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/device.h> 21 #include <linux/iommu.h> 22 #include <linux/iova.h> 23 #include <linux/platform_device.h> 24 #include <linux/reset.h> 25 26 #include "cdma.h" 27 #include "channel.h" 28 #include "intr.h" 29 #include "job.h" 30 #include "syncpt.h" 31 32 struct host1x_syncpt; 33 struct host1x_syncpt_base; 34 struct host1x_channel; 35 struct host1x_cdma; 36 struct host1x_job; 37 struct push_buffer; 38 struct output; 39 struct dentry; 40 41 struct host1x_channel_ops { 42 int (*init)(struct host1x_channel *channel, struct host1x *host, 43 unsigned int id); 44 int (*submit)(struct host1x_job *job); 45 }; 46 47 struct host1x_cdma_ops { 48 void (*start)(struct host1x_cdma *cdma); 49 void (*stop)(struct host1x_cdma *cdma); 50 void (*flush)(struct host1x_cdma *cdma); 51 int (*timeout_init)(struct host1x_cdma *cdma, unsigned int syncpt); 52 void (*timeout_destroy)(struct host1x_cdma *cdma); 53 void (*freeze)(struct host1x_cdma *cdma); 54 void (*resume)(struct host1x_cdma *cdma, u32 getptr); 55 void (*timeout_cpu_incr)(struct host1x_cdma *cdma, u32 getptr, 56 u32 syncpt_incrs, u32 syncval, u32 nr_slots); 57 }; 58 59 struct host1x_pushbuffer_ops { 60 void (*init)(struct push_buffer *pb); 61 }; 62 63 struct host1x_debug_ops { 64 void (*debug_init)(struct dentry *de); 65 void (*show_channel_cdma)(struct host1x *host, 66 struct host1x_channel *ch, 67 struct output *o); 68 void (*show_channel_fifo)(struct host1x *host, 69 struct host1x_channel *ch, 70 struct output *o); 71 void (*show_mlocks)(struct host1x *host, struct output *output); 72 73 }; 74 75 struct host1x_syncpt_ops { 76 void (*restore)(struct host1x_syncpt *syncpt); 77 void (*restore_wait_base)(struct host1x_syncpt *syncpt); 78 void (*load_wait_base)(struct host1x_syncpt *syncpt); 79 u32 (*load)(struct host1x_syncpt *syncpt); 80 int (*cpu_incr)(struct host1x_syncpt *syncpt); 81 int (*patch_wait)(struct host1x_syncpt *syncpt, void *patch_addr); 82 }; 83 84 struct host1x_intr_ops { 85 int (*init_host_sync)(struct host1x *host, u32 cpm, 86 void (*syncpt_thresh_work)(struct work_struct *work)); 87 void (*set_syncpt_threshold)( 88 struct host1x *host, unsigned int id, u32 thresh); 89 void (*enable_syncpt_intr)(struct host1x *host, unsigned int id); 90 void (*disable_syncpt_intr)(struct host1x *host, unsigned int id); 91 void (*disable_all_syncpt_intrs)(struct host1x *host); 92 int (*free_syncpt_irq)(struct host1x *host); 93 }; 94 95 struct host1x_info { 96 unsigned int nb_channels; /* host1x: number of channels supported */ 97 unsigned int nb_pts; /* host1x: number of syncpoints supported */ 98 unsigned int nb_bases; /* host1x: number of syncpoint bases supported */ 99 unsigned int nb_mlocks; /* host1x: number of mlocks supported */ 100 int (*init)(struct host1x *host1x); /* initialize per SoC ops */ 101 unsigned int sync_offset; /* offset of syncpoint registers */ 102 u64 dma_mask; /* mask of addressable memory */ 103 }; 104 105 struct host1x { 106 const struct host1x_info *info; 107 108 void __iomem *regs; 109 struct host1x_syncpt *syncpt; 110 struct host1x_syncpt_base *bases; 111 struct device *dev; 112 struct clk *clk; 113 struct reset_control *rst; 114 115 struct iommu_domain *domain; 116 struct iova_domain iova; 117 dma_addr_t iova_end; 118 119 struct mutex intr_mutex; 120 int intr_syncpt_irq; 121 122 const struct host1x_syncpt_ops *syncpt_op; 123 const struct host1x_intr_ops *intr_op; 124 const struct host1x_channel_ops *channel_op; 125 const struct host1x_cdma_ops *cdma_op; 126 const struct host1x_pushbuffer_ops *cdma_pb_op; 127 const struct host1x_debug_ops *debug_op; 128 129 struct host1x_syncpt *nop_sp; 130 131 struct mutex syncpt_mutex; 132 133 struct host1x_channel_list channel_list; 134 135 struct dentry *debugfs; 136 137 struct mutex devices_lock; 138 struct list_head devices; 139 140 struct list_head list; 141 }; 142 143 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v); 144 u32 host1x_sync_readl(struct host1x *host1x, u32 r); 145 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v); 146 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r); 147 148 static inline void host1x_hw_syncpt_restore(struct host1x *host, 149 struct host1x_syncpt *sp) 150 { 151 host->syncpt_op->restore(sp); 152 } 153 154 