1 /*
2 * Copyright (c) 2012-2013, NVIDIA Corporation.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16
17 #ifndef HOST1X_DEV_H
18 #define HOST1X_DEV_H
19
20 #include <linux/platform_device.h>
21 #include <linux/device.h>
22
23 #include "channel.h"
24 #include "syncpt.h"
25 #include "intr.h"
26 #include "cdma.h"
27 #include "job.h"
28
29 struct host1x_syncpt;
30 struct host1x_syncpt_base;
31 struct host1x_channel;
32 struct host1x_cdma;
33 struct host1x_job;
34 struct push_buffer;
35 struct output;
36 struct dentry;
37
38 struct host1x_channel_ops {
39 int (*init)(struct host1x_channel *channel, struct host1x *host,
40 unsigned int id);
41 int (*submit)(struct host1x_job *job);
42 };
43
44 struct host1x_cdma_ops {
45 void (*start)(struct host1x_cdma *cdma);
46 void (*stop)(struct host1x_cdma *cdma);
47 void (*flush)(struct host1x_cdma *cdma);
48 int (*timeout_init)(struct host1x_cdma *cdma, unsigned int syncpt);
49 void (*timeout_destroy)(struct host1x_cdma *cdma);
50 void (*freeze)(struct host1x_cdma *cdma);
51 void (*resume)(struct host1x_cdma *cdma, u32 getptr);
52 void (*timeout_cpu_incr)(struct host1x_cdma *cdma, u32 getptr,
53 u32 syncpt_incrs, u32 syncval, u32 nr_slots);
54 };
55
56 struct host1x_pushbuffer_ops {
57 void (*init)(struct push_buffer *pb);
58 };
59
60 struct host1x_debug_ops {
61 void (*debug_init)(struct dentry *de);
62 void (*show_channel_cdma)(struct host1x *host,
63 struct host1x_channel *ch,
64 struct output *o);
65 void (*show_channel_fifo)(struct host1x *host,
66 struct host1x_channel *ch,
67 struct output *o);
68 void (*show_mlocks)(struct host1x *host, struct output *output);
69
70 };
71
72 struct host1x_syncpt_ops {
73 void (*restore)(struct host1x_syncpt *syncpt);
74 void (*restore_wait_base)(struct host1x_syncpt *syncpt);
75 void (*load_wait_base)(struct host1x_syncpt *syncpt);
76 u32 (*load)(struct host1x_syncpt *syncpt);
77 int (*cpu_incr)(struct host1x_syncpt *syncpt);
78 int (*patch_wait)(struct host1x_syncpt *syncpt, void *patch_addr);
79 };
80
81 struct host1x_intr_ops {
82 int (*init_host_sync)(struct host1x *host, u32 cpm,
83 void (*syncpt_thresh_work)(struct work_struct *work));
84 void (*set_syncpt_threshold)(
85 struct host1x *host, unsigned int id, u32 thresh);
86 void (*enable_syncpt_intr)(struct host1x *host, unsigned int id);
87 void (*disable_syncpt_intr)(struct host1x *host, unsigned int id);
88 void (*disable_all_syncpt_intrs)(struct host1x *host);
89 int (*free_syncpt_irq)(struct host1x *host);
90 };
91
92 struct host1x_info {
93 unsigned int nb_channels; /* host1x: number of channels supported */
94 unsigned int nb_pts; /* host1x: number of syncpoints supported */
95 unsigned int nb_bases; /* host1x: number of syncpoint bases supported */
96 unsigned int nb_mlocks; /* host1x: number of mlocks supported */
97 int (*init)(struct host1x *host1x); /* initialize per SoC ops */
98 unsigned int sync_offset; /* offset of syncpoint registers */
99 u64 dma_mask; /* mask of addressable memory */
100 };
101
102 struct host1x {
103 const struct host1x_info *info;
104
105 void __iomem *regs;
106 struct host1x_syncpt *syncpt;
107 struct host1x_syncpt_base *bases;
108 struct device *dev;
109 struct clk *clk;
110
111 struct mutex intr_mutex;
112 int intr_syncpt_irq;
113
114 const struct host1x_syncpt_ops *syncpt_op;
115 const struct host1x_intr_ops *intr_op;
116 const struct host1x_channel_ops *channel_op;
117 const struct host1x_cdma_ops *cdma_op;
118 const struct host1x_pushbuffer_ops *cdma_pb_op;
119 const struct host1x_debug_ops *debug_op;
