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      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 (at) 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 (at) valinux.com>
     29  */
     30 
     31 #ifndef __MGA_DRV_H__
     32 #define __MGA_DRV_H__
     33 
     34 /* General customization:
     35  */
     36 
     37 #define DRIVER_AUTHOR		"Gareth Hughes, VA Linux Systems Inc."
     38 
     39 #define DRIVER_NAME		"mga"
     40 #define DRIVER_DESC		"Matrox G200/G400"
     41 #define DRIVER_DATE		"20060319"
     42 
     43 #define DRIVER_MAJOR		3
     44 #define DRIVER_MINOR		2
     45 #define DRIVER_PATCHLEVEL	2
     46 
     47 typedef struct drm_mga_primary_buffer {
     48 	u8 *start;
     49 	u8 *end;
     50 	int size;
     51 
     52 	u32 tail;
     53 	int space;
     54 	volatile long wrapped;
     55 
     56 	volatile u32 *status;
     57 
     58 	u32 last_flush;
     59 	u32 last_wrap;
     60 
     61 	u32 high_mark;
     62 } drm_mga_primary_buffer_t;
     63 
     64 typedef struct drm_mga_freelist {
     65 	struct drm_mga_freelist *next;
     66 	struct drm_mga_freelist *prev;
     67 	drm_mga_age_t age;
     68 	struct drm_buf *buf;
     69 } drm_mga_freelist_t;
     70 
     71 typedef struct {
     72 	drm_mga_freelist_t *list_entry;
     73 	int discard;
     74 	int dispatched;
     75 } drm_mga_buf_priv_t;
     76 
     77 typedef struct drm_mga_private {
     78 	drm_mga_primary_buffer_t prim;
     79 	drm_mga_sarea_t *sarea_priv;
     80 
     81 	drm_mga_freelist_t *head;
     82 	drm_mga_freelist_t *tail;
     83 
     84 	unsigned int warp_pipe;
     85 	unsigned long warp_pipe_phys[MGA_MAX_WARP_PIPES];
     86 
     87 	int chipset;
     88 	int usec_timeout;
     89 
     90 	/**
     91 	 * If set, the new DMA initialization sequence was used.  This is
     92 	 * primarilly used to select how the driver should uninitialized its
     93 	 * internal DMA structures.
     94 	 */
     95 	int used_new_dma_init;
     96 
     97 	/**
     98 	 * If AGP memory is used for DMA buffers, this will be the value
     99 	 * \c MGA_PAGPXFER.  Otherwise, it will be zero (for a PCI transfer).
    100 	 */
    101 	u32 dma_access;
    102 
    103 	/**
    104 	 * If AGP memory is used for DMA buffers, this will be the value
    105 	 * \c MGA_WAGP_ENABLE.  Otherwise, it will be zero (for a PCI
    106 	 * transfer).
    107 	 */
    108 	u32 wagp_enable;
    109 
    110 	/**
    111 	 * \name MMIO region parameters.
    112 	 *
    113 	 * \sa drm_mga_private_t::mmio
    114 	 */
    115 	/*@{*/
    116 	u32 mmio_base;			/**< Bus address of base of MMIO. */
    117 	u32 mmio_size;			/**< Size of the MMIO region. */
    118 	/*@}*/
    119 
    120 	u32 clear_cmd;
    121 	u32 maccess;
    122 
    123 	atomic_t vbl_received;		/**< Number of vblanks received. */
    124 	wait_queue_head_t fence_queue;
    125 	atomic_t last_fence_retired;
    126 	u32 next_fence_to_post;
    127 
    128 	unsigned int fb_cpp;
    129 	unsigned int front_offset;
    130 	unsigned int front_pitch;
    131 	unsigned int back_offset;
    132 	unsigned int back_pitch;
    133 
    134 	unsigned int depth_cpp;
    135 	unsigned int depth_offset;
    136 	unsigned int depth_pitch;
    137 
    138 	unsigned int texture_offset;
    139 	unsigned int texture_size;
    140 
    141 	drm_local_map_t *sarea;
    142 	drm_local_map_t *mmio;
    143 	drm_local_map_t *status;
    144 	drm_local_map_t *warp;
    145 	drm_local_map_t *primary;
    146 	drm_local_map_t *agp_textures;
    147 
    148 	unsigned long agp_handle;
    149 	unsigned int agp_size;
    150 } drm_mga_private_t;
    151 
    152 extern struct drm_ioctl_desc mga_ioctls[];
    153 extern int mga_max_ioctl;
    154 
    155 				/* mga_dma.c */
    156 extern int mga_dma_bootstrap(struct drm_device *dev, void *data,
    157 			     struct drm_file *file_priv);
