nouveau_drv.h revision f8522fc80f2e0392fc44b069f61721bd25907270
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"
57#include "nouveau_util.h"
58
59struct nouveau_grctx;
60struct nouveau_mem;
61#include "nouveau_vm.h"
62
63#define MAX_NUM_DCB_ENTRIES 16
64
65#define NOUVEAU_MAX_CHANNEL_NR 128
66#define NOUVEAU_MAX_TILE_NR 15
67
68struct nouveau_mem {
69	struct drm_device *dev;
70
71	struct nouveau_vma bar_vma;
72	struct nouveau_vma tmp_vma;
73	u8  page_shift;
74
75	struct drm_mm_node *tag;
76	struct list_head regions;
77	dma_addr_t *pages;
78	u32 memtype;
79	u64 offset;
80	u64 size;
81};
82
83struct nouveau_tile_reg {
84	bool used;
85	uint32_t addr;
86	uint32_t limit;
87	uint32_t pitch;
88	uint32_t zcomp;
89	struct drm_mm_node *tag_mem;
90	struct nouveau_fence *fence;
91};
92
93struct nouveau_bo {
94	struct ttm_buffer_object bo;
95	struct ttm_placement placement;
96	u32 valid_domains;
97	u32 placements[3];
98	u32 busy_placements[3];
99	struct ttm_bo_kmap_obj kmap;
100	struct list_head head;
101
102	/* protected by ttm_bo_reserve() */
103	struct drm_file *reserved_by;
104	struct list_head entry;
105	int pbbo_index;
106	bool validate_mapped;
107
108	struct nouveau_channel *channel;
109
110	struct nouveau_vma vma;
111
112	uint32_t tile_mode;
113	uint32_t tile_flags;
114	struct nouveau_tile_reg *tile;
115
116	struct drm_gem_object *gem;
117	int pin_refcnt;
118};
119
120#define nouveau_bo_tile_layout(nvbo)				\
121	((nvbo)->tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK)
122
123static inline struct nouveau_bo *
124nouveau_bo(struct ttm_buffer_object *bo)
125{
126	return container_of(bo, struct nouveau_bo, bo);
127}
128
129static inline struct nouveau_bo *
130nouveau_gem_object(struct drm_gem_object *gem)
131{
132	return gem ? gem->driver_private : NULL;
133}
134
135/* TODO: submit equivalent to TTM generic API upstream? */
136static inline void __iomem *
137nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
138{
139	bool is_iomem;
140	void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
141						&nvbo->kmap, &is_iomem);
142	WARN_ON_ONCE(ioptr && !is_iomem);
143	return ioptr;
144}
145
146enum nouveau_flags {
147	NV_NFORCE   = 0x10000000,
148	NV_NFORCE2  = 0x20000000
149};
150
151#define NVOBJ_ENGINE_SW		0
152#define NVOBJ_ENGINE_GR		1
153#define NVOBJ_ENGINE_CRYPT	2
154#define NVOBJ_ENGINE_COPY0	3
155#define NVOBJ_ENGINE_COPY1	4
156#define NVOBJ_ENGINE_MPEG	5
157#define NVOBJ_ENGINE_DISPLAY	15
158#define NVOBJ_ENGINE_NR		16
159
160#define NVOBJ_FLAG_DONT_MAP             (1 << 0)
161#define NVOBJ_FLAG_ZERO_ALLOC		(1 << 1)
162#define NVOBJ_FLAG_ZERO_FREE		(1 << 2)
163#define NVOBJ_FLAG_VM			(1 << 3)
164#define NVOBJ_FLAG_VM_USER		(1 << 4)
165
166#define NVOBJ_CINST_GLOBAL	0xdeadbeef
167
168struct nouveau_gpuobj {
169	struct drm_device *dev;
170	struct kref refcount;
171	struct list_head list;
172
173	void *node;
174	u32 *suspend;
175
176	uint32_t flags;
177
178	u32 size;
179	u32 pinst;	/* PRAMIN BAR offset */
180	u32 cinst;	/* Channel offset */
181	u64 vinst;	/* VRAM address */
182	u64 linst;	/* VM address */
183
184	uint32_t engine;
185	uint32_t class;
186
187	void (*dtor)(struct drm_device *, struct nouveau_gpuobj *);
188	void *priv;
189};
190
191struct nouveau_page_flip_state {
192	struct list_head head;
193	struct drm_pending_vblank_event *event;
194	int crtc, bpp, pitch, x, y;
195	uint64_t offset;
196};
197
198enum nouveau_channel_mutex_class {
199	NOUVEAU_UCHANNEL_MUTEX,
200	NOUVEAU_KCHANNEL_MUTEX
201};
202
203struct nouveau_channel {
204	struct drm_device *dev;
205	int id;
206
207	/* references to the channel data structure */
208	struct kref ref;
209	/* users of the hardware channel resources, the hardware
210	 * context will be kicked off when it reaches zero. */
211	atomic_t users;
212	struct mutex mutex;
213
214	/* owner of this fifo */
215	struct drm_file *file_priv;
216	/* mapping of the fifo itself */
217	struct drm_local_map *map;
218
219	/* mapping of the regs controlling the fifo */
220	void __iomem *user;
221	uint32_t user_get;
222	uint32_t user_put;
223
224	/* Fencing */
225	struct {
226		/* lock protects the pending list only */
227		spinlock_t lock;
228		struct list_head pending;
229		uint32_t sequence;
230		uint32_t sequence_ack;
231		atomic_t last_sequence_irq;
232	} fence;
233
234	/* DMA push buffer */
235	struct nouveau_gpuobj *pushbuf;
236	struct nouveau_bo     *pushbuf_bo;
237	uint32_t               pushbuf_base;
238
239	/* Notifier memory */
240	struct nouveau_bo *notifier_bo;
241	struct drm_mm notifier_heap;
242
243	/* PFIFO context */
244	struct nouveau_gpuobj *ramfc;
245	struct nouveau_gpuobj *cache;
246	void *fifo_priv;
247
248	/* Execution engine contexts */
249	void *engctx[NVOBJ_ENGINE_NR];
250
251	/* NV50 VM */
252	struct nouveau_vm     *vm;
253	struct nouveau_gpuobj *vm_pd;
254
255	/* Objects */
256	struct nouveau_gpuobj *ramin; /* Private instmem */
257	struct drm_mm          ramin_heap; /* Private PRAMIN heap */
258	struct nouveau_ramht  *ramht; /* Hash table */
259
260	/* GPU object info for stuff used in-kernel (mm_enabled) */
261	uint32_t m2mf_ntfy;
262	uint32_t vram_handle;
263	uint32_t gart_handle;
264	bool accel_done;
265
266	/* Push buffer state (only for drm's channel on !mm_enabled) */
267	struct {
268		int max;
269		int free;
270		int cur;
271		int put;
272		/* access via pushbuf_bo */
273
274		int ib_base;
275		int ib_max;
276		int ib_free;
277		int ib_put;
278	} dma;
279
280	uint32_t sw_subchannel[8];
281
282	struct {
283		struct nouveau_gpuobj *vblsem;
284		uint32_t vblsem_head;
285		uint32_t vblsem_offset;
286		uint32_t vblsem_rval;
287		struct list_head vbl_wait;
288		struct list_head flip;
289	} nvsw;
290
291	struct {
292		bool active;
293		char name[32];
294		struct drm_info_list info;
295	} debugfs;
296};
297
298struct nouveau_exec_engine {
299	void (*destroy)(struct drm_device *, int engine);
300	int  (*init)(struct drm_device *, int engine);
301	int  (*fini)(struct drm_device *, int engine);
302	int  (*context_new)(struct nouveau_channel *, int engine);
303	void (*context_del)(struct nouveau_channel *, int engine);
304	int  (*object_new)(struct nouveau_channel *, int engine,
305			   u32 handle, u16 class);
306	void (*set_tile_region)(struct drm_device *dev, int i);
307	void (*tlb_flush)(struct drm_device *, int engine);
308};
309
310struct nouveau_instmem_engine {
311	void	*priv;
312
313	int	(*init)(struct drm_device *dev);
314	void	(*takedown)(struct drm_device *dev);
315	int	(*suspend)(struct drm_device *dev);
316	void	(*resume)(struct drm_device *dev);
317
318	int	(*get)(struct nouveau_gpuobj *, u32 size, u32 align);
319	void	(*put)(struct nouveau_gpuobj *);
320	int	(*map)(struct nouveau_gpuobj *);
321	void	(*unmap)(struct nouveau_gpuobj *);
322
323	void	(*flush)(struct drm_device *);
324};
325
326struct nouveau_mc_engine {
