path: root/hw/kdrive/ati/ChangeLog

2005-08-07  Keith Packard  <keithp@keithp.com>

	* ati_video.c: (RadeonDisplayVideo):
	Build with modular X libraries and headers

2005-06-09  Eric Anholt  <anholt@FreeBSD.org>

	* ati.h:
	* ati_video.c:
	Axe a few dead fields from the port priv struct and add my name to 
	the "Copyright" line of the license to ati_video.c that already has my
	name in the text.

2005-06-09  Eric Anholt  <anholt@FreeBSD.org>

	* ati_dri.c:
	Perform a warnings sweep on hw/kdrive.  A number of these were my fault,
	but some come from others.

2005-06-09  Eric Anholt  <anholt@FreeBSD.org>

	* ati.c:
	* ati.h:
	* ati_draw.c: (ATIWaitMarker), (ATIGetOffsetPitch),
	(ATIUploadToScreen), (ATIUploadToScratch), (ATIDrawInit),
	(ATIDrawEnable):
	* ati_dri.c: (ATIDRISwapContext):
	* ati_video.c: (R128DisplayVideo), (RadeonDisplayVideo):
	- Replace the syncAccel hook in the kdrive structure with a pair of
	  hooks in the kaa structure: markSync and waitMarker.  The first, if
	  set, returns a hardware-dependent marker number which can then be
	  waited for with waitMarker.  If markSync is absent (which is the case
	  on all drivers currently), waitMarker must wait for idle on any given
	  marker number.  The intention is to allow for more parallelism when
	  we get downloading from framebuffer, or more fine-grained idling.
	- Replace the KdMarkSync/KdCheckSync functions with kaaMarkSync and
	  kaaWaitSync.  These will need to be refined when KAA starts being
	  smart about using them.  Merge kpict.c into kasync.c since kasyn.c has
	  all the rest of these fallback funcs.
	- Restructure all drivers to initialize a KaaInfo structure by hand
	  rather than statically in dubious order.
	- Whack the i810 driver into shape in hopes that it'll work after this
	  change (it certainly wouldn't have before this).  Doesn't support my
	  i845 though.
	- Make a new KXV helper to avoid duplicated code to fill the region
	  with the necessary color key.  Use it in i810 and mach64 (tested).

2005-02-28  Keith Packard  <keithp@keithp.com>

	* ati_reg.h:
	Add macrovision register defines

2005-01-24 19:37  anholt

	* ati_dma.c, ati_draw.c, ati_reg.h: Finish converting RB2D_DSTCACHE
	  to RB3D_DSTCACHE.  Remove an extra pixel cache flush in the idle
	  function.  Init an extra reg for r200, and annotate the
	  TCL_BYPASS better.  Also, clean up some style nits from the last
	  commit.

2005-01-24 18:39  keithp

	* ati.h, ati_draw.c, ati_reg.h, radeon_composite.c: Add tracing.
	  Hack Radeon cache registers to use 3D addresses.  Works on M6

2005-01-24 17:38  anholt

	* ati_dri.c: Silence a warning about uninitialized variable (though
	  it would be).

2005-01-20 08:22  anholt

	* ati_dma.c, ati_dma.h, ati_dri.c: Add a set of macros for dealing
	  with the repeated code to wait for a while reading a
	  register/attempting DMA.  Now it'll wait for a certain number of
	  seconds rather than a certain number of times through the loop
	  before deciding that it's timed out and resetting the hardware.
	  Also, add more timeout handling, and reset the draw state after
	  resetting the engine.

2005-01-19 23:28  anholt

	* radeon_composite.c: Use RadeonSwitchTo3D() instead of doing the
	  WAIT_UNTIL ourselves (RST3D() also does DC_FLUSH, which may be
	  important).

2005-01-19 23:09  anholt

	* ati_video.c: Add R200 XV support, and make R100 (hopefully) use
	  linear filtering instead of nearest.	Also, use RadeonSwitchTo3D
	  instead of doing the WAIT_UNTIL ourselves.

2005-01-19 17:09  anholt

	* ati_dma.c, ati_reg.h: Make R200 PDMA work -- primary queue sizes
	  are now 9 bits, not 8.

