diff --git a/include/video/tdfx.h b/include/video/tdfx.h
new file mode 100644
index 0000000..a896e44
--- /dev/null
+++ b/include/video/tdfx.h
@@ -0,0 +1,192 @@
+#ifndef _TDFX_H
+#define _TDFX_H
+
+/* membase0 register offsets */
+#define STATUS          0x00
+#define PCIINIT0        0x04
+#define SIPMONITOR      0x08
+#define LFBMEMORYCONFIG 0x0c
+#define MISCINIT0       0x10
+#define MISCINIT1       0x14
+#define DRAMINIT0       0x18
+#define DRAMINIT1       0x1c
+#define AGPINIT         0x20
+#define TMUGBEINIT      0x24
+#define VGAINIT0        0x28
+#define VGAINIT1        0x2c
+#define DRAMCOMMAND     0x30
+#define DRAMDATA        0x34
+/* reserved             0x38 */
+/* reserved             0x3c */
+#define PLLCTRL0        0x40
+#define PLLCTRL1        0x44
+#define PLLCTRL2        0x48
+#define DACMODE         0x4c
+#define DACADDR         0x50
+#define DACDATA         0x54
+#define RGBMAXDELTA     0x58
+#define VIDPROCCFG      0x5c
+#define HWCURPATADDR    0x60
+#define HWCURLOC        0x64
+#define HWCURC0         0x68
+#define HWCURC1         0x6c
+#define VIDINFORMAT     0x70
+#define VIDINSTATUS     0x74
+#define VIDSERPARPORT   0x78
+#define VIDINXDELTA     0x7c
+#define VIDININITERR    0x80
+#define VIDINYDELTA     0x84
+#define VIDPIXBUFTHOLD  0x88
+#define VIDCHRMIN       0x8c
+#define VIDCHRMAX       0x90
+#define VIDCURLIN       0x94
+#define VIDSCREENSIZE   0x98
+#define VIDOVRSTARTCRD  0x9c
+#define VIDOVRENDCRD    0xa0
+#define VIDOVRDUDX      0xa4
+#define VIDOVRDUDXOFF   0xa8
+#define VIDOVRDVDY      0xac
+/*  ... */
+#define VIDOVRDVDYOFF   0xe0
+#define VIDDESKSTART    0xe4
+#define VIDDESKSTRIDE   0xe8
+#define VIDINADDR0      0xec
+#define VIDINADDR1      0xf0
+#define VIDINADDR2      0xf4
+#define VIDINSTRIDE     0xf8
+#define VIDCUROVRSTART  0xfc
+
+#define INTCTRL         (0x00100000 + 0x04)
+#define CLIP0MIN        (0x00100000 + 0x08)
+#define CLIP0MAX        (0x00100000 + 0x0c)
+#define DSTBASE         (0x00100000 + 0x10)
+#define DSTFORMAT       (0x00100000 + 0x14)
+#define SRCBASE         (0x00100000 + 0x34)
+#define COMMANDEXTRA_2D (0x00100000 + 0x38)
+#define CLIP1MIN        (0x00100000 + 0x4c)
+#define CLIP1MAX        (0x00100000 + 0x50)
+#define SRCFORMAT       (0x00100000 + 0x54)
+#define SRCSIZE         (0x00100000 + 0x58)
+#define SRCXY           (0x00100000 + 0x5c)
+#define COLORBACK       (0x00100000 + 0x60)
+#define COLORFORE       (0x00100000 + 0x64)
+#define DSTSIZE         (0x00100000 + 0x68)
+#define DSTXY           (0x00100000 + 0x6c)
+#define COMMAND_2D      (0x00100000 + 0x70)
+#define LAUNCH_2D       (0x00100000 + 0x80)
+
+#define COMMAND_3D      (0x00200000 + 0x120)
+
+/* register bitfields (not all, only as needed) */
+
+#define BIT(x) (1UL << (x))
+
+/* COMMAND_2D reg. values */
+#define TDFX_ROP_COPY        0xcc     // src
+#define TDFX_ROP_INVERT      0x55     // NOT dst
+#define TDFX_ROP_XOR         0x66     // src XOR dst
+
+#define AUTOINC_DSTX                    BIT(10)
+#define AUTOINC_DSTY                    BIT(11)
