diff options
author | Avi Kivity <avi@redhat.com> | 2012-08-05 13:25:10 +0300 |
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committer | Avi Kivity <avi@redhat.com> | 2012-08-05 13:25:10 +0300 |
commit | fe56097b23b1303b894eefd91582e4a64247d03f (patch) | |
tree | 4b3ab60eb19e8cfe2884e2da66dd4e4e25ae2274 /drivers/acpi/acpica/dsfield.c | |
parent | e115676e042f4d9268c6b6d8cb7dc962aa6cfd7d (diff) | |
parent | e7882d6c40874a5b5033ca85f7508a602a60b662 (diff) |
Merge remote-tracking branch 'upstream' into next
- bring back critical fixes (esp. aa67f6096c19bc)
- provide an updated base for development
* upstream: (4334 commits)
missed mnt_drop_write() in do_dentry_open()
UBIFS: nuke pdflush from comments
gfs2: nuke pdflush from comments
drbd: nuke pdflush from comments
nilfs2: nuke write_super from comments
hfs: nuke write_super from comments
vfs: nuke pdflush from comments
jbd/jbd2: nuke write_super from comments
btrfs: nuke pdflush from comments
btrfs: nuke write_super from comments
ext4: nuke pdflush from comments
ext4: nuke write_super from comments
ext3: nuke write_super from comments
Documentation: fix the VM knobs descritpion WRT pdflush
Documentation: get rid of write_super
vfs: kill write_super and sync_supers
ACPI processor: Fix tick_broadcast_mask online/offline regression
ACPI: Only count valid srat memory structures
ACPI: Untangle a return statement for better readability
Linux 3.6-rc1
...
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'drivers/acpi/acpica/dsfield.c')
-rw-r--r-- | drivers/acpi/acpica/dsfield.c | 103 |
1 files changed, 92 insertions, 11 deletions
diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c index cd243cf2cab..3da6fd8530c 100644 --- a/drivers/acpi/acpica/dsfield.c +++ b/drivers/acpi/acpica/dsfield.c @@ -53,16 +53,84 @@ ACPI_MODULE_NAME("dsfield") /* Local prototypes */ +#ifdef ACPI_ASL_COMPILER +#include "acdisasm.h" +static acpi_status +acpi_ds_create_external_region(acpi_status lookup_status, + union acpi_parse_object *op, + char *path, + struct acpi_walk_state *walk_state, + struct acpi_namespace_node **node); +#endif + static acpi_status acpi_ds_get_field_names(struct acpi_create_field_info *info, struct acpi_walk_state *walk_state, union acpi_parse_object *arg); +#ifdef ACPI_ASL_COMPILER +/******************************************************************************* + * + * FUNCTION: acpi_ds_create_external_region (iASL Disassembler only) + * + * PARAMETERS: lookup_status - Status from ns_lookup operation + * op - Op containing the Field definition and args + * path - Pathname of the region + * ` walk_state - Current method state + * node - Where the new region node is returned + * + * RETURN: Status + * + * DESCRIPTION: Add region to the external list if NOT_FOUND. Create a new + * region node/object. + * + ******************************************************************************/ + +static acpi_status +acpi_ds_create_external_region(acpi_status lookup_status, + union acpi_parse_object *op, + char *path, + struct acpi_walk_state *walk_state, + struct acpi_namespace_node **node) +{ + acpi_status status; + union acpi_operand_object *obj_desc; + + if (lookup_status != AE_NOT_FOUND) { + return (lookup_status); + } + + /* + * Table disassembly: + * operation_region not found. Generate an External for it, and + * insert the name into the namespace. + */ + acpi_dm_add_to_external_list(op, path, ACPI_TYPE_REGION, 0); + status = acpi_ns_lookup(walk_state->scope_info, path, ACPI_TYPE_REGION, + ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, + walk_state, node); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Must create and install a region object for the new node */ + + obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_REGION); + if (!obj_desc) { + return (AE_NO_MEMORY); + } + + obj_desc->region.node = *node; + status = acpi_ns_attach_object(*node, obj_desc, ACPI_TYPE_REGION); + return (status); +} +#endif + /******************************************************************************* * * FUNCTION: acpi_ds_create_buffer_field * - * PARAMETERS: Op - Current parse op (create_xXField) + * PARAMETERS: op - Current parse op (create_XXField) * walk_state - Current state * * RETURN: Status @@ -99,7 +167,7 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op, arg = acpi_ps_get_arg(op, 3); } else { - /* For all other create_xXXField operators, name is the 3rd argument */ + /* For all other create_XXXField operators, name is the 3rd argument */ arg = acpi_ps_get_arg(op, 2); } @@ -203,9 +271,9 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op, * * FUNCTION: acpi_ds_get_field_names * - * PARAMETERS: Info - create_field info structure + * PARAMETERS: info - create_field info structure * ` walk_state - Current method state - * Arg - First parser arg for the field name list + * arg - First parser arg for the field name list * * RETURN: Status * @@ -234,10 +302,10 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info, while (arg) { /* * Four types of field elements are handled: - * 1) Name - Enters a new named field into the namespace - * 2) Offset - specifies a bit offset + * 1) name - Enters a new named field into the namespace + * 2) offset - specifies a bit offset * 3) access_as - changes the access mode/attributes - * 4) Connection - Associate a resource template with the field + * 4) connection - Associate a resource template with the field */ switch (arg->common.aml_opcode) { case AML_INT_RESERVEDFIELD_OP: @@ -389,7 +457,7 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info, * * FUNCTION: acpi_ds_create_field * - * PARAMETERS: Op - Op containing the Field definition and args + * PARAMETERS: op - Op containing the Field definition and args * region_node - Object for the containing Operation Region * ` walk_state - Current method state * @@ -413,12 +481,19 @@ acpi_ds_create_field(union acpi_parse_object *op, /* First arg is the name of the parent op_region (must already exist) */ arg = op->common.value.arg; + if (!region_node) { status = acpi_ns_lookup(walk_state->scope_info, arg->common.value.name, ACPI_TYPE_REGION, ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, walk_state, ®ion_node); +#ifdef ACPI_ASL_COMPILER + status = acpi_ds_create_external_region(status, arg, + arg->common.value.name, + walk_state, + ®ion_node); +#endif if (ACPI_FAILURE(status)) { ACPI_ERROR_NAMESPACE(arg->common.value.name, status); return_ACPI_STATUS(status); @@ -446,7 +521,7 @@ acpi_ds_create_field(union acpi_parse_object *op, * * FUNCTION: acpi_ds_init_field_objects * - * PARAMETERS: Op - Op containing the Field definition and args + * PARAMETERS: op - Op containing the Field definition and args * ` walk_state - Current method state * * RETURN: Status @@ -561,7 +636,7 @@ acpi_ds_init_field_objects(union acpi_parse_object *op, * * FUNCTION: acpi_ds_create_bank_field * - * PARAMETERS: Op - Op containing the Field definition and args + * PARAMETERS: op - Op containing the Field definition and args * region_node - Object for the containing Operation Region * walk_state - Current method state * @@ -591,6 +666,12 @@ acpi_ds_create_bank_field(union acpi_parse_object *op, arg->common.value.name, ACPI_TYPE_REGION, ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, walk_state, ®ion_node); +#ifdef ACPI_ASL_COMPILER + status = acpi_ds_create_external_region(status, arg, + arg->common.value.name, + walk_state, + ®ion_node); +#endif if (ACPI_FAILURE(status)) { ACPI_ERROR_NAMESPACE(arg->common.value.name, status); return_ACPI_STATUS(status); @@ -645,7 +726,7 @@ acpi_ds_create_bank_field(union acpi_parse_object *op, * * FUNCTION: acpi_ds_create_index_field * - * PARAMETERS: Op - Op containing the Field definition and args + * PARAMETERS: op - Op containing the Field definition and args * region_node - Object for the containing Operation Region * ` walk_state - Current method state * |