nouveau_drv.h revision 0411de854898a2402cf4bd915bed7ec9a6b76f9a
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;
789extern int nouveau_ctxfw;
790
791extern int nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state);
792extern int nouveau_pci_resume(struct pci_dev *pdev);
793
794/* nouveau_state.c */
795extern void nouveau_preclose(struct drm_device *dev, struct drm_file *);
796extern int  nouveau_load(struct drm_device *, unsigned long flags);
797extern int  nouveau_firstopen(struct drm_device *);
798extern void nouveau_lastclose(struct drm_device *);
799extern int  nouveau_unload(struct drm_device *);
800extern int  nouveau_ioctl_getparam(struct drm_device *, void *data,
801				   struct drm_file *);
802extern int  nouveau_ioctl_setparam(struct drm_device *, void *data,
803				   struct drm_file *);
804extern bool nouveau_wait_eq(struct drm_device *, uint64_t timeout,
805			    uint32_t reg, uint32_t mask, uint32_t val);
806extern bool nouveau_wait_ne(struct drm_device *, uint64_t timeout,
807			    uint32_t reg, uint32_t mask, uint32_t val);
808extern bool nouveau_wait_for_idle(struct drm_device *);
809extern int  nouveau_card_init(struct drm_device *);
810
811/* nouveau_mem.c */
812extern int  nouveau_mem_vram_init(struct drm_device *);
813extern void nouveau_mem_vram_fini(struct drm_device *);
814extern int  nouveau_mem_gart_init(struct drm_device *);
815extern void nouveau_mem_gart_fini(struct drm_device *);
816extern int  nouveau_mem_init_agp(struct drm_device *);
817extern int  nouveau_mem_reset_agp(struct drm_device *);
818extern void nouveau_mem_close(struct drm_device *);
819extern int  nouveau_mem_detect(struct drm_device *);
820extern bool nouveau_mem_flags_valid(struct drm_device *, u32 tile_flags);
821extern struct nouveau_tile_reg *nv10_mem_set_tiling(
822	struct drm_device *dev, uint32_t addr, uint32_t size,
823	uint32_t pitch, uint32_t flags);
824extern void nv10_mem_put_tile_region(struct drm_device *dev,
825				     struct nouveau_tile_reg *tile,
826				     struct nouveau_fence *fence);
827extern const struct ttm_mem_type_manager_func nouveau_vram_manager;
828extern const struct ttm_mem_type_manager_func nouveau_gart_manager;
829
830/* nouveau_notifier.c */
831extern int  nouveau_notifier_init_channel(struct nouveau_channel *);
832extern void nouveau_notifier_takedown_channel(struct nouveau_channel *);
833extern int  nouveau_notifier_alloc(struct nouveau_channel *, uint32_t handle,
834				   int cout, uint32_t start, uint32_t end,
835				   uint32_t *offset);
836extern int  nouveau_notifier_offset(struct nouveau_gpuobj *, uint32_t *);
837extern int  nouveau_ioctl_notifier_alloc(struct drm_device *, void *data,
838					 struct drm_file *);
839extern int  nouveau_ioctl_notifier_free(struct drm_device *, void *data,
840					struct drm_file *);
841
842/* nouveau_channel.c */
843extern struct drm_ioctl_desc nouveau_ioctls[];
844extern int nouveau_max_ioctl;
845extern void nouveau_channel_cleanup(struct drm_device *, struct drm_file *);
846extern int  nouveau_channel_alloc(struct drm_device *dev,
847				  struct nouveau_channel **chan,
848				  struct drm_file *file_priv,
849				  uint32_t fb_ctxdma, uint32_t tt_ctxdma);
850extern struct nouveau_channel *
851nouveau_channel_get_unlocked(struct nouveau_channel *);
852extern struct nouveau_channel *
853nouveau_channel_get(struct drm_device *, struct drm_file *, int id);
854extern void nouveau_channel_put_unlocked(struct nouveau_channel **);
855extern void nouveau_channel_put(struct nouveau_channel **);
856extern void nouveau_channel_ref(struct nouveau_channel *chan,
857				struct nouveau_channel **pchan);
858extern void nouveau_channel_idle(struct nouveau_channel *chan);
859
860/* nouveau_object.c */
861#define NVOBJ_ENGINE_ADD(d, e, p) do {                                         \
862	struct drm_nouveau_private *dev_priv = (d)->dev_private;               \
863	dev_priv->eng[NVOBJ_ENGINE_##e] = (p);                                 \
864} while (0)
865
866#define NVOBJ_ENGINE_DEL(d, e) do {                                            \
867	struct drm_nouveau_private *dev_priv = (d)->dev_private;               \
868	dev_priv->eng[NVOBJ_ENGINE_##e] = NULL;                                \
869} while (0)
870
871#define NVOBJ_CLASS(d, c, e) do {                                              \
872	int ret = nouveau_gpuobj_class_new((d), (c), NVOBJ_ENGINE_##e);        \
