Merge tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the large set of char/misc and other driver subsystem changes
  for 6.2-rc1. Nothing earth-shattering in here at all, just a lot of
  new driver development and minor fixes.

  Highlights include:

   - fastrpc driver updates

   - iio new drivers and updates

   - habanalabs driver updates for new hardware and features

   - slimbus driver updates

   - speakup module parameters added to aid in boot time configuration

   - i2c probe_new conversions for lots of different drivers

   - other small driver fixes and additions

  One semi-interesting change in here is the increase of the number of
  misc dynamic minors available to 1048448 to handle new huge-cpu
  systems.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (521 commits)
  extcon: usbc-tusb320: Convert to i2c's .probe_new()
  extcon: rt8973: Convert to i2c's .probe_new()
  extcon: fsa9480: Convert to i2c's .probe_new()
  extcon: max77843: Replace irqchip mask_invert with unmask_base
  chardev: fix error handling in cdev_device_add()
  mcb: mcb-parse: fix error handing in chameleon_parse_gdd()
  drivers: mcb: fix resource leak in mcb_probe()
  coresight: etm4x: fix repeated words in comments
  coresight: cti: Fix null pointer error on CTI init before ETM
  coresight: trbe: remove cpuhp instance node before remove cpuhp state
  counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update
  misc: fastrpc: Add dma_mask to fastrpc_channel_ctx
  misc: fastrpc: Add mmap request assigning for static PD pool
  misc: fastrpc: Safekeep mmaps on interrupted invoke
  misc: fastrpc: Add support for audiopd
  misc: fastrpc: Rework fastrpc_req_munmap
  misc: fastrpc: Use fastrpc_map_put in fastrpc_map_create on fail
  misc: fastrpc: Add fastrpc_remote_heap_alloc
  misc: fastrpc: Add reserved mem support
  misc: fastrpc: Rename audio protection domain to root
  ...

12 files changed, 113 insertions, 38 deletions

diff --git a/include/linux/iio/buffer_impl.h b/include/linux/iio/buffer_impl.h
index e2ca8ea23e19..89c3fd7c29ca 100644
--- a/include/linux/iio/buffer_impl.h
+++ b/include/linux/iio/buffer_impl.h
@@ -123,7 +123,7 @@ struct iio_buffer {
 	struct attribute_group buffer_group;
 
 	/* @attrs: Standard attributes of the buffer. */
-	const struct attribute **attrs;
+	const struct iio_dev_attr **attrs;
 
 	/* @demux_bounce: Buffer for doing gather from incoming scan. */
 	void *demux_bounce;
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index db4a1b260348..f5f3ee57bc70 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -224,8 +224,6 @@ struct st_sensor_settings {
  * @mount_matrix: The mounting matrix of the sensor.
  * @sensor_settings: Pointer to the specific sensor settings in use.
  * @current_fullscale: Maximum range of measure by the sensor.
- * @vdd: Pointer to sensor's Vdd power supply
- * @vdd_io: Pointer to sensor's Vdd-IO power supply
  * @regmap: Pointer to specific sensor regmap configuration.
  * @enabled: Status of the sensor (false->off, true->on).
  * @odr: Output data rate of the sensor [Hz].
@@ -244,8 +242,6 @@ struct st_sensor_data {
 	struct iio_mount_matrix mount_matrix;
 	struct st_sensor_settings *sensor_settings;
 	struct st_sensor_fullscale_avl *current_fullscale;
-	struct regulator *vdd;
-	struct regulator *vdd_io;
 	struct regmap *regmap;
 
 	bool enabled;
diff --git a/include/linux/iio/gyro/itg3200.h b/include/linux/iio/gyro/itg3200.h
index a602fe7b84fa..74b6d1cadc86 100644
--- a/include/linux/iio/gyro/itg3200.h
+++ b/include/linux/iio/gyro/itg3200.h
@@ -102,6 +102,8 @@ struct itg3200 {
 	struct i2c_client	*i2c;
 	struct iio_trigger	*trig;
 	struct iio_mount_matrix orientation;
+	/* lock to protect against multiple access to the device */
+	struct mutex		lock;
 };
 