327	int  (*init)(struct drm_device *dev);
328	void (*takedown)(struct drm_device *dev);
329};
330
331struct nouveau_timer_engine {
332	int      (*init)(struct drm_device *dev);
333	void     (*takedown)(struct drm_device *dev);
334	uint64_t (*read)(struct drm_device *dev);
335};
336
337struct nouveau_fb_engine {
338	int num_tiles;
339	struct drm_mm tag_heap;
340	void *priv;
341
342	int  (*init)(struct drm_device *dev);
343	void (*takedown)(struct drm_device *dev);
344
345	void (*init_tile_region)(struct drm_device *dev, int i,
346				 uint32_t addr, uint32_t size,
347				 uint32_t pitch, uint32_t flags);
348	void (*set_tile_region)(struct drm_device *dev, int i);
349	void (*free_tile_region)(struct drm_device *dev, int i);
350};
351
352struct nouveau_fifo_engine {
353	void *priv;
354	int  channels;
355
356	struct nouveau_gpuobj *playlist[2];
357	int cur_playlist;
358
359	int  (*init)(struct drm_device *);
360	void (*takedown)(struct drm_device *);
361
362	void (*disable)(struct drm_device *);
363	void (*enable)(struct drm_device *);
364	bool (*reassign)(struct drm_device *, bool enable);
365	bool (*cache_pull)(struct drm_device *dev, bool enable);
366
367	int  (*channel_id)(struct drm_device *);
368
369	int  (*create_context)(struct nouveau_channel *);
370	void (*destroy_context)(struct nouveau_channel *);
371	int  (*load_context)(struct nouveau_channel *);
372	int  (*unload_context)(struct drm_device *);
373	void (*tlb_flush)(struct drm_device *dev);
374};
375
376struct nouveau_display_engine {
377	void *priv;
378	int (*early_init)(struct drm_device *);
379	void (*late_takedown)(struct drm_device *);
380	int (*create)(struct drm_device *);
381	int (*init)(struct drm_device *);
382	void (*destroy)(struct drm_device *);
383};
384
385struct nouveau_gpio_engine {
386	void *priv;
387
388	int  (*init)(struct drm_device *);
389	void (*takedown)(struct drm_device *);
390
391	int  (*get)(struct drm_device *, enum dcb_gpio_tag);
392	int  (*set)(struct drm_device *, enum dcb_gpio_tag, int state);
393
394	int  (*irq_register)(struct drm_device *, enum dcb_gpio_tag,
395			     void (*)(void *, int), void *);
396	void (*irq_unregister)(struct drm_device *, enum dcb_gpio_tag,
397			       void (*)(void *, int), void *);
398	bool (*irq_enable)(struct drm_device *, enum dcb_gpio_tag, bool on);
399};
400
401struct nouveau_pm_voltage_level {
402	u8 voltage;
403	u8 vid;
404};
405
406struct nouveau_pm_voltage {
407	bool supported;
408	u8 vid_mask;
409
410	struct nouveau_pm_voltage_level *level;
411	int nr_level;
412};
413
414struct nouveau_pm_memtiming {
415	int id;
416	u32 reg_100220;
417	u32 reg_100224;
418	u32 reg_100228;
419	u32 reg_10022c;
420	u32 reg_100230;
421	u32 reg_100234;
422	u32 reg_100238;
423	u32 reg_10023c;
424	u32 reg_100240;
425};
426
427#define NOUVEAU_PM_MAX_LEVEL 8
428struct nouveau_pm_level {
429	struct device_attribute dev_attr;
430	char name[32];
431	int id;
432
433	u32 core;
434	u32 memory;
435	u32 shader;
436	u32 unk05;
437	u32 unk0a;
438
439	u8 voltage;
440	u8 fanspeed;
441
442	u16 memscript;
443	struct nouveau_pm_memtiming *timing;
444};
445
446struct nouveau_pm_temp_sensor_constants {
447	u16 offset_constant;
448	s16 offset_mult;
449	u16 offset_div;
450	u16 slope_mult;
451	u16 slope_div;
452};
453
454struct nouveau_pm_threshold_temp {
455	s16 critical;
456	s16 down_clock;
457	s16 fan_boost;
458};
459
460struct nouveau_pm_memtimings {
461	bool supported;
462	struct nouveau_pm_memtiming *timing;
463	int nr_timing;
464};
465
466struct nouveau_pm_engine {
467	struct nouveau_pm_voltage voltage;
468	struct nouveau_pm_level perflvl[NOUVEAU_PM_MAX_LEVEL];
469	int nr_perflvl;
470	struct nouveau_pm_memtimings memtimings;
471	struct nouveau_pm_temp_sensor_constants sensor_constants;
472	struct nouveau_pm_threshold_temp threshold_temp;
473
474	struct nouveau_pm_level boot;
475	struct nouveau_pm_level *cur;
476
477	struct device *hwmon;
478	struct notifier_block acpi_nb;
479
480	int (*clock_get)(struct drm_device *, u32 id);
481	void *(*clock_pre)(struct drm_device *, struct nouveau_pm_level *,
482			   u32 id, int khz);
483	void (*clock_set)(struct drm_device *, void *);
484	int (*voltage_get)(struct drm_device *);
485	int (*voltage_set)(struct drm_device *, int voltage);
486	int (*fanspeed_get)(struct drm_device *);
487	int (*fanspeed_set)(struct drm_device *, int fanspeed);
488	int (*temp_get)(struct drm_device *);
489};
490
491struct nouveau_vram_engine {
492	int  (*init)(struct drm_device *);
493	int  (*get)(struct drm_device *, u64, u32 align, u32 size_nc,
494		    u32 type, struct nouveau_mem **);
495	void (*put)(struct drm_device *, struct nouveau_mem **);
496
497	bool (*flags_valid)(struct drm_device *, u32 tile_flags);
498};
499
500struct nouveau_engine {
501	struct nouveau_instmem_engine instmem;
502	struct nouveau_mc_engine      mc;
503	struct nouveau_timer_engine   timer;
504	struct nouveau_fb_engine      fb;
505	struct nouveau_fifo_engine    fifo;
506	struct nouveau_display_engine display;
507	struct nouveau_gpio_engine    gpio;
508	struct nouveau_pm_engine      pm;
509	struct nouveau_vram_engine    vram;
510};
511
512struct nouveau_pll_vals {
513	union {
514		struct {
515#ifdef __BIG_ENDIAN
516			uint8_t N1, M1, N2, M2;
517#else
518			uint8_t M1, N1, M2, N2;
519#endif
520		};
521		struct {
522			uint16_t NM1, NM2;
523		} __attribute__((packed));
524	};
525	int log2P;
526
527	int refclk;
528};
529
530enum nv04_fp_display_regs {
531	FP_DISPLAY_END,
532	FP_TOTAL,
533	FP_CRTC,
534	FP_SYNC_START,
535	FP_SYNC_END,
536	FP_VALID_START,
537	FP_VALID_END
538};
539
540struct nv04_crtc_reg {
541	unsigned char MiscOutReg;
542	uint8_t CRTC[0xa0];
543	uint8_t CR58[0x10];
544	uint8_t Sequencer[5];
545	uint8_t Graphics[9];
546	uint8_t Attribute[21];
547	unsigned char DAC[768];
548
549	/* PCRTC regs */
550	uint32_t fb_start;
551	uint32_t crtc_cfg;
552	uint32_t cursor_cfg;
553	uint32_t gpio_ext;
554	uint32_t crtc_830;
555	uint32_t crtc_834;
556	uint32_t crtc_850;
557	uint32_t crtc_eng_ctrl;
558
559	/* PRAMDAC regs */
560	uint32_t nv10_cursync;
561	struct nouveau_pll_vals pllvals;
562	uint32_t ramdac_gen_ctrl;
563	uint32_t ramdac_630;
564	uint32_t ramdac_634;
565	uint32_t tv_setup;
566	uint32_t tv_vtotal;
567	uint32_t tv_vskew;
568	uint32_t tv_vsync_delay;
569	uint32_t tv_htotal;
570	uint32_t tv_hskew;
571	uint32_t tv_hsync_delay;
572	uint32_t tv_hsync_delay2;
573	uint32_t fp_horiz_regs[7];
574	uint32_t fp_vert_regs[7];
575	uint32_t dither;
576	uint32_t fp_control;
577	uint32_t dither_regs[6];
578	uint32_t fp_debug_0;
579	uint32_t fp_debug_1;
580	uint32_t fp_debug_2;
581	uint32_t fp_margin_color;
582	uint32_t ramdac_8c0;
583	uint32_t ramdac_a20;
584	uint32_t ramdac_a24;
585	uint32_t ramdac_a34;
586	uint32_t ctv_regs[38];
587};
588
589struct nv04_output_reg {
590	uint32_t output;
