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This code doesn't enable a variable aperture it just modifies the codebase
to allow me fix it up later
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that particular file. Its contents have changed a good bit since the
original sis code, and the original sis code didn't care much about
attribution since it routinely disclaims Precision Insight/VA Linux
from responsibility. Also, adjust formatting around license headers
(have a comment open immediately before the "Copyright" line, not as a
runon of any previous comments) for automatic processing into FreeBSD,
where /*- is used to signal the beginning of license headers for
automatic compilation of license lists.
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understandable: preinit -> load postinit -> (removed) presetup ->
firstopen postsetup -> (removed) open_helper -> open prerelease ->
preclose free_filp_priv -> postclose pretakedown -> lastclose
postcleanup -> unload release -> reclaim_buffers_locked version ->
(removed)
postinit and version were replaced with generic code in the Linux DRM
(drivers now set their version numbers and description in the driver
structure, like on BSD). postsetup wasn't used at all. Fixes the savage
hooks for initializing and tearing down mappings at the right times.
Testing involved at least starting X, running glxgears, killing
glxgears, exiting X, and repeating.
Tested on: FreeBSD (g200, g400, r200, r128) Linux (r200, savage4)
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This is Egberts code, ported to Pauls framework by me..
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weren't Lindent's because their comments didn't convert very well. A
bunch of other minor clean up with no code implact included.
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anything, and took up valuable KVA. While I'm in the area, clean up BSD
MTRR stuff some more.
Suggested by: jonsmirl
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for ring read pointer (Paul Mackerras)
Get rid of some superfluous stuff, minor fixes
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2.5.0. It still has some issues, including a flicker in the fps meter
in tuxracer and I've seen garbage left behind after moving/closing
windows. However, it's usable. Add the Option "EnablePageFlip" "YES" to
use it.
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DRM_*MEMORYBARRIER we had were related to an MMIO space. This means
arch-specific code on the BSDs, unfortunately. Also add
DRM_MEMORYBARRIER() and change the DRM_READMEMORYBARRIER()s that used
to be read/write barriers to it.
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