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_irqs[8];
 128         int num_syncpt_irqs;
 129         struct host1x_syncpt *syncpt;
 130         struct host1x_syncpt_base *bases;
 131         struct device *dev;
 132         struct clk *clk;
 133         struct reset_control_bulk_data resets[2];
 134         unsigned int nresets;
 135
 136         struct iommu_group *group;
 137         struct iommu_domain *domain;
 138         struct iova_domain iova;
 139         dma_addr_t iova_end;
 140
 141         struct mutex intr_mutex;
 142
 143         const struct host1x_syncpt_ops *syncpt_op;
 144         const struct host1x_intr_ops *intr_op;
 145         const struct host1x_channel_ops *channel_op;
 146         const struct host1x_cdma_ops *cdma_op;
 147         const struct host1x_pushbuffer_ops *cdma_pb_op;
 148         const struct host1x_debug_ops *debug_op;
 149
 150         struct host1x_syncpt *nop_sp;
 151
 152         struct mutex syncpt_mutex;
 153
 154         struct host1x_channel_list channel_list;
 155         struct host1x_memory_context_list context_list;
 156
 157         struct dentry *debugfs;
 158
 159         struct mutex devices_lock;
 160         struct list_head devices;
 161
 162         struct list_head list;
 163
 164         struct device_dma_parameters dma_parms;
 165
 166         struct host1x_bo_cache cache;
 167 };
 168
 169 void host1x_common_writel(struct host1x *host1x, u32 v, u32 r);
 170 void host1x_hypervisor_writel(struct host1x *host1x, u32 r, u32 v);
 171 u32 host1x_hypervisor_readl(struct host1x *host1x, u32 r);
 172 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
 173 u32 host1x_sync_readl(struct host1x *host1x, u32 r);
 174 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
 175 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
 176
 177 static inline void host1x_hw_syncpt_restore(struct host1x *host,
 178                                             struct host1x_syncpt *sp)
 179 {
 180         host->syncpt_op->restore(sp);
 181 }
 182
 183 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
 184                                                       struct host1x_syncpt *sp)
 185 {
 186         host->syncpt_op->restore_wait_base(sp);
 187 }
 188
 189 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
 190                                                    struct host1x_syncpt *sp)
 191 {
 192         host->syncpt_op->load_wait_base(sp);
 193 }
 194
 195 static inline u32 host1x_hw_syncpt_load(struct host1x *host,
 196                                         struct host1x_syncpt *sp)
 197 {
 198         return host->syncpt_op->load(sp);
 199 }
 200
 201 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
 202                                             struct host1x_syncpt *sp)
 203 {
 204         return host->syncpt_op->cpu_incr(sp);
 205 }
 206
 207 static inline void host1x_hw_syncpt_assign_to_channel(
 208         struct host1x *host, struct host1x_syncpt *sp,
 209         struct host1x_channel *ch)
 210 {
 211         return host->syncpt_op->assign_to_channel(sp, ch);
 212 }
 213
 214 static inline void host1x_hw_syncpt_enable_protection(struct host1x *host)
 215 {
 216         return host->syncpt_op->enable_protection(host);
 217 }
 218
 219 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm)
 220 {
 221         return host->intr_op->init_host_sync(host, cpm);
 222 }
 223
 224 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
 225                                                        unsigned int id,
 226                                                        u32 thresh)
 227 {
 228         host->intr_op->set_syncpt_threshold(host, id, thresh);
 229 }
 230
 231 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
 232                                                      unsigned int id)
 233 {
 234         host->intr_op->enable_syncpt_intr(host, id);
 235 }
 236
 237 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
 238                                                       unsigned int id)
 239 {
 240         host->intr_op->disable_syncpt_intr(host, id);
 241 }
 242
 243 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
 244 {
 245         host->intr_op->disable_all_syncpt_intrs(host);
 246 }
 247
 248 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
 249 {
 250         return host->intr_op->free_syncpt_irq(host);
 251 }
 252
 253 static inline int host1x_hw_channel_init(struct host1x *host,
 254                                          struct host1x_channel *channel,
 255                                          unsigned int id)
 256 {
 257         return host->channel_op->init(channel, host, id);
 258 }
 259
 260 static inline int host1x_hw_channel_submit(struct host1x *host,
 261                                            struct host1x_job *job)
 262 {
 263         return host->channel_op->submit(job);
 264 }
 265
 266 static inline void host1x_hw_cdma_start(struct host1x *host,
 267                                         struct host1x_cdma *cdma)
 268 {
 269         host->cdma_op->start(cdma);
 270 }
 271
 272 static inline void host1x_hw_cdma_stop(struct host1x *host,
 273                                        struct host1x_cdma *cdma)
 274 {
 275         host->cdma_op->stop(cdma);
 276 }
 277
 278 static inline void host1x_hw_cdma_flush(struct host1x *host,
 279                                         struct host1x_cdma *cdma)
 280 {
 281         host->cdma_op->flush(cdma);
 282 }
 283
 284 static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
 285                                               struct host1x_cdma *cdma)
 286 {
 287         return host->cdma_op->timeout_init(cdma);
 288 }
 289
 290 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
 291                                                   struct host1x_cdma *cdma)
 292 {
 293         host->cdma_op->timeout_destroy(cdma);
 294 }
 295
 296 static inline void host1x_hw_cdma_freeze(struct host1x *host,
 297                                          struct host1x_cdma *cdma)
 298 {
 299         host->cdma_op->freeze(cdma);
 300 }
 301
 302 static inline void host1x_hw_cdma_resume(struct host1x *host,
 303                                          struct host1x_cdma *cdma, u32 getptr)
 304 {
 305         host->cdma_op->resume(cdma, getptr);
 306 }
 307
 308 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
 309                                                    struct host1x_cdma *cdma,
 310                                                    u32 getptr,
 311                                                    u32 syncpt_incrs,
 312                                                    u32 syncval, u32 nr_slots)
 313 {
 314         host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
 315                                         nr_slots);
 316 }
 317
 318 static inline void host1x_hw_pushbuffer_init(struct host1x *host,
 319                                              struct push_buffer *pb)
 320 {
 321         host->cdma_pb_op->init(pb);
 322 }
 323
 324 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
 325 {
 326         if (host->debug_op && host->debug_op->debug_init)
 327                 host->debug_op->debug_init(de);
 328 }
 329
 330 static inline void host1x_hw_show_channel_cdma(struct host1x *host,
 331                                                struct host1x_channel *channel,
 332                                                struct output *o)
 333 {
 334         host->debug_op->show_channel_cdma(host, channel, o);
 335 }
 336
 337 static inline void host1x_hw_show_channel_fifo(struct host1x *host,
 338                                                struct host1x_channel *channel,
 339                                                struct output *o)
 340 {
 341         host->debug_op->show_channel_fifo(host, channel, o);
 342 }
 343
 344 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
 345 {
 346         host->debug_op->show_mlocks(host, o);
 347 }
 348
 349 extern struct platform_driver tegra_mipi_driver;
 350
 351 #endif