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git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/linux/host1x.h
2 * Copyright (c) 2009-2013, NVIDIA Corporation. All rights reserved.
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.
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
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.
19 #ifndef __LINUX_HOST1X_H
20 #define __LINUX_HOST1X_H
22 #include <linux/device.h>
23 #include <linux/types.h>
26 HOST1X_CLASS_HOST1X
= 0x1,
27 HOST1X_CLASS_GR2D
= 0x51,
28 HOST1X_CLASS_GR2D_SB
= 0x52,
29 HOST1X_CLASS_GR3D
= 0x60,
34 struct host1x_client_ops
{
35 int (*init
)(struct host1x_client
*client
);
36 int (*exit
)(struct host1x_client
*client
);
39 struct host1x_client
{
40 struct list_head list
;
41 struct device
*parent
;
44 const struct host1x_client_ops
*ops
;
46 enum host1x_class
class;
47 struct host1x_channel
*channel
;
49 struct host1x_syncpt
**syncpts
;
50 unsigned int num_syncpts
;
54 * host1x buffer objects
60 struct host1x_bo_ops
{
61 struct host1x_bo
*(*get
)(struct host1x_bo
*bo
);
62 void (*put
)(struct host1x_bo
*bo
);
63 dma_addr_t (*pin
)(struct host1x_bo
*bo
, struct sg_table
**sgt
);
64 void (*unpin
)(struct host1x_bo
*bo
, struct sg_table
*sgt
);
65 void *(*mmap
)(struct host1x_bo
*bo
);
66 void (*munmap
)(struct host1x_bo
*bo
, void *addr
);
67 void *(*kmap
)(struct host1x_bo
*bo
, unsigned int pagenum
);
68 void (*kunmap
)(struct host1x_bo
*bo
, unsigned int pagenum
, void *addr
);
72 const struct host1x_bo_ops
*ops
;
75 static inline void host1x_bo_init(struct host1x_bo
*bo
,
76 const struct host1x_bo_ops
*ops
)
81 static inline struct host1x_bo
*host1x_bo_get(struct host1x_bo
*bo
)
83 return bo
->ops
->get(bo
);
86 static inline void host1x_bo_put(struct host1x_bo
*bo
)
91 static inline dma_addr_t
host1x_bo_pin(struct host1x_bo
*bo
,
92 struct sg_table
**sgt
)
94 return bo
->ops
->pin(bo
, sgt
);
97 static inline void host1x_bo_unpin(struct host1x_bo
*bo
, struct sg_table
*sgt
)
99 bo
->ops
->unpin(bo
, sgt
);
102 static inline void *host1x_bo_mmap(struct host1x_bo
*bo
)
104 return bo
->ops
->mmap(bo
);
107 static inline void host1x_bo_munmap(struct host1x_bo
*bo
, void *addr
)
109 bo
->ops
->munmap(bo
, addr
);
112 static inline void *host1x_bo_kmap(struct host1x_bo
*bo
, unsigned int pagenum
)
114 return bo
->ops
->kmap(bo
, pagenum
);
117 static inline void host1x_bo_kunmap(struct host1x_bo
*bo
,
118 unsigned int pagenum
, void *addr
)
120 bo
->ops
->kunmap(bo
, pagenum
, addr
);
127 #define HOST1X_SYNCPT_CLIENT_MANAGED (1 << 0)
128 #define HOST1X_SYNCPT_HAS_BASE (1 << 1)
130 struct host1x_syncpt_base
;
131 struct host1x_syncpt
;
134 struct host1x_syncpt
*host1x_syncpt_get(struct host1x
*host
, u32 id
);
135 u32
host1x_syncpt_id(struct host1x_syncpt
*sp
);
136 u32
host1x_syncpt_read_min(struct host1x_syncpt
*sp
);
137 u32
host1x_syncpt_read_max(struct host1x_syncpt
*sp
);
138 int host1x_syncpt_incr(struct host1x_syncpt
*sp
);
139 int host1x_syncpt_wait(struct host1x_syncpt
*sp
, u32 thresh
, long timeout
,
141 struct host1x_syncpt
*host1x_syncpt_request(struct device
*dev
,
142 unsigned long flags
);
143 void host1x_syncpt_free(struct host1x_syncpt
*sp
);
145 struct host1x_syncpt_base
*host1x_syncpt_get_base(struct host1x_syncpt
*sp
);
146 u32
host1x_syncpt_base_id(struct host1x_syncpt_base
*base
);
152 struct host1x_channel
;
155 struct host1x_channel
