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* ACPI: support acpi_device_ops .notify methodsBjorn Helgaas2009-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for ACPI device driver .notify() methods. If such a method is present, Linux/ACPI installs a handler for device notifications (but not for system notifications such as Bus Check, Device Check, etc). When a device notification occurs, Linux/ACPI passes it on to the driver's .notify() method. In most cases, this removes the need for drivers to install their own handlers for device-specific notifications. For fixed hardware devices like some power and sleep buttons, there's no notification value because there's no control method to execute a Notify opcode. When a fixed hardware device generates an event, we handle it the same as a regular device notification, except we send a ACPI_FIXED_HARDWARE_EVENT value. This is outside the normal 0x0-0xff range used by Notify opcodes. Several drivers install their own handlers for system Bus Check and Device Check notifications so they can support hot-plug. This patch doesn't affect that usage. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Reviewed-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'linus' into releaseLen Brown2009-04-05
|\ | | | | | | | | | | | | Conflicts: arch/x86/kernel/cpu/cpufreq/longhaul.c Signed-off-by: Len Brown <len.brown@intel.com>
| * acpi/x86: introduce __apci_map_table, v4Yinghai Lu2009-02-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | to prevent wrongly overwriting fixmap that still want to use. ACPI used to rely on low mappings being all linearly mapped and grew a habit: it never really unmapped certain kinds of tables after use. This can cause problems - for example the hypothetical case when some spurious access still references it. v2: remove prev_map and prev_size in __apci_map_table v3: let acpi_os_unmap_memory() call early_iounmap too, so remove extral calling to early_acpi_os_unmap_memory v4: fix typo in one acpi_get_table_with_size calling Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Merge branch 'x2apic' into releaseLen Brown2009-04-05
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| * | ACPI: update x2apic commentsSuresh Siddha2009-04-03
| |/ | | | | | | | | Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'constify' into releaseLen Brown2009-04-05
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| * | ACPI: constify VFTs (1/2)Jan Engelhardt2009-04-03
| |/ | | | | | | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'video' into releaseLen Brown2009-04-05
|\ \ | | | | | | | | | | | | | | | | | | Conflicts: drivers/acpi/video.c Signed-off-by: Len Brown <len.brown@intel.com>
| * | ACPI: Populate DIDL before registering ACPI video device on IntelMatthew Garrett2009-03-27
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | Intel graphics hardware that implements the ACPI IGD OpRegion spec requires that the list of display devices be populated before any ACPI video methods are called. Detect when this is the case and defer registration until the opregion code calls it. Fixes crashes on HP laptops. http://bugzilla.kernel.org/show_bug.cgi?id=11259 Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'driver-ops-cleanup' into releaseLen Brown2009-04-05
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| * | ACPI: remove unused acpi_bus_ops flagsBjorn Helgaas2009-03-27
| | | | | | | | | | | | | | | | | | | | | | | | In acpi_bus_ops, only the acpi_op_add and acpi_op_start flags are used, so remove all the rest. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | ACPI: remove unused acpi_device_ops .shutdown methodBjorn Helgaas2009-03-27
| | | | | | | | | | | | | | | | | | | | | No drivers use the .shutdown method, so remove it. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | ACPI: remove unused acpi_device_ops .lock and .scan methodsBjorn Helgaas2009-03-27
| |/ | | | | | | | | | | | | | | No drivers use the .lock and .scan methods, and the Linux/ACPI code doesn't even provide a way to invoke them, so remove them. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'bjorn-initcall-cleanup' into releaseLen Brown2009-04-05
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| * | ACPI: move private declarations to internal.hBjorn Helgaas2009-03-17
| |/ | | | | | | | | | | | | | | | | | | A number of things that shouldn't be exposed outside the ACPI core were declared in include/acpi/acpi_drivers.h, where anybody can see them. This patch moves those declarations to a new "internal.h" inside drivers/acpi. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Update version to 20090320Bob Moore2009-03-27
| | | | | | | | | | | | | | | | Version 20090320. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Remove obsolete acpi_os_validate_address interfaceBob Moore2009-03-27
| | | | | | | | | | | | | | | | | | This interface is no longer necessary. Requests should be validated on a per-field basis, not on the entire operation region. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Add manifest constants for bit register valuesBob Moore2009-03-27
| | | | | | | | | | | | | | | | | | Add and deploy constants for the PM status/enable/control registers. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Update version to 20090220Bob Moore2009-03-26
