/* * Copyright (C) 2007 Ben Skeggs. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */ #ifndef __NOUVEAU_DMA_H__ #define __NOUVEAU_DMA_H__ typedef enum { NvSubM2MF = 0, } nouveau_subchannel_id_t; typedef enum { NvM2MF = 0x80039001, NvDmaFB = 0x8003d001, NvDmaTT = 0x8003d002, NvNotify0 = 0x8003d003 } nouveau_object_handle_t; #define NV_MEMORY_TO_MEMORY_FORMAT 0x00000039 #define NV_MEMORY_TO_MEMORY_FORMAT_NAME 0x00000000 #define NV_MEMORY_TO_MEMORY_FORMAT_SET_REF 0x00000050 #define NV_MEMORY_TO_MEMORY_FORMAT_NOP 0x00000100 #define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY 0x00000104 #define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY_STYLE_WRITE 0x00000000 #define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY_STYLE_WRITE_LE_AWAKEN 0x00000001 #define NV_MEMORY_TO_MEMORY_FORMAT_SET_DMA_NOTIFY 0x00000180 #define NV_MEMORY_TO_MEMORY_FORMAT_SET_DMA_SOURCE 0x00000184 #define NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN 0x0000030c #define NV50_MEMORY_TO_MEMORY_FORMAT 0x00005039 #define NV50_MEMORY_TO_MEMORY_FORMAT_UNK200 0x00000200 #define NV50_MEMORY_TO_MEMORY_FORMAT_UNK21C 0x0000021c #define NV50_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN_HIGH 0x00000238 #define NV50_MEMORY_TO_MEMORY_FORMAT_OFFSET_OUT_HIGH 0x0000023c #define BEGIN_RING(subc, mthd, cnt) do { \ int push_size = (cnt) + 1; \ if (dchan->push_free) { \ DRM_ERROR("prior packet incomplete: %d\n", dchan->push_free); \ break; \ } \ if (dchan->free < push_size) { \ if (nouveau_dma_wait(dev, push_size)) { \ DRM_ERROR("FIFO timeout\n"); \ break; \ } \ } \ dchan->free -= push_size; \ dchan->push_free = push_size; \ OUT_RING(((cnt)<<18) | ((subc)<<15) | mthd); \ } while(0) #define OUT_RING(data) do { \ if (dchan->push_free == 0) { \ DRM_ERROR("no space left in packet\n"); \ break; \ } \ dchan->pushbuf[dchan->cur++] = (data); \ dchan->push_free--; \ } while(0) #define FIRE_RING() do { \ if (dchan->push_free) { \ DRM_ERROR("packet incomplete: %d\n", dchan->push_free); \ break; \ } \ if (dchan->cur != dchan->put) { \ DRM_MEMORYBARRIER(); \ dchan->put = dchan->cur; \ NV_WRITE(dchan->chan->put, dchan->put << 2); \ } \ } while(0) #endif 8' href='#n68'>68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521
/* mga_drv.h -- Private header for the Matrox g200/g400 driver -*- linux-c -*-
 * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
 *
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Authors: Rickard E. (Rik) Faith <faith@valinux.com>
 * 	    Jeff Hartmann <jhartmann@valinux.com>
 *
 */
/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/mga_drv.h,v 1.4 2000/08/28 02:43:15 tsi Exp $ */

#ifndef _MGA_DRV_H_
#define _MGA_DRV_H_

#define MGA_BUF_IN_USE         0
#define MGA_BUF_SWAP_PENDING   1
#define MGA_BUF_FORCE_FIRE     2
#define MGA_BUF_NEEDS_OVERFLOW 3

typedef struct {
	u32 buffer_status;
   	int num_dwords;
   	int max_dwords;
   	u32 *current_dma_ptr;
   	u32 *head;
   	u32 phys_head;
	unsigned int prim_age;
   	int sec_used;
   	int idx;
} drm_mga_prim_buf_t;

typedef struct _drm_mga_freelist {
   	__volatile__ unsigned int age;
   	drm_buf_t *buf;
   	struct _drm_mga_freelist *next;
   	struct _drm_mga_freelist *prev;
} drm_mga_freelist_t;

