[linux-block.git] / include / linux / host1x.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (c) 2009-2013, NVIDIA Corporation. All rights reserved.
 */

#ifndef __LINUX_HOST1X_H
#define __LINUX_HOST1X_H

#include <linux/device.h>
#include <linux/dma-direction.h>
#include <linux/spinlock.h>
#include <linux/types.h>

enum host1x_class {
	HOST1X_CLASS_HOST1X = 0x1,
	HOST1X_CLASS_GR2D = 0x51,
	HOST1X_CLASS_GR2D_SB = 0x52,
	HOST1X_CLASS_VIC = 0x5D,
	HOST1X_CLASS_GR3D = 0x60,
	HOST1X_CLASS_NVDEC = 0xF0,
	HOST1X_CLASS_NVDEC1 = 0xF5,
};

struct host1x;
struct host1x_client;
struct iommu_group;

u64 host1x_get_dma_mask(struct host1x *host1x);

/**
 * struct host1x_bo_cache - host1x buffer object cache
 * @mappings: list of mappings
 * @lock: synchronizes accesses to the list of mappings
 *
 * Note that entries are not periodically evicted from this cache and instead need to be
 * explicitly released. This is used primarily for DRM/KMS where the cache's reference is
 * released when the last reference to a buffer object represented by a mapping in this
 * cache is dropped.
 */
struct host1x_bo_cache {
	struct list_head mappings;
	struct mutex lock;
};

static inline void host1x_bo_cache_init(struct host1x_bo_cache *cache)
{
	INIT_LIST_HEAD(&cache->mappings);
	mutex_init(&cache->lock);
}

static inline void host1x_bo_cache_destroy(struct host1x_bo_cache *cache)
{
	/* XXX warn if not empty? */
	mutex_destroy(&cache->lock);
}

/**
 * struct host1x_client_ops - host1x client operations
 * @early_init: host1x client early initialization code
 * @init: host1x client initialization code
 * @exit: host1x client tear down code
 * @late_exit: host1x client late tear down code
 * @suspend: host1x client suspend code
 * @resume: host1x client resume code
 */
struct host1x_client_ops {
	int (*early_init)(struct host1x_client *client);
	int (*init)(struct host1x_client *client);
	int (*exit)(struct host1x_client *client);
	int (*late_exit)(struct host1x_client *client);
	int (*suspend)(struct host1x_client *client);
	int (*resume)(struct host1x_client *client);
};

/**
 * struct host1x_client - host1x client structure
 * @list: list node for the host1x client
 * @host: pointer to struct device representing the host1x controller
 * @dev: pointer to struct device backing this host1x client
 * @group: IOMMU group that this client is a member of
 * @ops: host1x client operations
 * @class: host1x class represented by this client
 * @channel: host1x channel associated with this client
 * @syncpts: array of syncpoints requested for this client
 * @num_syncpts: number of syncpoints requested for this client
 * @parent: pointer to parent structure
 * @usecount: reference count for this structure
 * @lock: mutex for mutually exclusive concurrency
 * @cache: host1x buffer object cache
 */
struct host1x_client {
	struct list_head list;
	struct device *host;
	struct device *dev;
	struct iommu_group *group;

	const struct host1x_client_ops *ops;

	enum host1x_class class;
	struct host1x_channel *channel;

	struct host1x_syncpt **syncpts;
	unsigned int num_syncpts;

	struct host1x_client *parent;
	unsigned int usecount;
	struct mutex lock;

	struct host1x_bo_cache cache;
};

/*
 * host1x buffer objects
 */

struct host1x_bo;
struct sg_table;

struct host1x_bo_mapping {
	struct kref ref;
	struct dma_buf_attachment *attach;
	enum dma_data_direction direction;
	struct list_head list;
	struct host1x_bo *bo;
	struct sg_table *sgt;
	unsigned int chunks;
	struct device *dev;
	dma_addr_t phys;
	size_t size;

	struct host1x_bo_cache *cache;
	struct list_head entry;
};

static inline struct host1x_bo_mapping *to_host1x_bo_mapping(struct kref *ref)
{
	return container_of(ref, struct host1x_bo_mapping, ref);
}

struct host1x_bo_ops {
	struct host1x_bo *(*get)(struct host1x_bo *bo);
	void (*put)(struct host1x_bo *bo);
	struct host1x_bo_mapping *(*pin)(struct device *dev, struct host1x_bo *bo,
					 enum dma_data_direction dir);
	void (*unpin)(struct host1x_bo_mapping *map);
	void *(*mmap)(struct host1x_bo *bo);
	void (*munmap)(struct host1x_bo *bo, void *addr);
};

