Merge tag 'acpi-extra-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to upstream revision
  20170303 which adds a few minor fixes and improvements, update ACPI
  SoC drivers with new device IDs, platform-related information and
  similar, fix the register information in the xpower PMIC driver,
  introduce a concept of "always present" devices to the ACPI device
  enumeration code and use it to fix a problem with one platform, and
  fix a system resume issue related to power resources.

  Specifics:

   - Update the ACPICA code in the kernel to upstream revision 20170303
     which includes:
      * Minor fixes and improvements in the core code (Bob Moore,
        Seunghun Han).
      * Debugger fixes (Colin Ian King, Lv Zheng).
      * Compiler/disassembler improvements (Bob Moore, David Box, Lv
        Zheng).
      * Build-related update (Lv Zheng).

   - Add new device IDs and platform-related information to the ACPI
     drivers for Intel (LPSS) and AMD (APD) SoCs (Hanjun Guo, Hans de
     Goede).

   - Make it possible to quirk ACPI-enumerated devices as "always
     present" on platforms where they are incorrectly reported as not
     present by the AML and add the INT0002 device ID to the list of
     "always present" devices (Hans de Goede).

   - Fix the register information in the xpower PMIC driver and add
     comments to map the registers to symbols used by AML to it (Hans de
     Goede).

   - Move the code turning off unused ACPI power resources during system
     resume to a point after all devices have been resumed to avoid
     issues with power resources that do not behave as expected (Hans de
     Goede)"

* tag 'acpi-extra-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (22 commits)
  ACPI / power: Delay turning off unused power resources after suspend
  ACPI / PMIC: xpower: Fix power_table addresses
  ACPI / LPSS: Call pwm_add_table() for Bay Trail PWM device
  ACPICA: Update version to 20170303
  ACPICA: iasl: add ASL conversion tool
  ACPICA: Local cache support: Allow small cache objects
  ACPICA: Disassembler: Do not unconditionally remove temporary names
  ACPICA: iasl: Fix IORT SMMU GSI disassembling
  ACPICA: Cleanup AML opcode definitions, no functional change
  ACPICA: Debugger: Add interpreter blocking mark for single-step mode
  ACPICA: debugger: fix memory leak on Pathname
  ACPICA: Update for automatic repair code for objects returned by evaluate_object
  ACPICA: Namespace: fix operand cache leak
  ACPICA: Fix several incorrect invocations of ACPICA return macro
  ACPICA: Fix a module for excessive debug output
  ACPICA: Update some function headers, no funtional change
  ACPICA: Disassembler: Enhance resource descriptor detection
  i2c: designware: Add ACPI HID for Hisilicon Hip07/08 I2C controller
  ACPI / APD: Add clock frequency for Hisilicon Hip07/08 I2C controller
  ACPI / bus: Add INT0002 to list of always-present devices
  ...

drivers/acpi/Makefile

@@ -50,6 +50,7 @@ acpi-$(CONFIG_ACPI_REDUCED_HARDWARE_ONLY) += evged.o
 acpi-y				+= sysfs.o
 acpi-y				+= property.o
 acpi-$(CONFIG_X86)		+= acpi_cmos_rtc.o
+acpi-$(CONFIG_X86)		+= x86/utils.o
 acpi-$(CONFIG_DEBUG_FS)		+= debugfs.o
 acpi-$(CONFIG_ACPI_NUMA)	+= numa.o
 acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o

drivers/acpi/acpi_apd.c

@@ -106,6 +106,16 @@ static const struct apd_device_desc vulcan_spi_desc = {
 	.setup = acpi_apd_setup,
 	.fixed_clk_rate = 133000000,
 };
+
+static const struct apd_device_desc hip07_i2c_desc = {
+	.setup = acpi_apd_setup,
+	.fixed_clk_rate = 200000000,
+};
+
+static const struct apd_device_desc hip08_i2c_desc = {
+	.setup = acpi_apd_setup,
+	.fixed_clk_rate = 250000000,
+};
 #endif
 
 #else
@@ -170,6 +180,8 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
 	{ "APMC0D0F", APD_ADDR(xgene_i2c_desc) },
 	{ "BRCM900D", APD_ADDR(vulcan_spi_desc) },
 	{ "CAV900D",  APD_ADDR(vulcan_spi_desc) },
+	{ "HISI0A21", APD_ADDR(hip07_i2c_desc) },
+	{ "HISI0A22", APD_ADDR(hip08_i2c_desc) },
 #endif
 	{ }
 };

drivers/acpi/acpi_lpss.c

@@ -143,6 +143,22 @@ static void lpss_deassert_reset(struct lpss_private_data *pdata)
 	writel(val, pdata->mmio_base + offset);
 }
 
+/*
+ * BYT PWM used for backlight control by the i915 driver on systems without
+ * the Crystal Cove PMIC.
+ */
+static struct pwm_lookup byt_pwm_lookup[] = {
+	PWM_LOOKUP_WITH_MODULE("80860F09:00", 0, "0000:00:02.0",
+			       "pwm_backlight", 0, PWM_POLARITY_NORMAL,
+			       "pwm-lpss-platform"),
+};
+
+static void byt_pwm_setup(struct lpss_private_data *pdata)
+{
+	if (!acpi_dev_present("INT33FD", NULL, -1))
+		pwm_add_table(byt_pwm_lookup, ARRAY_SIZE(byt_pwm_lookup));
+}
+
 #define LPSS_I2C_ENABLE			0x6c
 
 static void byt_i2c_setup(struct lpss_private_data *pdata)
@@ -200,6 +216,7 @@ static const struct lpss_device_desc lpt_sdio_dev_desc = {
 
 static const struct lpss_device_desc byt_pwm_dev_desc = {
 	.flags = LPSS_SAVE_CTX,
+	.setup = byt_pwm_setup,
 };
 
 static const struct lpss_device_desc bsw_pwm_dev_desc = {

drivers/acpi/acpica/Makefile

@@ -2,7 +2,7 @@
 # Makefile for ACPICA Core interpreter
 #
 
-ccflags-y			:= -Os -DBUILDING_ACPICA
+ccflags-y			:= -Os -D_LINUX -DBUILDING_ACPICA
 ccflags-$(CONFIG_ACPI_DEBUG)	+= -DACPI_DEBUG_OUTPUT
 
 # use acpi.o to put all files here into acpi.o modparam namespace

drivers/acpi/acpica/acconvert.h

@@ -0,0 +1,144 @@
+/******************************************************************************
+ *
+ * Module Name: acapps - common include for ACPI applications/tools
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2017, 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.
+ */
+
+#ifndef _ACCONVERT
+#define _ACCONVERT
+
+/* Definitions for comment state */
+
+#define ASL_COMMENT_STANDARD    1
+#define ASLCOMMENT_INLINE       2
+#define ASL_COMMENT_OPEN_PAREN  3
+#define ASL_COMMENT_CLOSE_PAREN 4
+#define ASL_COMMENT_CLOSE_BRACE 5
+
+/* Definitions for comment print function*/
+
+#define AML_COMMENT_STANDARD    1
+#define AMLCOMMENT_INLINE       2
+#define AML_COMMENT_END_NODE    3
+#define AML_NAMECOMMENT         4
+#define AML_COMMENT_CLOSE_BRACE 5
+#define AML_COMMENT_ENDBLK      6
+#define AML_COMMENT_INCLUDE     7
+
+#ifdef ACPI_ASL_COMPILER
+/*
+ * cvcompiler
+ */
+void
+cv_process_comment(struct asl_comment_state current_state,
+		   char *string_buffer, int c1);
+
+void
+cv_process_comment_type2(struct asl_comment_state current_state,
+			 char *string_buffer);
+
+u32 cv_calculate_comment_lengths(union acpi_parse_object *op);
+
+void cv_process_comment_state(char input);
+
+char *cv_append_inline_comment(char *inline_comment, char *to_add);
+
+void cv_add_to_comment_list(char *to_add);
+
+void cv_place_comment(u8 type, char *comment_string);
+
+u32 cv_parse_op_block_type(union acpi_parse_object *op);
+
+struct acpi_comment_node *cv_comment_node_calloc(void);
+
+void cg_write_aml_def_block_comment(union acpi_parse_object *op);
+
+void
+cg_write_one_aml_comment(union acpi_parse_object *op,
+			 char *comment_to_print, u8 input_option);
+
+void cg_write_aml_comment(union acpi_parse_object *op);
+
+/*
+ * cvparser
+ */
+void
+cv_init_file_tree(struct acpi_table_header *table,
+		  u8 *aml_start, u32 aml_length);
+
+void cv_clear_op_comments(union acpi_parse_object *op);
+
+struct acpi_file_node *cv_filename_exists(char *filename,
+					  struct acpi_file_node *head);
+
+void cv_label_file_node(union acpi_parse_object *op);
+
+void
+cv_capture_list_comments(struct acpi_parse_state *parser_state,
+			 struct acpi_comment_node *list_head,
+			 struct acpi_comment_node *list_tail);
+
+void cv_capture_comments_only(struct acpi_parse_state *parser_state);
+
+void cv_capture_comments(struct acpi_walk_state *walk_state);
+
+void cv_transfer_comments(union acpi_parse_object *op);
+
+/*
+ * cvdisasm
+ */
+void cv_switch_files(u32 level, union acpi_parse_object *op);
+
+u8 cv_file_has_switched(union acpi_parse_object *op);
+
+void cv_close_paren_write_comment(union acpi_parse_object *op, u32 level);
+
+void cv_close_brace_write_comment(union acpi_parse_object *op, u32 level);
+
+void
+cv_print_one_comment_list(struct acpi_comment_node *comment_list, u32 level);
+
+void
+cv_print_one_comment_type(union acpi_parse_object *op,
+			  u8 comment_type, char *end_str, u32 level);
+
+#endif
+
+#endif				/* _ACCONVERT */

drivers/acpi/acpica/acglobal.h

@@ -370,6 +370,59 @@ ACPI_GLOBAL(const char, *acpi_gbl_pld_shape_list[]);
 
 #endif
 
+/*
+ * Meant for the -ca option.
+ */
+ACPI_INIT_GLOBAL(char *, acpi_gbl_current_inline_comment, NULL);
+ACPI_INIT_GLOBAL(char *, acpi_gbl_current_end_node_comment, NULL);
+ACPI_INIT_GLOBAL(char *, acpi_gbl_current_open_brace_comment, NULL);
+ACPI_INIT_GLOBAL(char *, acpi_gbl_current_close_brace_comment, NULL);
+
+ACPI_INIT_GLOBAL(char *, acpi_gbl_root_filename, NULL);
+ACPI_INIT_GLOBAL(char *, acpi_gbl_current_filename, NULL);
+ACPI_INIT_GLOBAL(char *, acpi_gbl_current_parent_filename, NULL);
+ACPI_INIT_GLOBAL(char *, acpi_gbl_current_include_filename, NULL);
+
+ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_last_list_head, NULL);
+
+ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_def_blk_comment_list_head,
+		 NULL);
+ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_def_blk_comment_list_tail,
+		 NULL);
+
+ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_reg_comment_list_head,
+		 NULL);
+ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_reg_comment_list_tail,
+		 NULL);
+
+ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_inc_comment_list_head,
+		 NULL);
+ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_inc_comment_list_tail,
+		 NULL);
+
+ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_end_blk_comment_list_head,
+		 NULL);
+ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_end_blk_comment_list_tail,
+		 NULL);
+
+ACPI_INIT_GLOBAL(struct acpi_comment_addr_node,
+		 *acpi_gbl_comment_addr_list_head, NULL);
+
+ACPI_INIT_GLOBAL(union acpi_parse_object, *acpi_gbl_current_scope, NULL);
+
+ACPI_INIT_GLOBAL(struct acpi_file_node, *acpi_gbl_file_tree_root, NULL);
+
+ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_reg_comment_cache);
+ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_comment_addr_cache);
+ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_file_cache);
+
+ACPI_INIT_GLOBAL(u8, gbl_capture_comments, FALSE);
+
+ACPI_INIT_GLOBAL(u8, acpi_gbl_debug_asl_conversion, FALSE);
+ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_conv_debug_file, NULL);
+
+ACPI_GLOBAL(char, acpi_gbl_table_sig[4]);
+
 /*****************************************************************************
  *
  * Application globals

drivers/acpi/acpica/aclocal.h

@@ -53,7 +53,7 @@ typedef u32 acpi_mutex_handle;
 
