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 <linux/irqreturn.h>
35  #include <linux/slab.h>
36  
37  #include <drm/drm_agpsupport.h>
38  #include <drm/drm_device.h>
39  #include <drm/drm_file.h>
40  #include <drm/drm_ioctl.h>
41  #include <drm/drm_irq.h>
42  #include <drm/drm_legacy.h>
43  #include <drm/drm_pci.h>
44  #include <drm/drm_print.h>
45  #include <drm/drm_sarea.h>
46  #include <drm/drm_vblank.h>
47  #include <drm/mga_drm.h>
48  
49  /* General customization:
50   */
51  
52  #define DRIVER_AUTHOR		"Gareth Hughes, VA Linux Systems Inc."
53  
54  #define DRIVER_NAME		"mga"
55  #define DRIVER_DESC		"Matrox G200/G400"
56  #define DRIVER_DATE		"20051102"
57  
58  #define DRIVER_MAJOR		3
59  #define DRIVER_MINOR		2
60  #define DRIVER_PATCHLEVEL	1
61  
62  typedef struct drm_mga_primary_buffer {
63  	u8 *start;
64  	u8 *end;
65  	int size;
66  
67  	u32 tail;
68  	int space;
69  	volatile long wrapped;
70  
71  	volatile u32 *status;
72  
73  	u32 last_flush;
74  	u32 last_wrap;
75  
76  	u32 high_mark;
77  } drm_mga_primary_buffer_t;
78  
79  typedef struct drm_mga_freelist {
80  	struct drm_mga_freelist *next;
81  	struct drm_mga_freelist *prev;
82  	drm_mga_age_t age;
83  	struct drm_buf *buf;
84  } drm_mga_freelist_t;
85  
86  typedef struct {
87  	drm_mga_freelist_t *list_entry;
88  	int discard;
89  	int dispatched;
90  } drm_mga_buf_priv_t;
91  
92  typedef struct drm_mga_private {
93  	drm_mga_primary_buffer_t prim;
94  	drm_mga_sarea_t *sarea_priv;
95  
96  	drm_mga_freelist_t *head;
97  	drm_mga_freelist_t *tail;
98  
99  	unsigned int warp_pipe;
100  	unsigned long warp_pipe_phys[MGA_MAX_WARP_PIPES];
101  
102  	int chipset;
103  	int usec_timeout;
104  
105  	/**
106  	 * If set, the new DMA initialization sequence was used.  This is
107  	 * primarilly used to select how the driver should uninitialized its
108  	 * internal DMA structures.
109  	 */
110  	int used_new_dma_init;
111  
112  	/**
113  	 * If AGP memory is used for DMA buffers, this will be the value
114  	 * \c MGA_PAGPXFER.  Otherwise, it will be zero (for a PCI transfer).
115  	 */
116  	u32 dma_access;
117  
118  	/**
119  	 * If AGP memory is used for DMA buffers, this will be the value
120  	 * \c MGA_WAGP_ENABLE.  Otherwise, it will be zero (for a PCI
121  	 * transfer).
122  	 */
123  	u32 wagp_enable;
124  
125  	/**
126  	 * \name MMIO region parameters.
