A number of other interfaces of ours don't allow buffer offsets to be updated
after screeninit. This attempts to catalog why for each one, so that they
can be fixed one by one.
This happens to restore the EXA offscreen allocator for now, as a fixed-offset
object.
If not available, AIGLX init will fail. While here, simplify DRIINFO tests
since we refuse to init with a version queried less than the version we
compiled against, anyway.
To do this, we have to deal with buffer offsets being set at EnterVT time
instead of screen init time. We've wanted to move this direction for a long
time, but there are repercussions. The EXA offscreen memory manager has to
be disabled, because it can't be moved. That will be replaced by BO-backed
pixmaps soon. Also unresolved is whether our moving
front/back/depth/texture buffers will break the classic-mode DRI driver.
This code doesn't actually work yet.
This is a step towards being able to expose buffer objects through the screen
private to DRI clients, instead of having them have to use the fake buffer
object type.
This fails in two ways. First, the kernel memory manager is not currently
suitable for doing the physical allocations we need, so we still use AGP for
those. Additionally, the DRI lock can't be initialized early enough for us, so
these buffer object allocations fail. This will be fixed by improving the
DRM interface.
CRT blanking needn't be adjusted to perform load detection on 9xx chips, and
the 8xx load detection path now adjusts blanking just during load detection.
Adjusting the blanking interval turned out to cause many monitors to fail to
sync.
If the pipe or output have been set to DPMSOff, then load detection will not
work correctly. Also, share the load detection configuration code between
crt and tv outputs.
Instead of always adding blanking to mode lines, use the FORCE_BORDER option
on i9xx hardware where it works, and dynamically add a bit of border if
necessary on i8xx hardware to make load detection work. This may cause
flashing when a usable crtc is not otherwise idle when load detection is
requested.
The upper bits would have been inappropriately dropped on G33-class hardware,
and on G965-class hardware in a 32-bit environment. The only use of physical
addresses on these should be for FBC, though, and FBC requires addresses
below 4GB. This is unresolved.
- change framebuffer option name to "FramebufferCompression"
- add new "Tiling" option (controls all tiling, not just front buffer)
- add debug message to fb compression enable/disable routines
- update man page with new options
Jesse Barnes
Eric Anholt
Zhenyu Wang
Brice Goglin
Xiang, Haihao
root
Dave Airlie
Keith Packard
Jesse Barnes
Jesse Barnes