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 "context.h" 18 #include "intr.h" 19 #include "job.h" 20 #include "syncpt.h" 21 22 struct host1x_syncpt; 23 struct host1x_syncpt_base; 24 struct host1x_channel; 25 struct host1x_cdma; 26 struct host1x_job; 27 struct push_buffer; 28 struct output; 29 struct dentry; 30 31 struct host1x_channel_ops { 32 int (*init)(struct host1x_channel *channel, struct host1x *host, 33 unsigned int id); 34 int (*submit)(struct host1x_job *job); 35 }; 36 37 struct host1x_cdma_ops { 38 void (*start)(struct host1x_cdma *cdma); 39 void (*stop)(struct host1x_cdma *cdma); 40 void (*flush)(struct host1x_cdma *cdma); 41 int (*timeout_init)(struct host1x_cdma *cdma); 42 void (*timeout_destroy)(struct host1x_cdma *cdma); 43 void (*freeze)(struct host1x_cdma *cdma); 44 void (*resume)(struct host1x_cdma *cdma, u32 getptr); 45 void (*timeout_cpu_incr)(struct host1x_cdma *cdma, u32 getptr, 46 u32 syncpt_incrs, u32 syncval, u32 nr_slots); 47 }; 48 49 struct host1x_pushbuffer_ops { 50 void (*init)(struct push_buffer *pb); 51 }; 52 53 struct host1x_debug_ops { 54 void (*debug_init)(struct dentry *de); 55 void (*show_channel_cdma)(struct host1x *host, 56 struct host1x_channel *ch, 57 struct output *o); 58 void (*show_channel_fifo)(struct host1x *host, 59 struct host1x_channel *ch, 60 struct output *o); 61 void (*show_mlocks)(struct host1x *host, struct output *output); 62 63 }; 64 65 struct host1x_syncpt_ops { 66 void (*restore)(struct host1x_syncpt *syncpt); 67 void (*restore_wait_base)(struct host1x_syncpt *syncpt); 68 void (*load_wait_base)(struct host1x_syncpt *syncpt); 69 u32 (*load)(struct host1x_syncpt *syncpt); 70 int (*cpu_incr)(struct host1x_syncpt *syncpt); 71 void (*assign_to_channel)(struct host1x_syncpt *syncpt, 72 struct host1x_channel *channel); 73 void (*enable_protection)(struct host1x *host); 74 }; 75 76 struct host1x_intr_ops { 77 int (*init_host_sync)(struct host1x *host, u32 cpm); 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_table_desc { 93 unsigned int base; 94 unsigned int count; 95 }; 96 97 struct host1x_info { 98 unsigned int nb_channels; /* host1x: number of channels supported */ 99 unsigned int nb_pts; /* host1x: number of syncpoints supported */ 100 unsigned int nb_bases; /* host1x: number of syncpoint bases supported */ 101 unsigned int nb_mlocks; /* host1x: number of mlocks supported */ 102 int (*init)(struct host1x *host1x); /* initialize per SoC ops */ 103 unsigned int sync_offset; /* offset of syncpoint registers */ 104 u64 dma_mask; /* mask of addressable memory */ 105 bool has_wide_gather; /* supports GATHER_W opcode */ 106 bool has_hypervisor; /* has hypervisor registers */ 107 bool has_common; /* has common registers separate from hypervisor */ 108 unsigned int num_sid_entries; 109 const struct host1x_sid_entry *sid_table; 110 struct host1x_table_desc streamid_vm_table; 111 struct host1x_table_desc classid_vm_table; 112 struct host1x_table_desc mmio_vm_table; 113 /* 114 * On T20-T148, the boot chain may setup DC to increment syncpoints 115 * 26/27 on VBLANK. As such we cannot use these syncpoints until 116 * the display driver disables VBLANK increments. 117 */ 118 bool reserve_vblank_syncpts; 119 /* 120 * On Tegra186, secure world applications may require access to 121 * host1x during suspend/resume. To allow this, we need to leave 122 * host1x not in reset. 123 */ 124 bool skip_reset_assert; 125 }; 126 127 struct host1x { 128 const struct host1x_info *info; 129 130 void __iomem *regs; 131 void __iomem *hv_regs; /* hypervisor region */ 132 void __iomem *common_regs; 133 int syncpt_irqs[8]; 134 int num_syncpt_irqs; 135 struct host1x_syncpt *syncpt; 136 struct host1x_syncpt_base *bases; 137 struct device *dev; 138 struct clk *clk; 139 struct reset_control_bulk_data resets[2]; 140 unsigned int nresets; 141 142 struct iommu_group *group; 143 struct iommu_domain *domain; 144 struct iova_domain iova; 145 dma_addr_t iova_end; 146 147 struct mutex intr_mutex; 148 149 const struct host1x_syncpt_ops *syncpt_op; 150 const struct host1x_intr_ops *intr_op; 151 const struct host1x_channel_ops *channel_op; 152 const struct host1x_cdma_ops *cdma_op; 153 const struct host1x_pushbuffer_ops *cdma_pb_op; 154 const struct host1x_debug_ops *debug_op; 155 156 struct host1x_syncpt *nop_sp; 157 158 struct mutex syncpt_mutex; 159 160 struct host1x_channel_list channel_list; 161 struct host1x_memory_context_list context_list; 162 163 struct dentry *debugfs; 164 165 struct mutex devices_lock; 166 struct list_head devices; 167 168 struct list_head list; 169 170 struct device_dma_parameters dma_parms; 171 172 struct host1x_bo_cache cache; 173 }; 174 175 void host1x_common_writel(struct host1x *host1x, u32 v, u32 r); 176 void host1x_hypervisor_writel(struct host1x *host1x, u32 r, u32 v); 177 u32 