 enum ITG3200_SCAN_INDEX {
diff --git a/include/linux/iio/iio-opaque.h b/include/linux/iio/iio-opaque.h
index d1f8b30a7c8b..5aec3945555b 100644
--- a/include/linux/iio/iio-opaque.h
+++ b/include/linux/iio/iio-opaque.h
@@ -11,6 +11,7 @@
  *				checked by device drivers but should be considered
  *				read-only as this is a core internal bit
  * @driver_module:		used to make it harder to undercut users
+ * @mlock:			lock used to prevent simultaneous device state changes
  * @mlock_key:			lockdep class for iio_dev lock
  * @info_exist_lock:		lock to prevent use during removal
  * @trig_readonly:		mark the current trigger immutable
@@ -43,6 +44,7 @@ struct iio_dev_opaque {
 	int				currentmode;
 	int				id;
 	struct module			*driver_module;
+	struct mutex			mlock;
 	struct lock_class_key		mlock_key;
 	struct mutex			info_exist_lock;
 	bool				trig_readonly;
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index f0ec8a5e5a7a..8e0afaaa3f75 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -548,8 +548,6 @@ struct iio_buffer_setup_ops {
  *			and owner
  * @buffer:		[DRIVER] any buffer present
  * @scan_bytes:		[INTERN] num bytes captured to be fed to buffer demux
- * @mlock:		[INTERN] lock used to prevent simultaneous device state
- *			changes
  * @available_scan_masks: [DRIVER] optional array of allowed bitmasks
  * @masklength:		[INTERN] the length of the mask established from
  *			channels
@@ -574,7 +572,6 @@ struct iio_dev {
 
 	struct iio_buffer		*buffer;
 	int				scan_bytes;
-	struct mutex			mlock;
 
 	const unsigned long		*available_scan_masks;
 	unsigned			masklength;
@@ -629,6 +626,8 @@ int __devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev,
 int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp);
 int iio_device_claim_direct_mode(struct iio_dev *indio_dev);
 void iio_device_release_direct_mode(struct iio_dev *indio_dev);
+int iio_device_claim_buffer_mode(struct iio_dev *indio_dev);
+void iio_device_release_buffer_mode(struct iio_dev *indio_dev);
 
 extern struct bus_type iio_bus_type;
 
diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h
index 515ca09764fe..dc9ea299e088 100644
--- a/include/linux/iio/imu/adis.h
+++ b/include/linux/iio/imu/adis.h
@@ -402,28 +402,27 @@ static inline int adis_update_bits_base(struct adis *adis, unsigned int reg,
 	__adis_update_bits_base(adis, reg, mask, val, sizeof(val));	\
 })
 
-int adis_enable_irq(struct adis *adis, bool enable);
 int __adis_check_status(struct adis *adis);
 int __adis_initial_startup(struct adis *adis);
+int __adis_enable_irq(struct adis *adis, bool enable);
 
-static inline int adis_check_status(struct adis *adis)
+static inline int adis_enable_irq(struct adis *adis, bool enable)
 {
 	int ret;
 
 	mutex_lock(&adis->state_lock);
-	ret = __adis_check_status(adis);
+	ret = __adis_enable_irq(adis, enable);
 	mutex_unlock(&adis->state_lock);
 
 	return ret;
 }
 
-/* locked version of __adis_initial_startup() */
-static inline int adis_initial_startup(struct adis *adis)
+static inline int adis_check_status(struct adis *adis)
 {
 	int ret;
 
 	mutex_lock(&adis->state_lock);
-	ret = __adis_initial_startup(adis);
+	ret = __adis_check_status(adis);
 	mutex_unlock(&adis->state_lock);
 
 	return ret;
diff --git a/include/linux/iio/kfifo_buf.h b/include/linux/iio/kfifo_buf.h
index 8a83fb58232d..22874da0c8be 100644
--- a/include/linux/iio/kfifo_buf.h
+++ b/include/linux/iio/kfifo_buf.h
@@ -5,6 +5,7 @@
 struct iio_buffer;
 struct iio_buffer_setup_ops;
 struct iio_dev;
+struct iio_dev_attr;
 struct device;
 
 struct iio_buffer *iio_kfifo_allocate(void);
@@ -13,7 +14,7 @@ void iio_kfifo_free(struct iio_buffer *r);
 int devm_iio_kfifo_buffer_setup_ext(struct device *dev,
 				    struct iio_dev *indio_dev,
 				    const struct iio_buffer_setup_ops *setup_ops,
-				    const struct attribute **buffer_attrs);
+				    const struct iio_dev_attr **buffer_attrs);
 
