1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Copyright (c) 2009-2013, NVIDIA Corporation. All rights reserved.
6 #ifndef __LINUX_HOST1X_H
7 #define __LINUX_HOST1X_H
9 #include <linux/device.h>
10 #include <linux/types.h>
13 HOST1X_CLASS_HOST1X
= 0x1,
14 HOST1X_CLASS_GR2D
= 0x51,
15 HOST1X_CLASS_GR2D_SB
= 0x52,
16 HOST1X_CLASS_VIC
= 0x5D,
17 HOST1X_CLASS_GR3D
= 0x60,
24 u64
host1x_get_dma_mask(struct host1x
*host1x
);
27 * struct host1x_client_ops - host1x client operations
28 * @init: host1x client initialization code
29 * @exit: host1x client tear down code
30 * @suspend: host1x client suspend code
31 * @resume: host1x client resume code
33 struct host1x_client_ops
{
34 int (*init
)(struct host1x_client
*client
);
35 int (*exit
)(struct host1x_client
*client
);
36 int (*suspend
)(struct host1x_client
*client
);
37 int (*resume
)(struct host1x_client
*client
);
41 * struct host1x_client - host1x client structure
42 * @list: list node for the host1x client
43 * @host: pointer to struct device representing the host1x controller
44 * @dev: pointer to struct device backing this host1x client
45 * @group: IOMMU group that this client is a member of
46 * @ops: host1x client operations
47 * @class: host1x class represented by this client
48 * @channel: host1x channel associated with this client
49 * @syncpts: array of syncpoints requested for this client
50 * @num_syncpts: number of syncpoints requested for this client
51 * @parent: pointer to parent structure
52 * @usecount: reference count for this structure
53 * @lock: mutex for mutually exclusive concurrency
55 struct host1x_client
{
56 struct list_head list
;
59 struct iommu_group
*group
;
61 const struct host1x_client_ops
*ops
;
63 enum host1x_class
class;
64 struct host1x_channel
*channel
;
66 struct host1x_syncpt
**syncpts
;
67 unsigned int num_syncpts
;
69 struct host1x_client
*parent
;
70 unsigned int usecount
;
75 * host1x buffer objects
81 struct host1x_bo_ops
{
82 struct host1x_bo
*(*get
)(struct host1x_bo
*bo
);
83 void (*put
)(struct host1x_bo
*bo
);
84 struct sg_table
*(*pin
)(struct device
*dev
, struct host1x_bo
*bo
,
86 void (*unpin
)(struct device
*dev
, struct sg_table
*sgt
);
87 void *(*mmap
)(struct host1x_bo
*bo
);
88 void (*munmap
)(struct host1x_bo
*bo
, void *addr
);
92 const struct host1x_bo_ops
*ops
;
95 static inline void host1x_bo_init(struct host1x_bo
*bo
,
96 const struct host1x_bo_ops
*ops
)
101 static inline struct host1x_bo
*host1x_bo_get(struct host1x_bo
*bo
)
103 return bo
->ops
->get(bo
);
106 static inline void host1x_bo_put(struct host1x_bo
*bo
)
111 static inline struct sg_table
*host1x_bo_pin(struct device
*dev
,
112 struct host1x_bo
*bo
,
115 return bo
->ops
->pin(dev
, bo
, phys
);
118 static inline void host1x_bo_unpin(struct device
*dev
, struct host1x_bo
*bo
,
119 struct sg_table
*sgt
)
121 bo
->ops
->unpin(dev
, sgt
);
124 static inline void *host1x_bo_mmap(struct host1x_bo
*bo
)
126 return bo
->ops
->mmap(bo
);
129 static inline void host1x_bo_munmap(struct host1x_bo
*bo
, void *addr
)
131 bo
->ops
->munmap(bo
, addr
);
138 #define HOST1X_SYNCPT_CLIENT_MANAGED (1 << 0)
139 #define HOST1X_SYNCPT_HAS_BASE (1 << 1)
141 struct host1x_syncpt_base
;
142 struct host1x_syncpt
;
145 struct host1x_syncpt
*host1x_syncpt_get(struct host1x
*host
, u32 id
);
146 u32
host1x_syncpt_id(struct host1x_syncpt
*sp
);
147 u32
host1x_syncpt_read_min(struct host1x_syncpt
*sp
);
148 u32
host1x_syncpt_read_max(struct host1x_syncpt
*sp
);
149 u32
host1x_syncpt_read(struct host1x_syncpt
*sp
);
150 int host1x_syncpt_incr(struct host1x_syncpt
*sp
);
151 u32
host1x_syncpt_incr_max(struct host1x_syncpt
*sp
, u32 incrs
);
152 int host1x_syncpt_wait(struct host1x_syncpt
*sp
, u32 thresh
, long timeout
,
154 struct host1x_syncpt
*host1x_syncpt_request(struct host1x_client
*client
,
155 unsigned long flags
);
156 void host1x_syncpt_free(struct host1x_syncpt
*sp
);
158 struct host1x_syncpt_base
*host1x_syncpt_get_base(struct host1x_syncpt
*sp
);
159 u32
host1x_syncpt_base_id(struct host1x_syncpt_base
*base
);
165 struct host1x_channel
;
168 struct host1x_channel
*host1x_channel_request(struct host1x_client
*client
);
169 struct host1x_channel
*host1x_channel_get(struct host1x_channel
*channel
);
170 void host1x_channel_put(struct host1x_channel
*channel
);
171 int host1x_job_submit(struct host1x_job
*job
);
177 #define HOST1X_RELOC_READ (1 << 0)
178 #define HOST1X_RELOC_WRITE (1 << 1)
180 struct host1x_reloc
{
182 struct host1x_bo
