OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4

[zen-stable.git] / drivers / gpu / drm / i915 / i915_reg.h

/* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
 * 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, sub license, 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 NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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 _I915_REG_H_
#define _I915_REG_H_

#define _PIPE(pipe, a, b) ((a) + (pipe)*((b)-(a)))

/*
 * The Bridge device's PCI config space has information about the
 * fb aperture size and the amount of pre-reserved memory.
 * This is all handled in the intel-gtt.ko module. i915.ko only
 * cares about the vga bit for the vga rbiter.
 */
#define INTEL_GMCH_CTRL         0x52
#define INTEL_GMCH_VGA_DISABLE  (1 << 1)

/* PCI config space */

#define HPLLCC  0xc0 /* 855 only */
#define   GC_CLOCK_CONTROL_MASK         (0xf << 0)
#define   GC_CLOCK_133_200              (0 << 0)
#define   GC_CLOCK_100_200              (1 << 0)
#define   GC_CLOCK_100_133              (2 << 0)
#define   GC_CLOCK_166_250              (3 << 0)
#define GCFGC2  0xda
#define GCFGC   0xf0 /* 915+ only */
#define   GC_LOW_FREQUENCY_ENABLE       (1 << 7)
#define   GC_DISPLAY_CLOCK_190_200_MHZ  (0 << 4)
#define   GC_DISPLAY_CLOCK_333_MHZ      (4 << 4)
#define   GC_DISPLAY_CLOCK_MASK         (7 << 4)
#define   GM45_GC_RENDER_CLOCK_MASK     (0xf << 0)
#define   GM45_GC_RENDER_CLOCK_266_MHZ  (8 << 0)
#define   GM45_GC_RENDER_CLOCK_320_MHZ  (9 << 0)
#define   GM45_GC_RENDER_CLOCK_400_MHZ  (0xb << 0)
#define   GM45_GC_RENDER_CLOCK_533_MHZ  (0xc << 0)
#define   I965_GC_RENDER_CLOCK_MASK     (0xf << 0)
#define   I965_GC_RENDER_CLOCK_267_MHZ  (2 << 0)
#define   I965_GC_RENDER_CLOCK_333_MHZ  (3 << 0)
#define   I965_GC_RENDER_CLOCK_444_MHZ  (4 << 0)
#define   I965_GC_RENDER_CLOCK_533_MHZ  (5 << 0)
#define   I945_GC_RENDER_CLOCK_MASK     (7 << 0)
#define   I945_GC_RENDER_CLOCK_166_MHZ  (0 << 0)
#define   I945_GC_RENDER_CLOCK_200_MHZ  (1 << 0)
#define   I945_GC_RENDER_CLOCK_250_MHZ  (3 << 0)
#define   I945_GC_RENDER_CLOCK_400_MHZ  (5 << 0)
#define   I915_GC_RENDER_CLOCK_MASK     (7 << 0)
#define   I915_GC_RENDER_CLOCK_166_MHZ  (0 << 0)
#define   I915_GC_RENDER_CLOCK_200_MHZ  (1 << 0)
#define   I915_GC_RENDER_CLOCK_333_MHZ  (4 << 0)
#define LBB     0xf4

/* Graphics reset regs */
#define I965_GDRST 0xc0 /* PCI config register */
#define ILK_GDSR 0x2ca4 /* MCHBAR offset */
#define  GRDOM_FULL     (0<<2)
#define  GRDOM_RENDER   (1<<2)
#define  GRDOM_MEDIA    (3<<2)

#define GEN6_MBCUNIT_SNPCR      0x900c /* for LLC config */
#define   GEN6_MBC_SNPCR_SHIFT  21
#define   GEN6_MBC_SNPCR_MASK   (3<<21)
#define   GEN6_MBC_SNPCR_MAX    (0<<21)
#define   GEN6_MBC_SNPCR_MED    (1<<21)
#define   GEN6_MBC_SNPCR_LOW    (2<<21)
#define   GEN6_MBC_SNPCR_MIN    (3<<21) /* only 1/16th of the cache is shared */

#define GEN6_GDRST      0x941c
#define  GEN6_GRDOM_FULL                (1 << 0)
#define  GEN6_GRDOM_RENDER              (1 << 1)
#define  GEN6_GRDOM_MEDIA               (1 << 2)
#define  GEN6_GRDOM_BLT                 (1 << 3)

/* VGA stuff */

#define VGA_ST01_MDA 0x3ba
#define VGA_ST01_CGA 0x3da

#define VGA_MSR_WRITE 0x3c2
#define VGA_MSR_READ 0x3cc
#define   VGA_MSR_MEM_EN (1<<1)
#define   VGA_MSR_CGA_MODE (1<<0)

#define VGA_SR_INDEX 0x3c4
#define VGA_SR_DATA 0x3c5

#define VGA_AR_INDEX 0x3c0
#define   VGA_AR_VID_EN (1<<5)
#define VGA_AR_DATA_WRITE 0x3c0
#define VGA_AR_DATA_READ 0x3c1

#define VGA_GR_INDEX 0x3ce
#define VGA_GR_DATA 0x3cf
/* GR05 */
#define   VGA_GR_MEM_READ_MODE_SHIFT 3
#define     VGA_GR_MEM_READ_MODE_PLANE 1
/* GR06 */
#define   VGA_GR_MEM_MODE_MASK 0xc
#define   VGA_GR_MEM_MODE_SHIFT 2
#define   VGA_GR_MEM_A0000_AFFFF 0
#define   VGA_GR_MEM_A0000_BFFFF 1
#define   VGA_GR_MEM_B0000_B7FFF 2
#define   VGA_GR_MEM_B0000_BFFFF 3

#define VGA_DACMASK 0x3c6
#define VGA_DACRX 0x3c7
#define VGA_DACWX 0x3c8
#define VGA_DACDATA 0x3c9

#define VGA_CR_INDEX_MDA 0x3b4
#define VGA_CR_DATA_MDA 0x3b5
#define VGA_CR_INDEX_CGA 0x3d4
#define VGA_CR_DATA_CGA 0x3d5

/*
 * Memory interface instructions used by the kernel
 */
#define MI_INSTR(opcode, flags) (((opcode) << 23) | (flags))

#define MI_NOOP                 MI_INSTR(0, 0)
#define MI_USER_INTERRUPT       MI_INSTR(0x02, 0)
#define MI_WAIT_FOR_EVENT       MI_INSTR(0x03, 0)
#define   MI_WAIT_FOR_OVERLAY_FLIP      (1<<16)
#define   MI_WAIT_FOR_PLANE_B_FLIP      (1<<6)
#define   MI_WAIT_FOR_PLANE_A_FLIP      (1<<2)
#define   MI_WAIT_FOR_PLANE_A_SCANLINES (1<<1)
#define MI_FLUSH                MI_INSTR(0x04, 0)
#define   MI_READ_FLUSH         (1 << 0)
#define   MI_EXE_FLUSH          (1 << 1)
#define   MI_NO_WRITE_FLUSH     (1 << 2)
#define   MI_SCENE_COUNT        (1 << 3) /* just increment scene count */
#define   MI_END_SCENE          (1 << 4) /* flush binner and incr scene count */
#define   MI_INVALIDATE_ISP     (1 << 5) /* invalidate indirect state pointers */
#define MI_BATCH_BUFFER_END     MI_INSTR(0x0a, 0)
#define MI_SUSPEND_FLUSH        MI_INSTR(0x0b, 0)
#define   MI_SUSPEND_FLUSH_EN   (1<<0)
#define MI_REPORT_HEAD          MI_INSTR(0x07, 0)
#define MI_OVERLAY_FLIP         MI_INSTR(0x11, 0)
#define   MI_OVERLAY_CONTINUE   (0x0<<21)
#define   MI_OVERLAY_ON         (0x1<<21)
#define   MI_OVERLAY_OFF        (0x2<<21)
#define MI_LOAD_SCAN_LINES_INCL MI_INSTR(0x12, 0)
#define MI_DISPLAY_FLIP         MI_INSTR(0x14, 2)
#define MI_DISPLAY_FLIP_I915    MI_INSTR(0x14, 1)
#define   MI_DISPLAY_FLIP_PLANE(n) ((n) << 20)
#define MI_SET_CONTEXT          MI_INSTR(0x18, 0)
#define   MI_MM_SPACE_GTT               (1<<8)
#define   MI_MM_SPACE_PHYSICAL          (0<<8)
#define   MI_SAVE_EXT_STATE_EN          (1<<3)
#define   MI_RESTORE_EXT_STATE_EN       (1<<2)
#define   MI_FORCE_RESTORE              (1<<1)
#define   MI_RESTORE_INHIBIT            (1<<0)
#define MI_STORE_DWORD_IMM      MI_INSTR(0x20, 1)
#define   MI_MEM_VIRTUAL        (1 << 22) /* 965+ only */
#define MI_STORE_DWORD_INDEX    MI_INSTR(0x21, 1)
#define   MI_STORE_DWORD_INDEX_SHIFT 2
/* Official intel docs are somewhat sloppy concerning MI_LOAD_REGISTER_IMM:
 * - Always issue a MI_NOOP _before_ the MI_LOAD_REGISTER_IMM - otherwise hw
 *   simply ignores the register load under certain conditions.
 * - One can actually load arbitrary many arbitrary registers: Simply issue x
 *   address/value pairs. Don't overdue it, though, x <= 2^4 must hold!
 */
#define MI_LOAD_REGISTER_IMM(x) MI_INSTR(0x22, 2*x-1)
#define MI_FLUSH_DW             MI_INSTR(0x26, 1) /* for GEN6 */
#define   MI_INVALIDATE_TLB     (1<<18)
#define   MI_INVALIDATE_BSD     (1<<7)
#define MI_BATCH_BUFFER         MI_INSTR(0x30, 1)
#define   MI_BATCH_NON_SECURE   (1)
#define   MI_BATCH_NON_SECURE_I965 (1<<8)
#define MI_BATCH_BUFFER_START   MI_INSTR(0x31, 0)
#define MI_SEMAPHORE_MBOX       MI_INSTR(0x16, 1) /* gen6+ */
#define  MI_SEMAPHORE_GLOBAL_GTT    (1<<22)
#define  MI_SEMAPHORE_UPDATE        (1<<21)
#define  MI_SEMAPHORE_COMPARE       (1<<20)
#define  MI_SEMAPHORE_REGISTER      (1<<18)
#define  MI_SEMAPHORE_SYNC_RV       (2<<16)
#define  MI_SEMAPHORE_SYNC_RB       (0<<16)
#define  MI_SEMAPHORE_SYNC_VR       (0<<16)
#define  MI_SEMAPHORE_SYNC_VB       (2<<16)
#define  MI_SEMAPHORE_SYNC_BR       (2<<16)
#define  MI_SEMAPHORE_SYNC_BV       (0<<16)
#define  MI_SEMAPHORE_SYNC_INVALID  (1<<0)
/*
 * 3D instructions used by the kernel
 */
#define GFX_INSTR(opcode, flags) ((0x3 << 29) | ((opcode) << 24) | (flags))

#define GFX_OP_RASTER_RULES    ((0x3<<29)|(0x7<<24))
#define GFX_OP_SCISSOR         ((0x3<<29)|(0x1c<<24)|(0x10<<19))
#define   SC_UPDATE_SCISSOR       (0x1<<1)
#define   SC_ENABLE_MASK          (0x1<<0)
#define   SC_ENABLE               (0x1<<0)
#define GFX_OP_LOAD_INDIRECT   ((0x3<<29)|(0x1d<<24)|(0x7<<16))
#define GFX_OP_SCISSOR_INFO    ((0x3<<29)|(0x1d<<24)|(0x81<<16)|(0x1))
#define   SCI_YMIN_MASK      (0xffff<<16)
#define   SCI_XMIN_MASK      (0xffff<<0)
#define   SCI_YMAX_MASK      (0xffff<<16)
#define   SCI_XMAX_MASK      (0xffff<<0)
#define GFX_OP_SCISSOR_ENABLE    ((0x3<<29)|(0x1c<<24)|(0x10<<19))
#define GFX_OP_SCISSOR_RECT      ((0x3<<29)|(0x1d<<24)|(0x81<<16)|1)
#define GFX_OP_COLOR_FACTOR      ((0x3<<29)|(0x1d<<24)|(0x1<<16)|0x0)
#define GFX_OP_STIPPLE           ((0x3<<29)|(0x1d<<24)|(0x83<<16))
#define GFX_OP_MAP_INFO          ((0x3<<29)|(0x1d<<24)|0x4)
#define GFX_OP_DESTBUFFER_VARS   ((0x3<<29)|(0x1d<<24)|(0x85<<16)|0x0)
#define GFX_OP_DESTBUFFER_INFO   ((0x3<<29)|(0x1d<<24)|(0x8e<<16)|1)
#define GFX_OP_DRAWRECT_INFO     ((0x3<<29)|(0x1d<<24)|(0x80<<16)|(0x3))
#define GFX_OP_DRAWRECT_INFO_I965  ((0x7900<<16)|0x2)
#define SRC_COPY_BLT_CMD                ((2<<29)|(0x43<<22)|4)
#define XY_SRC_COPY_BLT_CMD             ((2<<29)|(0x53<<22)|6)
#define XY_MONO_SRC_COPY_IMM_BLT        ((2<<29)|(0x71<<22)|5)
#define XY_SRC_COPY_BLT_WRITE_ALPHA     (1<<21)
#define XY_SRC_COPY_BLT_WRITE_RGB       (1<<20)
#define   BLT_DEPTH_8                   (0<<24)
#define   BLT_DEPTH_16_565              (1<<24)
#define   BLT_DEPTH_16_1555             (2<<24)
#define   BLT_DEPTH_32                  (3<<24)
#define   BLT_ROP_GXCOPY                (0xcc<<16)
#define XY_SRC_COPY_BLT_SRC_TILED       (1<<15) /* 965+ only */
#define XY_SRC_COPY_BLT_DST_TILED       (1<<11) /* 965+ only */
#define CMD_OP_DISPLAYBUFFER_INFO ((0x0<<29)|(0x14<<23)|2)
#define   ASYNC_FLIP                (1<<22)
#define   DISPLAY_PLANE_A           (0<<20)
#define   DISPLAY_PLANE_B           (1<<20)
#define GFX_OP_PIPE_CONTROL(len)        ((0x3<<29)|(0x3<<27)|(0x2<<24)|(len-2))
#define   PIPE_CONTROL_CS_STALL                         (1<<20)
#define   PIPE_CONTROL_QW_WRITE                         (1<<14)
#define   PIPE_CONTROL_DEPTH_STALL                      (1<<13)
#define   PIPE_CONTROL_WRITE_FLUSH                      (1<<12)
#define   PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH        (1<<12) /* gen6+ */
#define   PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE     (1<<11) /* MBZ on Ironlake */
#define   PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE         (1<<10) /* GM45+ only */
#define   PIPE_CONTROL_INDIRECT_STATE_DISABLE           (1<<9)
#define   PIPE_CONTROL_NOTIFY                           (1<<8)
#define   PIPE_CONTROL_VF_CACHE_INVALIDATE              (1<<4)
#define   PIPE_CONTROL_CONST_CACHE_INVALIDATE           (1<<3)
#define   PIPE_CONTROL_STATE_CACHE_INVALIDATE           (1<<2)
#define   PIPE_CONTROL_STALL_AT_SCOREBOARD              (1<<1)
#define   PIPE_CONTROL_DEPTH_CACHE_FLUSH                (1<<0)
#define   PIPE_CONTROL_GLOBAL_GTT (1<<2) /* in addr dword */


/*
 * Reset registers
 */
#define DEBUG_RESET_I830                0x6070
#define  DEBUG_RESET_FULL               (1<<7)
#define  DEBUG_RESET_RENDER             (1<<8)
#define  DEBUG_RESET_DISPLAY            (1<<9)


/*
 * Fence registers
 */
#define FENCE_REG_830_0                 0x2000
#define FENCE_REG_945_8                 0x3000
#define   I830_FENCE_START_MASK         0x07f80000
#define   I830_FENCE_TILING_Y_SHIFT     12
#define   I830_FENCE_SIZE_BITS(size)    ((ffs((size) >> 19) - 1) << 8)
#define   I830_FENCE_PITCH_SHIFT        4
#define   I830_FENCE_REG_VALID          (1<<0)
#define   I915_FENCE_MAX_PITCH_VAL      4
#define   I830_FENCE_MAX_PITCH_VAL      6
#define   I830_FENCE_MAX_SIZE_VAL       (1<<8)

#define   I915_FENCE_START_MASK         0x0ff00000
#define   I915_FENCE_SIZE_BITS(size)    ((ffs((size) >> 20) - 1) << 8)

#define FENCE_REG_965_0                 0x03000
#define   I965_FENCE_PITCH_SHIFT        2
#define   I965_FENCE_TILING_Y_SHIFT     1
#define   I965_FENCE_REG_VALID          (1<<0)
#define   I965_FENCE_MAX_PITCH_VAL      0x0400

#define FENCE_REG_SANDYBRIDGE_0         0x100000
#define   SANDYBRIDGE_FENCE_PITCH_SHIFT 32

/*
 * Instruction and interrupt control regs
 */
#define PGTBL_ER        0x02024
#define RENDER_RING_BASE        0x02000
#define BSD_RING_BASE           0x04000
#define GEN6_BSD_RING_BASE      0x12000
#define BLT_RING_BASE           0x22000
#define RING_TAIL(base)         ((base)+0x30)
#define RING_HEAD(base)         ((base)+0x34)
#define RING_START(base)        ((base)+0x38)
#define RING_CTL(base)          ((base)+0x3c)
#define RING_SYNC_0(base)       ((base)+0x40)
#define RING_SYNC_1(base)       ((base)+0x44)
#define GEN6_RVSYNC (RING_SYNC_0(RENDER_RING_BASE))
#define GEN6_RBSYNC (RING_SYNC_1(RENDER_RING_BASE))
#define GEN6_VRSYNC (RING_SYNC_1(GEN6_BSD_RING_BASE))
#define GEN6_VBSYNC (RING_SYNC_0(GEN6_BSD_RING_BASE))
#define GEN6_BRSYNC (RING_SYNC_0(BLT_RING_BASE))
#define GEN6_BVSYNC (RING_SYNC_1(BLT_RING_BASE))
#define RING_MAX_IDLE(base)     ((base)+0x54)
#define RING_HWS_PGA(base)      ((base)+0x80)
#define RING_HWS_PGA_GEN6(base) ((base)+0x2080)
#define RENDER_HWS_PGA_GEN7     (0x04080)
#define BSD_HWS_PGA_GEN7        (0x04180)
#define BLT_HWS_PGA_GEN7        (0x04280)
#define RING_ACTHD(base)        ((base)+0x74)
#define RING_NOPID(base)        ((base)+0x94)
#define RING_IMR(base)          ((base)+0xa8)
#define   TAIL_ADDR             0x001FFFF8
#define   HEAD_WRAP_COUNT       0xFFE00000
#define   HEAD_WRAP_ONE         0x00200000
#define   HEAD_ADDR             0x001FFFFC
#define   RING_NR_PAGES         0x001FF000
#define   RING_REPORT_MASK      0x00000006
#define   RING_REPORT_64K       0x00000002
#define   RING_REPORT_128K      0x00000004
#define   RING_NO_REPORT        0x00000000
#define   RING_VALID_MASK       0x00000001
#define   RING_VALID            0x00000001
#define   RING_INVALID          0x00000000
#define   RING_WAIT_I8XX        (1<<0) /* gen2, PRBx_HEAD */
#define   RING_WAIT             (1<<11) /* gen3+, PRBx_CTL */
#define   RING_WAIT_SEMAPHORE   (1<<10) /* gen6+ */
#if 0
#define PRB0_TAIL       0x02030
#define PRB0_HEAD       0x02034
#define PRB0_START      0x02038
#define PRB0_CTL        0x0203c
#define PRB1_TAIL       0x02040 /* 915+ only */
#define PRB1_HEAD       0x02044 /* 915+ only */
#define PRB1_START      0x02048 /* 915+ only */
#define PRB1_CTL        0x0204c /* 915+ only */
#endif
#define IPEIR_I965      0x02064
#define IPEHR_I965      0x02068
#define INSTDONE_I965   0x0206c
#define INSTPS          0x02070 /* 965+ only */
#define INSTDONE1       0x0207c /* 965+ only */
#define ACTHD_I965      0x02074
#define HWS_PGA         0x02080
#define HWS_ADDRESS_MASK        0xfffff000
#define HWS_START_ADDRESS_SHIFT 4
#define PWRCTXA         0x2088 /* 965GM+ only */
#define   PWRCTX_EN     (1<<0)
#define IPEIR           0x02088
#define IPEHR           0x0208c
#define INSTDONE        0x02090
#define NOPID           0x02094
#define HWSTAM          0x02098
#define VCS_INSTDONE    0x1206C
#define VCS_IPEIR       0x12064
#define VCS_IPEHR       0x12068
#define VCS_ACTHD       0x12074
#define BCS_INSTDONE    0x2206C
#define BCS_IPEIR       0x22064
#define BCS_IPEHR       0x22068
#define BCS_ACTHD       0x22074

#define ERROR_GEN6      0x040a0

/* GM45+ chicken bits -- debug workaround bits that may be required
 * for various sorts of correct behavior.  The top 16 bits of each are
 * the enables for writing to the corresponding low bit.
 */
#define _3D_CHICKEN     0x02084
#define _3D_CHICKEN2    0x0208c
/* Disables pipelining of read flushes past the SF-WIZ interface.
 * Required on all Ironlake steppings according to the B-Spec, but the
 * particular danger of not doing so is not specified.
 */
# define _3D_CHICKEN2_WM_READ_PIPELINED                 (1 << 14)
#define _3D_CHICKEN3    0x02090

#define MI_MODE         0x0209c
# define VS_TIMER_DISPATCH                              (1 << 6)
# define MI_FLUSH_ENABLE                                (1 << 11)

#define GFX_MODE        0x02520
#define GFX_MODE_GEN7   0x0229c
#define   GFX_RUN_LIST_ENABLE           (1<<15)
#define   GFX_TLB_INVALIDATE_ALWAYS     (1<<13)
#define   GFX_SURFACE_FAULT_ENABLE      (1<<12)
#define   GFX_REPLAY_MODE               (1<<11)
#define   GFX_PSMI_GRANULARITY          (1<<10)
#define   GFX_PPGTT_ENABLE              (1<<9)

#define GFX_MODE_ENABLE(bit) (((bit) << 16) | (bit))
#define GFX_MODE_DISABLE(bit) (((bit) << 16) | (0))

#define SCPD0           0x0209c /* 915+ only */
#define IER             0x020a0
#define IIR             0x020a4
#define IMR             0x020a8
#define ISR             0x020ac
#define   I915_PIPE_CONTROL_NOTIFY_INTERRUPT            (1<<18)
#define   I915_DISPLAY_PORT_INTERRUPT                   (1<<17)
#define   I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT    (1<<15)
#define   I915_GMCH_THERMAL_SENSOR_EVENT_INTERRUPT      (1<<14) /* p-state */
#define   I915_HWB_OOM_INTERRUPT                        (1<<13)
#define   I915_SYNC_STATUS_INTERRUPT                    (1<<12)
#define   I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT   (1<<11)
#define   I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT   (1<<10)
#define   I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT     (1<<9)
#define   I915_DISPLAY_PLANE_C_FLIP_PENDING_INTERRUPT   (1<<8)
#define   I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT          (1<<7)
#define   I915_DISPLAY_PIPE_A_EVENT_INTERRUPT           (1<<6)
#define   I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT          (1<<5)
#define   I915_DISPLAY_PIPE_B_EVENT_INTERRUPT           (1<<4)
#define   I915_DEBUG_INTERRUPT                          (1<<2)
#define   I915_USER_INTERRUPT                           (1<<1)
#define   I915_ASLE_INTERRUPT                           (1<<0)
#define   I915_BSD_USER_INTERRUPT                      (1<<25)
#define EIR             0x020b0
#define EMR             0x020b4
#define ESR             0x020b8
#define   GM45_ERROR_PAGE_TABLE                         (1<<5)
#define   GM45_ERROR_MEM_PRIV                           (1<<4)
#define   I915_ERROR_PAGE_TABLE                         (1<<4)
#define   GM45_ERROR_CP_PRIV                            (1<<3)
#define   I915_ERROR_MEMORY_REFRESH                     (1<<1)
#define   I915_ERROR_INSTRUCTION                        (1<<0)
#define INSTPM          0x020c0
#define   INSTPM_SELF_EN (1<<12) /* 915GM only */
#define   INSTPM_AGPBUSY_DIS (1<<11) /* gen3: when disabled, pending interrupts
                                        will not assert AGPBUSY# and will only
                                        be delivered when out of C3. */
#define   INSTPM_FORCE_ORDERING                         (1<<7) /* GEN6+ */
#define ACTHD           0x020c8
#define FW_BLC          0x020d8
#define FW_BLC2         0x020dc
#define FW_BLC_SELF     0x020e0 /* 915+ only */
#define   FW_BLC_SELF_EN_MASK      (1<<31)
#define   FW_BLC_SELF_FIFO_MASK    (1<<16) /* 945 only */
#define   FW_BLC_SELF_EN           (1<<15) /* 945 only */
#define MM_BURST_LENGTH     0x00700000
#define MM_FIFO_WATERMARK   0x0001F000
#define LM_BURST_LENGTH     0x00000700
#define LM_FIFO_WATERMARK   0x0000001F
#define MI_ARB_STATE    0x020e4 /* 915+ only */
#define   MI_ARB_MASK_SHIFT       16    /* shift for enable bits */

/* Make render/texture TLB fetches lower priorty than associated data
 *   fetches. This is not turned on by default
 */
#define   MI_ARB_RENDER_TLB_LOW_PRIORITY        (1 << 15)

/* Isoch request wait on GTT enable (Display A/B/C streams).
 * Make isoch requests stall on the TLB update. May cause
 * display underruns (test mode only)
 */
#define   MI_ARB_ISOCH_WAIT_GTT                 (1 << 14)

/* Block grant count for isoch requests when block count is
 * set to a finite value.
 */
#define   MI_ARB_BLOCK_GRANT_MASK               (3 << 12)
#define   MI_ARB_BLOCK_GRANT_8                  (0 << 12)       /* for 3 display planes */
#define   MI_ARB_BLOCK_GRANT_4                  (1 << 12)       /* for 2 display planes */
#define   MI_ARB_BLOCK_GRANT_2                  (2 << 12)       /* for 1 display plane */
#define   MI_ARB_BLOCK_GRANT_0                  (3 << 12)       /* don't use */

