1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (c) 2012-2015, NVIDIA Corporation. 4 */ 5 6#ifndef HOST1X_DEV_H 7#define HOST1X_DEV_H 8 9#include <linux/device.h> 10#include <linux/iommu.h> 11#include <linux/iova.h> 12#include <linux/platform_device.h> 13#include <linux/reset.h> 14 15#include "cdma.h" 16#include "channel.h" 17#include "intr.h" 18#include "job.h" 19#include "syncpt.h" 20 21struct host1x_syncpt; 22struct host1x_syncpt_base; 23struct host1x_channel; 24struct host1x_cdma; 25struct host1x_job; 26struct push_buffer; 27struct output; 28struct dentry; 29 30struct host1x_channel_ops { 31 int (*init)(struct host1x_channel *channel, struct host1x *host, 32 unsigned int id); 33 int (*submit)(struct host1x_job *job); 34}; 35 36struct host1x_cdma_ops { 37 void (*start)(struct host1x_cdma *cdma); 38 void (*stop)(struct host1x_cdma *cdma); 39 void (*flush)(struct host1x_cdma *cdma); 40 int (*timeout_init)(struct host1x_cdma *cdma, unsigned int syncpt); 41 void (*timeout_destroy)(struct host1x_cdma *cdma); 42 void (*freeze)(struct host1x_cdma *cdma); 43 void (*resume)(struct host1x_cdma *cdma, u32 getptr); 44 void (*timeout_cpu_incr)(struct host1x_cdma *cdma, u32 getptr, 45 u32 syncpt_incrs, u32 syncval, u32 nr_slots); 46}; 47 48struct host1x_pushbuffer_ops { 49 void (*init)(struct push_buffer *pb); 50}; 51 52struct host1x_debug_ops { 53 void (*debug_init)(struct dentry *de); 54 void (*show_channel_cdma)(struct host1x *host, 55 struct host1x_channel *ch, 56 struct output *o); 57 void (*show_channel_fifo)(struct host1x *host, 58 struct host1x_channel *ch, 59 struct output *o); 60 void (*show_mlocks)(struct host1x *host, struct output *output); 61 62}; 63 64struct host1x_syncpt_ops { 65 void (*restore)(struct host1x_syncpt *syncpt); 66 void (*restore_wait_base)(struct host1x_syncpt *syncpt); 67 void (*load_wait_base)(struct host1x_syncpt *syncpt); 68 u32 (*load)(struct host1x_syncpt *syncpt); 69 int (*cpu_incr)(struct host1x_syncpt *syncpt); 70 void (*assign_to_channel)(struct host1x_syncpt *syncpt, 71 struct host1x_channel *channel); 72 void (*enable_protection)(struct host1x *host); 73}; 74 75struct host1x_intr_ops { 76 int (*init_host_sync)(struct host1x *host, u32 cpm, 77 void (*syncpt_thresh_work)(struct work_struct *work)); 78 void (*set_syncpt_threshold)( 79 struct host1x *host, unsigned int id, u32 thresh); 80 void (*enable_syncpt_intr)(struct host1x *host, unsigned int id); 81 void (*disable_syncpt_intr)(struct host1x *host, unsigned int id); 82 void (*disable_all_syncpt_intrs)(struct host1x *host); 83 int (*free_syncpt_irq)(struct host1x *host); 84}; 85 86struct host1x_sid_entry { 87 unsigned int base; 88 unsigned int offset; 89 unsigned int limit; 90}; 91 92struct 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 bool has_wide_gather; /* supports GATHER_W opcode */ 101 bool has_hypervisor; /* has hypervisor registers */ 102 unsigned int num_sid_entries; 103 const struct host1x_sid_entry *sid_table; 104}; 105 106struct 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_group *group; 118 struct iommu_domain *domain; 119 struct iova_domain iova; 120 dma_addr_t iova_end; 121 122 struct mutex intr_mutex; 123 int intr_syncpt_irq; 124 125 const struct host1x_syncpt_ops *syncpt_op; 126 const struct host1x_intr_ops *intr_op; 127 const struct host1x_channel_ops *channel_op; 128 const struct host1x_cdma_ops *cdma_op; 129 const struct host1x_pushbuffer_ops *cdma_pb_op; 130 const struct host1x_debug_ops *debug_op; 131 132 struct host1x_syncpt *nop_sp; 133 134 struct mutex syncpt_mutex; 135 136 struct host1x_channel_list channel_list; 137 138 struct dentry *debugfs; 139 140 struct mutex devices_lock; 141 struct list_head devices; 142 143 struct list_head list; 144 145 struct device_dma_parameters dma_parms; 146}; 147 148void host1x_hypervisor_writel(struct host1x *host1x, u32 r, u32 v); 149u32 host1x_hypervisor_readl(struct host1x *host1x, u32 r); 150void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v); 151u32 host1x_sync_readl(struct host1x *host1x, u32 r); 152void host1x_ch_writel(struct host1x_channel *ch, u32 r, u32 v); 153u32 host1x_ch_readl(struct host1x_channel *ch, u32 r); 154 155static inline void host1x_hw_syncpt_restore(struct host1x *host, 156 struct host1x_syncpt *sp) 157{ 158 host->syncpt_op->restore(sp); 159} 160 161static inline void host1x_hw_syncpt_restore_wait_base(struct host1x *host, 162 struct host1x_syncpt *sp) 163{ 164 