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authorBob Moore <robert.moore@intel.com>2006-03-17 16:44:00 -0500
committerLen Brown <len.brown@intel.com>2006-06-14 01:22:20 -0400
commit61686124f47d7c4b78610346c5f8f9d8a6d46bb5 (patch)
tree6fd91b2c1749907e58ef136107e53d634d7978c4 /drivers/acpi/resources
parent144c87b4e03759214c362d267e01c2905f1ab095 (diff)
[ACPI] ACPICA 20060317
Implemented the use of a cache object for all internal namespace nodes. Since there are about 1000 static nodes in a typical system, this will decrease memory use for cache implementations that minimize per-allocation overhead (such as a slab allocator.) Removed the reference count mechanism for internal namespace nodes, since it was deemed unnecessary. This reduces the size of each namespace node by about 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case, and 32 bytes for the 64-bit case. Optimized several internal data structures to reduce object size on 64-bit platforms by packing data within the 64-bit alignment. This includes the frequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static instances corresponding to the namespace objects. Added two new strings for the predefined _OSI method: "Windows 2001.1 SP1" and "Windows 2006". Split the allocation tracking mechanism out to a separate file, from utalloc.c to uttrack.c. This mechanism appears to be only useful for application-level code. Kernels may wish to not include uttrack.c in distributions. Removed all remnants of the obsolete ACPI_REPORT_* macros and the associated code. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING macros.) Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/resources')
-rw-r--r--drivers/acpi/resources/rscalc.c2
-rw-r--r--drivers/acpi/resources/rscreate.c7
-rw-r--r--drivers/acpi/resources/rslist.c110
-rw-r--r--drivers/acpi/resources/rsxface.c4
4 files changed, 47 insertions, 76 deletions
diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c
index 8e406d992f3b..dd5caa2c8fdd 100644
--- a/drivers/acpi/resources/rscalc.c
+++ b/drivers/acpi/resources/rscalc.c
@@ -456,7 +456,7 @@ acpi_rs_get_list_length(u8 * aml_buffer,
*size_needed += buffer_size;
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
- "Type %.2X, Aml %.2X internal %.2X\n",
+ "Type %.2X, aml_length %.2X internal_length %.2X\n",
acpi_ut_get_resource_type(aml_buffer),
acpi_ut_get_descriptor_length(aml_buffer),
buffer_size));
diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c
index 67c052af7bbe..01488cfc9bae 100644
--- a/drivers/acpi/resources/rscreate.c
+++ b/drivers/acpi/resources/rscreate.c
@@ -75,6 +75,7 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
u8 *aml_start;
acpi_size list_size_needed = 0;
u32 aml_buffer_length;
+ void *resource;
ACPI_FUNCTION_TRACE("rs_create_resource_list");
@@ -107,8 +108,10 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
/* Do the conversion */
- status = acpi_rs_convert_aml_to_resources(aml_start, aml_buffer_length,
- output_buffer->pointer);
+ resource = output_buffer->pointer;
+ status = acpi_ut_walk_aml_resources(aml_start, aml_buffer_length,
+ acpi_rs_convert_aml_to_resources,
+ &resource);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
diff --git a/drivers/acpi/resources/rslist.c b/drivers/acpi/resources/rslist.c
index 6f2d8de39523..50bbb19bf4ae 100644
--- a/drivers/acpi/resources/rslist.c
+++ b/drivers/acpi/resources/rslist.c
@@ -51,92 +51,60 @@ ACPI_MODULE_NAME("rslist")
*
* FUNCTION: acpi_rs_convert_aml_to_resources
*
- * PARAMETERS: Aml - Pointer to the resource byte stream
- * aml_length - Length of Aml
- * output_buffer - Pointer to the buffer that will
- * contain the output structures
+ * PARAMETERS: acpi_walk_aml_callback
+ * resource_ptr - Pointer to the buffer that will
+ * contain the output structures
*
* RETURN: Status
*
- * DESCRIPTION: Takes the resource byte stream and parses it, creating a
- * linked list of resources in the caller's output buffer
+ * DESCRIPTION: Convert an AML resource to an internal representation of the
+ * resource that is aligned and easier to access.
