Merge tag 'acpi-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to the 20210604 upstream
  revision, add preliminary support for the Platform Runtime Mechanism
  (PRM), address issues related to the handling of device dependencies
  in the ACPI device eunmeration code, improve the tracking of ACPI
  power resource states, improve the ACPI support for suspend-to-idle on
  AMD systems, continue the unification of message printing in the ACPI
  code, address assorted issues and clean up the code in a number of
  places.

  Specifics:

   - Update ACPICA code in the kernel to upstrea revision 20210604
     including the following changes:

      - Add defines for the CXL Host Bridge Structureand and add the
        CFMWS structure definition to CEDT (Alison Schofield).
      - iASL: Finish support for the IVRS ACPI table (Bob Moore).
      - iASL: Add support for the SVKL table (Bob Moore).
      - iASL: Add full support for RGRT ACPI table (Bob Moore).
      - iASL: Add support for the BDAT ACPI table (Bob Moore).
      - iASL: add disassembler support for PRMT (Erik Kaneda).
      - Fix memory leak caused by _CID repair function (Erik Kaneda).
      - Add support for PlatformRtMechanism OpRegion (Erik Kaneda).
      - Add PRMT module header to facilitate parsing (Erik Kaneda).
      - Add _PLD panel positions (Fabian Wüthrich).
      - MADT: add Multiprocessor Wakeup Mailbox Structure and the SVKL
        table headers (Kuppuswamy Sathyanarayanan).
      - Use ACPI_FALLTHROUGH (Wei Ming Chen).

   - Add preliminary support for the Platform Runtime Mechanism (PRM) to
     allow the AML interpreter to call PRM functions (Erik Kaneda).

   - Address some issues related to the handling of device dependencies
     reported by _DEP in the ACPI device enumeration code and clean up
     some related pieces of it (Rafael Wysocki).

   - Improve the tracking of states of ACPI power resources (Rafael
     Wysocki).

   - Improve ACPI support for suspend-to-idle on AMD systems (Alex
     Deucher, Mario Limonciello, Pratik Vishwakarma).

   - Continue the unification and cleanup of message printing in the
     ACPI code (Hanjun Guo, Heiner Kallweit).

   - Fix possible buffer overrun issue with the description_show() sysfs
     attribute method (Krzysztof Wilczyński).

   - Improve the acpi_mask_gpe kernel command line parameter handling
     and clean up the core ACPI code related to sysfs (Andy Shevchenko,
     Baokun Li, Clayton Casciato).

   - Postpone bringing devices in the general ACPI PM domain to D0
     during resume from system-wide suspend until they are really needed
     (Dmitry Torokhov).

   - Make the ACPI processor driver fix up C-state latency if not
     ordered (Mario Limonciello).

   - Add support for identifying devices depening on the given one that
     are not its direct descendants with the help of _DEP (Daniel
     Scally).

   - Extend the checks related to ACPI IRQ overrides on x86 in order to
     avoid false-positives (Hui Wang).

   - Add battery DPTF participant for Intel SoCs (Sumeet Pawnikar).

   - Rearrange the ACPI fan driver and device power management code to
     use a common list of device IDs (Rafael Wysocki).

   - Fix clang CFI violation in the ACPI BGRT table parsing code and
     clean it up (Nathan Chancellor).

   - Add GPE-related quirks for some laptops to the EC driver (Chris
     Chiu, Zhang Rui).

   - Make the ACPI PPTT table parsing code populate the cache-id value
     if present in the firmware (James Morse).

   - Remove redundant clearing of context->ret.pointer from
     acpi_run_osc() (Hans de Goede).

   - Add missing acpi_put_table() in acpi_init_fpdt() (Jing Xiangfeng).

   - Make ACPI APEI handle ARM Processor Error CPER records like Memory
     Error ones to avoid user space task lockups (Xiaofei Tan).

   - Stop warning about disabled ACPI in APEI (Jon Hunter).

   - Fix fall-through warning for Clang in the SBSHC driver (Gustavo A.
     R. Silva).

   - Add custom DSDT file as Makefile prerequisite (Richard Fitzgerald).

   - Initialize local variable to avoid garbage being returned (Colin
     Ian King).

