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Alignment trick doesn't work properly for ppgtt gens - kernel is able
to keep previous offset and doesn't call unbind/bind. With softpin
on ppgtt we're able to enforce rebind and benchmark should behave
correctly on such gens.
To avoid inaccurate results kernel CONFIG_PROVE_LOCKING should be set
to N, otherwise kernel can call unbind/bind for same offset more than
one (backoff is not visible from userspace).
v2: rename to gem_allows_obj_alignment()
Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Cc: Petri Latvala <petri.latvala@intel.com>
Cc: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
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Add timeout argument and change elapsed time to inner loop to
be more precise in timeout processing.
Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Cc: Ashutosh Dixit <ashutosh.dixit@intel.com>
Cc: Petri Latvala <petri.latvala@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
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Add a wrapper for gem_create_ext ioctl (a version of gem_create that
accepts extensions). In preparation for the driver change implementing it,
a local definition of its id and necessary structs have been added,
which are to be erased as soon as those definitions
appear in the i915_drm.h file.
The new ioctl wrapper is added to a separate file.
For consistency the wrapper of the old ioctl, gem_create
is moved from ioctl_wrappers to gem_create.
Signed-off-by: Andrzej Turko <andrzej.turko@linux.intel.com>
Cc: Zbigniew Kempczynski <zbigniew.kempczynski@intel.com>
Cc: Dominik Grzegorzek <dominik.grzegorzek@intel.com>
Cc: Petri Latvala <petri.latvala@intel.com>
Cc: Chris P Wilson <chris.p.wilson@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Acked-by: Petri Latvala <petri.latvala@intel.com>
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In preparation for a variation on the exisiting GEM_CREATE API, split
the ioctl from out of the large ioctl_wrappers.c
Signed-off-by: Andrzej Turko <andrzej.turko@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Local macros were declared in several files as a prelude to upstream
implementations. Now that we ship include/drm-uapi, we can remove LOCAL
as we upstream.
Cc: Dixit, Ashutosh <ashutosh.dixit@intel.com>
Cc: Tahvanainen Jari <jari.tahvanainen@intel.com>
Signed-off-by: ranjeet kumar <ranjeet1.kumar@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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It doesn't look like there should be a dependency there.
v2: s/intel_batchbuffer/intel_reg/
v3: One more s/intel_batchbuffer/intel_reg/ in benchmarks
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Katarzyna Dec <katarzyna.dec@intel.com>
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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
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Oops, because -nightly doesn't handle 64bit alignments correctly, this
was not working quite as expected.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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If we specify an unobtainable alignment (e.g, 63bits) the kernel will
eviction the object from the GTT and fail to rebind it. We can use this,
to measure how long it takes to move objects around in the GTT by
running execbuf followed by the unbind. For small objects, this will be
dominated by the nop execution time, but for larger objects this will be
ratelimited by how fast we can rewrite the PTE.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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