/* Enable render writes to complete in C2/C3/C4 power states.
 * If this isn't enabled, render writes are prevented in low
 * power states. That seems bad to me.
 */
#define   MI_ARB_C3_LP_WRITE_ENABLE             (1 << 11)

/* This acknowledges an async flip immediately instead
 * of waiting for 2TLB fetches.
 */
#define   MI_ARB_ASYNC_FLIP_ACK_IMMEDIATE       (1 << 10)

/* Enables non-sequential data reads through arbiter
 */
#define   MI_ARB_DUAL_DATA_PHASE_DISABLE        (1 << 9)

/* Disable FSB snooping of cacheable write cycles from binner/render
 * command stream
 */
#define   MI_ARB_CACHE_SNOOP_DISABLE            (1 << 8)

/* Arbiter time slice for non-isoch streams */
#define   MI_ARB_TIME_SLICE_MASK                (7 << 5)
#define   MI_ARB_TIME_SLICE_1                   (0 << 5)
#define   MI_ARB_TIME_SLICE_2                   (1 << 5)
#define   MI_ARB_TIME_SLICE_4                   (2 << 5)
#define   MI_ARB_TIME_SLICE_6                   (3 << 5)
#define   MI_ARB_TIME_SLICE_8                   (4 << 5)
#define   MI_ARB_TIME_SLICE_10                  (5 << 5)
#define   MI_ARB_TIME_SLICE_14                  (6 << 5)
#define   MI_ARB_TIME_SLICE_16                  (7 << 5)

/* Low priority grace period page size */
#define   MI_ARB_LOW_PRIORITY_GRACE_4KB         (0 << 4)        /* default */
#define   MI_ARB_LOW_PRIORITY_GRACE_8KB         (1 << 4)

/* Disable display A/B trickle feed */
#define   MI_ARB_DISPLAY_TRICKLE_FEED_DISABLE   (1 << 2)

/* Set display plane priority */
#define   MI_ARB_DISPLAY_PRIORITY_A_B           (0 << 0)        /* display A > display B */
#define   MI_ARB_DISPLAY_PRIORITY_B_A           (1 << 0)        /* display B > display A */

#define CACHE_MODE_0    0x02120 /* 915+ only */
#define   CM0_MASK_SHIFT          16
#define   CM0_IZ_OPT_DISABLE      (1<<6)
#define   CM0_ZR_OPT_DISABLE      (1<<5)
#define   CM0_STC_EVICT_DISABLE_LRA_SNB (1<<5)
#define   CM0_DEPTH_EVICT_DISABLE (1<<4)
#define   CM0_COLOR_EVICT_DISABLE (1<<3)
#define   CM0_DEPTH_WRITE_DISABLE (1<<1)
#define   CM0_RC_OP_FLUSH_DISABLE (1<<0)
#define BB_ADDR         0x02140 /* 8 bytes */
#define GFX_FLSH_CNTL   0x02170 /* 915+ only */
#define ECOSKPD         0x021d0
#define   ECO_GATING_CX_ONLY    (1<<3)
#define   ECO_FLIP_DONE         (1<<0)

/* GEN6 interrupt control */
#define GEN6_RENDER_HWSTAM      0x2098
#define GEN6_RENDER_IMR         0x20a8
#define   GEN6_RENDER_CONTEXT_SWITCH_INTERRUPT          (1 << 8)
#define   GEN6_RENDER_PPGTT_PAGE_FAULT                  (1 << 7)
#define   GEN6_RENDER_TIMEOUT_COUNTER_EXPIRED           (1 << 6)
#define   GEN6_RENDER_L3_PARITY_ERROR                   (1 << 5)
#define   GEN6_RENDER_PIPE_CONTROL_NOTIFY_INTERRUPT     (1 << 4)
#define   GEN6_RENDER_COMMAND_PARSER_MASTER_ERROR       (1 << 3)
#define   GEN6_RENDER_SYNC_STATUS                       (1 << 2)
#define   GEN6_RENDER_DEBUG_INTERRUPT                   (1 << 1)
#define   GEN6_RENDER_USER_INTERRUPT                    (1 << 0)

#define GEN6_BLITTER_HWSTAM     0x22098
#define GEN6_BLITTER_IMR        0x220a8
#define   GEN6_BLITTER_MI_FLUSH_DW_NOTIFY_INTERRUPT     (1 << 26)
#define   GEN6_BLITTER_COMMAND_PARSER_MASTER_ERROR      (1 << 25)
#define   GEN6_BLITTER_SYNC_STATUS                      (1 << 24)
#define   GEN6_BLITTER_USER_INTERRUPT                   (1 << 22)

#define GEN6_BLITTER_ECOSKPD    0x221d0
#define   GEN6_BLITTER_LOCK_SHIFT                       16
#define   GEN6_BLITTER_FBC_NOTIFY                       (1<<3)

#define GEN6_BSD_SLEEP_PSMI_CONTROL     0x12050
#define   GEN6_BSD_SLEEP_PSMI_CONTROL_RC_ILDL_MESSAGE_MODIFY_MASK       (1 << 16)
#define   GEN6_BSD_SLEEP_PSMI_CONTROL_RC_ILDL_MESSAGE_DISABLE           (1 << 0)
#define   GEN6_BSD_SLEEP_PSMI_CONTROL_RC_ILDL_MESSAGE_ENABLE            0
#define   GEN6_BSD_SLEEP_PSMI_CONTROL_IDLE_INDICATOR                    (1 << 3)

#define GEN6_BSD_HWSTAM                 0x12098
#define GEN6_BSD_IMR                    0x120a8
#define   GEN6_BSD_USER_INTERRUPT       (1 << 12)

#define GEN6_BSD_RNCID                  0x12198

/*
 * Framebuffer compression (915+ only)
 */

#define FBC_CFB_BASE            0x03200 /* 4k page aligned */
#define FBC_LL_BASE             0x03204 /* 4k page aligned */
#define FBC_CONTROL             0x03208
#define   FBC_CTL_EN            (1<<31)
#define   FBC_CTL_PERIODIC      (1<<30)
#define   FBC_CTL_INTERVAL_SHIFT (16)
#define   FBC_CTL_UNCOMPRESSIBLE (1<<14)
#define   FBC_CTL_C3_IDLE       (1<<13)
#define   FBC_CTL_STRIDE_SHIFT  (5)
#define   FBC_CTL_FENCENO       (1<<0)
#define FBC_COMMAND             0x0320c
#define   FBC_CMD_COMPRESS      (1<<0)
#define FBC_STATUS              0x03210
#define   FBC_STAT_COMPRESSING  (1<<31)
#define   FBC_STAT_COMPRESSED   (1<<30)
#define   FBC_STAT_MODIFIED     (1<<29)
#define   FBC_STAT_CURRENT_LINE (1<<0)
#define FBC_CONTROL2            0x03214
#define   FBC_CTL_FENCE_DBL     (0<<4)
#define   FBC_CTL_IDLE_IMM      (0<<2)
#define   FBC_CTL_IDLE_FULL     (1<<2)
#define   FBC_CTL_IDLE_LINE     (2<<2)
#define   FBC_CTL_IDLE_DEBUG    (3<<2)
#define   FBC_CTL_CPU_FENCE     (1<<1)
#define   FBC_CTL_PLANEA        (0<<0)
#define   FBC_CTL_PLANEB        (1<<0)
#define FBC_FENCE_OFF           0x0321b
#define FBC_TAG                 0x03300

#define FBC_LL_SIZE             (1536)

/* Framebuffer compression for GM45+ */
#define DPFC_CB_BASE            0x3200
#define DPFC_CONTROL            0x3208
#define   DPFC_CTL_EN           (1<<31)
#define   DPFC_CTL_PLANEA       (0<<30)
#define   DPFC_CTL_PLANEB       (1<<30)
#define   DPFC_CTL_FENCE_EN     (1<<29)
#define   DPFC_CTL_PERSISTENT_MODE      (1<<25)
#define   DPFC_SR_EN            (1<<10)
#define   DPFC_CTL_LIMIT_1X     (0<<6)
#define   DPFC_CTL_LIMIT_2X     (1<<6)
#define   DPFC_CTL_LIMIT_4X     (2<<6)
#define DPFC_RECOMP_CTL         0x320c
#define   DPFC_RECOMP_STALL_EN  (1<<27)
#define   DPFC_RECOMP_STALL_WM_SHIFT (16)
#define   DPFC_RECOMP_STALL_WM_MASK (0x07ff0000)
#define   DPFC_RECOMP_TIMER_COUNT_SHIFT (0)
#define   DPFC_RECOMP_TIMER_COUNT_MASK (0x0000003f)
#define DPFC_STATUS             0x3210
#define   DPFC_INVAL_SEG_SHIFT  (16)
#define   DPFC_INVAL_SEG_MASK   (0x07ff0000)
#define   DPFC_COMP_SEG_SHIFT   (0)
#define   DPFC_COMP_SEG_MASK    (0x000003ff)
#define DPFC_STATUS2            0x3214
#define DPFC_FENCE_YOFF         0x3218
#define DPFC_CHICKEN            0x3224
#define   DPFC_HT_MODIFY        (1<<31)

/* Framebuffer compression for Ironlake */
#define ILK_DPFC_CB_BASE        0x43200
#define ILK_DPFC_CONTROL        0x43208
/* The bit 28-8 is reserved */
#define   DPFC_RESERVED         (0x1FFFFF00)
#define ILK_DPFC_RECOMP_CTL     0x4320c
#define ILK_DPFC_STATUS         0x43210
#define ILK_DPFC_FENCE_YOFF     0x43218
#define ILK_DPFC_CHICKEN        0x43224
#define ILK_FBC_RT_BASE         0x2128
#define   ILK_FBC_RT_VALID      (1<<0)

#define ILK_DISPLAY_CHICKEN1    0x42000
#define   ILK_FBCQ_DIS          (1<<22)
#define   ILK_PABSTRETCH_DIS    (1<<21)


/*
 * Framebuffer compression for Sandybridge
 *
 * The following two registers are of type GTTMMADR
 */
#define SNB_DPFC_CTL_SA         0x100100
#define   SNB_CPU_FENCE_ENABLE  (1<<29)
#define DPFC_CPU_FENCE_OFFSET   0x100104


/*
 * GPIO regs
 */
#define GPIOA                   0x5010
#define GPIOB                   0x5014
#define GPIOC                   0x5018
#define GPIOD                   0x501c
#define GPIOE                   0x5020
#define GPIOF                   0x5024
#define GPIOG                   0x5028
#define GPIOH                   0x502c
# define GPIO_CLOCK_DIR_MASK            (1 << 0)
# define GPIO_CLOCK_DIR_IN              (0 << 1)
# define GPIO_CLOCK_DIR_OUT             (1 << 1)
# define GPIO_CLOCK_VAL_MASK            (1 << 2)
# define GPIO_CLOCK_VAL_OUT             (1 << 3)
# define GPIO_CLOCK_VAL_IN              (1 << 4)
# define GPIO_CLOCK_PULLUP_DISABLE      (1 << 5)
# define GPIO_DATA_DIR_MASK             (1 << 8)
# define GPIO_DATA_DIR_IN               (0 << 9)
# define GPIO_DATA_DIR_OUT              (1 << 9)
# define GPIO_DATA_VAL_MASK             (1 << 10)
# define GPIO_DATA_VAL_OUT              (1 << 11)
# define GPIO_DATA_VAL_IN               (1 << 12)
# define GPIO_DATA_PULLUP_DISABLE       (1 << 13)

#define GMBUS0                  0x5100 /* clock/port select */
#define   GMBUS_RATE_100KHZ     (0<<8)
#define   GMBUS_RATE_50KHZ      (1<<8)
#define   GMBUS_RATE_400KHZ     (2<<8) /* reserved on Pineview */
#define   GMBUS_RATE_1MHZ       (3<<8) /* reserved on Pineview */
#define   GMBUS_HOLD_EXT        (1<<7) /* 300ns hold time, rsvd on Pineview */
#define   GMBUS_PORT_DISABLED   0
#define   GMBUS_PORT_SSC        1
#define   GMBUS_PORT_VGADDC     2
#define   GMBUS_PORT_PANEL      3
#define   GMBUS_PORT_DPC        4 /* HDMIC */
#define   GMBUS_PORT_DPB        5 /* SDVO, HDMIB */
                                  /* 6 reserved */
#define   GMBUS_PORT_DPD        7 /* HDMID */
#define   GMBUS_NUM_PORTS       8
#define GMBUS1                  0x5104 /* command/status */
#define   GMBUS_SW_CLR_INT      (1<<31)
#define   GMBUS_SW_RDY          (1<<30)
#define   GMBUS_ENT             (1<<29) /* enable timeout */
#define   GMBUS_CYCLE_NONE      (0<<25)
#define   GMBUS_CYCLE_WAIT      (1<<25)
#define   GMBUS_CYCLE_INDEX     (2<<25)
#define   GMBUS_CYCLE_STOP      (4<<25)
#define   GMBUS_BYTE_COUNT_SHIFT 16
#define   GMBUS_SLAVE_INDEX_SHIFT 8
#define   GMBUS_SLAVE_ADDR_SHIFT 1
#define   GMBUS_SLAVE_READ      (1<<0)
#define   GMBUS_SLAVE_WRITE     (0<<0)
#define GMBUS2                  0x5108 /* status */
#define   GMBUS_INUSE           (1<<15)
#define   GMBUS_HW_WAIT_PHASE   (1<<14)
#define   GMBUS_STALL_TIMEOUT   (1<<13)
#define   GMBUS_INT             (1<<12)
#define   GMBUS_HW_RDY          (1<<11)
#define   GMBUS_SATOER          (1<<10)
#define   GMBUS_ACTIVE          (1<<9)
#define GMBUS3                  0x510c /* data buffer bytes 3-0 */
#define GMBUS4                  0x5110 /* interrupt mask (Pineview+) */
#define   GMBUS_SLAVE_TIMEOUT_EN (1<<4)
#define   GMBUS_NAK_EN          (1<<3)
#define   GMBUS_IDLE_EN         (1<<2)
#define   GMBUS_HW_WAIT_EN      (1<<1)
#define   GMBUS_HW_RDY_EN       (1<<0)
#define GMBUS5                  0x5120 /* byte index */
#define   GMBUS_2BYTE_INDEX_EN  (1<<31)

/*
 * Clock control & power management
 */

#define VGA0    0x6000
#define VGA1    0x6004
#define VGA_PD  0x6010
#define   VGA0_PD_P2_DIV_4      (1 << 7)
#define   VGA0_PD_P1_DIV_2      (1 << 5)
#define   VGA0_PD_P1_SHIFT      0
#define   VGA0_PD_P1_MASK       (0x1f << 0)
#define   VGA1_PD_P2_DIV_4      (1 << 15)
#define   VGA1_PD_P1_DIV_2      (1 << 13)
#define   VGA1_PD_P1_SHIFT      8
#define   VGA1_PD_P1_MASK       (0x1f << 8)
#define _DPLL_A 0x06014
#define _DPLL_B 0x06018
#define DPLL(pipe) _PIPE(pipe, _DPLL_A, _DPLL_B)
#define   DPLL_VCO_ENABLE               (1 << 31)
#define   DPLL_DVO_HIGH_SPEED           (1 << 30)
#define   DPLL_SYNCLOCK_ENABLE          (1 << 29)
#define   DPLL_VGA_MODE_DIS             (1 << 28)
#define   DPLLB_MODE_DAC_SERIAL         (1 << 26) /* i915 */
#define   DPLLB_MODE_LVDS               (2 << 26) /* i915 */
#define   DPLL_MODE_MASK                (3 << 26)
#define   DPLL_DAC_SERIAL_P2_CLOCK_DIV_10 (0 << 24) /* i915 */
#define   DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 (1 << 24) /* i915 */
#define   DPLLB_LVDS_P2_CLOCK_DIV_14    (0 << 24) /* i915 */
#define   DPLLB_LVDS_P2_CLOCK_DIV_7     (1 << 24) /* i915 */
#define   DPLL_P2_CLOCK_DIV_MASK        0x03000000 /* i915 */
#define   DPLL_FPA01_P1_POST_DIV_MASK   0x00ff0000 /* i915 */
#define   DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW  0x00ff8000 /* Pineview */

#define SRX_INDEX               0x3c4
#define SRX_DATA                0x3c5
#define SR01                    1
#define SR01_SCREEN_OFF         (1<<5)

#define PPCR                    0x61204
#define PPCR_ON                 (1<<0)

#define DVOB                    0x61140
#define DVOB_ON                 (1<<31)
#define DVOC                    0x61160
#define DVOC_ON                 (1<<31)
#define LVDS                    0x61180
#define LVDS_ON                 (1<<31)

/* Scratch pad debug 0 reg:
 */
#define   DPLL_FPA01_P1_POST_DIV_MASK_I830      0x001f0000
/*
 * The i830 generation, in LVDS mode, defines P1 as the bit number set within
 * this field (only one bit may be set).
 */
#define   DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS 0x003f0000
#define   DPLL_FPA01_P1_POST_DIV_SHIFT  16
#define   DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW 15
/* i830, required in DVO non-gang */
#define   PLL_P2_DIVIDE_BY_4            (1 << 23)
#define   PLL_P1_DIVIDE_BY_TWO          (1 << 21) /* i830 */
#define   PLL_REF_INPUT_DREFCLK         (0 << 13)
#define   PLL_REF_INPUT_TVCLKINA        (1 << 13) /* i830 */
#define   PLL_REF_INPUT_TVCLKINBC       (2 << 13) /* SDVO TVCLKIN */
#define   PLLB_REF_INPUT_SPREADSPECTRUMIN (3 << 13)
#define   PLL_REF_INPUT_MASK            (3 << 13)
#define   PLL_LOAD_PULSE_PHASE_SHIFT            9
/* Ironlake */
# define PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT     9
# define PLL_REF_SDVO_HDMI_MULTIPLIER_MASK      (7 << 9)
# define PLL_REF_SDVO_HDMI_MULTIPLIER(x)        (((x)-1) << 9)
# define DPLL_FPA1_P1_POST_DIV_SHIFT            0
# define DPLL_FPA1_P1_POST_DIV_MASK             0xff

/*
 * Parallel to Serial Load Pulse phase selection.
 * Selects the phase for the 10X DPLL clock for the PCIe
 * digital display port. The range is 4 to 13; 10 or more
 * is just a flip delay. The default is 6
 */
#define   PLL_LOAD_PULSE_PHASE_MASK             (0xf << PLL_LOAD_PULSE_PHASE_SHIFT)
#define   DISPLAY_RATE_SELECT_FPA1              (1 << 8)
/*
 * SDVO multiplier for 945G/GM. Not used on 965.
 */
#define   SDVO_MULTIPLIER_MASK                  0x000000ff
#define   SDVO_MULTIPLIER_SHIFT_HIRES           4
#define   SDVO_MULTIPLIER_SHIFT_VGA             0
#define _DPLL_A_MD 0x0601c /* 965+ only */
/*
 * UDI pixel divider, controlling how many pixels are stuffed into a packet.
 *
 * Value is pixels minus 1.  Must be set to 1 pixel for SDVO.
 */
#define   DPLL_MD_UDI_DIVIDER_MASK              0x3f000000
#define   DPLL_MD_UDI_DIVIDER_SHIFT             24
/* UDI pixel divider for VGA, same as DPLL_MD_UDI_DIVIDER_MASK. */
#define   DPLL_MD_VGA_UDI_DIVIDER_MASK          0x003f0000
#define   DPLL_MD_VGA_UDI_DIVIDER_SHIFT         16
/*
 * SDVO/UDI pixel multiplier.
 *
 * SDVO requires that the bus clock rate be between 1 and 2 Ghz, and the bus
 * clock rate is 10 times the DPLL clock.  At low resolution/refresh rate
 * modes, the bus rate would be below the limits, so SDVO allows for stuffing
 * dummy bytes in the datastream at an increased clock rate, with both sides of
 * the link knowing how many bytes are fill.
 *
 * So, for a mode with a dotclock of 65Mhz, we would want to double the clock
 * rate to 130Mhz to get a bus rate of 1.30Ghz.  The DPLL clock rate would be
 * set to 130Mhz, and the SDVO multiplier set to 2x in this register and
 * through an SDVO command.
 *
 * This register field has values of multiplication factor minus 1, with
 * a maximum multiplier of 5 for SDVO.
 */
#define   DPLL_MD_UDI_MULTIPLIER_MASK           0x00003f00
#define   DPLL_MD_UDI_MULTIPLIER_SHIFT          8
/*
 * SDVO/UDI pixel multiplier for VGA, same as DPLL_MD_UDI_MULTIPLIER_MASK.
 * This best be set to the default value (3) or the CRT won't work. No,
 * I don't entirely understand what this does...
 */
#define   DPLL_MD_VGA_UDI_MULTIPLIER_MASK       0x0000003f
#define   DPLL_MD_VGA_UDI_MULTIPLIER_SHIFT      0
#define _DPLL_B_MD 0x06020 /* 965+ only */
#define DPLL_MD(pipe) _PIPE(pipe, _DPLL_A_MD, _DPLL_B_MD)
#define _FPA0   0x06040
#define _FPA1   0x06044
#define _FPB0   0x06048
#define _FPB1   0x0604c
#define FP0(pipe) _PIPE(pipe, _FPA0, _FPB0)
#define FP1(pipe) _PIPE(pipe, _FPA1, _FPB1)
#define   FP_N_DIV_MASK         0x003f0000
#define   FP_N_PINEVIEW_DIV_MASK        0x00ff0000
#define   FP_N_DIV_SHIFT                16
#define   FP_M1_DIV_MASK        0x00003f00
#define   FP_M1_DIV_SHIFT                8
#define   FP_M2_DIV_MASK        0x0000003f
#define   FP_M2_PINEVIEW_DIV_MASK       0x000000ff
#define   FP_M2_DIV_SHIFT                0
#define DPLL_TEST       0x606c
#define   DPLLB_TEST_SDVO_DIV_1         (0 << 22)
#define   DPLLB_TEST_SDVO_DIV_2         (1 << 22)
#define   DPLLB_TEST_SDVO_DIV_4         (2 << 22)
#define   DPLLB_TEST_SDVO_DIV_MASK      (3 << 22)
#define   DPLLB_TEST_N_BYPASS           (1 << 19)
#define   DPLLB_TEST_M_BYPASS           (1 << 18)
#define   DPLLB_INPUT_BUFFER_ENABLE     (1 << 16)
#define   DPLLA_TEST_N_BYPASS           (1 << 3)
#define   DPLLA_TEST_M_BYPASS           (1 << 2)
#define   DPLLA_INPUT_BUFFER_ENABLE     (1 << 0)
#define D_STATE         0x6104
#define  DSTATE_GFX_RESET_I830                  (1<<6)
#define  DSTATE_PLL_D3_OFF                      (1<<3)
#define  DSTATE_GFX_CLOCK_GATING                (1<<1)
#define  DSTATE_DOT_CLOCK_GATING                (1<<0)
#define DSPCLK_GATE_D           0x6200
# define DPUNIT_B_CLOCK_GATE_DISABLE            (1 << 30) /* 965 */
# define VSUNIT_CLOCK_GATE_DISABLE              (1 << 29) /* 965 */
# define VRHUNIT_CLOCK_GATE_DISABLE             (1 << 28) /* 965 */
# define VRDUNIT_CLOCK_GATE_DISABLE             (1 << 27) /* 965 */
# define AUDUNIT_CLOCK_GATE_DISABLE             (1 << 26) /* 965 */
# define DPUNIT_A_CLOCK_GATE_DISABLE            (1 << 25) /* 965 */
# define DPCUNIT_CLOCK_GATE_DISABLE             (1 << 24) /* 965 */
# define TVRUNIT_CLOCK_GATE_DISABLE             (1 << 23) /* 915-945 */
# define TVCUNIT_CLOCK_GATE_DISABLE             (1 << 22) /* 915-945 */
# define TVFUNIT_CLOCK_GATE_DISABLE             (1 << 21) /* 915-945 */
# define TVEUNIT_CLOCK_GATE_DISABLE             (1 << 20) /* 915-945 */
# define DVSUNIT_CLOCK_GATE_DISABLE             (1 << 19) /* 915-945 */
# define DSSUNIT_CLOCK_GATE_DISABLE             (1 << 18) /* 915-945 */
# define DDBUNIT_CLOCK_GATE_DISABLE             (1 << 17) /* 915-945 */
# define DPRUNIT_CLOCK_GATE_DISABLE             (1 << 16) /* 915-945 */
# define DPFUNIT_CLOCK_GATE_DISABLE             (1 << 15) /* 915-945 */
# define DPBMUNIT_CLOCK_GATE_DISABLE            (1 << 14) /* 915-945 */
# define DPLSUNIT_CLOCK_GATE_DISABLE            (1 << 13) /* 915-945 */
# define DPLUNIT_CLOCK_GATE_DISABLE             (1 << 12) /* 915-945 */
# define DPOUNIT_CLOCK_GATE_DISABLE             (1 << 11)
# define DPBUNIT_CLOCK_GATE_DISABLE             (1 << 10)
# define DCUNIT_CLOCK_GATE_DISABLE              (1 << 9)
# define DPUNIT_CLOCK_GATE_DISABLE              (1 << 8)
# define VRUNIT_CLOCK_GATE_DISABLE              (1 << 7) /* 915+: reserved */
# define OVHUNIT_CLOCK_GATE_DISABLE             (1 << 6) /* 830-865 */
# define DPIOUNIT_CLOCK_GATE_DISABLE            (1 << 6) /* 915-945 */
# define OVFUNIT_CLOCK_GATE_DISABLE             (1 << 5)
# define OVBUNIT_CLOCK_GATE_DISABLE             (1 << 4)
/**
 * This bit must be set on the 830 to prevent hangs when turning off the
 * overlay scaler.
 */
# define OVRUNIT_CLOCK_GATE_DISABLE             (1 << 3)
# define OVCUNIT_CLOCK_GATE_DISABLE             (1 << 2)
# define OVUUNIT_CLOCK_GATE_DISABLE             (1 << 1)
# define ZVUNIT_CLOCK_GATE_DISABLE              (1 << 0) /* 830 */
# define OVLUNIT_CLOCK_GATE_DISABLE             (1 << 0) /* 845,865 */

