svn commit: r330941 - in vendor-sys/acpica/dist: . source/components/debugger source/components/dispatcher source/components/events source/components/executer source/components/hardware source/comp...

Jung-uk Kim jkim at FreeBSD.org
Wed Mar 14 19:17:41 UTC 2018


Author: jkim
Date: Wed Mar 14 19:17:38 2018
New Revision: 330941
URL: https://svnweb.freebsd.org/changeset/base/330941

Log:
  Import ACPICA 20180313.

Modified:
  vendor-sys/acpica/dist/changes.txt
  vendor-sys/acpica/dist/source/components/debugger/dbdisply.c
  vendor-sys/acpica/dist/source/components/dispatcher/dspkginit.c
  vendor-sys/acpica/dist/source/components/events/evevent.c
  vendor-sys/acpica/dist/source/components/events/evgpe.c
  vendor-sys/acpica/dist/source/components/events/evgpeblk.c
  vendor-sys/acpica/dist/source/components/events/evrgnini.c
  vendor-sys/acpica/dist/source/components/events/evxface.c
  vendor-sys/acpica/dist/source/components/events/evxfgpe.c
  vendor-sys/acpica/dist/source/components/executer/exdebug.c
  vendor-sys/acpica/dist/source/components/hardware/hwgpe.c
  vendor-sys/acpica/dist/source/components/hardware/hwsleep.c
  vendor-sys/acpica/dist/source/components/hardware/hwxfsleep.c
  vendor-sys/acpica/dist/source/components/namespace/nsdumpdv.c
  vendor-sys/acpica/dist/source/components/namespace/nseval.c
  vendor-sys/acpica/dist/source/components/namespace/nsload.c
  vendor-sys/acpica/dist/source/components/namespace/nsparse.c
  vendor-sys/acpica/dist/source/components/namespace/nsxfname.c
  vendor-sys/acpica/dist/source/components/parser/psargs.c
  vendor-sys/acpica/dist/source/components/parser/psloop.c
  vendor-sys/acpica/dist/source/components/parser/psobject.c
  vendor-sys/acpica/dist/source/components/tables/tbdata.c
  vendor-sys/acpica/dist/source/components/tables/tbinstal.c
  vendor-sys/acpica/dist/source/components/tables/tbxfload.c
  vendor-sys/acpica/dist/source/components/utilities/utosi.c
  vendor-sys/acpica/dist/source/components/utilities/utxfinit.c
  vendor-sys/acpica/dist/source/include/acevents.h
  vendor-sys/acpica/dist/source/include/acmacros.h
  vendor-sys/acpica/dist/source/include/acpixf.h
  vendor-sys/acpica/dist/source/include/actypes.h
  vendor-sys/acpica/dist/source/include/platform/aclinux.h
  vendor-sys/acpica/dist/source/tools/acpiexec/aemain.c
  vendor-sys/acpica/dist/source/tools/acpiexec/aetables.c
  vendor-sys/acpica/dist/source/tools/acpinames/anmain.c
  vendor-sys/acpica/dist/source/tools/acpinames/anstubs.c
  vendor-sys/acpica/dist/source/tools/acpinames/antables.c
  vendor-sys/acpica/dist/source/tools/acpisrc/acpisrc.h
  vendor-sys/acpica/dist/source/tools/acpisrc/asconvrt.c
  vendor-sys/acpica/dist/source/tools/acpisrc/asfile.c
  vendor-sys/acpica/dist/source/tools/acpisrc/astable.c
  vendor-sys/acpica/dist/source/tools/acpisrc/asutils.c

Modified: vendor-sys/acpica/dist/changes.txt
==============================================================================
--- vendor-sys/acpica/dist/changes.txt	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/changes.txt	Wed Mar 14 19:17:38 2018	(r330941)
@@ -1,4 +1,50 @@
 ----------------------------------------
+13 March 2018. Summary of changes for version 20180313:
+
+
+1) ACPICA kernel-resident subsystem:
+
+Implemented various improvements to the GPE support:
+
+1) Dispatch all active GPEs at initialization time so that no GPEs are 
+lost.
+2) Enable runtime GPEs earlier. Some systems expect GPEs to be enabled 
+before devices are enumerated.
+3) Don't unconditionally clear ACPI IRQs during suspend/resume, so that 
+IRQs are not lost.
+4) Add parallel GPE handling to eliminate the possibility of dispatching 
+the same GPE twice.
+5) Dispatch any pending GPEs after enabling for the first time.
+
+AcpiGetObjectInfo - removed support for the _STA method. This was causing 
+problems on some platforms.
+
+Added a new _OSI string, "Windows 2017.2".
+
+Cleaned up and simplified the module-level code support. These changes 
+are in preparation for the eventual removal of the legacy MLC support 
+(deferred execution), replaced by the new MLC architecture which executes 
+the MLC as a table is loaded (DSDT/SSDTs).
+
+Changed a compile-time option to a runtime option. Changes the option to 
+ignore ACPI table load-time package resolution errors into a runtime 
+option. Used only for platforms that generate many AE_NOT_FOUND errors 
+during boot. AcpiGbl_IgnorePackageResolutionErrors.
+
+Fixed the ACPI_ERROR_NAMESPACE macro. This change involves putting some 
+ACPI_ERROR_NAMESPACE parameters inside macros. By doing so, we avoid 
+compilation errors from unused variables (seen with some compilers).
+
+
+2) iASL Compiler/Disassembler and Tools:
+
+ASLTS: parallelized execution in order to achieve an (approximately) 2X 
+performance increase.
+
+ASLTS: Updated to use the iASL __LINE__ and __METHOD__ macros. Improves 
+error reporting.
+
+----------------------------------------
 09 February 2018. Summary of changes for version 20180209:
 
