nouveau_drv.h revision a5cf68b04b2b8ea716cf6fd8499c1c54d05fdf5e
1/*
2 * Copyright 2005 Stephane Marchesin.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25#ifndef __NOUVEAU_DRV_H__
26#define __NOUVEAU_DRV_H__
27
28#define DRIVER_AUTHOR		"Stephane Marchesin"
29#define DRIVER_EMAIL		"dri-devel@lists.sourceforge.net"
30
31#define DRIVER_NAME		"nouveau"
32#define DRIVER_DESC		"nVidia Riva/TNT/GeForce"
33#define DRIVER_DATE		"20090420"
34
35#define DRIVER_MAJOR		0
36#define DRIVER_MINOR		0
37#define DRIVER_PATCHLEVEL	16
38
39#define NOUVEAU_FAMILY   0x0000FFFF
40#define NOUVEAU_FLAGS    0xFFFF0000
41
42#include "ttm/ttm_bo_api.h"
43#include "ttm/ttm_bo_driver.h"
44#include "ttm/ttm_placement.h"
45#include "ttm/ttm_memory.h"
46#include "ttm/ttm_module.h"
47
48struct nouveau_fpriv {
49	struct ttm_object_file *tfile;
50};
51
52#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
53
54#include "nouveau_drm.h"
55#include "nouveau_reg.h"
56#include "nouveau_bios.h"
57struct nouveau_grctx;
58
59#define MAX_NUM_DCB_ENTRIES 16
60
61#define NOUVEAU_MAX_CHANNEL_NR 128
62#define NOUVEAU_MAX_TILE_NR 15
63
64#define NV50_VM_MAX_VRAM (2*1024*1024*1024ULL)
65#define NV50_VM_BLOCK    (512*1024*1024ULL)
66#define NV50_VM_VRAM_NR  (NV50_VM_MAX_VRAM / NV50_VM_BLOCK)
67
68struct nouveau_tile_reg {
69	bool used;
70	uint32_t addr;
71	uint32_t limit;
72	uint32_t pitch;
73	struct nouveau_fence *fence;
74};
75
76struct nouveau_bo {
77	struct ttm_buffer_object bo;
78	struct ttm_placement placement;
79	u32 placements[3];
80	u32 busy_placements[3];
81	struct ttm_bo_kmap_obj kmap;
82	struct list_head head;
83
84	/* protected by ttm_bo_reserve() */
85	struct drm_file *reserved_by;
86	struct list_head entry;
87	int pbbo_index;
88	bool validate_mapped;
89
90	struct nouveau_channel *channel;
91
92	bool mappable;
93	bool no_vm;
94
95	uint32_t tile_mode;
96	uint32_t tile_flags;
97	struct nouveau_tile_reg *tile;
98
99	struct drm_gem_object *gem;
100	int pin_refcnt;
101};
102
103#define nouveau_bo_tile_layout(nvbo)				\
104	((nvbo)->tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK)
105
106static inline struct nouveau_bo *
107nouveau_bo(struct ttm_buffer_object *bo)
108{
109	return container_of(bo, struct nouveau_bo, bo);
110}
111
112static inline struct nouveau_bo *
113nouveau_gem_object(struct drm_gem_object *gem)
114{
115	return gem ? gem->driver_private : NULL;
116}
117
118/* TODO: submit equivalent to TTM generic API upstream? */
119static inline void __iomem *
120nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
121{
122	bool is_iomem;
123	void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
124						&nvbo->kmap, &is_iomem);
125	WARN_ON_ONCE(ioptr && !is_iomem);
126	return ioptr;
127}
128
129enum nouveau_flags {
130	NV_NFORCE   = 0x10000000,
131	NV_NFORCE2  = 0x20000000
132};
133
134#define NVOBJ_ENGINE_SW		0
135#define NVOBJ_ENGINE_GR		1
136#define NVOBJ_ENGINE_PPP	2
137#define NVOBJ_ENGINE_COPY	3
138#define NVOBJ_ENGINE_VP		4
139#define NVOBJ_ENGINE_CRYPT      5
140#define NVOBJ_ENGINE_BSP	6
141#define NVOBJ_ENGINE_DISPLAY	0xcafe0001
142#define NVOBJ_ENGINE_INT	0xdeadbeef
143
144#define NVOBJ_FLAG_ZERO_ALLOC		(1 << 1)
145#define NVOBJ_FLAG_ZERO_FREE		(1 << 2)
146struct nouveau_gpuobj {
147	struct drm_device *dev;
148	struct kref refcount;
149	struct list_head list;
150
151	struct drm_mm_node *im_pramin;
152	struct nouveau_bo *im_backing;
153	uint32_t *im_backing_suspend;
154	int im_bound;
155
156	uint32_t flags;
157
158	u32 size;
159	u32 pinst;
160	u32 cinst;
161	u64 vinst;
162
163	uint32_t engine;
164	uint32_t class;
165
166	void (*dtor)(struct drm_device *, struct nouveau_gpuobj *);
167	void *priv;
168};
169
170struct nouveau_page_flip_state {
171	struct list_head head;
172	struct drm_pending_vblank_event *event;
173	int crtc, bpp, pitch, x, y;
174	uint64_t offset;
175};
176
177enum nouveau_channel_mutex_class {
178	NOUVEAU_UCHANNEL_MUTEX,
179	NOUVEAU_KCHANNEL_MUTEX
180};
181
182struct nouveau_channel {
183	struct drm_device *dev;
184	int id;
185
186	/* references to the channel data structure */
187	struct kref ref;
188	/* users of the hardware channel resources, the hardware
189	 * context will be kicked off when it reaches zero. */
190	atomic_t users;
191	struct mutex mutex;
192
193	/* owner of this fifo */
194	struct drm_file *file_priv;
195	/* mapping of the fifo itself */
196	struct drm_local_map *map;
197
198	/* mapping of the regs controling the fifo */
199	void __iomem *user;
200	uint32_t user_get;
201	uint32_t user_put;
202
203	/* Fencing */
204	struct {
205		/* lock protects the pending list only */
206		spinlock_t lock;
207		struct list_head pending;
208		uint32_t sequence;
209		uint32_t sequence_ack;
210		atomic_t last_sequence_irq;
211	} fence;
212
213	/* DMA push buffer */
214	struct nouveau_gpuobj *pushbuf;
215	struct nouveau_bo     *pushbuf_bo;
216	uint32_t               pushbuf_base;
217
218	/* Notifier memory */
219	struct nouveau_bo *notifier_bo;
220	struct drm_mm notifier_heap;
221
222	/* PFIFO context */
223	struct nouveau_gpuobj *ramfc;
224	struct nouveau_gpuobj *cache;
225
226	/* PGRAPH context */
227	/* XXX may be merge 2 pointers as private data ??? */
228	struct nouveau_gpuobj *ramin_grctx;
229	struct nouveau_gpuobj *crypt_ctx;
230	void *pgraph_ctx;
231
232	/* NV50 VM */
233	struct nouveau_gpuobj *vm_pd;
234	struct nouveau_gpuobj *vm_gart_pt;
235	struct nouveau_gpuobj *vm_vram_pt[NV50_VM_VRAM_NR];
236
237	/* Objects */
238	struct nouveau_gpuobj *ramin; /* Private instmem */
239	struct drm_mm          ramin_heap; /* Private PRAMIN heap */
240	struct nouveau_ramht  *ramht; /* Hash table */
241
242	/* GPU object info for stuff used in-kernel (mm_enabled) */
243	uint32_t m2mf_ntfy;
244	uint32_t vram_handle;
245	uint32_t gart_handle;
246	bool accel_done;
247
248	/* Push buffer state (only for drm's channel on !mm_enabled) */
249	struct {
250		int max;
251		int free;
252		int cur;
253		int put;
254		/* access via pushbuf_bo */
255
256		int ib_base;
257		int ib_max;
258		int ib_free;
259		int ib_put;
260	} dma;
261
262	uint32_t sw_subchannel[8];
263
264	struct {
265		struct nouveau_gpuobj *vblsem;
266		uint32_t vblsem_head;
267		uint32_t vblsem_offset;
268		uint32_t vblsem_rval;
269		struct list_head vbl_wait;
270		struct list_head flip;
271	} nvsw;
272
273	struct {
274		bool active;
275		char name[32];
276		struct drm_info_list info;
277	} debugfs;
278};
279
280struct nouveau_instmem_engine {
281	void	*priv;
282
283	int	(*init)(struct drm_device *dev);
284	void	(*takedown)(struct drm_device *dev);
285	int	(*suspend)(struct drm_device *dev);
286	void	(*resume)(struct drm_device *dev);
287
288	int	(*populate)(struct drm_device *, struct nouveau_gpuobj *,
289			    u32 *size, u32 align);
290	void	(*clear)(struct drm_device *, struct nouveau_gpuobj *);