    158 extern int mga_dma_init(struct drm_device *dev, void *data,
    159 			struct drm_file *file_priv);
    160 extern int mga_dma_flush(struct drm_device *dev, void *data,
    161 			 struct drm_file *file_priv);
    162 extern int mga_dma_reset(struct drm_device *dev, void *data,
    163 			 struct drm_file *file_priv);
    164 extern int mga_dma_buffers(struct drm_device *dev, void *data,
    165 			   struct drm_file *file_priv);
    166 extern int mga_driver_load(struct drm_device *dev, unsigned long flags);
    167 extern int mga_driver_unload(struct drm_device * dev);
    168 extern void mga_driver_lastclose(struct drm_device * dev);
    169 extern int mga_driver_dma_quiescent(struct drm_device * dev);
    170 
    171 extern int mga_do_wait_for_idle(drm_mga_private_t * dev_priv);
    172 
    173 extern void mga_do_dma_flush(drm_mga_private_t * dev_priv);
    174 extern void mga_do_dma_wrap_start(drm_mga_private_t * dev_priv);
    175 extern void mga_do_dma_wrap_end(drm_mga_private_t * dev_priv);
    176 
    177 extern int mga_freelist_put(struct drm_device * dev, struct drm_buf * buf);
    178 
    179 				/* mga_warp.c */
    180 extern unsigned int mga_warp_microcode_size(const drm_mga_private_t * dev_priv);
    181 extern int mga_warp_install_microcode(drm_mga_private_t * dev_priv);
    182 extern int mga_warp_init(drm_mga_private_t * dev_priv);
    183 
    184 				/* mga_irq.c */
    185 extern int mga_enable_vblank(struct drm_device *dev, unsigned int crtc);
    186 extern void mga_disable_vblank(struct drm_device *dev, unsigned int crtc);
    187 extern u32 mga_get_vblank_counter(struct drm_device *dev, unsigned int crtc);
    188 extern int mga_driver_fence_wait(struct drm_device * dev, unsigned int *sequence);
    189 extern int mga_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence);
    190 extern irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS);
    191 extern void mga_driver_irq_preinstall(struct drm_device * dev);
    192 extern int mga_driver_irq_postinstall(struct drm_device * dev);
    193 extern void mga_driver_irq_uninstall(struct drm_device * dev);
    194 extern long mga_compat_ioctl(struct file *filp, unsigned int cmd,
    195 			     unsigned long arg);
    196 
    197 #define mga_flush_write_combine()	DRM_WRITEMEMORYBARRIER()
    198 
    199 #if defined(__linux__) && defined(__alpha__)
    200 #define MGA_BASE( reg )		((unsigned long)(dev_priv->mmio->handle))
    201 #define MGA_ADDR( reg )		(MGA_BASE(reg) + reg)
    202 
    203 #define MGA_DEREF( reg )	*(volatile u32 *)MGA_ADDR( reg )
    204 #define MGA_DEREF8( reg )	*(volatile u8 *)MGA_ADDR( reg )
    205 
    206 #define MGA_READ( reg )		(_MGA_READ((u32 *)MGA_ADDR(reg)))
    207 #define MGA_READ8( reg )	(_MGA_READ((u8 *)MGA_ADDR(reg)))
    208 #define MGA_WRITE( reg, val )	do { DRM_WRITEMEMORYBARRIER(); MGA_DEREF( reg ) = val; } while (0)
    209 #define MGA_WRITE8( reg, val )  do { DRM_WRITEMEMORYBARRIER(); MGA_DEREF8( reg ) = val; } while (0)
    210 
    211 static inline u32 _MGA_READ(u32 * addr)
    212 {
    213 	DRM_MEMORYBARRIER();
    214 	return *(volatile u32 *)addr;
    215 }
    216 #else
    217 #define MGA_READ8( reg )	DRM_READ8(dev_priv->mmio, (reg))
    218 #define MGA_READ( reg )		DRM_READ32(dev_priv->mmio, (reg))
    219 #define MGA_WRITE8( reg, val )  DRM_WRITE8(dev_priv->mmio, (reg), (val))
    220 #define MGA_WRITE( reg, val )	DRM_WRITE32(dev_priv->mmio, (reg), (val))
    221 #endif
    222 
    223 #define DWGREG0		0x1c00
    224 #define DWGREG0_END	0x1dff
    225 #define DWGREG1		0x2c00
    226 #define DWGREG1_END	0x2dff
    227 
    228 #define ISREG0(r)	(r >= DWGREG0 && r <= DWGREG0_END)
    229 #define DMAREG0(r)	(u8)((r - DWGREG0) >> 2)
    230 #define DMAREG1(r)	(u8)(((r - DWGREG1) >> 2) | 0x80)
    231 #define DMAREG(r)	(ISREG0(r) ? DMAREG0(r) : DMAREG1(r))
    232 
    233 /* ================================================================
    234  * Helper macross...
