| Age | Commit message (Collapse) | Author |
|---|
|
commands
The ACPI EC that is used in MSI laptops knows some non-standard
commands for changing the screen brighntess and a few other things,
which are used by the msi-laptop.c driver. Unfortunately for these
commands no GPE events for IBF and OBF are triggered. Since nowadays
the EC code uses the ec_intr=1 mode by default, this causes these
operations to timeout, although they don't fail. In result, all
operations that you can do with the msi-laptop.c driver take more or
less 1s to complete, which is awfully slow.
In one of the more recent kernels (2.6.20?) the EC subsystem has been
revamped. With that change the EC timeout has been increased. before
that increase the MSI EC accesses were slow -- but not *that* slow,
hence I took notice of this limitation of the MSI EC hardware only very
recently.
The standard EC operations on the MSI EC as defined in the ACPI spec
support GPE events properly.
The following patch adds a new argument "force_poll" to the
ec_transaction() function (and friends). If set to 1, the function
will poll for IBF/OBF even if ec_intr=1 is enabled. If set to 0 the
current behaviour is used. The msi-laptop driver is modified to make
use of this new flag, so that OBF/IBF is polled for the special MSI EC
transactions -- but only for them.
Signed-off-by: Lennart Poettering <mzxreary@0pointer.de>
Acked-by: Alexey Starikovskiy <aystarik@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
acpi_table_parse_madt_family() is also used to parse SRAT entries.
So re-name it to acpi_table_parse_entries(), and re-name the
madt-specific variables within it accordingly.
cosmetic only.
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
acpi_madt_entry_handler() is also used for the SRAT,
so re-name it acpi_table_entry_handler().
cosmetic only.
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Provide ACPI _PRT support for SN Altix systems.
The SN Altix platform does not conform to the
IOSAPIC IRQ routing model, so a new acpi_irq_model
(ACPI_IRQ_MODEL_PLATFORM) has been defined. The SN
platform specific code sets acpi_irq_model to
this new value, and keys off of it in acpi_register_gsi()
to avoid the iosapic code path.
Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Unify the following functions:
acpi_ec_poll_read()
acpi_ec_poll_write()
acpi_ec_poll_query()
acpi_ec_intr_read()
acpi_ec_intr_write()
acpi_ec_intr_query()
into:
acpi_ec_poll_transaction()
acpi_ec_intr_transaction()
These new functions take as arguments an ACPI EC command, a few bytes
to write to the EC data register and a buffer for a few bytes to read
from the EC data register. The old _read(), _write(), _query() are
just special cases of these functions.
Then unified the code in acpi_ec_poll_transaction() and
acpi_ec_intr_transaction() a little more. Both functions are now just
wrappers around the new acpi_ec_transaction_unlocked() function. The
latter contains the EC access logic, the two original
function now just do their special way of locking and call the the
new function for the actual work.
This saves a lot of very similar code. The primary reason for doing
this, however, is that my driver for MSI 270 laptops needs to issue
some non-standard EC commands in a safe way. Due to this I added a new
exported function similar to ec_write()/ec_write() which is called
ec_transaction() and is essentially just a wrapper around
acpi_ec_{poll,intr}_transaction().
Signed-off-by: Lennart Poettering <mzxreary@0pointer.de>
Acked-by: Luming Yu <luming.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
This is to find node id from acpi's handle of memory_device in DSDT. _PXM for
the new node can be found by acpi_get_pxm() by using new memory's handle. So,
node id can be found by pxm_to_nid_map[].
This patch becomes simpler than v2 of node hot-add patch.
Because old add_memory() function doesn't have node id parameter.
So, kernel must find its handle by physical address via DSDT again.
But, v3 just give node id to add_memory() now.
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
|
Consolidate the various arch-specific implementations of pxm_to_node() and
node_to_pxm() into a single generic version.
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
|
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
|
|
Currently, acpi video options can only be set on kernel command line. That's
little inflexible; I'd like userland s2ram application that just works, and
modifying kernel command line according to whitelist is not fun. It is better
to just allow s2ram application to set video options just before suspend
(according to the whitelist).
This implements sysctl to allow setting suspend video options without reboot.
(akpm: Documentation updates for this new sysctl are pending..)
Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: "Brown, Len" <len.brown@intel.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
|
Completed a major overhaul of the Resource Manager code -
specifically, optimizations in the area of the AML/internal
resource conversion code. The code has been optimized to
simplify and eliminate duplicated code, CPU stack use has
been decreased by optimizing function parameters and local
variables, and naming conventions across the manager have
been standardized for clarity and ease of maintenance (this
includes function, parameter, variable, and struct/typedef
names.)
