398 lines
11 KiB
C
398 lines
11 KiB
C
/* 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/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,
|
|
};
|
|
|
|
struct host1x;
|
|
struct host1x_client;
|
|
struct iommu_group;
|
|
|
|
u64 host1x_get_dma_mask(struct host1x *host1x);
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
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;
|
|
};
|
|
|
|
/*
|
|
* host1x buffer objects
|
|
*/
|
|
|
|
struct host1x_bo;
|
|
struct sg_table;
|
|
|
|
struct host1x_bo_ops {
|
|
struct host1x_bo *(*get)(struct host1x_bo *bo);
|
|
void (*put)(struct host1x_bo *bo);
|
|
struct sg_table *(*pin)(struct device *dev, struct host1x_bo *bo,
|
|
dma_addr_t *phys);
|
|
void (*unpin)(struct device *dev, struct sg_table *sgt);
|
|
void *(*mmap)(struct host1x_bo *bo);
|
|
void (*munmap)(struct host1x_bo *bo, void *addr);
|
|
};
|
|
|
|
struct host1x_bo {
|
|
const struct host1x_bo_ops *ops;
|
|
};
|
|
|
|
static inline void host1x_bo_init(struct host1x_bo *bo,
|
|
const struct host1x_bo_ops *ops)
|
|
{
|
|
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);
|
|
}
|
|
|
|
static inline struct sg_table *host1x_bo_pin(struct device *dev,
|
|
struct host1x_bo *bo,
|
|
dma_addr_t *phys)
|
|
{
|
|
return bo->ops->pin(dev, bo, phys);
|
|
}
|
|
|
|
static inline void host1x_bo_unpin(struct device *dev, struct host1x_bo *bo,
|
|
struct sg_table *sgt)
|
|
{
|
|
bo->ops->unpin(dev, sgt);
|
|
}
|
|
|
|
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_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;
|
|
};
|
|
|
|
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);
|
|
|
|
#endif
|