| | | | | | | | | | | | | | | | Version 20090220. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Rename ACPI bit register access functionsBob Moore2009-03-26
| | | | | | | | | | | | | | | | | | | | Rename acpi_get_register and acpi_set_register to clarify the purpose of these functions. New names are acpi_read_bit_register and acpi_write_bit_register. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Optimize ACPI register lockingBob Moore2009-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Removed locking for reads from the ACPI bit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is not required when reading the single-bit registers. The acpi_get_register_unlocked function is no longer needed and has been removed. This will improve performance for reads on these registers. ACPICA BZ 760. http://www.acpica.org/bugzilla/show_bug.cgi?id=760 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Conditionally compile acpi_set_firmware_waking_vector64Bob Moore2009-03-26
| | | | | | | | | | | | | | | | This function is only needed on 64-bit host operating systems. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Remove redundant ACPI_BITREG_SLEEP_TYPE_BBob Moore2009-03-26
| | | | | | | | | | | | | | | | | | | | | | | | This type is the same as TYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to simply SLEEP_TYPE. ACPICA BZ 754. http://www.acpica.org/bugzilla/show_bug.cgi?id=754 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Fix parameter validation for acpi_read/writeBob Moore2009-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Now return AE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS if the register has an address of zero. Previously, these cases simply returned AE_OK. For optional registers such as PM1B status/enable/control, the caller should check for a valid register address before calling. ACPICA BZ 748. http://www.acpica.org/bugzilla/show_bug.cgi?id=748 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Update version to 20090123Bob Moore2009-03-26
| | | | | | | | | | | | | | | | Update version to 20090123. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Update FADT flag definitionsBob Moore2009-03-26
| | | | | | | | | | | | | | | | | | Add new flags in the Boot Architecture flags field. Update comments for all FADT flags. Add FADT version when each flag was defined. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Allow OS override of all ACPI tablesBob Moore2009-03-26
|/ | | | | | | | | | Previously, the table override mechanism was implemented for the DSDT only. Now, any table in the RSDT/XSDT can be replaced by the host OS. (including the DSDT). Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: Enable bit 11 in _PDC to advertise hw coordPallipadi, Venkatesh2009-02-07
| | | | | | | | | | | | | | Bit 11 in intel PDC definitions is meant for OS capability to handle hardware coordination of P-states. In Linux we have always supported hwardware coordination of P-states. Just let the BIOSes know that we support it, by setting this bit. Some BIOSes use this bit to choose between hardware or software coordination and without this change below, BIOSes switch to software coordination, which is not very optimal in terms of power consumption and extra wakeups from idle. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: fix ACPI_FADT_S4_RTC_WAKE commentDavid Brownell2009-01-16
| | | | | | | | | Make the comment for ACPI_FADT_S4_RTC_WAKE match the ACPI spec; that bit has nothing to do with status bits. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'simplify_PRT' into releaseLen Brown2009-01-09
|\ | | | | | | | | | | | | | | | | | | | | 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>
| * ACPI: simplify buffer management for acpi_pci_bind() etc.Len Brown2008-12-30
| | | | | | | | | | | | | | | | | | | | 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>
* | Merge branch 'linus' into releaseLen Brown2009-01-09
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| * | trivial: fix an -> a typos in documentation and commentsFrederik Schwarzer2009-01-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is always "an" if there is a vowel _spoken_ (not written). So it is: "an hour" (spoken vowel) but "a uniform" (spoken 'j') Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_tRusty Russell2009-01-03
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Reduce memory usage, use new API. This is part of an effort to reduce structure sizes for machines configured with large NR_CPUS. cpumask_t gets replaced by cpumask_var_t, which is either struct cpumask[1] (small NR_CPUS) or struct cpumask * (large NR_CPUS). (Changes to powernow-k* by <travis>.) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Merge branch 'misc' into releaseLen Brown2009-01-09
|\ \ | | | | | | | | | | | | | | | | | | Conflicts: include/acpi/acpixf.h Signed-off-by: Len Brown <len.brown@intel.com>
| * | ACPI : Use RSDT instead of XSDT by adding boot option of "acpi=rsdt"Zhao Yakui2009-01-09
