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 313