Merge intel.com:/home/lenb/bk/26-latest-ref

into intel.com:/home/lenb/src/26-latest-dev

11 files changed, 160 insertions, 82 deletions

diff --git a/drivers/acpi/dispatcher/dswexec.c b/drivers/acpi/dispatcher/dswexec.c
index c40922640bda..b02322e213de 100644
--- a/drivers/acpi/dispatcher/dswexec.c
+++ b/drivers/acpi/dispatcher/dswexec.c
@@ -578,6 +578,13 @@ acpi_ds_exec_end_op (
 				break;
 			}
 
+			/* Done with this result state (Now that operand stack is built) */
+
+			status = acpi_ds_result_stack_pop (walk_state);
+			if (ACPI_FAILURE (status)) {
+				goto cleanup;
+			}
+
 			/*
 			 * If a result object was returned from above, push it on the
 			 * current result stack
diff --git a/drivers/acpi/executer/exoparg6.c b/drivers/acpi/executer/exoparg6.c
index ea353f4f2c2c..d32624331626 100644
--- a/drivers/acpi/executer/exoparg6.c
+++ b/drivers/acpi/executer/exoparg6.c
@@ -81,75 +81,119 @@
  * FUNCTION:    acpi_ex_do_match
  *
  * PARAMETERS:  match_op        - The AML match operand
- *              package_value   - Value from the target package
- *              match_value     - Value to be matched
+ *              package_obj     - Object from the target package
+ *              match_obj       - Object to be matched
  *
  * RETURN:      TRUE if the match is successful, FALSE otherwise
  *
- * DESCRIPTION: Implements the low-level match for the ASL Match operator
+ * DESCRIPTION: Implements the low-level match for the ASL Match operator.
+ *              Package elements will be implicitly converted to the type of
+ *              the match object (Integer/Buffer/String).
  *
  ******************************************************************************/
 
 u8
 acpi_ex_do_match (
 	u32                             match_op,
-	acpi_integer                    package_value,
-	acpi_integer                    match_value)
+	union acpi_operand_object       *package_obj,
+	union acpi_operand_object       *match_obj)
 {
-
+	u8                              logical_result = TRUE;
+	acpi_status                     status;
+
+
+	/*
+	 * Note: Since the package_obj/match_obj ordering is opposite to that of
+	 * the standard logical operators, we have to reverse them when we call
+	 * do_logical_op in order to make the implicit conversion rules work
+	 * correctly. However, this means we have to flip the entire equation
+	 * also. A bit ugly perhaps, but overall, better than fussing the
+	 * parameters around at runtime, over and over again.
+	 *
+	 * Below, P[i] refers to the package element, M refers to the Match object.
+	 */
 	switch (match_op) {
-	case MATCH_MTR:   /* always true */
+	case MATCH_MTR:
 
-		break;
+		/* Always true */
 
+		break;
 
-	case MATCH_MEQ:   /* true if equal   */
+	case MATCH_MEQ:
 
-		if (package_value != match_value) {
+		/*
+		 * True if equal: (P[i] == M)
+		 * Change to:     (M == P[i])
+		 */
+		status = acpi_ex_do_logical_op (AML_LEQUAL_OP, match_obj, package_obj,
+				 &logical_result);
+		if (ACPI_FAILURE (status)) {
 			return (FALSE);
 		}
 		break;
 
+	case MATCH_MLE:
 
-	case MATCH_MLE:   /* true if less than or equal  */
-
-		if (package_value > match_value) {
+		/*
+		 * True if less than or equal: (P[i] <= M) (P[i] not_greater than M)
+		 * Change to:                  (M >= P[i]) (M not_less than P[i])
+		 */
+		status = acpi_ex_do_logical_op (AML_LLESS_OP, match_obj, package_obj,
+				 &logical_result);
+		if (ACPI_FAILURE (status)) {
 			return (FALSE);
 		}
+		logical_result = (u8) !logical_result;
 		break;
 