 /* Total number of aml opcodes defined */
 
-#define AML_NUM_OPCODES                 0x82
+#define AML_NUM_OPCODES                 0x83
 
 /* Forward declarations */
 
@@ -754,21 +754,52 @@ union acpi_parse_value {
 #define ACPI_DISASM_ONLY_MEMBERS(a)
 #endif
 
+#if defined(ACPI_ASL_COMPILER)
+#define ACPI_CONVERTER_ONLY_MEMBERS(a)  a;
+#else
+#define ACPI_CONVERTER_ONLY_MEMBERS(a)
+#endif
+
 #define ACPI_PARSE_COMMON \
-	union acpi_parse_object         *parent;        /* Parent op */\
-	u8                              descriptor_type; /* To differentiate various internal objs */\
-	u8                              flags;          /* Type of Op */\
-	u16                             aml_opcode;     /* AML opcode */\
-	u8                              *aml;           /* Address of declaration in AML */\
-	union acpi_parse_object         *next;          /* Next op */\
-	struct acpi_namespace_node      *node;          /* For use by interpreter */\
-	union acpi_parse_value          value;          /* Value or args associated with the opcode */\
-	u8                              arg_list_length; /* Number of elements in the arg list */\
-	ACPI_DISASM_ONLY_MEMBERS (\
-	u16                             disasm_flags;   /* Used during AML disassembly */\
-	u8                              disasm_opcode;  /* Subtype used for disassembly */\
-	char                            *operator_symbol;/* Used for C-style operator name strings */\
-	char                            aml_op_name[16])	/* Op name (debug only) */
+	union acpi_parse_object         *parent;            /* Parent op */\
+	u8                              descriptor_type;    /* To differentiate various internal objs */\
+	u8                              flags;              /* Type of Op */\
+	u16                             aml_opcode;         /* AML opcode */\
+	u8                              *aml;               /* Address of declaration in AML */\
+	union acpi_parse_object         *next;              /* Next op */\
+	struct acpi_namespace_node      *node;              /* For use by interpreter */\
+	union acpi_parse_value          value;              /* Value or args associated with the opcode */\
+	u8                              arg_list_length;    /* Number of elements in the arg list */\
+	 ACPI_DISASM_ONLY_MEMBERS (\
+	u16                             disasm_flags;       /* Used during AML disassembly */\
+	u8                              disasm_opcode;      /* Subtype used for disassembly */\
+	char                            *operator_symbol;   /* Used for C-style operator name strings */\
+	char                            aml_op_name[16])    /* Op name (debug only) */\
+	 ACPI_CONVERTER_ONLY_MEMBERS (\
+	char                            *inline_comment;    /* Inline comment */\
+	char                            *end_node_comment;  /* End of node comment */\
+	char                            *name_comment;      /* Comment associated with the first parameter of the name node */\
+	char                            *close_brace_comment; /* Comments that come after } on the same as } */\
+	struct acpi_comment_node        *comment_list;      /* comments that appears before this node */\
+	struct acpi_comment_node        *end_blk_comment;   /* comments that at the end of a block but before ) or } */\
+	char                            *cv_filename;       /* Filename associated with this node. Used for ASL/ASL+ converter */\
+	char                            *cv_parent_filename)	/* Parent filename associated with this node. Used for ASL/ASL+ converter */
+
+/* categories of comments */
+
+typedef enum {
+	STANDARD_COMMENT = 1,
+	INLINE_COMMENT,
+	ENDNODE_COMMENT,
+	OPENBRACE_COMMENT,
+	CLOSE_BRACE_COMMENT,
+	STD_DEFBLK_COMMENT,
+	END_DEFBLK_COMMENT,
+	FILENAME_COMMENT,
+	PARENTFILENAME_COMMENT,
+	ENDBLK_COMMENT,
+	INCLUDE_COMMENT
+} asl_comment_types;
 
 /* Internal opcodes for disasm_opcode field above */
 
@@ -784,9 +815,38 @@ union acpi_parse_value {
 #define ACPI_DASM_LNOT_SUFFIX           0x09	/* End  of a Lnot_equal (etc.) pair of opcodes */
 #define ACPI_DASM_HID_STRING            0x0A	/* String is a _HID or _CID */
 #define ACPI_DASM_IGNORE_SINGLE         0x0B	/* Ignore the opcode but not it's children */
-#define ACPI_DASM_SWITCH_PREDICATE      0x0C	/* Object is a predicate for a Switch or Case block */
-#define ACPI_DASM_CASE                  0x0D	/* If/Else is a Case in a Switch/Case block */
-#define ACPI_DASM_DEFAULT               0x0E	/* Else is a Default in a Switch/Case block */
+#define ACPI_DASM_SWITCH                0x0C	/* While is a Switch */
+#define ACPI_DASM_SWITCH_PREDICATE      0x0D	/* Object is a predicate for a Switch or Case block */
+#define ACPI_DASM_CASE                  0x0E	/* If/Else is a Case in a Switch/Case block */
+#define ACPI_DASM_DEFAULT               0x0F	/* Else is a Default in a Switch/Case block */
+
+/*
+ * List struct used in the -ca option
+ */
+struct acpi_comment_node {
+	char *comment;
+	struct acpi_comment_node *next;
+};
+
+struct acpi_comment_addr_node {
+	u8 *addr;
+	struct acpi_comment_addr_node *next;
+};
+
+/*
+ * File node - used for "Include" operator file stack and
+ * depdendency tree for the -ca option
+ */
+struct acpi_file_node {
+	void *file;
+	char *filename;
+	char *file_start;	/* Points to AML and indicates when the AML for this particular file starts. */
+	char *file_end;		/* Points to AML and indicates when the AML for this particular file ends. */
+	struct acpi_file_node *next;
+	struct acpi_file_node *parent;
+	u8 include_written;
+	struct acpi_comment_node *include_comment;
+};
 
 /*
  * Generic operation (for example:  If, While, Store)
@@ -813,6 +873,8 @@ struct acpi_parse_obj_asl {
 	ACPI_PARSE_COMMON union acpi_parse_object *child;
 	union acpi_parse_object *parent_method;
 	char *filename;
+	u8 file_changed;
+	char *parent_filename;
 	char *external_name;
 	char *namepath;
 	char name_seg[4];
@@ -842,6 +904,14 @@ union acpi_parse_object {
 	struct acpi_parse_obj_asl asl;
 };
 
+struct asl_comment_state {
+	u8 comment_type;
+	u32 spaces_before;
+	union acpi_parse_object *latest_parse_node;
+	union acpi_parse_object *parsing_paren_brace_node;
+	u8 capture_comments;
+};
+
 /*
  * Parse state - one state per parser invocation and each control
  * method.

drivers/acpi/acpica/acmacros.h

@@ -493,4 +493,39 @@
 
 #define ACPI_IS_OCTAL_DIGIT(d)              (((char)(d) >= '0') && ((char)(d) <= '7'))
 
+/*
+ * Macors used for the ASL-/ASL+ converter utility
+ */
+#ifdef ACPI_ASL_COMPILER
+
+#define ASL_CV_LABEL_FILENODE(a)         cv_label_file_node(a);
+#define ASL_CV_CAPTURE_COMMENTS_ONLY(a)   cv_capture_comments_only (a);
+#define ASL_CV_CAPTURE_COMMENTS(a)       cv_capture_comments (a);
+#define ASL_CV_TRANSFER_COMMENTS(a)      cv_transfer_comments (a);
+#define ASL_CV_CLOSE_PAREN(a,b)          cv_close_paren_write_comment(a,b);
+#define ASL_CV_CLOSE_BRACE(a,b)          cv_close_brace_write_comment(a,b);
+#define ASL_CV_SWITCH_FILES(a,b)         cv_switch_files(a,b);
+#define ASL_CV_CLEAR_OP_COMMENTS(a)       cv_clear_op_comments(a);
+#define ASL_CV_PRINT_ONE_COMMENT(a,b,c,d) cv_print_one_comment_type (a,b,c,d);
+#define ASL_CV_PRINT_ONE_COMMENT_LIST(a,b) cv_print_one_comment_list (a,b);
+#define ASL_CV_FILE_HAS_SWITCHED(a)       cv_file_has_switched(a)
+#define ASL_CV_INIT_FILETREE(a,b,c)      cv_init_file_tree(a,b,c);
+
+#else
+
+#define ASL_CV_LABEL_FILENODE(a)
+#define ASL_CV_CAPTURE_COMMENTS_ONLY(a)
+#define ASL_CV_CAPTURE_COMMENTS(a)
+#define ASL_CV_TRANSFER_COMMENTS(a)
+#define ASL_CV_CLOSE_PAREN(a,b)          acpi_os_printf (")");
+#define ASL_CV_CLOSE_BRACE(a,b)          acpi_os_printf ("}");
+#define ASL_CV_SWITCH_FILES(a,b)
+#define ASL_CV_CLEAR_OP_COMMENTS(a)
+#define ASL_CV_PRINT_ONE_COMMENT(a,b,c,d)
+#define ASL_CV_PRINT_ONE_COMMENT_LIST(a,b)
+#define ASL_CV_FILE_HAS_SWITCHED(a)       0
+#define ASL_CV_INIT_FILETREE(a,b,c)
+
+#endif
+
 #endif				/* ACMACROS_H */

drivers/acpi/acpica/acopcode.h

@@ -90,6 +90,7 @@
 #define ARGP_BUFFER_OP                  ARGP_LIST3 (ARGP_PKGLENGTH,  ARGP_TERMARG,       ARGP_BYTELIST)
 #define ARGP_BYTE_OP                    ARGP_LIST1 (ARGP_BYTEDATA)
 #define ARGP_BYTELIST_OP                ARGP_LIST1 (ARGP_NAMESTRING)
+#define ARGP_COMMENT_OP                 ARGP_LIST2 (ARGP_BYTEDATA,   ARGP_COMMENT)
 #define ARGP_CONCAT_OP                  ARGP_LIST3 (ARGP_TERMARG,    ARGP_TERMARG,       ARGP_TARGET)
 #define ARGP_CONCAT_RES_OP              ARGP_LIST3 (ARGP_TERMARG,    ARGP_TERMARG,       ARGP_TARGET)
 #define ARGP_COND_REF_OF_OP             ARGP_LIST2 (ARGP_SIMPLENAME, ARGP_TARGET)
@@ -223,6 +224,7 @@
 #define ARGI_BUFFER_OP                  ARGI_LIST1 (ARGI_INTEGER)
 #define ARGI_BYTE_OP                    ARGI_INVALID_OPCODE
 #define ARGI_BYTELIST_OP                ARGI_INVALID_OPCODE
+#define ARGI_COMMENT_OP                 ARGI_INVALID_OPCODE
 #define ARGI_CONCAT_OP                  ARGI_LIST3 (ARGI_ANYTYPE,    ARGI_ANYTYPE,       ARGI_TARGETREF)
 #define ARGI_CONCAT_RES_OP              ARGI_LIST3 (ARGI_BUFFER,     ARGI_BUFFER,        ARGI_TARGETREF)
 #define ARGI_COND_REF_OF_OP             ARGI_LIST2 (ARGI_OBJECT_REF, ARGI_TARGETREF)