#define RENCLK_GATE_D1          0x6204
# define BLITTER_CLOCK_GATE_DISABLE             (1 << 13) /* 945GM only */
# define MPEG_CLOCK_GATE_DISABLE                (1 << 12) /* 945GM only */
# define PC_FE_CLOCK_GATE_DISABLE               (1 << 11)
# define PC_BE_CLOCK_GATE_DISABLE               (1 << 10)
# define WINDOWER_CLOCK_GATE_DISABLE            (1 << 9)
# define INTERPOLATOR_CLOCK_GATE_DISABLE        (1 << 8)
# define COLOR_CALCULATOR_CLOCK_GATE_DISABLE    (1 << 7)
# define MOTION_COMP_CLOCK_GATE_DISABLE         (1 << 6)
# define MAG_CLOCK_GATE_DISABLE                 (1 << 5)
/** This bit must be unset on 855,865 */
# define MECI_CLOCK_GATE_DISABLE                (1 << 4)
# define DCMP_CLOCK_GATE_DISABLE                (1 << 3)
# define MEC_CLOCK_GATE_DISABLE                 (1 << 2)
# define MECO_CLOCK_GATE_DISABLE                (1 << 1)
/** This bit must be set on 855,865. */
# define SV_CLOCK_GATE_DISABLE                  (1 << 0)
# define I915_MPEG_CLOCK_GATE_DISABLE           (1 << 16)
# define I915_VLD_IP_PR_CLOCK_GATE_DISABLE      (1 << 15)
# define I915_MOTION_COMP_CLOCK_GATE_DISABLE    (1 << 14)
# define I915_BD_BF_CLOCK_GATE_DISABLE          (1 << 13)
# define I915_SF_SE_CLOCK_GATE_DISABLE          (1 << 12)
# define I915_WM_CLOCK_GATE_DISABLE             (1 << 11)
# define I915_IZ_CLOCK_GATE_DISABLE             (1 << 10)
# define I915_PI_CLOCK_GATE_DISABLE             (1 << 9)
# define I915_DI_CLOCK_GATE_DISABLE             (1 << 8)
# define I915_SH_SV_CLOCK_GATE_DISABLE          (1 << 7)
# define I915_PL_DG_QC_FT_CLOCK_GATE_DISABLE    (1 << 6)
# define I915_SC_CLOCK_GATE_DISABLE             (1 << 5)
# define I915_FL_CLOCK_GATE_DISABLE             (1 << 4)
# define I915_DM_CLOCK_GATE_DISABLE             (1 << 3)
# define I915_PS_CLOCK_GATE_DISABLE             (1 << 2)
# define I915_CC_CLOCK_GATE_DISABLE             (1 << 1)
# define I915_BY_CLOCK_GATE_DISABLE             (1 << 0)

# define I965_RCZ_CLOCK_GATE_DISABLE            (1 << 30)
/** This bit must always be set on 965G/965GM */
# define I965_RCC_CLOCK_GATE_DISABLE            (1 << 29)
# define I965_RCPB_CLOCK_GATE_DISABLE           (1 << 28)
# define I965_DAP_CLOCK_GATE_DISABLE            (1 << 27)
# define I965_ROC_CLOCK_GATE_DISABLE            (1 << 26)
# define I965_GW_CLOCK_GATE_DISABLE             (1 << 25)
# define I965_TD_CLOCK_GATE_DISABLE             (1 << 24)
/** This bit must always be set on 965G */
# define I965_ISC_CLOCK_GATE_DISABLE            (1 << 23)
# define I965_IC_CLOCK_GATE_DISABLE             (1 << 22)
# define I965_EU_CLOCK_GATE_DISABLE             (1 << 21)
# define I965_IF_CLOCK_GATE_DISABLE             (1 << 20)
# define I965_TC_CLOCK_GATE_DISABLE             (1 << 19)
# define I965_SO_CLOCK_GATE_DISABLE             (1 << 17)
# define I965_FBC_CLOCK_GATE_DISABLE            (1 << 16)
# define I965_MARI_CLOCK_GATE_DISABLE           (1 << 15)
# define I965_MASF_CLOCK_GATE_DISABLE           (1 << 14)
# define I965_MAWB_CLOCK_GATE_DISABLE           (1 << 13)
# define I965_EM_CLOCK_GATE_DISABLE             (1 << 12)
# define I965_UC_CLOCK_GATE_DISABLE             (1 << 11)
# define I965_SI_CLOCK_GATE_DISABLE             (1 << 6)
# define I965_MT_CLOCK_GATE_DISABLE             (1 << 5)
# define I965_PL_CLOCK_GATE_DISABLE             (1 << 4)
# define I965_DG_CLOCK_GATE_DISABLE             (1 << 3)
# define I965_QC_CLOCK_GATE_DISABLE             (1 << 2)
# define I965_FT_CLOCK_GATE_DISABLE             (1 << 1)
# define I965_DM_CLOCK_GATE_DISABLE             (1 << 0)

#define RENCLK_GATE_D2          0x6208
#define VF_UNIT_CLOCK_GATE_DISABLE              (1 << 9)
#define GS_UNIT_CLOCK_GATE_DISABLE              (1 << 7)
#define CL_UNIT_CLOCK_GATE_DISABLE              (1 << 6)
#define RAMCLK_GATE_D           0x6210          /* CRL only */
#define DEUC                    0x6214          /* CRL only */

/*
 * Palette regs
 */

#define _PALETTE_A              0x0a000
#define _PALETTE_B              0x0a800
#define PALETTE(pipe) _PIPE(pipe, _PALETTE_A, _PALETTE_B)

/* MCH MMIO space */

/*
 * MCHBAR mirror.
 *
 * This mirrors the MCHBAR MMIO space whose location is determined by
 * device 0 function 0's pci config register 0x44 or 0x48 and matches it in
 * every way.  It is not accessible from the CP register read instructions.
 *
 */
#define MCHBAR_MIRROR_BASE      0x10000

#define MCHBAR_MIRROR_BASE_SNB  0x140000

/** 915-945 and GM965 MCH register controlling DRAM channel access */
#define DCC                     0x10200
#define DCC_ADDRESSING_MODE_SINGLE_CHANNEL              (0 << 0)
#define DCC_ADDRESSING_MODE_DUAL_CHANNEL_ASYMMETRIC     (1 << 0)
#define DCC_ADDRESSING_MODE_DUAL_CHANNEL_INTERLEAVED    (2 << 0)
#define DCC_ADDRESSING_MODE_MASK                        (3 << 0)
#define DCC_CHANNEL_XOR_DISABLE                         (1 << 10)
#define DCC_CHANNEL_XOR_BIT_17                          (1 << 9)

/** Pineview MCH register contains DDR3 setting */
#define CSHRDDR3CTL            0x101a8
#define CSHRDDR3CTL_DDR3       (1 << 2)

/** 965 MCH register controlling DRAM channel configuration */
#define C0DRB3                  0x10206
#define C1DRB3                  0x10606

/* Clocking configuration register */
#define CLKCFG                  0x10c00
#define CLKCFG_FSB_400                                  (5 << 0)        /* hrawclk 100 */
#define CLKCFG_FSB_533                                  (1 << 0)        /* hrawclk 133 */
#define CLKCFG_FSB_667                                  (3 << 0)        /* hrawclk 166 */
#define CLKCFG_FSB_800                                  (2 << 0)        /* hrawclk 200 */
#define CLKCFG_FSB_1067                                 (6 << 0)        /* hrawclk 266 */
#define CLKCFG_FSB_1333                                 (7 << 0)        /* hrawclk 333 */
/* Note, below two are guess */
#define CLKCFG_FSB_1600                                 (4 << 0)        /* hrawclk 400 */
#define CLKCFG_FSB_1600_ALT                             (0 << 0)        /* hrawclk 400 */
#define CLKCFG_FSB_MASK                                 (7 << 0)
#define CLKCFG_MEM_533                                  (1 << 4)
#define CLKCFG_MEM_667                                  (2 << 4)
#define CLKCFG_MEM_800                                  (3 << 4)
#define CLKCFG_MEM_MASK                                 (7 << 4)

#define TSC1                    0x11001
#define   TSE                   (1<<0)
#define TR1                     0x11006
#define TSFS                    0x11020
#define   TSFS_SLOPE_MASK       0x0000ff00
#define   TSFS_SLOPE_SHIFT      8
#define   TSFS_INTR_MASK        0x000000ff

#define CRSTANDVID              0x11100
#define PXVFREQ_BASE            0x11110 /* P[0-15]VIDFREQ (0x1114c) (Ironlake) */
#define   PXVFREQ_PX_MASK       0x7f000000
#define   PXVFREQ_PX_SHIFT      24
#define VIDFREQ_BASE            0x11110
#define VIDFREQ1                0x11110 /* VIDFREQ1-4 (0x1111c) (Cantiga) */
#define VIDFREQ2                0x11114
#define VIDFREQ3                0x11118
#define VIDFREQ4                0x1111c
#define   VIDFREQ_P0_MASK       0x1f000000
#define   VIDFREQ_P0_SHIFT      24
#define   VIDFREQ_P0_CSCLK_MASK 0x00f00000
#define   VIDFREQ_P0_CSCLK_SHIFT 20
#define   VIDFREQ_P0_CRCLK_MASK 0x000f0000
#define   VIDFREQ_P0_CRCLK_SHIFT 16
#define   VIDFREQ_P1_MASK       0x00001f00
#define   VIDFREQ_P1_SHIFT      8
#define   VIDFREQ_P1_CSCLK_MASK 0x000000f0
#define   VIDFREQ_P1_CSCLK_SHIFT 4
#define   VIDFREQ_P1_CRCLK_MASK 0x0000000f
#define INTTOEXT_BASE_ILK       0x11300
#define INTTOEXT_BASE           0x11120 /* INTTOEXT1-8 (0x1113c) */
#define   INTTOEXT_MAP3_SHIFT   24
#define   INTTOEXT_MAP3_MASK    (0x1f << INTTOEXT_MAP3_SHIFT)
#define   INTTOEXT_MAP2_SHIFT   16
#define   INTTOEXT_MAP2_MASK    (0x1f << INTTOEXT_MAP2_SHIFT)
#define   INTTOEXT_MAP1_SHIFT   8
#define   INTTOEXT_MAP1_MASK    (0x1f << INTTOEXT_MAP1_SHIFT)
#define   INTTOEXT_MAP0_SHIFT   0
#define   INTTOEXT_MAP0_MASK    (0x1f << INTTOEXT_MAP0_SHIFT)
#define MEMSWCTL                0x11170 /* Ironlake only */
#define   MEMCTL_CMD_MASK       0xe000
#define   MEMCTL_CMD_SHIFT      13
#define   MEMCTL_CMD_RCLK_OFF   0
#define   MEMCTL_CMD_RCLK_ON    1
#define   MEMCTL_CMD_CHFREQ     2
#define   MEMCTL_CMD_CHVID      3
#define   MEMCTL_CMD_VMMOFF     4
#define   MEMCTL_CMD_VMMON      5
#define   MEMCTL_CMD_STS        (1<<12) /* write 1 triggers command, clears
                                           when command complete */
#define   MEMCTL_FREQ_MASK      0x0f00 /* jitter, from 0-15 */
#define   MEMCTL_FREQ_SHIFT     8
#define   MEMCTL_SFCAVM         (1<<7)
#define   MEMCTL_TGT_VID_MASK   0x007f
#define MEMIHYST                0x1117c
#define MEMINTREN               0x11180 /* 16 bits */
#define   MEMINT_RSEXIT_EN      (1<<8)
#define   MEMINT_CX_SUPR_EN     (1<<7)
#define   MEMINT_CONT_BUSY_EN   (1<<6)
#define   MEMINT_AVG_BUSY_EN    (1<<5)
#define   MEMINT_EVAL_CHG_EN    (1<<4)
#define   MEMINT_MON_IDLE_EN    (1<<3)
#define   MEMINT_UP_EVAL_EN     (1<<2)
#define   MEMINT_DOWN_EVAL_EN   (1<<1)
#define   MEMINT_SW_CMD_EN      (1<<0)
#define MEMINTRSTR              0x11182 /* 16 bits */
#define   MEM_RSEXIT_MASK       0xc000
#define   MEM_RSEXIT_SHIFT      14
#define   MEM_CONT_BUSY_MASK    0x3000
#define   MEM_CONT_BUSY_SHIFT   12
#define   MEM_AVG_BUSY_MASK     0x0c00
#define   MEM_AVG_BUSY_SHIFT    10
#define   MEM_EVAL_CHG_MASK     0x0300
#define   MEM_EVAL_BUSY_SHIFT   8
#define   MEM_MON_IDLE_MASK     0x00c0
#define   MEM_MON_IDLE_SHIFT    6
#define   MEM_UP_EVAL_MASK      0x0030
#define   MEM_UP_EVAL_SHIFT     4
#define   MEM_DOWN_EVAL_MASK    0x000c
#define   MEM_DOWN_EVAL_SHIFT   2
#define   MEM_SW_CMD_MASK       0x0003
#define   MEM_INT_STEER_GFX     0
#define   MEM_INT_STEER_CMR     1
#define   MEM_INT_STEER_SMI     2
#define   MEM_INT_STEER_SCI     3
#define MEMINTRSTS              0x11184
#define   MEMINT_RSEXIT         (1<<7)
#define   MEMINT_CONT_BUSY      (1<<6)
#define   MEMINT_AVG_BUSY       (1<<5)
#define   MEMINT_EVAL_CHG       (1<<4)
#define   MEMINT_MON_IDLE       (1<<3)
#define   MEMINT_UP_EVAL        (1<<2)
#define   MEMINT_DOWN_EVAL      (1<<1)
#define   MEMINT_SW_CMD         (1<<0)
#define MEMMODECTL              0x11190
#define   MEMMODE_BOOST_EN      (1<<31)
#define   MEMMODE_BOOST_FREQ_MASK 0x0f000000 /* jitter for boost, 0-15 */
#define   MEMMODE_BOOST_FREQ_SHIFT 24
#define   MEMMODE_IDLE_MODE_MASK 0x00030000
#define   MEMMODE_IDLE_MODE_SHIFT 16
#define   MEMMODE_IDLE_MODE_EVAL 0
#define   MEMMODE_IDLE_MODE_CONT 1
#define   MEMMODE_HWIDLE_EN     (1<<15)
#define   MEMMODE_SWMODE_EN     (1<<14)
#define   MEMMODE_RCLK_GATE     (1<<13)
#define   MEMMODE_HW_UPDATE     (1<<12)
#define   MEMMODE_FSTART_MASK   0x00000f00 /* starting jitter, 0-15 */
#define   MEMMODE_FSTART_SHIFT  8
#define   MEMMODE_FMAX_MASK     0x000000f0 /* max jitter, 0-15 */
#define   MEMMODE_FMAX_SHIFT    4
#define   MEMMODE_FMIN_MASK     0x0000000f /* min jitter, 0-15 */
#define RCBMAXAVG               0x1119c
#define MEMSWCTL2               0x1119e /* Cantiga only */
#define   SWMEMCMD_RENDER_OFF   (0 << 13)
#define   SWMEMCMD_RENDER_ON    (1 << 13)
#define   SWMEMCMD_SWFREQ       (2 << 13)
#define   SWMEMCMD_TARVID       (3 << 13)
#define   SWMEMCMD_VRM_OFF      (4 << 13)
#define   SWMEMCMD_VRM_ON       (5 << 13)
#define   CMDSTS                (1<<12)
#define   SFCAVM                (1<<11)
#define   SWFREQ_MASK           0x0380 /* P0-7 */
#define   SWFREQ_SHIFT          7
#define   TARVID_MASK           0x001f
#define MEMSTAT_CTG             0x111a0
#define RCBMINAVG               0x111a0
#define RCUPEI                  0x111b0
#define RCDNEI                  0x111b4
#define RSTDBYCTL               0x111b8
#define   RS1EN                 (1<<31)
#define   RS2EN                 (1<<30)
#define   RS3EN                 (1<<29)
#define   D3RS3EN               (1<<28) /* Display D3 imlies RS3 */
#define   SWPROMORSX            (1<<27) /* RSx promotion timers ignored */
#define   RCWAKERW              (1<<26) /* Resetwarn from PCH causes wakeup */
#define   DPRSLPVREN            (1<<25) /* Fast voltage ramp enable */
#define   GFXTGHYST             (1<<24) /* Hysteresis to allow trunk gating */
#define   RCX_SW_EXIT           (1<<23) /* Leave RSx and prevent re-entry */
#define   RSX_STATUS_MASK       (7<<20)
#define   RSX_STATUS_ON         (0<<20)
#define   RSX_STATUS_RC1        (1<<20)
#define   RSX_STATUS_RC1E       (2<<20)
#define   RSX_STATUS_RS1        (3<<20)
#define   RSX_STATUS_RS2        (4<<20) /* aka rc6 */
#define   RSX_STATUS_RSVD       (5<<20) /* deep rc6 unsupported on ilk */
#define   RSX_STATUS_RS3        (6<<20) /* rs3 unsupported on ilk */
#define   RSX_STATUS_RSVD2      (7<<20)
#define   UWRCRSXE              (1<<19) /* wake counter limit prevents rsx */
#define   RSCRP                 (1<<18) /* rs requests control on rs1/2 reqs */
#define   JRSC                  (1<<17) /* rsx coupled to cpu c-state */
#define   RS2INC0               (1<<16) /* allow rs2 in cpu c0 */
#define   RS1CONTSAV_MASK       (3<<14)
#define   RS1CONTSAV_NO_RS1     (0<<14) /* rs1 doesn't save/restore context */
#define   RS1CONTSAV_RSVD       (1<<14)
#define   RS1CONTSAV_SAVE_RS1   (2<<14) /* rs1 saves context */
#define   RS1CONTSAV_FULL_RS1   (3<<14) /* rs1 saves and restores context */
#define   NORMSLEXLAT_MASK      (3<<12)
#define   SLOW_RS123            (0<<12)
#define   SLOW_RS23             (1<<12)
#define   SLOW_RS3              (2<<12)
#define   NORMAL_RS123          (3<<12)
#define   RCMODE_TIMEOUT        (1<<11) /* 0 is eval interval method */
#define   IMPROMOEN             (1<<10) /* promo is immediate or delayed until next idle interval (only for timeout method above) */
#define   RCENTSYNC             (1<<9) /* rs coupled to cpu c-state (3/6/7) */
#define   STATELOCK             (1<<7) /* locked to rs_cstate if 0 */
#define   RS_CSTATE_MASK        (3<<4)
#define   RS_CSTATE_C367_RS1    (0<<4)
#define   RS_CSTATE_C36_RS1_C7_RS2 (1<<4)
#define   RS_CSTATE_RSVD        (2<<4)
#define   RS_CSTATE_C367_RS2    (3<<4)
#define   REDSAVES              (1<<3) /* no context save if was idle during rs0 */
#define   REDRESTORES           (1<<2) /* no restore if was idle during rs0 */
#define VIDCTL                  0x111c0
#define VIDSTS                  0x111c8
#define VIDSTART                0x111cc /* 8 bits */
#define MEMSTAT_ILK                     0x111f8
#define   MEMSTAT_VID_MASK      0x7f00
#define   MEMSTAT_VID_SHIFT     8
#define   MEMSTAT_PSTATE_MASK   0x00f8
#define   MEMSTAT_PSTATE_SHIFT  3
#define   MEMSTAT_MON_ACTV      (1<<2)
#define   MEMSTAT_SRC_CTL_MASK  0x0003
#define   MEMSTAT_SRC_CTL_CORE  0
#define   MEMSTAT_SRC_CTL_TRB   1
#define   MEMSTAT_SRC_CTL_THM   2
#define   MEMSTAT_SRC_CTL_STDBY 3
#define RCPREVBSYTUPAVG         0x113b8
#define RCPREVBSYTDNAVG         0x113bc
#define PMMISC                  0x11214
#define   MCPPCE_EN             (1<<0) /* enable PM_MSG from PCH->MPC */
#define SDEW                    0x1124c
#define CSIEW0                  0x11250
#define CSIEW1                  0x11254
#define CSIEW2                  0x11258
#define PEW                     0x1125c
#define DEW                     0x11270
#define MCHAFE                  0x112c0
#define CSIEC                   0x112e0
#define DMIEC                   0x112e4
#define DDREC                   0x112e8
#define PEG0EC                  0x112ec
#define PEG1EC                  0x112f0
#define GFXEC                   0x112f4
#define RPPREVBSYTUPAVG         0x113b8
#define RPPREVBSYTDNAVG         0x113bc
#define ECR                     0x11600
#define   ECR_GPFE              (1<<31)
#define   ECR_IMONE             (1<<30)
#define   ECR_CAP_MASK          0x0000001f /* Event range, 0-31 */
#define OGW0                    0x11608
#define OGW1                    0x1160c
#define EG0                     0x11610
#define EG1                     0x11614
#define EG2                     0x11618
#define EG3                     0x1161c
#define EG4                     0x11620
#define EG5                     0x11624
#define EG6                     0x11628
#define EG7                     0x1162c
#define PXW                     0x11664
#define PXWL                    0x11680
#define LCFUSE02                0x116c0
#define   LCFUSE_HIV_MASK       0x000000ff
#define CSIPLL0                 0x12c10
#define DDRMPLL1                0X12c20
#define PEG_BAND_GAP_DATA       0x14d68

#define GEN6_GT_PERF_STATUS     0x145948
#define GEN6_RP_STATE_LIMITS    0x145994
#define GEN6_RP_STATE_CAP       0x145998

/*
 * Logical Context regs
 */
#define CCID                    0x2180
#define   CCID_EN               (1<<0)
/*
 * Overlay regs
 */

#define OVADD                   0x30000
#define DOVSTA                  0x30008
#define OC_BUF                  (0x3<<20)
#define OGAMC5                  0x30010
#define OGAMC4                  0x30014
#define OGAMC3                  0x30018
#define OGAMC2                  0x3001c
#define OGAMC1                  0x30020
#define OGAMC0                  0x30024

/*
 * Display engine regs
 */

/* Pipe A timing regs */
#define _HTOTAL_A       0x60000
#define _HBLANK_A       0x60004
#define _HSYNC_A                0x60008
#define _VTOTAL_A       0x6000c
#define _VBLANK_A       0x60010
#define _VSYNC_A                0x60014
#define _PIPEASRC       0x6001c
#define _BCLRPAT_A      0x60020

/* Pipe B timing regs */
#define _HTOTAL_B       0x61000
#define _HBLANK_B       0x61004
#define _HSYNC_B                0x61008
#define _VTOTAL_B       0x6100c
#define _VBLANK_B       0x61010
#define _VSYNC_B                0x61014
#define _PIPEBSRC       0x6101c
#define _BCLRPAT_B      0x61020

#define HTOTAL(pipe) _PIPE(pipe, _HTOTAL_A, _HTOTAL_B)
#define HBLANK(pipe) _PIPE(pipe, _HBLANK_A, _HBLANK_B)
#define HSYNC(pipe) _PIPE(pipe, _HSYNC_A, _HSYNC_B)
#define VTOTAL(pipe) _PIPE(pipe, _VTOTAL_A, _VTOTAL_B)
#define VBLANK(pipe) _PIPE(pipe, _VBLANK_A, _VBLANK_B)
#define VSYNC(pipe) _PIPE(pipe, _VSYNC_A, _VSYNC_B)
#define BCLRPAT(pipe) _PIPE(pipe, _BCLRPAT_A, _BCLRPAT_B)

/* VGA port control */
#define ADPA                    0x61100
#define   ADPA_DAC_ENABLE       (1<<31)
#define   ADPA_DAC_DISABLE      0
#define   ADPA_PIPE_SELECT_MASK (1<<30)
#define   ADPA_PIPE_A_SELECT    0
#define   ADPA_PIPE_B_SELECT    (1<<30)
#define   ADPA_PIPE_SELECT(pipe) ((pipe) << 30)
#define   ADPA_USE_VGA_HVPOLARITY (1<<15)
#define   ADPA_SETS_HVPOLARITY  0
#define   ADPA_VSYNC_CNTL_DISABLE (1<<11)
#define   ADPA_VSYNC_CNTL_ENABLE 0
#define   ADPA_HSYNC_CNTL_DISABLE (1<<10)
#define   ADPA_HSYNC_CNTL_ENABLE 0
#define   ADPA_VSYNC_ACTIVE_HIGH (1<<4)
#define   ADPA_VSYNC_ACTIVE_LOW 0
#define   ADPA_HSYNC_ACTIVE_HIGH (1<<3)
#define   ADPA_HSYNC_ACTIVE_LOW 0
#define   ADPA_DPMS_MASK        (~(3<<10))
#define   ADPA_DPMS_ON          (0<<10)
#define   ADPA_DPMS_SUSPEND     (1<<10)
#define   ADPA_DPMS_STANDBY     (2<<10)
#define   ADPA_DPMS_OFF         (3<<10)


/* Hotplug control (945+ only) */
#define PORT_HOTPLUG_EN         0x61110
#define   HDMIB_HOTPLUG_INT_EN                  (1 << 29)
#define   DPB_HOTPLUG_INT_EN                    (1 << 29)
#define   HDMIC_HOTPLUG_INT_EN                  (1 << 28)
#define   DPC_HOTPLUG_INT_EN                    (1 << 28)
#define   HDMID_HOTPLUG_INT_EN                  (1 << 27)
#define   DPD_HOTPLUG_INT_EN                    (1 << 27)
#define   SDVOB_HOTPLUG_INT_EN                  (1 << 26)
#define   SDVOC_HOTPLUG_INT_EN                  (1 << 25)
#define   TV_HOTPLUG_INT_EN                     (1 << 18)
#define   CRT_HOTPLUG_INT_EN                    (1 << 9)
#define   CRT_HOTPLUG_FORCE_DETECT              (1 << 3)
#define CRT_HOTPLUG_ACTIVATION_PERIOD_32        (0 << 8)
/* must use period 64 on GM45 according to docs */
#define CRT_HOTPLUG_ACTIVATION_PERIOD_64        (1 << 8)
#define CRT_HOTPLUG_DAC_ON_TIME_2M              (0 << 7)
#define CRT_HOTPLUG_DAC_ON_TIME_4M              (1 << 7)
#define CRT_HOTPLUG_VOLTAGE_COMPARE_40          (0 << 5)
#define CRT_HOTPLUG_VOLTAGE_COMPARE_50          (1 << 5)
#define CRT_HOTPLUG_VOLTAGE_COMPARE_60          (2 << 5)
#define CRT_HOTPLUG_VOLTAGE_COMPARE_70          (3 << 5)
#define CRT_HOTPLUG_VOLTAGE_COMPARE_MASK        (3 << 5)
#define CRT_HOTPLUG_DETECT_DELAY_1G             (0 << 4)
#define CRT_HOTPLUG_DETECT_DELAY_2G             (1 << 4)
#define CRT_HOTPLUG_DETECT_VOLTAGE_325MV        (0 << 2)
#define CRT_HOTPLUG_DETECT_VOLTAGE_475MV        (1 << 2)

