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		3
14 #define DRIVER_PATCHLEVEL	1
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_api.h>
55 #include <drm/ttm/ttm_bo_driver.h>
56 #include <drm/ttm/ttm_placement.h>
57 #include <drm/ttm/ttm_memory.h>
58 #include <drm/ttm/ttm_module.h>
59 #include <drm/ttm/ttm_page_alloc.h>
60 
61 #include <drm/drm_audio_component.h>
62 
63 #include "uapi/drm/nouveau_drm.h"
64 
65 struct nouveau_channel;
66 struct platform_device;
67 
68 #include "nouveau_fence.h"
69 #include "nouveau_bios.h"
70 #include "nouveau_vmm.h"
71 
72 struct nouveau_drm_tile {
73 	struct nouveau_fence *fence;
74 	bool used;
75 };
76 
77 enum nouveau_drm_object_route {
78 	NVDRM_OBJECT_NVIF = NVIF_IOCTL_V0_OWNER_NVIF,
79 	NVDRM_OBJECT_USIF,
80 	NVDRM_OBJECT_ABI16,
81 	NVDRM_OBJECT_ANY = NVIF_IOCTL_V0_OWNER_ANY,
82 };
83 
84 enum nouveau_drm_notify_route {
85 	NVDRM_NOTIFY_NVIF = 0,
86 	NVDRM_NOTIFY_USIF
87 };
88 
89 enum nouveau_drm_handle {
90 	NVDRM_CHAN    = 0xcccc0000, /* |= client chid */
91 	NVDRM_NVSW    = 0x55550000,
92 };
93 
94 struct nouveau_cli {
95 	struct nvif_client base;
96 	struct nouveau_drm *drm;
97 	struct mutex mutex;
98 
99 	struct nvif_device device;
100 	struct nvif_mmu mmu;
101 	struct nouveau_vmm vmm;
102 	struct nouveau_vmm svm;
103 	const struct nvif_mclass *mem;
104 
105 	struct list_head head;
106 	void *abi16;
107 	struct list_head objects;
108 	struct list_head notifys;
109 	char name[32];
110 
111 	struct work_struct work;
112 	struct list_head worker;
113 	struct mutex lock;
114 };
115 
116 struct nouveau_cli_work {
117 	void (*func)(struct nouveau_cli_work *);
118 	struct nouveau_cli *cli;
119 	struct list_head head;
120 
121 	struct dma_fence *fence;
122 	struct dma_fence_cb cb;
123 };
124 
125 void nouveau_cli_work_queue(struct nouveau_cli *, struct dma_fence *,
126 			    struct nouveau_cli_work *);
127 
128 static inline struct nouveau_cli *
nouveau_cli(struct drm_file * fpriv)129 nouveau_cli(struct drm_file *fpriv)
130 {
131 	return fpriv ? fpriv->driver_priv : NULL;
132 }
133 
134 #include <nvif/object.h>
135 #include <nvif/parent.h>
136 
137 struct nouveau_drm {
138 	struct nvif_parent parent;
139 	struct nouveau_cli master;
140 	struct nouveau_cli client;
141 	struct drm_device *dev;
142 
143 	struct list_head clients;
144 
145 	u8 old_pm_cap;
146 
147 	struct {
148 		struct agp_bridge_data *bridge;
149 		u32 base;
150 		u32 size;
151 		bool cma;
152 	} agp;
153 
154 	/* TTM interface support */
155 	struct {
156 		struct ttm_bo_device bdev;
157 		atomic_t validate_sequence;
158 		int (*move)(struct nouveau_channel *,
159 			    struct ttm_buffer_object *,
160 			    struct ttm_resource *, struct ttm_resource *);
161 		struct nouveau_channel *chan;
162 		struct nvif_object copy;
163 		int mtrr;
164 		int type_vram;
165 		int type_host[2];
166 		int type_ncoh[2];
167 		struct mutex io_reserve_mutex;
168 		struct list_head io_reserve_lru;
169 	} ttm;
170 
171 	/* GEM interface support */
172 	struct {
173 		u64 vram_available;
174 		u64 gart_available;
175 	} gem;
176 
177 	/* synchronisation */
178 	void *fence;
179 
180 	/* Global channel management. */
181 	struct {
182 		int nr;
183 		u64 context_base;
184 	} chan;
185 
186 	/* context for accelerated drm-internal operations */
