1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2012-2015, NVIDIA Corporation.
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>
22 struct host1x_syncpt_base;
23 struct host1x_channel;
30 struct host1x_channel_ops {
31 int (*init)(struct host1x_channel *channel, struct host1x *host,
33 int (*submit)(struct host1x_job *job);
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);
48 struct host1x_pushbuffer_ops {
49 void (*init)(struct push_buffer *pb);
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,
57 void (*show_channel_fifo)(struct host1x *host,
58 struct host1x_channel *ch,
60 void (*show_mlocks)(struct host1x *host, struct output *output);
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);
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);
86 struct host1x_sid_entry {
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;
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.
109 bool reserve_vblank_syncpts;
113 const struct host1x_info *info;
116 void __iomem *hv_regs; /* hypervisor region */
117 struct host1x_syncpt *syncpt;
118 struct host1x_syncpt_base *bases;
121 struct reset_control_bulk_data resets[2];
122 unsigned int nresets;
124 struct iommu_group *group;
125 struct iommu_domain *domain;
126 struct iova_domain iova;
129 struct mutex intr_mutex;
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;
139 struct host1x_syncpt *nop_sp;
141 struct mutex syncpt_mutex;
143 struct host1x_channel_list channel_list;
145 struct dentry *debugfs;
147 struct mutex devices_lock;
148 struct list_head devices;
150 struct list_head list;
152 struct device_dma_parameters dma_parms;
154 struct host1x_bo_cache cache;
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);
164 static inline void host1x_hw_syncpt_restore(struct host1x *host,
165 struct host1x_syncpt *sp)
167 host->syncpt_op->restore(sp);
170 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
171 struct host1x_syncpt *sp)
173 host->syncpt_op->restore_wait_base(sp);
176 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
177 struct host1x_syncpt *sp)
179 host->syncpt_op->load_wait_base(sp);
182 static inline u32 host1x_hw_syncpt_load(struct host1x *host,
183 struct host1x_syncpt *sp)
185 return host->syncpt_op->load(sp);
188 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
189 struct host1x_syncpt *sp)
191 return host->syncpt_op->cpu_incr(sp);
194 static inline void host1x_hw_syncpt_assign_to_channel(
195 struct host1x *host, struct host1x_syncpt *sp,
196 struct host1x_channel *ch)
198 return host->syncpt_op->assign_to_channel(sp, ch);
201 static inline void host1x_hw_syncpt_enable_protection(struct host1x *host)
203 return host->syncpt_op->enable_protection(host);
206 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm,
207 void (*syncpt_thresh_work)(struct work_struct *))
209 return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work);
212 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
216 host->intr_op->set_syncpt_threshold(host, id, thresh);
219 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
222 host->intr_op->enable_syncpt_intr(host, id);
225 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
228 host->intr_op->disable_syncpt_intr(host, id);
231 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
233 host->intr_op->disable_all_syncpt_intrs(host);
236 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
238 return host->intr_op->free_syncpt_irq(host);
241 static inline int host1x_hw_channel_init(struct host1x *host,
242 struct host1x_channel *channel,
245 return host->channel_op->init(channel, host, id);
248 static inline int host1x_hw_channel_submit(struct host1x *host,
249 struct host1x_job *job)
251 return host->channel_op->submit(job);
254 static inline void host1x_hw_cdma_start(struct host1x *host,
255 struct host1x_cdma *cdma)
257 host->cdma_op->start(cdma);
260 static inline void host1x_hw_cdma_stop(struct host1x *host,
261 struct host1x_cdma *cdma)
263 host->cdma_op->stop(cdma);
266 static inline void host1x_hw_cdma_flush(struct host1x *host,
267 struct host1x_cdma *cdma)
269 host->cdma_op->flush(cdma);
272 static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
273 struct host1x_cdma *cdma)
275 return host->cdma_op->timeout_init(cdma);
278 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
279 struct host1x_cdma *cdma)
281 host->cdma_op->timeout_destroy(cdma);
284 static inline void host1x_hw_cdma_freeze(struct host1x *host,
285 struct host1x_cdma *cdma)
287 host->cdma_op->freeze(cdma);
290 static inline void host1x_hw_cdma_resume(struct host1x *host,
291 struct host1x_cdma *cdma, u32 getptr)
293 host->cdma_op->resume(cdma, getptr);
296 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
297 struct host1x_cdma *cdma,
300 u32 syncval, u32 nr_slots)
302 host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
306 static inline void host1x_hw_pushbuffer_init(struct host1x *host,
307 struct push_buffer *pb)
309 host->cdma_pb_op->init(pb);
312 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
314 if (host->debug_op && host->debug_op->debug_init)
315 host->debug_op->debug_init(de);
318 static inline void host1x_hw_show_channel_cdma(struct host1x *host,
319 struct host1x_channel *channel,
322 host->debug_op->show_channel_cdma(host, channel, o);
325 static inline void host1x_hw_show_channel_fifo(struct host1x *host,
326 struct host1x_channel *channel,
329 host->debug_op->show_channel_fifo(host, channel, o);
332 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
334 host->debug_op->show_mlocks(host, o);
337 extern struct platform_driver tegra_mipi_driver;