#define PORT_HOTPLUG_STAT       0x61114
#define   HDMIB_HOTPLUG_INT_STATUS              (1 << 29)
#define   DPB_HOTPLUG_INT_STATUS                (1 << 29)
#define   HDMIC_HOTPLUG_INT_STATUS              (1 << 28)
#define   DPC_HOTPLUG_INT_STATUS                (1 << 28)
#define   HDMID_HOTPLUG_INT_STATUS              (1 << 27)
#define   DPD_HOTPLUG_INT_STATUS                (1 << 27)
#define   CRT_HOTPLUG_INT_STATUS                (1 << 11)
#define   TV_HOTPLUG_INT_STATUS                 (1 << 10)
#define   CRT_HOTPLUG_MONITOR_MASK              (3 << 8)
#define   CRT_HOTPLUG_MONITOR_COLOR             (3 << 8)
#define   CRT_HOTPLUG_MONITOR_MONO              (2 << 8)
#define   CRT_HOTPLUG_MONITOR_NONE              (0 << 8)
#define   SDVOC_HOTPLUG_INT_STATUS              (1 << 7)
#define   SDVOB_HOTPLUG_INT_STATUS              (1 << 6)

/* SDVO port control */
#define SDVOB                   0x61140
#define SDVOC                   0x61160
#define   SDVO_ENABLE           (1 << 31)
#define   SDVO_PIPE_B_SELECT    (1 << 30)
#define   SDVO_STALL_SELECT     (1 << 29)
#define   SDVO_INTERRUPT_ENABLE (1 << 26)
/**
 * 915G/GM SDVO pixel multiplier.
 *
 * Programmed value is multiplier - 1, up to 5x.
 *
 * \sa DPLL_MD_UDI_MULTIPLIER_MASK
 */
#define   SDVO_PORT_MULTIPLY_MASK       (7 << 23)
#define   SDVO_PORT_MULTIPLY_SHIFT              23
#define   SDVO_PHASE_SELECT_MASK        (15 << 19)
#define   SDVO_PHASE_SELECT_DEFAULT     (6 << 19)
#define   SDVO_CLOCK_OUTPUT_INVERT      (1 << 18)
#define   SDVOC_GANG_MODE               (1 << 16)
#define   SDVO_ENCODING_SDVO            (0x0 << 10)
#define   SDVO_ENCODING_HDMI            (0x2 << 10)
/** Requird for HDMI operation */
#define   SDVO_NULL_PACKETS_DURING_VSYNC (1 << 9)
#define   SDVO_COLOR_RANGE_16_235       (1 << 8)
#define   SDVO_BORDER_ENABLE            (1 << 7)
#define   SDVO_AUDIO_ENABLE             (1 << 6)
/** New with 965, default is to be set */
#define   SDVO_VSYNC_ACTIVE_HIGH        (1 << 4)
/** New with 965, default is to be set */
#define   SDVO_HSYNC_ACTIVE_HIGH        (1 << 3)
#define   SDVOB_PCIE_CONCURRENCY        (1 << 3)
#define   SDVO_DETECTED                 (1 << 2)
/* Bits to be preserved when writing */
#define   SDVOB_PRESERVE_MASK ((1 << 17) | (1 << 16) | (1 << 14) | (1 << 26))
#define   SDVOC_PRESERVE_MASK ((1 << 17) | (1 << 26))

/* DVO port control */
#define DVOA                    0x61120
#define DVOB                    0x61140
#define DVOC                    0x61160
#define   DVO_ENABLE                    (1 << 31)
#define   DVO_PIPE_B_SELECT             (1 << 30)
#define   DVO_PIPE_STALL_UNUSED         (0 << 28)
#define   DVO_PIPE_STALL                (1 << 28)
#define   DVO_PIPE_STALL_TV             (2 << 28)
#define   DVO_PIPE_STALL_MASK           (3 << 28)
#define   DVO_USE_VGA_SYNC              (1 << 15)
#define   DVO_DATA_ORDER_I740           (0 << 14)
#define   DVO_DATA_ORDER_FP             (1 << 14)
#define   DVO_VSYNC_DISABLE             (1 << 11)
#define   DVO_HSYNC_DISABLE             (1 << 10)
#define   DVO_VSYNC_TRISTATE            (1 << 9)
#define   DVO_HSYNC_TRISTATE            (1 << 8)
#define   DVO_BORDER_ENABLE             (1 << 7)
#define   DVO_DATA_ORDER_GBRG           (1 << 6)
#define   DVO_DATA_ORDER_RGGB           (0 << 6)
#define   DVO_DATA_ORDER_GBRG_ERRATA    (0 << 6)
#define   DVO_DATA_ORDER_RGGB_ERRATA    (1 << 6)
#define   DVO_VSYNC_ACTIVE_HIGH         (1 << 4)
#define   DVO_HSYNC_ACTIVE_HIGH         (1 << 3)
#define   DVO_BLANK_ACTIVE_HIGH         (1 << 2)
#define   DVO_OUTPUT_CSTATE_PIXELS      (1 << 1)        /* SDG only */
#define   DVO_OUTPUT_SOURCE_SIZE_PIXELS (1 << 0)        /* SDG only */
#define   DVO_PRESERVE_MASK             (0x7<<24)
#define DVOA_SRCDIM             0x61124
#define DVOB_SRCDIM             0x61144
#define DVOC_SRCDIM             0x61164
#define   DVO_SRCDIM_HORIZONTAL_SHIFT   12
#define   DVO_SRCDIM_VERTICAL_SHIFT     0

/* LVDS port control */
#define LVDS                    0x61180
/*
 * Enables the LVDS port.  This bit must be set before DPLLs are enabled, as
 * the DPLL semantics change when the LVDS is assigned to that pipe.
 */
#define   LVDS_PORT_EN                  (1 << 31)
/* Selects pipe B for LVDS data.  Must be set on pre-965. */
#define   LVDS_PIPEB_SELECT             (1 << 30)
#define   LVDS_PIPE_MASK                (1 << 30)
#define   LVDS_PIPE(pipe)               ((pipe) << 30)
/* LVDS dithering flag on 965/g4x platform */
#define   LVDS_ENABLE_DITHER            (1 << 25)
/* LVDS sync polarity flags. Set to invert (i.e. negative) */
#define   LVDS_VSYNC_POLARITY           (1 << 21)
#define   LVDS_HSYNC_POLARITY           (1 << 20)

/* Enable border for unscaled (or aspect-scaled) display */
#define   LVDS_BORDER_ENABLE            (1 << 15)
/*
 * Enables the A0-A2 data pairs and CLKA, containing 18 bits of color data per
 * pixel.
 */
#define   LVDS_A0A2_CLKA_POWER_MASK     (3 << 8)
#define   LVDS_A0A2_CLKA_POWER_DOWN     (0 << 8)
#define   LVDS_A0A2_CLKA_POWER_UP       (3 << 8)
/*
 * Controls the A3 data pair, which contains the additional LSBs for 24 bit
 * mode.  Only enabled if LVDS_A0A2_CLKA_POWER_UP also indicates it should be
 * on.
 */
#define   LVDS_A3_POWER_MASK            (3 << 6)
#define   LVDS_A3_POWER_DOWN            (0 << 6)
#define   LVDS_A3_POWER_UP              (3 << 6)
/*
 * Controls the CLKB pair.  This should only be set when LVDS_B0B3_POWER_UP
 * is set.
 */
#define   LVDS_CLKB_POWER_MASK          (3 << 4)
#define   LVDS_CLKB_POWER_DOWN          (0 << 4)
#define   LVDS_CLKB_POWER_UP            (3 << 4)
/*
 * Controls the B0-B3 data pairs.  This must be set to match the DPLL p2
 * setting for whether we are in dual-channel mode.  The B3 pair will
 * additionally only be powered up when LVDS_A3_POWER_UP is set.
 */
#define   LVDS_B0B3_POWER_MASK          (3 << 2)
#define   LVDS_B0B3_POWER_DOWN          (0 << 2)
#define   LVDS_B0B3_POWER_UP            (3 << 2)

/* Video Data Island Packet control */
#define VIDEO_DIP_DATA          0x61178
#define VIDEO_DIP_CTL           0x61170
#define   VIDEO_DIP_ENABLE              (1 << 31)
#define   VIDEO_DIP_PORT_B              (1 << 29)
#define   VIDEO_DIP_PORT_C              (2 << 29)
#define   VIDEO_DIP_ENABLE_AVI          (1 << 21)
#define   VIDEO_DIP_ENABLE_VENDOR       (2 << 21)
#define   VIDEO_DIP_ENABLE_SPD          (8 << 21)
#define   VIDEO_DIP_SELECT_AVI          (0 << 19)
#define   VIDEO_DIP_SELECT_VENDOR       (1 << 19)
#define   VIDEO_DIP_SELECT_SPD          (3 << 19)
#define   VIDEO_DIP_SELECT_MASK         (3 << 19)
#define   VIDEO_DIP_FREQ_ONCE           (0 << 16)
#define   VIDEO_DIP_FREQ_VSYNC          (1 << 16)
#define   VIDEO_DIP_FREQ_2VSYNC         (2 << 16)

/* Panel power sequencing */
#define PP_STATUS       0x61200
#define   PP_ON         (1 << 31)
/*
 * Indicates that all dependencies of the panel are on:
 *
 * - PLL enabled
 * - pipe enabled
 * - LVDS/DVOB/DVOC on
 */
#define   PP_READY              (1 << 30)
#define   PP_SEQUENCE_NONE      (0 << 28)
#define   PP_SEQUENCE_POWER_UP  (1 << 28)
#define   PP_SEQUENCE_POWER_DOWN (2 << 28)
#define   PP_SEQUENCE_MASK      (3 << 28)
#define   PP_SEQUENCE_SHIFT     28
#define   PP_CYCLE_DELAY_ACTIVE (1 << 27)
#define   PP_SEQUENCE_STATE_MASK 0x0000000f
#define   PP_SEQUENCE_STATE_OFF_IDLE    (0x0 << 0)
#define   PP_SEQUENCE_STATE_OFF_S0_1    (0x1 << 0)
#define   PP_SEQUENCE_STATE_OFF_S0_2    (0x2 << 0)
#define   PP_SEQUENCE_STATE_OFF_S0_3    (0x3 << 0)
#define   PP_SEQUENCE_STATE_ON_IDLE     (0x8 << 0)
#define   PP_SEQUENCE_STATE_ON_S1_0     (0x9 << 0)
#define   PP_SEQUENCE_STATE_ON_S1_2     (0xa << 0)
#define   PP_SEQUENCE_STATE_ON_S1_3     (0xb << 0)
#define   PP_SEQUENCE_STATE_RESET       (0xf << 0)
#define PP_CONTROL      0x61204
#define   POWER_TARGET_ON       (1 << 0)
#define PP_ON_DELAYS    0x61208
#define PP_OFF_DELAYS   0x6120c
#define PP_DIVISOR      0x61210

/* Panel fitting */
#define PFIT_CONTROL    0x61230
#define   PFIT_ENABLE           (1 << 31)
#define   PFIT_PIPE_MASK        (3 << 29)
#define   PFIT_PIPE_SHIFT       29
#define   VERT_INTERP_DISABLE   (0 << 10)
#define   VERT_INTERP_BILINEAR  (1 << 10)
#define   VERT_INTERP_MASK      (3 << 10)
#define   VERT_AUTO_SCALE       (1 << 9)
#define   HORIZ_INTERP_DISABLE  (0 << 6)
#define   HORIZ_INTERP_BILINEAR (1 << 6)
#define   HORIZ_INTERP_MASK     (3 << 6)
#define   HORIZ_AUTO_SCALE      (1 << 5)
#define   PANEL_8TO6_DITHER_ENABLE (1 << 3)
#define   PFIT_FILTER_FUZZY     (0 << 24)
#define   PFIT_SCALING_AUTO     (0 << 26)
#define   PFIT_SCALING_PROGRAMMED (1 << 26)
#define   PFIT_SCALING_PILLAR   (2 << 26)
#define   PFIT_SCALING_LETTER   (3 << 26)
#define PFIT_PGM_RATIOS 0x61234
#define   PFIT_VERT_SCALE_MASK                  0xfff00000
#define   PFIT_HORIZ_SCALE_MASK                 0x0000fff0
/* Pre-965 */
#define         PFIT_VERT_SCALE_SHIFT           20
#define         PFIT_VERT_SCALE_MASK            0xfff00000
#define         PFIT_HORIZ_SCALE_SHIFT          4
#define         PFIT_HORIZ_SCALE_MASK           0x0000fff0
/* 965+ */
#define         PFIT_VERT_SCALE_SHIFT_965       16
#define         PFIT_VERT_SCALE_MASK_965        0x1fff0000
#define         PFIT_HORIZ_SCALE_SHIFT_965      0
#define         PFIT_HORIZ_SCALE_MASK_965       0x00001fff

#define PFIT_AUTO_RATIOS 0x61238

/* Backlight control */
#define BLC_PWM_CTL             0x61254
#define   BACKLIGHT_MODULATION_FREQ_SHIFT               (17)
#define BLC_PWM_CTL2            0x61250 /* 965+ only */
#define   BLM_COMBINATION_MODE (1 << 30)
/*
 * This is the most significant 15 bits of the number of backlight cycles in a
 * complete cycle of the modulated backlight control.
 *
 * The actual value is this field multiplied by two.
 */
#define   BACKLIGHT_MODULATION_FREQ_MASK                (0x7fff << 17)
#define   BLM_LEGACY_MODE                               (1 << 16)
/*
 * This is the number of cycles out of the backlight modulation cycle for which
 * the backlight is on.
 *
 * This field must be no greater than the number of cycles in the complete
 * backlight modulation cycle.
 */
#define   BACKLIGHT_DUTY_CYCLE_SHIFT            (0)
#define   BACKLIGHT_DUTY_CYCLE_MASK             (0xffff)

#define BLC_HIST_CTL            0x61260

/* TV port control */
#define TV_CTL                  0x68000
/** Enables the TV encoder */
# define TV_ENC_ENABLE                  (1 << 31)
/** Sources the TV encoder input from pipe B instead of A. */
# define TV_ENC_PIPEB_SELECT            (1 << 30)
/** Outputs composite video (DAC A only) */
# define TV_ENC_OUTPUT_COMPOSITE        (0 << 28)
/** Outputs SVideo video (DAC B/C) */
# define TV_ENC_OUTPUT_SVIDEO           (1 << 28)
/** Outputs Component video (DAC A/B/C) */
# define TV_ENC_OUTPUT_COMPONENT        (2 << 28)
/** Outputs Composite and SVideo (DAC A/B/C) */
# define TV_ENC_OUTPUT_SVIDEO_COMPOSITE (3 << 28)
# define TV_TRILEVEL_SYNC               (1 << 21)
/** Enables slow sync generation (945GM only) */
# define TV_SLOW_SYNC                   (1 << 20)
/** Selects 4x oversampling for 480i and 576p */
# define TV_OVERSAMPLE_4X               (0 << 18)
/** Selects 2x oversampling for 720p and 1080i */
# define TV_OVERSAMPLE_2X               (1 << 18)
/** Selects no oversampling for 1080p */
# define TV_OVERSAMPLE_NONE             (2 << 18)
/** Selects 8x oversampling */
# define TV_OVERSAMPLE_8X               (3 << 18)
/** Selects progressive mode rather than interlaced */
# define TV_PROGRESSIVE                 (1 << 17)
/** Sets the colorburst to PAL mode.  Required for non-M PAL modes. */
# define TV_PAL_BURST                   (1 << 16)
/** Field for setting delay of Y compared to C */
# define TV_YC_SKEW_MASK                (7 << 12)
/** Enables a fix for 480p/576p standard definition modes on the 915GM only */
# define TV_ENC_SDP_FIX                 (1 << 11)
/**
 * Enables a fix for the 915GM only.
 *
 * Not sure what it does.
 */
# define TV_ENC_C0_FIX                  (1 << 10)
/** Bits that must be preserved by software */
# define TV_CTL_SAVE                    ((1 << 11) | (3 << 9) | (7 << 6) | 0xf)
# define TV_FUSE_STATE_MASK             (3 << 4)
/** Read-only state that reports all features enabled */
# define TV_FUSE_STATE_ENABLED          (0 << 4)
/** Read-only state that reports that Macrovision is disabled in hardware*/
# define TV_FUSE_STATE_NO_MACROVISION   (1 << 4)
/** Read-only state that reports that TV-out is disabled in hardware. */
# define TV_FUSE_STATE_DISABLED         (2 << 4)
/** Normal operation */
# define TV_TEST_MODE_NORMAL            (0 << 0)
/** Encoder test pattern 1 - combo pattern */
# define TV_TEST_MODE_PATTERN_1         (1 << 0)
/** Encoder test pattern 2 - full screen vertical 75% color bars */
# define TV_TEST_MODE_PATTERN_2         (2 << 0)
/** Encoder test pattern 3 - full screen horizontal 75% color bars */
# define TV_TEST_MODE_PATTERN_3         (3 << 0)
/** Encoder test pattern 4 - random noise */
# define TV_TEST_MODE_PATTERN_4         (4 << 0)
/** Encoder test pattern 5 - linear color ramps */
# define TV_TEST_MODE_PATTERN_5         (5 << 0)
/**
 * This test mode forces the DACs to 50% of full output.
 *
 * This is used for load detection in combination with TVDAC_SENSE_MASK
 */
# define TV_TEST_MODE_MONITOR_DETECT    (7 << 0)
# define TV_TEST_MODE_MASK              (7 << 0)

#define TV_DAC                  0x68004
# define TV_DAC_SAVE            0x00ffff00
/**
 * Reports that DAC state change logic has reported change (RO).
 *
 * This gets cleared when TV_DAC_STATE_EN is cleared
*/
# define TVDAC_STATE_CHG                (1 << 31)
# define TVDAC_SENSE_MASK               (7 << 28)
/** Reports that DAC A voltage is above the detect threshold */
# define TVDAC_A_SENSE                  (1 << 30)
/** Reports that DAC B voltage is above the detect threshold */
# define TVDAC_B_SENSE                  (1 << 29)
/** Reports that DAC C voltage is above the detect threshold */
# define TVDAC_C_SENSE                  (1 << 28)
/**
 * Enables DAC state detection logic, for load-based TV detection.
 *
 * The PLL of the chosen pipe (in TV_CTL) must be running, and the encoder set
 * to off, for load detection to work.
 */
# define TVDAC_STATE_CHG_EN             (1 << 27)
/** Sets the DAC A sense value to high */
# define TVDAC_A_SENSE_CTL              (1 << 26)
/** Sets the DAC B sense value to high */
# define TVDAC_B_SENSE_CTL              (1 << 25)
/** Sets the DAC C sense value to high */
# define TVDAC_C_SENSE_CTL              (1 << 24)
/** Overrides the ENC_ENABLE and DAC voltage levels */
# define DAC_CTL_OVERRIDE               (1 << 7)
/** Sets the slew rate.  Must be preserved in software */
# define ENC_TVDAC_SLEW_FAST            (1 << 6)
# define DAC_A_1_3_V                    (0 << 4)
# define DAC_A_1_1_V                    (1 << 4)
# define DAC_A_0_7_V                    (2 << 4)
# define DAC_A_MASK                     (3 << 4)
# define DAC_B_1_3_V                    (0 << 2)
# define DAC_B_1_1_V                    (1 << 2)
# define DAC_B_0_7_V                    (2 << 2)
# define DAC_B_MASK                     (3 << 2)
# define DAC_C_1_3_V                    (0 << 0)
# define DAC_C_1_1_V                    (1 << 0)
# define DAC_C_0_7_V                    (2 << 0)
# define DAC_C_MASK                     (3 << 0)

/**
 * CSC coefficients are stored in a floating point format with 9 bits of
 * mantissa and 2 or 3 bits of exponent.  The exponent is represented as 2**-n,
 * where 2-bit exponents are unsigned n, and 3-bit exponents are signed n with
 * -1 (0x3) being the only legal negative value.
 */
#define TV_CSC_Y                0x68010
# define TV_RY_MASK                     0x07ff0000
# define TV_RY_SHIFT                    16
# define TV_GY_MASK                     0x00000fff
# define TV_GY_SHIFT                    0

#define TV_CSC_Y2               0x68014
# define TV_BY_MASK                     0x07ff0000
# define TV_BY_SHIFT                    16
/**
 * Y attenuation for component video.
 *
 * Stored in 1.9 fixed point.
 */
# define TV_AY_MASK                     0x000003ff
# define TV_AY_SHIFT                    0

#define TV_CSC_U                0x68018
# define TV_RU_MASK                     0x07ff0000
# define TV_RU_SHIFT                    16
# define TV_GU_MASK                     0x000007ff
# define TV_GU_SHIFT                    0

#define TV_CSC_U2               0x6801c
# define TV_BU_MASK                     0x07ff0000
# define TV_BU_SHIFT                    16
/**
 * U attenuation for component video.
 *
 * Stored in 1.9 fixed point.
 */
# define TV_AU_MASK                     0x000003ff
# define TV_AU_SHIFT                    0

#define TV_CSC_V                0x68020
# define TV_RV_MASK                     0x0fff0000
# define TV_RV_SHIFT                    16
# define TV_GV_MASK                     0x000007ff
# define TV_GV_SHIFT                    0

#define TV_CSC_V2               0x68024
# define TV_BV_MASK                     0x07ff0000
# define TV_BV_SHIFT                    16
/**
 * V attenuation for component video.
 *
 * Stored in 1.9 fixed point.
 */
# define TV_AV_MASK                     0x000007ff
# define TV_AV_SHIFT                    0

#define TV_CLR_KNOBS            0x68028
/** 2s-complement brightness adjustment */
# define TV_BRIGHTNESS_MASK             0xff000000
# define TV_BRIGHTNESS_SHIFT            24
/** Contrast adjustment, as a 2.6 unsigned floating point number */
# define TV_CONTRAST_MASK               0x00ff0000
# define TV_CONTRAST_SHIFT              16
/** Saturation adjustment, as a 2.6 unsigned floating point number */
# define TV_SATURATION_MASK             0x0000ff00
# define TV_SATURATION_SHIFT            8
/** Hue adjustment, as an integer phase angle in degrees */
# define TV_HUE_MASK                    0x000000ff
# define TV_HUE_SHIFT                   0

#define TV_CLR_LEVEL            0x6802c
/** Controls the DAC level for black */
# define TV_BLACK_LEVEL_MASK            0x01ff0000
# define TV_BLACK_LEVEL_SHIFT           16
/** Controls the DAC level for blanking */
# define TV_BLANK_LEVEL_MASK            0x000001ff
# define TV_BLANK_LEVEL_SHIFT           0

#define TV_H_CTL_1              0x68030
/** Number of pixels in the hsync. */
# define TV_HSYNC_END_MASK              0x1fff0000
# define TV_HSYNC_END_SHIFT             16
/** Total number of pixels minus one in the line (display and blanking). */
# define TV_HTOTAL_MASK                 0x00001fff
# define TV_HTOTAL_SHIFT                0

#define TV_H_CTL_2              0x68034
/** Enables the colorburst (needed for non-component color) */
# define TV_BURST_ENA                   (1 << 31)
/** Offset of the colorburst from the start of hsync, in pixels minus one. */
# define TV_HBURST_START_SHIFT          16
# define TV_HBURST_START_MASK           0x1fff0000
/** Length of the colorburst */
# define TV_HBURST_LEN_SHIFT            0
# define TV_HBURST_LEN_MASK             0x0001fff

#define TV_H_CTL_3              0x68038
/** End of hblank, measured in pixels minus one from start of hsync */
# define TV_HBLANK_END_SHIFT            16
# define TV_HBLANK_END_MASK             0x1fff0000
/** Start of hblank, measured in pixels minus one from start of hsync */
# define TV_HBLANK_START_SHIFT          0
# define TV_HBLANK_START_MASK           0x0001fff

#define TV_V_CTL_1              0x6803c
/** XXX */
# define TV_NBR_END_SHIFT               16
# define TV_NBR_END_MASK                0x07ff0000
/** XXX */
# define TV_VI_END_F1_SHIFT             8
# define TV_VI_END_F1_MASK              0x00003f00
/** XXX */
# define TV_VI_END_F2_SHIFT             0
# define TV_VI_END_F2_MASK              0x0000003f

#define TV_V_CTL_2              0x68040
/** Length of vsync, in half lines */
# define TV_VSYNC_LEN_MASK              0x07ff0000
# define TV_VSYNC_LEN_SHIFT             16
/** Offset of the start of vsync in field 1, measured in one less than the
 * number of half lines.
 */
# define TV_VSYNC_START_F1_MASK         0x00007f00
# define TV_VSYNC_START_F1_SHIFT        8
/**
 * Offset of the start of vsync in field 2, measured in one less than the
 * number of half lines.
 */
# define TV_VSYNC_START_F2_MASK         0x0000007f
# define TV_VSYNC_START_F2_SHIFT        0

#define TV_V_CTL_3              0x68044
/** Enables generation of the equalization signal */
# define TV_EQUAL_ENA                   (1 << 31)
/** Length of vsync, in half lines */
# define TV_VEQ_LEN_MASK                0x007f0000
# define TV_VEQ_LEN_SHIFT               16
/** Offset of the start of equalization in field 1, measured in one less than
 * the number of half lines.
 */
# define TV_VEQ_START_F1_MASK           0x0007f00
# define TV_VEQ_START_F1_SHIFT          8
/**
 * Offset of the start of equalization in field 2, measured in one less than
 * the number of half lines.
 */
# define TV_VEQ_START_F2_MASK           0x000007f
# define TV_VEQ_START_F2_SHIFT          0

#define TV_V_CTL_4              0x68048
/**
 * Offset to start of vertical colorburst, measured in one less than the
 * number of lines from vertical start.
 */
# define TV_VBURST_START_F1_MASK        0x003f0000
# define TV_VBURST_START_F1_SHIFT       16
/**
 * Offset to the end of vertical colorburst, measured in one less than the
 * number of lines from the start of NBR.
 */
# define TV_VBURST_END_F1_MASK          0x000000ff
# define TV_VBURST_END_F1_SHIFT         0

#define TV_V_CTL_5              0x6804c
/**
 * Offset to start of vertical colorburst, measured in one less than the
 * number of lines from vertical start.
 */
# define TV_VBURST_START_F2_MASK        0x003f0000
# define TV_VBURST_START_F2_SHIFT       16
/**
 * Offset to the end of vertical colorburst, measured in one less than the
 * number of lines from the start of NBR.
 */
# define TV_VBURST_END_F2_MASK          0x000000ff
# define TV_VBURST_END_F2_SHIFT         0