+#define COMMAND_2D_FILLRECT             0x05
+#define COMMAND_2D_S2S_BITBLT           0x01      // screen to screen
+#define COMMAND_2D_H2S_BITBLT           0x03       // host to screen
+
+#define COMMAND_3D_NOP                  0x00
+#define STATUS_RETRACE                  BIT(6)
+#define STATUS_BUSY                     BIT(9)
+#define MISCINIT1_CLUT_INV              BIT(0)
+#define MISCINIT1_2DBLOCK_DIS           BIT(15)
+#define DRAMINIT0_SGRAM_NUM             BIT(26)
+#define DRAMINIT0_SGRAM_TYPE            BIT(27)
+#define DRAMINIT1_MEM_SDRAM             BIT(30)
+#define VGAINIT0_VGA_DISABLE            BIT(0)
+#define VGAINIT0_EXT_TIMING             BIT(1)
+#define VGAINIT0_8BIT_DAC               BIT(2)
+#define VGAINIT0_EXT_ENABLE             BIT(6)
+#define VGAINIT0_WAKEUP_3C3             BIT(8)
+#define VGAINIT0_LEGACY_DISABLE         BIT(9)
+#define VGAINIT0_ALT_READBACK           BIT(10)
+#define VGAINIT0_FAST_BLINK             BIT(11)
+#define VGAINIT0_EXTSHIFTOUT            BIT(12)
+#define VGAINIT0_DECODE_3C6             BIT(13)
+#define VGAINIT0_SGRAM_HBLANK_DISABLE   BIT(22)
+#define VGAINIT1_MASK                   0x1fffff
+#define VIDCFG_VIDPROC_ENABLE           BIT(0)
+#define VIDCFG_CURS_X11                 BIT(1)
+#define VIDCFG_INTERLACE                BIT(3)
+#define VIDCFG_HALF_MODE                BIT(4)
+#define VIDCFG_DESK_ENABLE              BIT(7)
+#define VIDCFG_CLUT_BYPASS              BIT(10)
+#define VIDCFG_2X                       BIT(26)
+#define VIDCFG_HWCURSOR_ENABLE          BIT(27)
+#define VIDCFG_PIXFMT_SHIFT             18
+#define DACMODE_2X                      BIT(0)
+
+/* VGA rubbish, need to change this for multihead support */
+#define MISC_W  0x3c2
+#define MISC_R  0x3cc
+#define SEQ_I   0x3c4
+#define SEQ_D   0x3c5
+#define CRT_I   0x3d4
+#define CRT_D   0x3d5
+#define ATT_IW  0x3c0
+#define IS1_R   0x3da
+#define GRA_I   0x3ce
+#define GRA_D   0x3cf
+
+#ifdef __KERNEL__
+
+struct banshee_reg {
+  /* VGA rubbish */
+  unsigned char att[21];
+  unsigned char crt[25];
+  unsigned char gra[ 9];
+  unsigned char misc[1];
+  unsigned char seq[ 5];
+
+  /* Banshee extensions */
+  unsigned char ext[2];
+  unsigned long vidcfg;
+  unsigned long vidpll;
+  unsigned long mempll;
+  unsigned long gfxpll;
+  unsigned long dacmode;
+  unsigned long vgainit0;
+  unsigned long vgainit1;
+  unsigned long screensize;
+  unsigned long stride;
+  unsigned long cursloc;
+  unsigned long curspataddr;
+  unsigned long cursc0;
+  unsigned long cursc1;
+  unsigned long startaddr;
+  unsigned long clip0min;
+  unsigned long clip0max;
+  unsigned long clip1min;
+  unsigned long clip1max;
+  unsigned long srcbase;
+  unsigned long dstbase;
+  unsigned long miscinit0;	
+};
+
+struct tdfx_par {
+  u32 max_pixclock;
+
+  void __iomem *regbase_virt;
+  unsigned long iobase;
+  u32 baseline;
+
+  struct {
+     int w,u,d;
+     unsigned long enable,disable;
+     struct timer_list timer;
+  } hwcursor; 
+
+  spinlock_t DAClock;
+};
+
+#endif /* __KERNEL__ */
+
+#endif /* _TDFX_H */
+