Merge tag 'acpi-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These are usual ACPICA code updates (although there are more of them
  than in the last few releases), a noticeable EC driver update (which
  mostly consists of cleanups, though), the device enumeration quirks
  handling rework from Hans, some updates eliminating unnecessary CPU
  cache flushing in some places (processor idle and system-wide PM code)
  and a bunch of assorted cleanups and fixes.

  Specifics:

   - Update ACPICA code in the kernel to the 20211217 upstream release
     including the following changes:

      - iASL/Disassembler: Additional support for NHLT table (Bob
        Moore).
      - Change a return_ACPI_STATUS (AE_BAD_PARAMETER) (Bob Moore).
      - Fix a couple of warnings under MSVC (Bob Moore).
      - iASL: Add TDEL table to both compiler/disassembler (Bob Moore).
      - iASL/NHLT table: "Specific Data" field support (Bob Moore).
      - Use original data_table_region pointer for accesses (Jessica
        Clarke).
      - Use original pointer for virtual origin tables (Jessica Clarke).
      - Macros: Remove ACPI_PHYSADDR_TO_PTR (Jessica Clarke).
      - Avoid subobject buffer overflow when validating RSDP signature
        (Jessica Clarke).
      - iASL: Add suppport for AGDI table (Ilkka Koskinen).
      - Hardware: Do not flush CPU cache when entering S4 and S5 (Kirill
        A. Shutemov).
      - Expand the ACPI_ACCESS_ definitions (Mark Langsdorf).
      - Utilities: Avoid deleting the same object twice in a row (Rafael
        Wysocki).
      - Executer: Fix REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R()
        (Rafael Wysocki).
      - Fix AEST Processor generic resource substructure data field byte
        length (Shuuichirou Ishii).
      - Fix wrong interpretation of PCC address (Sudeep Holla).
      - Add support for PCC Opregion special context data (Sudeep
        Holla).

   - Implement OperationRegion handler for PCC Type 3 subtype (Sudeep
     Holla).

   - Introduce acpi_fetch_acpi_dev() as a replacement for
     acpi_bus_get_device() and use it in the ACPI subsystem (Rafael
     Wysocki).

   - Avoid using _CID for device enumaration if _HID is missing or
     invalid (Rafael Wysocki).

   - Rework quirk handling during ACPI device enumeration and add some
     new quirks for known broken platforms (Hans de Goede).

   - Avoid unnecessary or redundant CPU cache flushing during system PM
     transitions (Kirill A. Shutemov).

   - Add PM debug messages related to power resources (Rafael Wysocki).

   - Fix kernel-doc comment in the PCI host bridge ACPI driver (Yang
     Li).

   - Rework flushing of EC work while suspended to idle and clean up the
     handling of events in the ACPI EC driver (Rafael Wysocki).

   - Prohibit ec_sys module parameter write_support from being used when
     the system is locked down (Hans de Goede).

   - Make the ACPI processor thermal driver use cpufreq_cpu_get() to
     check for presence of cpufreq policy (Manfred Spraul).

   - Avoid unnecessary CPU cache flushing in the ACPI processor idle
     driver (Kirill A. Shutemov).

   - Replace kernel.h with the necessary inclusions in the ACPI
     processor driver (Andy Shevchenko).

   - Use swap() instead of open coding it in the ACPI processor idle
     driver (Guo Zhengkui).

   - Fix the handling of defective LPAT in the ACPI xpower PMIC driver
     and clean up some definitions of PMIC data structures (Hans de
     Goede).

   - Fix outdated comment in the ACPI DPTF driver (Sumeet Pawnikar).

   - Add AEST to the list of known ACPI table signatures (Shuuichirou
     Ishii).

   - Make ACPI NUMA code take hotpluggable memblocks into account when
     CONFIG_MEMORY_HOTPLUG is not set (Vitaly Kuznetsov).

   - Use default_groups in kobj_type in the ACPI sysfs code (Greg
     Kroah-Hartman).

   - Rearrange _CPC structure documentation (Andy Shevchenko).

   - Drop an always true check from the ACPI thermal driver (Adam
     Borowski).

   - Add new "not charging" quirk for Lenovo ThinkPads to the ACPI
     battery driver (Thomas Weißschuh)"

* tag 'acpi-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (64 commits)
  ACPI: PCC: Implement OperationRegion handler for the PCC Type 3 subtype
  ACPI / x86: Skip AC and battery devices on x86 Android tablets with broken DSDTs
  ACPI / x86: Introduce an acpi_quirk_skip_acpi_ac_and_battery() helper
  ACPI: processor: thermal: avoid cpufreq_get_policy()
  serdev: Do not instantiate serdevs on boards with known bogus DSDT entries
  i2c: acpi: Do not instantiate I2C-clients on boards with known bogus DSDT entries
  ACPI / x86: Add acpi_quirk_skip_[i2c_client|serdev]_enumeration() helpers
  ACPI: scan: Create platform device for BCM4752 and LNV4752 ACPI nodes
  PCI/ACPI: Fix acpi_pci_osc_control_set() kernel-doc comment
  ACPI: battery: Add the ThinkPad "Not Charging" quirk
  ACPI: sysfs: use default_groups in kobj_type
  ACPICA: Update version to 20211217
  ACPICA: iASL/NHLT table: "Specific Data" field support
  ACPICA: iASL: Add suppport for AGDI table
  ACPICA: iASL: Add TDEL table to both compiler/disassembler
  ACPICA: Fixed a couple of warnings under MSVC
  ACPICA: Change a return_ACPI_STATUS (AE_BAD_PARAMETER)
  ACPICA: Hardware: Do not flush CPU cache when entering S4 and S5
  ACPICA: Add support for PCC Opregion special context data
  ACPICA: Fix wrong interpretation of PCC address
  ...

drivers/acpi/Kconfig

@@ -524,6 +524,23 @@ config ACPI_PPTT
 	bool
 endif
 
+config ACPI_PCC
+	bool "ACPI PCC Address Space"
+	depends on PCC
+	default y
+	help
+	  The PCC Address Space also referred as PCC Operation Region pertains
+	  to the region of PCC subspace that succeeds the PCC signature.
+
+	  The PCC Operation Region works in conjunction with the PCC Table
+	  (Platform Communications Channel Table). PCC subspaces that are
+	  marked for use as PCC Operation Regions must not be used as PCC
+	  subspaces for the standard ACPI features such as CPPC, RASF, PDTT and
+	  MPST. These standard features must always use the PCC Table instead.
+
+	  Enable this feature if you want to set up and install the PCC Address
+	  Space handler to handle PCC OpRegion in the firmware.
+
 source "drivers/acpi/pmic/Kconfig"
 
 config ACPI_VIOT

drivers/acpi/Makefile

@@ -67,6 +67,7 @@ acpi-$(CONFIG_ACPI_LPIT)	+= acpi_lpit.o
 acpi-$(CONFIG_ACPI_GENERIC_GSI) += irq.o
 acpi-$(CONFIG_ACPI_WATCHDOG)	+= acpi_watchdog.o
 acpi-$(CONFIG_ACPI_PRMT)	+= prmt.o
+acpi-$(CONFIG_ACPI_PCC)		+= acpi_pcc.o
 
 # Address translation
 acpi-$(CONFIG_ACPI_ADXL)	+= acpi_adxl.o

drivers/acpi/ac.c

@@ -48,19 +48,12 @@ static const struct acpi_device_id ac_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, ac_device_ids);
 
-/* Lists of PMIC ACPI HIDs with an (often better) native charger driver */
-static const struct acpi_ac_bl acpi_ac_blacklist[] = {
-	{ "INT33F4", -1 }, /* X-Powers AXP288 PMIC */
-	{ "INT34D3",  3 }, /* Intel Cherrytrail Whiskey Cove PMIC */
-};
-
 #ifdef CONFIG_PM_SLEEP
 static int acpi_ac_resume(struct device *dev);
 #endif
 static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
 
 static int ac_sleep_before_get_state_ms;
-static int ac_check_pmic = 1;
 static int ac_only;
 
 static struct acpi_driver acpi_ac_driver = {
@@ -200,12 +193,6 @@ static int __init thinkpad_e530_quirk(const struct dmi_system_id *d)
 	return 0;
 }
 
-static int __init ac_do_not_check_pmic_quirk(const struct dmi_system_id *d)
-{
-	ac_check_pmic = 0;
-	return 0;
-}
-
 static int __init ac_only_quirk(const struct dmi_system_id *d)
 {
 	ac_only = 1;
@@ -214,13 +201,6 @@ static int __init ac_only_quirk(const struct dmi_system_id *d)
 
 /* Please keep this list alphabetically sorted */
 static const struct dmi_system_id ac_dmi_table[]  __initconst = {
-	{
-		/* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */
-		.callback = ac_do_not_check_pmic_quirk,
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
-		},
-	},
 	{
 		/* Kodlix GK45 returning incorrect state */
 		.callback = ac_only_quirk,
@@ -228,15 +208,6 @@ static const struct dmi_system_id ac_dmi_table[]  __initconst = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "GK45"),
 		},
 	},
-	{
-		/* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
-		.callback = ac_do_not_check_pmic_quirk,
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "80XF"),
-			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
-		},
-	},
 	{
 		/* Lenovo Thinkpad e530, see comment in acpi_ac_notify() */
 		.callback = thinkpad_e530_quirk,
@@ -341,23 +312,15 @@ static int acpi_ac_remove(struct acpi_device *device)
 
 static int __init acpi_ac_init(void)
 {
-	unsigned int i;
 	int result;
 
 	if (acpi_disabled)
 		return -ENODEV;
 
-	dmi_check_system(ac_dmi_table);
+	if (acpi_quirk_skip_acpi_ac_and_battery())
+		return -ENODEV;
 
-	if (ac_check_pmic) {
-		for (i = 0; i < ARRAY_SIZE(acpi_ac_blacklist); i++)
-			if (acpi_dev_present(acpi_ac_blacklist[i].hid, "1",
-					     acpi_ac_blacklist[i].hrv)) {
-				pr_info("found native %s PMIC, not loading\n",
-					acpi_ac_blacklist[i].hid);
-				return -ENODEV;
-			}
-	}
+	dmi_check_system(ac_dmi_table);
 
 	result = acpi_bus_register_driver(&acpi_ac_driver);
 	if (result < 0)

drivers/acpi/acpi_pcc.c

+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Author: Sudeep Holla <sudeep.holla@arm.com>
+ * Copyright 2021 Arm Limited
+ *
+ * The PCC Address Space also referred as PCC Operation Region pertains to the
+ * region of PCC subspace that succeeds the PCC signature. The PCC Operation
+ * Region works in conjunction with the PCC Table(Platform Communications
+ * Channel Table). PCC subspaces that are marked for use as PCC Operation
+ * Regions must not be used as PCC subspaces for the standard ACPI features
+ * such as CPPC, RASF, PDTT and MPST. These standard features must always use
+ * the PCC Table instead.
+ *
+ * This driver sets up the PCC Address Space and installs an handler to enable
+ * handling of PCC OpRegion in the firmware.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/acpi.h>
+#include <linux/completion.h>
+#include <linux/idr.h>
+#include <linux/io.h>
+
+#include <acpi/pcc.h>
+
+struct pcc_data {
+	struct pcc_mbox_chan *pcc_chan;
+	void __iomem *pcc_comm_addr;
+	struct completion done;
+	struct mbox_client cl;
+	struct acpi_pcc_info ctx;
+};
+
+struct acpi_pcc_info pcc_ctx;
+
+static void pcc_rx_callback(struct mbox_client *cl, void *m)
+{
+	struct pcc_data *data = container_of(cl, struct pcc_data, cl);
+
+	complete(&data->done);
+}
+
+static acpi_status
+acpi_pcc_address_space_setup(acpi_handle region_handle, u32 function,
+			     void *handler_context,  void **region_context)
+{
+	struct pcc_data *data;
+	struct acpi_pcc_info *ctx = handler_context;
+	struct pcc_mbox_chan *pcc_chan;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return AE_NO_MEMORY;
+
+	data->cl.rx_callback = pcc_rx_callback;
+	data->cl.knows_txdone = true;
+	data->ctx.length = ctx->length;
+	data->ctx.subspace_id = ctx->subspace_id;
+	data->ctx.internal_buffer = ctx->internal_buffer;
+
+	init_completion(&data->done);
+	data->pcc_chan = pcc_mbox_request_channel(&data->cl, ctx->subspace_id);
+	if (IS_ERR(data->pcc_chan)) {
+		pr_err("Failed to find PCC channel for subspace %d\n",
+		       ctx->subspace_id);
+		return AE_NOT_FOUND;
+	}
+
+	pcc_chan = data->pcc_chan;
+	data->pcc_comm_addr = acpi_os_ioremap(pcc_chan->shmem_base_addr,
+					      pcc_chan->shmem_size);
+	if (!data->pcc_comm_addr) {
+		pr_err("Failed to ioremap PCC comm region mem for %d\n",
+		       ctx->subspace_id);
+		return AE_NO_MEMORY;
+	}
+
+	*region_context = data;
+	return AE_OK;
+}
+
+static acpi_status
+acpi_pcc_address_space_handler(u32 function, acpi_physical_address addr,
+			       u32 bits, acpi_integer *value,
+			       void *handler_context, void *region_context)
+{
+	int ret;
+	struct pcc_data *data = region_context;
+
+	reinit_completion(&data->done);
+
+	/* Write to Shared Memory */
+	memcpy_toio(data->pcc_comm_addr, (void *)value, data->ctx.length);
+
+	ret = mbox_send_message(data->pcc_chan->mchan, NULL);
+	if (ret < 0)
+		return AE_ERROR;
+
+	if (data->pcc_chan->mchan->mbox->txdone_irq)
+		wait_for_completion(&data->done);
+
+	mbox_client_txdone(data->pcc_chan->mchan, ret);
+
+	memcpy_fromio(value, data->pcc_comm_addr, data->ctx.length);
+
+	return AE_OK;
+}
+
+void __init acpi_init_pcc(void)
+{
+	acpi_status status;
+
+	status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,
+						    ACPI_ADR_SPACE_PLATFORM_COMM,
+						    &acpi_pcc_address_space_handler,
+						    &acpi_pcc_address_space_setup,
+						    &pcc_ctx);
+	if (ACPI_FAILURE(status))
+		pr_alert("OperationRegion handler could not be installed\n");
+}

drivers/acpi/acpi_video.c

@@ -1733,13 +1733,12 @@ acpi_video_bus_match(acpi_handle handle, u32 level, void *context,
 {
 	struct acpi_device *device = context;
 	struct acpi_device *sibling;
-	int result;
 
 	if (handle == device->handle)
 		return AE_CTRL_TERMINATE;
 
