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 bool has_hypervisor; /* has hypervisor registers */ 104 }; 105 106 struct host1x { 107 const struct host1x_info *info; 108 109 void __iomem *regs; 110 void __iomem *hv_regs; /* hypervisor region */ 111 struct host1x_syncpt *syncpt; 112 struct host1x_syncpt_base *bases; 113 struct device *dev; 114 struct clk *clk; 115 struct reset_control *rst; 116 117 struct iommu_domain *domain; 118 struct iova_domain iova; 119 dma_addr_t iova_end; 120 121 struct mutex intr_mutex; 122 int intr_syncpt_irq; 123 124 const struct host1x_syncpt_ops *syncpt_op; 125 const struct host1x_intr_ops *intr_op; 126 const struct host1x_channel_ops *channel_op; 127 const struct host1x_cdma_ops *cdma_op; 128 const struct host1x_pushbuffer_ops *cdma_pb_op; 129 const struct host1x_debug_ops *debug_op; 130 131 struct host1x_syncpt *nop_sp; 132 133 struct mutex syncpt_mutex; 134 135 struct host1x_channel_list channel_list; 136 137 struct dentry *debugfs; 138 139 struct mutex devices_lock; 140 struct list_head devices; 141 142 struct list_head list; 143 }; 144 145 void host1x_hypervisor_writel(struct host1x *host1x, u32 r, u32 v); 146 u32 host1x_hypervisor_readl(struct host1x *host1x, u32 r); 147 void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v); 148 u32 host1x_sync_readl(struct host1x *host1x, u32 r); 149 void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v); 150 u32 host1x_ch_readl(struct host1x_channel *ch, u32 r); 151 152 static inline void host1x_hw_syncpt_restore(struct host1x *host, 153 struct host1x_syncpt *sp) 154 { 155 host->syncpt_op->restore(sp); 156 } 157 158 static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host, 159 struct host1x_syncpt *sp) 160 { 161 host->syncpt_op->restore_wait_base(sp); 162 } 163 164 static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host, 165 struct host1x_syncpt *sp) 166 { 167 host->syncpt_op->load_wait_base(sp); 168 } 169 170 static inline u32 host1x_hw_syncpt_load(struct host1x *host, 171 struct host1x_syncpt *sp) 172 { 173 return host->syncpt_op->load(sp); 174 } 175 176 static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host, 177 struct host1x_syncpt *sp) 178 { 179 return host->syncpt_op->cpu_incr(sp); 180 } 181 182 static inline int host1x_hw_syncpt_patch_wait(struct host1x *host, 183 struct host1x_syncpt *sp, 184 void *patch_addr) 185 { 186 return host->syncpt_op->patch_wait(sp, patch_addr); 187 } 188 189 static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm, 190 void (*syncpt_thresh_work)(struct work_struct *)) 191 { 192 return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work); 193 } 194 195 static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host, 196 unsigned int id, 197 u32 thresh) 198 { 199 host->intr_op->set_syncpt_threshold(host, id, thresh); 200 } 201 202 static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host, 203 unsigned int id) 204 { 205 host->intr_op->enable_syncpt_intr(host, id); 206 } 207 208 static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host, 209 unsigned int id) 210 { 211 host->intr_op->disable_syncpt_intr(host, id); 212 } 213 214 static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host) 215 { 216 host->intr_op->disable_all_syncpt_intrs(host); 217 } 218 219 static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host) 220 { 221 return host->intr_op->free_syncpt_irq(host); 222 } 223 224 static inline int host1x_hw_channel_init(struct host1x *host, 225 struct host1x_channel *channel, 226 unsigned int id) 227 { 228 return host->channel_op->init(channel, host, id); 229 } 230 231 static inline int host1x_hw_channel_submit(struct host1x *host, 232 struct host1x_job *job) 233 { 234 return host->channel_op->submit(job); 235 } 236 237 static inline void host1x_hw_cdma_start(struct host1x *host, 238 struct host1x_cdma *cdma) 239 { 240 host->cdma_op->start(cdma); 241 } 242 243 static inline void host1x_hw_cdma_stop(struct host1x *host, 244 struct host1x_cdma *cdma) 245 { 246 host->cdma_op->stop(cdma); 247 } 248 249 static inline void host1x_hw_cdma_flush(struct host1x *host, 250 struct host1x_cdma *cdma) 251 { 252 host->cdma_op->flush(cdma); 253 } 254 255 static inline int host1x_hw_cdma_timeout_init(struct host1x *host, 256 struct host1x_cdma *cdma, 257 unsigned int syncpt) 258 { 259 return host->cdma_op->timeout_init(cdma, syncpt); 260 } 261 262 static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host, 263 struct host1x_cdma *cdma) 264 { 265 host->cdma_op->timeout_destroy(cdma); 266 } 267 268 static inline void host1x_hw_cdma_freeze(struct host1x *host, 269 struct host1x_cdma *cdma) 270 { 271 host->cdma_op->freeze(cdma); 272 } 273 274 static inline void host1x_hw_cdma_resume(struct host1x *host, 275 struct host1x_cdma *cdma, u32 getptr) 276 { 277 host->cdma_op->resume(cdma, getptr); 278 } 279 280 static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host, 281 struct host1x_cdma *cdma, 282 u32 getptr, 283 u32 syncpt_incrs, 284 u32 syncval, u32 nr_slots) 285 { 286 host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval, 287 nr_slots); 288 } 289 290 static inline void host1x_hw_pushbuffer_init(struct host1x *host, 291 struct push_buffer *pb) 292 { 293 host->cdma_pb_op->init(pb); 294 } 295 296 static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de) 297 { 298 if (host->debug_op && host->debug_op->debug_init) 299 host->debug_op->debug_init(de); 300 } 301 302 static inline void host1x_hw_show_channel_cdma(struct host1x *host, 303 struct host1x_channel *channel, 304 struct output *o) 305 { 306 host->debug_op->show_channel_cdma(host, channel, o); 307 } 308 309 static inline void host1x_hw_show_channel_fifo(struct host1x *host, 310 struct host1x_channel *channel, 311 struct output *o) 312 { 313 host->debug_op->show_channel_fifo(host, channel, o); 314 } 315 316 static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o) 317 { 318 host->debug_op->show_mlocks(host, o); 319 } 320 321 extern struct platform_driver tegra_mipi_driver; 322 323 #endif 324