591	int head;
592};
593
594struct nv04_mode_state {
595	struct nv04_crtc_reg crtc_reg[2];
596	uint32_t pllsel;
597	uint32_t sel_clk;
598};
599
600enum nouveau_card_type {
601	NV_04      = 0x00,
602	NV_10      = 0x10,
603	NV_20      = 0x20,
604	NV_30      = 0x30,
605	NV_40      = 0x40,
606	NV_50      = 0x50,
607	NV_C0      = 0xc0,
608};
609
610struct drm_nouveau_private {
611	struct drm_device *dev;
612	bool noaccel;
613
614	/* the card type, takes NV_* as values */
615	enum nouveau_card_type card_type;
616	/* exact chipset, derived from NV_PMC_BOOT_0 */
617	int chipset;
618	int stepping;
619	int flags;
620
621	void __iomem *mmio;
622
623	spinlock_t ramin_lock;
624	void __iomem *ramin;
625	u32 ramin_size;
626	u32 ramin_base;
627	bool ramin_available;
628	struct drm_mm ramin_heap;
629	struct nouveau_exec_engine *eng[NVOBJ_ENGINE_NR];
630	struct list_head gpuobj_list;
631	struct list_head classes;
632
633	struct nouveau_bo *vga_ram;
634
635	/* interrupt handling */
636	void (*irq_handler[32])(struct drm_device *);
637	bool msi_enabled;
638
639	struct list_head vbl_waiting;
640
641	struct {
642		struct drm_global_reference mem_global_ref;
643		struct ttm_bo_global_ref bo_global_ref;
644		struct ttm_bo_device bdev;
645		atomic_t validate_sequence;
646	} ttm;
647
648	struct {
649		spinlock_t lock;
650		struct drm_mm heap;
651		struct nouveau_bo *bo;
652	} fence;
653
654	struct {
655		spinlock_t lock;
656		struct nouveau_channel *ptr[NOUVEAU_MAX_CHANNEL_NR];
657	} channels;
658
659	struct nouveau_engine engine;
660	struct nouveau_channel *channel;
661
662	/* For PFIFO and PGRAPH. */
663	spinlock_t context_switch_lock;
664
665	/* VM/PRAMIN flush, legacy PRAMIN aperture */
666	spinlock_t vm_lock;
667
668	/* RAMIN configuration, RAMFC, RAMHT and RAMRO offsets */
669	struct nouveau_ramht  *ramht;
670	struct nouveau_gpuobj *ramfc;
671	struct nouveau_gpuobj *ramro;
672
673	uint32_t ramin_rsvd_vram;
674
675	struct {
676		enum {
677			NOUVEAU_GART_NONE = 0,
678			NOUVEAU_GART_AGP,	/* AGP */
679			NOUVEAU_GART_PDMA,	/* paged dma object */
680			NOUVEAU_GART_HW		/* on-chip gart/vm */
681		} type;
682		uint64_t aper_base;
683		uint64_t aper_size;
684		uint64_t aper_free;
685
686		struct ttm_backend_func *func;
687
688		struct {
689			struct page *page;
690			dma_addr_t   addr;
691		} dummy;
692
693		struct nouveau_gpuobj *sg_ctxdma;
694	} gart_info;
695
696	/* nv10-nv40 tiling regions */
697	struct {
698		struct nouveau_tile_reg reg[NOUVEAU_MAX_TILE_NR];
699		spinlock_t lock;
700	} tile;
701
702	/* VRAM/fb configuration */
703	uint64_t vram_size;
704	uint64_t vram_sys_base;
705	u32 vram_rblock_size;
706
707	uint64_t fb_phys;
708	uint64_t fb_available_size;
709	uint64_t fb_mappable_pages;
710	uint64_t fb_aper_free;
711	int fb_mtrr;
712
713	/* BAR control (NV50-) */
714	struct nouveau_vm *bar1_vm;
715	struct nouveau_vm *bar3_vm;
716
717	/* G8x/G9x virtual address space */
718	struct nouveau_vm *chan_vm;
719
720	struct nvbios vbios;
721
722	struct nv04_mode_state mode_reg;
723	struct nv04_mode_state saved_reg;
724	uint32_t saved_vga_font[4][16384];
725	uint32_t crtc_owner;
726	uint32_t dac_users[4];
727
728	struct backlight_device *backlight;
729
730	struct {
731		struct dentry *channel_root;
732	} debugfs;
733
734	struct nouveau_fbdev *nfbdev;
735	struct apertures_struct *apertures;
736};
737
738static inline struct drm_nouveau_private *
739nouveau_private(struct drm_device *dev)
740{
741	return dev->dev_private;
742}
743
744static inline struct drm_nouveau_private *
745nouveau_bdev(struct ttm_bo_device *bd)
746{
747	return container_of(bd, struct drm_nouveau_private, ttm.bdev);
748}
749
750static inline int
751nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
752{
753	struct nouveau_bo *prev;
754
755	if (!pnvbo)
756		return -EINVAL;
757	prev = *pnvbo;
758
759	*pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
760	if (prev) {
761		struct ttm_buffer_object *bo = &prev->bo;
762
763		ttm_bo_unref(&bo);
764	}
765
766	return 0;
767}
768
769/* nouveau_drv.c */
770extern int nouveau_agpmode;
771extern int nouveau_duallink;
772extern int nouveau_uscript_lvds;
773extern int nouveau_uscript_tmds;
774extern int nouveau_vram_pushbuf;
775extern int nouveau_vram_notify;
776extern int nouveau_fbpercrtc;
777extern int nouveau_tv_disable;
778extern char *nouveau_tv_norm;
779extern int nouveau_reg_debug;
780extern char *nouveau_vbios;
781extern int nouveau_ignorelid;
782extern int nouveau_nofbaccel;
783extern int nouveau_noaccel;
784extern int nouveau_force_post;
785extern int nouveau_override_conntype;
786extern char *nouveau_perflvl;
787extern int nouveau_perflvl_wr;
788extern int nouveau_msi;
789
790extern int nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state);
791extern int nouveau_pci_resume(struct pci_dev *pdev);
792
793/* nouveau_state.c */
794extern void nouveau_preclose(struct drm_device *dev, struct drm_file *);
795extern int  nouveau_load(struct drm_device *, unsigned long flags);
796extern int  nouveau_firstopen(struct drm_device *);
797extern void nouveau_lastclose(struct drm_device *);
798extern int  nouveau_unload(struct drm_device *);
799extern int  nouveau_ioctl_getparam(struct drm_device *, void *data,
800				   struct drm_file *);
801extern int  nouveau_ioctl_setparam(struct drm_device *, void *data,
802				   struct drm_file *);
803extern bool nouveau_wait_eq(struct drm_device *, uint64_t timeout,
804			    uint32_t reg, uint32_t mask, uint32_t val);
805extern bool nouveau_wait_ne(struct drm_device *, uint64_t timeout,
806			    uint32_t reg, uint32_t mask, uint32_t val);
807extern bool nouveau_wait_for_idle(struct drm_device *);
808extern int  nouveau_card_init(struct drm_device *);
809
810/* nouveau_mem.c */
811extern int  nouveau_mem_vram_init(struct drm_device *);
812extern void nouveau_mem_vram_fini(struct drm_device *);
813extern int  nouveau_mem_gart_init(struct drm_device *);
814extern void nouveau_mem_gart_fini(struct drm_device *);
815extern int  nouveau_mem_init_agp(struct drm_device *);
816extern int  nouveau_mem_reset_agp(struct drm_device *);
817extern void nouveau_mem_close(struct drm_device *);
818extern int  nouveau_mem_detect(struct drm_device *);
819extern bool nouveau_mem_flags_valid(struct drm_device *, u32 tile_flags);
820extern struct nouveau_tile_reg *nv10_mem_set_tiling(
821	struct drm_device *dev, uint32_t addr, uint32_t size,
822	uint32_t pitch, uint32_t flags);
823extern void nv10_mem_put_tile_region(struct drm_device *dev,
824				     struct nouveau_tile_reg *tile,
825				     struct nouveau_fence *fence);
826extern const struct ttm_mem_type_manager_func nouveau_vram_manager;
827extern const struct ttm_mem_type_manager_func nouveau_gart_manager;
828
829/* nouveau_notifier.c */
830extern int  nouveau_notifier_init_channel(struct nouveau_channel *);
