1. 27 3月, 2009 1 次提交
  2. 09 1月, 2009 2 次提交
  3. 31 12月, 2008 1 次提交
  4. 30 12月, 2008 2 次提交
  5. 23 10月, 2008 1 次提交
  6. 17 7月, 2008 2 次提交
  7. 24 4月, 2008 1 次提交
  8. 23 4月, 2008 4 次提交
  9. 07 2月, 2008 1 次提交
    • T
      ACPI: track opregion names to avoid driver resource conflicts. · df92e695
      Thomas Renninger 提交于
      Small ACPICA extension to be able to store the name of operation regions in osl.c later
      
      In ACPI, AML can define accesses to IO ports and System Memory by Operation
      Regions.  Those are not registered as done by PNPACPI using resource templates
      (and _CRS/_SRS methods).
      
      The IO ports and System Memory regions may get accessed by arbitrary AML code.
       When native drivers are accessing the same resources bad things can happen
      (e.g.  a critical shutdown temperature of 3000 C every 2 months or so).
      
      It is not really possible to register the operation regions via
      request_resource, as they often overlap with pnp or other resources (e.g.
      statically setup IO resources below 0x100).
      
      This approach stores all Operation Region declarations (IO and System Memory
      only) at ACPI table parse time.  It offers a similar functionality like
      request_region and let drivers which are known to possibly use the same IO
      ports and Memory which are also often used by ACPI (hwmon and i2c) check for
      ACPI interference.
      
      A boot parameter acpi_enforce_resources=strict/lax/no is provided, which
      is default set to lax:
        - strict: let conflicting drivers fail to load with an error message
        - lax:    let conflicting driver work normal with a warning message
        - no:     no functional change at all
      Depending on the feedback and the kind of interferences we see, this
      should be set to strict at later time.
      
      Goal of this patch set is:
        - Identify ACPI interferences in bug reports (very hard to reproduce
          and to identify)
        - Find BIOSes for that an ACPI driver should exist for specific HW
          instead of a native one.
        - stability in general
      
      Provide acpi_check_{mem_}region.
      
      Drivers can additionally check against possible ACPI interference by also
      invoking this shortly before they call request_region.
      If -EBUSY is returned, the driver must not load.
      Use acpi_enforce_resources=strict/lax/no options to:
        - strict: let conflicting drivers fail to load with an error message
        - lax:    let conflicting driver work normal with a warning message
        - no:     no functional change at all
      
      Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
      Cc: Jean Delvare <khali@linux-fr.org>
      Cc: Len Brown <lenb@kernel.org>
      Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
      Signed-off-by: NThomas Renninger <trenn@suse.de>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLen Brown <len.brown@intel.com>
      df92e695
  10. 10 5月, 2007 1 次提交
  11. 03 2月, 2007 2 次提交
  12. 14 6月, 2006 1 次提交
    • 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
  13. 31 3月, 2006 1 次提交
  14. 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
  15. 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
  16. 05 8月, 2005 1 次提交
  17. 14 7月, 2005 1 次提交
    • R
      ACPICA 20050526 from Bob Moore <robert.moore@intel.com> · 88ac00f5
      Robert Moore 提交于
      Implemented support to execute Type 1 and Type 2 AML
      opcodes appearing at the module level (not within a control
      method.)  These opcodes are executed exactly once at the
      time the table is loaded. This type of code was legal up
      until the release of ACPI 2.0B (2002) and is now supported
      within ACPI CA in order to provide backwards compatibility
      with earlier BIOS implementations. This eliminates the
      "Encountered executable code at module level" warning that
      was previously generated upon detection of such code.
      
      Fixed a problem in the interpreter where an AE_NOT_FOUND
      exception could inadvertently be generated during the
      lookup of namespace objects in the second pass parse of
      ACPI tables and control methods. It appears that this
      problem could occur during the resolution of forward
      references to namespace objects.
      
      Added the ACPI_MUTEX_DEBUG #ifdef to the
      acpi_ut_release_mutex function, corresponding to the same
      the deadlock detection debug code to be compiled out in
      the normal case, improving mutex performance (and overall
      subsystem performance) considerably.  As suggested by
      Alexey Starikovskiy.
      
      Implemented a handful of miscellaneous fixes for possible
      memory leaks on error conditions and error handling
      control paths. These fixes were suggested by FreeBSD and
      the Coverity Prevent source code analysis tool.
      
      Added a check for a null RSDT pointer in
      acpi_get_firmware_table (tbxfroot.c) to prevent a fault
      in this error case.
      
      Signed-off-by Len Brown <len.brown@intel.com>
      88ac00f5
  18. 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
  19. 17 4月, 2005 1 次提交
    • L
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds 提交于
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4