    235  */
    236 
    237 #define MGA_EMIT_STATE( dev_priv, dirty )				\
    238 do {									\
    239 	if ( (dirty) & ~MGA_UPLOAD_CLIPRECTS ) {			\
    240 		if ( dev_priv->chipset >= MGA_CARD_TYPE_G400 ) {	\
    241 			mga_g400_emit_state( dev_priv );		\
    242 		} else {						\
    243 			mga_g200_emit_state( dev_priv );		\
    244 		}							\
    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 	}								\
    312 } while (0)
    313 
    314 #define FLUSH_DMA()							\
    315 do {									\
    316 	if ( 0 ) {							\
    317 		DRM_INFO( "\n" );					\
    318 		DRM_INFO( "   tail=0x%06x head=0x%06lx\n",		\
    319 			  dev_priv->prim.tail,				\
    320 			  MGA_READ( MGA_PRIMADDRESS ) -			\
    321 			  dev_priv->primary->offset );			\
    322 	}								\
    323 	if ( !test_bit( 0, &dev_priv->prim.wrapped ) ) {		\
    324 		if ( dev_priv->prim.space <				\
    325 		     dev_priv->prim.high_mark ) {			\
    326 			mga_do_dma_wrap_start( dev_priv );		\
    327 		} else {						\
    328 			mga_do_dma_flush( dev_priv );			\
    329 		}							\
    330 	}								\
    331 } while (0)
    332 
    333 /* Never use this, always use DMA_BLOCK(...) for primary DMA output.
    334  */
    335 #define DMA_WRITE( offset, val )					\
    336 do {									\
    337 	if ( MGA_VERBOSE ) {						\
    338 		DRM_INFO( "   DMA_WRITE( 0x%08x ) at 0x%04zx\n",	\
    339 			  (u32)(val), write + (offset) * sizeof(u32) );	\
    340 	}								\
    341 	*(volatile u32 *)(prim + write + (offset) * sizeof(u32)) = val;	\
    342 } while (0)
    343 
    344 #define DMA_BLOCK( reg0, val0, reg1, val1, reg2, val2, reg3, val3 )	\
    345 do {									\
    346 	DMA_WRITE( 0, ((DMAREG( reg0 ) << 0) |				\
    347 		       (DMAREG( reg1 ) << 8) |				\
    348 		       (DMAREG( reg2 ) << 16) |				\
    349 		       (DMAREG( reg3 ) << 24)) );			\
    350 	DMA_WRITE( 1, val0 );						\
    351 	DMA_WRITE( 2, val1 );						\
    352 	DMA_WRITE( 3, val2 );						\
    353 	DMA_WRITE( 4, val3 );						\
    354 	write += DMA_BLOCK_SIZE;					\
    355 } while (0)
    356 
    357 /* Buffer aging via primary DMA stream head pointer.