   - Simplify assorted pieces of code, address assorted coding style and
     documentation issues and comment typos (Baokun Li, Christophe
     JAILLET, Clayton Casciato, Liu Shixin, Shaokun Zhang, Wei Yongjun,
     Yang Li, Zhen Lei)"

* tag 'acpi-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (97 commits)
  ACPI: PM: postpone bringing devices to D0 unless we need them
  ACPI: tables: Add custom DSDT file as makefile prerequisite
  ACPI: bgrt: Use sysfs_emit
  ACPI: bgrt: Fix CFI violation
  ACPI: EC: trust DSDT GPE for certain HP laptop
  ACPI: scan: Simplify acpi_table_events_fn()
  ACPI: PM: Adjust behavior for field problems on AMD systems
  ACPI: PM: s2idle: Add support for new Microsoft UUID
  ACPI: PM: s2idle: Add support for multiple func mask
  ACPI: PM: s2idle: Refactor common code
  ACPI: PM: s2idle: Use correct revision id
  ACPI: sysfs: Remove tailing return statement in void function
  ACPI: sysfs: Use __ATTR_RO() and __ATTR_RW() macros
  ACPI: sysfs: Sort headers alphabetically
  ACPI: sysfs: Refactor param_get_trace_state() to drop dead code
  ACPI: sysfs: Unify pattern of memory allocations
  ACPI: sysfs: Allow bitmap list to be supplied to acpi_mask_gpe
  ACPI: sysfs: Make sparse happy about address space in use
  ACPI: scan: Fix race related to dropping dependencies
  ACPI: scan: Reorganize acpi_device_add()
  ...

9 files changed, 215 insertions, 6 deletions

diff --git a/include/acpi/acbuffer.h b/include/acpi/acbuffer.h
index 18197c16149f..3e8d969b22fe 100644
--- a/include/acpi/acbuffer.h
+++ b/include/acpi/acbuffer.h
@@ -207,4 +207,14 @@ struct acpi_pld_info {
 #define ACPI_PLD_GET_HORIZ_OFFSET(dword)        ACPI_GET_BITS (dword, 16, ACPI_16BIT_MASK)
 #define ACPI_PLD_SET_HORIZ_OFFSET(dword,value)  ACPI_SET_BITS (dword, 16, ACPI_16BIT_MASK, value)	/* Offset 128+16=144, Len 16 */
 
+/* Panel position defined in _PLD section of ACPI Specification 6.3 */
+
+#define ACPI_PLD_PANEL_TOP      0
+#define ACPI_PLD_PANEL_BOTTOM   1
+#define ACPI_PLD_PANEL_LEFT     2
+#define ACPI_PLD_PANEL_RIGHT    3
+#define ACPI_PLD_PANEL_FRONT    4
+#define ACPI_PLD_PANEL_BACK     5
+#define ACPI_PLD_PANEL_UNKNOWN  6
+
 #endif				/* ACBUFFER_H */
diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h
index e92f84fa8c68..0362cbb72359 100644
--- a/include/acpi/acconfig.h
+++ b/include/acpi/acconfig.h
@@ -188,6 +188,8 @@
 #define ACPI_MAX_GSBUS_DATA_SIZE        255
 #define ACPI_MAX_GSBUS_BUFFER_SIZE      ACPI_SERIAL_HEADER_SIZE + ACPI_MAX_GSBUS_DATA_SIZE
 
+#define ACPI_PRM_INPUT_BUFFER_SIZE      26
+
 /* _sx_d and _sx_w control methods */
 
 #define ACPI_NUM_sx_d_METHODS           4
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 3a82faac5767..d8e7235b4cf0 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -280,6 +280,12 @@ struct acpi_device_power {
 	struct acpi_device_power_state states[ACPI_D_STATE_COUNT];	/* Power states (D0-D3Cold) */
 };
 
+struct acpi_dep_data {
+	struct list_head node;
+	acpi_handle supplier;
+	acpi_handle consumer;
+};
+
 /* Performance Management */
 
 struct acpi_device_perf_flags {
@@ -498,8 +504,6 @@ extern int unregister_acpi_notifier(struct notifier_block *);
  */
 
 int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
-struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle);
-void acpi_bus_put_acpi_device(struct acpi_device *adev);
 acpi_status acpi_bus_get_status_handle(acpi_handle handle,
 				       unsigned long long *sta);
 int acpi_bus_get_status(struct acpi_device *device);
@@ -685,6 +689,8 @@ static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
 
 bool acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2);
 
