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1 /* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
2  * All Rights Reserved.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the
6  * "Software"), to deal in the Software without restriction, including
7  * without limitation the rights to use, copy, modify, merge, publish,
8  * distribute, sub license, and/or sell copies of the Software, and to
9  * permit persons to whom the Software is furnished to do so, subject to
10  * the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the
13  * next paragraph) shall be included in all copies or substantial portions
14  * of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
19  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
20  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
21  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
22  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23  */
24 
25 #ifndef _I915_REG_H_
26 #define _I915_REG_H_
27 
28 /*
29  * The Bridge device's PCI config space has information about the
30  * fb aperture size and the amount of pre-reserved memory.
31  */
32 #define INTEL_GMCH_CTRL		0x52
33 #define INTEL_GMCH_ENABLED	0x4
34 #define INTEL_GMCH_MEM_MASK	0x1
35 #define INTEL_GMCH_MEM_64M	0x1
36 #define INTEL_GMCH_MEM_128M	0
37 
38 #define INTEL_GMCH_GMS_MASK		(0xf << 4)
39 #define INTEL_855_GMCH_GMS_DISABLED	(0x0 << 4)
40 #define INTEL_855_GMCH_GMS_STOLEN_1M	(0x1 << 4)
41 #define INTEL_855_GMCH_GMS_STOLEN_4M	(0x2 << 4)
42 #define INTEL_855_GMCH_GMS_STOLEN_8M	(0x3 << 4)
43 #define INTEL_855_GMCH_GMS_STOLEN_16M	(0x4 << 4)
44 #define INTEL_855_GMCH_GMS_STOLEN_32M	(0x5 << 4)
45 
46 #define INTEL_915G_GMCH_GMS_STOLEN_48M	(0x6 << 4)
47 #define INTEL_915G_GMCH_GMS_STOLEN_64M	(0x7 << 4)
48 #define INTEL_GMCH_GMS_STOLEN_128M	(0x8 << 4)
49 #define INTEL_GMCH_GMS_STOLEN_256M	(0x9 << 4)
50 #define INTEL_GMCH_GMS_STOLEN_96M	(0xa << 4)
51 #define INTEL_GMCH_GMS_STOLEN_160M	(0xb << 4)
52 #define INTEL_GMCH_GMS_STOLEN_224M	(0xc << 4)
53 #define INTEL_GMCH_GMS_STOLEN_352M	(0xd << 4)
54 
55 /* PCI config space */
56 
57 #define HPLLCC	0xc0 /* 855 only */
58 #define   GC_CLOCK_CONTROL_MASK		(3 << 0)
59 #define   GC_CLOCK_133_200		(0 << 0)
60 #define   GC_CLOCK_100_200		(1 << 0)
61 #define   GC_CLOCK_100_133		(2 << 0)
62 #define   GC_CLOCK_166_250		(3 << 0)
63 #define GCFGC	0xf0 /* 915+ only */
64 #define   GC_LOW_FREQUENCY_ENABLE	(1 << 7)
65 #define   GC_DISPLAY_CLOCK_190_200_MHZ	(0 << 4)
66 #define   GC_DISPLAY_CLOCK_333_MHZ	(4 << 4)
67 #define   GC_DISPLAY_CLOCK_MASK		(7 << 4)
68 #define LBB	0xf4
69 
70 /* VGA stuff */
71 
72 #define VGA_ST01_MDA 0x3ba
73 #define VGA_ST01_CGA 0x3da
74 
75 #define VGA_MSR_WRITE 0x3c2
76 #define VGA_MSR_READ 0x3cc
77 #define   VGA_MSR_MEM_EN (1<<1)
78 #define   VGA_MSR_CGA_MODE (1<<0)
79 
80 #define VGA_SR_INDEX 0x3c4
81 #define VGA_SR_DATA 0x3c5
82 
83 #define VGA_AR_INDEX 0x3c0
84 #define   VGA_AR_VID_EN (1<<5)
85 #define VGA_AR_DATA_WRITE 0x3c0
86 #define VGA_AR_DATA_READ 0x3c1
87 
88 #define VGA_GR_INDEX 0x3ce
89 #define VGA_GR_DATA 0x3cf
90 /* GR05 */
91 #define   VGA_GR_MEM_READ_MODE_SHIFT 3
92 #define     VGA_GR_MEM_READ_MODE_PLANE 1
93 /* GR06 */
94 #define   VGA_GR_MEM_MODE_MASK 0xc
95 #define   VGA_GR_MEM_MODE_SHIFT 2
96 #define   VGA_GR_MEM_A0000_AFFFF 0
97 #define   VGA_GR_MEM_A0000_BFFFF 1
98 #define   VGA_GR_MEM_B0000_B7FFF 2
99 #define   VGA_GR_MEM_B0000_BFFFF 3
100 
101 #define VGA_DACMASK 0x3c6
102 #define VGA_DACRX 0x3c7
103 #define VGA_DACWX 0x3c8
104 #define VGA_DACDATA 0x3c9
105 
106 #define VGA_CR_INDEX_MDA 0x3b4
107 #define VGA_CR_DATA_MDA 0x3b5
108 #define VGA_CR_INDEX_CGA 0x3d4
109 #define VGA_CR_DATA_CGA 0x3d5
110 
111 /*
112  * Memory interface instructions used by the kernel
113  */
114 #define MI_INSTR(opcode, flags) (((opcode) << 23) | (flags))
115 
116 #define MI_NOOP			MI_INSTR(0, 0)
117 #define MI_USER_INTERRUPT	MI_INSTR(0x02, 0)
118 #define MI_WAIT_FOR_EVENT       MI_INSTR(0x03, 0)
119 #define   MI_WAIT_FOR_PLANE_B_FLIP      (1<<6)
120 #define   MI_WAIT_FOR_PLANE_A_FLIP      (1<<2)
121 #define   MI_WAIT_FOR_PLANE_A_SCANLINES (1<<1)
122 #define MI_FLUSH		MI_INSTR(0x04, 0)
123 #define   MI_READ_FLUSH		(1 << 0)
124 #define   MI_EXE_FLUSH		(1 << 1)
125 #define   MI_NO_WRITE_FLUSH	(1 << 2)
126 #define   MI_SCENE_COUNT	(1 << 3) /* just increment scene count */
127 #define   MI_END_SCENE		(1 << 4) /* flush binner and incr scene count */
128 #define MI_BATCH_BUFFER_END	MI_INSTR(0x0a, 0)
129 #define MI_REPORT_HEAD		MI_INSTR(0x07, 0)
130 #define MI_LOAD_SCAN_LINES_INCL MI_INSTR(0x12, 0)
131 #define MI_STORE_DWORD_IMM	MI_INSTR(0x20, 1)
132 #define   MI_MEM_VIRTUAL	(1 << 22) /* 965+ only */
133 #define MI_STORE_DWORD_INDEX	MI_INSTR(0x21, 1)
134 #define   MI_STORE_DWORD_INDEX_SHIFT 2
135 #define MI_LOAD_REGISTER_IMM	MI_INSTR(0x22, 1)
136 #define MI_BATCH_BUFFER		MI_INSTR(0x30, 1)
137 #define   MI_BATCH_NON_SECURE	(1)
138 #define   MI_BATCH_NON_SECURE_I965 (1<<8)
139 #define MI_BATCH_BUFFER_START	MI_INSTR(0x31, 0)
140 
141 /*
142  * 3D instructions used by the kernel
143  */
144 #define GFX_INSTR(opcode, flags) ((0x3 << 29) | ((opcode) << 24) | (flags))
145 
146 #define GFX_OP_RASTER_RULES    ((0x3<<29)|(0x7<<24))
147 #define GFX_OP_SCISSOR         ((0x3<<29)|(0x1c<<24)|(0x10<<19))
148 #define   SC_UPDATE_SCISSOR       (0x1<<1)
149 #define   SC_ENABLE_MASK          (0x1<<0)
150 #define   SC_ENABLE               (0x1<<0)
151 #define GFX_OP_LOAD_INDIRECT   ((0x3<<29)|(0x1d<<24)|(0x7<<16))
152 #define GFX_OP_SCISSOR_INFO    ((0x3<<29)|(0x1d<<24)|(0x81<<16)|(0x1))
153 #define   SCI_YMIN_MASK      (0xffff<<16)
154 #define   SCI_XMIN_MASK      (0xffff<<0)
155 #define   SCI_YMAX_MASK      (0xffff<<16)
156 #define   SCI_XMAX_MASK      (0xffff<<0)
157 #define GFX_OP_SCISSOR_ENABLE	 ((0x3<<29)|(0x1c<<24)|(0x10<<19))
158 #define GFX_OP_SCISSOR_RECT	 ((0x3<<29)|(0x1d<<24)|(0x81<<16)|1)
159 #define GFX_OP_COLOR_FACTOR      ((0x3<<29)|(0x1d<<24)|(0x1<<16)|0x0)
160 #define GFX_OP_STIPPLE           ((0x3<<29)|(0x1d<<24)|(0x83<<16))
161 #define GFX_OP_MAP_INFO          ((0x3<<29)|(0x1d<<24)|0x4)
162 #define GFX_OP_DESTBUFFER_VARS   ((0x3<<29)|(0x1d<<24)|(0x85<<16)|0x0)
163 #define GFX_OP_DESTBUFFER_INFO	 ((0x3<<29)|(0x1d<<24)|(0x8e<<16)|1)
164 #define GFX_OP_DRAWRECT_INFO     ((0x3<<29)|(0x1d<<24)|(0x80<<16)|(0x3))
165 #define GFX_OP_DRAWRECT_INFO_I965  ((0x7900<<16)|0x2)
166 #define SRC_COPY_BLT_CMD                ((2<<29)|(0x43<<22)|4)
167 #define XY_SRC_COPY_BLT_CMD		((2<<29)|(0x53<<22)|6)
168 #define XY_MONO_SRC_COPY_IMM_BLT	((2<<29)|(0x71<<22)|5)
169 #define XY_SRC_COPY_BLT_WRITE_ALPHA	(1<<21)
170 #define XY_SRC_COPY_BLT_WRITE_RGB	(1<<20)
171 #define   BLT_DEPTH_8			(0<<24)
172 #define   BLT_DEPTH_16_565		(1<<24)
173 #define   BLT_DEPTH_16_1555		(2<<24)
174 #define   BLT_DEPTH_32			(3<<24)
175 #define   BLT_ROP_GXCOPY		(0xcc<<16)
176 #define XY_SRC_COPY_BLT_SRC_TILED	(1<<15) /* 965+ only */