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host, 155 struct host1x_syncpt *sp) 156 { 157 host->syncpt_op->restore_wait_base(sp); 158 } 159 160 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host, 161 struct host1x_syncpt *sp) 162 { 163 host->syncpt_op->load_wait_base(sp); 164 } 165 166 static inline u32 host1x_hw_syncpt_load(struct host1x *host, 167 struct host1x_syncpt *sp) 168 { 169 return host->syncpt_op->load(sp); 170 } 171 172 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host, 173 struct host1x_syncpt *sp) 174 { 175 return host->syncpt_op->cpu_incr(sp); 176 } 177 178 static inline int host1x_hw_syncpt_patch_wait(struct host1x *host, 179 struct host1x_syncpt *sp, 180 void *patch_addr) 181 { 182 return host->syncpt_op->patch_wait(sp, patch_addr); 183 } 184 185 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm, 186 void (*syncpt_thresh_work)(struct work_struct *)) 187 { 188 return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work); 189 } 190 191 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host, 192 unsigned int id, 193 u32 thresh) 194 { 195 host->intr_op->set_syncpt_threshold(host, id, thresh); 196 } 197 198 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host, 199 unsigned int id) 200 { 201 host->intr_op->enable_syncpt_intr(host, id); 202 } 203 204 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host, 205 unsigned int id) 206 { 207 host->intr_op->disable_syncpt_intr(host, id); 208 } 209 210 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host) 211 { 212 host->intr_op->disable_all_syncpt_intrs(host); 213 } 214 215 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host) 216 { 217 return host->intr_op->free_syncpt_irq(host); 218 } 219 220 static inline int host1x_hw_channel_init(struct host1x *host, 221 struct host1x_channel *channel, 222 unsigned int id) 223 { 224 return host->channel_op->init(channel, host, id); 225 } 226 227 static inline int host1x_hw_channel_submit(struct host1x *host, 228 struct host1x_job *job) 229 { 230 return host->channel_op->submit(job); 231 } 232 233 static inline void host1x_hw_cdma_start(struct host1x *host, 234 struct host1x_cdma *cdma) 235 { 236 host->cdma_op->start(cdma); 237 } 238 239 static inline void host1x_hw_cdma_stop(struct host1x *host, 240 struct host1x_cdma *cdma) 241 { 242 host->cdma_op->stop(cdma); 243 } 244 245 static inline void host1x_hw_cdma_flush(struct host1x *host, 246 struct host1x_cdma *cdma) 247 { 248 host->cdma_op->flush(cdma); 249 } 250 251 static inline int host1x_hw_cdma_timeout_init(struct host1x *host, 252 struct host1x_cdma *cdma, 253 unsigned int syncpt) 254 { 255 return host->cdma_op->timeout_init(cdma, syncpt); 256 } 257 258 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host, 259 struct host1x_cdma *cdma) 260 { 261 host->cdma_op->timeout_destroy(cdma); 262 } 263 264 static inline void host1x_hw_cdma_freeze(struct host1x *host, 265 struct host1x_cdma *cdma) 266 { 267 host->cdma_op->freeze(cdma); 268 } 269 270 static inline void host1x_hw_cdma_resume(struct host1x *host, 271 struct host1x_cdma *cdma, u32 getptr) 272 { 273 host->cdma_op->resume(cdma, getptr); 274 } 275 276 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host, 277 struct host1x_cdma *cdma, 278 u32 getptr, 279 u32 syncpt_incrs, 280 u32 syncval, u32 nr_slots) 281 { 282 host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval, 283 nr_slots); 284 } 285 286 static inline void host1x_hw_pushbuffer_init(struct host1x *host, 287 struct push_buffer *pb) 288 { 289 host->cdma_pb_op->init(pb); 290 } 291 292 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de) 293 { 294 if (host->debug_op && host->debug_op->debug_init) 295 host->debug_op->debug_init(de); 296 } 297 298 static inline void host1x_hw_show_channel_cdma(struct host1x *host, 299 struct host1x_channel *channel, 300 struct output *o) 301 { 302 host->debug_op->show_channel_cdma(host, channel, o); 303 } 304 305 static inline void host1x_hw_show_channel_fifo(struct host1x *host, 306 struct host1x_channel *channel, 307 struct output *o) 308 { 309 host->debug_op->show_channel_fifo(host, channel, o); 310 } 311 312 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o) 313 { 314 host->debug_op->show_mlocks(host, o); 315 } 316 317 extern struct platform_driver tegra_mipi_driver; 318 319 #endif 320