873	if (ret)                                                               \
874		return ret;                                                    \
875} while (0)
876
877#define NVOBJ_MTHD(d, c, m, e) do {                                            \
878	int ret = nouveau_gpuobj_mthd_new((d), (c), (m), (e));                 \
879	if (ret)                                                               \
880		return ret;                                                    \
881} while (0)
882
883extern int  nouveau_gpuobj_early_init(struct drm_device *);
884extern int  nouveau_gpuobj_init(struct drm_device *);
885extern void nouveau_gpuobj_takedown(struct drm_device *);
886extern int  nouveau_gpuobj_suspend(struct drm_device *dev);
887extern void nouveau_gpuobj_resume(struct drm_device *dev);
888extern int  nouveau_gpuobj_class_new(struct drm_device *, u32 class, u32 eng);
889extern int  nouveau_gpuobj_mthd_new(struct drm_device *, u32 class, u32 mthd,
890				    int (*exec)(struct nouveau_channel *,
891						u32 class, u32 mthd, u32 data));
892extern int  nouveau_gpuobj_mthd_call(struct nouveau_channel *, u32, u32, u32);
893extern int  nouveau_gpuobj_mthd_call2(struct drm_device *, int, u32, u32, u32);
894extern int nouveau_gpuobj_channel_init(struct nouveau_channel *,
895				       uint32_t vram_h, uint32_t tt_h);
896extern void nouveau_gpuobj_channel_takedown(struct nouveau_channel *);
897extern int nouveau_gpuobj_new(struct drm_device *, struct nouveau_channel *,
898			      uint32_t size, int align, uint32_t flags,
899			      struct nouveau_gpuobj **);
900extern void nouveau_gpuobj_ref(struct nouveau_gpuobj *,
901			       struct nouveau_gpuobj **);
902extern int nouveau_gpuobj_new_fake(struct drm_device *, u32 pinst, u64 vinst,
903				   u32 size, u32 flags,
904				   struct nouveau_gpuobj **);
905extern int nouveau_gpuobj_dma_new(struct nouveau_channel *, int class,
906				  uint64_t offset, uint64_t size, int access,
907				  int target, struct nouveau_gpuobj **);
908extern int nouveau_gpuobj_gr_new(struct nouveau_channel *, u32 handle, int class);
909extern int nv50_gpuobj_dma_new(struct nouveau_channel *, int class, u64 base,
910			       u64 size, int target, int access, u32 type,
911			       u32 comp, struct nouveau_gpuobj **pobj);
912extern void nv50_gpuobj_dma_init(struct nouveau_gpuobj *, u32 offset,
913				 int class, u64 base, u64 size, int target,
914				 int access, u32 type, u32 comp);
915extern int nouveau_ioctl_grobj_alloc(struct drm_device *, void *data,
916				     struct drm_file *);
917extern int nouveau_ioctl_gpuobj_free(struct drm_device *, void *data,
918				     struct drm_file *);
919
920/* nouveau_irq.c */
921extern int         nouveau_irq_init(struct drm_device *);
922extern void        nouveau_irq_fini(struct drm_device *);
923extern irqreturn_t nouveau_irq_handler(DRM_IRQ_ARGS);
924extern void        nouveau_irq_register(struct drm_device *, int status_bit,
925					void (*)(struct drm_device *));
926extern void        nouveau_irq_unregister(struct drm_device *, int status_bit);
927extern void        nouveau_irq_preinstall(struct drm_device *);
928extern int         nouveau_irq_postinstall(struct drm_device *);
929extern void        nouveau_irq_uninstall(struct drm_device *);
930
931/* nouveau_sgdma.c */
932extern int nouveau_sgdma_init(struct drm_device *);
933extern void nouveau_sgdma_takedown(struct drm_device *);
934extern uint32_t nouveau_sgdma_get_physical(struct drm_device *,
935					   uint32_t offset);
936extern struct ttm_backend *nouveau_sgdma_init_ttm(struct drm_device *);
937
938/* nouveau_debugfs.c */
939#if defined(CONFIG_DRM_NOUVEAU_DEBUG)
940extern int  nouveau_debugfs_init(struct drm_minor *);
941extern void nouveau_debugfs_takedown(struct drm_minor *);
942extern int  nouveau_debugfs_channel_init(struct nouveau_channel *);
943extern void nouveau_debugfs_channel_fini(struct nouveau_channel *);
944#else
945static inline int
946nouveau_debugfs_init(struct drm_minor *minor)
947{
948	return 0;
949}
950
951static inline void nouveau_debugfs_takedown(struct drm_minor *minor)
952{
953}
954
955static inline int
956nouveau_debugfs_channel_init(struct nouveau_channel *chan)
957{
958	return 0;
959}
960
961static inline void
962nouveau_debugfs_channel_fini(struct nouveau_channel *chan)
963{
964}
965#endif
966
967/* nouveau_dma.c */
968extern void nouveau_dma_pre_init(struct nouveau_channel *);
