These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / drivers / acpi / acpica / dbutils.c
diff --git a/kernel/drivers/acpi/acpica/dbutils.c b/kernel/drivers/acpi/acpica/dbutils.c
new file mode 100644 (file)
index 0000000..86790e0
--- /dev/null
@@ -0,0 +1,457 @@
+/*******************************************************************************
+ *
+ * Module Name: dbutils - AML debugger utilities
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acdebug.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbutils")
+
+/* Local prototypes */
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+acpi_status acpi_db_second_pass_parse(union acpi_parse_object *root);
+
+void acpi_db_dump_buffer(u32 address);
+#endif
+
+static char *gbl_hex_to_ascii = "0123456789ABCDEF";
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_match_argument
+ *
+ * PARAMETERS:  user_argument           - User command line
+ *              arguments               - Array of commands to match against
+ *
+ * RETURN:      Index into command array or ACPI_TYPE_NOT_FOUND if not found
+ *
+ * DESCRIPTION: Search command array for a command match
+ *
+ ******************************************************************************/
+
+acpi_object_type
+acpi_db_match_argument(char *user_argument,
+                      struct acpi_db_argument_info *arguments)
+{
+       u32 i;
+
+       if (!user_argument || user_argument[0] == 0) {
+               return (ACPI_TYPE_NOT_FOUND);
+       }
+
+       for (i = 0; arguments[i].name; i++) {
+               if (strstr(arguments[i].name, user_argument) ==
+                   arguments[i].name) {
+                       return (i);
+               }
+       }
+
+       /* Argument not recognized */
+
+       return (ACPI_TYPE_NOT_FOUND);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_set_output_destination
+ *
+ * PARAMETERS:  output_flags        - Current flags word
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Set the current destination for debugger output. Also sets
+ *              the debug output level accordingly.
+ *
+ ******************************************************************************/
+
+void acpi_db_set_output_destination(u32 output_flags)
+{
+
+       acpi_gbl_db_output_flags = (u8)output_flags;
+
+       if ((output_flags & ACPI_DB_REDIRECTABLE_OUTPUT) &&
+           acpi_gbl_db_output_to_file) {
+               acpi_dbg_level = acpi_gbl_db_debug_level;
+       } else {
+               acpi_dbg_level = acpi_gbl_db_console_debug_level;
+       }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_dump_external_object
+ *
+ * PARAMETERS:  obj_desc        - External ACPI object to dump
+ *              level           - Nesting level.
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Dump the contents of an ACPI external object
+ *
+ ******************************************************************************/
+
+void acpi_db_dump_external_object(union acpi_object *obj_desc, u32 level)
+{
+       u32 i;
+
+       if (!obj_desc) {
+               acpi_os_printf("[Null Object]\n");
+               return;
+       }
+
+       for (i = 0; i < level; i++) {
+               acpi_os_printf(" ");
+       }
+
+       switch (obj_desc->type) {
+       case ACPI_TYPE_ANY:
+
+               acpi_os_printf("[Null Object] (Type=0)\n");
+               break;
+
+       case ACPI_TYPE_INTEGER:
+
+               acpi_os_printf("[Integer] = %8.8X%8.8X\n",
+                              ACPI_FORMAT_UINT64(obj_desc->integer.value));
+               break;
+
+       case ACPI_TYPE_STRING:
+
+               acpi_os_printf("[String] Length %.2X = ",
+                              obj_desc->string.length);
+               acpi_ut_print_string(obj_desc->string.pointer, ACPI_UINT8_MAX);
+               acpi_os_printf("\n");
+               break;
+
+       case ACPI_TYPE_BUFFER:
+
+               acpi_os_printf("[Buffer] Length %.2X = ",
+                              obj_desc->buffer.length);
+               if (obj_desc->buffer.length) {
+                       if (obj_desc->buffer.length > 16) {
+                               acpi_os_printf("\n");
+                       }
+                       acpi_ut_debug_dump_buffer(ACPI_CAST_PTR
+                                                 (u8,
+                                                  obj_desc->buffer.pointer),
+                                                 obj_desc->buffer.length,
+                                                 DB_BYTE_DISPLAY, _COMPONENT);
+               } else {
+                       acpi_os_printf("\n");
+               }
+               break;
+
+       case ACPI_TYPE_PACKAGE:
+
+               acpi_os_printf("[Package] Contains %u Elements:\n",
+                              obj_desc->package.count);
+
+               for (i = 0; i < obj_desc->package.count; i++) {
+                       acpi_db_dump_external_object(&obj_desc->package.
+                                                    elements[i], level + 1);
+               }
+               break;
+
+       case ACPI_TYPE_LOCAL_REFERENCE:
+
+               acpi_os_printf("[Object Reference] = ");
+               acpi_db_display_internal_object(obj_desc->reference.handle,
+                                               NULL);
+               break;
+
+       case ACPI_TYPE_PROCESSOR:
+
+               acpi_os_printf("[Processor]\n");
+               break;
+
+       case ACPI_TYPE_POWER:
+
+               acpi_os_printf("[Power Resource]\n");
+               break;
+
+       default:
+
+               acpi_os_printf("[Unknown Type] %X\n", obj_desc->type);
+               break;
+       }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_prep_namestring
+ *
+ * PARAMETERS:  name            - String to prepare
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Translate all forward slashes and dots to backslashes.