-	result = acpi_bus_get_device(handle, &sibling);
-	if (result)
+	sibling = acpi_fetch_acpi_dev(handle);
+	if (!sibling)
 		return AE_OK;
 
 	if (!strcmp(acpi_device_name(sibling), ACPI_VIDEO_BUS_NAME))

drivers/acpi/acpica/acevents.h

@@ -223,6 +223,11 @@ acpi_ev_pci_bar_region_setup(acpi_handle handle,
 			     u32 function,
 			     void *handler_context, void **region_context);
 
+acpi_status
+acpi_ev_data_table_region_setup(acpi_handle handle,
+				u32 function,
+				void *handler_context, void **region_context);
+
 acpi_status
 acpi_ev_default_region_setup(acpi_handle handle,
 			     u32 function,

drivers/acpi/acpica/acobject.h

@@ -138,6 +138,7 @@ struct acpi_object_region {
 	union acpi_operand_object *next;
 	acpi_physical_address address;
 	u32 length;
+	void *pointer;		/* Only for data table regions */
 };
 
 struct acpi_object_method {

drivers/acpi/acpica/actables.h

@@ -35,7 +35,8 @@ acpi_tb_init_table_descriptor(struct acpi_table_desc *table_desc,
 
 acpi_status
 acpi_tb_acquire_temp_table(struct acpi_table_desc *table_desc,
-			   acpi_physical_address address, u8 flags);
+			   acpi_physical_address address,
+			   u8 flags, struct acpi_table_header *table);
 
 void acpi_tb_release_temp_table(struct acpi_table_desc *table_desc);
 
@@ -86,6 +87,7 @@ acpi_tb_release_table(struct acpi_table_header *table,
 acpi_status
 acpi_tb_install_standard_table(acpi_physical_address address,
 			       u8 flags,
+			       struct acpi_table_header *table,
 			       u8 reload, u8 override, u32 *table_index);
 
 void acpi_tb_uninstall_table(struct acpi_table_desc *table_desc);
@@ -95,7 +97,9 @@ acpi_tb_load_table(u32 table_index, struct acpi_namespace_node *parent_node);
 
 acpi_status
 acpi_tb_install_and_load_table(acpi_physical_address address,
-			       u8 flags, u8 override, u32 *table_index);
+			       u8 flags,
+			       struct acpi_table_header *table,
+			       u8 override, u32 *table_index);
 
 acpi_status acpi_tb_unload_table(u32 table_index);
 

drivers/acpi/acpica/dsopcode.c

@@ -531,6 +531,7 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
 
 	obj_desc->region.address = ACPI_PTR_TO_PHYSADDR(table);
 	obj_desc->region.length = table->length;
+	obj_desc->region.pointer = table;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
 			  obj_desc,

drivers/acpi/acpica/evhandler.c

@@ -386,7 +386,7 @@ acpi_ev_install_space_handler(struct acpi_namespace_node *node,
 		case ACPI_ADR_SPACE_DATA_TABLE:
 
 			handler = acpi_ex_data_table_space_handler;
-			setup = NULL;
+			setup = acpi_ev_data_table_region_setup;
 			break;
 
 		default:

drivers/acpi/acpica/evregion.c

@@ -162,6 +162,16 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 			return_ACPI_STATUS(AE_NOT_EXIST);
 		}
 
+		if (region_obj->region.space_id == ACPI_ADR_SPACE_PLATFORM_COMM) {
+			struct acpi_pcc_info *ctx =
+			    handler_desc->address_space.context;
+
+			ctx->internal_buffer =
+			    field_obj->field.internal_pcc_buffer;
+			ctx->length = (u16)region_obj->region.length;
+			ctx->subspace_id = (u8)region_obj->region.address;
+		}
+
 		/*
 		 * We must exit the interpreter because the region setup will
 		 * potentially execute control methods (for example, the _REG method

drivers/acpi/acpica/evrgnini.c

@@ -406,6 +406,58 @@ acpi_ev_cmos_region_setup(acpi_handle handle,
 	return_ACPI_STATUS(AE_OK);
 }
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_data_table_region_setup
+ *
+ * PARAMETERS:  handle              - Region we are interested in
+ *              function            - Start or stop
+ *              handler_context     - Address space handler context
+ *              region_context      - Region specific context
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Setup a data_table_region
+ *
+ * MUTEX:       Assumes namespace is not locked
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_data_table_region_setup(acpi_handle handle,
+				u32 function,
+				void *handler_context, void **region_context)
+{
+	union acpi_operand_object *region_desc =
+	    (union acpi_operand_object *)handle;
+	struct acpi_data_table_space_context *local_region_context;
+
+	ACPI_FUNCTION_TRACE(ev_data_table_region_setup);
+
+	if (function == ACPI_REGION_DEACTIVATE) {
+		if (*region_context) {
+			ACPI_FREE(*region_context);
+			*region_context = NULL;
+		}
+		return_ACPI_STATUS(AE_OK);
+	}
+
+	/* Create a new context */
+
+	local_region_context =
+	    ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_data_table_space_context));
+	if (!(local_region_context)) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+
+	/* Save the data table pointer for use in the handler */
+
+	local_region_context->pointer = region_desc->region.pointer;
+
+	*region_context = local_region_context;
+	return_ACPI_STATUS(AE_OK);
+}
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ev_default_region_setup

drivers/acpi/acpica/exconfig.c

@@ -411,7 +411,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 	acpi_ex_exit_interpreter();
 	status = acpi_tb_install_and_load_table(ACPI_PTR_TO_PHYSADDR(table),
 						ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL,
-						TRUE, &table_index);
+						table, TRUE, &table_index);
 	acpi_ex_enter_interpreter();
 	if (ACPI_FAILURE(status)) {
 

drivers/acpi/acpica/excreate.c

@@ -279,6 +279,7 @@ acpi_ex_create_region(u8 * aml_start,
 	obj_desc->region.space_id = space_id;
 	obj_desc->region.address = 0;
 	obj_desc->region.length = 0;
+	obj_desc->region.pointer = NULL;
 	obj_desc->region.node = node;
 	obj_desc->region.handler = NULL;
 	obj_desc->common.flags &=

drivers/acpi/acpica/exfield.c

@@ -330,12 +330,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 		       obj_desc->field.base_byte_offset,
 		       source_desc->buffer.pointer, data_length);
 
-		if ((obj_desc->field.region_obj->region.address ==
-		     PCC_MASTER_SUBSPACE
-		     && MASTER_SUBSPACE_COMMAND(obj_desc->field.
-						base_byte_offset))
-		    || GENERIC_SUBSPACE_COMMAND(obj_desc->field.
-						base_byte_offset)) {
+		if (MASTER_SUBSPACE_COMMAND(obj_desc->field.base_byte_offset)) {
 
 			/* Perform the write */
 

drivers/acpi/acpica/exoparg1.c

@@ -1007,7 +1007,8 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 						    (walk_state, return_desc,
 						     &temp_desc);
 						if (ACPI_FAILURE(status)) {
-							goto cleanup;
+							return_ACPI_STATUS
+							    (status);
 						}
 
 						return_desc = temp_desc;

drivers/acpi/acpica/exregion.c

@@ -509,8 +509,15 @@ acpi_ex_data_table_space_handler(u32 function,
 				 u64 *value,
 				 void *handler_context, void *region_context)
 {
+	struct acpi_data_table_space_context *mapping;
+	char *pointer;
+
 	ACPI_FUNCTION_TRACE(ex_data_table_space_handler);
 
+	mapping = (struct acpi_data_table_space_context *) region_context;
+	pointer = ACPI_CAST_PTR(char, mapping->pointer) +
+	    (address - ACPI_PTR_TO_PHYSADDR(mapping->pointer));
+
 	/*
 	 * Perform the memory read or write. The bit_width was already
 	 * validated.
@@ -518,14 +525,14 @@ acpi_ex_data_table_space_handler(u32 function,
 	switch (function) {
 	case ACPI_READ:
 
-		memcpy(ACPI_CAST_PTR(char, value),
-		       ACPI_PHYSADDR_TO_PTR(address), ACPI_DIV_8(bit_width));
+		memcpy(ACPI_CAST_PTR(char, value), pointer,
+		       ACPI_DIV_8(bit_width));
 		break;
 
 	case ACPI_WRITE:
 
-		memcpy(ACPI_PHYSADDR_TO_PTR(address),
-		       ACPI_CAST_PTR(char, value), ACPI_DIV_8(bit_width));
+		memcpy(pointer, ACPI_CAST_PTR(char, value),
+		       ACPI_DIV_8(bit_width));
 		break;
 
 	default:

drivers/acpi/acpica/hwesleep.c

@@ -104,7 +104,9 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state)
 
 	/* Flush caches, as per ACPI specification */
 
-	ACPI_FLUSH_CPU_CACHE();
+	if (sleep_state < ACPI_STATE_S4) {
+		ACPI_FLUSH_CPU_CACHE();
+	}
 
 	status = acpi_os_enter_sleep(sleep_state, sleep_control, 0);
 	if (status == AE_CTRL_TERMINATE) {

drivers/acpi/acpica/hwsleep.c

@@ -110,7 +110,9 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
 
 	/* Flush caches, as per ACPI specification */
 
-	ACPI_FLUSH_CPU_CACHE();
+	if (sleep_state < ACPI_STATE_S4) {
+		ACPI_FLUSH_CPU_CACHE();
+	}
 
 	status = acpi_os_enter_sleep(sleep_state, pm1a_control, pm1b_control);
 	if (status == AE_CTRL_TERMINATE) {

drivers/acpi/acpica/hwxfsleep.c

@@ -162,8 +162,6 @@ acpi_status acpi_enter_sleep_state_s4bios(void)
 		return_ACPI_STATUS(status);
 	}
 
-	ACPI_FLUSH_CPU_CACHE();
-
 	status = acpi_hw_write_port(acpi_gbl_FADT.smi_command,
 				    (u32)acpi_gbl_FADT.s4_bios_request, 8);
 	if (ACPI_FAILURE(status)) {

drivers/acpi/acpica/tbdata.c

@@ -89,14 +89,27 @@ acpi_tb_init_table_descriptor(struct acpi_table_desc *table_desc,
 {
 
 	/*
-	 * Initialize the table descriptor. Set the pointer to NULL, since the
-	 * table is not fully mapped at this time.
+	 * Initialize the table descriptor. Set the pointer to NULL for external
+	 * tables, since the table is not fully mapped at this time.
 	 */
 	memset(table_desc, 0, sizeof(struct acpi_table_desc));
 	table_desc->address = address;
 	table_desc->length = table->length;
 	table_desc->flags = flags;
 	ACPI_MOVE_32_TO_32(table_desc->signature.ascii, table->signature);
+
+	switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) {
+	case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
+	case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
+
+		table_desc->pointer = table;
+		break;
+
+	case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
+	default:
+
+		break;
+	}
 }
 
 /*******************************************************************************
@@ -132,9 +145,7 @@ acpi_tb_acquire_table(struct acpi_table_desc *table_desc,
 	case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
 	case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
 