2004-12-22 10:39  anholt

	* ati_draw.c, ati_reg.h, radeon_composite.c: Back out the previous
	  day's broken R200 "fix" -- the same number of coords are always
	  emitted.  Fix the real problem, which was not enough regs being
	  initialized in ati_draw.c.  Fix a typo that was resulting in
	  alpha coming out as 0 * src or 0 * broken instead of src * 1 or
	  src * mask.  Assign the blending results to R0, as appears to be
	  necessary.  Unbreak the dst-alpha-blend-with-no-dst-alpha code.
	  Yow.	And set the right DMA count for the r200 traps code.

2004-12-21 01:51  anholt

	* ati_draw.c, radeon_composite.c: Fix r200 render (for real this
	  time?) by setting tex1_comp_cnt right for non-mask rendering.
	  Reenable it.	Also, R200TexFormats was used instead of R100 in
	  one place.  Harmless so far, because the formats were in the same
	  order.

2004-12-21 01:49  anholt

	* ati_dri.c: Whitespace nit.

2004-09-19 20:12  anholt

	* ati_draw.c, ati_reg.h, radeon_composite.c: Fix the R200 Render
	  code.  Composite and Trapezoids are now supported just as well as
	  on R100.

2004-09-19 03:57  anholt

	* ati_dri.c, ati_reg.h: Unbreak the AGP DRI case.  That was quite a
	  pile of broken code.

2004-09-13 23:26  anholt

	* ati.c, ati_reg.h: Add proper PCI/AGP detection, based on Mike
	  Harris's code for Radeon, but using the MMIO mirror of the bits
	  instead of config space.

2004-09-12 16:22  anholt

	* ati_draw.c: - Fix a segfault on VT switch with DRI.  Still dies
	  due to cursor   allocation troubles.	- Move the
	  RemoveBlockAndWakeupHandlers to match
	  RegisterBlockAndWakeupHandlers.  - Enable R100 trapezoid
	  "acceleration" when DRI is working, so that it   can be exposed
	  and worked on.

2004-09-12 16:01  anholt

	* ati_dri.c: Fix a bad argument missed in the previous commit for
	  ATIDRIDMA* functions.

2004-09-12 15:21  anholt

	* ati_draw.c: Move the RegisterBlockAndWakeupHandlers to before DRI
	  initialization.  The change to use that instead of manual
	  wrapping made the DMA dispatch come after the lock had been
	  dropped, causing lots of pain.

2004-09-12 13:31  anholt

	* ati.h, ati_dma.c, ati_dri.c: Reset the CCE/CP on engine reset,
	  and make the ATIDRIDMA functions take a more useful argument.

2004-09-12 13:19  anholt

	* ati_draw.c: Add missing kaa.h include for kaaInitTrapOffsets.

2004-09-12 13:02  anholt

	* ati_dri.c: Fix handling of is_agp.  is_agp is whether the card is
	  actually AGP, while using_agp should say whether AGP is being
	  used as part of DMA/DRI.

2004-09-12 12:52  anholt

	* ati_dma.c, ati_dma.h, ati_dri.c: Improve error handling,
	  especially in the DRI case.  Do some FatalErrors instead of
	  ErrorFs for things that are really bad, and put limits on some
	  loops.  Now, sometimes instead of hanging the entire system, we
	  (mostly-) cleanly drop to console when the card has hung.

2004-09-11 02:28  anholt

	* ati.h, ati_dma.h, ati_draw.c, ati_draw.h, ati_reg.h,
	  r128_composite.c, radeon_composite.c: - Add disabled WIP
	  trapezoid code for R128 and R100.  The R128 rendering   is not
	  doing an add of 1 per triangle like I hoped, and instead seems
	  to be saturating all the pixels or something.  The R100
	  acceleration	 renders pretty well, with some gaps.  Note that
	  both are slower than	 software due to lack of DMA to submit
	  vertices.  - Mostly fix R128 and Radeon transform support,
	  including supporting	 bilinear filtering on R128.  Subpixel
	  offsets are still probably an   issue (reported by rendercheck),
	  but I want to make 100% sure about my   understanding of the
	  protocol before changing everybody, including fb.  - Add support
	  for dst formats without alpha to R128 Composite.  - Remove the
	  R128 Blend code, which has long outlived its usefulness.    (I
	  kept it around for one reason: It could be useful for the    w/h
	  > 1024 case with no mask and a non-src op.  That seems pretty
	  infrequent and not worth the trouble).

