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When a software fallback has completed, usermode must notify the kernel so
that any scanout buffers can be synchronized. This ioctl should be called
whenever a fallback completes to flush CPU and chipset caches.
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This is the create (may want location flags), pread/pwrite/mmap
(performance tuning hints), and set_domain (will 32 bits be enough for
everyone?) ioctls. Left in the generic set are just flink/open/close.
The 2D driver must be updated for this change, and API but not ABI is broken
for 3D. The driver version is bumped to mark this.
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This requires that the X Server use the execbuf interface for buffer
submission, as it no longer has direct access to the ring. This is
therefore a flag day for the gem interface.
This also adds enter/leavevt ioctls for use by the X Server. These would
get stubbed out in a modesetting implementation, but are required while
in an environment where the device's state is only managed by the DRM while
X has the VT.
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Instead of throttling and execbuffer time, have the application ask to
throttle explicitly. This allows the throttle to happen less often, and
without holding the DRM lock.
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Conflicts:
linux-core/Makefile.kernel
shared-core/i915_drv.h
shared-core/nouveau_state.c
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This new ioctl returns whether re-using the buffer would force a wait.
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Rename 'validate_entry' to 'exec_object', then clean up some field names in
structures (renaming buffer_offset to just offset, for example).
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Domain information is about buffer relationships, not buffer contents. That
means a relocation contains the domain information as it knows how the
source buffer references the target buffer.
This also adds the set_domain ioctl so that user space can move buffers to
the cpu domain.
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One of our MI_FLUSH bits is reserved on 965, being always implied, and there's
a vertex cache that was forgotten.
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When pinning buffers, or using execbuffer, allow the application to specify
the necessary aperture allocation alignment constraints.
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mixed 32/64 bit systems need 'special' help for ioctl where the user-space
and kernel-space datatypes differ. Fixing the datatypes to be the same size,
and align the same way for both 32 and 64-bit ppc and x86 environments will
elimiante the need to have magic 32/64-bit ioctl translation code.
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This matches the changes in mesa to use the system drm includes
for the definitions of the drm ioctl structs.
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Switch relocs to using copy from user and remove index and pass buffer
handles in instead.
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This will be used later for lockless operation.
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Kernel "cleanfile" script run.
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This adds the initial i915 superioctl interface. The interface should be
sufficent even if the implementation may needs fixes/optimisations internally
in the drm wrt caching etc.
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I should not have renamed this field.
I should not have renamed this field.
I should not have renamed this field.
On the plus side, it was at least binary compatible.
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We can figure out which pipe a given plane is mapped to by looking at the
display control registers instead of tracking it in a new SAREA private field.
If this becomes a performance problem, we could move to an ioctl based solution
by adding a new parameter for the DDX to set (defaulting to the old behavior if
the param was never set of course).
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This mod makes the SAREA track plane to pipe mappings and corrects the name of
the plane info variables (they were mislabeled as pipe info since until now all
code assumed a direct mapping between planes and pipes).
It also updates the flip ioctl argument to take a set of planes rather than
pipes, since planes are flipped while pipes generate vblank events.
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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.
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Pages are tracked independently on each pipe.
Bump the minor version for 3D clients to know page flipping is usable, and
bump driver date.
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This adds a new ioctl for passing counter information from the chip back to
applications, these counters include the data needed to perform OC.
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(cherry picked from c2bdb76814755c9ac6e66a8815f23af0fe4f3a91 commit)
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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 d5a0f107511e128658e2d5e15bd7e6215c507f29 commit)
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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 257771fa290b62d4d2ad896843cf3a207978d0bb commit)
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In the intel case, we can associate a flush with a sequence.
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Disable the i915 IRQ turnoff for now since it seems to be causing problems.
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smack my whitespace up.
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This is a patch prepared by Guangdeng Liao based off of Tungsten Graphics's
final code drop.
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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.
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(Tungsten Graphics)
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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.
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