-		table = ACPI_CAST_PTR(struct acpi_table_header,
-				      ACPI_PHYSADDR_TO_PTR(table_desc->
-							   address));
+		table = table_desc->pointer;
 		break;
 
 	default:
@@ -196,6 +207,8 @@ acpi_tb_release_table(struct acpi_table_header *table,
  * PARAMETERS:  table_desc          - Table descriptor to be acquired
  *              address             - Address of the table
  *              flags               - Allocation flags of the table
+ *              table               - Pointer to the table (required for virtual
+ *                                    origins, optional for physical)
  *
  * RETURN:      Status
  *
@@ -208,49 +221,52 @@ acpi_tb_release_table(struct acpi_table_header *table,
 
 acpi_status
 acpi_tb_acquire_temp_table(struct acpi_table_desc *table_desc,
-			   acpi_physical_address address, u8 flags)
+			   acpi_physical_address address,
+			   u8 flags, struct acpi_table_header *table)
 {
-	struct acpi_table_header *table_header;
+	u8 mapped_table = FALSE;
 
 	switch (flags & ACPI_TABLE_ORIGIN_MASK) {
 	case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
 
 		/* Get the length of the full table from the header */
 
-		table_header =
-		    acpi_os_map_memory(address,
-				       sizeof(struct acpi_table_header));
-		if (!table_header) {
-			return (AE_NO_MEMORY);
+		if (!table) {
+			table =
+			    acpi_os_map_memory(address,
+					       sizeof(struct
+						      acpi_table_header));
+			if (!table) {
+				return (AE_NO_MEMORY);
+			}
+
+			mapped_table = TRUE;
 		}
 
-		acpi_tb_init_table_descriptor(table_desc, address, flags,
-					      table_header);
-		acpi_os_unmap_memory(table_header,
-				     sizeof(struct acpi_table_header));
-		return (AE_OK);
+		break;
 
 	case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
 	case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
 
-		table_header = ACPI_CAST_PTR(struct acpi_table_header,
-					     ACPI_PHYSADDR_TO_PTR(address));
-		if (!table_header) {
-			return (AE_NO_MEMORY);
+		if (!table) {
+			return (AE_BAD_PARAMETER);
 		}
 
-		acpi_tb_init_table_descriptor(table_desc, address, flags,
-					      table_header);
-		return (AE_OK);
+		break;
 
 	default:
 
-		break;
+		/* Table is not valid yet */
+
+		return (AE_NO_MEMORY);
 	}
 
-	/* Table is not valid yet */
+	acpi_tb_init_table_descriptor(table_desc, address, flags, table);
+	if (mapped_table) {
+		acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
+	}
 
-	return (AE_NO_MEMORY);
+	return (AE_OK);
 }
 
 /*******************************************************************************
@@ -335,7 +351,19 @@ void acpi_tb_invalidate_table(struct acpi_table_desc *table_desc)
 
 	acpi_tb_release_table(table_desc->pointer, table_desc->length,
 			      table_desc->flags);
-	table_desc->pointer = NULL;
+
+	switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) {
+	case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
+
+		table_desc->pointer = NULL;
+		break;
+
+	case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
+	case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
+	default:
+
+		break;
+	}
 
 	return_VOID;
 }
@@ -959,6 +987,9 @@ acpi_tb_load_table(u32 table_index, struct acpi_namespace_node *parent_node)
  *
  * PARAMETERS:  address                 - Physical address of the table
  *              flags                   - Allocation flags of the table
+ *              table                   - Pointer to the table (required for
+ *                                        virtual origins, optional for
+ *                                        physical)
  *              override                - Whether override should be performed
  *              table_index             - Where table index is returned
  *
@@ -970,7 +1001,9 @@ acpi_tb_load_table(u32 table_index, struct acpi_namespace_node *parent_node)
 
 acpi_status
 acpi_tb_install_and_load_table(acpi_physical_address address,
-			       u8 flags, u8 override, u32 *table_index)
+			       u8 flags,
+			       struct acpi_table_header *table,
+			       u8 override, u32 *table_index)
 {
 	acpi_status status;
 	u32 i;
@@ -979,7 +1012,7 @@ acpi_tb_install_and_load_table(acpi_physical_address address,
 
 	/* Install the table and load it into the namespace */
 
-	status = acpi_tb_install_standard_table(address, flags, TRUE,
+	status = acpi_tb_install_standard_table(address, flags, table, TRUE,
 						override, &i);
 	if (ACPI_FAILURE(status)) {
 		goto exit;

drivers/acpi/acpica/tbfadt.c

@@ -313,7 +313,7 @@ void acpi_tb_parse_fadt(void)
 	acpi_tb_install_standard_table((acpi_physical_address)acpi_gbl_FADT.
 				       Xdsdt,
 				       ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL,
-				       FALSE, TRUE, &acpi_gbl_dsdt_index);
+				       NULL, FALSE, TRUE, &acpi_gbl_dsdt_index);
 
 	/* If Hardware Reduced flag is set, there is no FACS */
 
@@ -322,14 +322,14 @@ void acpi_tb_parse_fadt(void)
 			acpi_tb_install_standard_table((acpi_physical_address)
 						       acpi_gbl_FADT.facs,
 						       ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL,
-						       FALSE, TRUE,
+						       NULL, FALSE, TRUE,
 						       &acpi_gbl_facs_index);
 		}
 		if (acpi_gbl_FADT.Xfacs) {
 			acpi_tb_install_standard_table((acpi_physical_address)
 						       acpi_gbl_FADT.Xfacs,
 						       ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL,
-						       FALSE, TRUE,
+						       NULL, FALSE, TRUE,
 						       &acpi_gbl_xfacs_index);
 		}
 	}

drivers/acpi/acpica/tbinstal.c

@@ -79,6 +79,8 @@ acpi_tb_install_table_with_override(struct acpi_table_desc *new_table_desc,
  * PARAMETERS:  address             - Address of the table (might be a virtual
  *                                    address depending on the table_flags)
  *              flags               - Flags for the table
+ *              table               - Pointer to the table (required for virtual
+ *                                    origins, optional for physical)
  *              reload              - Whether reload should be performed
  *              override            - Whether override should be performed
  *              table_index         - Where the table index is returned
@@ -96,6 +98,7 @@ acpi_tb_install_table_with_override(struct acpi_table_desc *new_table_desc,
 acpi_status
 acpi_tb_install_standard_table(acpi_physical_address address,
 			       u8 flags,
+			       struct acpi_table_header *table,
 			       u8 reload, u8 override, u32 *table_index)
 {
 	u32 i;
@@ -106,7 +109,8 @@ acpi_tb_install_standard_table(acpi_physical_address address,
 
 	/* Acquire a temporary table descriptor for validation */
 
-	status = acpi_tb_acquire_temp_table(&new_table_desc, address, flags);
+	status =
+	    acpi_tb_acquire_temp_table(&new_table_desc, address, flags, table);
 	if (ACPI_FAILURE(status)) {
 		ACPI_ERROR((AE_INFO,
 			    "Could not acquire table length at %8.8X%8.8X",
@@ -209,7 +213,8 @@ void acpi_tb_override_table(struct acpi_table_desc *old_table_desc)
 	if (ACPI_SUCCESS(status) && table) {
 		acpi_tb_acquire_temp_table(&new_table_desc,
 					   ACPI_PTR_TO_PHYSADDR(table),
-					   ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL);
+					   ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL,
+					   table);
 		ACPI_ERROR_ONLY(override_type = "Logical");
 		goto finish_override;
 	}
@@ -220,7 +225,8 @@ void acpi_tb_override_table(struct acpi_table_desc *old_table_desc)
 						 &address, &length);
 	if (ACPI_SUCCESS(status) && address && length) {
 		acpi_tb_acquire_temp_table(&new_table_desc, address,
-					   ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL);
+					   ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL,
+					   NULL);
 		ACPI_ERROR_ONLY(override_type = "Physical");
 		goto finish_override;
 	}
@@ -289,7 +295,8 @@ void acpi_tb_uninstall_table(struct acpi_table_desc *table_desc)
 
 	if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) ==
 	    ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL) {
-		ACPI_FREE(ACPI_PHYSADDR_TO_PTR(table_desc->address));
+		ACPI_FREE(table_desc->pointer);
+		table_desc->pointer = NULL;
 	}
 
 	table_desc->address = ACPI_PTR_TO_PHYSADDR(NULL);

drivers/acpi/acpica/tbprint.c

@@ -101,7 +101,8 @@ acpi_tb_print_table_header(acpi_physical_address address,
 		ACPI_INFO(("%-4.4s 0x%8.8X%8.8X %06X",
 			   header->signature, ACPI_FORMAT_UINT64(address),
 			   header->length));
-	} else if (ACPI_VALIDATE_RSDP_SIG(header->signature)) {
+	} else if (ACPI_VALIDATE_RSDP_SIG(ACPI_CAST_PTR(struct acpi_table_rsdp,
+							header)->signature)) {
 
 		/* RSDP has no common fields */
 

drivers/acpi/acpica/tbutils.c

@@ -328,7 +328,7 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
 
 		status = acpi_tb_install_standard_table(address,
 							ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL,
-							FALSE, TRUE,
+							NULL, FALSE, TRUE,
 							&table_index);
 
 		if (ACPI_SUCCESS(status) &&

drivers/acpi/acpica/tbxfload.c

@@ -227,9 +227,7 @@ acpi_status acpi_tb_load_namespace(void)
  *
  * FUNCTION:    acpi_install_table
  *
- * PARAMETERS:  address             - Address of the ACPI table to be installed.
- *              physical            - Whether the address is a physical table
- *                                    address or not
+ * PARAMETERS:  table               - Pointer to the ACPI table to be installed.
  *
  * RETURN:      Status
  *
@@ -240,28 +238,54 @@ acpi_status acpi_tb_load_namespace(void)
  ******************************************************************************/
 
 acpi_status ACPI_INIT_FUNCTION
-acpi_install_table(acpi_physical_address address, u8 physical)
+acpi_install_table(struct acpi_table_header *table)
 {
 	acpi_status status;
-	u8 flags;
 	u32 table_index;
 
 	ACPI_FUNCTION_TRACE(acpi_install_table);
 
-	if (physical) {
-		flags = ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL;
-	} else {
-		flags = ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL;
-	}
-
-	status = acpi_tb_install_standard_table(address, flags,
-						FALSE, FALSE, &table_index);
+	status = acpi_tb_install_standard_table(ACPI_PTR_TO_PHYSADDR(table),
+						ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL,
+						table, FALSE, FALSE,
+						&table_index);
 
 	return_ACPI_STATUS(status);
 }
 
 ACPI_EXPORT_SYMBOL_INIT(acpi_install_table)
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_install_physical_table
+ *
+ * PARAMETERS:  address             - Address of the ACPI table to be installed.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Dynamically install an ACPI table.
+ *              Note: This function should only be invoked after
+ *                    acpi_initialize_tables() and before acpi_load_tables().
+ *
+ ******************************************************************************/
+acpi_status ACPI_INIT_FUNCTION
+acpi_install_physical_table(acpi_physical_address address)
+{
+	acpi_status status;
+	u32 table_index;
+
+	ACPI_FUNCTION_TRACE(acpi_install_physical_table);
+
+	status = acpi_tb_install_standard_table(address,
+						ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL,
+						NULL, FALSE, FALSE,
+						&table_index);
+
+	return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL_INIT(acpi_install_physical_table)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_load_table
@@ -298,7 +322,7 @@ acpi_status acpi_load_table(struct acpi_table_header *table, u32 *table_idx)
 	ACPI_INFO(("Host-directed Dynamic ACPI Table Load:"));
 	status = acpi_tb_install_and_load_table(ACPI_PTR_TO_PHYSADDR(table),
 						ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL,
-						FALSE, &table_index);
+						table, FALSE, &table_index);
 	if (table_idx) {
 		*table_idx = table_index;
 	}

drivers/acpi/acpica/utdelete.c

@@ -422,6 +422,7 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
 			ACPI_WARNING((AE_INFO,
 				      "Obj %p, Reference Count is already zero, cannot decrement\n",
 				      object));
+			return;
 		}
 
 		ACPI_DEBUG_PRINT_RAW((ACPI_DB_ALLOCATIONS,

drivers/acpi/battery.c

@@ -52,7 +52,7 @@ static bool battery_driver_registered;
 static int battery_bix_broken_package;
 static int battery_notification_delay_ms;
 static int battery_ac_is_broken;
-static int battery_check_pmic = 1;
+static int battery_quirk_notcharging;
 static unsigned int cache_time = 1000;
 module_param(cache_time, uint, 0644);
 MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
@@ -64,11 +64,6 @@ static const struct acpi_device_id battery_device_ids[] = {
 
 MODULE_DEVICE_TABLE(acpi, battery_device_ids);
 