    358  */
    359 
    360 #define SET_AGE( age, h, w )						\
    361 do {									\
    362 	(age)->head = h;						\
    363 	(age)->wrap = w;						\
    364 } while (0)
    365 
    366 #define TEST_AGE( age, h, w )		( (age)->wrap < w ||		\
    367 					  ( (age)->wrap == w &&		\
    368 					    (age)->head < h ) )
    369 
    370 #define AGE_BUFFER( buf_priv )						\
    371 do {									\
    372 	drm_mga_freelist_t *entry = (buf_priv)->list_entry;		\
    373 	if ( (buf_priv)->dispatched ) {					\
    374 		entry->age.head = (dev_priv->prim.tail +		\
    375 				   dev_priv->primary->offset);		\
    376 		entry->age.wrap = dev_priv->sarea_priv->last_wrap;	\
    377 	} else {							\
    378 		entry->age.head = 0;					\
    379 		entry->age.wrap = 0;					\
    380 	}								\
    381 } while (0)
    382 
    383 #define MGA_ENGINE_IDLE_MASK		(MGA_SOFTRAPEN |		\
    384 					 MGA_DWGENGSTS |		\
    385 					 MGA_ENDPRDMASTS)
    386 #define MGA_DMA_IDLE_MASK		(MGA_SOFTRAPEN |		\
    387 					 MGA_ENDPRDMASTS)
    388 
    389 #define MGA_DMA_DEBUG			0
    390 
    391 /* A reduced set of the mga registers.
    392  */
    393 #define MGA_CRTC_INDEX			0x1fd4
    394 #define MGA_CRTC_DATA			0x1fd5
    395 
    396 /* CRTC11 */
    397 #define MGA_VINTCLR			(1 << 4)
    398 #define MGA_VINTEN			(1 << 5)
    399 
    400 #define MGA_ALPHACTRL			0x2c7c
    401 #define MGA_AR0				0x1c60
    402 #define MGA_AR1				0x1c64
    403 #define MGA_AR2				0x1c68
    404 #define MGA_AR3				0x1c6c
    405 #define MGA_AR4				0x1c70
    406 #define MGA_AR5				0x1c74
    407 #define MGA_AR6				0x1c78
    408 
    409 #define MGA_CXBNDRY			0x1c80
    410 #define MGA_CXLEFT			0x1ca0
    411 #define MGA_CXRIGHT			0x1ca4
    412 
    413 #define MGA_DMAPAD			0x1c54
    414 #define MGA_DSTORG			0x2cb8
    415 #define MGA_DWGCTL			0x1c00
    416 #	define MGA_OPCOD_MASK			(15 << 0)
    417 #	define MGA_OPCOD_TRAP			(4 << 0)
    418 #	define MGA_OPCOD_TEXTURE_TRAP		(6 << 0)
    419 #	define MGA_OPCOD_BITBLT			(8 << 0)
    420 #	define MGA_OPCOD_ILOAD			(9 << 0)
    421 #	define MGA_ATYPE_MASK			(7 << 4)
    422 #	define MGA_ATYPE_RPL			(0 << 4)
    423 #	define MGA_ATYPE_RSTR			(1 << 4)
    424 #	define MGA_ATYPE_ZI			(3 << 4)
    425 #	define MGA_ATYPE_BLK			(4 << 4)
    426 #	define MGA_ATYPE_I			(7 << 4)
    427 #	define MGA_LINEAR			(1 << 7)
    428 #	define MGA_ZMODE_MASK			(7 << 8)
    429 #	define MGA_ZMODE_NOZCMP			(0 << 8)
    430 #	define MGA_ZMODE_ZE			(2 << 8)
    431 #	define MGA_ZMODE_ZNE			(3 << 8)
    432 #	define MGA_ZMODE_ZLT			(4 << 8)
    433 #	define MGA_ZMODE_ZLTE			(5 << 8)
    434 #	define MGA_ZMODE_ZGT			(6 << 8)
