Loading...
Note: File does not exist in v3.1.
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2012-2015, NVIDIA Corporation.
4 */
5
6#ifndef HOST1X_DEV_H
7#define HOST1X_DEV_H
8
9#include <linux/device.h>
10#include <linux/iommu.h>
11#include <linux/iova.h>
12#include <linux/platform_device.h>
13#include <linux/reset.h>
14
15#include "cdma.h"
16#include "channel.h"
17#include "intr.h"
18#include "job.h"
19#include "syncpt.h"
20
21struct host1x_syncpt;
22struct host1x_syncpt_base;
23struct host1x_channel;
24struct host1x_cdma;
25struct host1x_job;
26struct push_buffer;
27struct output;
28struct dentry;
29
30struct host1x_channel_ops {
31 int (*init)(struct host1x_channel *channel, struct host1x *host,
32 unsigned int id);
33 int (*submit)(struct host1x_job *job);
34};
35
36struct host1x_cdma_ops {
37 void (*start)(struct host1x_cdma *cdma);
38 void (*stop)(struct host1x_cdma *cdma);
39 void (*flush)(struct host1x_cdma *cdma);
40 int (*timeout_init)(struct host1x_cdma *cdma);
41 void (*timeout_destroy)(struct host1x_cdma *cdma);
42 void (*freeze)(struct host1x_cdma *cdma);
43 void (*resume)(struct host1x_cdma *cdma, u32 getptr);
44 void (*timeout_cpu_incr)(struct host1x_cdma *cdma, u32 getptr,
45 u32 syncpt_incrs, u32 syncval, u32 nr_slots);
46};
47
48struct host1x_pushbuffer_ops {
49 void (*init)(struct push_buffer *pb);
50};
51
52struct host1x_debug_ops {
53 void (*debug_init)(struct dentry *de);
54 void (*show_channel_cdma)(struct host1x *host,
55 struct host1x_channel *ch,
56 struct output *o);
57 void (*show_channel_fifo)(struct host1x *host,
58 struct host1x_channel *ch,
59 struct output *o);
60 void (*show_mlocks)(struct host1x *host, struct output *output);
61
62};
63
64struct host1x_syncpt_ops {
65 void (*restore)(struct host1x_syncpt *syncpt);
66 void (*restore_wait_base)(struct host1x_syncpt *syncpt);
67 void (*load_wait_base)(struct host1x_syncpt *syncpt);
68 u32 (*load)(struct host1x_syncpt *syncpt);
69 int (*cpu_incr)(struct host1x_syncpt *syncpt);
70 void (*assign_to_channel)(struct host1x_syncpt *syncpt,
71 struct host1x_channel *channel);
72 void (*enable_protection)(struct host1x *host);
73};
74
75struct host1x_intr_ops {
76 int (*init_host_sync)(struct host1x *host, u32 cpm,
77 void (*syncpt_thresh_work)(struct work_struct *work));
78 void (*set_syncpt_threshold)(
79 struct host1x *host, unsigned int id, u32 thresh);
80 void (*enable_syncpt_intr)(struct host1x *host, unsigned int id);
81 void (*disable_syncpt_intr)(struct host1x *host, unsigned int id);
82 void (*disable_all_syncpt_intrs)(struct host1x *host);
83 int (*free_syncpt_irq)(struct host1x *host);
84};
85
86struct host1x_sid_entry {
87 unsigned int base;
88 unsigned int offset;
89 unsigned int limit;
90};
91
92struct 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 bool has_wide_gather; /* supports GATHER_W opcode */
101 bool has_hypervisor; /* has hypervisor registers */
102 unsigned int num_sid_entries;
103 const struct host1x_sid_entry *sid_table;
104 /*
105 * On T20-T148, the boot chain may setup DC to increment syncpoints
106 * 26/27 on VBLANK. As such we cannot use these syncpoints until
107 * the display driver disables VBLANK increments.