All Resource Manager dispatch and information tables have
been moved to a single location for clarity and ease of
maintenance. One new file was created, named "rsinfo.c".
The ACPI return macros (return_ACPI_STATUS, etc.) have
been modified to guarantee that the argument is
not evaluated twice, making them less prone to macro
side-effects. However, since there exists the possibility
of additional stack use if a particular compiler cannot
optimize them (such as in the debug generation case),
the original macros are optionally available. Note that
some invocations of the return_VALUE macro may now cause
size mismatch warnings; the return_UINT8 and return_UINT32
macros are provided to eliminate these. (From Randy Dunlap)
Implemented a new mechanism to enable debug tracing for
individual control methods. A new external interface,
acpi_debug_trace(), is provided to enable this mechanism. The
intent is to allow the host OS to easily enable and disable
tracing for problematic control methods. This interface
can be easily exposed to a user or debugger interface if
desired. See the file psxface.c for details.
acpi_ut_callocate() will now return a valid pointer if a
length of zero is specified - a length of one is used
and a warning is issued. This matches the behavior of
acpi_ut_allocate().
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Delete the ability to build an ACPI kernel that does
not include PCI support. When such a machine is created
and it requires a tuned kernel, send a patch.
http://bugzilla.kernel.org/show_bug.cgi?id=1364
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
it is a synonym for CONFIG_ACPI
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
it has been a synonym for CONFIG_ACPI since 2.6.12
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Current acpi_register_gsi() function has no way to indicate errors to its
callers even though acpi_register_gsi() can fail to register gsi because of
some reasons (out of memory, lack of interrupt vectors, incorrect BIOS, and so
on). As a result, caller of acpi_register_gsi() cannot handle the case that
acpi_register_gsi() fails. I think failure of acpi_register_gsi() should be
handled properly.
This series of patches changes acpi_register_gsi() to return negative value on
error, and also changes callers of acpi_register_gsi() to handle failure of
acpi_register_gsi().
This patch changes the type of return value of acpi_register_gsi() from
"unsigned int" to "int" to indicate an error. If acpi_register_gsi() fails to
register gsi, it returns negative value.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
|
|
Add reference count and disable ACPI PCI Interrupt Link
when no device still uses it.
Warn when drivers have not released Link at suspend time.
http://bugzilla.kernel.org/show_bug.cgi?id=3469
Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
http://bugme.osdl.org/show_bug.cgi?id=4016
Written-by: David Shaohua Li <shaohua.li@intel.com>
Acked-by: Adam Belay <abelay@novell.com>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
ACPI 3.0 added a Correctable Platform Error Interrupt (CPEI)
Processor Overide flag to MADT.Platform_Interrupt_Source.
Record the processor that was provided as hint from ACPI.
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
This patch is the first step in properly handling the MCFG PCI table.
It defines the structures properly, and saves off the table so that the
pci mmconfig code can access it. It moves the parsing of the table a
little later in the boot process, but still before the information is
needed.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
|
This patch adds the following new interfaces for I/O xAPIC
hotplug. The implementation of these interfaces depends on each
architecture.
o int acpi_register_ioapic(acpi_handle handle, u64 phys_addr,
u32 gsi_base);
This new interface is to add a new I/O xAPIC specified by
phys_addr and gsi_base pair. phys_addr is the physical address
to which the I/O xAPIC is mapped and gsi_base is global system
interrupt base of the I/O xAPIC. acpi_register_ioapic returns
0 on success, or negative value on error.
o int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
This new interface is to remove a I/O xAPIC specified by
gsi_base. acpi_unregister_ioapic returns 0 on success, or
negative value on error.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
|
|
I'm not sure why this issue is suddenly showing, but without this
patchlet, the zx1 config won't compile anymore (e.g., to see the
compilation-error, look for "***" in [1]).
[1] http://www.gelato.unsw.edu.au/kerncomp/results//2005-06-06-17-00/zx1_defconfig-log.html
Signed-off-by: David Mosberger-Tang <davidm@hpl.hp.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
|
Delete quirk_via_bridge(), restore quirk_via_irqpic() -- but now
improved to be invoked upon device ENABLE, and now only for VIA devices
-- not all devices behind VIA bridges.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
|
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
- Fix it for older C compilers.
