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
11 #define DRIVER_MAJOR 1
12 #define DRIVER_MINOR 4
13 #define DRIVER_PATCHLEVEL 0
14
15 /*
16 * 1.1.1:
17 * - added support for tiled system memory buffer objects
18 * - added support for NOUVEAU_GETPARAM_GRAPH_UNITS on [nvc0,nve0].
19 * - added support for compressed memory storage types on [nvc0,nve0].
20 * - added support for software methods 0x600,0x644,0x6ac on nvc0
21 * to control registers on the MPs to enable performance counters,
22 * and to control the warp error enable mask (OpenGL requires out of
23 * bounds access to local memory to be silently ignored / return 0).
24 * 1.1.2:
25 * - fixes multiple bugs in flip completion events and timestamping
26 * 1.2.0:
27 * - object api exposed to userspace
28 * - fermi,kepler,maxwell zbc
29 * 1.2.1:
30 * - allow concurrent access to bo's mapped read/write.
31 * 1.2.2:
32 * - add NOUVEAU_GEM_DOMAIN_COHERENT flag
33 * 1.3.0:
34 * - NVIF ABI modified, safe because only (current) users are test
35 * programs that get directly linked with NVKM.
36 * 1.3.1:
37 * - implemented limited ABI16/NVIF interop
38 */
39
40 #include <linux/notifier.h>
41
42 #include <nvif/client.h>
43 #include <nvif/device.h>
44 #include <nvif/ioctl.h>
45 #include <nvif/mmu.h>
46 #include <nvif/vmm.h>
47
48 #include <drm/drm_connector.h>
49 #include <drm/drm_device.h>
50 #include <drm/drm_drv.h>
51 #include <drm/drm_file.h>
52
53 #include <drm/ttm/ttm_bo.h>
54 #include <drm/ttm/ttm_placement.h>
55
56 #include <drm/drm_audio_component.h>
57
58 #include "uapi/drm/nouveau_drm.h"
59
60 struct nouveau_channel;
61 struct platform_device;
62
63 #include "nouveau_fence.h"
64 #include "nouveau_bios.h"
65 #include "nouveau_sched.h"
66 #include "nouveau_vmm.h"
67 #include "nouveau_uvmm.h"
68
69 struct nouveau_drm_tile {
70 struct nouveau_fence *fence;
71 bool used;
72 };
73
74 enum nouveau_drm_object_route {
75 NVDRM_OBJECT_NVIF = NVIF_IOCTL_V0_OWNER_NVIF,
76 NVDRM_OBJECT_USIF,
77 NVDRM_OBJECT_ABI16,
78 NVDRM_OBJECT_ANY = NVIF_IOCTL_V0_OWNER_ANY,
79 };
80
81 enum nouveau_drm_handle {
82 NVDRM_CHAN = 0xcccc0000, /* |= client chid */
83 NVDRM_NVSW = 0x55550000,
84 };
85
86 struct nouveau_cli {
87 struct nvif_client base;
88 struct nouveau_drm *drm;
89 struct mutex mutex;
90
91 struct nvif_device device;
92 struct nvif_mmu mmu;
93 struct nouveau_vmm vmm;
94 struct nouveau_vmm svm;
95 struct {
96 struct nouveau_uvmm *ptr;
97 bool disabled;
98 } uvmm;
99
100 struct nouveau_sched *sched;
101
102 const struct nvif_mclass *mem;
103
104 struct list_head head;
105 void *abi16;
106 struct list_head objects;
107 char name[32];
108
109 struct work_struct work;
110 struct list_head worker;
111 struct mutex lock;
112 };
113
114 struct nouveau_cli_work {
115 void (*func)(struct nouveau_cli_work *);
116 struct nouveau_cli *cli;
117 struct list_head head;
118
119 struct dma_fence *fence;
120 struct dma_fence_cb cb;
121 };
122
123 static inline struct nouveau_uvmm *
nouveau_cli_uvmm(struct nouveau_cli * cli)124 nouveau_cli_uvmm(struct nouveau_cli *cli)
125 {
126 return cli ? cli->uvmm.ptr : NULL;
127 }
128
129 static inline struct nouveau_uvmm *
nouveau_cli_uvmm_locked(struct nouveau_cli * cli)130 nouveau_cli_uvmm_locked(struct nouveau_cli *cli)
131 {
132 struct nouveau_uvmm *uvmm;
133
134 mutex_lock(&cli->mutex);
135 uvmm = nouveau_cli_uvmm(cli);
136 mutex_unlock(&cli->mutex);
137
138 return uvmm;
139 }
140
141 static inline struct nouveau_vmm *
nouveau_cli_vmm(struct nouveau_cli * cli)142 nouveau_cli_vmm(struct nouveau_cli *cli)
143 {
144 struct nouveau_uvmm *uvmm;
145
146 uvmm = nouveau_cli_uvmm(cli);
147 if (uvmm)
148 return &uvmm->vmm;