108 */
109 bool reserve_vblank_syncpts;
110};
111
112struct host1x {
113 const struct host1x_info *info;
114
115 void __iomem *regs;
116 void __iomem *hv_regs; /* hypervisor region */
117 struct host1x_syncpt *syncpt;
118 struct host1x_syncpt_base *bases;
119 struct device *dev;
120 struct clk *clk;
121 struct reset_control *rst;
122
123 struct iommu_group *group;
124 struct iommu_domain *domain;
125 struct iova_domain iova;
126 dma_addr_t iova_end;
127
128 struct mutex intr_mutex;
129 int intr_syncpt_irq;
130
131 const struct host1x_syncpt_ops *syncpt_op;
132 const struct host1x_intr_ops *intr_op;
133 const struct host1x_channel_ops *channel_op;
134 const struct host1x_cdma_ops *cdma_op;
135 const struct host1x_pushbuffer_ops *cdma_pb_op;
136 const struct host1x_debug_ops *debug_op;
137
138 struct host1x_syncpt *nop_sp;
139
140 struct mutex syncpt_mutex;
141
142 struct host1x_channel_list channel_list;
143
144 struct dentry *debugfs;
145
146 struct mutex devices_lock;
147 struct list_head devices;
148
149 struct list_head list;
150
151 struct device_dma_parameters dma_parms;
152};
153
154void host1x_hypervisor_writel(struct host1x *host1x, u32 r, u32 v);
155u32 host1x_hypervisor_readl(struct host1x *host1x, u32 r);
156void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
157u32 host1x_sync_readl(struct host1x *host1x, u32 r);
158void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
159u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
160
161static inline void host1x_hw_syncpt_restore(struct host1x *host,
162 struct host1x_syncpt *sp)
163{
164 host->syncpt_op->restore(sp);
165}
166
167static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
168 struct host1x_syncpt *sp)
169{
170 host->syncpt_op->restore_wait_base(sp);
171}
172
173static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
174 struct host1x_syncpt *sp)
175{
176 host->syncpt_op->load_wait_base(sp);
177}
178
179static inline u32 host1x_hw_syncpt_load(struct host1x *host,
180 struct host1x_syncpt *sp)
181{
182 return host->syncpt_op->load(sp);
183}
184
185static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
186 struct host1x_syncpt *sp)
187{
188 return host->syncpt_op->cpu_incr(sp);
189}
190
191static inline void host1x_hw_syncpt_assign_to_channel(
192 struct host1x *host, struct host1x_syncpt *sp,
193 struct host1x_channel *ch)
194{
195 return host->syncpt_op->assign_to_channel(sp, ch);
196}
197
198static inline void host1x_hw_syncpt_enable_protection(struct host1x *host)
199{
200 return host->syncpt_op->enable_protection(host);
201}
202
203static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm,
204 void (*syncpt_thresh_work)(struct work_struct *))
205{
206 return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work);
207}
208
209static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
210 unsigned int id,
211 u32 thresh)
212{
213 host->intr_op->set_syncpt_threshold(host, id, thresh);
214}
215
216static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
217 unsigned int id)
218{
219 host->intr_op->enable_syncpt_intr(host, id);
220}
221
222static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
223 unsigned int id)
224{
225 host->intr_op->disable_syncpt_intr(host, id);
226}
227
228static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
229{
230 host->intr_op->disable_all_syncpt_intrs(host);
231}
232
233static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
234{
235 return host->intr_op->free_syncpt_irq(host);
236}
237
238static inline int host1x_hw_channel_init(struct host1x *host,
239 struct host1x_channel *channel,
240 unsigned int id)
241{
242 return host->channel_op->init(channel, host, id);
243}
244
245static inline int host1x_hw_channel_submit(struct host1x *host,
246 struct host1x_job *job)
247{
248 return host->channel_op->submit(job);
249}
250
251static inline void host1x_hw_cdma_start(struct host1x *host,
252 struct host1x_cdma *cdma)
253{
254 host->cdma_op->start(cdma);
255}
256
257static inline void host1x_hw_cdma_stop(struct host1x *host,
258 struct host1x_cdma *cdma)
259{
260 host->cdma_op->stop(cdma);
261}
262
263static inline void host1x_hw_cdma_flush(struct host1x *host,
264 struct host1x_cdma *cdma)
265{
266 host->cdma_op->flush(cdma);
267}
268
269static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
270 struct host1x_cdma *cdma)
271{
272 return host->cdma_op->timeout_init(cdma);
273}
274
275static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
276 struct host1x_cdma *cdma)
277{
278 host->cdma_op->timeout_destroy(cdma);
279}
280
281static inline void host1x_hw_cdma_freeze(struct host1x *host,
282 struct host1x_cdma *cdma)
283{
284 host->cdma_op->freeze(cdma);
285}
286
287static inline void host1x_hw_cdma_resume(struct host1x *host,
288 struct host1x_cdma *cdma, u32 getptr)
289{
290 host->cdma_op->resume(cdma, getptr);
291}
292
293static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
294 struct host1x_cdma *cdma,
295 u32 getptr,
296 u32 syncpt_incrs,
297 u32 syncval, u32 nr_slots)
298{
299 host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
300 nr_slots);
301}
302
303static inline void host1x_hw_pushbuffer_init(struct host1x *host,
304 struct push_buffer *pb)
305{
306 host->cdma_pb_op->init(pb);
307}
308
309static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
310{
311 if (host->debug_op && host->debug_op->debug_init)
312 host->debug_op->debug_init(de);
313}
314
315static inline void host1x_hw_show_channel_cdma(struct host1x *host,
316 struct host1x_channel *channel,
317 struct output *o)
318{
319 host->debug_op->show_channel_cdma(host, channel, o);
320}
321
322static inline void host1x_hw_show_channel_fifo(struct host1x *host,
323 struct host1x_channel *channel,
324 struct output *o)
325{
326 host->debug_op->show_channel_fifo(host, channel, o);
327}
328
329static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
330{
331 host->debug_op->show_mlocks(host, o);
332}
333
334extern struct platform_driver tegra_mipi_driver;
335
336#endif