291	int	(*bind)(struct drm_device *, struct nouveau_gpuobj *);
292	int	(*unbind)(struct drm_device *, struct nouveau_gpuobj *);
293	void	(*flush)(struct drm_device *);
294};
295
296struct nouveau_mc_engine {
297	int  (*init)(struct drm_device *dev);
298	void (*takedown)(struct drm_device *dev);
299};
300
301struct nouveau_timer_engine {
302	int      (*init)(struct drm_device *dev);
303	void     (*takedown)(struct drm_device *dev);
304	uint64_t (*read)(struct drm_device *dev);
305};
306
307struct nouveau_fb_engine {
308	int num_tiles;
309
310	int  (*init)(struct drm_device *dev);
311	void (*takedown)(struct drm_device *dev);
312
313	void (*init_tile_region)(struct drm_device *dev, int i,
314				 uint32_t addr, uint32_t size,
315				 uint32_t pitch, uint32_t flags);
316	void (*set_tile_region)(struct drm_device *dev, int i);
317	void (*free_tile_region)(struct drm_device *dev, int i);
318};
319
320struct nouveau_fifo_engine {
321	int  channels;
322
323	struct nouveau_gpuobj *playlist[2];
324	int cur_playlist;
325
326	int  (*init)(struct drm_device *);
327	void (*takedown)(struct drm_device *);
328
329	void (*disable)(struct drm_device *);
330	void (*enable)(struct drm_device *);
331	bool (*reassign)(struct drm_device *, bool enable);
332	bool (*cache_pull)(struct drm_device *dev, bool enable);
333
334	int  (*channel_id)(struct drm_device *);
335
336	int  (*create_context)(struct nouveau_channel *);
337	void (*destroy_context)(struct nouveau_channel *);
338	int  (*load_context)(struct nouveau_channel *);
339	int  (*unload_context)(struct drm_device *);
340	void (*tlb_flush)(struct drm_device *dev);
341};
342
343struct nouveau_pgraph_engine {
344	bool accel_blocked;
345	bool registered;
346	int grctx_size;
347
348	/* NV2x/NV3x context table (0x400780) */
349	struct nouveau_gpuobj *ctx_table;
350
351	int  (*init)(struct drm_device *);
352	void (*takedown)(struct drm_device *);
353
354	void (*fifo_access)(struct drm_device *, bool);
355
356	struct nouveau_channel *(*channel)(struct drm_device *);
357	int  (*create_context)(struct nouveau_channel *);
358	void (*destroy_context)(struct nouveau_channel *);
359	int  (*load_context)(struct nouveau_channel *);
360	int  (*unload_context)(struct drm_device *);
361	void (*tlb_flush)(struct drm_device *dev);
362
363	void (*set_tile_region)(struct drm_device *dev, int i);
364};
365
366struct nouveau_display_engine {
367	int (*early_init)(struct drm_device *);
368	void (*late_takedown)(struct drm_device *);
369	int (*create)(struct drm_device *);
370	int (*init)(struct drm_device *);
371	void (*destroy)(struct drm_device *);
372};
373
374struct nouveau_gpio_engine {
375	int  (*init)(struct drm_device *);
376	void (*takedown)(struct drm_device *);
377
378	int  (*get)(struct drm_device *, enum dcb_gpio_tag);
379	int  (*set)(struct drm_device *, enum dcb_gpio_tag, int state);
380
381	void (*irq_enable)(struct drm_device *, enum dcb_gpio_tag, bool on);
382};
383
384struct nouveau_pm_voltage_level {
385	u8 voltage;
386	u8 vid;
387};
388
389struct nouveau_pm_voltage {
390	bool supported;
391	u8 vid_mask;
392
393	struct nouveau_pm_voltage_level *level;
394	int nr_level;
395};
396
397#define NOUVEAU_PM_MAX_LEVEL 8
398struct nouveau_pm_level {
399	struct device_attribute dev_attr;
400	char name[32];
401	int id;
402
403	u32 core;
404	u32 memory;
405	u32 shader;
406	u32 unk05;
407
408	u8 voltage;
409	u8 fanspeed;
410
411	u16 memscript;
412};
413
414struct nouveau_pm_temp_sensor_constants {
415	u16 offset_constant;
416	s16 offset_mult;
417	u16 offset_div;
418	u16 slope_mult;
419	u16 slope_div;
420};
421
422struct nouveau_pm_threshold_temp {
423	s16 critical;
424	s16 down_clock;
425	s16 fan_boost;
426};
427
428struct nouveau_pm_memtiming {
429	u32 reg_100220;
430	u32 reg_100224;
431	u32 reg_100228;
432	u32 reg_10022c;
433	u32 reg_100230;
434	u32 reg_100234;
435	u32 reg_100238;
436	u32 reg_10023c;
437};
438
439struct nouveau_pm_memtimings {
440	bool supported;
441	struct nouveau_pm_memtiming *timing;
442	int nr_timing;
443};
444
445struct nouveau_pm_engine {
446	struct nouveau_pm_voltage voltage;
447	struct nouveau_pm_level perflvl[NOUVEAU_PM_MAX_LEVEL];
448	int nr_perflvl;
449	struct nouveau_pm_memtimings memtimings;
450	struct nouveau_pm_temp_sensor_constants sensor_constants;
451	struct nouveau_pm_threshold_temp threshold_temp;
452
453	struct nouveau_pm_level boot;
454	struct nouveau_pm_level *cur;
455
456	struct device *hwmon;
457	struct notifier_block acpi_nb;
458
459	int (*clock_get)(struct drm_device *, u32 id);
460	void *(*clock_pre)(struct drm_device *, struct nouveau_pm_level *,
461			   u32 id, int khz);
462	void (*clock_set)(struct drm_device *, void *);
463	int (*voltage_get)(struct drm_device *);
464	int (*voltage_set)(struct drm_device *, int voltage);
465	int (*fanspeed_get)(struct drm_device *);
466	int (*fanspeed_set)(struct drm_device *, int fanspeed);
467	int (*temp_get)(struct drm_device *);
468};
469
470struct nouveau_crypt_engine {
471	bool registered;
472
473	int  (*init)(struct drm_device *);
474	void (*takedown)(struct drm_device *);
475	int  (*create_context)(struct nouveau_channel *);
476	void (*destroy_context)(struct nouveau_channel *);
477	void (*tlb_flush)(struct drm_device *dev);
478};
479
480struct nouveau_engine {
481	struct nouveau_instmem_engine instmem;
482	struct nouveau_mc_engine      mc;
483	struct nouveau_timer_engine   timer;
484	struct nouveau_fb_engine      fb;
485	struct nouveau_pgraph_engine  graph;
486	struct nouveau_fifo_engine    fifo;
487	struct nouveau_display_engine display;
488	struct nouveau_gpio_engine    gpio;
489	struct nouveau_pm_engine      pm;
490	struct nouveau_crypt_engine   crypt;
491};
492
493struct nouveau_pll_vals {
494	union {
495		struct {
496#ifdef __BIG_ENDIAN
497			uint8_t N1, M1, N2, M2;
498#else
499			uint8_t M1, N1, M2, N2;
500#endif
501		};
502		struct {
503			uint16_t NM1, NM2;
504		} __attribute__((packed));
505	};
506	int log2P;
507
508	int refclk;
509};
510
511enum nv04_fp_display_regs {
512	FP_DISPLAY_END,
513	FP_TOTAL,
514	FP_CRTC,
515	FP_SYNC_START,
516	FP_SYNC_END,
517	FP_VALID_START,
518	FP_VALID_END
519};
520
521struct nv04_crtc_reg {
522	unsigned char MiscOutReg;
523	uint8_t CRTC[0xa0];
524	uint8_t CR58[0x10];
525	uint8_t Sequencer[5];
526	uint8_t Graphics[9];
527	uint8_t Attribute[21];
528	unsigned char DAC[768];
529
530	/* PCRTC regs */
531	uint32_t fb_start;
532	uint32_t crtc_cfg;
533	uint32_t cursor_cfg;
534	uint32_t gpio_ext;
535	uint32_t crtc_830;
536	uint32_t crtc_834;
537	uint32_t crtc_850;
538	uint32_t crtc_eng_ctrl;
539
540	/* PRAMDAC regs */
541	uint32_t nv10_cursync;
542	struct nouveau_pll_vals pllvals;
543	uint32_t ramdac_gen_ctrl;
544	uint32_t ramdac_630;
545	uint32_t ramdac_634;
546	uint32_t tv_setup;
547	uint32_t tv_vtotal;
548	uint32_t tv_vskew;
549	uint32_t tv_vsync_delay;
