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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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5af9e672b8
i915_gem_request_alloc() uses error pointers. It never returns NULLs. Fixes:0daf0113cf("drm/i915: Mock infrastructure for request emission") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170413195217.GA26108@mwanda Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> (cherry picked from commitbe02f75564) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/*
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* Copyright © 2016 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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*/
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#include "mock_engine.h"
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#include "mock_request.h"
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struct drm_i915_gem_request *
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mock_request(struct intel_engine_cs *engine,
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struct i915_gem_context *context,
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unsigned long delay)
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{
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struct drm_i915_gem_request *request;
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struct mock_request *mock;
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/* NB the i915->requests slab cache is enlarged to fit mock_request */
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request = i915_gem_request_alloc(engine, context);
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if (IS_ERR(request))
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return NULL;
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mock = container_of(request, typeof(*mock), base);
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mock->delay = delay;
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return &mock->base;
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}
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bool mock_cancel_request(struct drm_i915_gem_request *request)
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{
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struct mock_request *mock = container_of(request, typeof(*mock), base);
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struct mock_engine *engine =
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container_of(request->engine, typeof(*engine), base);
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bool was_queued;
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spin_lock_irq(&engine->hw_lock);
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was_queued = !list_empty(&mock->link);
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list_del_init(&mock->link);
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spin_unlock_irq(&engine->hw_lock);
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if (was_queued)
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i915_gem_request_unsubmit(request);
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return was_queued;
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}
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