1 /* SPDX-License-Identifier: MIT */ 2 #ifndef __NOUVEAU_DRV_H__ 3 #define __NOUVEAU_DRV_H__ 4 5 #define DRIVER_AUTHOR "Nouveau Project" 6 #define DRIVER_EMAIL "nouveau@lists.freedesktop.org" 7 8 #define DRIVER_NAME "nouveau" 9 #define DRIVER_DESC "nVidia Riva/TNT/GeForce/Quadro/Tesla/Tegra K1+" 10 #define DRIVER_DATE "20120801" 11 12 #define DRIVER_MAJOR 1 13 #define DRIVER_MINOR 4 14 #define DRIVER_PATCHLEVEL 0 15 16 /* 17 * 1.1.1: 18 * - added support for tiled system memory buffer objects 19 * - added support for NOUVEAU_GETPARAM_GRAPH_UNITS on [nvc0,nve0]. 20 * - added support for compressed memory storage types on [nvc0,nve0]. 21 * - added support for software methods 0x600,0x644,0x6ac on nvc0 22 * to control registers on the MPs to enable performance counters, 23 * and to control the warp error enable mask (OpenGL requires out of 24 * bounds access to local memory to be silently ignored / return 0). 25 * 1.1.2: 26 * - fixes multiple bugs in flip completion events and timestamping 27 * 1.2.0: 28 * - object api exposed to userspace 29 * - fermi,kepler,maxwell zbc 30 * 1.2.1: 31 * - allow concurrent access to bo's mapped read/write. 32 * 1.2.2: 33 * - add NOUVEAU_GEM_DOMAIN_COHERENT flag 34 * 1.3.0: 35 * - NVIF ABI modified, safe because only (current) users are test 36 * programs that get directly linked with NVKM. 37 * 1.3.1: 38 * - implemented limited ABI16/NVIF interop 39 */ 40 41 #include <linux/notifier.h> 42 43 #include <nvif/client.h> 44 #include <nvif/device.h> 45 #include <nvif/ioctl.h> 46 #include <nvif/mmu.h> 47 #include <nvif/vmm.h> 48 49 #include <drm/drm_connector.h> 50 #include <drm/drm_device.h> 51 #include <drm/drm_drv.h> 52 #include <drm/drm_file.h> 53 54 #include <drm/ttm/ttm_bo.h> 55 #include <drm/ttm/ttm_placement.h> 56 57 #include <drm/drm_audio_component.h> 58 59 #include "uapi/drm/nouveau_drm.h" 60 61 struct nouveau_channel; 62 struct platform_device; 63 64 #include "nouveau_fence.h" 65 #include "nouveau_bios.h" 66 #include "nouveau_sched.h" 67 #include "nouveau_vmm.h" 68 #include "nouveau_uvmm.h" 69 70 struct nouveau_drm_tile { 71 struct nouveau_fence *fence; 72 bool used; 73 }; 74 75 enum nouveau_drm_object_route { 76 NVDRM_OBJECT_NVIF = NVIF_IOCTL_V0_OWNER_NVIF, 77 NVDRM_OBJECT_USIF, 78 NVDRM_OBJECT_ABI16, 79 NVDRM_OBJECT_ANY = NVIF_IOCTL_V0_OWNER_ANY, 80 }; 81 82 enum nouveau_drm_handle { 83 NVDRM_CHAN = 0xcccc0000, /* |= client chid */ 84 NVDRM_NVSW = 0x55550000, 85 }; 86 87 struct nouveau_cli { 88 struct nvif_client base; 89 struct nouveau_drm *drm; 90 struct mutex mutex; 91 92 struct nvif_device device; 93 struct nvif_mmu mmu; 94 struct nouveau_vmm vmm; 95 struct nouveau_vmm svm; 96 struct nouveau_uvmm uvmm; 97 98 struct nouveau_sched_entity sched_entity; 99 100 const struct nvif_mclass *mem; 101 102 struct list_head head; 103 void *abi16; 104 struct list_head objects; 105 char name[32]; 106 107 struct work_struct work; 108 struct list_head worker; 109 struct mutex lock; 110 }; 111 112 struct nouveau_cli_work { 113 void (*func)(struct nouveau_cli_work *); 114 struct nouveau_cli *cli; 115 struct list_head head; 116 117 struct dma_fence *fence; 118 struct dma_fence_cb cb; 119 }; 120 121 static inline struct nouveau_uvmm * nouveau_cli_uvmm(struct