mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
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/*
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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 <linux/pm_runtime.h>
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#include "mock_gem_device.h"
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#include "mock_gem_object.h"
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static void mock_device_release(struct drm_device *dev)
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{
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struct drm_i915_private *i915 = to_i915(dev);
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i915_gem_drain_freed_objects(i915);
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kmem_cache_destroy(i915->objects);
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drm_dev_fini(&i915->drm);
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put_device(&i915->drm.pdev->dev);
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}
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static struct drm_driver mock_driver = {
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.name = "mock",
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.driver_features = DRIVER_GEM,
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.release = mock_device_release,
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.gem_close_object = i915_gem_close_object,
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.gem_free_object_unlocked = i915_gem_free_object,
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};
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static void release_dev(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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kfree(pdev);
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}
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struct drm_i915_private *mock_gem_device(void)
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{
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struct drm_i915_private *i915;
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struct pci_dev *pdev;
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int err;
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pdev = kzalloc(sizeof(*pdev) + sizeof(*i915), GFP_KERNEL);
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if (!pdev)
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goto err;
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device_initialize(&pdev->dev);
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pdev->dev.release = release_dev;
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dev_set_name(&pdev->dev, "mock");
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dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
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pm_runtime_dont_use_autosuspend(&pdev->dev);
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pm_runtime_get_sync(&pdev->dev);
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i915 = (struct drm_i915_private *)(pdev + 1);
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pci_set_drvdata(pdev, i915);
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err = drm_dev_init(&i915->drm, &mock_driver, &pdev->dev);
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if (err) {
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pr_err("Failed to initialise mock GEM device: err=%d\n", err);
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goto put_device;
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}
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i915->drm.pdev = pdev;
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i915->drm.dev_private = i915;
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mkwrite_device_info(i915)->gen = -1;
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spin_lock_init(&i915->mm.object_stat_lock);
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INIT_WORK(&i915->mm.free_work, __i915_gem_free_work);
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init_llist_head(&i915->mm.free_list);
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i915->objects = KMEM_CACHE(mock_object, SLAB_HWCACHE_ALIGN);
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if (!i915->objects)
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goto put_device;
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return i915;
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put_device:
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put_device(&pdev->dev);
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err:
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return NULL;
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}
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