struct host1x_bo {
	const struct host1x_bo_ops *ops;
	struct list_head mappings;
	spinlock_t lock;
};

static inline void host1x_bo_init(struct host1x_bo *bo,
				  const struct host1x_bo_ops *ops)
{
	INIT_LIST_HEAD(&bo->mappings);
	spin_lock_init(&bo->lock);
	bo->ops = ops;
}

static inline struct host1x_bo *host1x_bo_get(struct host1x_bo *bo)
{
	return bo->ops->get(bo);
}

static inline void host1x_bo_put(struct host1x_bo *bo)
{
	bo->ops->put(bo);
}

struct host1x_bo_mapping *host1x_bo_pin(struct device *dev, struct host1x_bo *bo,
					enum dma_data_direction dir,
					struct host1x_bo_cache *cache);
void host1x_bo_unpin(struct host1x_bo_mapping *map);

static inline void *host1x_bo_mmap(struct host1x_bo *bo)
{
	return bo->ops->mmap(bo);
}

static inline void host1x_bo_munmap(struct host1x_bo *bo, void *addr)
{
	bo->ops->munmap(bo, addr);
}

/*
 * host1x syncpoints
 */

#define HOST1X_SYNCPT_CLIENT_MANAGED	(1 << 0)
#define HOST1X_SYNCPT_HAS_BASE		(1 << 1)

struct host1x_syncpt_base;
struct host1x_syncpt;
struct host1x;

struct host1x_syncpt *host1x_syncpt_get_by_id(struct host1x *host, u32 id);
struct host1x_syncpt *host1x_syncpt_get_by_id_noref(struct host1x *host, u32 id);
struct host1x_syncpt *host1x_syncpt_get(struct host1x_syncpt *sp);
u32 host1x_syncpt_id(struct host1x_syncpt *sp);
u32 host1x_syncpt_read_min(struct host1x_syncpt *sp);
u32 host1x_syncpt_read_max(struct host1x_syncpt *sp);
u32 host1x_syncpt_read(struct host1x_syncpt *sp);
int host1x_syncpt_incr(struct host1x_syncpt *sp);
u32 host1x_syncpt_incr_max(struct host1x_syncpt *sp, u32 incrs);
int host1x_syncpt_wait(struct host1x_syncpt *sp, u32 thresh, long timeout,
		       u32 *value);
struct host1x_syncpt *host1x_syncpt_request(struct host1x_client *client,
					    unsigned long flags);
void host1x_syncpt_put(struct host1x_syncpt *sp);
struct host1x_syncpt *host1x_syncpt_alloc(struct host1x *host,
					  unsigned long flags,
					  const char *name);

struct host1x_syncpt_base *host1x_syncpt_get_base(struct host1x_syncpt *sp);
u32 host1x_syncpt_base_id(struct host1x_syncpt_base *base);

void host1x_syncpt_release_vblank_reservation(struct host1x_client *client,
					      u32 syncpt_id);

struct dma_fence *host1x_fence_create(struct host1x_syncpt *sp, u32 threshold);

/*
 * host1x channel
 */

struct host1x_channel;
struct host1x_job;

struct host1x_channel *host1x_channel_request(struct host1x_client *client);
struct host1x_channel *host1x_channel_get(struct host1x_channel *channel);
void host1x_channel_stop(struct host1x_channel *channel);
void host1x_channel_put(struct host1x_channel *channel);
int host1x_job_submit(struct host1x_job *job);

/*
 * host1x job
 */

#define HOST1X_RELOC_READ	(1 << 0)
#define HOST1X_RELOC_WRITE	(1 << 1)

struct host1x_reloc {
	struct {
		struct host1x_bo *bo;
		unsigned long offset;
	} cmdbuf;
	struct {
		struct host1x_bo *bo;
		unsigned long offset;
	} target;
	unsigned long shift;
	unsigned long flags;
};

struct host1x_job {
	/* When refcount goes to zero, job can be freed */
	struct kref ref;

	/* List entry */
	struct list_head list;

	/* Channel where job is submitted to */
	struct host1x_channel *channel;

	/* client where the job originated */
	struct host1x_client *client;

	/* Gathers and their memory */
	struct host1x_job_cmd *cmds;
	unsigned int num_cmds;

	/* Array of handles to be pinned & unpinned */
	struct host1x_reloc *relocs;
	unsigned int num_relocs;
	struct host1x_job_unpin_data *unpins;
	unsigned int num_unpins;

	dma_addr_t *addr_phys;
	dma_addr_t *gather_addr_phys;
	dma_addr_t *reloc_addr_phys;