2004-07-24 10:02  keithp

	* ati.c: Check for mmio before restoring crtc/crtc2 pitch registers

2004-07-22 11:17  keithp

	* ati.c, ati.h, ati_cursor.c, ati_reg.h: 2004-07-22  Keith Packard
	  <keithp@keithp.com>

		  reviewed by: <delete if not using a buddy>

		  * hw/kdrive/ati/ati.c: (ATISetOffscreen), (ATISetPitch),
		  (ATIRandRSetConfig), (ATIPreserve), (ATIRestore),
	  (ATIEnable):
		  * hw/kdrive/ati/ati.h:
		  * hw/kdrive/ati/ati_cursor.c: (RadeonLoadCursor),
		  (ATIUnloadCursor), (ATICursorEnable):
		  * hw/kdrive/ati/ati_reg.h:
		  Correct pitch so that accelerator can run on 1400x1050
	  screens.
		  Add a few more register sets for cursors.

2004-07-19 05:07  anholt

	* radeon_composite.c: Add support for a8b8g8r8 and x8b8g8r8
	  pictures, which showed up frequently with metacity usage.

2004-07-19 04:42  anholt

	* ati_cursor.c: Breakage in last commit to this file:
	  pCurPriv->area isn't set up until Enable, these days.

2004-07-19 04:19  anholt

	* ati_draw.c: Set the right number of texture coordinates for r200
	  Render support (still disabled, needs to be tested).

2004-07-19 04:16  anholt

	* r128_composite.c, radeon_composite.c: - Add Radeon picture
	  transform support.  - On R128, don't refer to an old Composite's
	  mask transform when the   current Composite doesn't have a mask.
	  - Staticize some global variables in r128_composite.c.

2004-07-19 00:53  anholt

	* ati.c, ati.h, ati_cursor.c, ati_draw.c, ati_draw.h: Use the
	  offscreen memory manager as much as possible to do the
	  reservation of memory at startup.  Do some drive-by cleanups
	  while I'm here (sorry!).

2004-07-19 00:20  anholt

	* r128_composite.c: Add support for transforms of textures on R128.

2004-07-03 03:23  anholt

	* r128_composite.c: Clean up Rage 128 composite code.  Now it
	  composites more operations correctly and is simpler.

2004-06-27 17:48  keithp

	* ati.c, ati.h, ati_cursor.c, ati_draw.c: 2004-06-27  Keith Packard
	   <keithp@keithp.com>

		  * hw/kdrive/ati/ati.c: (ATICardInit), (ATISetOffscreen),
		  (ATIScreenInit), (ATIRandRSetConfig), (ATIRandRInit),
		  (ATIFinishInitScreen), (ATIEnable):
		  * hw/kdrive/ati/ati.h:
		  * hw/kdrive/ati/ati_cursor.c: (ATICursorInit):
		  * hw/kdrive/ati/ati_draw.c: (RadeonSwitchTo2D),
	  (RadeonSwitchTo3D),
		  (ATIBlockHandler), (ATIWakeupHandler), (ATIDrawEnable),
		  (ATIDrawDisable), (ATIDrawFini):
		  Separate out off-screen allocation from Init.
		  Fix Enable to update off-screen addresses.
		  Wrap RandR to update off-screen addresses.

		  * hw/kdrive/fbdev/fbdev.c: (fbdevMapFramebuffer):
		  Set off_screen_base and memory_size fields correctly.

2004-06-25 21:13  keithp

	* ati.c, ati_cursor.c, ati_draw.c, ati_reg.h: 2004-06-25  Keith
	  Packard  <keithp@keithp.com>

		  * hw/kdrive/ati/ati.c: (ATIScreenInit):
		  * hw/kdrive/ati/ati_cursor.c: (ATIMoveCursor),
		  (ClassicAllocCursorColors), (ClassicSetCursorColors),
		  (ClassicRecolorCursor), (ClassicLoadCursor),
	  (RadeonLoadCursor),
		  (ATIRealizeCursor), (ATISetCursor), (ATICursorEnable),
		  (ATIRecolorCursor):
		  * hw/kdrive/ati/ati_draw.c: (ATIDrawFini):
		  * hw/kdrive/ati/ati_reg.h:
		  Add ARGB cursor support for Radeon cards.

2004-06-10 12:22  anholt

	* ati_draw.c: - Pass the right pixel mask (all ones) in to
	  PrepareSolid in the	solid-fill-based composite acceleration.  -
	  Use a real pixmap when doing an UploadToScratch (For
	  pDrawable->type   == DRAWABLE_WINDOW, you need to get the backing
	  pixmap).  - Pass back the x/y offsets from kaaGetOffscreenPixmap
	  unconditionally, because they'll be used in the scratch case.  -
	  Turn on the Render acceleration for Rage 128 and Radeon
	  100-series at   last!