550	uint32_t tv_htotal;
551	uint32_t tv_hskew;
552	uint32_t tv_hsync_delay;
553	uint32_t tv_hsync_delay2;
554	uint32_t fp_horiz_regs[7];
555	uint32_t fp_vert_regs[7];
556	uint32_t dither;
557	uint32_t fp_control;
558	uint32_t dither_regs[6];
559	uint32_t fp_debug_0;
560	uint32_t fp_debug_1;
561	uint32_t fp_debug_2;
562	uint32_t fp_margin_color;
563	uint32_t ramdac_8c0;
564	uint32_t ramdac_a20;
565	uint32_t ramdac_a24;
566	uint32_t ramdac_a34;
567	uint32_t ctv_regs[38];
568};
569
570struct nv04_output_reg {
571	uint32_t output;
572	int head;
573};
574
575struct nv04_mode_state {
576	struct nv04_crtc_reg crtc_reg[2];
577	uint32_t pllsel;
578	uint32_t sel_clk;
579};
580
581enum nouveau_card_type {
582	NV_04      = 0x00,
583	NV_10      = 0x10,
584	NV_20      = 0x20,
585	NV_30      = 0x30,
586	NV_40      = 0x40,
587	NV_50      = 0x50,
588	NV_C0      = 0xc0,
589};
590
591struct drm_nouveau_private {
592	struct drm_device *dev;
593
594	/* the card type, takes NV_* as values */
595	enum nouveau_card_type card_type;
596	/* exact chipset, derived from NV_PMC_BOOT_0 */
597	int chipset;
598	int flags;
599
600	void __iomem *mmio;
601
602	spinlock_t ramin_lock;
603	void __iomem *ramin;
604	u32 ramin_size;
605	u32 ramin_base;
606	bool ramin_available;
607	struct drm_mm ramin_heap;
608	struct list_head gpuobj_list;
609	struct list_head classes;
610
611	struct nouveau_bo *vga_ram;
612
613	/* interrupt handling */
614	bool msi_enabled;
615	struct workqueue_struct *wq;
616	struct work_struct irq_work;
617	struct work_struct hpd_work;
618
619	struct {
620		spinlock_t lock;
621		uint32_t hpd0_bits;
622		uint32_t hpd1_bits;
623	} hpd_state;
624
625	struct list_head vbl_waiting;
626
627	struct {
628		struct drm_global_reference mem_global_ref;
629		struct ttm_bo_global_ref bo_global_ref;
630		struct ttm_bo_device bdev;
631		atomic_t validate_sequence;
632	} ttm;
633
634	struct {
635		spinlock_t lock;
636		struct drm_mm heap;
637		struct nouveau_bo *bo;
638	} fence;
639
640	struct {
641		spinlock_t lock;
642		struct nouveau_channel *ptr[NOUVEAU_MAX_CHANNEL_NR];
643	} channels;
644
645	struct nouveau_engine engine;
646	struct nouveau_channel *channel;
647
648	/* For PFIFO and PGRAPH. */
649	spinlock_t context_switch_lock;
650
651	/* RAMIN configuration, RAMFC, RAMHT and RAMRO offsets */
652	struct nouveau_ramht  *ramht;
653	struct nouveau_gpuobj *ramfc;
654	struct nouveau_gpuobj *ramro;
655
656	uint32_t ramin_rsvd_vram;
657
658	struct {
659		enum {
660			NOUVEAU_GART_NONE = 0,
661			NOUVEAU_GART_AGP,
662			NOUVEAU_GART_SGDMA
663		} type;
664		uint64_t aper_base;
665		uint64_t aper_size;
666		uint64_t aper_free;
667
668		struct nouveau_gpuobj *sg_ctxdma;
669		struct page *sg_dummy_page;
670		dma_addr_t sg_dummy_bus;
671	} gart_info;
672
673	/* nv10-nv40 tiling regions */
674	struct {
675		struct nouveau_tile_reg reg[NOUVEAU_MAX_TILE_NR];
676		spinlock_t lock;
677	} tile;
678
679	/* VRAM/fb configuration */
680	uint64_t vram_size;
681	uint64_t vram_sys_base;
682	u32 vram_rblock_size;
683
684	uint64_t fb_phys;
685	uint64_t fb_available_size;
686	uint64_t fb_mappable_pages;
687	uint64_t fb_aper_free;
688	int fb_mtrr;
689
690	/* G8x/G9x virtual address space */
691	uint64_t vm_gart_base;
692	uint64_t vm_gart_size;
693	uint64_t vm_vram_base;
694	uint64_t vm_vram_size;
695	uint64_t vm_end;
696	struct nouveau_gpuobj *vm_vram_pt[NV50_VM_VRAM_NR];
697	int vm_vram_pt_nr;
698
699	struct nvbios vbios;
700
701	struct nv04_mode_state mode_reg;
702	struct nv04_mode_state saved_reg;
703	uint32_t saved_vga_font[4][16384];
704	uint32_t crtc_owner;
705	uint32_t dac_users[4];
706
707	struct nouveau_suspend_resume {
708		uint32_t *ramin_copy;
709	} susres;
710
711	struct backlight_device *backlight;
712
713	struct nouveau_channel *evo;
714	u32 evo_alloc;
715	struct {
716		struct dcb_entry *dcb;
717		u16 script;
718		u32 pclk;
719	} evo_irq;
720
721	struct {
722		struct dentry *channel_root;
723	} debugfs;
724
725	struct nouveau_fbdev *nfbdev;
726	struct apertures_struct *apertures;
727};
728
729static inline struct drm_nouveau_private *
730nouveau_private(struct drm_device *dev)
731{
732	return dev->dev_private;
733}
734
735static inline struct drm_nouveau_private *
736nouveau_bdev(struct ttm_bo_device *bd)
737{
738	return container_of(bd, struct drm_nouveau_private, ttm.bdev);
739}
740
741static inline int
742nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
743{
744	struct nouveau_bo *prev;
745
746	if (!pnvbo)
747		return -EINVAL;
748	prev = *pnvbo;
749
750	*pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
751	if (prev) {
752		struct ttm_buffer_object *bo = &prev->bo;
753
754		ttm_bo_unref(&bo);
755	}
756
757	return 0;
758}
759
760/* nouveau_drv.c */
761extern int nouveau_agpmode;
762extern int nouveau_duallink;
763extern int nouveau_uscript_lvds;
764extern int nouveau_uscript_tmds;
765extern int nouveau_vram_pushbuf;
766extern int nouveau_vram_notify;
767extern int nouveau_fbpercrtc;
768extern int nouveau_tv_disable;
769extern char *nouveau_tv_norm;
770extern int nouveau_reg_debug;
771extern char *nouveau_vbios;
772extern int nouveau_ignorelid;
773extern int nouveau_nofbaccel;
774extern int nouveau_noaccel;
775extern int nouveau_force_post;
776extern int nouveau_override_conntype;
777extern char *nouveau_perflvl;
778extern int nouveau_perflvl_wr;
779extern int nouveau_msi;
780
781extern int nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state);
782extern int nouveau_pci_resume(struct pci_dev *pdev);
783
784/* nouveau_state.c */
785extern void nouveau_preclose(struct drm_device *dev, struct drm_file *);
786extern int  nouveau_load(struct drm_device *, unsigned long flags);
787extern int  nouveau_firstopen(struct drm_device *);
788extern void nouveau_lastclose(struct drm_device *);
789extern int  nouveau_unload(struct drm_device *);
790extern int  nouveau_ioctl_getparam(struct drm_device *, void *data,
791				   struct drm_file *);
792extern int  nouveau_ioctl_setparam(struct drm_device *, void *data,
793				   struct drm_file *);
794extern bool nouveau_wait_until(struct drm_device *, uint64_t timeout,
795			       uint32_t reg, uint32_t mask, uint32_t val);
796extern bool nouveau_wait_for_idle(struct drm_device *);
797extern int  nouveau_card_init(struct drm_device *);
798
799/* nouveau_mem.c */
800extern int  nouveau_mem_vram_init(struct drm_device *);
801extern void nouveau_mem_vram_fini(struct drm_device *);
802extern int  nouveau_mem_gart_init(struct drm_device *);
803extern void nouveau_mem_gart_fini(struct drm_device *);
804extern int  nouveau_mem_init_agp(struct drm_device *);
805extern int  nouveau_mem_reset_agp(struct drm_device *);
806extern void nouveau_mem_close(struct drm_device *);
807extern struct nouveau_tile_reg *nv10_mem_set_tiling(
808	struct drm_device *dev, uint32_t addr, uint32_t size,