	/* Sync point id, number of increments and end related to the submit */
	struct host1x_syncpt *syncpt;
	u32 syncpt_incrs;
	u32 syncpt_end;

	/* Completion waiter ref */
	void *waiter;

	/* Maximum time to wait for this job */
	unsigned int timeout;

	/* Job has timed out and should be released */
	bool cancelled;

	/* Index and number of slots used in the push buffer */
	unsigned int first_get;
	unsigned int num_slots;

	/* Copy of gathers */
	size_t gather_copy_size;
	dma_addr_t gather_copy;
	u8 *gather_copy_mapped;

	/* Check if register is marked as an address reg */
	int (*is_addr_reg)(struct device *dev, u32 class, u32 reg);

	/* Check if class belongs to the unit */
	int (*is_valid_class)(u32 class);

	/* Request a SETCLASS to this class */
	u32 class;

	/* Add a channel wait for previous ops to complete */
	bool serialize;

	/* Fast-forward syncpoint increments on job timeout */
	bool syncpt_recovery;

	/* Callback called when job is freed */
	void (*release)(struct host1x_job *job);
	void *user_data;

	/* Whether host1x-side firewall should be ran for this job or not */
	bool enable_firewall;

	/* Options for configuring engine data stream ID */
	/* Context device to use for job */
	struct host1x_memory_context *memory_context;
	/* Stream ID to use if context isolation is disabled (!memory_context) */
	u32 engine_fallback_streamid;
	/* Engine offset to program stream ID to */
	u32 engine_streamid_offset;
};

struct host1x_job *host1x_job_alloc(struct host1x_channel *ch,
				    u32 num_cmdbufs, u32 num_relocs,
				    bool skip_firewall);
void host1x_job_add_gather(struct host1x_job *job, struct host1x_bo *bo,
			   unsigned int words, unsigned int offset);
void host1x_job_add_wait(struct host1x_job *job, u32 id, u32 thresh,
			 bool relative, u32 next_class);
struct host1x_job *host1x_job_get(struct host1x_job *job);
void host1x_job_put(struct host1x_job *job);
int host1x_job_pin(struct host1x_job *job, struct device *dev);
void host1x_job_unpin(struct host1x_job *job);

/*
 * subdevice probe infrastructure
 */

struct host1x_device;

/**
 * struct host1x_driver - host1x logical device driver
 * @driver: core driver
 * @subdevs: table of OF device IDs matching subdevices for this driver
 * @list: list node for the driver
 * @probe: called when the host1x logical device is probed
 * @remove: called when the host1x logical device is removed
 * @shutdown: called when the host1x logical device is shut down
 */
struct host1x_driver {
	struct device_driver driver;

	const struct of_device_id *subdevs;
	struct list_head list;

	int (*probe)(struct host1x_device *device);
	int (*remove)(struct host1x_device *device);
	void (*shutdown)(struct host1x_device *device);
};

static inline struct host1x_driver *
to_host1x_driver(struct device_driver *driver)
{
	return container_of(driver, struct host1x_driver, driver);
}

int host1x_driver_register_full(struct host1x_driver *driver,
				struct module *owner);
void host1x_driver_unregister(struct host1x_driver *driver);

#define host1x_driver_register(driver) \
	host1x_driver_register_full(driver, THIS_MODULE)

struct host1x_device {
	struct host1x_driver *driver;
	struct list_head list;
	struct device dev;

	struct mutex subdevs_lock;
	struct list_head subdevs;
	struct list_head active;

	struct mutex clients_lock;
	struct list_head clients;

	bool registered;

	struct device_dma_parameters dma_parms;
};

static inline struct host1x_device *to_host1x_device(struct device *dev)
{
	return container_of(dev, struct host1x_device, dev);
}

int host1x_device_init(struct host1x_device *device);
int host1x_device_exit(struct host1x_device *device);

void __host1x_client_init(struct host1x_client *client, struct lock_class_key *key);
void host1x_client_exit(struct host1x_client *client);

#define host1x_client_init(client)			\
	({						\
		static struct lock_class_key __key;	\
		__host1x_client_init(client, &__key);	\
	})

int __host1x_client_register(struct host1x_client *client);

