1. 08 5月, 2013 1 次提交
  2. 25 1月, 2013 1 次提交
  3. 10 1月, 2013 4 次提交
  4. 15 11月, 2012 1 次提交
  5. 17 7月, 2012 1 次提交
  6. 17 1月, 2012 1 次提交
  7. 19 1月, 2011 1 次提交
  8. 18 11月, 2010 1 次提交
    • D
      x86, nmi_watchdog: Remove all stub function calls from old nmi_watchdog · 072b198a
      Don Zickus 提交于
      Now that the bulk of the old nmi_watchdog is gone, remove all
      the stub variables and hooks associated with it.
      
      This touches lots of files mainly because of how the io_apic
      nmi_watchdog was implemented.  Now that the io_apic nmi_watchdog
      is forever gone, remove all its fingers.
      
      Most of this code was not being exercised by virtue of
      nmi_watchdog != NMI_IO_APIC, so there shouldn't be anything to
      risky here.
      Signed-off-by: NDon Zickus <dzickus@redhat.com>
      Cc: fweisbec@gmail.com
      Cc: gorcunov@openvz.org
      LKML-Reference: <1289578944-28564-3-git-send-email-dzickus@redhat.com>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      072b198a
  9. 07 7月, 2010 3 次提交
  10. 12 6月, 2010 1 次提交
  11. 23 1月, 2010 1 次提交
  12. 25 11月, 2009 1 次提交
  13. 09 9月, 2009 1 次提交
  14. 28 3月, 2009 1 次提交
  15. 09 1月, 2009 2 次提交
  16. 31 12月, 2008 1 次提交
  17. 17 7月, 2008 1 次提交
  18. 24 4月, 2008 1 次提交
  19. 23 4月, 2008 1 次提交
  20. 10 5月, 2007 1 次提交
  21. 15 3月, 2007 1 次提交
  22. 13 2月, 2007 1 次提交
    • I
      [PATCH] x86: fix laptop bootup hang in init_acpi() · 5d0e600d
      Ingo Molnar 提交于
      During kernel bootup, a new T60 laptop (CoreDuo, 32-bit) hangs about
      10%-20% of the time in acpi_init():
      
       Calling initcall 0xc055ce1a: topology_init+0x0/0x2f()
       Calling initcall 0xc055d75e: mtrr_init_finialize+0x0/0x2c()
       Calling initcall 0xc05664f3: param_sysfs_init+0x0/0x175()
       Calling initcall 0xc014cb65: pm_sysrq_init+0x0/0x17()
       Calling initcall 0xc0569f99: init_bio+0x0/0xf4()
       Calling initcall 0xc056b865: genhd_device_init+0x0/0x50()
       Calling initcall 0xc056c4bd: fbmem_init+0x0/0x87()
       Calling initcall 0xc056dd74: acpi_init+0x0/0x1ee()
      
      It's a hard hang that not even an NMI could punch through!  Frustratingly,
      adding printks or function tracing to the ACPI code made the hangs go away
      ...
      
      After some time an additional detail emerged: disabling the NMI watchdog
      made these occasional hangs go away.
      
      So i spent the better part of today trying to debug this and trying out
      various theories when i finally found the likely reason for the hang: if
      acpi_ns_initialize_devices() executes an _INI AML method and an NMI
      happens to hit that AML execution in the wrong moment, the machine would
      hang.  (my theory is that this must be some sort of chipset setup method
      doing stores to chipset mmio registers?)
      
      Unfortunately given the characteristics of the hang it was sheer
      impossible to figure out which of the numerous AML methods is impacted
      by this problem.
      
      As a workaround i wrote an interface to disable chipset-based NMIs while
      executing _INI sections - and indeed this fixed the hang.  I did a
      boot-loop of 100 separate reboots and none hung - while without the patch
      it would hang every 5-10 attempts.  Out of caution i did not touch the
      nmi_watchdog=2 case (it's not related to the chipset anyway and didnt
      hang).
      
      I implemented this for both x86_64 and i686, tested the i686 laptop both
      with nmi_watchdog=1 [which triggered the hangs] and nmi_watchdog=2, and
      tested an Athlon64 box with the 64-bit kernel as well. Everything builds
      and works with the patch applied.
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      Signed-off-by: NAndi Kleen <ak@suse.de>
      Cc: Andi Kleen <ak@suse.de>
      Cc: Len Brown <lenb@kernel.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      5d0e600d
  23. 03 2月, 2007 2 次提交
  24. 14 6月, 2006 3 次提交
    • B
      ACPI: ACPICA 20060608 · 4c90ece2
      Bob Moore 提交于
      Converted the locking mutex used for the ACPI hardware
      to a spinlock. This change should eliminate all problems
      caused by attempting to acquire a semaphore at interrupt
      level, and it means that all ACPICA external interfaces
      that directly access the ACPI hardware can be safely
      called from interrupt level.
      