    435 #	define MGA_ZMODE_ZGTE			(7 << 8)
    436 #	define MGA_SOLID			(1 << 11)
    437 #	define MGA_ARZERO			(1 << 12)
    438 #	define MGA_SGNZERO			(1 << 13)
    439 #	define MGA_SHIFTZERO			(1 << 14)
    440 #	define MGA_BOP_MASK			(15 << 16)
    441 #	define MGA_BOP_ZERO			(0 << 16)
    442 #	define MGA_BOP_DST			(10 << 16)
    443 #	define MGA_BOP_SRC			(12 << 16)
    444 #	define MGA_BOP_ONE			(15 << 16)
    445 #	define MGA_TRANS_SHIFT			20
    446 #	define MGA_TRANS_MASK			(15 << 20)
    447 #	define MGA_BLTMOD_MASK			(15 << 25)
    448 #	define MGA_BLTMOD_BMONOLEF		(0 << 25)
    449 #	define MGA_BLTMOD_BMONOWF		(4 << 25)
    450 #	define MGA_BLTMOD_PLAN			(1 << 25)
    451 #	define MGA_BLTMOD_BFCOL			(2 << 25)
    452 #	define MGA_BLTMOD_BU32BGR		(3 << 25)
    453 #	define MGA_BLTMOD_BU32RGB		(7 << 25)
    454 #	define MGA_BLTMOD_BU24BGR		(11 << 25)
    455 #	define MGA_BLTMOD_BU24RGB		(15 << 25)
    456 #	define MGA_PATTERN			(1 << 29)
    457 #	define MGA_TRANSC			(1 << 30)
    458 #	define MGA_CLIPDIS			(1 << 31)
    459 #define MGA_DWGSYNC			0x2c4c
    460 
    461 #define MGA_FCOL			0x1c24
    462 #define MGA_FIFOSTATUS			0x1e10
    463 #define MGA_FOGCOL			0x1cf4
    464 #define MGA_FXBNDRY			0x1c84
    465 #define MGA_FXLEFT			0x1ca8
    466 #define MGA_FXRIGHT			0x1cac
    467 
    468 #define MGA_ICLEAR			0x1e18
    469 #	define MGA_SOFTRAPICLR			(1 << 0)
    470 #	define MGA_VLINEICLR			(1 << 5)
    471 #define MGA_IEN				0x1e1c
    472 #	define MGA_SOFTRAPIEN			(1 << 0)
    473 #	define MGA_VLINEIEN			(1 << 5)
    474 
    475 #define MGA_LEN				0x1c5c
    476 
    477 #define MGA_MACCESS			0x1c04
    478 
    479 #define MGA_PITCH			0x1c8c
    480 #define MGA_PLNWT			0x1c1c
    481 #define MGA_PRIMADDRESS			0x1e58
    482 #	define MGA_DMA_GENERAL			(0 << 0)
    483 #	define MGA_DMA_BLIT			(1 << 0)
    484 #	define MGA_DMA_VECTOR			(2 << 0)
    485 #	define MGA_DMA_VERTEX			(3 << 0)
    486 #define MGA_PRIMEND			0x1e5c
    487 #	define MGA_PRIMNOSTART			(1 << 0)
    488 #	define MGA_PAGPXFER			(1 << 1)
    489 #define MGA_PRIMPTR			0x1e50
    490 #	define MGA_PRIMPTREN0			(1 << 0)
    491 #	define MGA_PRIMPTREN1			(1 << 1)
    492 
    493 #define MGA_RST				0x1e40
    494 #	define MGA_SOFTRESET			(1 << 0)
    495 #	define MGA_SOFTEXTRST			(1 << 1)
    496 
    497 #define MGA_SECADDRESS			0x2c40
    498 #define MGA_SECEND			0x2c44
    499 #define MGA_SETUPADDRESS		0x2cd0
    500 #define MGA_SETUPEND			0x2cd4
    501 #define MGA_SGN				0x1c58
    502 #define MGA_SOFTRAP			0x2c48
    503 #define MGA_SRCORG			0x2cb4
    504 #	define MGA_SRMMAP_MASK			(1 << 0)
    505 #	define MGA_SRCMAP_FB			(0 << 0)