#define MGA_IN_DISPATCH   0
#define MGA_IN_FLUSH      1
#define MGA_IN_WAIT       2
#define MGA_IN_GETBUF	  3

typedef struct _drm_mga_private {
   	u32 dispatch_status;
	unsigned int next_prim_age;
	__volatile__ unsigned int last_prim_age;
   	int reserved_map_idx;
   	int buffer_map_idx;
   	drm_mga_sarea_t *sarea_priv;
   	int primary_size;
   	int warp_ucode_size;
   	int chipset;
   	unsigned int frontOffset;
   	unsigned int backOffset;
   	unsigned int depthOffset;
   	unsigned int textureOffset;
   	unsigned int textureSize;
   	int cpp;
   	unsigned int stride;
   	int sgram;
	int use_agp;
   	drm_mga_warp_index_t WarpIndex[MGA_MAX_G400_PIPES];
	unsigned int WarpPipe;
	unsigned int vertexsize;
   	atomic_t pending_bufs;
   	void *status_page;
   	unsigned long real_status_page;
   	u8 *ioremap;
   	drm_mga_prim_buf_t **prim_bufs;
   	drm_mga_prim_buf_t *next_prim;
   	drm_mga_prim_buf_t *last_prim;
   	drm_mga_prim_buf_t *current_prim;
   	int current_prim_idx;
   	drm_mga_freelist_t *head;
   	drm_mga_freelist_t *tail;
   	wait_queue_head_t flush_queue;	/* Processes waiting until flush    */
      	wait_queue_head_t wait_queue;	/* Processes waiting until interrupt */
	wait_queue_head_t buf_queue;    /* Processes waiting for a free buf */
	/* Some validated register values:
	 */
	u32 mAccess;
} drm_mga_private_t;

				/* mga_drv.c */
extern int  mga_version(struct inode *inode, struct file *filp,
			  unsigned int cmd, unsigned long arg);
extern int  mga_open(struct inode *inode, struct file *filp);
extern int  mga_release(struct inode *inode, struct file *filp);
extern int  mga_ioctl(struct inode *inode, struct file *filp,
			unsigned int cmd, unsigned long arg);
extern int  mga_unlock(struct inode *inode, struct file *filp,
			 unsigned int cmd, unsigned long arg);

				/* mga_dma.c */
extern int  mga_dma_schedule(drm_device_t *dev, int locked);
extern int  mga_dma(struct inode *inode, struct file *filp,
		      unsigned int cmd, unsigned long arg);
extern int  mga_irq_install(drm_device_t *dev, int irq);
extern int  mga_irq_uninstall(drm_device_t *dev);
extern int  mga_control(struct inode *inode, struct file *filp,
			  unsigned int cmd, unsigned long arg);
extern int  mga_lock(struct inode *inode, struct file *filp,
		       unsigned int cmd, unsigned long arg);

/* mga_dma_init does init and release */
extern int mga_dma_init(struct inode *inode, struct file *filp,
			unsigned int cmd, unsigned long arg);
extern int mga_dma_cleanup(drm_device_t *dev);
extern int mga_flush_ioctl(struct inode *inode, struct file *filp,
			   unsigned int cmd, unsigned long arg);
extern unsigned int mga_create_sync_tag(drm_device_t *dev);
extern drm_buf_t *mga_freelist_get(drm_device_t *dev);
extern int mga_freelist_put(drm_device_t *dev, drm_buf_t *buf);
extern int mga_advance_primary(drm_device_t *dev);
extern void mga_reclaim_buffers(drm_device_t *dev, pid_t pid);