127  	 *
128  	 * \sa drm_mga_private_t::mmio
129  	 */
130  	/*@{ */
131  	resource_size_t mmio_base;	   /**< Bus address of base of MMIO. */
132  	resource_size_t mmio_size;	   /**< Size of the MMIO region. */
133  	/*@} */
134  
135  	u32 clear_cmd;
136  	u32 maccess;
137  
138  	atomic_t vbl_received;          /**< Number of vblanks received. */
139  	wait_queue_head_t fence_queue;
140  	atomic_t last_fence_retired;
141  	u32 next_fence_to_post;
142  
143  	unsigned int fb_cpp;
144  	unsigned int front_offset;
145  	unsigned int front_pitch;
146  	unsigned int back_offset;
147  	unsigned int back_pitch;
148  
149  	unsigned int depth_cpp;
150  	unsigned int depth_offset;
151  	unsigned int depth_pitch;
152  
153  	unsigned int texture_offset;
154  	unsigned int texture_size;
155  
156  	drm_local_map_t *sarea;
157  	drm_local_map_t *mmio;
158  	drm_local_map_t *status;
159  	drm_local_map_t *warp;
160  	drm_local_map_t *primary;
161  	drm_local_map_t *agp_textures;
162  
163  	unsigned long agp_handle;
164  	unsigned int agp_size;
165  } drm_mga_private_t;
166  
167  extern const struct drm_ioctl_desc mga_ioctls[];
168  extern int mga_max_ioctl;
169  
170  				/* mga_dma.c */
171  extern int mga_dma_bootstrap(struct drm_device *dev, void *data,
172  			     struct drm_file *file_priv);
173  extern int mga_dma_init(struct drm_device *dev, void *data,
174  			struct drm_file *file_priv);
175  extern int mga_getparam(struct drm_device *dev, void *data,
176  			struct drm_file *file_priv);
177  extern int mga_dma_flush(struct drm_device *dev, void *data,
178  			 struct drm_file *file_priv);
179  extern int mga_dma_reset(struct drm_device *dev, void *data,
180  			 struct drm_file *file_priv);
181  extern int mga_dma_buffers(struct drm_device *dev, void *data,
182  			   struct drm_file *file_priv);
183  extern int mga_driver_load(struct drm_device *dev, unsigned long flags);
184  extern void mga_driver_unload(struct drm_device *dev);
185  extern void mga_driver_lastclose(struct drm_device *dev);
186  extern int mga_driver_dma_quiescent(struct drm_device *dev);
187  
188  extern int mga_do_wait_for_idle(drm_mga_private_t *dev_priv);
189  
190  extern void mga_do_dma_flush(drm_mga_private_t *dev_priv);
191  extern void mga_do_dma_wrap_start(drm_mga_private_t *dev_priv);
192  extern void mga_do_dma_wrap_end(drm_mga_private_t *dev_priv);
193  
194  extern int mga_freelist_put(struct drm_device *dev, struct drm_buf *buf);
195  
196  				/* mga_warp.c */
197  extern int mga_warp_install_microcode(drm_mga_private_t *dev_priv);
198  extern int mga_warp_init(drm_mga_private_t *dev_priv);
199  
200  				/* mga_irq.c */
201  extern int mga_enable_vblank(struct drm_device *dev, unsigned int pipe);
202  extern void mga_disable_vblank(struct drm_device *dev, unsigned int pipe);
203  extern u32 mga_get_vblank_counter(struct drm_device *dev, unsigned int pipe);
204  extern void mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence);
205  extern int mga_driver_vblank_wait(struct drm_device *dev, unsigned int *sequence);
206  extern irqreturn_t mga_driver_irq_handler(int irq, void *arg);
207  extern void mga_driver_irq_preinstall(struct drm_device *dev);
208  extern int mga_driver_irq_postinstall(struct drm_device *dev);
209  extern void mga_driver_irq_uninstall(struct drm_device *dev);
210  extern long mga_compat_ioctl(struct file *filp, unsigned int cmd,
211  			     unsigned long arg);
212  
213  #define mga_flush_write_combine()	wmb()
214  
215  #define MGA_READ8(reg) \
216  	readb(((void __iomem *)dev_priv->mmio->handle) + (reg))
217  #define MGA_READ(reg) \
218  	readl(((void __iomem *)dev_priv->mmio->handle) + (reg))
219  #define MGA_WRITE8(reg, val) \
220  	writeb(val, ((void __iomem *)dev_priv->mmio->handle) + (reg))
221  #define MGA_WRITE(reg, val) \
222  	writel(val, ((void __iomem *)dev_priv->mmio->handle) + (reg))
223  
224  #define DWGREG0		0x1c00
225  #define DWGREG0_END	0x1dff
226  #define DWGREG1		0x2c00
227  #define DWGREG1_END	0x2dff
228  
229  #define ISREG0(r)	(r >= DWGREG0 && r <= DWGREG0_END)
230  #define DMAREG0(r)	(u8)((r - DWGREG0) >> 2)
231  #define DMAREG1(r)	(u8)(((r - DWGREG1) >> 2) | 0x80)
232  #define DMAREG(r)	(ISREG0(r) ? DMAREG0(r) : DMAREG1(r))
233  
234  /* ================================================================
235   * Helper macross...
