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6579324a | 1 | /* |
6579324a TB |
2 | * Copyright (c) 2009-2013, NVIDIA Corporation. All rights reserved. |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
17 | */ | |
18 | ||
19 | #ifndef __LINUX_HOST1X_H | |
20 | #define __LINUX_HOST1X_H | |
21 | ||
776dc384 | 22 | #include <linux/device.h> |
35d747a8 TR |
23 | #include <linux/types.h> |
24 | ||
6579324a | 25 | enum host1x_class { |
e1e90644 TR |
26 | HOST1X_CLASS_HOST1X = 0x1, |
27 | HOST1X_CLASS_GR2D = 0x51, | |
28 | HOST1X_CLASS_GR2D_SB = 0x52, | |
0ae797a8 | 29 | HOST1X_CLASS_VIC = 0x5D, |
5f60ed0d | 30 | HOST1X_CLASS_GR3D = 0x60, |
6579324a TB |
31 | }; |
32 | ||
53fa7f72 TR |
33 | struct host1x_client; |
34 | ||
466749f1 TR |
35 | /** |
36 | * struct host1x_client_ops - host1x client operations | |
37 | * @init: host1x client initialization code | |
38 | * @exit: host1x client tear down code | |
39 | */ | |
53fa7f72 TR |
40 | struct host1x_client_ops { |
41 | int (*init)(struct host1x_client *client); | |
42 | int (*exit)(struct host1x_client *client); | |
43 | }; | |
44 | ||
466749f1 TR |
45 | /** |
46 | * struct host1x_client - host1x client structure | |
47 | * @list: list node for the host1x client | |
48 | * @parent: pointer to struct device representing the host1x controller | |
49 | * @dev: pointer to struct device backing this host1x client | |
50 | * @ops: host1x client operations | |
51 | * @class: host1x class represented by this client | |
52 | * @channel: host1x channel associated with this client | |
53 | * @syncpts: array of syncpoints requested for this client | |
54 | * @num_syncpts: number of syncpoints requested for this client | |
55 | */ | |
53fa7f72 TR |
56 | struct host1x_client { |
57 | struct list_head list; | |
776dc384 | 58 | struct device *parent; |
53fa7f72 TR |
59 | struct device *dev; |
60 | ||
61 | const struct host1x_client_ops *ops; | |
62 | ||
63 | enum host1x_class class; | |
64 | struct host1x_channel *channel; | |
65 | ||
66 | struct host1x_syncpt **syncpts; | |
67 | unsigned int num_syncpts; | |
68 | }; | |
69 | ||
35d747a8 TR |
70 | /* |
71 | * host1x buffer objects | |
72 | */ | |
73 | ||
74 | struct host1x_bo; | |
75 | struct sg_table; | |
76 | ||
77 | struct host1x_bo_ops { | |
78 | struct host1x_bo *(*get)(struct host1x_bo *bo); | |
79 | void (*put)(struct host1x_bo *bo); | |
80 | dma_addr_t (*pin)(struct host1x_bo *bo, struct sg_table **sgt); | |
81 | void (*unpin)(struct host1x_bo *bo, struct sg_table *sgt); | |
82 | void *(*mmap)(struct host1x_bo *bo); | |
83 | void (*munmap)(struct host1x_bo *bo, void *addr); | |
84 | void *(*kmap)(struct host1x_bo *bo, unsigned int pagenum); | |
85 | void (*kunmap)(struct host1x_bo *bo, unsigned int pagenum, void *addr); | |
86 | }; | |
87 | ||
88 | struct host1x_bo { | |
89 | const struct host1x_bo_ops *ops; | |
90 | }; | |
91 | ||
92 | static inline void host1x_bo_init(struct host1x_bo *bo, | |
93 | const struct host1x_bo_ops *ops) | |
94 | { | |
95 | bo->ops = ops; | |
96 | } | |
97 | ||
98 | static inline struct host1x_bo *host1x_bo_get(struct host1x_bo *bo) | |
99 | { | |
100 | return bo->ops->get(bo); | |
101 | } | |
102 | ||
103 | static inline void host1x_bo_put(struct host1x_bo *bo) | |
104 | { | |
105 | bo->ops->put(bo); | |
106 | } | |
107 | ||
108 | static inline dma_addr_t host1x_bo_pin(struct host1x_bo *bo, | |
109 | struct sg_table **sgt) | |
110 | { | |
111 | return bo->ops->pin(bo, sgt); | |
112 | } | |
113 | ||
114 | static inline void host1x_bo_unpin(struct host1x_bo *bo, struct sg_table *sgt) | |
115 | { | |
116 | bo->ops->unpin(bo, sgt); | |
117 | } | |
118 | ||
119 | static inline void *host1x_bo_mmap(struct host1x_bo *bo) | |
120 | { | |
121 | return bo->ops->mmap(bo); | |
122 | } | |
123 | ||
124 | static inline void host1x_bo_munmap(struct host1x_bo *bo, void *addr) | |
125 | { | |
126 | bo->ops->munmap(bo, addr); | |
127 | } | |