809	uint32_t pitch, uint32_t flags);
810extern void nv10_mem_put_tile_region(struct drm_device *dev,
811				     struct nouveau_tile_reg *tile,
812				     struct nouveau_fence *fence);
813extern int  nv50_mem_vm_bind_linear(struct drm_device *, uint64_t virt,
814				    uint32_t size, uint32_t flags,
815				    uint64_t phys);
816extern void nv50_mem_vm_unbind(struct drm_device *, uint64_t virt,
817			       uint32_t size);
818
819/* nouveau_notifier.c */
820extern int  nouveau_notifier_init_channel(struct nouveau_channel *);
821extern void nouveau_notifier_takedown_channel(struct nouveau_channel *);
822extern int  nouveau_notifier_alloc(struct nouveau_channel *, uint32_t handle,
823				   int cout, uint32_t *offset);
824extern int  nouveau_notifier_offset(struct nouveau_gpuobj *, uint32_t *);
825extern int  nouveau_ioctl_notifier_alloc(struct drm_device *, void *data,
826					 struct drm_file *);
827extern int  nouveau_ioctl_notifier_free(struct drm_device *, void *data,
828					struct drm_file *);
829
830/* nouveau_channel.c */
831extern struct drm_ioctl_desc nouveau_ioctls[];
832extern int nouveau_max_ioctl;
833extern void nouveau_channel_cleanup(struct drm_device *, struct drm_file *);
834extern int  nouveau_channel_alloc(struct drm_device *dev,
835				  struct nouveau_channel **chan,
836				  struct drm_file *file_priv,
837				  uint32_t fb_ctxdma, uint32_t tt_ctxdma);
838extern struct nouveau_channel *
839nouveau_channel_get_unlocked(struct nouveau_channel *);
840extern struct nouveau_channel *
841nouveau_channel_get(struct drm_device *, struct drm_file *, int id);
842extern void nouveau_channel_put_unlocked(struct nouveau_channel **);
843extern void nouveau_channel_put(struct nouveau_channel **);
844extern void nouveau_channel_ref(struct nouveau_channel *chan,
845				struct nouveau_channel **pchan);
846
847/* nouveau_object.c */
848#define NVOBJ_CLASS(d,c,e) do {                                                \
849	int ret = nouveau_gpuobj_class_new((d), (c), NVOBJ_ENGINE_##e);        \
850	if (ret)                                                               \
851		return ret;                                                    \
852} while(0)
853
854#define NVOBJ_MTHD(d,c,m,e) do {                                               \
855	int ret = nouveau_gpuobj_mthd_new((d), (c), (m), (e));                 \
856	if (ret)                                                               \
857		return ret;                                                    \
858} while(0)
859
860extern int  nouveau_gpuobj_early_init(struct drm_device *);
861extern int  nouveau_gpuobj_init(struct drm_device *);
862extern void nouveau_gpuobj_takedown(struct drm_device *);
863extern int  nouveau_gpuobj_suspend(struct drm_device *dev);
864extern void nouveau_gpuobj_suspend_cleanup(struct drm_device *dev);
865extern void nouveau_gpuobj_resume(struct drm_device *dev);
866extern int  nouveau_gpuobj_class_new(struct drm_device *, u32 class, u32 eng);
867extern int  nouveau_gpuobj_mthd_new(struct drm_device *, u32 class, u32 mthd,
868				    int (*exec)(struct nouveau_channel *,
869					        u32 class, u32 mthd, u32 data));
870extern int  nouveau_gpuobj_mthd_call(struct nouveau_channel *, u32, u32, u32);
871extern int nouveau_gpuobj_channel_init(struct nouveau_channel *,
872				       uint32_t vram_h, uint32_t tt_h);
873extern void nouveau_gpuobj_channel_takedown(struct nouveau_channel *);
874extern int nouveau_gpuobj_new(struct drm_device *, struct nouveau_channel *,
875			      uint32_t size, int align, uint32_t flags,
876			      struct nouveau_gpuobj **);
877extern void nouveau_gpuobj_ref(struct nouveau_gpuobj *,
878			       struct nouveau_gpuobj **);
879extern int nouveau_gpuobj_new_fake(struct drm_device *, u32 pinst, u64 vinst,
880				   u32 size, u32 flags,
881				   struct nouveau_gpuobj **);
882extern int nouveau_gpuobj_dma_new(struct nouveau_channel *, int class,
883				  uint64_t offset, uint64_t size, int access,
884				  int target, struct nouveau_gpuobj **);
885extern int nouveau_gpuobj_gart_dma_new(struct nouveau_channel *,
886				       uint64_t offset, uint64_t size,
887				       int access, struct nouveau_gpuobj **,
888				       uint32_t *o_ret);
889extern int nouveau_gpuobj_gr_new(struct nouveau_channel *, int class,
890				 struct nouveau_gpuobj **);
891extern int nouveau_ioctl_grobj_alloc(struct drm_device *, void *data,
892				     struct drm_file *);
893extern int nouveau_ioctl_gpuobj_free(struct drm_device *, void *data,
894				     struct drm_file *);
895
896/* nouveau_irq.c */
897extern int         nouveau_irq_init(struct drm_device *);
898extern void        nouveau_irq_fini(struct drm_device *);
899extern irqreturn_t nouveau_irq_handler(DRM_IRQ_ARGS);
900extern void        nouveau_irq_preinstall(struct drm_device *);
901extern int         nouveau_irq_postinstall(struct drm_device *);
902extern void        nouveau_irq_uninstall(struct drm_device *);
903
904/* nouveau_sgdma.c */
905extern int nouveau_sgdma_init(struct drm_device *);
906extern void nouveau_sgdma_takedown(struct drm_device *);
907extern int nouveau_sgdma_get_page(struct drm_device *, uint32_t offset,
908				  uint32_t *page);
909extern struct ttm_backend *nouveau_sgdma_init_ttm(struct drm_device *);
910
911/* nouveau_debugfs.c */
912#if defined(CONFIG_DRM_NOUVEAU_DEBUG)
913extern int  nouveau_debugfs_init(struct drm_minor *);
914extern void nouveau_debugfs_takedown(struct drm_minor *);
915extern int  nouveau_debugfs_channel_init(struct nouveau_channel *);
916extern void nouveau_debugfs_channel_fini(struct nouveau_channel *);
917#else
918static inline int
919nouveau_debugfs_init(struct drm_minor *minor)
920{
921	return 0;
922}
923
924static inline void nouveau_debugfs_takedown(struct drm_minor *minor)
925{
926}
927
928static inline int
929nouveau_debugfs_channel_init(struct nouveau_channel *chan)
930{
931	return 0;
932}
933
934static inline void
935nouveau_debugfs_channel_fini(struct nouveau_channel *chan)
936{
937}
938#endif
939
940/* nouveau_dma.c */
941extern void nouveau_dma_pre_init(struct nouveau_channel *);
942extern int  nouveau_dma_init(struct nouveau_channel *);
943extern int  nouveau_dma_wait(struct nouveau_channel *, int slots, int size);
944
945/* nouveau_acpi.c */
946#define ROM_BIOS_PAGE 4096
947#if defined(CONFIG_ACPI)
948void nouveau_register_dsm_handler(void);
949void nouveau_unregister_dsm_handler(void);
950int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len);
951bool nouveau_acpi_rom_supported(struct pci_dev *pdev);
952int nouveau_acpi_edid(struct drm_device *, struct drm_connector *);
953#else
954static inline void nouveau_register_dsm_handler(void) {}
955static inline void nouveau_unregister_dsm_handler(void) {}
956static inline bool nouveau_acpi_rom_supported(struct pci_dev *pdev) { return false; }