177 #define XY_SRC_COPY_BLT_DST_TILED	(1<<11) /* 965+ only */
178 #define CMD_OP_DISPLAYBUFFER_INFO ((0x0<<29)|(0x14<<23)|2)
179 #define   ASYNC_FLIP                (1<<22)
180 #define   DISPLAY_PLANE_A           (0<<20)
181 #define   DISPLAY_PLANE_B           (1<<20)
182 
183 /*
184  * Fence registers
185  */
186 #define FENCE_REG_830_0			0x2000
187 #define FENCE_REG_945_8			0x3000
188 #define   I830_FENCE_START_MASK		0x07f80000
189 #define   I830_FENCE_TILING_Y_SHIFT	12
190 #define   I830_FENCE_SIZE_BITS(size)	((ffs((size) >> 19) - 1) << 8)
191 #define   I830_FENCE_PITCH_SHIFT	4
192 #define   I830_FENCE_REG_VALID		(1<<0)
193 
194 #define   I915_FENCE_START_MASK		0x0ff00000
195 #define   I915_FENCE_SIZE_BITS(size)	((ffs((size) >> 20) - 1) << 8)
196 
197 #define FENCE_REG_965_0			0x03000
198 #define   I965_FENCE_PITCH_SHIFT	2
199 #define   I965_FENCE_TILING_Y_SHIFT	1
200 #define   I965_FENCE_REG_VALID		(1<<0)
201 
202 /*
203  * Instruction and interrupt control regs
204  */
205 #define PRB0_TAIL	0x02030
206 #define PRB0_HEAD	0x02034
207 #define PRB0_START	0x02038
208 #define PRB0_CTL	0x0203c
209 #define   TAIL_ADDR		0x001FFFF8
210 #define   HEAD_WRAP_COUNT	0xFFE00000
211 #define   HEAD_WRAP_ONE		0x00200000
212 #define   HEAD_ADDR		0x001FFFFC
213 #define   RING_NR_PAGES		0x001FF000
214 #define   RING_REPORT_MASK	0x00000006
215 #define   RING_REPORT_64K	0x00000002
216 #define   RING_REPORT_128K	0x00000004
217 #define   RING_NO_REPORT	0x00000000
218 #define   RING_VALID_MASK	0x00000001
219 #define   RING_VALID		0x00000001
220 #define   RING_INVALID		0x00000000
221 #define PRB1_TAIL	0x02040 /* 915+ only */
222 #define PRB1_HEAD	0x02044 /* 915+ only */
223 #define PRB1_START	0x02048 /* 915+ only */
224 #define PRB1_CTL	0x0204c /* 915+ only */
225 #define ACTHD_I965	0x02074
226 #define HWS_PGA		0x02080
227 #define HWS_ADDRESS_MASK	0xfffff000
228 #define HWS_START_ADDRESS_SHIFT	4
229 #define IPEIR		0x02088
230 #define NOPID		0x02094
231 #define HWSTAM		0x02098
232 #define SCPD0		0x0209c /* 915+ only */
233 #define IER		0x020a0
234 #define IIR		0x020a4
235 #define IMR		0x020a8
236 #define ISR		0x020ac
237 #define   I915_PIPE_CONTROL_NOTIFY_INTERRUPT		(1<<18)
238 #define   I915_DISPLAY_PORT_INTERRUPT			(1<<17)
239 #define   I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT	(1<<15)
240 #define   I915_GMCH_THERMAL_SENSOR_EVENT_INTERRUPT	(1<<14)
241 #define   I915_HWB_OOM_INTERRUPT			(1<<13)
242 #define   I915_SYNC_STATUS_INTERRUPT			(1<<12)
243 #define   I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT	(1<<11)
244 #define   I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT	(1<<10)
245 #define   I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT	(1<<9)
246 #define   I915_DISPLAY_PLANE_C_FLIP_PENDING_INTERRUPT	(1<<8)
247 #define   I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT		(1<<7)
248 #define   I915_DISPLAY_PIPE_A_EVENT_INTERRUPT		(1<<6)
249 #define   I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT		(1<<5)
250 #define   I915_DISPLAY_PIPE_B_EVENT_INTERRUPT		(1<<4)
251 #define   I915_DEBUG_INTERRUPT				(1<<2)
252 #define   I915_USER_INTERRUPT				(1<<1)
253 #define   I915_ASLE_INTERRUPT				(1<<0)
254 #define EIR		0x020b0
255 #define EMR		0x020b4
256 #define ESR		0x020b8
257 #define INSTPM	        0x020c0
258 #define ACTHD	        0x020c8
259 #define FW_BLC		0x020d8
260 #define FW_BLC_SELF	0x020e0 /* 915+ only */
261 #define MI_ARB_STATE	0x020e4 /* 915+ only */
262 #define CACHE_MODE_0	0x02120 /* 915+ only */
263 #define   CM0_MASK_SHIFT          16
264 #define   CM0_IZ_OPT_DISABLE      (1<<6)
265 #define   CM0_ZR_OPT_DISABLE      (1<<5)
266 #define   CM0_DEPTH_EVICT_DISABLE (1<<4)
267 #define   CM0_COLOR_EVICT_DISABLE (1<<3)
268 #define   CM0_DEPTH_WRITE_DISABLE (1<<1)
269 #define   CM0_RC_OP_FLUSH_DISABLE (1<<0)
270 #define GFX_FLSH_CNTL	0x02170 /* 915+ only */
271 
272 
273 /*
274  * Framebuffer compression (915+ only)
275  */
276 
277 #define FBC_CFB_BASE		0x03200 /* 4k page aligned */
278 #define FBC_LL_BASE		0x03204 /* 4k page aligned */
279 #define FBC_CONTROL		0x03208
280 #define   FBC_CTL_EN		(1<<31)
281 #define   FBC_CTL_PERIODIC	(1<<30)
282 #define   FBC_CTL_INTERVAL_SHIFT (16)
283 #define   FBC_CTL_UNCOMPRESSIBLE (1<<14)
284 #define   FBC_CTL_STRIDE_SHIFT	(5)
285 #define   FBC_CTL_FENCENO	(1<<0)
286 #define FBC_COMMAND		0x0320c
287 #define   FBC_CMD_COMPRESS	(1<<0)
288 #define FBC_STATUS		0x03210
289 #define   FBC_STAT_COMPRESSING	(1<<31)
290 #define   FBC_STAT_COMPRESSED	(1<<30)
291 #define   FBC_STAT_MODIFIED	(1<<29)
292 #define   FBC_STAT_CURRENT_LINE	(1<<0)
293 #define FBC_CONTROL2		0x03214
294 #define   FBC_CTL_FENCE_DBL	(0<<4)
295 #define   FBC_CTL_IDLE_IMM	(0<<2)
296 #define   FBC_CTL_IDLE_FULL	(1<<2)
297 #define   FBC_CTL_IDLE_LINE	(2<<2)
298 #define   FBC_CTL_IDLE_DEBUG	(3<<2)
299 #define   FBC_CTL_CPU_FENCE	(1<<1)
300 #define   FBC_CTL_PLANEA	(0<<0)
301 #define   FBC_CTL_PLANEB	(1<<0)
302 #define FBC_FENCE_OFF		0x0321b
303 
304 #define FBC_LL_SIZE		(1536)
305 
306 /*
307  * GPIO regs
308  */
309 #define GPIOA			0x5010
310 #define GPIOB			0x5014
311 #define GPIOC			0x5018
312 #define GPIOD			0x501c
313 #define GPIOE			0x5020
314 #define GPIOF			0x5024
315 #define GPIOG			0x5028
316 #define GPIOH			0x502c
317 # define GPIO_CLOCK_DIR_MASK		(1 << 0)
318 # define GPIO_CLOCK_DIR_IN		(0 << 1)
319 # define GPIO_CLOCK_DIR_OUT		(1 << 1)
320 # define GPIO_CLOCK_VAL_MASK		(1 << 2)
321 # define GPIO_CLOCK_VAL_OUT		(1 << 3)
322 # define GPIO_CLOCK_VAL_IN		(1 << 4)
323 # define GPIO_CLOCK_PULLUP_DISABLE	(1 << 5)
324 # define GPIO_DATA_DIR_MASK		(1 << 8)
325 # define GPIO_DATA_DIR_IN		(0 << 9)
326 # define GPIO_DATA_DIR_OUT		(1 << 9)
327 # define GPIO_DATA_VAL_MASK		(1 << 10)
328 # define GPIO_DATA_VAL_OUT		(1 << 11)
329 # define GPIO_DATA_VAL_IN		(1 << 12)
330 # define GPIO_DATA_PULLUP_DISABLE	(1 << 13)
331 
332 /*
333  * Clock control & power management
334  */
335 
336 #define VGA0	0x6000
337 #define VGA1	0x6004
338 #define VGA_PD	0x6010
339 #define   VGA0_PD_P2_DIV_4	(1 << 7)
340 #define   VGA0_PD_P1_DIV_2	(1 << 5)
341 #define   VGA0_PD_P1_SHIFT	0
342 #define   VGA0_PD_P1_MASK	(0x1f << 0)
343 #define   VGA1_PD_P2_DIV_4	(1 << 15)
344 #define   VGA1_PD_P1_DIV_2	(1 << 13)
345 #define   VGA1_PD_P1_SHIFT	8
346 #define   VGA1_PD_P1_MASK	(0x1f << 8)
347 #define DPLL_A	0x06014
348 #define DPLL_B	0x06018
349 #define   DPLL_VCO_ENABLE		(1 << 31)
350 #define   DPLL_DVO_HIGH_SPEED		(1 << 30)
351 #define   DPLL_SYNCLOCK_ENABLE		(1 << 29)
352 #define   DPLL_VGA_MODE_DIS		(1 << 28)
353 #define   DPLLB_MODE_DAC_SERIAL		(1 << 26) /* i915 */
354 #define   DPLLB_MODE_LVDS		(2 << 26) /* i915 */
355 #define   DPLL_MODE_MASK		(3 << 26)
356 #define   DPLL_DAC_SERIAL_P2_CLOCK_DIV_10 (0 << 24) /* i915 */
357 #define   DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 (1 << 24) /* i915 */
358 #define   DPLLB_LVDS_P2_CLOCK_DIV_14	(0 << 24) /* i915 */
359 #define   DPLLB_LVDS_P2_CLOCK_DIV_7	(1 << 24) /* i915 */
