forked from Minki/linux
bd84b1e995
Depending upon one module option to be sanitized (through USES_PPGTT) for the other is a bit too fragile for my taste. At least WARN about this. Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Damien Lespiau <damien.lespiau@intel.com> Cc: Oscar Mateo <oscar.mateo@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
56 lines
2.0 KiB
C
56 lines
2.0 KiB
C
/*
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* Copyright © 2014 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Ben Widawsky <ben@bwidawsk.net>
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* Michel Thierry <michel.thierry@intel.com>
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* Thomas Daniel <thomas.daniel@intel.com>
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* Oscar Mateo <oscar.mateo@intel.com>
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*
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*/
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/*
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* GEN8 brings an expansion of the HW contexts: "Logical Ring Contexts".
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* These expanded contexts enable a number of new abilities, especially
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* "Execlists" (also implemented in this file).
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*
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* Execlists are the new method by which, on gen8+ hardware, workloads are
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* submitted for execution (as opposed to the legacy, ringbuffer-based, method).
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*/
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#include <drm/drmP.h>
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#include <drm/i915_drm.h>
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#include "i915_drv.h"
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int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists)
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{
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WARN_ON(i915.enable_ppgtt == -1);
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if (enable_execlists == 0)
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return 0;
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if (HAS_LOGICAL_RING_CONTEXTS(dev) && USES_PPGTT(dev))
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return 1;
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return 0;
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}
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