    506 #	define MGA_SRCMAP_SYSMEM		(1 << 0)
    507 #	define MGA_SRCACC_MASK			(1 << 1)
    508 #	define MGA_SRCACC_PCI			(0 << 1)
    509 #	define MGA_SRCACC_AGP			(1 << 1)
    510 #define MGA_STATUS			0x1e14
    511 #	define MGA_SOFTRAPEN			(1 << 0)
    512 #	define MGA_VSYNCPEN			(1 << 4)
    513 #	define MGA_VLINEPEN			(1 << 5)
    514 #	define MGA_DWGENGSTS			(1 << 16)
    515 #	define MGA_ENDPRDMASTS			(1 << 17)
    516 #define MGA_STENCIL			0x2cc8
    517 #define MGA_STENCILCTL			0x2ccc
    518 
    519 #define MGA_TDUALSTAGE0			0x2cf8
    520 #define MGA_TDUALSTAGE1			0x2cfc
    521 #define MGA_TEXBORDERCOL		0x2c5c
    522 #define MGA_TEXCTL			0x2c30
    523 #define MGA_TEXCTL2			0x2c3c
    524 #	define MGA_DUALTEX			(1 << 7)
    525 #	define MGA_G400_TC2_MAGIC		(1 << 15)
    526 #	define MGA_MAP1_ENABLE			(1 << 31)
    527 #define MGA_TEXFILTER			0x2c58
    528 #define MGA_TEXHEIGHT			0x2c2c
    529 #define MGA_TEXORG			0x2c24
    530 #	define MGA_TEXORGMAP_MASK		(1 << 0)
    531 #	define MGA_TEXORGMAP_FB			(0 << 0)
    532 #	define MGA_TEXORGMAP_SYSMEM		(1 << 0)
    533 #	define MGA_TEXORGACC_MASK		(1 << 1)
    534 #	define MGA_TEXORGACC_PCI		(0 << 1)
    535 #	define MGA_TEXORGACC_AGP		(1 << 1)
    536 #define MGA_TEXORG1			0x2ca4
    537 #define MGA_TEXORG2			0x2ca8
    538 #define MGA_TEXORG3			0x2cac
    539 #define MGA_TEXORG4			0x2cb0
    540 #define MGA_TEXTRANS			0x2c34
    541 #define MGA_TEXTRANSHIGH		0x2c38
    542 #define MGA_TEXWIDTH			0x2c28
    543 
    544 #define MGA_WACCEPTSEQ			0x1dd4
    545 #define MGA_WCODEADDR			0x1e6c
    546 #define MGA_WFLAG			0x1dc4
    547 #define MGA_WFLAG1			0x1de0
    548 #define MGA_WFLAGNB			0x1e64
    549 #define MGA_WFLAGNB1			0x1e08
    550 #define MGA_WGETMSB			0x1dc8
    551 #define MGA_WIADDR			0x1dc0
    552 #define MGA_WIADDR2			0x1dd8
    553 #	define MGA_WMODE_SUSPEND		(0 << 0)
    554 #	define MGA_WMODE_RESUME			(1 << 0)
    555 #	define MGA_WMODE_JUMP			(2 << 0)
    556 #	define MGA_WMODE_START			(3 << 0)
    557 #	define MGA_WAGP_ENABLE			(1 << 2)
    558 #define MGA_WMISC			0x1e70
    559 #	define MGA_WUCODECACHE_ENABLE		(1 << 0)
    560 #	define MGA_WMASTER_ENABLE		(1 << 1)
    561 #	define MGA_WCACHEFLUSH_ENABLE		(1 << 3)
    562 #define MGA_WVRTXSZ			0x1dcc
    563 
    564 #define MGA_YBOT			0x1c9c
    565 #define MGA_YDST			0x1c90
    566 #define MGA_YDSTLEN			0x1c88
    567 #define MGA_YDSTORG			0x1c94
    568 #define MGA_YTOP			0x1c98
    569 
    570 #define MGA_ZORG			0x1c0c
    571 
    572 /* This finishes the current batch of commands
    573  */
    574 #define MGA_EXEC			0x0100
    575 
    576 /* AGP PLL encoding (for G200 only).