+	case MATCH_MLT:
 
-	case MATCH_MLT:   /* true if less than   */
-
-		if (package_value >= match_value) {
+		/*
+		 * True if less than: (P[i] < M)
+		 * Change to:         (M > P[i])
+		 */
+		status = acpi_ex_do_logical_op (AML_LGREATER_OP, match_obj, package_obj,
+				 &logical_result);
+		if (ACPI_FAILURE (status)) {
 			return (FALSE);
 		}
 		break;
 
+	case MATCH_MGE:
 
-	case MATCH_MGE:   /* true if greater than or equal   */
-
-		if (package_value < match_value) {
+		/*
+		 * True if greater than or equal: (P[i] >= M) (P[i] not_less than M)
+		 * Change to:                     (M <= P[i]) (M not_greater than P[i])
+		 */
+		status = acpi_ex_do_logical_op (AML_LGREATER_OP, match_obj, package_obj,
+				 &logical_result);
+		if (ACPI_FAILURE (status)) {
 			return (FALSE);
 		}
+		logical_result = (u8)!logical_result;
 		break;
 
+	case MATCH_MGT:
 
-	case MATCH_MGT:   /* true if greater than    */
-
-		if (package_value <= match_value) {
+		/*
+		 * True if greater than: (P[i] > M)
+		 * Change to:            (M < P[i])
+		 */
+		status = acpi_ex_do_logical_op (AML_LLESS_OP, match_obj, package_obj,
+				 &logical_result);
+		if (ACPI_FAILURE (status)) {
 			return (FALSE);
 		}
 		break;
 
+	default:
 
-	default:    /* undefined   */
+		/* Undefined */
 
 		return (FALSE);
 	}
 
-
-	return TRUE;
+	return logical_result;
 }
 
 
@@ -182,19 +226,21 @@ acpi_ex_opcode_6A_0T_1R (
 	switch (walk_state->opcode) {
 	case AML_MATCH_OP:
 		/*
-		 * Match (search_package[0], match_op1[1], match_object1[2],
-		 *                          match_op2[3], match_object2[4], start_index[5])
+		 * Match (search_pkg[0], match_op1[1], match_obj1[2],
+		 *                      match_op2[3], match_obj2[4], start_index[5])
 		 */
 
-		/* Validate match comparison sub-opcodes */
+		/* Validate both Match Term Operators (MTR, MEQ, etc.) */
 
 		if ((operand[1]->integer.value > MAX_MATCH_OPERATOR) ||
 			(operand[3]->integer.value > MAX_MATCH_OPERATOR)) {
-			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "operation encoding out of range\n"));
+			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Match operator out of range\n"));
 			status = AE_AML_OPERAND_VALUE;
 			goto cleanup;
 		}
 
+		/* Get the package start_index, validate against the package length */
+
 		index = (u32) operand[5]->integer.value;
 		if (index >= (u32) operand[0]->package.count) {
 			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Index beyond package end\n"));
@@ -202,6 +248,8 @@ acpi_ex_opcode_6A_0T_1R (
 			goto cleanup;
 		}
 
+		/* Create an integer for the return value */
+
 		return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
 		if (!return_desc) {
 			status = AE_NO_MEMORY;
@@ -214,37 +262,39 @@ acpi_ex_opcode_6A_0T_1R (
 		return_desc->integer.value = ACPI_INTEGER_MAX;
 
 		/*
-		 * Examine each element until a match is found.  Within the loop,
+		 * Examine each element until a match is found. Both match conditions
+		 * must be satisfied for a match to occur. Within the loop,
 		 * "continue" signifies that the current element does not match
 		 * and the next should be examined.
 		 *
 		 * Upon finding a match, the loop will terminate via "break" at
-		 * the bottom.  If it terminates "normally", match_value will be -1
-		 * (its initial value) indicating that no match was found.  When
-		 * returned as a Number, this will produce the Ones value as specified.
+		 * the bottom.  If it terminates "normally", match_value will be
+		 * ACPI_INTEGER_MAX (Ones) (its initial value) indicating that no
+		 * match was found.
 		 */
 		for ( ; index < operand[0]->package.count; index++) {
+			/* Get the current package element */
+
 			this_element = operand[0]->package.elements[index];
 