831extern void nouveau_notifier_takedown_channel(struct nouveau_channel *);
832extern int  nouveau_notifier_alloc(struct nouveau_channel *, uint32_t handle,
833				   int cout, uint32_t start, uint32_t end,
834				   uint32_t *offset);
835extern int  nouveau_notifier_offset(struct nouveau_gpuobj *, uint32_t *);
836extern int  nouveau_ioctl_notifier_alloc(struct drm_device *, void *data,
837					 struct drm_file *);
838extern int  nouveau_ioctl_notifier_free(struct drm_device *, void *data,
839					struct drm_file *);
840
841/* nouveau_channel.c */
842extern struct drm_ioctl_desc nouveau_ioctls[];
843extern int nouveau_max_ioctl;
844extern void nouveau_channel_cleanup(struct drm_device *, struct drm_file *);
845extern int  nouveau_channel_alloc(struct drm_device *dev,
846				  struct nouveau_channel **chan,
847				  struct drm_file *file_priv,
848				  uint32_t fb_ctxdma, uint32_t tt_ctxdma);
849extern struct nouveau_channel *
850nouveau_channel_get_unlocked(struct nouveau_channel *);
851extern struct nouveau_channel *
852nouveau_channel_get(struct drm_device *, struct drm_file *, int id);
853extern void nouveau_channel_put_unlocked(struct nouveau_channel **);
854extern void nouveau_channel_put(struct nouveau_channel **);
855extern void nouveau_channel_ref(struct nouveau_channel *chan,
856				struct nouveau_channel **pchan);
857extern void nouveau_channel_idle(struct nouveau_channel *chan);
858
859/* nouveau_object.c */
860#define NVOBJ_ENGINE_ADD(d, e, p) do {                                         \
861	struct drm_nouveau_private *dev_priv = (d)->dev_private;               \
862	dev_priv->eng[NVOBJ_ENGINE_##e] = (p);                                 \
863} while (0)
864
865#define NVOBJ_ENGINE_DEL(d, e) do {                                            \
866	struct drm_nouveau_private *dev_priv = (d)->dev_private;               \
867	dev_priv->eng[NVOBJ_ENGINE_##e] = NULL;                                \
868} while (0)
869
870#define NVOBJ_CLASS(d, c, e) do {                                              \
871	int ret = nouveau_gpuobj_class_new((d), (c), NVOBJ_ENGINE_##e);        \
872	if (ret)                                                               \
873		return ret;                                                    \
874} while (0)
875
876#define NVOBJ_MTHD(d, c, m, e) do {                                            \
877	int ret = nouveau_gpuobj_mthd_new((d), (c), (m), (e));                 \
878	if (ret)                                                               \
879		return ret;                                                    \
880} while (0)
881
882extern int  nouveau_gpuobj_early_init(struct drm_device *);
883extern int  nouveau_gpuobj_init(struct drm_device *);
884extern void nouveau_gpuobj_takedown(struct drm_device *);
885extern int  nouveau_gpuobj_suspend(struct drm_device *dev);
886extern void nouveau_gpuobj_resume(struct drm_device *dev);
887extern int  nouveau_gpuobj_class_new(struct drm_device *, u32 class, u32 eng);
888extern int  nouveau_gpuobj_mthd_new(struct drm_device *, u32 class, u32 mthd,
889				    int (*exec)(struct nouveau_channel *,
890						u32 class, u32 mthd, u32 data));
891extern int  nouveau_gpuobj_mthd_call(struct nouveau_channel *, u32, u32, u32);
892extern int  nouveau_gpuobj_mthd_call2(struct drm_device *, int, u32, u32, u32);
893extern int nouveau_gpuobj_channel_init(struct nouveau_channel *,
894				       uint32_t vram_h, uint32_t tt_h);
895extern void nouveau_gpuobj_channel_takedown(struct nouveau_channel *);
896extern int nouveau_gpuobj_new(struct drm_device *, struct nouveau_channel *,
897			      uint32_t size, int align, uint32_t flags,
898			      struct nouveau_gpuobj **);
899extern void nouveau_gpuobj_ref(struct nouveau_gpuobj *,
900			       struct nouveau_gpuobj **);
901extern int nouveau_gpuobj_new_fake(struct drm_device *, u32 pinst, u64 vinst,
902				   u32 size, u32 flags,
903				   struct nouveau_gpuobj **);
904extern int nouveau_gpuobj_dma_new(struct nouveau_channel *, int class,
905				  uint64_t offset, uint64_t size, int access,
906				  int target, struct nouveau_gpuobj **);
907extern int nouveau_gpuobj_gr_new(struct nouveau_channel *, u32 handle, int class);
908extern int nv50_gpuobj_dma_new(struct nouveau_channel *, int class, u64 base,
909			       u64 size, int target, int access, u32 type,
910			       u32 comp, struct nouveau_gpuobj **pobj);
911extern void nv50_gpuobj_dma_init(struct nouveau_gpuobj *, u32 offset,
912				 int class, u64 base, u64 size, int target,
913				 int access, u32 type, u32 comp);
914extern int nouveau_ioctl_grobj_alloc(struct drm_device *, void *data,
915				     struct drm_file *);
916extern int nouveau_ioctl_gpuobj_free(struct drm_device *, void *data,
917				     struct drm_file *);
918
919/* nouveau_irq.c */
920extern int         nouveau_irq_init(struct drm_device *);
921extern void        nouveau_irq_fini(struct drm_device *);
922extern irqreturn_t nouveau_irq_handler(DRM_IRQ_ARGS);
923extern void        nouveau_irq_register(struct drm_device *, int status_bit,
924					void (*)(struct drm_device *));
925extern void        nouveau_irq_unregister(struct drm_device *, int status_bit);
926extern void        nouveau_irq_preinstall(struct drm_device *);
927extern int         nouveau_irq_postinstall(struct drm_device *);
928extern void        nouveau_irq_uninstall(struct drm_device *);
929
930/* nouveau_sgdma.c */
931extern int nouveau_sgdma_init(struct drm_device *);
932extern void nouveau_sgdma_takedown(struct drm_device *);
933extern uint32_t nouveau_sgdma_get_physical(struct drm_device *,
934					   uint32_t offset);
935extern struct ttm_backend *nouveau_sgdma_init_ttm(struct drm_device *);
936
937/* nouveau_debugfs.c */
938#if defined(CONFIG_DRM_NOUVEAU_DEBUG)
939extern int  nouveau_debugfs_init(struct drm_minor *);
940extern void nouveau_debugfs_takedown(struct drm_minor *);
941extern int  nouveau_debugfs_channel_init(struct nouveau_channel *);
942extern void nouveau_debugfs_channel_fini(struct nouveau_channel *);
943#else
944static inline int
945nouveau_debugfs_init(struct drm_minor *minor)
946{
947	return 0;
948}
949
950static inline void nouveau_debugfs_takedown(struct drm_minor *minor)
951{
952}
953
954static inline int
955nouveau_debugfs_channel_init(struct nouveau_channel *chan)
956{
957	return 0;
958}
959
960static inline void
961nouveau_debugfs_channel_fini(struct nouveau_channel *chan)
962{
963}
964#endif
965
966/* nouveau_dma.c */
967extern void nouveau_dma_pre_init(struct nouveau_channel *);
968extern int  nouveau_dma_init(struct nouveau_channel *);
969extern int  nouveau_dma_wait(struct nouveau_channel *, int slots, int size);
970
971/* nouveau_acpi.c */
972#define ROM_BIOS_PAGE 4096
973#if defined(CONFIG_ACPI)
974void nouveau_register_dsm_handler(void);
975void nouveau_unregister_dsm_handler(void);