      Fixed a regression introduced in 20060526 where the ACPI
      device initialization could be prematurely aborted with
      an AE_NOT_FOUND if a device did not have an optional
      _INI method.
      
      Fixed an IndexField issue where a write to the Data
      Register should be limited in size to the AccessSize
      (width) of the IndexField itself. (BZ 433, Fiodor Suietov)
      
      Fixed problem reports (Valery Podrezov) integrated: - Allow
      store of ThermalZone objects to Debug object.
      http://bugzilla.kernel.org/show_bug.cgi?id=5369
      http://bugzilla.kernel.org/show_bug.cgi?id=5370
      
      Fixed problem reports (Fiodor Suietov) integrated: -
      acpi_get_table_header() doesn't handle multiple instances
      correctly (BZ 364)
      
      Removed four global mutexes that were obsolete and were
      no longer being used.
      Signed-off-by: NBob Moore <robert.moore@intel.com>
      Signed-off-by: NLen Brown <len.brown@intel.com>
      4c90ece2
    • B
      ACPI: ACPICA 20060526 · 4119532c
      Bob Moore 提交于
      Restructured, flattened, and simplified the internal
      interfaces for namespace object evaluation - resulting
      in smaller code, less CPU stack use, and fewer
      interfaces. (With assistance from Mikhail Kouzmich)
      
      Fixed a problem with the CopyObject operator where the
      first parameter was not typed correctly for the parser,
      interpreter, compiler, and disassembler. Caused various
      errors and unexpected behavior.
      
      Fixed a problem where a ShiftLeft or ShiftRight of
      more than 64 bits produced incorrect results with some
      C compilers. Since the behavior of C compilers when
      the shift value is larger than the datatype width is
      apparently not well defined, the interpreter now detects
      this condition and simply returns zero as expected in all
      such cases. (BZ 395)
      
      Fixed problem reports (Valery Podrezov) integrated: -
      Update String-to-Integer conversion to match ACPI 3.0A spec
      http://bugzilla.kernel.org/show_bug.cgi?id=5329
      Allow interpreter to handle nested method declarations
      http://bugzilla.kernel.org/show_bug.cgi?id=5361
      
      Fixed problem reports (Fiodor Suietov) integrated: -
      acpi_terminate() doesn't free debug memory allocation
      list objects (BZ 355) - After Core Subsystem
      shutdown, acpi_subsystem_status() returns AE_OK (BZ 356) -
      acpi_os_unmap_memory() for RSDP can be invoked inconsistently
      (BZ 357) - Resource Manager should return AE_TYPE for
      non-device objects (BZ 358) - Incomplete cleanup branch
      in AcpiNsEvaluateRelative (BZ 359) - Use acpi_os_free()
      instead of ACPI_FREE in acpi_rs_set_srs_method_data (BZ 360)
      - Incomplete cleanup branch in acpi_ps_parse_aml (BZ 361) -
      Incomplete cleanup branch in acpi_ds_delete_walk_state (BZ 362)
      - acpi_get_table_header returns AE_NO_ACPI_TABLES until DSDT
      is loaded (BZ 365) - Status of the Global Initialization
      Handler call not used (BZ 366) - Incorrect object parameter
      to Global Initialization Handler (BZ 367)
      Signed-off-by: NBob Moore <robert.moore@intel.com>
      Signed-off-by: NLen Brown <len.brown@intel.com>
      4119532c
    • B
      ACPI: ACPICA 20060421 · b229cf92
      Bob Moore 提交于
      Removed a device initialization optimization introduced in
      20051216 where the _STA method was not run unless an _INI
      was also present for the same device. This optimization
      could cause problems because it could allow _INI methods
      to be run within a not-present device subtree (If a
      not-present device had no _INI, _STA would not be run,
      the not-present status would not be discovered, and the
      children of the device would be incorrectly traversed.)
      
      Implemented a new _STA optimization where namespace
      subtrees that do not contain _INI are identified and
      ignored during device initialization. Selectively running
      _STA can significantly improve boot time on large machines
      (with assistance from Len Brown.)
      
      Implemented support for the device initialization case
      where the returned _STA flags indicate a device not-present
      but functioning. In this case, _INI is not run, but the
      device children are examined for presence, as per the
      ACPI specification.
      