957static inline int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len) { return -EINVAL; }
958static inline int nouveau_acpi_edid(struct drm_device *dev, struct drm_connector *connector) { return -EINVAL; }
959#endif
960
961/* nouveau_backlight.c */
962#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
963extern int nouveau_backlight_init(struct drm_device *);
964extern void nouveau_backlight_exit(struct drm_device *);
965#else
966static inline int nouveau_backlight_init(struct drm_device *dev)
967{
968	return 0;
969}
970
971static inline void nouveau_backlight_exit(struct drm_device *dev) { }
972#endif
973
974/* nouveau_bios.c */
975extern int nouveau_bios_init(struct drm_device *);
976extern void nouveau_bios_takedown(struct drm_device *dev);
977extern int nouveau_run_vbios_init(struct drm_device *);
978extern void nouveau_bios_run_init_table(struct drm_device *, uint16_t table,
979					struct dcb_entry *);
980extern struct dcb_gpio_entry *nouveau_bios_gpio_entry(struct drm_device *,
981						      enum dcb_gpio_tag);
982extern struct dcb_connector_table_entry *
983nouveau_bios_connector_entry(struct drm_device *, int index);
984extern u32 get_pll_register(struct drm_device *, enum pll_types);
985extern int get_pll_limits(struct drm_device *, uint32_t limit_match,
986			  struct pll_lims *);
987extern int nouveau_bios_run_display_table(struct drm_device *,
988					  struct dcb_entry *,
989					  uint32_t script, int pxclk);
990extern void *nouveau_bios_dp_table(struct drm_device *, struct dcb_entry *,
991				   int *length);
992extern bool nouveau_bios_fp_mode(struct drm_device *, struct drm_display_mode *);
993extern uint8_t *nouveau_bios_embedded_edid(struct drm_device *);
994extern int nouveau_bios_parse_lvds_table(struct drm_device *, int pxclk,
995					 bool *dl, bool *if_is_24bit);
996extern int run_tmds_table(struct drm_device *, struct dcb_entry *,
997			  int head, int pxclk);
998extern int call_lvds_script(struct drm_device *, struct dcb_entry *, int head,
999			    enum LVDS_script, int pxclk);
1000
1001/* nouveau_ttm.c */
1002int nouveau_ttm_global_init(struct drm_nouveau_private *);
1003void nouveau_ttm_global_release(struct drm_nouveau_private *);
1004int nouveau_ttm_mmap(struct file *, struct vm_area_struct *);
1005
1006/* nouveau_dp.c */
1007int nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
1008		     uint8_t *data, int data_nr);
1009bool nouveau_dp_detect(struct drm_encoder *);
1010bool nouveau_dp_link_train(struct drm_encoder *);
1011
1012/* nv04_fb.c */
1013extern int  nv04_fb_init(struct drm_device *);
1014extern void nv04_fb_takedown(struct drm_device *);
1015
1016/* nv10_fb.c */
1017extern int  nv10_fb_init(struct drm_device *);
1018extern void nv10_fb_takedown(struct drm_device *);
1019extern void nv10_fb_init_tile_region(struct drm_device *dev, int i,
1020				     uint32_t addr, uint32_t size,
1021				     uint32_t pitch, uint32_t flags);
1022extern void nv10_fb_set_tile_region(struct drm_device *dev, int i);
1023extern void nv10_fb_free_tile_region(struct drm_device *dev, int i);
1024
1025/* nv30_fb.c */
1026extern int  nv30_fb_init(struct drm_device *);
1027extern void nv30_fb_takedown(struct drm_device *);
1028extern void nv30_fb_init_tile_region(struct drm_device *dev, int i,
1029				     uint32_t addr, uint32_t size,
1030				     uint32_t pitch, uint32_t flags);
1031extern void nv30_fb_free_tile_region(struct drm_device *dev, int i);
1032
1033/* nv40_fb.c */
1034extern int  nv40_fb_init(struct drm_device *);
1035extern void nv40_fb_takedown(struct drm_device *);
1036extern void nv40_fb_set_tile_region(struct drm_device *dev, int i);
1037
1038/* nv50_fb.c */
1039extern int  nv50_fb_init(struct drm_device *);
1040extern void nv50_fb_takedown(struct drm_device *);
1041extern void nv50_fb_vm_trap(struct drm_device *, int display, const char *);
1042
1043/* nvc0_fb.c */
1044extern int  nvc0_fb_init(struct drm_device *);
1045extern void nvc0_fb_takedown(struct drm_device *);
1046
1047/* nv04_fifo.c */
1048extern int  nv04_fifo_init(struct drm_device *);
1049extern void nv04_fifo_disable(struct drm_device *);
1050extern void nv04_fifo_enable(struct drm_device *);
1051extern bool nv04_fifo_reassign(struct drm_device *, bool);
1052extern bool nv04_fifo_cache_pull(struct drm_device *, bool);
1053extern int  nv04_fifo_channel_id(struct drm_device *);
1054extern int  nv04_fifo_create_context(struct nouveau_channel *);
1055extern void nv04_fifo_destroy_context(struct nouveau_channel *);
1056extern int  nv04_fifo_load_context(struct nouveau_channel *);
1057extern int  nv04_fifo_unload_context(struct drm_device *);
1058
1059/* nv10_fifo.c */
1060extern int  nv10_fifo_init(struct drm_device *);
1061extern int  nv10_fifo_channel_id(struct drm_device *);
1062extern int  nv10_fifo_create_context(struct nouveau_channel *);
1063extern int  nv10_fifo_load_context(struct nouveau_channel *);
1064extern int  nv10_fifo_unload_context(struct drm_device *);
1065
1066/* nv40_fifo.c */
1067extern int  nv40_fifo_init(struct drm_device *);
1068extern int  nv40_fifo_create_context(struct nouveau_channel *);
1069extern int  nv40_fifo_load_context(struct nouveau_channel *);
1070extern int  nv40_fifo_unload_context(struct drm_device *);
1071
1072/* nv50_fifo.c */
1073extern int  nv50_fifo_init(struct drm_device *);
1074extern void nv50_fifo_takedown(struct drm_device *);
1075extern int  nv50_fifo_channel_id(struct drm_device *);
1076extern int  nv50_fifo_create_context(struct nouveau_channel *);
1077extern void nv50_fifo_destroy_context(struct nouveau_channel *);
1078extern int  nv50_fifo_load_context(struct nouveau_channel *);
1079extern int  nv50_fifo_unload_context(struct drm_device *);
1080extern void nv50_fifo_tlb_flush(struct drm_device *dev);
1081
1082/* nvc0_fifo.c */
1083extern int  nvc0_fifo_init(struct drm_device *);
1084extern void nvc0_fifo_takedown(struct drm_device *);
1085extern void nvc0_fifo_disable(struct drm_device *);
1086extern void nvc0_fifo_enable(struct drm_device *);
1087extern bool nvc0_fifo_reassign(struct drm_device *, bool);
1088extern bool nvc0_fifo_cache_pull(struct drm_device *, bool);
1089extern int  nvc0_fifo_channel_id(struct drm_device *);
1090extern int  nvc0_fifo_create_context(struct nouveau_channel *);
1091extern void nvc0_fifo_destroy_context(struct nouveau_channel *);
1092extern int  nvc0_fifo_load_context(struct nouveau_channel *);
1093extern int  nvc0_fifo_unload_context(struct drm_device *);
1094
1095/* nv04_graph.c */
1096extern int  nv04_graph_init(struct drm_device *);
1097extern void nv04_graph_takedown(struct drm_device *);
1098extern void nv04_graph_fifo_access(struct drm_device *, bool);
1099extern struct nouveau_channel *nv04_graph_channel(struct drm_device *);
1100extern int  nv04_graph_create_context(struct nouveau_channel *);