				/* mga_bufs.c */
extern int  mga_addbufs(struct inode *inode, struct file *filp,
			unsigned int cmd, unsigned long arg);
extern int  mga_infobufs(struct inode *inode, struct file *filp,
			 unsigned int cmd, unsigned long arg);
extern int  mga_markbufs(struct inode *inode, struct file *filp,
			 unsigned int cmd, unsigned long arg);
extern int  mga_freebufs(struct inode *inode, struct file *filp,
			 unsigned int cmd, unsigned long arg);
extern int  mga_mapbufs(struct inode *inode, struct file *filp,
			unsigned int cmd, unsigned long arg);
extern int  mga_addmap(struct inode *inode, struct file *filp,
		       unsigned int cmd, unsigned long arg);
				/* mga_state.c */
extern int  mga_clear_bufs(struct inode *inode, struct file *filp,
			   unsigned int cmd, unsigned long arg);
extern int  mga_swap_bufs(struct inode *inode, struct file *filp,
			  unsigned int cmd, unsigned long arg);
extern int  mga_iload(struct inode *inode, struct file *filp,
		      unsigned int cmd, unsigned long arg);
extern int  mga_vertex(struct inode *inode, struct file *filp,
		      unsigned int cmd, unsigned long arg);
extern int  mga_indices(struct inode *inode, struct file *filp,
			unsigned int cmd, unsigned long arg);
				/* mga_context.c */
extern int  mga_resctx(struct inode *inode, struct file *filp,
		       unsigned int cmd, unsigned long arg);
extern int  mga_addctx(struct inode *inode, struct file *filp,
		       unsigned int cmd, unsigned long arg);
extern int  mga_modctx(struct inode *inode, struct file *filp,
		       unsigned int cmd, unsigned long arg);
extern int  mga_getctx(struct inode *inode, struct file *filp,
		       unsigned int cmd, unsigned long arg);
extern int  mga_switchctx(struct inode *inode, struct file *filp,
			  unsigned int cmd, unsigned long arg);
extern int  mga_newctx(struct inode *inode, struct file *filp,
		       unsigned int cmd, unsigned long arg);
extern int  mga_rmctx(struct inode *inode, struct file *filp,
		      unsigned int cmd, unsigned long arg);

extern int  mga_context_switch(drm_device_t *dev, int old, int new);
extern int  mga_context_switch_complete(drm_device_t *dev, int new);

#define mga_flush_write_combine()	mb()

typedef enum {
	TT_GENERAL,
	TT_BLIT,
	TT_VECTOR,
	TT_VERTEX
} transferType_t;

typedef struct {
   	drm_mga_freelist_t *my_freelist;
	int discard;
	int dispatched;
} drm_mga_buf_priv_t;

#define DWGREG0 	0x1c00
#define DWGREG0_END 	0x1dff
#define DWGREG1		0x2c00
#define DWGREG1_END	0x2dff

#define ISREG0(r)	(r >= DWGREG0 && r <= DWGREG0_END)
#define ADRINDEX0(r)	(u8)((r - DWGREG0) >> 2)
#define ADRINDEX1(r)	(u8)(((r - DWGREG1) >> 2) | 0x80)
#define ADRINDEX(r)	(ISREG0(r) ? ADRINDEX0(r) : ADRINDEX1(r))

#define MGA_VERBOSE 0
#define MGA_NUM_PRIM_BUFS 	8

#define PRIMLOCALS	u8 tempIndex[4]; u32 *dma_ptr; u32 phys_head; \
			int outcount, num_dwords

#define PRIM_OVERFLOW(dev, dev_priv, length) do {			   \
	drm_mga_prim_buf_t *tmp_buf =					   \
 		dev_priv->prim_bufs[dev_priv->current_prim_idx];	   \
	if( test_bit(MGA_BUF_NEEDS_OVERFLOW, &tmp_buf->buffer_status)) {   \
 		mga_advance_primary(dev);				   \
 		mga_dma_schedule(dev, 1);				   \
		tmp_buf = dev_priv->prim_bufs[dev_priv->current_prim_idx]; \
 	} else if( tmp_buf->max_dwords - tmp_buf->num_dwords < length ||   \
 	           tmp_buf->sec_used > MGA_DMA_BUF_NR/2) {		   \
		set_bit(MGA_BUF_FORCE_FIRE, &tmp_buf->buffer_status);	   \
 		mga_advance_primary(dev);				   \
 		mga_dma_schedule(dev, 1);				   \
		tmp_buf = dev_priv->prim_bufs[dev_priv->current_prim_idx]; \
	}								   \
	if(MGA_VERBOSE)							   \
		DRM_DEBUG("PRIMGETPTR in %s\n", __FUNCTION__);		   \
	dma_ptr = tmp_buf->current_dma_ptr;				   \
	num_dwords = tmp_buf->num_dwords;				   \
	phys_head = tmp_buf->phys_head;					   \
	outcount = 0;							   \
} while(0)

#define PRIMGETPTR(dev_priv) do {					\
	drm_mga_prim_buf_t *tmp_buf =					\
		dev_priv->prim_bufs[dev_priv->current_prim_idx];	\
	if(MGA_VERBOSE)							\
		DRM_DEBUG("PRIMGETPTR in %s\n", __FUNCTION__);		\
	dma_ptr = tmp_buf->current_dma_ptr;				\
	num_dwords = tmp_buf->num_dwords;				\
	phys_head = tmp_buf->phys_head;					\
	outcount = 0;							\
} while(0)