-			/*
-			 * Treat any NULL or non-numeric elements as non-matching.
-			 */
-			if (!this_element ||
-				ACPI_GET_OBJECT_TYPE (this_element) != ACPI_TYPE_INTEGER) {
+			/* Treat any uninitialized (NULL) elements as non-matching */
+
+			if (!this_element) {
 				continue;
 			}
 
 			/*
-			 * "continue" (proceed to next iteration of enclosing
-			 * "for" loop) signifies a non-match.
+			 * Both match conditions must be satisfied. Execution of a continue
+			 * (proceed to next iteration of enclosing for loop) signifies a
+			 * non-match.
 			 */
 			if (!acpi_ex_do_match ((u32) operand[1]->integer.value,
-					   this_element->integer.value, operand[2]->integer.value)) {
+					   this_element, operand[2])) {
 				continue;
 			}
 
 			if (!acpi_ex_do_match ((u32) operand[3]->integer.value,
-					   this_element->integer.value, operand[4]->integer.value)) {
+					   this_element, operand[4])) {
 				continue;
 			}
 
@@ -253,7 +303,6 @@ acpi_ex_opcode_6A_0T_1R (
 			return_desc->integer.value = index;
 			break;
 		}
-
 		break;
 
 
diff --git a/drivers/acpi/executer/exresop.c b/drivers/acpi/executer/exresop.c
index 8dcfa427930e..c92890220c32 100644
--- a/drivers/acpi/executer/exresop.c
+++ b/drivers/acpi/executer/exresop.c
@@ -312,7 +312,7 @@ acpi_ex_resolve_operands (
 			goto next_operand;
 
 
-		case ARGI_ANYTYPE:
+		case ARGI_DATAREFOBJ:  /* Store operator only */
 
 			/*
 			 * We don't want to resolve index_op reference objects during
diff --git a/drivers/acpi/executer/exstoren.c b/drivers/acpi/executer/exstoren.c
index 8b908fc894e0..e663a48f8a1c 100644
--- a/drivers/acpi/executer/exstoren.c
+++ b/drivers/acpi/executer/exstoren.c
@@ -206,6 +206,7 @@ acpi_ex_store_object_to_object (
 {
 	union acpi_operand_object       *actual_src_desc;
 	acpi_status                     status = AE_OK;
+	acpi_object_type                original_src_type;
 
 
 	ACPI_FUNCTION_TRACE_PTR ("ex_store_object_to_object", source_desc);
@@ -222,7 +223,8 @@ acpi_ex_store_object_to_object (
 		return_ACPI_STATUS (status);
 	}
 
-	if (ACPI_GET_OBJECT_TYPE (source_desc) != ACPI_GET_OBJECT_TYPE (dest_desc)) {
+	original_src_type = ACPI_GET_OBJECT_TYPE (source_desc);
+	if (original_src_type != ACPI_GET_OBJECT_TYPE (dest_desc)) {
 		/*
 		 * The source type does not match the type of the destination.
 		 * Perform the "implicit conversion" of the source to the current type
@@ -232,15 +234,15 @@ acpi_ex_store_object_to_object (
 		 * Otherwise, actual_src_desc is a temporary object to hold the
 		 * converted object.
 		 */
-		status = acpi_ex_convert_to_target_type (ACPI_GET_OBJECT_TYPE (dest_desc), source_desc,
-				  &actual_src_desc, walk_state);
+		status = acpi_ex_convert_to_target_type (ACPI_GET_OBJECT_TYPE (dest_desc),
+				  source_desc, &actual_src_desc, walk_state);
 		if (ACPI_FAILURE (status)) {
 			return_ACPI_STATUS (status);
 		}
 
 		if (source_desc == actual_src_desc) {
 			/*
-			 * No conversion was performed.  Return the source_desc as the
+			 * No conversion was performed. Return the source_desc as the
 			 * new object.
 			 */
 			*new_desc = source_desc;
@@ -269,12 +271,18 @@ acpi_ex_store_object_to_object (
 
 	case ACPI_TYPE_BUFFER:
 