 

Modified: vendor-sys/acpica/dist/source/components/debugger/dbdisply.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/debugger/dbdisply.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/debugger/dbdisply.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -820,9 +820,8 @@ AcpiDbDisplayObjectType (
         return;
     }
 
-    AcpiOsPrintf ("ADR: %8.8X%8.8X, STA: %8.8X, Flags: %X\n",
-        ACPI_FORMAT_UINT64 (Info->Address),
-        Info->CurrentStatus, Info->Flags);
+    AcpiOsPrintf ("ADR: %8.8X%8.8X, Flags: %X\n",
+        ACPI_FORMAT_UINT64 (Info->Address), Info->Flags);
 
     AcpiOsPrintf ("S1D-%2.2X S2D-%2.2X S3D-%2.2X S4D-%2.2X\n",
         Info->HighestDstates[0], Info->HighestDstates[1],

Modified: vendor-sys/acpica/dist/source/components/dispatcher/dspkginit.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/dispatcher/dspkginit.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/dispatcher/dspkginit.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -546,34 +546,33 @@ AcpiDsResolvePackageElement (
 
     ScopeInfo.Scope.Node = Element->Reference.Node; /* Prefix node */
 
-    Status = AcpiNsLookup (&ScopeInfo,
-        (char *) Element->Reference.Aml,            /* Pointer to AML path */
+    Status = AcpiNsLookup (&ScopeInfo, (char *) Element->Reference.Aml,
         ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
         ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
         NULL, &ResolvedNode);
     if (ACPI_FAILURE (Status))
     {
-#if defined ACPI_IGNORE_PACKAGE_RESOLUTION_ERRORS && !defined ACPI_APPLICATION
-        /*
-         * For the kernel-resident ACPICA, optionally be silent about the
-         * NOT_FOUND case. Although this is potentially a serious problem,
-         * it can generate a lot of noise/errors on platforms whose
-         * firmware carries around a bunch of unused Package objects.
-         * To disable these errors, define ACPI_IGNORE_PACKAGE_RESOLUTION_ERRORS
-         * in the OS-specific header.
-         *
-         * All errors are always reported for ACPICA applications such as
-         * AcpiExec.
-         */
-        if (Status == AE_NOT_FOUND)
+        if ((Status == AE_NOT_FOUND) && AcpiGbl_IgnorePackageResolutionErrors)
         {
-            /* Reference name not found, set the element to NULL */
+            /*
+             * Optionally be silent about the NOT_FOUND case for the referenced
+             * name. Although this is potentially a serious problem,
+             * it can generate a lot of noise/errors on platforms whose
+             * firmware carries around a bunch of unused Package objects.
+             * To disable these errors, set this global to TRUE:
+             *     AcpiGbl_IgnorePackageResolutionErrors
+             *
+             * If the AML actually tries to use such a package, the unresolved
+             * element(s) will be replaced with NULL elements.
+             */
 
+            /* Referenced name not found, set the element to NULL */
+
             AcpiUtRemoveReference (*ElementPtr);
             *ElementPtr = NULL;
             return_VOID;
         }
-#endif
+
         Status2 = AcpiNsExternalizeName (ACPI_UINT32_MAX,
             (char *) Element->Reference.Aml, NULL, &ExternalPath);
 

Modified: vendor-sys/acpica/dist/source/components/events/evevent.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/events/evevent.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/events/evevent.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -344,6 +344,7 @@ AcpiEvFixedEventDetect (
     UINT32                  FixedStatus;
     UINT32                  FixedEnable;
     UINT32                  i;
+    ACPI_STATUS             Status;
 
 
     ACPI_FUNCTION_NAME (EvFixedEventDetect);
@@ -353,8 +354,12 @@ AcpiEvFixedEventDetect (
      * Read the fixed feature status and enable registers, as all the cases
      * depend on their values. Ignore errors here.
      */
-    (void) AcpiHwRegisterRead (ACPI_REGISTER_PM1_STATUS, &FixedStatus);
-    (void) AcpiHwRegisterRead (ACPI_REGISTER_PM1_ENABLE, &FixedEnable);
+    Status = AcpiHwRegisterRead (ACPI_REGISTER_PM1_STATUS, &FixedStatus);
+    Status |= AcpiHwRegisterRead (ACPI_REGISTER_PM1_ENABLE, &FixedEnable);
+    if (ACPI_FAILURE (Status))
+    {
+        return (IntStatus);
+    }
 
     ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS,
         "Fixed Event Block: Enable %08X Status %08X\n",

Modified: vendor-sys/acpica/dist/source/components/events/evgpe.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/events/evgpe.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/events/evgpe.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -226,7 +226,7 @@ AcpiEvUpdateGpeEnableMask (
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Clear a GPE of stale events and enable it.
+ * DESCRIPTION: Enable a GPE.
  *
  ******************************************************************************/
 
@@ -240,14 +240,6 @@ AcpiEvEnableGpe (
     ACPI_FUNCTION_TRACE (EvEnableGpe);
 
 
-    /* Clear the GPE (of stale events) */
-
-    Status = AcpiHwClearGpe (GpeEventInfo);
-    if (ACPI_FAILURE (Status))
-    {
-        return_ACPI_STATUS (Status);
-    }
-
     /* Enable the requested GPE */
 