969extern int  nouveau_dma_init(struct nouveau_channel *);
970extern int  nouveau_dma_wait(struct nouveau_channel *, int slots, int size);
971
972/* nouveau_acpi.c */
973#define ROM_BIOS_PAGE 4096
974#if defined(CONFIG_ACPI)
975void nouveau_register_dsm_handler(void);
976void nouveau_unregister_dsm_handler(void);
977int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len);
978bool nouveau_acpi_rom_supported(struct pci_dev *pdev);
979int nouveau_acpi_edid(struct drm_device *, struct drm_connector *);
980#else
981static inline void nouveau_register_dsm_handler(void) {}
982static inline void nouveau_unregister_dsm_handler(void) {}
983static inline bool nouveau_acpi_rom_supported(struct pci_dev *pdev) { return false; }
984static inline int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len) { return -EINVAL; }
985static inline int nouveau_acpi_edid(struct drm_device *dev, struct drm_connector *connector) { return -EINVAL; }
986#endif
987
988/* nouveau_backlight.c */
989#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
990extern int nouveau_backlight_init(struct drm_connector *);
991extern void nouveau_backlight_exit(struct drm_connector *);
992#else
993static inline int nouveau_backlight_init(struct drm_connector *dev)
994{
995	return 0;
996}
997
998static inline void nouveau_backlight_exit(struct drm_connector *dev) { }
999#endif
1000
1001/* nouveau_bios.c */
1002extern int nouveau_bios_init(struct drm_device *);
1003extern void nouveau_bios_takedown(struct drm_device *dev);
1004extern int nouveau_run_vbios_init(struct drm_device *);
1005extern void nouveau_bios_run_init_table(struct drm_device *, uint16_t table,
1006					struct dcb_entry *);
1007extern struct dcb_gpio_entry *nouveau_bios_gpio_entry(struct drm_device *,
1008						      enum dcb_gpio_tag);
1009extern struct dcb_connector_table_entry *
1010nouveau_bios_connector_entry(struct drm_device *, int index);
1011extern u32 get_pll_register(struct drm_device *, enum pll_types);
1012extern int get_pll_limits(struct drm_device *, uint32_t limit_match,
1013			  struct pll_lims *);
1014extern int nouveau_bios_run_display_table(struct drm_device *,
1015					  struct dcb_entry *,
1016					  uint32_t script, int pxclk);
1017extern void *nouveau_bios_dp_table(struct drm_device *, struct dcb_entry *,
1018				   int *length);
1019extern bool nouveau_bios_fp_mode(struct drm_device *, struct drm_display_mode *);
1020extern uint8_t *nouveau_bios_embedded_edid(struct drm_device *);
1021extern int nouveau_bios_parse_lvds_table(struct drm_device *, int pxclk,
1022					 bool *dl, bool *if_is_24bit);
1023extern int run_tmds_table(struct drm_device *, struct dcb_entry *,
1024			  int head, int pxclk);
1025extern int call_lvds_script(struct drm_device *, struct dcb_entry *, int head,
1026			    enum LVDS_script, int pxclk);
1027
1028/* nouveau_ttm.c */
1029int nouveau_ttm_global_init(struct drm_nouveau_private *);
1030void nouveau_ttm_global_release(struct drm_nouveau_private *);
1031int nouveau_ttm_mmap(struct file *, struct vm_area_struct *);
1032
1033/* nouveau_dp.c */
1034int nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
1035		     uint8_t *data, int data_nr);
1036bool nouveau_dp_detect(struct drm_encoder *);
1037bool nouveau_dp_link_train(struct drm_encoder *);
1038
1039/* nv04_fb.c */
1040extern int  nv04_fb_init(struct drm_device *);
1041extern void nv04_fb_takedown(struct drm_device *);
1042
1043/* nv10_fb.c */
1044extern int  nv10_fb_init(struct drm_device *);
1045extern void nv10_fb_takedown(struct drm_device *);
1046extern void nv10_fb_init_tile_region(struct drm_device *dev, int i,
1047				     uint32_t addr, uint32_t size,
1048				     uint32_t pitch, uint32_t flags);
1049extern void nv10_fb_set_tile_region(struct drm_device *dev, int i);
1050extern void nv10_fb_free_tile_region(struct drm_device *dev, int i);
1051
1052/* nv30_fb.c */
1053extern int  nv30_fb_init(struct drm_device *);
1054extern void nv30_fb_takedown(struct drm_device *);
1055extern void nv30_fb_init_tile_region(struct drm_device *dev, int i,
1056				     uint32_t addr, uint32_t size,
1057				     uint32_t pitch, uint32_t flags);
1058extern void nv30_fb_free_tile_region(struct drm_device *dev, int i);
1059
1060/* nv40_fb.c */
1061extern int  nv40_fb_init(struct drm_device *);
1062extern void nv40_fb_takedown(struct drm_device *);
1063extern void nv40_fb_set_tile_region(struct drm_device *dev, int i);