128 | ||
129 | static inline void *host1x_bo_kmap(struct host1x_bo *bo, unsigned int pagenum) | |
130 | { | |
131 | return bo->ops->kmap(bo, pagenum); | |
132 | } | |
133 | ||
134 | static inline void host1x_bo_kunmap(struct host1x_bo *bo, | |
135 | unsigned int pagenum, void *addr) | |
136 | { | |
137 | bo->ops->kunmap(bo, pagenum, addr); | |
138 | } | |
139 | ||
140 | /* | |
141 | * host1x syncpoints | |
142 | */ | |
143 | ||
8736fe81 | 144 | #define HOST1X_SYNCPT_CLIENT_MANAGED (1 << 0) |
f5a954fe | 145 | #define HOST1X_SYNCPT_HAS_BASE (1 << 1) |
8736fe81 | 146 | |
f5a954fe | 147 | struct host1x_syncpt_base; |
35d747a8 TR |
148 | struct host1x_syncpt; |
149 | struct host1x; | |
150 | ||
151 | struct host1x_syncpt *host1x_syncpt_get(struct host1x *host, u32 id); | |
152 | u32 host1x_syncpt_id(struct host1x_syncpt *sp); | |
153 | u32 host1x_syncpt_read_min(struct host1x_syncpt *sp); | |
154 | u32 host1x_syncpt_read_max(struct host1x_syncpt *sp); | |
b4a20144 | 155 | u32 host1x_syncpt_read(struct host1x_syncpt *sp); |
35d747a8 | 156 | int host1x_syncpt_incr(struct host1x_syncpt *sp); |
64400c37 | 157 | u32 host1x_syncpt_incr_max(struct host1x_syncpt *sp, u32 incrs); |
35d747a8 TR |
158 | int host1x_syncpt_wait(struct host1x_syncpt *sp, u32 thresh, long timeout, |
159 | u32 *value); | |
617dd7cc | 160 | struct host1x_syncpt *host1x_syncpt_request(struct host1x_client *client, |
8736fe81 | 161 | unsigned long flags); |
35d747a8 TR |
162 | void host1x_syncpt_free(struct host1x_syncpt *sp); |
163 | ||
f5a954fe AM |
164 | struct host1x_syncpt_base *host1x_syncpt_get_base(struct host1x_syncpt *sp); |
165 | u32 host1x_syncpt_base_id(struct host1x_syncpt_base *base); | |
166 | ||
35d747a8 TR |
167 | /* |
168 | * host1x channel | |
169 | */ | |
170 | ||
171 | struct host1x_channel; | |
172 | struct host1x_job; | |
173 | ||
174 | struct host1x_channel *host1x_channel_request(struct device *dev); | |
35d747a8 TR |
175 | struct host1x_channel *host1x_channel_get(struct host1x_channel *channel); |
176 | void host1x_channel_put(struct host1x_channel *channel); | |
177 | int host1x_job_submit(struct host1x_job *job); | |
178 | ||
179 | /* | |
180 | * host1x job | |
181 | */ | |
182 | ||
183 | struct host1x_reloc { | |
961e3bea TR |
184 | struct { |
185 | struct host1x_bo *bo; | |
186 | unsigned long offset; | |
187 | } cmdbuf; | |
188 | struct { | |
189 | struct host1x_bo *bo; | |
190 | unsigned long offset; | |
191 | } target; | |
192 | unsigned long shift; | |
35d747a8 TR |
193 | }; |
194 | ||
195 | struct host1x_job { | |
196 | /* When refcount goes to zero, job can be freed */ | |
197 | struct kref ref; | |
198 | ||
199 | /* List entry */ | |
200 | struct list_head list; | |
201 | ||
202 | /* Channel where job is submitted to */ | |
203 | struct host1x_channel *channel; | |
204 | ||
205 | u32 client; | |
206 | ||
207 | /* Gathers and their memory */ | |
208 | struct host1x_job_gather *gathers; | |
209 | unsigned int num_gathers; | |
210 | ||
35d747a8 TR |
211 | /* Array of handles to be pinned & unpinned */ |
212 | struct host1x_reloc *relocarray; | |
213 | unsigned int num_relocs; | |
214 | struct host1x_job_unpin_data *unpins; | |
215 | unsigned int num_unpins; | |
216 | ||
217 | dma_addr_t *addr_phys; | |
218 | dma_addr_t *gather_addr_phys; | |
219 | dma_addr_t *reloc_addr_phys; | |
220 | ||
221 | /* Sync point id, number of increments and end related to the submit */ | |
222 | u32 syncpt_id; | |
223 | u32 syncpt_incrs; | |
224 | u32 syncpt_end; | |
225 | ||
226 | /* Maximum time to wait for this job */ | |
227 | unsigned int timeout; | |
228 | ||
229 | /* Index and number of slots used in the push buffer */ | |
230 | unsigned int first_get; | |
231 | unsigned int num_slots; | |
232 | ||
233 | /* Copy of gathers */ | |
234 | size_t gather_copy_size; | |
235 | dma_addr_t gather_copy; | |
236 | u8 *gather_copy_mapped; | |
237 | ||