/*
 * Note that this wrapper calls __host1x_client_init() for compatibility
 * with existing callers. Callers that want to separately initialize and
 * register a host1x client must first initialize using either of the
 * __host1x_client_init() or host1x_client_init() functions and then use
 * the low-level __host1x_client_register() function to avoid the client
 * getting reinitialized.
 */
#define host1x_client_register(client)			\
	({						\
		static struct lock_class_key __key;	\
		__host1x_client_init(client, &__key);	\
		__host1x_client_register(client);	\
	})

int host1x_client_unregister(struct host1x_client *client);

int host1x_client_suspend(struct host1x_client *client);
int host1x_client_resume(struct host1x_client *client);

struct tegra_mipi_device;

struct tegra_mipi_device *tegra_mipi_request(struct device *device,
					     struct device_node *np);
void tegra_mipi_free(struct tegra_mipi_device *device);
int tegra_mipi_enable(struct tegra_mipi_device *device);
int tegra_mipi_disable(struct tegra_mipi_device *device);
int tegra_mipi_start_calibration(struct tegra_mipi_device *device);
int tegra_mipi_finish_calibration(struct tegra_mipi_device *device);

/* host1x memory contexts */

struct host1x_memory_context {
	struct host1x *host;

	refcount_t ref;
	struct pid *owner;

	struct device dev;
	u64 dma_mask;
	u32 stream_id;
};

#ifdef CONFIG_IOMMU_API
struct host1x_memory_context *host1x_memory_context_alloc(struct host1x *host1x,
							  struct pid *pid);
void host1x_memory_context_get(struct host1x_memory_context *cd);
void host1x_memory_context_put(struct host1x_memory_context *cd);
#else
static inline struct host1x_memory_context *host1x_memory_context_alloc(struct host1x *host1x,
									struct pid *pid)
{
	return NULL;
}

static inline void host1x_memory_context_get(struct host1x_memory_context *cd)
{
}

static inline void host1x_memory_context_put(struct host1x_memory_context *cd)
{
}
#endif