#define TV_V_CTL_6              0x68050
/**
 * Offset to start of vertical colorburst, measured in one less than the
 * number of lines from vertical start.
 */
# define TV_VBURST_START_F3_MASK        0x003f0000
# define TV_VBURST_START_F3_SHIFT       16
/**
 * Offset to the end of vertical colorburst, measured in one less than the
 * number of lines from the start of NBR.
 */
# define TV_VBURST_END_F3_MASK          0x000000ff
# define TV_VBURST_END_F3_SHIFT         0

#define TV_V_CTL_7              0x68054
/**
 * Offset to start of vertical colorburst, measured in one less than the
 * number of lines from vertical start.
 */
# define TV_VBURST_START_F4_MASK        0x003f0000
# define TV_VBURST_START_F4_SHIFT       16
/**
 * Offset to the end of vertical colorburst, measured in one less than the
 * number of lines from the start of NBR.
 */
# define TV_VBURST_END_F4_MASK          0x000000ff
# define TV_VBURST_END_F4_SHIFT         0

#define TV_SC_CTL_1             0x68060
/** Turns on the first subcarrier phase generation DDA */
# define TV_SC_DDA1_EN                  (1 << 31)
/** Turns on the first subcarrier phase generation DDA */
# define TV_SC_DDA2_EN                  (1 << 30)
/** Turns on the first subcarrier phase generation DDA */
# define TV_SC_DDA3_EN                  (1 << 29)
/** Sets the subcarrier DDA to reset frequency every other field */
# define TV_SC_RESET_EVERY_2            (0 << 24)
/** Sets the subcarrier DDA to reset frequency every fourth field */
# define TV_SC_RESET_EVERY_4            (1 << 24)
/** Sets the subcarrier DDA to reset frequency every eighth field */
# define TV_SC_RESET_EVERY_8            (2 << 24)
/** Sets the subcarrier DDA to never reset the frequency */
# define TV_SC_RESET_NEVER              (3 << 24)
/** Sets the peak amplitude of the colorburst.*/
# define TV_BURST_LEVEL_MASK            0x00ff0000
# define TV_BURST_LEVEL_SHIFT           16
/** Sets the increment of the first subcarrier phase generation DDA */
# define TV_SCDDA1_INC_MASK             0x00000fff
# define TV_SCDDA1_INC_SHIFT            0

#define TV_SC_CTL_2             0x68064
/** Sets the rollover for the second subcarrier phase generation DDA */
# define TV_SCDDA2_SIZE_MASK            0x7fff0000
# define TV_SCDDA2_SIZE_SHIFT           16
/** Sets the increent of the second subcarrier phase generation DDA */
# define TV_SCDDA2_INC_MASK             0x00007fff
# define TV_SCDDA2_INC_SHIFT            0

#define TV_SC_CTL_3             0x68068
/** Sets the rollover for the third subcarrier phase generation DDA */
# define TV_SCDDA3_SIZE_MASK            0x7fff0000
# define TV_SCDDA3_SIZE_SHIFT           16
/** Sets the increent of the third subcarrier phase generation DDA */
# define TV_SCDDA3_INC_MASK             0x00007fff
# define TV_SCDDA3_INC_SHIFT            0

#define TV_WIN_POS              0x68070
/** X coordinate of the display from the start of horizontal active */
# define TV_XPOS_MASK                   0x1fff0000
# define TV_XPOS_SHIFT                  16
/** Y coordinate of the display from the start of vertical active (NBR) */
# define TV_YPOS_MASK                   0x00000fff
# define TV_YPOS_SHIFT                  0

#define TV_WIN_SIZE             0x68074
/** Horizontal size of the display window, measured in pixels*/
# define TV_XSIZE_MASK                  0x1fff0000
# define TV_XSIZE_SHIFT                 16
/**
 * Vertical size of the display window, measured in pixels.
 *
 * Must be even for interlaced modes.
 */
# define TV_YSIZE_MASK                  0x00000fff
# define TV_YSIZE_SHIFT                 0

#define TV_FILTER_CTL_1         0x68080
/**
 * Enables automatic scaling calculation.
 *
 * If set, the rest of the registers are ignored, and the calculated values can
 * be read back from the register.
 */
# define TV_AUTO_SCALE                  (1 << 31)
/**
 * Disables the vertical filter.
 *
 * This is required on modes more than 1024 pixels wide */
# define TV_V_FILTER_BYPASS             (1 << 29)
/** Enables adaptive vertical filtering */
# define TV_VADAPT                      (1 << 28)
# define TV_VADAPT_MODE_MASK            (3 << 26)
/** Selects the least adaptive vertical filtering mode */
# define TV_VADAPT_MODE_LEAST           (0 << 26)
/** Selects the moderately adaptive vertical filtering mode */
# define TV_VADAPT_MODE_MODERATE        (1 << 26)
/** Selects the most adaptive vertical filtering mode */
# define TV_VADAPT_MODE_MOST            (3 << 26)
/**
 * Sets the horizontal scaling factor.
 *
 * This should be the fractional part of the horizontal scaling factor divided
 * by the oversampling rate.  TV_HSCALE should be less than 1, and set to:
 *
 * (src width - 1) / ((oversample * dest width) - 1)
 */
# define TV_HSCALE_FRAC_MASK            0x00003fff
# define TV_HSCALE_FRAC_SHIFT           0

#define TV_FILTER_CTL_2         0x68084
/**
 * Sets the integer part of the 3.15 fixed-point vertical scaling factor.
 *
 * TV_VSCALE should be (src height - 1) / ((interlace * dest height) - 1)
 */
# define TV_VSCALE_INT_MASK             0x00038000
# define TV_VSCALE_INT_SHIFT            15
/**
 * Sets the fractional part of the 3.15 fixed-point vertical scaling factor.
 *
 * \sa TV_VSCALE_INT_MASK
 */
# define TV_VSCALE_FRAC_MASK            0x00007fff
# define TV_VSCALE_FRAC_SHIFT           0

#define TV_FILTER_CTL_3         0x68088
/**
 * Sets the integer part of the 3.15 fixed-point vertical scaling factor.
 *
 * TV_VSCALE should be (src height - 1) / (1/4 * (dest height - 1))
 *
 * For progressive modes, TV_VSCALE_IP_INT should be set to zeroes.
 */
# define TV_VSCALE_IP_INT_MASK          0x00038000
# define TV_VSCALE_IP_INT_SHIFT         15
/**
 * Sets the fractional part of the 3.15 fixed-point vertical scaling factor.
 *
 * For progressive modes, TV_VSCALE_IP_INT should be set to zeroes.
 *
 * \sa TV_VSCALE_IP_INT_MASK
 */
# define TV_VSCALE_IP_FRAC_MASK         0x00007fff
# define TV_VSCALE_IP_FRAC_SHIFT                0

#define TV_CC_CONTROL           0x68090
# define TV_CC_ENABLE                   (1 << 31)
/**
 * Specifies which field to send the CC data in.
 *
 * CC data is usually sent in field 0.
 */
# define TV_CC_FID_MASK                 (1 << 27)
# define TV_CC_FID_SHIFT                27
/** Sets the horizontal position of the CC data.  Usually 135. */
# define TV_CC_HOFF_MASK                0x03ff0000
# define TV_CC_HOFF_SHIFT               16
/** Sets the vertical position of the CC data.  Usually 21 */
# define TV_CC_LINE_MASK                0x0000003f
# define TV_CC_LINE_SHIFT               0

#define TV_CC_DATA              0x68094
# define TV_CC_RDY                      (1 << 31)
/** Second word of CC data to be transmitted. */
# define TV_CC_DATA_2_MASK              0x007f0000
# define TV_CC_DATA_2_SHIFT             16
/** First word of CC data to be transmitted. */
# define TV_CC_DATA_1_MASK              0x0000007f
# define TV_CC_DATA_1_SHIFT             0

#define TV_H_LUMA_0             0x68100
#define TV_H_LUMA_59            0x681ec
#define TV_H_CHROMA_0           0x68200
#define TV_H_CHROMA_59          0x682ec
#define TV_V_LUMA_0             0x68300
#define TV_V_LUMA_42            0x683a8
#define TV_V_CHROMA_0           0x68400
#define TV_V_CHROMA_42          0x684a8

/* Display Port */
#define DP_A                            0x64000 /* eDP */
#define DP_B                            0x64100
#define DP_C                            0x64200
#define DP_D                            0x64300

#define   DP_PORT_EN                    (1 << 31)
#define   DP_PIPEB_SELECT               (1 << 30)
#define   DP_PIPE_MASK                  (1 << 30)

/* Link training mode - select a suitable mode for each stage */
#define   DP_LINK_TRAIN_PAT_1           (0 << 28)
#define   DP_LINK_TRAIN_PAT_2           (1 << 28)
#define   DP_LINK_TRAIN_PAT_IDLE        (2 << 28)
#define   DP_LINK_TRAIN_OFF             (3 << 28)
#define   DP_LINK_TRAIN_MASK            (3 << 28)
#define   DP_LINK_TRAIN_SHIFT           28

/* CPT Link training mode */
#define   DP_LINK_TRAIN_PAT_1_CPT       (0 << 8)
#define   DP_LINK_TRAIN_PAT_2_CPT       (1 << 8)
#define   DP_LINK_TRAIN_PAT_IDLE_CPT    (2 << 8)
#define   DP_LINK_TRAIN_OFF_CPT         (3 << 8)
#define   DP_LINK_TRAIN_MASK_CPT        (7 << 8)
#define   DP_LINK_TRAIN_SHIFT_CPT       8

/* Signal voltages. These are mostly controlled by the other end */
#define   DP_VOLTAGE_0_4                (0 << 25)
#define   DP_VOLTAGE_0_6                (1 << 25)
#define   DP_VOLTAGE_0_8                (2 << 25)
#define   DP_VOLTAGE_1_2                (3 << 25)
#define   DP_VOLTAGE_MASK               (7 << 25)
#define   DP_VOLTAGE_SHIFT              25

/* Signal pre-emphasis levels, like voltages, the other end tells us what
 * they want
 */
#define   DP_PRE_EMPHASIS_0             (0 << 22)
#define   DP_PRE_EMPHASIS_3_5           (1 << 22)
#define   DP_PRE_EMPHASIS_6             (2 << 22)
#define   DP_PRE_EMPHASIS_9_5           (3 << 22)
#define   DP_PRE_EMPHASIS_MASK          (7 << 22)
#define   DP_PRE_EMPHASIS_SHIFT         22

/* How many wires to use. I guess 3 was too hard */
#define   DP_PORT_WIDTH_1               (0 << 19)
#define   DP_PORT_WIDTH_2               (1 << 19)
#define   DP_PORT_WIDTH_4               (3 << 19)
#define   DP_PORT_WIDTH_MASK            (7 << 19)

/* Mystic DPCD version 1.1 special mode */
#define   DP_ENHANCED_FRAMING           (1 << 18)

/* eDP */
#define   DP_PLL_FREQ_270MHZ            (0 << 16)
#define   DP_PLL_FREQ_160MHZ            (1 << 16)
#define   DP_PLL_FREQ_MASK              (3 << 16)

/** locked once port is enabled */
#define   DP_PORT_REVERSAL              (1 << 15)

/* eDP */
#define   DP_PLL_ENABLE                 (1 << 14)

/** sends the clock on lane 15 of the PEG for debug */
#define   DP_CLOCK_OUTPUT_ENABLE        (1 << 13)

#define   DP_SCRAMBLING_DISABLE         (1 << 12)
#define   DP_SCRAMBLING_DISABLE_IRONLAKE        (1 << 7)

/** limit RGB values to avoid confusing TVs */
#define   DP_COLOR_RANGE_16_235         (1 << 8)

/** Turn on the audio link */
#define   DP_AUDIO_OUTPUT_ENABLE        (1 << 6)

/** vs and hs sync polarity */
#define   DP_SYNC_VS_HIGH               (1 << 4)
#define   DP_SYNC_HS_HIGH               (1 << 3)

/** A fantasy */
#define   DP_DETECTED                   (1 << 2)

/** The aux channel provides a way to talk to the
 * signal sink for DDC etc. Max packet size supported
 * is 20 bytes in each direction, hence the 5 fixed
 * data registers
 */
#define DPA_AUX_CH_CTL                  0x64010
#define DPA_AUX_CH_DATA1                0x64014
#define DPA_AUX_CH_DATA2                0x64018
#define DPA_AUX_CH_DATA3                0x6401c
#define DPA_AUX_CH_DATA4                0x64020
#define DPA_AUX_CH_DATA5                0x64024

#define DPB_AUX_CH_CTL                  0x64110
#define DPB_AUX_CH_DATA1                0x64114
#define DPB_AUX_CH_DATA2                0x64118
#define DPB_AUX_CH_DATA3                0x6411c
#define DPB_AUX_CH_DATA4                0x64120
#define DPB_AUX_CH_DATA5                0x64124

#define DPC_AUX_CH_CTL                  0x64210
#define DPC_AUX_CH_DATA1                0x64214
#define DPC_AUX_CH_DATA2                0x64218
#define DPC_AUX_CH_DATA3                0x6421c
#define DPC_AUX_CH_DATA4                0x64220
#define DPC_AUX_CH_DATA5                0x64224

#define DPD_AUX_CH_CTL                  0x64310
#define DPD_AUX_CH_DATA1                0x64314
#define DPD_AUX_CH_DATA2                0x64318
#define DPD_AUX_CH_DATA3                0x6431c
#define DPD_AUX_CH_DATA4                0x64320
#define DPD_AUX_CH_DATA5                0x64324

#define   DP_AUX_CH_CTL_SEND_BUSY           (1 << 31)
#define   DP_AUX_CH_CTL_DONE                (1 << 30)
#define   DP_AUX_CH_CTL_INTERRUPT           (1 << 29)
#define   DP_AUX_CH_CTL_TIME_OUT_ERROR      (1 << 28)
#define   DP_AUX_CH_CTL_TIME_OUT_400us      (0 << 26)
#define   DP_AUX_CH_CTL_TIME_OUT_600us      (1 << 26)
#define   DP_AUX_CH_CTL_TIME_OUT_800us      (2 << 26)
#define   DP_AUX_CH_CTL_TIME_OUT_1600us     (3 << 26)
#define   DP_AUX_CH_CTL_TIME_OUT_MASK       (3 << 26)
#define   DP_AUX_CH_CTL_RECEIVE_ERROR       (1 << 25)
#define   DP_AUX_CH_CTL_MESSAGE_SIZE_MASK    (0x1f << 20)
#define   DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT   20
#define   DP_AUX_CH_CTL_PRECHARGE_2US_MASK   (0xf << 16)
#define   DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT  16
#define   DP_AUX_CH_CTL_AUX_AKSV_SELECT     (1 << 15)
#define   DP_AUX_CH_CTL_MANCHESTER_TEST     (1 << 14)
#define   DP_AUX_CH_CTL_SYNC_TEST           (1 << 13)
#define   DP_AUX_CH_CTL_DEGLITCH_TEST       (1 << 12)
#define   DP_AUX_CH_CTL_PRECHARGE_TEST      (1 << 11)
#define   DP_AUX_CH_CTL_BIT_CLOCK_2X_MASK    (0x7ff)
#define   DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT   0

/*
 * Computing GMCH M and N values for the Display Port link
 *
 * GMCH M/N = dot clock * bytes per pixel / ls_clk * # of lanes
 *
 * ls_clk (we assume) is the DP link clock (1.62 or 2.7 GHz)
 *
 * The GMCH value is used internally
 *
 * bytes_per_pixel is the number of bytes coming out of the plane,
 * which is after the LUTs, so we want the bytes for our color format.
 * For our current usage, this is always 3, one byte for R, G and B.
 */
#define _PIPEA_GMCH_DATA_M                      0x70050
#define _PIPEB_GMCH_DATA_M                      0x71050

/* Transfer unit size for display port - 1, default is 0x3f (for TU size 64) */
#define   PIPE_GMCH_DATA_M_TU_SIZE_MASK         (0x3f << 25)
#define   PIPE_GMCH_DATA_M_TU_SIZE_SHIFT        25

#define   PIPE_GMCH_DATA_M_MASK                 (0xffffff)

#define _PIPEA_GMCH_DATA_N                      0x70054
#define _PIPEB_GMCH_DATA_N                      0x71054
#define   PIPE_GMCH_DATA_N_MASK                 (0xffffff)

/*
 * Computing Link M and N values for the Display Port link
 *
 * Link M / N = pixel_clock / ls_clk
 *
 * (the DP spec calls pixel_clock the 'strm_clk')
 *
 * The Link value is transmitted in the Main Stream
 * Attributes and VB-ID.
 */

#define _PIPEA_DP_LINK_M                                0x70060
#define _PIPEB_DP_LINK_M                                0x71060
#define   PIPEA_DP_LINK_M_MASK                  (0xffffff)

#define _PIPEA_DP_LINK_N                                0x70064
#define _PIPEB_DP_LINK_N                                0x71064
#define   PIPEA_DP_LINK_N_MASK                  (0xffffff)

#define PIPE_GMCH_DATA_M(pipe) _PIPE(pipe, _PIPEA_GMCH_DATA_M, _PIPEB_GMCH_DATA_M)
#define PIPE_GMCH_DATA_N(pipe) _PIPE(pipe, _PIPEA_GMCH_DATA_N, _PIPEB_GMCH_DATA_N)
#define PIPE_DP_LINK_M(pipe) _PIPE(pipe, _PIPEA_DP_LINK_M, _PIPEB_DP_LINK_M)
#define PIPE_DP_LINK_N(pipe) _PIPE(pipe, _PIPEA_DP_LINK_N, _PIPEB_DP_LINK_N)

/* Display & cursor control */

/* Pipe A */
#define _PIPEADSL               0x70000
#define   DSL_LINEMASK          0x00000fff
#define _PIPEACONF              0x70008
#define   PIPECONF_ENABLE       (1<<31)
#define   PIPECONF_DISABLE      0
#define   PIPECONF_DOUBLE_WIDE  (1<<30)
#define   I965_PIPECONF_ACTIVE  (1<<30)
#define   PIPECONF_FRAME_START_DELAY_MASK (3<<27)
#define   PIPECONF_SINGLE_WIDE  0
#define   PIPECONF_PIPE_UNLOCKED 0
#define   PIPECONF_PIPE_LOCKED  (1<<25)
#define   PIPECONF_PALETTE      0
#define   PIPECONF_GAMMA                (1<<24)
#define   PIPECONF_FORCE_BORDER (1<<25)
#define   PIPECONF_PROGRESSIVE  (0 << 21)
#define   PIPECONF_INTERLACE_W_FIELD_INDICATION (6 << 21)
#define   PIPECONF_INTERLACE_FIELD_0_ONLY               (7 << 21)
#define   PIPECONF_INTERLACE_MASK       (7 << 21)
#define   PIPECONF_CXSR_DOWNCLOCK       (1<<16)
#define   PIPECONF_BPP_MASK     (0x000000e0)
#define   PIPECONF_BPP_8        (0<<5)
#define   PIPECONF_BPP_10       (1<<5)
#define   PIPECONF_BPP_6        (2<<5)
#define   PIPECONF_BPP_12       (3<<5)
#define   PIPECONF_DITHER_EN    (1<<4)
#define   PIPECONF_DITHER_TYPE_MASK (0x0000000c)
#define   PIPECONF_DITHER_TYPE_SP (0<<2)
#define   PIPECONF_DITHER_TYPE_ST1 (1<<2)
#define   PIPECONF_DITHER_TYPE_ST2 (2<<2)
#define   PIPECONF_DITHER_TYPE_TEMP (3<<2)
#define _PIPEASTAT              0x70024
#define   PIPE_FIFO_UNDERRUN_STATUS             (1UL<<31)
#define   PIPE_CRC_ERROR_ENABLE                 (1UL<<29)
#define   PIPE_CRC_DONE_ENABLE                  (1UL<<28)
#define   PIPE_GMBUS_EVENT_ENABLE               (1UL<<27)
#define   PIPE_HOTPLUG_INTERRUPT_ENABLE         (1UL<<26)
#define   PIPE_VSYNC_INTERRUPT_ENABLE           (1UL<<25)
#define   PIPE_DISPLAY_LINE_COMPARE_ENABLE      (1UL<<24)
#define   PIPE_DPST_EVENT_ENABLE                (1UL<<23)
#define   PIPE_LEGACY_BLC_EVENT_ENABLE          (1UL<<22)
#define   PIPE_ODD_FIELD_INTERRUPT_ENABLE       (1UL<<21)
#define   PIPE_EVEN_FIELD_INTERRUPT_ENABLE      (1UL<<20)
#define   PIPE_HOTPLUG_TV_INTERRUPT_ENABLE      (1UL<<18) /* pre-965 */
#define   PIPE_START_VBLANK_INTERRUPT_ENABLE    (1UL<<18) /* 965 or later */
#define   PIPE_VBLANK_INTERRUPT_ENABLE          (1UL<<17)
#define   PIPE_OVERLAY_UPDATED_ENABLE           (1UL<<16)
#define   PIPE_CRC_ERROR_INTERRUPT_STATUS       (1UL<<13)
#define   PIPE_CRC_DONE_INTERRUPT_STATUS        (1UL<<12)
#define   PIPE_GMBUS_INTERRUPT_STATUS           (1UL<<11)
#define   PIPE_HOTPLUG_INTERRUPT_STATUS         (1UL<<10)
#define   PIPE_VSYNC_INTERRUPT_STATUS           (1UL<<9)
#define   PIPE_DISPLAY_LINE_COMPARE_STATUS      (1UL<<8)
#define   PIPE_DPST_EVENT_STATUS                (1UL<<7)
#define   PIPE_LEGACY_BLC_EVENT_STATUS          (1UL<<6)
#define   PIPE_ODD_FIELD_INTERRUPT_STATUS       (1UL<<5)
#define   PIPE_EVEN_FIELD_INTERRUPT_STATUS      (1UL<<4)
#define   PIPE_HOTPLUG_TV_INTERRUPT_STATUS      (1UL<<2) /* pre-965 */
#define   PIPE_START_VBLANK_INTERRUPT_STATUS    (1UL<<2) /* 965 or later */
#define   PIPE_VBLANK_INTERRUPT_STATUS          (1UL<<1)
#define   PIPE_OVERLAY_UPDATED_STATUS           (1UL<<0)
#define   PIPE_BPC_MASK                         (7 << 5) /* Ironlake */
#define   PIPE_8BPC                             (0 << 5)
#define   PIPE_10BPC                            (1 << 5)
#define   PIPE_6BPC                             (2 << 5)
#define   PIPE_12BPC                            (3 << 5)

#define PIPESRC(pipe) _PIPE(pipe, _PIPEASRC, _PIPEBSRC)
#define PIPECONF(pipe) _PIPE(pipe, _PIPEACONF, _PIPEBCONF)
#define PIPEDSL(pipe)  _PIPE(pipe, _PIPEADSL, _PIPEBDSL)
#define PIPEFRAME(pipe) _PIPE(pipe, _PIPEAFRAMEHIGH, _PIPEBFRAMEHIGH)
#define PIPEFRAMEPIXEL(pipe)  _PIPE(pipe, _PIPEAFRAMEPIXEL, _PIPEBFRAMEPIXEL)
#define PIPESTAT(pipe) _PIPE(pipe, _PIPEASTAT, _PIPEBSTAT)

#define DSPARB                  0x70030
#define   DSPARB_CSTART_MASK    (0x7f << 7)
#define   DSPARB_CSTART_SHIFT   7
#define   DSPARB_BSTART_MASK    (0x7f)
#define   DSPARB_BSTART_SHIFT   0
#define   DSPARB_BEND_SHIFT     9 /* on 855 */
#define   DSPARB_AEND_SHIFT     0

#define DSPFW1                  0x70034
#define   DSPFW_SR_SHIFT        23
#define   DSPFW_SR_MASK         (0x1ff<<23)
#define   DSPFW_CURSORB_SHIFT   16
#define   DSPFW_CURSORB_MASK    (0x3f<<16)
#define   DSPFW_PLANEB_SHIFT    8
#define   DSPFW_PLANEB_MASK     (0x7f<<8)
#define   DSPFW_PLANEA_MASK     (0x7f)
#define DSPFW2                  0x70038
#define   DSPFW_CURSORA_MASK    0x00003f00
#define   DSPFW_CURSORA_SHIFT   8
#define   DSPFW_PLANEC_MASK     (0x7f)
#define DSPFW3                  0x7003c
#define   DSPFW_HPLL_SR_EN      (1<<31)
#define   DSPFW_CURSOR_SR_SHIFT 24
#define   PINEVIEW_SELF_REFRESH_EN      (1<<30)
#define   DSPFW_CURSOR_SR_MASK          (0x3f<<24)
#define   DSPFW_HPLL_CURSOR_SHIFT       16
#define   DSPFW_HPLL_CURSOR_MASK        (0x3f<<16)
#define   DSPFW_HPLL_SR_MASK            (0x1ff)

/* FIFO watermark sizes etc */
#define G4X_FIFO_LINE_SIZE      64
#define I915_FIFO_LINE_SIZE     64
#define I830_FIFO_LINE_SIZE     32

#define G4X_FIFO_SIZE           127
#define I965_FIFO_SIZE          512
#define I945_FIFO_SIZE          127
#define I915_FIFO_SIZE          95
#define I855GM_FIFO_SIZE        127 /* In cachelines */
#define I830_FIFO_SIZE          95

#define G4X_MAX_WM              0x3f
#define I915_MAX_WM             0x3f

#define PINEVIEW_DISPLAY_FIFO   512 /* in 64byte unit */
#define PINEVIEW_FIFO_LINE_SIZE 64
#define PINEVIEW_MAX_WM         0x1ff
#define PINEVIEW_DFT_WM         0x3f
#define PINEVIEW_DFT_HPLLOFF_WM 0
#define PINEVIEW_GUARD_WM               10
#define PINEVIEW_CURSOR_FIFO            64
#define PINEVIEW_CURSOR_MAX_WM  0x3f
#define PINEVIEW_CURSOR_DFT_WM  0
#define PINEVIEW_CURSOR_GUARD_WM        5

#define I965_CURSOR_FIFO        64
#define I965_CURSOR_MAX_WM      32
#define I965_CURSOR_DFT_WM      8

/* define the Watermark register on Ironlake */
#define WM0_PIPEA_ILK           0x45100
#define  WM0_PIPE_PLANE_MASK    (0x7f<<16)
#define  WM0_PIPE_PLANE_SHIFT   16
#define  WM0_PIPE_SPRITE_MASK   (0x3f<<8)
#define  WM0_PIPE_SPRITE_SHIFT  8
#define  WM0_PIPE_CURSOR_MASK   (0x1f)

