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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> |
35d747a8 TR |
10 | #include <linux/types.h> |
11 | ||
6579324a | 12 | enum host1x_class { |
e1e90644 TR |
13 | HOST1X_CLASS_HOST1X = 0x1, |
14 | HOST1X_CLASS_GR2D = 0x51, | |
15 | HOST1X_CLASS_GR2D_SB = 0x52, | |
0ae797a8 | 16 | HOST1X_CLASS_VIC = 0x5D, |
5f60ed0d | 17 | HOST1X_CLASS_GR3D = 0x60, |
6579324a TB |
18 | }; |
19 | ||
53fa7f72 TR |
20 | struct host1x_client; |
21 | ||
466749f1 TR |
22 | /** |
23 | * struct host1x_client_ops - host1x client operations | |
24 | * @init: host1x client initialization code | |
25 | * @exit: host1x client tear down code | |
26 | */ | |
53fa7f72 TR |
27 | struct host1x_client_ops { |
28 | int (*init)(struct host1x_client *client); | |
29 | int (*exit)(struct host1x_client *client); | |
30 | }; | |
31 | ||
466749f1 TR |
32 | /** |
33 | * struct host1x_client - host1x client structure | |
34 | * @list: list node for the host1x client | |
35 | * @parent: pointer to struct device representing the host1x controller | |
36 | * @dev: pointer to struct device backing this host1x client | |
37 | * @ops: host1x client operations | |
38 | * @class: host1x class represented by this client | |
39 | * @channel: host1x channel associated with this client | |
40 | * @syncpts: array of syncpoints requested for this client | |
41 | * @num_syncpts: number of syncpoints requested for this client | |
42 | */ | |
53fa7f72 TR |
43 | struct host1x_client { |
44 | struct list_head list; | |
776dc384 | 45 | struct device *parent; |
53fa7f72 TR |
46 | struct device *dev; |
47 | ||
48 | const struct host1x_client_ops *ops; | |
49 | ||
50 | enum host1x_class class; | |
51 | struct host1x_channel *channel; | |
52 | ||
53 | struct host1x_syncpt **syncpts; | |
54 | unsigned int num_syncpts; | |
55 | }; | |
56 | ||
35d747a8 TR |
57 | /* |
58 | * host1x buffer objects | |
59 | */ | |
60 | ||
61 | struct host1x_bo; | |
62 | struct sg_table; | |
63 | ||
64 | struct host1x_bo_ops { | |
65 | struct host1x_bo *(*get)(struct host1x_bo *bo); | |
66 | void (*put)(struct host1x_bo *bo); | |
67 | dma_addr_t (*pin)(struct host1x_bo *bo, struct sg_table **sgt); | |
68 | void (*unpin)(struct host1x_bo *bo, struct sg_table *sgt); | |
69 | void *(*mmap)(struct host1x_bo *bo); | |
70 | void (*munmap)(struct host1x_bo *bo, void *addr); | |
71 | void *(*kmap)(struct host1x_bo *bo, unsigned int pagenum); | |
72 | void (*kunmap)(struct host1x_bo *bo, unsigned int pagenum, void *addr); | |
73 | }; | |
74 | ||
75 | struct host1x_bo { | |
76 | const struct host1x_bo_ops *ops; | |
77 | }; | |
78 | ||
79 | static inline void host1x_bo_init(struct host1x_bo *bo, | |
80 | const struct host1x_bo_ops *ops) | |
81 | { | |
82 | bo->ops = ops; | |
83 | } | |
84 | ||
85 | static inline struct host1x_bo *host1x_bo_get(struct host1x_bo *bo) | |
86 | { | |
87 | return bo->ops->get(bo); | |
88 | } | |
89 | ||
90 | static inline void host1x_bo_put(struct host1x_bo *bo) | |
91 | { | |
92 | bo->ops->put(bo); | |
93 | } | |
94 | ||
95 | static inline dma_addr_t host1x_bo_pin(struct host1x_bo *bo, | |
96 | struct sg_table **sgt) | |
97 | { | |
98 | return bo->ops->pin(bo, sgt); | |
99 | } | |
100 | ||
101 | static inline void host1x_bo_unpin(struct host1x_bo *bo, struct sg_table *sgt) | |
102 | { | |
103 | bo->ops->unpin(bo, sgt); | |
104 | } | |
105 | ||
106 | static inline void *host1x_bo_mmap(struct host1x_bo *bo) | |
107 | { | |
108 | return bo->ops->mmap(bo); | |
109 | } | |
110 | ||
111 | static inline void host1x_bo_munmap(struct host1x_bo *bo, void *addr) | |
112 | { | |
113 | bo->ops->munmap(bo, addr); | |
114 | } | |
115 | ||
116 | static inline void *host1x_bo_kmap(struct host1x_bo *bo, unsigned int pagenum) | |
117 | { | |
118 | return bo->ops->kmap(bo, pagenum); | |
119 | } | |
120 | ||
121 | static inline void host1x_bo_kunmap(struct host1x_bo *bo, | |