1101extern void nv04_graph_destroy_context(struct nouveau_channel *);
1102extern int  nv04_graph_load_context(struct nouveau_channel *);
1103extern int  nv04_graph_unload_context(struct drm_device *);
1104extern void nv04_graph_context_switch(struct drm_device *);
1105extern int  nv04_graph_mthd_page_flip(struct nouveau_channel *chan,
1106				      u32 class, u32 mthd, u32 data);
1107
1108/* nv10_graph.c */
1109extern int  nv10_graph_init(struct drm_device *);
1110extern void nv10_graph_takedown(struct drm_device *);
1111extern struct nouveau_channel *nv10_graph_channel(struct drm_device *);
1112extern int  nv10_graph_create_context(struct nouveau_channel *);
1113extern void nv10_graph_destroy_context(struct nouveau_channel *);
1114extern int  nv10_graph_load_context(struct nouveau_channel *);
1115extern int  nv10_graph_unload_context(struct drm_device *);
1116extern void nv10_graph_context_switch(struct drm_device *);
1117extern void nv10_graph_set_tile_region(struct drm_device *dev, int i);
1118
1119/* nv20_graph.c */
1120extern int  nv20_graph_create_context(struct nouveau_channel *);
1121extern void nv20_graph_destroy_context(struct nouveau_channel *);
1122extern int  nv20_graph_load_context(struct nouveau_channel *);
1123extern int  nv20_graph_unload_context(struct drm_device *);
1124extern int  nv20_graph_init(struct drm_device *);
1125extern void nv20_graph_takedown(struct drm_device *);
1126extern int  nv30_graph_init(struct drm_device *);
1127extern void nv20_graph_set_tile_region(struct drm_device *dev, int i);
1128
1129/* nv40_graph.c */
1130extern int  nv40_graph_init(struct drm_device *);
1131extern void nv40_graph_takedown(struct drm_device *);
1132extern struct nouveau_channel *nv40_graph_channel(struct drm_device *);
1133extern int  nv40_graph_create_context(struct nouveau_channel *);
1134extern void nv40_graph_destroy_context(struct nouveau_channel *);
1135extern int  nv40_graph_load_context(struct nouveau_channel *);
1136extern int  nv40_graph_unload_context(struct drm_device *);
1137extern void nv40_grctx_init(struct nouveau_grctx *);
1138extern void nv40_graph_set_tile_region(struct drm_device *dev, int i);
1139
1140/* nv50_graph.c */
1141extern int  nv50_graph_init(struct drm_device *);
1142extern void nv50_graph_takedown(struct drm_device *);
1143extern void nv50_graph_fifo_access(struct drm_device *, bool);
1144extern struct nouveau_channel *nv50_graph_channel(struct drm_device *);
1145extern int  nv50_graph_create_context(struct nouveau_channel *);
1146extern void nv50_graph_destroy_context(struct nouveau_channel *);
1147extern int  nv50_graph_load_context(struct nouveau_channel *);
1148extern int  nv50_graph_unload_context(struct drm_device *);
1149extern void nv50_graph_context_switch(struct drm_device *);
1150extern int  nv50_grctx_init(struct nouveau_grctx *);
1151extern void nv50_graph_tlb_flush(struct drm_device *dev);
1152extern void nv86_graph_tlb_flush(struct drm_device *dev);
1153
1154/* nvc0_graph.c */
1155extern int  nvc0_graph_init(struct drm_device *);
1156extern void nvc0_graph_takedown(struct drm_device *);
1157extern void nvc0_graph_fifo_access(struct drm_device *, bool);
1158extern struct nouveau_channel *nvc0_graph_channel(struct drm_device *);
1159extern int  nvc0_graph_create_context(struct nouveau_channel *);
1160extern void nvc0_graph_destroy_context(struct nouveau_channel *);
1161extern int  nvc0_graph_load_context(struct nouveau_channel *);
1162extern int  nvc0_graph_unload_context(struct drm_device *);
1163
1164/* nv84_crypt.c */
1165extern int  nv84_crypt_init(struct drm_device *dev);
1166extern void nv84_crypt_fini(struct drm_device *dev);
1167extern int  nv84_crypt_create_context(struct nouveau_channel *);
1168extern void nv84_crypt_destroy_context(struct nouveau_channel *);
1169extern void nv84_crypt_tlb_flush(struct drm_device *dev);
1170
1171/* nv04_instmem.c */
1172extern int  nv04_instmem_init(struct drm_device *);
1173extern void nv04_instmem_takedown(struct drm_device *);
1174extern int  nv04_instmem_suspend(struct drm_device *);
1175extern void nv04_instmem_resume(struct drm_device *);
1176extern int  nv04_instmem_populate(struct drm_device *, struct nouveau_gpuobj *,
1177				  u32 *size, u32 align);
1178extern void nv04_instmem_clear(struct drm_device *, struct nouveau_gpuobj *);
1179extern int  nv04_instmem_bind(struct drm_device *, struct nouveau_gpuobj *);
1180extern int  nv04_instmem_unbind(struct drm_device *, struct nouveau_gpuobj *);
1181extern void nv04_instmem_flush(struct drm_device *);
1182
1183/* nv50_instmem.c */
1184extern int  nv50_instmem_init(struct drm_device *);
1185extern void nv50_instmem_takedown(struct drm_device *);
1186extern int  nv50_instmem_suspend(struct drm_device *);
1187extern void nv50_instmem_resume(struct drm_device *);
1188extern int  nv50_instmem_populate(struct drm_device *, struct nouveau_gpuobj *,
1189				  u32 *size, u32 align);
1190extern void nv50_instmem_clear(struct drm_device *, struct nouveau_gpuobj *);
1191extern int  nv50_instmem_bind(struct drm_device *, struct nouveau_gpuobj *);
1192extern int  nv50_instmem_unbind(struct drm_device *, struct nouveau_gpuobj *);
1193extern void nv50_instmem_flush(struct drm_device *);
1194extern void nv84_instmem_flush(struct drm_device *);
1195extern void nv50_vm_flush(struct drm_device *, int engine);
1196
1197/* nvc0_instmem.c */
1198extern int  nvc0_instmem_init(struct drm_device *);
1199extern void nvc0_instmem_takedown(struct drm_device *);
1200extern int  nvc0_instmem_suspend(struct drm_device *);
1201extern void nvc0_instmem_resume(struct drm_device *);
1202extern int  nvc0_instmem_populate(struct drm_device *, struct nouveau_gpuobj *,
1203				  u32 *size, u32 align);
1204extern void nvc0_instmem_clear(struct drm_device *, struct nouveau_gpuobj *);
1205extern int  nvc0_instmem_bind(struct drm_device *, struct nouveau_gpuobj *);
1206extern int  nvc0_instmem_unbind(struct drm_device *, struct nouveau_gpuobj *);
1207extern void nvc0_instmem_flush(struct drm_device *);
1208
1209/* nv04_mc.c */
1210extern int  nv04_mc_init(struct drm_device *);
1211extern void nv04_mc_takedown(struct drm_device *);
1212
1213/* nv40_mc.c */
1214extern int  nv40_mc_init(struct drm_device *);
1215extern void nv40_mc_takedown(struct drm_device *);
1216
1217/* nv50_mc.c */
1218extern int  nv50_mc_init(struct drm_device *);
1219extern void nv50_mc_takedown(struct drm_device *);
1220
1221/* nv04_timer.c */
1222extern int  nv04_timer_init(struct drm_device *);
1223extern uint64_t nv04_timer_read(struct drm_device *);
1224extern void nv04_timer_takedown(struct drm_device *);
1225
1226extern long nouveau_compat_ioctl(struct file *file, unsigned int cmd,
1227				 unsigned long arg);
1228
1229/* nv04_dac.c */
