1/* mga_drv.h -- Private header for the Matrox G200/G400 driver -*- linux-c -*-
2 * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
3 *
4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
6 * All rights reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
22 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 * OTHER DEALINGS IN THE SOFTWARE.
26 *
27 * Authors:
28 *    Gareth Hughes <gareth@valinux.com>
29 */
30
31#ifndef __MGA_DRV_H__
32#define __MGA_DRV_H__
33
34#include <drm/drm_legacy.h>
35
36/* General customization:
37 */
38
39#define DRIVER_AUTHOR		"Gareth Hughes, VA Linux Systems Inc."
40
41#define DRIVER_NAME		"mga"
42#define DRIVER_DESC		"Matrox G200/G400"
43#define DRIVER_DATE		"20051102"
44
45#define DRIVER_MAJOR		3
46#define DRIVER_MINOR		2
47#define DRIVER_PATCHLEVEL	1
48
49typedef struct drm_mga_primary_buffer {
50	u8 *start;
51	u8 *end;
52	int size;
53
54	u32 tail;
55	int space;
56	volatile long wrapped;
57
58	volatile u32 *status;
59
60	u32 last_flush;
61	u32 last_wrap;
62
63	u32 high_mark;
64} drm_mga_primary_buffer_t;
65
66typedef struct drm_mga_freelist {
67	struct drm_mga_freelist *next;
68	struct drm_mga_freelist *prev;
69	drm_mga_age_t age;
70	struct drm_buf *buf;
71} drm_mga_freelist_t;
72
73typedef struct {
74	drm_mga_freelist_t *list_entry;
75	int discard;
76	int dispatched;
77} drm_mga_buf_priv_t;
78
79typedef struct drm_mga_private {
80	drm_mga_primary_buffer_t prim;
81	drm_mga_sarea_t *sarea_priv;
82
83	drm_mga_freelist_t *head;
84	drm_mga_freelist_t *tail;
85
86	unsigned int warp_pipe;
87	unsigned long warp_pipe_phys[MGA_MAX_WARP_PIPES];
88
89	int chipset;
90	int usec_timeout;
91
92	/**
93	 * If set, the new DMA initialization sequence was used.  This is
94	 * primarilly used to select how the driver should uninitialized its
95	 * internal DMA structures.
96	 */
97	int used_new_dma_init;
98
99	/**
100	 * If AGP memory is used for DMA buffers, this will be the value
101	 * \c MGA_PAGPXFER.  Otherwise, it will be zero (for a PCI transfer).
102	 */
103	u32 dma_access;
104
105	/**
106	 * If AGP memory is used for DMA buffers, this will be the value
107	 * \c MGA_WAGP_ENABLE.  Otherwise, it will be zero (for a PCI
108	 * transfer).
109	 */
110	u32 wagp_enable;
111
112	/**
113	 * \name MMIO region parameters.
114	 *
115	 * \sa drm_mga_private_t::mmio
116	 */
117	/*@{ */
118	resource_size_t mmio_base;	   /**< Bus address of base of MMIO. */
119	resource_size_t mmio_size;	   /**< Size of the MMIO region. */
120	/*@} */
121
122	u32 clear_cmd;
123	u32 maccess;
124
125	atomic_t vbl_received;          /**< Number of vblanks received. */
126	wait_queue_head_t fence_queue;
127	atomic_t last_fence_retired;
128	u32 next_fence_to_post;
129
130	unsigned int fb_cpp;
131	unsigned int front_offset;
132	unsigned int front_pitch;
133	unsigned int back_offset;
134	unsigned int back_pitch;
135
136	unsigned int depth_cpp;
137	unsigned int depth_offset;
138	unsigned int depth_pitch;
139
140	unsigned int texture_offset;
141	unsigned int texture_size;
142
143	drm_local_map_t *sarea;
144	drm_local_map_t *mmio;
