_MSI_SUPPORT is set when the root bridge is added
with pci_acpi_osc_support(), so we no longer need to do it in the PCI
MSI driver. Also adds the function pci_msi_enabled, which returns true
if pci=nomsi is not on the kernel command-line.
Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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