1230extern int nv04_dac_create(struct drm_connector *, struct dcb_entry *);
1231extern uint32_t nv17_dac_sample_load(struct drm_encoder *encoder);
1232extern int nv04_dac_output_offset(struct drm_encoder *encoder);
1233extern void nv04_dac_update_dacclk(struct drm_encoder *encoder, bool enable);
1234extern bool nv04_dac_in_use(struct drm_encoder *encoder);
1235
1236/* nv04_dfp.c */
1237extern int nv04_dfp_create(struct drm_connector *, struct dcb_entry *);
1238extern int nv04_dfp_get_bound_head(struct drm_device *dev, struct dcb_entry *dcbent);
1239extern void nv04_dfp_bind_head(struct drm_device *dev, struct dcb_entry *dcbent,
1240			       int head, bool dl);
1241extern void nv04_dfp_disable(struct drm_device *dev, int head);
1242extern void nv04_dfp_update_fp_control(struct drm_encoder *encoder, int mode);
1243
1244/* nv04_tv.c */
1245extern int nv04_tv_identify(struct drm_device *dev, int i2c_index);
1246extern int nv04_tv_create(struct drm_connector *, struct dcb_entry *);
1247
1248/* nv17_tv.c */
1249extern int nv17_tv_create(struct drm_connector *, struct dcb_entry *);
1250
1251/* nv04_display.c */
1252extern int nv04_display_early_init(struct drm_device *);
1253extern void nv04_display_late_takedown(struct drm_device *);
1254extern int nv04_display_create(struct drm_device *);
1255extern int nv04_display_init(struct drm_device *);
1256extern void nv04_display_destroy(struct drm_device *);
1257
1258/* nv04_crtc.c */
1259extern int nv04_crtc_create(struct drm_device *, int index);
1260
1261/* nouveau_bo.c */
1262extern struct ttm_bo_driver nouveau_bo_driver;
1263extern int nouveau_bo_new(struct drm_device *, struct nouveau_channel *,
1264			  int size, int align, uint32_t flags,
1265			  uint32_t tile_mode, uint32_t tile_flags,
1266			  bool no_vm, bool mappable, struct nouveau_bo **);
1267extern int nouveau_bo_pin(struct nouveau_bo *, uint32_t flags);
1268extern int nouveau_bo_unpin(struct nouveau_bo *);
1269extern int nouveau_bo_map(struct nouveau_bo *);
1270extern void nouveau_bo_unmap(struct nouveau_bo *);
1271extern void nouveau_bo_placement_set(struct nouveau_bo *, uint32_t type,
1272				     uint32_t busy);
1273extern u16 nouveau_bo_rd16(struct nouveau_bo *nvbo, unsigned index);
1274extern void nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val);
1275extern u32 nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index);
1276extern void nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val);
1277extern void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *);
1278
1279/* nouveau_fence.c */
1280struct nouveau_fence;
1281extern int nouveau_fence_init(struct drm_device *);
1282extern void nouveau_fence_fini(struct drm_device *);
1283extern int nouveau_fence_channel_init(struct nouveau_channel *);
1284extern void nouveau_fence_channel_fini(struct nouveau_channel *);
1285extern void nouveau_fence_update(struct nouveau_channel *);
1286extern int nouveau_fence_new(struct nouveau_channel *, struct nouveau_fence **,
1287			     bool emit);
1288extern int nouveau_fence_emit(struct nouveau_fence *);
1289extern void nouveau_fence_work(struct nouveau_fence *fence,
1290			       void (*work)(void *priv, bool signalled),
1291			       void *priv);
1292struct nouveau_channel *nouveau_fence_channel(struct nouveau_fence *);
1293
1294extern bool __nouveau_fence_signalled(void *obj, void *arg);
1295extern int __nouveau_fence_wait(void *obj, void *arg, bool lazy, bool intr);
1296extern int __nouveau_fence_flush(void *obj, void *arg);
1297extern void __nouveau_fence_unref(void **obj);
1298extern void *__nouveau_fence_ref(void *obj);
1299
1300static inline bool nouveau_fence_signalled(struct nouveau_fence *obj)
1301{
1302	return __nouveau_fence_signalled(obj, NULL);
1303}
1304static inline int
1305nouveau_fence_wait(struct nouveau_fence *obj, bool lazy, bool intr)
1306{
1307	return __nouveau_fence_wait(obj, NULL, lazy, intr);
1308}
1309extern int nouveau_fence_sync(struct nouveau_fence *, struct nouveau_channel *);
1310static inline int nouveau_fence_flush(struct nouveau_fence *obj)
1311{
1312	return __nouveau_fence_flush(obj, NULL);
1313}
1314static inline void nouveau_fence_unref(struct nouveau_fence **obj)
1315{
1316	__nouveau_fence_unref((void **)obj);
1317}
1318static inline struct nouveau_fence *nouveau_fence_ref(struct nouveau_fence *obj)
1319{
1320	return __nouveau_fence_ref(obj);
1321}
1322
1323/* nouveau_gem.c */
1324extern int nouveau_gem_new(struct drm_device *, struct nouveau_channel *,
1325			   int size, int align, uint32_t flags,
1326			   uint32_t tile_mode, uint32_t tile_flags,
1327			   bool no_vm, bool mappable, struct nouveau_bo **);
1328extern int nouveau_gem_object_new(struct drm_gem_object *);
1329extern void nouveau_gem_object_del(struct drm_gem_object *);
1330extern int nouveau_gem_ioctl_new(struct drm_device *, void *,
1331				 struct drm_file *);
1332extern int nouveau_gem_ioctl_pushbuf(struct drm_device *, void *,
1333				     struct drm_file *);
1334extern int nouveau_gem_ioctl_cpu_prep(struct drm_device *, void *,
1335				      struct drm_file *);
1336extern int nouveau_gem_ioctl_cpu_fini(struct drm_device *, void *,
1337				      struct drm_file *);
1338extern int nouveau_gem_ioctl_info(struct drm_device *, void *,
1339				  struct drm_file *);
1340
1341/* nouveau_display.c */
1342int nouveau_vblank_enable(struct drm_device *dev, int crtc);
1343void nouveau_vblank_disable(struct drm_device *dev, int crtc);
1344int nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
1345			   struct drm_pending_vblank_event *event);
1346int nouveau_finish_page_flip(struct nouveau_channel *,
1347			     struct nouveau_page_flip_state *);
1348
1349/* nv10_gpio.c */
1350int nv10_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
1351int nv10_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
1352
1353/* nv50_gpio.c */
1354int nv50_gpio_init(struct drm_device *dev);
1355int nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
1356int nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
1357void nv50_gpio_irq_enable(struct drm_device *, enum dcb_gpio_tag, bool on);
1358
1359/* nv50_calc. */
1360int nv50_calc_pll(struct drm_device *, struct pll_lims *, int clk,
1361		  int *N1, int *M1, int *N2, int *M2, int *P);
1362int nv50_calc_pll2(struct drm_device *, struct pll_lims *,
1363		   int clk, int *N, int *fN, int *M, int *P);
1364
1365#ifndef ioread32_native
1366#ifdef __BIG_ENDIAN
1367#define ioread16_native ioread16be
1368#define iowrite16_native iowrite16be
1369#define ioread32_native  ioread32be
1370#define iowrite32_native iowrite32be
1371#else /* def __BIG_ENDIAN */
1372#define ioread16_native ioread16
1373#define iowrite16_native iowrite16
1374#define ioread32_native  ioread32
1375#define iowrite32_native iowrite32
1376#endif /* def __BIG_ENDIAN else */
1377#endif /* !ioread32_native */