149
150 if (cli->svm.cli)
151 return &cli->svm;
152
153 return &cli->vmm;
154 }
155
156 static inline void
__nouveau_cli_disable_uvmm_noinit(struct nouveau_cli * cli)157 __nouveau_cli_disable_uvmm_noinit(struct nouveau_cli *cli)
158 {
159 struct nouveau_uvmm *uvmm = nouveau_cli_uvmm(cli);
160
161 if (!uvmm)
162 cli->uvmm.disabled = true;
163 }
164
165 static inline void
nouveau_cli_disable_uvmm_noinit(struct nouveau_cli * cli)166 nouveau_cli_disable_uvmm_noinit(struct nouveau_cli *cli)
167 {
168 mutex_lock(&cli->mutex);
169 __nouveau_cli_disable_uvmm_noinit(cli);
170 mutex_unlock(&cli->mutex);
171 }
172
173 void nouveau_cli_work_queue(struct nouveau_cli *, struct dma_fence *,
174 struct nouveau_cli_work *);
175
176 static inline struct nouveau_cli *
nouveau_cli(struct drm_file * fpriv)177 nouveau_cli(struct drm_file *fpriv)
178 {
179 return fpriv ? fpriv->driver_priv : NULL;
180 }
181
182 static inline void
u_free(void * addr)183 u_free(void *addr)
184 {
185 kvfree(addr);
186 }
187
188 static inline void *
u_memcpya(uint64_t user,unsigned int nmemb,unsigned int size)189 u_memcpya(uint64_t user, unsigned int nmemb, unsigned int size)
190 {
191 void __user *userptr = u64_to_user_ptr(user);
192 size_t bytes;
193
194 if (unlikely(check_mul_overflow(nmemb, size, &bytes)))
195 return ERR_PTR(-EOVERFLOW);
196 return vmemdup_user(userptr, bytes);
197 }
198
199 #include <nvif/object.h>
200 #include <nvif/parent.h>
201
202 struct nouveau_drm {
203 struct nvkm_device *nvkm;
204 struct nvif_parent parent;
205 struct mutex client_mutex;
206 struct nvif_client _client;
207 struct nvif_device device;
208 struct nvif_mmu mmu;
209
210 struct nouveau_cli client;
211 struct drm_device *dev;
212
213 struct list_head clients;
214
215 /**
216 * @clients_lock: Protects access to the @clients list of &struct nouveau_cli.
217 */
218 struct mutex clients_lock;
219
220 u8 old_pm_cap;
221
222 struct {
223 struct agp_bridge_data *bridge;
224 u32 base;
225 u32 size;
226 bool cma;
227 } agp;
228
229 /* TTM interface support */
230 struct {
231 struct ttm_device bdev;
232 atomic_t validate_sequence;
233 int (*move)(struct nouveau_channel *,
234 struct ttm_buffer_object *,
235 struct ttm_resource *, struct ttm_resource *);
236 struct nouveau_channel *chan;
237 struct nvif_object copy;
238 int mtrr;
239 int type_vram;
240 int type_host[2];
241 int type_ncoh[2];
242 struct mutex io_reserve_mutex;
243 struct list_head io_reserve_lru;
244 } ttm;
245
246 /* GEM interface support */
247 struct {
248 u64 vram_available;
249 u64 gart_available;
250 } gem;
251
252 /* synchronisation */
253 void *fence;
254
255 /* Global channel management. */
256 int chan_total; /* Number of channels across all runlists. */
257 int chan_nr; /* 0 if per-runlist CHIDs. */
258 int runl_nr;
259 struct {
260 int chan_nr;
261 int chan_id_base;
262 u64 context_base;
263 } *runl;
264
265 /* Workqueue used for channel schedulers. */
266 struct workqueue_struct *sched_wq;
267
268 /* context for accelerated drm-internal operations */
269 struct nouveau_channel *cechan;
270 struct nouveau_channel *channel;
271 struct nvkm_gpuobj *notify;
272 struct nvif_object ntfy;
273
274 /* nv10-nv40 tiling regions */
275 struct {
276 struct nouveau_drm_tile reg[15];
277 spinlock_t lock;
278 } tile;
279
280 /* modesetting */
281 struct nvbios vbios;
282 struct nouveau_display *display;
283 bool headless;
284 struct work_struct hpd_work;
285 spinlock_t hpd_lock;
286 u32 hpd_pending;
287 #ifdef CONFIG_ACPI
288 struct notifier_block acpi_nb;
289 #endif
290
291 /* power management */
292 struct nouveau_hwmon *hwmon;
293 struct nouveau_debugfs *debugfs;
294
