Some output detection requires a crtc for load detection, perform all of the
output detection before allocating any crtcs so that there will be a free
crtc for any load detection. Avoids losing TV detection when two monitors
are connected.
While the register is laid out suggesting that you can read a low value while
driving the output high, and the I2C spec seems to indicate that you should be
able to as well, and on some hardware this works successfully, on the i865 and
perhaps some other chips it doesn't. So, if we're not holding the clock or
data pin low during GetBits, tristate the pin so that we can successfully read.
This fixes i865 analog (VGA) DDC so it successfully sees slave acks.
Also, improve the I2C bit-banging debugging.
In the past, the GTT has always been sized just large enough to map the whole
graphics aperture. However, apparently on the G965 that isn't the case, and
it is actually 512KB on hardware with a 256MB aperture. This resulted in X
not bothering to allocate memory for 256KB that it thought was already mapped
into stolen memory, and thus garbage rendering (particularly visible in large
video modes that displayed this unallocated memory). The kernel happens to
get the right answer by hardwiring a 512KB GTT size already, but that may not
be true on future hardware.
Instead, we use a convenient field in PGETBL_CTL that's specifically for the
GTT size rather than the aperture size, which gets us the answer we want.
This reverts commit 997e8c9bb4.
The GTT is definitely located at the end of stolen memory. This commit
apparently worked around mis-estimation of the GTT size.
This also replaces calls to compat code with the real names of the functions,
and slips #defines to an i830-namespaced version in when doing compat.
The current server version (7.1.99.2) is still left as requiring compat code,
since the version hasn't been bumped yet.
This also fixes some failures to call the compat code, and some failures to
actually compile the compat code. Oops.
Now that driver-independent code manages array of crtcs, let it track
the count and just have the driver compute how many there are in
a separate variable.
As part of the separation of driver-dependent from driver-independent code,
the interactions with RandR are moving entirely out of the driver, which
means the driver shouldn't even know about RandR, while the
driver-independent code does.
Place crtc/output in separate structure at head
of driver private structure. Use this from the config code
to make it driver-independent. Still lots of effectively driver
independent code that continues to use driver dependent stuff,
but that will change.
Outputs and Crtcs are now split between 'generic'
and 'driver specific' pieces in the hope that more code
will be able to migrate to the xf86-generic layer.
Right now, the code remains tangled together, significant
work remains to tease the pieces apart. First the code
needs to be made to actually work as-is though.
Using pre-init computed RandR information, make reasonable
default choices for the output configuration at startup time.
Either some preferred size or a size which yields 96dpi is chosen,
from which other monitors are set to a similar size. The largest
size sets the screen size.
This needs to be extended to respect config file settings, but
those have not been defined yet.
RandR DIX code is preparing for xf86 drivers that want to allocate RandR
objects at PreInit time. This patch adapts to that change without taking
advantage of it.
Conflicts in PipeSetMode were resolved to use the keithp changes
that pushed more modesetting stuff into the per-pipe function.
Switched availablePipes to num_pipes.
Used modesetting default output configuration.
Keith Packard
Keith Packard
Eric Anholt
Keith Packard
Keith Packard
Keith Packard