kernel/drivers/gpu/host1x/dev.h

   1 /*
   2  * Copyright (c) 2012-2013, 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/platform_device.h>
  21 #include <linux/device.h>
  22
  23 #include "channel.h"
  24 #include "syncpt.h"
  25 #include "intr.h"
  26 #include "cdma.h"
  27 #include "job.h"
  28
  29 struct host1x_syncpt;
  30 struct host1x_syncpt_base;
  31 struct host1x_channel;
  32 struct host1x_cdma;
  33 struct host1x_job;
  34 struct push_buffer;
  35 struct output;
  36 struct dentry;
  37
  38 struct host1x_channel_ops {
  39         int (*init)(struct host1x_channel *channel, struct host1x *host,
  40                     unsigned int id);
  41         int (*submit)(struct host1x_job *job);
  42 };
  43
  44 struct host1x_cdma_ops {
  45         void (*start)(struct host1x_cdma *cdma);
  46         void (*stop)(struct host1x_cdma *cdma);
  47         void (*flush)(struct  host1x_cdma *cdma);
  48         int (*timeout_init)(struct host1x_cdma *cdma, u32 syncpt_id);
  49         void (*timeout_destroy)(struct host1x_cdma *cdma);
  50         void (*freeze)(struct host1x_cdma *cdma);
  51         void (*resume)(struct host1x_cdma *cdma, u32 getptr);
  52         void (*timeout_cpu_incr)(struct host1x_cdma *cdma, u32 getptr,
  53                                  u32 syncpt_incrs, u32 syncval, u32 nr_slots);
  54 };
  55
  56 struct host1x_pushbuffer_ops {
  57         void (*init)(struct push_buffer *pb);
  58 };
  59
  60 struct host1x_debug_ops {
  61         void (*debug_init)(struct dentry *de);
  62         void (*show_channel_cdma)(struct host1x *host,
  63                                   struct host1x_channel *ch,
  64                                   struct output *o);
  65         void (*show_channel_fifo)(struct host1x *host,
  66                                   struct host1x_channel *ch,
  67                                   struct output *o);
  68         void (*show_mlocks)(struct host1x *host, struct output *output);
  69
  70 };
  71
  72 struct host1x_syncpt_ops {
  73         void (*restore)(struct host1x_syncpt *syncpt);
  74         void (*restore_wait_base)(struct host1x_syncpt *syncpt);
  75         void (*load_wait_base)(struct host1x_syncpt *syncpt);
  76         u32 (*load)(struct host1x_syncpt *syncpt);
  77         int (*cpu_incr)(struct host1x_syncpt *syncpt);
  78         int (*patch_wait)(struct host1x_syncpt *syncpt, void *patch_addr);
  79 };
  80
  81 struct host1x_intr_ops {
  82         int (*init_host_sync)(struct host1x *host, u32 cpm,
  83                 void (*syncpt_thresh_work)(struct work_struct *work));
  84         void (*set_syncpt_threshold)(
  85                 struct host1x *host, u32 id, u32 thresh);
  86         void (*enable_syncpt_intr)(struct host1x *host, u32 id);
  87         void (*disable_syncpt_intr)(struct host1x *host, u32 id);
  88         void (*disable_all_syncpt_intrs)(struct host1x *host);
  89         int (*free_syncpt_irq)(struct host1x *host);
  90 };
  91
  92 struct host1x_info {
  93         int     nb_channels;            /* host1x: num channels supported */
  94         int     nb_pts;                 /* host1x: num syncpoints supported */
  95         int     nb_bases;               /* host1x: num syncpoints supported */
  96         int     nb_mlocks;              /* host1x: number of mlocks */
  97         int     (*init)(struct host1x *); /* initialize per SoC ops */
  98         int     sync_offset;
  99 };
 100
 101 struct host1x {
 102         const struct host1x_info *info;
 103
 104         void __iomem *regs;
 105         struct host1x_syncpt *syncpt;
 106         struct host1x_syncpt_base *bases;
 107         struct device *dev;
 108         struct clk *clk;
 109
 110         struct mutex intr_mutex;
 111         struct workqueue_struct *intr_wq;
 112         int intr_syncpt_irq;
 113
 114         const struct host1x_syncpt_ops *syncpt_op;
 115         const struct host1x_intr_ops *intr_op;
 116         const struct host1x_channel_ops *channel_op;
 117         const struct host1x_cdma_ops *cdma_op;
 118         const struct host1x_pushbuffer_ops *cdma_pb_op;
 119         const struct host1x_debug_ops *debug_op;
 120
 121         struct host1x_syncpt *nop_sp;
 122
 123         struct mutex chlist_mutex;
 124         struct host1x_channel chlist;
 125         unsigned long allocated_channels;
 126         unsigned int num_allocated_channels;
 127
 128         struct dentry *debugfs;
 129
 130         struct mutex devices_lock;
 131         struct list_head devices;
 132
 133         struct list_head list;
 134 };
 135
 136 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
 137 u32 host1x_sync_readl(struct host1x *host1x, u32 r);
 138 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
 139 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
 140
 141 static inline void host1x_hw_syncpt_restore(struct host1x *host,
 142                                             struct host1x_syncpt *sp)
 143 {
 144         host->syncpt_op->restore(sp);
 145 }
 146
 147 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
 148                                                       struct host1x_syncpt *sp)
 149 {
 150         host->syncpt_op->restore_wait_base(sp);
 151 }
 152
 153 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
 154                                                    struct host1x_syncpt *sp)
 155 {
 156         host->syncpt_op->load_wait_base(sp);
 157 }
 158
 159 static inline u32 host1x_hw_syncpt_load(struct host1x *host,