122 | unsigned int pagenum, void *addr) | |
123 | { | |
124 | bo->ops->kunmap(bo, pagenum, addr); | |
125 | } | |
126 | ||
127 | /* | |
128 | * host1x syncpoints | |
129 | */ | |
130 | ||
8736fe81 | 131 | #define HOST1X_SYNCPT_CLIENT_MANAGED (1 << 0) |
f5a954fe | 132 | #define HOST1X_SYNCPT_HAS_BASE (1 << 1) |
8736fe81 | 133 | |
f5a954fe | 134 | struct host1x_syncpt_base; |
35d747a8 TR |
135 | struct host1x_syncpt; |
136 | struct host1x; | |
137 | ||
138 | struct host1x_syncpt *host1x_syncpt_get(struct host1x *host, u32 id); | |
139 | u32 host1x_syncpt_id(struct host1x_syncpt *sp); | |
140 | u32 host1x_syncpt_read_min(struct host1x_syncpt *sp); | |
141 | u32 host1x_syncpt_read_max(struct host1x_syncpt *sp); | |
b4a20144 | 142 | u32 host1x_syncpt_read(struct host1x_syncpt *sp); |
35d747a8 | 143 | int host1x_syncpt_incr(struct host1x_syncpt *sp); |
64400c37 | 144 | u32 host1x_syncpt_incr_max(struct host1x_syncpt *sp, u32 incrs); |
35d747a8 TR |
145 | int host1x_syncpt_wait(struct host1x_syncpt *sp, u32 thresh, long timeout, |
146 | u32 *value); | |
617dd7cc | 147 | struct host1x_syncpt *host1x_syncpt_request(struct host1x_client *client, |
8736fe81 | 148 | unsigned long flags); |
35d747a8 TR |
149 | void host1x_syncpt_free(struct host1x_syncpt *sp); |
150 | ||
f5a954fe AM |
151 | struct host1x_syncpt_base *host1x_syncpt_get_base(struct host1x_syncpt *sp); |
152 | u32 host1x_syncpt_base_id(struct host1x_syncpt_base *base); | |
153 | ||
35d747a8 TR |
154 | /* |
155 | * host1x channel | |
156 | */ | |
157 | ||
158 | struct host1x_channel; | |
159 | struct host1x_job; | |
160 | ||
161 | struct host1x_channel *host1x_channel_request(struct device *dev); | |
35d747a8 TR |
162 | struct host1x_channel *host1x_channel_get(struct host1x_channel *channel); |
163 | void host1x_channel_put(struct host1x_channel *channel); | |
164 | int host1x_job_submit(struct host1x_job *job); | |
165 | ||
166 | /* | |
167 | * host1x job | |
168 | */ | |
169 | ||
170 | struct host1x_reloc { | |
961e3bea TR |
171 | struct { |
172 | struct host1x_bo *bo; | |
173 | unsigned long offset; | |
174 | } cmdbuf; | |
175 | struct { | |
176 | struct host1x_bo *bo; | |
177 | unsigned long offset; | |
178 | } target; | |
179 | unsigned long shift; | |
35d747a8 TR |
180 | }; |
181 | ||
182 | struct host1x_job { | |
183 | /* When refcount goes to zero, job can be freed */ | |
184 | struct kref ref; | |
185 | ||
186 | /* List entry */ | |
187 | struct list_head list; | |
188 | ||
189 | /* Channel where job is submitted to */ | |
190 | struct host1x_channel *channel; | |
191 | ||
bf3d41cc TR |
192 | /* client where the job originated */ |
193 | struct host1x_client *client; | |
35d747a8 TR |
194 | |
195 | /* Gathers and their memory */ | |
196 | struct host1x_job_gather *gathers; | |
197 | unsigned int num_gathers; | |
198 | ||
35d747a8 | 199 | /* Array of handles to be pinned & unpinned */ |
06490bb9 | 200 | struct host1x_reloc *relocs; |
35d747a8 TR |
201 | unsigned int num_relocs; |
202 | struct host1x_job_unpin_data *unpins; | |
203 | unsigned int num_unpins; | |
204 | ||
205 | dma_addr_t *addr_phys; | |
206 | dma_addr_t *gather_addr_phys; | |
207 | dma_addr_t *reloc_addr_phys; | |
208 | ||
209 | /* Sync point id, number of increments and end related to the submit */ | |
210 | u32 syncpt_id; | |
211 | u32 syncpt_incrs; | |
212 | u32 syncpt_end; | |
213 | ||
214 | /* Maximum time to wait for this job */ | |
215 | unsigned int timeout; | |
216 | ||
217 | /* Index and number of slots used in the push buffer */ | |
218 | unsigned int first_get; | |
219 | unsigned int num_slots; | |
220 | ||
221 | /* Copy of gathers */ | |
222 | size_t gather_copy_size; | |
223 | dma_addr_t gather_copy; | |
224 | u8 *gather_copy_mapped; | |
225 | ||
226 | /* Check if register is marked as an address reg */ | |