360 #define   DPLL_P2_CLOCK_DIV_MASK	0x03000000 /* i915 */
361 #define   DPLL_FPA01_P1_POST_DIV_MASK	0x00ff0000 /* i915 */
362 
363 #define I915_FIFO_UNDERRUN_STATUS		(1UL<<31)
364 #define I915_CRC_ERROR_ENABLE			(1UL<<29)
365 #define I915_CRC_DONE_ENABLE			(1UL<<28)
366 #define I915_GMBUS_EVENT_ENABLE			(1UL<<27)
367 #define I915_VSYNC_INTERRUPT_ENABLE		(1UL<<25)
368 #define I915_DISPLAY_LINE_COMPARE_ENABLE	(1UL<<24)
369 #define I915_DPST_EVENT_ENABLE			(1UL<<23)
370 #define I915_LEGACY_BLC_EVENT_ENABLE		(1UL<<22)
371 #define I915_ODD_FIELD_INTERRUPT_ENABLE		(1UL<<21)
372 #define I915_EVEN_FIELD_INTERRUPT_ENABLE	(1UL<<20)
373 #define I915_START_VBLANK_INTERRUPT_ENABLE	(1UL<<18)	/* 965 or later */
374 #define I915_VBLANK_INTERRUPT_ENABLE		(1UL<<17)
375 #define I915_OVERLAY_UPDATED_ENABLE		(1UL<<16)
376 #define I915_CRC_ERROR_INTERRUPT_STATUS		(1UL<<13)
377 #define I915_CRC_DONE_INTERRUPT_STATUS		(1UL<<12)
378 #define I915_GMBUS_INTERRUPT_STATUS		(1UL<<11)
379 #define I915_VSYNC_INTERRUPT_STATUS		(1UL<<9)
380 #define I915_DISPLAY_LINE_COMPARE_STATUS	(1UL<<8)
381 #define I915_DPST_EVENT_STATUS			(1UL<<7)
382 #define I915_LEGACY_BLC_EVENT_STATUS		(1UL<<6)
383 #define I915_ODD_FIELD_INTERRUPT_STATUS		(1UL<<5)
384 #define I915_EVEN_FIELD_INTERRUPT_STATUS	(1UL<<4)
385 #define I915_START_VBLANK_INTERRUPT_STATUS	(1UL<<2)	/* 965 or later */
386 #define I915_VBLANK_INTERRUPT_STATUS		(1UL<<1)
387 #define I915_OVERLAY_UPDATED_STATUS		(1UL<<0)
388 
389 #define SRX_INDEX		0x3c4
390 #define SRX_DATA		0x3c5
391 #define SR01			1
392 #define SR01_SCREEN_OFF		(1<<5)
393 
394 #define PPCR			0x61204
395 #define PPCR_ON			(1<<0)
396 
397 #define DVOB			0x61140
398 #define DVOB_ON			(1<<31)
399 #define DVOC			0x61160
400 #define DVOC_ON			(1<<31)
401 #define LVDS			0x61180
402 #define LVDS_ON			(1<<31)
403 
404 #define ADPA			0x61100
405 #define ADPA_DPMS_MASK		(~(3<<10))
406 #define ADPA_DPMS_ON		(0<<10)
407 #define ADPA_DPMS_SUSPEND	(1<<10)
408 #define ADPA_DPMS_STANDBY	(2<<10)
409 #define ADPA_DPMS_OFF		(3<<10)
410 
411 #define RING_TAIL		0x00
412 #define TAIL_ADDR		0x001FFFF8
413 #define RING_HEAD		0x04
414 #define HEAD_WRAP_COUNT		0xFFE00000
415 #define HEAD_WRAP_ONE		0x00200000
416 #define HEAD_ADDR		0x001FFFFC
417 #define RING_START		0x08
418 #define START_ADDR		0xFFFFF000
419 #define RING_LEN		0x0C
420 #define RING_NR_PAGES		0x001FF000
421 #define RING_REPORT_MASK	0x00000006
422 #define RING_REPORT_64K		0x00000002
423 #define RING_REPORT_128K	0x00000004
424 #define RING_NO_REPORT		0x00000000
425 #define RING_VALID_MASK		0x00000001
426 #define RING_VALID		0x00000001
427 #define RING_INVALID		0x00000000
428 
429 /* Scratch pad debug 0 reg:
430  */
431 #define   DPLL_FPA01_P1_POST_DIV_MASK_I830	0x001f0000
432 /*
433  * The i830 generation, in LVDS mode, defines P1 as the bit number set within
434  * this field (only one bit may be set).
435  */
436 #define   DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS	0x003f0000
437 #define   DPLL_FPA01_P1_POST_DIV_SHIFT	16
438 /* i830, required in DVO non-gang */
439 #define   PLL_P2_DIVIDE_BY_4		(1 << 23)
440 #define   PLL_P1_DIVIDE_BY_TWO		(1 << 21) /* i830 */
441 #define   PLL_REF_INPUT_DREFCLK		(0 << 13)
442 #define   PLL_REF_INPUT_TVCLKINA	(1 << 13) /* i830 */
443 #define   PLL_REF_INPUT_TVCLKINBC	(2 << 13) /* SDVO TVCLKIN */
444 #define   PLLB_REF_INPUT_SPREADSPECTRUMIN (3 << 13)
445 #define   PLL_REF_INPUT_MASK		(3 << 13)
446 #define   PLL_LOAD_PULSE_PHASE_SHIFT		9
447 /*
448  * Parallel to Serial Load Pulse phase selection.
449  * Selects the phase for the 10X DPLL clock for the PCIe
450  * digital display port. The range is 4 to 13; 10 or more
451  * is just a flip delay. The default is 6
452  */
453 #define   PLL_LOAD_PULSE_PHASE_MASK		(0xf << PLL_LOAD_PULSE_PHASE_SHIFT)
454 #define   DISPLAY_RATE_SELECT_FPA1		(1 << 8)
455 /*
456  * SDVO multiplier for 945G/GM. Not used on 965.
457  */
458 #define   SDVO_MULTIPLIER_MASK			0x000000ff
459 #define   SDVO_MULTIPLIER_SHIFT_HIRES		4
460 #define   SDVO_MULTIPLIER_SHIFT_VGA		0
461 #define DPLL_A_MD 0x0601c /* 965+ only */
462 /*
463  * UDI pixel divider, controlling how many pixels are stuffed into a packet.
464  *
465  * Value is pixels minus 1.  Must be set to 1 pixel for SDVO.
466  */
467 #define   DPLL_MD_UDI_DIVIDER_MASK		0x3f000000
468 #define   DPLL_MD_UDI_DIVIDER_SHIFT		24
469 /* UDI pixel divider for VGA, same as DPLL_MD_UDI_DIVIDER_MASK. */
470 #define   DPLL_MD_VGA_UDI_DIVIDER_MASK		0x003f0000
471 #define   DPLL_MD_VGA_UDI_DIVIDER_SHIFT		16
472 /*
473  * SDVO/UDI pixel multiplier.
474  *
475  * SDVO requires that the bus clock rate be between 1 and 2 Ghz, and the bus
476  * clock rate is 10 times the DPLL clock.  At low resolution/refresh rate
477  * modes, the bus rate would be below the limits, so SDVO allows for stuffing
478  * dummy bytes in the datastream at an increased clock rate, with both sides of
479  * the link knowing how many bytes are fill.
480  *
481  * So, for a mode with a dotclock of 65Mhz, we would want to double the clock
482  * rate to 130Mhz to get a bus rate of 1.30Ghz.  The DPLL clock rate would be
483  * set to 130Mhz, and the SDVO multiplier set to 2x in this register and
484  * through an SDVO command.
485  *
486  * This register field has values of multiplication factor minus 1, with
487  * a maximum multiplier of 5 for SDVO.
488  */
489 #define   DPLL_MD_UDI_MULTIPLIER_MASK		0x00003f00
490 #define   DPLL_MD_UDI_MULTIPLIER_SHIFT		8
491 /*
492  * SDVO/UDI pixel multiplier for VGA, same as DPLL_MD_UDI_MULTIPLIER_MASK.
493  * This best be set to the default value (3) or the CRT won't work. No,
494  * I don't entirely understand what this does...
495  */
496 #define   DPLL_MD_VGA_UDI_MULTIPLIER_MASK	0x0000003f
497 #define   DPLL_MD_VGA_UDI_MULTIPLIER_SHIFT	0
498 #define DPLL_B_MD 0x06020 /* 965+ only */
499 #define FPA0	0x06040
500 #define FPA1	0x06044
501 #define FPB0	0x06048
502 #define FPB1	0x0604c
503 #define   FP_N_DIV_MASK		0x003f0000
504 #define   FP_N_DIV_SHIFT		16
505 #define   FP_M1_DIV_MASK	0x00003f00
506 #define   FP_M1_DIV_SHIFT		 8
507 #define   FP_M2_DIV_MASK	0x0000003f
508 #define   FP_M2_DIV_SHIFT		 0
509 #define DPLL_TEST	0x606c
510 #define   DPLLB_TEST_SDVO_DIV_1		(0 << 22)
511 #define   DPLLB_TEST_SDVO_DIV_2		(1 << 22)
512 #define   DPLLB_TEST_SDVO_DIV_4		(2 << 22)
513 #define   DPLLB_TEST_SDVO_DIV_MASK	(3 << 22)
514 #define   DPLLB_TEST_N_BYPASS		(1 << 19)
515 #define   DPLLB_TEST_M_BYPASS		(1 << 18)
516 #define   DPLLB_INPUT_BUFFER_ENABLE	(1 << 16)
517 #define   DPLLA_TEST_N_BYPASS		(1 << 3)
518 #define   DPLLA_TEST_M_BYPASS		(1 << 2)
519 #define   DPLLA_INPUT_BUFFER_ENABLE	(1 << 0)
520 #define D_STATE		0x6104
521 #define CG_2D_DIS	0x6200
522 #define CG_3D_DIS	0x6204
523 
524 /*
525  * Palette regs
526  */
527 
528 #define PALETTE_A		0x0a000
529 #define PALETTE_B		0x0a800
530 
531 /* MCH MMIO space */
532 
533 /*
534  * MCHBAR mirror.