145	drm_local_map_t *status;
146	drm_local_map_t *warp;
147	drm_local_map_t *primary;
148	drm_local_map_t *agp_textures;
149
150	unsigned long agp_handle;
151	unsigned int agp_size;
152} drm_mga_private_t;
153
154extern const struct drm_ioctl_desc mga_ioctls[];
155extern int mga_max_ioctl;
156
157				/* mga_dma.c */
158extern int mga_dma_bootstrap(struct drm_device *dev, void *data,
159			     struct drm_file *file_priv);
160extern int mga_dma_init(struct drm_device *dev, void *data,
161			struct drm_file *file_priv);
162extern int mga_dma_flush(struct drm_device *dev, void *data,
163			 struct drm_file *file_priv);
164extern int mga_dma_reset(struct drm_device *dev, void *data,
165			 struct drm_file *file_priv);
166extern int mga_dma_buffers(struct drm_device *dev, void *data,
167			   struct drm_file *file_priv);
168extern int mga_driver_load(struct drm_device *dev, unsigned long flags);
169extern int mga_driver_unload(struct drm_device *dev);
170extern void mga_driver_lastclose(struct drm_device *dev);
171extern int mga_driver_dma_quiescent(struct drm_device *dev);
172
173extern int mga_do_wait_for_idle(drm_mga_private_t *dev_priv);
174
175extern void mga_do_dma_flush(drm_mga_private_t *dev_priv);
176extern void mga_do_dma_wrap_start(drm_mga_private_t *dev_priv);
177extern void mga_do_dma_wrap_end(drm_mga_private_t *dev_priv);
178
179extern int mga_freelist_put(struct drm_device *dev, struct drm_buf *buf);
180
181				/* mga_warp.c */
182extern int mga_warp_install_microcode(drm_mga_private_t *dev_priv);
183extern int mga_warp_init(drm_mga_private_t *dev_priv);
184
185				/* mga_irq.c */
186extern int mga_enable_vblank(struct drm_device *dev, int crtc);
187extern void mga_disable_vblank(struct drm_device *dev, int crtc);
188extern u32 mga_get_vblank_counter(struct drm_device *dev, int crtc);
189extern int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence);
190extern int mga_driver_vblank_wait(struct drm_device *dev, unsigned int *sequence);
191extern irqreturn_t mga_driver_irq_handler(int irq, void *arg);
192extern void mga_driver_irq_preinstall(struct drm_device *dev);
193extern int mga_driver_irq_postinstall(struct drm_device *dev);
194extern void mga_driver_irq_uninstall(struct drm_device *dev);
195extern long mga_compat_ioctl(struct file *filp, unsigned int cmd,
196			     unsigned long arg);
197
198#define mga_flush_write_combine()	wmb()
199
200#define MGA_READ8(reg)		DRM_READ8(dev_priv->mmio, (reg))
201#define MGA_READ(reg)		DRM_READ32(dev_priv->mmio, (reg))
202#define MGA_WRITE8(reg, val)	DRM_WRITE8(dev_priv->mmio, (reg), (val))
203#define MGA_WRITE(reg, val)	DRM_WRITE32(dev_priv->mmio, (reg), (val))
204
205#define DWGREG0		0x1c00
206#define DWGREG0_END	0x1dff
207#define DWGREG1		0x2c00
208#define DWGREG1_END	0x2dff
209
210#define ISREG0(r)	(r >= DWGREG0 && r <= DWGREG0_END)
211#define DMAREG0(r)	(u8)((r - DWGREG0) >> 2)
212#define DMAREG1(r)	(u8)(((r - DWGREG1) >> 2) | 0x80)
213#define DMAREG(r)	(ISREG0(r) ? DMAREG0(r) : DMAREG1(r))
214
215/* ================================================================
216 * Helper macross...