 #define devm_iio_kfifo_buffer_setup(dev, indio_dev, setup_ops)	\
 	devm_iio_kfifo_buffer_setup_ext((dev), (indio_dev), (setup_ops), NULL)
diff --git a/include/linux/iio/sysfs.h b/include/linux/iio/sysfs.h
index e51fba66de4b..de5bb125815c 100644
--- a/include/linux/iio/sysfs.h
+++ b/include/linux/iio/sysfs.h
@@ -97,6 +97,17 @@ struct iio_const_attr {
 	= { .string = _string,						\
 	    .dev_attr = __ATTR(_name, S_IRUGO, iio_read_const_attr, NULL)}
 
+#define IIO_STATIC_CONST_DEVICE_ATTR(_name, _string)				\
+	static ssize_t iio_const_dev_attr_show_##_name(			\
+					struct device *dev,		\
+					struct device_attribute *attr,	\
+					char *buf)			\
+	{								\
+		return sysfs_emit(buf, "%s\n", _string);		\
+	}								\
+	static IIO_DEVICE_ATTR(_name, 0444,				\
+			       iio_const_dev_attr_show_##_name, NULL, 0)
+
 /* Generic attributes of onetype or another */
 
 /**
diff --git a/include/linux/iio/triggered_buffer.h b/include/linux/iio/triggered_buffer.h
index 7490b05fc5b2..29e1fe146879 100644
--- a/include/linux/iio/triggered_buffer.h
+++ b/include/linux/iio/triggered_buffer.h
@@ -5,8 +5,8 @@
 #include <linux/iio/buffer.h>
 #include <linux/interrupt.h>
 
-struct attribute;
 struct iio_dev;
+struct iio_dev_attr;
 struct iio_buffer_setup_ops;
 
 int iio_triggered_buffer_setup_ext(struct iio_dev *indio_dev,
@@ -14,7 +14,7 @@ int iio_triggered_buffer_setup_ext(struct iio_dev *indio_dev,
 	irqreturn_t (*thread)(int irq, void *p),
 	enum iio_buffer_direction direction,
 	const struct iio_buffer_setup_ops *setup_ops,
-	const struct attribute **buffer_attrs);
+	const struct iio_dev_attr **buffer_attrs);
 void iio_triggered_buffer_cleanup(struct iio_dev *indio_dev);
 
 #define iio_triggered_buffer_setup(indio_dev, h, thread, setup_ops)		\
@@ -28,7 +28,7 @@ int devm_iio_triggered_buffer_setup_ext(struct device *dev,
 					irqreturn_t (*thread)(int irq, void *p),
 					enum iio_buffer_direction direction,
 					const struct iio_buffer_setup_ops *ops,
-					const struct attribute **buffer_attrs);
+					const struct iio_dev_attr **buffer_attrs);
 
 #define devm_iio_triggered_buffer_setup(dev, indio_dev, h, thread, setup_ops)	\
 	devm_iio_triggered_buffer_setup_ext((dev), (indio_dev), (h), (thread),	\
diff --git a/include/uapi/linux/acrn.h b/include/uapi/linux/acrn.h
index ccf47ed92500..7b714c1902eb 100644
--- a/include/uapi/linux/acrn.h
+++ b/include/uapi/linux/acrn.h
@@ -12,7 +12,6 @@
 #define _UAPI_ACRN_H
 