2004-06-10 02:50  anholt

	* ati_draw.c: Align scratch area offsets to the offscreen byte
	  alignment.

2004-06-10 01:37  anholt

	* ati_dma.c: Oops, testers reported that the last patch actually
	  didn't work (conflicts occurred), so the R300 PDMA doesn't work.
	  Disable.

2004-06-09 22:57  anholt

	* ati_dma.c, ati_microcode.c: Bug #242: Fix setup of R300 cards, by
	  providing R300 CP code from volodya-project and initializing
	  PDMA.

2004-05-17 13:18  anholt

	* Makefile.am, ati.c, ati.h, ati_cursor.c, ati_dma.c, ati_dma.h,
	  ati_draw.c, ati_draw.h, ati_dri.c, ati_microcode.c, ati_reg.h,
	  ati_video.c, r128_composite.c, radeon_composite.c: Overhaul of
	  the ATI driver: - Add monochrome hardware cursor support.  - Try
	  to auto-detect AGP support for DRI on Radeons.  And fail.
	  Detect it properly on R128.  - Set up card for pseudo-DMA if
	  possible.  Convert 2D rendering   code to prepare DMA packets
	  only.  Use generic code to decode   DMA packets to MMIO if PDMA
	  is unavailable.  Add WIP code to   support "real" DMA without DRM
	  support.  - Dispatch pending DMA commands when the server sleeps.
	  Otherwise   some things, such as typing in an xterm, wouldn't
	  show up for a   time.  - Fix Radeon Composite acceleration in
	  many ways, and add Rage 128	Composite acceleration.  Disable
	  them both due to   still-not-understood issues they have.  They
	  fail with In, Out,   AtopReverse, and Xor, and text rendering is
	  strange.  - Add textured XV support for R100 and Rage 128.  No
	  brightness/sat   controls, but it does support multiple ports,
	  and cooperates with	Composite.  - Add WIP code for hostdata
	  uploads.  - Many cleanups and fixes.

2004-01-24 21:31  anholt

	* ati_dri.c: Disable GLX visuals code on !GLXEXT, and remove a
	  useless prototype.

2004-01-24 17:30  anholt

	* ati.c, ati.h, ati_dri.c, radeon_composite.c: - Add glx visuals
	  code based on XFree86's Radeon driver.  - Reserve areas for
	  back/depth/span when USING_DRI && GLXEXT.  This   would be better
	  in a TransitionTo3d, but we'd need to work with   the offscreen
	  memory manager for that.  - Misc. fixes to ati_dri.c for DRI+GLX.
	  Needs more work still.

2004-01-24 17:16  anholt

	* ati_draw.h: Oops, turn fallback output back off.

2004-01-24 17:04  anholt

	* ati_dri.c: Whitespace cleanup.

2004-01-10 16:10  anholt

	* ati_draw.c, r128_blendtmp.h: Support 1x1 repeat sources in R128's
	  Blend.

2004-01-09 00:43  anholt

	* ati.c, ati.h, ati_draw.c, ati_draw.h, ati_dri.c: Change PCI ID
	  information field to be one of r128, r100, r200, r300.  This is
	  all the information we need so far.  Put that information into
	  atic, and use it correctly in the code (unlike before).

2004-01-08 12:18  anholt

	* ati_draw.c, radeon_composite.c: Compile fixes for non-DRI case
	  and for non-C99 compiler.

2004-01-08 00:25  anholt

	* ati.c: Forced commit: Previous commit included the removal of the
	  8192 scanline limit on offscreen memory in the fbdev case.  I
	  remember daenzer (who originally put that code in) saying he
	  wasn't sure of it, and there doesn't seem to be any reason for
	  that limit given how acceleration is done.

2004-01-08 00:16  anholt

	* ati.c, ati.h, ati_draw.c: - Add a new UploadToScratch kaa hook
	  for putting the data for a single   pixmap into temporary
	  offscreen storage.  Subsequent UploadToScratch   may clobber the
	  data of previous ones.  This allows hardware	 acceleration of
	  composite operations on glyphs.  - Add a new UploadToScreen kaa
	  hook for doing the actual moving of	data to framebuffer.  This
	  would allow us to do things like hostdata   blits or memcpy to
	  agp and then blit.  - Add an UploadToScreen on ATI which is just
	  memcpy, but which   will be replaced with a hostdata blit soon.
	  - Add UploadToScratch on ATI and reserve 64k of scratch space.
	  This	 provided a 3x speedup of rgb24text on my Radeon.