drivers/acpi/acpica/amlcode.h

@@ -48,11 +48,8 @@
 
 /* primary opcodes */
 
-#define AML_NULL_CHAR               (u16) 0x00
-
 #define AML_ZERO_OP                 (u16) 0x00
 #define AML_ONE_OP                  (u16) 0x01
-#define AML_UNASSIGNED              (u16) 0x02
 #define AML_ALIAS_OP                (u16) 0x06
 #define AML_NAME_OP                 (u16) 0x08
 #define AML_BYTE_OP                 (u16) 0x0a
@@ -63,17 +60,15 @@
 #define AML_SCOPE_OP                (u16) 0x10
 #define AML_BUFFER_OP               (u16) 0x11
 #define AML_PACKAGE_OP              (u16) 0x12
-#define AML_VAR_PACKAGE_OP          (u16) 0x13	/* ACPI 2.0 */
+#define AML_VARIABLE_PACKAGE_OP     (u16) 0x13	/* ACPI 2.0 */
 #define AML_METHOD_OP               (u16) 0x14
 #define AML_EXTERNAL_OP             (u16) 0x15	/* ACPI 6.0 */
 #define AML_DUAL_NAME_PREFIX        (u16) 0x2e
-#define AML_MULTI_NAME_PREFIX_OP    (u16) 0x2f
-#define AML_NAME_CHAR_SUBSEQ        (u16) 0x30
-#define AML_NAME_CHAR_FIRST         (u16) 0x41
-#define AML_EXTENDED_OP_PREFIX      (u16) 0x5b
+#define AML_MULTI_NAME_PREFIX       (u16) 0x2f
+#define AML_EXTENDED_PREFIX         (u16) 0x5b
 #define AML_ROOT_PREFIX             (u16) 0x5c
 #define AML_PARENT_PREFIX           (u16) 0x5e
-#define AML_LOCAL_OP                (u16) 0x60
+#define AML_FIRST_LOCAL_OP          (u16) 0x60	/* Used for Local op # calculations */
 #define AML_LOCAL0                  (u16) 0x60
 #define AML_LOCAL1                  (u16) 0x61
 #define AML_LOCAL2                  (u16) 0x62
@@ -82,7 +77,7 @@
 #define AML_LOCAL5                  (u16) 0x65
 #define AML_LOCAL6                  (u16) 0x66
 #define AML_LOCAL7                  (u16) 0x67
-#define AML_ARG_OP                  (u16) 0x68
+#define AML_FIRST_ARG_OP            (u16) 0x68	/* Used for Arg op # calculations */
 #define AML_ARG0                    (u16) 0x68
 #define AML_ARG1                    (u16) 0x69
 #define AML_ARG2                    (u16) 0x6a
@@ -93,7 +88,7 @@
 #define AML_STORE_OP                (u16) 0x70
 #define AML_REF_OF_OP               (u16) 0x71
 #define AML_ADD_OP                  (u16) 0x72
-#define AML_CONCAT_OP               (u16) 0x73
+#define AML_CONCATENATE_OP          (u16) 0x73
 #define AML_SUBTRACT_OP             (u16) 0x74
 #define AML_INCREMENT_OP            (u16) 0x75
 #define AML_DECREMENT_OP            (u16) 0x76
@@ -110,7 +105,7 @@
 #define AML_FIND_SET_LEFT_BIT_OP    (u16) 0x81
 #define AML_FIND_SET_RIGHT_BIT_OP   (u16) 0x82
 #define AML_DEREF_OF_OP             (u16) 0x83
-#define AML_CONCAT_RES_OP           (u16) 0x84	/* ACPI 2.0 */
+#define AML_CONCATENATE_TEMPLATE_OP (u16) 0x84	/* ACPI 2.0 */
 #define AML_MOD_OP                  (u16) 0x85	/* ACPI 2.0 */
 #define AML_NOTIFY_OP               (u16) 0x86
 #define AML_SIZE_OF_OP              (u16) 0x87
@@ -122,18 +117,18 @@
 #define AML_CREATE_BIT_FIELD_OP     (u16) 0x8d
 #define AML_OBJECT_TYPE_OP          (u16) 0x8e
 #define AML_CREATE_QWORD_FIELD_OP   (u16) 0x8f	/* ACPI 2.0 */
-#define AML_LAND_OP                 (u16) 0x90
-#define AML_LOR_OP                  (u16) 0x91
-#define AML_LNOT_OP                 (u16) 0x92
-#define AML_LEQUAL_OP               (u16) 0x93
-#define AML_LGREATER_OP             (u16) 0x94
-#define AML_LLESS_OP                (u16) 0x95
+#define AML_LOGICAL_AND_OP          (u16) 0x90
+#define AML_LOGICAL_OR_OP           (u16) 0x91
+#define AML_LOGICAL_NOT_OP          (u16) 0x92
+#define AML_LOGICAL_EQUAL_OP        (u16) 0x93
+#define AML_LOGICAL_GREATER_OP      (u16) 0x94
+#define AML_LOGICAL_LESS_OP         (u16) 0x95
 #define AML_TO_BUFFER_OP            (u16) 0x96	/* ACPI 2.0 */
-#define AML_TO_DECSTRING_OP         (u16) 0x97	/* ACPI 2.0 */
-#define AML_TO_HEXSTRING_OP         (u16) 0x98	/* ACPI 2.0 */
+#define AML_TO_DECIMAL_STRING_OP    (u16) 0x97	/* ACPI 2.0 */
+#define AML_TO_HEX_STRING_OP        (u16) 0x98	/* ACPI 2.0 */
 #define AML_TO_INTEGER_OP           (u16) 0x99	/* ACPI 2.0 */
 #define AML_TO_STRING_OP            (u16) 0x9c	/* ACPI 2.0 */
-#define AML_COPY_OP                 (u16) 0x9d	/* ACPI 2.0 */
+#define AML_COPY_OBJECT_OP          (u16) 0x9d	/* ACPI 2.0 */
 #define AML_MID_OP                  (u16) 0x9e	/* ACPI 2.0 */
 #define AML_CONTINUE_OP             (u16) 0x9f	/* ACPI 2.0 */
 #define AML_IF_OP                   (u16) 0xa0
@@ -142,18 +137,27 @@
 #define AML_NOOP_OP                 (u16) 0xa3
 #define AML_RETURN_OP               (u16) 0xa4
 #define AML_BREAK_OP                (u16) 0xa5
-#define AML_BREAK_POINT_OP          (u16) 0xcc
+#define AML_COMMENT_OP              (u16) 0xa9
+#define AML_BREAKPOINT_OP          (u16) 0xcc
 #define AML_ONES_OP                 (u16) 0xff
 
-/* prefixed opcodes */
+/*
+ * Combination opcodes (actually two one-byte opcodes)
+ * Used by the disassembler and iASL compiler
+ */
+#define AML_LOGICAL_GREATER_EQUAL_OP (u16) 0x9295	/* LNot (LLess) */
+#define AML_LOGICAL_LESS_EQUAL_OP    (u16) 0x9294	/* LNot (LGreater) */
+#define AML_LOGICAL_NOT_EQUAL_OP     (u16) 0x9293	/* LNot (LEqual) */
+
+/* Prefixed (2-byte) opcodes (with AML_EXTENDED_PREFIX) */
 
-#define AML_EXTENDED_OPCODE         (u16) 0x5b00	/* prefix for 2-byte opcodes */
+#define AML_EXTENDED_OPCODE         (u16) 0x5b00	/* Prefix for 2-byte opcodes */
 
 #define AML_MUTEX_OP                (u16) 0x5b01
 #define AML_EVENT_OP                (u16) 0x5b02
-#define AML_SHIFT_RIGHT_BIT_OP      (u16) 0x5b10
-#define AML_SHIFT_LEFT_BIT_OP       (u16) 0x5b11
-#define AML_COND_REF_OF_OP          (u16) 0x5b12
+#define AML_SHIFT_RIGHT_BIT_OP      (u16) 0x5b10	/* Obsolete, not in ACPI spec */
+#define AML_SHIFT_LEFT_BIT_OP       (u16) 0x5b11	/* Obsolete, not in ACPI spec */
+#define AML_CONDITIONAL_REF_OF_OP   (u16) 0x5b12
 #define AML_CREATE_FIELD_OP         (u16) 0x5b13
 #define AML_LOAD_TABLE_OP           (u16) 0x5b1f	/* ACPI 2.0 */
 #define AML_LOAD_OP                 (u16) 0x5b20
@@ -175,20 +179,12 @@
 #define AML_FIELD_OP                (u16) 0x5b81
 #define AML_DEVICE_OP               (u16) 0x5b82
 #define AML_PROCESSOR_OP            (u16) 0x5b83
-#define AML_POWER_RES_OP            (u16) 0x5b84
+#define AML_POWER_RESOURCE_OP       (u16) 0x5b84
 #define AML_THERMAL_ZONE_OP         (u16) 0x5b85
 #define AML_INDEX_FIELD_OP          (u16) 0x5b86
 #define AML_BANK_FIELD_OP           (u16) 0x5b87
 #define AML_DATA_REGION_OP          (u16) 0x5b88	/* ACPI 2.0 */
 
-/*
- * Combination opcodes (actually two one-byte opcodes)
- * Used by the disassembler and iASL compiler
- */
-#define AML_LGREATEREQUAL_OP        (u16) 0x9295
-#define AML_LLESSEQUAL_OP           (u16) 0x9294
-#define AML_LNOTEQUAL_OP            (u16) 0x9293
-
 /*
  * Opcodes for "Field" operators
  */
@@ -241,6 +237,7 @@
 #define ARGP_SIMPLENAME             0x12	/* name_string | local_term | arg_term */
 #define ARGP_NAME_OR_REF            0x13	/* For object_type only */
 #define ARGP_MAX                    0x13
+#define ARGP_COMMENT                0x14
 
 /*
  * Resolved argument types for the AML Interpreter
@@ -308,24 +305,19 @@
 #define ARGI_INVALID_OPCODE         0xFFFFFFFF
 
 /*
- * hash offsets
- */
-#define AML_EXTOP_HASH_OFFSET       22
-#define AML_LNOT_HASH_OFFSET        19
-
-/*
- * opcode groups and types
+ * Some of the flags and types below are of the form:
+ *
+ * AML_FLAGS_EXEC_#A_#T,#R, or
+ * AML_TYPE_EXEC_#A_#T,#R where:
+ *
+ *      #A is the number of required arguments
+ *      #T is the number of target operands
+ *      #R indicates whether there is a return value
  */
-#define OPGRP_NAMED                 0x01
-#define OPGRP_FIELD                 0x02
-#define OPGRP_BYTELIST              0x04
 
 /*
- * Opcode information
+ * Opcode information flags
  */
-
-/* Opcode flags */
-
 #define AML_LOGICAL                 0x0001
 #define AML_LOGICAL_NUMERIC         0x0002
 #define AML_MATH                    0x0004
@@ -342,7 +334,7 @@
 #define AML_CONSTANT                0x2000
 #define AML_NO_OPERAND_RESOLVE      0x4000
 
-/* Convenient flag groupings */
+/* Convenient flag groupings of the flags above */
 
 #define AML_FLAGS_EXEC_0A_0T_1R                                     AML_HAS_RETVAL
 #define AML_FLAGS_EXEC_1A_0T_0R     AML_HAS_ARGS	/* Monadic1  */
@@ -359,7 +351,7 @@
 
 /*
  * The opcode Type is used in a dispatch table, do not change
- * without updating the table.
+ * or add anything new without updating the table.
  */
 #define AML_TYPE_EXEC_0A_0T_1R      0x00
 #define AML_TYPE_EXEC_1A_0T_0R      0x01	/* Monadic1  */
@@ -385,7 +377,7 @@
 