nouveau_cli * cli)122 nouveau_cli_uvmm(struct nouveau_cli *cli) 123 { 124 if (!cli || !cli->uvmm.vmm.cli) 125 return NULL; 126 127 return &cli->uvmm; 128 } 129 130 static inline struct nouveau_uvmm * nouveau_cli_uvmm_locked(struct nouveau_cli * cli)131 nouveau_cli_uvmm_locked(struct nouveau_cli *cli) 132 { 133 struct nouveau_uvmm *uvmm; 134 135 mutex_lock(&cli->mutex); 136 uvmm = nouveau_cli_uvmm(cli); 137 mutex_unlock(&cli->mutex); 138 139 return uvmm; 140 } 141 142 static inline struct nouveau_vmm * nouveau_cli_vmm(struct nouveau_cli * cli)143 nouveau_cli_vmm(struct nouveau_cli *cli) 144 { 145 struct nouveau_uvmm *uvmm; 146 147 uvmm = nouveau_cli_uvmm(cli); 148 if (uvmm) 149 return &uvmm->vmm; 150 151 if (cli->svm.cli) 152 return &cli->svm; 153 154 return &cli->vmm; 155 } 156 157 static inline void __nouveau_cli_disable_uvmm_noinit(struct nouveau_cli * cli)158 __nouveau_cli_disable_uvmm_noinit(struct nouveau_cli *cli) 159 { 160 struct nouveau_uvmm *uvmm = nouveau_cli_uvmm(cli); 161 162 if (!uvmm) 163 cli->uvmm.disabled = true; 164 } 165 166 static inline void nouveau_cli_disable_uvmm_noinit(struct nouveau_cli * cli)167 nouveau_cli_disable_uvmm_noinit(struct nouveau_cli *cli) 168 { 169 mutex_lock(&cli->mutex); 170 __nouveau_cli_disable_uvmm_noinit(cli); 171 mutex_unlock(&cli->mutex); 172 } 173 174 void nouveau_cli_work_queue(struct nouveau_cli *, struct dma_fence *, 175 struct nouveau_cli_work *); 176 177 static inline struct nouveau_cli * nouveau_cli(struct drm_file * fpriv)178 nouveau_cli(struct drm_file *fpriv) 179 { 180 return fpriv ? fpriv->driver_priv : NULL; 181 } 182 183 static inline void u_free(void * addr)184 u_free(void *addr) 185 { 186 kvfree(addr); 187 } 188 189 static inline void * u_memcpya(uint64_t user,unsigned int nmemb,unsigned int size)190 u_memcpya(uint64_t user, unsigned int nmemb, unsigned int size) 191 { 192 void __user *userptr = u64_to_user_ptr(user); 193 size_t bytes; 194 195 if (unlikely(check_mul_overflow(nmemb, size, &bytes))) 196 return ERR_PTR(-EOVERFLOW); 197 return vmemdup_user(userptr, bytes); 198 } 199 200 #include <nvif/object.h> 201 #include <nvif/parent.h> 202 203 struct nouveau_drm { 204 struct nvif_parent parent; 205 struct nouveau_cli master; 206 struct nouveau_cli client; 207 struct drm_device *dev; 208 209 struct list_head clients; 210 211 /** 212 * @clients_lock: Protects access to the @clients list of &struct nouveau_cli. 213 */ 214 struct mutex clients_lock; 215 216 u8 old_pm_cap; 217 218 struct { 219 struct agp_bridge_data *bridge; 220 u32 base; 221 u32 size; 222 bool cma; 223 } agp; 224 225 /* TTM interface support */ 226 struct { 227 struct ttm_device bdev; 228 atomic_t validate_sequence; 229 int (*move)(struct nouveau_channel *, 230 struct ttm_buffer_object *, 231 struct ttm_resource *, struct ttm_resource *); 232 struct nouveau_channel *chan; 233 struct nvif_object copy; 234 int mtrr; 235 int type_vram; 236 int type_host[2]; 237 int type_ncoh[2]; 238 struct mutex io_reserve_mutex; 239 struct list_head io_reserve_lru; 240 } ttm; 241 242 /* GEM interface support */ 243 struct { 244 u64 vram_available; 245 u64 gart_available; 246 } gem; 247 248 /* synchronisation */ 249 void *fence; 250 251 /* Global channel