+ *
+ ******************************************************************************/
+
+void acpi_db_prep_namestring(char *name)
+{
+
+       if (!name) {
+               return;
+       }
+
+       acpi_ut_strupr(name);
+
+       /* Convert a leading forward slash to a backslash */
+
+       if (*name == '/') {
+               *name = '\\';
+       }
+
+       /* Ignore a leading backslash, this is the root prefix */
+
+       if (ACPI_IS_ROOT_PREFIX(*name)) {
+               name++;
+       }
+
+       /* Convert all slash path separators to dots */
+
+       while (*name) {
+               if ((*name == '/') || (*name == '\\')) {
+                       *name = '.';
+               }
+
+               name++;
+       }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_local_ns_lookup
+ *
+ * PARAMETERS:  name            - Name to lookup
+ *
+ * RETURN:      Pointer to a namespace node, null on failure
+ *
+ * DESCRIPTION: Lookup a name in the ACPI namespace
+ *
+ * Note: Currently begins search from the root. Could be enhanced to use
+ * the current prefix (scope) node as the search beginning point.
+ *
+ ******************************************************************************/
+
+struct acpi_namespace_node *acpi_db_local_ns_lookup(char *name)
+{
+       char *internal_path;
+       acpi_status status;
+       struct acpi_namespace_node *node = NULL;
+
+       acpi_db_prep_namestring(name);
+
+       /* Build an internal namestring */
+
+       status = acpi_ns_internalize_name(name, &internal_path);
+       if (ACPI_FAILURE(status)) {
+               acpi_os_printf("Invalid namestring: %s\n", name);
+               return (NULL);
+       }
+
+       /*
+        * Lookup the name.
+        * (Uses root node as the search starting point)
+        */
+       status = acpi_ns_lookup(NULL, internal_path, ACPI_TYPE_ANY,
+                               ACPI_IMODE_EXECUTE,
+                               ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE,
+                               NULL, &node);
+       if (ACPI_FAILURE(status)) {
+               acpi_os_printf("Could not locate name: %s, %s\n",
+                              name, acpi_format_exception(status));
+       }
+
+       ACPI_FREE(internal_path);
+       return (node);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_uint32_to_hex_string
+ *
+ * PARAMETERS:  value           - The value to be converted to string
+ *              buffer          - Buffer for result (not less than 11 bytes)
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Convert the unsigned 32-bit value to the hexadecimal image
+ *
+ * NOTE: It is the caller's responsibility to ensure that the length of buffer
+ *       is sufficient.
+ *
+ ******************************************************************************/
+
+void acpi_db_uint32_to_hex_string(u32 value, char *buffer)
+{
+       int i;
+
+       if (value == 0) {
+               strcpy(buffer, "0");
+               return;
+       }
+
+       buffer[8] = '\0';
+
+       for (i = 7; i >= 0; i--) {
+               buffer[i] = gbl_hex_to_ascii[value & 0x0F];
+               value = value >> 4;
+       }
+}
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_second_pass_parse
+ *
+ * PARAMETERS:  root            - Root of the parse tree
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Second pass parse of the ACPI tables. We need to wait until
+ *              second pass to parse the control methods
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_second_pass_parse(union acpi_parse_object *root)
+{
+       union acpi_parse_object *op = root;
+       union acpi_parse_object *method;
+       union acpi_parse_object *search_op;
+       union acpi_parse_object *start_op;
+       acpi_status status = AE_OK;
+       u32 base_aml_offset;
+       struct acpi_walk_state *walk_state;
+
+       ACPI_FUNCTION_ENTRY();
+
+       acpi_os_printf("Pass two parse ....\n");
+
+       while (op) {
+               if (op->common.aml_opcode == AML_METHOD_OP) {
+                       method = op;
+
+                       /* Create a new walk state for the parse */
+
+                       walk_state =
+                           acpi_ds_create_walk_state(0, NULL, NULL, NULL);
+                       if (!walk_state) {
+                               return (AE_NO_MEMORY);
+                       }
+
+                       /* Init the Walk State */
+
+                       walk_state->parser_state.aml =
+                           walk_state->parser_state.aml_start =
+                           method->named.data;
+                       walk_state->parser_state.aml_end =
+                           walk_state->parser_state.pkg_end =
+                           method->named.data + method->named.length;
+                       walk_state->parser_state.start_scope = op;
+
+                       walk_state->descending_callback =
+                           acpi_ds_load1_begin_op;
+                       walk_state->ascending_callback = acpi_ds_load1_end_op;
+
+                       /* Perform the AML parse */
+
+                       status = acpi_ps_parse_aml(walk_state);
+
+                       base_aml_offset =
+                           (method->common.value.arg)->common.aml_offset + 1;
+                       start_op = (method->common.value.arg)->common.next;
+                       search_op = start_op;
+
+                       while (search_op) {
+                               search_op->common.aml_offset += base_aml_offset;
+                               search_op =
+                                   acpi_ps_get_depth_next(start_op, search_op);
+                       }
+               }
+
+               if (op->common.aml_opcode == AML_REGION_OP) {
+
+                       /* TBD: [Investigate] this isn't quite the right thing to do! */
+                       /*
+                        *
+                        * Method = (ACPI_DEFERRED_OP *) Op;
+                        * Status = acpi_ps_parse_aml (Op, Method->Body, Method->body_length);
+                        */
+               }
+
+               if (ACPI_FAILURE(status)) {
+                       break;
+               }
+
+               op = acpi_ps_get_depth_next(root, op);
+       }
+
+       return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_dump_buffer
+ *
+ * PARAMETERS:  address             - Pointer to the buffer
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print a portion of a buffer
+ *
+ ******************************************************************************/
+
+void acpi_db_dump_buffer(u32 address)
+{
+
+       acpi_os_printf("\nLocation %X:\n", address);
+
+       acpi_dbg_level |= ACPI_LV_TABLES;
+       acpi_ut_debug_dump_buffer(ACPI_TO_POINTER(address), 64, DB_BYTE_DISPLAY,
+                                 ACPI_UINT32_MAX);
+}
+#endif