It may be that the LVDS chips need to be DVOA and GPIOB only on mobility
devices with them, and DVOC/GPIOE on non-mobility like this 845. But until
more examples are found, just make this one device probe.
On hardware containing one of these chips (generally single pipe with an LVDS
connected), it's probably better to try to enable it and fail in some cases
than to not probe the output at all.
This branch changes i830_memory.c's allocator to use TTM when available to
allocate memory, which also allows TTM to control almost the entire aperture.
As a result, our front/back/depth buffers are created as real buffer objects,
which may be used by the DRI driver instead of the fake buffer type in TTM.
The updated DRM with bo_set_pin ioctl is required, to allow us to pin and
unpin our buffers as needed.
We want to associate plane A with pipe B on pre-965 mobile chips, since that's
the only way to get framebuffer compression on the builtin LVDS on those
platforms. However, if we do this swapping and DRM isn't aware of it, we may
end up requesting vblank events for the wrong pipe, or setting up SAREA buffer
swap state incorrectly.
This mod checks whether DRM supports the new plane->pipe swapping behavior, and
only enables the swapping if so. This should fix the bugs Lukas found and
debugged. Reviewed by Michel Danzer.
From spec, i915 engine uses green channel when reading from 8bit
color buffer for blending, and also writes back green channel.
Fix blend factor in dest alpha case by using dest color instead.
Now rendercheck can pass a8 tests.
Uncomplicated API transistions for libpciaccess usage:
Legacy xf86 API libpciaccess API
--------------- ----------------
xf86ReadPciBIOS pci_device_read_rom
pciReadWord pci_device_cfg_read_u16
pciWriteByte pci_device_cfg_write_u8
And, more use of the API-independent DEVICE_ID/SUBVENDOR_ID/SUBSYS_ID macros
to pull PCI identification data from the underlying structure.
Using libpciaccess requires a different type for PciInfo (struct pci_device
instead of pciVideoPtr) and it requires knowing which BAR each memory region
needs to be mapped from. Add these definitions to the driver private record
along with the includes necessary to use libpciaccess.
libpciaccess has a new structure that holds the PCI identifier data; borrow
macros from the mga driver to work with either the old xf86-specific
structure or the new libpciaccess structure.
Detect whether the target X server uses libpciaccess, using it in the driver
compilation as necessary. This change means that utilities that used to use
libpciaccess will not do so unless the driver itself uses libpciaccess. Yes,
that could be fixed, but it doesn't seem that important.
This patch does not include any code changes necessary to actually have the
driver build against an X server using libpciaccess.
This requires EXA 2.2 (server 1.3) for rotated performance with EXA, because
the i830_memory.c allocation may not fall within what EXA considers the
offscreen area, so the PixmapIsOffscreen hook is needed.
This should fix issues with XV being allocated into XAA's tiled pixmap
cache and resulting bad rendering. Its also brings us closer to being able
to shrink the size of the pixmap cache on XAA, which is of limited utility.
Add a new 'plane' field to the intel_crtc private structure for tracking
planes separate from pipes. This allows pre-965 chips to use plane A
on pipe B, enabling framebuffer compression for builtin LVDS displays.
Eric Anholt
Regis Prevot
Jesse Barnes
Kyle McMartin
Zhenyu Wang
Hong Liu
Dmitry Babrovich
Jesse Barnes
Keith Packard
Michel Dänzer
Dave Airlie