ACPICA: AML Parser: Add debug option to dump parse trees

Debug level 0x00800000 will dump the current parse tree
just before it is deleted.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/acpica/pswalk.c b/drivers/acpi/acpica/pswalk.c
index e0a442b..bd6af8c 100644 (file)
--- a/drivers/acpi/acpica/pswalk.c
+++ b/drivers/acpi/acpica/pswalk.c
@@ -25,22 +25,48 @@ ACPI_MODULE_NAME("pswalk")
  * DESCRIPTION: Delete a portion of or an entire parse tree.
  *
  ******************************************************************************/
+#include "amlcode.h"
 void acpi_ps_delete_parse_tree(union acpi_parse_object *subtree_root)
 {
        union acpi_parse_object *op = subtree_root;
        union acpi_parse_object *next = NULL;
        union acpi_parse_object *parent = NULL;
+       u32 level = 0;
 
        ACPI_FUNCTION_TRACE_PTR(ps_delete_parse_tree, subtree_root);
 
+       ACPI_DEBUG_PRINT((ACPI_DB_PARSE_TREES, " root %p\n", subtree_root));
+
        /* Visit all nodes in the subtree */
 
        while (op) {
-
-               /* Check if we are not ascending */
-
                if (op != parent) {
 
+                       /* This is the descending case */
+
+                       if (ACPI_IS_DEBUG_ENABLED
+                           (ACPI_LV_PARSE_TREES, _COMPONENT)) {
+
+                               /* This debug option will print the entire parse tree */
+
+                               acpi_os_printf("      %*.s%s %p", (level * 4),
+                                              " ",
+                                              acpi_ps_get_opcode_name(op->
+                                                                      common.
+                                                                      aml_opcode),
+                                              op);
+
+                               if (op->named.aml_opcode == AML_INT_NAMEPATH_OP) {
+                                       acpi_os_printf("  %4.4s",
+                                                      op->common.value.string);
+                               }
+                               if (op->named.aml_opcode == AML_STRING_OP) {
+                                       acpi_os_printf("  %s",
+                                                      op->common.value.string);
+                               }
+                               acpi_os_printf("\n");
+                       }
+
                        /* Look for an argument or child of the current op */
 
                        next = acpi_ps_get_arg(op, 0);
@@ -49,6 +75,7 @@ void acpi_ps_delete_parse_tree(union acpi_parse_object *subtree_root)
                                /* Still going downward in tree (Op is not completed yet) */
 
                                op = next;
+                               level++;
                                continue;
                        }
                }
@@ -69,6 +96,7 @@ void acpi_ps_delete_parse_tree(union acpi_parse_object *subtree_root)
                if (next) {
                        op = next;
                } else {
+                       level--;
                        op = parent;
                }
        }

diff --git a/include/acpi/acoutput.h b/include/acpi/acoutput.h
index 0a6c5bd..3a26aa7 100644 (file)
--- a/include/acpi/acoutput.h
+++ b/include/acpi/acoutput.h
@@ -80,7 +80,8 @@
 #define ACPI_LV_ALLOCATIONS         0x00100000
 #define ACPI_LV_FUNCTIONS           0x00200000
 #define ACPI_LV_OPTIMIZATIONS       0x00400000
-#define ACPI_LV_VERBOSITY2          0x00700000 | ACPI_LV_VERBOSITY1
+#define ACPI_LV_PARSE_TREES         0x00800000
+#define ACPI_LV_VERBOSITY2          0x00F00000 | ACPI_LV_VERBOSITY1
 #define ACPI_LV_ALL                 ACPI_LV_VERBOSITY2
 
 /* Trace verbosity level 3 [Threading, I/O, and Interrupts] */
@@ -131,6 +132,7 @@
 #define ACPI_DB_TABLES              ACPI_DEBUG_LEVEL (ACPI_LV_TABLES)
 #define ACPI_DB_FUNCTIONS           ACPI_DEBUG_LEVEL (ACPI_LV_FUNCTIONS)
 #define ACPI_DB_OPTIMIZATIONS       ACPI_DEBUG_LEVEL (ACPI_LV_OPTIMIZATIONS)
+#define ACPI_DB_PARSE_TREES         ACPI_DEBUG_LEVEL (ACPI_LV_PARSE_TREES)
 #define ACPI_DB_VALUES              ACPI_DEBUG_LEVEL (ACPI_LV_VALUES)
 #define ACPI_DB_OBJECTS             ACPI_DEBUG_LEVEL (ACPI_LV_OBJECTS)
 #define ACPI_DB_ALLOCATIONS         ACPI_DEBUG_LEVEL (ACPI_LV_ALLOCATIONS)