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It's been broken for years now, and KMS offers a much better chance of getting
this working sensibly without making a mess of the 2D driver.
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It never worked with any upstream linux kernel, and is quite heavily
deprecated. A new solution based around DRI2 will probably be
forthcoming. Pageflipping itself is next.
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This may well explain why XAA never worked well on tiled front buffers;
tiled buffers require a different pitch programming on 965 than non-tiled
buffers, in dwords rather than bytes.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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Front buffer tiling is now disabled with G965 and XAA. Some of the acceleration
that i830_xaa.c does can't be supported on tiled buffers.
Adds a tiling field to struct i830_memory, and uses it instead of separate
variables for each potential tiled buffer.
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The 915 and earlier appear to respect the fence registers, while only the 965
requires the per-operation tiling setting and pitch shifting. This will also
fix issues with rendering on the 965 involving multiple cliprects, where the
pitch would get divided repeatedly.
This removes the offset < 4096 fallback, which essentially resulted in no
acceleration to tiled buffers, hiding the issues.
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Be sure to check G33 chip type in:
- sdvo output
- Y-major tile
- crt detect
- and xaa composite
Sorry for that I should have fixed them very earlier...
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The server rotation code is now using the root window in IncludeInferiors
mode rather than using the screen pixmap. Change the XAA Composite code
to check for this case now.
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Conflicts:
src/i830.h
src/i830_dri.c
src/i830_dri.h
src/i830_driver.c
src/i830_memory.c
src/i830_xaa.c
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The previous allocator worked in multiple passes, with (at least) one of
setting up allocations, another to attempt to adjust those for tiling, and
then a pass to set up the offsets and fix them in memory.
The new allocator is simpler, allocating memory immediately if possible,
setting up tiling up front, and choosing offsets immediately. AGP memory
is only allocated to back actual memory used, saving some memory that would
have been allocated for padding previous. It will also allow dynamic freeing
and reallocation of memory, which will be useful for framebuffer resizing.
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Need to bump the DRI DDX version minor for the added SAREA fields.
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The now-generic (kind of) EXA code will be cleaned up and moved to generic
files in a later commit.
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I830EntityIndex is shared between 810 and newer driver.
Move most EXA rendering state into I830 structure.
Declare shared variables in shared header files rather than .c.
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NULL vs. 0
make some variables static
remove redundant variables
There are only a few sparse warnings left now: some bitfield warnings
and a few 'mixing code and declarations' warnings from the ring macros.
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Conflicts:
src/i915_exa_render.c
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Conflicts:
man/i810.man
src/Makefile.am
src/i830_accel.c
src/i830_dga.c
src/i830_driver.c
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ones for EXA support when available). Also, add an abstraction of XAA/EXA
MarkSync and WaitSync functionality so we don't need to sprinkle the ifdefs all
over, and correctly use them.
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