535  *
536  * This mirrors the MCHBAR MMIO space whose location is determined by
537  * device 0 function 0's pci config register 0x44 or 0x48 and matches it in
538  * every way.  It is not accessible from the CP register read instructions.
539  *
540  */
541 #define MCHBAR_MIRROR_BASE	0x10000
542 
543 /** 915-945 and GM965 MCH register controlling DRAM channel access */
544 #define DCC			0x10200
545 #define DCC_ADDRESSING_MODE_SINGLE_CHANNEL		(0 << 0)
546 #define DCC_ADDRESSING_MODE_DUAL_CHANNEL_ASYMMETRIC	(1 << 0)
547 #define DCC_ADDRESSING_MODE_DUAL_CHANNEL_INTERLEAVED	(2 << 0)
548 #define DCC_ADDRESSING_MODE_MASK			(3 << 0)
549 #define DCC_CHANNEL_XOR_DISABLE				(1 << 10)
550 #define DCC_CHANNEL_XOR_BIT_17				(1 << 9)
551 
552 /** 965 MCH register controlling DRAM channel configuration */
553 #define C0DRB3			0x10206
554 #define C1DRB3			0x10606
555 
556 /** GM965 GM45 render standby register */
557 #define MCHBAR_RENDER_STANDBY	0x111B8
558 
559 #define PEG_BAND_GAP_DATA	0x14d68
560 
561 /*
562  * Overlay regs
563  */
564 
565 #define OVADD			0x30000
566 #define DOVSTA			0x30008
567 #define OC_BUF			(0x3<<20)
568 #define OGAMC5			0x30010
569 #define OGAMC4			0x30014
570 #define OGAMC3			0x30018
571 #define OGAMC2			0x3001c
572 #define OGAMC1			0x30020
573 #define OGAMC0			0x30024
574 
575 /*
576  * Display engine regs
577  */
578 
579 /* Pipe A timing regs */
580 #define HTOTAL_A	0x60000
581 #define HBLANK_A	0x60004
582 #define HSYNC_A		0x60008
583 #define VTOTAL_A	0x6000c
584 #define VBLANK_A	0x60010
585 #define VSYNC_A		0x60014
586 #define PIPEASRC	0x6001c
587 #define BCLRPAT_A	0x60020
588 
589 /* Pipe B timing regs */
590 #define HTOTAL_B	0x61000
591 #define HBLANK_B	0x61004
592 #define HSYNC_B		0x61008
593 #define VTOTAL_B	0x6100c
594 #define VBLANK_B	0x61010
595 #define VSYNC_B		0x61014
596 #define PIPEBSRC	0x6101c
597 #define BCLRPAT_B	0x61020
598 
599 /* VGA port control */
600 #define ADPA			0x61100
601 #define   ADPA_DAC_ENABLE	(1<<31)
602 #define   ADPA_DAC_DISABLE	0
603 #define   ADPA_PIPE_SELECT_MASK	(1<<30)
604 #define   ADPA_PIPE_A_SELECT	0
605 #define   ADPA_PIPE_B_SELECT	(1<<30)
606 #define   ADPA_USE_VGA_HVPOLARITY (1<<15)
607 #define   ADPA_SETS_HVPOLARITY	0
608 #define   ADPA_VSYNC_CNTL_DISABLE (1<<11)
609 #define   ADPA_VSYNC_CNTL_ENABLE 0
610 #define   ADPA_HSYNC_CNTL_DISABLE (1<<10)
611 #define   ADPA_HSYNC_CNTL_ENABLE 0
612 #define   ADPA_VSYNC_ACTIVE_HIGH (1<<4)
613 #define   ADPA_VSYNC_ACTIVE_LOW	0
614 #define   ADPA_HSYNC_ACTIVE_HIGH (1<<3)
615 #define   ADPA_HSYNC_ACTIVE_LOW	0
616 #define   ADPA_DPMS_MASK	(~(3<<10))
617 #define   ADPA_DPMS_ON		(0<<10)
618 #define   ADPA_DPMS_SUSPEND	(1<<10)
619 #define   ADPA_DPMS_STANDBY	(2<<10)
620 #define   ADPA_DPMS_OFF		(3<<10)
621 
622 /* Hotplug control (945+ only) */
623 #define PORT_HOTPLUG_EN		0x61110
624 #define   HDMIB_HOTPLUG_INT_EN			(1 << 29)
625 #define   HDMIC_HOTPLUG_INT_EN			(1 << 28)
626 #define   HDMID_HOTPLUG_INT_EN			(1 << 27)
627 #define   SDVOB_HOTPLUG_INT_EN			(1 << 26)
628 #define   SDVOC_HOTPLUG_INT_EN			(1 << 25)
629 #define   TV_HOTPLUG_INT_EN			(1 << 18)
630 #define   CRT_HOTPLUG_INT_EN			(1 << 9)
631 #define   CRT_HOTPLUG_FORCE_DETECT		(1 << 3)
632 
633 #define PORT_HOTPLUG_STAT	0x61114
634 #define   HDMIB_HOTPLUG_INT_STATUS		(1 << 29)
635 #define   HDMIC_HOTPLUG_INT_STATUS		(1 << 28)
636 #define   HDMID_HOTPLUG_INT_STATUS		(1 << 27)
637 #define   CRT_HOTPLUG_INT_STATUS		(1 << 11)
638 #define   TV_HOTPLUG_INT_STATUS			(1 << 10)
639 #define   CRT_HOTPLUG_MONITOR_MASK		(3 << 8)
640 #define   CRT_HOTPLUG_MONITOR_COLOR		(3 << 8)
641 #define   CRT_HOTPLUG_MONITOR_MONO		(2 << 8)
642 #define   CRT_HOTPLUG_MONITOR_NONE		(0 << 8)
643 #define   SDVOC_HOTPLUG_INT_STATUS		(1 << 7)
644 #define   SDVOB_HOTPLUG_INT_STATUS		(1 << 6)
645 
646 /* SDVO port control */
647 #define SDVOB			0x61140
648 #define SDVOC			0x61160
649 #define   SDVO_ENABLE		(1 << 31)
650 #define   SDVO_PIPE_B_SELECT	(1 << 30)
651 #define   SDVO_STALL_SELECT	(1 << 29)
652 #define   SDVO_INTERRUPT_ENABLE	(1 << 26)
653 /**
654  * 915G/GM SDVO pixel multiplier.
655  *
656  * Programmed value is multiplier - 1, up to 5x.
657  *
658  * \sa DPLL_MD_UDI_MULTIPLIER_MASK
659  */
660 #define   SDVO_PORT_MULTIPLY_MASK	(7 << 23)
661 #define   SDVO_PORT_MULTIPLY_SHIFT		23
662 #define   SDVO_PHASE_SELECT_MASK	(15 << 19)
663 #define   SDVO_PHASE_SELECT_DEFAULT	(6 << 19)
664 #define   SDVO_CLOCK_OUTPUT_INVERT	(1 << 18)
665 #define   SDVOC_GANG_MODE		(1 << 16)
666 #define   SDVO_ENCODING_SDVO		(0x0 << 10)
667 #define   SDVO_ENCODING_HDMI		(0x2 << 10)
668 /** Requird for HDMI operation */
669 #define   SDVO_NULL_PACKETS_DURING_VSYNC (1 << 9)
670 #define   SDVO_BORDER_ENABLE		(1 << 7)
671 #define   SDVO_AUDIO_ENABLE		(1 << 6)
672 /** New with 965, default is to be set */
673 #define   SDVO_VSYNC_ACTIVE_HIGH	(1 << 4)
674 /** New with 965, default is to be set */
675 #define   SDVO_HSYNC_ACTIVE_HIGH	(1 << 3)
676 #define   SDVOB_PCIE_CONCURRENCY	(1 << 3)
677 #define   SDVO_DETECTED			(1 << 2)
678 /* Bits to be preserved when writing */
679 #define   SDVOB_PRESERVE_MASK ((1 << 17) | (1 << 16) | (1 << 14) | (1 << 26))
680 #define   SDVOC_PRESERVE_MASK ((1 << 17) | (1 << 26))
681 
682 /* DVO port control */
683 #define DVOA			0x61120
684 #define DVOB			0x61140
685 #define DVOC			0x61160
686 #define   DVO_ENABLE			(1 << 31)
687 #define   DVO_PIPE_B_SELECT		(1 << 30)
688 #define   DVO_PIPE_STALL_UNUSED		(0 << 28)
689 #define   DVO_PIPE_STALL		(1 << 28)
690 #define   DVO_PIPE_STALL_TV		(2 << 28)
691 #define   DVO_PIPE_STALL_MASK		(3 << 28)
692 #define   DVO_USE_VGA_SYNC		(1 << 15)
693 #define   DVO_DATA_ORDER_I740		(0 << 14)
694 #define   DVO_DATA_ORDER_FP		(1 << 14)
695 #define   DVO_VSYNC_DISABLE		(1 << 11)
696 #define   DVO_HSYNC_DISABLE		(1 << 10)
697 #define   DVO_VSYNC_TRISTATE		(1 << 9)
698 #define   DVO_HSYNC_TRISTATE		(1 << 8)
699 #define   DVO_BORDER_ENABLE		(1 << 7)
700 #define   DVO_DATA_ORDER_GBRG		(1 << 6)
701 #define   DVO_DATA_ORDER_RGGB		(0 << 6)
702 #define   DVO_DATA_ORDER_GBRG_ERRATA	(0 << 6)
703 #define   DVO_DATA_ORDER_RGGB_ERRATA	(1 << 6)
704 #define   DVO_VSYNC_ACTIVE_HIGH		(1 << 4)
705 #define   DVO_HSYNC_ACTIVE_HIGH		(1 << 3)
706 #define   DVO_BLANK_ACTIVE_HIGH		(1 << 2)
707 #define   DVO_OUTPUT_CSTATE_PIXELS	(1 << 1)	/* SDG only */
708 #define   DVO_OUTPUT_SOURCE_SIZE_PIXELS	(1 << 0)	/* SDG only */
709 #define   DVO_PRESERVE_MASK		(0x7<<24)
710 #define DVOA_SRCDIM		0x61124
711 #define DVOB_SRCDIM		0x61144
712 #define DVOC_SRCDIM		0x61164
713 #define   DVO_SRCDIM_HORIZONTAL_SHIFT	12
714 #define   DVO_SRCDIM_VERTICAL_SHIFT	0
715 
716 /* LVDS port control */
717 #define LVDS			0x61180
718 /*
719  * Enables the LVDS port.  This bit must be set before DPLLs are enabled, as
720  * the DPLL semantics change when the LVDS is assigned to that pipe.