*
******************************************************************************/
acpi_status
-acpi_rs_convert_aml_to_resources(u8 * aml, u32 aml_length, u8 * output_buffer)
+acpi_rs_convert_aml_to_resources(u8 * aml,
+ u32 length,
+ u32 offset,
+ u8 resource_index, void **resource_ptr)
{
- struct acpi_resource *resource = (void *)output_buffer;
+ struct acpi_resource *resource = *resource_ptr;
acpi_status status;
- u8 resource_index;
- u8 *end_aml;
ACPI_FUNCTION_TRACE("rs_convert_aml_to_resources");
- end_aml = aml + aml_length;
-
- /* Loop until end-of-buffer or an end_tag is found */
-
- while (aml < end_aml) {
- /*
- * Check that the input buffer and all subsequent pointers into it
- * are aligned on a native word boundary. Most important on IA64
- */
- if (ACPI_IS_MISALIGNED(resource)) {
- ACPI_WARNING((AE_INFO,
- "Misaligned resource pointer %p",
- resource));
- }
-
- /* Validate the Resource Type and Resource Length */
-
- status = acpi_ut_validate_resource(aml, &resource_index);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Convert the AML byte stream resource to a local resource struct */
-
- status =
- acpi_rs_convert_aml_to_resource(resource,
- ACPI_CAST_PTR(union
- aml_resource,
- aml),
- acpi_gbl_get_resource_dispatch
- [resource_index]);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not convert AML resource (Type %X)",
- *aml));
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
- "Type %.2X, Aml %.2X internal %.2X\n",
- acpi_ut_get_resource_type(aml),
- acpi_ut_get_descriptor_length(aml),
- resource->length));
-
- /* Normal exit on completion of an end_tag resource descriptor */
-
- if (acpi_ut_get_resource_type(aml) ==
- ACPI_RESOURCE_NAME_END_TAG) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Point to the next input AML resource */
-
- aml += acpi_ut_get_descriptor_length(aml);
-
- /* Point to the next structure in the output buffer */
+ /*
+ * Check that the input buffer and all subsequent pointers into it
+ * are aligned on a native word boundary. Most important on IA64
+ */
+ if (ACPI_IS_MISALIGNED(resource)) {
+ ACPI_WARNING((AE_INFO,
+ "Misaligned resource pointer %p", resource));
+ }
- resource =
- ACPI_ADD_PTR(struct acpi_resource, resource,
- resource->length);
+ /* Convert the AML byte stream resource to a local resource struct */
+
+ status =
+ acpi_rs_convert_aml_to_resource(resource,
+ ACPI_CAST_PTR(union aml_resource,
+ aml),
+ acpi_gbl_get_resource_dispatch
+ [resource_index]);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not convert AML resource (Type %X)",
+ *aml));
+ return_ACPI_STATUS(status);
}
- /* Did not find an end_tag resource descriptor */
+ ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
+ "Type %.2X, aml_length %.2X internal_length %.2X\n",
+ acpi_ut_get_resource_type(aml), length,
+ resource->length));
- return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
+ /* Point to the next structure in the output buffer */
+
+ *resource_ptr = ACPI_ADD_PTR(void, resource, resource->length);
+ return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
diff --git a/drivers/acpi/resources/rsxface.c b/drivers/acpi/resources/rsxface.c
index b3feebbd8ca2..1d00d285a5a3 100644
--- a/drivers/acpi/resources/rsxface.c
+++ b/drivers/acpi/resources/rsxface.c
@@ -242,7 +242,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_possible_resources)
acpi_status
acpi_walk_resources(acpi_handle device_handle,
char *name,
- ACPI_WALK_RESOURCE_CALLBACK user_function, void *context)
+ acpi_walk_resource_callback user_function, void *context)
{
acpi_status status;
struct acpi_buffer buffer;
@@ -469,7 +469,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_vendor_resource)
*
* FUNCTION: acpi_rs_match_vendor_resource
*
- * PARAMETERS: ACPI_WALK_RESOURCE_CALLBACK
+ * PARAMETERS: acpi_walk_resource_callback
*
* RETURN: Status
*