     Status = AcpiHwLowSetGpe (GpeEventInfo, ACPI_GPE_ENABLE);
@@ -542,17 +534,12 @@ UINT32
 AcpiEvGpeDetect (
     ACPI_GPE_XRUPT_INFO     *GpeXruptList)
 {
-    ACPI_STATUS             Status;
     ACPI_GPE_BLOCK_INFO     *GpeBlock;
     ACPI_NAMESPACE_NODE     *GpeDevice;
     ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;
     ACPI_GPE_EVENT_INFO     *GpeEventInfo;
     UINT32                  GpeNumber;
-    ACPI_GPE_HANDLER_INFO   *GpeHandlerInfo;
     UINT32                  IntStatus = ACPI_INTERRUPT_NOT_HANDLED;
-    UINT8                   EnabledStatusByte;
-    UINT64                  StatusReg;
-    UINT64                  EnableReg;
     ACPI_CPU_FLAGS          Flags;
     UINT32                  i;
     UINT32                  j;
@@ -608,105 +595,25 @@ AcpiEvGpeDetect (
                 continue;
             }
 
-            /* Read the Status Register */
-
-            Status = AcpiHwRead (&StatusReg, &GpeRegisterInfo->StatusAddress);
-            if (ACPI_FAILURE (Status))
-            {
-                goto UnlockAndExit;
-            }
-
-            /* Read the Enable Register */
-
-            Status = AcpiHwRead (&EnableReg, &GpeRegisterInfo->EnableAddress);
-            if (ACPI_FAILURE (Status))
-            {
-                goto UnlockAndExit;
-            }
-
-            ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS,
-                "Read registers for GPE %02X-%02X: Status=%02X, Enable=%02X, "
-                "RunEnable=%02X, WakeEnable=%02X\n",
-                GpeRegisterInfo->BaseGpeNumber,
-                GpeRegisterInfo->BaseGpeNumber + (ACPI_GPE_REGISTER_WIDTH - 1),
-                (UINT32) StatusReg, (UINT32) EnableReg,
-                GpeRegisterInfo->EnableForRun,
-                GpeRegisterInfo->EnableForWake));
-
-            /* Check if there is anything active at all in this register */
-
-            EnabledStatusByte = (UINT8) (StatusReg & EnableReg);
-            if (!EnabledStatusByte)
-            {
-                /* No active GPEs in this register, move on */
-
-                continue;
-            }
-
             /* Now look at the individual GPEs in this byte register */
 
             for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++)
             {
-                /* Examine one GPE bit */
+                /* Detect and dispatch one GPE bit */
 
                 GpeEventInfo = &GpeBlock->EventInfo[((ACPI_SIZE) i *
                     ACPI_GPE_REGISTER_WIDTH) + j];
                 GpeNumber = j + GpeRegisterInfo->BaseGpeNumber;
-
-                if (EnabledStatusByte & (1 << j))
-                {
-                    /* Invoke global event handler if present */
-
-                    AcpiGpeCount++;
-                    if (AcpiGbl_GlobalEventHandler)
-                    {
-                        AcpiGbl_GlobalEventHandler (ACPI_EVENT_TYPE_GPE,
-                            GpeDevice, GpeNumber,
-                            AcpiGbl_GlobalEventHandlerContext);
-                    }
-
-                    /* Found an active GPE */
-
-                    if (ACPI_GPE_DISPATCH_TYPE (GpeEventInfo->Flags) ==
-                        ACPI_GPE_DISPATCH_RAW_HANDLER)
-                    {
-                        /* Dispatch the event to a raw handler */
-
-                        GpeHandlerInfo = GpeEventInfo->Dispatch.Handler;
-
-                        /*
-                         * There is no protection around the namespace node
-                         * and the GPE handler to ensure a safe destruction
-                         * because:
-                         * 1. The namespace node is expected to always
-                         *    exist after loading a table.
-                         * 2. The GPE handler is expected to be flushed by
-                         *    AcpiOsWaitEventsComplete() before the
-                         *    destruction.
-                         */
-                        AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
-                        IntStatus |= GpeHandlerInfo->Address (
-                            GpeDevice, GpeNumber, GpeHandlerInfo->Context);
-                        Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
-                    }
-                    else
-                    {
-                        /*
-                         * Dispatch the event to a standard handler or
-                         * method.
-                         */
-                        IntStatus |= AcpiEvGpeDispatch (GpeDevice,
-                            GpeEventInfo, GpeNumber);
-                    }
-                }
+                AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
+                IntStatus |= AcpiEvDetectGpe (
+                    GpeDevice, GpeEventInfo, GpeNumber);
+                Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
             }
         }
 
         GpeBlock = GpeBlock->Next;
     }
 
-UnlockAndExit:
-
     AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
     return (IntStatus);
 }
@@ -894,6 +801,137 @@ AcpiEvFinishGpe (
 