721  */
722 #define   LVDS_PORT_EN			(1 << 31)
723 /* Selects pipe B for LVDS data.  Must be set on pre-965. */
724 #define   LVDS_PIPEB_SELECT		(1 << 30)
725 /*
726  * Enables the A0-A2 data pairs and CLKA, containing 18 bits of color data per
727  * pixel.
728  */
729 #define   LVDS_A0A2_CLKA_POWER_MASK	(3 << 8)
730 #define   LVDS_A0A2_CLKA_POWER_DOWN	(0 << 8)
731 #define   LVDS_A0A2_CLKA_POWER_UP	(3 << 8)
732 /*
733  * Controls the A3 data pair, which contains the additional LSBs for 24 bit
734  * mode.  Only enabled if LVDS_A0A2_CLKA_POWER_UP also indicates it should be
735  * on.
736  */
737 #define   LVDS_A3_POWER_MASK		(3 << 6)
738 #define   LVDS_A3_POWER_DOWN		(0 << 6)
739 #define   LVDS_A3_POWER_UP		(3 << 6)
740 /*
741  * Controls the CLKB pair.  This should only be set when LVDS_B0B3_POWER_UP
742  * is set.
743  */
744 #define   LVDS_CLKB_POWER_MASK		(3 << 4)
745 #define   LVDS_CLKB_POWER_DOWN		(0 << 4)
746 #define   LVDS_CLKB_POWER_UP		(3 << 4)
747 /*
748  * Controls the B0-B3 data pairs.  This must be set to match the DPLL p2
749  * setting for whether we are in dual-channel mode.  The B3 pair will
750  * additionally only be powered up when LVDS_A3_POWER_UP is set.
751  */
752 #define   LVDS_B0B3_POWER_MASK		(3 << 2)
753 #define   LVDS_B0B3_POWER_DOWN		(0 << 2)
754 #define   LVDS_B0B3_POWER_UP		(3 << 2)
755 
756 /* Panel power sequencing */
757 #define PP_STATUS	0x61200
758 #define   PP_ON		(1 << 31)
759 /*
760  * Indicates that all dependencies of the panel are on:
761  *
762  * - PLL enabled
763  * - pipe enabled
764  * - LVDS/DVOB/DVOC on
765  */
766 #define   PP_READY		(1 << 30)
767 #define   PP_SEQUENCE_NONE	(0 << 28)
768 #define   PP_SEQUENCE_ON	(1 << 28)
769 #define   PP_SEQUENCE_OFF	(2 << 28)
770 #define   PP_SEQUENCE_MASK	0x30000000
771 #define PP_CONTROL	0x61204
772 #define   POWER_TARGET_ON	(1 << 0)
773 #define PP_ON_DELAYS	0x61208
774 #define PP_OFF_DELAYS	0x6120c
775 #define PP_DIVISOR	0x61210
776 
777 /* Panel fitting */
778 #define PFIT_CONTROL	0x61230
779 #define   PFIT_ENABLE		(1 << 31)
780 #define   PFIT_PIPE_MASK	(3 << 29)
781 #define   PFIT_PIPE_SHIFT	29
782 #define   VERT_INTERP_DISABLE	(0 << 10)
783 #define   VERT_INTERP_BILINEAR	(1 << 10)
784 #define   VERT_INTERP_MASK	(3 << 10)
785 #define   VERT_AUTO_SCALE	(1 << 9)
786 #define   HORIZ_INTERP_DISABLE	(0 << 6)
787 #define   HORIZ_INTERP_BILINEAR	(1 << 6)
788 #define   HORIZ_INTERP_MASK	(3 << 6)
789 #define   HORIZ_AUTO_SCALE	(1 << 5)
790 #define   PANEL_8TO6_DITHER_ENABLE (1 << 3)
791 #define PFIT_PGM_RATIOS	0x61234
792 #define   PFIT_VERT_SCALE_MASK			0xfff00000
793 #define   PFIT_HORIZ_SCALE_MASK			0x0000fff0
794 #define PFIT_AUTO_RATIOS 0x61238
795 
796 /* Backlight control */
797 #define BLC_PWM_CTL		0x61254
798 #define   BACKLIGHT_MODULATION_FREQ_SHIFT		(17)
799 #define BLC_PWM_CTL2		0x61250 /* 965+ only */
800 #define   BLM_COMBINATION_MODE (1 << 30)
801 /*
802  * This is the most significant 15 bits of the number of backlight cycles in a
803  * complete cycle of the modulated backlight control.
804  *
805  * The actual value is this field multiplied by two.
806  */
807 #define   BACKLIGHT_MODULATION_FREQ_MASK		(0x7fff << 17)
808 #define   BLM_LEGACY_MODE				(1 << 16)
809 /*
810  * This is the number of cycles out of the backlight modulation cycle for which
811  * the backlight is on.
812  *
813  * This field must be no greater than the number of cycles in the complete
814  * backlight modulation cycle.
815  */
816 #define   BACKLIGHT_DUTY_CYCLE_SHIFT		(0)
817 #define   BACKLIGHT_DUTY_CYCLE_MASK		(0xffff)
818 
819 /* TV port control */
820 #define TV_CTL			0x68000
821 /** Enables the TV encoder */
822 # define TV_ENC_ENABLE			(1 << 31)
823 /** Sources the TV encoder input from pipe B instead of A. */
824 # define TV_ENC_PIPEB_SELECT		(1 << 30)
825 /** Outputs composite video (DAC A only) */
826 # define TV_ENC_OUTPUT_COMPOSITE	(0 << 28)
827 /** Outputs SVideo video (DAC B/C) */
828 # define TV_ENC_OUTPUT_SVIDEO		(1 << 28)
829 /** Outputs Component video (DAC A/B/C) */
830 # define TV_ENC_OUTPUT_COMPONENT	(2 << 28)
831 /** Outputs Composite and SVideo (DAC A/B/C) */
832 # define TV_ENC_OUTPUT_SVIDEO_COMPOSITE	(3 << 28)
833 # define TV_TRILEVEL_SYNC		(1 << 21)
834 /** Enables slow sync generation (945GM only) */
835 # define TV_SLOW_SYNC			(1 << 20)
836 /** Selects 4x oversampling for 480i and 576p */
837 # define TV_OVERSAMPLE_4X		(0 << 18)
838 /** Selects 2x oversampling for 720p and 1080i */
839 # define TV_OVERSAMPLE_2X		(1 << 18)
840 /** Selects no oversampling for 1080p */
841 # define TV_OVERSAMPLE_NONE		(2 << 18)
842 /** Selects 8x oversampling */
843 # define TV_OVERSAMPLE_8X		(3 << 18)
844 /** Selects progressive mode rather than interlaced */
845 # define TV_PROGRESSIVE			(1 << 17)
846 /** Sets the colorburst to PAL mode.  Required for non-M PAL modes. */
847 # define TV_PAL_BURST			(1 << 16)
848 /** Field for setting delay of Y compared to C */
849 # define TV_YC_SKEW_MASK		(7 << 12)
850 /** Enables a fix for 480p/576p standard definition modes on the 915GM only */
851 # define TV_ENC_SDP_FIX			(1 << 11)
852 /**
853  * Enables a fix for the 915GM only.
854  *
855  * Not sure what it does.
856  */
857 # define TV_ENC_C0_FIX			(1 << 10)
858 /** Bits that must be preserved by software */
859 # define TV_CTL_SAVE			((3 << 8) | (3 << 6))
860 # define TV_FUSE_STATE_MASK		(3 << 4)
861 /** Read-only state that reports all features enabled */
862 # define TV_FUSE_STATE_ENABLED		(0 << 4)
863 /** Read-only state that reports that Macrovision is disabled in hardware*/
864 # define TV_FUSE_STATE_NO_MACROVISION	(1 << 4)
865 /** Read-only state that reports that TV-out is disabled in hardware. */
866 # define TV_FUSE_STATE_DISABLED		(2 << 4)
867 /** Normal operation */
868 # define TV_TEST_MODE_NORMAL		(0 << 0)
869 /** Encoder test pattern 1 - combo pattern */
870 # define TV_TEST_MODE_PATTERN_1		(1 << 0)
871 /** Encoder test pattern 2 - full screen vertical 75% color bars */
872 # define TV_TEST_MODE_PATTERN_2		(2 << 0)
873 /** Encoder test pattern 3 - full screen horizontal 75% color bars */
874 # define TV_TEST_MODE_PATTERN_3		(3 << 0)
875 /** Encoder test pattern 4 - random noise */
876 # define TV_TEST_MODE_PATTERN_4		(4 << 0)
877 /** Encoder test pattern 5 - linear color ramps */
878 # define TV_TEST_MODE_PATTERN_5		(5 << 0)
879 /**
880  * This test mode forces the DACs to 50% of full output.
881  *
882  * This is used for load detection in combination with TVDAC_SENSE_MASK
883  */
884 # define TV_TEST_MODE_MONITOR_DETECT	(7 << 0)
885 # define TV_TEST_MODE_MASK		(7 << 0)
886 
887 #define TV_DAC			0x68004
888 /**
889  * Reports that DAC state change logic has reported change (RO).