2004-01-06 18:30  anholt

	* radeon_composite.c: Speed things up slightly by removing Z values
	  from emitted vertices and by emitting as a tri fan rather than a
	  tri list.  A rect list would save an additional vertex (out of 4)
	  per rectangle, but there's no measurable speed difference and the
	  tri fan may be useful when transforms come into play.

2004-01-04 12:47  anholt

	* ati_draw.c, radeon_composite.c: - Correctly set the texture
	  coordinate set source for the   second texture unit.	- Re-enable
	  Radeon's Composite accel now that fonts work	 again.

2004-01-03 03:46  anholt

	* ati_draw.c, radeon_composite.c: - Add more Composite operations,
	  including Saturate, to   Radeon Composite accel.  I don't 100%
	  trust that the math	works for Saturate, but I can't tell from
	  existing information.  - Fix texture pitch fallback checks.  -
	  Fallback when src or mask have transforms.  - Disable Radeon
	  Composite accel until the offset thing is fixed.  - Set
	  offscreenPitch to 64 on Radeon thanks to new information   and a
	  kaa fix.  Fixes acceleration at width!=1024.

2003-12-31 15:24  anholt

	* radeon_composite.c: Some strange \240 character snuck into the
	  original commit of this file.

2003-12-30 00:45  anholt

	* ati_drawtmp.h: There's never a copy between different depths.
	  Remove the check.

2003-12-30 00:23  anholt

	* Makefile.am, ati_draw.c, ati_draw.h, ati_drawtmp.h, ati_reg.h,
	  radeon_composite.c: - Add new Composite hook for kdrive drivers,
	  which only ensures that   the pixmaps are offscreen and don't
	  have alpha maps.  It is the	last case checked before going to
	  software fallback - Use the new Composite hook in the ati driver
	  to implement	 acceleration of most Composites that get done in
	  an xcompmgr	environment on r100 series cards.  It is only
	  available when using	 the DRM.  There are still some corruption
	  issues, but the DRI is   still non-default and I need to get this
	  into version control.

2003-12-29 01:04  anholt

	* Makefile.am: Add dependency lines so that servers are rebuilt
	  when server libraries are changed.

2003-12-28 22:24  anholt

	* Makefile.am, ati.c, ati.h, ati_draw.c, ati_draw.h, ati_drawtmp.h,
	  ati_dri.c, ati_dri.h, ati_dripriv.h, ati_reg.h, ati_sarea.h,
	  ati_stub.c, r128_blendtmp.h, r128_common.h, r128_sarea.h,
	  radeon_common.h, radeon_sarea.h: Merge dri-0-1-branch to trunk.
	  Notable changes: - Add libdrm and libdri.  Portions of the DRI
	  extension are stubbed   out.	- Use the DRM in the ATI driver
	  when available.  This provides a   minor performance improvement
	  in x11perf, and opens the possibility   of using the 3d hardware
	  for acceleration in the future.  - Implement solid fill
	  acceleration for Composite in KAA.  - Implement Blend hook for
	  Composite and use it on r128.  - Fix a bug of mine that resulted
	  in overuse of offscreen memory.  - Fix many miscellaneous bugs in
	  ATI driver and add PCI IDs.

2003-12-28 21:10  anholt

	* ati_drawtmp.h, r128_blendtmp.h: - Disable libdrm verbosity.  It
	  isn't important enough yet to make   a run-time flag for it.	-
	  Fix the (void)atic; tricks to quiet unused variable warnings in
	  ATI template files.  Mixing statements and variable defines works
	  in newer compilers, but not pdx's.

2003-12-28 01:16  anholt

	* ati.h, ati_draw.c, ati_draw.h, ati_drawtmp.h, ati_dri.c,
	  r128_blendtmp.h: - Allow acceleration between same-depth pixmaps,
	  rather than between	anything and a dst that matched the screen
	  depth (fixes corruption   for non-screen-depth src and makes more
	  acceleration possible).  - Add ATI_FALLBACK macro and use it to
	  allow verbose descriptions of   why hardware acceleration fails.
	  - Check that src and dst alignment meet requirements of the card
	  before accelerating.  The BIOS may set up screens that don't
	  meet	 the requirements.  - Fix the R128 offset alignment (32
	  bytes, not 8).  - Enable Blend operation even if screen is 24bpp
	  (it will fail if the	 dest is 24bpp anyway).