120
121 struct host1x_syncpt *nop_sp;
122
123 struct mutex chlist_mutex;
124 struct host1x_channel chlist;
125 unsigned long allocated_channels;
126 unsigned int num_allocated_channels;
127
128 struct dentry *debugfs;
129
130 struct mutex devices_lock;
131 struct list_head devices;
132
133 struct list_head list;
134 };
135
136 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
137 u32 host1x_sync_readl(struct host1x *host1x, u32 r);
138 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
139 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
140
host1x_hw_syncpt_restore(struct host1x * host,struct host1x_syncpt * sp)141 static inline void host1x_hw_syncpt_restore(struct host1x *host,
142 struct host1x_syncpt *sp)
143 {
144 host->syncpt_op->restore(sp);
145 }
146
host1x_hw_syncpt_restore_wait_base(struct host1x * host,struct host1x_syncpt * sp)147 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
148 struct host1x_syncpt *sp)
149 {
150 host->syncpt_op->restore_wait_base(sp);
151 }
152
host1x_hw_syncpt_load_wait_base(struct host1x * host,struct host1x_syncpt * sp)153 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
154 struct host1x_syncpt *sp)
155 {
156 host->syncpt_op->load_wait_base(sp);
157 }
158
host1x_hw_syncpt_load(struct host1x * host,struct host1x_syncpt * sp)159 static inline u32 host1x_hw_syncpt_load(struct host1x *host,
160 struct host1x_syncpt *sp)
161 {
162 return host->syncpt_op->load(sp);
163 }
164
host1x_hw_syncpt_cpu_incr(struct host1x * host,struct host1x_syncpt * sp)165 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
166 struct host1x_syncpt *sp)
167 {
168 return host->syncpt_op->cpu_incr(sp);
169 }
170
host1x_hw_syncpt_patch_wait(struct host1x * host,struct host1x_syncpt * sp,void * patch_addr)171 static inline int host1x_hw_syncpt_patch_wait(struct host1x *host,
172 struct host1x_syncpt *sp,
173 void *patch_addr)
174 {
175 return host->syncpt_op->patch_wait(sp, patch_addr);
176 }
177
host1x_hw_intr_init_host_sync(struct host1x * host,u32 cpm,void (* syncpt_thresh_work)(struct work_struct *))178 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm,
179 void (*syncpt_thresh_work)(struct work_struct *))
180 {
181 return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work);
182 }
183
host1x_hw_intr_set_syncpt_threshold(struct host1x * host,unsigned int id,u32 thresh)184 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
185 unsigned int id,
186 u32 thresh)
187 {
188 host->intr_op->set_syncpt_threshold(host, id, thresh);
189 }
190
host1x_hw_intr_enable_syncpt_intr(struct host1x * host,unsigned int id)191 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
192 unsigned int id)
193 {
194 host->intr_op->enable_syncpt_intr(host, id);
195 }
196
host1x_hw_intr_disable_syncpt_intr(struct host1x * host,unsigned int id)197 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
198 unsigned int id)
199 {
200 host->intr_op->disable_syncpt_intr(host, id);
201 }
202
host1x_hw_intr_disable_all_syncpt_intrs(struct host1x * host)203 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
204 {
205 host->intr_op->disable_all_syncpt_intrs(host);
206 }
207
host1x_hw_intr_free_syncpt_irq(struct host1x * host)208 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
209 {
210 return host->intr_op->free_syncpt_irq(host);
211 }
212
host1x_hw_channel_init(struct host1x * host,struct host1x_channel * channel,unsigned int id)213 static inline int host1x_hw_channel_init(struct host1x *host,
214 struct host1x_channel *channel,
215 unsigned int id)
216 {