#define PRIMPTR(prim_buf) do {					\
	if(MGA_VERBOSE)						\
		DRM_DEBUG("PRIMPTR in %s\n", __FUNCTION__);	\
	dma_ptr = prim_buf->current_dma_ptr;			\
	num_dwords = prim_buf->num_dwords;			\
	phys_head = prim_buf->phys_head;			\
	outcount = 0;						\
} while(0)

#define PRIMFINISH(prim_buf) do {				\
	if (MGA_VERBOSE) {					\
		DRM_DEBUG( "PRIMFINISH in %s\n", __FUNCTION__);	\
                if (outcount & 3)				\
                      DRM_DEBUG(" --- truncation\n");	        \
        }							\
	prim_buf->num_dwords = num_dwords;			\
	prim_buf->current_dma_ptr = dma_ptr;			\
} while(0)

#define PRIMADVANCE(dev_priv)	do {				\
drm_mga_prim_buf_t *tmp_buf = 					\
	dev_priv->prim_bufs[dev_priv->current_prim_idx];	\
	if (MGA_VERBOSE) {					\
		DRM_DEBUG("PRIMADVANCE in %s\n", __FUNCTION__);	\
                if (outcount & 3)				\
                      DRM_DEBUG(" --- truncation\n");	\
        }							\
	tmp_buf->num_dwords = num_dwords;      			\
	tmp_buf->current_dma_ptr = dma_ptr;    			\
} while (0)

#define PRIMUPDATE(dev_priv)	do {					\
	drm_mga_prim_buf_t *tmp_buf =					\
		dev_priv->prim_bufs[dev_priv->current_prim_idx];	\
	tmp_buf->sec_used++;						\
} while (0)

#define AGEBUF(dev_priv, buf_priv)	do {				\
	drm_mga_prim_buf_t *tmp_buf =					\
		dev_priv->prim_bufs[dev_priv->current_prim_idx];	\
	buf_priv->my_freelist->age = tmp_buf->prim_age;			\
} while (0)


#define PRIMOUTREG(reg, val) do {					\
	tempIndex[outcount]=ADRINDEX(reg);				\
	dma_ptr[1+outcount] = val;					\
	if (MGA_VERBOSE)						\
		DRM_DEBUG("   PRIMOUT %d: 0x%x -- 0x%x\n",		\
		       num_dwords + 1 + outcount, ADRINDEX(reg), val);	\
	if( ++outcount == 4) {						\
		outcount = 0;						\
		dma_ptr[0] = *(unsigned long *)tempIndex;		\
		dma_ptr+=5;						\
		num_dwords += 5;					\
	}								\
}while (0)

