ACPICA: Add starting offset parameter to common dump buffer routine

Rename the dump buffer routines. Offset parameter can specify the
buffer starting offset that is used when displaying each line of
the buffer.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/acpica/acmacros.h

@@ -460,7 +460,7 @@
 #define ACPI_DUMP_OPERANDS(a, b ,c)     acpi_ex_dump_operands(a, b, c)
 #define ACPI_DUMP_ENTRY(a, b)           acpi_ns_dump_entry (a, b)
 #define ACPI_DUMP_PATHNAME(a, b, c, d)  acpi_ns_dump_pathname(a, b, c, d)
-#define ACPI_DUMP_BUFFER(a, b)          acpi_ut_dump_buffer((u8 *) a, b, DB_BYTE_DISPLAY, _COMPONENT)
+#define ACPI_DUMP_BUFFER(a, b)          acpi_ut_debug_dump_buffer((u8 *) a, b, DB_BYTE_DISPLAY, _COMPONENT)
 
 #else
 /*

drivers/acpi/acpica/acutils.h

@@ -305,9 +305,10 @@ acpi_ut_ptr_exit(u32 line_number,
 		 const char *function_name,
 		 const char *module_name, u32 component_id, u8 *ptr);
 
-void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id);
+void
+acpi_ut_debug_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id);
 
-void acpi_ut_dump_buffer2(u8 *buffer, u32 count, u32 display);
+void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 offset);
 
 void acpi_ut_report_error(char *module_name, u32 line_number);
 

drivers/acpi/acpica/exdebug.c

@@ -145,10 +145,10 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
 	case ACPI_TYPE_BUFFER:
 
 		acpi_os_printf("[0x%.2X]\n", (u32)source_desc->buffer.length);
-		acpi_ut_dump_buffer2(source_desc->buffer.pointer,
-				     (source_desc->buffer.length < 256) ?
-				     source_desc->buffer.length : 256,
-				     DB_BYTE_DISPLAY);
+		acpi_ut_dump_buffer(source_desc->buffer.pointer,
+				    (source_desc->buffer.length < 256) ?
+				    source_desc->buffer.length : 256,
+				    DB_BYTE_DISPLAY, 0);
 		break;
 
 	case ACPI_TYPE_STRING:

drivers/acpi/acpica/exdump.c

@@ -942,10 +942,11 @@ acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc,
 		acpi_os_printf("[Buffer] Length %.2X = ",
 			       obj_desc->buffer.length);
 		if (obj_desc->buffer.length) {
-			acpi_ut_dump_buffer(ACPI_CAST_PTR
-					    (u8, obj_desc->buffer.pointer),
-					    obj_desc->buffer.length,
-					    DB_DWORD_DISPLAY, _COMPONENT);
+			acpi_ut_debug_dump_buffer(ACPI_CAST_PTR
+						  (u8,
+						   obj_desc->buffer.pointer),
+						  obj_desc->buffer.length,
+						  DB_DWORD_DISPLAY, _COMPONENT);
 		} else {
 			acpi_os_printf("\n");
 		}

drivers/acpi/acpica/psloop.c

@@ -133,7 +133,7 @@ static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
 
 	case AML_CLASS_UNKNOWN:
 
-		/* The opcode is unrecognized. Just skip unknown opcodes */
+		/* The opcode is unrecognized. Complain and skip unknown opcodes */
 
 		if (walk_state->pass_number == 2) {
 			ACPI_ERROR((AE_INFO,
@@ -142,28 +142,34 @@ static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
 				    walk_state->aml_offset +
 				    sizeof(struct acpi_table_header)));
 
-			ACPI_DUMP_BUFFER(walk_state->parser_state.aml, 128);
+			ACPI_DUMP_BUFFER(walk_state->parser_state.aml - 16, 48);
 
 #ifdef ACPI_ASL_COMPILER
-
+			/*
+			 * This is executed for the disassembler only. Output goes
+			 * to the disassembled ASL output file.
+			 */
 			acpi_os_printf
 			    ("/*\nError: Unknown opcode 0x%.2X at table offset 0x%.4X, context:\n",
 			     walk_state->opcode,
 			     walk_state->aml_offset +
 			     sizeof(struct acpi_table_header));
 
-			/* TBD: Pass current offset to dump_buffer */
+			/* Dump the context surrounding the invalid opcode */
 
-			acpi_ut_dump_buffer2(((u8 *)walk_state->parser_state.
-					      aml - 16), 48, DB_BYTE_DISPLAY);
+			acpi_ut_dump_buffer(((u8 *)walk_state->parser_state.
+					     aml - 16), 48, DB_BYTE_DISPLAY,
+					    walk_state->aml_offset +
+					    sizeof(struct acpi_table_header) -
+					    16);
 			acpi_os_printf(" */\n");
 #endif
 		}
 
-		/* Increment past one or two-byte opcode */
+		/* Increment past one-byte or two-byte opcode */
 
 		walk_state->parser_state.aml++;
-		if (walk_state->opcode > 0xFF) {
+		if (walk_state->opcode > 0xFF) {	/* Can only happen if first byte is 0x5B */
 			walk_state->parser_state.aml++;
 		}
 

drivers/acpi/acpica/utdebug.c

@@ -513,7 +513,7 @@ acpi_ut_ptr_exit(u32 line_number,
  * PARAMETERS:  buffer              - Buffer to dump
  *              count               - Amount to dump, in bytes
  *              display             - BYTE, WORD, DWORD, or QWORD display
- *              component_ID        - Caller's component ID
+ *              offset              - Beginning buffer offset (display only)
  *
  * RETURN:      None
  *
@@ -521,7 +521,7 @@ acpi_ut_ptr_exit(u32 line_number,
  *
  ******************************************************************************/
 
-void acpi_ut_dump_buffer2(u8 *buffer, u32 count, u32 display)
+void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 base_offset)
 {
 	u32 i = 0;
 	u32 j;
@@ -543,7 +543,7 @@ void acpi_ut_dump_buffer2(u8 *buffer, u32 count, u32 display)
 
 		/* Print current offset */
 
-		acpi_os_printf("%6.4X: ", i);
+		acpi_os_printf("%6.4X: ", (base_offset + i));
 
 		/* Print 16 hex chars */
 
@@ -625,7 +625,7 @@ void acpi_ut_dump_buffer2(u8 *buffer, u32 count, u32 display)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ut_dump_buffer
+ * FUNCTION:    acpi_ut_debug_dump_buffer
  *
  * PARAMETERS:  buffer              - Buffer to dump
  *              count               - Amount to dump, in bytes
@@ -638,7 +638,8 @@ void acpi_ut_dump_buffer2(u8 *buffer, u32 count, u32 display)
  *
  ******************************************************************************/
 
-void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id)
+void
+acpi_ut_debug_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id)
 {
 
 	/* Only dump the buffer if tracing is enabled */
@@ -648,5 +649,5 @@ void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id)
 		return;
 	}
 
-	acpi_ut_dump_buffer2(buffer, count, display);
+	acpi_ut_dump_buffer(buffer, count, display, 0);
 }