236   */
237  
238  #define MGA_EMIT_STATE(dev_priv, dirty)					\
239  do {									\
240  	if ((dirty) & ~MGA_UPLOAD_CLIPRECTS) {				\
241  		if (dev_priv->chipset >= MGA_CARD_TYPE_G400)		\
242  			mga_g400_emit_state(dev_priv);			\
243  		else							\
244  			mga_g200_emit_state(dev_priv);			\
245  	}								\
246  } while (0)
247  
248  #define WRAP_TEST_WITH_RETURN(dev_priv)					\
249  do {									\
250  	if (test_bit(0, &dev_priv->prim.wrapped)) {			\
251  		if (mga_is_idle(dev_priv)) {				\
252  			mga_do_dma_wrap_end(dev_priv);			\
253  		} else if (dev_priv->prim.space <			\
254  			   dev_priv->prim.high_mark) {			\
255  			if (MGA_DMA_DEBUG)				\
256  				DRM_INFO("wrap...\n");			\
257  			return -EBUSY;					\
258  		}							\
259  	}								\
260  } while (0)
261  
262  #define WRAP_WAIT_WITH_RETURN(dev_priv)					\
263  do {									\
264  	if (test_bit(0, &dev_priv->prim.wrapped)) {			\
265  		if (mga_do_wait_for_idle(dev_priv) < 0) {		\
266  			if (MGA_DMA_DEBUG)				\
267  				DRM_INFO("wrap...\n");			\
268  			return -EBUSY;					\
269  		}							\
270  		mga_do_dma_wrap_end(dev_priv);				\
271  	}								\
272  } while (0)
273  
274  /* ================================================================
275   * Primary DMA command stream
276   */
277  
278  #define MGA_VERBOSE	0
279  
280  #define DMA_LOCALS	unsigned int write; volatile u8 *prim;
281  
282  #define DMA_BLOCK_SIZE	(5 * sizeof(u32))
283  
284  #define BEGIN_DMA(n)							\
285  do {									\
286  	if (MGA_VERBOSE) {						\
287  		DRM_INFO("BEGIN_DMA(%d)\n", (n));			\
288  		DRM_INFO("   space=0x%x req=0x%zx\n",			\
289  			 dev_priv->prim.space, (n) * DMA_BLOCK_SIZE);	\
290  	}								\
291  	prim = dev_priv->prim.start;					\
292  	write = dev_priv->prim.tail;					\
293  } while (0)
294  
295  #define BEGIN_DMA_WRAP()						\
296  do {									\
297  	if (MGA_VERBOSE) {						\
298  		DRM_INFO("BEGIN_DMA()\n");				\
299  		DRM_INFO("   space=0x%x\n", dev_priv->prim.space);	\
300  	}								\
301  	prim = dev_priv->prim.start;					\
302  	write = dev_priv->prim.tail;					\
303  } while (0)
304  
305  #define ADVANCE_DMA()							\
306  do {									\
307  	dev_priv->prim.tail = write;					\
308  	if (MGA_VERBOSE)						\
309  		DRM_INFO("ADVANCE_DMA() tail=0x%05x sp=0x%x\n",		\
310  			 write, dev_priv->prim.space);			\
311  } while (0)
312  
313  #define FLUSH_DMA()							\
314  do {									\
315  	if (0) {							\
316  		DRM_INFO("\n");						\
317  		DRM_INFO("   tail=0x%06x head=0x%06lx\n",		\
318  			 dev_priv->prim.tail,				\
319  			 (unsigned long)(MGA_READ(MGA_PRIMADDRESS) -	\
320  					 dev_priv->primary->offset));	\
321  	}								\
322  	if (!test_bit(0, &dev_priv->prim.wrapped)) {			\
323  		if (dev_priv->prim.space < dev_priv->prim.high_mark)	\
324  			mga_do_dma_wrap_start(dev_priv);		\
325  		else							\
326  			mga_do_dma_flush(dev_priv);			\
327  	}								\
328  } while (0)
329  
330  /* Never use this, always use DMA_BLOCK(...) for primary DMA output.
331   */
332  #define DMA_WRITE(offset, val)						\
333  do {									\
334  	if (MGA_VERBOSE)						\
335  		DRM_INFO("   DMA_WRITE( 0x%08x ) at 0x%04zx\n",		\
336  			 (u32)(val), write + (offset) * sizeof(u32));	\
337  	*(volatile u32 *)(prim + write + (offset) * sizeof(u32)) = val;	\
338  } while (0)
339  
340  #define DMA_BLOCK(reg0, val0, reg1, val1, reg2, val2, reg3, val3)	\
341  do {									\
342  	DMA_WRITE(0, ((DMAREG(reg0) << 0) |				\
343  		      (DMAREG(reg1) << 8) |				\
344  		      (DMAREG(reg2) << 16) |				\
345  		      (DMAREG(reg3) << 24)));				\
346  	DMA_WRITE(1, val0);						\
347  	DMA_WRITE(2, val1);						\
348  	DMA_WRITE(3, val2);						\
349  	DMA_WRITE(4, val3);						\
350  	write += DMA_BLOCK_SIZE;					\
351  } while (0)
352  
353  /* Buffer aging via primary DMA stream head pointer.
