nouveau_drv.h revision 5178d40dff23b5eef7f0a3be2411fa6a347e750d
1/*
2 * Copyright 2005 Stephane Marchesin.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25#ifndef __NOUVEAU_DRV_H__
26#define __NOUVEAU_DRV_H__
27
28#define DRIVER_AUTHOR		"Stephane Marchesin"
29#define DRIVER_EMAIL		"dri-devel@lists.sourceforge.net"
30
31#define DRIVER_NAME		"nouveau"
32#define DRIVER_DESC		"nVidia Riva/TNT/GeForce"
33#define DRIVER_DATE		"20090420"
34
35#define DRIVER_MAJOR		0
36#define DRIVER_MINOR		0
37#define DRIVER_PATCHLEVEL	16
38
39#define NOUVEAU_FAMILY   0x0000FFFF
40#define NOUVEAU_FLAGS    0xFFFF0000
41
42#include "ttm/ttm_bo_api.h"
43#include "ttm/ttm_bo_driver.h"
44#include "ttm/ttm_placement.h"
45#include "ttm/ttm_memory.h"
46#include "ttm/ttm_module.h"
47
48struct nouveau_fpriv {
49	struct ttm_object_file *tfile;
50};
51
52#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
53
54#include "nouveau_drm.h"
55#include "nouveau_reg.h"
56#include "nouveau_bios.h"
57struct nouveau_grctx;
58
59#define MAX_NUM_DCB_ENTRIES 16
60
61#define NOUVEAU_MAX_CHANNEL_NR 128
62#define NOUVEAU_MAX_TILE_NR 15
63
64#define NV50_VM_MAX_VRAM (2*1024*1024*1024ULL)
65#define NV50_VM_BLOCK    (512*1024*1024ULL)
66#define NV50_VM_VRAM_NR  (NV50_VM_MAX_VRAM / NV50_VM_BLOCK)
67
68struct nouveau_tile_reg {
69	bool used;
70	uint32_t addr;
71	uint32_t limit;
72	uint32_t pitch;
73	uint32_t zcomp;
74	struct drm_mm_node *tag_mem;
75	struct nouveau_fence *fence;
76};
77
78struct nouveau_bo {
79	struct ttm_buffer_object bo;
80	struct ttm_placement placement;
81	u32 placements[3];
82	u32 busy_placements[3];
83	struct ttm_bo_kmap_obj kmap;
84	struct list_head head;
85
86	/* protected by ttm_bo_reserve() */
87	struct drm_file *reserved_by;
88	struct list_head entry;
89	int pbbo_index;
90	bool validate_mapped;
91
92	struct nouveau_channel *channel;
93
94	bool mappable;
95	bool no_vm;
96
97	uint32_t tile_mode;
98	uint32_t tile_flags;
99	struct nouveau_tile_reg *tile;
100
101	struct drm_gem_object *gem;
102	int pin_refcnt;
103};
104
105#define nouveau_bo_tile_layout(nvbo)				\
106	((nvbo)->tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK)
107
108static inline struct nouveau_bo *
109nouveau_bo(struct ttm_buffer_object *bo)
110{
111	return container_of(bo, struct nouveau_bo, bo);
112}
113
114static inline struct nouveau_bo *
115nouveau_gem_object(struct drm_gem_object *gem)
116{
117	return gem ? gem->driver_private : NULL;
118}
119
120/* TODO: submit equivalent to TTM generic API upstream? */
121static inline void __iomem *
122nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
123{
124	bool is_iomem;
125	void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
126						&nvbo->kmap, &is_iomem);
127	WARN_ON_ONCE(ioptr && !is_iomem);
128	return ioptr;
129}
130
131enum nouveau_flags {
132	NV_NFORCE   = 0x10000000,
133	NV_NFORCE2  = 0x20000000
134};
135
136#define NVOBJ_ENGINE_SW		0
137#define NVOBJ_ENGINE_GR		1
138#define NVOBJ_ENGINE_PPP	2
139#define NVOBJ_ENGINE_COPY	3
140#define NVOBJ_ENGINE_VP		4
141#define NVOBJ_ENGINE_CRYPT      5
142#define NVOBJ_ENGINE_BSP	6
143#define NVOBJ_ENGINE_DISPLAY	0xcafe0001
144#define NVOBJ_ENGINE_INT	0xdeadbeef
145
146#define NVOBJ_FLAG_ZERO_ALLOC		(1 << 1)
147#define NVOBJ_FLAG_ZERO_FREE		(1 << 2)
148struct nouveau_gpuobj {
149	struct drm_device *dev;
150	struct kref refcount;
151	struct list_head list;
152
153	struct drm_mm_node *im_pramin;
154	struct nouveau_bo *im_backing;
155	uint32_t *im_backing_suspend;
156	int im_bound;
157
158	uint32_t flags;
159
160	u32 size;
161	u32 pinst;
162	u32 cinst;
163	u64 vinst;
164
165	uint32_t engine;
166	uint32_t class;
167
168	void (*dtor)(struct drm_device *, struct nouveau_gpuobj *);
169	void *priv;
170};
171
172struct nouveau_page_flip_state {
173	struct list_head head;
174	struct drm_pending_vblank_event *event;
175	int crtc, bpp, pitch, x, y;
176	uint64_t offset;
177};
178
179enum nouveau_channel_mutex_class {
180	NOUVEAU_UCHANNEL_MUTEX,
181	NOUVEAU_KCHANNEL_MUTEX
182};
183
184struct nouveau_channel {
185	struct drm_device *dev;
186	int id;
187
188	/* references to the channel data structure */
189	struct kref ref;
190	/* users of the hardware channel resources, the hardware
191	 * context will be kicked off when it reaches zero. */
192	atomic_t users;
193	struct mutex mutex;
194
195	/* owner of this fifo */
196	struct drm_file *file_priv;
197	/* mapping of the fifo itself */
198	struct drm_local_map *map;
199
200	/* mapping of the regs controling the fifo */
201	void __iomem *user;
202	uint32_t user_get;
203	uint32_t user_put;
204
205	/* Fencing */
206	struct {
207		/* lock protects the pending list only */
208		spinlock_t lock;
209		struct list_head pending;
210		uint32_t sequence;
211		uint32_t sequence_ack;
212		atomic_t last_sequence_irq;
213	} fence;
214
215	/* DMA push buffer */
216	struct nouveau_gpuobj *pushbuf;
217	struct nouveau_bo     *pushbuf_bo;
218	uint32_t               pushbuf_base;
219
220	/* Notifier memory */
221	struct nouveau_bo *notifier_bo;
222	struct drm_mm notifier_heap;
223
224	/* PFIFO context */
225	struct nouveau_gpuobj *ramfc;
226	struct nouveau_gpuobj *cache;
227
228	/* PGRAPH context */
229	/* XXX may be merge 2 pointers as private data ??? */
230	struct nouveau_gpuobj *ramin_grctx;
231	struct nouveau_gpuobj *crypt_ctx;
232	void *pgraph_ctx;
233
234	/* NV50 VM */
235	struct nouveau_gpuobj *vm_pd;
236	struct nouveau_gpuobj *vm_gart_pt;
237	struct nouveau_gpuobj *vm_vram_pt[NV50_VM_VRAM_NR];
238
239	/* Objects */
240	struct nouveau_gpuobj *ramin; /* Private instmem */
241	struct drm_mm          ramin_heap; /* Private PRAMIN heap */
242	struct nouveau_ramht  *ramht; /* Hash table */
243
244	/* GPU object info for stuff used in-kernel (mm_enabled) */
245	uint32_t m2mf_ntfy;
246	uint32_t vram_handle;
247	uint32_t gart_handle;
248	bool accel_done;
249
250	/* Push buffer state (only for drm's channel on !mm_enabled) */
251	struct {
252		int max;
253		int free;
254		int cur;
255		int put;
256		/* access via pushbuf_bo */
257
258		int ib_base;
259		int ib_max;
260		int ib_free;
261		int ib_put;
262	} dma;
263
264	uint32_t sw_subchannel[8];
265
266	struct {
267		struct nouveau_gpuobj *vblsem;
268		uint32_t vblsem_head;
269		uint32_t vblsem_offset;
270		uint32_t vblsem_rval;
271		struct list_head vbl_wait;
272		struct list_head flip;
273	} nvsw;
274
275	struct {
276		bool active;
277		char name[32];
278		struct drm_info_list info;
279	} debugfs;
280};
281
282struct nouveau_instmem_engine {
283	void	*priv;
284
285	int	(*init)(struct drm_device *dev);
286	void	(*takedown)(struct drm_device *dev);
287	int	(*suspend)(struct drm_device *dev);
288	void	(*resume)(struct drm_device *dev);
289
290	int	(*populate)(struct drm_device *, struct nouveau_gpuobj *,
291			    u32 *size, u32 align);
292	void	(*clear)(struct drm_device *, struct nouveau_gpuobj *);
