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, unsigned int syncpt);
  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, unsigned int id, u32 thresh);
  86         void (*enable_syncpt_intr)(struct host1x *host, unsigned int id);
  87         void (*disable_syncpt_intr)(struct host1x *host, unsigned int 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         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 };
 101
 102 struct host1x {
 103         const struct host1x_info *info;
 104
 105         void __iomem *regs;
 106         struct host1x_syncpt *syncpt;
 107         struct host1x_syncpt_base *bases;
 108         struct device *dev;
 109         struct clk *clk;
 110
 111         struct mutex intr_mutex;
 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                                                        unsigned int id,
 186                                                        u32 thresh)
 187 {
 188         host->intr_op->set_syncpt_threshold(host, id, thresh);
 189 }
 190
 191 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
 192                                                      unsigned int id)
 193 {
 194         host->intr_op->enable_syncpt_intr(host, id);
 195 }
 196
 197 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
 198                                                       unsigned int id)
 199 {
 200         host->intr_op->disable_syncpt_intr(host, id);
 201 }
 202
 203 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
 204 {
 205         host->intr_op->disable_all_syncpt_intrs(host);
 206 }
 207
 208 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
 209 {
 210         return host->intr_op->free_syncpt_irq(host);
 211 }
 212
 213 static inline int host1x_hw_channel_init(struct host1x *host,
 214                                          struct host1x_channel *channel,
 215                                          unsigned int id)
 216 {
 217         return host->channel_op->init(channel, host, id);
 218 }
 219
 220 static inline int host1x_hw_channel_submit(struct host1x *host,
 221                                            struct host1x_job *job)
 222 {
 223         return host->channel_op->submit(job);
 224 }
 225
 226 static inline void host1x_hw_cdma_start(struct host1x *host,
 227                                         struct host1x_cdma *cdma)
 228 {
 229         host->cdma_op->start(cdma);
 230 }
 231
 232 static inline void host1x_hw_cdma_stop(struct host1x *host,
 233                                        struct host1x_cdma *cdma)
 234 {
 235         host->cdma_op->stop(cdma);
 236 }
 237
 238 static inline void host1x_hw_cdma_flush(struct host1x *host,
 239                                         struct host1x_cdma *cdma)
 240 {
 241         host->cdma_op->flush(cdma);
 242 }
 243
 244 static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
 245                                               struct host1x_cdma *cdma,
 246                                               unsigned int syncpt)
 247 {
 248         return host->cdma_op->timeout_init(cdma, syncpt);
 249 }
 250
 251 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
 252                                                   struct host1x_cdma *cdma)
 253 {
 254         host->cdma_op->timeout_destroy(cdma);
 255 }
 256
 257 static inline void host1x_hw_cdma_freeze(struct host1x *host,
 258                                          struct host1x_cdma *cdma)
 259 {
 260         host->cdma_op->freeze(cdma);
 261 }
 262
 263 static inline void host1x_hw_cdma_resume(struct host1x *host,
 264                                          struct host1x_cdma *cdma, u32 getptr)
 265 {
 266         host->cdma_op->resume(cdma, getptr);
 267 }
 268
 269 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
 270                                                    struct host1x_cdma *cdma,
 271                                                    u32 getptr,
 272                                                    u32 syncpt_incrs,
 273                                                    u32 syncval, u32 nr_slots)
 274 {
 275         host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
 276                                         nr_slots);
 277 }
 278
 279 static inline void host1x_hw_pushbuffer_init(struct host1x *host,
 280                                              struct push_buffer *pb)
 281 {
 282         host->cdma_pb_op->init(pb);
 283 }
 284
 285 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
 286 {
 287         if (host->debug_op && host->debug_op->debug_init)
 288                 host->debug_op->debug_init(de);
 289 }
 290
 291 static inline void host1x_hw_show_channel_cdma(struct host1x *host,
 292                                                struct host1x_channel *channel,
 293                                                struct output *o)
 294 {
 295         host->debug_op->show_channel_cdma(host, channel, o);
 296 }
 297
 298 static inline void host1x_hw_show_channel_fifo(struct host1x *host,
 299                                                struct host1x_channel *channel,
 300                                                struct output *o)
 301 {
 302         host->debug_op->show_channel_fifo(host, channel, o);
 303 }
 304
 305 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
 306 {
 307         host->debug_op->show_mlocks(host, o);
 308 }
 309
 310 extern struct platform_driver tegra_mipi_driver;
 311
 312 #endif