217 */
218
219#define MGA_EMIT_STATE(dev_priv, dirty)					\
220do {									\
221	if ((dirty) & ~MGA_UPLOAD_CLIPRECTS) {				\
222		if (dev_priv->chipset >= MGA_CARD_TYPE_G400)		\
223			mga_g400_emit_state(dev_priv);			\
224		else							\
225			mga_g200_emit_state(dev_priv);			\
226	}								\
227} while (0)
228
229#define WRAP_TEST_WITH_RETURN(dev_priv)					\
230do {									\
231	if (test_bit(0, &dev_priv->prim.wrapped)) {			\
232		if (mga_is_idle(dev_priv)) {				\
233			mga_do_dma_wrap_end(dev_priv);			\
234		} else if (dev_priv->prim.space <			\
235			   dev_priv->prim.high_mark) {			\
236			if (MGA_DMA_DEBUG)				\
237				DRM_INFO("wrap...\n");			\
238			return -EBUSY;					\
239		}							\
240	}								\
241} while (0)
242
243#define WRAP_WAIT_WITH_RETURN(dev_priv)					\
244do {									\
245	if (test_bit(0, &dev_priv->prim.wrapped)) {			\
246		if (mga_do_wait_for_idle(dev_priv) < 0) {		\
247			if (MGA_DMA_DEBUG)				\
248				DRM_INFO("wrap...\n");			\
249			return -EBUSY;					\
250		}							\
251		mga_do_dma_wrap_end(dev_priv);				\
252	}								\
253} while (0)
254
255/* ================================================================
256 * Primary DMA command stream
257 */
258
259#define MGA_VERBOSE	0
260
261#define DMA_LOCALS	unsigned int write; volatile u8 *prim;
262
263#define DMA_BLOCK_SIZE	(5 * sizeof(u32))
264
265#define BEGIN_DMA(n)							\
266do {									\
267	if (MGA_VERBOSE) {						\
268		DRM_INFO("BEGIN_DMA(%d)\n", (n));			\
269		DRM_INFO("   space=0x%x req=0x%Zx\n",			\
270			 dev_priv->prim.space, (n) * DMA_BLOCK_SIZE);	\
271	}								\
272	prim = dev_priv->prim.start;					\
273	write = dev_priv->prim.tail;					\
274} while (0)
275
276#define BEGIN_DMA_WRAP()						\
277do {									\
278	if (MGA_VERBOSE) {						\
279		DRM_INFO("BEGIN_DMA()\n");				\
280		DRM_INFO("   space=0x%x\n", dev_priv->prim.space);	\
281	}								\
282	prim = dev_priv->prim.start;					\
283	write = dev_priv->prim.tail;					\
284} while (0)
285
286#define ADVANCE_DMA()							\
287do {									\
288	dev_priv->prim.tail = write;					\
289	if (MGA_VERBOSE)						\
290		DRM_INFO("ADVANCE_DMA() tail=0x%05x sp=0x%x\n",		\
291			 write, dev_priv->prim.space);			\
292} while (0)
293
294#define FLUSH_DMA()							\
295do {									\
296	if (0) {							\
297		DRM_INFO("\n");						\
298		DRM_INFO("   tail=0x%06x head=0x%06lx\n",		\
299			 dev_priv->prim.tail,				\
300			 (unsigned long)(MGA_READ(MGA_PRIMADDRESS) -	\
301					 dev_priv->primary->offset));	\
302	}								\
303	if (!test_bit(0, &dev_priv->prim.wrapped)) {			\
304		if (dev_priv->prim.space < dev_priv->prim.high_mark)	\
305			mga_do_dma_wrap_start(dev_priv);		\
306		else							\
307			mga_do_dma_flush(dev_priv);			\
308	}								\
309} while (0)
310
311/* Never use this, always use DMA_BLOCK(...) for primary DMA output.
312 */
313#define DMA_WRITE(offset, val)						\
314do {									\
315	if (MGA_VERBOSE)						\
316		DRM_INFO("   DMA_WRITE( 0x%08x ) at 0x%04Zx\n",		\
317			 (u32)(val), write + (offset) * sizeof(u32));	\
318	*(volatile u32 *)(prim + write + (offset) * sizeof(u32)) = val;	\
319} while (0)
320
321#define DMA_BLOCK(reg0, val0, reg1, val1, reg2, val2, reg3, val3)	\
322do {									\
323	DMA_WRITE(0, ((DMAREG(reg0) << 0) |				\
324		      (DMAREG(reg1) << 8) |				\
325		      (DMAREG(reg2) << 16) |				\
326		      (DMAREG(reg3) << 24)));				\
327	DMA_WRITE(1, val0);						\
328	DMA_WRITE(2, val1);						\
329	DMA_WRITE(3, val2);						\
330	DMA_WRITE(4, val3);						\
331	write += DMA_BLOCK_SIZE;					\
332} while (0)
333
334/* Buffer aging via primary DMA stream head pointer.