293	int	(*bind)(struct drm_device *, struct nouveau_gpuobj *);
294	int	(*unbind)(struct drm_device *, struct nouveau_gpuobj *);
295	void	(*flush)(struct drm_device *);
296};
297
298struct nouveau_mc_engine {
299	int  (*init)(struct drm_device *dev);
300	void (*takedown)(struct drm_device *dev);
301};
302
303struct nouveau_timer_engine {
304	int      (*init)(struct drm_device *dev);
305	void     (*takedown)(struct drm_device *dev);
306	uint64_t (*read)(struct drm_device *dev);
307};
308
309struct nouveau_fb_engine {
310	int num_tiles;
311	struct drm_mm tag_heap;
312
313	int  (*init)(struct drm_device *dev);
314	void (*takedown)(struct drm_device *dev);
315
316	void (*init_tile_region)(struct drm_device *dev, int i,
317				 uint32_t addr, uint32_t size,
318				 uint32_t pitch, uint32_t flags);
319	void (*set_tile_region)(struct drm_device *dev, int i);
320	void (*free_tile_region)(struct drm_device *dev, int i);
321};
322
323struct nouveau_fifo_engine {
324	int  channels;
325
326	struct nouveau_gpuobj *playlist[2];
327	int cur_playlist;
328
329	int  (*init)(struct drm_device *);
330	void (*takedown)(struct drm_device *);
331
332	void (*disable)(struct drm_device *);
333	void (*enable)(struct drm_device *);
334	bool (*reassign)(struct drm_device *, bool enable);
335	bool (*cache_pull)(struct drm_device *dev, bool enable);
336
337	int  (*channel_id)(struct drm_device *);
338
339	int  (*create_context)(struct nouveau_channel *);
340	void (*destroy_context)(struct nouveau_channel *);
341	int  (*load_context)(struct nouveau_channel *);
342	int  (*unload_context)(struct drm_device *);
343	void (*tlb_flush)(struct drm_device *dev);
344};
345
346struct nouveau_pgraph_engine {
347	bool accel_blocked;
348	bool registered;
349	int grctx_size;
350
351	/* NV2x/NV3x context table (0x400780) */
352	struct nouveau_gpuobj *ctx_table;
353
354	int  (*init)(struct drm_device *);
355	void (*takedown)(struct drm_device *);
356
357	void (*fifo_access)(struct drm_device *, bool);
358
359	struct nouveau_channel *(*channel)(struct drm_device *);
360	int  (*create_context)(struct nouveau_channel *);
361	void (*destroy_context)(struct nouveau_channel *);
362	int  (*load_context)(struct nouveau_channel *);
363	int  (*unload_context)(struct drm_device *);
364	void (*tlb_flush)(struct drm_device *dev);
365
366	void (*set_tile_region)(struct drm_device *dev, int i);
367};
368
369struct nouveau_display_engine {
370	int (*early_init)(struct drm_device *);
371	void (*late_takedown)(struct drm_device *);
372	int (*create)(struct drm_device *);
373	int (*init)(struct drm_device *);
374	void (*destroy)(struct drm_device *);
375};
376
377struct nouveau_gpio_engine {
378	int  (*init)(struct drm_device *);
379	void (*takedown)(struct drm_device *);
380
381	int  (*get)(struct drm_device *, enum dcb_gpio_tag);
382	int  (*set)(struct drm_device *, enum dcb_gpio_tag, int state);
383
384	void (*irq_enable)(struct drm_device *, enum dcb_gpio_tag, bool on);
385};
386
387struct nouveau_pm_voltage_level {
388	u8 voltage;
389	u8 vid;
390};
391
392struct nouveau_pm_voltage {
393	bool supported;
394	u8 vid_mask;
395
396	struct nouveau_pm_voltage_level *level;
397	int nr_level;
398};
399
400#define NOUVEAU_PM_MAX_LEVEL 8
401struct nouveau_pm_level {
402	struct device_attribute dev_attr;
403	char name[32];
404	int id;
405
406	u32 core;
407	u32 memory;
408	u32 shader;
409	u32 unk05;
410
411	u8 voltage;
412	u8 fanspeed;
413
414	u16 memscript;
415};
416
417struct nouveau_pm_temp_sensor_constants {
418	u16 offset_constant;
419	s16 offset_mult;
420	u16 offset_div;
421	u16 slope_mult;
422	u16 slope_div;
423};
424
425struct nouveau_pm_threshold_temp {
426	s16 critical;
427	s16 down_clock;
428	s16 fan_boost;
429};
430
431struct nouveau_pm_memtiming {
432	u32 reg_100220;
433	u32 reg_100224;
434	u32 reg_100228;
435	u32 reg_10022c;
436	u32 reg_100230;
437	u32 reg_100234;
438	u32 reg_100238;
439	u32 reg_10023c;
440};
441
442struct nouveau_pm_memtimings {
443	bool supported;
444	struct nouveau_pm_memtiming *timing;
445	int nr_timing;
446};
447
448struct nouveau_pm_engine {
449	struct nouveau_pm_voltage voltage;
450	struct nouveau_pm_level perflvl[NOUVEAU_PM_MAX_LEVEL];
451	int nr_perflvl;
452	struct nouveau_pm_memtimings memtimings;
453	struct nouveau_pm_temp_sensor_constants sensor_constants;
454	struct nouveau_pm_threshold_temp threshold_temp;
455
456	struct nouveau_pm_level boot;
457	struct nouveau_pm_level *cur;
458
459	struct device *hwmon;
460	struct notifier_block acpi_nb;
461
462	int (*clock_get)(struct drm_device *, u32 id);
463	void *(*clock_pre)(struct drm_device *, struct nouveau_pm_level *,
464			   u32 id, int khz);
465	void (*clock_set)(struct drm_device *, void *);
466	int (*voltage_get)(struct drm_device *);
467	int (*voltage_set)(struct drm_device *, int voltage);
468	int (*fanspeed_get)(struct drm_device *);
469	int (*fanspeed_set)(struct drm_device *, int fanspeed);
470	int (*temp_get)(struct drm_device *);
471};
472
473struct nouveau_crypt_engine {
474	bool registered;
475
476	int  (*init)(struct drm_device *);
477	void (*takedown)(struct drm_device *);
478	int  (*create_context)(struct nouveau_channel *);
479	void (*destroy_context)(struct nouveau_channel *);
480	void (*tlb_flush)(struct drm_device *dev);
481};
482
483struct nouveau_engine {
484	struct nouveau_instmem_engine instmem;
485	struct nouveau_mc_engine      mc;
486	struct nouveau_timer_engine   timer;
487	struct nouveau_fb_engine      fb;
488	struct nouveau_pgraph_engine  graph;
489	struct nouveau_fifo_engine    fifo;
490	struct nouveau_display_engine display;
491	struct nouveau_gpio_engine    gpio;
492	struct nouveau_pm_engine      pm;
493	struct nouveau_crypt_engine   crypt;
494};
495
496struct nouveau_pll_vals {
497	union {
498		struct {
499#ifdef __BIG_ENDIAN
500			uint8_t N1, M1, N2, M2;
501#else
502			uint8_t M1, N1, M2, N2;
503#endif
504		};
505		struct {
506			uint16_t NM1, NM2;
507		} __attribute__((packed));
508	};
509	int log2P;
510
511	int refclk;
512};
513
514enum nv04_fp_display_regs {
515	FP_DISPLAY_END,
516	FP_TOTAL,
517	FP_CRTC,
518	FP_SYNC_START,
519	FP_SYNC_END,
520	FP_VALID_START,
521	FP_VALID_END
522};
523
524struct nv04_crtc_reg {
525	unsigned char MiscOutReg;
526	uint8_t CRTC[0xa0];
527	uint8_t CR58[0x10];
528	uint8_t Sequencer[5];
529	uint8_t Graphics[9];
530	uint8_t Attribute[21];
531	unsigned char DAC[768];
532
533	/* PCRTC regs */
534	uint32_t fb_start;
535	uint32_t crtc_cfg;
536	uint32_t cursor_cfg;
537	uint32_t gpio_ext;
538	uint32_t crtc_830;
539	uint32_t crtc_834;
540	uint32_t crtc_850;
541	uint32_t crtc_eng_ctrl;
542
543	/* PRAMDAC regs */
544	uint32_t nv10_cursync;
545	struct nouveau_pll_vals pllvals;
546	uint32_t ramdac_gen_ctrl;
547	uint32_t ramdac_630;
548	uint32_t ramdac_634;
549	uint32_t tv_setup;
550	uint32_t tv_vtotal;
551	uint32_t tv_vskew;
552	uint32_t tv_vsync_delay;
553	uint32_t tv_htotal;
554	uint32_t tv_hskew;