 #include <linux/types.h>
-#include <linux/uuid.h>
 
 #define ACRN_IO_REQUEST_MAX		16
 
@@ -186,7 +185,7 @@ struct acrn_ioreq_notify {
  * @reserved0:		Reserved and must be 0
  * @vcpu_num:		Number of vCPU in the VM. Return from hypervisor.
  * @reserved1:		Reserved and must be 0
- * @uuid:		UUID of the VM. Pass to hypervisor directly.
+ * @uuid:		Empty space never to be used again (used to be UUID of the VM)
  * @vm_flag:		Flag of the VM creating. Pass to hypervisor directly.
  * @ioreq_buf:		Service VM GPA of I/O request buffer. Pass to
  *			hypervisor directly.
@@ -198,7 +197,7 @@ struct acrn_vm_creation {
 	__u16	reserved0;
 	__u16	vcpu_num;
 	__u16	reserved1;
-	guid_t	uuid;
+	__u8	uuid[16];
 	__u64	vm_flag;
 	__u64	ioreq_buf;
 	__u64	cpu_affinity;
diff --git a/include/uapi/misc/fastrpc.h b/include/uapi/misc/fastrpc.h
index 5e29f2cfa42d..f33d914d8f46 100644
--- a/include/uapi/misc/fastrpc.h
+++ b/include/uapi/misc/fastrpc.h
@@ -13,6 +13,7 @@
 #define FASTRPC_IOCTL_MMAP		_IOWR('R', 6, struct fastrpc_req_mmap)
 #define FASTRPC_IOCTL_MUNMAP		_IOWR('R', 7, struct fastrpc_req_munmap)
 #define FASTRPC_IOCTL_INIT_ATTACH_SNS	_IO('R', 8)
+#define FASTRPC_IOCTL_INIT_CREATE_STATIC _IOWR('R', 9, struct fastrpc_init_create_static)
 #define FASTRPC_IOCTL_MEM_MAP		_IOWR('R', 10, struct fastrpc_mem_map)
 #define FASTRPC_IOCTL_MEM_UNMAP		_IOWR('R', 11, struct fastrpc_mem_unmap)
 #define FASTRPC_IOCTL_GET_DSP_INFO	_IOWR('R', 13, struct fastrpc_ioctl_capability)
@@ -87,6 +88,12 @@ struct fastrpc_init_create {
 	__u64 file;	/* pointer to elf file */
 };
 
+struct fastrpc_init_create_static {
+	__u32 namelen;	/* length of pd process name */
+	__u32 memlen;
+	__u64 name;	/* pd process name */
+};
+
 struct fastrpc_alloc_dma_buf {
 	__s32 fd;	/* fd */
 	__u32 flags;	/* flags to map with */
diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h
index e00ebe05097d..3b995e841eb8 100644
--- a/include/uapi/misc/habanalabs.h
+++ b/include/uapi/misc/habanalabs.h
@@ -597,6 +597,10 @@ enum gaudi2_engine_id {
 	GAUDI2_ENGINE_ID_NIC10_1,
 	GAUDI2_ENGINE_ID_NIC11_0,
 	GAUDI2_ENGINE_ID_NIC11_1,
+	GAUDI2_ENGINE_ID_PCIE,
+	GAUDI2_ENGINE_ID_PSOC,
+	GAUDI2_ENGINE_ID_ARC_FARM,
+	GAUDI2_ENGINE_ID_KDMA,
 	GAUDI2_ENGINE_ID_SIZE
 };
 
@@ -717,6 +721,8 @@ enum hl_server_type {
  * HL_NOTIFIER_EVENT_DEVICE_UNAVAILABLE	- Indicates device is unavailable
  * HL_NOTIFIER_EVENT_USER_ENGINE_ERR	- Indicates device engine in error state
  * HL_NOTIFIER_EVENT_GENERAL_HW_ERR     - Indicates device HW error
+ * HL_NOTIFIER_EVENT_RAZWI              - Indicates razwi happened
+ * HL_NOTIFIER_EVENT_PAGE_FAULT         - Indicates page fault happened
  */
 #define HL_NOTIFIER_EVENT_TPC_ASSERT		(1ULL << 0)
 #define HL_NOTIFIER_EVENT_UNDEFINED_OPCODE	(1ULL << 1)
@@ -725,6 +731,8 @@ enum hl_server_type {
 #define HL_NOTIFIER_EVENT_DEVICE_UNAVAILABLE	(1ULL << 4)
 #define HL_NOTIFIER_EVENT_USER_ENGINE_ERR	(1ULL << 5)
 #define HL_NOTIFIER_EVENT_GENERAL_HW_ERR	(1ULL << 6)
+#define HL_NOTIFIER_EVENT_RAZWI			(1ULL << 7)
+#define HL_NOTIFIER_EVENT_PAGE_FAULT		(1ULL << 8)
 