335 */
336
337#define SET_AGE(age, h, w)						\
338do {									\
339	(age)->head = h;						\
340	(age)->wrap = w;						\
341} while (0)
342
343#define TEST_AGE(age, h, w)		((age)->wrap < w ||		\
344					 ((age)->wrap == w &&		\
345					  (age)->head < h))
346
347#define AGE_BUFFER(buf_priv)						\
348do {									\
349	drm_mga_freelist_t *entry = (buf_priv)->list_entry;		\
350	if ((buf_priv)->dispatched) {					\
351		entry->age.head = (dev_priv->prim.tail +		\
352				   dev_priv->primary->offset);		\
353		entry->age.wrap = dev_priv->sarea_priv->last_wrap;	\
354	} else {							\
355		entry->age.head = 0;					\
356		entry->age.wrap = 0;					\
357	}								\
358} while (0)
359
360#define MGA_ENGINE_IDLE_MASK		(MGA_SOFTRAPEN |		\
361					 MGA_DWGENGSTS |		\
362					 MGA_ENDPRDMASTS)
363#define MGA_DMA_IDLE_MASK		(MGA_SOFTRAPEN |		\
364					 MGA_ENDPRDMASTS)
365
366#define MGA_DMA_DEBUG			0
367
368/* A reduced set of the mga registers.
369 */
370#define MGA_CRTC_INDEX			0x1fd4
371#define MGA_CRTC_DATA			0x1fd5
372
373/* CRTC11 */
374#define MGA_VINTCLR			(1 << 4)
375#define MGA_VINTEN			(1 << 5)
376
377#define MGA_ALPHACTRL			0x2c7c
378#define MGA_AR0				0x1c60
379#define MGA_AR1				0x1c64
380#define MGA_AR2				0x1c68
381#define MGA_AR3				0x1c6c
382#define MGA_AR4				0x1c70
383#define MGA_AR5				0x1c74
384#define MGA_AR6				0x1c78
385
386#define MGA_CXBNDRY			0x1c80
387#define MGA_CXLEFT			0x1ca0
388#define MGA_CXRIGHT			0x1ca4
389
390#define MGA_DMAPAD			0x1c54
391#define MGA_DSTORG			0x2cb8
392#define MGA_DWGCTL			0x1c00
393#	define MGA_OPCOD_MASK			(15 << 0)
394#	define MGA_OPCOD_TRAP			(4 << 0)
395#	define MGA_OPCOD_TEXTURE_TRAP		(6 << 0)
396#	define MGA_OPCOD_BITBLT			(8 << 0)
397#	define MGA_OPCOD_ILOAD			(9 << 0)
398#	define MGA_ATYPE_MASK			(7 << 4)
399#	define MGA_ATYPE_RPL			(0 << 4)
400#	define MGA_ATYPE_RSTR			(1 << 4)
401#	define MGA_ATYPE_ZI			(3 << 4)
402#	define MGA_ATYPE_BLK			(4 << 4)
403#	define MGA_ATYPE_I			(7 << 4)
404#	define MGA_LINEAR			(1 << 7)
405#	define MGA_ZMODE_MASK			(7 << 8)
406#	define MGA_ZMODE_NOZCMP			(0 << 8)
407#	define MGA_ZMODE_ZE			(2 << 8)
408#	define MGA_ZMODE_ZNE			(3 << 8)
409#	define MGA_ZMODE_ZLT			(4 << 8)
410#	define MGA_ZMODE_ZLTE			(5 << 8)
411#	define MGA_ZMODE_ZGT			(6 << 8)
412#	define MGA_ZMODE_ZGTE			(7 << 8)