+void acpi_dev_clear_dependencies(struct acpi_device *supplier);
+struct acpi_device *acpi_dev_get_first_consumer_dev(struct acpi_device *supplier);
 struct acpi_device *
 acpi_dev_get_next_match_dev(struct acpi_device *adev, const char *hid, const char *uid, s64 hrv);
 struct acpi_device *
@@ -718,6 +724,13 @@ static inline void acpi_dev_put(struct acpi_device *adev)
 {
 	put_device(&adev->dev);
 }
+
+struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle);
+
+static inline void acpi_bus_put_acpi_device(struct acpi_device *adev)
+{
+	acpi_dev_put(adev);
+}
 #else	/* CONFIG_ACPI */
 
 static inline int register_acpi_bus_type(void *bus) { return 0; }
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
index 40a91ce87e04..68e4d80c1b32 100644
--- a/include/acpi/acpi_numa.h
+++ b/include/acpi/acpi_numa.h
@@ -43,4 +43,4 @@ static inline void disable_hmat(void)
 {
 }
 #endif				/* CONFIG_ACPI_HMAT */
-#endif				/* __ACP_NUMA_H */
+#endif				/* __ACPI_NUMA_H */
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index f8d44b06f3e3..a43335961e30 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -12,7 +12,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20210331
+#define ACPI_CA_VERSION                 0x20210604
 
 #include <acpi/acconfig.h>
 #include <acpi/actypes.h>
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index ce59903c2695..ef2872dea01c 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -327,9 +327,20 @@ struct acpi_cedt_header {
 
 enum acpi_cedt_type {
 	ACPI_CEDT_TYPE_CHBS = 0,
-	ACPI_CEDT_TYPE_RESERVED = 1
+	ACPI_CEDT_TYPE_CFMWS = 1,
+	ACPI_CEDT_TYPE_RESERVED = 2,
 };
 
+/* Values for version field above */
+
+#define ACPI_CEDT_CHBS_VERSION_CXL11    (0)
+#define ACPI_CEDT_CHBS_VERSION_CXL20    (1)
+
+/* Values for length field above */
+
+#define ACPI_CEDT_CHBS_LENGTH_CXL11     (0x2000)
+#define ACPI_CEDT_CHBS_LENGTH_CXL20     (0x10000)
+
 /*
  * CEDT subtables
  */
@@ -345,6 +356,34 @@ struct acpi_cedt_chbs {
 	u64 length;
 };
 
+/* 1: CXL Fixed Memory Window Structure */
+
+struct acpi_cedt_cfmws {
+	struct acpi_cedt_header header;
+	u32 reserved1;
+	u64 base_hpa;
+	u64 window_size;
+	u8 interleave_ways;
+	u8 interleave_arithmetic;
+	u16 reserved2;
+	u32 granularity;
+	u16 restrictions;
+	u16 qtg_id;
+	u32 interleave_targets[];
+};
+
+/* Values for Interleave Arithmetic field above */
+
+#define ACPI_CEDT_CFMWS_ARITHMETIC_MODULO	(0)
+
+/* Values for Restrictions field above */
+
+#define ACPI_CEDT_CFMWS_RESTRICT_TYPE2		(1)
+#define ACPI_CEDT_CFMWS_RESTRICT_TYPE3		(1<<1)
+#define ACPI_CEDT_CFMWS_RESTRICT_VOLATILE	(1<<2)
+#define ACPI_CEDT_CFMWS_RESTRICT_PMEM		(1<<3)
+#define ACPI_CEDT_CFMWS_RESTRICT_FIXED		(1<<4)
+
 /*******************************************************************************
  *
  * CPEP - Corrected Platform Error Polling table (ACPI 4.0)
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index 18cafe3ebddc..2069ac38a4e2 100644
--- a/include/acpi/actbl2.h
+++ b/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_BDAT           "BDAT"	/* BIOS Data ACPI Table */
 #define ACPI_SIG_IORT           "IORT"	/* IO Remapping Table */
 #define ACPI_SIG_IVRS           "IVRS"	/* I/O Virtualization Reporting Structure */
 #define ACPI_SIG_LPIT           "LPIT"	/* Low Power Idle Table */
@@ -39,11 +40,14 @@
 #define ACPI_SIG_PHAT           "PHAT"	/* Platform Health Assessment Table */
 #define ACPI_SIG_PMTT           "PMTT"	/* Platform Memory Topology Table */
 #define ACPI_SIG_PPTT           "PPTT"	/* Processor Properties Topology Table */
+#define ACPI_SIG_PRMT           "PRMT"	/* Platform Runtime Mechanism Table */
 #define ACPI_SIG_RASF           "RASF"	/* RAS Feature table */
+#define ACPI_SIG_RGRT           "RGRT"	/* Regulatory Graphics Resource Table */
 #define ACPI_SIG_SBST           "SBST"	/* Smart Battery Specification Table */
 #define ACPI_SIG_SDEI           "SDEI"	/* Software Delegated Exception Interface Table */
 #define ACPI_SIG_SDEV           "SDEV"	/* Secure Devices table */
 #define ACPI_SIG_NHLT           "NHLT"	/* Non-HDAudio Link Table */
+#define ACPI_SIG_SVKL           "SVKL"	/* Storage Volume Key Location Table */
 