host1x_hypervisor_readl(struct host1x *host1x, u32 r); 178 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v); 179 u32 host1x_sync_readl(struct host1x *host1x, u32 r); 180 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v); 181 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r); 182 183 static inline void host1x_hw_syncpt_restore(struct host1x *host, 184 struct host1x_syncpt *sp) 185 { 186 host->syncpt_op->restore(sp); 187 } 188 189 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host, 190 struct host1x_syncpt *sp) 191 { 192 host->syncpt_op->restore_wait_base(sp); 193 } 194 195 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host, 196 struct host1x_syncpt *sp) 197 { 198 host->syncpt_op->load_wait_base(sp); 199 } 200 201 static inline u32 host1x_hw_syncpt_load(struct host1x *host, 202 struct host1x_syncpt *sp) 203 { 204 return host->syncpt_op->load(sp); 205 } 206 207 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host, 208 struct host1x_syncpt *sp) 209 { 210 return host->syncpt_op->cpu_incr(sp); 211 } 212 213 static inline void host1x_hw_syncpt_assign_to_channel( 214 struct host1x *host, struct host1x_syncpt *sp, 215 struct host1x_channel *ch) 216 { 217 return host->syncpt_op->assign_to_channel(sp, ch); 218 } 219 220 static inline void host1x_hw_syncpt_enable_protection(struct host1x *host) 221 { 222 return host->syncpt_op->enable_protection(host); 223 } 224 225 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm) 226 { 227 return host->intr_op->init_host_sync(host, cpm); 228 } 229 230 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host, 231 unsigned int id, 232 u32 thresh) 233 { 234 host->intr_op->set_syncpt_threshold(host, id, thresh); 235 } 236 237 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host, 238 unsigned int id) 239 { 240 host->intr_op->enable_syncpt_intr(host, id); 241 } 242 243 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host, 244 unsigned int id) 245 { 246 host->intr_op->disable_syncpt_intr(host, id); 247 } 248 249 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host) 250 { 251 host->intr_op->disable_all_syncpt_intrs(host); 252 } 253 254 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host) 255 { 256 return host->intr_op->free_syncpt_irq(host); 257 } 258 259 static inline int host1x_hw_channel_init(struct host1x *host, 260 struct host1x_channel *channel, 261 unsigned int id) 262 { 263 return host->channel_op->init(channel, host, id); 264 } 265 266 static inline int host1x_hw_channel_submit(struct host1x *host, 267 struct host1x_job *job) 268 { 269 return host->channel_op->submit(job); 270 } 271 272 static inline void host1x_hw_cdma_start(struct host1x *host, 273 struct host1x_cdma *cdma) 274 { 275 host->cdma_op->start(cdma); 276 } 277 278 static inline void host1x_hw_cdma_stop(struct host1x *host, 279 struct host1x_cdma *cdma) 280 { 281 host->cdma_op->stop(cdma); 282 } 283 284 static inline void host1x_hw_cdma_flush(struct host1x *host, 285 struct host1x_cdma *cdma) 286 { 287 host->cdma_op->flush(cdma); 288 } 289 290 static inline int host1x_hw_cdma_timeout_init(struct host1x *host, 291 struct host1x_cdma *cdma) 292 { 293 return host->cdma_op->timeout_init(cdma); 294 } 295 296 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host, 297 struct host1x_cdma *cdma) 298 { 299 host->cdma_op->timeout_destroy(cdma); 300 } 301 302 static inline void host1x_hw_cdma_freeze(struct host1x *host, 303 struct host1x_cdma *cdma) 304 { 305 host->cdma_op->freeze(cdma); 306 } 307 308 static inline void host1x_hw_cdma_resume(struct host1x *host, 309 struct host1x_cdma *cdma, u32 getptr) 310 { 311 host->cdma_op->resume(cdma, getptr); 312 } 313 314 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host, 315 struct host1x_cdma *cdma, 316 u32 getptr, 317 u32 syncpt_incrs, 318 u32 syncval, u32 nr_slots) 319 { 320 host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval, 321 nr_slots); 322 } 323 324 static inline void host1x_hw_pushbuffer_init(struct host1x *host, 325 struct push_buffer *pb) 326 { 327 host->cdma_pb_op->init(pb); 328 } 329 330 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de) 331 { 332 if (host->debug_op && host->debug_op->debug_init) 333 host->debug_op->debug_init(de); 334 } 335 336 static inline void host1x_hw_show_channel_cdma(struct host1x *host, 337 struct host1x_channel *channel, 338 struct output *o) 339 { 340 host->debug_op->show_channel_cdma(host, channel, o); 341 } 342 343 static inline void host1x_hw_show_channel_fifo(struct host1x *host, 344 struct host1x_channel *channel, 345 struct output *o) 346 { 347 host->debug_op->show_channel_fifo(host, channel, o); 348 } 349 350 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o) 351 { 352 host->debug_op->show_mlocks(host, o); 353 } 354 355 extern struct platform_driver tegra_mipi_driver; 356 357 #endif 358