-		status = acpi_ex_store_buffer_to_buffer (actual_src_desc, dest_desc);
+		/*
+		 * Note: There is different store behavior depending on the original
+		 * source type
+		 */
+		status = acpi_ex_store_buffer_to_buffer (original_src_type, actual_src_desc,
+				 dest_desc);
 		break;
 
 	case ACPI_TYPE_PACKAGE:
 
-		status = acpi_ut_copy_iobject_to_iobject (actual_src_desc, &dest_desc, walk_state);
+		status = acpi_ut_copy_iobject_to_iobject (actual_src_desc, &dest_desc,
+				 walk_state);
 		break;
 
 	default:
diff --git a/drivers/acpi/executer/exstorob.c b/drivers/acpi/executer/exstorob.c
index d5f5349543f8..4e2b442ee5a3 100644
--- a/drivers/acpi/executer/exstorob.c
+++ b/drivers/acpi/executer/exstorob.c
@@ -66,6 +66,7 @@
 
 acpi_status
 acpi_ex_store_buffer_to_buffer (
+	acpi_object_type                original_src_type,
 	union acpi_operand_object       *source_desc,
 	union acpi_operand_object       *target_desc)
 {
@@ -104,9 +105,16 @@ acpi_ex_store_buffer_to_buffer (
 		ACPI_MEMSET (target_desc->buffer.pointer, 0, target_desc->buffer.length);
 		ACPI_MEMCPY (target_desc->buffer.pointer, buffer, length);
 
-		/* Set the new length of the target */
+		/*
+		 * If the original source was a string, we must truncate the buffer,
+		 * according to the ACPI spec.  Integer-to-Buffer and Buffer-to-Buffer
+		 * copy must not truncate the original buffer.
+		 */
+		if (original_src_type == ACPI_TYPE_STRING) {
+			/* Set the new length of the target */
 
-		target_desc->buffer.length = length;
+			target_desc->buffer.length = length;
+		}
 	}
 	else {
 		/* Truncate the source, copy only what will fit */
diff --git a/drivers/acpi/namespace/nsxfname.c b/drivers/acpi/namespace/nsxfname.c
index a84d7004993b..f2405efd1b9a 100644
--- a/drivers/acpi/namespace/nsxfname.c
+++ b/drivers/acpi/namespace/nsxfname.c
@@ -237,7 +237,7 @@ acpi_get_object_info (
 {
 	acpi_status                     status;
 	struct acpi_namespace_node      *node;
-	struct acpi_device_info         info;
+	struct acpi_device_info         *info;
 	struct acpi_device_info         *return_info;
 	struct acpi_compatible_id_list *cid_list = NULL;
 	acpi_size                       size;
@@ -254,55 +254,59 @@ acpi_get_object_info (
 		return (status);
 	}
 
+	info = ACPI_MEM_CALLOCATE (sizeof (struct acpi_device_info));
+	if (!info) {
+		return (AE_NO_MEMORY);
+	}
+
 	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
 	if (ACPI_FAILURE (status)) {
-		return (status);
+		goto cleanup;
 	}
 
 	node = acpi_ns_map_handle_to_node (handle);
 	if (!node) {
 		(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
-		return (AE_BAD_PARAMETER);
+		goto cleanup;
 	}
 
 	/* Init return structure */
 
 	size = sizeof (struct acpi_device_info);
-	ACPI_MEMSET (&info, 0, size);
 
