drivers/gpu/host1x/dev.h

   1 /*
   2  * Copyright (c) 2012-2015, NVIDIA Corporation.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms and conditions of the GNU General Public License,
   6  * version 2, as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  */
  16
  17 #ifndef HOST1X_DEV_H
  18 #define HOST1X_DEV_H
  19
  20 #include <linux/device.h>
  21 #include <linux/iommu.h>
  22 #include <linux/iova.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/reset.h>
  25
  26 #include "cdma.h"
  27 #include "channel.h"
  28 #include "intr.h"
  29 #include "job.h"
  30 #include "syncpt.h"
  31
  32 struct host1x_syncpt;
  33 struct host1x_syncpt_base;
  34 struct host1x_channel;
  35 struct host1x_cdma;
  36 struct host1x_job;
  37 struct push_buffer;
  38 struct output;
  39 struct dentry;
  40
  41 struct host1x_channel_ops {
  42         int (*init)(struct host1x_channel *channel, struct host1x *host,
  43                     unsigned int id);
  44         int (*submit)(struct host1x_job *job);
  45 };
  46
  47 struct host1x_cdma_ops {
  48         void (*start)(struct host1x_cdma *cdma);
  49         void (*stop)(struct host1x_cdma *cdma);
  50         void (*flush)(struct  host1x_cdma *cdma);
  51         int (*timeout_init)(struct host1x_cdma *cdma, unsigned int syncpt);
  52         void (*timeout_destroy)(struct host1x_cdma *cdma);
  53         void (*freeze)(struct host1x_cdma *cdma);
  54         void (*resume)(struct host1x_cdma *cdma, u32 getptr);
  55         void (*timeout_cpu_incr)(struct host1x_cdma *cdma, u32 getptr,
  56                                  u32 syncpt_incrs, u32 syncval, u32 nr_slots);
  57 };
  58
  59 struct host1x_pushbuffer_ops {
  60         void (*init)(struct push_buffer *pb);
  61 };
  62
  63 struct host1x_debug_ops {
  64         void (*debug_init)(struct dentry *de);
  65         void (*show_channel_cdma)(struct host1x *host,
  66                                   struct host1x_channel *ch,
  67                                   struct output *o);
  68         void (*show_channel_fifo)(struct host1x *host,
  69                                   struct host1x_channel *ch,
  70                                   struct output *o);
  71         void (*show_mlocks)(struct host1x *host, struct output *output);
  72
  73 };
  74
  75 struct host1x_syncpt_ops {
  76         void (*restore)(struct host1x_syncpt *syncpt);
  77         void (*restore_wait_base)(struct host1x_syncpt *syncpt);
  78         void (*load_wait_base)(struct host1x_syncpt *syncpt);
  79         u32 (*load)(struct host1x_syncpt *syncpt);
  80         int (*cpu_incr)(struct host1x_syncpt *syncpt);
  81         int (*patch_wait)(struct host1x_syncpt *syncpt, void *patch_addr);
  82 };
  83
  84 struct host1x_intr_ops {
  85         int (*init_host_sync)(struct host1x *host, u32 cpm,
  86                 void (*syncpt_thresh_work)(struct work_struct *work));
  87         void (*set_syncpt_threshold)(
  88                 struct host1x *host, unsigned int id, u32 thresh);
  89         void (*enable_syncpt_intr)(struct host1x *host, unsigned int id);
  90         void (*disable_syncpt_intr)(struct host1x *host, unsigned int id);
  91         void (*disable_all_syncpt_intrs)(struct host1x *host);
  92         int (*free_syncpt_irq)(struct host1x *host);
  93 };
  94
  95 struct host1x_info {
  96         unsigned int nb_channels; /* host1x: number of channels supported */
  97         unsigned int nb_pts; /* host1x: number of syncpoints supported */
  98         unsigned int nb_bases; /* host1x: number of syncpoint bases supported */
  99         unsigned int nb_mlocks; /* host1x: number of mlocks supported */
 100         int (*init)(struct host1x *host1x); /* initialize per SoC ops */
 101         unsigned int sync_offset; /* offset of syncpoint registers */
 102         u64 dma_mask; /* mask of addressable memory */
 103 };
 104
 105 struct host1x {
 106         const struct host1x_info *info;
 107
 108         void __iomem *regs;
 109         struct host1x_syncpt *syncpt;
 110         struct host1x_syncpt_base *bases;
 111         struct device *dev;
 112         struct clk *clk;
 113         struct reset_control *rst;
 114
 115         struct iommu_domain *domain;
 116         struct iova_domain iova;
 117         dma_addr_t iova_end;
 118
 119         struct mutex intr_mutex;
 120         int intr_syncpt_irq;
 121
 122         const struct host1x_syncpt_ops *syncpt_op;
 123         const struct host1x_intr_ops *intr_op;
 124         const struct host1x_channel_ops *channel_op;
 125         const struct host1x_cdma_ops *cdma_op;
 126         const struct host1x_pushbuffer_ops *cdma_pb_op;
 127         const struct host1x_debug_ops *debug_op;
 128
 129         struct host1x_syncpt *nop_sp;
 130
 131         struct mutex syncpt_mutex;
 132         struct mutex chlist_mutex;
 133         struct host1x_channel chlist;
 134         unsigned long allocated_channels;
 135         unsigned int num_allocated_channels;
 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_sync_writel(struct host1x *host1x, u32 r, u32 v);
 146 u32 host1x_sync_readl(struct host1x *host1x, u32 r);
 147 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
 148 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
 149
 150 static inline void host1x_hw_syncpt_restore(struct host1x *host,
 151                                             struct host1x_syncpt *sp)
 152 {
 153         host->syncpt_op->restore(sp);
 154 }
 155
 156 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
 157                                                       struct host1x_syncpt *sp)
 158 {
 159         host->syncpt_op->restore_wait_base(sp);
 160 }
 161
 162 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