 #define AML_TYPE_METHOD_CALL        0x10
 
-/* Misc */
+/* Miscellaneous types */
 
 #define AML_TYPE_CREATE_FIELD       0x11
 #define AML_TYPE_CREATE_OBJECT      0x12
@@ -395,7 +387,6 @@
 #define AML_TYPE_NAMED_SIMPLE       0x16
 #define AML_TYPE_NAMED_COMPLEX      0x17
 #define AML_TYPE_RETURN             0x18
-
 #define AML_TYPE_UNDEFINED          0x19
 #define AML_TYPE_BOGUS              0x1A
 

drivers/acpi/acpica/dbmethod.c

@@ -422,6 +422,7 @@ acpi_db_walk_for_execute(acpi_handle obj_handle,
 
 	status = acpi_get_object_info(obj_handle, &obj_info);
 	if (ACPI_FAILURE(status)) {
+		ACPI_FREE(pathname);
 		return (status);
 	}
 

drivers/acpi/acpica/dbxface.c

@@ -45,6 +45,7 @@
 #include "accommon.h"
 #include "amlcode.h"
 #include "acdebug.h"
+#include "acinterp.h"
 
 #define _COMPONENT          ACPI_CA_DEBUGGER
 ACPI_MODULE_NAME("dbxface")
@@ -125,7 +126,7 @@ error_exit:
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Called for AML_BREAK_POINT_OP
+ * DESCRIPTION: Called for AML_BREAKPOINT_OP
  *
  ******************************************************************************/
 
@@ -368,7 +369,9 @@ acpi_db_single_step(struct acpi_walk_state *walk_state,
 		walk_state->method_breakpoint = 1;	/* Must be non-zero! */
 	}
 
+	acpi_ex_exit_interpreter();
 	status = acpi_db_start_command(walk_state, op);
+	acpi_ex_enter_interpreter();
 
 	/* User commands complete, continue execution of the interrupted method */
 

drivers/acpi/acpica/dscontrol.c

@@ -347,7 +347,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state *walk_state,
 
 		break;
 
-	case AML_BREAK_POINT_OP:
+	case AML_BREAKPOINT_OP:
 
 		acpi_db_signal_break_point(walk_state);
 

drivers/acpi/acpica/dsmthdat.c

@@ -672,7 +672,8 @@ acpi_ds_store_object_to_local(u8 type,
  *
  * FUNCTION:    acpi_ds_method_data_get_type
  *
- * PARAMETERS:  opcode              - Either AML_LOCAL_OP or AML_ARG_OP
+ * PARAMETERS:  opcode              - Either AML_FIRST LOCAL_OP or
+ *                                    AML_FIRST_ARG_OP
  *              index               - Which Local or Arg whose type to get
  *              walk_state          - Current walk state object
  *

drivers/acpi/acpica/dsobject.c

@@ -114,7 +114,7 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
 				    ((op->common.parent->common.aml_opcode ==
 				      AML_PACKAGE_OP)
 				     || (op->common.parent->common.aml_opcode ==
-					 AML_VAR_PACKAGE_OP))) {
+					 AML_VARIABLE_PACKAGE_OP))) {
 					/*
 					 * We didn't find the target and we are populating elements
 					 * of a package - ignore if slack enabled. Some ASL code
@@ -144,7 +144,7 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
 
 		if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
 		    (op->common.parent->common.aml_opcode ==
-		     AML_VAR_PACKAGE_OP)) {
+		     AML_VARIABLE_PACKAGE_OP)) {
 			/*
 			 * Attempt to resolve the node to a value before we insert it into
 			 * the package. If this is a reference to a common data type,
@@ -398,7 +398,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
 
 	parent = op->common.parent;
 	while ((parent->common.aml_opcode == AML_PACKAGE_OP) ||
-	       (parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) {
+	       (parent->common.aml_opcode == AML_VARIABLE_PACKAGE_OP)) {
 		parent = parent->common.parent;
 	}
 
@@ -769,10 +769,10 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
 		switch (op_info->type) {
 		case AML_TYPE_LOCAL_VARIABLE:
 
-			/* Local ID (0-7) is (AML opcode - base AML_LOCAL_OP) */
+			/* Local ID (0-7) is (AML opcode - base AML_FIRST_LOCAL_OP) */
 
 			obj_desc->reference.value =
-			    ((u32)opcode) - AML_LOCAL_OP;
+			    ((u32)opcode) - AML_FIRST_LOCAL_OP;
 			obj_desc->reference.class = ACPI_REFCLASS_LOCAL;
 
 #ifndef ACPI_NO_METHOD_EXECUTION
@@ -790,9 +790,10 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
 
 		case AML_TYPE_METHOD_ARGUMENT:
 
-			/* Arg ID (0-6) is (AML opcode - base AML_ARG_OP) */
+			/* Arg ID (0-6) is (AML opcode - base AML_FIRST_ARG_OP) */
 
-			obj_desc->reference.value = ((u32)opcode) - AML_ARG_OP;
+			obj_desc->reference.value =
+			    ((u32)opcode) - AML_FIRST_ARG_OP;
 			obj_desc->reference.class = ACPI_REFCLASS_ARG;
 
 #ifndef ACPI_NO_METHOD_EXECUTION

drivers/acpi/acpica/dsopcode.c

@@ -639,7 +639,7 @@ acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state,
 		break;
 
 	case AML_PACKAGE_OP:
-	case AML_VAR_PACKAGE_OP:
+	case AML_VARIABLE_PACKAGE_OP:
 
 		status =
 		    acpi_ds_build_internal_package_obj(walk_state, op, length,
@@ -660,7 +660,7 @@ acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state,
 		if ((!op->common.parent) ||
 		    ((op->common.parent->common.aml_opcode != AML_PACKAGE_OP) &&
 		     (op->common.parent->common.aml_opcode !=
-		      AML_VAR_PACKAGE_OP)
+		      AML_VARIABLE_PACKAGE_OP)
 		     && (op->common.parent->common.aml_opcode !=
 			 AML_NAME_OP))) {
 			walk_state->result_obj = obj_desc;

drivers/acpi/acpica/dsutils.c

@@ -275,9 +275,9 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
 		if ((op->common.parent->common.aml_opcode == AML_REGION_OP) ||
 		    (op->common.parent->common.aml_opcode == AML_DATA_REGION_OP)
 		    || (op->common.parent->common.aml_opcode == AML_PACKAGE_OP)
-		    || (op->common.parent->common.aml_opcode ==
-			AML_VAR_PACKAGE_OP)
 		    || (op->common.parent->common.aml_opcode == AML_BUFFER_OP)
+		    || (op->common.parent->common.aml_opcode ==
+			AML_VARIABLE_PACKAGE_OP)
 		    || (op->common.parent->common.aml_opcode ==
 			AML_INT_EVAL_SUBTREE_OP)
 		    || (op->common.parent->common.aml_opcode ==
@@ -551,7 +551,7 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
 			 */
 			if (status == AE_NOT_FOUND) {
 				if (parent_op->common.aml_opcode ==
-				    AML_COND_REF_OF_OP) {
+				    AML_CONDITIONAL_REF_OF_OP) {
 					/*
 					 * For the Conditional Reference op, it's OK if
 					 * the name is not found;  We just need a way to
@@ -806,7 +806,7 @@ acpi_status acpi_ds_evaluate_name_path(struct acpi_walk_state *walk_state)
 	}
 
 	if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
-	    (op->common.parent->common.aml_opcode == AML_VAR_PACKAGE_OP) ||
+	    (op->common.parent->common.aml_opcode == AML_VARIABLE_PACKAGE_OP) ||
 	    (op->common.parent->common.aml_opcode == AML_REF_OF_OP)) {
 
 		/* TBD: Should we specify this feature as a bit of op_info->Flags of these opcodes? */

drivers/acpi/acpica/dswexec.c

@@ -497,7 +497,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
 			if ((op->asl.parent) &&
 			    ((op->asl.parent->asl.aml_opcode == AML_PACKAGE_OP)
 			     || (op->asl.parent->asl.aml_opcode ==
-				 AML_VAR_PACKAGE_OP))) {
+				 AML_VARIABLE_PACKAGE_OP))) {
 				ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
 						  "Method Reference in a Package, Op=%p\n",
 						  op));

drivers/acpi/acpica/dswload2.c

@@ -528,7 +528,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
 			status = acpi_ex_create_processor(walk_state);
 			break;
 
-		case AML_POWER_RES_OP:
+		case AML_POWER_RESOURCE_OP:
 
 			status = acpi_ex_create_power_resource(walk_state);
 			break;

drivers/acpi/acpica/exmisc.c

@@ -249,14 +249,14 @@ acpi_ex_do_logical_numeric_op(u16 opcode,
 	ACPI_FUNCTION_TRACE(ex_do_logical_numeric_op);
 
 	switch (opcode) {
-	case AML_LAND_OP:	/* LAnd (Integer0, Integer1) */
+	case AML_LOGICAL_AND_OP:	/* LAnd (Integer0, Integer1) */
 
 		if (integer0 && integer1) {
 			local_result = TRUE;
 		}
 		break;
 
-	case AML_LOR_OP:	/* LOr (Integer0, Integer1) */
+	case AML_LOGICAL_OR_OP:	/* LOr (Integer0, Integer1) */
 
 		if (integer0 || integer1) {
 			local_result = TRUE;
@@ -365,21 +365,21 @@ acpi_ex_do_logical_op(u16 opcode,
 		integer1 = local_operand1->integer.value;
 
 		switch (opcode) {
-		case AML_LEQUAL_OP:	/* LEqual (Operand0, Operand1) */
+		case AML_LOGICAL_EQUAL_OP:	/* LEqual (Operand0, Operand1) */
 
 			if (integer0 == integer1) {
 				local_result = TRUE;
 			}
 			break;
 
-		case AML_LGREATER_OP:	/* LGreater (Operand0, Operand1) */
+		case AML_LOGICAL_GREATER_OP:	/* LGreater (Operand0, Operand1) */
 
 			if (integer0 > integer1) {
 				local_result = TRUE;
 			}
 			break;
 
-		case AML_LLESS_OP:	/* LLess (Operand0, Operand1) */
+		case AML_LOGICAL_LESS_OP:	/* LLess (Operand0, Operand1) */
 
 			if (integer0 < integer1) {
 				local_result = TRUE;
@@ -408,7 +408,7 @@ acpi_ex_do_logical_op(u16 opcode,
 				 (length0 > length1) ? length1 : length0);
 
 		switch (opcode) {
-		case AML_LEQUAL_OP:	/* LEqual (Operand0, Operand1) */
+		case AML_LOGICAL_EQUAL_OP:	/* LEqual (Operand0, Operand1) */
 
 			/* Length and all bytes must be equal */
 
@@ -420,7 +420,7 @@ acpi_ex_do_logical_op(u16 opcode,
 			}
 			break;
 
-		case AML_LGREATER_OP:	/* LGreater (Operand0, Operand1) */
+		case AML_LOGICAL_GREATER_OP:	/* LGreater (Operand0, Operand1) */
 
 			if (compare > 0) {
 				local_result = TRUE;
@@ -437,7 +437,7 @@ acpi_ex_do_logical_op(u16 opcode,
 			}
 			break;
 
-		case AML_LLESS_OP:	/* LLess (Operand0, Operand1) */
+		case AML_LOGICAL_LESS_OP:	/* LLess (Operand0, Operand1) */
 
 			if (compare > 0) {
 				goto cleanup;	/* FALSE */

drivers/acpi/acpica/exnames.c

@@ -122,7 +122,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs)
 