890  *
891  * This gets cleared when TV_DAC_STATE_EN is cleared
892 */
893 # define TVDAC_STATE_CHG		(1 << 31)
894 # define TVDAC_SENSE_MASK		(7 << 28)
895 /** Reports that DAC A voltage is above the detect threshold */
896 # define TVDAC_A_SENSE			(1 << 30)
897 /** Reports that DAC B voltage is above the detect threshold */
898 # define TVDAC_B_SENSE			(1 << 29)
899 /** Reports that DAC C voltage is above the detect threshold */
900 # define TVDAC_C_SENSE			(1 << 28)
901 /**
902  * Enables DAC state detection logic, for load-based TV detection.
903  *
904  * The PLL of the chosen pipe (in TV_CTL) must be running, and the encoder set
905  * to off, for load detection to work.
906  */
907 # define TVDAC_STATE_CHG_EN		(1 << 27)
908 /** Sets the DAC A sense value to high */
909 # define TVDAC_A_SENSE_CTL		(1 << 26)
910 /** Sets the DAC B sense value to high */
911 # define TVDAC_B_SENSE_CTL		(1 << 25)
912 /** Sets the DAC C sense value to high */
913 # define TVDAC_C_SENSE_CTL		(1 << 24)
914 /** Overrides the ENC_ENABLE and DAC voltage levels */
915 # define DAC_CTL_OVERRIDE		(1 << 7)
916 /** Sets the slew rate.  Must be preserved in software */
917 # define ENC_TVDAC_SLEW_FAST		(1 << 6)
918 # define DAC_A_1_3_V			(0 << 4)
919 # define DAC_A_1_1_V			(1 << 4)
920 # define DAC_A_0_7_V			(2 << 4)
921 # define DAC_A_OFF			(3 << 4)
922 # define DAC_B_1_3_V			(0 << 2)
923 # define DAC_B_1_1_V			(1 << 2)
924 # define DAC_B_0_7_V			(2 << 2)
925 # define DAC_B_OFF			(3 << 2)
926 # define DAC_C_1_3_V			(0 << 0)
927 # define DAC_C_1_1_V			(1 << 0)
928 # define DAC_C_0_7_V			(2 << 0)
929 # define DAC_C_OFF			(3 << 0)
930 
931 /**
932  * CSC coefficients are stored in a floating point format with 9 bits of
933  * mantissa and 2 or 3 bits of exponent.  The exponent is represented as 2**-n,
934  * where 2-bit exponents are unsigned n, and 3-bit exponents are signed n with
935  * -1 (0x3) being the only legal negative value.
936  */
937 #define TV_CSC_Y		0x68010
938 # define TV_RY_MASK			0x07ff0000
939 # define TV_RY_SHIFT			16
940 # define TV_GY_MASK			0x00000fff
941 # define TV_GY_SHIFT			0
942 
943 #define TV_CSC_Y2		0x68014
944 # define TV_BY_MASK			0x07ff0000
945 # define TV_BY_SHIFT			16
946 /**
947  * Y attenuation for component video.
948  *
949  * Stored in 1.9 fixed point.
950  */
951 # define TV_AY_MASK			0x000003ff
952 # define TV_AY_SHIFT			0
953 
954 #define TV_CSC_U		0x68018
955 # define TV_RU_MASK			0x07ff0000
956 # define TV_RU_SHIFT			16
957 # define TV_GU_MASK			0x000007ff
958 # define TV_GU_SHIFT			0
959 
960 #define TV_CSC_U2		0x6801c
961 # define TV_BU_MASK			0x07ff0000
962 # define TV_BU_SHIFT			16
963 /**
964  * U attenuation for component video.
965  *
966  * Stored in 1.9 fixed point.
967  */
968 # define TV_AU_MASK			0x000003ff
969 # define TV_AU_SHIFT			0
970 
971 #define TV_CSC_V		0x68020
972 # define TV_RV_MASK			0x0fff0000
973 # define TV_RV_SHIFT			16
974 # define TV_GV_MASK			0x000007ff
975 # define TV_GV_SHIFT			0
976 
977 #define TV_CSC_V2		0x68024
978 # define TV_BV_MASK			0x07ff0000
979 # define TV_BV_SHIFT			16
980 /**
981  * V attenuation for component video.
982  *
983  * Stored in 1.9 fixed point.
984  */
985 # define TV_AV_MASK			0x000007ff
986 # define TV_AV_SHIFT			0
987 
988 #define TV_CLR_KNOBS		0x68028
989 /** 2s-complement brightness adjustment */
990 # define TV_BRIGHTNESS_MASK		0xff000000
991 # define TV_BRIGHTNESS_SHIFT		24
992 /** Contrast adjustment, as a 2.6 unsigned floating point number */
993 # define TV_CONTRAST_MASK		0x00ff0000
994 # define TV_CONTRAST_SHIFT		16
995 /** Saturation adjustment, as a 2.6 unsigned floating point number */
996 # define TV_SATURATION_MASK		0x0000ff00
997 # define TV_SATURATION_SHIFT		8
998 /** Hue adjustment, as an integer phase angle in degrees */
999 # define TV_HUE_MASK			0x000000ff
1000 # define TV_HUE_SHIFT			0
1001 
1002 #define TV_CLR_LEVEL		0x6802c
1003 /** Controls the DAC level for black */
1004 # define TV_BLACK_LEVEL_MASK		0x01ff0000
1005 # define TV_BLACK_LEVEL_SHIFT		16
1006 /** Controls the DAC level for blanking */
1007 # define TV_BLANK_LEVEL_MASK		0x000001ff
1008 # define TV_BLANK_LEVEL_SHIFT		0
1009 
1010 #define TV_H_CTL_1		0x68030
1011 /** Number of pixels in the hsync. */
1012 # define TV_HSYNC_END_MASK		0x1fff0000
1013 # define TV_HSYNC_END_SHIFT		16
1014 /** Total number of pixels minus one in the line (display and blanking). */
1015 # define TV_HTOTAL_MASK			0x00001fff
1016 # define TV_HTOTAL_SHIFT		0
1017 
1018 #define TV_H_CTL_2		0x68034
1019 /** Enables the colorburst (needed for non-component color) */
1020 # define TV_BURST_ENA			(1 << 31)
1021 /** Offset of the colorburst from the start of hsync, in pixels minus one. */
1022 # define TV_HBURST_START_SHIFT		16
1023 # define TV_HBURST_START_MASK		0x1fff0000
1024 /** Length of the colorburst */
1025 # define TV_HBURST_LEN_SHIFT		0
1026 # define TV_HBURST_LEN_MASK		0x0001fff
1027 
1028 #define TV_H_CTL_3		0x68038
1029 /** End of hblank, measured in pixels minus one from start of hsync */
1030 # define TV_HBLANK_END_SHIFT		16
1031 # define TV_HBLANK_END_MASK		0x1fff0000
1032 /** Start of hblank, measured in pixels minus one from start of hsync */
1033 # define TV_HBLANK_START_SHIFT		0
1034 # define TV_HBLANK_START_MASK		0x0001fff
1035 
1036 #define TV_V_CTL_1		0x6803c
1037 /** XXX */
1038 # define TV_NBR_END_SHIFT		16
1039 # define TV_NBR_END_MASK		0x07ff0000
1040 /** XXX */
1041 # define TV_VI_END_F1_SHIFT		8
1042 # define TV_VI_END_F1_MASK		0x00003f00
1043 /** XXX */
1044 # define TV_VI_END_F2_SHIFT		0
1045 # define TV_VI_END_F2_MASK		0x0000003f
1046 
1047 #define TV_V_CTL_2		0x68040
1048 /** Length of vsync, in half lines */
1049 # define TV_VSYNC_LEN_MASK		0x07ff0000
1050 # define TV_VSYNC_LEN_SHIFT		16
1051 /** Offset of the start of vsync in field 1, measured in one less than the
1052  * number of half lines.
1053  */
1054 # define TV_VSYNC_START_F1_MASK		0x00007f00
1055 # define TV_VSYNC_START_F1_SHIFT	8
1056 /**
1057  * Offset of the start of vsync in field 2, measured in one less than the
1058  * number of half lines.
1059  */
1060 # define TV_VSYNC_START_F2_MASK		0x0000007f
1061 # define TV_VSYNC_START_F2_SHIFT	0
1062 
1063 #define TV_V_CTL_3		0x68044
1064 /** Enables generation of the equalization signal */
1065 # define TV_EQUAL_ENA			(1 << 31)
1066 /** Length of vsync, in half lines */
1067 # define TV_VEQ_LEN_MASK		0x007f0000
1068 # define TV_VEQ_LEN_SHIFT		16
1069 /** Offset of the start of equalization in field 1, measured in one less than
1070  * the number of half lines.
1071  */
1072 # define TV_VEQ_START_F1_MASK		0x0007f00
1073 # define TV_VEQ_START_F1_SHIFT		8
1074 /**
1075  * Offset of the start of equalization in field 2, measured in one less than
1076  * the number of half lines.
1077  */
1078 # define TV_VEQ_START_F2_MASK		0x000007f
1079 # define TV_VEQ_START_F2_SHIFT		0
1080 
1081 #define TV_V_CTL_4		0x68048
1082 /**
1083  * Offset to start of vertical colorburst, measured in one less than the
1084  * number of lines from vertical start.
1085  */
1086 # define TV_VBURST_START_F1_MASK	0x003f0000
1087 # define TV_VBURST_START_F1_SHIFT	16
1088 /**
1089  * Offset to the end of vertical colorburst, measured in one less than the
1090  * number of lines from the start of NBR.
1091  */
1092 # define TV_VBURST_END_F1_MASK		0x000000ff
1093 # define TV_VBURST_END_F1_SHIFT		0
1094 
1095 #define TV_V_CTL_5		0x6804c
1096 /**
1097  * Offset to start of vertical colorburst, measured in one less than the
1098  * number of lines from vertical start.
1099  */
1100 # define TV_VBURST_START_F2_MASK	0x003f0000
1101 # define TV_VBURST_START_F2_SHIFT	16
1102 /**
1103  * Offset to the end of vertical colorburst, measured in one less than the
1104  * number of lines from the start of NBR.
1105  */
1106 # define TV_VBURST_END_F2_MASK		0x000000ff
1107 # define TV_VBURST_END_F2_SHIFT		0
1108 
1109 #define TV_V_CTL_6		0x68050
1110 /**
1111  * Offset to start of vertical colorburst, measured in one less than the
1112  * number of lines from vertical start.