management. */ 252 int chan_total; /* Number of channels across all runlists. */ 253 int chan_nr; /* 0 if per-runlist CHIDs. */ 254 int runl_nr; 255 struct { 256 int chan_nr; 257 int chan_id_base; 258 u64 context_base; 259 } *runl; 260 261 /* context for accelerated drm-internal operations */ 262 struct nouveau_channel *cechan; 263 struct nouveau_channel *channel; 264 struct nvkm_gpuobj *notify; 265 struct nvif_object ntfy; 266 267 /* nv10-nv40 tiling regions */ 268 struct { 269 struct nouveau_drm_tile reg[15]; 270 spinlock_t lock; 271 } tile; 272 273 /* modesetting */ 274 struct nvbios vbios; 275 struct nouveau_display *display; 276 struct work_struct hpd_work; 277 spinlock_t hpd_lock; 278 u32 hpd_pending; 279 #ifdef CONFIG_ACPI 280 struct notifier_block acpi_nb; 281 #endif 282 283 /* power management */ 284 struct nouveau_hwmon *hwmon; 285 struct nouveau_debugfs *debugfs; 286 287 /* led management */ 288 struct nouveau_led *led; 289 290 struct dev_pm_domain vga_pm_domain; 291 292 struct nouveau_svm *svm; 293 294 struct nouveau_dmem *dmem; 295 296 struct { 297 struct drm_audio_component *component; 298 struct mutex lock; 299 bool component_registered; 300 } audio; 301 302 struct drm_gpu_scheduler sched; 303 struct workqueue_struct *sched_wq; 304 305 }; 306 307 static inline struct nouveau_drm * nouveau_drm(struct drm_device * dev)308 nouveau_drm(struct drm_device *dev) 309 { 310 return dev->dev_private; 311 } 312 313 static inline bool nouveau_drm_use_coherent_gpu_mapping(struct nouveau_drm * drm)314 nouveau_drm_use_coherent_gpu_mapping(struct nouveau_drm *drm) 315 { 316 struct nvif_mmu *mmu = &drm->client.mmu; 317 return !(mmu->type[drm->ttm.type_host[0]].type & NVIF_MEM_UNCACHED); 318 } 319 320 int nouveau_pmops_suspend(struct device *); 321 int nouveau_pmops_resume(struct device *); 322 bool nouveau_pmops_runtime(void); 323 324 #include <nvkm/core/tegra.h> 325 326 struct drm_device * 327 nouveau_platform_device_create(const struct nvkm_device_tegra_func *, 328 struct platform_device *, struct nvkm_device **); 329 void nouveau_drm_device_remove(struct drm_device *dev); 330 331 #define NV_PRINTK(l,c,f,a...) do { \ 332 struct nouveau_cli *_cli = (c); \ 333 dev_##l(_cli->drm->dev->dev, "%s: "f, _cli->name, ##a); \ 334 } while(0) 335 336 #define NV_FATAL(drm,f,a...) NV_PRINTK(crit, &(drm)->client, f, ##a) 337 #define NV_ERROR(drm,f,a...) NV_PRINTK(err, &(drm)->client, f, ##a) 338 #define NV_WARN(drm,f,a...) NV_PRINTK(warn, &(drm)->client, f, ##a) 339 #define NV_INFO(drm,f,a...) NV_PRINTK(info, &(drm)->client, f, ##a) 340 341 #define NV_DEBUG(drm,f,a...) do { \ 342 if (drm_debug_enabled(DRM_UT_DRIVER)) \ 343 NV_PRINTK(info, &(drm)->client, f, ##a); \ 344 } while(0) 345 #define NV_ATOMIC(drm,f,a...) do { \ 346 if (drm_debug_enabled(DRM_UT_ATOMIC)) \ 347 NV_PRINTK(info, &(drm)->client, f, ##a); \ 348 } while(0) 349 350 #define NV_PRINTK_ONCE(l,c,f,a...) NV_PRINTK(l##_once,c,f, ##a) 351 352 #define NV_ERROR_ONCE(drm,f,a...) NV_PRINTK_ONCE(err, &(drm)->client, f, ##a) 353 #define NV_WARN_ONCE(drm,f,a...) NV_PRINTK_ONCE(warn, &(drm)->client, f, ##a) 354 #define NV_INFO_ONCE(drm,f,a...) NV_PRINTK_ONCE(info, &(drm)->client, f, ##a) 355 356 extern int nouveau_modeset; 357 358 #endif 359