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* Revert "ACPI: ignore FADT reset-reg-sup flag"Linus Torvalds2012-04-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit cf450136bfde77c7f95065c91bffded4aa7fa731. It breaks reboot on at least one Thinkpad T43, as reported by Jörg Otte: "On reboot it shuts down as normal. The last lines displayed are: >Unmounting temporary filesystems.. [OK] >Deactivating swap... [OK] >Unmounting local filesystems... [OK] >Will now restart > Restarting system Then I hear it accessing the cd-drive, but then it's being stuck." Jörg bisected the regression to this commit. That commit fixes another machine (see https://bugzilla.kernel.org/show_bug.cgi?id=11533 for details) that has a BIOS bug and doesn't support ACPI reset. However, at least one of those other reporters no longer even has the machine in question, and had a different workaround to begin with. Besides, it clearly was a buggy BIOS. Let's not break the correct case to fix that case. Reported-and-bisected-by: Jörg Otte <jrg.otte@googlemail.com> Cc: linux-acpi@vger.kernel.org Cc: Len Brown <lenb@kernel.org> Cc: Peter Anvin <hpa@zytor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
*-. Merge branches 'acpica', 'bgrt', 'bz-11533', 'cpuidle', 'ec', 'hotplug', ↵Len Brown2012-03-301-2/+1
|\ \ | | | | | | | | | | | | | | | 'misc', 'red-hat-bz-727865', 'thermal', 'throttling', 'turbostat' and 'video' into release Signed-off-by: Len Brown <len.brown@intel.com>
| | * ACPI: ignore FADT reset-reg-sup flagLen Brown2012-03-211-2/+1
| |/ | | | | | | | | | | | | | | we check that the address is non-zero later anyway. https://bugzilla.kernel.org/show_bug.cgi?id=11533 Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: Expand OSL memory read/write interfaces to 64 bitsBob Moore2012-03-221-33/+11
| | | | | | | | | | | | | | | | | | | | | | | | This change expands acpi_os_read_memory and acpi_os_write_memory to a full 64 bits. This allows 64 bit transfers via the acpi_read and acpi_write interfaces. Note: The internal acpi_hw_read and acpi_hw_write interfaces remain at 32 bits, because 64 bits is not needed to access the standard ACPI 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: Support for custom ACPICA build for ACPI 5 reduced hardwareBob Moore2012-03-221-1/+2
|/ | | | | | | | | Add ACPI_REDUCED_HARDWARE flag that removes all hardware-related code (about 10% code, 5% static data). 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>
* Merge branch 'release' of ↵Linus Torvalds2012-01-181-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux This includes initial support for the recently published ACPI 5.0 spec. In particular, support for the "hardware-reduced" bit that eliminates the dependency on legacy hardware. APEI has patches resulting from testing on real hardware. Plus other random fixes. * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (52 commits) acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec intel_idle: Split up and provide per CPU initialization func ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2 ACPI processor: Remove unneeded cpuidle_unregister_driver call intel idle: Make idle driver more robust intel_idle: Fix a cast to pointer from integer of different size warning in intel_idle ACPI: kernel-parameters.txt : Add intel_idle.max_cstate intel_idle: remove redundant local_irq_disable() call ACPI processor: Fix error path, also remove sysdev link ACPI: processor: fix acpi_get_cpuid for UP processor intel_idle: fix API misuse ACPI APEI: Convert atomicio routines ACPI: Export interfaces for ioremapping/iounmapping ACPI registers ACPI: Fix possible alignment issues with GAS 'address' references ACPI, ia64: Use SRAT table rev to use 8bit or 16/32bit PXM fields (ia64) ACPI, x86: Use SRAT table rev to use 8bit or 32bit PXM fields (x86/x86-64) ACPI: Store SRAT table revision ACPI, APEI, Resolve false conflict between ACPI NVS and APEI ACPI, Record ACPI NVS regions ACPI, APEI, EINJ, Refine the fix of resource conflict ...
| * ACPICA: Update all copyrights to 2012Bob Moore2012-01-171-1/+1
| | | | | | | | | | | | | | | | Update all copyrights to 2012. 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>
* | treewide: Fix typos in various parts of the kernel, and fix some comments.Justin P. Mattock2011-12-021-1/+1
|/ | | | | | | | | The below patch fixes some typos in various parts of the kernel, as well as fixes some comments. Please let me know if I missed anything, and I will try to get it changed and resent. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOLPaul Gortmaker2011-10-311-0/+1
| | | | | | | | | These files were relying on module.h to come in via the path in an include/acpi header file, but we don't want to have instances of module.h being included from include/* files if it can be avoided. Have the files include export.h instead. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* ACPICA: Fix access width for reset vectorMatthew Garrett2011-03-221-5/+5
| | | | | | | | | | Section 4.7.3.6 of the ACPI specification requires that the register width of the reset vector be 8 bits. Windows simply hardcodes the access to be a byte and ignores the width provided in the FADT, so make sure that we do the same. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPICA: Update all ACPICA copyrights and signons to 2011Bob Moore2011-01-181-1/+1
| | | | | | 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 all ACPICA copyrights and signons to 2010Bob Moore2010-01-221-1/+1
| | | | | | | | | | Add 2010 copyright to all module headers and signons, including the Linux header. This affects virtually every file in the ACPICA core subsystem, iASL compiler, and all utilities. 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: acpi_reset: Bypass port validation mechanismBob Moore2009-08-281-2/+15
| | | | | | | | | Allow writes to reserved ports. This change may eventually be driven down in to acpi_write and acpi_read. 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 64-bit support to acpi_read and acpi_writeBob Moore2009-08-271-67/+99
| | | | | | | | | | | Needed by drivers for new ACPi tables. Internal versions of these functions still use 32-bit max transfers, in order to minimize disruption and stack use for the standard ACPI registers (FADT-based). 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: I/O port protectionBob Moore2009-03-271-2/+2
| | | | | | | | | Protect certain I/O ports from reads/writes. Provides MS compatibility. New module, hwvalid.c 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: Formatting update - no functional changesBob Moore2009-03-271-1/+2
| | | | | | | | Split long lines, update comments. 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 bit register access functionsBob Moore2009-03-261-115/+62
| | | | | | | | | Update code for acpi_read_bit_register and acpi_write_bit_register. Simplified code path, condensed duplicate code. 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 Moore2009-03-261-8/+8
| | | | | | | | | | 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 Moore2009-03-261-38/+27
| | | | | | | | | | | | | | 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: Remove ACPI_GET_OBJECT_TYPE macroBob Moore2009-03-261-3/+3
| | | | | | | | | | | | Remove all instances of this obsolete macro, since it is now a simple reference to ->common.type. There were about 150 invocations of the macro across 41 files. ACPICA BZ 755. http://www.acpica.org/bugzilla/show_bug.cgi?id=755 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 Moore2009-03-261-10/+8
| | | | | | | | | | | | | | 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: hide private headersLen Brown2009-01-091-2/+2
| | | | Signed-off-by: Len Brown <len.brown@intel.com>
* ACPICA: create acpica/ directoryLen Brown2009-01-091-0/+593
also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown <len.brown@intel.com>
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