#define WM0_PIPEB_ILK           0x45104
#define WM0_PIPEC_IVB           0x45200
#define WM1_LP_ILK              0x45108
#define  WM1_LP_SR_EN           (1<<31)
#define  WM1_LP_LATENCY_SHIFT   24
#define  WM1_LP_LATENCY_MASK    (0x7f<<24)
#define  WM1_LP_FBC_MASK        (0xf<<20)
#define  WM1_LP_FBC_SHIFT       20
#define  WM1_LP_SR_MASK         (0x1ff<<8)
#define  WM1_LP_SR_SHIFT        8
#define  WM1_LP_CURSOR_MASK     (0x3f)
#define WM2_LP_ILK              0x4510c
#define  WM2_LP_EN              (1<<31)
#define WM3_LP_ILK              0x45110
#define  WM3_LP_EN              (1<<31)
#define WM1S_LP_ILK             0x45120
#define WM2S_LP_IVB             0x45124
#define WM3S_LP_IVB             0x45128
#define  WM1S_LP_EN             (1<<31)

/* Memory latency timer register */
#define MLTR_ILK                0x11222
#define  MLTR_WM1_SHIFT         0
#define  MLTR_WM2_SHIFT         8
/* the unit of memory self-refresh latency time is 0.5us */
#define  ILK_SRLT_MASK          0x3f
#define ILK_LATENCY(shift)      (I915_READ(MLTR_ILK) >> (shift) & ILK_SRLT_MASK)
#define ILK_READ_WM1_LATENCY()  ILK_LATENCY(MLTR_WM1_SHIFT)
#define ILK_READ_WM2_LATENCY()  ILK_LATENCY(MLTR_WM2_SHIFT)

/* define the fifo size on Ironlake */
#define ILK_DISPLAY_FIFO        128
#define ILK_DISPLAY_MAXWM       64
#define ILK_DISPLAY_DFTWM       8
#define ILK_CURSOR_FIFO         32
#define ILK_CURSOR_MAXWM        16
#define ILK_CURSOR_DFTWM        8

#define ILK_DISPLAY_SR_FIFO     512
#define ILK_DISPLAY_MAX_SRWM    0x1ff
#define ILK_DISPLAY_DFT_SRWM    0x3f
#define ILK_CURSOR_SR_FIFO      64
#define ILK_CURSOR_MAX_SRWM     0x3f
#define ILK_CURSOR_DFT_SRWM     8

#define ILK_FIFO_LINE_SIZE      64

/* define the WM info on Sandybridge */
#define SNB_DISPLAY_FIFO        128
#define SNB_DISPLAY_MAXWM       0x7f    /* bit 16:22 */
#define SNB_DISPLAY_DFTWM       8
#define SNB_CURSOR_FIFO         32
#define SNB_CURSOR_MAXWM        0x1f    /* bit 4:0 */
#define SNB_CURSOR_DFTWM        8

#define SNB_DISPLAY_SR_FIFO     512
#define SNB_DISPLAY_MAX_SRWM    0x1ff   /* bit 16:8 */
#define SNB_DISPLAY_DFT_SRWM    0x3f
#define SNB_CURSOR_SR_FIFO      64
#define SNB_CURSOR_MAX_SRWM     0x3f    /* bit 5:0 */
#define SNB_CURSOR_DFT_SRWM     8

#define SNB_FBC_MAX_SRWM        0xf     /* bit 23:20 */

#define SNB_FIFO_LINE_SIZE      64


/* the address where we get all kinds of latency value */
#define SSKPD                   0x5d10
#define SSKPD_WM_MASK           0x3f
#define SSKPD_WM0_SHIFT         0
#define SSKPD_WM1_SHIFT         8
#define SSKPD_WM2_SHIFT         16
#define SSKPD_WM3_SHIFT         24

#define SNB_LATENCY(shift)      (I915_READ(MCHBAR_MIRROR_BASE_SNB + SSKPD) >> (shift) & SSKPD_WM_MASK)
#define SNB_READ_WM0_LATENCY()          SNB_LATENCY(SSKPD_WM0_SHIFT)
#define SNB_READ_WM1_LATENCY()          SNB_LATENCY(SSKPD_WM1_SHIFT)
#define SNB_READ_WM2_LATENCY()          SNB_LATENCY(SSKPD_WM2_SHIFT)
#define SNB_READ_WM3_LATENCY()          SNB_LATENCY(SSKPD_WM3_SHIFT)

/*
 * The two pipe frame counter registers are not synchronized, so
 * reading a stable value is somewhat tricky. The following code
 * should work:
 *
 *  do {
 *    high1 = ((INREG(PIPEAFRAMEHIGH) & PIPE_FRAME_HIGH_MASK) >>
 *             PIPE_FRAME_HIGH_SHIFT;
 *    low1 =  ((INREG(PIPEAFRAMEPIXEL) & PIPE_FRAME_LOW_MASK) >>
 *             PIPE_FRAME_LOW_SHIFT);
 *    high2 = ((INREG(PIPEAFRAMEHIGH) & PIPE_FRAME_HIGH_MASK) >>
 *             PIPE_FRAME_HIGH_SHIFT);
 *  } while (high1 != high2);
 *  frame = (high1 << 8) | low1;
 */
#define _PIPEAFRAMEHIGH          0x70040
#define   PIPE_FRAME_HIGH_MASK    0x0000ffff
#define   PIPE_FRAME_HIGH_SHIFT   0
#define _PIPEAFRAMEPIXEL         0x70044
#define   PIPE_FRAME_LOW_MASK     0xff000000
#define   PIPE_FRAME_LOW_SHIFT    24
#define   PIPE_PIXEL_MASK         0x00ffffff
#define   PIPE_PIXEL_SHIFT        0
/* GM45+ just has to be different */
#define _PIPEA_FRMCOUNT_GM45    0x70040
#define _PIPEA_FLIPCOUNT_GM45   0x70044
#define PIPE_FRMCOUNT_GM45(pipe) _PIPE(pipe, _PIPEA_FRMCOUNT_GM45, _PIPEB_FRMCOUNT_GM45)

/* Cursor A & B regs */
#define _CURACNTR               0x70080
/* Old style CUR*CNTR flags (desktop 8xx) */
#define   CURSOR_ENABLE         0x80000000
#define   CURSOR_GAMMA_ENABLE   0x40000000
#define   CURSOR_STRIDE_MASK    0x30000000
#define   CURSOR_FORMAT_SHIFT   24
#define   CURSOR_FORMAT_MASK    (0x07 << CURSOR_FORMAT_SHIFT)
#define   CURSOR_FORMAT_2C      (0x00 << CURSOR_FORMAT_SHIFT)
#define   CURSOR_FORMAT_3C      (0x01 << CURSOR_FORMAT_SHIFT)
#define   CURSOR_FORMAT_4C      (0x02 << CURSOR_FORMAT_SHIFT)
#define   CURSOR_FORMAT_ARGB    (0x04 << CURSOR_FORMAT_SHIFT)
#define   CURSOR_FORMAT_XRGB    (0x05 << CURSOR_FORMAT_SHIFT)
/* New style CUR*CNTR flags */
#define   CURSOR_MODE           0x27
#define   CURSOR_MODE_DISABLE   0x00
#define   CURSOR_MODE_64_32B_AX 0x07
#define   CURSOR_MODE_64_ARGB_AX ((1 << 5) | CURSOR_MODE_64_32B_AX)
#define   MCURSOR_PIPE_SELECT   (1 << 28)
#define   MCURSOR_PIPE_A        0x00
#define   MCURSOR_PIPE_B        (1 << 28)
#define   MCURSOR_GAMMA_ENABLE  (1 << 26)
#define _CURABASE               0x70084
#define _CURAPOS                        0x70088
#define   CURSOR_POS_MASK       0x007FF
#define   CURSOR_POS_SIGN       0x8000
#define   CURSOR_X_SHIFT        0
#define   CURSOR_Y_SHIFT        16
#define CURSIZE                 0x700a0
#define _CURBCNTR               0x700c0
#define _CURBBASE               0x700c4
#define _CURBPOS                        0x700c8

#define _CURBCNTR_IVB           0x71080
#define _CURBBASE_IVB           0x71084
#define _CURBPOS_IVB            0x71088

#define CURCNTR(pipe) _PIPE(pipe, _CURACNTR, _CURBCNTR)
#define CURBASE(pipe) _PIPE(pipe, _CURABASE, _CURBBASE)
#define CURPOS(pipe) _PIPE(pipe, _CURAPOS, _CURBPOS)

#define CURCNTR_IVB(pipe) _PIPE(pipe, _CURACNTR, _CURBCNTR_IVB)
#define CURBASE_IVB(pipe) _PIPE(pipe, _CURABASE, _CURBBASE_IVB)
#define CURPOS_IVB(pipe) _PIPE(pipe, _CURAPOS, _CURBPOS_IVB)

/* Display A control */
#define _DSPACNTR                0x70180
#define   DISPLAY_PLANE_ENABLE                  (1<<31)
#define   DISPLAY_PLANE_DISABLE                 0
#define   DISPPLANE_GAMMA_ENABLE                (1<<30)
#define   DISPPLANE_GAMMA_DISABLE               0
#define   DISPPLANE_PIXFORMAT_MASK              (0xf<<26)
#define   DISPPLANE_8BPP                        (0x2<<26)
#define   DISPPLANE_15_16BPP                    (0x4<<26)
#define   DISPPLANE_16BPP                       (0x5<<26)
#define   DISPPLANE_32BPP_NO_ALPHA              (0x6<<26)
#define   DISPPLANE_32BPP                       (0x7<<26)
#define   DISPPLANE_32BPP_30BIT_NO_ALPHA        (0xa<<26)
#define   DISPPLANE_STEREO_ENABLE               (1<<25)
#define   DISPPLANE_STEREO_DISABLE              0
#define   DISPPLANE_SEL_PIPE_SHIFT              24
#define   DISPPLANE_SEL_PIPE_MASK               (3<<DISPPLANE_SEL_PIPE_SHIFT)
#define   DISPPLANE_SEL_PIPE_A                  0
#define   DISPPLANE_SEL_PIPE_B                  (1<<DISPPLANE_SEL_PIPE_SHIFT)
#define   DISPPLANE_SRC_KEY_ENABLE              (1<<22)
#define   DISPPLANE_SRC_KEY_DISABLE             0
#define   DISPPLANE_LINE_DOUBLE                 (1<<20)
#define   DISPPLANE_NO_LINE_DOUBLE              0
#define   DISPPLANE_STEREO_POLARITY_FIRST       0
#define   DISPPLANE_STEREO_POLARITY_SECOND      (1<<18)
#define   DISPPLANE_TRICKLE_FEED_DISABLE        (1<<14) /* Ironlake */
#define   DISPPLANE_TILED                       (1<<10)
#define _DSPAADDR               0x70184
#define _DSPASTRIDE             0x70188
#define _DSPAPOS                        0x7018C /* reserved */
#define _DSPASIZE               0x70190
#define _DSPASURF               0x7019C /* 965+ only */
#define _DSPATILEOFF            0x701A4 /* 965+ only */

#define DSPCNTR(plane) _PIPE(plane, _DSPACNTR, _DSPBCNTR)
#define DSPADDR(plane) _PIPE(plane, _DSPAADDR, _DSPBADDR)
#define DSPSTRIDE(plane) _PIPE(plane, _DSPASTRIDE, _DSPBSTRIDE)
#define DSPPOS(plane) _PIPE(plane, _DSPAPOS, _DSPBPOS)
#define DSPSIZE(plane) _PIPE(plane, _DSPASIZE, _DSPBSIZE)
#define DSPSURF(plane) _PIPE(plane, _DSPASURF, _DSPBSURF)
#define DSPTILEOFF(plane) _PIPE(plane, _DSPATILEOFF, _DSPBTILEOFF)

/* VBIOS flags */
#define SWF00                   0x71410
#define SWF01                   0x71414
#define SWF02                   0x71418
#define SWF03                   0x7141c
#define SWF04                   0x71420
#define SWF05                   0x71424
#define SWF06                   0x71428
#define SWF10                   0x70410
#define SWF11                   0x70414
#define SWF14                   0x71420
#define SWF30                   0x72414
#define SWF31                   0x72418
#define SWF32                   0x7241c

/* Pipe B */
#define _PIPEBDSL               0x71000
#define _PIPEBCONF              0x71008
#define _PIPEBSTAT              0x71024
#define _PIPEBFRAMEHIGH         0x71040
#define _PIPEBFRAMEPIXEL                0x71044
#define _PIPEB_FRMCOUNT_GM45    0x71040
#define _PIPEB_FLIPCOUNT_GM45   0x71044


/* Display B control */
#define _DSPBCNTR               0x71180
#define   DISPPLANE_ALPHA_TRANS_ENABLE          (1<<15)
#define   DISPPLANE_ALPHA_TRANS_DISABLE         0
#define   DISPPLANE_SPRITE_ABOVE_DISPLAY        0
#define   DISPPLANE_SPRITE_ABOVE_OVERLAY        (1)
#define _DSPBADDR               0x71184
#define _DSPBSTRIDE             0x71188
#define _DSPBPOS                        0x7118C
#define _DSPBSIZE               0x71190
#define _DSPBSURF               0x7119C
#define _DSPBTILEOFF            0x711A4

/* Sprite A control */
#define _DVSACNTR               0x72180
#define   DVS_ENABLE            (1<<31)
#define   DVS_GAMMA_ENABLE      (1<<30)
#define   DVS_PIXFORMAT_MASK    (3<<25)
#define   DVS_FORMAT_YUV422     (0<<25)
#define   DVS_FORMAT_RGBX101010 (1<<25)
#define   DVS_FORMAT_RGBX888    (2<<25)
#define   DVS_FORMAT_RGBX161616 (3<<25)
#define   DVS_SOURCE_KEY        (1<<22)
#define   DVS_RGB_ORDER_XBGR    (1<<20)
#define   DVS_YUV_BYTE_ORDER_MASK (3<<16)
#define   DVS_YUV_ORDER_YUYV    (0<<16)
#define   DVS_YUV_ORDER_UYVY    (1<<16)
#define   DVS_YUV_ORDER_YVYU    (2<<16)
#define   DVS_YUV_ORDER_VYUY    (3<<16)
#define   DVS_DEST_KEY          (1<<2)
#define   DVS_TRICKLE_FEED_DISABLE (1<<14)
#define   DVS_TILED             (1<<10)
#define _DVSALINOFF             0x72184
#define _DVSASTRIDE             0x72188
#define _DVSAPOS                0x7218c
#define _DVSASIZE               0x72190
#define _DVSAKEYVAL             0x72194
#define _DVSAKEYMSK             0x72198
#define _DVSASURF               0x7219c
#define _DVSAKEYMAXVAL          0x721a0
#define _DVSATILEOFF            0x721a4
#define _DVSASURFLIVE           0x721ac
#define _DVSASCALE              0x72204
#define   DVS_SCALE_ENABLE      (1<<31)
#define   DVS_FILTER_MASK       (3<<29)
#define   DVS_FILTER_MEDIUM     (0<<29)
#define   DVS_FILTER_ENHANCING  (1<<29)
#define   DVS_FILTER_SOFTENING  (2<<29)
#define   DVS_VERTICAL_OFFSET_HALF (1<<28) /* must be enabled below */
#define   DVS_VERTICAL_OFFSET_ENABLE (1<<27)
#define _DVSAGAMC               0x72300

#define _DVSBCNTR               0x73180
#define _DVSBLINOFF             0x73184
#define _DVSBSTRIDE             0x73188
#define _DVSBPOS                0x7318c
#define _DVSBSIZE               0x73190
#define _DVSBKEYVAL             0x73194
#define _DVSBKEYMSK             0x73198
#define _DVSBSURF               0x7319c
#define _DVSBKEYMAXVAL          0x731a0
#define _DVSBTILEOFF            0x731a4
#define _DVSBSURFLIVE           0x731ac
#define _DVSBSCALE              0x73204
#define _DVSBGAMC               0x73300

#define DVSCNTR(pipe) _PIPE(pipe, _DVSACNTR, _DVSBCNTR)
#define DVSLINOFF(pipe) _PIPE(pipe, _DVSALINOFF, _DVSBLINOFF)
#define DVSSTRIDE(pipe) _PIPE(pipe, _DVSASTRIDE, _DVSBSTRIDE)
#define DVSPOS(pipe) _PIPE(pipe, _DVSAPOS, _DVSBPOS)
#define DVSSURF(pipe) _PIPE(pipe, _DVSASURF, _DVSBSURF)
#define DVSKEYMAX(pipe) _PIPE(pipe, _DVSAKEYMAXVAL, _DVSBKEYMAXVAL)
#define DVSSIZE(pipe) _PIPE(pipe, _DVSASIZE, _DVSBSIZE)
#define DVSSCALE(pipe) _PIPE(pipe, _DVSASCALE, _DVSBSCALE)
#define DVSTILEOFF(pipe) _PIPE(pipe, _DVSATILEOFF, _DVSBTILEOFF)
#define DVSKEYVAL(pipe) _PIPE(pipe, _DVSAKEYVAL, _DVSBKEYVAL)
#define DVSKEYMSK(pipe) _PIPE(pipe, _DVSAKEYMSK, _DVSBKEYMSK)

#define _SPRA_CTL               0x70280
#define   SPRITE_ENABLE                 (1<<31)
#define   SPRITE_GAMMA_ENABLE           (1<<30)
#define   SPRITE_PIXFORMAT_MASK         (7<<25)
#define   SPRITE_FORMAT_YUV422          (0<<25)
#define   SPRITE_FORMAT_RGBX101010      (1<<25)
#define   SPRITE_FORMAT_RGBX888         (2<<25)
#define   SPRITE_FORMAT_RGBX161616      (3<<25)
#define   SPRITE_FORMAT_YUV444          (4<<25)
#define   SPRITE_FORMAT_XR_BGR101010    (5<<25) /* Extended range */
#define   SPRITE_CSC_ENABLE             (1<<24)
#define   SPRITE_SOURCE_KEY             (1<<22)
#define   SPRITE_RGB_ORDER_RGBX         (1<<20) /* only for 888 and 161616 */
#define   SPRITE_YUV_TO_RGB_CSC_DISABLE (1<<19)
#define   SPRITE_YUV_CSC_FORMAT_BT709   (1<<18) /* 0 is BT601 */
#define   SPRITE_YUV_BYTE_ORDER_MASK    (3<<16)
#define   SPRITE_YUV_ORDER_YUYV         (0<<16)
#define   SPRITE_YUV_ORDER_UYVY         (1<<16)
#define   SPRITE_YUV_ORDER_YVYU         (2<<16)
#define   SPRITE_YUV_ORDER_VYUY         (3<<16)
#define   SPRITE_TRICKLE_FEED_DISABLE   (1<<14)
#define   SPRITE_INT_GAMMA_ENABLE       (1<<13)
#define   SPRITE_TILED                  (1<<10)
#define   SPRITE_DEST_KEY               (1<<2)
#define _SPRA_LINOFF            0x70284
#define _SPRA_STRIDE            0x70288
#define _SPRA_POS               0x7028c
#define _SPRA_SIZE              0x70290
#define _SPRA_KEYVAL            0x70294
#define _SPRA_KEYMSK            0x70298
#define _SPRA_SURF              0x7029c
#define _SPRA_KEYMAX            0x702a0
#define _SPRA_TILEOFF           0x702a4
#define _SPRA_SCALE             0x70304
#define   SPRITE_SCALE_ENABLE   (1<<31)
#define   SPRITE_FILTER_MASK    (3<<29)
#define   SPRITE_FILTER_MEDIUM  (0<<29)
#define   SPRITE_FILTER_ENHANCING       (1<<29)
#define   SPRITE_FILTER_SOFTENING       (2<<29)
#define   SPRITE_VERTICAL_OFFSET_HALF   (1<<28) /* must be enabled below */
#define   SPRITE_VERTICAL_OFFSET_ENABLE (1<<27)
#define _SPRA_GAMC              0x70400

#define _SPRB_CTL               0x71280
#define _SPRB_LINOFF            0x71284
#define _SPRB_STRIDE            0x71288
#define _SPRB_POS               0x7128c
#define _SPRB_SIZE              0x71290
#define _SPRB_KEYVAL            0x71294
#define _SPRB_KEYMSK            0x71298
#define _SPRB_SURF              0x7129c
#define _SPRB_KEYMAX            0x712a0
#define _SPRB_TILEOFF           0x712a4
#define _SPRB_SCALE             0x71304
#define _SPRB_GAMC              0x71400

#define SPRCTL(pipe) _PIPE(pipe, _SPRA_CTL, _SPRB_CTL)
#define SPRLINOFF(pipe) _PIPE(pipe, _SPRA_LINOFF, _SPRB_LINOFF)
#define SPRSTRIDE(pipe) _PIPE(pipe, _SPRA_STRIDE, _SPRB_STRIDE)
#define SPRPOS(pipe) _PIPE(pipe, _SPRA_POS, _SPRB_POS)
#define SPRSIZE(pipe) _PIPE(pipe, _SPRA_SIZE, _SPRB_SIZE)
#define SPRKEYVAL(pipe) _PIPE(pipe, _SPRA_KEYVAL, _SPRB_KEYVAL)
#define SPRKEYMSK(pipe) _PIPE(pipe, _SPRA_KEYMSK, _SPRB_KEYMSK)
#define SPRSURF(pipe) _PIPE(pipe, _SPRA_SURF, _SPRB_SURF)
#define SPRKEYMAX(pipe) _PIPE(pipe, _SPRA_KEYMAX, _SPRB_KEYMAX)
#define SPRTILEOFF(pipe) _PIPE(pipe, _SPRA_TILEOFF, _SPRB_TILEOFF)
#define SPRSCALE(pipe) _PIPE(pipe, _SPRA_SCALE, _SPRB_SCALE)
#define SPRGAMC(pipe) _PIPE(pipe, _SPRA_GAMC, _SPRB_GAMC)

/* VBIOS regs */
#define VGACNTRL                0x71400
# define VGA_DISP_DISABLE                       (1 << 31)
# define VGA_2X_MODE                            (1 << 30)
# define VGA_PIPE_B_SELECT                      (1 << 29)

/* Ironlake */

#define CPU_VGACNTRL    0x41000

#define DIGITAL_PORT_HOTPLUG_CNTRL      0x44030
#define  DIGITAL_PORTA_HOTPLUG_ENABLE           (1 << 4)
#define  DIGITAL_PORTA_SHORT_PULSE_2MS          (0 << 2)
#define  DIGITAL_PORTA_SHORT_PULSE_4_5MS        (1 << 2)
#define  DIGITAL_PORTA_SHORT_PULSE_6MS          (2 << 2)
#define  DIGITAL_PORTA_SHORT_PULSE_100MS        (3 << 2)
#define  DIGITAL_PORTA_NO_DETECT                (0 << 0)
#define  DIGITAL_PORTA_LONG_PULSE_DETECT_MASK   (1 << 1)
#define  DIGITAL_PORTA_SHORT_PULSE_DETECT_MASK  (1 << 0)

/* refresh rate hardware control */
#define RR_HW_CTL       0x45300
#define  RR_HW_LOW_POWER_FRAMES_MASK    0xff
#define  RR_HW_HIGH_POWER_FRAMES_MASK   0xff00

#define FDI_PLL_BIOS_0  0x46000
#define  FDI_PLL_FB_CLOCK_MASK  0xff
#define FDI_PLL_BIOS_1  0x46004
#define FDI_PLL_BIOS_2  0x46008
#define DISPLAY_PORT_PLL_BIOS_0         0x4600c
#define DISPLAY_PORT_PLL_BIOS_1         0x46010
#define DISPLAY_PORT_PLL_BIOS_2         0x46014

#define PCH_DSPCLK_GATE_D       0x42020
# define DPFCUNIT_CLOCK_GATE_DISABLE            (1 << 9)
# define DPFCRUNIT_CLOCK_GATE_DISABLE           (1 << 8)
# define DPFDUNIT_CLOCK_GATE_DISABLE            (1 << 7)
# define DPARBUNIT_CLOCK_GATE_DISABLE           (1 << 5)

#define PCH_3DCGDIS0            0x46020
# define MARIUNIT_CLOCK_GATE_DISABLE            (1 << 18)
# define SVSMUNIT_CLOCK_GATE_DISABLE            (1 << 1)

#define PCH_3DCGDIS1            0x46024
# define VFMUNIT_CLOCK_GATE_DISABLE             (1 << 11)

#define FDI_PLL_FREQ_CTL        0x46030
#define  FDI_PLL_FREQ_CHANGE_REQUEST    (1<<24)
#define  FDI_PLL_FREQ_LOCK_LIMIT_MASK   0xfff00
#define  FDI_PLL_FREQ_DISABLE_COUNT_LIMIT_MASK  0xff


#define _PIPEA_DATA_M1           0x60030
#define  TU_SIZE(x)             (((x)-1) << 25) /* default size 64 */
#define  TU_SIZE_MASK           0x7e000000
#define  PIPE_DATA_M1_OFFSET    0
#define _PIPEA_DATA_N1           0x60034
#define  PIPE_DATA_N1_OFFSET    0

#define _PIPEA_DATA_M2           0x60038
#define  PIPE_DATA_M2_OFFSET    0
#define _PIPEA_DATA_N2           0x6003c
#define  PIPE_DATA_N2_OFFSET    0

#define _PIPEA_LINK_M1           0x60040
#define  PIPE_LINK_M1_OFFSET    0
#define _PIPEA_LINK_N1           0x60044
#define  PIPE_LINK_N1_OFFSET    0

#define _PIPEA_LINK_M2           0x60048
#define  PIPE_LINK_M2_OFFSET    0
#define _PIPEA_LINK_N2           0x6004c
#define  PIPE_LINK_N2_OFFSET    0

/* PIPEB timing regs are same start from 0x61000 */

#define _PIPEB_DATA_M1           0x61030
#define _PIPEB_DATA_N1           0x61034

#define _PIPEB_DATA_M2           0x61038
#define _PIPEB_DATA_N2           0x6103c

#define _PIPEB_LINK_M1           0x61040
#define _PIPEB_LINK_N1           0x61044

#define _PIPEB_LINK_M2           0x61048
#define _PIPEB_LINK_N2           0x6104c