1378
1379/* channel control reg access */
1380static inline u32 nvchan_rd32(struct nouveau_channel *chan, unsigned reg)
1381{
1382	return ioread32_native(chan->user + reg);
1383}
1384
1385static inline void nvchan_wr32(struct nouveau_channel *chan,
1386							unsigned reg, u32 val)
1387{
1388	iowrite32_native(val, chan->user + reg);
1389}
1390
1391/* register access */
1392static inline u32 nv_rd32(struct drm_device *dev, unsigned reg)
1393{
1394	struct drm_nouveau_private *dev_priv = dev->dev_private;
1395	return ioread32_native(dev_priv->mmio + reg);
1396}
1397
1398static inline void nv_wr32(struct drm_device *dev, unsigned reg, u32 val)
1399{
1400	struct drm_nouveau_private *dev_priv = dev->dev_private;
1401	iowrite32_native(val, dev_priv->mmio + reg);
1402}
1403
1404static inline u32 nv_mask(struct drm_device *dev, u32 reg, u32 mask, u32 val)
1405{
1406	u32 tmp = nv_rd32(dev, reg);
1407	nv_wr32(dev, reg, (tmp & ~mask) | val);
1408	return tmp;
1409}
1410
1411static inline u8 nv_rd08(struct drm_device *dev, unsigned reg)
1412{
1413	struct drm_nouveau_private *dev_priv = dev->dev_private;
1414	return ioread8(dev_priv->mmio + reg);
1415}
1416
1417static inline void nv_wr08(struct drm_device *dev, unsigned reg, u8 val)
1418{
1419	struct drm_nouveau_private *dev_priv = dev->dev_private;
1420	iowrite8(val, dev_priv->mmio + reg);
1421}
1422
1423#define nv_wait(dev, reg, mask, val) \
1424	nouveau_wait_until(dev, 2000000000ULL, (reg), (mask), (val))
1425
1426/* PRAMIN access */
1427static inline u32 nv_ri32(struct drm_device *dev, unsigned offset)
1428{
1429	struct drm_nouveau_private *dev_priv = dev->dev_private;
1430	return ioread32_native(dev_priv->ramin + offset);
1431}
1432
1433static inline void nv_wi32(struct drm_device *dev, unsigned offset, u32 val)
1434{
1435	struct drm_nouveau_private *dev_priv = dev->dev_private;
1436	iowrite32_native(val, dev_priv->ramin + offset);
1437}
1438
1439/* object access */
1440extern u32 nv_ro32(struct nouveau_gpuobj *, u32 offset);
1441extern void nv_wo32(struct nouveau_gpuobj *, u32 offset, u32 val);
1442
1443/*
1444 * Logging
1445 * Argument d is (struct drm_device *).
1446 */
1447#define NV_PRINTK(level, d, fmt, arg...) \
1448	printk(level "[" DRM_NAME "] " DRIVER_NAME " %s: " fmt, \
1449					pci_name(d->pdev), ##arg)
1450#ifndef NV_DEBUG_NOTRACE
1451#define NV_DEBUG(d, fmt, arg...) do {                                          \
1452	if (drm_debug & DRM_UT_DRIVER) {                                       \
1453		NV_PRINTK(KERN_DEBUG, d, "%s:%d - " fmt, __func__,             \
1454			  __LINE__, ##arg);                                    \
1455	}                                                                      \
1456} while (0)
1457#define NV_DEBUG_KMS(d, fmt, arg...) do {                                      \
1458	if (drm_debug & DRM_UT_KMS) {                                          \
1459		NV_PRINTK(KERN_DEBUG, d, "%s:%d - " fmt, __func__,             \
1460			  __LINE__, ##arg);                                    \
1461	}                                                                      \
1462} while (0)
1463#else
1464#define NV_DEBUG(d, fmt, arg...) do {                                          \
1465	if (drm_debug & DRM_UT_DRIVER)                                         \
1466		NV_PRINTK(KERN_DEBUG, d, fmt, ##arg);                          \
1467} while (0)
1468#define NV_DEBUG_KMS(d, fmt, arg...) do {                                      \
1469	if (drm_debug & DRM_UT_KMS)                                            \
1470		NV_PRINTK(KERN_DEBUG, d, fmt, ##arg);                          \
1471} while (0)
1472#endif
1473#define NV_ERROR(d, fmt, arg...) NV_PRINTK(KERN_ERR, d, fmt, ##arg)
1474#define NV_INFO(d, fmt, arg...) NV_PRINTK(KERN_INFO, d, fmt, ##arg)
1475#define NV_TRACEWARN(d, fmt, arg...) NV_PRINTK(KERN_NOTICE, d, fmt, ##arg)
1476#define NV_TRACE(d, fmt, arg...) NV_PRINTK(KERN_INFO, d, fmt, ##arg)
1477#define NV_WARN(d, fmt, arg...) NV_PRINTK(KERN_WARNING, d, fmt, ##arg)
1478
1479/* nouveau_reg_debug bitmask */
1480enum {
1481	NOUVEAU_REG_DEBUG_MC             = 0x1,
1482	NOUVEAU_REG_DEBUG_VIDEO          = 0x2,
1483	NOUVEAU_REG_DEBUG_FB             = 0x4,
1484	NOUVEAU_REG_DEBUG_EXTDEV         = 0x8,
1485	NOUVEAU_REG_DEBUG_CRTC           = 0x10,
1486	NOUVEAU_REG_DEBUG_RAMDAC         = 0x20,
1487	NOUVEAU_REG_DEBUG_VGACRTC        = 0x40,
1488	NOUVEAU_REG_DEBUG_RMVIO          = 0x80,
1489	NOUVEAU_REG_DEBUG_VGAATTR        = 0x100,
1490	NOUVEAU_REG_DEBUG_EVO            = 0x200,
1491};
1492
1493#define NV_REG_DEBUG(type, dev, fmt, arg...) do { \
1494	if (nouveau_reg_debug & NOUVEAU_REG_DEBUG_##type) \
1495		NV_PRINTK(KERN_DEBUG, dev, "%s: " fmt, __func__, ##arg); \
1496} while (0)
1497
1498static inline bool
1499nv_two_heads(struct drm_device *dev)
1500{
1501	struct drm_nouveau_private *dev_priv = dev->dev_private;
1502	const int impl = dev->pci_device & 0x0ff0;
1503
1504	if (dev_priv->card_type >= NV_10 && impl != 0x0100 &&
1505	    impl != 0x0150 && impl != 0x01a0 && impl != 0x0200)
1506		return true;
1507
1508	return false;
1509}
1510
1511static inline bool
1512nv_gf4_disp_arch(struct drm_device *dev)
1513{
1514	return nv_two_heads(dev) && (dev->pci_device & 0x0ff0) != 0x0110;
1515}
1516
1517static inline bool
1518nv_two_reg_pll(struct drm_device *dev)
1519{
1520	struct drm_nouveau_private *dev_priv = dev->dev_private;
1521	const int impl = dev->pci_device & 0x0ff0;
1522
1523	if (impl == 0x0310 || impl == 0x0340 || dev_priv->card_type >= NV_40)
1524		return true;
1525	return false;
1526}
1527
1528static inline bool
1529nv_match_device(struct drm_device *dev, unsigned device,
1530		unsigned sub_vendor, unsigned sub_device)
1531{
1532	return dev->pdev->device == device &&
1533		dev->pdev->subsystem_vendor == sub_vendor &&
1534		dev->pdev->subsystem_device == sub_device;
1535}
1536
1537#define NV_SW                                                        0x0000506e
1538#define NV_SW_DMA_SEMAPHORE                                          0x00000060
1539#define NV_SW_SEMAPHORE_OFFSET                                       0x00000064
1540#define NV_SW_SEMAPHORE_ACQUIRE                                      0x00000068
1541#define NV_SW_SEMAPHORE_RELEASE                                      0x0000006c
1542#define NV_SW_YIELD                                                  0x00000080
1543#define NV_SW_DMA_VBLSEM                                             0x0000018c
1544#define NV_SW_VBLSEM_OFFSET                                          0x00000400
1545#define NV_SW_VBLSEM_RELEASE_VALUE                                   0x00000404
1546#define NV_SW_VBLSEM_RELEASE                                         0x00000408
1547#define NV_SW_PAGE_FLIP                                              0x00000500
1548
1549#endif /* __NOUVEAU_DRV_H__ */
1550