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 314