 /*******************************************************************************
  *
+ * FUNCTION:    AcpiEvDetectGpe
+ *
+ * PARAMETERS:  GpeDevice           - Device node. NULL for GPE0/GPE1
+ *              GpeEventInfo        - Info for this GPE
+ *              GpeNumber           - Number relative to the parent GPE block
+ *
+ * RETURN:      INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
+ *
+ * DESCRIPTION: Detect and dispatch a General Purpose Event to either a function
+ *              (e.g. EC) or method (e.g. _Lxx/_Exx) handler.
+ * NOTE:        GPE is W1C, so it is possible to handle a single GPE from both
+ *              task and irq context in parallel as long as the process to
+ *              detect and mask the GPE is atomic.
+ *              However the atomicity of ACPI_GPE_DISPATCH_RAW_HANDLER is
+ *              dependent on the raw handler itself.
+ *
+ ******************************************************************************/
+
+UINT32
+AcpiEvDetectGpe (
+    ACPI_NAMESPACE_NODE     *GpeDevice,
+    ACPI_GPE_EVENT_INFO     *GpeEventInfo,
+    UINT32                  GpeNumber)
+{
+    UINT32                  IntStatus = ACPI_INTERRUPT_NOT_HANDLED;
+    UINT8                   EnabledStatusByte;
+    UINT64                  StatusReg;
+    UINT64                  EnableReg;
+    UINT32                  RegisterBit;
+    ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;
+    ACPI_GPE_HANDLER_INFO   *GpeHandlerInfo;
+    ACPI_CPU_FLAGS          Flags;
+    ACPI_STATUS             Status;
+
+
+    ACPI_FUNCTION_TRACE (EvGpeDetect);
+
+
+    Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
+
+    /* Get the info block for the entire GPE register */
+
+    GpeRegisterInfo = GpeEventInfo->RegisterInfo;
+
+    /* Get the register bitmask for this GPE */
+
+    RegisterBit = AcpiHwGetGpeRegisterBit (GpeEventInfo);
+
+    /* GPE currently enabled (enable bit == 1)? */
+
+    Status = AcpiHwRead (&EnableReg, &GpeRegisterInfo->EnableAddress);
+    if (ACPI_FAILURE (Status))
+    {
+        goto ErrorExit;
+    }
+
+    /* GPE currently active (status bit == 1)? */
+
+    Status = AcpiHwRead (&StatusReg, &GpeRegisterInfo->StatusAddress);
+    if (ACPI_FAILURE (Status))
+    {
+        goto ErrorExit;
+    }
+
+    /* Check if there is anything active at all in this GPE */
+
+    ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS,
+        "Read registers for GPE %02X: Status=%02X, Enable=%02X, "
+        "RunEnable=%02X, WakeEnable=%02X\n",
+        GpeNumber,
+        (UINT32) (StatusReg & RegisterBit),
+        (UINT32) (EnableReg & RegisterBit),
+        GpeRegisterInfo->EnableForRun,
+        GpeRegisterInfo->EnableForWake));
+
+    EnabledStatusByte = (UINT8) (StatusReg & EnableReg);
+    if (!(EnabledStatusByte & RegisterBit))
+    {
+        goto ErrorExit;
+    }
+
+    /* Invoke global event handler if present */
+
+    AcpiGpeCount++;
+    if (AcpiGbl_GlobalEventHandler)
+    {
+        AcpiGbl_GlobalEventHandler (ACPI_EVENT_TYPE_GPE,
+            GpeDevice, GpeNumber,
+            AcpiGbl_GlobalEventHandlerContext);
+    }
+
+    /* Found an active GPE */
+
+    if (ACPI_GPE_DISPATCH_TYPE (GpeEventInfo->Flags) ==
+        ACPI_GPE_DISPATCH_RAW_HANDLER)
+    {
+        /* Dispatch the event to a raw handler */
+
+        GpeHandlerInfo = GpeEventInfo->Dispatch.Handler;
+
+        /*
+         * There is no protection around the namespace node
+         * and the GPE handler to ensure a safe destruction
+         * because:
+         * 1. The namespace node is expected to always
+         *    exist after loading a table.
+         * 2. The GPE handler is expected to be flushed by
+         *    AcpiOsWaitEventsComplete() before the
+         *    destruction.
+         */
+        AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
+        IntStatus |= GpeHandlerInfo->Address (
+            GpeDevice, GpeNumber, GpeHandlerInfo->Context);
+        Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
+    }
+    else
+    {
+        /* Dispatch the event to a standard handler or method. */
+
+        IntStatus |= AcpiEvGpeDispatch (GpeDevice,
+            GpeEventInfo, GpeNumber);
+    }
+
+ErrorExit:
+    AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
+    return (IntStatus);
+}
+
+
+/*******************************************************************************
+ *
  * FUNCTION:    AcpiEvGpeDispatch
  *
  * PARAMETERS:  GpeDevice           - Device node. NULL for GPE0/GPE1
@@ -904,8 +942,6 @@ AcpiEvFinishGpe (
  *
  * DESCRIPTION: Dispatch a General Purpose Event to either a function (e.g. EC)
  *              or method (e.g. _Lxx/_Exx) handler.
- *
- *              This function executes at interrupt level.
  *
  ******************************************************************************/
 

Modified: vendor-sys/acpica/dist/source/components/events/evgpeblk.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/events/evgpeblk.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/events/evgpeblk.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -585,7 +585,7 @@ ACPI_STATUS
 AcpiEvInitializeGpeBlock (
     ACPI_GPE_XRUPT_INFO     *GpeXruptInfo,
     ACPI_GPE_BLOCK_INFO     *GpeBlock,
-    void                    *Ignored)
+    void                    *Context)
 {
     ACPI_STATUS             Status;
     ACPI_GPE_EVENT_INFO     *GpeEventInfo;
@@ -593,6 +593,8 @@ AcpiEvInitializeGpeBlock (
     UINT32                  GpeIndex;
     UINT32                  i;
     UINT32                  j;
+    BOOLEAN                 *IsPollingNeeded = Context;
+    ACPI_ERROR_ONLY (UINT32 GpeNumber);
 
 
     ACPI_FUNCTION_TRACE (EvInitializeGpeBlock);
@@ -622,14 +624,14 @@ AcpiEvInitializeGpeBlock (
 
             GpeIndex = (i * ACPI_GPE_REGISTER_WIDTH) + j;
             GpeEventInfo = &GpeBlock->EventInfo[GpeIndex];
+            ACPI_ERROR_ONLY(GpeNumber = GpeBlock->BlockBaseNumber + GpeIndex);
+            GpeEventInfo->Flags |= ACPI_GPE_INITIALIZED;
 
