1 /* SPDX-License-Identifier: GPL-2.0 */
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/drmP.h>
50 
51 #include <drm/ttm/ttm_bo_api.h>
52 #include <drm/ttm/ttm_bo_driver.h>
53 #include <drm/ttm/ttm_placement.h>
54 #include <drm/ttm/ttm_memory.h>
55 #include <drm/ttm/ttm_module.h>
56 #include <drm/ttm/ttm_page_alloc.h>
57 
58 #include "uapi/drm/nouveau_drm.h"
59 
60 struct nouveau_channel;
61 struct platform_device;
62 
63 #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
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 	const struct nvif_mclass *mem;
100 
101 	struct list_head head;
102 	void *abi16;
103 	struct list_head objects;
104 	struct list_head notifys;
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/device.h>
132 
133 struct nouveau_drm {
134 	struct nouveau_cli master;
135 	struct nouveau_cli client;
136 	struct drm_device *dev;
137 
138 	struct list_head clients;
139 
140 	struct {
141 		struct agp_bridge_data *bridge;
142 		u32 base;
143 		u32 size;
144 		bool cma;
145 	} agp;
146 
147 	/* TTM interface support */
148 	struct {
149 		struct drm_global_reference mem_global_ref;
150 		struct ttm_bo_global_ref bo_global_ref;
151 		struct ttm_bo_device bdev;
152 		atomic_t validate_sequence;
153 		int (*move)(struct nouveau_channel *,
154 			    struct ttm_buffer_object *,
155 			    struct ttm_mem_reg *, struct ttm_mem_reg *);
156 		struct nouveau_channel *chan;
157 		struct nvif_object copy;
158 		int mtrr;
159 		int type_vram;
160 		int type_host[2];
161 		int type_ncoh[2];
162 	} ttm;
163 
164 	/* GEM interface support */
165 	struct {
166 		u64 vram_available;
167 		u64 gart_available;
168 	} gem;
169 
170 	/* synchronisation */
171 	void *fence;
172 
173 	/* Global channel management. */
174 	struct {
175 		int nr;
176 		u64 context_base;
177 	} chan;
178 
179 	/* context for accelerated drm-internal operations */
180 	struct nouveau_channel *cechan;
181 	struct nouveau_channel *channel;
182 	struct nvkm_gpuobj *notify;
183 	struct nouveau_fbdev *fbcon;
184 	struct nvif_object nvsw;
185 	struct nvif_object ntfy;
186 	struct nvif_notify flip;
187 
188 	/* nv10-nv40 tiling regions */
189 	struct {
190 		struct nouveau_drm_tile reg[15];
191 		spinlock_t lock;
192 	} tile;
193 
194 	/* modesetting */
195 	struct nvbios vbios;
196 	struct nouveau_display *display;
197 	struct backlight_device *backlight;
198 	struct list_head bl_connectors;
199 	struct work_struct hpd_work;
200 	struct work_struct fbcon_work;
201 	int fbcon_new_state;
202 #ifdef CONFIG_ACPI
203 	struct notifier_block acpi_nb;
204 #endif
205 
206 	/* power management */
207 	struct nouveau_hwmon *hwmon;
208 	struct nouveau_debugfs *debugfs;
209 
210 	/* led management */
211 	struct nouveau_led *led;
212 
213 	/* display power reference */
214 	bool have_disp_power_ref;
215 
216 	struct dev_pm_domain vga_pm_domain;
217 };
218 
219 static inline struct nouveau_drm *
nouveau_drm(struct drm_device * dev)220 nouveau_drm(struct drm_device *dev)
221 {
222 	return dev->dev_private;
223 }
224 
225 static inline bool
nouveau_drm_use_coherent_gpu_mapping(struct nouveau_drm * drm)226 nouveau_drm_use_coherent_gpu_mapping(struct nouveau_drm *drm)
227 {
228 	struct nvif_mmu *mmu = &drm->client.mmu;
229 	return !(mmu->type[drm->ttm.type_host[0]].type & NVIF_MEM_UNCACHED);
230 }
231 
232 int nouveau_pmops_suspend(struct device *);
233 int nouveau_pmops_resume(struct device *);
234 bool nouveau_pmops_runtime(void);
235 
236 #include <nvkm/core/tegra.h>
237 
238 struct drm_device *
239 nouveau_platform_device_create(const struct nvkm_device_tegra_func *,
240 			       struct platform_device *, struct nvkm_device **);
241 void nouveau_drm_device_remove(struct drm_device *dev);
242 
243 #define NV_PRINTK(l,c,f,a...) do {                                             \
244 	struct nouveau_cli *_cli = (c);                                        \
245 	dev_##l(_cli->drm->dev->dev, "%s: "f, _cli->name, ##a);                \
246 } while(0)
247 #define NV_FATAL(drm,f,a...) NV_PRINTK(crit, &(drm)->client, f, ##a)
248 #define NV_ERROR(drm,f,a...) NV_PRINTK(err, &(drm)->client, f, ##a)
249 #define NV_WARN(drm,f,a...) NV_PRINTK(warn, &(drm)->client, f, ##a)
250 #define NV_INFO(drm,f,a...) NV_PRINTK(info, &(drm)->client, f, ##a)
251 #define NV_DEBUG(drm,f,a...) do {                                              \
252 	if (unlikely(drm_debug & DRM_UT_DRIVER))                               \
253 		NV_PRINTK(info, &(drm)->client, f, ##a);                       \
254 } while(0)
255 #define NV_ATOMIC(drm,f,a...) do {                                             \
256 	if (unlikely(drm_debug & DRM_UT_ATOMIC))                               \
257 		NV_PRINTK(info, &(drm)->client, f, ##a);                       \
258 } while(0)
259 
260 extern int nouveau_modeset;
261 
262 #endif
263