drivers/gpu/host1x/dev.h

   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
 121 struct host1x {
 122         const struct host1x_info *info;
 123
 124         void __iomem *regs;
 125         void __iomem *hv_regs; /* hypervisor region */
 126         void __iomem *common_regs;
 127         int syncpt_irq;
 128         struct host1x_syncpt *syncpt;
 129         struct host1x_syncpt_base *bases;
 130         struct device *dev;
 131         struct clk *clk;
 132         struct reset_control_bulk_data resets[2];
 133         unsigned int nresets;
 134
 135         struct iommu_group *group;
 136         struct iommu_domain *domain;
 137         struct iova_domain iova;
 138         dma_addr_t iova_end;
 139
 140         struct mutex intr_mutex;
 141
 142         const struct host1x_syncpt_ops *syncpt_op;
 143         const struct host1x_intr_ops *intr_op;
 144         const struct host1x_channel_ops *channel_op;
 145         const struct host1x_cdma_ops *cdma_op;
 146         const struct host1x_pushbuffer_ops *cdma_pb_op;
 147         const struct host1x_debug_ops *debug_op;
 148
 149         struct host1x_syncpt *nop_sp;
 150
 151         struct mutex syncpt_mutex;
 152
 153         struct host1x_channel_list channel_list;
 154         struct host1x_memory_context_list context_list;
 155
 156         struct dentry *debugfs;
 157
 158         struct mutex devices_lock;
 159         struct list_head devices;
 160
 161         struct list_head list;
 162
 163         struct device_dma_parameters dma_parms;
 164
 165         struct host1x_bo_cache cache;
 166 };
 167
 168 void host1x_common_writel(struct host1x *host1x, u32 v, u32 r);
 169 void host1x_hypervisor_writel(struct host1x *host1x, u32 r, u32 v);
 170 u32 host1x_hypervisor_readl(struct host1x *host1x, u32 r);
 171 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
 172 u32 host1x_sync_readl(struct host1x *host1x, u32 r);
 173 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
 174 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
 175
 176 static inline void host1x_hw_syncpt_restore(struct host1x *host,
 177                                             struct host1x_syncpt *sp)
 178 {
 179         host->syncpt_op->restore(sp);
 180 }
 181
 182 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
 183                                                       struct host1x_syncpt *sp)
 184 {
 185         host->syncpt_op->restore_wait_base(sp);
 186 }
 187
 188 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
 189                                                    struct host1x_syncpt *sp)
 190 {
 191         host->syncpt_op->load_wait_base(sp);
 192 }
 193
 194 static inline u32 host1x_hw_syncpt_load(struct host1x *host,
 195                                         struct host1x_syncpt *sp)
 196 {
 197         return host->syncpt_op->load(sp);
 198 }
 199
 200 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
 201                                             struct host1x_syncpt *sp)
 202 {
 203         return host->syncpt_op->cpu_incr(sp);
 204 }
 205
 206 static inline void host1x_hw_syncpt_assign_to_channel(
 207         struct host1x *host, struct host1x_syncpt *sp,
 208         struct host1x_channel *ch)
 209 {
 210         return host->syncpt_op->assign_to_channel(sp, ch);
 211 }
 212
 213 static inline void host1x_hw_syncpt_enable_protection(struct host1x *host)
 214 {
 215         return host->syncpt_op->enable_protection(host);
 216 }
 217
 218 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm)
 219 {
 220         return host->intr_op->init_host_sync(host, cpm);
 221 }
 222
 223 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
 224                                                        unsigned int id,
 225                                                        u32 thresh)
 226 {
 227         host->intr_op->set_syncpt_threshold(host, id, thresh);
 228 }
 229
 230 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
 231                                                      unsigned int id)
 232 {
 233         host->intr_op->enable_syncpt_intr(host, id);
 234 }
 235
 236 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
 237                                                       unsigned int id)
 238 {
 239         host->intr_op->disable_syncpt_intr(host, id);
 240 }
 241
 242 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
 243 {
 244         host->intr_op->disable_all_syncpt_intrs(host);
 245 }
 246
 247 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
 248 {
 249         return host->intr_op->free_syncpt_irq(host);
 250 }
 251
 252 static inline int host1x_hw_channel_init(struct host1x *host,
 253                                          struct host1x_channel *channel,
 254                                          unsigned int id)
 255 {
 256         return host->channel_op->init(channel, host, id);
 257 }
 258
 259 static inline int host1x_hw_channel_submit(struct host1x *host,
 260                                            struct host1x_job *job)
 261 {
 262         return host->channel_op->submit(job);
 263 }
 264
 265 static inline void host1x_hw_cdma_start(struct host1x *host,
 266                                         struct host1x_cdma *cdma)
 267 {
 268         host->cdma_op->start(cdma);
 269 }
 270
 271 static inline void host1x_hw_cdma_stop(struct host1x *host,
 272                                        struct host1x_cdma *cdma)
 273 {
 274         host->cdma_op->stop(cdma);
 275 }
 276
 277 static inline void host1x_hw_cdma_flush(struct host1x *host,
 278                                         struct host1x_cdma *cdma)
 279 {
 280         host->cdma_op->flush(cdma);
 281 }
 282
 283 static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
 284                                               struct host1x_cdma *cdma)
 285 {
 286         return host->cdma_op->timeout_init(cdma);
 287 }
 288
 289 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
 290                                                   struct host1x_cdma *cdma)
 291 {
 292         host->cdma_op->timeout_destroy(cdma);
 293 }
 294
 295 static inline void host1x_hw_cdma_freeze(struct host1x *host,
 296                                          struct host1x_cdma *cdma)
 297 {
 298         host->cdma_op->freeze(cdma);
 299 }
 300
 301 static inline void host1x_hw_cdma_resume(struct host1x *host,
 302                                          struct host1x_cdma *cdma, u32 getptr)
 303 {
 304         host->cdma_op->resume(cdma, getptr);
 305 }
 306
 307 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
 308                                                    struct host1x_cdma *cdma,
 309                                                    u32 getptr,
 310                                                    u32 syncpt_incrs,
 311                                                    u32 syncval, u32 nr_slots)
 312 {
 313         host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
 314                                         nr_slots);
 315 }
 316
 317 static inline void host1x_hw_pushbuffer_init(struct host1x *host,
 318                                              struct push_buffer *pb)
 319 {
 320         host->cdma_pb_op->init(pb);
 321 }
 322
 323 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
 324 {
 325         if (host->debug_op && host->debug_op->debug_init)
 326                 host->debug_op->debug_init(de);
 327 }
 328
 329 static inline void host1x_hw_show_channel_cdma(struct host1x *host,
 330                                                struct host1x_channel *channel,
 331                                                struct output *o)
 332 {
 333         host->debug_op->show_channel_cdma(host, channel, o);
 334 }
 335
 336 static inline void host1x_hw_show_channel_fifo(struct host1x *host,
 337                                                struct host1x_channel *channel,
 338                                                struct output *o)
 339 {
 340         host->debug_op->show_channel_fifo(host, channel, o);
 341 }
 342
 343 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
 344 {
 345         host->debug_op->show_mlocks(host, o);
 346 }
 347
 348 extern struct platform_driver tegra_mipi_driver;
 349
 350 #endif