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, unsigned int syncpt); 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_hypervisor; /* has hypervisor registers */ 101 unsigned int num_sid_entries; 102 const struct host1x_sid_entry *sid_table; 103 }; 104 105 struct host1x { 106 const struct host1x_info *info; 107 108 void __iomem *regs; 109 void __iomem *hv_regs; /* hypervisor region */ 110 struct host1x_syncpt *syncpt; 111 struct host1x_syncpt_base *bases; 112 struct device *dev; 113 struct clk *clk; 114 struct reset_control *rst; 115 116 struct iommu_group *group; 117 struct iommu_domain *domain; 118 struct iova_domain iova; 119 dma_addr_t iova_end; 120 121 struct mutex intr_mutex; 122 int intr_syncpt_irq; 123 124 const struct host1x_syncpt_ops *syncpt_op; 125 const struct host1x_intr_ops *intr_op; 126 const struct host1x_channel_ops *channel_op; 127 const struct host1x_cdma_ops *cdma_op; 128 const struct host1x_pushbuffer_ops *cdma_pb_op; 129 const struct host1x_debug_ops *debug_op; 130 131 struct host1x_syncpt *nop_sp; 132 133 struct mutex syncpt_mutex; 134 135 struct host1x_channel_list channel_list; 136 137 struct dentry *debugfs; 138 139 struct mutex devices_lock; 140 struct list_head devices; 141 142 struct list_head list; 143 144 struct device_dma_parameters dma_parms; 145 }; 146 147 void host1x_hypervisor_writel(struct host1x *host1x, u32 r, u32 v); 148 u32 host1x_hypervisor_readl(struct host1x *host1x, u32 r); 149 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v); 150 u32 host1x_sync_readl(struct host1x *host1x, u32 r); 151 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v); 152 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r); 153 154 static inline void host1x_hw_syncpt_restore(struct host1x *host, 155 struct host1x_syncpt *sp) 156 { 157 host->syncpt_op->restore(sp); 158 } 159 160 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host, 161 struct host1x_syncpt *sp) 162 { 163 host->syncpt_op->restore_wait_base(sp); 164 } 165 166 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host, 167 struct host1x_syncpt *sp) 168 { 169 host->syncpt_op->load_wait_base(sp); 170 } 171 172 static inline u32 host1x_hw_syncpt_load(struct host1x *host, 173 struct host1x_syncpt *sp) 174 { 175 return host->syncpt_op->load(sp); 176 } 177 178 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host, 179 struct host1x_syncpt *sp) 180 { 181 return host->syncpt_op->cpu_incr(sp); 182 } 183 184 static inline void host1x_hw_syncpt_assign_to_channel( 185 struct host1x *host, struct host1x_syncpt *sp, 186 struct host1x_channel *ch) 187 { 188 return host->syncpt_op->assign_to_channel(sp, ch); 189 } 190 191 static inline void host1x_hw_syncpt_enable_protection(struct host1x *host) 192 { 193 return host->syncpt_op->enable_protection(host); 194 } 195 196 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm, 197 void (*syncpt_thresh_work)(struct work_struct *)) 198 { 199 return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work); 200 } 201 202 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host, 203 unsigned int id, 204 u32 thresh) 205 { 206 host->intr_op->set_syncpt_threshold(host, id, thresh); 207 } 208 209 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host, 210 unsigned int id) 211 { 212 host->intr_op->enable_syncpt_intr(host, id); 213 } 214 215 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host, 216 unsigned int id) 217 { 218 host->intr_op->disable_syncpt_intr(host, id); 219 } 220 221 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host) 222 { 223 host->intr_op->disable_all_syncpt_intrs(host); 224 } 225 226 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host) 227 { 228 return host->intr_op->free_syncpt_irq(host); 229 } 230 231 static inline int host1x_hw_channel_init(struct host1x *host, 232 struct host1x_channel *channel, 233 unsigned int id) 234 { 235 return host->channel_op->init(channel, host, id); 236 } 237 238 static inline int host1x_hw_channel_submit(struct host1x *host, 239 struct host1x_job *job) 240 { 241 return host->channel_op->submit(job); 242 } 243 244 static inline void host1x_hw_cdma_start(struct host1x *host, 245 struct host1x_cdma *cdma) 246 { 247 host->cdma_op->start(cdma); 248 } 249 250 static inline void host1x_hw_cdma_stop(struct host1x *host, 251 struct host1x_cdma *cdma) 252 { 253 host->cdma_op->stop(cdma); 254 } 255 256 static inline void host1x_hw_cdma_flush(struct host1x *host, 257 struct host1x_cdma *cdma) 258 { 259 host->cdma_op->flush(cdma); 260 } 261 262 static inline int host1x_hw_cdma_timeout_init(struct host1x *host, 263 struct host1x_cdma *cdma, 264 unsigned int syncpt) 265 { 266 return host->cdma_op->timeout_init(cdma, syncpt); 267 } 268 269 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host, 270 struct host1x_cdma *cdma) 271 { 272 host->cdma_op->timeout_destroy(cdma); 273 } 274 275 static inline void host1x_hw_cdma_freeze(struct host1x *host, 276 struct host1x_cdma *cdma) 277 { 278 host->cdma_op->freeze(cdma); 279 } 280 281 static inline void host1x_hw_cdma_resume(struct host1x *host, 282 struct host1x_cdma *cdma, u32 getptr) 283 { 284 host->cdma_op->resume(cdma, getptr); 285 } 286 287 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host, 288 struct host1x_cdma *cdma, 289 u32 getptr, 290 u32 syncpt_incrs, 291 u32 syncval, u32 nr_slots) 292 { 293 host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval, 294 nr_slots); 295 } 296 297 static inline void host1x_hw_pushbuffer_init(struct host1x *host, 298 struct push_buffer *pb) 299 { 300 host->cdma_pb_op->init(pb); 301 } 302 303 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de) 304 { 305 if (host->debug_op && host->debug_op->debug_init) 306 host->debug_op->debug_init(de); 307 } 308 309 static inline void host1x_hw_show_channel_cdma(struct host1x *host, 310 struct host1x_channel *channel, 311 struct output *o) 312 { 313 host->debug_op->show_channel_cdma(host, channel, o); 314 } 315 316 static inline void host1x_hw_show_channel_fifo(struct host1x *host, 317 struct host1x_channel *channel, 318 struct output *o) 319 { 320 host->debug_op->show_channel_fifo(host, channel, o); 321 } 322 323 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o) 324 { 325 host->debug_op->show_mlocks(host, o); 326 } 327 328 extern struct platform_driver tegra_mipi_driver; 329 330 #endif 331