555	uint32_t tv_hsync_delay;
556	uint32_t tv_hsync_delay2;
557	uint32_t fp_horiz_regs[7];
558	uint32_t fp_vert_regs[7];
559	uint32_t dither;
560	uint32_t fp_control;
561	uint32_t dither_regs[6];
562	uint32_t fp_debug_0;
563	uint32_t fp_debug_1;
564	uint32_t fp_debug_2;
565	uint32_t fp_margin_color;
566	uint32_t ramdac_8c0;
567	uint32_t ramdac_a20;
568	uint32_t ramdac_a24;
569	uint32_t ramdac_a34;
570	uint32_t ctv_regs[38];
571};
572
573struct nv04_output_reg {
574	uint32_t output;
575	int head;
576};
577
578struct nv04_mode_state {
579	struct nv04_crtc_reg crtc_reg[2];
580	uint32_t pllsel;
581	uint32_t sel_clk;
582};
583
584enum nouveau_card_type {
585	NV_04      = 0x00,
586	NV_10      = 0x10,
587	NV_20      = 0x20,
588	NV_30      = 0x30,
589	NV_40      = 0x40,
590	NV_50      = 0x50,
591	NV_C0      = 0xc0,
592};
593
594struct drm_nouveau_private {
595	struct drm_device *dev;
596
597	/* the card type, takes NV_* as values */
598	enum nouveau_card_type card_type;
599	/* exact chipset, derived from NV_PMC_BOOT_0 */
600	int chipset;
601	int flags;
602
603	void __iomem *mmio;
604
605	spinlock_t ramin_lock;
606	void __iomem *ramin;
607	u32 ramin_size;
608	u32 ramin_base;
609	bool ramin_available;
610	struct drm_mm ramin_heap;
611	struct list_head gpuobj_list;
612	struct list_head classes;
613
614	struct nouveau_bo *vga_ram;
615
616	/* interrupt handling */
617	void (*irq_handler[32])(struct drm_device *);
618	bool msi_enabled;
619	struct workqueue_struct *wq;
620	struct work_struct irq_work;
621	struct work_struct hpd_work;
622
623	struct {
624		spinlock_t lock;
625		uint32_t hpd0_bits;
626		uint32_t hpd1_bits;
627	} hpd_state;
628
629	struct list_head vbl_waiting;
630
631	struct {
632		struct drm_global_reference mem_global_ref;
633		struct ttm_bo_global_ref bo_global_ref;
634		struct ttm_bo_device bdev;
635		atomic_t validate_sequence;
636	} ttm;
637
638	struct {
639		spinlock_t lock;
640		struct drm_mm heap;
641		struct nouveau_bo *bo;
642	} fence;
643
644	struct {
645		spinlock_t lock;
646		struct nouveau_channel *ptr[NOUVEAU_MAX_CHANNEL_NR];
647	} channels;
648
649	struct nouveau_engine engine;
650	struct nouveau_channel *channel;
651
652	/* For PFIFO and PGRAPH. */
653	spinlock_t context_switch_lock;
654
655	/* RAMIN configuration, RAMFC, RAMHT and RAMRO offsets */
656	struct nouveau_ramht  *ramht;
657	struct nouveau_gpuobj *ramfc;
658	struct nouveau_gpuobj *ramro;
659
660	uint32_t ramin_rsvd_vram;
661
662	struct {
663		enum {
664			NOUVEAU_GART_NONE = 0,
665			NOUVEAU_GART_AGP,
666			NOUVEAU_GART_SGDMA
667		} type;
668		uint64_t aper_base;
669		uint64_t aper_size;
670		uint64_t aper_free;
671
672		struct nouveau_gpuobj *sg_ctxdma;
673		struct page *sg_dummy_page;
674		dma_addr_t sg_dummy_bus;
675	} gart_info;
676
677	/* nv10-nv40 tiling regions */
678	struct {
679		struct nouveau_tile_reg reg[NOUVEAU_MAX_TILE_NR];
680		spinlock_t lock;
681	} tile;
682
683	/* VRAM/fb configuration */
684	uint64_t vram_size;
685	uint64_t vram_sys_base;
686	u32 vram_rblock_size;
687
688	uint64_t fb_phys;
689	uint64_t fb_available_size;
690	uint64_t fb_mappable_pages;
691	uint64_t fb_aper_free;
692	int fb_mtrr;
693
694	/* G8x/G9x virtual address space */
695	uint64_t vm_gart_base;
696	uint64_t vm_gart_size;
697	uint64_t vm_vram_base;
698	uint64_t vm_vram_size;
699	uint64_t vm_end;
700	struct nouveau_gpuobj *vm_vram_pt[NV50_VM_VRAM_NR];
701	int vm_vram_pt_nr;
702
703	struct nvbios vbios;
704
705	struct nv04_mode_state mode_reg;
706	struct nv04_mode_state saved_reg;
707	uint32_t saved_vga_font[4][16384];
708	uint32_t crtc_owner;
709	uint32_t dac_users[4];
710
711	struct nouveau_suspend_resume {
712		uint32_t *ramin_copy;
713	} susres;
714
715	struct backlight_device *backlight;
716
717	struct nouveau_channel *evo;
718	u32 evo_alloc;
719	struct {
720		struct dcb_entry *dcb;
721		u16 script;
722		u32 pclk;
723	} evo_irq;
724
725	struct {
726		struct dentry *channel_root;
727	} debugfs;
728
729	struct nouveau_fbdev *nfbdev;
730	struct apertures_struct *apertures;
731};
732
733static inline struct drm_nouveau_private *
734nouveau_private(struct drm_device *dev)
735{
736	return dev->dev_private;
737}
738
739static inline struct drm_nouveau_private *
740nouveau_bdev(struct ttm_bo_device *bd)
741{
742	return container_of(bd, struct drm_nouveau_private, ttm.bdev);
743}
744
745static inline int
746nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
747{
748	struct nouveau_bo *prev;
749
750	if (!pnvbo)
751		return -EINVAL;
752	prev = *pnvbo;
753
754	*pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
755	if (prev) {
756		struct ttm_buffer_object *bo = &prev->bo;
757
758		ttm_bo_unref(&bo);
759	}
760
761	return 0;
762}
763
764/* nouveau_drv.c */
765extern int nouveau_agpmode;
766extern int nouveau_duallink;
767extern int nouveau_uscript_lvds;
768extern int nouveau_uscript_tmds;
769extern int nouveau_vram_pushbuf;
770extern int nouveau_vram_notify;
771extern int nouveau_fbpercrtc;
772extern int nouveau_tv_disable;
773extern char *nouveau_tv_norm;
774extern int nouveau_reg_debug;
775extern char *nouveau_vbios;
776extern int nouveau_ignorelid;
777extern int nouveau_nofbaccel;
778extern int nouveau_noaccel;
779extern int nouveau_force_post;
780extern int nouveau_override_conntype;
781extern char *nouveau_perflvl;
782extern int nouveau_perflvl_wr;
783extern int nouveau_msi;
784
785extern int nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state);
786extern int nouveau_pci_resume(struct pci_dev *pdev);
787
788/* nouveau_state.c */
789extern void nouveau_preclose(struct drm_device *dev, struct drm_file *);
790extern int  nouveau_load(struct drm_device *, unsigned long flags);
791extern int  nouveau_firstopen(struct drm_device *);
792extern void nouveau_lastclose(struct drm_device *);
793extern int  nouveau_unload(struct drm_device *);
794extern int  nouveau_ioctl_getparam(struct drm_device *, void *data,
795				   struct drm_file *);
796extern int  nouveau_ioctl_setparam(struct drm_device *, void *data,
797				   struct drm_file *);
798extern bool nouveau_wait_until(struct drm_device *, uint64_t timeout,
799			       uint32_t reg, uint32_t mask, uint32_t val);
800extern bool nouveau_wait_for_idle(struct drm_device *);
801extern int  nouveau_card_init(struct drm_device *);
802
803/* nouveau_mem.c */
804extern int  nouveau_mem_vram_init(struct drm_device *);
805extern void nouveau_mem_vram_fini(struct drm_device *);
806extern int  nouveau_mem_gart_init(struct drm_device *);
807extern void nouveau_mem_gart_fini(struct drm_device *);
808extern int  nouveau_mem_init_agp(struct drm_device *);
809extern int  nouveau_mem_reset_agp(struct drm_device *);
810extern void nouveau_mem_close(struct drm_device *);
811extern struct nouveau_tile_reg *nv10_mem_set_tiling(
812	struct drm_device *dev, uint32_t addr, uint32_t size,
813	uint32_t pitch, uint32_t flags);
