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@@ -76,15 +76,14 @@ static u32 acpi_ex_digits_needed(acpi_integer value, u32 base);
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*
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*
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* PARAMETERS: None
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* PARAMETERS: None
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*
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*
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- * RETURN: None
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+ * RETURN: Status
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*
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*
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- * DESCRIPTION: Enter the interpreter execution region. Failure to enter
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- * the interpreter region is a fatal system error. Used in
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- * conjunction with exit_interpreter.
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+ * DESCRIPTION: Enter the interpreter execution region. Failure to enter
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+ * the interpreter region is a fatal system error
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*
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*
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******************************************************************************/
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******************************************************************************/
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-void acpi_ex_enter_interpreter(void)
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+acpi_status acpi_ex_enter_interpreter(void)
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{
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{
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acpi_status status;
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acpi_status status;
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@@ -92,42 +91,10 @@ void acpi_ex_enter_interpreter(void)
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status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
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status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
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if (ACPI_FAILURE(status)) {
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if (ACPI_FAILURE(status)) {
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- ACPI_ERROR((AE_INFO,
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- "Could not acquire AML Interpreter mutex"));
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+ ACPI_ERROR((AE_INFO, "Could not acquire interpreter mutex"));
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}
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}
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- return_VOID;
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-}
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-
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-/*******************************************************************************
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- *
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- * FUNCTION: acpi_ex_reacquire_interpreter
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- *
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- * PARAMETERS: None
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- *
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- * RETURN: None
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- *
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- * DESCRIPTION: Reacquire the interpreter execution region from within the
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- * interpreter code. Failure to enter the interpreter region is a
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- * fatal system error. Used in conjuction with
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- * relinquish_interpreter
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- *
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- ******************************************************************************/
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-
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-void acpi_ex_reacquire_interpreter(void)
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-{
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- ACPI_FUNCTION_TRACE(ex_reacquire_interpreter);
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-
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- /*
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- * If the global serialized flag is set, do not release the interpreter,
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- * since it was not actually released by acpi_ex_relinquish_interpreter.
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- * This forces the interpreter to be single threaded.
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- */
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- if (!acpi_gbl_all_methods_serialized) {
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- acpi_ex_enter_interpreter();
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- }
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-
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- return_VOID;
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+ return_ACPI_STATUS(status);
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}
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}
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/*******************************************************************************
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/*******************************************************************************
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@@ -138,9 +105,17 @@ void acpi_ex_reacquire_interpreter(void)
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*
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*
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* RETURN: None
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* RETURN: None
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*
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*
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- * DESCRIPTION: Exit the interpreter execution region. This is the top level
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- * routine used to exit the interpreter when all processing has
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- * been completed.
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+ * DESCRIPTION: Exit the interpreter execution region
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+ *
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+ * Cases where the interpreter is unlocked:
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+ * 1) Completion of the execution of a control method
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+ * 2) Method blocked on a Sleep() AML opcode
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+ * 3) Method blocked on an Acquire() AML opcode
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+ * 4) Method blocked on a Wait() AML opcode
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+ * 5) Method blocked to acquire the global lock
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+ * 6) Method blocked to execute a serialized control method that is
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+ * already executing
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+ * 7) About to invoke a user-installed opregion handler
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*
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*
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******************************************************************************/
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******************************************************************************/
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@@ -152,46 +127,7 @@ void acpi_ex_exit_interpreter(void)
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status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
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status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
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if (ACPI_FAILURE(status)) {
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if (ACPI_FAILURE(status)) {
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- ACPI_ERROR((AE_INFO,
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- "Could not release AML Interpreter mutex"));
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- }
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-
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- return_VOID;
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-}
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-
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-/*******************************************************************************
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- *
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- * FUNCTION: acpi_ex_relinquish_interpreter
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- *
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- * PARAMETERS: None
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- *
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- * RETURN: None
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- *
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- * DESCRIPTION: Exit the interpreter execution region, from within the
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- * interpreter - before attempting an operation that will possibly
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- * block the running thread.
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- *
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- * Cases where the interpreter is unlocked internally
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- * 1) Method to be blocked on a Sleep() AML opcode
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- * 2) Method to be blocked on an Acquire() AML opcode
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- * 3) Method to be blocked on a Wait() AML opcode
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- * 4) Method to be blocked to acquire the global lock
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- * 5) Method to be blocked waiting to execute a serialized control method
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- * that is currently executing
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- * 6) About to invoke a user-installed opregion handler
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- *
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- ******************************************************************************/
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-
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-void acpi_ex_relinquish_interpreter(void)
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-{
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- ACPI_FUNCTION_TRACE(ex_relinquish_interpreter);
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-
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- /*
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- * If the global serialized flag is set, do not release the interpreter.
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- * This forces the interpreter to be single threaded.
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- */
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- if (!acpi_gbl_all_methods_serialized) {
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- acpi_ex_exit_interpreter();
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+ ACPI_ERROR((AE_INFO, "Could not release interpreter mutex"));
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}
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}
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return_VOID;
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return_VOID;
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@@ -205,8 +141,8 @@ void acpi_ex_relinquish_interpreter(void)
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*
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*
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* RETURN: none
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* RETURN: none
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*
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*
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- * DESCRIPTION: Truncate an ACPI Integer to 32 bits if the execution mode is
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- * 32-bit, as determined by the revision of the DSDT.
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+ * DESCRIPTION: Truncate a number to 32-bits if the currently executing method
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+ * belongs to a 32-bit ACPI table.
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*
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*
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******************************************************************************/
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******************************************************************************/
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