a2b78b0d | 227 | int (*is_addr_reg)(struct device *dev, u32 class, u32 reg); |
35d747a8 | 228 | |
0f563a4b DO |
229 | /* Check if class belongs to the unit */ |
230 | int (*is_valid_class)(u32 class); | |
231 | ||
35d747a8 TR |
232 | /* Request a SETCLASS to this class */ |
233 | u32 class; | |
234 | ||
235 | /* Add a channel wait for previous ops to complete */ | |
236 | bool serialize; | |
237 | }; | |
238 | ||
239 | struct host1x_job *host1x_job_alloc(struct host1x_channel *ch, | |
24c94e16 | 240 | u32 num_cmdbufs, u32 num_relocs); |
326bbd79 TR |
241 | void host1x_job_add_gather(struct host1x_job *job, struct host1x_bo *bo, |
242 | unsigned int words, unsigned int offset); | |
35d747a8 TR |
243 | struct host1x_job *host1x_job_get(struct host1x_job *job); |
244 | void host1x_job_put(struct host1x_job *job); | |
245 | int host1x_job_pin(struct host1x_job *job, struct device *dev); | |
246 | void host1x_job_unpin(struct host1x_job *job); | |
247 | ||
776dc384 TR |
248 | /* |
249 | * subdevice probe infrastructure | |
250 | */ | |
251 | ||
252 | struct host1x_device; | |
253 | ||
466749f1 TR |
254 | /** |
255 | * struct host1x_driver - host1x logical device driver | |
256 | * @driver: core driver | |
257 | * @subdevs: table of OF device IDs matching subdevices for this driver | |
258 | * @list: list node for the driver | |
259 | * @probe: called when the host1x logical device is probed | |
260 | * @remove: called when the host1x logical device is removed | |
261 | * @shutdown: called when the host1x logical device is shut down | |
262 | */ | |
776dc384 | 263 | struct host1x_driver { |
f4c5cf88 TR |
264 | struct device_driver driver; |
265 | ||
776dc384 TR |
266 | const struct of_device_id *subdevs; |
267 | struct list_head list; | |
776dc384 TR |
268 | |
269 | int (*probe)(struct host1x_device *device); | |
270 | int (*remove)(struct host1x_device *device); | |
f4c5cf88 | 271 | void (*shutdown)(struct host1x_device *device); |
776dc384 TR |
272 | }; |
273 | ||
f4c5cf88 TR |
274 | static inline struct host1x_driver * |
275 | to_host1x_driver(struct device_driver *driver) | |
276 | { | |
277 | return container_of(driver, struct host1x_driver, driver); | |
278 | } | |
279 | ||
280 | int host1x_driver_register_full(struct host1x_driver *driver, | |
281 | struct module *owner); | |
776dc384 TR |
282 | void host1x_driver_unregister(struct host1x_driver *driver); |
283 | ||
f4c5cf88 TR |
284 | #define host1x_driver_register(driver) \ |
285 | host1x_driver_register_full(driver, THIS_MODULE) | |
286 | ||
776dc384 TR |
287 | struct host1x_device { |
288 | struct host1x_driver *driver; | |
289 | struct list_head list; | |
290 | struct device dev; | |
291 | ||
292 | struct mutex subdevs_lock; | |
293 | struct list_head subdevs; | |
294 | struct list_head active; | |
295 | ||
296 | struct mutex clients_lock; | |
297 | struct list_head clients; | |
536e1715 | 298 | |
f4c5cf88 | 299 | bool registered; |
776dc384 TR |
300 | }; |
301 | ||
302 | static inline struct host1x_device *to_host1x_device(struct device *dev) | |
303 | { | |
304 | return container_of(dev, struct host1x_device, dev); | |
305 | } | |
306 | ||
307 | int host1x_device_init(struct host1x_device *device); | |
308 | int host1x_device_exit(struct host1x_device *device); | |
309 | ||
310 | int host1x_client_register(struct host1x_client *client); | |
311 | int host1x_client_unregister(struct host1x_client *client); | |
312 | ||
4de6a2d6 TR |
313 | struct tegra_mipi_device; |
314 | ||
315 | struct tegra_mipi_device *tegra_mipi_request(struct device *device); | |
316 | void tegra_mipi_free(struct tegra_mipi_device *device); | |
87904c3e TR |
317 | int tegra_mipi_enable(struct tegra_mipi_device *device); |
318 | int tegra_mipi_disable(struct tegra_mipi_device *device); | |
4de6a2d6 TR |
319 | int tegra_mipi_calibrate(struct tegra_mipi_device *device); |
320 | ||
6579324a | 321 | #endif |