814extern void nv10_mem_put_tile_region(struct drm_device *dev,
815				     struct nouveau_tile_reg *tile,
816				     struct nouveau_fence *fence);
817extern int  nv50_mem_vm_bind_linear(struct drm_device *, uint64_t virt,
818				    uint32_t size, uint32_t flags,
819				    uint64_t phys);
820extern void nv50_mem_vm_unbind(struct drm_device *, uint64_t virt,
821			       uint32_t size);
822
823/* nouveau_notifier.c */
824extern int  nouveau_notifier_init_channel(struct nouveau_channel *);
825extern void nouveau_notifier_takedown_channel(struct nouveau_channel *);
826extern int  nouveau_notifier_alloc(struct nouveau_channel *, uint32_t handle,
827				   int cout, uint32_t *offset);
828extern int  nouveau_notifier_offset(struct nouveau_gpuobj *, uint32_t *);
829extern int  nouveau_ioctl_notifier_alloc(struct drm_device *, void *data,
830					 struct drm_file *);
831extern int  nouveau_ioctl_notifier_free(struct drm_device *, void *data,
832					struct drm_file *);
833
834/* nouveau_channel.c */
835extern struct drm_ioctl_desc nouveau_ioctls[];
836extern int nouveau_max_ioctl;
837extern void nouveau_channel_cleanup(struct drm_device *, struct drm_file *);
838extern int  nouveau_channel_alloc(struct drm_device *dev,
839				  struct nouveau_channel **chan,
840				  struct drm_file *file_priv,
841				  uint32_t fb_ctxdma, uint32_t tt_ctxdma);
842extern struct nouveau_channel *
843nouveau_channel_get_unlocked(struct nouveau_channel *);
844extern struct nouveau_channel *
845nouveau_channel_get(struct drm_device *, struct drm_file *, int id);
846extern void nouveau_channel_put_unlocked(struct nouveau_channel **);
847extern void nouveau_channel_put(struct nouveau_channel **);
848extern void nouveau_channel_ref(struct nouveau_channel *chan,
849				struct nouveau_channel **pchan);
850
851/* nouveau_object.c */
852#define NVOBJ_CLASS(d,c,e) do {                                                \
853	int ret = nouveau_gpuobj_class_new((d), (c), NVOBJ_ENGINE_##e);        \
854	if (ret)                                                               \
855		return ret;                                                    \
856} while(0)
857
858#define NVOBJ_MTHD(d,c,m,e) do {                                               \
859	int ret = nouveau_gpuobj_mthd_new((d), (c), (m), (e));                 \
860	if (ret)                                                               \
861		return ret;                                                    \
862} while(0)
863
864extern int  nouveau_gpuobj_early_init(struct drm_device *);
865extern int  nouveau_gpuobj_init(struct drm_device *);
866extern void nouveau_gpuobj_takedown(struct drm_device *);
867extern int  nouveau_gpuobj_suspend(struct drm_device *dev);
868extern void nouveau_gpuobj_suspend_cleanup(struct drm_device *dev);
869extern void nouveau_gpuobj_resume(struct drm_device *dev);
870extern int  nouveau_gpuobj_class_new(struct drm_device *, u32 class, u32 eng);
871extern int  nouveau_gpuobj_mthd_new(struct drm_device *, u32 class, u32 mthd,
872				    int (*exec)(struct nouveau_channel *,
873					        u32 class, u32 mthd, u32 data));
874extern int  nouveau_gpuobj_mthd_call(struct nouveau_channel *, u32, u32, u32);
875extern int nouveau_gpuobj_channel_init(struct nouveau_channel *,
876				       uint32_t vram_h, uint32_t tt_h);
877extern void nouveau_gpuobj_channel_takedown(struct nouveau_channel *);
878extern int nouveau_gpuobj_new(struct drm_device *, struct nouveau_channel *,
879			      uint32_t size, int align, uint32_t flags,
880			      struct nouveau_gpuobj **);
881extern void nouveau_gpuobj_ref(struct nouveau_gpuobj *,
882			       struct nouveau_gpuobj **);
883extern int nouveau_gpuobj_new_fake(struct drm_device *, u32 pinst, u64 vinst,
884				   u32 size, u32 flags,
885				   struct nouveau_gpuobj **);
886extern int nouveau_gpuobj_dma_new(struct nouveau_channel *, int class,
887				  uint64_t offset, uint64_t size, int access,
888				  int target, struct nouveau_gpuobj **);
889extern int nouveau_gpuobj_gart_dma_new(struct nouveau_channel *,
890				       uint64_t offset, uint64_t size,
891				       int access, struct nouveau_gpuobj **,
892				       uint32_t *o_ret);
893extern int nouveau_gpuobj_gr_new(struct nouveau_channel *, int class,
894				 struct nouveau_gpuobj **);
895extern int nouveau_ioctl_grobj_alloc(struct drm_device *, void *data,
896				     struct drm_file *);
897extern int nouveau_ioctl_gpuobj_free(struct drm_device *, void *data,
898				     struct drm_file *);
899
900/* nouveau_irq.c */
901extern int         nouveau_irq_init(struct drm_device *);
902extern void        nouveau_irq_fini(struct drm_device *);
903extern irqreturn_t nouveau_irq_handler(DRM_IRQ_ARGS);
904extern void        nouveau_irq_register(struct drm_device *, int status_bit,
905					void (*)(struct drm_device *));
906extern void        nouveau_irq_unregister(struct drm_device *, int status_bit);
907extern void        nouveau_irq_preinstall(struct drm_device *);
908extern int         nouveau_irq_postinstall(struct drm_device *);
909extern void        nouveau_irq_uninstall(struct drm_device *);
910
911/* nouveau_sgdma.c */
912extern int nouveau_sgdma_init(struct drm_device *);
913extern void nouveau_sgdma_takedown(struct drm_device *);
914extern int nouveau_sgdma_get_page(struct drm_device *, uint32_t offset,
915				  uint32_t *page);
916extern struct ttm_backend *nouveau_sgdma_init_ttm(struct drm_device *);
917
918/* nouveau_debugfs.c */
919#if defined(CONFIG_DRM_NOUVEAU_DEBUG)
920extern int  nouveau_debugfs_init(struct drm_minor *);
921extern void nouveau_debugfs_takedown(struct drm_minor *);
922extern int  nouveau_debugfs_channel_init(struct nouveau_channel *);
923extern void nouveau_debugfs_channel_fini(struct nouveau_channel *);
924#else
925static inline int
926nouveau_debugfs_init(struct drm_minor *minor)
927{
928	return 0;
929}
930
931static inline void nouveau_debugfs_takedown(struct drm_minor *minor)
932{
933}
934
935static inline int
936nouveau_debugfs_channel_init(struct nouveau_channel *chan)
937{
938	return 0;
939}
940
941static inline void
942nouveau_debugfs_channel_fini(struct nouveau_channel *chan)
943{
944}
945#endif
946
947/* nouveau_dma.c */
948extern void nouveau_dma_pre_init(struct nouveau_channel *);
949extern int  nouveau_dma_init(struct nouveau_channel *);
950extern int  nouveau_dma_wait(struct nouveau_channel *, int slots, int size);
951
952/* nouveau_acpi.c */
953#define ROM_BIOS_PAGE 4096
954#if defined(CONFIG_ACPI)
955void nouveau_register_dsm_handler(void);
956void nouveau_unregister_dsm_handler(void);
957int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len);
958bool nouveau_acpi_rom_supported(struct pci_dev *pdev);
959int nouveau_acpi_edid(struct drm_device *, struct drm_connector *);
960#else
961static inline void nouveau_register_dsm_handler(void) {}
962static inline void nouveau_unregister_dsm_handler(void) {}