/* A reduced set of the mga registers.
 */

#define MGAREG_MGA_EXEC 			0x0100
#define MGAREG_ALPHACTRL 			0x2c7c
#define MGAREG_AR0 				0x1c60
#define MGAREG_AR1 				0x1c64
#define MGAREG_AR2 				0x1c68
#define MGAREG_AR3 				0x1c6c
#define MGAREG_AR4 				0x1c70
#define MGAREG_AR5 				0x1c74
#define MGAREG_AR6 				0x1c78
#define MGAREG_CXBNDRY				0x1c80
#define MGAREG_CXLEFT 				0x1ca0
#define MGAREG_CXRIGHT				0x1ca4
#define MGAREG_DMAPAD 				0x1c54
#define MGAREG_DSTORG 				0x2cb8
#define MGAREG_DWGCTL 				0x1c00
#define MGAREG_DWGSYNC				0x2c4c
#define MGAREG_FCOL 				0x1c24
#define MGAREG_FIFOSTATUS 			0x1e10
#define MGAREG_FOGCOL 				0x1cf4
#define MGAREG_FXBNDRY				0x1c84
#define MGAREG_FXLEFT 				0x1ca8
#define MGAREG_FXRIGHT				0x1cac
#define MGAREG_ICLEAR 				0x1e18
#define MGAREG_IEN 				0x1e1c
#define MGAREG_LEN 				0x1c5c
#define MGAREG_MACCESS				0x1c04
#define MGAREG_PITCH 				0x1c8c
#define MGAREG_PLNWT 				0x1c1c
#define MGAREG_PRIMADDRESS 			0x1e58
#define MGAREG_PRIMEND				0x1e5c
#define MGAREG_PRIMPTR				0x1e50
#define MGAREG_SECADDRESS 			0x2c40
#define MGAREG_SECEND 				0x2c44
#define MGAREG_SETUPADDRESS 			0x2cd0
#define MGAREG_SETUPEND 			0x2cd4
#define MGAREG_SOFTRAP				0x2c48
#define MGAREG_SRCORG 				0x2cb4
#define MGAREG_STATUS 				0x1e14
#define MGAREG_STENCIL				0x2cc8
#define MGAREG_STENCILCTL 			0x2ccc
#define MGAREG_TDUALSTAGE0 			0x2cf8
#define MGAREG_TDUALSTAGE1 			0x2cfc
#define MGAREG_TEXBORDERCOL 			0x2c5c
#define MGAREG_TEXCTL 				0x2c30
#define MGAREG_TEXCTL2				0x2c3c
#define MGAREG_TEXFILTER 			0x2c58
#define MGAREG_TEXHEIGHT 			0x2c2c
#define MGAREG_TEXORG 				0x2c24
#define MGAREG_TEXORG1				0x2ca4
#define MGAREG_TEXORG2				0x2ca8
#define MGAREG_TEXORG3				0x2cac
#define MGAREG_TEXORG4				0x2cb0
#define MGAREG_TEXTRANS 			0x2c34
#define MGAREG_TEXTRANSHIGH 			0x2c38
#define MGAREG_TEXWIDTH 			0x2c28
#define MGAREG_WACCEPTSEQ 			0x1dd4
#define MGAREG_WCODEADDR 			0x1e6c
#define MGAREG_WFLAG 				0x1dc4
#define MGAREG_WFLAG1 				0x1de0
#define MGAREG_WFLAGNB				0x1e64
#define MGAREG_WFLAGNB1 			0x1e08
#define MGAREG_WGETMSB				0x1dc8
#define MGAREG_WIADDR 				0x1dc0
#define MGAREG_WIADDR2				0x1dd8
#define MGAREG_WMISC 				0x1e70
#define MGAREG_WVRTXSZ				0x1dcc
#define MGAREG_YBOT 				0x1c9c
#define MGAREG_YDST 				0x1c90
#define MGAREG_YDSTLEN				0x1c88
#define MGAREG_YDSTORG				0x1c94
#define MGAREG_YTOP 				0x1c98
#define MGAREG_ZORG 				0x1c0c

/* Warp registers */
#define MGAREG_WR0                              0x2d00
#define MGAREG_WR1                              0x2d04
#define MGAREG_WR2                              0x2d08
#define MGAREG_WR3                              0x2d0c
#define MGAREG_WR4                              0x2d10
#define MGAREG_WR5                              0x2d14
#define MGAREG_WR6                              0x2d18
#define MGAREG_WR7                              0x2d1c
#define MGAREG_WR8                              0x2d20
#define MGAREG_WR9                              0x2d24
#define MGAREG_WR10                             0x2d28
#define MGAREG_WR11                             0x2d2c
#define MGAREG_WR12                             0x2d30
#define MGAREG_WR13                             0x2d34
#define MGAREG_WR14                             0x2d38
#define MGAREG_WR15                             0x2d3c
#define MGAREG_WR16                             0x2d40
#define MGAREG_WR17                             0x2d44
#define MGAREG_WR18                             0x2d48
#define MGAREG_WR19                             0x2d4c
#define MGAREG_WR20                             0x2d50
#define MGAREG_WR21                             0x2d54
#define MGAREG_WR22                             0x2d58
#define MGAREG_WR23                             0x2d5c
#define MGAREG_WR24                             0x2d60
#define MGAREG_WR25                             0x2d64
#define MGAREG_WR26                             0x2d68
#define MGAREG_WR27                             0x2d6c
#define MGAREG_WR28                             0x2d70
#define MGAREG_WR29                             0x2d74
#define MGAREG_WR30                             0x2d78
#define MGAREG_WR31                             0x2d7c
#define MGAREG_WR32                             0x2d80
#define MGAREG_WR33                             0x2d84
#define MGAREG_WR34                             0x2d88
#define MGAREG_WR35                             0x2d8c
#define MGAREG_WR36                             0x2d90
#define MGAREG_WR37                             0x2d94
#define MGAREG_WR38                             0x2d98
#define MGAREG_WR39                             0x2d9c
#define MGAREG_WR40                             0x2da0
#define MGAREG_WR41                             0x2da4
#define MGAREG_WR42                             0x2da8
#define MGAREG_WR43                             0x2dac
#define MGAREG_WR44                             0x2db0
#define MGAREG_WR45                             0x2db4
#define MGAREG_WR46                             0x2db8
#define MGAREG_WR47                             0x2dbc
#define MGAREG_WR48                             0x2dc0
#define MGAREG_WR49                             0x2dc4
#define MGAREG_WR50                             0x2dc8
#define MGAREG_WR51                             0x2dcc
#define MGAREG_WR52                             0x2dd0
#define MGAREG_WR53                             0x2dd4
#define MGAREG_WR54                             0x2dd8
#define MGAREG_WR55                             0x2ddc
#define MGAREG_WR56                             0x2de0
#define MGAREG_WR57                             0x2de4
#define MGAREG_WR58                             0x2de8
#define MGAREG_WR59                             0x2dec
#define MGAREG_WR60                             0x2df0
#define MGAREG_WR61                             0x2df4
#define MGAREG_WR62                             0x2df8
#define MGAREG_WR63                             0x2dfc

