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         void *drm_data;
 129 };
 130
 131 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
 132 u32 host1x_sync_readl(struct host1x *host1x, u32 r);
 133 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v);
 134 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r);
 135
 136 static inline void host1x_hw_syncpt_restore(struct host1x *host,
 137                                             struct host1x_syncpt *sp)
 138 {
 139         host->syncpt_op->restore(sp);
 140 }
 141
 142 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host,
 143                                                       struct host1x_syncpt *sp)
 144 {
 145         host->syncpt_op->restore_wait_base(sp);
 146 }
 147
 148 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host,
 149                                                    struct host1x_syncpt *sp)
 150 {
 151         host->syncpt_op->load_wait_base(sp);
 152 }
 153
 154 static inline u32 host1x_hw_syncpt_load(struct host1x *host,
 155                                         struct host1x_syncpt *sp)
 156 {
 157         return host->syncpt_op->load(sp);
 158 }
 159
 160 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
 161                                             struct host1x_syncpt *sp)
 162 {
 163         return host->syncpt_op->cpu_incr(sp);
 164 }
 165
 166 static inline int host1x_hw_syncpt_patch_wait(struct host1x *host,
 167                                               struct host1x_syncpt *sp,
 168                                               void *patch_addr)
 169 {
 170         return host->syncpt_op->patch_wait(sp, patch_addr);
 171 }
 172
 173 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm,
 174                         void (*syncpt_thresh_work)(struct work_struct *))
 175 {
 176         return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work);
 177 }
 178
 179 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host,
 180                                                        u32 id, u32 thresh)
 181 {
 182         host->intr_op->set_syncpt_threshold(host, id, thresh);
 183 }
 184
 185 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host,
 186                                                      u32 id)
 187 {
 188         host->intr_op->enable_syncpt_intr(host, id);
 189 }
 190
 191 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host,
 192                                                       u32 id)
 193 {
 194         host->intr_op->disable_syncpt_intr(host, id);
 195 }
 196
 197 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host)
 198 {
 199         host->intr_op->disable_all_syncpt_intrs(host);
 200 }
 201
 202 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host)
 203 {
 204         return host->intr_op->free_syncpt_irq(host);
 205 }
 206
 207 static inline int host1x_hw_channel_init(struct host1x *host,
 208                                          struct host1x_channel *channel,
 209                                          int chid)
 210 {
 211         return host->channel_op->init(channel, host, chid);
 212 }
 213
 214 static inline int host1x_hw_channel_submit(struct host1x *host,
 215                                            struct host1x_job *job)
 216 {
 217         return host->channel_op->submit(job);
 218 }
 219
 220 static inline void host1x_hw_cdma_start(struct host1x *host,
 221                                         struct host1x_cdma *cdma)
 222 {
 223         host->cdma_op->start(cdma);
 224 }
 225
 226 static inline void host1x_hw_cdma_stop(struct host1x *host,
 227                                        struct host1x_cdma *cdma)
 228 {
 229         host->cdma_op->stop(cdma);
 230 }
 231
 232 static inline void host1x_hw_cdma_flush(struct host1x *host,
 233                                         struct host1x_cdma *cdma)
 234 {
 235         host->cdma_op->flush(cdma);
 236 }
 237
 238 static inline int host1x_hw_cdma_timeout_init(struct host1x *host,
 239                                               struct host1x_cdma *cdma,
 240                                               u32 syncpt_id)
 241 {
 242         return host->cdma_op->timeout_init(cdma, syncpt_id);
 243 }
 244
 245 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host,
 246                                                   struct host1x_cdma *cdma)
 247 {
 248         host->cdma_op->timeout_destroy(cdma);
 249 }
 250
 251 static inline void host1x_hw_cdma_freeze(struct host1x *host,
 252                                          struct host1x_cdma *cdma)
 253 {
 254         host->cdma_op->freeze(cdma);
 255 }
 256
 257 static inline void host1x_hw_cdma_resume(struct host1x *host,
 258                                          struct host1x_cdma *cdma, u32 getptr)
 259 {
 260         host->cdma_op->resume(cdma, getptr);
 261 }
 262
 263 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host,
 264                                                    struct host1x_cdma *cdma,
 265                                                    u32 getptr,
 266                                                    u32 syncpt_incrs,
 267                                                    u32 syncval, u32 nr_slots)
 268 {
 269         host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval,
 270                                         nr_slots);
 271 }
 272
 273 static inline void host1x_hw_pushbuffer_init(struct host1x *host,
 274                                              struct push_buffer *pb)
 275 {
 276         host->cdma_pb_op->init(pb);
 277 }
 278
 279 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de)
 280 {
 281         if (host->debug_op && host->debug_op->debug_init)
 282                 host->debug_op->debug_init(de);
 283 }
 284
 285 static inline void host1x_hw_show_channel_cdma(struct host1x *host,
 286                                                struct host1x_channel *channel,
 287                                                struct output *o)
 288 {
 289         host->debug_op->show_channel_cdma(host, channel, o);
 290 }
 291
 292 static inline void host1x_hw_show_channel_fifo(struct host1x *host,
 293                                                struct host1x_channel *channel,
 294                                                struct output *o)
 295 {
 296         host->debug_op->show_channel_fifo(host, channel, o);
 297 }
 298
 299 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o)
 300 {
 301         host->debug_op->show_mlocks(host, o);
 302 }
 303
 304 extern struct platform_driver tegra_hdmi_driver;
 305 extern struct platform_driver tegra_dc_driver;
 306 extern struct platform_driver tegra_gr2d_driver;
 307
 308 #endif