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
21 struct host1x_syncpt;
22 struct host1x_syncpt_base;
23 struct host1x_channel;
24 struct host1x_cdma;
25 struct host1x_job;
26 struct push_buffer;
27 struct output;
28 struct dentry;
29
30 struct 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
36 struct 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
48 struct host1x_pushbuffer_ops {
49 void (*init)(struct push_buffer *pb);
50 };
51
52 struct 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
64 struct 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
75 struct 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
86 struct host1x_sid_entry {
87 unsigned int base;
88 unsigned int offset;
89 unsigned int limit;
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 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
112 struct 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_bulk_data resets[2];
122 unsigned int nresets;
123
124 struct iommu_group *group;
125 struct iommu_domain *domain;
126 struct iova_domain iova;
127 dma_addr_t iova_end;
128
129 struct mutex intr_mutex;
130 int intr_syncpt_irq;
131
132 const struct host1x_syncpt_ops *syncpt_op;
133 const struct host1x_intr_ops *intr_op;
134 const struct host1x_channel_ops *channel_op;
135 const struct host1x_cdma_ops *cdma_op;
136 const struct host1x_pushbuffer_ops *cdma_pb_op;
137 const struct host1x_debug_ops *debug_op;
138
139 struct host1x_syncpt *nop_sp;
140
141 struct mutex syncpt_mutex;
142
143 struct host1x_channel_list channel_list;
144
145 struct dentry *debugfs;
146
147 struct mutex devices_lock;
148 struct list_head devices;
149
150 struct list_head list;
151
152 struct device_dma_parameters dma_parms;
153
154 struct host1x_bo_cache cache;
155 };
156
157 void host1x_hypervisor_writel(struct host1x *host1x, u32 r, u32 v);
158 u32 host1x_hypervisor_readl(struct host1x *host1x, u32 r);
159 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
160 u32 host1x_sync_readl(struct host1x *host1x, u32 r);
161 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
162 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
163
host1x_hw_syncpt_restore(struct host1x * host,struct host1x_syncpt * sp)164 static inline void host1x_hw_syncpt_restore(struct host1x *host,
165 struct host1x_syncpt *sp)
166 {
167 host->syncpt_op->restore(sp);
168 }
169
host1x_hw_syncpt_restore_wait_base(struct host1x * host,struct host1x_syncpt * sp)170 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
171 struct host1x_syncpt *sp)
172 {
173 host->syncpt_op->restore_wait_base(sp);
174 }
175
host1x_hw_syncpt_load_wait_base(struct host1x * host,struct host1x_syncpt * sp)176 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
177 struct host1x_syncpt *sp)
178 {
179 host->syncpt_op->load_wait_base(sp);
180 }
181
host1x_hw_syncpt_load(struct host1x * host,struct host1x_syncpt * sp)182 static inline u32 host1x_hw_syncpt_load(struct host1x *host,
183 struct host1x_syncpt *sp)
184 {
185 return host->syncpt_op->load(sp);
186 }
187
host1x_hw_syncpt_cpu_incr(struct host1x * host,struct host1x_syncpt * sp)188 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
189 struct host1x_syncpt *sp)
190 {
191 return host->syncpt_op->cpu_incr(sp);
192 }
193
host1x_hw_syncpt_assign_to_channel(struct host1x * host,struct host1x_syncpt * sp,struct host1x_channel * ch)194 static inline void host1x_hw_syncpt_assign_to_channel(
195 struct host1x *host, struct host1x_syncpt *sp,
196 struct host1x_channel *ch)
197 {
198 return host->syncpt_op->assign_to_channel(sp, ch);
199 }
200
host1x_hw_syncpt_enable_protection(struct host1x * host)201 static inline void host1x_hw_syncpt_enable_protection(struct host1x *host)
202 {
203 return host->syncpt_op->enable_protection(host);
204 }
205
host1x_hw_intr_init_host_sync(struct host1x * host,u32 cpm,void (* syncpt_thresh_work)(struct work_struct *))206 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm,
207 void (*syncpt_thresh_work)(struct work_struct *))
208 {
209 return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work);
210 }
211
host1x_hw_intr_set_syncpt_threshold(struct host1x * host,unsigned int id,u32 thresh)212 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
213 unsigned int id,
214 u32 thresh)
215 {
216 host->intr_op->set_syncpt_threshold(host, id, thresh);
217 }
218
host1x_hw_intr_enable_syncpt_intr(struct host1x * host,unsigned int id)219 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