963static inline bool nouveau_acpi_rom_supported(struct pci_dev *pdev) { return false; }
964static inline int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len) { return -EINVAL; }
965static inline int nouveau_acpi_edid(struct drm_device *dev, struct drm_connector *connector) { return -EINVAL; }
966#endif
967
968/* nouveau_backlight.c */
969#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
970extern int nouveau_backlight_init(struct drm_device *);
971extern void nouveau_backlight_exit(struct drm_device *);
972#else
973static inline int nouveau_backlight_init(struct drm_device *dev)
974{
975	return 0;
976}
977
978static inline void nouveau_backlight_exit(struct drm_device *dev) { }
979#endif
980
981/* nouveau_bios.c */
982extern int nouveau_bios_init(struct drm_device *);
983extern void nouveau_bios_takedown(struct drm_device *dev);
984extern int nouveau_run_vbios_init(struct drm_device *);
985extern void nouveau_bios_run_init_table(struct drm_device *, uint16_t table,
986					struct dcb_entry *);
987extern struct dcb_gpio_entry *nouveau_bios_gpio_entry(struct drm_device *,
988						      enum dcb_gpio_tag);
989extern struct dcb_connector_table_entry *
990nouveau_bios_connector_entry(struct drm_device *, int index);
991extern u32 get_pll_register(struct drm_device *, enum pll_types);
992extern int get_pll_limits(struct drm_device *, uint32_t limit_match,
993			  struct pll_lims *);
994extern int nouveau_bios_run_display_table(struct drm_device *,
995					  struct dcb_entry *,
996					  uint32_t script, int pxclk);
997extern void *nouveau_bios_dp_table(struct drm_device *, struct dcb_entry *,
998				   int *length);
999extern bool nouveau_bios_fp_mode(struct drm_device *, struct drm_display_mode *);
1000extern uint8_t *nouveau_bios_embedded_edid(struct drm_device *);
1001extern int nouveau_bios_parse_lvds_table(struct drm_device *, int pxclk,
1002					 bool *dl, bool *if_is_24bit);
1003extern int run_tmds_table(struct drm_device *, struct dcb_entry *,
1004			  int head, int pxclk);
1005extern int call_lvds_script(struct drm_device *, struct dcb_entry *, int head,
1006			    enum LVDS_script, int pxclk);
1007
1008/* nouveau_ttm.c */
1009int nouveau_ttm_global_init(struct drm_nouveau_private *);
1010void nouveau_ttm_global_release(struct drm_nouveau_private *);
1011int nouveau_ttm_mmap(struct file *, struct vm_area_struct *);
1012
1013/* nouveau_dp.c */
1014int nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
1015		     uint8_t *data, int data_nr);
1016bool nouveau_dp_detect(struct drm_encoder *);
1017bool nouveau_dp_link_train(struct drm_encoder *);
1018
1019/* nv04_fb.c */
1020extern int  nv04_fb_init(struct drm_device *);
1021extern void nv04_fb_takedown(struct drm_device *);
1022
1023/* nv10_fb.c */
1024extern int  nv10_fb_init(struct drm_device *);
1025extern void nv10_fb_takedown(struct drm_device *);
1026extern void nv10_fb_init_tile_region(struct drm_device *dev, int i,
1027				     uint32_t addr, uint32_t size,
1028				     uint32_t pitch, uint32_t flags);
1029extern void nv10_fb_set_tile_region(struct drm_device *dev, int i);
1030extern void nv10_fb_free_tile_region(struct drm_device *dev, int i);
1031
1032/* nv30_fb.c */
1033extern int  nv30_fb_init(struct drm_device *);
1034extern void nv30_fb_takedown(struct drm_device *);
1035extern void nv30_fb_init_tile_region(struct drm_device *dev, int i,
1036				     uint32_t addr, uint32_t size,
1037				     uint32_t pitch, uint32_t flags);
1038extern void nv30_fb_free_tile_region(struct drm_device *dev, int i);
1039
1040/* nv40_fb.c */
1041extern int  nv40_fb_init(struct drm_device *);
1042extern void nv40_fb_takedown(struct drm_device *);
1043extern void nv40_fb_set_tile_region(struct drm_device *dev, int i);
1044
1045/* nv50_fb.c */
1046extern int  nv50_fb_init(struct drm_device *);
1047extern void nv50_fb_takedown(struct drm_device *);
1048extern void nv50_fb_vm_trap(struct drm_device *, int display, const char *);
1049
1050/* nvc0_fb.c */
1051extern int  nvc0_fb_init(struct drm_device *);
1052extern void nvc0_fb_takedown(struct drm_device *);
1053
1054/* nv04_fifo.c */
1055extern int  nv04_fifo_init(struct drm_device *);
1056extern void nv04_fifo_fini(struct drm_device *);
1057extern void nv04_fifo_disable(struct drm_device *);
1058extern void nv04_fifo_enable(struct drm_device *);
1059extern bool nv04_fifo_reassign(struct drm_device *, bool);
1060extern bool nv04_fifo_cache_pull(struct drm_device *, bool);
1061extern int  nv04_fifo_channel_id(struct drm_device *);
1062extern int  nv04_fifo_create_context(struct nouveau_channel *);
1063extern void nv04_fifo_destroy_context(struct nouveau_channel *);
1064extern int  nv04_fifo_load_context(struct nouveau_channel *);
1065extern int  nv04_fifo_unload_context(struct drm_device *);
1066extern void nv04_fifo_isr(struct drm_device *);
1067
1068/* nv10_fifo.c */
1069extern int  nv10_fifo_init(struct drm_device *);
1070extern int  nv10_fifo_channel_id(struct drm_device *);
1071extern int  nv10_fifo_create_context(struct nouveau_channel *);
1072extern int  nv10_fifo_load_context(struct nouveau_channel *);
1073extern int  nv10_fifo_unload_context(struct drm_device *);
1074
1075/* nv40_fifo.c */
1076extern int  nv40_fifo_init(struct drm_device *);
1077extern int  nv40_fifo_create_context(struct nouveau_channel *);
1078extern int  nv40_fifo_load_context(struct nouveau_channel *);
1079extern int  nv40_fifo_unload_context(struct drm_device *);
1080
1081/* nv50_fifo.c */
1082extern int  nv50_fifo_init(struct drm_device *);
1083extern void nv50_fifo_takedown(struct drm_device *);
1084extern int  nv50_fifo_channel_id(struct drm_device *);
1085extern int  nv50_fifo_create_context(struct nouveau_channel *);
1086extern void nv50_fifo_destroy_context(struct nouveau_channel *);
1087extern int  nv50_fifo_load_context(struct nouveau_channel *);
1088extern int  nv50_fifo_unload_context(struct drm_device *);
1089extern void nv50_fifo_tlb_flush(struct drm_device *dev);
1090
1091/* nvc0_fifo.c */
1092extern int  nvc0_fifo_init(struct drm_device *);
1093extern void nvc0_fifo_takedown(struct drm_device *);
1094extern void nvc0_fifo_disable(struct drm_device *);
1095extern void nvc0_fifo_enable(struct drm_device *);
1096extern bool nvc0_fifo_reassign(struct drm_device *, bool);
1097extern bool nvc0_fifo_cache_pull(struct drm_device *, bool);
1098extern int  nvc0_fifo_channel_id(struct drm_device *);
1099extern int  nvc0_fifo_create_context(struct nouveau_channel *);
1100extern void nvc0_fifo_destroy_context(struct nouveau_channel *);
1101extern int  nvc0_fifo_load_context(struct nouveau_channel *);
1102extern int  nvc0_fifo_unload_context(struct drm_device *);
1103
1104/* nv04_graph.c */
1105extern int  nv04_graph_init(struct drm_device *);
1106extern void nv04_graph_takedown(struct drm_device *);
1107extern void nv04_graph_fifo_access(struct drm_device *, bool);