354   */
355  
356  #define SET_AGE(age, h, w)						\
357  do {									\
358  	(age)->head = h;						\
359  	(age)->wrap = w;						\
360  } while (0)
361  
362  #define TEST_AGE(age, h, w)		((age)->wrap < w ||		\
363  					 ((age)->wrap == w &&		\
364  					  (age)->head < h))
365  
366  #define AGE_BUFFER(buf_priv)						\
367  do {									\
368  	drm_mga_freelist_t *entry = (buf_priv)->list_entry;		\
369  	if ((buf_priv)->dispatched) {					\
370  		entry->age.head = (dev_priv->prim.tail +		\
371  				   dev_priv->primary->offset);		\
372  		entry->age.wrap = dev_priv->sarea_priv->last_wrap;	\
373  	} else {							\
374  		entry->age.head = 0;					\
375  		entry->age.wrap = 0;					\
376  	}								\
377  } while (0)
378  
379  #define MGA_ENGINE_IDLE_MASK		(MGA_SOFTRAPEN |		\
380  					 MGA_DWGENGSTS |		\
381  					 MGA_ENDPRDMASTS)
382  #define MGA_DMA_IDLE_MASK		(MGA_SOFTRAPEN |		\
383  					 MGA_ENDPRDMASTS)
384  
385  #define MGA_DMA_DEBUG			0
386  
387  /* A reduced set of the mga registers.
388   */
389  #define MGA_CRTC_INDEX			0x1fd4
390  #define MGA_CRTC_DATA			0x1fd5
391  
392  /* CRTC11 */
393  #define MGA_VINTCLR			(1 << 4)
394  #define MGA_VINTEN			(1 << 5)
395  
396  #define MGA_ALPHACTRL			0x2c7c
397  #define MGA_AR0				0x1c60
398  #define MGA_AR1				0x1c64
399  #define MGA_AR2				0x1c68
400  #define MGA_AR3				0x1c6c
401  #define MGA_AR4				0x1c70
402  #define MGA_AR5				0x1c74
403  #define MGA_AR6				0x1c78
404  
405  #define MGA_CXBNDRY			0x1c80
406  #define MGA_CXLEFT			0x1ca0
407  #define MGA_CXRIGHT			0x1ca4
408  
409  #define MGA_DMAPAD			0x1c54
410  #define MGA_DSTORG			0x2cb8
411  #define MGA_DWGCTL			0x1c00
412  #	define MGA_OPCOD_MASK			(15 << 0)
413  #	define MGA_OPCOD_TRAP			(4 << 0)
414  #	define MGA_OPCOD_TEXTURE_TRAP		(6 << 0)
415  #	define MGA_OPCOD_BITBLT			(8 << 0)
416  #	define MGA_OPCOD_ILOAD			(9 << 0)
417  #	define MGA_ATYPE_MASK			(7 << 4)
418  #	define MGA_ATYPE_RPL			(0 << 4)
419  #	define MGA_ATYPE_RSTR			(1 << 4)
420  #	define MGA_ATYPE_ZI			(3 << 4)
421  #	define MGA_ATYPE_BLK			(4 << 4)
422  #	define MGA_ATYPE_I			(7 << 4)
423  #	define MGA_LINEAR			(1 << 7)
424  #	define MGA_ZMODE_MASK			(7 << 8)
425  #	define MGA_ZMODE_NOZCMP			(0 << 8)
426  #	define MGA_ZMODE_ZE			(2 << 8)
427  #	define MGA_ZMODE_ZNE			(3 << 8)
428  #	define MGA_ZMODE_ZLT			(4 << 8)
429  #	define MGA_ZMODE_ZLTE			(5 << 8)
430  #	define MGA_ZMODE_ZGT			(6 << 8)
431  #	define MGA_ZMODE_ZGTE			(7 << 8)