*bo
;
183 unsigned long offset
;
186 struct host1x_bo
*bo
;
187 unsigned long offset
;
194 /* When refcount goes to zero, job can be freed */
198 struct list_head list
;
200 /* Channel where job is submitted to */
201 struct host1x_channel
*channel
;
203 /* client where the job originated */
204 struct host1x_client
*client
;
206 /* Gathers and their memory */
207 struct host1x_job_gather
*gathers
;
208 unsigned int num_gathers
;
210 /* Array of handles to be pinned & unpinned */
211 struct host1x_reloc
*relocs
;
212 unsigned int num_relocs
;
213 struct host1x_job_unpin_data
*unpins
;
214 unsigned int num_unpins
;
216 dma_addr_t
*addr_phys
;
217 dma_addr_t
*gather_addr_phys
;
218 dma_addr_t
*reloc_addr_phys
;
220 /* Sync point id, number of increments and end related to the submit */
225 /* Maximum time to wait for this job */
226 unsigned int timeout
;
228 /* Index and number of slots used in the push buffer */
229 unsigned int first_get
;
230 unsigned int num_slots
;
232 /* Copy of gathers */
233 size_t gather_copy_size
;
234 dma_addr_t gather_copy
;
235 u8
*gather_copy_mapped
;
237 /* Check if register is marked as an address reg */
238 int (*is_addr_reg
)(struct device
*dev
, u32
class, u32 reg
);
240 /* Check if class belongs to the unit */
241 int (*is_valid_class
)(u32
class);
243 /* Request a SETCLASS to this class */
246 /* Add a channel wait for previous ops to complete */
250 struct host1x_job
*host1x_job_alloc(struct host1x_channel
*ch
,
251 u32 num_cmdbufs
, u32 num_relocs
);
252 void host1x_job_add_gather(struct host1x_job
*job
, struct host1x_bo
*bo
,
253 unsigned int words
, unsigned int offset
);
254 struct host1x_job
*host1x_job_get(struct host1x_job
*job
);
255 void host1x_job_put(struct host1x_job
*job
);
256 int host1x_job_pin(struct host1x_job
*job
, struct device
*dev
);
257 void host1x_job_unpin(struct host1x_job
*job
);
260 * subdevice probe infrastructure
263 struct host1x_device
;
266 * struct host1x_driver - host1x logical device driver
267 * @driver: core driver
268 * @subdevs: table of OF device IDs matching subdevices for this driver
269 * @list: list node for the driver
270 * @probe: called when the host1x logical device is probed
271 * @remove: called when the host1x logical device is removed
272 * @shutdown: called when the host1x logical device is shut down
274 struct host1x_driver
{
275 struct device_driver driver
;
277 const struct of_device_id
*subdevs
;
278 struct list_head list
;
280 int (*probe
)(struct host1x_device
*device
);
281 int (*remove
)(struct host1x_device
*device
);
282 void (*shutdown
)(struct host1x_device
*device
);
285 static inline struct host1x_driver
*
286 to_host1x_driver(struct device_driver
*driver
)
288 return container_of(driver
, struct host1x_driver
, driver
);
291 int host1x_driver_register_full(struct host1x_driver
*driver
,
292 struct module
*owner
);
293 void host1x_driver_unregister(struct host1x_driver
*driver
);
295 #define host1x_driver_register(driver) \
296 host1x_driver_register_full(driver, THIS_MODULE)
298 struct host1x_device
{
299 struct host1x_driver
*driver
;
300 struct list_head list
;
303 struct mutex subdevs_lock
;
304 struct list_head subdevs
;
305 struct list_head active
;
307 struct mutex clients_lock
;
308 struct list_head clients
;
312 struct device_dma_parameters dma_parms
;
315 static inline struct host1x_device
*to_host1x_device(struct device
*dev
)
317 return container_of(dev
, struct host1x_device
, dev
);
320 int host1x_device_init(struct host1x_device
*device
);
321 int host1x_device_exit(struct host1x_device
*device
);
323 int __host1x_client_register(struct host1x_client
*client
,
324 struct lock_class_key
*key
);
325 #define host1x_client_register(class) \
327 static struct lock_class_key __key; \
328 __host1x_client_register(class, &__key); \
331 int host1x_client_unregister(struct host1x_client
*client
);
333 int host1x_client_suspend(struct host1x_client
*client
);
334 int host1x_client_resume(struct host1x_client
*client
);
336 struct tegra_mipi_device
;
338 struct tegra_mipi_device
*tegra_mipi_request(struct device
*device
,
339 struct device_node
*np
);
340 void tegra_mipi_free(struct tegra_mipi_device
*device
);
341 int tegra_mipi_enable(struct tegra_mipi_device
*device
);
342 int tegra_mipi_disable(struct tegra_mipi_device
*device
);
343 int tegra_mipi_start_calibration(struct tegra_mipi_device
*device
);
344 int tegra_mipi_finish_calibration(struct tegra_mipi_device
*device
);