1064
1065/* nv50_fb.c */
1066extern int  nv50_fb_init(struct drm_device *);
1067extern void nv50_fb_takedown(struct drm_device *);
1068extern void nv50_fb_vm_trap(struct drm_device *, int display);
1069
1070/* nvc0_fb.c */
1071extern int  nvc0_fb_init(struct drm_device *);
1072extern void nvc0_fb_takedown(struct drm_device *);
1073
1074/* nv04_fifo.c */
1075extern int  nv04_fifo_init(struct drm_device *);
1076extern void nv04_fifo_fini(struct drm_device *);
1077extern void nv04_fifo_disable(struct drm_device *);
1078extern void nv04_fifo_enable(struct drm_device *);
1079extern bool nv04_fifo_reassign(struct drm_device *, bool);
1080extern bool nv04_fifo_cache_pull(struct drm_device *, bool);
1081extern int  nv04_fifo_channel_id(struct drm_device *);
1082extern int  nv04_fifo_create_context(struct nouveau_channel *);
1083extern void nv04_fifo_destroy_context(struct nouveau_channel *);
1084extern int  nv04_fifo_load_context(struct nouveau_channel *);
1085extern int  nv04_fifo_unload_context(struct drm_device *);
1086extern void nv04_fifo_isr(struct drm_device *);
1087
1088/* nv10_fifo.c */
1089extern int  nv10_fifo_init(struct drm_device *);
1090extern int  nv10_fifo_channel_id(struct drm_device *);
1091extern int  nv10_fifo_create_context(struct nouveau_channel *);
1092extern int  nv10_fifo_load_context(struct nouveau_channel *);
1093extern int  nv10_fifo_unload_context(struct drm_device *);
1094
1095/* nv40_fifo.c */
1096extern int  nv40_fifo_init(struct drm_device *);
1097extern int  nv40_fifo_create_context(struct nouveau_channel *);
1098extern int  nv40_fifo_load_context(struct nouveau_channel *);
1099extern int  nv40_fifo_unload_context(struct drm_device *);
1100
1101/* nv50_fifo.c */
1102extern int  nv50_fifo_init(struct drm_device *);
1103extern void nv50_fifo_takedown(struct drm_device *);
1104extern int  nv50_fifo_channel_id(struct drm_device *);
1105extern int  nv50_fifo_create_context(struct nouveau_channel *);
1106extern void nv50_fifo_destroy_context(struct nouveau_channel *);
1107extern int  nv50_fifo_load_context(struct nouveau_channel *);
1108extern int  nv50_fifo_unload_context(struct drm_device *);
1109extern void nv50_fifo_tlb_flush(struct drm_device *dev);
1110
1111/* nvc0_fifo.c */
1112extern int  nvc0_fifo_init(struct drm_device *);
1113extern void nvc0_fifo_takedown(struct drm_device *);
1114extern void nvc0_fifo_disable(struct drm_device *);
1115extern void nvc0_fifo_enable(struct drm_device *);
1116extern bool nvc0_fifo_reassign(struct drm_device *, bool);
1117extern bool nvc0_fifo_cache_pull(struct drm_device *, bool);
1118extern int  nvc0_fifo_channel_id(struct drm_device *);
1119extern int  nvc0_fifo_create_context(struct nouveau_channel *);
1120extern void nvc0_fifo_destroy_context(struct nouveau_channel *);
1121extern int  nvc0_fifo_load_context(struct nouveau_channel *);
1122extern int  nvc0_fifo_unload_context(struct drm_device *);
1123
1124/* nv04_graph.c */
1125extern int  nv04_graph_create(struct drm_device *);
1126extern void nv04_graph_fifo_access(struct drm_device *, bool);
1127extern int  nv04_graph_object_new(struct nouveau_channel *, int, u32, u16);
1128extern int  nv04_graph_mthd_page_flip(struct nouveau_channel *chan,
1129				      u32 class, u32 mthd, u32 data);
1130extern struct nouveau_bitfield nv04_graph_nsource[];
1131
1132/* nv10_graph.c */
1133extern int  nv10_graph_create(struct drm_device *);
1134extern struct nouveau_channel *nv10_graph_channel(struct drm_device *);
1135extern struct nouveau_bitfield nv10_graph_intr[];
1136extern struct nouveau_bitfield nv10_graph_nstatus[];
1137
1138/* nv20_graph.c */
1139extern int  nv20_graph_create(struct drm_device *);
1140
1141/* nv40_graph.c */
1142extern int  nv40_graph_create(struct drm_device *);
1143extern void nv40_grctx_init(struct nouveau_grctx *);
1144
1145/* nv50_graph.c */
1146extern int  nv50_graph_create(struct drm_device *);
1147extern int  nv50_grctx_init(struct nouveau_grctx *);
1148extern struct nouveau_enum nv50_data_error_names[];
1149extern int  nv50_graph_isr_chid(struct drm_device *dev, u64 inst);
1150
1151/* nvc0_graph.c */
1152extern int  nvc0_graph_create(struct drm_device *);
1153extern int  nvc0_graph_isr_chid(struct drm_device *dev, u64 inst);
1154
1155/* nv84_crypt.c */
1156extern int  nv84_crypt_create(struct drm_device *);
1157
1158/* nva3_copy.c */
1159extern int  nva3_copy_create(struct drm_device *dev);