*host1x_channel_request(struct device
*dev
);
156 void host1x_channel_free(struct host1x_channel
*channel
);
157 struct host1x_channel
*host1x_channel_get(struct host1x_channel
*channel
);
158 void host1x_channel_put(struct host1x_channel
*channel
);
159 int host1x_job_submit(struct host1x_job
*job
);
165 struct host1x_reloc
{
166 struct host1x_bo
*cmdbuf
;
168 struct host1x_bo
*target
;
175 /* When refcount goes to zero, job can be freed */
179 struct list_head list
;
181 /* Channel where job is submitted to */
182 struct host1x_channel
*channel
;
186 /* Gathers and their memory */
187 struct host1x_job_gather
*gathers
;
188 unsigned int num_gathers
;
190 /* Wait checks to be processed at submit time */
191 struct host1x_waitchk
*waitchk
;
192 unsigned int num_waitchk
;
195 /* Array of handles to be pinned & unpinned */
196 struct host1x_reloc
*relocarray
;
197 unsigned int num_relocs
;
198 struct host1x_job_unpin_data
*unpins
;
199 unsigned int num_unpins
;
201 dma_addr_t
*addr_phys
;
202 dma_addr_t
*gather_addr_phys
;
203 dma_addr_t
*reloc_addr_phys
;
205 /* Sync point id, number of increments and end related to the submit */
210 /* Maximum time to wait for this job */
211 unsigned int timeout
;
213 /* Index and number of slots used in the push buffer */
214 unsigned int first_get
;
215 unsigned int num_slots
;
217 /* Copy of gathers */
218 size_t gather_copy_size
;
219 dma_addr_t gather_copy
;
220 u8
*gather_copy_mapped
;
222 /* Check if register is marked as an address reg */
223 int (*is_addr_reg
)(struct device
*dev
, u32 reg
, u32
class);
225 /* Request a SETCLASS to this class */
228 /* Add a channel wait for previous ops to complete */
232 struct host1x_job
*host1x_job_alloc(struct host1x_channel
*ch
,
233 u32 num_cmdbufs
, u32 num_relocs
,
235 void host1x_job_add_gather(struct host1x_job
*job
, struct host1x_bo
*mem_id
,
236 u32 words
, u32 offset
);
237 struct host1x_job
*host1x_job_get(struct host1x_job
*job
);
238 void host1x_job_put(struct host1x_job
*job
);
239 int host1x_job_pin(struct host1x_job
*job
, struct device
*dev
);
240 void host1x_job_unpin(struct host1x_job
*job
);
243 * subdevice probe infrastructure
246 struct host1x_device
;
248 struct host1x_driver
{
249 const struct of_device_id
*subdevs
;
250 struct list_head list
;
253 int (*probe
)(struct host1x_device
*device
);
254 int (*remove
)(struct host1x_device
*device
);
257 int host1x_driver_register(struct host1x_driver
*driver
);
258 void host1x_driver_unregister(struct host1x_driver
*driver
);
260 struct host1x_device
{
261 struct host1x_driver
*driver
;
262 struct list_head list
;
265 struct mutex subdevs_lock
;
266 struct list_head subdevs
;
267 struct list_head active
;
269 struct mutex clients_lock
;
270 struct list_head clients
;
273 static inline struct host1x_device
*to_host1x_device(struct device
*dev
)
275 return container_of(dev
, struct host1x_device
, dev
);
278 int host1x_device_init(struct host1x_device
*device
);
279 int host1x_device_exit(struct host1x_device
*device
);
281 int host1x_client_register(struct host1x_client
*client
);
282 int host1x_client_unregister(struct host1x_client
*client
);
284 struct tegra_mipi_device
;
286 struct tegra_mipi_device
*tegra_mipi_request(struct device
*device
);
287 void tegra_mipi_free(struct tegra_mipi_device
*device
);
288 int tegra_mipi_calibrate(struct tegra_mipi_device
*device
);