#endif
Commit	Line	Data
16216333	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
6579324a	2	/*
6579324a	3	* Copyright (c) 2009-2013, NVIDIA Corporation. All rights reserved.
6579324a TB	4	*/
	5
	6	#ifndef __LINUX_HOST1X_H
	7	#define __LINUX_HOST1X_H
	8
776dc384	9	#include <linux/device.h>
c6aeaf56	10	#include <linux/dma-direction.h>
1f39b1df	11	#include <linux/spinlock.h>
35d747a8 TR	12	#include <linux/types.h>
35d747a8 TR	13
6579324a	14	enum host1x_class {
e1e90644 TR	15	HOST1X_CLASS_HOST1X = 0x1,
	16	HOST1X_CLASS_GR2D = 0x51,
	17	HOST1X_CLASS_GR2D_SB = 0x52,
0ae797a8	18	HOST1X_CLASS_VIC = 0x5D,
5f60ed0d	19	HOST1X_CLASS_GR3D = 0x60,
46f226c9 MP	20	HOST1X_CLASS_NVDEC = 0xF0,
46f226c9 MP	21	HOST1X_CLASS_NVDEC1 = 0xF5,
6579324a TB	22	};
6579324a TB	23
501be6c1	24	struct host1x;
53fa7f72	25	struct host1x_client;
aacdf198	26	struct iommu_group;
53fa7f72	27
501be6c1 TR	28	u64 host1x_get_dma_mask(struct host1x *host1x);
501be6c1 TR	29
1f39b1df TR	30	/**
	31	* struct host1x_bo_cache - host1x buffer object cache
	32	* @mappings: list of mappings
	33	* @lock: synchronizes accesses to the list of mappings
3e9c4584 TR	34	*
	35	* Note that entries are not periodically evicted from this cache and instead need to be
	36	* explicitly released. This is used primarily for DRM/KMS where the cache's reference is
	37	* released when the last reference to a buffer object represented by a mapping in this
	38	* cache is dropped.
1f39b1df TR	39	*/
	40	struct host1x_bo_cache {
	41	struct list_head mappings;
	42	struct mutex lock;
	43	};
	44
	45	static inline void host1x_bo_cache_init(struct host1x_bo_cache *cache)
	46	{
	47	INIT_LIST_HEAD(&cache->mappings);
	48	mutex_init(&cache->lock);
	49	}
	50
	51	static inline void host1x_bo_cache_destroy(struct host1x_bo_cache *cache)
	52	{
	53	/* XXX warn if not empty? */
	54	mutex_destroy(&cache->lock);
	55	}
	56
466749f1 TR	57	/**
466749f1 TR	58	* struct host1x_client_ops - host1x client operations
933deb8c	59	* @early_init: host1x client early initialization code
466749f1 TR	60	* @init: host1x client initialization code
466749f1 TR	61	* @exit: host1x client tear down code
933deb8c	62	* @late_exit: host1x client late tear down code
fd67e9c6 TR	63	* @suspend: host1x client suspend code
fd67e9c6 TR	64	* @resume: host1x client resume code
466749f1	65	*/
53fa7f72	66	struct host1x_client_ops {
933deb8c	67	int (early_init)(struct host1x_client client);
53fa7f72 TR	68	int (init)(struct host1x_client client);
53fa7f72 TR	69	int (exit)(struct host1x_client client);
933deb8c	70	int (late_exit)(struct host1x_client client);
fd67e9c6 TR	71	int (suspend)(struct host1x_client client);
fd67e9c6 TR	72	int (resume)(struct host1x_client client);
53fa7f72 TR	73	};
53fa7f72 TR	74
466749f1 TR	75	/**
	76	* struct host1x_client - host1x client structure
	77	* @list: list node for the host1x client
608f43ad	78	* @host: pointer to struct device representing the host1x controller
466749f1	79	* @dev: pointer to struct device backing this host1x client
aacdf198	80	* @group: IOMMU group that this client is a member of
466749f1 TR	81	* @ops: host1x client operations
	82	* @class: host1x class represented by this client
	83	* @channel: host1x channel associated with this client
	84	* @syncpts: array of syncpoints requested for this client
	85	* @num_syncpts: number of syncpoints requested for this client
2fd2bc7f CL	86	* @parent: pointer to parent structure
	87	* @usecount: reference count for this structure
	88	* @lock: mutex for mutually exclusive concurrency
fe696ccb	89	* @cache: host1x buffer object cache
466749f1	90	*/
53fa7f72 TR	91	struct host1x_client {
53fa7f72 TR	92	struct list_head list;
608f43ad	93	struct device *host;
53fa7f72	94	struct device *dev;
aacdf198	95	struct iommu_group *group;
53fa7f72 TR	96
	97	const struct host1x_client_ops *ops;
	98
	99	enum host1x_class class;
	100	struct host1x_channel *channel;
	101
	102	struct host1x_syncpt **syncpts;
	103	unsigned int num_syncpts;
fd67e9c6 TR	104
	105	struct host1x_client *parent;
	106	unsigned int usecount;
	107	struct mutex lock;
1f39b1df TR	108
1f39b1df TR	109	struct host1x_bo_cache cache;
53fa7f72 TR	110	};
53fa7f72 TR	111
35d747a8 TR	112	/*
	113	* host1x buffer objects
	114	*/
	115
	116	struct host1x_bo;
	117	struct sg_table;
	118
c6aeaf56	119	struct host1x_bo_mapping {
1f39b1df	120	struct kref ref;