      Implemented an additional change to the IndexField support
      in order to conform to MS behavior. The value written to
      the Index Register is not simply a byte offset, it is a
      byte offset in units of the access width of the parent
      Index Field. (Fiodor Suietov)
      
      Defined and deployed a new OSL interface,
      acpi_os_validate_address().  This interface is called during
      the creation of all AML operation regions, and allows
      the host OS to exert control over what addresses it will
      allow the AML code to access. Operation Regions whose
      addresses are disallowed will cause a runtime exception
      when they are actually accessed (will not affect or abort
      table loading.)
      
      Defined and deployed a new OSL interface,
      acpi_os_validate_interface().  This interface allows the host OS
      to match the various "optional" interface/behavior strings
      for the _OSI predefined control method as appropriate
      (with assistance from Bjorn Helgaas.)
      
      Restructured and corrected various problems in the
      exception handling code paths within DsCallControlMethod
      and DsTerminateControlMethod in dsmethod (with assistance
      from Takayoshi Kochi.)
      
      Modified the Linux source converter to ignore quoted string
      literals while converting identifiers from mixed to lower
      case. This will correct problems with the disassembler
      and other areas where such strings must not be modified.
      
      The ACPI_FUNCTION_* macros no longer require quotes around
      the function name. This allows the Linux source converter
      to convert the names, now that the converter ignores
      quoted strings.
      Signed-off-by: NBob Moore <robert.moore@intel.com>
      Signed-off-by: NLen Brown <len.brown@intel.com>
      b229cf92
  25. 01 4月, 2006 1 次提交
    • B
      ACPI: ACPICA 20060310 · 8313524a
      Bob Moore 提交于
      Tagged all external interfaces to the subsystem with the
      new ACPI_EXPORT_SYMBOL macro. This macro can be defined
      as necessary to assist kernel integration. For Linux,
      the macro resolves to the EXPORT_SYMBOL macro. The default
      definition is NULL.
      
      Added the ACPI_THREAD_ID type for the return value from
      acpi_os_get_thread_id(). This allows the host to define this
      as necessary to simplify kernel integration. The default
      definition is ACPI_NATIVE_UINT.
      
      Valery Podrezov fixed two interpreter problems related
      to error processing, the deletion of objects, and placing
      invalid pointers onto the internal operator result stack.
      http://bugzilla.kernel.org/show_bug.cgi?id=6028
      http://bugzilla.kernel.org/show_bug.cgi?id=6151
      
      Increased the reference count threshold where a warning is
      emitted for large reference counts in order to eliminate
      unnecessary warnings on systems with large namespaces
      (especially 64-bit.) Increased the value from 0x400
      to 0x800.
      
      Due to universal disagreement as to the meaning of the
      'c' in the calloc() function, the ACPI_MEM_CALLOCATE
      macro has been renamed to ACPI_ALLOCATE_ZEROED so that the
      purpose of the interface is 'clear'. ACPI_MEM_ALLOCATE and
      ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and ACPI_FREE.
      Signed-off-by: NBob Moore <robert.moore@intel.com>
      Signed-off-by: NLen Brown <len.brown@intel.com>
      8313524a
  26. 31 3月, 2006 1 次提交
  27. 31 1月, 2006 1 次提交
    • B
      [ACPI] ACPICA 20060127 · b8e4d893
      Bob Moore 提交于
      Implemented support in the Resource Manager to allow
      unresolved namestring references within resource package
      objects for the _PRT method. This support is in addition
      to the previously implemented unresolved reference
      support within the AML parser. If the interpreter slack
      mode is enabled (true on Linux unless acpi=strict),
      these unresolved references will be passed through
      to the caller as a NULL package entry.
      http://bugzilla.kernel.org/show_bug.cgi?id=5741
      
      Implemented and deployed new macros and functions for
      error and warning messages across the subsystem. These
      macros are simpler and generate less code than their
      predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION,
      ACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_*
      macros.
      
      Implemented the acpi_cpu_flags type to simplify host OS
      integration of the Acquire/Release Lock OSL interfaces.
      Suggested by Steven Rostedt and Andrew Morton.
      
      Fixed a problem where Alias ASL operators are sometimes
      not correctly resolved. causing AE_AML_INTERNAL
      http://bugzilla.kernel.org/show_bug.cgi?id=5189
      http://bugzilla.kernel.org/show_bug.cgi?id=5674
      
      Fixed several problems with the implementation of the
      ConcatenateResTemplate ASL operator. As per the ACPI
      specification, zero length buffers are now treated as a
      single EndTag. One-length buffers always cause a fatal
      exception. Non-zero length buffers that do not end with
      a full 2-byte EndTag cause a fatal exception.
      