             /*
              * Ignore GPEs that have no corresponding _Lxx/_Exx method
              * and GPEs that are used to wake the system
              */
-            if ((ACPI_GPE_DISPATCH_TYPE (GpeEventInfo->Flags) == ACPI_GPE_DISPATCH_NONE) ||
-                (ACPI_GPE_DISPATCH_TYPE (GpeEventInfo->Flags) == ACPI_GPE_DISPATCH_HANDLER) ||
-                (ACPI_GPE_DISPATCH_TYPE (GpeEventInfo->Flags) == ACPI_GPE_DISPATCH_RAW_HANDLER) ||
+            if ((ACPI_GPE_DISPATCH_TYPE (GpeEventInfo->Flags) != ACPI_GPE_DISPATCH_METHOD) ||
                 (GpeEventInfo->Flags & ACPI_GPE_CAN_WAKE))
             {
                 continue;
@@ -640,8 +642,16 @@ AcpiEvInitializeGpeBlock (
             {
                 ACPI_EXCEPTION ((AE_INFO, Status,
                     "Could not enable GPE 0x%02X",
-                    GpeIndex + GpeBlock->BlockBaseNumber));
+                    GpeNumber));
                 continue;
+            }
+
+            GpeEventInfo->Flags |= ACPI_GPE_AUTO_ENABLED;
+
+            if (IsPollingNeeded &&
+                ACPI_GPE_IS_POLLING_NEEDED (GpeEventInfo))
+            {
+                *IsPollingNeeded = TRUE;
             }
 
             GpeEnabledCount++;

Modified: vendor-sys/acpica/dist/source/components/events/evrgnini.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/events/evrgnini.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/events/evrgnini.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -736,9 +736,12 @@ AcpiEvInitializeRegion (
                  * Node's object was replaced by this Method object and we
                  * saved the handler in the method object.
                  *
+                 * Note: Only used for the legacy MLC support. Will
+                 * be removed in the future.
+                 *
                  * See AcpiNsExecModuleCode
                  */
-                if (!AcpiGbl_ParseTableAsTermList &&
+                if (!AcpiGbl_ExecuteTablesAsMethods &&
                     ObjDesc->Method.InfoFlags & ACPI_METHOD_MODULE_LEVEL)
                 {
                     HandlerObj = ObjDesc->Method.Dispatch.Handler;

Modified: vendor-sys/acpica/dist/source/components/events/evxface.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/events/evxface.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/events/evxface.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -1257,6 +1257,15 @@ AcpiRemoveGpeHandler (
         Handler->OriginallyEnabled)
     {
         (void) AcpiEvAddGpeReference (GpeEventInfo);
+        if (ACPI_GPE_IS_POLLING_NEEDED (GpeEventInfo))
+        {
+            /* Poll edge triggered GPEs to handle existing events */
+
+            AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
+            (void) AcpiEvDetectGpe (
+                GpeDevice, GpeEventInfo, GpeNumber);
+            Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
+        }
     }
 
     AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);

Modified: vendor-sys/acpica/dist/source/components/events/evxfgpe.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/events/evxfgpe.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/events/evxfgpe.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -188,6 +188,7 @@ AcpiUpdateAllGpes (
     void)
 {
     ACPI_STATUS             Status;
+    BOOLEAN                 IsPollingNeeded = FALSE;
 
 
     ACPI_FUNCTION_TRACE (AcpiUpdateAllGpes);
@@ -204,7 +205,8 @@ AcpiUpdateAllGpes (
         goto UnlockAndExit;
     }
 
-    Status = AcpiEvWalkGpeList (AcpiEvInitializeGpeBlock, NULL);
+    Status = AcpiEvWalkGpeList (AcpiEvInitializeGpeBlock,
+        &IsPollingNeeded);
     if (ACPI_SUCCESS (Status))
     {
         AcpiGbl_AllGpesInitialized = TRUE;
@@ -212,6 +214,13 @@ AcpiUpdateAllGpes (
 
 UnlockAndExit:
     (void) AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
+
+    if (IsPollingNeeded && AcpiGbl_AllGpesInitialized)
+    {
+        /* Poll GPEs to handle already triggered events */
+
+        AcpiEvGpeDetect (AcpiGbl_GpeXruptListHead);
+    }
     return_ACPI_STATUS (Status);
 }
 
@@ -259,6 +268,16 @@ AcpiEnableGpe (
             ACPI_GPE_DISPATCH_NONE)
         {
             Status = AcpiEvAddGpeReference (GpeEventInfo);
+            if (ACPI_SUCCESS (Status) &&
+                ACPI_GPE_IS_POLLING_NEEDED (GpeEventInfo))
+            {
+                /* Poll edge-triggered GPEs to handle existing events */
+
+                AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
+                (void) AcpiEvDetectGpe (
+                    GpeDevice, GpeEventInfo, GpeNumber);
+                Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
+            }
         }
         else
         {
@@ -608,6 +627,16 @@ AcpiSetupGpeForWake (
          */
         GpeEventInfo->Flags =
             (ACPI_GPE_DISPATCH_NOTIFY | ACPI_GPE_LEVEL_TRIGGERED);
+    }
+    else if (GpeEventInfo->Flags & ACPI_GPE_AUTO_ENABLED)
+    {
+        /*
+         * A reference to this GPE has been added during the GPE block
+         * initialization, so drop it now to prevent the GPE from being
+         * permanently enabled and clear its ACPI_GPE_AUTO_ENABLED flag.
+         */
+        (void) AcpiEvRemoveGpeReference (GpeEventInfo);
+        GpeEventInfo->Flags &= ~~ACPI_GPE_AUTO_ENABLED;
     }
 
