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 "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_hypervisor; /* has hypervisor registers */
 101         unsigned int num_sid_entries;
 102         const struct host1x_sid_entry *sid_table;
 103 };
 104
 105 struct host1x {
 106         const struct host1x_info *info;
 107
 108         void __iomem *regs;
 109         void __iomem *hv_regs; /* hypervisor region */
 110         struct host1x_syncpt *syncpt;
 111         struct host1x_syncpt_base *bases;
 112         struct device *dev;
 113         struct clk *clk;
 114         struct reset_control *rst;
 115
 116         struct iommu_group *group;
 117         struct iommu_domain *domain;
 118         struct iova_domain iova;
 119         dma_addr_t iova_end;
 120
 121         struct mutex intr_mutex;
 122         int intr_syncpt_irq;
 123
 124         const struct host1x_syncpt_ops *syncpt_op;
 125         const struct host1x_intr_ops *intr_op;
 126         const struct host1x_channel_ops *channel_op;
 127         const struct host1x_cdma_ops *cdma_op;
 128         const struct host1x_pushbuffer_ops *cdma_pb_op;
 129         const struct host1x_debug_ops *debug_op;
 130
 131         struct host1x_syncpt *nop_sp;
 132
 133         struct mutex syncpt_mutex;
 134
 135         struct host1x_channel_list channel_list;
 136
 137         struct dentry *debugfs;
 138
 139         struct mutex devices_lock;
 140         struct list_head devices;
 141
 142         struct list_head list;
 143 };
 144
 145 void host1x_hypervisor_writel(struct host1x *host1x, u32 r, u32 v);
 146 u32 host1x_hypervisor_readl(struct host1x *host1x, u32 r);
 147 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
 148 u32 host1x_sync_readl(struct host1x *host1x, u32 r);
 149 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
 150 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
 151
 152 static inline void host1x_hw_syncpt_restore(struct host1x *host,
 153                                             struct host1x_syncpt *sp)
 154 {
 155         host->syncpt_op->restore(sp);
 156 }
 157
 158 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
 159                                                       struct host1x_syncpt *sp)
 160 {
 161         host->syncpt_op->restore_wait_base(sp);
 162 }
 163
 164 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
 165                                                    struct host1x_syncpt *sp)
 166 {
 167         host->syncpt_op->load_wait_base(sp);
 168 }
 169
 170 static inline u32 host1x_hw_syncpt_load(struct host1x *host,
 171                                         struct host1x_syncpt *sp)
 172 {
 173         return host->syncpt_op->load(sp);
 174 }
 175
 176 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
 177                                             struct host1x_syncpt *sp)
 178 {
 179         return host->syncpt_op->cpu_incr(sp);
 180 }
 181
 182 static inline void host1x_hw_syncpt_assign_to_channel(
 183         struct host1x *host, struct host1x_syncpt *sp,
 184         struct host1x_channel *ch)
 185 {
 186         return host->syncpt_op->assign_to_channel(sp, ch);
 187 }
 188
 189 static inline void host1x_hw_syncpt_enable_protection(struct host1x *host)
 190 {
 191         return host->syncpt_op->enable_protection(host);
 192 }
 193
 194 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm,
 195                         void (*syncpt_thresh_work)(struct work_struct *))
 196 {
 197         return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work);
 198 }
 199
 200 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
 201                                                        unsigned int id,
 202                                                        u32 thresh)
 203 {
 204         host->intr_op->set_syncpt_threshold(host, id, thresh);
 205 }
 206
 207 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
 208                                                      unsigned int id)
 209 {
 210         host->intr_op->enable_syncpt_intr(host, id);
 211 }
 212
 213 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
 214                                                       unsigned int id)
 215 {
 216         host->intr_op->disable_syncpt_intr(host, id);
 217 }
 218
 219 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
 220 {
 221         host->intr_op->disable_all_syncpt_intrs(host);
 222 }
 223
 224 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
 225 {
 226         return host->intr_op->free_syncpt_irq(host);
 227 }
 228
 229 static inline int host1x_hw_channel_init(struct host1x *host,
 230                                          struct host1x_channel *channel,
 231                                          unsigned int id)
 232 {
 233         return host->channel_op->init(channel, host, id);
 234 }
 235
 236 static inline int host1x_hw_channel_submit(struct host1x *host,
 237                                            struct host1x_job *job)
 238 {
 239         return host->channel_op->submit(job);
 240 }
 241
 242 static inline void host1x_hw_cdma_start(struct host1x *host,
 243                                         struct host1x_cdma *cdma)
 244 {
 245         host->cdma_op->start(cdma);
 246 }
 247
 248 static inline void host1x_hw_cdma_stop(struct host1x *host,
 249                                        struct host1x_cdma *cdma)
 250 {
 251         host->cdma_op->stop(cdma);
 252 }
 253
 254 static inline void host1x_hw_cdma_flush(struct host1x *host,
 255                                         struct host1x_cdma *cdma)
 256 {
 257         host->cdma_op->flush(cdma);
 258 }
 259
 260 static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
 261                                               struct host1x_cdma *cdma,
 262                                               unsigned int syncpt)
 263 {
 264         return host->cdma_op->timeout_init(cdma, syncpt);
 265 }
 266
 267 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
 268                                                   struct host1x_cdma *cdma)
 269 {
 270         host->cdma_op->timeout_destroy(cdma);
 271 }
 272
 273 static inline void host1x_hw_cdma_freeze(struct host1x *host,
 274                                          struct host1x_cdma *cdma)
 275 {
 276         host->cdma_op->freeze(cdma);
 277 }
 278
 279 static inline void host1x_hw_cdma_resume(struct host1x *host,
 280                                          struct host1x_cdma *cdma, u32 getptr)
 281 {
 282         host->cdma_op->resume(cdma, getptr);
 283 }
 284
 285 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
 286                                                    struct host1x_cdma *cdma,
 287                                                    u32 getptr,
 288                                                    u32 syncpt_incrs,
 289                                                    u32 syncval, u32 nr_slots)
 290 {
 291         host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
 292                                         nr_slots);
 293 }
 294
 295 static inline void host1x_hw_pushbuffer_init(struct host1x *host,
 296                                              struct push_buffer *pb)
 297 {
 298         host->cdma_pb_op->init(pb);
 299 }
 300
 301 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
 302 {
 303         if (host->debug_op && host->debug_op->debug_init)
 304                 host->debug_op->debug_init(de);
 305 }
 306
 307 static inline void host1x_hw_show_channel_cdma(struct host1x *host,
 308                                                struct host1x_channel *channel,
 309                                                struct output *o)
 310 {
 311         host->debug_op->show_channel_cdma(host, channel, o);
 312 }
 313
 314 static inline void host1x_hw_show_channel_fifo(struct host1x *host,
 315                                                struct host1x_channel *channel,
 316                                                struct output *o)
 317 {
 318         host->debug_op->show_channel_fifo(host, channel, o);
 319 }
 320
 321 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
 322 {
 323         host->debug_op->show_mlocks(host, o);
 324 }
 325
 326 extern struct platform_driver tegra_mipi_driver;
 327
 328 #endif