diff options
Diffstat (limited to 'drivers/acpi/parser')
-rw-r--r-- | drivers/acpi/parser/psloop.c | 9 | ||||
-rw-r--r-- | drivers/acpi/parser/psutils.c | 4 | ||||
-rw-r--r-- | drivers/acpi/parser/psxface.c | 242 |
3 files changed, 143 insertions, 112 deletions
diff --git a/drivers/acpi/parser/psloop.c b/drivers/acpi/parser/psloop.c index edf8aa5f86c..551d54bdbec 100644 --- a/drivers/acpi/parser/psloop.c +++ b/drivers/acpi/parser/psloop.c @@ -55,8 +55,6 @@ #include <acpi/acparser.h> #include <acpi/acdispat.h> #include <acpi/amlcode.h> -#include <acpi/acnamesp.h> -#include <acpi/acinterp.h> #define _COMPONENT ACPI_PARSER ACPI_MODULE_NAME ("psloop") @@ -410,11 +408,9 @@ acpi_ps_parse_loop ( /* Special processing for certain opcodes */ -#define ACPI_NO_MODULE_LEVEL_CODE - /* TBD (remove): Temporary mechanism to disable this code if needed */ -#ifndef ACPI_NO_MODULE_LEVEL_CODE +#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE if ((walk_state->pass_number <= ACPI_IMODE_LOAD_PASS1) && ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) == 0)) { @@ -431,6 +427,9 @@ acpi_ps_parse_loop ( case AML_ELSE_OP: case AML_WHILE_OP: + ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, + "Pass1: Skipping an If/Else/While body\n")); + /* Skip body of if/else/while in pass 1 */ parser_state->aml = parser_state->pkg_end; diff --git a/drivers/acpi/parser/psutils.c b/drivers/acpi/parser/psutils.c index 19a27020eee..4221b41ae1a 100644 --- a/drivers/acpi/parser/psutils.c +++ b/drivers/acpi/parser/psutils.c @@ -200,10 +200,10 @@ acpi_ps_free_op ( } if (op->common.flags & ACPI_PARSEOP_GENERIC) { - acpi_os_release_object (acpi_gbl_ps_node_cache, op); + (void) acpi_os_release_object (acpi_gbl_ps_node_cache, op); } else { - acpi_os_release_object (acpi_gbl_ps_node_ext_cache, op); + (void) acpi_os_release_object (acpi_gbl_ps_node_ext_cache, op); } } diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c index 5279b51e778..d1541fabaf0 100644 --- a/drivers/acpi/parser/psxface.c +++ b/drivers/acpi/parser/psxface.c @@ -46,19 +46,30 @@ #include <acpi/acparser.h> #include <acpi/acdispat.h> #include <acpi/acinterp.h> -#include <acpi/acnamesp.h> #define _COMPONENT ACPI_PARSER ACPI_MODULE_NAME ("psxface") +/* Local Prototypes */ + +static acpi_status +acpi_ps_execute_pass ( + struct acpi_parameter_info *info); + +static void +acpi_ps_update_parameter_list ( + struct acpi_parameter_info *info, + u16 action); + /******************************************************************************* * - * FUNCTION: acpi_psx_execute + * FUNCTION: acpi_ps_execute_method * * PARAMETERS: Info - Method info block, contains: * Node - Method Node to execute + * obj_desc - Method object * Parameters - List of parameters to pass to the method, * terminated by NULL. Params itself may be * NULL if no parameters are being passed. @@ -67,6 +78,7 @@ * parameter_type - Type of Parameter list * return_object - Where to put method's return value (if * any). If NULL, no value is returned. + * pass_number - Parse or execute pass * * RETURN: Status * @@ -75,174 +87,194 @@ ******************************************************************************/ acpi_status -acpi_psx_execute ( +acpi_ps_execute_method ( struct acpi_parameter_info *info) { acpi_status status; - union acpi_operand_object *obj_desc; - u32 i; - union acpi_parse_object *op; - struct acpi_walk_state *walk_state; - ACPI_FUNCTION_TRACE ("psx_execute"); + ACPI_FUNCTION_TRACE ("ps_execute_method"); - /* Validate the Node and get the attached object */ + /* Validate the Info and method Node */ if (!info || !info->node) { return_ACPI_STATUS (AE_NULL_ENTRY); } - obj_desc = acpi_ns_get_attached_object (info->node); - if (!obj_desc) { - return_ACPI_STATUS (AE_NULL_OBJECT); - } - /* Init for new method, wait on concurrency semaphore */ - status = acpi_ds_begin_method_execution (info->node, obj_desc, NULL); + status = acpi_ds_begin_method_execution (info->node, info->obj_desc, NULL); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); } - if ((info->parameter_type == ACPI_PARAM_ARGS) && - (info->parameters)) { - /* - * The caller "owns" the parameters, so give each one an extra - * reference - */ - for (i = 0; info->parameters[i]; i++) { - acpi_ut_add_reference (info->parameters[i]); - } - } - - /* - * 1) Perform the first pass parse of the method to enter any - * named objects that it creates into the namespace - */ - ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, - "**** Begin Method Parse **** Entry=%p obj=%p\n", - info->node, obj_desc)); - - /* Create and init a Root Node */ - - op = acpi_ps_create_scope_op (); - if (!op) { - status = AE_NO_MEMORY; - goto cleanup1; - } - /* * Get a new owner_id for objects created by this method. Namespace * objects (such as Operation Regions) can be created during the * first pass parse. */ - status = acpi_ut_allocate_owner_id (&obj_desc->method.owner_id); + status = acpi_ut_allocate_owner_id (&info->obj_desc->method.owner_id); if (ACPI_FAILURE (status)) { - goto cleanup2; - } - - /* Create and initialize a new walk state */ - - walk_state = acpi_ds_create_walk_state (obj_desc->method.owner_id, - NULL, NULL, NULL); - if (!walk_state) { - status = AE_NO_MEMORY; - goto cleanup2; + return_ACPI_STATUS (status); } - status = acpi_ds_init_aml_walk (walk_state, op, info->node, - obj_desc->method.aml_start, - obj_desc->method.aml_length, NULL, 1); - if (ACPI_FAILURE (status)) { - goto cleanup3; - } + /* + * The caller "owns" the parameters, so give each one an extra + * reference + */ + acpi_ps_update_parameter_list (info, REF_INCREMENT); - /* Parse the AML */ + /* + * 1) Perform the first pass parse of the method to enter any + * named objects that it creates into the namespace + */ + ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, + "**** Begin Method Parse **** Entry=%p obj=%p\n", + info->node, info->obj_desc)); - status = acpi_ps_parse_aml (walk_state); - acpi_ps_delete_parse_tree (op); + info->pass_number = 1; + status = acpi_ps_execute_pass (info); if (ACPI_FAILURE (status)) { - goto cleanup1; /* Walk state is already deleted */ + goto cleanup; } /* - * 2) Execute the method. Performs second pass parse simultaneously + * 2) Execute the method. Performs second pass parse simultaneously */ ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Begin Method Execution **** Entry=%p obj=%p\n", - info->node, obj_desc)); + info->node, info->obj_desc)); - /* Create and init a Root Node */ + info->pass_number = 3; + status = acpi_ps_execute_pass (info); - op = acpi_ps_create_scope_op (); - if (!op) { - status = AE_NO_MEMORY; - goto cleanup1; + +cleanup: + if (info->obj_desc->method.owner_id) { + acpi_ut_release_owner_id (&info->obj_desc->method.owner_id); } - /* Init new op with the method name and pointer back to the NS node */ + /* Take away the extra reference that we gave the parameters above */ - acpi_ps_set_name (op, info->node->name.integer); - op->common.node = info->node; + acpi_ps_update_parameter_list (info, REF_DECREMENT); - /* Create and initialize a new walk state */ + /* Exit now if error above */ - walk_state = acpi_ds_create_walk_state (0, NULL, NULL, NULL); - if (!walk_state) { - status = AE_NO_MEMORY; - goto cleanup2; + if (ACPI_FAILURE (status)) { + return_ACPI_STATUS (status); } - status = acpi_ds_init_aml_walk (walk_state, op, info->node, - obj_desc->method.aml_start, - obj_desc->method.aml_length, info, 3); - if (ACPI_FAILURE (status)) { - goto cleanup3; + /* + * If the method has returned an object, signal this to the caller with + * a control exception code + */ + if (info->return_object) { + ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Method returned obj_desc=%p\n", + info->return_object)); + ACPI_DUMP_STACK_ENTRY (info->return_object); + + status = AE_CTRL_RETURN_VALUE; } - /* The walk of the parse tree is where we actually execute the method */ + return_ACPI_STATUS (status); +} - status = acpi_ps_parse_aml (walk_state); - goto cleanup2; /* Walk state already deleted */ +/******************************************************************************* + * + * FUNCTION: acpi_ps_update_parameter_list + * + * PARAMETERS: Info - See struct acpi_parameter_info + * (Used: parameter_type and Parameters) + * Action - Add or Remove reference + * + * RETURN: Status + * + * DESCRIPTION: Update reference count on all method parameter objects + * + ******************************************************************************/ -cleanup3: - acpi_ds_delete_walk_state (walk_state); +static void +acpi_ps_update_parameter_list ( + struct acpi_parameter_info *info, + u16 action) +{ + acpi_native_uint i; -cleanup2: - acpi_ps_delete_parse_tree (op); -cleanup1: if ((info->parameter_type == ACPI_PARAM_ARGS) && (info->parameters)) { - /* Take away the extra reference that we gave the parameters above */ + /* Update reference count for each parameter */ for (i = 0; info->parameters[i]; i++) { /* Ignore errors, just do them all */ - (void) acpi_ut_update_object_reference ( - info->parameters[i], REF_DECREMENT); + (void) acpi_ut_update_object_reference (info->parameters[i], action); } } +} - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + +/******************************************************************************* + * + * FUNCTION: acpi_ps_execute_pass + * + * PARAMETERS: Info - See struct acpi_parameter_info + * (Used: pass_number, Node, and obj_desc) + * + * RETURN: Status + * + * DESCRIPTION: Single AML pass: Parse or Execute a control method + * + ******************************************************************************/ + +static acpi_status +acpi_ps_execute_pass ( + struct acpi_parameter_info *info) +{ + acpi_status status; + union acpi_parse_object *op; + struct acpi_walk_state *walk_state; + + + ACPI_FUNCTION_TRACE ("ps_execute_pass"); + + + /* Create and init a Root Node */ + + op = acpi_ps_create_scope_op (); + if (!op) { + return_ACPI_STATUS (AE_NO_MEMORY); } - /* - * If the method has returned an object, signal this to the caller with - * a control exception code - */ - if (info->return_object) { - ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Method returned obj_desc=%p\n", - info->return_object)); - ACPI_DUMP_STACK_ENTRY (info->return_object); + /* Create and initialize a new walk state */ - status = AE_CTRL_RETURN_VALUE; + walk_state = acpi_ds_create_walk_state ( + info->obj_desc->method.owner_id, NULL, NULL, NULL); + if (!walk_state) { + status = AE_NO_MEMORY; + goto cleanup; + } + + status = acpi_ds_init_aml_walk (walk_state, op, info->node, + info->obj_desc->method.aml_start, + info->obj_desc->method.aml_length, + info->pass_number == 1 ? NULL : info, + info->pass_number); + if (ACPI_FAILURE (status)) { + acpi_ds_delete_walk_state (walk_state); + goto cleanup; } + /* Parse the AML */ + + status = acpi_ps_parse_aml (walk_state); + + /* Walk state was deleted by parse_aml */ + +cleanup: + acpi_ps_delete_parse_tree (op); return_ACPI_STATUS (status); } |