217 return host->channel_op->init(channel, host, id);
218 }
219
host1x_hw_channel_submit(struct host1x * host,struct host1x_job * job)220 static inline int host1x_hw_channel_submit(struct host1x *host,
221 struct host1x_job *job)
222 {
223 return host->channel_op->submit(job);
224 }
225
host1x_hw_cdma_start(struct host1x * host,struct host1x_cdma * cdma)226 static inline void host1x_hw_cdma_start(struct host1x *host,
227 struct host1x_cdma *cdma)
228 {
229 host->cdma_op->start(cdma);
230 }
231
host1x_hw_cdma_stop(struct host1x * host,struct host1x_cdma * cdma)232 static inline void host1x_hw_cdma_stop(struct host1x *host,
233 struct host1x_cdma *cdma)
234 {
235 host->cdma_op->stop(cdma);
236 }
237
host1x_hw_cdma_flush(struct host1x * host,struct host1x_cdma * cdma)238 static inline void host1x_hw_cdma_flush(struct host1x *host,
239 struct host1x_cdma *cdma)
240 {
241 host->cdma_op->flush(cdma);
242 }
243
host1x_hw_cdma_timeout_init(struct host1x * host,struct host1x_cdma * cdma,unsigned int syncpt)244 static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
245 struct host1x_cdma *cdma,
246 unsigned int syncpt)
247 {
248 return host->cdma_op->timeout_init(cdma, syncpt);
249 }
250
host1x_hw_cdma_timeout_destroy(struct host1x * host,struct host1x_cdma * cdma)251 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
252 struct host1x_cdma *cdma)
253 {
254 host->cdma_op->timeout_destroy(cdma);
255 }
256
host1x_hw_cdma_freeze(struct host1x * host,struct host1x_cdma * cdma)257 static inline void host1x_hw_cdma_freeze(struct host1x *host,
258 struct host1x_cdma *cdma)
259 {
260 host->cdma_op->freeze(cdma);
261 }
262
host1x_hw_cdma_resume(struct host1x * host,struct host1x_cdma * cdma,u32 getptr)263 static inline void host1x_hw_cdma_resume(struct host1x *host,
264 struct host1x_cdma *cdma, u32 getptr)
265 {
266 host->cdma_op->resume(cdma, getptr);
267 }
268
host1x_hw_cdma_timeout_cpu_incr(struct host1x * host,struct host1x_cdma * cdma,u32 getptr,u32 syncpt_incrs,u32 syncval,u32 nr_slots)269 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
270 struct host1x_cdma *cdma,
271 u32 getptr,
272 u32 syncpt_incrs,
273 u32 syncval, u32 nr_slots)
274 {
275 host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
276 nr_slots);
277 }
278
host1x_hw_pushbuffer_init(struct host1x * host,struct push_buffer * pb)279 static inline void host1x_hw_pushbuffer_init(struct host1x *host,
280 struct push_buffer *pb)
281 {
282 host->cdma_pb_op->init(pb);
283 }
284
host1x_hw_debug_init(struct host1x * host,struct dentry * de)285 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
286 {
287 if (host->debug_op && host->debug_op->debug_init)
288 host->debug_op->debug_init(de);
289 }
290
host1x_hw_show_channel_cdma(struct host1x * host,struct host1x_channel * channel,struct output * o)291 static inline void host1x_hw_show_channel_cdma(struct host1x *host,
292 struct host1x_channel *channel,
293 struct output *o)
294 {
295 host->debug_op->show_channel_cdma(host, channel, o);
296 }
297
host1x_hw_show_channel_fifo(struct host1x * host,struct host1x_channel * channel,struct output * o)298 static inline void host1x_hw_show_channel_fifo(struct host1x *host,
299 struct host1x_channel *channel,
300 struct output *o)
301 {
302 host->debug_op->show_channel_fifo(host, channel, o);
303 }
304
host1x_hw_show_mlocks(struct host1x * host,struct output * o)305 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
306 {
307 host->debug_op->show_mlocks(host, o);
308 }
309
310 extern struct platform_driver tegra_mipi_driver;
311
312 #endif
313