 /*
  * All tables must be byte-packed to match the ACPI specification, since
@@ -65,6 +69,20 @@
 
 /*******************************************************************************
  *
+ * BDAT - BIOS Data ACPI Table
+ *
+ * Conforms to "BIOS Data ACPI Table", Interface Specification v4.0 Draft 5
+ * Nov 2020
+ *
+ ******************************************************************************/
+
+struct acpi_table_bdat {
+	struct acpi_table_header header;
+	struct acpi_generic_address gas;
+};
+
+/*******************************************************************************
+ *
  * IORT - IO Remapping Table
  *
  * Conforms to "IO Remapping Table System Software on ARM Platforms",
@@ -446,6 +464,12 @@ struct acpi_ivrs_device_hid {
 	u8 uid_length;
 };
 
+/* Values for uid_type above */
+
+#define ACPI_IVRS_UID_NOT_PRESENT   0
+#define ACPI_IVRS_UID_IS_INTEGER    1
+#define ACPI_IVRS_UID_IS_STRING     2
+
 /* 0x20, 0x21, 0x22: I/O Virtualization Memory Definition Block (IVMD) */
 
 struct acpi_ivrs_memory {
@@ -763,6 +787,20 @@ struct acpi_madt_multiproc_wakeup {
 	u64 base_address;
 };
 
+#define ACPI_MULTIPROC_WAKEUP_MB_OS_SIZE	2032
+#define ACPI_MULTIPROC_WAKEUP_MB_FIRMWARE_SIZE	2048
+
+struct acpi_madt_multiproc_wakeup_mailbox {
+	u16 command;
+	u16 reserved;		/* reserved - must be zero */
+	u32 apic_id;
+	u64 wakeup_vector;
+	u8 reserved_os[ACPI_MULTIPROC_WAKEUP_MB_OS_SIZE];	/* reserved for OS use */
+	u8 reserved_firmware[ACPI_MULTIPROC_WAKEUP_MB_FIRMWARE_SIZE];	/* reserved for firmware use */
+};
+
+#define ACPI_MP_WAKE_COMMAND_WAKEUP    1
+
 /*
  * Common flags fields for MADT subtables
  */
@@ -1675,6 +1713,48 @@ struct acpi_pptt_id {
 
 /*******************************************************************************
  *
+ * PRMT - Platform Runtime Mechanism Table
+ *        Version 1
+ *
+ ******************************************************************************/
+
+struct acpi_table_prmt {
+	struct acpi_table_header header;	/* Common ACPI table header */
+};
+
+struct acpi_table_prmt_header {
+	u8 platform_guid[16];
+	u32 module_info_offset;
+	u32 module_info_count;
+};
+
+struct acpi_prmt_module_header {
+	u16 revision;
+	u16 length;
+};
+
+struct acpi_prmt_module_info {
+	u16 revision;
+	u16 length;
+	u8 module_guid[16];
+	u16 major_rev;
+	u16 minor_rev;
+	u16 handler_info_count;
+	u32 handler_info_offset;
+	u64 mmio_list_pointer;
+};
+
+struct acpi_prmt_handler_info {
+	u16 revision;
+	u16 length;
+	u8 handler_guid[16];
+	u64 handler_address;
+	u64 static_data_buffer_address;
+	u64 acpi_param_buffer_address;
+};
+
+/*******************************************************************************
+ *
  * RASF - RAS Feature Table (ACPI 5.0)
  *        Version 1
  *
@@ -1771,6 +1851,32 @@ enum acpi_rasf_status {
 