413#	define MGA_SOLID			(1 << 11)
414#	define MGA_ARZERO			(1 << 12)
415#	define MGA_SGNZERO			(1 << 13)
416#	define MGA_SHIFTZERO			(1 << 14)
417#	define MGA_BOP_MASK			(15 << 16)
418#	define MGA_BOP_ZERO			(0 << 16)
419#	define MGA_BOP_DST			(10 << 16)
420#	define MGA_BOP_SRC			(12 << 16)
421#	define MGA_BOP_ONE			(15 << 16)
422#	define MGA_TRANS_SHIFT			20
423#	define MGA_TRANS_MASK			(15 << 20)
424#	define MGA_BLTMOD_MASK			(15 << 25)
425#	define MGA_BLTMOD_BMONOLEF		(0 << 25)
426#	define MGA_BLTMOD_BMONOWF		(4 << 25)
427#	define MGA_BLTMOD_PLAN			(1 << 25)
428#	define MGA_BLTMOD_BFCOL			(2 << 25)
429#	define MGA_BLTMOD_BU32BGR		(3 << 25)
430#	define MGA_BLTMOD_BU32RGB		(7 << 25)
431#	define MGA_BLTMOD_BU24BGR		(11 << 25)
432#	define MGA_BLTMOD_BU24RGB		(15 << 25)
433#	define MGA_PATTERN			(1 << 29)
434#	define MGA_TRANSC			(1 << 30)
435#	define MGA_CLIPDIS			(1 << 31)
436#define MGA_DWGSYNC			0x2c4c
437
438#define MGA_FCOL			0x1c24
439#define MGA_FIFOSTATUS			0x1e10
440#define MGA_FOGCOL			0x1cf4
441#define MGA_FXBNDRY			0x1c84
442#define MGA_FXLEFT			0x1ca8
443#define MGA_FXRIGHT			0x1cac
444
445#define MGA_ICLEAR			0x1e18
446#	define MGA_SOFTRAPICLR			(1 << 0)
447#	define MGA_VLINEICLR			(1 << 5)
448#define MGA_IEN				0x1e1c
449#	define MGA_SOFTRAPIEN			(1 << 0)
450#	define MGA_VLINEIEN			(1 << 5)
451
452#define MGA_LEN				0x1c5c
453
454#define MGA_MACCESS			0x1c04
455
456#define MGA_PITCH			0x1c8c
457#define MGA_PLNWT			0x1c1c
458#define MGA_PRIMADDRESS			0x1e58
459#	define MGA_DMA_GENERAL			(0 << 0)
460#	define MGA_DMA_BLIT			(1 << 0)
461#	define MGA_DMA_VECTOR			(2 << 0)
462#	define MGA_DMA_VERTEX			(3 << 0)
463#define MGA_PRIMEND			0x1e5c
464#	define MGA_PRIMNOSTART			(1 << 0)
465#	define MGA_PAGPXFER			(1 << 1)
466#define MGA_PRIMPTR			0x1e50
467#	define MGA_PRIMPTREN0			(1 << 0)
468#	define MGA_PRIMPTREN1			(1 << 1)
469
470#define MGA_RST				0x1e40
471#	define MGA_SOFTRESET			(1 << 0)
472#	define MGA_SOFTEXTRST			(1 << 1)
473
474#define MGA_SECADDRESS			0x2c40
475#define MGA_SECEND			0x2c44
476#define MGA_SETUPADDRESS		0x2cd0
477#define MGA_SETUPEND			0x2cd4
478#define MGA_SGN				0x1c58
479#define MGA_SOFTRAP			0x2c48
480#define MGA_SRCORG			0x2cb4
481#	define MGA_SRMMAP_MASK			(1 << 0)
482#	define MGA_SRCMAP_FB			(0 << 0)
