diff options
Diffstat (limited to 'drivers/acpi/acpica/exutils.c')
| -rw-r--r-- | drivers/acpi/acpica/exutils.c | 82 |
1 files changed, 11 insertions, 71 deletions
diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c index 99dc7b287d5..d9d72dff2a7 100644 --- a/drivers/acpi/acpica/exutils.c +++ b/drivers/acpi/acpica/exutils.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -100,37 +100,6 @@ void acpi_ex_enter_interpreter(void) /******************************************************************************* * - * FUNCTION: acpi_ex_reacquire_interpreter - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Reacquire the interpreter execution region from within the - * interpreter code. Failure to enter the interpreter region is a - * fatal system error. Used in conjunction with - * relinquish_interpreter - * - ******************************************************************************/ - -void acpi_ex_reacquire_interpreter(void) -{ - ACPI_FUNCTION_TRACE(ex_reacquire_interpreter); - - /* - * If the global serialized flag is set, do not release the interpreter, - * since it was not actually released by acpi_ex_relinquish_interpreter. - * This forces the interpreter to be single threaded. - */ - if (!acpi_gbl_all_methods_serialized) { - acpi_ex_enter_interpreter(); - } - - return_VOID; -} - -/******************************************************************************* - * * FUNCTION: acpi_ex_exit_interpreter * * PARAMETERS: None @@ -139,7 +108,16 @@ void acpi_ex_reacquire_interpreter(void) * * DESCRIPTION: Exit the interpreter execution region. This is the top level * routine used to exit the interpreter when all processing has - * been completed. + * been completed, or when the method blocks. + * + * Cases where the interpreter is unlocked internally: + * 1) Method will be blocked on a Sleep() AML opcode + * 2) Method will be blocked on an Acquire() AML opcode + * 3) Method will be blocked on a Wait() AML opcode + * 4) Method will be blocked to acquire the global lock + * 5) Method will be blocked waiting to execute a serialized control + * method that is currently executing + * 6) About to invoke a user-installed opregion handler * ******************************************************************************/ @@ -160,44 +138,6 @@ void acpi_ex_exit_interpreter(void) /******************************************************************************* * - * FUNCTION: acpi_ex_relinquish_interpreter - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Exit the interpreter execution region, from within the - * interpreter - before attempting an operation that will possibly - * block the running thread. - * - * Cases where the interpreter is unlocked internally - * 1) Method to be blocked on a Sleep() AML opcode - * 2) Method to be blocked on an Acquire() AML opcode - * 3) Method to be blocked on a Wait() AML opcode - * 4) Method to be blocked to acquire the global lock - * 5) Method to be blocked waiting to execute a serialized control method - * that is currently executing - * 6) About to invoke a user-installed opregion handler - * - ******************************************************************************/ - -void acpi_ex_relinquish_interpreter(void) -{ - ACPI_FUNCTION_TRACE(ex_relinquish_interpreter); - - /* - * If the global serialized flag is set, do not release the interpreter. - * This forces the interpreter to be single threaded. - */ - if (!acpi_gbl_all_methods_serialized) { - acpi_ex_exit_interpreter(); - } - - return_VOID; -} - -/******************************************************************************* - * * FUNCTION: acpi_ex_truncate_for32bit_table * * PARAMETERS: obj_desc - Object to be truncated |