Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
29struct host1x_syncpt;
30struct host1x_channel;
31struct host1x_cdma;
32struct host1x_job;
33struct push_buffer;
34struct output;
35struct dentry;
36
37struct host1x_channel_ops {
38 int (*init)(struct host1x_channel *channel, struct host1x *host,
39 unsigned int id);
40 int (*submit)(struct host1x_job *job);
41};
42
43struct host1x_cdma_ops {
44 void (*start)(struct host1x_cdma *cdma);
45 void (*stop)(struct host1x_cdma *cdma);
46 void (*flush)(struct host1x_cdma *cdma);
47 int (*timeout_init)(struct host1x_cdma *cdma, u32 syncpt_id);
48 void (*timeout_destroy)(struct host1x_cdma *cdma);
49 void (*freeze)(struct host1x_cdma *cdma);
50 void (*resume)(struct host1x_cdma *cdma, u32 getptr);
51 void (*timeout_cpu_incr)(struct host1x_cdma *cdma, u32 getptr,
52 u32 syncpt_incrs, u32 syncval, u32 nr_slots);
53};
54
55struct host1x_pushbuffer_ops {
56 void (*init)(struct push_buffer *pb);
57};
58
59struct host1x_debug_ops {
60 void (*debug_init)(struct dentry *de);
61 void (*show_channel_cdma)(struct host1x *host,
62 struct host1x_channel *ch,
63 struct output *o);
64 void (*show_channel_fifo)(struct host1x *host,
65 struct host1x_channel *ch,
66 struct output *o);
67 void (*show_mlocks)(struct host1x *host, struct output *output);
68
69};
70
71struct host1x_syncpt_ops {
72 void (*restore)(struct host1x_syncpt *syncpt);
73 void (*restore_wait_base)(struct host1x_syncpt *syncpt);
74 void (*load_wait_base)(struct host1x_syncpt *syncpt);
75 u32 (*load)(struct host1x_syncpt *syncpt);
76 int (*cpu_incr)(struct host1x_syncpt *syncpt);
77 int (*patch_wait)(struct host1x_syncpt *syncpt, void *patch_addr);
78};
79
80struct host1x_intr_ops {
81 int (*init_host_sync)(struct host1x *host, u32 cpm,
82 void (*syncpt_thresh_work)(struct work_struct *work));
83 void (*set_syncpt_threshold)(
84 struct host1x *host, u32 id, u32 thresh);
85 void (*enable_syncpt_intr)(struct host1x *host, u32 id);
86 void (*disable_syncpt_intr)(struct host1x *host, u32 id);
87 void (*disable_all_syncpt_intrs)(struct host1x *host);
88 int (*free_syncpt_irq)(struct host1x *host);
89};
90
91struct host1x_info {
92 int nb_channels; /* host1x: num channels supported */
93 int nb_pts; /* host1x: num syncpoints supported */
94 int nb_bases; /* host1x: num syncpoints supported */
95 int nb_mlocks; /* host1x: number of mlocks */
96 int (*init)(struct host1x *); /* initialize per SoC ops */
97 int sync_offset;
98};
99
100struct host1x {
101 const struct host1x_info *info;
102
103 void __iomem *regs;
104 struct host1x_syncpt *syncpt;
105 struct device *dev;
106 struct clk *clk;
107
108 struct mutex intr_mutex;
109 struct workqueue_struct *intr_wq;
110 int intr_syncpt_irq;
111
112 const struct host1x_syncpt_ops *syncpt_op;
113 const struct host1x_intr_ops *intr_op;
114 const struct host1x_channel_ops *channel_op;
115 const struct host1x_cdma_ops *cdma_op;
116 const struct host1x_pushbuffer_ops *cdma_pb_op;
117 const struct host1x_debug_ops *debug_op;
118
119 struct host1x_syncpt *nop_sp;
120
121 struct mutex chlist_mutex;
122 struct host1x_channel chlist;
123 unsigned long allocated_channels;
124 unsigned int num_allocated_channels;
125
126 struct dentry *debugfs;
127
128 void *drm_data;
129};
130
131void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
132u32 host1x_sync_readl(struct host1x *host1x, u32 r);
133void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
134u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
135
136static inline void host1x_hw_syncpt_restore(struct host1x *host,
137 struct host1x_syncpt *sp)
138{
139 host->syncpt_op->restore(sp);
140}
141
142static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
143 struct host1x_syncpt *sp)
144{
145 host->syncpt_op->restore_wait_base(sp);
146}
147
148static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
149 struct host1x_syncpt *sp)
150{
151 host->syncpt_op->load_wait_base(sp);
152}
153
154static inline u32 host1x_hw_syncpt_load(struct host1x *host,
