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