forked from Minki/linux
75f6dfe3e6
Several DRM drivers print the same initialization message right after drm_dev_register, so move that to common code. The exception is i915, which uses its own register handle, so let it keep its own message. Notice that this was tested only with Exynos, but looks simple enough for the other drivers. Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161228143216.26821-2-krisman@collabora.co.uk
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/*
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* Copyright (C) 2015 Red Hat, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <linux/pci.h>
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#include <drm/drm_fb_helper.h>
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#include "virtgpu_drv.h"
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static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
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{
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struct apertures_struct *ap;
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bool primary;
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ap = alloc_apertures(1);
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if (!ap)
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return;
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ap->ranges[0].base = pci_resource_start(pci_dev, 0);
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ap->ranges[0].size = pci_resource_len(pci_dev, 0);
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primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
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& IORESOURCE_ROM_SHADOW;
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drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
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kfree(ap);
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}
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int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
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{
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struct drm_device *dev;
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int ret;
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dev = drm_dev_alloc(driver, &vdev->dev);
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if (IS_ERR(dev))
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return PTR_ERR(dev);
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dev->virtdev = vdev;
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vdev->priv = dev;
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if (strcmp(vdev->dev.parent->bus->name, "pci") == 0) {
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struct pci_dev *pdev = to_pci_dev(vdev->dev.parent);
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const char *pname = dev_name(&pdev->dev);
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bool vga = (pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA;
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char unique[20];
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DRM_INFO("pci: %s detected at %s\n",
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vga ? "virtio-vga" : "virtio-gpu-pci",
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pname);
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dev->pdev = pdev;
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if (vga)
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virtio_pci_kick_out_firmware_fb(pdev);
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snprintf(unique, sizeof(unique), "pci:%s", pname);
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ret = drm_dev_set_unique(dev, unique);
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if (ret)
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goto err_free;
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}
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ret = drm_dev_register(dev, 0);
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if (ret)
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goto err_free;
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return 0;
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err_free:
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drm_dev_unref(dev);
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return ret;
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}
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