1108extern struct nouveau_channel *nv04_graph_channel(struct drm_device *);
1109extern int  nv04_graph_create_context(struct nouveau_channel *);
1110extern void nv04_graph_destroy_context(struct nouveau_channel *);
1111extern int  nv04_graph_load_context(struct nouveau_channel *);
1112extern int  nv04_graph_unload_context(struct drm_device *);
1113extern void nv04_graph_context_switch(struct drm_device *);
1114extern int  nv04_graph_mthd_page_flip(struct nouveau_channel *chan,
1115				      u32 class, u32 mthd, u32 data);
1116
1117/* nv10_graph.c */
1118extern int  nv10_graph_init(struct drm_device *);
1119extern void nv10_graph_takedown(struct drm_device *);
1120extern struct nouveau_channel *nv10_graph_channel(struct drm_device *);
1121extern int  nv10_graph_create_context(struct nouveau_channel *);
1122extern void nv10_graph_destroy_context(struct nouveau_channel *);
1123extern int  nv10_graph_load_context(struct nouveau_channel *);
1124extern int  nv10_graph_unload_context(struct drm_device *);
1125extern void nv10_graph_context_switch(struct drm_device *);
1126extern void nv10_graph_set_tile_region(struct drm_device *dev, int i);
1127
1128/* nv20_graph.c */
1129extern int  nv20_graph_create_context(struct nouveau_channel *);
1130extern void nv20_graph_destroy_context(struct nouveau_channel *);
1131extern int  nv20_graph_load_context(struct nouveau_channel *);
1132extern int  nv20_graph_unload_context(struct drm_device *);
1133extern int  nv20_graph_init(struct drm_device *);
1134extern void nv20_graph_takedown(struct drm_device *);
1135extern int  nv30_graph_init(struct drm_device *);
1136extern void nv20_graph_set_tile_region(struct drm_device *dev, int i);
1137
1138/* nv40_graph.c */
1139extern int  nv40_graph_init(struct drm_device *);
1140extern void nv40_graph_takedown(struct drm_device *);
1141extern struct nouveau_channel *nv40_graph_channel(struct drm_device *);
1142extern int  nv40_graph_create_context(struct nouveau_channel *);
1143extern void nv40_graph_destroy_context(struct nouveau_channel *);
1144extern int  nv40_graph_load_context(struct nouveau_channel *);
1145extern int  nv40_graph_unload_context(struct drm_device *);
1146extern void nv40_grctx_init(struct nouveau_grctx *);
1147extern void nv40_graph_set_tile_region(struct drm_device *dev, int i);
1148
1149/* nv50_graph.c */
1150extern int  nv50_graph_init(struct drm_device *);
1151extern void nv50_graph_takedown(struct drm_device *);
1152extern void nv50_graph_fifo_access(struct drm_device *, bool);
1153extern struct nouveau_channel *nv50_graph_channel(struct drm_device *);
1154extern int  nv50_graph_create_context(struct nouveau_channel *);
1155extern void nv50_graph_destroy_context(struct nouveau_channel *);
1156extern int  nv50_graph_load_context(struct nouveau_channel *);
1157extern int  nv50_graph_unload_context(struct drm_device *);
1158extern void nv50_graph_context_switch(struct drm_device *);
1159extern int  nv50_grctx_init(struct nouveau_grctx *);
1160extern void nv50_graph_tlb_flush(struct drm_device *dev);
1161extern void nv86_graph_tlb_flush(struct drm_device *dev);
1162
1163/* nvc0_graph.c */
1164extern int  nvc0_graph_init(struct drm_device *);
1165extern void nvc0_graph_takedown(struct drm_device *);
1166extern void nvc0_graph_fifo_access(struct drm_device *, bool);
1167extern struct nouveau_channel *nvc0_graph_channel(struct drm_device *);
1168extern int  nvc0_graph_create_context(struct nouveau_channel *);
1169extern void nvc0_graph_destroy_context(struct nouveau_channel *);
1170extern int  nvc0_graph_load_context(struct nouveau_channel *);
1171extern int  nvc0_graph_unload_context(struct drm_device *);
1172
1173/* nv84_crypt.c */
1174extern int  nv84_crypt_init(struct drm_device *dev);
1175extern void nv84_crypt_fini(struct drm_device *dev);
1176extern int  nv84_crypt_create_context(struct nouveau_channel *);
1177extern void nv84_crypt_destroy_context(struct nouveau_channel *);
1178extern void nv84_crypt_tlb_flush(struct drm_device *dev);
1179
1180/* nv04_instmem.c */
1181extern int  nv04_instmem_init(struct drm_device *);
1182extern void nv04_instmem_takedown(struct drm_device *);
1183extern int  nv04_instmem_suspend(struct drm_device *);
1184extern void nv04_instmem_resume(struct drm_device *);
1185extern int  nv04_instmem_populate(struct drm_device *, struct nouveau_gpuobj *,
1186				  u32 *size, u32 align);
1187extern void nv04_instmem_clear(struct drm_device *, struct nouveau_gpuobj *);
1188extern int  nv04_instmem_bind(struct drm_device *, struct nouveau_gpuobj *);
1189extern int  nv04_instmem_unbind(struct drm_device *, struct nouveau_gpuobj *);
1190extern void nv04_instmem_flush(struct drm_device *);
1191
1192/* nv50_instmem.c */
1193extern int  nv50_instmem_init(struct drm_device *);
1194extern void nv50_instmem_takedown(struct drm_device *);
1195extern int  nv50_instmem_suspend(struct drm_device *);
1196extern void nv50_instmem_resume(struct drm_device *);
1197extern int  nv50_instmem_populate(struct drm_device *, struct nouveau_gpuobj *,
1198				  u32 *size, u32 align);
1199extern void nv50_instmem_clear(struct drm_device *, struct nouveau_gpuobj *);
1200extern int  nv50_instmem_bind(struct drm_device *, struct nouveau_gpuobj *);
1201extern int  nv50_instmem_unbind(struct drm_device *, struct nouveau_gpuobj *);
1202extern void nv50_instmem_flush(struct drm_device *);
1203extern void nv84_instmem_flush(struct drm_device *);
1204extern void nv50_vm_flush(struct drm_device *, int engine);
1205
1206/* nvc0_instmem.c */
1207extern int  nvc0_instmem_init(struct drm_device *);
1208extern void nvc0_instmem_takedown(struct drm_device *);
1209extern int  nvc0_instmem_suspend(struct drm_device *);
1210extern void nvc0_instmem_resume(struct drm_device *);
1211extern int  nvc0_instmem_populate(struct drm_device *, struct nouveau_gpuobj *,
1212				  u32 *size, u32 align);
1213extern void nvc0_instmem_clear(struct drm_device *, struct nouveau_gpuobj *);
1214extern int  nvc0_instmem_bind(struct drm_device *, struct nouveau_gpuobj *);
1215extern int  nvc0_instmem_unbind(struct drm_device *, struct nouveau_gpuobj *);
1216extern void nvc0_instmem_flush(struct drm_device *);
1217
1218/* nv04_mc.c */
1219extern int  nv04_mc_init(struct drm_device *);
1220extern void nv04_mc_takedown(struct drm_device *);
1221
1222/* nv40_mc.c */
1223extern int  nv40_mc_init(struct drm_device *);
1224extern void nv40_mc_takedown(struct drm_device *);
1225
1226/* nv50_mc.c */
1227extern int  nv50_mc_init(struct drm_device *);
1228extern void nv50_mc_takedown(struct drm_device *);
1229
1230/* nv04_timer.c */
1231extern int  nv04_timer_init(struct drm_device *);
1232extern uint64_t nv04_timer_read(struct drm_device *);
1233extern void nv04_timer_takedown(struct drm_device *);
1234
1235extern long nouveau_compat_ioctl(struct file *file, unsigned int cmd,
1236				 unsigned long arg);