 160                                         struct host1x_syncpt *sp)
 161 {
 162         return host->syncpt_op->load(sp);
 163 }
 164
 165 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
 166                                             struct host1x_syncpt *sp)
 167 {
 168         return host->syncpt_op->cpu_incr(sp);
 169 }
 170
 171 static inline int host1x_hw_syncpt_patch_wait(struct host1x *host,
 172                                               struct host1x_syncpt *sp,
 173                                               void *patch_addr)
 174 {
 175         return host->syncpt_op->patch_wait(sp, patch_addr);
 176 }
 177
 178 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm,
 179                         void (*syncpt_thresh_work)(struct work_struct *))
 180 {
 181         return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work);
 182 }
 183
 184 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
 185                                                        u32 id, u32 thresh)
 186 {
 187         host->intr_op->set_syncpt_threshold(host, id, thresh);
 188 }
 189
 190 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
 191                                                      u32 id)
 192 {
 193         host->intr_op->enable_syncpt_intr(host, id);
 194 }
 195
 196 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
 197                                                       u32 id)
 198 {
 199         host->intr_op->disable_syncpt_intr(host, id);
 200 }
 201
 202 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
 203 {
 204         host->intr_op->disable_all_syncpt_intrs(host);
 205 }
 206
 207 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
 208 {
 209         return host->intr_op->free_syncpt_irq(host);
 210 }
 211
 212 static inline int host1x_hw_channel_init(struct host1x *host,
 213                                          struct host1x_channel *channel,
 214                                          int chid)
 215 {
 216         return host->channel_op->init(channel, host, chid);
 217 }
 218
 219 static inline int host1x_hw_channel_submit(struct host1x *host,
 220                                            struct host1x_job *job)
 221 {
 222         return host->channel_op->submit(job);
 223 }
 224
 225 static inline void host1x_hw_cdma_start(struct host1x *host,
 226                                         struct host1x_cdma *cdma)
 227 {
 228         host->cdma_op->start(cdma);
 229 }
 230
 231 static inline void host1x_hw_cdma_stop(struct host1x *host,
 232                                        struct host1x_cdma *cdma)
 233 {
 234         host->cdma_op->stop(cdma);
 235 }
 236
 237 static inline void host1x_hw_cdma_flush(struct host1x *host,
 238                                         struct host1x_cdma *cdma)
 239 {
 240         host->cdma_op->flush(cdma);
 241 }
 242
 243 static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
 244                                               struct host1x_cdma *cdma,
 245                                               u32 syncpt_id)
 246 {
 247         return host->cdma_op->timeout_init(cdma, syncpt_id);
 248 }
 249
 250 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
 251                                                   struct host1x_cdma *cdma)
 252 {
 253         host->cdma_op->timeout_destroy(cdma);
 254 }
 255
 256 static inline void host1x_hw_cdma_freeze(struct host1x *host,
 257                                          struct host1x_cdma *cdma)
 258 {
 259         host->cdma_op->freeze(cdma);
 260 }
 261
 262 static inline void host1x_hw_cdma_resume(struct host1x *host,
 263                                          struct host1x_cdma *cdma, u32 getptr)
 264 {
 265         host->cdma_op->resume(cdma, getptr);
 266 }
 267
 268 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
 269                                                    struct host1x_cdma *cdma,
 270                                                    u32 getptr,
 271                                                    u32 syncpt_incrs,
 272                                                    u32 syncval, u32 nr_slots)
 273 {
 274         host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
 275                                         nr_slots);
 276 }
 277
 278 static inline void host1x_hw_pushbuffer_init(struct host1x *host,
 279                                              struct push_buffer *pb)
 280 {
 281         host->cdma_pb_op->init(pb);
 282 }
 283
 284 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
 285 {
 286         if (host->debug_op && host->debug_op->debug_init)
 287                 host->debug_op->debug_init(de);
 288 }
 289
 290 static inline void host1x_hw_show_channel_cdma(struct host1x *host,
 291                                                struct host1x_channel *channel,
 292                                                struct output *o)
 293 {
 294         host->debug_op->show_channel_cdma(host, channel, o);
 295 }
 296
 297 static inline void host1x_hw_show_channel_fifo(struct host1x *host,
 298                                                struct host1x_channel *channel,
 299                                                struct output *o)
 300 {
 301         host->debug_op->show_channel_fifo(host, channel, o);
 302 }
 303
 304 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
 305 {
 306         host->debug_op->show_mlocks(host, o);
 307 }
 308
 309 extern struct platform_driver tegra_mipi_driver;
 310
 311 #endif