483#	define MGA_SRCMAP_SYSMEM		(1 << 0)
484#	define MGA_SRCACC_MASK			(1 << 1)
485#	define MGA_SRCACC_PCI			(0 << 1)
486#	define MGA_SRCACC_AGP			(1 << 1)
487#define MGA_STATUS			0x1e14
488#	define MGA_SOFTRAPEN			(1 << 0)
489#	define MGA_VSYNCPEN			(1 << 4)
490#	define MGA_VLINEPEN			(1 << 5)
491#	define MGA_DWGENGSTS			(1 << 16)
492#	define MGA_ENDPRDMASTS			(1 << 17)
493#define MGA_STENCIL			0x2cc8
494#define MGA_STENCILCTL			0x2ccc
495
496#define MGA_TDUALSTAGE0			0x2cf8
497#define MGA_TDUALSTAGE1			0x2cfc
498#define MGA_TEXBORDERCOL		0x2c5c
499#define MGA_TEXCTL			0x2c30
500#define MGA_TEXCTL2			0x2c3c
501#	define MGA_DUALTEX			(1 << 7)
502#	define MGA_G400_TC2_MAGIC		(1 << 15)
503#	define MGA_MAP1_ENABLE			(1 << 31)
504#define MGA_TEXFILTER			0x2c58
505#define MGA_TEXHEIGHT			0x2c2c
506#define MGA_TEXORG			0x2c24
507#	define MGA_TEXORGMAP_MASK		(1 << 0)
508#	define MGA_TEXORGMAP_FB			(0 << 0)
509#	define MGA_TEXORGMAP_SYSMEM		(1 << 0)
510#	define MGA_TEXORGACC_MASK		(1 << 1)
511#	define MGA_TEXORGACC_PCI		(0 << 1)
512#	define MGA_TEXORGACC_AGP		(1 << 1)
513#define MGA_TEXORG1			0x2ca4
514#define MGA_TEXORG2			0x2ca8
515#define MGA_TEXORG3			0x2cac
516#define MGA_TEXORG4			0x2cb0
517#define MGA_TEXTRANS			0x2c34
518#define MGA_TEXTRANSHIGH		0x2c38
519#define MGA_TEXWIDTH			0x2c28
520
521#define MGA_WACCEPTSEQ			0x1dd4
522#define MGA_WCODEADDR			0x1e6c
523#define MGA_WFLAG			0x1dc4
524#define MGA_WFLAG1			0x1de0
525#define MGA_WFLAGNB			0x1e64
526#define MGA_WFLAGNB1			0x1e08
527#define MGA_WGETMSB			0x1dc8
528#define MGA_WIADDR			0x1dc0
529#define MGA_WIADDR2			0x1dd8
530#	define MGA_WMODE_SUSPEND		(0 << 0)
531#	define MGA_WMODE_RESUME			(1 << 0)
532#	define MGA_WMODE_JUMP			(2 << 0)
533#	define MGA_WMODE_START			(3 << 0)
534#	define MGA_WAGP_ENABLE			(1 << 2)
535#define MGA_WMISC			0x1e70
536#	define MGA_WUCODECACHE_ENABLE		(1 << 0)
537#	define MGA_WMASTER_ENABLE		(1 << 1)
538#	define MGA_WCACHEFLUSH_ENABLE		(1 << 3)
539#define MGA_WVRTXSZ			0x1dcc
540
541#define MGA_YBOT			0x1c9c
542#define MGA_YDST			0x1c90
543#define MGA_YDSTLEN			0x1c88
544#define MGA_YDSTORG			0x1c94
545#define MGA_YTOP			0x1c98
546
547#define MGA_ZORG			0x1c0c
548
549/* This finishes the current batch of commands
550 */
551#define MGA_EXEC			0x0100
552
553/* AGP PLL encoding (for G200 only).