host->syncpt_op->restore_wait_base(sp); 165} 166 167static inline void host1x_hw_syncpt_load_wait_base(struct host1x *host, 168 struct host1x_syncpt *sp) 169{ 170 host->syncpt_op->load_wait_base(sp); 171} 172 173static inline u32 host1x_hw_syncpt_load(struct host1x *host, 174 struct host1x_syncpt *sp) 175{ 176 return host->syncpt_op->load(sp); 177} 178 179static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host, 180 struct host1x_syncpt *sp) 181{ 182 return host->syncpt_op->cpu_incr(sp); 183} 184 185static inline void host1x_hw_syncpt_assign_to_channel( 186 struct host1x *host, struct host1x_syncpt *sp, 187 struct host1x_channel *ch) 188{ 189 return host->syncpt_op->assign_to_channel(sp, ch); 190} 191 192static inline void host1x_hw_syncpt_enable_protection(struct host1x *host) 193{ 194 return host->syncpt_op->enable_protection(host); 195} 196 197static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm, 198 void (*syncpt_thresh_work)(struct work_struct *)) 199{ 200 return host->intr_op->init_host_sync(host, cpm, syncpt_thresh_work); 201} 202 203static inline void host1x_hw_intr_set_syncpt_threshold(struct host1x *host, 204 unsigned int id, 205 u32 thresh) 206{ 207 host->intr_op->set_syncpt_threshold(host, id, thresh); 208} 209 210static inline void host1x_hw_intr_enable_syncpt_intr(struct host1x *host, 211 unsigned int id) 212{ 213 host->intr_op->enable_syncpt_intr(host, id); 214} 215 216static inline void host1x_hw_intr_disable_syncpt_intr(struct host1x *host, 217 unsigned int id) 218{ 219 host->intr_op->disable_syncpt_intr(host, id); 220} 221 222static inline void host1x_hw_intr_disable_all_syncpt_intrs(struct host1x *host) 223{ 224 host->intr_op->disable_all_syncpt_intrs(host); 225} 226 227static inline int host1x_hw_intr_free_syncpt_irq(struct host1x *host) 228{ 229 return host->intr_op->free_syncpt_irq(host); 230} 231 232static inline int host1x_hw_channel_init(struct host1x *host, 233 struct host1x_channel *channel, 234 unsigned int id) 235{ 236 return host->channel_op->init(channel, host, id); 237} 238 239static inline int host1x_hw_channel_submit(struct host1x *host, 240 struct host1x_job *job) 241{ 242 return host->channel_op->submit(job); 243} 244 245static inline void host1x_hw_cdma_start(struct host1x *host, 246 struct host1x_cdma *cdma) 247{ 248 host->cdma_op->start(cdma); 249} 250 251static inline void host1x_hw_cdma_stop(struct host1x *host, 252 struct host1x_cdma *cdma) 253{ 254 host->cdma_op->stop(cdma); 255} 256 257static inline void host1x_hw_cdma_flush(struct host1x *host, 258 struct host1x_cdma *cdma) 259{ 260 host->cdma_op->flush(cdma); 261} 262 263static inline int host1x_hw_cdma_timeout_init(struct host1x *host, 264 struct host1x_cdma *cdma, 265 unsigned int syncpt) 266{ 267 return host->cdma_op->timeout_init(cdma, syncpt); 268} 269 270static inline void host1x_hw_cdma_timeout_destroy(struct host1x *host, 271 struct host1x_cdma *cdma) 272{ 273 host->cdma_op->timeout_destroy(cdma); 274} 275 276static inline void host1x_hw_cdma_freeze(struct host1x *host, 277 struct host1x_cdma *cdma) 278{ 279 host->cdma_op->freeze(cdma); 280} 281 282static inline void host1x_hw_cdma_resume(struct host1x *host, 283 struct host1x_cdma *cdma, u32 getptr) 284{ 285 host->cdma_op->resume(cdma, getptr); 286} 287 288static inline void host1x_hw_cdma_timeout_cpu_incr(struct host1x *host, 289 struct host1x_cdma *cdma, 290 u32 getptr, 291 u32 syncpt_incrs, 292 u32 syncval, u32 nr_slots) 293{ 294 host->cdma_op->timeout_cpu_incr(cdma, getptr, syncpt_incrs, syncval, 295 nr_slots); 296} 297 298static inline void host1x_hw_pushbuffer_init(struct host1x *host, 299 struct push_buffer *pb) 300{ 301 host->cdma_pb_op->init(pb); 302} 303 304static inline void host1x_hw_debug_init(struct host1x *host, struct dentry *de) 305{ 306 if (host->debug_op && host->debug_op->debug_init) 307 host->debug_op->debug_init(de); 308} 309 310static inline void host1x_hw_show_channel_cdma(struct host1x *host, 311 struct host1x_channel *channel, 312 struct output *o) 313{ 314 host->debug_op->show_channel_cdma(host, channel, o); 315} 316 317static inline void host1x_hw_show_channel_fifo(struct host1x *host, 318 struct host1x_channel *channel, 319 struct output *o) 320{ 321 host->debug_op->show_channel_fifo(host, channel, o); 322} 323 324static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o) 325{ 326 host->debug_op->show_mlocks(host, o); 327} 328 329extern struct platform_driver tegra_mipi_driver; 330 331#endif 332