 		/* Set up multi prefixes   */
 
-		*temp_ptr++ = AML_MULTI_NAME_PREFIX_OP;
+		*temp_ptr++ = AML_MULTI_NAME_PREFIX;
 		*temp_ptr++ = (char)num_name_segs;
 	} else if (2 == num_name_segs) {
 
@@ -342,7 +342,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
 			}
 			break;
 
-		case AML_MULTI_NAME_PREFIX_OP:
+		case AML_MULTI_NAME_PREFIX:
 
 			ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
 					  "MultiNamePrefix at %p\n",

drivers/acpi/acpica/exoparg1.c

@@ -274,7 +274,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 	case AML_FIND_SET_RIGHT_BIT_OP:
 	case AML_FROM_BCD_OP:
 	case AML_TO_BCD_OP:
-	case AML_COND_REF_OF_OP:
+	case AML_CONDITIONAL_REF_OF_OP:
 
 		/* Create a return object of type Integer for these opcodes */
 
@@ -405,7 +405,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 			}
 			break;
 
-		case AML_COND_REF_OF_OP:	/* cond_ref_of (source_object, Result) */
+		case AML_CONDITIONAL_REF_OF_OP:	/* cond_ref_of (source_object, Result) */
 			/*
 			 * This op is a little strange because the internal return value is
 			 * different than the return value stored in the result descriptor
@@ -475,14 +475,14 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 		/*
 		 * ACPI 2.0 Opcodes
 		 */
-	case AML_COPY_OP:	/* Copy (Source, Target) */
+	case AML_COPY_OBJECT_OP:	/* copy_object (Source, Target) */
 
 		status =
 		    acpi_ut_copy_iobject_to_iobject(operand[0], &return_desc,
 						    walk_state);
 		break;
 
-	case AML_TO_DECSTRING_OP:	/* to_decimal_string (Data, Result) */
+	case AML_TO_DECIMAL_STRING_OP:	/* to_decimal_string (Data, Result) */
 
 		status =
 		    acpi_ex_convert_to_string(operand[0], &return_desc,
@@ -495,7 +495,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 		}
 		break;
 
-	case AML_TO_HEXSTRING_OP:	/* to_hex_string (Data, Result) */
+	case AML_TO_HEX_STRING_OP:	/* to_hex_string (Data, Result) */
 
 		status =
 		    acpi_ex_convert_to_string(operand[0], &return_desc,
@@ -603,7 +603,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 	/* Examine the AML opcode */
 
 	switch (walk_state->opcode) {
-	case AML_LNOT_OP:	/* LNot (Operand) */
+	case AML_LOGICAL_NOT_OP:	/* LNot (Operand) */
 
 		return_desc = acpi_ut_create_integer_object((u64) 0);
 		if (!return_desc) {
@@ -652,9 +652,8 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 		 * NOTE:  We use LNOT_OP here in order to force resolution of the
 		 * reference operand to an actual integer.
 		 */
-		status =
-		    acpi_ex_resolve_operands(AML_LNOT_OP, &temp_desc,
-					     walk_state);
+		status = acpi_ex_resolve_operands(AML_LOGICAL_NOT_OP,
+						  &temp_desc, walk_state);
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
 					"While resolving operands for [%s]",

drivers/acpi/acpica/exoparg2.c

@@ -298,7 +298,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
 					NULL, &return_desc->integer.value);
 		break;
 
-	case AML_CONCAT_OP:	/* Concatenate (Data1, Data2, Result) */
+	case AML_CONCATENATE_OP:	/* Concatenate (Data1, Data2, Result) */
 
 		status =
 		    acpi_ex_do_concatenate(operand[0], operand[1], &return_desc,
@@ -343,7 +343,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
 		       operand[0]->buffer.pointer, length);
 		break;
 
-	case AML_CONCAT_RES_OP:
+	case AML_CONCATENATE_TEMPLATE_OP:
 
 		/* concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */
 

drivers/acpi/acpica/exoparg6.c

@@ -124,8 +124,8 @@ acpi_ex_do_match(u32 match_op,
 		 * Change to:     (M == P[i])
 		 */
 		status =
-		    acpi_ex_do_logical_op(AML_LEQUAL_OP, match_obj, package_obj,
-					  &logical_result);
+		    acpi_ex_do_logical_op(AML_LOGICAL_EQUAL_OP, match_obj,
+					  package_obj, &logical_result);
 		if (ACPI_FAILURE(status)) {
 			return (FALSE);
 		}
@@ -137,8 +137,8 @@ acpi_ex_do_match(u32 match_op,
 		 * Change to:                  (M >= P[i]) (M not_less than P[i])
 		 */
 		status =
-		    acpi_ex_do_logical_op(AML_LLESS_OP, match_obj, package_obj,
-					  &logical_result);
+		    acpi_ex_do_logical_op(AML_LOGICAL_LESS_OP, match_obj,
+					  package_obj, &logical_result);
 		if (ACPI_FAILURE(status)) {
 			return (FALSE);
 		}
@@ -151,7 +151,7 @@ acpi_ex_do_match(u32 match_op,
 		 * Change to:         (M > P[i])
 		 */
 		status =
-		    acpi_ex_do_logical_op(AML_LGREATER_OP, match_obj,
+		    acpi_ex_do_logical_op(AML_LOGICAL_GREATER_OP, match_obj,
 					  package_obj, &logical_result);
 		if (ACPI_FAILURE(status)) {
 			return (FALSE);
@@ -164,7 +164,7 @@ acpi_ex_do_match(u32 match_op,
 		 * Change to:                     (M <= P[i]) (M not_greater than P[i])
 		 */
 		status =
-		    acpi_ex_do_logical_op(AML_LGREATER_OP, match_obj,
+		    acpi_ex_do_logical_op(AML_LOGICAL_GREATER_OP, match_obj,
 					  package_obj, &logical_result);
 		if (ACPI_FAILURE(status)) {
 			return (FALSE);
@@ -178,8 +178,8 @@ acpi_ex_do_match(u32 match_op,
 		 * Change to:            (M < P[i])
 		 */
 		status =
-		    acpi_ex_do_logical_op(AML_LLESS_OP, match_obj, package_obj,
-					  &logical_result);
+		    acpi_ex_do_logical_op(AML_LOGICAL_LESS_OP, match_obj,
+					  package_obj, &logical_result);
 		if (ACPI_FAILURE(status)) {
 			return (FALSE);
 		}

drivers/acpi/acpica/exresolv.c

@@ -196,7 +196,8 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
 
 				if ((walk_state->opcode ==
 				     AML_INT_METHODCALL_OP)
-				    || (walk_state->opcode == AML_COPY_OP)) {
+				    || (walk_state->opcode ==
+					AML_COPY_OBJECT_OP)) {
 					break;
 				}
 

drivers/acpi/acpica/exstore.c

@@ -416,7 +416,7 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
 
 	/* Only limited target types possible for everything except copy_object */
 
-	if (walk_state->opcode != AML_COPY_OP) {
+	if (walk_state->opcode != AML_COPY_OBJECT_OP) {
 		/*
 		 * Only copy_object allows all object types to be overwritten. For
 		 * target_ref(s), there are restrictions on the object types that
@@ -499,7 +499,8 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
 	case ACPI_TYPE_STRING:
 	case ACPI_TYPE_BUFFER:
 
-		if ((walk_state->opcode == AML_COPY_OP) || !implicit_conversion) {
+		if ((walk_state->opcode == AML_COPY_OBJECT_OP) ||
+		    !implicit_conversion) {
 			/*
 			 * However, copy_object and Stores to arg_x do not perform
 			 * an implicit conversion, as per the ACPI specification.

drivers/acpi/acpica/exstoren.c

@@ -107,7 +107,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr,
 
 		/* For copy_object, no further validation necessary */
 
-		if (walk_state->opcode == AML_COPY_OP) {
+		if (walk_state->opcode == AML_COPY_OBJECT_OP) {
 			break;
 		}
 

drivers/acpi/acpica/hwvalid.c

@@ -102,7 +102,7 @@ static const struct acpi_port_info acpi_protected_ports[] = {
 	{"PCI", 0x0CF8, 0x0CFF, ACPI_OSI_WIN_XP}
 };
 
-#define ACPI_PORT_INFO_ENTRIES  ACPI_ARRAY_LENGTH (acpi_protected_ports)
+#define ACPI_PORT_INFO_ENTRIES      ACPI_ARRAY_LENGTH (acpi_protected_ports)
 
 /******************************************************************************
  *
@@ -128,7 +128,7 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
 	acpi_io_address last_address;
 	const struct acpi_port_info *port_info;
 
-	ACPI_FUNCTION_TRACE(hw_validate_io_request);
+	ACPI_FUNCTION_NAME(hw_validate_io_request);
 
 	/* Supported widths are 8/16/32 */
 
@@ -153,13 +153,13 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
 		ACPI_ERROR((AE_INFO,
 			    "Illegal I/O port address/length above 64K: %8.8X%8.8X/0x%X",
 			    ACPI_FORMAT_UINT64(address), byte_width));
-		return_ACPI_STATUS(AE_LIMIT);
+		return (AE_LIMIT);
 	}
 
 	/* Exit if requested address is not within the protected port table */
 
 	if (address > acpi_protected_ports[ACPI_PORT_INFO_ENTRIES - 1].end) {
-		return_ACPI_STATUS(AE_OK);
+		return (AE_OK);
 	}
 
 	/* Check request against the list of protected I/O ports */
@@ -167,7 +167,7 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
 	for (i = 0; i < ACPI_PORT_INFO_ENTRIES; i++, port_info++) {
 		/*
 		 * Check if the requested address range will write to a reserved
-		 * port. Four cases to consider:
+		 * port. There are four cases to consider:
 		 *
 		 * 1) Address range is contained completely in the port address range
 		 * 2) Address range overlaps port range at the port range start
@@ -198,7 +198,7 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
 		}
 	}
 
-	return_ACPI_STATUS(AE_OK);
+	return (AE_OK);
 }
 
 /******************************************************************************
@@ -206,7 +206,7 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
  * FUNCTION:    acpi_hw_read_port
  *
  * PARAMETERS:  Address             Address of I/O port/register to read
- *              Value               Where value is placed
+ *              Value               Where value (data) is returned
  *              Width               Number of bits
  *
  * RETURN:      Status and value read from port
@@ -244,7 +244,7 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width)
 	/*
 	 * There has been a protection violation within the request. Fall
 	 * back to byte granularity port I/O and ignore the failing bytes.
-	 * This provides Windows compatibility.
+	 * This provides compatibility with other ACPI implementations.
 	 */
 	for (i = 0, *value = 0; i < width; i += 8) {
 
@@ -307,7 +307,7 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width)
 	/*
 	 * There has been a protection violation within the request. Fall
 	 * back to byte granularity port I/O and ignore the failing bytes.
-	 * This provides Windows compatibility.
+	 * This provides compatibility with other ACPI implementations.
 	 */
 	for (i = 0; i < width; i += 8) {
 

drivers/acpi/acpica/nsaccess.c

@@ -485,7 +485,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
 					  flags));
 			break;
 
-		case AML_MULTI_NAME_PREFIX_OP:
+		case AML_MULTI_NAME_PREFIX:
 
 			/* More than one name_seg, search rules do not apply */
 

drivers/acpi/acpica/nsrepair.c

@@ -290,22 +290,12 @@ object_repaired:
 	/* Object was successfully repaired */
 
 	if (package_index != ACPI_NOT_PACKAGE_ELEMENT) {
-		/*
-		 * The original object is a package element. We need to
-		 * decrement the reference count of the original object,
-		 * for removing it from the package.
-		 *
-		 * However, if the original object was just wrapped with a
-		 * package object as part of the repair, we don't need to
-		 * change the reference count.
-		 */
+
+		/* Update reference count of new object */
+
 		if (!(info->return_flags & ACPI_OBJECT_WRAPPED)) {
 			new_object->common.reference_count =
 			    return_object->common.reference_count;
-
-			if (return_object->common.reference_count > 1) {
-				return_object->common.reference_count--;
-			}
 		}
 