1160
1161/* nvc0_copy.c */
1162extern int  nvc0_copy_create(struct drm_device *dev, int engine);
1163
1164/* nv40_mpeg.c */
1165extern int  nv40_mpeg_create(struct drm_device *dev);
1166
1167/* nv50_mpeg.c */
1168extern int  nv50_mpeg_create(struct drm_device *dev);
1169
1170/* nv04_instmem.c */
1171extern int  nv04_instmem_init(struct drm_device *);
1172extern void nv04_instmem_takedown(struct drm_device *);
1173extern int  nv04_instmem_suspend(struct drm_device *);
1174extern void nv04_instmem_resume(struct drm_device *);
1175extern int  nv04_instmem_get(struct nouveau_gpuobj *, u32 size, u32 align);
1176extern void nv04_instmem_put(struct nouveau_gpuobj *);
1177extern int  nv04_instmem_map(struct nouveau_gpuobj *);
1178extern void nv04_instmem_unmap(struct nouveau_gpuobj *);
1179extern void nv04_instmem_flush(struct drm_device *);
1180
1181/* nv50_instmem.c */
1182extern int  nv50_instmem_init(struct drm_device *);
1183extern void nv50_instmem_takedown(struct drm_device *);
1184extern int  nv50_instmem_suspend(struct drm_device *);
1185extern void nv50_instmem_resume(struct drm_device *);
1186extern int  nv50_instmem_get(struct nouveau_gpuobj *, u32 size, u32 align);
1187extern void nv50_instmem_put(struct nouveau_gpuobj *);
1188extern int  nv50_instmem_map(struct nouveau_gpuobj *);
1189extern void nv50_instmem_unmap(struct nouveau_gpuobj *);
1190extern void nv50_instmem_flush(struct drm_device *);
1191extern void nv84_instmem_flush(struct drm_device *);
1192
1193/* nvc0_instmem.c */
1194extern int  nvc0_instmem_init(struct drm_device *);
1195extern void nvc0_instmem_takedown(struct drm_device *);
1196extern int  nvc0_instmem_suspend(struct drm_device *);
1197extern void nvc0_instmem_resume(struct drm_device *);
1198
1199/* nv04_mc.c */
1200extern int  nv04_mc_init(struct drm_device *);
1201extern void nv04_mc_takedown(struct drm_device *);
1202
1203/* nv40_mc.c */
1204extern int  nv40_mc_init(struct drm_device *);
1205extern void nv40_mc_takedown(struct drm_device *);
1206
1207/* nv50_mc.c */
1208extern int  nv50_mc_init(struct drm_device *);
1209extern void nv50_mc_takedown(struct drm_device *);
1210
1211/* nv04_timer.c */
1212extern int  nv04_timer_init(struct drm_device *);
1213extern uint64_t nv04_timer_read(struct drm_device *);
1214extern void nv04_timer_takedown(struct drm_device *);
1215
1216extern long nouveau_compat_ioctl(struct file *file, unsigned int cmd,
1217				 unsigned long arg);
1218
1219/* nv04_dac.c */
1220extern int nv04_dac_create(struct drm_connector *, struct dcb_entry *);
1221extern uint32_t nv17_dac_sample_load(struct drm_encoder *encoder);
1222extern int nv04_dac_output_offset(struct drm_encoder *encoder);
1223extern void nv04_dac_update_dacclk(struct drm_encoder *encoder, bool enable);
1224extern bool nv04_dac_in_use(struct drm_encoder *encoder);
1225
1226/* nv04_dfp.c */
1227extern int nv04_dfp_create(struct drm_connector *, struct dcb_entry *);
1228extern int nv04_dfp_get_bound_head(struct drm_device *dev, struct dcb_entry *dcbent);
1229extern void nv04_dfp_bind_head(struct drm_device *dev, struct dcb_entry *dcbent,
1230			       int head, bool dl);
1231extern void nv04_dfp_disable(struct drm_device *dev, int head);
1232extern void nv04_dfp_update_fp_control(struct drm_encoder *encoder, int mode);
1233
1234/* nv04_tv.c */
1235extern int nv04_tv_identify(struct drm_device *dev, int i2c_index);
1236extern int nv04_tv_create(struct drm_connector *, struct dcb_entry *);
1237
1238/* nv17_tv.c */
1239extern int nv17_tv_create(struct drm_connector *, struct dcb_entry *);
1240
1241/* nv04_display.c */
1242extern int nv04_display_early_init(struct drm_device *);
1243extern void nv04_display_late_takedown(struct drm_device *);
1244extern int nv04_display_create(struct drm_device *);
1245extern int nv04_display_init(struct drm_device *);
1246extern void nv04_display_destroy(struct drm_device *);
1247
1248/* nv04_crtc.c */
1249extern int nv04_crtc_create(struct drm_device *, int index);
1250
1251/* nouveau_bo.c */
1252extern struct ttm_bo_driver nouveau_bo_driver;
1253extern int nouveau_bo_new(struct drm_device *, struct nouveau_channel *,
1254			  int size, int align, uint32_t flags,
1255			  uint32_t tile_mode, uint32_t tile_flags,
1256			  struct nouveau_bo **);
1257extern int nouveau_bo_pin(struct nouveau_bo *, uint32_t flags);
1258extern int nouveau_bo_unpin(struct nouveau_bo *);