-/* Lists of PMIC ACPI HIDs with an (often better) native battery driver */
-static const char * const acpi_battery_blacklist[] = {
-	"INT33F4", /* X-Powers AXP288 PMIC */
-};
-
 enum {
 	ACPI_BATTERY_ALARM_PRESENT,
 	ACPI_BATTERY_XINFO_PRESENT,
@@ -217,6 +212,8 @@ static int acpi_battery_get_property(struct power_supply *psy,
 			val->intval = POWER_SUPPLY_STATUS_CHARGING;
 		else if (acpi_battery_is_charged(battery))
 			val->intval = POWER_SUPPLY_STATUS_FULL;
+		else if (battery_quirk_notcharging)
+			val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
 		else
 			val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
 		break;
@@ -1104,10 +1101,9 @@ battery_ac_is_broken_quirk(const struct dmi_system_id *d)
 	return 0;
 }
 
-static int __init
-battery_do_not_check_pmic_quirk(const struct dmi_system_id *d)
+static int __init battery_quirk_not_charging(const struct dmi_system_id *d)
 {
-	battery_check_pmic = 0;
+	battery_quirk_notcharging = 1;
 	return 0;
 }
 
@@ -1140,19 +1136,16 @@ static const struct dmi_system_id bat_dmi_table[] __initconst = {
 		},
 	},
 	{
-		/* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */
-		.callback = battery_do_not_check_pmic_quirk,
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
-		},
-	},
-	{
-		/* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
-		.callback = battery_do_not_check_pmic_quirk,
+		/*
+		 * On Lenovo ThinkPads the BIOS specification defines
+		 * a state when the bits for charging and discharging
+		 * are both set to 0. That state is "Not Charging".
+		 */
+		.callback = battery_quirk_not_charging,
+		.ident = "Lenovo ThinkPad",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "80XF"),
-			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad"),
 		},
 	},
 	{},
@@ -1279,19 +1272,12 @@ static struct acpi_driver acpi_battery_driver = {
 
 static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie)
 {
-	unsigned int i;
 	int result;
 
-	dmi_check_system(bat_dmi_table);
+	if (acpi_quirk_skip_acpi_ac_and_battery())
+		return;
 
-	if (battery_check_pmic) {
-		for (i = 0; i < ARRAY_SIZE(acpi_battery_blacklist); i++)
-			if (acpi_dev_present(acpi_battery_blacklist[i], "1", -1)) {
-				pr_info("found native %s PMIC, not loading\n",
-					acpi_battery_blacklist[i]);
-				return;
-			}
-	}
+	dmi_check_system(bat_dmi_table);
 
 	result = acpi_bus_register_driver(&acpi_battery_driver);
 	battery_driver_registered = (result == 0);

drivers/acpi/bus.c

@@ -98,8 +98,8 @@ 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);
+	if (acpi_device_override_status(device, &sta)) {
+		acpi_set_device_status(device, sta);
 		return 0;
 	}
 
@@ -1320,6 +1320,7 @@ static int __init acpi_init(void)
 		pr_debug("%s: kset create error\n", __func__);
 
 	init_prmt();
+	acpi_init_pcc();
 	result = acpi_bus_init();
 	if (result) {
 		kobject_put(acpi_kobj);

drivers/acpi/cppc_acpi.c

@@ -179,10 +179,11 @@ static struct attribute *cppc_attrs[] = {
 	&lowest_freq.attr,
 	NULL
 };
+ATTRIBUTE_GROUPS(cppc);
 
 static struct kobj_type cppc_ktype = {
 	.sysfs_ops = &kobj_sysfs_ops,
-	.default_attrs = cppc_attrs,
+	.default_groups = cppc_groups,
 };
 
 static int check_pcc_chan(int pcc_ss_id, bool chk_err_bit)
@@ -604,47 +605,30 @@ static bool is_cppc_supported(int revision, int num_ent)
 /*
  * An example CPC table looks like the following.
  *
- *	Name(_CPC, Package()
- *			{
- *			17,
- *			NumEntries
- *			1,
- *			// Revision
- *			ResourceTemplate(){Register(PCC, 32, 0, 0x120, 2)},
- *			// Highest Performance
- *			ResourceTemplate(){Register(PCC, 32, 0, 0x124, 2)},
- *			// Nominal Performance
- *			ResourceTemplate(){Register(PCC, 32, 0, 0x128, 2)},
- *			// Lowest Nonlinear Performance
- *			ResourceTemplate(){Register(PCC, 32, 0, 0x12C, 2)},
- *			// Lowest Performance
- *			ResourceTemplate(){Register(PCC, 32, 0, 0x130, 2)},
- *			// Guaranteed Performance Register
- *			ResourceTemplate(){Register(PCC, 32, 0, 0x110, 2)},
- *			// Desired Performance Register
- *			ResourceTemplate(){Register(SystemMemory, 0, 0, 0, 0)},
- *			..
- *			..
- *			..
- *
- *		}
+ *  Name (_CPC, Package() {
+ *      17,							// NumEntries
+ *      1,							// Revision
+ *      ResourceTemplate() {Register(PCC, 32, 0, 0x120, 2)},	// Highest Performance
+ *      ResourceTemplate() {Register(PCC, 32, 0, 0x124, 2)},	// Nominal Performance
+ *      ResourceTemplate() {Register(PCC, 32, 0, 0x128, 2)},	// Lowest Nonlinear Performance
+ *      ResourceTemplate() {Register(PCC, 32, 0, 0x12C, 2)},	// Lowest Performance
+ *      ResourceTemplate() {Register(PCC, 32, 0, 0x130, 2)},	// Guaranteed Performance Register
+ *      ResourceTemplate() {Register(PCC, 32, 0, 0x110, 2)},	// Desired Performance Register
+ *      ResourceTemplate() {Register(SystemMemory, 0, 0, 0, 0)},
+ *      ...
+ *      ...
+ *      ...
+ *  }
  * Each Register() encodes how to access that specific register.
  * e.g. a sample PCC entry has the following encoding:
  *
- *	Register (
- *		PCC,
- *		AddressSpaceKeyword
- *		8,
- *		//RegisterBitWidth
- *		8,
- *		//RegisterBitOffset
- *		0x30,
- *		//RegisterAddress
- *		9
- *		//AccessSize (subspace ID)
- *		0
- *		)
- *	}
+ *  Register (
+ *      PCC,	// AddressSpaceKeyword
+ *      8,	// RegisterBitWidth
+ *      8,	// RegisterBitOffset
+ *      0x30,	// RegisterAddress
+ *      9,	// AccessSize (subspace ID)
+ *  )
  */
 
 #ifndef init_freq_invariance_cppc

drivers/acpi/device_pm.c

@@ -285,14 +285,12 @@ EXPORT_SYMBOL(acpi_device_set_power);
 
 int acpi_bus_set_power(acpi_handle handle, int state)
 {
-	struct acpi_device *device;
-	int result;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 
-	result = acpi_bus_get_device(handle, &device);
-	if (result)
-		return result;
+	if (device)
+		return acpi_device_set_power(device, state);
 
-	return acpi_device_set_power(device, state);
+	return -ENODEV;
 }
 EXPORT_SYMBOL(acpi_bus_set_power);
 
@@ -410,21 +408,20 @@ EXPORT_SYMBOL_GPL(acpi_device_update_power);
 
 int acpi_bus_update_power(acpi_handle handle, int *state_p)
 {
-	struct acpi_device *device;
-	int result;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 
-	result = acpi_bus_get_device(handle, &device);
-	return result ? result : acpi_device_update_power(device, state_p);
+	if (device)
+		return acpi_device_update_power(device, state_p);
+
+	return -ENODEV;
 }
 EXPORT_SYMBOL_GPL(acpi_bus_update_power);
 
 bool acpi_bus_power_manageable(acpi_handle handle)
 {
-	struct acpi_device *device;
-	int result;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 
-	result = acpi_bus_get_device(handle, &device);
-	return result ? false : device->flags.power_manageable;
+	return device && device->flags.power_manageable;
 }
 EXPORT_SYMBOL(acpi_bus_power_manageable);
 
@@ -543,11 +540,9 @@ acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
 
 bool acpi_bus_can_wakeup(acpi_handle handle)
 {
-	struct acpi_device *device;
-	int result;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 
-	result = acpi_bus_get_device(handle, &device);
-	return result ? false : device->wakeup.flags.valid;
+	return device && device->wakeup.flags.valid;
 }
 EXPORT_SYMBOL(acpi_bus_can_wakeup);
 

drivers/acpi/device_sysfs.c

@@ -53,6 +53,7 @@ static struct attribute *acpi_data_node_default_attrs[] = {
 	&data_node_path.attr,
 	NULL
 };
+ATTRIBUTE_GROUPS(acpi_data_node_default);
 
 #define to_data_node(k) container_of(k, struct acpi_data_node, kobj)
 #define to_attr(a) container_of(a, struct acpi_data_node_attr, attr)
@@ -79,7 +80,7 @@ static void acpi_data_node_release(struct kobject *kobj)
 
 static struct kobj_type acpi_data_node_ktype = {
 	.sysfs_ops = &acpi_data_node_sysfs_ops,
-	.default_attrs = acpi_data_node_default_attrs,
+	.default_groups = acpi_data_node_default_groups,
 	.release = acpi_data_node_release,
 };
 

drivers/acpi/dock.c

@@ -489,9 +489,8 @@ static ssize_t docked_show(struct device *dev,
 			   struct device_attribute *attr, char *buf)
 {
 	struct dock_station *dock_station = dev->platform_data;
-	struct acpi_device *adev = NULL;
+	struct acpi_device *adev = acpi_fetch_acpi_dev(dock_station->handle);
 
-	acpi_bus_get_device(dock_station->handle, &adev);
 	return sysfs_emit(buf, "%u\n", acpi_device_enumerated(adev));
 }
 static DEVICE_ATTR_RO(docked);

drivers/acpi/dptf/dptf_pch_fivr.c

@@ -46,7 +46,7 @@ static int pch_fivr_read(acpi_handle handle, char *method, struct pch_fivr_resp
 }
 
 /*
- * Presentation of attributes which are defined for INT1045
+ * Presentation of attributes which are defined for INTC10xx
  * They are:
  * freq_mhz_low_clock : Set PCH FIVR switching freq for
  *			FIVR clock 19.2MHz and 24MHz

drivers/acpi/ec_sys.c

@@ -19,7 +19,7 @@ MODULE_DESCRIPTION("ACPI EC sysfs access driver");
 MODULE_LICENSE("GPL");
 
 static bool write_support;
-module_param(write_support, bool, 0644);
+module_param_hw(write_support, bool, other, 0644);
 MODULE_PARM_DESC(write_support, "Dangerous, reboot and removal of battery may "
 		 "be needed.");
 

drivers/acpi/internal.h

@@ -166,6 +166,13 @@ static inline void acpi_early_processor_osc(void) {}
 /* --------------------------------------------------------------------------
                                   Embedded Controller
    -------------------------------------------------------------------------- */
+
+enum acpi_ec_event_state {
+	EC_EVENT_READY = 0,	/* Event work can be submitted */
+	EC_EVENT_IN_PROGRESS,	/* Event work is pending or being processed */
+	EC_EVENT_COMPLETE,	/* Event work processing has completed */
+};
+
 struct acpi_ec {
 	acpi_handle handle;
 	int gpe;
@@ -182,7 +189,10 @@ struct acpi_ec {
 	spinlock_t lock;
 	struct work_struct work;
 	unsigned long timestamp;
-	unsigned long nr_pending_queries;
+	enum acpi_ec_event_state event_state;
+	unsigned int events_to_process;
+	unsigned int events_in_progress;
+	unsigned int queries_in_progress;
 	bool busy_polling;
 	unsigned int polling_guard;
 };

drivers/acpi/numa/srat.c

@@ -254,9 +254,8 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	}
 	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
 		goto out_err;
-	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
-	if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
-		goto out_err;
+	hotpluggable = IS_ENABLED(CONFIG_MEMORY_HOTPLUG) &&
+		(ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE);
 
 	start = ma->base_address;
 	end = start + ma->length;

drivers/acpi/pci_link.c

@@ -606,12 +606,10 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
 int acpi_pci_link_allocate_irq(acpi_handle handle, int index, int *triggering,
 			       int *polarity, char **name)
 {
-	int result;
-	struct acpi_device *device;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	struct acpi_pci_link *link;
 
-	result = acpi_bus_get_device(handle, &device);
-	if (result) {
+	if (!device) {
 		acpi_handle_err(handle, "Invalid link device\n");
 		return -1;
 	}
@@ -658,12 +656,10 @@ int acpi_pci_link_allocate_irq(acpi_handle handle, int index, int *triggering,
  */
 int acpi_pci_link_free_irq(acpi_handle handle)
 {
-	struct acpi_device *device;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	struct acpi_pci_link *link;
-	acpi_status result;
 
-	result = acpi_bus_get_device(handle, &device);
-	if (result) {
+	if (!device) {
 		acpi_handle_err(handle, "Invalid link device\n");
 		return -1;
 	}

drivers/acpi/pci_root.c

@@ -67,11 +67,10 @@ static struct acpi_scan_handler pci_root_handler = {
  */
 int acpi_is_root_bridge(acpi_handle handle)
 {
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	int ret;
-	struct acpi_device *device;
 