2003-12-27 02:46  anholt

	* ati_reg.h, r128_blendtmp.h: Properly initialize texture registers
	  in Blend.  Fixes problems with blending code such as whiteness in
	  test-render, or no blending at all.

	  Tested by:	  andersca

2003-12-23 14:29  anholt

	* Makefile.am, ati_draw.c, ati_drawtmp.h, ati_reg.h,
	  r128_blendtmp.h: - Implement acceleration of Composite on R128
	  when there is no mask,   no transformation, no repeat, and only
	  certain ops are used.  - Add debugging output for software
	  fallbacks for Composite.  - Allow pixmaps in offscreen that don't
	  match root depth.  - Clean up some mess in ati_reg.h.

	  Many thanks to andersca for a lot of this code.

2003-12-09 21:01  anholt

	* ati_draw.c: Add missing kaaDrawFini to ATI driver.

2003-12-01 14:56  anholt

	* Makefile.am, ati.c, ati.h, ati_draw.c, ati_draw.h, ati_drawtmp.h,
	  ati_dri.c, ati_dri.h, ati_dripriv.h, ati_reg.h, ati_sarea.h,
	  ati_stub.c, r128_common.h, r128_sarea.h, radeon_common.h,
	  radeon_sarea.h: - Initial add of enough of the DRI to create a 2d
	  driver that uses   the DRM for its acceleration.  - Converted the
	  ATI driver to use the DRM to execute rendering   commands using
	  DMA instead of MMIO when available.

2003-11-30 20:33  anholt

	* Makefile.am, ati.c, ati.h, ati_stub.c: - Add fbdev mode-setting
	  backend to Xati.  It and vesa are compiled   in when available,
	  with fbdev being used by default.  - Use depth 16 by default when
	  vesa backend is used.  - Add MMIO defines for PowerPC (should be
	  in a common location).

	  Many thanks for Michel Daenzer for much of this code.

2003-11-30 19:15  anholt

	* ati.c: Add more RV250 PCI IDs.

2003-11-30 17:46  anholt

	* ati_draw.c: Remove sys/io.h inclusion from some files that didn't
	  need it, and change asm/io.h to sys/io.h in vga.c, which newer
	  Linux complains about.

2003-11-25 14:39  anholt

	* ati.c: Add new Radeon 9200 PCI IDs.

2003-11-23 02:12  anholt

	* ati_draw.c: - Fix Radeon offscreen pixmap pitch alignment.  -
	  Remove usleeps from idle and waitavail code, recommended by
	  keithp.  - Add a workaround for apparent broken acceleration with
	  Rage 128 and	 offset alignment with 8-bit acceleration (24-hack
	  and plain 8-bit).  - Minor cleanup of setup code.

2003-11-22 18:08  anholt

	* ati.c: Add RV250 PCI IDs.

2003-11-19 23:49  anholt

	* ati.c, ati.h, ati_draw.c, ati_reg.h: - Fix a bug in pitch
	  alignment for offscren pixmaps.  - Add 24-bit acceleration for
	  Xati using the 8-bit trick from mach64.  - Add offscreen pixmap
	  support to Xati.

2003-11-19 16:05  anholt

	* ati.c, ati_draw.c: - Fix confusion of depth/bitsPerPixel in
	  ati_draw.c - Disable acceleration with 24bpp due to apparent
	  broken acceleration.	  Accel at 24bpp was the cause of the
	  crashes when people tried to use    any depth over 16.  XFree86
	  doesn't support 24 either.  - Disable at < 8bpp, too.  - Add the
	  other Rage 128 PCI IDs.  - Remove unnecessary setting of scissor
	  registers (only default   scissor gets used).

2003-11-19 00:32  anholt

	* .cvsignore, Makefile.am, ati.c, ati.h, ati_draw.c, ati_reg.h,
	  ati_stub.c: - Add PCI information (device/vendor id, bus
	  location) to KdCardAttr   to help with ati, and future DRM
	  drivers.  - Add new "ati" kdrive driver.  It has ancestry in the
	  r128 driver	from andersca, but took a detour through being the
	  WIP SiS 300	driver on the way.  It supports Radeons (tested on
	  QD VIVO and 7500)   and Rage 128.  Current limitations include
	  that it requires depth 16   and that the other Rage 128 PCI IDs
	  aren't included yet.