     /*

Modified: vendor-sys/acpica/dist/source/components/executer/exdebug.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/executer/exdebug.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/executer/exdebug.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -204,15 +204,14 @@ AcpiExDoDebugObject (
         return_VOID;
     }
 
-    /* Null string or newline -- don't emit the line header */
+    /* Newline -- don't emit the line header */
 
     if (SourceDesc &&
         (ACPI_GET_DESCRIPTOR_TYPE (SourceDesc) == ACPI_DESC_TYPE_OPERAND) &&
         (SourceDesc->Common.Type == ACPI_TYPE_STRING))
     {
-        if ((SourceDesc->String.Length == 0) ||
-                ((SourceDesc->String.Length == 1) &&
-                (*SourceDesc->String.Pointer == '\n')))
+        if ((SourceDesc->String.Length == 1) &&
+            (*SourceDesc->String.Pointer == '\n'))
         {
             AcpiOsPrintf ("\n");
             return_VOID;

Modified: vendor-sys/acpica/dist/source/components/hardware/hwgpe.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/hardware/hwgpe.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/hardware/hwgpe.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -658,7 +658,6 @@ AcpiHwDisableAllGpes (
 
 
     Status = AcpiEvWalkGpeList (AcpiHwDisableGpeBlock, NULL);
-    Status = AcpiEvWalkGpeList (AcpiHwClearGpeBlock, NULL);
     return_ACPI_STATUS (Status);
 }
 

Modified: vendor-sys/acpica/dist/source/components/hardware/hwsleep.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/hardware/hwsleep.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/hardware/hwsleep.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -198,16 +198,8 @@ AcpiHwLegacySleep (
         return_ACPI_STATUS (Status);
     }
 
-    /* Clear all fixed and general purpose status bits */
-
-    Status = AcpiHwClearAcpiStatus ();
-    if (ACPI_FAILURE (Status))
-    {
-        return_ACPI_STATUS (Status);
-    }
-
     /*
-     * 1) Disable/Clear all GPEs
+     * 1) Disable all GPEs
      * 2) Enable all wakeup GPEs
      */
     Status = AcpiHwDisableAllGpes ();
@@ -427,7 +419,7 @@ AcpiHwLegacyWake (
      * might get fired there
      *
      * Restore the GPEs:
-     * 1) Disable/Clear all GPEs
+     * 1) Disable all GPEs
      * 2) Enable all runtime GPEs
      */
     Status = AcpiHwDisableAllGpes ();

Modified: vendor-sys/acpica/dist/source/components/hardware/hwxfsleep.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/hardware/hwxfsleep.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/hardware/hwxfsleep.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -337,7 +337,7 @@ AcpiEnterSleepStateS4bios (
     }
 
     /*
-     * 1) Disable/Clear all GPEs
+     * 1) Disable all GPEs
      * 2) Enable all wakeup GPEs
      */
     Status = AcpiHwDisableAllGpes ();

Modified: vendor-sys/acpica/dist/source/components/namespace/nsdumpdv.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/namespace/nsdumpdv.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/namespace/nsdumpdv.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -208,9 +208,8 @@ AcpiNsDumpOneDevice (
         }
 
         ACPI_DEBUG_PRINT_RAW ((ACPI_DB_TABLES,
-            "    HID: %s, ADR: %8.8X%8.8X, Status: %X\n",
-            Info->HardwareId.Value, ACPI_FORMAT_UINT64 (Info->Address),
-            Info->CurrentStatus));
+            "    HID: %s, ADR: %8.8X%8.8X\n",
+            Info->HardwareId.Value, ACPI_FORMAT_UINT64 (Info->Address)));
         ACPI_FREE (Info);
     }
 

Modified: vendor-sys/acpica/dist/source/components/namespace/nseval.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/namespace/nseval.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/namespace/nseval.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -429,7 +429,17 @@ AcpiNsEvaluate (
 
         Status = AE_OK;
     }
+    else if (ACPI_FAILURE(Status)) 
+    {
+        /* If ReturnObject exists, delete it */
 
+        if (Info->ReturnObject) 
+        {
+            AcpiUtRemoveReference (Info->ReturnObject);
+            Info->ReturnObject = NULL;
+        }
+    }
+
     ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
         "*** Completed evaluation of object %s ***\n",
         Info->RelativePathname));
@@ -457,6 +467,17 @@ Cleanup:
  * DESCRIPTION: Execute all elements of the global module-level code list.
  *              Each element is executed as a single control method.
  *
+ * NOTE: With this option enabled, each block of detected executable AML
+ * code that is outside of any control method is wrapped with a temporary
+ * control method object and placed on a global list. The methods on this
+ * list are executed below.
+ *
+ * This function executes the module-level code for all tables only after
+ * all of the tables have been loaded. It is a legacy option and is
+ * not compatible with other ACPI implementations. See AcpiNsLoadTable.
+ *
+ * This function will be removed when the legacy option is removed.
+ *
  ******************************************************************************/
 
 void
@@ -477,6 +498,9 @@ AcpiNsExecModuleCodeList (
     Next = AcpiGbl_ModuleCodeList;
     if (!Next)
     {
+        ACPI_DEBUG_PRINT ((ACPI_DB_INIT_NAMES,
+            "Legacy MLC block list is empty\n"));
+
         return_VOID;
     }
 

Modified: vendor-sys/acpica/dist/source/components/namespace/nsload.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/namespace/nsload.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/namespace/nsload.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -270,23 +270,17 @@ Unlock:
         "**** Completed Table Object Initialization\n"));
 