-	ret = acpi_bus_get_device(handle, &device);
-	if (ret)
+	if (!device)
 		return 0;
 
 	ret = acpi_match_device_ids(device, root_device_ids);
@@ -215,11 +214,10 @@ static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root,
 
 struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
 {
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	struct acpi_pci_root *root;
-	struct acpi_device *device;
 
-	if (acpi_bus_get_device(handle, &device) ||
-	    acpi_match_device_ids(device, root_device_ids))
+	if (!device || acpi_match_device_ids(device, root_device_ids))
 		return NULL;
 
 	root = acpi_driver_data(device);
@@ -324,7 +322,7 @@ EXPORT_SYMBOL_GPL(acpi_get_pci_dev);
  * acpi_pci_osc_control_set - Request control of PCI root _OSC features.
  * @handle: ACPI handle of a PCI root bridge (or PCIe Root Complex).
  * @mask: Mask of _OSC bits to request control of, place to store control mask.
- * @req: Mask of _OSC bits the control of is essential to the caller.
+ * @support: _OSC supported capability.
  *
  * Run _OSC query for @mask and if that is successful, compare the returned
  * mask of control bits with @req.  If all of the @req bits are set in the

drivers/acpi/pmic/intel_pmic.c

@@ -25,7 +25,7 @@ struct intel_pmic_opregion {
 	struct mutex lock;
 	struct acpi_lpat_conversion_table *lpat_table;
 	struct regmap *regmap;
-	struct intel_pmic_opregion_data *data;
+	const struct intel_pmic_opregion_data *data;
 	struct intel_pmic_regs_handler_ctx ctx;
 };
 
@@ -53,7 +53,7 @@ static acpi_status intel_pmic_power_handler(u32 function,
 {
 	struct intel_pmic_opregion *opregion = region_context;
 	struct regmap *regmap = opregion->regmap;
-	struct intel_pmic_opregion_data *d = opregion->data;
+	const struct intel_pmic_opregion_data *d = opregion->data;
 	int reg, bit, result;
 
 	if (bits != 32 || !value64)
@@ -95,7 +95,7 @@ static int pmic_read_temp(struct intel_pmic_opregion *opregion,
 		return 0;
 	}
 
-	temp = acpi_lpat_raw_to_temp(opregion->lpat_table, raw_temp);
+	temp = opregion->data->lpat_raw_to_temp(opregion->lpat_table, raw_temp);
 	if (temp < 0)
 		return temp;
 
@@ -135,7 +135,7 @@ static int pmic_thermal_aux(struct intel_pmic_opregion *opregion, int reg,
 static int pmic_thermal_pen(struct intel_pmic_opregion *opregion, int reg,
 			    int bit, u32 function, u64 *value)
 {
-	struct intel_pmic_opregion_data *d = opregion->data;
+	const struct intel_pmic_opregion_data *d = opregion->data;
 	struct regmap *regmap = opregion->regmap;
 
 	if (!d->get_policy || !d->update_policy)
@@ -171,7 +171,7 @@ static acpi_status intel_pmic_thermal_handler(u32 function,
 		void *handler_context, void *region_context)
 {
 	struct intel_pmic_opregion *opregion = region_context;
-	struct intel_pmic_opregion_data *d = opregion->data;
+	const struct intel_pmic_opregion_data *d = opregion->data;
 	int reg, bit, result;
 
 	if (bits != 32 || !value64)
@@ -255,7 +255,7 @@ static acpi_status intel_pmic_regs_handler(u32 function,
 
 int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle,
 					struct regmap *regmap,
-					struct intel_pmic_opregion_data *d)
+					const struct intel_pmic_opregion_data *d)
 {
 	acpi_status status = AE_OK;
 	struct intel_pmic_opregion *opregion;
@@ -344,7 +344,7 @@ EXPORT_SYMBOL_GPL(intel_pmic_install_opregion_handler);
 int intel_soc_pmic_exec_mipi_pmic_seq_element(u16 i2c_address, u32 reg_address,
 					      u32 value, u32 mask)
 {
-	struct intel_pmic_opregion_data *d;
+	const struct intel_pmic_opregion_data *d;
 	int ret;
 
 	if (!intel_pmic_opregion) {

drivers/acpi/pmic/intel_pmic.h

@@ -2,6 +2,8 @@
 #ifndef __INTEL_PMIC_H
 #define __INTEL_PMIC_H
 
+#include <acpi/acpi_lpat.h>
+
 struct pmic_table {
 	int address;	/* operation region address */
 	int reg;	/* corresponding thermal register */
@@ -17,6 +19,8 @@ struct intel_pmic_opregion_data {
 	int (*update_policy)(struct regmap *r, int reg, int bit, int enable);
 	int (*exec_mipi_pmic_seq_element)(struct regmap *r, u16 i2c_address,
 					  u32 reg_address, u32 value, u32 mask);
+	int (*lpat_raw_to_temp)(struct acpi_lpat_conversion_table *lpat_table,
+				int raw);
 	struct pmic_table *power_table;
 	int power_table_count;
 	struct pmic_table *thermal_table;
@@ -25,6 +29,8 @@ struct intel_pmic_opregion_data {
 	int pmic_i2c_address;
 };
 
-int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle, struct regmap *regmap, struct intel_pmic_opregion_data *d);
+int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle,
+					struct regmap *regmap,
+					const struct intel_pmic_opregion_data *d);
 
 #endif

drivers/acpi/pmic/intel_pmic_bxtwc.c

@@ -369,13 +369,14 @@ intel_bxtwc_pmic_update_policy(struct regmap *regmap,
 	return regmap_update_bits(regmap, reg, mask, val);
 }
 
-static struct intel_pmic_opregion_data intel_bxtwc_pmic_opregion_data = {
+static const struct intel_pmic_opregion_data intel_bxtwc_pmic_opregion_data = {
 	.get_power      = intel_bxtwc_pmic_get_power,
 	.update_power   = intel_bxtwc_pmic_update_power,
 	.get_raw_temp   = intel_bxtwc_pmic_get_raw_temp,
 	.update_aux     = intel_bxtwc_pmic_update_aux,
 	.get_policy     = intel_bxtwc_pmic_get_policy,
 	.update_policy  = intel_bxtwc_pmic_update_policy,
+	.lpat_raw_to_temp = acpi_lpat_raw_to_temp,
 	.power_table      = power_table,
 	.power_table_count = ARRAY_SIZE(power_table),
 	.thermal_table     = thermal_table,

drivers/acpi/pmic/intel_pmic_bytcrc.c

@@ -271,13 +271,14 @@ static int intel_crc_pmic_update_policy(struct regmap *regmap,
 	return 0;
 }
 
-static struct intel_pmic_opregion_data intel_crc_pmic_opregion_data = {
+static const struct intel_pmic_opregion_data intel_crc_pmic_opregion_data = {
 	.get_power	= intel_crc_pmic_get_power,
 	.update_power	= intel_crc_pmic_update_power,
 	.get_raw_temp	= intel_crc_pmic_get_raw_temp,
 	.update_aux	= intel_crc_pmic_update_aux,
 	.get_policy	= intel_crc_pmic_get_policy,
 	.update_policy	= intel_crc_pmic_update_policy,
+	.lpat_raw_to_temp = acpi_lpat_raw_to_temp,
 	.power_table	= power_table,
 	.power_table_count= ARRAY_SIZE(power_table),
 	.thermal_table	= thermal_table,

drivers/acpi/pmic/intel_pmic_chtcrc.c

@@ -23,7 +23,8 @@
  * intel_soc_pmic_exec_mipi_pmic_seq_element work on devices with a
  * CHT Crystal Cove PMIC.
  */
-static struct intel_pmic_opregion_data intel_chtcrc_pmic_opregion_data = {
+static const struct intel_pmic_opregion_data intel_chtcrc_pmic_opregion_data = {
+	.lpat_raw_to_temp = acpi_lpat_raw_to_temp,
 	.pmic_i2c_address = 0x6e,
 };
 

drivers/acpi/pmic/intel_pmic_chtdc_ti.c

@@ -94,10 +94,11 @@ static int chtdc_ti_pmic_get_raw_temp(struct regmap *regmap, int reg)
 	return ((buf[0] & 0x03) << 8) | buf[1];
 }
 
-static struct intel_pmic_opregion_data chtdc_ti_pmic_opregion_data = {
+static const struct intel_pmic_opregion_data chtdc_ti_pmic_opregion_data = {
 	.get_power = chtdc_ti_pmic_get_power,
 	.update_power = chtdc_ti_pmic_update_power,
 	.get_raw_temp = chtdc_ti_pmic_get_raw_temp,
+	.lpat_raw_to_temp = acpi_lpat_raw_to_temp,
 	.power_table = chtdc_ti_power_table,
 	.power_table_count = ARRAY_SIZE(chtdc_ti_power_table),
 	.thermal_table = chtdc_ti_thermal_table,

drivers/acpi/pmic/intel_pmic_chtwc.c

@@ -253,10 +253,11 @@ static int intel_cht_wc_exec_mipi_pmic_seq_element(struct regmap *regmap,
  * The thermal table and ops are empty, we do not support the Thermal opregion
  * (DPTF) due to lacking documentation.
  */
-static struct intel_pmic_opregion_data intel_cht_wc_pmic_opregion_data = {
+static const struct intel_pmic_opregion_data intel_cht_wc_pmic_opregion_data = {
 	.get_power		= intel_cht_wc_pmic_get_power,
 	.update_power		= intel_cht_wc_pmic_update_power,
 	.exec_mipi_pmic_seq_element = intel_cht_wc_exec_mipi_pmic_seq_element,
+	.lpat_raw_to_temp	= acpi_lpat_raw_to_temp,
 	.power_table		= power_table,
 	.power_table_count	= ARRAY_SIZE(power_table),
 };

drivers/acpi/pmic/intel_pmic_xpower.c

@@ -293,11 +293,33 @@ static int intel_xpower_exec_mipi_pmic_seq_element(struct regmap *regmap,
 	return ret;
 }
 
-static struct intel_pmic_opregion_data intel_xpower_pmic_opregion_data = {
+static int intel_xpower_lpat_raw_to_temp(struct acpi_lpat_conversion_table *lpat_table,
+					 int raw)
+{
+	struct acpi_lpat first = lpat_table->lpat[0];
+	struct acpi_lpat last = lpat_table->lpat[lpat_table->lpat_count - 1];
+
+	/*
+	 * Some LPAT tables in the ACPI Device for the AXP288 PMIC for some
+	 * reason only describe a small temperature range, e.g. 27° - 37°
+	 * Celcius. Resulting in errors when the tablet is idle in a cool room.
+	 *
+	 * To avoid these errors clamp the raw value to be inside the LPAT.
+	 */
+	if (first.raw < last.raw)
+		raw = clamp(raw, first.raw, last.raw);
+	else
+		raw = clamp(raw, last.raw, first.raw);
+
+	return acpi_lpat_raw_to_temp(lpat_table, raw);
+}
+
+static const struct intel_pmic_opregion_data intel_xpower_pmic_opregion_data = {
 	.get_power = intel_xpower_pmic_get_power,
 	.update_power = intel_xpower_pmic_update_power,
 	.get_raw_temp = intel_xpower_pmic_get_raw_temp,
 	.exec_mipi_pmic_seq_element = intel_xpower_exec_mipi_pmic_seq_element,
+	.lpat_raw_to_temp = intel_xpower_lpat_raw_to_temp,
 	.power_table = power_table,
 	.power_table_count = ARRAY_SIZE(power_table),
 	.thermal_table = thermal_table,

drivers/acpi/power.c

@@ -81,9 +81,9 @@ struct acpi_power_resource *to_power_resource(struct acpi_device *device)
 
 static struct acpi_power_resource *acpi_power_get_context(acpi_handle handle)
 {
-	struct acpi_device *device;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 
-	if (acpi_bus_get_device(handle, &device))
+	if (!device)
 		return NULL;
 
 	return to_power_resource(device);
@@ -716,6 +716,9 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
 
 	mutex_lock(&acpi_device_lock);
 
+	dev_dbg(&dev->dev, "Enabling wakeup power (count %d)\n",
+		dev->wakeup.prepare_count);
+
 	if (dev->wakeup.prepare_count++)
 		goto out;
 
@@ -734,8 +737,11 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
 	if (err) {
 		acpi_power_off_list(&dev->wakeup.resources);
 		dev->wakeup.prepare_count = 0;
+		goto out;
 	}
 
+	dev_dbg(&dev->dev, "Wakeup power enabled\n");
+
  out:
 	mutex_unlock(&acpi_device_lock);
 	return err;
@@ -757,6 +763,9 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
 
 	mutex_lock(&acpi_device_lock);
 
+	dev_dbg(&dev->dev, "Disabling wakeup power (count %d)\n",
+		dev->wakeup.prepare_count);
+
 	/* Do nothing if wakeup power has not been enabled for this device. */
 	if (dev->wakeup.prepare_count <= 0)
 		goto out;
@@ -782,8 +791,11 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
 	if (err) {
 		dev_err(&dev->dev, "Cannot turn off wakeup power resources\n");
 		dev->wakeup.flags.valid = 0;
+		goto out;
 	}
 