432  #	define MGA_SOLID			(1 << 11)
433  #	define MGA_ARZERO			(1 << 12)
434  #	define MGA_SGNZERO			(1 << 13)
435  #	define MGA_SHIFTZERO			(1 << 14)
436  #	define MGA_BOP_MASK			(15 << 16)
437  #	define MGA_BOP_ZERO			(0 << 16)
438  #	define MGA_BOP_DST			(10 << 16)
439  #	define MGA_BOP_SRC			(12 << 16)
440  #	define MGA_BOP_ONE			(15 << 16)
441  #	define MGA_TRANS_SHIFT			20
442  #	define MGA_TRANS_MASK			(15 << 20)
443  #	define MGA_BLTMOD_MASK			(15 << 25)
444  #	define MGA_BLTMOD_BMONOLEF		(0 << 25)
445  #	define MGA_BLTMOD_BMONOWF		(4 << 25)
446  #	define MGA_BLTMOD_PLAN			(1 << 25)
447  #	define MGA_BLTMOD_BFCOL			(2 << 25)
448  #	define MGA_BLTMOD_BU32BGR		(3 << 25)
449  #	define MGA_BLTMOD_BU32RGB		(7 << 25)
450  #	define MGA_BLTMOD_BU24BGR		(11 << 25)
451  #	define MGA_BLTMOD_BU24RGB		(15 << 25)
452  #	define MGA_PATTERN			(1 << 29)
453  #	define MGA_TRANSC			(1 << 30)
454  #	define MGA_CLIPDIS			(1 << 31)
455  #define MGA_DWGSYNC			0x2c4c
456  
457  #define MGA_FCOL			0x1c24
458  #define MGA_FIFOSTATUS			0x1e10
459  #define MGA_FOGCOL			0x1cf4
460  #define MGA_FXBNDRY			0x1c84
461  #define MGA_FXLEFT			0x1ca8
462  #define MGA_FXRIGHT			0x1cac
463  
464  #define MGA_ICLEAR			0x1e18
465  #	define MGA_SOFTRAPICLR			(1 << 0)
466  #	define MGA_VLINEICLR			(1 << 5)
467  #define MGA_IEN				0x1e1c
468  #	define MGA_SOFTRAPIEN			(1 << 0)
469  #	define MGA_VLINEIEN			(1 << 5)
470  
471  #define MGA_LEN				0x1c5c
472  
473  #define MGA_MACCESS			0x1c04
474  
475  #define MGA_PITCH			0x1c8c
476  #define MGA_PLNWT			0x1c1c
477  #define MGA_PRIMADDRESS			0x1e58
478  #	define MGA_DMA_GENERAL			(0 << 0)
479  #	define MGA_DMA_BLIT			(1 << 0)
480  #	define MGA_DMA_VECTOR			(2 << 0)
481  #	define MGA_DMA_VERTEX			(3 << 0)
482  #define MGA_PRIMEND			0x1e5c
483  #	define MGA_PRIMNOSTART			(1 << 0)
484  #	define MGA_PAGPXFER			(1 << 1)
485  #define MGA_PRIMPTR			0x1e50
486  #	define MGA_PRIMPTREN0			(1 << 0)
487  #	define MGA_PRIMPTREN1			(1 << 1)
488  
489  #define MGA_RST				0x1e40
490  #	define MGA_SOFTRESET			(1 << 0)
491  #	define MGA_SOFTEXTRST			(1 << 1)
492  
493  #define MGA_SECADDRESS			0x2c40
494  #define MGA_SECEND			0x2c44
495  #define MGA_SETUPADDRESS		0x2cd0
496  #define MGA_SETUPEND			0x2cd4
497  #define MGA_SGN				0x1c58
498  #define MGA_SOFTRAP			0x2c48
499  #define MGA_SRCORG			0x2cb4
500  #	define MGA_SRMMAP_MASK			(1 << 0)
501  #	define MGA_SRCMAP_FB			(0 << 0)