 		ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,

drivers/acpi/acpica/nsrepair2.c

@@ -403,16 +403,12 @@ acpi_ns_repair_CID(struct acpi_evaluate_info *info,
 			return (status);
 		}
 
-		/* Take care with reference counts */
-
 		if (original_element != *element_ptr) {
 
-			/* Element was replaced */
+			/* Update reference count of new object */
 
 			(*element_ptr)->common.reference_count =
 			    original_ref_count;
-
-			acpi_ut_remove_reference(original_element);
 		}
 
 		element_ptr++;

drivers/acpi/acpica/nsutils.c

@@ -252,7 +252,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
 			internal_name[1] = AML_DUAL_NAME_PREFIX;
 			result = &internal_name[2];
 		} else {
-			internal_name[1] = AML_MULTI_NAME_PREFIX_OP;
+			internal_name[1] = AML_MULTI_NAME_PREFIX;
 			internal_name[2] = (char)num_segments;
 			result = &internal_name[3];
 		}
@@ -274,7 +274,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
 			internal_name[i] = AML_DUAL_NAME_PREFIX;
 			result = &internal_name[(acpi_size)i + 1];
 		} else {
-			internal_name[i] = AML_MULTI_NAME_PREFIX_OP;
+			internal_name[i] = AML_MULTI_NAME_PREFIX;
 			internal_name[(acpi_size)i + 1] = (char)num_segments;
 			result = &internal_name[(acpi_size)i + 2];
 		}
@@ -450,7 +450,7 @@ acpi_ns_externalize_name(u32 internal_name_length,
 	 */
 	if (prefix_length < internal_name_length) {
 		switch (internal_name[prefix_length]) {
-		case AML_MULTI_NAME_PREFIX_OP:
+		case AML_MULTI_NAME_PREFIX:
 
 			/* <count> 4-byte names */
 
@@ -594,25 +594,20 @@ struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle)
 void acpi_ns_terminate(void)
 {
 	acpi_status status;
+	union acpi_operand_object *prev;
+	union acpi_operand_object *next;
 
 	ACPI_FUNCTION_TRACE(ns_terminate);
 
-#ifdef ACPI_EXEC_APP
-	{
-		union acpi_operand_object *prev;
-		union acpi_operand_object *next;
+	/* Delete any module-level code blocks */
 
-		/* Delete any module-level code blocks */
-
-		next = acpi_gbl_module_code_list;
-		while (next) {
-			prev = next;
-			next = next->method.mutex;
-			prev->method.mutex = NULL;	/* Clear the Mutex (cheated) field */
-			acpi_ut_remove_reference(prev);
-		}
+	next = acpi_gbl_module_code_list;
+	while (next) {
+		prev = next;
+		next = next->method.mutex;
+		prev->method.mutex = NULL;	/* Clear the Mutex (cheated) field */
+		acpi_ut_remove_reference(prev);
 	}
-#endif
 
 	/*
 	 * Free the entire namespace -- all nodes and all objects

drivers/acpi/acpica/psargs.c

@@ -47,6 +47,7 @@
 #include "amlcode.h"
 #include "acnamesp.h"
 #include "acdispat.h"
+#include "acconvert.h"
 
 #define _COMPONENT          ACPI_PARSER
 ACPI_MODULE_NAME("psargs")
@@ -186,7 +187,7 @@ char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state)
 		end += 1 + (2 * ACPI_NAME_SIZE);
 		break;
 
-	case AML_MULTI_NAME_PREFIX_OP:
+	case AML_MULTI_NAME_PREFIX:
 
 		/* Multiple name segments, 4 chars each, count in next byte */
 
@@ -339,7 +340,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
 		/* 2) not_found during a cond_ref_of(x) is ok by definition */
 
 		else if (walk_state->op->common.aml_opcode ==
-			 AML_COND_REF_OF_OP) {
+			 AML_CONDITIONAL_REF_OF_OP) {
 			status = AE_OK;
 		}
 
@@ -352,7 +353,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
 			 ((arg->common.parent->common.aml_opcode ==
 			   AML_PACKAGE_OP)
 			  || (arg->common.parent->common.aml_opcode ==
-			      AML_VAR_PACKAGE_OP))) {
+			      AML_VARIABLE_PACKAGE_OP))) {
 			status = AE_OK;
 		}
 	}
@@ -502,6 +503,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
 
 	ACPI_FUNCTION_TRACE(ps_get_next_field);
 
+	ASL_CV_CAPTURE_COMMENTS_ONLY(parser_state);
 	aml = parser_state->aml;
 
 	/* Determine field type */
@@ -546,6 +548,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
 
 	/* Decode the field type */
 
+	ASL_CV_CAPTURE_COMMENTS_ONLY(parser_state);
 	switch (opcode) {
 	case AML_INT_NAMEDFIELD_OP:
 
@@ -555,6 +558,22 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
 		acpi_ps_set_name(field, name);
 		parser_state->aml += ACPI_NAME_SIZE;
 
+		ASL_CV_CAPTURE_COMMENTS_ONLY(parser_state);
+
+#ifdef ACPI_ASL_COMPILER
+		/*
+		 * Because the package length isn't represented as a parse tree object,
+		 * take comments surrounding this and add to the previously created
+		 * parse node.
+		 */
+		if (field->common.inline_comment) {
+			field->common.name_comment =
+			    field->common.inline_comment;
+		}
+		field->common.inline_comment = acpi_gbl_current_inline_comment;
+		acpi_gbl_current_inline_comment = NULL;
+#endif
+
 		/* Get the length which is encoded as a package length */
 
 		field->common.value.size =
@@ -609,11 +628,13 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
 		if (ACPI_GET8(parser_state->aml) == AML_BUFFER_OP) {
 			parser_state->aml++;
 
+			ASL_CV_CAPTURE_COMMENTS_ONLY(parser_state);
 			pkg_end = parser_state->aml;
 			pkg_length =
 			    acpi_ps_get_next_package_length(parser_state);
 			pkg_end += pkg_length;
 
+			ASL_CV_CAPTURE_COMMENTS_ONLY(parser_state);
 			if (parser_state->aml < pkg_end) {
 
 				/* Non-empty list */
@@ -630,6 +651,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
 				opcode = ACPI_GET8(parser_state->aml);
 				parser_state->aml++;
 
+				ASL_CV_CAPTURE_COMMENTS_ONLY(parser_state);
 				switch (opcode) {
 				case AML_BYTE_OP:	/* AML_BYTEDATA_ARG */
 
@@ -660,6 +682,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
 
 				/* Fill in bytelist data */
 
+				ASL_CV_CAPTURE_COMMENTS_ONLY(parser_state);
 				arg->named.value.size = buffer_length;
 				arg->named.data = parser_state->aml;
 			}

drivers/acpi/acpica/psloop.c

@@ -55,6 +55,7 @@
 #include "acparser.h"
 #include "acdispat.h"
 #include "amlcode.h"
+#include "acconvert.h"
 
 #define _COMPONENT          ACPI_PARSER
 ACPI_MODULE_NAME("psloop")
@@ -132,6 +133,21 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
 		       !walk_state->arg_count) {
 			walk_state->aml = walk_state->parser_state.aml;
 
+			switch (op->common.aml_opcode) {
+			case AML_METHOD_OP:
+			case AML_BUFFER_OP:
+			case AML_PACKAGE_OP:
+			case AML_VARIABLE_PACKAGE_OP:
+			case AML_WHILE_OP:
+
+				break;
+
+			default:
+
+				ASL_CV_CAPTURE_COMMENTS(walk_state);
+				break;
+			}
+
 			status =
 			    acpi_ps_get_next_arg(walk_state,
 						 &(walk_state->parser_state),
@@ -254,7 +270,7 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
 
 		case AML_BUFFER_OP:
 		case AML_PACKAGE_OP:
-		case AML_VAR_PACKAGE_OP:
+		case AML_VARIABLE_PACKAGE_OP:
 
 			if ((op->common.parent) &&
 			    (op->common.parent->common.aml_opcode ==
@@ -480,6 +496,8 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
 	/* Iterative parsing loop, while there is more AML to process: */
 
 	while ((parser_state->aml < parser_state->aml_end) || (op)) {
+		ASL_CV_CAPTURE_COMMENTS(walk_state);
+
 		aml_op_start = parser_state->aml;
 		if (!op) {
 			status =
@@ -516,6 +534,20 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
 		 */
 		walk_state->arg_count = 0;
 
+		switch (op->common.aml_opcode) {
+		case AML_BYTE_OP:
+		case AML_WORD_OP:
+		case AML_DWORD_OP:
+		case AML_QWORD_OP:
+
+			break;
+
+		default:
+
+			ASL_CV_CAPTURE_COMMENTS(walk_state);
+			break;
+		}
+
 		/* Are there any arguments that must be processed? */
 
 		if (walk_state->arg_types) {

drivers/acpi/acpica/psobject.c

@@ -45,6 +45,7 @@
 #include "accommon.h"
 #include "acparser.h"
 #include "amlcode.h"
+#include "acconvert.h"
 
 #define _COMPONENT          ACPI_PARSER
 ACPI_MODULE_NAME("psobject")
@@ -190,6 +191,7 @@ acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
 	 */
 	while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) &&
 	       (GET_CURRENT_ARG_TYPE(walk_state->arg_types) != ARGP_NAME)) {
+		ASL_CV_CAPTURE_COMMENTS(walk_state);
 		status =
 		    acpi_ps_get_next_arg(walk_state,
 					 &(walk_state->parser_state),
@@ -203,6 +205,18 @@ acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
 		INCREMENT_ARG_LIST(walk_state->arg_types);
 	}
 
+	/* are there any inline comments associated with the name_seg?? If so, save this. */
+
+	ASL_CV_CAPTURE_COMMENTS(walk_state);
+
+#ifdef ACPI_ASL_COMPILER
+	if (acpi_gbl_current_inline_comment != NULL) {
+		unnamed_op->common.name_comment =
+		    acpi_gbl_current_inline_comment;
+		acpi_gbl_current_inline_comment = NULL;
+	}
+#endif
+
 	/*
 	 * Make sure that we found a NAME and didn't run out of arguments
 	 */
@@ -243,6 +257,30 @@ acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
 
 	acpi_ps_append_arg(*op, unnamed_op->common.value.arg);
 
