Now, we allocate one single block of memory for cursors, and either succeed or
fail once, rather than trying to support partial fallback modes that generally
resulted in pain due to being untested. In particular, this fixes cursors on
FreeBSD, which only allowed one large physically-contiguous allocation.
This currently only matters when the DRM memory manager is not available and
Option "Legacy3D" "off" is specified, but that hasn't always been the case and
might change again in the future.
This gets correct clocks detected on most harware. The SSC is always assumed
to be 66Mhz, which may not be true, but we'll fix that when we find example
hardware.
Also, add code for setting the encoder power state like the BIOS does, but this
doesn't appear to work. We do much more than the BIOS does in powering things
down, so perhaps that's interfering somehow.
With the new mode setting code, rotation is handled outside of the driver,
so the old usage of the 'shadow' module is no longer needed. Code to
initialize the crtc structures has been moved out of the driver and into the
modes code.
The previous code claimed to set the depth buffer up as Y tiled, but due to
lack of implementation in SetFence, it ended up being X tiled. Actually
setting the Y tiling flag in the new version broke the depth buffer, so just
switch the depth buffer to X tiling, which appears to work fine.
This is a partial revert of 7358642e64
If we don't allocate it now, when the DRM version is too low there won't be any
memory allocated and DRI will fail. Instead, waste the memory in the i915tex
case for now, and leave fixing it right (check DRM version up front and decide
which memory manager to set up) to later.
Guard code that dereferences pI830->third_buffer with tests for that instead of
pI830->TripleBuffer. It could happen that we want to enable triple buffering
but (temporarily) can't because the third buffer couldn't be allocated.
Make the application of crtc desiredModes generic code instead of
per-driver by creating xf86SetDesiredModes from the code that was in EnterVT
and calling it.
Also, move the frame buffer clear until just before mode setting to make
sure things are mapped correctly.
Code to drive the global configuration from a single mode setting operation
(from RandR 1.1, XFree86-VidModeExtension or XFree86-DGA) has been included
in the X server now, so remove it from this driver.
Eric Anholt
Keith Packard
Michel Dänzer
Dave Airlie
Alan Hourihane
Wang Zhenyu
Keith Packard