#define PIPE_DATA_M1(pipe) _PIPE(pipe, _PIPEA_DATA_M1, _PIPEB_DATA_M1)
#define PIPE_DATA_N1(pipe) _PIPE(pipe, _PIPEA_DATA_N1, _PIPEB_DATA_N1)
#define PIPE_DATA_M2(pipe) _PIPE(pipe, _PIPEA_DATA_M2, _PIPEB_DATA_M2)
#define PIPE_DATA_N2(pipe) _PIPE(pipe, _PIPEA_DATA_N2, _PIPEB_DATA_N2)
#define PIPE_LINK_M1(pipe) _PIPE(pipe, _PIPEA_LINK_M1, _PIPEB_LINK_M1)
#define PIPE_LINK_N1(pipe) _PIPE(pipe, _PIPEA_LINK_N1, _PIPEB_LINK_N1)
#define PIPE_LINK_M2(pipe) _PIPE(pipe, _PIPEA_LINK_M2, _PIPEB_LINK_M2)
#define PIPE_LINK_N2(pipe) _PIPE(pipe, _PIPEA_LINK_N2, _PIPEB_LINK_N2)

/* CPU panel fitter */
/* IVB+ has 3 fitters, 0 is 7x5 capable, the other two only 3x3 */
#define _PFA_CTL_1               0x68080
#define _PFB_CTL_1               0x68880
#define  PF_ENABLE              (1<<31)
#define  PF_FILTER_MASK         (3<<23)
#define  PF_FILTER_PROGRAMMED   (0<<23)
#define  PF_FILTER_MED_3x3      (1<<23)
#define  PF_FILTER_EDGE_ENHANCE (2<<23)
#define  PF_FILTER_EDGE_SOFTEN  (3<<23)
#define _PFA_WIN_SZ             0x68074
#define _PFB_WIN_SZ             0x68874
#define _PFA_WIN_POS            0x68070
#define _PFB_WIN_POS            0x68870
#define _PFA_VSCALE             0x68084
#define _PFB_VSCALE             0x68884
#define _PFA_HSCALE             0x68090
#define _PFB_HSCALE             0x68890

#define PF_CTL(pipe)            _PIPE(pipe, _PFA_CTL_1, _PFB_CTL_1)
#define PF_WIN_SZ(pipe)         _PIPE(pipe, _PFA_WIN_SZ, _PFB_WIN_SZ)
#define PF_WIN_POS(pipe)        _PIPE(pipe, _PFA_WIN_POS, _PFB_WIN_POS)
#define PF_VSCALE(pipe)         _PIPE(pipe, _PFA_VSCALE, _PFB_VSCALE)
#define PF_HSCALE(pipe)         _PIPE(pipe, _PFA_HSCALE, _PFB_HSCALE)

/* legacy palette */
#define _LGC_PALETTE_A           0x4a000
#define _LGC_PALETTE_B           0x4a800
#define LGC_PALETTE(pipe) _PIPE(pipe, _LGC_PALETTE_A, _LGC_PALETTE_B)

/* interrupts */
#define DE_MASTER_IRQ_CONTROL   (1 << 31)
#define DE_SPRITEB_FLIP_DONE    (1 << 29)
#define DE_SPRITEA_FLIP_DONE    (1 << 28)
#define DE_PLANEB_FLIP_DONE     (1 << 27)
#define DE_PLANEA_FLIP_DONE     (1 << 26)
#define DE_PCU_EVENT            (1 << 25)
#define DE_GTT_FAULT            (1 << 24)
#define DE_POISON               (1 << 23)
#define DE_PERFORM_COUNTER      (1 << 22)
#define DE_PCH_EVENT            (1 << 21)
#define DE_AUX_CHANNEL_A        (1 << 20)
#define DE_DP_A_HOTPLUG         (1 << 19)
#define DE_GSE                  (1 << 18)
#define DE_PIPEB_VBLANK         (1 << 15)
#define DE_PIPEB_EVEN_FIELD     (1 << 14)
#define DE_PIPEB_ODD_FIELD      (1 << 13)
#define DE_PIPEB_LINE_COMPARE   (1 << 12)
#define DE_PIPEB_VSYNC          (1 << 11)
#define DE_PIPEB_FIFO_UNDERRUN  (1 << 8)
#define DE_PIPEA_VBLANK         (1 << 7)
#define DE_PIPEA_EVEN_FIELD     (1 << 6)
#define DE_PIPEA_ODD_FIELD      (1 << 5)
#define DE_PIPEA_LINE_COMPARE   (1 << 4)
#define DE_PIPEA_VSYNC          (1 << 3)
#define DE_PIPEA_FIFO_UNDERRUN  (1 << 0)

/* More Ivybridge lolz */
#define DE_ERR_DEBUG_IVB                (1<<30)
#define DE_GSE_IVB                      (1<<29)
#define DE_PCH_EVENT_IVB                (1<<28)
#define DE_DP_A_HOTPLUG_IVB             (1<<27)
#define DE_AUX_CHANNEL_A_IVB            (1<<26)
#define DE_SPRITEB_FLIP_DONE_IVB        (1<<9)
#define DE_SPRITEA_FLIP_DONE_IVB        (1<<4)
#define DE_PLANEB_FLIP_DONE_IVB         (1<<8)
#define DE_PLANEA_FLIP_DONE_IVB         (1<<3)
#define DE_PIPEB_VBLANK_IVB             (1<<5)
#define DE_PIPEA_VBLANK_IVB             (1<<0)

#define DEISR   0x44000
#define DEIMR   0x44004
#define DEIIR   0x44008
#define DEIER   0x4400c

/* GT interrupt */
#define GT_PIPE_NOTIFY          (1 << 4)
#define GT_SYNC_STATUS          (1 << 2)
#define GT_USER_INTERRUPT       (1 << 0)
#define GT_BSD_USER_INTERRUPT   (1 << 5)
#define GT_GEN6_BSD_USER_INTERRUPT      (1 << 12)
#define GT_BLT_USER_INTERRUPT   (1 << 22)

#define GTISR   0x44010
#define GTIMR   0x44014
#define GTIIR   0x44018
#define GTIER   0x4401c

#define ILK_DISPLAY_CHICKEN2    0x42004
/* Required on all Ironlake and Sandybridge according to the B-Spec. */
#define  ILK_ELPIN_409_SELECT   (1 << 25)
#define  ILK_DPARB_GATE (1<<22)
#define  ILK_VSDPFD_FULL        (1<<21)
#define ILK_DISPLAY_CHICKEN_FUSES       0x42014
#define  ILK_INTERNAL_GRAPHICS_DISABLE  (1<<31)
#define  ILK_INTERNAL_DISPLAY_DISABLE   (1<<30)
#define  ILK_DISPLAY_DEBUG_DISABLE      (1<<29)
#define  ILK_HDCP_DISABLE               (1<<25)
#define  ILK_eDP_A_DISABLE              (1<<24)
#define  ILK_DESKTOP                    (1<<23)
#define ILK_DSPCLK_GATE         0x42020
#define  IVB_VRHUNIT_CLK_GATE   (1<<28)
#define  ILK_DPARB_CLK_GATE     (1<<5)
#define  ILK_DPFD_CLK_GATE      (1<<7)

/* According to spec this bit 7/8/9 of 0x42020 should be set to enable FBC */
#define   ILK_CLK_FBC           (1<<7)
#define   ILK_DPFC_DIS1         (1<<8)
#define   ILK_DPFC_DIS2         (1<<9)

#define IVB_CHICKEN3    0x4200c
# define CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE      (1 << 5)
# define CHICKEN3_DGMG_DONE_FIX_DISABLE         (1 << 2)

#define DISP_ARB_CTL    0x45000
#define  DISP_TILE_SURFACE_SWIZZLING    (1<<13)
#define  DISP_FBC_WM_DIS                (1<<15)

/* GEN7 chicken */
#define GEN7_COMMON_SLICE_CHICKEN1              0x7010
# define GEN7_CSC1_RHWO_OPT_DISABLE_IN_RCC      ((1<<10) | (1<<26))

#define GEN7_L3CNTLREG1                         0xB01C
#define  GEN7_WA_FOR_GEN7_L3_CONTROL                    0x3C4FFF8C

#define GEN7_L3_CHICKEN_MODE_REGISTER           0xB030
#define  GEN7_WA_L3_CHICKEN_MODE                                0x20000000

/* WaCatErrorRejectionIssue */
#define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG          0x9030
#define  GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB       (1<<11)

/* PCH */

/* south display engine interrupt */
#define SDE_AUDIO_POWER_D       (1 << 27)
#define SDE_AUDIO_POWER_C       (1 << 26)
#define SDE_AUDIO_POWER_B       (1 << 25)
#define SDE_AUDIO_POWER_SHIFT   (25)
#define SDE_AUDIO_POWER_MASK    (7 << SDE_AUDIO_POWER_SHIFT)
#define SDE_GMBUS               (1 << 24)
#define SDE_AUDIO_HDCP_TRANSB   (1 << 23)
#define SDE_AUDIO_HDCP_TRANSA   (1 << 22)
#define SDE_AUDIO_HDCP_MASK     (3 << 22)
#define SDE_AUDIO_TRANSB        (1 << 21)
#define SDE_AUDIO_TRANSA        (1 << 20)
#define SDE_AUDIO_TRANS_MASK    (3 << 20)
#define SDE_POISON              (1 << 19)
/* 18 reserved */
#define SDE_FDI_RXB             (1 << 17)
#define SDE_FDI_RXA             (1 << 16)
#define SDE_FDI_MASK            (3 << 16)
#define SDE_AUXD                (1 << 15)
#define SDE_AUXC                (1 << 14)
#define SDE_AUXB                (1 << 13)
#define SDE_AUX_MASK            (7 << 13)
/* 12 reserved */
#define SDE_CRT_HOTPLUG         (1 << 11)
#define SDE_PORTD_HOTPLUG       (1 << 10)
#define SDE_PORTC_HOTPLUG       (1 << 9)
#define SDE_PORTB_HOTPLUG       (1 << 8)
#define SDE_SDVOB_HOTPLUG       (1 << 6)
#define SDE_HOTPLUG_MASK        (0xf << 8)
#define SDE_TRANSB_CRC_DONE     (1 << 5)
#define SDE_TRANSB_CRC_ERR      (1 << 4)
#define SDE_TRANSB_FIFO_UNDER   (1 << 3)
#define SDE_TRANSA_CRC_DONE     (1 << 2)
#define SDE_TRANSA_CRC_ERR      (1 << 1)
#define SDE_TRANSA_FIFO_UNDER   (1 << 0)
#define SDE_TRANS_MASK          (0x3f)
/* CPT */
#define SDE_CRT_HOTPLUG_CPT     (1 << 19)
#define SDE_PORTD_HOTPLUG_CPT   (1 << 23)
#define SDE_PORTC_HOTPLUG_CPT   (1 << 22)
#define SDE_PORTB_HOTPLUG_CPT   (1 << 21)
#define SDE_HOTPLUG_MASK_CPT    (SDE_CRT_HOTPLUG_CPT |          \
                                 SDE_PORTD_HOTPLUG_CPT |        \
                                 SDE_PORTC_HOTPLUG_CPT |        \
                                 SDE_PORTB_HOTPLUG_CPT)

#define SDEISR  0xc4000
#define SDEIMR  0xc4004
#define SDEIIR  0xc4008
#define SDEIER  0xc400c

/* digital port hotplug */
#define PCH_PORT_HOTPLUG        0xc4030         /* SHOTPLUG_CTL */
#define PORTD_HOTPLUG_ENABLE            (1 << 20)
#define PORTD_PULSE_DURATION_2ms        (0)
#define PORTD_PULSE_DURATION_4_5ms      (1 << 18)
#define PORTD_PULSE_DURATION_6ms        (2 << 18)
#define PORTD_PULSE_DURATION_100ms      (3 << 18)
#define PORTD_PULSE_DURATION_MASK       (3 << 18)
#define PORTD_HOTPLUG_NO_DETECT         (0)
#define PORTD_HOTPLUG_SHORT_DETECT      (1 << 16)
#define PORTD_HOTPLUG_LONG_DETECT       (1 << 17)
#define PORTC_HOTPLUG_ENABLE            (1 << 12)
#define PORTC_PULSE_DURATION_2ms        (0)
#define PORTC_PULSE_DURATION_4_5ms      (1 << 10)
#define PORTC_PULSE_DURATION_6ms        (2 << 10)
#define PORTC_PULSE_DURATION_100ms      (3 << 10)
#define PORTC_PULSE_DURATION_MASK       (3 << 10)
#define PORTC_HOTPLUG_NO_DETECT         (0)
#define PORTC_HOTPLUG_SHORT_DETECT      (1 << 8)
#define PORTC_HOTPLUG_LONG_DETECT       (1 << 9)
#define PORTB_HOTPLUG_ENABLE            (1 << 4)
#define PORTB_PULSE_DURATION_2ms        (0)
#define PORTB_PULSE_DURATION_4_5ms      (1 << 2)
#define PORTB_PULSE_DURATION_6ms        (2 << 2)
#define PORTB_PULSE_DURATION_100ms      (3 << 2)
#define PORTB_PULSE_DURATION_MASK       (3 << 2)
#define PORTB_HOTPLUG_NO_DETECT         (0)
#define PORTB_HOTPLUG_SHORT_DETECT      (1 << 0)
#define PORTB_HOTPLUG_LONG_DETECT       (1 << 1)

#define PCH_GPIOA               0xc5010
#define PCH_GPIOB               0xc5014
#define PCH_GPIOC               0xc5018
#define PCH_GPIOD               0xc501c
#define PCH_GPIOE               0xc5020
#define PCH_GPIOF               0xc5024

#define PCH_GMBUS0              0xc5100
#define PCH_GMBUS1              0xc5104
#define PCH_GMBUS2              0xc5108
#define PCH_GMBUS3              0xc510c
#define PCH_GMBUS4              0xc5110
#define PCH_GMBUS5              0xc5120

#define _PCH_DPLL_A              0xc6014
#define _PCH_DPLL_B              0xc6018
#define PCH_DPLL(pipe) (pipe == 0 ?  _PCH_DPLL_A : _PCH_DPLL_B)

#define _PCH_FPA0                0xc6040
#define  FP_CB_TUNE             (0x3<<22)
#define _PCH_FPA1                0xc6044
#define _PCH_FPB0                0xc6048
#define _PCH_FPB1                0xc604c
#define PCH_FP0(pipe) (pipe == 0 ? _PCH_FPA0 : _PCH_FPB0)
#define PCH_FP1(pipe) (pipe == 0 ? _PCH_FPA1 : _PCH_FPB1)

#define PCH_DPLL_TEST           0xc606c

#define PCH_DREF_CONTROL        0xC6200
#define  DREF_CONTROL_MASK      0x7fc3
#define  DREF_CPU_SOURCE_OUTPUT_DISABLE         (0<<13)
#define  DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD      (2<<13)
#define  DREF_CPU_SOURCE_OUTPUT_NONSPREAD       (3<<13)
#define  DREF_CPU_SOURCE_OUTPUT_MASK            (3<<13)
#define  DREF_SSC_SOURCE_DISABLE                (0<<11)
#define  DREF_SSC_SOURCE_ENABLE                 (2<<11)
#define  DREF_SSC_SOURCE_MASK                   (3<<11)
#define  DREF_NONSPREAD_SOURCE_DISABLE          (0<<9)
#define  DREF_NONSPREAD_CK505_ENABLE            (1<<9)
#define  DREF_NONSPREAD_SOURCE_ENABLE           (2<<9)
#define  DREF_NONSPREAD_SOURCE_MASK             (3<<9)
#define  DREF_SUPERSPREAD_SOURCE_DISABLE        (0<<7)
#define  DREF_SUPERSPREAD_SOURCE_ENABLE         (2<<7)
#define  DREF_SUPERSPREAD_SOURCE_MASK           (3<<7)
#define  DREF_SSC4_DOWNSPREAD                   (0<<6)
#define  DREF_SSC4_CENTERSPREAD                 (1<<6)
#define  DREF_SSC1_DISABLE                      (0<<1)
#define  DREF_SSC1_ENABLE                       (1<<1)
#define  DREF_SSC4_DISABLE                      (0)
#define  DREF_SSC4_ENABLE                       (1)

#define PCH_RAWCLK_FREQ         0xc6204
#define  FDL_TP1_TIMER_SHIFT    12
#define  FDL_TP1_TIMER_MASK     (3<<12)
#define  FDL_TP2_TIMER_SHIFT    10
#define  FDL_TP2_TIMER_MASK     (3<<10)
#define  RAWCLK_FREQ_MASK       0x3ff

#define PCH_DPLL_TMR_CFG        0xc6208

#define PCH_SSC4_PARMS          0xc6210
#define PCH_SSC4_AUX_PARMS      0xc6214

#define PCH_DPLL_SEL            0xc7000
#define  TRANSA_DPLL_ENABLE     (1<<3)
#define  TRANSA_DPLLB_SEL       (1<<0)
#define  TRANSA_DPLLA_SEL       0
#define  TRANSB_DPLL_ENABLE     (1<<7)
#define  TRANSB_DPLLB_SEL       (1<<4)
#define  TRANSB_DPLLA_SEL       (0)
#define  TRANSC_DPLL_ENABLE     (1<<11)
#define  TRANSC_DPLLB_SEL       (1<<8)
#define  TRANSC_DPLLA_SEL       (0)

/* transcoder */

#define _TRANS_HTOTAL_A          0xe0000
#define  TRANS_HTOTAL_SHIFT     16
#define  TRANS_HACTIVE_SHIFT    0
#define _TRANS_HBLANK_A          0xe0004
#define  TRANS_HBLANK_END_SHIFT 16
#define  TRANS_HBLANK_START_SHIFT 0
#define _TRANS_HSYNC_A           0xe0008
#define  TRANS_HSYNC_END_SHIFT  16
#define  TRANS_HSYNC_START_SHIFT 0
#define _TRANS_VTOTAL_A          0xe000c
#define  TRANS_VTOTAL_SHIFT     16
#define  TRANS_VACTIVE_SHIFT    0
#define _TRANS_VBLANK_A          0xe0010
#define  TRANS_VBLANK_END_SHIFT 16
#define  TRANS_VBLANK_START_SHIFT 0
#define _TRANS_VSYNC_A           0xe0014
#define  TRANS_VSYNC_END_SHIFT  16
#define  TRANS_VSYNC_START_SHIFT 0

#define _TRANSA_DATA_M1          0xe0030
#define _TRANSA_DATA_N1          0xe0034
#define _TRANSA_DATA_M2          0xe0038
#define _TRANSA_DATA_N2          0xe003c
#define _TRANSA_DP_LINK_M1       0xe0040
#define _TRANSA_DP_LINK_N1       0xe0044
#define _TRANSA_DP_LINK_M2       0xe0048
#define _TRANSA_DP_LINK_N2       0xe004c

/* Per-transcoder DIP controls */

#define _VIDEO_DIP_CTL_A         0xe0200
#define _VIDEO_DIP_DATA_A        0xe0208
#define _VIDEO_DIP_GCP_A         0xe0210

#define _VIDEO_DIP_CTL_B         0xe1200
#define _VIDEO_DIP_DATA_B        0xe1208
#define _VIDEO_DIP_GCP_B         0xe1210

#define TVIDEO_DIP_CTL(pipe) _PIPE(pipe, _VIDEO_DIP_CTL_A, _VIDEO_DIP_CTL_B)
#define TVIDEO_DIP_DATA(pipe) _PIPE(pipe, _VIDEO_DIP_DATA_A, _VIDEO_DIP_DATA_B)
#define TVIDEO_DIP_GCP(pipe) _PIPE(pipe, _VIDEO_DIP_GCP_A, _VIDEO_DIP_GCP_B)

#define _TRANS_HTOTAL_B          0xe1000
#define _TRANS_HBLANK_B          0xe1004
#define _TRANS_HSYNC_B           0xe1008
#define _TRANS_VTOTAL_B          0xe100c
#define _TRANS_VBLANK_B          0xe1010
#define _TRANS_VSYNC_B           0xe1014

#define TRANS_HTOTAL(pipe) _PIPE(pipe, _TRANS_HTOTAL_A, _TRANS_HTOTAL_B)
#define TRANS_HBLANK(pipe) _PIPE(pipe, _TRANS_HBLANK_A, _TRANS_HBLANK_B)
#define TRANS_HSYNC(pipe) _PIPE(pipe, _TRANS_HSYNC_A, _TRANS_HSYNC_B)
#define TRANS_VTOTAL(pipe) _PIPE(pipe, _TRANS_VTOTAL_A, _TRANS_VTOTAL_B)
#define TRANS_VBLANK(pipe) _PIPE(pipe, _TRANS_VBLANK_A, _TRANS_VBLANK_B)
#define TRANS_VSYNC(pipe) _PIPE(pipe, _TRANS_VSYNC_A, _TRANS_VSYNC_B)

#define _TRANSB_DATA_M1          0xe1030
#define _TRANSB_DATA_N1          0xe1034
#define _TRANSB_DATA_M2          0xe1038
#define _TRANSB_DATA_N2          0xe103c
#define _TRANSB_DP_LINK_M1       0xe1040
#define _TRANSB_DP_LINK_N1       0xe1044
#define _TRANSB_DP_LINK_M2       0xe1048
#define _TRANSB_DP_LINK_N2       0xe104c

#define TRANSDATA_M1(pipe) _PIPE(pipe, _TRANSA_DATA_M1, _TRANSB_DATA_M1)
#define TRANSDATA_N1(pipe) _PIPE(pipe, _TRANSA_DATA_N1, _TRANSB_DATA_N1)
#define TRANSDATA_M2(pipe) _PIPE(pipe, _TRANSA_DATA_M2, _TRANSB_DATA_M2)
#define TRANSDATA_N2(pipe) _PIPE(pipe, _TRANSA_DATA_N2, _TRANSB_DATA_N2)
#define TRANSDPLINK_M1(pipe) _PIPE(pipe, _TRANSA_DP_LINK_M1, _TRANSB_DP_LINK_M1)
#define TRANSDPLINK_N1(pipe) _PIPE(pipe, _TRANSA_DP_LINK_N1, _TRANSB_DP_LINK_N1)
#define TRANSDPLINK_M2(pipe) _PIPE(pipe, _TRANSA_DP_LINK_M2, _TRANSB_DP_LINK_M2)
#define TRANSDPLINK_N2(pipe) _PIPE(pipe, _TRANSA_DP_LINK_N2, _TRANSB_DP_LINK_N2)

#define _TRANSACONF              0xf0008
#define _TRANSBCONF              0xf1008
#define TRANSCONF(plane) _PIPE(plane, _TRANSACONF, _TRANSBCONF)
#define  TRANS_DISABLE          (0<<31)
#define  TRANS_ENABLE           (1<<31)
#define  TRANS_STATE_MASK       (1<<30)
#define  TRANS_STATE_DISABLE    (0<<30)
#define  TRANS_STATE_ENABLE     (1<<30)
#define  TRANS_FSYNC_DELAY_HB1  (0<<27)
#define  TRANS_FSYNC_DELAY_HB2  (1<<27)
#define  TRANS_FSYNC_DELAY_HB3  (2<<27)
#define  TRANS_FSYNC_DELAY_HB4  (3<<27)
#define  TRANS_DP_AUDIO_ONLY    (1<<26)
#define  TRANS_DP_VIDEO_AUDIO   (0<<26)
#define  TRANS_PROGRESSIVE      (0<<21)
#define  TRANS_8BPC             (0<<5)
#define  TRANS_10BPC            (1<<5)
#define  TRANS_6BPC             (2<<5)
#define  TRANS_12BPC            (3<<5)

#define _TRANSA_CHICKEN2         0xf0064
#define _TRANSB_CHICKEN2         0xf1064
#define TRANS_CHICKEN2(pipe) _PIPE(pipe, _TRANSA_CHICKEN2, _TRANSB_CHICKEN2)
#define   TRANS_AUTOTRAIN_GEN_STALL_DIS (1<<31)

#define SOUTH_CHICKEN1          0xc2000
#define  FDIA_PHASE_SYNC_SHIFT_OVR      19
#define  FDIA_PHASE_SYNC_SHIFT_EN       18
#define FDI_PHASE_SYNC_OVR(pipe) (1<<(FDIA_PHASE_SYNC_SHIFT_OVR - ((pipe) * 2)))
#define FDI_PHASE_SYNC_EN(pipe) (1<<(FDIA_PHASE_SYNC_SHIFT_EN - ((pipe) * 2)))
#define SOUTH_CHICKEN2          0xc2004
#define  DPLS_EDP_PPS_FIX_DIS   (1<<0)

#define _FDI_RXA_CHICKEN         0xc200c
#define _FDI_RXB_CHICKEN         0xc2010
#define  FDI_RX_PHASE_SYNC_POINTER_OVR  (1<<1)
#define  FDI_RX_PHASE_SYNC_POINTER_EN   (1<<0)
#define FDI_RX_CHICKEN(pipe) _PIPE(pipe, _FDI_RXA_CHICKEN, _FDI_RXB_CHICKEN)

#define SOUTH_DSPCLK_GATE_D     0xc2020
#define  PCH_DPLSUNIT_CLOCK_GATE_DISABLE (1<<29)

/* CPU: FDI_TX */
#define _FDI_TXA_CTL             0x60100
#define _FDI_TXB_CTL             0x61100
#define FDI_TX_CTL(pipe) _PIPE(pipe, _FDI_TXA_CTL, _FDI_TXB_CTL)
#define  FDI_TX_DISABLE         (0<<31)
#define  FDI_TX_ENABLE          (1<<31)
#define  FDI_LINK_TRAIN_PATTERN_1       (0<<28)
#define  FDI_LINK_TRAIN_PATTERN_2       (1<<28)
#define  FDI_LINK_TRAIN_PATTERN_IDLE    (2<<28)
#define  FDI_LINK_TRAIN_NONE            (3<<28)
#define  FDI_LINK_TRAIN_VOLTAGE_0_4V    (0<<25)
#define  FDI_LINK_TRAIN_VOLTAGE_0_6V    (1<<25)
#define  FDI_LINK_TRAIN_VOLTAGE_0_8V    (2<<25)
#define  FDI_LINK_TRAIN_VOLTAGE_1_2V    (3<<25)
#define  FDI_LINK_TRAIN_PRE_EMPHASIS_NONE (0<<22)
#define  FDI_LINK_TRAIN_PRE_EMPHASIS_1_5X (1<<22)
#define  FDI_LINK_TRAIN_PRE_EMPHASIS_2X   (2<<22)
#define  FDI_LINK_TRAIN_PRE_EMPHASIS_3X   (3<<22)
/* ILK always use 400mV 0dB for voltage swing and pre-emphasis level.
   SNB has different settings. */
/* SNB A-stepping */
#define  FDI_LINK_TRAIN_400MV_0DB_SNB_A         (0x38<<22)
#define  FDI_LINK_TRAIN_400MV_6DB_SNB_A         (0x02<<22)
#define  FDI_LINK_TRAIN_600MV_3_5DB_SNB_A       (0x01<<22)
#define  FDI_LINK_TRAIN_800MV_0DB_SNB_A         (0x0<<22)
/* SNB B-stepping */
#define  FDI_LINK_TRAIN_400MV_0DB_SNB_B         (0x0<<22)
#define  FDI_LINK_TRAIN_400MV_6DB_SNB_B         (0x3a<<22)
#define  FDI_LINK_TRAIN_600MV_3_5DB_SNB_B       (0x39<<22)
#define  FDI_LINK_TRAIN_800MV_0DB_SNB_B         (0x38<<22)
#define  FDI_LINK_TRAIN_VOL_EMP_MASK            (0x3f<<22)
#define  FDI_DP_PORT_WIDTH_X1           (0<<19)
#define  FDI_DP_PORT_WIDTH_X2           (1<<19)
#define  FDI_DP_PORT_WIDTH_X3           (2<<19)
#define  FDI_DP_PORT_WIDTH_X4           (3<<19)
#define  FDI_TX_ENHANCE_FRAME_ENABLE    (1<<18)
/* Ironlake: hardwired to 1 */
#define  FDI_TX_PLL_ENABLE              (1<<14)