976int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len);
977bool nouveau_acpi_rom_supported(struct pci_dev *pdev);
978int nouveau_acpi_edid(struct drm_device *, struct drm_connector *);
979#else
980static inline void nouveau_register_dsm_handler(void) {}
981static inline void nouveau_unregister_dsm_handler(void) {}
982static inline bool nouveau_acpi_rom_supported(struct pci_dev *pdev) { return false; }
983static inline int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len) { return -EINVAL; }
984static inline int nouveau_acpi_edid(struct drm_device *dev, struct drm_connector *connector) { return -EINVAL; }
985#endif
986
987/* nouveau_backlight.c */
988#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
989extern int nouveau_backlight_init(struct drm_connector *);
990extern void nouveau_backlight_exit(struct drm_connector *);
991#else
992static inline int nouveau_backlight_init(struct drm_connector *dev)
993{
994	return 0;
995}
996
997static inline void nouveau_backlight_exit(struct drm_connector *dev) { }
998#endif
999
1000/* nouveau_bios.c */
1001extern int nouveau_bios_init(struct drm_device *);
1002extern void nouveau_bios_takedown(struct drm_device *dev);
1003extern int nouveau_run_vbios_init(struct drm_device *);
1004extern void nouveau_bios_run_init_table(struct drm_device *, uint16_t table,
1005					struct dcb_entry *);
1006extern struct dcb_gpio_entry *nouveau_bios_gpio_entry(struct drm_device *,
1007						      enum dcb_gpio_tag);
1008extern struct dcb_connector_table_entry *
1009nouveau_bios_connector_entry(struct drm_device *, int index);
1010extern u32 get_pll_register(struct drm_device *, enum pll_types);
1011extern int get_pll_limits(struct drm_device *, uint32_t limit_match,
1012			  struct pll_lims *);
1013extern int nouveau_bios_run_display_table(struct drm_device *,
1014					  struct dcb_entry *,
1015					  uint32_t script, int pxclk);
1016extern void *nouveau_bios_dp_table(struct drm_device *, struct dcb_entry *,
1017				   int *length);
1018extern bool nouveau_bios_fp_mode(struct drm_device *, struct drm_display_mode *);
1019extern uint8_t *nouveau_bios_embedded_edid(struct drm_device *);
1020extern int nouveau_bios_parse_lvds_table(struct drm_device *, int pxclk,
1021					 bool *dl, bool *if_is_24bit);
1022extern int run_tmds_table(struct drm_device *, struct dcb_entry *,
1023			  int head, int pxclk);
1024extern int call_lvds_script(struct drm_device *, struct dcb_entry *, int head,
1025			    enum LVDS_script, int pxclk);
1026
1027/* nouveau_ttm.c */
1028int nouveau_ttm_global_init(struct drm_nouveau_private *);
1029void nouveau_ttm_global_release(struct drm_nouveau_private *);
1030int nouveau_ttm_mmap(struct file *, struct vm_area_struct *);
1031
1032/* nouveau_dp.c */
1033int nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
1034		     uint8_t *data, int data_nr);
1035bool nouveau_dp_detect(struct drm_encoder *);
1036bool nouveau_dp_link_train(struct drm_encoder *);
1037
1038/* nv04_fb.c */
1039extern int  nv04_fb_init(struct drm_device *);
1040extern void nv04_fb_takedown(struct drm_device *);
1041
1042/* nv10_fb.c */
1043extern int  nv10_fb_init(struct drm_device *);
1044extern void nv10_fb_takedown(struct drm_device *);
1045extern void nv10_fb_init_tile_region(struct drm_device *dev, int i,
1046				     uint32_t addr, uint32_t size,
1047				     uint32_t pitch, uint32_t flags);
1048extern void nv10_fb_set_tile_region(struct drm_device *dev, int i);
1049extern void nv10_fb_free_tile_region(struct drm_device *dev, int i);
1050
1051/* nv30_fb.c */
1052extern int  nv30_fb_init(struct drm_device *);
1053extern void nv30_fb_takedown(struct drm_device *);
1054extern void nv30_fb_init_tile_region(struct drm_device *dev, int i,
1055				     uint32_t addr, uint32_t size,
1056				     uint32_t pitch, uint32_t flags);
1057extern void nv30_fb_free_tile_region(struct drm_device *dev, int i);
1058
1059/* nv40_fb.c */
1060extern int  nv40_fb_init(struct drm_device *);
1061extern void nv40_fb_takedown(struct drm_device *);
1062extern void nv40_fb_set_tile_region(struct drm_device *dev, int i);
1063
1064/* nv50_fb.c */
1065extern int  nv50_fb_init(struct drm_device *);
1066extern void nv50_fb_takedown(struct drm_device *);
1067extern void nv50_fb_vm_trap(struct drm_device *, int display);
1068
1069/* nvc0_fb.c */
1070extern int  nvc0_fb_init(struct drm_device *);
1071extern void nvc0_fb_takedown(struct drm_device *);
1072
1073/* nv04_fifo.c */
1074extern int  nv04_fifo_init(struct drm_device *);
1075extern void nv04_fifo_fini(struct drm_device *);
1076extern void nv04_fifo_disable(struct drm_device *);
1077extern void nv04_fifo_enable(struct drm_device *);
1078extern bool nv04_fifo_reassign(struct drm_device *, bool);
1079extern bool nv04_fifo_cache_pull(struct drm_device *, bool);
1080extern int  nv04_fifo_channel_id(struct drm_device *);
1081extern int  nv04_fifo_create_context(struct nouveau_channel *);
1082extern void nv04_fifo_destroy_context(struct nouveau_channel *);
1083extern int  nv04_fifo_load_context(struct nouveau_channel *);
1084extern int  nv04_fifo_unload_context(struct drm_device *);
1085extern void nv04_fifo_isr(struct drm_device *);
1086
1087/* nv10_fifo.c */
1088extern int  nv10_fifo_init(struct drm_device *);
1089extern int  nv10_fifo_channel_id(struct drm_device *);
1090extern int  nv10_fifo_create_context(struct nouveau_channel *);
1091extern int  nv10_fifo_load_context(struct nouveau_channel *);
1092extern int  nv10_fifo_unload_context(struct drm_device *);
1093
1094/* nv40_fifo.c */
1095extern int  nv40_fifo_init(struct drm_device *);
1096extern int  nv40_fifo_create_context(struct nouveau_channel *);
1097extern int  nv40_fifo_load_context(struct nouveau_channel *);
1098extern int  nv40_fifo_unload_context(struct drm_device *);
1099
1100/* nv50_fifo.c */
1101extern int  nv50_fifo_init(struct drm_device *);
1102extern void nv50_fifo_takedown(struct drm_device *);
1103extern int  nv50_fifo_channel_id(struct drm_device *);
1104extern int  nv50_fifo_create_context(struct nouveau_channel *);
1105extern void nv50_fifo_destroy_context(struct nouveau_channel *);
1106extern int  nv50_fifo_load_context(struct nouveau_channel *);
1107extern int  nv50_fifo_unload_context(struct drm_device *);
1108extern void nv50_fifo_tlb_flush(struct drm_device *dev);
1109
1110/* nvc0_fifo.c */
1111extern int  nvc0_fifo_init(struct drm_device *);
1112extern void nvc0_fifo_takedown(struct drm_device *);
1113extern void nvc0_fifo_disable(struct drm_device *);
1114extern void nvc0_fifo_enable(struct drm_device *);
1115extern bool nvc0_fifo_reassign(struct drm_device *, bool);
1116extern bool nvc0_fifo_cache_pull(struct drm_device *, bool);
1117extern int  nvc0_fifo_channel_id(struct drm_device *);
1118extern int  nvc0_fifo_create_context(struct nouveau_channel *);