1259extern int nouveau_bo_map(struct nouveau_bo *);
1260extern void nouveau_bo_unmap(struct nouveau_bo *);
1261extern void nouveau_bo_placement_set(struct nouveau_bo *, uint32_t type,
1262				     uint32_t busy);
1263extern u16 nouveau_bo_rd16(struct nouveau_bo *nvbo, unsigned index);
1264extern void nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val);
1265extern u32 nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index);
1266extern void nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val);
1267extern void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *);
1268extern int nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
1269			       bool no_wait_reserve, bool no_wait_gpu);
1270
1271/* nouveau_fence.c */
1272struct nouveau_fence;
1273extern int nouveau_fence_init(struct drm_device *);
1274extern void nouveau_fence_fini(struct drm_device *);
1275extern int nouveau_fence_channel_init(struct nouveau_channel *);
1276extern void nouveau_fence_channel_fini(struct nouveau_channel *);
1277extern void nouveau_fence_update(struct nouveau_channel *);
1278extern int nouveau_fence_new(struct nouveau_channel *, struct nouveau_fence **,
1279			     bool emit);
1280extern int nouveau_fence_emit(struct nouveau_fence *);
1281extern void nouveau_fence_work(struct nouveau_fence *fence,
1282			       void (*work)(void *priv, bool signalled),
1283			       void *priv);
1284struct nouveau_channel *nouveau_fence_channel(struct nouveau_fence *);
1285
1286extern bool __nouveau_fence_signalled(void *obj, void *arg);
1287extern int __nouveau_fence_wait(void *obj, void *arg, bool lazy, bool intr);
1288extern int __nouveau_fence_flush(void *obj, void *arg);
1289extern void __nouveau_fence_unref(void **obj);
1290extern void *__nouveau_fence_ref(void *obj);
1291
1292static inline bool nouveau_fence_signalled(struct nouveau_fence *obj)
1293{
1294	return __nouveau_fence_signalled(obj, NULL);
1295}
1296static inline int
1297nouveau_fence_wait(struct nouveau_fence *obj, bool lazy, bool intr)
1298{
1299	return __nouveau_fence_wait(obj, NULL, lazy, intr);
1300}
1301extern int nouveau_fence_sync(struct nouveau_fence *, struct nouveau_channel *);
1302static inline int nouveau_fence_flush(struct nouveau_fence *obj)
1303{
1304	return __nouveau_fence_flush(obj, NULL);
1305}
1306static inline void nouveau_fence_unref(struct nouveau_fence **obj)
1307{
1308	__nouveau_fence_unref((void **)obj);
1309}
1310static inline struct nouveau_fence *nouveau_fence_ref(struct nouveau_fence *obj)
1311{
1312	return __nouveau_fence_ref(obj);
1313}
1314
1315/* nouveau_gem.c */
1316extern int nouveau_gem_new(struct drm_device *, struct nouveau_channel *,
1317			   int size, int align, uint32_t domain,
1318			   uint32_t tile_mode, uint32_t tile_flags,
1319			   struct nouveau_bo **);
1320extern int nouveau_gem_object_new(struct drm_gem_object *);
1321extern void nouveau_gem_object_del(struct drm_gem_object *);
1322extern int nouveau_gem_ioctl_new(struct drm_device *, void *,
1323				 struct drm_file *);
1324extern int nouveau_gem_ioctl_pushbuf(struct drm_device *, void *,
1325				     struct drm_file *);
1326extern int nouveau_gem_ioctl_cpu_prep(struct drm_device *, void *,
1327				      struct drm_file *);
1328extern int nouveau_gem_ioctl_cpu_fini(struct drm_device *, void *,
1329				      struct drm_file *);
1330extern int nouveau_gem_ioctl_info(struct drm_device *, void *,
1331				  struct drm_file *);
1332
1333/* nouveau_display.c */
1334int nouveau_vblank_enable(struct drm_device *dev, int crtc);
1335void nouveau_vblank_disable(struct drm_device *dev, int crtc);
1336int nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
1337			   struct drm_pending_vblank_event *event);
1338int nouveau_finish_page_flip(struct nouveau_channel *,
1339			     struct nouveau_page_flip_state *);
1340
1341/* nv10_gpio.c */
1342int nv10_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
1343int nv10_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
1344
1345/* nv50_gpio.c */
1346int nv50_gpio_init(struct drm_device *dev);
1347void nv50_gpio_fini(struct drm_device *dev);
1348int nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
1349int nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
1350int  nv50_gpio_irq_register(struct drm_device *, enum dcb_gpio_tag,
1351			    void (*)(void *, int), void *);
1352void nv50_gpio_irq_unregister(struct drm_device *, enum dcb_gpio_tag,