/* Ivybridge has different bits for lolz */
#define  FDI_LINK_TRAIN_PATTERN_1_IVB       (0<<8)
#define  FDI_LINK_TRAIN_PATTERN_2_IVB       (1<<8)
#define  FDI_LINK_TRAIN_PATTERN_IDLE_IVB    (2<<8)
#define  FDI_LINK_TRAIN_NONE_IVB            (3<<8)

/* both Tx and Rx */
#define  FDI_COMPOSITE_SYNC             (1<<11)
#define  FDI_LINK_TRAIN_AUTO            (1<<10)
#define  FDI_SCRAMBLING_ENABLE          (0<<7)
#define  FDI_SCRAMBLING_DISABLE         (1<<7)

/* FDI_RX, FDI_X is hard-wired to Transcoder_X */
#define _FDI_RXA_CTL             0xf000c
#define _FDI_RXB_CTL             0xf100c
#define FDI_RX_CTL(pipe) _PIPE(pipe, _FDI_RXA_CTL, _FDI_RXB_CTL)
#define  FDI_RX_ENABLE          (1<<31)
/* train, dp width same as FDI_TX */
#define  FDI_FS_ERRC_ENABLE             (1<<27)
#define  FDI_FE_ERRC_ENABLE             (1<<26)
#define  FDI_DP_PORT_WIDTH_X8           (7<<19)
#define  FDI_8BPC                       (0<<16)
#define  FDI_10BPC                      (1<<16)
#define  FDI_6BPC                       (2<<16)
#define  FDI_12BPC                      (3<<16)
#define  FDI_LINK_REVERSE_OVERWRITE     (1<<15)
#define  FDI_DMI_LINK_REVERSE_MASK      (1<<14)
#define  FDI_RX_PLL_ENABLE              (1<<13)
#define  FDI_FS_ERR_CORRECT_ENABLE      (1<<11)
#define  FDI_FE_ERR_CORRECT_ENABLE      (1<<10)
#define  FDI_FS_ERR_REPORT_ENABLE       (1<<9)
#define  FDI_FE_ERR_REPORT_ENABLE       (1<<8)
#define  FDI_RX_ENHANCE_FRAME_ENABLE    (1<<6)
#define  FDI_PCDCLK                     (1<<4)
/* CPT */
#define  FDI_AUTO_TRAINING                      (1<<10)
#define  FDI_LINK_TRAIN_PATTERN_1_CPT           (0<<8)
#define  FDI_LINK_TRAIN_PATTERN_2_CPT           (1<<8)
#define  FDI_LINK_TRAIN_PATTERN_IDLE_CPT        (2<<8)
#define  FDI_LINK_TRAIN_NORMAL_CPT              (3<<8)
#define  FDI_LINK_TRAIN_PATTERN_MASK_CPT        (3<<8)

#define _FDI_RXA_MISC            0xf0010
#define _FDI_RXB_MISC            0xf1010
#define _FDI_RXA_TUSIZE1         0xf0030
#define _FDI_RXA_TUSIZE2         0xf0038
#define _FDI_RXB_TUSIZE1         0xf1030
#define _FDI_RXB_TUSIZE2         0xf1038
#define FDI_RX_MISC(pipe) _PIPE(pipe, _FDI_RXA_MISC, _FDI_RXB_MISC)
#define FDI_RX_TUSIZE1(pipe) _PIPE(pipe, _FDI_RXA_TUSIZE1, _FDI_RXB_TUSIZE1)
#define FDI_RX_TUSIZE2(pipe) _PIPE(pipe, _FDI_RXA_TUSIZE2, _FDI_RXB_TUSIZE2)

/* FDI_RX interrupt register format */
#define FDI_RX_INTER_LANE_ALIGN         (1<<10)
#define FDI_RX_SYMBOL_LOCK              (1<<9) /* train 2 */
#define FDI_RX_BIT_LOCK                 (1<<8) /* train 1 */
#define FDI_RX_TRAIN_PATTERN_2_FAIL     (1<<7)
#define FDI_RX_FS_CODE_ERR              (1<<6)
#define FDI_RX_FE_CODE_ERR              (1<<5)
#define FDI_RX_SYMBOL_ERR_RATE_ABOVE    (1<<4)
#define FDI_RX_HDCP_LINK_FAIL           (1<<3)
#define FDI_RX_PIXEL_FIFO_OVERFLOW      (1<<2)
#define FDI_RX_CROSS_CLOCK_OVERFLOW     (1<<1)
#define FDI_RX_SYMBOL_QUEUE_OVERFLOW    (1<<0)

#define _FDI_RXA_IIR             0xf0014
#define _FDI_RXA_IMR             0xf0018
#define _FDI_RXB_IIR             0xf1014
#define _FDI_RXB_IMR             0xf1018
#define FDI_RX_IIR(pipe) _PIPE(pipe, _FDI_RXA_IIR, _FDI_RXB_IIR)
#define FDI_RX_IMR(pipe) _PIPE(pipe, _FDI_RXA_IMR, _FDI_RXB_IMR)

#define FDI_PLL_CTL_1           0xfe000
#define FDI_PLL_CTL_2           0xfe004

/* CRT */
#define PCH_ADPA                0xe1100
#define  ADPA_TRANS_SELECT_MASK (1<<30)
#define  ADPA_TRANS_A_SELECT    0
#define  ADPA_TRANS_B_SELECT    (1<<30)
#define  ADPA_CRT_HOTPLUG_MASK  0x03ff0000 /* bit 25-16 */
#define  ADPA_CRT_HOTPLUG_MONITOR_NONE  (0<<24)
#define  ADPA_CRT_HOTPLUG_MONITOR_MASK  (3<<24)
#define  ADPA_CRT_HOTPLUG_MONITOR_COLOR (3<<24)
#define  ADPA_CRT_HOTPLUG_MONITOR_MONO  (2<<24)
#define  ADPA_CRT_HOTPLUG_ENABLE        (1<<23)
#define  ADPA_CRT_HOTPLUG_PERIOD_64     (0<<22)
#define  ADPA_CRT_HOTPLUG_PERIOD_128    (1<<22)
#define  ADPA_CRT_HOTPLUG_WARMUP_5MS    (0<<21)
#define  ADPA_CRT_HOTPLUG_WARMUP_10MS   (1<<21)
#define  ADPA_CRT_HOTPLUG_SAMPLE_2S     (0<<20)
#define  ADPA_CRT_HOTPLUG_SAMPLE_4S     (1<<20)
#define  ADPA_CRT_HOTPLUG_VOLTAGE_40    (0<<18)
#define  ADPA_CRT_HOTPLUG_VOLTAGE_50    (1<<18)
#define  ADPA_CRT_HOTPLUG_VOLTAGE_60    (2<<18)
#define  ADPA_CRT_HOTPLUG_VOLTAGE_70    (3<<18)
#define  ADPA_CRT_HOTPLUG_VOLREF_325MV  (0<<17)
#define  ADPA_CRT_HOTPLUG_VOLREF_475MV  (1<<17)
#define  ADPA_CRT_HOTPLUG_FORCE_TRIGGER (1<<16)

/* or SDVOB */
#define HDMIB   0xe1140
#define  PORT_ENABLE    (1 << 31)
#define  TRANSCODER(pipe)       ((pipe) << 30)
#define  TRANSCODER_CPT(pipe)   ((pipe) << 29)
#define  TRANSCODER_MASK        (1 << 30)
#define  TRANSCODER_MASK_CPT    (3 << 29)
#define  COLOR_FORMAT_8bpc      (0)
#define  COLOR_FORMAT_12bpc     (3 << 26)
#define  SDVOB_HOTPLUG_ENABLE   (1 << 23)
#define  SDVO_ENCODING          (0)
#define  TMDS_ENCODING          (2 << 10)
#define  NULL_PACKET_VSYNC_ENABLE       (1 << 9)
/* CPT */
#define  HDMI_MODE_SELECT       (1 << 9)
#define  DVI_MODE_SELECT        (0)
#define  SDVOB_BORDER_ENABLE    (1 << 7)
#define  AUDIO_ENABLE           (1 << 6)
#define  VSYNC_ACTIVE_HIGH      (1 << 4)
#define  HSYNC_ACTIVE_HIGH      (1 << 3)
#define  PORT_DETECTED          (1 << 2)

/* PCH SDVOB multiplex with HDMIB */
#define PCH_SDVOB       HDMIB

#define HDMIC   0xe1150
#define HDMID   0xe1160

#define PCH_LVDS        0xe1180
#define  LVDS_DETECTED  (1 << 1)

#define BLC_PWM_CPU_CTL2        0x48250
#define  PWM_ENABLE             (1 << 31)
#define  PWM_PIPE_A             (0 << 29)
#define  PWM_PIPE_B             (1 << 29)
#define BLC_PWM_CPU_CTL         0x48254

#define BLC_PWM_PCH_CTL1        0xc8250
#define  PWM_PCH_ENABLE         (1 << 31)
#define  PWM_POLARITY_ACTIVE_LOW        (1 << 29)
#define  PWM_POLARITY_ACTIVE_HIGH       (0 << 29)
#define  PWM_POLARITY_ACTIVE_LOW2       (1 << 28)
#define  PWM_POLARITY_ACTIVE_HIGH2      (0 << 28)

#define BLC_PWM_PCH_CTL2        0xc8254

#define PCH_PP_STATUS           0xc7200
#define PCH_PP_CONTROL          0xc7204
#define  PANEL_UNLOCK_REGS      (0xabcd << 16)
#define  PANEL_UNLOCK_MASK      (0xffff << 16)
#define  EDP_FORCE_VDD          (1 << 3)
#define  EDP_BLC_ENABLE         (1 << 2)
#define  PANEL_POWER_RESET      (1 << 1)
#define  PANEL_POWER_OFF        (0 << 0)
#define  PANEL_POWER_ON         (1 << 0)
#define PCH_PP_ON_DELAYS        0xc7208
#define  PANEL_PORT_SELECT_MASK (3 << 30)
#define  PANEL_PORT_SELECT_LVDS (0 << 30)
#define  PANEL_PORT_SELECT_DPA  (1 << 30)
#define  EDP_PANEL              (1 << 30)
#define  PANEL_PORT_SELECT_DPC  (2 << 30)
#define  PANEL_PORT_SELECT_DPD  (3 << 30)
#define  PANEL_POWER_UP_DELAY_MASK      (0x1fff0000)
#define  PANEL_POWER_UP_DELAY_SHIFT     16
#define  PANEL_LIGHT_ON_DELAY_MASK      (0x1fff)
#define  PANEL_LIGHT_ON_DELAY_SHIFT     0

#define PCH_PP_OFF_DELAYS       0xc720c
#define  PANEL_POWER_DOWN_DELAY_MASK    (0x1fff0000)
#define  PANEL_POWER_DOWN_DELAY_SHIFT   16
#define  PANEL_LIGHT_OFF_DELAY_MASK     (0x1fff)
#define  PANEL_LIGHT_OFF_DELAY_SHIFT    0

#define PCH_PP_DIVISOR          0xc7210
#define  PP_REFERENCE_DIVIDER_MASK      (0xffffff00)
#define  PP_REFERENCE_DIVIDER_SHIFT     8
#define  PANEL_POWER_CYCLE_DELAY_MASK   (0x1f)
#define  PANEL_POWER_CYCLE_DELAY_SHIFT  0

#define PCH_DP_B                0xe4100
#define PCH_DPB_AUX_CH_CTL      0xe4110
#define PCH_DPB_AUX_CH_DATA1    0xe4114
#define PCH_DPB_AUX_CH_DATA2    0xe4118
#define PCH_DPB_AUX_CH_DATA3    0xe411c
#define PCH_DPB_AUX_CH_DATA4    0xe4120
#define PCH_DPB_AUX_CH_DATA5    0xe4124

#define PCH_DP_C                0xe4200
#define PCH_DPC_AUX_CH_CTL      0xe4210
#define PCH_DPC_AUX_CH_DATA1    0xe4214
#define PCH_DPC_AUX_CH_DATA2    0xe4218
#define PCH_DPC_AUX_CH_DATA3    0xe421c
#define PCH_DPC_AUX_CH_DATA4    0xe4220
#define PCH_DPC_AUX_CH_DATA5    0xe4224

#define PCH_DP_D                0xe4300
#define PCH_DPD_AUX_CH_CTL      0xe4310
#define PCH_DPD_AUX_CH_DATA1    0xe4314
#define PCH_DPD_AUX_CH_DATA2    0xe4318
#define PCH_DPD_AUX_CH_DATA3    0xe431c
#define PCH_DPD_AUX_CH_DATA4    0xe4320
#define PCH_DPD_AUX_CH_DATA5    0xe4324

/* CPT */
#define  PORT_TRANS_A_SEL_CPT   0
#define  PORT_TRANS_B_SEL_CPT   (1<<29)
#define  PORT_TRANS_C_SEL_CPT   (2<<29)
#define  PORT_TRANS_SEL_MASK    (3<<29)
#define  PORT_TRANS_SEL_CPT(pipe)       ((pipe) << 29)

#define TRANS_DP_CTL_A          0xe0300
#define TRANS_DP_CTL_B          0xe1300
#define TRANS_DP_CTL_C          0xe2300
#define TRANS_DP_CTL(pipe)      (TRANS_DP_CTL_A + (pipe) * 0x01000)
#define  TRANS_DP_OUTPUT_ENABLE (1<<31)
#define  TRANS_DP_PORT_SEL_B    (0<<29)
#define  TRANS_DP_PORT_SEL_C    (1<<29)
#define  TRANS_DP_PORT_SEL_D    (2<<29)
#define  TRANS_DP_PORT_SEL_NONE (3<<29)
#define  TRANS_DP_PORT_SEL_MASK (3<<29)
#define  TRANS_DP_AUDIO_ONLY    (1<<26)
#define  TRANS_DP_ENH_FRAMING   (1<<18)
#define  TRANS_DP_8BPC          (0<<9)
#define  TRANS_DP_10BPC         (1<<9)
#define  TRANS_DP_6BPC          (2<<9)
#define  TRANS_DP_12BPC         (3<<9)
#define  TRANS_DP_BPC_MASK      (3<<9)
#define  TRANS_DP_VSYNC_ACTIVE_HIGH     (1<<4)
#define  TRANS_DP_VSYNC_ACTIVE_LOW      0
#define  TRANS_DP_HSYNC_ACTIVE_HIGH     (1<<3)
#define  TRANS_DP_HSYNC_ACTIVE_LOW      0
#define  TRANS_DP_SYNC_MASK     (3<<3)

/* SNB eDP training params */
/* SNB A-stepping */
#define  EDP_LINK_TRAIN_400MV_0DB_SNB_A         (0x38<<22)
#define  EDP_LINK_TRAIN_400MV_6DB_SNB_A         (0x02<<22)
#define  EDP_LINK_TRAIN_600MV_3_5DB_SNB_A       (0x01<<22)
#define  EDP_LINK_TRAIN_800MV_0DB_SNB_A         (0x0<<22)
/* SNB B-stepping */
#define  EDP_LINK_TRAIN_400_600MV_0DB_SNB_B     (0x0<<22)
#define  EDP_LINK_TRAIN_400MV_3_5DB_SNB_B       (0x1<<22)
#define  EDP_LINK_TRAIN_400_600MV_6DB_SNB_B     (0x3a<<22)
#define  EDP_LINK_TRAIN_600_800MV_3_5DB_SNB_B   (0x39<<22)
#define  EDP_LINK_TRAIN_800_1200MV_0DB_SNB_B    (0x38<<22)
#define  EDP_LINK_TRAIN_VOL_EMP_MASK_SNB        (0x3f<<22)

/* IVB */
#define EDP_LINK_TRAIN_400MV_0DB_IVB            (0x24 <<22)
#define EDP_LINK_TRAIN_400MV_3_5DB_IVB          (0x2a <<22)
#define EDP_LINK_TRAIN_400MV_6DB_IVB            (0x2f <<22)
#define EDP_LINK_TRAIN_600MV_0DB_IVB            (0x30 <<22)
#define EDP_LINK_TRAIN_600MV_3_5DB_IVB          (0x36 <<22)
#define EDP_LINK_TRAIN_800MV_0DB_IVB            (0x38 <<22)
#define EDP_LINK_TRAIN_800MV_3_5DB_IVB          (0x33 <<22)

/* legacy values */
#define EDP_LINK_TRAIN_500MV_0DB_IVB            (0x00 <<22)
#define EDP_LINK_TRAIN_1000MV_0DB_IVB           (0x20 <<22)
#define EDP_LINK_TRAIN_500MV_3_5DB_IVB          (0x02 <<22)
#define EDP_LINK_TRAIN_1000MV_3_5DB_IVB         (0x22 <<22)
#define EDP_LINK_TRAIN_1000MV_6DB_IVB           (0x23 <<22)

#define  EDP_LINK_TRAIN_VOL_EMP_MASK_IVB        (0x3f<<22)

#define  FORCEWAKE                              0xA18C
#define  FORCEWAKE_ACK                          0x130090
#define  FORCEWAKE_MT                           0xa188 /* multi-threaded */
#define  FORCEWAKE_MT_ACK                       0x130040
#define  ECOBUS                                 0xa180
#define    FORCEWAKE_MT_ENABLE                  (1<<5)

#define  GT_FIFO_FREE_ENTRIES                   0x120008
#define    GT_FIFO_NUM_RESERVED_ENTRIES         20

#define GEN6_UCGCTL2                            0x9404
# define GEN6_RCZUNIT_CLOCK_GATE_DISABLE                (1 << 13)
# define GEN6_RCPBUNIT_CLOCK_GATE_DISABLE               (1 << 12)
# define GEN6_RCCUNIT_CLOCK_GATE_DISABLE                (1 << 11)

#define GEN6_RPNSWREQ                           0xA008
#define   GEN6_TURBO_DISABLE                    (1<<31)
#define   GEN6_FREQUENCY(x)                     ((x)<<25)
#define   GEN6_OFFSET(x)                        ((x)<<19)
#define   GEN6_AGGRESSIVE_TURBO                 (0<<15)
#define GEN6_RC_VIDEO_FREQ                      0xA00C
#define GEN6_RC_CONTROL                         0xA090
#define   GEN6_RC_CTL_RC6pp_ENABLE              (1<<16)
#define   GEN6_RC_CTL_RC6p_ENABLE               (1<<17)
#define   GEN6_RC_CTL_RC6_ENABLE                (1<<18)
#define   GEN6_RC_CTL_RC1e_ENABLE               (1<<20)
#define   GEN6_RC_CTL_RC7_ENABLE                (1<<22)
#define   GEN6_RC_CTL_EI_MODE(x)                ((x)<<27)
#define   GEN6_RC_CTL_HW_ENABLE                 (1<<31)
#define GEN6_RP_DOWN_TIMEOUT                    0xA010
#define GEN6_RP_INTERRUPT_LIMITS                0xA014
#define GEN6_RPSTAT1                            0xA01C
#define   GEN6_CAGF_SHIFT                       8
#define   GEN6_CAGF_MASK                        (0x7f << GEN6_CAGF_SHIFT)
#define GEN6_RP_CONTROL                         0xA024
#define   GEN6_RP_MEDIA_TURBO                   (1<<11)
#define   GEN6_RP_MEDIA_MODE_MASK               (3<<9)
#define   GEN6_RP_MEDIA_HW_TURBO_MODE           (3<<9)
#define   GEN6_RP_MEDIA_HW_NORMAL_MODE          (2<<9)
#define   GEN6_RP_MEDIA_HW_MODE                 (1<<9)
#define   GEN6_RP_MEDIA_SW_MODE                 (0<<9)
#define   GEN6_RP_MEDIA_IS_GFX                  (1<<8)
#define   GEN6_RP_ENABLE                        (1<<7)
#define   GEN6_RP_UP_IDLE_MIN                   (0x1<<3)
#define   GEN6_RP_UP_BUSY_AVG                   (0x2<<3)
#define   GEN6_RP_UP_BUSY_CONT                  (0x4<<3)
#define   GEN6_RP_DOWN_IDLE_CONT                (0x1<<0)
#define GEN6_RP_UP_THRESHOLD                    0xA02C
#define GEN6_RP_DOWN_THRESHOLD                  0xA030
#define GEN6_RP_CUR_UP_EI                       0xA050
#define   GEN6_CURICONT_MASK                    0xffffff
#define GEN6_RP_CUR_UP                          0xA054
#define   GEN6_CURBSYTAVG_MASK                  0xffffff
#define GEN6_RP_PREV_UP                         0xA058
#define GEN6_RP_CUR_DOWN_EI                     0xA05C
#define   GEN6_CURIAVG_MASK                     0xffffff
#define GEN6_RP_CUR_DOWN                        0xA060
#define GEN6_RP_PREV_DOWN                       0xA064
#define GEN6_RP_UP_EI                           0xA068
#define GEN6_RP_DOWN_EI                         0xA06C
#define GEN6_RP_IDLE_HYSTERSIS                  0xA070
#define GEN6_RC_STATE                           0xA094
#define GEN6_RC1_WAKE_RATE_LIMIT                0xA098
#define GEN6_RC6_WAKE_RATE_LIMIT                0xA09C
#define GEN6_RC6pp_WAKE_RATE_LIMIT              0xA0A0
#define GEN6_RC_EVALUATION_INTERVAL             0xA0A8
#define GEN6_RC_IDLE_HYSTERSIS                  0xA0AC
#define GEN6_RC_SLEEP                           0xA0B0
#define GEN6_RC1e_THRESHOLD                     0xA0B4
#define GEN6_RC6_THRESHOLD                      0xA0B8
#define GEN6_RC6p_THRESHOLD                     0xA0BC
#define GEN6_RC6pp_THRESHOLD                    0xA0C0
#define GEN6_PMINTRMSK                          0xA168

#define GEN6_PMISR                              0x44020
#define GEN6_PMIMR                              0x44024 /* rps_lock */
#define GEN6_PMIIR                              0x44028
#define GEN6_PMIER                              0x4402C
#define  GEN6_PM_MBOX_EVENT                     (1<<25)
#define  GEN6_PM_THERMAL_EVENT                  (1<<24)
#define  GEN6_PM_RP_DOWN_TIMEOUT                (1<<6)
#define  GEN6_PM_RP_UP_THRESHOLD                (1<<5)
#define  GEN6_PM_RP_DOWN_THRESHOLD              (1<<4)
#define  GEN6_PM_RP_UP_EI_EXPIRED               (1<<2)
#define  GEN6_PM_RP_DOWN_EI_EXPIRED             (1<<1)
#define  GEN6_PM_DEFERRED_EVENTS                (GEN6_PM_RP_UP_THRESHOLD | \
                                                 GEN6_PM_RP_DOWN_THRESHOLD | \
                                                 GEN6_PM_RP_DOWN_TIMEOUT)

#define GEN6_PCODE_MAILBOX                      0x138124
#define   GEN6_PCODE_READY                      (1<<31)
#define   GEN6_READ_OC_PARAMS                   0xc
#define   GEN6_PCODE_WRITE_MIN_FREQ_TABLE       0x8
#define   GEN6_PCODE_READ_MIN_FREQ_TABLE        0x9
#define GEN6_PCODE_DATA                         0x138128
#define   GEN6_PCODE_FREQ_IA_RATIO_SHIFT        8

#define GEN6_GT_CORE_STATUS             0x138060
#define   GEN6_CORE_CPD_STATE_MASK      (7<<4)
#define   GEN6_RCn_MASK                 7
#define   GEN6_RC0                      0
#define   GEN6_RC3                      2
#define   GEN6_RC6                      3
#define   GEN6_RC7                      4

#define G4X_AUD_VID_DID                 0x62020
#define INTEL_AUDIO_DEVCL               0x808629FB
#define INTEL_AUDIO_DEVBLC              0x80862801
#define INTEL_AUDIO_DEVCTG              0x80862802

#define G4X_AUD_CNTL_ST                 0x620B4
#define G4X_ELDV_DEVCL_DEVBLC           (1 << 13)
#define G4X_ELDV_DEVCTG                 (1 << 14)
#define G4X_ELD_ADDR                    (0xf << 5)
#define G4X_ELD_ACK                     (1 << 4)
#define G4X_HDMIW_HDMIEDID              0x6210C

#define IBX_HDMIW_HDMIEDID_A            0xE2050
#define IBX_AUD_CNTL_ST_A               0xE20B4
#define IBX_ELD_BUFFER_SIZE             (0x1f << 10)
#define IBX_ELD_ADDRESS                 (0x1f << 5)
#define IBX_ELD_ACK                     (1 << 4)
#define IBX_AUD_CNTL_ST2                0xE20C0
#define IBX_ELD_VALIDB                  (1 << 0)
#define IBX_CP_READYB                   (1 << 1)

#define CPT_HDMIW_HDMIEDID_A            0xE5050
#define CPT_AUD_CNTL_ST_A               0xE50B4
#define CPT_AUD_CNTRL_ST2               0xE50C0

/* These are the 4 32-bit write offset registers for each stream
 * output buffer.  It determines the offset from the
 * 3DSTATE_SO_BUFFERs that the next streamed vertex output goes to.
 */
#define GEN7_SO_WRITE_OFFSET(n)         (0x5280 + (n) * 4)

#endif /* _I915_REG_H_ */