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_syncpt_base;
31struct host1x_channel;
32struct host1x_cdma;
33struct host1x_job;
34struct push_buffer;
35struct output;
36struct dentry;
37
38struct 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
44struct 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, u32 syncpt_id);
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
56struct host1x_pushbuffer_ops {
57	void (*init)(struct push_buffer *pb);
58};
59
60struct 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
72struct 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
81struct 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, u32 id, u32 thresh);
86	void (*enable_syncpt_intr)(struct host1x *host, u32 id);
87	void (*disable_syncpt_intr)(struct host1x *host, u32 id);
88	void (*disable_all_syncpt_intrs)(struct host1x *host);
89	int (*free_syncpt_irq)(struct host1x *host);
90};
91
92struct host1x_info {
93	int	nb_channels;		/* host1x: num channels supported */
94	int	nb_pts;			/* host1x: num syncpoints supported */
95	int	nb_bases;		/* host1x: num syncpoints supported */
96	int	nb_mlocks;		/* host1x: number of mlocks */
97	int	(*init)(struct host1x *); /* initialize per SoC ops */
98	int	sync_offset;
99};
100
101struct host1x {
102	const struct host1x_info *info;
103
104	void __iomem *regs;
105	struct host1x_syncpt *syncpt;
106	struct host1x_syncpt_base *bases;
107	struct device *dev;
108	struct clk *clk;
109
110	struct mutex intr_mutex;
111	struct workqueue_struct *intr_wq;
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
136void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
137u32 host1x_sync_readl(struct host1x *host1x, u32 r);
138void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
139u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
140
141static inline void host1x_hw_syncpt_restore(struct host1x *host,
142					    struct host1x_syncpt *sp)
143{
144	host->syncpt_op->restore(sp);
145}
146
147static 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
153static 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
159static inline u32 host1x_hw_syncpt_load(struct host1x *host,
160					struct host1x_syncpt *sp)
161{
162	return host->syncpt_op->load(sp);
163}
164
165static 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
171static 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
178static 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
184static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
185						       u32 id, u32 thresh)
186{
187	host->intr_op->set_syncpt_threshold(host, id, thresh);
188}
189
190static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
191						     u32 id)
192{
193	host->intr_op->enable_syncpt_intr(host, id);
194}
195
196static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
197						      u32 id)
198{
199	host->intr_op->disable_syncpt_intr(host, id);
200}
201
202static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
203{
204	host->intr_op->disable_all_syncpt_intrs(host);
205}
206
207static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
208{
209	return host->intr_op->free_syncpt_irq(host);
210}
211
212static inline int host1x_hw_channel_init(struct host1x *host,
213					 struct host1x_channel *channel,
214					 int chid)
215{
216	return host->channel_op->init(channel, host, chid);
217}
218
219static inline int host1x_hw_channel_submit(struct host1x *host,
220					   struct host1x_job *job)
221{
222	return host->channel_op->submit(job);
223}
224
225static inline void host1x_hw_cdma_start(struct host1x *host,
226					struct host1x_cdma *cdma)
227{
228	host->cdma_op->start(cdma);
229}
230
231static inline void host1x_hw_cdma_stop(struct host1x *host,
232				       struct host1x_cdma *cdma)
233{
234	host->cdma_op->stop(cdma);
235}
236
237static inline void host1x_hw_cdma_flush(struct host1x *host,
238					struct host1x_cdma *cdma)
239{
240	host->cdma_op->flush(cdma);
241}
242
243static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
244					      struct host1x_cdma *cdma,
245					      u32 syncpt_id)
246{
247	return host->cdma_op->timeout_init(cdma, syncpt_id);
248}
249
250static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
251						  struct host1x_cdma *cdma)
252{
253	host->cdma_op->timeout_destroy(cdma);
254}
255
256static inline void host1x_hw_cdma_freeze(struct host1x *host,
257					 struct host1x_cdma *cdma)
258{
259	host->cdma_op->freeze(cdma);
260}
261
262static inline void host1x_hw_cdma_resume(struct host1x *host,
263					 struct host1x_cdma *cdma, u32 getptr)
264{
265	host->cdma_op->resume(cdma, getptr);
266}
267
268static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
269						   struct host1x_cdma *cdma,
270						   u32 getptr,
271						   u32 syncpt_incrs,
272						   u32 syncval, u32 nr_slots)
273{
274	host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
275					nr_slots);
276}
277
278static inline void host1x_hw_pushbuffer_init(struct host1x *host,
279					     struct push_buffer *pb)
280{
281	host->cdma_pb_op->init(pb);
282}
283
284static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
285{
286	if (host->debug_op && host->debug_op->debug_init)
287		host->debug_op->debug_init(de);
288}
289
290static inline void host1x_hw_show_channel_cdma(struct host1x *host,
291					       struct host1x_channel *channel,
292					       struct output *o)
293{
294	host->debug_op->show_channel_cdma(host, channel, o);
295}
296
297static inline void host1x_hw_show_channel_fifo(struct host1x *host,
298					       struct host1x_channel *channel,
299					       struct output *o)
300{
301	host->debug_op->show_channel_fifo(host, channel, o);
302}
303
304static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
305{
306	host->debug_op->show_mlocks(host, o);
307}
308
309extern struct platform_driver tegra_mipi_driver;
310
311#endif
312