#define PDEA_pagpxfer_enable			0x2

#define WIA_wmode_suspend			0x0
#define WIA_wmode_start 			0x3
#define WIA_wagp_agp				0x4

#define DC_opcod_line_open 			0x0
#define DC_opcod_autoline_open 			0x1
#define DC_opcod_line_close 			0x2
#define DC_opcod_autoline_close 		0x3
#define DC_opcod_trap 				0x4
#define DC_opcod_texture_trap 			0x6
#define DC_opcod_bitblt 			0x8
#define DC_opcod_iload 				0x9
#define DC_atype_rpl 				0x0
#define DC_atype_rstr 				0x10
#define DC_atype_zi 				0x30
#define DC_atype_blk 				0x40
#define DC_atype_i 				0x70
#define DC_linear_xy 				0x0
#define DC_linear_linear 			0x80
#define DC_zmode_nozcmp 			0x0
#define DC_zmode_ze 				0x200
#define DC_zmode_zne 				0x300
#define DC_zmode_zlt 				0x400
#define DC_zmode_zlte 				0x500
#define DC_zmode_zgt 				0x600
#define DC_zmode_zgte 				0x700
#define DC_solid_disable 			0x0
#define DC_solid_enable 			0x800
#define DC_arzero_disable 			0x0
#define DC_arzero_enable 			0x1000
#define DC_sgnzero_disable 			0x0
#define DC_sgnzero_enable 			0x2000
#define DC_shftzero_disable 			0x0
#define DC_shftzero_enable 			0x4000
#define DC_bop_SHIFT 				16
#define DC_trans_SHIFT 				20
#define DC_bltmod_bmonolef 			0x0
#define DC_bltmod_bmonowf 			0x8000000
#define DC_bltmod_bplan 			0x2000000
#define DC_bltmod_bfcol 			0x4000000
#define DC_bltmod_bu32bgr 			0x6000000
#define DC_bltmod_bu32rgb 			0xe000000
#define DC_bltmod_bu24bgr 			0x16000000
#define DC_bltmod_bu24rgb 			0x1e000000
#define DC_pattern_disable 			0x0
#define DC_pattern_enable 			0x20000000
#define DC_transc_disable 			0x0
#define DC_transc_enable 			0x40000000
#define DC_clipdis_disable 			0x0
#define DC_clipdis_enable 			0x80000000


#define SETADD_mode_vertlist                   	0x0


#define MGA_CLEAR_CMD (DC_opcod_trap | DC_arzero_enable | 		\
		       DC_sgnzero_enable | DC_shftzero_enable | 	\
		       (0xC << DC_bop_SHIFT) | DC_clipdis_enable | 	\
		       DC_solid_enable | DC_transc_enable)


#define MGA_COPY_CMD (DC_opcod_bitblt | DC_atype_rpl | DC_linear_xy |	\
		      DC_solid_disable | DC_arzero_disable | 		\
		      DC_sgnzero_enable | DC_shftzero_enable | 		\