502  #	define MGA_SRCMAP_SYSMEM		(1 << 0)
503  #	define MGA_SRCACC_MASK			(1 << 1)
504  #	define MGA_SRCACC_PCI			(0 << 1)
505  #	define MGA_SRCACC_AGP			(1 << 1)
506  #define MGA_STATUS			0x1e14
507  #	define MGA_SOFTRAPEN			(1 << 0)
508  #	define MGA_VSYNCPEN			(1 << 4)
509  #	define MGA_VLINEPEN			(1 << 5)
510  #	define MGA_DWGENGSTS			(1 << 16)
511  #	define MGA_ENDPRDMASTS			(1 << 17)
512  #define MGA_STENCIL			0x2cc8
513  #define MGA_STENCILCTL			0x2ccc
514  
515  #define MGA_TDUALSTAGE0			0x2cf8
516  #define MGA_TDUALSTAGE1			0x2cfc
517  #define MGA_TEXBORDERCOL		0x2c5c
518  #define MGA_TEXCTL			0x2c30
519  #define MGA_TEXCTL2			0x2c3c
520  #	define MGA_DUALTEX			(1 << 7)
521  #	define MGA_G400_TC2_MAGIC		(1 << 15)
522  #	define MGA_MAP1_ENABLE			(1 << 31)
523  #define MGA_TEXFILTER			0x2c58
524  #define MGA_TEXHEIGHT			0x2c2c
525  #define MGA_TEXORG			0x2c24
526  #	define MGA_TEXORGMAP_MASK		(1 << 0)
527  #	define MGA_TEXORGMAP_FB			(0 << 0)
528  #	define MGA_TEXORGMAP_SYSMEM		(1 << 0)
529  #	define MGA_TEXORGACC_MASK		(1 << 1)
530  #	define MGA_TEXORGACC_PCI		(0 << 1)
531  #	define MGA_TEXORGACC_AGP		(1 << 1)
532  #define MGA_TEXORG1			0x2ca4
533  #define MGA_TEXORG2			0x2ca8
534  #define MGA_TEXORG3			0x2cac
535  #define MGA_TEXORG4			0x2cb0
536  #define MGA_TEXTRANS			0x2c34
537  #define MGA_TEXTRANSHIGH		0x2c38
538  #define MGA_TEXWIDTH			0x2c28
539  
540  #define MGA_WACCEPTSEQ			0x1dd4
541  #define MGA_WCODEADDR			0x1e6c
542  #define MGA_WFLAG			0x1dc4
543  #define MGA_WFLAG1			0x1de0
544  #define MGA_WFLAGNB			0x1e64
545  #define MGA_WFLAGNB1			0x1e08
546  #define MGA_WGETMSB			0x1dc8
547  #define MGA_WIADDR			0x1dc0
548  #define MGA_WIADDR2			0x1dd8
549  #	define MGA_WMODE_SUSPEND		(0 << 0)
550  #	define MGA_WMODE_RESUME			(1 << 0)
551  #	define MGA_WMODE_JUMP			(2 << 0)
552  #	define MGA_WMODE_START			(3 << 0)
553  #	define MGA_WAGP_ENABLE			(1 << 2)
554  #define MGA_WMISC			0x1e70
555  #	define MGA_WUCODECACHE_ENABLE		(1 << 0)
556  #	define MGA_WMASTER_ENABLE		(1 << 1)
557  #	define MGA_WCACHEFLUSH_ENABLE		(1 << 3)
558  #define MGA_WVRTXSZ			0x1dcc
559  
560  #define MGA_YBOT			0x1c9c
561  #define MGA_YDST			0x1c90
562  #define MGA_YDSTLEN			0x1c88
563  #define MGA_YDSTORG			0x1c94
564  #define MGA_YTOP			0x1c98
565  
566  #define MGA_ZORG			0x1c0c
567  
568  /* This finishes the current batch of commands
569   */
570  #define MGA_EXEC			0x0100
571  
572  /* AGP PLL encoding (for G200 only).
