Previously, we were attempting to give both planes equal space in the FIFO
to be fair. However, larger modes require more fifo space, so split it based
on the relative HDisplay of the modes. This should resolve some fifo underrun
issues with differently-sized displays, or single large ones.
Bug #16169.
This allows us to only call i830WaitSync once every 128 calls to composite
rather than on every call. However, we do need to also call MI_FLUSH to
avoid the vertex cache getting in our way, (since our "separate" buffers
are all allocated as one contiguous chunk).
Now that the VBIOS code supports it, we can use the general features block to
detect whether a TV connector is present on a given platform.
Reviewed by Nanhai Zou.
Improve the VBIOS feature detection and use it to find whether the platform
supports spread spectrum clocking. Use the specified reference clock, but
disable SSC if multiple heads are active, since it can cause problems in cloned
configurations.
Reviewed by Nanhai Zou.
In hindsight, this is obvious, since nowhere do we tell the FBC unit how much
memory it has available. We need to make sure the compressed buffer is big
enough to handle the uncompresed buffer, both in terms of vertical size and
total framebuffer size, or the compressor could overwrite the memory
immediately following the compressed buffer.
On #16418, Evgeniy Manachkin <sfstudio@mail.ru> reported that
last asus and eeepc backlight patch is wrong, as acpi_video0 method
will take priority and doesn't work.
As xvmc rendering result has already been in fb, we shouldn't
do extra copy on it. Although special care is required for i915
xvmc surface pitch alignment, which must be at least 1KB aligned.
So video display function should take it into acount instead of
always setting Y pitch to be double of U/V pitch.
Don't setup one-time mc context everytime, as the content is always
unchanged. And several structs got packed layout inside to ease static
state initialization.
When page flipping is enabled, we need to make sure any changes to the front
buffer are reflected in the back buffer(s) or corruption might occur at page
flip time. So make the damage handler work on 965 by adding appropriate tiling
flags and pitch adjustments.
The DRM supports disabling of vblank interrupts when not in use, but in order
to function properly it must also be aware of mode setting, which will reset
the frame counter to 0. Add code to call into the DRM before and after mode
setting, so that it can account for any lost vblank events.
Zhenyu Wang
Jesse Barnes
Eric Anholt
Jesse Barnes
lipeng
Julien Cristau
Carl Worth
Jesse Barnes
Stefan Dirsch
Dave Airlie
Roland Test-tools Bär
Hong Liu