1353			      void (*)(void *, int), void *);
1354bool nv50_gpio_irq_enable(struct drm_device *, enum dcb_gpio_tag, bool on);
1355
1356/* nv50_calc. */
1357int nv50_calc_pll(struct drm_device *, struct pll_lims *, int clk,
1358		  int *N1, int *M1, int *N2, int *M2, int *P);
1359int nva3_calc_pll(struct drm_device *, struct pll_lims *,
1360		  int clk, int *N, int *fN, int *M, int *P);
1361
1362#ifndef ioread32_native
1363#ifdef __BIG_ENDIAN
1364#define ioread16_native ioread16be
1365#define iowrite16_native iowrite16be
1366#define ioread32_native  ioread32be
1367#define iowrite32_native iowrite32be
1368#else /* def __BIG_ENDIAN */
1369#define ioread16_native ioread16
1370#define iowrite16_native iowrite16
1371#define ioread32_native  ioread32
1372#define iowrite32_native iowrite32
1373#endif /* def __BIG_ENDIAN else */
1374#endif /* !ioread32_native */
1375
1376/* channel control reg access */
1377static inline u32 nvchan_rd32(struct nouveau_channel *chan, unsigned reg)
1378{
1379	return ioread32_native(chan->user + reg);
1380}
1381
1382static inline void nvchan_wr32(struct nouveau_channel *chan,
1383							unsigned reg, u32 val)
1384{
1385	iowrite32_native(val, chan->user + reg);
1386}
1387
1388/* register access */
1389static inline u32 nv_rd32(struct drm_device *dev, unsigned reg)
1390{
1391	struct drm_nouveau_private *dev_priv = dev->dev_private;
1392	return ioread32_native(dev_priv->mmio + reg);
1393}
1394
1395static inline void nv_wr32(struct drm_device *dev, unsigned reg, u32 val)
1396{
1397	struct drm_nouveau_private *dev_priv = dev->dev_private;
1398	iowrite32_native(val, dev_priv->mmio + reg);
1399}
1400
1401static inline u32 nv_mask(struct drm_device *dev, u32 reg, u32 mask, u32 val)
1402{
1403	u32 tmp = nv_rd32(dev, reg);
1404	nv_wr32(dev, reg, (tmp & ~mask) | val);
1405	return tmp;
1406}
1407
1408static inline u8 nv_rd08(struct drm_device *dev, unsigned reg)
1409{
1410	struct drm_nouveau_private *dev_priv = dev->dev_private;
1411	return ioread8(dev_priv->mmio + reg);
1412}
1413
1414static inline void nv_wr08(struct drm_device *dev, unsigned reg, u8 val)
1415{
1416	struct drm_nouveau_private *dev_priv = dev->dev_private;
1417	iowrite8(val, dev_priv->mmio + reg);
1418}
1419
1420#define nv_wait(dev, reg, mask, val) \
1421	nouveau_wait_eq(dev, 2000000000ULL, (reg), (mask), (val))
1422#define nv_wait_ne(dev, reg, mask, val) \
1423	nouveau_wait_ne(dev, 2000000000ULL, (reg), (mask), (val))
1424
1425/* PRAMIN access */
1426static inline u32 nv_ri32(struct drm_device *dev, unsigned offset)
1427{
1428	struct drm_nouveau_private *dev_priv = dev->dev_private;
1429	return ioread32_native(dev_priv->ramin + offset);
1430}
1431
1432static inline void nv_wi32(struct drm_device *dev, unsigned offset, u32 val)
1433{
1434	struct drm_nouveau_private *dev_priv = dev->dev_private;
1435	iowrite32_native(val, dev_priv->ramin + offset);
1436}
1437
1438/* object access */
1439extern u32 nv_ro32(struct nouveau_gpuobj *, u32 offset);
1440extern void nv_wo32(struct nouveau_gpuobj *, u32 offset, u32 val);
1441
1442/*
1443 * Logging
1444 * Argument d is (struct drm_device *).
1445 */
1446#define NV_PRINTK(level, d, fmt, arg...) \
1447	printk(level "[" DRM_NAME "] " DRIVER_NAME " %s: " fmt, \
1448					pci_name(d->pdev), ##arg)
1449#ifndef NV_DEBUG_NOTRACE
1450#define NV_DEBUG(d, fmt, arg...) do {                                          \
1451	if (drm_debug & DRM_UT_DRIVER) {                                       \
1452		NV_PRINTK(KERN_DEBUG, d, "%s:%d - " fmt, __func__,             \
1453			  __LINE__, ##arg);                                    \
1454	}                                                                      \
1455} while (0)
1456#define NV_DEBUG_KMS(d, fmt, arg...) do {                                      \
1457	if (drm_debug & DRM_UT_KMS) {                                          \
1458		NV_PRINTK(KERN_DEBUG, d, "%s:%d - " fmt, __func__,             \
1459			  __LINE__, ##arg);                                    \
1460	}                                                                      \
1461} while (0)
1462#else
1463#define NV_DEBUG(d, fmt, arg...) do {                                          \
1464	if (drm_debug & DRM_UT_DRIVER)                                         \
1465		NV_PRINTK(KERN_DEBUG, d, fmt, ##arg);                          \
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, fmt, ##arg);                          \
