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 
58 #include <drm/drm_audio_component.h>
59 
60 #include "uapi/drm/nouveau_drm.h"
61 
62 struct nouveau_channel;
63 struct platform_device;
64 
65 #include "nouveau_fence.h"
66 #include "nouveau_bios.h"
67 #include "nouveau_vmm.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_notify_route {
82 	NVDRM_NOTIFY_NVIF = 0,
83 	NVDRM_NOTIFY_USIF
84 };
85 
86 enum nouveau_drm_handle {
87 	NVDRM_CHAN    = 0xcccc0000, /* |= client chid */
88 	NVDRM_NVSW    = 0x55550000,
89 };
90 
91 struct nouveau_cli {
92 	struct nvif_client base;
93 	struct nouveau_drm *drm;
94 	struct mutex mutex;
95 
96 	struct nvif_device device;
97 	struct nvif_mmu mmu;
98 	struct nouveau_vmm vmm;
99 	struct nouveau_vmm svm;
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 void nouveau_cli_work_queue(struct nouveau_cli *, struct dma_fence *,
122 			    struct nouveau_cli_work *);
123 
124 static inline struct nouveau_cli *
nouveau_cli(struct drm_file * fpriv)125 nouveau_cli(struct drm_file *fpriv)
126 {
127 	return fpriv ? fpriv->driver_priv : NULL;
128 }
129 
130 #include <nvif/object.h>
131 #include <nvif/parent.h>
132 
133 struct nouveau_drm {
134 	struct nvif_parent parent;
135 	struct nouveau_cli master;
136 	struct nouveau_cli client;
137 	struct drm_device *dev;
138 
139 	struct list_head clients;
140 
141 	/**
142 	 * @clients_lock: Protects access to the @clients list of &struct nouveau_cli.
143 	 */
144 	struct mutex clients_lock;
145 
146 	u8 old_pm_cap;
147 
148 	struct {
149 		struct agp_bridge_data *bridge;
150 		u32 base;
151 		u32 size;
152 		bool cma;
153 	} agp;
154 
155 	/* TTM interface support */
156 	struct {
157 		struct ttm_device bdev;
158 		atomic_t validate_sequence;
159 		int (*move)(struct nouveau_channel *,
160 			    struct ttm_buffer_object *,
161 			    struct ttm_resource *, struct ttm_resource *);
162 		struct nouveau_channel *chan;
163 		struct nvif_object copy;
164 		int mtrr;
165 		int type_vram;
166 		int type_host[2];
167 		int type_ncoh[2];
168 		struct mutex io_reserve_mutex;
169 		struct list_head io_reserve_lru;
170 	} ttm;
171 
172 	/* GEM interface support */
173 	struct {
174 		u64 vram_available;
175 		u64 gart_available;
176 	} gem;
177 
178 	/* synchronisation */
179 	void *fence;
180 
181 	/* Global channel management. */
182 	struct {
183 		int nr;
184 		u64 context_base;
185 	} chan;
186 
187 	/* context for accelerated drm-internal operations */
188 	struct nouveau_channel *cechan;
189 	struct nouveau_channel *channel;
190 	struct nvkm_gpuobj *notify;
191 	struct nouveau_fbdev *fbcon;
192 	struct nvif_object ntfy;
193 
194 	/* nv10-nv40 tiling regions */
195 	struct {
196 		struct nouveau_drm_tile reg[15];
197 		spinlock_t lock;
198 	} tile;
199 
200 	/* modesetting */
201 	struct nvbios vbios;
202 	struct nouveau_display *display;
203 	struct work_struct hpd_work;
204 	struct mutex hpd_lock;
205 	u32 hpd_pending;
206 	struct work_struct fbcon_work;
207 	int fbcon_new_state;
208 #ifdef CONFIG_ACPI
209 	struct notifier_block acpi_nb;
210 #endif
211 
212 	/* power management */
213 	struct nouveau_hwmon *hwmon;
214 	struct nouveau_debugfs *debugfs;
215 
216 	/* led management */
217 	struct nouveau_led *led;
218 
219 	struct dev_pm_domain vga_pm_domain;
220 
221 	struct nouveau_svm *svm;
222 
223 	struct nouveau_dmem *dmem;
224 
225 	struct {
226 		struct drm_audio_component *component;
227 		struct mutex lock;
228 		bool component_registered;
229 	} audio;
230 };
231 
232 static inline struct nouveau_drm *
nouveau_drm(struct drm_device * dev)233 nouveau_drm(struct drm_device *dev)
234 {
235 	return dev->dev_private;
236 }
237 
238 static inline bool
nouveau_drm_use_coherent_gpu_mapping(struct nouveau_drm * drm)239 nouveau_drm_use_coherent_gpu_mapping(struct nouveau_drm *drm)
240 {
241 	struct nvif_mmu *mmu = &drm->client.mmu;
242 	return !(mmu->type[drm->ttm.type_host[0]].type & NVIF_MEM_UNCACHED);
243 }
244 
245 int nouveau_pmops_suspend(struct device *);
246 int nouveau_pmops_resume(struct device *);
247 bool nouveau_pmops_runtime(void);
248 
249 #include <nvkm/core/tegra.h>
250 
251 struct drm_device *
252 nouveau_platform_device_create(const struct nvkm_device_tegra_func *,
253 			       struct platform_device *, struct nvkm_device **);
254 void nouveau_drm_device_remove(struct drm_device *dev);
255 
256 #define NV_PRINTK(l,c,f,a...) do {                                             \
257 	struct nouveau_cli *_cli = (c);                                        \
258 	dev_##l(_cli->drm->dev->dev, "%s: "f, _cli->name, ##a);                \
259 } while(0)
260 
261 #define NV_FATAL(drm,f,a...) NV_PRINTK(crit, &(drm)->client, f, ##a)
262 #define NV_ERROR(drm,f,a...) NV_PRINTK(err, &(drm)->client, f, ##a)
263 #define NV_WARN(drm,f,a...) NV_PRINTK(warn, &(drm)->client, f, ##a)
264 #define NV_INFO(drm,f,a...) NV_PRINTK(info, &(drm)->client, f, ##a)
265 
266 #define NV_DEBUG(drm,f,a...) do {                                              \
267 	if (drm_debug_enabled(DRM_UT_DRIVER))                                  \
268 		NV_PRINTK(info, &(drm)->client, f, ##a);                       \
269 } while(0)
270 #define NV_ATOMIC(drm,f,a...) do {                                             \
271 	if (drm_debug_enabled(DRM_UT_ATOMIC))                                  \
272 		NV_PRINTK(info, &(drm)->client, f, ##a);                       \
273 } while(0)
274 
275 #define NV_PRINTK_ONCE(l,c,f,a...) NV_PRINTK(l##_once,c,f, ##a)
276 
277 #define NV_ERROR_ONCE(drm,f,a...) NV_PRINTK_ONCE(err, &(drm)->client, f, ##a)
278 #define NV_WARN_ONCE(drm,f,a...) NV_PRINTK_ONCE(warn, &(drm)->client, f, ##a)
279 #define NV_INFO_ONCE(drm,f,a...) NV_PRINTK_ONCE(info, &(drm)->client, f, ##a)
280 
281 extern int nouveau_modeset;
282 
283 #endif
284