- Extern decls always, always, always go in header files, please.
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
|
Architecture dependent IRQ resources such as interrupt vector for PCI
devices are allocated at pci_enable_device() time on i386, x86-64 and
ia64 platform. Today, however, these IRQ resources are never
deallocated even if they are no longer used. The following set of
patches adds supports to deallocate IRQ resources at
pci_disable_device() time.
The motivation of the set of patches is as follows:
- IRQ resources such as interrupt vectors should be freed if they
are no longer used because the amount of these resources are
limited. By deallocating IRQ resources, we can recycle them.
- I think some hardwares will support hot-pluggable I/O units with
I/O xAPICs in the near future. So I/O xAPIC hot-plug support by
OS will be needed soon. IRQ resouces deallocation will be one of
the most important stuff for I/O xAPIC hot-plug.
For now, the following set of patches has ia64 implementation only.
i386 and x86_64 implementations are TBD.
This patch is ACPI portion of IRQ deallocation. This patch defines the
following new interface. The implementation of this interface depends
on each platform.
o void acpi_unregister_gsi(u32 gsi)
This is a opposite portion of acpi_register_gsi(). This has a
responsibility for deallocating IRQ resources associated with
the specified GSI number.
We need to consider the case of shared interrupt. In the case
of shared interrupt, acpi_register_gsi() is called multiple
times for one gsi. That is, registrations and unregistrations
can be nested.
This function undoes the effect of one call to
acpi_register_gsi(). If this matches the last registration,
IRQ resources associated with the specified GSI number are
freed.
This patch also adds the following new function.
o void acpi_pci_irq_disable (struct pci_dev *dev)
This function is a opposite portion of
acpi_pci_enable_irq(). It clears the device's linux IRQ number
and calls acpi_unregister_gsi() to deallocate IRQ resources.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
|
Split ACPI boot table parsing
Split ACPI boot table parsing into two parts. First a acpi_boot_table_init()
call that initializes the basic ACPI table parsing machinery and discovers the
RSDP, and then another call to actually parse the various boot tables.
This is needed for a followon patch that implements SRAT support, because
nodes need to be set up before the other ACPI tables can be parsed.
On x86-64 I moved the early initialization very early because that is needed
for the SRAT parser.
On i386 it should be a nop.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
|
|
|
Now "max_cstate=" instead of "acpi_cstate_limit="
Delete redundant static cstate flags .c2 and .c3
http://bugme.osdl.org/show_bug.cgi?id=3549
For static processor driver, boot cmdline:
processor.max_cstate=2
For processor module, /etc/modprobe.conf:
options processor max_cstate=2
or
# modprobe processor max_cstate=2
From kernel or kernel module:
#include <linux/acpi.h>
acpi_set_cstate_limit(2);
Suggested-by: Pavel Machek
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
|
|
|
|
Useful to workaround C3 ipw2100 packet loss,
reducing noise or boot issues on some models.
http://bugme.osdl.org/show_bug.cgi?id=3549
For static processor driver, boot cmdline:
processor.acpi_cstate_limit=2
For processor module, /etc/modprobe.conf:
options processor acpi_cstate_limit=2
For manual processor module load:
# modprobe processor acpi_cstate_limit=2
From kernel or kernel module:
#include <linux/acpi.h>
acpi_set_cstate_limit(2);
Inspired by patches from Jos Delbar and Andi Kleen
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
|
|
analogous i386 and x86_64 code TBD
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
devices use IRQ of legacy PNP devices.
Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
|
|
|
|
http://bugme.osdl.org/show_bug.cgi?id=2574
mp_parse_prt() and iosapic_parse_prt() used to allocate all
IRQs, whether devices needed them or not. Some devices
failed because the this method enabled unused PCI Interrupt
Link Devices, which disrupted active link devices.
Now the PRT knowledge is pulled out of the arch
code and the IRQ allocation and IO-APIC programming
is done by pci_enable_device().
This is also a step toward allowing the addition
of new root bridges and PRTs at run-time.
The architecture supplies
unsigned int
acpi_register_gsi(u32 gsi, int edge_level, int active_high_low)
which is called by acpi_pci_irq_enable(). ACPI supplies
all the information from the PRT, and the arch sets up
the routing and returns the IRQ it allocated.
|
|
http://bugzilla.kernel.org/show_bug.cgi?id=1434
|
|
|
|
|
|
|
|
from Jes Sorensen
|