1470} while (0)
1471#endif
1472#define NV_ERROR(d, fmt, arg...) NV_PRINTK(KERN_ERR, d, fmt, ##arg)
1473#define NV_INFO(d, fmt, arg...) NV_PRINTK(KERN_INFO, d, fmt, ##arg)
1474#define NV_TRACEWARN(d, fmt, arg...) NV_PRINTK(KERN_NOTICE, d, fmt, ##arg)
1475#define NV_TRACE(d, fmt, arg...) NV_PRINTK(KERN_INFO, d, fmt, ##arg)
1476#define NV_WARN(d, fmt, arg...) NV_PRINTK(KERN_WARNING, d, fmt, ##arg)
1477
1478/* nouveau_reg_debug bitmask */
1479enum {
1480	NOUVEAU_REG_DEBUG_MC             = 0x1,
1481	NOUVEAU_REG_DEBUG_VIDEO          = 0x2,
1482	NOUVEAU_REG_DEBUG_FB             = 0x4,
1483	NOUVEAU_REG_DEBUG_EXTDEV         = 0x8,
1484	NOUVEAU_REG_DEBUG_CRTC           = 0x10,
1485	NOUVEAU_REG_DEBUG_RAMDAC         = 0x20,
1486	NOUVEAU_REG_DEBUG_VGACRTC        = 0x40,
1487	NOUVEAU_REG_DEBUG_RMVIO          = 0x80,
1488	NOUVEAU_REG_DEBUG_VGAATTR        = 0x100,
1489	NOUVEAU_REG_DEBUG_EVO            = 0x200,
1490};
1491
1492#define NV_REG_DEBUG(type, dev, fmt, arg...) do { \
1493	if (nouveau_reg_debug & NOUVEAU_REG_DEBUG_##type) \
1494		NV_PRINTK(KERN_DEBUG, dev, "%s: " fmt, __func__, ##arg); \
1495} while (0)
1496
1497static inline bool
1498nv_two_heads(struct drm_device *dev)
1499{
1500	struct drm_nouveau_private *dev_priv = dev->dev_private;
1501	const int impl = dev->pci_device & 0x0ff0;
1502
1503	if (dev_priv->card_type >= NV_10 && impl != 0x0100 &&
1504	    impl != 0x0150 && impl != 0x01a0 && impl != 0x0200)
1505		return true;
1506
1507	return false;
1508}
1509
1510static inline bool
1511nv_gf4_disp_arch(struct drm_device *dev)
1512{
1513	return nv_two_heads(dev) && (dev->pci_device & 0x0ff0) != 0x0110;
1514}
1515
1516static inline bool
1517nv_two_reg_pll(struct drm_device *dev)
1518{
1519	struct drm_nouveau_private *dev_priv = dev->dev_private;
1520	const int impl = dev->pci_device & 0x0ff0;
1521
1522	if (impl == 0x0310 || impl == 0x0340 || dev_priv->card_type >= NV_40)
1523		return true;
1524	return false;
1525}
1526
1527static inline bool
1528nv_match_device(struct drm_device *dev, unsigned device,
1529		unsigned sub_vendor, unsigned sub_device)
1530{
1531	return dev->pdev->device == device &&
1532		dev->pdev->subsystem_vendor == sub_vendor &&
1533		dev->pdev->subsystem_device == sub_device;
1534}
1535
1536static inline void *
1537nv_engine(struct drm_device *dev, int engine)
1538{
1539	struct drm_nouveau_private *dev_priv = dev->dev_private;
1540	return (void *)dev_priv->eng[engine];
1541}
1542
1543/* returns 1 if device is one of the nv4x using the 0x4497 object class,
1544 * helpful to determine a number of other hardware features
1545 */
1546static inline int
1547nv44_graph_class(struct drm_device *dev)
1548{
1549	struct drm_nouveau_private *dev_priv = dev->dev_private;
1550
1551	if ((dev_priv->chipset & 0xf0) == 0x60)
1552		return 1;
1553
1554	return !(0x0baf & (1 << (dev_priv->chipset & 0x0f)));
1555}
1556
1557/* memory type/access flags, do not match hardware values */
1558#define NV_MEM_ACCESS_RO  1
1559#define NV_MEM_ACCESS_WO  2
1560#define NV_MEM_ACCESS_RW (NV_MEM_ACCESS_RO | NV_MEM_ACCESS_WO)
1561#define NV_MEM_ACCESS_SYS 4
1562#define NV_MEM_ACCESS_VM  8
1563
1564#define NV_MEM_TARGET_VRAM        0
1565#define NV_MEM_TARGET_PCI         1
1566#define NV_MEM_TARGET_PCI_NOSNOOP 2
1567#define NV_MEM_TARGET_VM          3
1568#define NV_MEM_TARGET_GART        4
1569
1570#define NV_MEM_TYPE_VM 0x7f
1571#define NV_MEM_COMP_VM 0x03
1572
1573/* NV_SW object class */
1574#define NV_SW                                                        0x0000506e
1575#define NV_SW_DMA_SEMAPHORE                                          0x00000060
1576#define NV_SW_SEMAPHORE_OFFSET                                       0x00000064
1577#define NV_SW_SEMAPHORE_ACQUIRE                                      0x00000068
1578#define NV_SW_SEMAPHORE_RELEASE                                      0x0000006c
1579#define NV_SW_YIELD                                                  0x00000080
1580#define NV_SW_DMA_VBLSEM                                             0x0000018c
1581#define NV_SW_VBLSEM_OFFSET                                          0x00000400
1582#define NV_SW_VBLSEM_RELEASE_VALUE                                   0x00000404
1583#define NV_SW_VBLSEM_RELEASE                                         0x00000408
1584#define NV_SW_PAGE_FLIP                                              0x00000500
1585
1586#endif /* __NOUVEAU_DRV_H__ */
1587