220 unsigned int id)
221 {
222 host->intr_op->enable_syncpt_intr(host, id);
223 }
224
host1x_hw_intr_disable_syncpt_intr(struct host1x * host,unsigned int id)225 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
226 unsigned int id)
227 {
228 host->intr_op->disable_syncpt_intr(host, id);
229 }
230
host1x_hw_intr_disable_all_syncpt_intrs(struct host1x * host)231 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
232 {
233 host->intr_op->disable_all_syncpt_intrs(host);
234 }
235
host1x_hw_intr_free_syncpt_irq(struct host1x * host)236 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
237 {
238 return host->intr_op->free_syncpt_irq(host);
239 }
240
host1x_hw_channel_init(struct host1x * host,struct host1x_channel * channel,unsigned int id)241 static inline int host1x_hw_channel_init(struct host1x *host,
242 struct host1x_channel *channel,
243 unsigned int id)
244 {
245 return host->channel_op->init(channel, host, id);
246 }
247
host1x_hw_channel_submit(struct host1x * host,struct host1x_job * job)248 static inline int host1x_hw_channel_submit(struct host1x *host,
249 struct host1x_job *job)
250 {
251 return host->channel_op->submit(job);
252 }
253
host1x_hw_cdma_start(struct host1x * host,struct host1x_cdma * cdma)254 static inline void host1x_hw_cdma_start(struct host1x *host,
255 struct host1x_cdma *cdma)
256 {
257 host->cdma_op->start(cdma);
258 }
259
host1x_hw_cdma_stop(struct host1x * host,struct host1x_cdma * cdma)260 static inline void host1x_hw_cdma_stop(struct host1x *host,
261 struct host1x_cdma *cdma)
262 {
263 host->cdma_op->stop(cdma);
264 }
265
host1x_hw_cdma_flush(struct host1x * host,struct host1x_cdma * cdma)266 static inline void host1x_hw_cdma_flush(struct host1x *host,
267 struct host1x_cdma *cdma)
268 {
269 host->cdma_op->flush(cdma);
270 }
271
host1x_hw_cdma_timeout_init(struct host1x * host,struct host1x_cdma * cdma)272 static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
273 struct host1x_cdma *cdma)
274 {
275 return host->cdma_op->timeout_init(cdma);
276 }
277
host1x_hw_cdma_timeout_destroy(struct host1x * host,struct host1x_cdma * cdma)278 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
279 struct host1x_cdma *cdma)
280 {
281 host->cdma_op->timeout_destroy(cdma);
282 }
283
host1x_hw_cdma_freeze(struct host1x * host,struct host1x_cdma * cdma)284 static inline void host1x_hw_cdma_freeze(struct host1x *host,
285 struct host1x_cdma *cdma)
286 {
287 host->cdma_op->freeze(cdma);
288 }
289
host1x_hw_cdma_resume(struct host1x * host,struct host1x_cdma * cdma,u32 getptr)290 static inline void host1x_hw_cdma_resume(struct host1x *host,
291 struct host1x_cdma *cdma, u32 getptr)
292 {
293 host->cdma_op->resume(cdma, getptr);
294 }
295
host1x_hw_cdma_timeout_cpu_incr(struct host1x * host,struct host1x_cdma * cdma,u32 getptr,u32 syncpt_incrs,u32 syncval,u32 nr_slots)296 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
297 struct host1x_cdma *cdma,
298 u32 getptr,
299 u32 syncpt_incrs,
300 u32 syncval, u32 nr_slots)
301 {
302 host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
303 nr_slots);
304 }
305
host1x_hw_pushbuffer_init(struct host1x * host,struct push_buffer * pb)306 static inline void host1x_hw_pushbuffer_init(struct host1x *host,
307 struct push_buffer *pb)
308 {
309 host->cdma_pb_op->init(pb);
310 }
311
host1x_hw_debug_init(struct host1x * host,struct dentry * de)312 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
313 {
314 if (host->debug_op && host->debug_op->debug_init)
315 host->debug_op->debug_init(de);
316 }
317
host1x_hw_show_channel_cdma(struct host1x * host,struct host1x_channel * channel,struct output * o)318 static inline void host1x_hw_show_channel_cdma(struct host1x *host,
319 struct host1x_channel *channel,
320 struct output *o)
321 {
322 host->debug_op->show_channel_cdma(host, channel, o);
323 }
324
host1x_hw_show_channel_fifo(struct host1x * host,struct host1x_channel * channel,struct output * o)325 static inline void host1x_hw_show_channel_fifo(struct host1x *host,
326 struct host1x_channel *channel,
327 struct output *o)
328 {
329 host->debug_op->show_channel_fifo(host, channel, o);
330 }
331
host1x_hw_show_mlocks(struct host1x * host,struct output * o)332 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
333 {
334 host->debug_op->show_mlocks(host, o);
335 }
336
337 extern struct platform_driver tegra_mipi_driver;
338
339 #endif
340