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); 163 164 static inline void host1x_hw_syncpt_restore(struct host1x *host, 165 struct host1x_syncpt *sp) 166 { 167 host->syncpt_op->restore(sp); 168 } 169 170 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 } 175 176 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 } 181 182 static inline u32 host1x_hw_syncpt_load(struct host1x *host, 183 struct host1x_syncpt *sp) 184 { 185 return host->syncpt_op->load(sp); 186 } 187 188 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 } 193 194 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 } 200 201 static inline void host1x_hw_syncpt_enable_protection(struct host1x *host) 202 { 203 return host->syncpt_op->enable_protection(host); 204 } 205 206 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 } 211 212 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 } 218 219 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 } 224 225 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 } 230 231 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host) 232 { 233 host->intr_op->disable_all_syncpt_intrs(host); 234 } 235 236 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host) 237 { 238 return host->intr_op->free_syncpt_irq(host); 239 } 240 241 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 } 247 248 static inline int host1x_hw_channel_submit(struct host1x *host, 249 struct host1x_job *job) 250 { 251 return host->channel_op->submit(job); 252 } 253 254 static inline void host1x_hw_cdma_start(struct host1x *host, 255 struct host1x_cdma *cdma) 256 { 257 host->cdma_op->start(cdma); 258 } 259 260 static inline void host1x_hw_cdma_stop(struct host1x *host, 261 struct host1x_cdma *cdma) 262 { 263 host->cdma_op->stop(cdma); 264 } 265 266 static inline void host1x_hw_cdma_flush(struct host1x *host, 267 struct host1x_cdma *cdma) 268 { 269 host->cdma_op->flush(cdma); 270 } 271 272 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 } 277 278 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 } 283 284 static inline void host1x_hw_cdma_freeze(struct host1x *host, 285 struct host1x_cdma *cdma) 286 { 287 host->cdma_op->freeze(cdma); 288 } 289 290 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 } 295 296 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 } 305 306 static inline void host1x_hw_pushbuffer_init(struct host1x *host, 307 struct push_buffer *pb) 308 { 309 host->cdma_pb_op->init(pb); 310 } 311 312 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 } 317 318 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 } 324 325 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 } 331 332 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