573   */
574  #define MGA_AGP_PLL			0x1e4c
575  #	define MGA_AGP2XPLL_DISABLE		(0 << 0)
576  #	define MGA_AGP2XPLL_ENABLE		(1 << 0)
577  
578  /* Warp registers
579   */
580  #define MGA_WR0				0x2d00
581  #define MGA_WR1				0x2d04
582  #define MGA_WR2				0x2d08
583  #define MGA_WR3				0x2d0c
584  #define MGA_WR4				0x2d10
585  #define MGA_WR5				0x2d14
586  #define MGA_WR6				0x2d18
587  #define MGA_WR7				0x2d1c
588  #define MGA_WR8				0x2d20
589  #define MGA_WR9				0x2d24
590  #define MGA_WR10			0x2d28
591  #define MGA_WR11			0x2d2c
592  #define MGA_WR12			0x2d30
593  #define MGA_WR13			0x2d34
594  #define MGA_WR14			0x2d38
595  #define MGA_WR15			0x2d3c
596  #define MGA_WR16			0x2d40
597  #define MGA_WR17			0x2d44
598  #define MGA_WR18			0x2d48
599  #define MGA_WR19			0x2d4c
600  #define MGA_WR20			0x2d50
601  #define MGA_WR21			0x2d54
602  #define MGA_WR22			0x2d58
603  #define MGA_WR23			0x2d5c
604  #define MGA_WR24			0x2d60
605  #define MGA_WR25			0x2d64
606  #define MGA_WR26			0x2d68
607  #define MGA_WR27			0x2d6c
608  #define MGA_WR28			0x2d70
609  #define MGA_WR29			0x2d74
610  #define MGA_WR30			0x2d78
611  #define MGA_WR31			0x2d7c
612  #define MGA_WR32			0x2d80
613  #define MGA_WR33			0x2d84
614  #define MGA_WR34			0x2d88
615  #define MGA_WR35			0x2d8c
616  #define MGA_WR36			0x2d90
617  #define MGA_WR37			0x2d94
618  #define MGA_WR38			0x2d98
619  #define MGA_WR39			0x2d9c
620  #define MGA_WR40			0x2da0
621  #define MGA_WR41			0x2da4
622  #define MGA_WR42			0x2da8
623  #define MGA_WR43			0x2dac
624  #define MGA_WR44			0x2db0
625  #define MGA_WR45			0x2db4
626  #define MGA_WR46			0x2db8
627  #define MGA_WR47			0x2dbc
628  #define MGA_WR48			0x2dc0
629  #define MGA_WR49			0x2dc4
630  #define MGA_WR50			0x2dc8
631  #define MGA_WR51			0x2dcc
632  #define MGA_WR52			0x2dd0
633  #define MGA_WR53			0x2dd4
634  #define MGA_WR54			0x2dd8
635  #define MGA_WR55			0x2ddc
636  #define MGA_WR56			0x2de0
637  #define MGA_WR57			0x2de4
638  #define MGA_WR58			0x2de8
639  #define MGA_WR59			0x2dec
640  #define MGA_WR60			0x2df0
641  #define MGA_WR61			0x2df4
642  #define MGA_WR62			0x2df8
643  #define MGA_WR63			0x2dfc
644  #	define MGA_G400_WR_MAGIC		(1 << 6)
645  #	define MGA_G400_WR56_MAGIC		0x46480000	/* 12800.0f */
646  
647  #define MGA_ILOAD_ALIGN		64
648  #define MGA_ILOAD_MASK		(MGA_ILOAD_ALIGN - 1)
649  
650  #define MGA_DWGCTL_FLUSH	(MGA_OPCOD_TEXTURE_TRAP |		\
651  				 MGA_ATYPE_I |				\
652  				 MGA_ZMODE_NOZCMP |			\
653  				 MGA_ARZERO |				\
654  				 MGA_SGNZERO |				\
655  				 MGA_BOP_SRC |				\
656  				 (15 << MGA_TRANS_SHIFT))
657  
658  #define MGA_DWGCTL_CLEAR	(MGA_OPCOD_TRAP |			\
659  				 MGA_ZMODE_NOZCMP |			\
660  				 MGA_SOLID |				\
661  				 MGA_ARZERO |				\
662  				 MGA_SGNZERO |				\
663  				 MGA_SHIFTZERO |			\
664  				 MGA_BOP_SRC |				\
665  				 (0 << MGA_TRANS_SHIFT) |		\
666  				 MGA_BLTMOD_BMONOLEF |			\
667  				 MGA_TRANSC |				\
668  				 MGA_CLIPDIS)
669  
670  #define MGA_DWGCTL_COPY		(MGA_OPCOD_BITBLT |			\
671  				 MGA_ATYPE_RPL |			\
672  				 MGA_SGNZERO |				\
673  				 MGA_SHIFTZERO |			\
674  				 MGA_BOP_SRC |				\
675  				 (0 << MGA_TRANS_SHIFT) |		\
676  				 MGA_BLTMOD_BFCOL |			\
677  				 MGA_CLIPDIS)
678  
679  /* Simple idle test.
680   */
mga_is_idle(drm_mga_private_t * dev_priv)681  static __inline__ int mga_is_idle(drm_mga_private_t *dev_priv)
682  {
683  	u32 status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK;
684  	return (status == MGA_ENDPRDMASTS);
685  }
686  
687  #endif
688