1237
1238/* nv04_dac.c */
1239extern int nv04_dac_create(struct drm_connector *, struct dcb_entry *);
1240extern uint32_t nv17_dac_sample_load(struct drm_encoder *encoder);
1241extern int nv04_dac_output_offset(struct drm_encoder *encoder);
1242extern void nv04_dac_update_dacclk(struct drm_encoder *encoder, bool enable);
1243extern bool nv04_dac_in_use(struct drm_encoder *encoder);
1244
1245/* nv04_dfp.c */
1246extern int nv04_dfp_create(struct drm_connector *, struct dcb_entry *);
1247extern int nv04_dfp_get_bound_head(struct drm_device *dev, struct dcb_entry *dcbent);
1248extern void nv04_dfp_bind_head(struct drm_device *dev, struct dcb_entry *dcbent,
1249			       int head, bool dl);
1250extern void nv04_dfp_disable(struct drm_device *dev, int head);
1251extern void nv04_dfp_update_fp_control(struct drm_encoder *encoder, int mode);
1252
1253/* nv04_tv.c */
1254extern int nv04_tv_identify(struct drm_device *dev, int i2c_index);
1255extern int nv04_tv_create(struct drm_connector *, struct dcb_entry *);
1256
1257/* nv17_tv.c */
1258extern int nv17_tv_create(struct drm_connector *, struct dcb_entry *);
1259
1260/* nv04_display.c */
1261extern int nv04_display_early_init(struct drm_device *);
1262extern void nv04_display_late_takedown(struct drm_device *);
1263extern int nv04_display_create(struct drm_device *);
1264extern int nv04_display_init(struct drm_device *);
1265extern void nv04_display_destroy(struct drm_device *);
1266
1267/* nv04_crtc.c */
1268extern int nv04_crtc_create(struct drm_device *, int index);
1269
1270/* nouveau_bo.c */
1271extern struct ttm_bo_driver nouveau_bo_driver;
1272extern int nouveau_bo_new(struct drm_device *, struct nouveau_channel *,
1273			  int size, int align, uint32_t flags,
1274			  uint32_t tile_mode, uint32_t tile_flags,
1275			  bool no_vm, bool mappable, struct nouveau_bo **);
1276extern int nouveau_bo_pin(struct nouveau_bo *, uint32_t flags);
1277extern int nouveau_bo_unpin(struct nouveau_bo *);
1278extern int nouveau_bo_map(struct nouveau_bo *);
1279extern void nouveau_bo_unmap(struct nouveau_bo *);
1280extern void nouveau_bo_placement_set(struct nouveau_bo *, uint32_t type,
1281				     uint32_t busy);
1282extern u16 nouveau_bo_rd16(struct nouveau_bo *nvbo, unsigned index);
1283extern void nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val);
1284extern u32 nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index);
1285extern void nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val);
1286extern void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *);
1287
1288/* nouveau_fence.c */
1289struct nouveau_fence;
1290extern int nouveau_fence_init(struct drm_device *);
1291extern void nouveau_fence_fini(struct drm_device *);
1292extern int nouveau_fence_channel_init(struct nouveau_channel *);
1293extern void nouveau_fence_channel_fini(struct nouveau_channel *);
1294extern void nouveau_fence_update(struct nouveau_channel *);
1295extern int nouveau_fence_new(struct nouveau_channel *, struct nouveau_fence **,
1296			     bool emit);
1297extern int nouveau_fence_emit(struct nouveau_fence *);
1298extern void nouveau_fence_work(struct nouveau_fence *fence,
1299			       void (*work)(void *priv, bool signalled),
1300			       void *priv);
1301struct nouveau_channel *nouveau_fence_channel(struct nouveau_fence *);
1302
1303extern bool __nouveau_fence_signalled(void *obj, void *arg);
1304extern int __nouveau_fence_wait(void *obj, void *arg, bool lazy, bool intr);
1305extern int __nouveau_fence_flush(void *obj, void *arg);
1306extern void __nouveau_fence_unref(void **obj);
1307extern void *__nouveau_fence_ref(void *obj);
1308
1309static inline bool nouveau_fence_signalled(struct nouveau_fence *obj)
1310{
1311	return __nouveau_fence_signalled(obj, NULL);
1312}
1313static inline int
1314nouveau_fence_wait(struct nouveau_fence *obj, bool lazy, bool intr)
1315{
1316	return __nouveau_fence_wait(obj, NULL, lazy, intr);
1317}
1318extern int nouveau_fence_sync(struct nouveau_fence *, struct nouveau_channel *);
1319static inline int nouveau_fence_flush(struct nouveau_fence *obj)
1320{
1321	return __nouveau_fence_flush(obj, NULL);
1322}
1323static inline void nouveau_fence_unref(struct nouveau_fence **obj)
1324{
1325	__nouveau_fence_unref((void **)obj);
1326}
1327static inline struct nouveau_fence *nouveau_fence_ref(struct nouveau_fence *obj)
1328{
1329	return __nouveau_fence_ref(obj);
1330}
1331
1332/* nouveau_gem.c */
1333extern int nouveau_gem_new(struct drm_device *, struct nouveau_channel *,
1334			   int size, int align, uint32_t flags,
1335			   uint32_t tile_mode, uint32_t tile_flags,
1336			   bool no_vm, bool mappable, struct nouveau_bo **);
1337extern int nouveau_gem_object_new(struct drm_gem_object *);
1338extern void nouveau_gem_object_del(struct drm_gem_object *);
1339extern int nouveau_gem_ioctl_new(struct drm_device *, void *,
1340				 struct drm_file *);
1341extern int nouveau_gem_ioctl_pushbuf(struct drm_device *, void *,
1342				     struct drm_file *);
1343extern int nouveau_gem_ioctl_cpu_prep(struct drm_device *, void *,
1344				      struct drm_file *);
1345extern int nouveau_gem_ioctl_cpu_fini(struct drm_device *, void *,
1346				      struct drm_file *);
1347extern int nouveau_gem_ioctl_info(struct drm_device *, void *,
1348				  struct drm_file *);
1349
1350/* nouveau_display.c */
1351int nouveau_vblank_enable(struct drm_device *dev, int crtc);
1352void nouveau_vblank_disable(struct drm_device *dev, int crtc);
1353int nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
1354			   struct drm_pending_vblank_event *event);
1355int nouveau_finish_page_flip(struct nouveau_channel *,
1356			     struct nouveau_page_flip_state *);
1357
1358/* nv10_gpio.c */
1359int nv10_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
1360int nv10_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
1361
1362/* nv50_gpio.c */
1363int nv50_gpio_init(struct drm_device *dev);
1364void nv50_gpio_fini(struct drm_device *dev);
1365int nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
1366int nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
1367void nv50_gpio_irq_enable(struct drm_device *, enum dcb_gpio_tag, bool on);
1368
1369/* nv50_calc. */
1370int nv50_calc_pll(struct drm_device *, struct pll_lims *, int clk,
1371		  int *N1, int *M1, int *N2, int *M2, int *P);
1372int nv50_calc_pll2(struct drm_device *, struct pll_lims *,
1373		   int clk, int *N, int *fN, int *M, int *P);
1374
1375#ifndef ioread32_native
1376#ifdef __BIG_ENDIAN
1377#define ioread16_native ioread16be
1378#define iowrite16_native iowrite16be
1379#define ioread32_native  ioread32be
1380#define iowrite32_native iowrite32be
1381#else /* def __BIG_ENDIAN */
1382#define ioread16_native ioread16
1383#define iowrite16_native iowrite16
1384#define ioread32_native  ioread32
1385#define iowrite32_native iowrite32