295 /* led management */
296 struct nouveau_led *led;
297
298 struct dev_pm_domain vga_pm_domain;
299
300 struct nouveau_svm *svm;
301
302 struct nouveau_dmem *dmem;
303
304 struct {
305 struct drm_audio_component *component;
306 struct mutex lock;
307 bool component_registered;
308 } audio;
309 };
310
311 static inline struct nouveau_drm *
nouveau_drm(struct drm_device * dev)312 nouveau_drm(struct drm_device *dev)
313 {
314 return dev->dev_private;
315 }
316
317 static inline bool
nouveau_drm_use_coherent_gpu_mapping(struct nouveau_drm * drm)318 nouveau_drm_use_coherent_gpu_mapping(struct nouveau_drm *drm)
319 {
320 struct nvif_mmu *mmu = &drm->client.mmu;
321 return !(mmu->type[drm->ttm.type_host[0]].type & NVIF_MEM_UNCACHED);
322 }
323
324 int nouveau_pmops_suspend(struct device *);
325 int nouveau_pmops_resume(struct device *);
326 bool nouveau_pmops_runtime(void);
327
328 #include <nvkm/core/tegra.h>
329
330 struct drm_device *
331 nouveau_platform_device_create(const struct nvkm_device_tegra_func *,
332 struct platform_device *, struct nvkm_device **);
333 void nouveau_drm_device_remove(struct nouveau_drm *);
334
335 #define NV_PRINTK(l,c,f,a...) do { \
336 struct nouveau_cli *_cli = (c); \
337 dev_##l(_cli->drm->dev->dev, "%s: "f, _cli->name, ##a); \
338 } while(0)
339
340 #define NV_PRINTK_(l,drm,f,a...) do { \
341 dev_##l((drm)->nvkm->dev, "drm: "f, ##a); \
342 } while(0)
343 #define NV_FATAL(drm,f,a...) NV_PRINTK_(crit, (drm), f, ##a)
344 #define NV_ERROR(drm,f,a...) NV_PRINTK_(err, (drm), f, ##a)
345 #define NV_WARN(drm,f,a...) NV_PRINTK_(warn, (drm), f, ##a)
346 #define NV_INFO(drm,f,a...) NV_PRINTK_(info, (drm), f, ##a)
347
348 #define NV_DEBUG(drm,f,a...) do { \
349 if (drm_debug_enabled(DRM_UT_DRIVER)) \
350 NV_PRINTK_(info, (drm), f, ##a); \
351 } while(0)
352 #define NV_ATOMIC(drm,f,a...) do { \
353 if (drm_debug_enabled(DRM_UT_ATOMIC)) \
354 NV_PRINTK_(info, (drm), f, ##a); \
355 } while(0)
356
357 #define NV_PRINTK_ONCE(l,c,f,a...) NV_PRINTK(l##_once,c,f, ##a)
358
359 #define NV_ERROR_ONCE(drm,f,a...) NV_PRINTK_ONCE(err, &(drm)->client, f, ##a)
360 #define NV_WARN_ONCE(drm,f,a...) NV_PRINTK_ONCE(warn, &(drm)->client, f, ##a)
361 #define NV_INFO_ONCE(drm,f,a...) NV_PRINTK_ONCE(info, &(drm)->client, f, ##a)
362
363 extern int nouveau_modeset;
364
365 /*XXX: Don't use these in new code.
366 *
367 * These accessors are used in a few places (mostly older code paths)
368 * to get direct access to NVKM structures, where a more well-defined
369 * interface doesn't exist. Outside of the current use, these should
370 * not be relied on, and instead be implemented as NVIF.
371 *
372 * This is especially important when considering GSP-RM, as a lot the
373 * modules don't exist, or are "stub" implementations that just allow
374 * the GSP-RM paths to be bootstrapped.
375 */
376 #include <subdev/bios.h>
377 #include <subdev/fb.h>
378 #include <subdev/gpio.h>
379 #include <subdev/clk.h>
380 #include <subdev/i2c.h>
381 #include <subdev/timer.h>
382 #include <subdev/therm.h>
383
384 static inline struct nvkm_device *
nvxx_device(struct nouveau_drm * drm)385 nvxx_device(struct nouveau_drm *drm)
386 {
387 return drm->nvkm;
388 }
389
390 #define nvxx_bios(a) nvxx_device(a)->bios
391 #define nvxx_fb(a) nvxx_device(a)->fb
392 #define nvxx_gpio(a) nvxx_device(a)->gpio
393 #define nvxx_clk(a) nvxx_device(a)->clk
394 #define nvxx_i2c(a) nvxx_device(a)->i2c
395 #define nvxx_iccsense(a) nvxx_device(a)->iccsense
396 #define nvxx_therm(a) nvxx_device(a)->therm
397 #define nvxx_volt(a) nvxx_device(a)->volt
398
399 #include <engine/gr.h>
400
401 #define nvxx_gr(a) nvxx_device(a)->gr
402 #endif
403