c6aeaf56 TR	121	struct dma_buf_attachment *attach;
c6aeaf56 TR	122	enum dma_data_direction direction;
1f39b1df	123	struct list_head list;
c6aeaf56 TR	124	struct host1x_bo *bo;
	125	struct sg_table *sgt;
	126	unsigned int chunks;
	127	struct device *dev;
	128	dma_addr_t phys;
	129	size_t size;
1f39b1df TR	130
	131	struct host1x_bo_cache *cache;
	132	struct list_head entry;
c6aeaf56 TR	133	};
c6aeaf56 TR	134
1f39b1df TR	135	static inline struct host1x_bo_mapping to_host1x_bo_mapping(struct kref ref)
	136	{
	137	return container_of(ref, struct host1x_bo_mapping, ref);
	138	}
	139
35d747a8 TR	140	struct host1x_bo_ops {
	141	struct host1x_bo (get)(struct host1x_bo *bo);
	142	void (put)(struct host1x_bo bo);
c6aeaf56 TR	143	struct host1x_bo_mapping (pin)(struct device dev, struct host1x_bo bo,
	144	enum dma_data_direction dir);
	145	void (unpin)(struct host1x_bo_mapping map);
35d747a8 TR	146	void (mmap)(struct host1x_bo *bo);
35d747a8 TR	147	void (munmap)(struct host1x_bo bo, void *addr);
35d747a8 TR	148	};
	149
	150	struct host1x_bo {
	151	const struct host1x_bo_ops *ops;
1f39b1df TR	152	struct list_head mappings;
1f39b1df TR	153	spinlock_t lock;
35d747a8 TR	154	};
	155
	156	static inline void host1x_bo_init(struct host1x_bo *bo,
	157	const struct host1x_bo_ops *ops)
	158	{
1f39b1df TR	159	INIT_LIST_HEAD(&bo->mappings);
1f39b1df TR	160	spin_lock_init(&bo->lock);
35d747a8 TR	161	bo->ops = ops;
	162	}
	163
	164	static inline struct host1x_bo host1x_bo_get(struct host1x_bo bo)
	165	{
	166	return bo->ops->get(bo);
	167	}
	168
	169	static inline void host1x_bo_put(struct host1x_bo *bo)
	170	{
	171	bo->ops->put(bo);
	172	}
	173
1f39b1df TR	174	struct host1x_bo_mapping host1x_bo_pin(struct device dev, struct host1x_bo *bo,
	175	enum dma_data_direction dir,
	176	struct host1x_bo_cache *cache);
	177	void host1x_bo_unpin(struct host1x_bo_mapping *map);
35d747a8 TR	178
	179	static inline void host1x_bo_mmap(struct host1x_bo bo)
	180	{
	181	return bo->ops->mmap(bo);
	182	}
	183
	184	static inline void host1x_bo_munmap(struct host1x_bo bo, void addr)
	185	{
	186	bo->ops->munmap(bo, addr);
	187	}
	188
35d747a8 TR	189	/*
	190	* host1x syncpoints
	191	*/
	192
8736fe81	193	#define HOST1X_SYNCPT_CLIENT_MANAGED (1 << 0)
f5a954fe	194	#define HOST1X_SYNCPT_HAS_BASE (1 << 1)
8736fe81	195
f5a954fe	196	struct host1x_syncpt_base;
35d747a8 TR	197	struct host1x_syncpt;
	198	struct host1x;
	199
2aed4f5a MP	200	struct host1x_syncpt host1x_syncpt_get_by_id(struct host1x host, u32 id);
	201	struct host1x_syncpt host1x_syncpt_get_by_id_noref(struct host1x host, u32 id);
	202	struct host1x_syncpt host1x_syncpt_get(struct host1x_syncpt sp);
35d747a8 TR	203	u32 host1x_syncpt_id(struct host1x_syncpt *sp);
	204	u32 host1x_syncpt_read_min(struct host1x_syncpt *sp);
	205	u32 host1x_syncpt_read_max(struct host1x_syncpt *sp);
b4a20144	206	u32 host1x_syncpt_read(struct host1x_syncpt *sp);
35d747a8	207	int host1x_syncpt_incr(struct host1x_syncpt *sp);
64400c37	208	u32 host1x_syncpt_incr_max(struct host1x_syncpt *sp, u32 incrs);
35d747a8 TR	209	int host1x_syncpt_wait(struct host1x_syncpt *sp, u32 thresh, long timeout,
35d747a8 TR	210	u32 *value);
617dd7cc	211	struct host1x_syncpt host1x_syncpt_request(struct host1x_client client,
8736fe81	212	unsigned long flags);
2aed4f5a	213	void host1x_syncpt_put(struct host1x_syncpt *sp);
86cec7ec MP	214	struct host1x_syncpt host1x_syncpt_alloc(struct host1x host,
	215	unsigned long flags,
	216	const char *name);
35d747a8	217
f5a954fe AM	218	struct host1x_syncpt_base host1x_syncpt_get_base(struct host1x_syncpt sp);
	219	u32 host1x_syncpt_base_id(struct host1x_syncpt_base *base);
	220
f5ba33fb MP	221	void host1x_syncpt_release_vblank_reservation(struct host1x_client *client,
	222	u32 syncpt_id);
	223
687db220 MP	224	struct dma_fence host1x_fence_create(struct host1x_syncpt sp, u32 threshold);
687db220 MP	225
35d747a8 TR	226	/*
	227	* host1x channel
	228	*/
	229
	230	struct host1x_channel;
	231	struct host1x_job;
	232
caccddcf	233	struct host1x_channel host1x_channel_request(struct host1x_client client);
35d747a8	234	struct host1x_channel host1x_channel_get(struct host1x_channel channel);
9ca790f4	235	void host1x_channel_stop(struct host1x_channel *channel);
35d747a8 TR	236	void host1x_channel_put(struct host1x_channel *channel);
	237	int host1x_job_submit(struct host1x_job *job);