1386#endif /* def __BIG_ENDIAN else */
1387#endif /* !ioread32_native */
1388
1389/* channel control reg access */
1390static inline u32 nvchan_rd32(struct nouveau_channel *chan, unsigned reg)
1391{
1392	return ioread32_native(chan->user + reg);
1393}
1394
1395static inline void nvchan_wr32(struct nouveau_channel *chan,
1396							unsigned reg, u32 val)
1397{
1398	iowrite32_native(val, chan->user + reg);
1399}
1400
1401/* register access */
1402static inline u32 nv_rd32(struct drm_device *dev, unsigned reg)
1403{
1404	struct drm_nouveau_private *dev_priv = dev->dev_private;
1405	return ioread32_native(dev_priv->mmio + reg);
1406}
1407
1408static inline void nv_wr32(struct drm_device *dev, unsigned reg, u32 val)
1409{
1410	struct drm_nouveau_private *dev_priv = dev->dev_private;
1411	iowrite32_native(val, dev_priv->mmio + reg);
1412}
1413
1414static inline u32 nv_mask(struct drm_device *dev, u32 reg, u32 mask, u32 val)
1415{
1416	u32 tmp = nv_rd32(dev, reg);
1417	nv_wr32(dev, reg, (tmp & ~mask) | val);
1418	return tmp;
1419}
1420
1421static inline u8 nv_rd08(struct drm_device *dev, unsigned reg)
1422{
1423	struct drm_nouveau_private *dev_priv = dev->dev_private;
1424	return ioread8(dev_priv->mmio + reg);
1425}
1426
1427static inline void nv_wr08(struct drm_device *dev, unsigned reg, u8 val)
1428{
1429	struct drm_nouveau_private *dev_priv = dev->dev_private;
1430	iowrite8(val, dev_priv->mmio + reg);
1431}
1432
1433#define nv_wait(dev, reg, mask, val) \
1434	nouveau_wait_until(dev, 2000000000ULL, (reg), (mask), (val))
1435
1436/* PRAMIN access */
1437static inline u32 nv_ri32(struct drm_device *dev, unsigned offset)
1438{
1439	struct drm_nouveau_private *dev_priv = dev->dev_private;
1440	return ioread32_native(dev_priv->ramin + offset);
1441}
1442
1443static inline void nv_wi32(struct drm_device *dev, unsigned offset, u32 val)
1444{
1445	struct drm_nouveau_private *dev_priv = dev->dev_private;
1446	iowrite32_native(val, dev_priv->ramin + offset);
1447}
1448
1449/* object access */
1450extern u32 nv_ro32(struct nouveau_gpuobj *, u32 offset);
1451extern void nv_wo32(struct nouveau_gpuobj *, u32 offset, u32 val);
1452
1453/*
1454 * Logging
1455 * Argument d is (struct drm_device *).
1456 */
1457#define NV_PRINTK(level, d, fmt, arg...) \
1458	printk(level "[" DRM_NAME "] " DRIVER_NAME " %s: " fmt, \
1459					pci_name(d->pdev), ##arg)
1460#ifndef NV_DEBUG_NOTRACE
1461#define NV_DEBUG(d, fmt, arg...) do {                                          \
1462	if (drm_debug & DRM_UT_DRIVER) {                                       \
1463		NV_PRINTK(KERN_DEBUG, d, "%s:%d - " fmt, __func__,             \
1464			  __LINE__, ##arg);                                    \
1465	}                                                                      \
1466} while (0)
1467#define NV_DEBUG_KMS(d, fmt, arg...) do {                                      \
1468	if (drm_debug & DRM_UT_KMS) {                                          \
1469		NV_PRINTK(KERN_DEBUG, d, "%s:%d - " fmt, __func__,             \
1470			  __LINE__, ##arg);                                    \
1471	}                                                                      \
1472} while (0)
1473#else
1474#define NV_DEBUG(d, fmt, arg...) do {                                          \
1475	if (drm_debug & DRM_UT_DRIVER)                                         \
1476		NV_PRINTK(KERN_DEBUG, d, fmt, ##arg);                          \
1477} while (0)
1478#define NV_DEBUG_KMS(d, fmt, arg...) do {                                      \
1479	if (drm_debug & DRM_UT_KMS)                                            \
1480		NV_PRINTK(KERN_DEBUG, d, fmt, ##arg);                          \
1481} while (0)
1482#endif
1483#define NV_ERROR(d, fmt, arg...) NV_PRINTK(KERN_ERR, d, fmt, ##arg)
1484#define NV_INFO(d, fmt, arg...) NV_PRINTK(KERN_INFO, d, fmt, ##arg)
1485#define NV_TRACEWARN(d, fmt, arg...) NV_PRINTK(KERN_NOTICE, d, fmt, ##arg)
1486#define NV_TRACE(d, fmt, arg...) NV_PRINTK(KERN_INFO, d, fmt, ##arg)
1487#define NV_WARN(d, fmt, arg...) NV_PRINTK(KERN_WARNING, d, fmt, ##arg)
1488
1489/* nouveau_reg_debug bitmask */
1490enum {
1491	NOUVEAU_REG_DEBUG_MC             = 0x1,
1492	NOUVEAU_REG_DEBUG_VIDEO          = 0x2,
1493	NOUVEAU_REG_DEBUG_FB             = 0x4,
1494	NOUVEAU_REG_DEBUG_EXTDEV         = 0x8,
1495	NOUVEAU_REG_DEBUG_CRTC           = 0x10,
1496	NOUVEAU_REG_DEBUG_RAMDAC         = 0x20,
1497	NOUVEAU_REG_DEBUG_VGACRTC        = 0x40,
1498	NOUVEAU_REG_DEBUG_RMVIO          = 0x80,
1499	NOUVEAU_REG_DEBUG_VGAATTR        = 0x100,
1500	NOUVEAU_REG_DEBUG_EVO            = 0x200,
1501};
1502
1503#define NV_REG_DEBUG(type, dev, fmt, arg...) do { \
1504	if (nouveau_reg_debug & NOUVEAU_REG_DEBUG_##type) \
1505		NV_PRINTK(KERN_DEBUG, dev, "%s: " fmt, __func__, ##arg); \
1506} while (0)
1507
1508static inline bool
1509nv_two_heads(struct drm_device *dev)
1510{
1511	struct drm_nouveau_private *dev_priv = dev->dev_private;
1512	const int impl = dev->pci_device & 0x0ff0;
1513
1514	if (dev_priv->card_type >= NV_10 && impl != 0x0100 &&
1515	    impl != 0x0150 && impl != 0x01a0 && impl != 0x0200)
1516		return true;
1517
1518	return false;
1519}
1520
1521static inline bool
1522nv_gf4_disp_arch(struct drm_device *dev)
1523{
1524	return nv_two_heads(dev) && (dev->pci_device & 0x0ff0) != 0x0110;
1525}
1526
1527static inline bool
1528nv_two_reg_pll(struct drm_device *dev)
1529{
1530	struct drm_nouveau_private *dev_priv = dev->dev_private;
1531	const int impl = dev->pci_device & 0x0ff0;
1532
1533	if (impl == 0x0310 || impl == 0x0340 || dev_priv->card_type >= NV_40)
1534		return true;
1535	return false;
1536}
1537
1538static inline bool
1539nv_match_device(struct drm_device *dev, unsigned device,
1540		unsigned sub_vendor, unsigned sub_device)
1541{
1542	return dev->pdev->device == device &&
1543		dev->pdev->subsystem_vendor == sub_vendor &&
1544		dev->pdev->subsystem_device == sub_device;
1545}
1546
1547#define NV_SW                                                        0x0000506e
1548#define NV_SW_DMA_SEMAPHORE                                          0x00000060
1549#define NV_SW_SEMAPHORE_OFFSET                                       0x00000064
1550#define NV_SW_SEMAPHORE_ACQUIRE                                      0x00000068
1551#define NV_SW_SEMAPHORE_RELEASE                                      0x0000006c
1552#define NV_SW_YIELD                                                  0x00000080
1553#define NV_SW_DMA_VBLSEM                                             0x0000018c
1554#define NV_SW_VBLSEM_OFFSET                                          0x00000400
1555#define NV_SW_VBLSEM_RELEASE_VALUE                                   0x00000404
1556#define NV_SW_VBLSEM_RELEASE                                         0x00000408
1557#define NV_SW_PAGE_FLIP                                              0x00000500
1558
1559#endif /* __NOUVEAU_DRV_H__ */
1560