+#ifdef ACPI_ASL_COMPILER
+
+	/* save any comments that might be associated with unnamed_op. */
+
+	(*op)->common.inline_comment = unnamed_op->common.inline_comment;
+	(*op)->common.end_node_comment = unnamed_op->common.end_node_comment;
+	(*op)->common.close_brace_comment =
+	    unnamed_op->common.close_brace_comment;
+	(*op)->common.name_comment = unnamed_op->common.name_comment;
+	(*op)->common.comment_list = unnamed_op->common.comment_list;
+	(*op)->common.end_blk_comment = unnamed_op->common.end_blk_comment;
+	(*op)->common.cv_filename = unnamed_op->common.cv_filename;
+	(*op)->common.cv_parent_filename =
+	    unnamed_op->common.cv_parent_filename;
+	(*op)->named.aml = unnamed_op->common.aml;
+
+	unnamed_op->common.inline_comment = NULL;
+	unnamed_op->common.end_node_comment = NULL;
+	unnamed_op->common.close_brace_comment = NULL;
+	unnamed_op->common.name_comment = NULL;
+	unnamed_op->common.comment_list = NULL;
+	unnamed_op->common.end_blk_comment = NULL;
+#endif
+
 	if ((*op)->common.aml_opcode == AML_REGION_OP ||
 	    (*op)->common.aml_opcode == AML_DATA_REGION_OP) {
 		/*

drivers/acpi/acpica/psopcode.c

@@ -69,7 +69,7 @@ ACPI_MODULE_NAME("psopcode")
 	AML_DEVICE_OP
 	AML_THERMAL_ZONE_OP
 	AML_METHOD_OP
-	AML_POWER_RES_OP
+	AML_POWER_RESOURCE_OP
 	AML_PROCESSOR_OP
 	AML_FIELD_OP
 	AML_INDEX_FIELD_OP
@@ -95,7 +95,7 @@ ACPI_MODULE_NAME("psopcode")
 	AML_DEVICE_OP
 	AML_THERMAL_ZONE_OP
 	AML_METHOD_OP
-	AML_POWER_RES_OP
+	AML_POWER_RESOURCE_OP
 	AML_PROCESSOR_OP
 	AML_FIELD_OP
 	AML_INDEX_FIELD_OP
@@ -113,7 +113,7 @@ ACPI_MODULE_NAME("psopcode")
 	AML_DEVICE_OP
 	AML_THERMAL_ZONE_OP
 	AML_METHOD_OP
-	AML_POWER_RES_OP
+	AML_POWER_RESOURCE_OP
 	AML_PROCESSOR_OP
 	AML_NAME_OP
 	AML_ALIAS_OP
@@ -136,7 +136,7 @@ ACPI_MODULE_NAME("psopcode")
 	AML_DEVICE_OP
 	AML_THERMAL_ZONE_OP
 	AML_METHOD_OP
-	AML_POWER_RES_OP
+	AML_POWER_RESOURCE_OP
 	AML_PROCESSOR_OP
 	AML_NAME_OP
 	AML_ALIAS_OP
@@ -149,7 +149,7 @@ ACPI_MODULE_NAME("psopcode")
   must be deferred until needed
 
 	AML_METHOD_OP
-	AML_VAR_PACKAGE_OP
+	AML_VARIABLE_PACKAGE_OP
 	AML_CREATE_FIELD_OP
 	AML_CREATE_BIT_FIELD_OP
 	AML_CREATE_BYTE_FIELD_OP
@@ -652,7 +652,10 @@ const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES] = {
 
 	/* 81 */ ACPI_OP("External", ARGP_EXTERNAL_OP, ARGI_EXTERNAL_OP,
 			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE, /* ? */
-			 AML_TYPE_EXEC_3A_0T_0R, AML_FLAGS_EXEC_3A_0T_0R)
+			 AML_TYPE_EXEC_3A_0T_0R, AML_FLAGS_EXEC_3A_0T_0R),
+/* 82 */ ACPI_OP("Comment", ARGP_COMMENT_OP, ARGI_COMMENT_OP,
+			 ACPI_TYPE_STRING, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LITERAL, AML_CONSTANT)
 
 /*! [End] no source code translation !*/
 };

drivers/acpi/acpica/psopinfo.c

@@ -226,7 +226,7 @@ const u8 acpi_gbl_short_op_index[256] = {
 /* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74,
 /* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A,
 /* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61,
-/* 0xA8 */ 0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xA8 */ 0x62, 0x82, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 /* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 /* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 /* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,

drivers/acpi/acpica/psparse.c

@@ -105,7 +105,7 @@ u16 acpi_ps_peek_opcode(struct acpi_parse_state * parser_state)
 	aml = parser_state->aml;
 	opcode = (u16) ACPI_GET8(aml);
 
-	if (opcode == AML_EXTENDED_OP_PREFIX) {
+	if (opcode == AML_EXTENDED_PREFIX) {
 
 		/* Extended opcode, get the second opcode byte */
 
@@ -210,7 +210,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state *walk_state,
 			    || (op->common.parent->common.aml_opcode ==
 				AML_BANK_FIELD_OP)
 			    || (op->common.parent->common.aml_opcode ==
-				AML_VAR_PACKAGE_OP)) {
+				AML_VARIABLE_PACKAGE_OP)) {
 				replacement_op =
 				    acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP,
 						     op->common.aml);
@@ -225,7 +225,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state *walk_state,
 				if ((op->common.aml_opcode == AML_BUFFER_OP)
 				    || (op->common.aml_opcode == AML_PACKAGE_OP)
 				    || (op->common.aml_opcode ==
-					AML_VAR_PACKAGE_OP)) {
+					AML_VARIABLE_PACKAGE_OP)) {
 					replacement_op =
 					    acpi_ps_alloc_op(op->common.
 							     aml_opcode,

drivers/acpi/acpica/pstree.c

@@ -45,6 +45,7 @@
 #include "accommon.h"
 #include "acparser.h"
 #include "amlcode.h"
+#include "acconvert.h"
 
 #define _COMPONENT          ACPI_PARSER
 ACPI_MODULE_NAME("pstree")
@@ -216,6 +217,7 @@ union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
 
 	next = acpi_ps_get_arg(op, 0);
 	if (next) {
+		ASL_CV_LABEL_FILENODE(next);
 		return (next);
 	}
 
@@ -223,6 +225,7 @@ union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
 
 	next = op->common.next;
 	if (next) {
+		ASL_CV_LABEL_FILENODE(next);
 		return (next);
 	}
 
@@ -233,6 +236,8 @@ union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
 	while (parent) {
 		arg = acpi_ps_get_arg(parent, 0);
 		while (arg && (arg != origin) && (arg != op)) {
+
+			ASL_CV_LABEL_FILENODE(arg);
 			arg = arg->common.next;
 		}
 
@@ -247,6 +252,7 @@ union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
 
 			/* Found sibling of parent */
 
+			ASL_CV_LABEL_FILENODE(parent->common.next);
 			return (parent->common.next);
 		}
 
@@ -254,6 +260,7 @@ union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
 		parent = parent->common.parent;
 	}
 
+	ASL_CV_LABEL_FILENODE(next);
 	return (next);
 }
 
@@ -296,7 +303,7 @@ union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op)
 		child = acpi_ps_get_arg(op, 1);
 		break;
 
-	case AML_POWER_RES_OP:
+	case AML_POWER_RESOURCE_OP:
 	case AML_INDEX_FIELD_OP:
 
 		child = acpi_ps_get_arg(op, 2);

drivers/acpi/acpica/psutils.c

@@ -45,6 +45,7 @@
 #include "accommon.h"
 #include "acparser.h"
 #include "amlcode.h"
+#include "acconvert.h"
 
 #define _COMPONENT          ACPI_PARSER
 ACPI_MODULE_NAME("psutils")
@@ -152,6 +153,15 @@ union acpi_parse_object *acpi_ps_alloc_op(u16 opcode, u8 *aml)
 		acpi_ps_init_op(op, opcode);
 		op->common.aml = aml;
 		op->common.flags = flags;
+		ASL_CV_CLEAR_OP_COMMENTS(op);
+
+		if (opcode == AML_SCOPE_OP) {
+			acpi_gbl_current_scope = op;
+		}
+	}
+
+	if (gbl_capture_comments) {
+		ASL_CV_TRANSFER_COMMENTS(op);
 	}
 
 	return (op);
@@ -174,6 +184,7 @@ void acpi_ps_free_op(union acpi_parse_object *op)
 {
 	ACPI_FUNCTION_NAME(ps_free_op);
 
+	ASL_CV_CLEAR_OP_COMMENTS(op);
 	if (op->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
 		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
 				  "Free retval op: %p\n", op));

drivers/acpi/acpica/utalloc.c

@@ -142,6 +142,45 @@ acpi_status acpi_ut_create_caches(void)
 	if (ACPI_FAILURE(status)) {
 		return (status);
 	}
+#ifdef ACPI_ASL_COMPILER
+	/*
+	 * For use with the ASL-/ASL+ option. This cache keeps track of regular
+	 * 0xA9 0x01 comments.
+	 */
+	status =
+	    acpi_os_create_cache("Acpi-Comment",
+				 sizeof(struct acpi_comment_node),
+				 ACPI_MAX_COMMENT_CACHE_DEPTH,
+				 &acpi_gbl_reg_comment_cache);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	/*
+	 * This cache keeps track of the starting addresses of where the comments
+	 * lie. This helps prevent duplication of comments.
+	 */
+	status =
+	    acpi_os_create_cache("Acpi-Comment-Addr",
+				 sizeof(struct acpi_comment_addr_node),
+				 ACPI_MAX_COMMENT_CACHE_DEPTH,
+				 &acpi_gbl_comment_addr_cache);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	/*
+	 * This cache will be used for nodes that represent files.
+	 */
+	status =
+	    acpi_os_create_cache("Acpi-File", sizeof(struct acpi_file_node),
+				 ACPI_MAX_COMMENT_CACHE_DEPTH,
+				 &acpi_gbl_file_cache);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+#endif
+
 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 
 	/* Memory allocation lists */
@@ -201,6 +240,17 @@ acpi_status acpi_ut_delete_caches(void)
 	(void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache);
 	acpi_gbl_ps_node_ext_cache = NULL;
 
+#ifdef ACPI_ASL_COMPILER
+	(void)acpi_os_delete_cache(acpi_gbl_reg_comment_cache);
+	acpi_gbl_reg_comment_cache = NULL;
+
+	(void)acpi_os_delete_cache(acpi_gbl_comment_addr_cache);
+	acpi_gbl_comment_addr_cache = NULL;
+
+	(void)acpi_os_delete_cache(acpi_gbl_file_cache);
+	acpi_gbl_file_cache = NULL;
+#endif
+
 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 
 	/* Debug only - display leftover memory allocation, if any */

drivers/acpi/acpica/utcache.c

@@ -71,7 +71,7 @@ acpi_os_create_cache(char *cache_name,
 
 	ACPI_FUNCTION_ENTRY();
 
-	if (!cache_name || !return_cache || (object_size < 16)) {
+	if (!cache_name || !return_cache || !object_size) {
 		return (AE_BAD_PARAMETER);
 	}
 

drivers/acpi/acpica/utdebug.c

@@ -627,4 +627,5 @@ acpi_trace_point(acpi_trace_event_type type, u8 begin, u8 *aml, char *pathname)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_trace_point)
+
 #endif

drivers/acpi/acpica/utresrc.c

@@ -474,6 +474,15 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state,
 				return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
 			}
 
