These require that the status page be referenced by a pointer in GTT, rather
than phsyical memory. So, we have the X Server allocate that memory and tell
us the address, instead.
Remove anything dealing with the unused 'HWZ' ring buffer, do round robing of
available BPLs internally and rename static_state_offset to static_state_start.
In the alloc sub-ioctl, use the cliprects to calculate the binning rectangles
and per-bin cliprects. Then in the render sub-ioctl repeat each bin batchbuffer
for each bin cliprect.
* Feed the HWB synchronously, and print out any batchbuffer commands it
generates.
* Put the rendering commands into the normal ring buffer.
* Emit static state in the rendering stream, the HWB doesn't support it.
Various other minor changes.
Handle relative as well as absolute target sequence numbers.
Return error if target sequence has already passed, so userspace can deal with
this situation as it sees fit.
On success, return the sequence number of the vertical blank when the buffer
swap is expected to take place.
Also add DRM_IOCTL_I915_VBLANK_SWAP definition for userspace code that may want
to use ioctl() instead of drmCommandWriteRead().
(cherry picked from d5a0f10751 commit)
This uses the core facility to schedule a driver callback that will be called
ASAP after the given vertical blank interrupt with the HW lock held.
(cherry picked from 257771fa29 commit)
i915 vblanks can be generated from either pipe a or b, however a disabled
pipe generates no interrupts. This change allows the X server to select
which pipe generates vblank interrupts.
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.