     /*
-     * Execute any module-level code that was detected during the table load
-     * phase. Although illegal since ACPI 2.0, there are many machines that
-     * contain this type of code. Each block of detected executable AML code
-     * outside of any control method is wrapped with a temporary control
-     * method object and placed on a global list. The methods on this list
-     * are executed below.
+     * This case handles the legacy option that groups all module-level
+     * code blocks together and defers execution until all of the tables
+     * are loaded. Execute all of these blocks at this time.
+     * Execute any module-level code that was detected during the table
+     * load phase.
      *
-     * This case executes the module-level code for each table immediately
-     * after the table has been loaded. This provides compatibility with
-     * other ACPI implementations. Optionally, the execution can be deferred
-     * until later, see AcpiInitializeObjects.
+     * Note: this option is deprecated and will be eliminated in the
+     * future. Use of this option can cause problems with AML code that
+     * depends upon in-order immediate execution of module-level code.
      */
-    if (!AcpiGbl_ParseTableAsTermList && !AcpiGbl_GroupModuleLevelCode)
-    {
-        AcpiNsExecModuleCodeList ();
-    }
-
+    AcpiNsExecModuleCodeList ();
     return_ACPI_STATUS (Status);
 }
 

Modified: vendor-sys/acpica/dist/source/components/namespace/nsparse.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/namespace/nsparse.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/namespace/nsparse.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -171,9 +171,18 @@
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Load ACPI/AML table by executing the entire table as a
- *              TermList.
+ * DESCRIPTION: Load ACPI/AML table by executing the entire table as a single
+ *              large control method.
  *
+ * NOTE: The point of this is to execute any module-level code in-place
+ * as the table is parsed. Some AML code depends on this behavior.
+ *
+ * It is a run-time option at this time, but will eventually become
+ * the default.
+ *
+ * Note: This causes the table to only have a single-pass parse.
+ * However, this is compatible with other ACPI implementations.
+ *
  ******************************************************************************/
 
 ACPI_STATUS
@@ -403,8 +412,19 @@ AcpiNsParseTable (
     ACPI_FUNCTION_TRACE (NsParseTable);
 
 
-    if (AcpiGbl_ParseTableAsTermList)
+    if (AcpiGbl_ExecuteTablesAsMethods)
     {
+        /*
+         * This case executes the AML table as one large control method.
+         * The point of this is to execute any module-level code in-place
+         * as the table is parsed. Some AML code depends on this behavior.
+         *
+         * It is a run-time option at this time, but will eventually become
+         * the default.
+         *
+         * Note: This causes the table to only have a single-pass parse.
+         * However, this is compatible with other ACPI implementations.
+         */
         ACPI_DEBUG_PRINT_RAW ((ACPI_DB_PARSE,
             "%s: **** Start table execution pass\n", ACPI_GET_FUNCTION_NAME));
 

Modified: vendor-sys/acpica/dist/source/components/namespace/nsxfname.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/namespace/nsxfname.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/namespace/nsxfname.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -376,7 +376,7 @@ AcpiNsCopyDeviceId (
  *              namespace node and possibly by running several standard
  *              control methods (Such as in the case of a device.)
  *
- * For Device and Processor objects, run the Device _HID, _UID, _CID, _STA,
+ * For Device and Processor objects, run the Device _HID, _UID, _CID,
  * _CLS, _ADR, _SxW, and _SxD methods.
  *
  * Note: Allocates the return buffer, must be freed by the caller.
@@ -385,8 +385,9 @@ AcpiNsCopyDeviceId (
  * discovery namespace traversal. Therefore, no complex methods can be
  * executed, especially those that access operation regions. Therefore, do
  * not add any additional methods that could cause problems in this area.
- * this was the fate of the _SUB method which was found to cause such
- * problems and was removed (11/2015).
+ * Because of this reason support for the following methods has been removed:
+ * 1) _SUB method was removed (11/2015)
+ * 2) _STA method was removed (02/2018)
  *
  ******************************************************************************/
 
@@ -517,25 +518,12 @@ AcpiGetObjectInfo (
     {
         /*
          * Get extra info for ACPI Device/Processor objects only:
-         * Run the _STA, _ADR and, SxW, and _SxD methods.
+         * Run the _ADR and, SxW, and _SxD methods.
          *
          * Notes: none of these methods are required, so they may or may
          * not be present for this device. The Info->Valid bitfield is used
          * to indicate which methods were found and run successfully.
-         *
-         * For _STA, if the method does not exist, then (as per the ACPI
-         * specification), the returned CurrentStatus flags will indicate
-         * that the device is present/functional/enabled. Otherwise, the
-         * CurrentStatus flags reflect the value returned from _STA.
          */
-
-        /* Execute the Device._STA method */
-
-        Status = AcpiUtExecute_STA (Node, &Info->CurrentStatus);
-        if (ACPI_SUCCESS (Status))
-        {
-            Valid |= ACPI_VALID_STA;
-        }
 
         /* Execute the Device._ADR method */
 

Modified: vendor-sys/acpica/dist/source/components/parser/psargs.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/parser/psargs.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/parser/psargs.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -1051,6 +1051,9 @@ AcpiPsGetNextArg (
 
             if (Arg->Common.AmlOpcode == AML_INT_METHODCALL_OP)
             {
+                /* Free method call op and corresponding namestring sub-ob */
+
+                AcpiPsFreeOp (Arg->Common.Value.Arg);
                 AcpiPsFreeOp (Arg);
                 Arg = NULL;
                 WalkState->ArgCount = 1;