	238
	239	/*
	240	* host1x job
	241	*/
	242
ab4f81bf TR	243	#define HOST1X_RELOC_READ (1 << 0)
	244	#define HOST1X_RELOC_WRITE (1 << 1)
	245
35d747a8	246	struct host1x_reloc {
961e3bea TR	247	struct {
	248	struct host1x_bo *bo;
	249	unsigned long offset;
	250	} cmdbuf;
	251	struct {
	252	struct host1x_bo *bo;
	253	unsigned long offset;
	254	} target;
	255	unsigned long shift;
ab4f81bf	256	unsigned long flags;
35d747a8 TR	257	};
	258
	259	struct host1x_job {
	260	/* When refcount goes to zero, job can be freed */
	261	struct kref ref;
	262
	263	/* List entry */
	264	struct list_head list;
	265
	266	/* Channel where job is submitted to */
	267	struct host1x_channel *channel;
	268
bf3d41cc TR	269	/* client where the job originated */
bf3d41cc TR	270	struct host1x_client *client;
35d747a8 TR	271
35d747a8 TR	272	/* Gathers and their memory */
e902585f MP	273	struct host1x_job_cmd *cmds;
e902585f MP	274	unsigned int num_cmds;
35d747a8	275
35d747a8	276	/* Array of handles to be pinned & unpinned */
06490bb9	277	struct host1x_reloc *relocs;
35d747a8 TR	278	unsigned int num_relocs;
	279	struct host1x_job_unpin_data *unpins;
	280	unsigned int num_unpins;
	281
	282	dma_addr_t *addr_phys;
	283	dma_addr_t *gather_addr_phys;
	284	dma_addr_t *reloc_addr_phys;
	285
	286	/* Sync point id, number of increments and end related to the submit */
2aed4f5a	287	struct host1x_syncpt *syncpt;
35d747a8 TR	288	u32 syncpt_incrs;
	289	u32 syncpt_end;
	290
c78f837a MP	291	/* Completion waiter ref */
	292	void *waiter;
	293
35d747a8 TR	294	/* Maximum time to wait for this job */
	295	unsigned int timeout;
	296
c78f837a MP	297	/* Job has timed out and should be released */
	298	bool cancelled;
	299
35d747a8 TR	300	/* Index and number of slots used in the push buffer */
	301	unsigned int first_get;
	302	unsigned int num_slots;
	303
	304	/* Copy of gathers */
	305	size_t gather_copy_size;
	306	dma_addr_t gather_copy;
	307	u8 *gather_copy_mapped;
	308
	309	/* Check if register is marked as an address reg */
a2b78b0d	310	int (is_addr_reg)(struct device dev, u32 class, u32 reg);
35d747a8	311
0f563a4b DO	312	/* Check if class belongs to the unit */
	313	int (*is_valid_class)(u32 class);
	314
35d747a8 TR	315	/* Request a SETCLASS to this class */
	316	u32 class;
	317
	318	/* Add a channel wait for previous ops to complete */
	319	bool serialize;
c78f837a MP	320
	321	/* Fast-forward syncpoint increments on job timeout */
	322	bool syncpt_recovery;
17a298e9 MP	323
	324	/* Callback called when job is freed */
	325	void (release)(struct host1x_job job);
	326	void *user_data;
0fddaa85 MP	327
	328	/* Whether host1x-side firewall should be ran for this job or not */
	329	bool enable_firewall;
24862547 MP	330
	331	/* Options for configuring engine data stream ID */
	332	/* Context device to use for job */
	333	struct host1x_memory_context *memory_context;
	334	/* Stream ID to use if context isolation is disabled (!memory_context) */
	335	u32 engine_fallback_streamid;
	336	/* Engine offset to program stream ID to */
	337	u32 engine_streamid_offset;
35d747a8 TR	338	};
	339
	340	struct host1x_job host1x_job_alloc(struct host1x_channel ch,
0fddaa85 MP	341	u32 num_cmdbufs, u32 num_relocs,
0fddaa85 MP	342	bool skip_firewall);
326bbd79 TR	343	void host1x_job_add_gather(struct host1x_job job, struct host1x_bo bo,
326bbd79 TR	344	unsigned int words, unsigned int offset);
e902585f MP	345	void host1x_job_add_wait(struct host1x_job *job, u32 id, u32 thresh,
e902585f MP	346	bool relative, u32 next_class);
35d747a8 TR	347	struct host1x_job host1x_job_get(struct host1x_job job);
	348	void host1x_job_put(struct host1x_job *job);
	349	int host1x_job_pin(struct host1x_job job, struct device dev);
	350	void host1x_job_unpin(struct host1x_job *job);
	351
776dc384 TR	352	/*
	353	* subdevice probe infrastructure
	354	*/
	355
	356	struct host1x_device;
	357
466749f1 TR	358	/**
	359	* struct host1x_driver - host1x logical device driver
	360	* @driver: core driver
	361	* @subdevs: table of OF device IDs matching subdevices for this driver
	362	* @list: list node for the driver
	363	* @probe: called when the host1x logical device is probed
	364	* @remove: called when the host1x logical device is removed
	365	* @shutdown: called when the host1x logical device is shut down
	366	*/
776dc384	367	struct host1x_driver {
