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_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 }; 105 106 struct host1x { 107 const struct host1x_info *info; 108 109 void __iomem *regs; 110 void __iomem *hv_regs; /* hypervisor region */ 111 struct host1x_syncpt *syncpt; 112 struct host1x_syncpt_base *bases; 113 struct device *dev; 114 struct clk *clk; 115 struct reset_control *rst; 116 117 struct iommu_group *group; 118 struct iommu_domain *domain; 119 struct iova_domain iova; 120 dma_addr_t iova_end; 121 122 struct mutex intr_mutex; 123 int intr_syncpt_irq; 124 125 const struct host1x_syncpt_ops *syncpt_op; 126 const struct host1x_intr_ops *intr_op; 127 const struct host1x_channel_ops *channel_op; 128 const struct host1x_cdma_ops *cdma_op; 129 const struct host1x_pushbuffer_ops *cdma_pb_op; 130 const struct host1x_debug_ops *debug_op; 131 132 struct host1x_syncpt *nop_sp; 133 134 struct mutex syncpt_mutex; 135 136 struct host1x_channel_list channel_list; 137 138 struct dentry *debugfs; 139 140 struct mutex devices_lock; 141 struct list_head devices; 142 143 struct list_head list; 144 145 struct device_dma_parameters dma_parms; 146 }; 147 148 void host1x_hypervisor_writel(struct host1x *host1x, u32 r, u32 v); 149 u32 host1x_hypervisor_readl(struct host1x *host1x, u32 r); 150 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v); 151 u32 host1x_sync_readl(struct host1x *host1x, u32 r); 152 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v); 153 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r); 154 155 static inline void host1x_hw_syncpt_restore(struct host1x *host, 156 struct host1x_syncpt *sp) 157 { 158 host->syncpt_op->restore(sp); 159 } 160 161 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host, 162 struct host1x_syncpt *sp) 163 { 164 host->syncpt_op->restore_wait_base(sp); 165 } 166 167 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host, 168 struct host1x_syncpt *sp) 169 { 170 host->syncpt_op->load_wait_base(sp); 171 } 172 173 static inline u32 host1x_hw_syncpt_load(struct host1x *host, 174 struct host1x_syncpt *sp) 175 { 176 return host->syncpt_op->load(sp); 177 } 178 179 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host, 180 struct host1x_syncpt *sp) 181 { 182 return host->syncpt_op->cpu_incr(sp); 183 } 184 185 static inline void host1x_hw_syncpt_assign_to_channel( 186 struct host1x *host, struct host1x_syncpt *sp, 187 struct host1x_channel *ch) 188 { 189 return host->syncpt_op->assign_to_channel(sp, ch); 190 } 191 192 static inline void host1x_hw_syncpt_enable_protection(struct host1x *host) 193 { 194 return host->syncpt_op->enable_protection(host); 195 } 196 197 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm, 198 void (*syncpt_thresh_work)(struct work_struct *)) 199 { 200 return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work); 201 } 202 203 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host, 204 unsigned int id, 205 u32 thresh) 206 { 207 host->intr_op->set_syncpt_threshold(host, id, thresh); 208 } 209 210 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host, 211 unsigned int id) 212 { 213 host->intr_op->enable_syncpt_intr(host, id); 214 } 215 216 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host, 217 unsigned int id) 218 { 219 host->intr_op->disable_syncpt_intr(host, id); 220 } 221 222 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host) 223 { 224 host->intr_op->disable_all_syncpt_intrs(host); 225 } 226 227 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host) 228 { 229 return host->intr_op->free_syncpt_irq(host); 230 } 231 232 static inline int host1x_hw_channel_init(struct host1x *host, 233 struct host1x_channel *channel, 234 unsigned int id) 235 { 236 return host->channel_op->init(channel, host, id); 237 } 238 239 static inline int host1x_hw_channel_submit(struct host1x *host, 240 struct host1x_job *job) 241 { 242 return host->channel_op->submit(job); 243 } 244 245 static inline void host1x_hw_cdma_start(struct host1x *host, 246 struct host1x_cdma *cdma) 247 { 248 host->cdma_op->start(cdma); 249 } 250 251 static inline void host1x_hw_cdma_stop(struct host1x *host, 252 struct host1x_cdma *cdma) 253 { 254 host->cdma_op->stop(cdma); 255 } 256 257 static inline void host1x_hw_cdma_flush(struct host1x *host, 258 struct host1x_cdma *cdma) 259 { 260 host->cdma_op->flush(cdma); 261 } 262 263 static inline int host1x_hw_cdma_timeout_init(struct host1x *host, 264 struct host1x_cdma *cdma, 265 unsigned int syncpt) 266 { 267 return host->cdma_op->timeout_init(cdma, syncpt); 268 } 269 270 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host, 271 struct host1x_cdma *cdma) 272 { 273 host->cdma_op->timeout_destroy(cdma); 274 } 275 276 static inline void host1x_hw_cdma_freeze(struct host1x *host, 277 struct host1x_cdma *cdma) 278 { 279 host->cdma_op->freeze(cdma); 280 } 281 282 static inline void host1x_hw_cdma_resume(struct host1x *host, 283 struct host1x_cdma *cdma, u32 getptr) 284 { 285 host->cdma_op->resume(cdma, getptr); 286 } 287 288 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host, 289 struct host1x_cdma *cdma, 290 u32 getptr, 291 u32 syncpt_incrs, 292 u32 syncval, u32 nr_slots) 293 { 294 host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval, 295 nr_slots); 296 } 297 298 static inline void host1x_hw_pushbuffer_init(struct host1x *host, 299 struct push_buffer *pb) 300 { 301 host->cdma_pb_op->init(pb); 302 } 303 304 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de) 305 { 306 if (host->debug_op && host->debug_op->debug_init) 307 host->debug_op->debug_init(de); 308 } 309 310 static inline void host1x_hw_show_channel_cdma(struct host1x *host, 311 struct host1x_channel *channel, 312 struct output *o) 313 { 314 host->debug_op->show_channel_cdma(host, channel, o); 315 } 316 317 static inline void host1x_hw_show_channel_fifo(struct host1x *host, 318 struct host1x_channel *channel, 319 struct output *o) 320 { 321 host->debug_op->show_channel_fifo(host, channel, o); 322 } 323 324 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o) 325 { 326 host->debug_op->show_mlocks(host, o); 327 } 328 329 extern struct platform_driver tegra_mipi_driver; 330 331 #endif 332