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On some boxes there exist both RSDT and XSDT table. But unfortunately sometimes there exists the following error when XSDT table is used: a. 32/64X address mismatch b. The 32/64X FACS address mismatch In such case the boot option of "acpi=rsdt" is provided so that RSDT is tried instead of XSDT table when the system can't work well. http://bugzilla.kernel.org/show_bug.cgi?id=8246 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> cc:Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: hide private headersLen Brown2009-01-09
| | | | | | | | Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: delete acdisasm.hLen Brown2009-01-08
| | | | | | | | | | | | | | it is referenced only #ifdef ACPI_DISASSEMBLER, which is never set by the kernel. Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Update version to 20081204.robert.moore@intel.com2008-12-31
| | | | | | | | | | | | Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: FADT: set acpi_gbl_use_default_register_widths to TRUE by defaultrobert.moore@intel.com2008-12-31
| | | | | | | | | | | | | | | | | | | | | | | | | | This returns the FADT support to the original behavior, which is to use default register widths. However, now check each register definition and report a warning if it differs from the default. This is a first step to moving away from the default widths, rather than outright believing the widths in all FADTs for all machines, considered rather dangerous until more data is obtained. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: FADT parsing changes and fixesBob Moore2008-12-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1) Update the register lengths for the PM1 event blocks. The length must be divided by two in order to use these to access the status registers. 2) Add run-time option to use default register lengths to override a faulty FADT. 3) Add warning message if any of the X64 address structures contain a length that does not match the legacy length earlier in the FADT. 4) Move all FADT warning messages into the ValidateFadt function. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Add ACPI_MUTEX_TYPE configuration optionBob Moore2008-12-31
| | | | | | | | | | | | | | | | | | Used to specify whether the OSL mutex interfaces should be used, or binary semaphores instead. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Fixes for various ACPI data tablesBob Moore2008-12-31
| | | | | | | | | | | | | | | | | | | | Eliminate extraneous "zero length subtable" messages. Fix subtable output for ERST, MCFG, EINJ tables. Implement all subtables for HEST. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Restructure includes into public/privateBob Moore2008-12-31
| | | | | | | | | | | | | | | | | | | | | | | | acpi.h now includes only the "public" acpica headers. All other acpica headers are "private" and should not be included by acpica users. One new file, accommon.h is used to include the commonly used private headers for acpica code generation. Future plans are to move all private headers to a new subdirectory. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: New: acpi_reset interface - write to reset registerBob Moore2008-12-31
| | | | | | | | | | | | | | | | | | | | | | Uses the FADT-defined reset register and reset value. Checks the FADT flags for the reset register supported bit. Supports reset register in memory or I/O space, but not in PCI config space since the host has the information to do it. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: New: acpi_read and acpi_write public interfacesBob Moore2008-12-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Changed the acpi_hw_low_level_read and acpi_hw_low_level_write functions to the public acpi_read and acpi_write to allow direct access to ACPI registers. Removed the "width" parameter since the width can be obtained from the input GAS structure. Updated the FADT initialization to setup the GAS structures with the proper widths. Some widths are still hardcoded because many FADTs have incorrect register lengths. Signed-off-by: Bob Moore <robert.moore@intel.com Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: New: Public GPE group enable/disable interfacesBob Moore2008-12-31
| | | | | | | | | | | | | | | | | | Added acpi_disable_all_gpes and acpi_enable_all_runtime_gpes for public use. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: New: acpi_get_gpe_device interfaceBob Moore2008-12-31
| | | | | | | | | | | | | | | | | | | | | | | | | | This function maps an input GPE index to a GPE block device. Also Added acpi_current_gpe_count to track the current number of GPEs that are being managed by the ACPICA core (both FADT-based GPEs and the GPEs contained in GPE block devices.) Modify drivers/acpi/system.c to use these 2 new interfaces Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPI: osl.c: replace return_ACPI_STATUS with returnLin Ming2008-12-31
| | | | | | | | | | | | | | | | return_ACPI_STATUS is an internal acpica function, replace it with return. acpi_gbl_permanent_mmap moved from acglobal.h to acpixf.h for external use Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Update version to 20081031Bob Moore2008-12-29
| | | | | | | | | | | | Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
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