1119extern void nvc0_fifo_destroy_context(struct nouveau_channel *);
1120extern int  nvc0_fifo_load_context(struct nouveau_channel *);
1121extern int  nvc0_fifo_unload_context(struct drm_device *);
1122
1123/* nv04_graph.c */
1124extern int  nv04_graph_create(struct drm_device *);
1125extern void nv04_graph_fifo_access(struct drm_device *, bool);
1126extern int  nv04_graph_object_new(struct nouveau_channel *, int, u32, u16);
1127extern int  nv04_graph_mthd_page_flip(struct nouveau_channel *chan,
1128				      u32 class, u32 mthd, u32 data);
1129extern struct nouveau_bitfield nv04_graph_nsource[];
1130
1131/* nv10_graph.c */
1132extern int  nv10_graph_create(struct drm_device *);
1133extern struct nouveau_channel *nv10_graph_channel(struct drm_device *);
1134extern struct nouveau_bitfield nv10_graph_intr[];
1135extern struct nouveau_bitfield nv10_graph_nstatus[];
1136
1137/* nv20_graph.c */
1138extern int  nv20_graph_create(struct drm_device *);
1139
1140/* nv40_graph.c */
1141extern int  nv40_graph_create(struct drm_device *);
1142extern void nv40_grctx_init(struct nouveau_grctx *);
1143
1144/* nv50_graph.c */
1145extern int  nv50_graph_create(struct drm_device *);
1146extern int  nv50_grctx_init(struct nouveau_grctx *);
1147extern struct nouveau_enum nv50_data_error_names[];
1148extern int  nv50_graph_isr_chid(struct drm_device *dev, u64 inst);
1149
1150/* nvc0_graph.c */
1151extern int  nvc0_graph_create(struct drm_device *);
1152extern int  nvc0_graph_isr_chid(struct drm_device *dev, u64 inst);
1153
1154/* nv84_crypt.c */
1155extern int  nv84_crypt_create(struct drm_device *);
1156
1157/* nva3_copy.c */
1158extern int  nva3_copy_create(struct drm_device *dev);
1159
1160/* nvc0_copy.c */
1161extern int  nvc0_copy_create(struct drm_device *dev, int engine);
1162
1163/* nv40_mpeg.c */
1164extern int  nv40_mpeg_create(struct drm_device *dev);
1165
1166/* nv50_mpeg.c */
1167extern int  nv50_mpeg_create(struct drm_device *dev);
1168
1169/* nv04_instmem.c */
1170extern int  nv04_instmem_init(struct drm_device *);
1171extern void nv04_instmem_takedown(struct drm_device *);
1172extern int  nv04_instmem_suspend(struct drm_device *);
1173extern void nv04_instmem_resume(struct drm_device *);
1174extern int  nv04_instmem_get(struct nouveau_gpuobj *, u32 size, u32 align);
1175extern void nv04_instmem_put(struct nouveau_gpuobj *);
1176extern int  nv04_instmem_map(struct nouveau_gpuobj *);
1177extern void nv04_instmem_unmap(struct nouveau_gpuobj *);
1178extern void nv04_instmem_flush(struct drm_device *);
1179
1180/* nv50_instmem.c */
1181extern int  nv50_instmem_init(struct drm_device *);
1182extern void nv50_instmem_takedown(struct drm_device *);
1183extern int  nv50_instmem_suspend(struct drm_device *);
1184extern void nv50_instmem_resume(struct drm_device *);
1185extern int  nv50_instmem_get(struct nouveau_gpuobj *, u32 size, u32 align);
1186extern void nv50_instmem_put(struct nouveau_gpuobj *);
1187extern int  nv50_instmem_map(struct nouveau_gpuobj *);
1188extern void nv50_instmem_unmap(struct nouveau_gpuobj *);
1189extern void nv50_instmem_flush(struct drm_device *);
1190extern void nv84_instmem_flush(struct drm_device *);
1191
1192/* nvc0_instmem.c */
1193extern int  nvc0_instmem_init(struct drm_device *);
1194extern void nvc0_instmem_takedown(struct drm_device *);
1195extern int  nvc0_instmem_suspend(struct drm_device *);
1196extern void nvc0_instmem_resume(struct drm_device *);
1197
1198/* nv04_mc.c */
1199extern int  nv04_mc_init(struct drm_device *);
1200extern void nv04_mc_takedown(struct drm_device *);
1201
1202/* nv40_mc.c */
1203extern int  nv40_mc_init(struct drm_device *);
1204extern void nv40_mc_takedown(struct drm_device *);
1205
1206/* nv50_mc.c */
1207extern int  nv50_mc_init(struct drm_device *);
1208extern void nv50_mc_takedown(struct drm_device *);
1209
1210/* nv04_timer.c */
1211extern int  nv04_timer_init(struct drm_device *);
1212extern uint64_t nv04_timer_read(struct drm_device *);
1213extern void nv04_timer_takedown(struct drm_device *);
1214
1215extern long nouveau_compat_ioctl(struct file *file, unsigned int cmd,
1216				 unsigned long arg);
1217
1218/* nv04_dac.c */
1219extern int nv04_dac_create(struct drm_connector *, struct dcb_entry *);
1220extern uint32_t nv17_dac_sample_load(struct drm_encoder *encoder);
1221extern int nv04_dac_output_offset(struct drm_encoder *encoder);
1222extern void nv04_dac_update_dacclk(struct drm_encoder *encoder, bool enable);
1223extern bool nv04_dac_in_use(struct drm_encoder *encoder);
1224
1225/* nv04_dfp.c */
1226extern int nv04_dfp_create(struct drm_connector *, struct dcb_entry *);
1227extern int nv04_dfp_get_bound_head(struct drm_device *dev, struct dcb_entry *dcbent);
1228extern void nv04_dfp_bind_head(struct drm_device *dev, struct dcb_entry *dcbent,
1229			       int head, bool dl);
1230extern void nv04_dfp_disable(struct drm_device *dev, int head);
1231extern void nv04_dfp_update_fp_control(struct drm_encoder *encoder, int mode);
1232
1233/* nv04_tv.c */
1234extern int nv04_tv_identify(struct drm_device *dev, int i2c_index);
1235extern int nv04_tv_create(struct drm_connector *, struct dcb_entry *);
1236
1237/* nv17_tv.c */
1238extern int nv17_tv_create(struct drm_connector *, struct dcb_entry *);
1239
1240/* nv04_display.c */
1241extern int nv04_display_early_init(struct drm_device *);
1242extern void nv04_display_late_takedown(struct drm_device *);
1243extern int nv04_display_create(struct drm_device *);
1244extern int nv04_display_init(struct drm_device *);
1245extern void nv04_display_destroy(struct drm_device *);
1246
1247/* nv04_crtc.c */
1248extern int nv04_crtc_create(struct drm_device *, int index);
1249
1250/* nouveau_bo.c */
1251extern struct ttm_bo_driver nouveau_bo_driver;
1252extern int nouveau_bo_new(struct drm_device *, struct nouveau_channel *,
1253			  int size, int align, uint32_t flags,
1254			  uint32_t tile_mode, uint32_t tile_flags,
1255			  struct nouveau_bo **);
1256extern int nouveau_bo_pin(struct nouveau_bo *, uint32_t flags);
1257extern int nouveau_bo_unpin(struct nouveau_bo *);
1258extern int nouveau_bo_map(struct nouveau_bo *);
1259extern void nouveau_bo_unmap(struct nouveau_bo *);
1260extern void nouveau_bo_placement_set(struct nouveau_bo *, uint32_t type,
1261				     uint32_t busy);
1262extern u16 nouveau_bo_rd16(struct nouveau_bo *nvbo, unsigned index);
1263extern void nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val);
1264extern u32 nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index);
1265extern void nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val);
1266extern void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *);
1267extern int nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
1268			       bool no_wait_reserve, bool no_wait_gpu);
1269