 /*******************************************************************************
  *
+ * RGRT - Regulatory Graphics Resource Table
+ *        Version 1
+ *
+ * Conforms to "ACPI RGRT" available at:
+ * https://microsoft.github.io/mu/dyn/mu_plus/ms_core_pkg/acpi_RGRT/feature_acpi_rgrt/
+ *
+ ******************************************************************************/
+
+struct acpi_table_rgrt {
+	struct acpi_table_header header;	/* Common ACPI table header */
+	u16 version;
+	u8 image_type;
+	u8 reserved;
+	u8 image[0];
+};
+
+/* image_type values */
+
+enum acpi_rgrt_image_type {
+	ACPI_RGRT_TYPE_RESERVED0 = 0,
+	ACPI_RGRT_IMAGE_TYPE_PNG = 1,
+	ACPI_RGRT_TYPE_RESERVED = 2	/* 2 and greater are reserved */
+};
+
+/*******************************************************************************
+ *
  * SBST - Smart Battery Specification Table
  *        Version 1
  *
@@ -1899,6 +2005,37 @@ struct acpi_sdev_pcie_path {
 	u8 function;
 };
 
+/*******************************************************************************
+ *
+ * SVKL - Storage Volume Key Location Table (ACPI 6.4)
+ *        From: "Guest-Host-Communication Interface (GHCI) for Intel
+ *        Trust Domain Extensions (Intel TDX)".
+ *        Version 1
+ *
+ ******************************************************************************/
+
+struct acpi_table_svkl {
+	struct acpi_table_header header;	/* Common ACPI table header */
+	u32 count;
+};
+
+struct acpi_svkl_key {
+	u16 type;
+	u16 format;
+	u32 size;
+	u64 address;
+};
+
+enum acpi_svkl_type {
+	ACPI_SVKL_TYPE_MAIN_STORAGE = 0,
+	ACPI_SVKL_TYPE_RESERVED = 1	/* 1 and greater are reserved */
+};
+
+enum acpi_svkl_format {
+	ACPI_SVKL_FORMAT_RAW_BINARY = 0,
+	ACPI_SVKL_FORMAT_RESERVED = 1	/* 1 and greater are reserved */
+};
+
 /* Reset to default packing */
 
 #pragma pack()
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index c60745f657e9..98e0f207e115 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -132,6 +132,7 @@ enum acpi_address_range_id {
 union acpi_subtable_headers {
 	struct acpi_subtable_header common;
 	struct acpi_hmat_structure hmat;
+	struct acpi_prmt_module_header prmt;
 };
 
 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
@@ -550,6 +551,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 #define OSC_SB_OSLPI_SUPPORT			0x00000100
 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT		0x00001000
 #define OSC_SB_GENERIC_INITIATOR_SUPPORT	0x00002000
+#define OSC_SB_PRM_SUPPORT			0x00020000
 #define OSC_SB_NATIVE_USB4_SUPPORT		0x00040000
 
 extern bool osc_sb_apei_support_acked;
@@ -666,7 +668,6 @@ extern bool acpi_driver_match_device(struct device *dev,
 				     const struct device_driver *drv);
 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
 int acpi_device_modalias(struct device *, char *, int);
-void acpi_walk_dep_device_list(acpi_handle handle);
 
 struct platform_device *acpi_create_platform_device(struct acpi_device *,
 						    struct property_entry *);
diff --git a/include/linux/prmt.h b/include/linux/prmt.h
new file mode 100644
index 000000000000..24da8364b919
--- /dev/null
+++ b/include/linux/prmt.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifdef CONFIG_ACPI_PRMT
+void init_prmt(void);
+#else
+static inline void init_prmt(void) { }
+#endif