      Fixed a possible structure overwrite in the
      AcpiGetObjectInfo external interface. (With assistance
      from Thomas Renninger)
      Signed-off-by: NBob Moore <robert.moore@intel.com>
      Signed-off-by: NLen Brown <len.brown@intel.com>
      b8e4d893
  28. 20 1月, 2006 1 次提交
    • B
      [ACPI] ACPICA 20060113 · 4a90c7e8
      Bob Moore 提交于
      Added 2006 copyright.
      
      At SuSE's suggestion, enabled all error messages
      without enabling function tracing, ie with CONFIG_ACPI_DEBUG=n
      
      Replaced all instances of the ACPI_DEBUG_PRINT macro invoked at
      the ACPI_DB_ERROR and ACPI_DB_WARN debug levels with
      the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros,
      respectively. This preserves all error and warning messages
      in the non-debug version of the ACPICA code (this has been
      referred to as the "debug lite" option.) Over 200 cases
      were converted to create a total of over 380 error/warning
      messages across the ACPICA code. This increases the code
      and data size of the default non-debug version by about 13K.
      Added ACPI_NO_ERROR_MESSAGES flag to enable deleting all messages.
      The size of the debug version remains about the same.
      Signed-off-by: NBob Moore <robert.moore@intel.com>
      Signed-off-by: NLen Brown <len.brown@intel.com>
      4a90c7e8
  29. 28 12月, 2005 1 次提交
    • B
      [ACPI] ACPICA 20051216 · defba1d8
      Bob Moore 提交于
      Implemented optional support to allow unresolved names
      within ASL Package objects. A null object is inserted in
      the package when a named reference cannot be located in
      the current namespace. Enabled via the interpreter slack
      flag which Linux has enabled by default (acpi=strict
      to disable slack).  This should eliminate AE_NOT_FOUND
      exceptions seen on machines that contain such code.
      
      Implemented an optimization to the initialization
      sequence that can improve boot time. During ACPI device
      initialization, the _STA method is now run if and only
      if the _INI method exists. The _STA method is used to
      determine if the device is present; An _INI can only be
      run if _STA returns present, but it is a waste of time to
      run the _STA method if the _INI does not exist. (Prototype
      and assistance from Dong Wei)
      
      Implemented use of the C99 uintptr_t for the pointer
      casting macros if it is available in the current
      compiler. Otherwise, the default (void *) cast is used
      as before.
      
      Fixed some possible memory leaks found within the
      execution path of the Break, Continue, If, and CreateField
      operators. (Valery Podrezov)
      
      Fixed a problem introduced in the 20051202 release where
      an exception is generated during method execution if a
      control method attempts to declare another method.
      Signed-off-by: NBob Moore <robert.moore@intel.com>
      Signed-off-by: NLen Brown <len.brown@intel.com>
      defba1d8
  30. 05 8月, 2005 1 次提交
  31. 12 7月, 2005 1 次提交
    • R
      ACPICA 20050408 from Bob Moore · 44f6c012
      Robert Moore 提交于
      Fixed three cases in the interpreter where an "index"
      argument to an ASL function was still (internally) 32
      bits instead of the required 64 bits.  This was the Index
      argument to the Index, Mid, and Match operators.
      
      The "strupr" function is now permanently local
      (acpi_ut_strupr), since this is not a POSIX-defined
      function and not present in most kernel-level C
      libraries. References to the C library strupr function
      have been removed from the headers.
      
      Completed the deployment of static
      functions/prototypes. All prototypes with the static
      attribute have been moved from the headers to the owning
      C file.
      
      ACPICA 20050329 from Bob Moore
      
      An error is now generated if an attempt is made to create
      a Buffer Field of length zero (A CreateField with a length
      operand of zero.)
      
      The interpreter now issues a warning whenever executable
      code at the module level is detected during ACPI table
      load. This will give some idea of the prevalence of this
      type of code.
      
      Implemented support for references to named objects (other
      than control methods) within package objects.
      
      Enhanced package object output for the debug
      object. Package objects are now completely dumped, showing
      all elements.
      
      Enhanced miscellaneous object output for the debug
      object. Any object can now be written to the debug object
      (for example, a device object can be written, and the type
      of the object will be displayed.)
      
      The "static" qualifier has been added to all local
      functions across the core subsystem.
      
      The number of "long" lines (> 80 chars) within the source
      has been significantly reduced, by about 1/3.
      
      Cleaned up all header files to ensure that all CA/iASL
      functions are prototyped (even static functions) and the
      formatting is consistent.
      
      Two new header files have been added, acopcode.h and
      acnames.h.
      
      Removed several obsolete functions that were no longer
      used.
      Signed-off-by: NLen Brown <len.brown@intel.com>
      44f6c012