 /* Opcode for management ioctl
  *
@@ -778,6 +786,9 @@ enum hl_server_type {
  * HL_INFO_UNREGISTER_EVENTFD - Unregister eventfd
  * HL_INFO_GET_EVENTS         - Retrieve the last occurred events
  * HL_INFO_UNDEFINED_OPCODE_EVENT - Retrieve last undefined opcode error information.
+ * HL_INFO_ENGINE_STATUS - Retrieve the status of all the h/w engines in the asic.
+ * HL_INFO_PAGE_FAULT_EVENT - Retrieve parameters of captured page fault.
+ * HL_INFO_USER_MAPPINGS - Retrieve user mappings, captured after page fault event.
  */
 #define HL_INFO_HW_IP_INFO			0
 #define HL_INFO_HW_EVENTS			1
@@ -809,6 +820,8 @@ enum hl_server_type {
 #define HL_INFO_GET_EVENTS			30
 #define HL_INFO_UNDEFINED_OPCODE_EVENT		31
 #define HL_INFO_ENGINE_STATUS			32
+#define HL_INFO_PAGE_FAULT_EVENT		33
+#define HL_INFO_USER_MAPPINGS			34
 
 #define HL_INFO_VERSION_MAX_LEN			128
 #define HL_INFO_CARD_NAME_MAX_LEN		16
@@ -859,6 +872,7 @@ enum hl_server_type {
  * @number_of_user_interrupts: The number of interrupts that are available to the userspace
  *                             application to use. Relevant for Gaudi2 and later.
  * @device_mem_alloc_default_page_size: default page size used in device memory allocation.
+ * @revision_id: PCI revision ID of the ASIC.
  */
 struct hl_info_hw_ip_info {
 	__u64 sram_base_address;
@@ -889,6 +903,12 @@ struct hl_info_hw_ip_info {
 	__u16 pad2;
 	__u64 reserved4;
 	__u64 device_mem_alloc_default_page_size;
+	__u64 reserved5;
+	__u64 reserved6;
+	__u32 reserved7;
+	__u8 reserved8;
+	__u8 revision_id;
+	__u8 pad[2];
 };
 
 struct hl_info_dram_usage {
@@ -896,7 +916,7 @@ struct hl_info_dram_usage {
 	__u64 ctx_dram_mem;
 };
 
-#define HL_BUSY_ENGINES_MASK_EXT_SIZE	2
+#define HL_BUSY_ENGINES_MASK_EXT_SIZE	4
 
 struct hl_info_hw_idle {
 	__u32 is_idle;
@@ -1071,31 +1091,44 @@ struct hl_info_cs_timeout_event {
 	__u64 seq;
 };
 
-#define HL_RAZWI_PAGE_FAULT 0
-#define HL_RAZWI_MMU_ACCESS_ERROR 1
+#define HL_RAZWI_NA_ENG_ID U16_MAX
+#define HL_RAZWI_MAX_NUM_OF_ENGINES_PER_RTR 128
+#define HL_RAZWI_READ		BIT(0)
+#define HL_RAZWI_WRITE		BIT(1)
+#define HL_RAZWI_LBW		BIT(2)
+#define HL_RAZWI_HBW		BIT(3)
+#define HL_RAZWI_RR		BIT(4)
+#define HL_RAZWI_ADDR_DEC	BIT(5)
 
