From: Bob Moore <robert.moore@xxxxxxxxx>
The current implemenation of _OSI within ACPICA only allows other
control methods to execute _OSI. This change allows the host
OS to execute _OSI via the AcpiEvaluateObject interface. _OSI
is a special method -- it does not exist in the AML code, it is
implemented within ACPICA.
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
drivers/acpi/dispatcher/dsmethod.c | 3 +++
drivers/acpi/parser/psparse.c | 4 ++++
drivers/acpi/parser/psxface.c | 17 +++++++++++++++++
drivers/acpi/utilities/uteval.c | 6 +++---
4 files changed, 27 insertions(+), 3 deletions(-)
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index 279a5a6..77b7039 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -412,6 +412,9 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
status = obj_desc->method.implementation(next_walk_state);
+ if (status == AE_OK) {
+ status = AE_CTRL_TERMINATE;
+ }
}
return_ACPI_STATUS(status);
diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c
index dfd3d90..5156203 100644
--- a/drivers/acpi/parser/psparse.c
+++ b/drivers/acpi/parser/psparse.c
@@ -447,6 +447,10 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
walk_state, walk_state->parser_state.aml,
walk_state->parser_state.aml_size));
+ if (!walk_state->parser_state.aml) {
+ return_ACPI_STATUS(AE_NULL_OBJECT);
+ }
+
/* Create and initialize a new thread state */
thread = acpi_ut_create_thread_state();
diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c
index 270469a..4985ce5 100644
--- a/drivers/acpi/parser/psxface.c
+++ b/drivers/acpi/parser/psxface.c
@@ -45,6 +45,7 @@
#include <acpi/acparser.h>
#include <acpi/acdispat.h>
#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psxface")
@@ -278,6 +279,22 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
goto cleanup;
}
+ /* Invoke an internal method if necessary */
+
+ if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
+ status = info->obj_desc->method.implementation(walk_state);
+ info->return_object = walk_state->return_desc;
+
+ /* Cleanup states */
+
+ acpi_ds_scope_stack_clear(walk_state);
+ acpi_ps_cleanup_scope(&walk_state->parser_state);
+ acpi_ds_terminate_control_method(walk_state->method_desc,
+ walk_state);
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+
/* Parse the AML */
status = acpi_ps_parse_aml(walk_state);
diff --git a/drivers/acpi/utilities/uteval.c b/drivers/acpi/utilities/uteval.c
index 352747e..df2b511 100644
--- a/drivers/acpi/utilities/uteval.c
+++ b/drivers/acpi/utilities/uteval.c
@@ -129,7 +129,7 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
/* The interface is supported */
- return_ACPI_STATUS(AE_CTRL_TERMINATE);
+ return_ACPI_STATUS(AE_OK);
}
}
@@ -143,13 +143,13 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
/* The interface is supported */
- return_ACPI_STATUS(AE_CTRL_TERMINATE);
+ return_ACPI_STATUS(AE_OK);
}
/* The interface is not supported */
return_desc->integer.value = 0;
- return_ACPI_STATUS(AE_CTRL_TERMINATE);
+ return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
--
1.5.6.6
--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