238 | /* Check if register is marked as an address reg */ | |
a2b78b0d | 239 | int (*is_addr_reg)(struct device *dev, u32 class, u32 reg); |
35d747a8 | 240 | |
0f563a4b DO |
241 | /* Check if class belongs to the unit */ |
242 | int (*is_valid_class)(u32 class); | |
243 | ||
35d747a8 TR |
244 | /* Request a SETCLASS to this class */ |
245 | u32 class; | |
246 | ||
247 | /* Add a channel wait for previous ops to complete */ | |
248 | bool serialize; | |
249 | }; | |
250 | ||
251 | struct host1x_job *host1x_job_alloc(struct host1x_channel *ch, | |
24c94e16 | 252 | u32 num_cmdbufs, u32 num_relocs); |
35d747a8 TR |
253 | void host1x_job_add_gather(struct host1x_job *job, struct host1x_bo *mem_id, |
254 | u32 words, u32 offset); | |
255 | struct host1x_job *host1x_job_get(struct host1x_job *job); | |
256 | void host1x_job_put(struct host1x_job *job); | |
257 | int host1x_job_pin(struct host1x_job *job, struct device *dev); | |
258 | void host1x_job_unpin(struct host1x_job *job); | |
259 | ||
776dc384 TR |
260 | /* |
261 | * subdevice probe infrastructure | |
262 | */ | |
263 | ||
264 | struct host1x_device; | |
265 | ||
466749f1 TR |
266 | /** |
267 | * struct host1x_driver - host1x logical device driver | |
268 | * @driver: core driver | |
269 | * @subdevs: table of OF device IDs matching subdevices for this driver | |
270 | * @list: list node for the driver | |
271 | * @probe: called when the host1x logical device is probed | |
272 | * @remove: called when the host1x logical device is removed | |
273 | * @shutdown: called when the host1x logical device is shut down | |
274 | */ | |
776dc384 | 275 | struct host1x_driver { |
f4c5cf88 TR |
276 | struct device_driver driver; |
277 | ||
776dc384 TR |
278 | const struct of_device_id *subdevs; |
279 | struct list_head list; | |
776dc384 TR |
280 | |
281 | int (*probe)(struct host1x_device *device); | |
282 | int (*remove)(struct host1x_device *device); | |
f4c5cf88 | 283 | void (*shutdown)(struct host1x_device *device); |
776dc384 TR |
284 | }; |
285 | ||
f4c5cf88 TR |
286 | static inline struct host1x_driver * |
287 | to_host1x_driver(struct device_driver *driver) | |
288 | { | |
289 | return container_of(driver, struct host1x_driver, driver); | |
290 | } | |
291 | ||
292 | int host1x_driver_register_full(struct host1x_driver *driver, | |
293 | struct module *owner); | |
776dc384 TR |
294 | void host1x_driver_unregister(struct host1x_driver *driver); |
295 | ||
f4c5cf88 TR |
296 | #define host1x_driver_register(driver) \ |
297 | host1x_driver_register_full(driver, THIS_MODULE) | |
298 | ||
776dc384 TR |
299 | struct host1x_device { |
300 | struct host1x_driver *driver; | |
301 | struct list_head list; | |
302 | struct device dev; | |
303 | ||
304 | struct mutex subdevs_lock; | |
305 | struct list_head subdevs; | |
306 | struct list_head active; | |
307 | ||
308 | struct mutex clients_lock; | |
309 | struct list_head clients; | |
536e1715 | 310 | |
f4c5cf88 | 311 | bool registered; |
776dc384 TR |
312 | }; |
313 | ||
314 | static inline struct host1x_device *to_host1x_device(struct device *dev) | |
315 | { | |
316 | return container_of(dev, struct host1x_device, dev); | |
317 | } | |
318 | ||
319 | int host1x_device_init(struct host1x_device *device); | |
320 | int host1x_device_exit(struct host1x_device *device); | |
321 | ||
322 | int host1x_client_register(struct host1x_client *client); | |
323 | int host1x_client_unregister(struct host1x_client *client); | |
324 | ||
4de6a2d6 TR |
325 | struct tegra_mipi_device; |
326 | ||
327 | struct tegra_mipi_device *tegra_mipi_request(struct device *device); | |
328 | void tegra_mipi_free(struct tegra_mipi_device *device); | |
87904c3e TR |
329 | int tegra_mipi_enable(struct tegra_mipi_device *device); |
330 | int tegra_mipi_disable(struct tegra_mipi_device *device); | |
4de6a2d6 TR |
331 | int tegra_mipi_calibrate(struct tegra_mipi_device *device); |
332 | ||
6579324a | 333 | #endif |