+	dev_dbg(&dev->dev, "Wakeup power disabled\n");
+
  out:
 	mutex_unlock(&acpi_device_lock);
 	return err;
@@ -916,15 +928,14 @@ static void acpi_power_add_resource_to_list(struct acpi_power_resource *resource
 
 struct acpi_device *acpi_add_power_resource(acpi_handle handle)
 {
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	struct acpi_power_resource *resource;
-	struct acpi_device *device = NULL;
 	union acpi_object acpi_object;
 	struct acpi_buffer buffer = { sizeof(acpi_object), &acpi_object };
 	acpi_status status;
 	u8 state_dummy;
 	int result;
 
-	acpi_bus_get_device(handle, &device);
 	if (device)
 		return device;
 

drivers/acpi/processor_driver.c

@@ -98,8 +98,13 @@ static int acpi_soft_cpu_online(unsigned int cpu)
 	struct acpi_processor *pr = per_cpu(processors, cpu);
 	struct acpi_device *device;
 
-	if (!pr || acpi_bus_get_device(pr->handle, &device))
+	if (!pr)
+		return 0;
+
+	device = acpi_fetch_acpi_dev(pr->handle);
+	if (!device)
 		return 0;
+
 	/*
 	 * CPU got physically hotplugged and onlined for the first time:
 	 * Initialize missing things.
@@ -125,9 +130,8 @@ static int acpi_soft_cpu_online(unsigned int cpu)
 static int acpi_soft_cpu_dead(unsigned int cpu)
 {
 	struct acpi_processor *pr = per_cpu(processors, cpu);
-	struct acpi_device *device;
 
-	if (!pr || acpi_bus_get_device(pr->handle, &device))
+	if (!pr || !acpi_fetch_acpi_dev(pr->handle))
 		return 0;
 
 	acpi_processor_reevaluate_tstate(pr, true);

drivers/acpi/processor_idle.c

@@ -20,6 +20,7 @@
 #include <linux/tick.h>
 #include <linux/cpuidle.h>
 #include <linux/cpu.h>
+#include <linux/minmax.h>
 #include <acpi/processor.h>
 
 /*
@@ -400,13 +401,10 @@ static int acpi_cst_latency_cmp(const void *a, const void *b)
 static void acpi_cst_latency_swap(void *a, void *b, int n)
 {
 	struct acpi_processor_cx *x = a, *y = b;
-	u32 tmp;
 
 	if (!(x->valid && y->valid))
 		return;
-	tmp = x->latency;
-	x->latency = y->latency;
-	y->latency = tmp;
+	swap(x->latency, y->latency);
 }
 
 static int acpi_processor_power_verify(struct acpi_processor *pr)
@@ -567,7 +565,8 @@ static int acpi_idle_play_dead(struct cpuidle_device *dev, int index)
 {
 	struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu);
 
-	ACPI_FLUSH_CPU_CACHE();
+	if (cx->type == ACPI_STATE_C3)
+		ACPI_FLUSH_CPU_CACHE();
 
 	while (1) {
 
@@ -1101,7 +1100,7 @@ static int acpi_processor_get_lpi_info(struct acpi_processor *pr)
 
 	status = acpi_get_parent(handle, &pr_ahandle);
 	while (ACPI_SUCCESS(status)) {
-		acpi_bus_get_device(pr_ahandle, &d);
+		d = acpi_fetch_acpi_dev(pr_ahandle);
 		handle = pr_ahandle;
 
 		if (strcmp(acpi_device_hid(d), ACPI_PROCESSOR_CONTAINER_HID))

drivers/acpi/processor_thermal.c

@@ -53,10 +53,17 @@ static int phys_package_first_cpu(int cpu)
 
 static int cpu_has_cpufreq(unsigned int cpu)
 {
-	struct cpufreq_policy policy;
-	if (!acpi_processor_cpufreq_init || cpufreq_get_policy(&policy, cpu))
+	struct cpufreq_policy *policy;
+
+	if (!acpi_processor_cpufreq_init)
 		return 0;
-	return 1;
+
+	policy = cpufreq_cpu_get(cpu);
+	if (policy) {
+		cpufreq_cpu_put(policy);
+		return 1;
+	}
+	return 0;
 }
 
 static int cpufreq_get_max_state(unsigned int cpu)

drivers/acpi/property.c

@@ -687,9 +687,9 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
 		if (index)
 			return -EINVAL;
 
-		ret = acpi_bus_get_device(obj->reference.handle, &device);
-		if (ret)
-			return ret == -ENODEV ? -EINVAL : ret;
+		device = acpi_fetch_acpi_dev(obj->reference.handle);
+		if (!device)
+			return -EINVAL;
 
 		args->fwnode = acpi_fwnode_handle(device);
 		args->nargs = 0;
@@ -719,9 +719,8 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
 		if (element->type == ACPI_TYPE_LOCAL_REFERENCE) {
 			struct fwnode_handle *ref_fwnode;
 
-			ret = acpi_bus_get_device(element->reference.handle,
-						  &device);
-			if (ret)
+			device = acpi_fetch_acpi_dev(element->reference.handle);
+			if (!device)
 				return -EINVAL;
 
 			nargs = 0;

drivers/acpi/resource.c

@@ -791,9 +791,9 @@ static acpi_status acpi_res_consumer_cb(acpi_handle handle, u32 depth,
 {
 	struct resource *res = context;
 	struct acpi_device **consumer = (struct acpi_device **) ret;
-	struct acpi_device *adev;
+	struct acpi_device *adev = acpi_fetch_acpi_dev(handle);
 
-	if (acpi_bus_get_device(handle, &adev))
+	if (!adev)
 		return AE_OK;
 
 	if (acpi_dev_consumes_res(adev, res)) {

drivers/acpi/scan.c

@@ -135,12 +135,12 @@ bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent)
 static acpi_status acpi_bus_offline(acpi_handle handle, u32 lvl, void *data,
 				    void **ret_p)
 {
-	struct acpi_device *device = NULL;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	struct acpi_device_physical_node *pn;
 	bool second_pass = (bool)data;
 	acpi_status status = AE_OK;
 
-	if (acpi_bus_get_device(handle, &device))
+	if (!device)
 		return AE_OK;
 
 	if (device->handler && !device->handler->hotplug.enabled) {
@@ -180,10 +180,10 @@ static acpi_status acpi_bus_offline(acpi_handle handle, u32 lvl, void *data,
 static acpi_status acpi_bus_online(acpi_handle handle, u32 lvl, void *data,
 				   void **ret_p)
 {
-	struct acpi_device *device = NULL;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	struct acpi_device_physical_node *pn;
 
-	if (acpi_bus_get_device(handle, &device))
+	if (!device)
 		return AE_OK;
 
 	mutex_lock(&device->physical_node_lock);
@@ -599,6 +599,19 @@ int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device)
 }
 EXPORT_SYMBOL(acpi_bus_get_device);
 
+/**
+ * acpi_fetch_acpi_dev - Retrieve ACPI device object.
+ * @handle: ACPI handle associated with the requested ACPI device object.
+ *
+ * Return a pointer to the ACPI device object associated with @handle, if
+ * present, or NULL otherwise.
+ */
+struct acpi_device *acpi_fetch_acpi_dev(acpi_handle handle)
+{
+	return handle_to_device(handle, NULL);
+}
+EXPORT_SYMBOL_GPL(acpi_fetch_acpi_dev);
+
 static void get_acpi_device(void *dev)
 {
 	acpi_dev_get(dev);
@@ -805,7 +818,7 @@ static const char * const acpi_honor_dep_ids[] = {
 
 static struct acpi_device *acpi_bus_get_parent(acpi_handle handle)
 {
-	struct acpi_device *device = NULL;
+	struct acpi_device *device;
 	acpi_status status;
 
 	/*
@@ -820,7 +833,9 @@ static struct acpi_device *acpi_bus_get_parent(acpi_handle handle)
 		status = acpi_get_parent(handle, &handle);
 		if (ACPI_FAILURE(status))
 			return status == AE_NULL_ENTRY ? NULL : acpi_root;
-	} while (acpi_bus_get_device(handle, &device));
+
+		device = acpi_fetch_acpi_dev(handle);
+	} while (!device);
 	return device;
 }
 
@@ -1346,11 +1361,11 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
 		if (info->valid & ACPI_VALID_HID) {
 			acpi_add_id(pnp, info->hardware_id.string);
 			pnp->type.platform_id = 1;
-		}
-		if (info->valid & ACPI_VALID_CID) {
-			cid_list = &info->compatible_id_list;
-			for (i = 0; i < cid_list->count; i++)
-				acpi_add_id(pnp, cid_list->ids[i].string);
+			if (info->valid & ACPI_VALID_CID) {
+				cid_list = &info->compatible_id_list;
+				for (i = 0; i < cid_list->count; i++)
+					acpi_add_id(pnp, cid_list->ids[i].string);
+			}
 		}
 		if (info->valid & ACPI_VALID_ADR) {
 			pnp->bus_address = info->address;
@@ -1701,6 +1716,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 {
 	struct list_head resource_list;
 	bool is_serial_bus_slave = false;
+	static const struct acpi_device_id ignore_serial_bus_ids[] = {
 	/*
 	 * These devices have multiple I2cSerialBus resources and an i2c-client
 	 * must be instantiated for each, each with its own i2c_device_id.
@@ -1709,11 +1725,18 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 	 * drivers/platform/x86/i2c-multi-instantiate.c driver, which knows
 	 * which i2c_device_id to use for each resource.
 	 */
-	static const struct acpi_device_id i2c_multi_instantiate_ids[] = {
 		{"BSG1160", },
 		{"BSG2150", },
 		{"INT33FE", },
 		{"INT3515", },
+	/*
+	 * HIDs of device with an UartSerialBusV2 resource for which userspace
+	 * expects a regular tty cdev to be created (instead of the in kernel
+	 * serdev) and which have a kernel driver which expects a platform_dev
+	 * such as the rfkill-gpio driver.
+	 */
+		{"BCM4752", },
+		{"LNV4752", },
 		{}
 	};
 
@@ -1727,8 +1750,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 	     fwnode_property_present(&device->fwnode, "baud")))
 		return true;
 
-	/* Instantiate a pdev for the i2c-multi-instantiate drv to bind to */
-	if (!acpi_match_device_ids(device, i2c_multi_instantiate_ids))
+	if (!acpi_match_device_ids(device, ignore_serial_bus_ids))
 		return false;
 
 	INIT_LIST_HEAD(&resource_list);
@@ -2015,11 +2037,10 @@ static bool acpi_bus_scan_second_pass;
 static acpi_status acpi_bus_check_add(acpi_handle handle, bool check_dep,
 				      struct acpi_device **adev_p)
 {
-	struct acpi_device *device = NULL;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	acpi_object_type acpi_type;
 	int type;
 
-	acpi_bus_get_device(handle, &device);
 	if (device)
 		goto out;
 
@@ -2577,8 +2598,8 @@ int __init acpi_scan_init(void)
 	if (result)
 		goto out;
 
-	result = acpi_bus_get_device(ACPI_ROOT_OBJECT, &acpi_root);
-	if (result)
+	acpi_root = acpi_fetch_acpi_dev(ACPI_ROOT_OBJECT);
+	if (!acpi_root)
 		goto out;
 
 	/* Fixed feature devices do not exist on HW-reduced platform */

drivers/acpi/sleep.c

@@ -73,7 +73,6 @@ static int acpi_sleep_prepare(u32 acpi_state)
 		acpi_set_waking_vector(acpi_wakeup_address);
 
 	}
-	ACPI_FLUSH_CPU_CACHE();
 #endif
 	pr_info("Preparing to enter system sleep state S%d\n", acpi_state);
 	acpi_enable_wakeup_devices(acpi_state);
@@ -566,8 +565,6 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 	u32 acpi_state = acpi_target_sleep_state;
 	int error;
 
-	ACPI_FLUSH_CPU_CACHE();
-
 	trace_suspend_resume(TPS("acpi_suspend"), acpi_state, true);
 	switch (acpi_state) {
 	case ACPI_STATE_S1:
@@ -903,8 +900,6 @@ static int acpi_hibernation_enter(void)
 {
 	acpi_status status = AE_OK;
 
-	ACPI_FLUSH_CPU_CACHE();
-
 	/* This shouldn't return.  If it returns, we have a problem */
 	status = acpi_enter_sleep_state(ACPI_STATE_S4);
 	/* Reprogram control registers */

drivers/acpi/sysfs.c

@@ -939,10 +939,11 @@ static struct attribute *hotplug_profile_attrs[] = {
 	&hotplug_enabled_attr.attr,
 	NULL
 };
+ATTRIBUTE_GROUPS(hotplug_profile);
 
 static struct kobj_type acpi_hotplug_profile_ktype = {
 	.sysfs_ops = &kobj_sysfs_ops,
-	.default_attrs = hotplug_profile_attrs,
+	.default_groups = hotplug_profile_groups,
 };
 