155 struct host1x_syncpt *sp)
156{
157 return host->syncpt_op->load(sp);
158}
159
160static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
161 struct host1x_syncpt *sp)
162{
163 return host->syncpt_op->cpu_incr(sp);
164}
165
166static inline int host1x_hw_syncpt_patch_wait(struct host1x *host,
167 struct host1x_syncpt *sp,
168 void *patch_addr)
169{
170 return host->syncpt_op->patch_wait(sp, patch_addr);
171}
172
173static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm,
174 void (*syncpt_thresh_work)(struct work_struct *))
175{
176 return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work);
177}
178
179static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
180 u32 id, u32 thresh)
181{
182 host->intr_op->set_syncpt_threshold(host, id, thresh);
183}
184
185static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
186 u32 id)
187{
188 host->intr_op->enable_syncpt_intr(host, id);
189}
190
191static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
192 u32 id)
193{
194 host->intr_op->disable_syncpt_intr(host, id);
195}
196
197static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
198{
199 host->intr_op->disable_all_syncpt_intrs(host);
200}
201
202static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
203{
204 return host->intr_op->free_syncpt_irq(host);
205}
206
207static inline int host1x_hw_channel_init(struct host1x *host,
208 struct host1x_channel *channel,
209 int chid)
210{
211 return host->channel_op->init(channel, host, chid);
212}
213
214static inline int host1x_hw_channel_submit(struct host1x *host,
215 struct host1x_job *job)
216{
217 return host->channel_op->submit(job);
218}
219
220static inline void host1x_hw_cdma_start(struct host1x *host,
221 struct host1x_cdma *cdma)
222{
223 host->cdma_op->start(cdma);
224}
225
226static inline void host1x_hw_cdma_stop(struct host1x *host,
227 struct host1x_cdma *cdma)
228{
229 host->cdma_op->stop(cdma);
230}
231
232static inline void host1x_hw_cdma_flush(struct host1x *host,
233 struct host1x_cdma *cdma)
234{
235 host->cdma_op->flush(cdma);
236}
237
238static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
239 struct host1x_cdma *cdma,
240 u32 syncpt_id)
241{
242 return host->cdma_op->timeout_init(cdma, syncpt_id);
243}
244
245static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
246 struct host1x_cdma *cdma)
247{
248 host->cdma_op->timeout_destroy(cdma);
249}
250
251static inline void host1x_hw_cdma_freeze(struct host1x *host,
252 struct host1x_cdma *cdma)
253{
254 host->cdma_op->freeze(cdma);
255}
256
257static inline void host1x_hw_cdma_resume(struct host1x *host,
258 struct host1x_cdma *cdma, u32 getptr)
259{
260 host->cdma_op->resume(cdma, getptr);
261}
262
263static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
264 struct host1x_cdma *cdma,
265 u32 getptr,
266 u32 syncpt_incrs,
267 u32 syncval, u32 nr_slots)
268{
269 host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
270 nr_slots);
271}
272
273static inline void host1x_hw_pushbuffer_init(struct host1x *host,
274 struct push_buffer *pb)
275{
276 host->cdma_pb_op->init(pb);
277}
278
279static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
280{
281 if (host->debug_op && host->debug_op->debug_init)
282 host->debug_op->debug_init(de);
283}
284
285static inline void host1x_hw_show_channel_cdma(struct host1x *host,
286 struct host1x_channel *channel,
287 struct output *o)
288{
289 host->debug_op->show_channel_cdma(host, channel, o);
290}
291
292static inline void host1x_hw_show_channel_fifo(struct host1x *host,
293 struct host1x_channel *channel,
294 struct output *o)
295{
296 host->debug_op->show_channel_fifo(host, channel, o);
297}
298
299static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
300{
301 host->debug_op->show_mlocks(host, o);
302}
303
304extern struct platform_driver tegra_hdmi_driver;
305extern struct platform_driver tegra_dc_driver;
306extern struct platform_driver tegra_gr2d_driver;
307
308#endif