 163                                                    struct host1x_syncpt *sp)
 164 {
 165         host->syncpt_op->load_wait_base(sp);
 166 }
 167
 168 static inline u32 host1x_hw_syncpt_load(struct host1x *host,
 169                                         struct host1x_syncpt *sp)
 170 {
 171         return host->syncpt_op->load(sp);
 172 }
 173
 174 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
 175                                             struct host1x_syncpt *sp)
 176 {
 177         return host->syncpt_op->cpu_incr(sp);
 178 }
 179
 180 static inline int host1x_hw_syncpt_patch_wait(struct host1x *host,
 181                                               struct host1x_syncpt *sp,
 182                                               void *patch_addr)
 183 {
 184         return host->syncpt_op->patch_wait(sp, patch_addr);
 185 }
 186
 187 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm,
 188                         void (*syncpt_thresh_work)(struct work_struct *))
 189 {
 190         return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work);
 191 }
 192
 193 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
 194                                                        unsigned int id,
 195                                                        u32 thresh)
 196 {
 197         host->intr_op->set_syncpt_threshold(host, id, thresh);
 198 }
 199
 200 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
 201                                                      unsigned int id)
 202 {
 203         host->intr_op->enable_syncpt_intr(host, id);
 204 }
 205
 206 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
 207                                                       unsigned int id)
 208 {
 209         host->intr_op->disable_syncpt_intr(host, id);
 210 }
 211
 212 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
 213 {
 214         host->intr_op->disable_all_syncpt_intrs(host);
 215 }
 216
 217 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
 218 {
 219         return host->intr_op->free_syncpt_irq(host);
 220 }
 221
 222 static inline int host1x_hw_channel_init(struct host1x *host,
 223                                          struct host1x_channel *channel,
 224                                          unsigned int id)
 225 {
 226         return host->channel_op->init(channel, host, id);
 227 }
 228
 229 static inline int host1x_hw_channel_submit(struct host1x *host,
 230                                            struct host1x_job *job)
 231 {
 232         return host->channel_op->submit(job);
 233 }
 234
 235 static inline void host1x_hw_cdma_start(struct host1x *host,
 236                                         struct host1x_cdma *cdma)
 237 {
 238         host->cdma_op->start(cdma);
 239 }
 240
 241 static inline void host1x_hw_cdma_stop(struct host1x *host,
 242                                        struct host1x_cdma *cdma)
 243 {
 244         host->cdma_op->stop(cdma);
 245 }
 246
 247 static inline void host1x_hw_cdma_flush(struct host1x *host,
 248                                         struct host1x_cdma *cdma)
 249 {
 250         host->cdma_op->flush(cdma);
 251 }
 252
 253 static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
 254                                               struct host1x_cdma *cdma,
 255                                               unsigned int syncpt)
 256 {
 257         return host->cdma_op->timeout_init(cdma, syncpt);
 258 }
 259
 260 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
 261                                                   struct host1x_cdma *cdma)
 262 {
 263         host->cdma_op->timeout_destroy(cdma);
 264 }
 265
 266 static inline void host1x_hw_cdma_freeze(struct host1x *host,
 267                                          struct host1x_cdma *cdma)
 268 {
 269         host->cdma_op->freeze(cdma);
 270 }
 271
 272 static inline void host1x_hw_cdma_resume(struct host1x *host,
 273                                          struct host1x_cdma *cdma, u32 getptr)
 274 {
 275         host->cdma_op->resume(cdma, getptr);
 276 }
 277
 278 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
 279                                                    struct host1x_cdma *cdma,
 280                                                    u32 getptr,
 281                                                    u32 syncpt_incrs,
 282                                                    u32 syncval, u32 nr_slots)
 283 {
 284         host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
 285                                         nr_slots);
 286 }
 287
 288 static inline void host1x_hw_pushbuffer_init(struct host1x *host,
 289                                              struct push_buffer *pb)
 290 {
 291         host->cdma_pb_op->init(pb);
 292 }
 293
 294 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
 295 {
 296         if (host->debug_op && host->debug_op->debug_init)
 297                 host->debug_op->debug_init(de);
 298 }
 299
 300 static inline void host1x_hw_show_channel_cdma(struct host1x *host,
 301                                                struct host1x_channel *channel,
 302                                                struct output *o)
 303 {
 304         host->debug_op->show_channel_cdma(host, channel, o);
 305 }
 306
 307 static inline void host1x_hw_show_channel_fifo(struct host1x *host,
 308                                                struct host1x_channel *channel,
 309                                                struct output *o)
 310 {
 311         host->debug_op->show_channel_fifo(host, channel, o);
 312 }
 313
 314 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
 315 {
 316         host->debug_op->show_mlocks(host, o);
 317 }
 318
 319 extern struct platform_driver tegra_mipi_driver;
 320
 321 #endif