1113  */
1114 # define TV_VBURST_START_F3_MASK	0x003f0000
1115 # define TV_VBURST_START_F3_SHIFT	16
1116 /**
1117  * Offset to the end of vertical colorburst, measured in one less than the
1118  * number of lines from the start of NBR.
1119  */
1120 # define TV_VBURST_END_F3_MASK		0x000000ff
1121 # define TV_VBURST_END_F3_SHIFT		0
1122 
1123 #define TV_V_CTL_7		0x68054
1124 /**
1125  * Offset to start of vertical colorburst, measured in one less than the
1126  * number of lines from vertical start.
1127  */
1128 # define TV_VBURST_START_F4_MASK	0x003f0000
1129 # define TV_VBURST_START_F4_SHIFT	16
1130 /**
1131  * Offset to the end of vertical colorburst, measured in one less than the
1132  * number of lines from the start of NBR.
1133  */
1134 # define TV_VBURST_END_F4_MASK		0x000000ff
1135 # define TV_VBURST_END_F4_SHIFT		0
1136 
1137 #define TV_SC_CTL_1		0x68060
1138 /** Turns on the first subcarrier phase generation DDA */
1139 # define TV_SC_DDA1_EN			(1 << 31)
1140 /** Turns on the first subcarrier phase generation DDA */
1141 # define TV_SC_DDA2_EN			(1 << 30)
1142 /** Turns on the first subcarrier phase generation DDA */
1143 # define TV_SC_DDA3_EN			(1 << 29)
1144 /** Sets the subcarrier DDA to reset frequency every other field */
1145 # define TV_SC_RESET_EVERY_2		(0 << 24)
1146 /** Sets the subcarrier DDA to reset frequency every fourth field */
1147 # define TV_SC_RESET_EVERY_4		(1 << 24)
1148 /** Sets the subcarrier DDA to reset frequency every eighth field */
1149 # define TV_SC_RESET_EVERY_8		(2 << 24)
1150 /** Sets the subcarrier DDA to never reset the frequency */
1151 # define TV_SC_RESET_NEVER		(3 << 24)
1152 /** Sets the peak amplitude of the colorburst.*/
1153 # define TV_BURST_LEVEL_MASK		0x00ff0000
1154 # define TV_BURST_LEVEL_SHIFT		16
1155 /** Sets the increment of the first subcarrier phase generation DDA */
1156 # define TV_SCDDA1_INC_MASK		0x00000fff
1157 # define TV_SCDDA1_INC_SHIFT		0
1158 
1159 #define TV_SC_CTL_2		0x68064
1160 /** Sets the rollover for the second subcarrier phase generation DDA */
1161 # define TV_SCDDA2_SIZE_MASK		0x7fff0000
1162 # define TV_SCDDA2_SIZE_SHIFT		16
1163 /** Sets the increent of the second subcarrier phase generation DDA */
1164 # define TV_SCDDA2_INC_MASK		0x00007fff
1165 # define TV_SCDDA2_INC_SHIFT		0
1166 
1167 #define TV_SC_CTL_3		0x68068
1168 /** Sets the rollover for the third subcarrier phase generation DDA */
1169 # define TV_SCDDA3_SIZE_MASK		0x7fff0000
1170 # define TV_SCDDA3_SIZE_SHIFT		16
1171 /** Sets the increent of the third subcarrier phase generation DDA */
1172 # define TV_SCDDA3_INC_MASK		0x00007fff
1173 # define TV_SCDDA3_INC_SHIFT		0
1174 
1175 #define TV_WIN_POS		0x68070
1176 /** X coordinate of the display from the start of horizontal active */
1177 # define TV_XPOS_MASK			0x1fff0000
1178 # define TV_XPOS_SHIFT			16
1179 /** Y coordinate of the display from the start of vertical active (NBR) */
1180 # define TV_YPOS_MASK			0x00000fff
1181 # define TV_YPOS_SHIFT			0
1182 
1183 #define TV_WIN_SIZE		0x68074
1184 /** Horizontal size of the display window, measured in pixels*/
1185 # define TV_XSIZE_MASK			0x1fff0000
1186 # define TV_XSIZE_SHIFT			16
1187 /**
1188  * Vertical size of the display window, measured in pixels.
1189  *
1190  * Must be even for interlaced modes.
1191  */
1192 # define TV_YSIZE_MASK			0x00000fff
1193 # define TV_YSIZE_SHIFT			0
1194 
1195 #define TV_FILTER_CTL_1		0x68080
1196 /**
1197  * Enables automatic scaling calculation.
1198  *
1199  * If set, the rest of the registers are ignored, and the calculated values can
1200  * be read back from the register.
1201  */
1202 # define TV_AUTO_SCALE			(1 << 31)
1203 /**
1204  * Disables the vertical filter.
1205  *
1206  * This is required on modes more than 1024 pixels wide */
1207 # define TV_V_FILTER_BYPASS		(1 << 29)
1208 /** Enables adaptive vertical filtering */
1209 # define TV_VADAPT			(1 << 28)
1210 # define TV_VADAPT_MODE_MASK		(3 << 26)
1211 /** Selects the least adaptive vertical filtering mode */
1212 # define TV_VADAPT_MODE_LEAST		(0 << 26)
1213 /** Selects the moderately adaptive vertical filtering mode */
1214 # define TV_VADAPT_MODE_MODERATE	(1 << 26)
1215 /** Selects the most adaptive vertical filtering mode */
1216 # define TV_VADAPT_MODE_MOST		(3 << 26)
1217 /**
1218  * Sets the horizontal scaling factor.
1219  *
1220  * This should be the fractional part of the horizontal scaling factor divided
1221  * by the oversampling rate.  TV_HSCALE should be less than 1, and set to:
1222  *
1223  * (src width - 1) / ((oversample * dest width) - 1)
1224  */
1225 # define TV_HSCALE_FRAC_MASK		0x00003fff
1226 # define TV_HSCALE_FRAC_SHIFT		0
1227 
1228 #define TV_FILTER_CTL_2		0x68084
1229 /**
1230  * Sets the integer part of the 3.15 fixed-point vertical scaling factor.
1231  *
1232  * TV_VSCALE should be (src height - 1) / ((interlace * dest height) - 1)
1233  */
1234 # define TV_VSCALE_INT_MASK		0x00038000
1235 # define TV_VSCALE_INT_SHIFT		15
1236 /**
1237  * Sets the fractional part of the 3.15 fixed-point vertical scaling factor.
1238  *
1239  * \sa TV_VSCALE_INT_MASK
1240  */
1241 # define TV_VSCALE_FRAC_MASK		0x00007fff
1242 # define TV_VSCALE_FRAC_SHIFT		0
1243 
1244 #define TV_FILTER_CTL_3		0x68088
1245 /**
1246  * Sets the integer part of the 3.15 fixed-point vertical scaling factor.
1247  *
1248  * TV_VSCALE should be (src height - 1) / (1/4 * (dest height - 1))
1249  *
1250  * For progressive modes, TV_VSCALE_IP_INT should be set to zeroes.
1251  */
1252 # define TV_VSCALE_IP_INT_MASK		0x00038000
1253 # define TV_VSCALE_IP_INT_SHIFT		15
1254 /**
1255  * Sets the fractional part of the 3.15 fixed-point vertical scaling factor.
1256  *
1257  * For progressive modes, TV_VSCALE_IP_INT should be set to zeroes.
1258  *
1259  * \sa TV_VSCALE_IP_INT_MASK
1260  */
1261 # define TV_VSCALE_IP_FRAC_MASK		0x00007fff
1262 # define TV_VSCALE_IP_FRAC_SHIFT		0
1263 
1264 #define TV_CC_CONTROL		0x68090
1265 # define TV_CC_ENABLE			(1 << 31)
1266 /**
1267  * Specifies which field to send the CC data in.
1268  *
1269  * CC data is usually sent in field 0.