1270/* nouveau_fence.c */
1271struct nouveau_fence;
1272extern int nouveau_fence_init(struct drm_device *);
1273extern void nouveau_fence_fini(struct drm_device *);
1274extern int nouveau_fence_channel_init(struct nouveau_channel *);
1275extern void nouveau_fence_channel_fini(struct nouveau_channel *);
1276extern void nouveau_fence_update(struct nouveau_channel *);
1277extern int nouveau_fence_new(struct nouveau_channel *, struct nouveau_fence **,
1278			     bool emit);
1279extern int nouveau_fence_emit(struct nouveau_fence *);
1280extern void nouveau_fence_work(struct nouveau_fence *fence,
1281			       void (*work)(void *priv, bool signalled),
1282			       void *priv);
1283struct nouveau_channel *nouveau_fence_channel(struct nouveau_fence *);
1284
1285extern bool __nouveau_fence_signalled(void *obj, void *arg);
1286extern int __nouveau_fence_wait(void *obj, void *arg, bool lazy, bool intr);
1287extern int __nouveau_fence_flush(void *obj, void *arg);
1288extern void __nouveau_fence_unref(void **obj);
1289extern void *__nouveau_fence_ref(void *obj);
1290
1291static inline bool nouveau_fence_signalled(struct nouveau_fence *obj)
1292{
1293	return __nouveau_fence_signalled(obj, NULL);
1294}
1295static inline int
1296nouveau_fence_wait(struct nouveau_fence *obj, bool lazy, bool intr)
1297{
1298	return __nouveau_fence_wait(obj, NULL, lazy, intr);
1299}
1300extern int nouveau_fence_sync(struct nouveau_fence *, struct nouveau_channel *);
1301static inline int nouveau_fence_flush(struct nouveau_fence *obj)
1302{
1303	return __nouveau_fence_flush(obj, NULL);
1304}
1305static inline void nouveau_fence_unref(struct nouveau_fence **obj)
1306{
1307	__nouveau_fence_unref((void **)obj);
1308}
1309static inline struct nouveau_fence *nouveau_fence_ref(struct nouveau_fence *obj)
1310{
1311	return __nouveau_fence_ref(obj);
1312}
1313
1314/* nouveau_gem.c */
1315extern int nouveau_gem_new(struct drm_device *, struct nouveau_channel *,
1316			   int size, int align, uint32_t domain,
1317			   uint32_t tile_mode, uint32_t tile_flags,
1318			   struct nouveau_bo **);
1319extern int nouveau_gem_object_new(struct drm_gem_object *);
1320extern void nouveau_gem_object_del(struct drm_gem_object *);
1321extern int nouveau_gem_ioctl_new(struct drm_device *, void *,
1322				 struct drm_file *);
1323extern int nouveau_gem_ioctl_pushbuf(struct drm_device *, void *,
1324				     struct drm_file *);
1325extern int nouveau_gem_ioctl_cpu_prep(struct drm_device *, void *,
1326				      struct drm_file *);
1327extern int nouveau_gem_ioctl_cpu_fini(struct drm_device *, void *,
1328				      struct drm_file *);
1329extern int nouveau_gem_ioctl_info(struct drm_device *, void *,
1330				  struct drm_file *);
1331
1332/* nouveau_display.c */
1333int nouveau_vblank_enable(struct drm_device *dev, int crtc);
1334void nouveau_vblank_disable(struct drm_device *dev, int crtc);
1335int nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
1336			   struct drm_pending_vblank_event *event);
1337int nouveau_finish_page_flip(struct nouveau_channel *,
1338			     struct nouveau_page_flip_state *);
1339
1340/* nv10_gpio.c */
1341int nv10_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
1342int nv10_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
1343
1344/* nv50_gpio.c */
1345int nv50_gpio_init(struct drm_device *dev);
1346void nv50_gpio_fini(struct drm_device *dev);
1347int nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
1348int nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
1349int  nv50_gpio_irq_register(struct drm_device *, enum dcb_gpio_tag,
1350			    void (*)(void *, int), void *);
1351void nv50_gpio_irq_unregister(struct drm_device *, enum dcb_gpio_tag,
1352			      void (*)(void *, int), void *);
1353bool nv50_gpio_irq_enable(struct drm_device *, enum dcb_gpio_tag, bool on);
1354
1355/* nv50_calc. */
1356int nv50_calc_pll(struct drm_device *, struct pll_lims *, int clk,
1357		  int *N1, int *M1, int *N2, int *M2, int *P);
1358int nva3_calc_pll(struct drm_device *, struct pll_lims *,
1359		  int clk, int *N, int *fN, int *M, int *P);
1360
1361#ifndef ioread32_native
1362#ifdef __BIG_ENDIAN
1363#define ioread16_native ioread16be
1364#define iowrite16_native iowrite16be
1365#define ioread32_native  ioread32be
1366#define iowrite32_native iowrite32be
1367#else /* def __BIG_ENDIAN */
1368#define ioread16_native ioread16
1369#define iowrite16_native iowrite16
1370#define ioread32_native  ioread32
1371#define iowrite32_native iowrite32
1372#endif /* def __BIG_ENDIAN else */
1373#endif /* !ioread32_native */
1374
1375/* channel control reg access */
1376static inline u32 nvchan_rd32(struct nouveau_channel *chan, unsigned reg)
1377{
1378	return ioread32_native(chan->user + reg);
1379}
1380
1381static inline void nvchan_wr32(struct nouveau_channel *chan,
1382							unsigned reg, u32 val)
1383{
1384	iowrite32_native(val, chan->user + reg);
1385}
1386
1387/* register access */
1388static inline u32 nv_rd32(struct drm_device *dev, unsigned reg)
1389{
1390	struct drm_nouveau_private *dev_priv = dev->dev_private;
1391	return ioread32_native(dev_priv->mmio + reg);
1392}
1393
1394static inline void nv_wr32(struct drm_device *dev, unsigned reg, u32 val)
1395{
1396	struct drm_nouveau_private *dev_priv = dev->dev_private;
1397	iowrite32_native(val, dev_priv->mmio + reg);
1398}
1399
1400static inline u32 nv_mask(struct drm_device *dev, u32 reg, u32 mask, u32 val)
1401{
1402	u32 tmp = nv_rd32(dev, reg);
1403	nv_wr32(dev, reg, (tmp & ~mask) | val);
1404	return tmp;
1405}
1406
1407static inline u8 nv_rd08(struct drm_device *dev, unsigned reg)
1408{
1409	struct drm_nouveau_private *dev_priv = dev->dev_private;
1410	return ioread8(dev_priv->mmio + reg);
1411}
1412
1413static inline void nv_wr08(struct drm_device *dev, unsigned reg, u8 val)
1414{
1415	struct drm_nouveau_private *dev_priv = dev->dev_private;
1416	iowrite8(val, dev_priv->mmio + reg);
1417}
1418
1419#define nv_wait(dev, reg, mask, val) \
1420	nouveau_wait_eq(dev, 2000000000ULL, (reg), (mask), (val))
1421#define nv_wait_ne(dev, reg, mask, val) \
1422	nouveau_wait_ne(dev, 2000000000ULL, (reg), (mask), (val))
1423
1424/* PRAMIN access */
1425static inline u32 nv_ri32(struct drm_device *dev, unsigned offset)
1426{
1427	struct drm_nouveau_private *dev_priv = dev->dev_private;
1428	return ioread32_native(dev_priv->ramin + offset);
1429}
1430
1431static inline void nv_wi32(struct drm_device *dev, unsigned offset, u32 val)
1432{
1433	struct drm_nouveau_private *dev_priv = dev->dev_private;
1434	iowrite32_native(val, dev_priv->ramin + offset);
1435}
1436
1437/* object access */
1438extern u32 nv_ro32(struct nouveau_gpuobj *, u32 offset);
1439extern void nv_wo32(struct nouveau_gpuobj *, u32 offset, u32 val);
1440
1441/*
1442 * Logging
1443 * Argument d is (struct drm_device *).
