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/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 syncpt_mutex;
 124         struct mutex chlist_mutex;
 125         struct host1x_channel chlist;
 126         unsigned long allocated_channels;
 127         unsigned int num_allocated_channels;
 128
 129         struct dentry *debugfs;
 130
 131         struct mutex devices_lock;
 132         struct list_head devices;
 133
 134         struct list_head list;
 135 };
 136
 137 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
 138 u32 host1x_sync_readl(struct host1x *host1x, u32 r);
 139 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
 140 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
 141
 142 static inline void host1x_hw_syncpt_restore(struct host1x *host,
 143                                             struct host1x_syncpt *sp)
 144 {
 145         host->syncpt_op->restore(sp);
 146 }
 147
 148 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
 149                                                       struct host1x_syncpt *sp)
 150 {
 151         host->syncpt_op->restore_wait_base(sp);
 152 }
 153
 154 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
 155                                                    struct host1x_syncpt *sp)
 156 {
 157         host->syncpt_op->load_wait_base(sp);
 158 }
 159
 160 static inline u32 host1x_hw_syncpt_load(struct host1x *host,
 161                                         struct host1x_syncpt *sp)
 162 {
 163         return host->syncpt_op->load(sp);
 164 }
 165
 166 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
 167                                             struct host1x_syncpt *sp)
 168 {
 169         return host->syncpt_op->cpu_incr(sp);
 170 }
 171
 172 static inline int host1x_hw_syncpt_patch_wait(struct host1x *host,
 173                                               struct host1x_syncpt *sp,
 174                                               void *patch_addr)
 175 {
 176         return host->syncpt_op->patch_wait(sp, patch_addr);
 177 }
 178
 179 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm,
 180                         void (*syncpt_thresh_work)(struct work_struct *))
 181 {
 182         return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work);
 183 }
 184
 185 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
 186                                                        unsigned int id,
 187                                                        u32 thresh)
 188 {
 189         host->intr_op->set_syncpt_threshold(host, id, thresh);
 190 }
 191
 192 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
 193                                                      unsigned int id)
 194 {
 195         host->intr_op->enable_syncpt_intr(host, id);
 196 }
 197
 198 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
 199                                                       unsigned int id)
 200 {
 201         host->intr_op->disable_syncpt_intr(host, id);
 202 }
 203
 204 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
 205 {
 206         host->intr_op->disable_all_syncpt_intrs(host);
 207 }
 208
 209 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
 210 {
 211         return host->intr_op->free_syncpt_irq(host);
 212 }
 213
 214 static inline int host1x_hw_channel_init(struct host1x *host,
 215                                          struct host1x_channel *channel,
 216                                          unsigned int id)
 217 {
 218         return host->channel_op->init(channel, host, id);
 219 }
 220
 221 static inline int host1x_hw_channel_submit(struct host1x *host,
 222                                            struct host1x_job *job)
 223 {
 224         return host->channel_op->submit(job);
 225 }
 226
 227 static inline void host1x_hw_cdma_start(struct host1x *host,
 228                                         struct host1x_cdma *cdma)
 229 {
 230         host->cdma_op->start(cdma);
 231 }
 232
 233 static inline void host1x_hw_cdma_stop(struct host1x *host,
 234                                        struct host1x_cdma *cdma)
 235 {
 236         host->cdma_op->stop(cdma);
 237 }
 238
 239 static inline void host1x_hw_cdma_flush(struct host1x *host,
 240                                         struct host1x_cdma *cdma)
 241 {
 242         host->cdma_op->flush(cdma);
 243 }
 244
 245 static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
 246                                               struct host1x_cdma *cdma,
 247                                               unsigned int syncpt)
 248 {
 249         return host->cdma_op->timeout_init(cdma, syncpt);
 250 }
 251
 252 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
 253                                                   struct host1x_cdma *cdma)
 254 {
 255         host->cdma_op->timeout_destroy(cdma);
 256 }
 257
 258 static inline void host1x_hw_cdma_freeze(struct host1x *host,
 259                                          struct host1x_cdma *cdma)
 260 {
 261         host->cdma_op->freeze(cdma);
 262 }
 263
 264 static inline void host1x_hw_cdma_resume(struct host1x *host,
 265                                          struct host1x_cdma *cdma, u32 getptr)
 266 {
 267         host->cdma_op->resume(cdma, getptr);
 268 }
 269
 270 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
 271                                                    struct host1x_cdma *cdma,
 272                                                    u32 getptr,
 273                                                    u32 syncpt_incrs,
 274                                                    u32 syncval, u32 nr_slots)
 275 {
 276         host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
 277                                         nr_slots);
 278 }
 279
 280 static inline void host1x_hw_pushbuffer_init(struct host1x *host,
 281                                              struct push_buffer *pb)
 282 {
 283         host->cdma_pb_op->init(pb);
 284 }
 285
 286 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
 287 {
 288         if (host->debug_op && host->debug_op->debug_init)
 289                 host->debug_op->debug_init(de);
 290 }
 291
 292 static inline void host1x_hw_show_channel_cdma(struct host1x *host,
 293                                                struct host1x_channel *channel,
 294                                                struct output *o)
 295 {
 296         host->debug_op->show_channel_cdma(host, channel, o);
 297 }
 298
 299 static inline void host1x_hw_show_channel_fifo(struct host1x *host,
 300                                                struct host1x_channel *channel,
 301                                                struct output *o)
 302 {
 303         host->debug_op->show_channel_fifo(host, channel, o);
 304 }
 305
 306 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
 307 {
 308         host->debug_op->show_mlocks(host, o);
 309 }
 310
 311 extern struct platform_driver tegra_mipi_driver;
 312
 313 #endif