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 312