1444 */
1445#define NV_PRINTK(level, d, fmt, arg...) \
1446	printk(level "[" DRM_NAME "] " DRIVER_NAME " %s: " fmt, \
1447					pci_name(d->pdev), ##arg)
1448#ifndef NV_DEBUG_NOTRACE
1449#define NV_DEBUG(d, fmt, arg...) do {                                          \
1450	if (drm_debug & DRM_UT_DRIVER) {                                       \
1451		NV_PRINTK(KERN_DEBUG, d, "%s:%d - " fmt, __func__,             \
1452			  __LINE__, ##arg);                                    \
1453	}                                                                      \
1454} while (0)
1455#define NV_DEBUG_KMS(d, fmt, arg...) do {                                      \
1456	if (drm_debug & DRM_UT_KMS) {                                          \
1457		NV_PRINTK(KERN_DEBUG, d, "%s:%d - " fmt, __func__,             \
1458			  __LINE__, ##arg);                                    \
1459	}                                                                      \
1460} while (0)
1461#else
1462#define NV_DEBUG(d, fmt, arg...) do {                                          \
1463	if (drm_debug & DRM_UT_DRIVER)                                         \
1464		NV_PRINTK(KERN_DEBUG, d, fmt, ##arg);                          \
1465} while (0)
1466#define NV_DEBUG_KMS(d, fmt, arg...) do {                                      \
1467	if (drm_debug & DRM_UT_KMS)                                            \
1468		NV_PRINTK(KERN_DEBUG, d, fmt, ##arg);                          \
1469} while (0)
1470#endif
1471#define NV_ERROR(d, fmt, arg...) NV_PRINTK(KERN_ERR, d, fmt, ##arg)
1472#define NV_INFO(d, fmt, arg...) NV_PRINTK(KERN_INFO, d, fmt, ##arg)
1473#define NV_TRACEWARN(d, fmt, arg...) NV_PRINTK(KERN_NOTICE, d, fmt, ##arg)
1474#define NV_TRACE(d, fmt, arg...) NV_PRINTK(KERN_INFO, d, fmt, ##arg)
1475#define NV_WARN(d, fmt, arg...) NV_PRINTK(KERN_WARNING, d, fmt, ##arg)
1476
1477/* nouveau_reg_debug bitmask */
1478enum {
1479	NOUVEAU_REG_DEBUG_MC             = 0x1,
1480	NOUVEAU_REG_DEBUG_VIDEO          = 0x2,
1481	NOUVEAU_REG_DEBUG_FB             = 0x4,
1482	NOUVEAU_REG_DEBUG_EXTDEV         = 0x8,
1483	NOUVEAU_REG_DEBUG_CRTC           = 0x10,
1484	NOUVEAU_REG_DEBUG_RAMDAC         = 0x20,
1485	NOUVEAU_REG_DEBUG_VGACRTC        = 0x40,
1486	NOUVEAU_REG_DEBUG_RMVIO          = 0x80,
1487	NOUVEAU_REG_DEBUG_VGAATTR        = 0x100,
1488	NOUVEAU_REG_DEBUG_EVO            = 0x200,
1489};
1490
1491#define NV_REG_DEBUG(type, dev, fmt, arg...) do { \
1492	if (nouveau_reg_debug & NOUVEAU_REG_DEBUG_##type) \
1493		NV_PRINTK(KERN_DEBUG, dev, "%s: " fmt, __func__, ##arg); \
1494} while (0)
1495
1496static inline bool
1497nv_two_heads(struct drm_device *dev)
1498{
1499	struct drm_nouveau_private *dev_priv = dev->dev_private;
1500	const int impl = dev->pci_device & 0x0ff0;
1501
1502	if (dev_priv->card_type >= NV_10 && impl != 0x0100 &&
1503	    impl != 0x0150 && impl != 0x01a0 && impl != 0x0200)
1504		return true;
1505
1506	return false;
1507}
1508
1509static inline bool
1510nv_gf4_disp_arch(struct drm_device *dev)
1511{
1512	return nv_two_heads(dev) && (dev->pci_device & 0x0ff0) != 0x0110;
1513}
1514
1515static inline bool
1516nv_two_reg_pll(struct drm_device *dev)
1517{
1518	struct drm_nouveau_private *dev_priv = dev->dev_private;
1519	const int impl = dev->pci_device & 0x0ff0;
1520
1521	if (impl == 0x0310 || impl == 0x0340 || dev_priv->card_type >= NV_40)
1522		return true;
1523	return false;
1524}
1525
1526static inline bool
1527nv_match_device(struct drm_device *dev, unsigned device,
1528		unsigned sub_vendor, unsigned sub_device)
1529{
1530	return dev->pdev->device == device &&
1531		dev->pdev->subsystem_vendor == sub_vendor &&
1532		dev->pdev->subsystem_device == sub_device;
1533}
1534
1535static inline void *
1536nv_engine(struct drm_device *dev, int engine)
1537{
1538	struct drm_nouveau_private *dev_priv = dev->dev_private;
1539	return (void *)dev_priv->eng[engine];
1540}
1541
1542/* returns 1 if device is one of the nv4x using the 0x4497 object class,
1543 * helpful to determine a number of other hardware features
1544 */
1545static inline int
1546nv44_graph_class(struct drm_device *dev)
1547{
1548	struct drm_nouveau_private *dev_priv = dev->dev_private;
1549
1550	if ((dev_priv->chipset & 0xf0) == 0x60)
1551		return 1;
1552
1553	return !(0x0baf & (1 << (dev_priv->chipset & 0x0f)));
1554}
1555
1556/* memory type/access flags, do not match hardware values */
1557#define NV_MEM_ACCESS_RO  1
1558#define NV_MEM_ACCESS_WO  2
1559#define NV_MEM_ACCESS_RW (NV_MEM_ACCESS_RO | NV_MEM_ACCESS_WO)
1560#define NV_MEM_ACCESS_SYS 4
1561#define NV_MEM_ACCESS_VM  8
1562
1563#define NV_MEM_TARGET_VRAM        0
1564#define NV_MEM_TARGET_PCI         1
1565#define NV_MEM_TARGET_PCI_NOSNOOP 2
1566#define NV_MEM_TARGET_VM          3
1567#define NV_MEM_TARGET_GART        4
1568
1569#define NV_MEM_TYPE_VM 0x7f
1570#define NV_MEM_COMP_VM 0x03
1571
1572/* NV_SW object class */
1573#define NV_SW                                                        0x0000506e
1574#define NV_SW_DMA_SEMAPHORE                                          0x00000060
1575#define NV_SW_SEMAPHORE_OFFSET                                       0x00000064
1576#define NV_SW_SEMAPHORE_ACQUIRE                                      0x00000068
1577#define NV_SW_SEMAPHORE_RELEASE                                      0x0000006c
1578#define NV_SW_YIELD                                                  0x00000080
1579#define NV_SW_DMA_VBLSEM                                             0x0000018c
1580#define NV_SW_VBLSEM_OFFSET                                          0x00000400
1581#define NV_SW_VBLSEM_RELEASE_VALUE                                   0x00000404
1582#define NV_SW_VBLSEM_RELEASE                                         0x00000408
1583#define NV_SW_PAGE_FLIP                                              0x00000500
1584
1585#endif /* __NOUVEAU_DRV_H__ */
1586