187 	struct nouveau_channel *cechan;
188 	struct nouveau_channel *channel;
189 	struct nvkm_gpuobj *notify;
190 	struct nouveau_fbdev *fbcon;
191 	struct nvif_object ntfy;
192 
193 	/* nv10-nv40 tiling regions */
194 	struct {
195 		struct nouveau_drm_tile reg[15];
196 		spinlock_t lock;
197 	} tile;
198 
199 	/* modesetting */
200 	struct nvbios vbios;
201 	struct nouveau_display *display;
202 	struct work_struct hpd_work;
203 	struct mutex hpd_lock;
204 	u32 hpd_pending;
205 	struct work_struct fbcon_work;
206 	int fbcon_new_state;
207 #ifdef CONFIG_ACPI
208 	struct notifier_block acpi_nb;
209 #endif
210 
211 	/* power management */
212 	struct nouveau_hwmon *hwmon;
213 	struct nouveau_debugfs *debugfs;
214 
215 	/* led management */
216 	struct nouveau_led *led;
217 
218 	struct dev_pm_domain vga_pm_domain;
219 
220 	struct nouveau_svm *svm;
221 
222 	struct nouveau_dmem *dmem;
223 
224 	struct {
225 		struct drm_audio_component *component;
226 		bool component_registered;
227 	} audio;
228 };
229 
230 static inline struct nouveau_drm *
nouveau_drm(struct drm_device * dev)231 nouveau_drm(struct drm_device *dev)
232 {
233 	return dev->dev_private;
234 }
235 
236 static inline bool
nouveau_drm_use_coherent_gpu_mapping(struct nouveau_drm * drm)237 nouveau_drm_use_coherent_gpu_mapping(struct nouveau_drm *drm)
238 {
239 	struct nvif_mmu *mmu = &drm->client.mmu;
240 	return !(mmu->type[drm->ttm.type_host[0]].type & NVIF_MEM_UNCACHED);
241 }
242 
243 int nouveau_pmops_suspend(struct device *);
244 int nouveau_pmops_resume(struct device *);
245 bool nouveau_pmops_runtime(void);
246 
247 #include <nvkm/core/tegra.h>
248 
249 struct drm_device *
250 nouveau_platform_device_create(const struct nvkm_device_tegra_func *,
251 			       struct platform_device *, struct nvkm_device **);
252 void nouveau_drm_device_remove(struct drm_device *dev);
253 
254 #define NV_PRINTK(l,c,f,a...) do {                                             \
255 	struct nouveau_cli *_cli = (c);                                        \
256 	dev_##l(_cli->drm->dev->dev, "%s: "f, _cli->name, ##a);                \
257 } while(0)
258 
259 #define NV_FATAL(drm,f,a...) NV_PRINTK(crit, &(drm)->client, f, ##a)
260 #define NV_ERROR(drm,f,a...) NV_PRINTK(err, &(drm)->client, f, ##a)
261 #define NV_WARN(drm,f,a...) NV_PRINTK(warn, &(drm)->client, f, ##a)
262 #define NV_INFO(drm,f,a...) NV_PRINTK(info, &(drm)->client, f, ##a)
263 
264 #define NV_DEBUG(drm,f,a...) do {                                              \
265 	if (drm_debug_enabled(DRM_UT_DRIVER))                                  \
266 		NV_PRINTK(info, &(drm)->client, f, ##a);                       \
267 } while(0)
268 #define NV_ATOMIC(drm,f,a...) do {                                             \
269 	if (drm_debug_enabled(DRM_UT_ATOMIC))                                  \
270 		NV_PRINTK(info, &(drm)->client, f, ##a);                       \
271 } while(0)
272 
273 #define NV_PRINTK_ONCE(l,c,f,a...) NV_PRINTK(l##_once,c,f, ##a)
274 
275 #define NV_ERROR_ONCE(drm,f,a...) NV_PRINTK_ONCE(err, &(drm)->client, f, ##a)
276 #define NV_WARN_ONCE(drm,f,a...) NV_PRINTK_ONCE(warn, &(drm)->client, f, ##a)
277 #define NV_INFO_ONCE(drm,f,a...) NV_PRINTK_ONCE(info, &(drm)->client, f, ##a)
278 
279 extern int nouveau_modeset;
280 
281 #endif
282