Modified: vendor-sys/acpica/dist/source/components/parser/psloop.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/parser/psloop.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/parser/psloop.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -287,10 +287,18 @@ AcpiPsGetArguments (
             WalkState->ArgCount, WalkState->PassNumber));
 
         /*
-         * Handle executable code at "module-level". This refers to
-         * executable opcodes that appear outside of any control method.
+         * This case handles the legacy option that groups all module-level
+         * code blocks together and defers execution until all of the tables
+         * are loaded. Execute all of these blocks at this time.
+         * Execute any module-level code that was detected during the table
+         * load phase.
+         *
+         * Note: this option is deprecated and will be eliminated in the
+         * future. Use of this option can cause problems with AML code that
+         * depends upon in-order immediate execution of module-level code.
          */
-        if ((WalkState->PassNumber <= ACPI_IMODE_LOAD_PASS2) &&
+        if (AcpiGbl_GroupModuleLevelCode &&
+            (WalkState->PassNumber <= ACPI_IMODE_LOAD_PASS2) &&
             ((WalkState->ParseFlags & ACPI_PARSE_DISASSEMBLE) == 0))
         {
             /*
@@ -439,6 +447,16 @@ AcpiPsGetArguments (
  * DESCRIPTION: Wrap the module-level code with a method object and link the
  *              object to the global list. Note, the mutex field of the method
  *              object is used to link multiple module-level code objects.
+ *
+ * NOTE: In this legacy option, each block of detected executable AML
+ * code that is outside of any control method is wrapped with a temporary
+ * control method object and placed on a global list below.
+ *
+ * This function executes the module-level code for all tables only after
+ * all of the tables have been loaded. It is a legacy option and is
+ * not compatible with other ACPI implementations. See AcpiNsLoadTable.
+ *
+ * This function will be removed when the legacy option is removed.
  *
  ******************************************************************************/
 

Modified: vendor-sys/acpica/dist/source/components/parser/psobject.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/parser/psobject.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/parser/psobject.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -182,7 +182,7 @@ static ACPI_STATUS
 AcpiPsGetAmlOpcode (
     ACPI_WALK_STATE         *WalkState)
 {
-    UINT32                  AmlOffset;
+    ACPI_ERROR_ONLY (UINT32 AmlOffset);
 
 
     ACPI_FUNCTION_TRACE_PTR (PsGetAmlOpcode, WalkState);
@@ -217,8 +217,8 @@ AcpiPsGetAmlOpcode (
 
         if (WalkState->PassNumber == 2)
         {
-            AmlOffset = (UINT32) ACPI_PTR_DIFF (WalkState->Aml,
-                WalkState->ParserState.AmlStart);
+            ACPI_ERROR_ONLY(AmlOffset = (UINT32) ACPI_PTR_DIFF (WalkState->Aml,
+                WalkState->ParserState.AmlStart));
 
             ACPI_ERROR ((AE_INFO,
                 "Unknown opcode 0x%.2X at table offset 0x%.4X, ignoring",

Modified: vendor-sys/acpica/dist/source/components/tables/tbdata.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/tables/tbdata.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/tables/tbdata.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -1190,12 +1190,18 @@ AcpiTbLoadTable (
 
     Status = AcpiNsLoadTable (TableIndex, ParentNode);
 
-    /* Execute any module-level code that was found in the table */
-
-    if (!AcpiGbl_ParseTableAsTermList && AcpiGbl_GroupModuleLevelCode)
-    {
-        AcpiNsExecModuleCodeList ();
-    }
+    /*
+     * This case handles the legacy option that groups all module-level
+     * code blocks together and defers execution until all of the tables
+     * are loaded. Execute all of these blocks at this time.
+     * Execute any module-level code that was detected during the table
+     * load phase.
+     *
+     * Note: this option is deprecated and will be eliminated in the
+     * future. Use of this option can cause problems with AML code that
+     * depends upon in-order immediate execution of module-level code.
+     */
+    AcpiNsExecModuleCodeList ();
 
     /*
      * Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is

Modified: vendor-sys/acpica/dist/source/components/tables/tbinstal.c
==============================================================================
--- vendor-sys/acpica/dist/source/components/tables/tbinstal.c	Wed Mar 14 19:09:58 2018	(r330940)
+++ vendor-sys/acpica/dist/source/components/tables/tbinstal.c	Wed Mar 14 19:17:38 2018	(r330941)
@@ -356,11 +356,11 @@ AcpiTbOverrideTable (
     ACPI_TABLE_DESC         *OldTableDesc)
 {
     ACPI_STATUS             Status;
-    char                    *OverrideType;
     ACPI_TABLE_DESC         NewTableDesc;
     ACPI_TABLE_HEADER       *Table;
     ACPI_PHYSICAL_ADDRESS   Address;
     UINT32                  Length;
+    ACPI_ERROR_ONLY (char   *OverrideType);
 
 
     /* (1) Attempt logical override (returns a logical address) */
@@ -370,7 +370,7 @@ AcpiTbOverrideTable (
     {
         AcpiTbAcquireTempTable (&NewTableDesc, ACPI_PTR_TO_PHYSADDR (Table),
             ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL);
-        OverrideType = "Logical";
+        ACPI_ERROR_ONLY (OverrideType = "Logical");
         goto FinishOverride;
     }
 
@@ -382,7 +382,7 @@ AcpiTbOverrideTable (
     {
         AcpiTbAcquireTempTable (&NewTableDesc, Address,
             ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL);
-        OverrideType = "Physical";
+        ACPI_ERROR_ONLY (OverrideType = "Physical");
         goto FinishOverride;

*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***


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