f4c5cf88 TR	368	struct device_driver driver;
f4c5cf88 TR	369
776dc384 TR	370	const struct of_device_id *subdevs;
776dc384 TR	371	struct list_head list;
776dc384 TR	372
	373	int (probe)(struct host1x_device device);
	374	int (remove)(struct host1x_device device);
f4c5cf88	375	void (shutdown)(struct host1x_device device);
776dc384 TR	376	};
776dc384 TR	377
f4c5cf88 TR	378	static inline struct host1x_driver *
	379	to_host1x_driver(struct device_driver *driver)
	380	{
	381	return container_of(driver, struct host1x_driver, driver);
	382	}
	383
	384	int host1x_driver_register_full(struct host1x_driver *driver,
	385	struct module *owner);
776dc384 TR	386	void host1x_driver_unregister(struct host1x_driver *driver);
776dc384 TR	387
f4c5cf88 TR	388	#define host1x_driver_register(driver) \
	389	host1x_driver_register_full(driver, THIS_MODULE)
	390
776dc384 TR	391	struct host1x_device {
	392	struct host1x_driver *driver;
	393	struct list_head list;
	394	struct device dev;
	395
	396	struct mutex subdevs_lock;
	397	struct list_head subdevs;
	398	struct list_head active;
	399
	400	struct mutex clients_lock;
	401	struct list_head clients;
536e1715	402
f4c5cf88	403	bool registered;
1e390478 TR	404
1e390478 TR	405	struct device_dma_parameters dma_parms;
776dc384 TR	406	};
	407
	408	static inline struct host1x_device to_host1x_device(struct device dev)
	409	{
	410	return container_of(dev, struct host1x_device, dev);
	411	}
	412
	413	int host1x_device_init(struct host1x_device *device);
	414	int host1x_device_exit(struct host1x_device *device);
	415
0cfe5a6e TR	416	void __host1x_client_init(struct host1x_client client, struct lock_class_key key);
	417	void host1x_client_exit(struct host1x_client *client);
	418
	419	#define host1x_client_init(client) \
	420	({ \
	421	static struct lock_class_key __key; \
	422	__host1x_client_init(client, &__key); \
	423	})
	424
	425	int __host1x_client_register(struct host1x_client *client);
	426
	427	/*
	428	* Note that this wrapper calls __host1x_client_init() for compatibility
	429	* with existing callers. Callers that want to separately initialize and
	430	* register a host1x client must first initialize using either of the
	431	* __host1x_client_init() or host1x_client_init() functions and then use
	432	* the low-level __host1x_client_register() function to avoid the client
	433	* getting reinitialized.
	434	*/
	435	#define host1x_client_register(client) \
	436	({ \
	437	static struct lock_class_key __key; \
	438	__host1x_client_init(client, &__key); \
	439	__host1x_client_register(client); \
a24f9817 MP	440	})
a24f9817 MP	441
776dc384 TR	442	int host1x_client_unregister(struct host1x_client *client);
776dc384 TR	443
fd67e9c6 TR	444	int host1x_client_suspend(struct host1x_client *client);
	445	int host1x_client_resume(struct host1x_client *client);
	446
4de6a2d6 TR	447	struct tegra_mipi_device;
4de6a2d6 TR	448
767598d4 SK	449	struct tegra_mipi_device tegra_mipi_request(struct device device,
767598d4 SK	450	struct device_node *np);
4de6a2d6	451	void tegra_mipi_free(struct tegra_mipi_device *device);
87904c3e TR	452	int tegra_mipi_enable(struct tegra_mipi_device *device);
87904c3e TR	453	int tegra_mipi_disable(struct tegra_mipi_device *device);
cf5153e4 SK	454	int tegra_mipi_start_calibration(struct tegra_mipi_device *device);
cf5153e4 SK	455	int tegra_mipi_finish_calibration(struct tegra_mipi_device *device);
4de6a2d6	456
8aa5bcb6 MP	457	/* host1x memory contexts */
	458
	459	struct host1x_memory_context {
	460	struct host1x *host;
	461
	462	refcount_t ref;
	463	struct pid *owner;
	464
	465	struct device dev;
	466	u64 dma_mask;
	467	u32 stream_id;
	468	};
	469
	470	#ifdef CONFIG_IOMMU_API
	471	struct host1x_memory_context host1x_memory_context_alloc(struct host1x host1x,
	472	struct pid *pid);
	473	void host1x_memory_context_get(struct host1x_memory_context *cd);
	474	void host1x_memory_context_put(struct host1x_memory_context *cd);
	475	#else
	476	static inline struct host1x_memory_context host1x_memory_context_alloc(struct host1x host1x,
	477	struct pid *pid)
	478	{
	479	return NULL;
	480	}
	481
	482	static inline void host1x_memory_context_get(struct host1x_memory_context *cd)
	483	{
	484	}
	485
	486	static inline void host1x_memory_context_put(struct host1x_memory_context *cd)
	487	{
	488	}
	489	#endif
	490
6579324a	491	#endif