554 */
555#define MGA_AGP_PLL			0x1e4c
556#	define MGA_AGP2XPLL_DISABLE		(0 << 0)
557#	define MGA_AGP2XPLL_ENABLE		(1 << 0)
558
559/* Warp registers
560 */
561#define MGA_WR0				0x2d00
562#define MGA_WR1				0x2d04
563#define MGA_WR2				0x2d08
564#define MGA_WR3				0x2d0c
565#define MGA_WR4				0x2d10
566#define MGA_WR5				0x2d14
567#define MGA_WR6				0x2d18
568#define MGA_WR7				0x2d1c
569#define MGA_WR8				0x2d20
570#define MGA_WR9				0x2d24
571#define MGA_WR10			0x2d28
572#define MGA_WR11			0x2d2c
573#define MGA_WR12			0x2d30
574#define MGA_WR13			0x2d34
575#define MGA_WR14			0x2d38
576#define MGA_WR15			0x2d3c
577#define MGA_WR16			0x2d40
578#define MGA_WR17			0x2d44
579#define MGA_WR18			0x2d48
580#define MGA_WR19			0x2d4c
581#define MGA_WR20			0x2d50
582#define MGA_WR21			0x2d54
583#define MGA_WR22			0x2d58
584#define MGA_WR23			0x2d5c
585#define MGA_WR24			0x2d60
586#define MGA_WR25			0x2d64
587#define MGA_WR26			0x2d68
588#define MGA_WR27			0x2d6c
589#define MGA_WR28			0x2d70
590#define MGA_WR29			0x2d74
591#define MGA_WR30			0x2d78
592#define MGA_WR31			0x2d7c
593#define MGA_WR32			0x2d80
594#define MGA_WR33			0x2d84
595#define MGA_WR34			0x2d88
596#define MGA_WR35			0x2d8c
597#define MGA_WR36			0x2d90
598#define MGA_WR37			0x2d94
599#define MGA_WR38			0x2d98
600#define MGA_WR39			0x2d9c
601#define MGA_WR40			0x2da0
602#define MGA_WR41			0x2da4
603#define MGA_WR42			0x2da8
604#define MGA_WR43			0x2dac
605#define MGA_WR44			0x2db0
606#define MGA_WR45			0x2db4
607#define MGA_WR46			0x2db8
608#define MGA_WR47			0x2dbc
609#define MGA_WR48			0x2dc0
610#define MGA_WR49			0x2dc4
611#define MGA_WR50			0x2dc8
612#define MGA_WR51			0x2dcc
613#define MGA_WR52			0x2dd0
614#define MGA_WR53			0x2dd4
615#define MGA_WR54			0x2dd8
616#define MGA_WR55			0x2ddc
617#define MGA_WR56			0x2de0
618#define MGA_WR57			0x2de4
619#define MGA_WR58			0x2de8
620#define MGA_WR59			0x2dec
621#define MGA_WR60			0x2df0
622#define MGA_WR61			0x2df4
623#define MGA_WR62			0x2df8
624#define MGA_WR63			0x2dfc
625#	define MGA_G400_WR_MAGIC		(1 << 6)
626#	define MGA_G400_WR56_MAGIC		0x46480000	/* 12800.0f */
627
628#define MGA_ILOAD_ALIGN		64
629#define MGA_ILOAD_MASK		(MGA_ILOAD_ALIGN - 1)
630
631#define MGA_DWGCTL_FLUSH	(MGA_OPCOD_TEXTURE_TRAP |		\
632				 MGA_ATYPE_I |				\
633				 MGA_ZMODE_NOZCMP |			\
634				 MGA_ARZERO |				\
635				 MGA_SGNZERO |				\
636				 MGA_BOP_SRC |				\
637				 (15 << MGA_TRANS_SHIFT))
638
639#define MGA_DWGCTL_CLEAR	(MGA_OPCOD_TRAP |			\
640				 MGA_ZMODE_NOZCMP |			\
641				 MGA_SOLID |				\
642				 MGA_ARZERO |				\
643				 MGA_SGNZERO |				\
644				 MGA_SHIFTZERO |			\
645				 MGA_BOP_SRC |				\
646				 (0 << MGA_TRANS_SHIFT) |		\
647				 MGA_BLTMOD_BMONOLEF |			\
648				 MGA_TRANSC |				\
649				 MGA_CLIPDIS)
650
651#define MGA_DWGCTL_COPY		(MGA_OPCOD_BITBLT |			\
652				 MGA_ATYPE_RPL |			\
653				 MGA_SGNZERO |				\
654				 MGA_SHIFTZERO |			\
655				 MGA_BOP_SRC |				\
656				 (0 << MGA_TRANS_SHIFT) |		\
657				 MGA_BLTMOD_BFCOL |			\
658				 MGA_CLIPDIS)
659
660/* Simple idle test.
661 */
662static __inline__ int mga_is_idle(drm_mga_private_t *dev_priv)
663{
664	u32 status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK;
665	return (status == MGA_ENDPRDMASTS);
666}
667
668#endif
669