-	info.type  = node->type;
-	info.name  = node->name.integer;
-	info.valid = 0;
+	info->type  = node->type;
+	info->name  = node->name.integer;
+	info->valid = 0;
 
 	status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
 	if (ACPI_FAILURE (status)) {
-		return (status);
+		goto cleanup;
 	}
 
 	/* If not a device, we are all done */
 
-	if (info.type == ACPI_TYPE_DEVICE) {
+	if (info->type == ACPI_TYPE_DEVICE) {
 		/*
 		 * Get extra info for ACPI Devices objects only:
 		 * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods.
 		 *
 		 * Note: none of these methods are required, so they may or may
-		 * not be present for this device.  The Info.Valid bitfield is used
+		 * not be present for this device.  The Info->Valid bitfield is used
 		 * to indicate which methods were found and ran successfully.
 		 */
 
 		/* Execute the Device._HID method */
 
-		status = acpi_ut_execute_HID (node, &info.hardware_id);
+		status = acpi_ut_execute_HID (node, &info->hardware_id);
 		if (ACPI_SUCCESS (status)) {
-			info.valid |= ACPI_VALID_HID;
+			info->valid |= ACPI_VALID_HID;
 		}
 
 		/* Execute the Device._UID method */
 
-		status = acpi_ut_execute_UID (node, &info.unique_id);
+		status = acpi_ut_execute_UID (node, &info->unique_id);
 		if (ACPI_SUCCESS (status)) {
-			info.valid |= ACPI_VALID_UID;
+			info->valid |= ACPI_VALID_UID;
 		}
 
 		/* Execute the Device._CID method */
@@ -311,32 +315,30 @@ acpi_get_object_info (
 		if (ACPI_SUCCESS (status)) {
 			size += ((acpi_size) cid_list->count - 1) *
 					 sizeof (struct acpi_compatible_id);
-			info.valid |= ACPI_VALID_CID;
+			info->valid |= ACPI_VALID_CID;
 		}
 
 		/* Execute the Device._STA method */
 
-		status = acpi_ut_execute_STA (node, &info.current_status);
+		status = acpi_ut_execute_STA (node, &info->current_status);
 		if (ACPI_SUCCESS (status)) {
-			info.valid |= ACPI_VALID_STA;
+			info->valid |= ACPI_VALID_STA;
 		}
 
 		/* Execute the Device._ADR method */
 
 		status = acpi_ut_evaluate_numeric_object (METHOD_NAME__ADR, node,
-				  &info.address);
+				  &info->address);
 		if (ACPI_SUCCESS (status)) {
-			info.valid |= ACPI_VALID_ADR;
+			info->valid |= ACPI_VALID_ADR;
 		}
 
 		/* Execute the Device._sx_d methods */
 
-		status = acpi_ut_execute_sxds (node, info.highest_dstates);
+		status = acpi_ut_execute_sxds (node, info->highest_dstates);
 		if (ACPI_SUCCESS (status)) {
-			info.valid |= ACPI_VALID_SXDS;
+			info->valid |= ACPI_VALID_SXDS;
 		}
-
-		status = AE_OK;
 	}
 
 	/* Validate/Allocate/Clear caller buffer */
@@ -349,7 +351,7 @@ acpi_get_object_info (
 	/* Populate the return buffer */
 
 	return_info = buffer->pointer;
-	ACPI_MEMCPY (return_info, &info, sizeof (struct acpi_device_info));
+	ACPI_MEMCPY (return_info, info, sizeof (struct acpi_device_info));
 
 	if (cid_list) {
 		ACPI_MEMCPY (&return_info->compatibility_id, cid_list, cid_list->size);
@@ -357,6 +359,7 @@ acpi_get_object_info (
 