    577  */
    578 #define MGA_AGP_PLL			0x1e4c
    579 #	define MGA_AGP2XPLL_DISABLE		(0 << 0)
    580 #	define MGA_AGP2XPLL_ENABLE		(1 << 0)
    581 
    582 /* Warp registers
    583  */
    584 #define MGA_WR0				0x2d00
    585 #define MGA_WR1				0x2d04
    586 #define MGA_WR2				0x2d08
    587 #define MGA_WR3				0x2d0c
    588 #define MGA_WR4				0x2d10
    589 #define MGA_WR5				0x2d14
    590 #define MGA_WR6				0x2d18
    591 #define MGA_WR7				0x2d1c
    592 #define MGA_WR8				0x2d20
    593 #define MGA_WR9				0x2d24
    594 #define MGA_WR10			0x2d28
    595 #define MGA_WR11			0x2d2c
    596 #define MGA_WR12			0x2d30
    597 #define MGA_WR13			0x2d34
    598 #define MGA_WR14			0x2d38
    599 #define MGA_WR15			0x2d3c
    600 #define MGA_WR16			0x2d40
    601 #define MGA_WR17			0x2d44
    602 #define MGA_WR18			0x2d48
    603 #define MGA_WR19			0x2d4c
    604 #define MGA_WR20			0x2d50
    605 #define MGA_WR21			0x2d54
    606 #define MGA_WR22			0x2d58
    607 #define MGA_WR23			0x2d5c
    608 #define MGA_WR24			0x2d60
    609 #define MGA_WR25			0x2d64
    610 #define MGA_WR26			0x2d68
    611 #define MGA_WR27			0x2d6c
    612 #define MGA_WR28			0x2d70
    613 #define MGA_WR29			0x2d74
    614 #define MGA_WR30			0x2d78
    615 #define MGA_WR31			0x2d7c
    616 #define MGA_WR32			0x2d80
    617 #define MGA_WR33			0x2d84
    618 #define MGA_WR34			0x2d88
    619 #define MGA_WR35			0x2d8c
    620 #define MGA_WR36			0x2d90
    621 #define MGA_WR37			0x2d94
    622 #define MGA_WR38			0x2d98
    623 #define MGA_WR39			0x2d9c
    624 #define MGA_WR40			0x2da0
    625 #define MGA_WR41			0x2da4
    626 #define MGA_WR42			0x2da8
    627 #define MGA_WR43			0x2dac
    628 #define MGA_WR44			0x2db0
    629 #define MGA_WR45			0x2db4
    630 #define MGA_WR46			0x2db8
    631 #define MGA_WR47			0x2dbc
    632 #define MGA_WR48			0x2dc0
    633 #define MGA_WR49			0x2dc4
    634 #define MGA_WR50			0x2dc8
    635 #define MGA_WR51			0x2dcc
    636 #define MGA_WR52			0x2dd0
    637 #define MGA_WR53			0x2dd4
    638 #define MGA_WR54			0x2dd8
    639 #define MGA_WR55			0x2ddc
    640 #define MGA_WR56			0x2de0
    641 #define MGA_WR57			0x2de4
    642 #define MGA_WR58			0x2de8
    643 #define MGA_WR59			0x2dec
    644 #define MGA_WR60			0x2df0
    645 #define MGA_WR61			0x2df4
    646 #define MGA_WR62			0x2df8
    647 #define MGA_WR63			0x2dfc
    648 #	define MGA_G400_WR_MAGIC		(1 << 6)
    649 #	define MGA_G400_WR56_MAGIC		0x46480000	/* 12800.0f */
    650 
    651 #define MGA_ILOAD_ALIGN		64
    652 #define MGA_ILOAD_MASK		(MGA_ILOAD_ALIGN - 1)
    653 
    654 #define MGA_DWGCTL_FLUSH	(MGA_OPCOD_TEXTURE_TRAP |		\
    655 				 MGA_ATYPE_I |				\
    656 				 MGA_ZMODE_NOZCMP |			\
    657 				 MGA_ARZERO |				\
    658 				 MGA_SGNZERO |				\
    659 				 MGA_BOP_SRC |				\
    660 				 (15 << MGA_TRANS_SHIFT))
    661 
    662 #define MGA_DWGCTL_CLEAR	(MGA_OPCOD_TRAP |			\
    663 				 MGA_ZMODE_NOZCMP |			\
    664 				 MGA_SOLID |				\
    665 				 MGA_ARZERO |				\
    666 				 MGA_SGNZERO |				\
    667 				 MGA_SHIFTZERO |			\
    668 				 MGA_BOP_SRC |				\
    669 				 (0 << MGA_TRANS_SHIFT) |		\
    670 				 MGA_BLTMOD_BMONOLEF |			\
    671 				 MGA_TRANSC |				\
    672 				 MGA_CLIPDIS)
    673 
    674 #define MGA_DWGCTL_COPY		(MGA_OPCOD_BITBLT |			\
    675 				 MGA_ATYPE_RPL |			\
    676 				 MGA_SGNZERO |				\
    677 				 MGA_SHIFTZERO |			\
    678 				 MGA_BOP_SRC |				\
    679 				 (0 << MGA_TRANS_SHIFT) |		\
    680 				 MGA_BLTMOD_BFCOL |			\
    681 				 MGA_CLIPDIS)
    682 
    683 /* Simple idle test.
    684  */
    685 static __inline__ int mga_is_idle(drm_mga_private_t * dev_priv)
    686 {
    687 	u32 status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK;
    688 	return (status == MGA_ENDPRDMASTS);
    689 }
    690 
    691 #endif
    692