 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,

drivers/acpi/tables.c

@@ -500,7 +500,7 @@ static const char table_sigs[][ACPI_NAMESEG_SIZE] __initconst = {
 	ACPI_SIG_WDDT, ACPI_SIG_WDRT, ACPI_SIG_DSDT, ACPI_SIG_FADT,
 	ACPI_SIG_PSDT, ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT,
 	ACPI_SIG_IORT, ACPI_SIG_NFIT, ACPI_SIG_HMAT, ACPI_SIG_PPTT,
-	ACPI_SIG_NHLT };
+	ACPI_SIG_NHLT, ACPI_SIG_AEST };
 
 #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)
 
@@ -723,7 +723,7 @@ static void __init acpi_table_initrd_scan(void)
 		/*
 		 * Mark the table to avoid being used in
 		 * acpi_table_initrd_override(). Though this is not possible
-		 * because override is disabled in acpi_install_table().
+		 * because override is disabled in acpi_install_physical_table().
 		 */
 		if (test_and_set_bit(table_index, acpi_initrd_installed)) {
 			acpi_os_unmap_memory(table, ACPI_HEADER_SIZE);
@@ -734,7 +734,7 @@ static void __init acpi_table_initrd_scan(void)
 			table->signature, table->oem_id,
 			table->oem_table_id);
 		acpi_os_unmap_memory(table, ACPI_HEADER_SIZE);
-		acpi_install_table(acpi_tables_addr + table_offset, TRUE);
+		acpi_install_physical_table(acpi_tables_addr + table_offset);
 next_table:
 		table_offset += table_length;
 		table_index++;

drivers/acpi/thermal.c

@@ -697,7 +697,6 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
 	struct acpi_device *device = cdev->devdata;
 	struct acpi_thermal *tz = thermal->devdata;
 	struct acpi_device *dev;
-	acpi_status status;
 	acpi_handle handle;
 	int i;
 	int j;
@@ -715,8 +714,8 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
 		for (i = 0; i < tz->trips.passive.devices.count;
 		    i++) {
 			handle = tz->trips.passive.devices.handles[i];
-			status = acpi_bus_get_device(handle, &dev);
-			if (ACPI_FAILURE(status) || dev != device)
+			dev = acpi_fetch_acpi_dev(handle);
+			if (dev != device)
 				continue;
 			if (bind)
 				result =
@@ -741,8 +740,8 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
 		    j < tz->trips.active[i].devices.count;
 		    j++) {
 			handle = tz->trips.active[i].devices.handles[j];
-			status = acpi_bus_get_device(handle, &dev);
-			if (ACPI_FAILURE(status) || dev != device)
+			dev = acpi_fetch_acpi_dev(handle);
+			if (dev != device)
 				continue;
 			if (bind)
 				result = thermal_zone_bind_cooling_device
@@ -1098,8 +1097,6 @@ static int acpi_thermal_resume(struct device *dev)
 		return -EINVAL;
 
 	for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
-		if (!(&tz->trips.active[i]))
-			break;
 		if (!tz->trips.active[i].flags.valid)
 			break;
 		tz->trips.active[i].flags.enabled = 1;

drivers/acpi/video_detect.c

@@ -59,18 +59,16 @@ static void acpi_video_parse_cmdline(void)
 static acpi_status
 find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
 {
+	struct acpi_device *acpi_dev = acpi_fetch_acpi_dev(handle);
 	long *cap = context;
 	struct pci_dev *dev;
-	struct acpi_device *acpi_dev;
 
 	static const struct acpi_device_id video_ids[] = {
 		{ACPI_VIDEO_HID, 0},
 		{"", 0},
 	};
-	if (acpi_bus_get_device(handle, &acpi_dev))
-		return AE_OK;
 
-	if (!acpi_match_device_ids(acpi_dev, video_ids)) {
+	if (acpi_dev && !acpi_match_device_ids(acpi_dev, video_ids)) {
 		dev = acpi_get_pci_dev(handle);
 		if (!dev)
 			return AE_OK;

drivers/acpi/x86/s2idle.c

@@ -293,9 +293,9 @@ static void lpi_check_constraints(void)
 
 	for (i = 0; i < lpi_constraints_table_size; ++i) {
 		acpi_handle handle = lpi_constraints_table[i].handle;
-		struct acpi_device *adev;
+		struct acpi_device *adev = acpi_fetch_acpi_dev(handle);
 
-		if (!handle || acpi_bus_get_device(handle, &adev))
+		if (!adev)
 			continue;
 
 		acpi_handle_debug(handle,

drivers/i2c/i2c-core-acpi.c

@@ -257,6 +257,13 @@ static void i2c_acpi_register_device(struct i2c_adapter *adapter,
 				     struct acpi_device *adev,
 				     struct i2c_board_info *info)
 {
+	/*
+	 * Skip registration on boards where the ACPI tables are
+	 * known to contain bogus I2C devices.
+	 */
+	if (acpi_quirk_skip_i2c_client_enumeration(adev))
+		return;
+
 	adev->power.flags.ignore_parent = true;
 	acpi_device_set_enumerated(adev);
 

drivers/mmc/host/sdhci-acpi.c

@@ -31,10 +31,8 @@
 #include <linux/mmc/slot-gpio.h>
 
 #ifdef CONFIG_X86
-#include <asm/cpu_device_id.h>
-#include <asm/intel-family.h>
+#include <linux/platform_data/x86/soc.h>
 #include <asm/iosf_mbi.h>
-#include <linux/pci.h>
 #endif
 
 #include "sdhci.h"
@@ -240,26 +238,6 @@ static const struct sdhci_acpi_chip sdhci_acpi_chip_int = {
 
 #ifdef CONFIG_X86
 
-static bool sdhci_acpi_byt(void)
-{
-	static const struct x86_cpu_id byt[] = {
-		X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT, NULL),
-		{}
-	};
-
-	return x86_match_cpu(byt);
-}
-
-static bool sdhci_acpi_cht(void)
-{
-	static const struct x86_cpu_id cht[] = {
-		X86_MATCH_INTEL_FAM6_MODEL(ATOM_AIRMONT, NULL),
-		{}
-	};
-
-	return x86_match_cpu(cht);
-}
-
 #define BYT_IOSF_SCCEP			0x63
 #define BYT_IOSF_OCP_NETCTRL0		0x1078
 #define BYT_IOSF_OCP_TIMEOUT_BASE	GENMASK(10, 8)
@@ -268,7 +246,7 @@ static void sdhci_acpi_byt_setting(struct device *dev)
 {
 	u32 val = 0;
 
-	if (!sdhci_acpi_byt())
+	if (!soc_intel_is_byt())
 		return;
 
 	if (iosf_mbi_read(BYT_IOSF_SCCEP, MBI_CR_READ, BYT_IOSF_OCP_NETCTRL0,
@@ -293,7 +271,7 @@ static void sdhci_acpi_byt_setting(struct device *dev)
 
 static bool sdhci_acpi_byt_defer(struct device *dev)
 {
-	if (!sdhci_acpi_byt())
+	if (!soc_intel_is_byt())
 		return false;
 
 	if (!iosf_mbi_available())
@@ -304,43 +282,6 @@ static bool sdhci_acpi_byt_defer(struct device *dev)
 	return false;
 }
 
-static bool sdhci_acpi_cht_pci_wifi(unsigned int vendor, unsigned int device,
-				    unsigned int slot, unsigned int parent_slot)
-{
-	struct pci_dev *dev, *parent, *from = NULL;
-
-	while (1) {
-		dev = pci_get_device(vendor, device, from);
-		pci_dev_put(from);
-		if (!dev)
-			break;
-		parent = pci_upstream_bridge(dev);
-		if (ACPI_COMPANION(&dev->dev) && PCI_SLOT(dev->devfn) == slot &&
-		    parent && PCI_SLOT(parent->devfn) == parent_slot &&
-		    !pci_upstream_bridge(parent)) {
-			pci_dev_put(dev);
-			return true;
-		}
-		from = dev;
-	}
-
-	return false;
-}
-
-/*
- * GPDwin uses PCI wifi which conflicts with SDIO's use of
- * acpi_device_fix_up_power() on child device nodes. Identifying GPDwin is
- * problematic, but since SDIO is only used for wifi, the presence of the PCI
- * wifi card in the expected slot with an ACPI companion node, is used to
- * indicate that acpi_device_fix_up_power() should be avoided.
- */
-static inline bool sdhci_acpi_no_fixup_child_power(struct acpi_device *adev)
-{
-	return sdhci_acpi_cht() &&
-	       acpi_dev_hid_uid_match(adev, "80860F14", "2") &&
-	       sdhci_acpi_cht_pci_wifi(0x14e4, 0x43ec, 0, 28);
-}
-
 #else
 
 static inline void sdhci_acpi_byt_setting(struct device *dev)
@@ -352,11 +293,6 @@ static inline bool sdhci_acpi_byt_defer(struct device *dev)
 	return false;
 }
 
-static inline bool sdhci_acpi_no_fixup_child_power(struct acpi_device *adev)
-{
-	return false;
-}
-
 #endif
 
 static int bxt_get_cd(struct mmc_host *mmc)
@@ -861,11 +797,9 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 
 	/* Power on the SDHCI controller and its children */
 	acpi_device_fix_up_power(device);
-	if (!sdhci_acpi_no_fixup_child_power(device)) {
-		list_for_each_entry(child, &device->children, node)
-			if (child->status.present && child->status.enabled)
-				acpi_device_fix_up_power(child);
-	}
+	list_for_each_entry(child, &device->children, node)
+		if (child->status.present && child->status.enabled)
+			acpi_device_fix_up_power(child);
 
 	if (sdhci_acpi_byt_defer(dev))
 		return -EPROBE_DEFER;

drivers/tty/serdev/core.c

@@ -727,10 +727,24 @@ static acpi_status acpi_serdev_add_device(acpi_handle handle, u32 level,
 static int acpi_serdev_register_devices(struct serdev_controller *ctrl)
 {
 	acpi_status status;
+	bool skip;
+	int ret;
 
 	if (!has_acpi_companion(ctrl->dev.parent))
 		return -ENODEV;
 
+	/*
+	 * Skip registration on boards where the ACPI tables are known to
+	 * contain buggy devices. Note serdev_controller_add() must still
+	 * succeed in this case, so that the proper serdev devices can be
+	 * added "manually" later.
+	 */
+	ret = acpi_quirk_skip_serdev_enumeration(ctrl->dev.parent, &skip);
+	if (ret)
+		return ret;
+	if (skip)
+		return 0;
+
 	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
 				     SERDEV_ACPI_MAX_SCAN_DEPTH,
 				     acpi_serdev_add_device, NULL, ctrl, NULL);

include/acpi/acpi_bus.h

@@ -507,6 +507,7 @@ extern int unregister_acpi_notifier(struct notifier_block *);
  */
 
 int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
+struct acpi_device *acpi_fetch_acpi_dev(acpi_handle handle);
 acpi_status acpi_bus_get_status_handle(acpi_handle handle,
 				       unsigned long long *sta);
 int acpi_bus_get_status(struct acpi_device *device);
@@ -615,12 +616,34 @@ 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);
+bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status);
+bool acpi_quirk_skip_acpi_ac_and_battery(void);
 #else
-static inline bool acpi_device_always_present(struct acpi_device *adev)
+static inline bool acpi_device_override_status(struct acpi_device *adev,
+					       unsigned long long *status)
 {
 	return false;
 }
+static inline bool acpi_quirk_skip_acpi_ac_and_battery(void)
+{
+	return false;
+}
+#endif
+
+#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
+bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev);
+int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip);
+#else
+static inline bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev)
+{
+	return false;
+}
+static inline int
+acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip)
+{
+	*skip = false;
+	return 0;
+}
 #endif
 
 #ifdef CONFIG_PM

include/acpi/acpi_numa.h

@@ -3,7 +3,6 @@
 #define __ACPI_NUMA_H
 
 #ifdef CONFIG_ACPI_NUMA
-#include <linux/kernel.h>
 #include <linux/numa.h>
 
 /* Proximity bitmap length */

include/acpi/acpixf.h

@@ -12,7 +12,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20210930
+#define ACPI_CA_VERSION                 0x20211217
 
 #include <acpi/acconfig.h>
 #include <acpi/actypes.h>
@@ -454,9 +454,11 @@ ACPI_EXTERNAL_RETURN_STATUS(acpi_status
  * ACPI table load/unload interfaces
  */
 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
-			    acpi_install_table(acpi_physical_address address,
-					       u8 physical))
+			    acpi_install_table(struct acpi_table_header *table))
 
+ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
+			    acpi_install_physical_table(acpi_physical_address
+							address))
 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
 			    acpi_load_table(struct acpi_table_header *table,
 					    u32 *table_idx))

include/acpi/actbl2.h

@@ -24,6 +24,7 @@
  * file. Useful because they make it more difficult to inadvertently type in
  * the wrong signature.
  */
+#define ACPI_SIG_AGDI           "AGDI"	/* Arm Generic Diagnostic Dump and Reset Device Interface */
 #define ACPI_SIG_BDAT           "BDAT"	/* BIOS Data ACPI Table */
 #define ACPI_SIG_IORT           "IORT"	/* IO Remapping Table */
 #define ACPI_SIG_IVRS           "IVRS"	/* I/O Virtualization Reporting Structure */
@@ -48,6 +49,7 @@
 #define ACPI_SIG_SDEI           "SDEI"	/* Software Delegated Exception Interface Table */
 #define ACPI_SIG_SDEV           "SDEV"	/* Secure Devices table */
 #define ACPI_SIG_SVKL           "SVKL"	/* Storage Volume Key Location Table */
+#define ACPI_SIG_TDEL           "TDEL"	/* TD Event Log Table */
 
 /*
  * All tables must be byte-packed to match the ACPI specification, since
@@ -154,7 +156,7 @@ typedef struct acpi_aest_processor_tlb {
 /* 2R: Processor Generic Resource Substructure */
 
 typedef struct acpi_aest_processor_generic {
-	u8 *resource;
+	u32 resource;
 
 } acpi_aest_processor_generic;
 
@@ -237,6 +239,25 @@ typedef struct acpi_aest_node_interrupt {
 #define ACPI_AEST_NODE_ERROR_RECOVERY       1
 #define ACPI_AEST_XRUPT_RESERVED            2	/* 2 and above are reserved */
 
+/*******************************************************************************
+ * AGDI - Arm Generic Diagnostic Dump and Reset Device Interface
+ *
+ * Conforms to "ACPI for Arm Components 1.1, Platform Design Document"
+ * ARM DEN0093 v1.1
+ *
+ ******************************************************************************/
+struct acpi_table_agdi {
+	struct acpi_table_header header;	/* Common ACPI table header */
+	u8 flags;
+	u8 reserved[3];
+	u32 sdei_event;
+	u32 gsiv;
+};
+
+/* Mask for Flags field above */
+
+#define ACPI_AGDI_SIGNALING_MODE (1)
+
 /*******************************************************************************
  *
  * BDAT - BIOS Data ACPI Table
@@ -1495,12 +1516,10 @@ struct acpi_nhlt_device_specific_config_a {
 
 /* Values for Config Type above */
 
-#define ACPI_NHLT_TYPE_MIC_ARRAY            0x01
-#define ACPI_NHLT_TYPE_GENERIC              0x00
-
-/* Mask for Extension field of array_type */
-
-#define ACPI_NHLT_ARRAY_TYPE_MASK           0x10
+#define ACPI_NHLT_CONFIG_TYPE_GENERIC              0x00
+#define ACPI_NHLT_CONFIG_TYPE_MIC_ARRAY            0x01
+#define ACPI_NHLT_CONFIG_TYPE_RENDER_FEEDBACK      0x03
+#define ACPI_NHLT_CONFIG_TYPE_RESERVED             0x04	/* 4 and above are reserved */
 
 struct acpi_nhlt_device_specific_config_b {
 	u32 capabilities_size;
@@ -1511,6 +1530,11 @@ struct acpi_nhlt_device_specific_config_c {
 	u8 virtual_slot;
 };
 
+struct acpi_nhlt_render_device_specific_config {
+	u32 capabilities_size;
+	u8 virtual_slot;
+};
+
 struct acpi_nhlt_wave_extensible {
 	u16 format_tag;
 	u16 channel_count;
@@ -1573,17 +1597,22 @@ struct acpi_nhlt_mic_device_specific_config {
 
 /* Values for array_type_ext above */
 
-#define SMALL_LINEAR_2ELEMENT               0x0A
-#define BIG_LINEAR_2ELEMENT                 0x0B
-#define FIRST_GEOMETRY_LINEAR_4ELEMENT      0x0C
-#define PLANAR_LSHAPED_4ELEMENT             0x0D
-#define SECOND_GEOMETRY_LINEAR_4ELEMENT     0x0E
-#define VENDOR_DEFINED                      0x0F
-#define ARRAY_TYPE_MASK                     0x0F
-#define ARRAY_TYPE_EXT_MASK                 0x10
+#define ACPI_NHLT_ARRAY_TYPE_RESERVED               0x09	// 9 and below are reserved
+#define ACPI_NHLT_SMALL_LINEAR_2ELEMENT             0x0A
+#define ACPI_NHLT_BIG_LINEAR_2ELEMENT               0x0B
+#define ACPI_NHLT_FIRST_GEOMETRY_LINEAR_4ELEMENT    0x0C
+#define ACPI_NHLT_PLANAR_LSHAPED_4ELEMENT           0x0D
+#define ACPI_NHLT_SECOND_GEOMETRY_LINEAR_4ELEMENT   0x0E
+#define ACPI_NHLT_VENDOR_DEFINED                    0x0F
+#define ACPI_NHLT_ARRAY_TYPE_MASK                   0x0F
+#define ACPI_NHLT_ARRAY_TYPE_EXT_MASK               0x10
+
+#define ACPI_NHLT_NO_EXTENSION                      0x0
+#define ACPI_NHLT_MIC_SNR_SENSITIVITY_EXT           (1<<4)
 
-#define NO_EXTENSION                        0x0
-#define MIC_SNR_SENSITIVITY_EXT             0x1
+struct acpi_nhlt_vendor_mic_count {
+	u8 microphone_count;
+};
 
 struct acpi_nhlt_vendor_mic_config {
 	u8 type;
@@ -1603,22 +1632,25 @@ struct acpi_nhlt_vendor_mic_config {
 
 /* Values for Type field above */
 
-#define MIC_OMNIDIRECTIONAL                 0
-#define MIC_SUBCARDIOID                     1
-#define MIC_CARDIOID                        2
-#define MIC_SUPER_CARDIOID                  3
-#define MIC_HYPER_CARDIOID                  4
-#define MIC_8_SHAPED                        5
-#define MIC_VENDOR_DEFINED                  7
+#define ACPI_NHLT_MIC_OMNIDIRECTIONAL       0
+#define ACPI_NHLT_MIC_SUBCARDIOID           1
+#define ACPI_NHLT_MIC_CARDIOID              2
+#define ACPI_NHLT_MIC_SUPER_CARDIOID        3
+#define ACPI_NHLT_MIC_HYPER_CARDIOID        4
+#define ACPI_NHLT_MIC_8_SHAPED              5
+#define ACPI_NHLT_MIC_RESERVED6             6	// 6 is reserved
+#define ACPI_NHLT_MIC_VENDOR_DEFINED        7
+#define ACPI_NHLT_MIC_RESERVED              8	// 8 and above are reserved
 
 /* Values for Panel field above */
 
-#define MIC_TOP                             0
-#define MIC_BOTTOM                          1
-#define MIC_LEFT                            2
-#define MIC_RIGHT                           3
-#define MIC_FRONT                           4
-#define MIC_REAR                            5
+#define ACPI_NHLT_MIC_POSITION_TOP          0
+#define ACPI_NHLT_MIC_POSITION_BOTTOM       1
+#define ACPI_NHLT_MIC_POSITION_LEFT         2
+#define ACPI_NHLT_MIC_POSITION_RIGHT        3
+#define ACPI_NHLT_MIC_POSITION_FRONT        4
+#define ACPI_NHLT_MIC_POSITION_BACK         5
+#define ACPI_NHLT_MIC_POSITION_RESERVED     6	// 6 and above are reserved
 
 struct acpi_nhlt_vendor_mic_device_specific_config {
 	struct acpi_nhlt_mic_device_specific_config mic_array_device_config;
@@ -1633,8 +1665,9 @@ struct acpi_nhlt_mic_snr_sensitivity_extension {
 	u32 sensitivity;
 };
 
+/* Render device with feedback */
+
 struct acpi_nhlt_render_feedback_device_specific_config {
-	struct acpi_nhlt_device_specific_config device_config;
 	u8 feedback_virtual_slot;	// render slot in case of capture
 	u16 feedback_channels;	// informative only
 	u16 feedback_valid_bits_per_sample;
@@ -1650,7 +1683,10 @@ struct acpi_nhlt_linux_specific_data {
 	u8 device_id[16];
 	u8 device_instance_id;
 	u8 device_port_id;
-	u8 filler[18];
+};
+
+struct acpi_nhlt_linux_specific_data_b {
+	u8 specific_data[18];
 };
 
 struct acpi_nhlt_table_terminator {
@@ -2455,6 +2491,22 @@ enum acpi_svkl_format {
 	ACPI_SVKL_FORMAT_RESERVED = 1	/* 1 and greater are reserved */
 };
 
+/*******************************************************************************
+ *
+ * TDEL - TD-Event Log
+ *        From: "Guest-Host-Communication Interface (GHCI) for Intel
+ *        Trust Domain Extensions (Intel TDX)".
+ *        September 2020
+ *
+ ******************************************************************************/
+
+struct acpi_table_tdel {
+	struct acpi_table_header header;	/* Common ACPI table header */
+	u32 reserved;
+	u64 log_area_minimum_length;
+	u64 log_area_start_address;
+};
+
 /* Reset to default packing */
 
 #pragma pack()

include/acpi/actypes.h

@@ -509,7 +509,6 @@ typedef u64 acpi_integer;
 #define ACPI_TO_POINTER(i)              ACPI_CAST_PTR (void, (acpi_size) (i))
 #define ACPI_TO_INTEGER(p)              ACPI_PTR_DIFF (p, (void *) 0)
 #define ACPI_OFFSET(d, f)               ACPI_PTR_DIFF (&(((d *) 0)->f), (void *) 0)
-#define ACPI_PHYSADDR_TO_PTR(i)         ACPI_TO_POINTER(i)
 #define ACPI_PTR_TO_PHYSADDR(i)         ACPI_TO_INTEGER(i)
 
 /* Optimizations for 4-character (32-bit) acpi_name manipulation */
@@ -536,8 +535,14 @@ typedef u64 acpi_integer;
  * Can be used with access_width of struct acpi_generic_address and access_size of
  * struct acpi_resource_generic_register.
  */
-#define ACPI_ACCESS_BIT_WIDTH(size)     (1 << ((size) + 2))
-#define ACPI_ACCESS_BYTE_WIDTH(size)    (1 << ((size) - 1))
+#define ACPI_ACCESS_BIT_SHIFT		2
+#define ACPI_ACCESS_BYTE_SHIFT		-1
+#define ACPI_ACCESS_BIT_MAX		(31 - ACPI_ACCESS_BIT_SHIFT)
+#define ACPI_ACCESS_BYTE_MAX		(31 - ACPI_ACCESS_BYTE_SHIFT)
+#define ACPI_ACCESS_BIT_DEFAULT		(8 - ACPI_ACCESS_BIT_SHIFT)
+#define ACPI_ACCESS_BYTE_DEFAULT	(8 - ACPI_ACCESS_BYTE_SHIFT)
+#define ACPI_ACCESS_BIT_WIDTH(size)	(1 << ((size) + ACPI_ACCESS_BIT_SHIFT))
+#define ACPI_ACCESS_BYTE_WIDTH(size)	(1 << ((size) + ACPI_ACCESS_BYTE_SHIFT))
 
 /*******************************************************************************
  *
@@ -1098,6 +1103,14 @@ struct acpi_connection_info {
 	u8 access_length;
 };
 
+/* Special Context data for PCC Opregion (ACPI 6.3) */
+
+struct acpi_pcc_info {
+	u8 subspace_id;
+	u16 length;
+	u8 *internal_buffer;
+};
+
 typedef
 acpi_status (*acpi_adr_space_setup) (acpi_handle region_handle,
 				     u32 function,
@@ -1215,6 +1228,10 @@ struct acpi_mem_space_context {
 	struct acpi_mem_mapping *first_mm;
 };
 
+struct acpi_data_table_space_context {
+	void *pointer;
+};
+
 /*
  * struct acpi_memory_list is used only if the ACPICA local cache is enabled
  */

include/acpi/processor.h

@@ -2,11 +2,16 @@
 #ifndef __ACPI_PROCESSOR_H
 #define __ACPI_PROCESSOR_H
 
-#include <linux/kernel.h>
 #include <linux/cpu.h>
 #include <linux/cpufreq.h>
 #include <linux/pm_qos.h>
+#include <linux/printk.h>
+#include <linux/sched.h>
+#include <linux/smp.h>
 #include <linux/thermal.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
 #include <asm/acpi.h>
 
 #define ACPI_PROCESSOR_CLASS		"processor"

include/linux/acpi.h

@@ -1389,6 +1389,12 @@ static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level)
 }
 #endif
 
+#ifdef CONFIG_ACPI_PCC
+void acpi_init_pcc(void);
+#else
+static inline void acpi_init_pcc(void) { }
+#endif
+
 #ifdef CONFIG_ACPI
 extern void acpi_device_notify(struct device *dev);
 extern void acpi_device_notify_remove(struct device *dev);