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          * 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