 
 cleanup:
+	ACPI_MEM_FREE (info);
 	if (cid_list) {
 		ACPI_MEM_FREE (cid_list);
 	}
diff --git a/drivers/acpi/parser/psopcode.c b/drivers/acpi/parser/psopcode.c
index eb1f4179128f..c1360fc23cee 100644
--- a/drivers/acpi/parser/psopcode.c
+++ b/drivers/acpi/parser/psopcode.c
@@ -289,7 +289,7 @@
 #define ARGI_LOCAL6                     ARG_NONE
 #define ARGI_LOCAL7                     ARG_NONE
 #define ARGI_LOR_OP                     ARGI_LIST2 (ARGI_INTEGER,    ARGI_INTEGER)
-#define ARGI_MATCH_OP                   ARGI_LIST6 (ARGI_PACKAGE,    ARGI_INTEGER,       ARGI_INTEGER,      ARGI_INTEGER,   ARGI_INTEGER,   ARGI_INTEGER)
+#define ARGI_MATCH_OP                   ARGI_LIST6 (ARGI_PACKAGE,    ARGI_INTEGER,   ARGI_COMPUTEDATA,      ARGI_INTEGER,ARGI_COMPUTEDATA,ARGI_INTEGER)
 #define ARGI_METHOD_OP                  ARGI_INVALID_OPCODE
 #define ARGI_METHODCALL_OP              ARGI_INVALID_OPCODE
 #define ARGI_MID_OP                     ARGI_LIST4 (ARGI_BUFFER_OR_STRING,ARGI_INTEGER,  ARGI_INTEGER,      ARGI_TARGETREF)
diff --git a/drivers/acpi/tables/tbconvrt.c b/drivers/acpi/tables/tbconvrt.c
index dfc1559b173d..334327c1f66f 100644
--- a/drivers/acpi/tables/tbconvrt.c
+++ b/drivers/acpi/tables/tbconvrt.c
@@ -269,8 +269,8 @@ acpi_tb_convert_fadt1 (
 		 * that immediately follows.
 		 */
 		ACPI_MEMCPY (&local_fadt->reset_register,
-			&((struct fadt_descriptor_rev2_minus *) original_fadt)->reset_register,
-			sizeof (struct acpi_generic_address) + 1);
+			&(ACPI_CAST_PTR (struct fadt_descriptor_rev2_minus, original_fadt))->reset_register,
+  			sizeof (struct acpi_generic_address) + 1);
 	}
 	else {
 		/*
diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h
index a830919a1de4..6701c11b406b 100644
--- a/include/acpi/acconfig.h
+++ b/include/acpi/acconfig.h
@@ -64,7 +64,7 @@
 
 /* Version string */
 
-#define ACPI_CA_VERSION                 0x20050125
+#define ACPI_CA_VERSION                 0x20050211
 
 /*
  * OS name, used for the _OS object.  The _OS object is essentially obsolete,
diff --git a/include/acpi/acinterp.h b/include/acpi/acinterp.h
index 6a5cbb355685..78395916e4cf 100644
--- a/include/acpi/acinterp.h
+++ b/include/acpi/acinterp.h
@@ -217,8 +217,8 @@ acpi_ex_opcode_6A_0T_1R (
 u8
 acpi_ex_do_match (
 	u32                             match_op,
-	acpi_integer                    package_value,
-	acpi_integer                    match_value);
+	union acpi_operand_object       *package_obj,
+	union acpi_operand_object       *match_obj);
 
 acpi_status
 acpi_ex_get_object_reference (
@@ -617,6 +617,7 @@ acpi_ex_store_object_to_object (
 
 acpi_status
 acpi_ex_store_buffer_to_buffer (
+	acpi_object_type                original_src_type,
 	union acpi_operand_object       *source_desc,
 	union acpi_operand_object       *target_desc);
 
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index d807f2981d95..a3de0db85694 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -81,6 +81,8 @@
 #define ACPI_USE_NATIVE_DIVIDE
 #endif
 
+#define __cdecl
+#define ACPI_FLUSH_CPU_CACHE()
 #endif /* __KERNEL__ */
 
 /* Linux uses GCC */