 /**
  * struct hl_info_razwi_event - razwi information.
  * @timestamp: timestamp of razwi.
  * @addr: address which accessing it caused razwi.
- * @engine_id_1: engine id of the razwi initiator, if it was initiated by engine that does not
- *               have engine id it will be set to U16_MAX.
- * @engine_id_2: second engine id of razwi initiator. Might happen that razwi have 2 possible
- *               engines which one them caused the razwi. In that case, it will contain the
- *               second possible engine id, otherwise it will be set to U16_MAX.
- * @no_engine_id: if razwi initiator does not have engine id, this field will be set to 1,
- *                otherwise 0.
- * @error_type: cause of razwi, page fault or access error, otherwise it will be set to U8_MAX.
- * @pad: padding to 64 bit.
+ * @engine_id: engine id of the razwi initiator, if it was initiated by engine that does not
+ *             have engine id it will be set to HL_RAZWI_NA_ENG_ID. If there are several possible
+ *             engines which caused the razwi, it will hold all of them.
+ * @num_of_possible_engines: contains number of possible engine ids. In some asics, razwi indication
+ *                           might be common for several engines and there is no way to get the
+ *                           exact engine. In this way, engine_id array will be filled with all
+ *                           possible engines caused this razwi. Also, there might be possibility
+ *                           in gaudi, where we don't indication on specific engine, in that case
+ *                           the value of this parameter will be zero.
+ * @flags: bitmask for additional data: HL_RAZWI_READ - razwi caused by read operation
+ *                                      HL_RAZWI_WRITE - razwi caused by write operation
+ *                                      HL_RAZWI_LBW - razwi caused by lbw fabric transaction
+ *                                      HL_RAZWI_HBW - razwi caused by hbw fabric transaction
+ *                                      HL_RAZWI_RR - razwi caused by range register
+ *                                      HL_RAZWI_ADDR_DEC - razwi caused by address decode error
+ *         Note: this data is not supported by all asics, in that case the relevant bits will not
+ *               be set.
  */
 struct hl_info_razwi_event {
 	__s64 timestamp;
 	__u64 addr;
-	__u16 engine_id_1;
-	__u16 engine_id_2;
-	__u8 no_engine_id;
-	__u8 error_type;
-	__u8 pad[2];
+	__u16 engine_id[HL_RAZWI_MAX_NUM_OF_ENGINES_PER_RTR];
+	__u16 num_of_possible_engines;
+	__u8 flags;
+	__u8 pad[5];
 };
 
 #define MAX_QMAN_STREAMS_INFO		4
@@ -1174,6 +1207,29 @@ struct hl_info_sec_attest {
 	__u8 pad0[2];
 };
 
+/**
+ * struct hl_page_fault_info - page fault information.
+ * @timestamp: timestamp of page fault.
+ * @addr: address which accessing it caused page fault.
+ * @engine_id: engine id which caused the page fault, supported only in gaudi3.
+ */
+struct hl_page_fault_info {
+	__s64 timestamp;
+	__u64 addr;
+	__u16 engine_id;
+	__u8 pad[6];
+};
+
+/**
+ * struct hl_user_mapping - user mapping information.
+ * @dev_va: device virtual address.
+ * @size: virtual address mapping size.
+ */
+struct hl_user_mapping {
+	__u64 dev_va;
+	__u64 size;
+};
+
 enum gaudi_dcores {
 	HL_GAUDI_WS_DCORE,
 	HL_GAUDI_WN_DCORE,
@@ -1200,6 +1256,8 @@ enum gaudi_dcores {
  *                           needed, hence updating this variable so user will know the exact amount
  *                           of bytes copied by the kernel to the buffer.
  * @sec_attest_nonce: Nonce number used for attestation report.
+ * @array_size: Number of array members copied to user buffer.
+ *              Relevant for HL_INFO_USER_MAPPINGS info ioctl.
  * @pad: Padding to 64 bit.
  */
 struct hl_info_args {
@@ -1215,6 +1273,7 @@ struct hl_info_args {
 		__u32 eventfd;
 		__u32 user_buffer_actual_size;
 		__u32 sec_attest_nonce;
+		__u32 array_size;
 	};
 
 	__u32 pad;