+			/*
+			 * The end_tag opcode must be followed by a zero byte.
+			 * Although this byte is technically defined to be a checksum,
+			 * in practice, all ASL compilers set this byte to zero.
+			 */
+			if (*(aml + 1) != 0) {
+				return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
+			}
+
 			/* Return the pointer to the end_tag if requested */
 
 			if (!user_function) {

drivers/acpi/acpica/utxferror.c

@@ -91,7 +91,7 @@ ACPI_EXPORT_SYMBOL(acpi_error)
  *
  * PARAMETERS:  module_name         - Caller's module name (for error output)
  *              line_number         - Caller's line number (for error output)
- *              status              - Status to be formatted
+ *              status              - Status value to be decoded/formatted
  *              format              - Printf format string + additional args
  *
  * RETURN:      None
@@ -132,8 +132,8 @@ ACPI_EXPORT_SYMBOL(acpi_exception)
  *
  * FUNCTION:    acpi_warning
  *
- * PARAMETERS:  module_name         - Caller's module name (for error output)
- *              line_number         - Caller's line number (for error output)
+ * PARAMETERS:  module_name         - Caller's module name (for warning output)
+ *              line_number         - Caller's line number (for warning output)
  *              format              - Printf format string + additional args
  *
  * RETURN:      None
@@ -163,17 +163,13 @@ ACPI_EXPORT_SYMBOL(acpi_warning)
  *
  * FUNCTION:    acpi_info
  *
- * PARAMETERS:  module_name         - Caller's module name (for error output)
- *              line_number         - Caller's line number (for error output)
- *              format              - Printf format string + additional args
+ * PARAMETERS:  format              - Printf format string + additional args
  *
  * RETURN:      None
  *
  * DESCRIPTION: Print generic "ACPI:" information message. There is no
  *              module/line/version info in order to keep the message simple.
  *
- * TBD: module_name and line_number args are not needed, should be removed.
- *
  ******************************************************************************/
 void ACPI_INTERNAL_VAR_XFACE acpi_info(const char *format, ...)
 {
@@ -229,8 +225,8 @@ ACPI_EXPORT_SYMBOL(acpi_bios_error)
  *
  * FUNCTION:    acpi_bios_warning
  *
- * PARAMETERS:  module_name         - Caller's module name (for error output)
- *              line_number         - Caller's line number (for error output)
+ * PARAMETERS:  module_name         - Caller's module name (for warning output)
+ *              line_number         - Caller's line number (for warning output)
  *              format              - Printf format string + additional args
  *
  * RETURN:      None

drivers/acpi/bus.c

@@ -114,6 +114,11 @@ int acpi_bus_get_status(struct acpi_device *device)
 	acpi_status status;
 	unsigned long long sta;
 
+	if (acpi_device_always_present(device)) {
+		acpi_set_device_status(device, ACPI_STA_DEFAULT);
+		return 0;
+	}
+
 	status = acpi_bus_get_status_handle(device->handle, &sta);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;

drivers/acpi/pmic/intel_pmic_xpower.c

@@ -27,97 +27,97 @@ static struct pmic_table power_table[] = {
 		.address = 0x00,
 		.reg = 0x13,
 		.bit = 0x05,
-	},
+	}, /* ALD1 */
 	{
 		.address = 0x04,
 		.reg = 0x13,
 		.bit = 0x06,
-	},
+	}, /* ALD2 */
 	{
 		.address = 0x08,
 		.reg = 0x13,
 		.bit = 0x07,
-	},
+	}, /* ALD3 */
 	{
 		.address = 0x0c,
 		.reg = 0x12,
 		.bit = 0x03,
-	},
+	}, /* DLD1 */
 	{
 		.address = 0x10,
 		.reg = 0x12,
 		.bit = 0x04,
-	},
+	}, /* DLD2 */
 	{
 		.address = 0x14,
 		.reg = 0x12,
 		.bit = 0x05,
-	},
+	}, /* DLD3 */
 	{
 		.address = 0x18,
 		.reg = 0x12,
 		.bit = 0x06,
-	},
+	}, /* DLD4 */
 	{
 		.address = 0x1c,
 		.reg = 0x12,
 		.bit = 0x00,
-	},
+	}, /* ELD1 */
 	{
 		.address = 0x20,
 		.reg = 0x12,
 		.bit = 0x01,
-	},
+	}, /* ELD2 */
 	{
 		.address = 0x24,
 		.reg = 0x12,
 		.bit = 0x02,
-	},
+	}, /* ELD3 */
 	{
 		.address = 0x28,
 		.reg = 0x13,
 		.bit = 0x02,
-	},
+	}, /* FLD1 */
 	{
 		.address = 0x2c,
 		.reg = 0x13,
 		.bit = 0x03,
-	},
+	}, /* FLD2 */
 	{
 		.address = 0x30,
 		.reg = 0x13,
 		.bit = 0x04,
-	},
+	}, /* FLD3 */
 	{
-		.address = 0x38,
+		.address = 0x34,
 		.reg = 0x10,
 		.bit = 0x03,
-	},
+	}, /* BUC1 */
 	{
-		.address = 0x3c,
+		.address = 0x38,
 		.reg = 0x10,
 		.bit = 0x06,
-	},
+	}, /* BUC2 */
 	{
-		.address = 0x40,
+		.address = 0x3c,
 		.reg = 0x10,
 		.bit = 0x05,
-	},
+	}, /* BUC3 */
 	{
-		.address = 0x44,
+		.address = 0x40,
 		.reg = 0x10,
 		.bit = 0x04,
-	},
+	}, /* BUC4 */
 	{
-		.address = 0x48,
+		.address = 0x44,
 		.reg = 0x10,
 		.bit = 0x01,
-	},
+	}, /* BUC5 */
 	{
-		.address = 0x4c,
+		.address = 0x48,
 		.reg = 0x10,
 		.bit = 0x00
-	},
+	}, /* BUC6 */
 };
 
 /* TMP0 - TMP5 are the same, all from GPADC */

drivers/acpi/power.c

@@ -864,6 +864,16 @@ void acpi_resume_power_resources(void)
 
 		mutex_unlock(&resource->resource_lock);
 	}
+
+	mutex_unlock(&power_resource_list_lock);
+}
+
+void acpi_turn_off_unused_power_resources(void)
+{
+	struct acpi_power_resource *resource;
+
+	mutex_lock(&power_resource_list_lock);
+
 	list_for_each_entry_reverse(resource, &acpi_power_resource_list, list_node) {
 		int result, state;
 

drivers/acpi/sleep.c

@@ -474,6 +474,7 @@ static void acpi_pm_start(u32 acpi_state)
  */
 static void acpi_pm_end(void)
 {
+	acpi_turn_off_unused_power_resources();
 	acpi_scan_lock_release();
 	/*
 	 * This is necessary in case acpi_pm_finish() is not called during a

drivers/acpi/sleep.h

@@ -6,6 +6,7 @@ extern struct list_head acpi_wakeup_device_list;
 extern struct mutex acpi_device_lock;
 
 extern void acpi_resume_power_resources(void);
+extern void acpi_turn_off_unused_power_resources(void);
 
 static inline acpi_status acpi_set_waking_vector(u32 wakeup_address)
 {

drivers/acpi/x86/utils.c

@@ -0,0 +1,90 @@
+/*
+ * X86 ACPI Utility Functions
+ *
+ * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
+ *
+ * Based on various non upstream patches to support the CHT Whiskey Cove PMIC:
+ * Copyright (C) 2013-2015 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/acpi.h>
+#include <asm/cpu_device_id.h>
+#include <asm/intel-family.h>
+#include "../internal.h"
+
+/*
+ * Some ACPI devices are hidden (status == 0x0) in recent BIOS-es because
+ * some recent Windows drivers bind to one device but poke at multiple
+ * devices at the same time, so the others get hidden.
+ * We work around this by always reporting ACPI_STA_DEFAULT for these
+ * devices. Note this MUST only be done for devices where this is safe.
+ *
+ * This forcing of devices to be present is limited to specific CPU (SoC)
+ * models both to avoid potentially causing trouble on other models and
+ * because some HIDs are re-used on different SoCs for completely
+ * different devices.
+ */
+struct always_present_id {
+	struct acpi_device_id hid[2];
+	struct x86_cpu_id cpu_ids[2];
+	const char *uid;
+};
+
+#define ICPU(model)	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, }
+
+#define ENTRY(hid, uid, cpu_models) {					\
+	{ { hid, }, {} },						\
+	{ cpu_models, {} },						\
+	uid,								\
+}
+
+static const struct always_present_id always_present_ids[] = {
+	/*
+	 * Bay / Cherry Trail PWM directly poked by GPU driver in win10,
+	 * but Linux uses a separate PWM driver, harmless if not used.
+	 */
+	ENTRY("80860F09", "1", ICPU(INTEL_FAM6_ATOM_SILVERMONT1)),
+	ENTRY("80862288", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT)),
+	/*
+	 * The INT0002 device is necessary to clear wakeup interrupt sources
+	 * on Cherry Trail devices, without it we get nobody cared IRQ msgs.
+	 */
+	ENTRY("INT0002", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT)),
+};
+
+bool acpi_device_always_present(struct acpi_device *adev)
+{
+	u32 *status = (u32 *)&adev->status;
+	u32 old_status = *status;
+	bool ret = false;
+	unsigned int i;
+
+	/* acpi_match_device_ids checks status, so set it to default */
+	*status = ACPI_STA_DEFAULT;
+	for (i = 0; i < ARRAY_SIZE(always_present_ids); i++) {
+		if (acpi_match_device_ids(adev, always_present_ids[i].hid))
+			continue;
+
+		if (!adev->pnp.unique_id ||
+		    strcmp(adev->pnp.unique_id, always_present_ids[i].uid))
+			continue;
+
+		if (!x86_match_cpu(always_present_ids[i].cpu_ids))
+			continue;
+
+		if (old_status != ACPI_STA_DEFAULT) /* Log only once */
+			dev_info(&adev->dev,
+				 "Device [%s] is in always present list\n",
+				 adev->pnp.bus_id);
+
+		ret = true;
+		break;
+	}
+	*status = old_status;
+
+	return ret;
+}

drivers/i2c/busses/i2c-designware-platdrv.c

@@ -157,6 +157,8 @@ static const struct acpi_device_id dw_i2c_acpi_match[] = {
 	{ "AMDI0010", ACCESS_INTR_MASK },
 	{ "AMDI0510", 0 },
 	{ "APMC0D0F", 0 },
+	{ "HISI02A1", 0 },
+	{ "HISI02A2", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, dw_i2c_acpi_match);

include/acpi/acconfig.h

@@ -78,6 +78,7 @@
 #define ACPI_MAX_EXTPARSE_CACHE_DEPTH   96	/* Parse tree objects */
 #define ACPI_MAX_OBJECT_CACHE_DEPTH     96	/* Interpreter operand objects */
 #define ACPI_MAX_NAMESPACE_CACHE_DEPTH  96	/* Namespace objects */
+#define ACPI_MAX_COMMENT_CACHE_DEPTH    96	/* Comments for the -ca option */
 
 /*
  * Should the subsystem abort the loading of an ACPI table if the

include/acpi/acpi_bus.h

@@ -588,6 +588,15 @@ struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
 int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
 int acpi_disable_wakeup_device_power(struct acpi_device *dev);
 
+#ifdef CONFIG_X86
+bool acpi_device_always_present(struct acpi_device *adev);
+#else
+static inline bool acpi_device_always_present(struct acpi_device *adev)
+{
+	return false;
+}
+#endif
+
 #ifdef CONFIG_PM
 acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
 				 void (*work_func)(struct work_struct *work));

include/acpi/acpixf.h

@@ -46,7 +46,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20170119
+#define ACPI_CA_VERSION                 0x20170303
 
 #include <acpi/acconfig.h>
 #include <acpi/actypes.h>

include/acpi/actbl2.h

@@ -87,6 +87,7 @@
 #define ACPI_SIG_WDAT           "WDAT"	/* Watchdog Action Table */
 #define ACPI_SIG_WDDT           "WDDT"	/* Watchdog Timer Description Table */
 #define ACPI_SIG_WDRT           "WDRT"	/* Watchdog Resource Table */
+#define ACPI_SIG_XXXX           "XXXX"	/* Intermediate AML header for ASL/ASL+ converter */
 
 #ifdef ACPI_UNDEFINED_TABLES
 /*
@@ -783,6 +784,15 @@ struct acpi_iort_smmu {
 #define ACPI_IORT_SMMU_DVM_SUPPORTED    (1)
 #define ACPI_IORT_SMMU_COHERENT_WALK    (1<<1)
 
+/* Global interrupt format */
+
+struct acpi_iort_smmu_gsi {
+	u32 nsg_irpt;
+	u32 nsg_irpt_flags;
+	u32 nsg_cfg_irpt;
+	u32 nsg_cfg_irpt_flags;
+};
+
 struct acpi_iort_smmu_v3 {
 	u64 base_address;	/* SMMUv3 base address */
 	u32 flags;