1270  */
1271 # define TV_CC_FID_MASK			(1 << 27)
1272 # define TV_CC_FID_SHIFT		27
1273 /** Sets the horizontal position of the CC data.  Usually 135. */
1274 # define TV_CC_HOFF_MASK		0x03ff0000
1275 # define TV_CC_HOFF_SHIFT		16
1276 /** Sets the vertical position of the CC data.  Usually 21 */
1277 # define TV_CC_LINE_MASK		0x0000003f
1278 # define TV_CC_LINE_SHIFT		0
1279 
1280 #define TV_CC_DATA		0x68094
1281 # define TV_CC_RDY			(1 << 31)
1282 /** Second word of CC data to be transmitted. */
1283 # define TV_CC_DATA_2_MASK		0x007f0000
1284 # define TV_CC_DATA_2_SHIFT		16
1285 /** First word of CC data to be transmitted. */
1286 # define TV_CC_DATA_1_MASK		0x0000007f
1287 # define TV_CC_DATA_1_SHIFT		0
1288 
1289 #define TV_H_LUMA_0		0x68100
1290 #define TV_H_LUMA_59		0x681ec
1291 #define TV_H_CHROMA_0		0x68200
1292 #define TV_H_CHROMA_59		0x682ec
1293 #define TV_V_LUMA_0		0x68300
1294 #define TV_V_LUMA_42		0x683a8
1295 #define TV_V_CHROMA_0		0x68400
1296 #define TV_V_CHROMA_42		0x684a8
1297 
1298 /* Display & cursor control */
1299 
1300 /* Pipe A */
1301 #define PIPEADSL		0x70000
1302 #define PIPEACONF		0x70008
1303 #define   PIPEACONF_ENABLE	(1<<31)
1304 #define   PIPEACONF_DISABLE	0
1305 #define   PIPEACONF_DOUBLE_WIDE	(1<<30)
1306 #define   I965_PIPECONF_ACTIVE	(1<<30)
1307 #define   PIPEACONF_SINGLE_WIDE	0
1308 #define   PIPEACONF_PIPE_UNLOCKED 0
1309 #define   PIPEACONF_PIPE_LOCKED	(1<<25)
1310 #define   PIPEACONF_PALETTE	0
1311 #define   PIPEACONF_GAMMA		(1<<24)
1312 #define   PIPECONF_FORCE_BORDER	(1<<25)
1313 #define   PIPECONF_PROGRESSIVE	(0 << 21)
1314 #define   PIPECONF_INTERLACE_W_FIELD_INDICATION	(6 << 21)
1315 #define   PIPECONF_INTERLACE_FIELD_0_ONLY		(7 << 21)
1316 #define PIPEASTAT		0x70024
1317 #define   PIPE_FIFO_UNDERRUN_STATUS		(1UL<<31)
1318 #define   PIPE_CRC_ERROR_ENABLE			(1UL<<29)
1319 #define   PIPE_CRC_DONE_ENABLE			(1UL<<28)
1320 #define   PIPE_GMBUS_EVENT_ENABLE		(1UL<<27)
1321 #define   PIPE_HOTPLUG_INTERRUPT_ENABLE		(1UL<<26)
1322 #define   PIPE_VSYNC_INTERRUPT_ENABLE		(1UL<<25)
1323 #define   PIPE_DISPLAY_LINE_COMPARE_ENABLE	(1UL<<24)
1324 #define   PIPE_DPST_EVENT_ENABLE		(1UL<<23)
1325 #define   PIPE_LEGACY_BLC_EVENT_ENABLE		(1UL<<22)
1326 #define   PIPE_ODD_FIELD_INTERRUPT_ENABLE	(1UL<<21)
1327 #define   PIPE_EVEN_FIELD_INTERRUPT_ENABLE	(1UL<<20)
1328 #define   PIPE_HOTPLUG_TV_INTERRUPT_ENABLE	(1UL<<18) /* pre-965 */
1329 #define   PIPE_START_VBLANK_INTERRUPT_ENABLE	(1UL<<18) /* 965 or later */
1330 #define   PIPE_VBLANK_INTERRUPT_ENABLE		(1UL<<17)
1331 #define   PIPE_OVERLAY_UPDATED_ENABLE		(1UL<<16)
1332 #define   PIPE_CRC_ERROR_INTERRUPT_STATUS	(1UL<<13)
1333 #define   PIPE_CRC_DONE_INTERRUPT_STATUS	(1UL<<12)
1334 #define   PIPE_GMBUS_INTERRUPT_STATUS		(1UL<<11)
1335 #define   PIPE_HOTPLUG_INTERRUPT_STATUS		(1UL<<10)
1336 #define   PIPE_VSYNC_INTERRUPT_STATUS		(1UL<<9)
1337 #define   PIPE_DISPLAY_LINE_COMPARE_STATUS	(1UL<<8)
1338 #define   PIPE_DPST_EVENT_STATUS		(1UL<<7)
1339 #define   PIPE_LEGACY_BLC_EVENT_STATUS		(1UL<<6)
1340 #define   PIPE_ODD_FIELD_INTERRUPT_STATUS	(1UL<<5)
1341 #define   PIPE_EVEN_FIELD_INTERRUPT_STATUS	(1UL<<4)
1342 #define   PIPE_HOTPLUG_TV_INTERRUPT_STATUS	(1UL<<2) /* pre-965 */
1343 #define   PIPE_START_VBLANK_INTERRUPT_STATUS	(1UL<<2) /* 965 or later */
1344 #define   PIPE_VBLANK_INTERRUPT_STATUS		(1UL<<1)
1345 #define   PIPE_OVERLAY_UPDATED_STATUS		(1UL<<0)
1346 
1347 #define DSPARB			0x70030
1348 #define   DSPARB_CSTART_MASK	(0x7f << 7)
1349 #define   DSPARB_CSTART_SHIFT	7
1350 #define   DSPARB_BSTART_MASK	(0x7f)
1351 #define   DSPARB_BSTART_SHIFT	0
1352 /*
1353  * The two pipe frame counter registers are not synchronized, so
1354  * reading a stable value is somewhat tricky. The following code
1355  * should work:
1356  *
1357  *  do {
1358  *    high1 = ((INREG(PIPEAFRAMEHIGH) & PIPE_FRAME_HIGH_MASK) >>
1359  *             PIPE_FRAME_HIGH_SHIFT;
1360  *    low1 =  ((INREG(PIPEAFRAMEPIXEL) & PIPE_FRAME_LOW_MASK) >>
1361  *             PIPE_FRAME_LOW_SHIFT);
1362  *    high2 = ((INREG(PIPEAFRAMEHIGH) & PIPE_FRAME_HIGH_MASK) >>
1363  *             PIPE_FRAME_HIGH_SHIFT);
1364  *  } while (high1 != high2);
1365  *  frame = (high1 << 8) | low1;
1366  */
1367 #define PIPEAFRAMEHIGH          0x70040
1368 #define   PIPE_FRAME_HIGH_MASK    0x0000ffff
1369 #define   PIPE_FRAME_HIGH_SHIFT   0
1370 #define PIPEAFRAMEPIXEL         0x70044
1371 #define   PIPE_FRAME_LOW_MASK     0xff000000
1372 #define   PIPE_FRAME_LOW_SHIFT    24
1373 #define   PIPE_PIXEL_MASK         0x00ffffff
1374 #define   PIPE_PIXEL_SHIFT        0
1375 /* GM45+ just has to be different */
1376 #define PIPEA_FRMCOUNT_GM45	0x70040
1377 #define PIPEA_FLIPCOUNT_GM45	0x70044
1378 
1379 /* Cursor A & B regs */
1380 #define CURACNTR		0x70080
1381 #define   CURSOR_MODE_DISABLE   0x00
1382 #define   CURSOR_MODE_64_32B_AX 0x07
1383 #define   CURSOR_MODE_64_ARGB_AX ((1 << 5) | CURSOR_MODE_64_32B_AX)
1384 #define   MCURSOR_GAMMA_ENABLE  (1 << 26)
1385 #define CURABASE		0x70084
1386 #define CURAPOS			0x70088
1387 #define   CURSOR_POS_MASK       0x007FF
1388 #define   CURSOR_POS_SIGN       0x8000
1389 #define   CURSOR_X_SHIFT        0
1390 #define   CURSOR_Y_SHIFT        16
1391 #define CURBCNTR		0x700c0
1392 #define CURBBASE		0x700c4
1393 #define CURBPOS			0x700c8
1394 
1395 /* Display A control */
1396 #define DSPACNTR                0x70180
1397 #define   DISPLAY_PLANE_ENABLE			(1<<31)
1398 #define   DISPLAY_PLANE_DISABLE			0
1399 #define   DISPPLANE_GAMMA_ENABLE		(1<<30)
1400 #define   DISPPLANE_GAMMA_DISABLE		0
1401 #define   DISPPLANE_PIXFORMAT_MASK		(0xf<<26)
1402 #define   DISPPLANE_8BPP			(0x2<<26)
1403 #define   DISPPLANE_15_16BPP			(0x4<<26)
1404 #define   DISPPLANE_16BPP			(0x5<<26)
1405 #define   DISPPLANE_32BPP_NO_ALPHA		(0x6<<26)
1406 #define   DISPPLANE_32BPP			(0x7<<26)
1407 #define   DISPPLANE_STEREO_ENABLE		(1<<25)
1408 #define   DISPPLANE_STEREO_DISABLE		0
1409 #define   DISPPLANE_SEL_PIPE_MASK		(1<<24)
1410 #define   DISPPLANE_SEL_PIPE_A			0
1411 #define   DISPPLANE_SEL_PIPE_B			(1<<24)
1412 #define   DISPPLANE_SRC_KEY_ENABLE		(1<<22)
1413 #define   DISPPLANE_SRC_KEY_DISABLE		0
1414 #define   DISPPLANE_LINE_DOUBLE			(1<<20)
1415 #define   DISPPLANE_NO_LINE_DOUBLE		0
1416 #define   DISPPLANE_STEREO_POLARITY_FIRST	0
1417 #define   DISPPLANE_STEREO_POLARITY_SECOND	(1<<18)
1418 #define DSPAADDR		0x70184
1419 #define DSPASTRIDE		0x70188
1420 #define DSPAPOS			0x7018C /* reserved */
1421 #define DSPASIZE		0x70190
1422 #define DSPASURF		0x7019C /* 965+ only */
1423 #define DSPATILEOFF		0x701A4 /* 965+ only */
1424 
1425 /* VBIOS flags */
1426 #define SWF00			0x71410
1427 #define SWF01			0x71414
1428 #define SWF02			0x71418
1429 #define SWF03			0x7141c
1430 #define SWF04			0x71420
1431 #define SWF05			0x71424
1432 #define SWF06			0x71428
1433 #define SWF10			0x70410
1434 #define SWF11			0x70414
1435 #define SWF14			0x71420
1436 #define SWF30			0x72414
1437 #define SWF31			0x72418
1438 #define SWF32			0x7241c
1439 
1440 /* Pipe B */
1441 #define PIPEBDSL		0x71000
1442 #define PIPEBCONF		0x71008
1443 #define PIPEBSTAT		0x71024
1444 #define PIPEBFRAMEHIGH		0x71040
1445 #define PIPEBFRAMEPIXEL		0x71044
1446 #define PIPEB_FRMCOUNT_GM45	0x71040
1447 #define PIPEB_FLIPCOUNT_GM45	0x71044
1448 
1449 
1450 /* Display B control */
1451 #define DSPBCNTR		0x71180
1452 #define   DISPPLANE_ALPHA_TRANS_ENABLE		(1<<15)
1453 #define   DISPPLANE_ALPHA_TRANS_DISABLE		0
1454 #define   DISPPLANE_SPRITE_ABOVE_DISPLAY	0
1455 #define   DISPPLANE_SPRITE_ABOVE_OVERLAY	(1)
1456 #define DSPBADDR		0x71184
1457 #define DSPBSTRIDE		0x71188
1458 #define DSPBPOS			0x7118C
1459 #define DSPBSIZE		0x71190
1460 #define DSPBSURF		0x7119C
1461 #define DSPBTILEOFF		0x711A4
1462 
1463 /* VBIOS regs */
1464 #define VGACNTRL		0x71400
1465 # define VGA_DISP_DISABLE			(1 << 31)
1466 # define VGA_2X_MODE				(1 << 30)
1467 # define VGA_PIPE_B_SELECT			(1 << 29)
1468 
1469 #endif /* _I915_REG_H_ */
1470