forked from Minki/linux
drm/virtio: Drop deprecated load/unload initialization
Move the code around so the driver is probed the bus .probe and removed from the bus .remove callbacks. This commit is just a cleanup and shouldn't affect functionality. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Link: http://patchwork.freedesktop.org/patch/msgid/20190108145930.15080-1-ezequiel@collabora.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Ezequiel Garcia
Gerd Hoffmann
parent
00eb5b0da8
commit
d516e75c71
@ -3,7 +3,7 @@
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# Makefile for the drm device driver. This driver provides support for the
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# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
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virtio-gpu-y := virtgpu_drv.o virtgpu_kms.o virtgpu_drm_bus.o virtgpu_gem.o \
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virtio-gpu-y := virtgpu_drv.o virtgpu_kms.o virtgpu_gem.o \
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virtgpu_fb.o virtgpu_display.o virtgpu_vq.o virtgpu_ttm.o \
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virtgpu_fence.o virtgpu_object.o virtgpu_debugfs.o virtgpu_plane.o \
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virtgpu_ioctl.o virtgpu_prime.o
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@ -358,7 +358,7 @@ static const struct drm_mode_config_funcs virtio_gpu_mode_funcs = {
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.atomic_commit = drm_atomic_helper_commit,
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};
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int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
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void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
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{
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int i;
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@ -377,7 +377,6 @@ int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
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vgdev_output_init(vgdev, i);
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drm_mode_config_reset(vgdev->ddev);
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return 0;
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}
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void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev)
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@ -1,103 +0,0 @@
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/*
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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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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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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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drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
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0,
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"virtiodrmfb");
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/*
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* Normally the drm_dev_set_unique() call is done by core DRM.
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* The following comment covers, why virtio cannot rely on it.
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*
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* Unlike the other virtual GPU drivers, virtio abstracts the
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* underlying bus type by using struct virtio_device.
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*
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* Hence the dev_is_pci() check, used in core DRM, will fail
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* and the unique returned will be the virtio_device "virtio0",
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* while a "pci:..." one is required.
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*
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* A few other ideas were considered:
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* - Extend the dev_is_pci() check [in drm_set_busid] to
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* consider virtio.
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* Seems like a bigger hack than what we have already.
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*
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* - Point drm_device::dev to the parent of the virtio_device
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* Semantic changes:
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* * Using the wrong device for i2c, framebuffer_alloc and
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* prime import.
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* Visual changes:
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* * Helpers such as DRM_DEV_ERROR, dev_info, drm_printer,
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* will print the wrong information.
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*
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* We could address the latter issues, by introducing
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* drm_device::bus_dev, ... which would be used solely for this.
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*
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* So for the moment keep things as-is, with a bulky comment
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* for the next person who feels like removing this
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* drm_dev_set_unique() quirk.
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*/
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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_put(dev);
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return ret;
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}
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@ -40,8 +40,60 @@ static int virtio_gpu_modeset = -1;
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MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
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module_param_named(modeset, virtio_gpu_modeset, int, 0400);
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static int virtio_gpu_pci_quirk(struct drm_device *dev, struct virtio_device *vdev)
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{
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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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drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
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0,
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"virtiodrmfb");
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/*
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* Normally the drm_dev_set_unique() call is done by core DRM.
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* The following comment covers, why virtio cannot rely on it.
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*
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* Unlike the other virtual GPU drivers, virtio abstracts the
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* underlying bus type by using struct virtio_device.
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*
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* Hence the dev_is_pci() check, used in core DRM, will fail
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* and the unique returned will be the virtio_device "virtio0",
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* while a "pci:..." one is required.
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*
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* A few other ideas were considered:
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* - Extend the dev_is_pci() check [in drm_set_busid] to
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* consider virtio.
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* Seems like a bigger hack than what we have already.
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*
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* - Point drm_device::dev to the parent of the virtio_device
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* Semantic changes:
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* * Using the wrong device for i2c, framebuffer_alloc and
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* prime import.
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* Visual changes:
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* * Helpers such as DRM_DEV_ERROR, dev_info, drm_printer,
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* will print the wrong information.
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*
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* We could address the latter issues, by introducing
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* drm_device::bus_dev, ... which would be used solely for this.
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*
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* So for the moment keep things as-is, with a bulky comment
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* for the next person who feels like removing this
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* drm_dev_set_unique() quirk.
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*/
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snprintf(unique, sizeof(unique), "pci:%s", pname);
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return drm_dev_set_unique(dev, unique);
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}
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static int virtio_gpu_probe(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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if (vgacon_text_force() && virtio_gpu_modeset == -1)
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@ -50,18 +102,39 @@ static int virtio_gpu_probe(struct virtio_device *vdev)
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if (virtio_gpu_modeset == 0)
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return -EINVAL;
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ret = drm_virtio_init(&driver, vdev);
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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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vdev->priv = dev;
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if (!strcmp(vdev->dev.parent->bus->name, "pci")) {
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ret = virtio_gpu_pci_quirk(dev, vdev);
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if (ret)
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goto err_free;
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}
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ret = virtio_gpu_init(dev);
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if (ret)
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return ret;
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goto err_free;
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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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drm_fbdev_generic_setup(vdev->priv, 32);
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return 0;
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err_free:
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drm_dev_put(dev);
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return ret;
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}
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static void virtio_gpu_remove(struct virtio_device *vdev)
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{
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struct drm_device *dev = vdev->priv;
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drm_dev_unregister(dev);
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virtio_gpu_deinit(dev);
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drm_put_dev(dev);
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}
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@ -123,8 +196,6 @@ static const struct file_operations virtio_gpu_driver_fops = {
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static struct drm_driver driver = {
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.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER | DRIVER_ATOMIC,
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.load = virtio_gpu_driver_load,
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.unload = virtio_gpu_driver_unload,
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.open = virtio_gpu_driver_open,
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.postclose = virtio_gpu_driver_postclose,
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@ -50,9 +50,6 @@
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#define DRIVER_MINOR 1
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#define DRIVER_PATCHLEVEL 0
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/* virtgpu_drm_bus.c */
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int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev);
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struct virtio_gpu_object {
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struct drm_gem_object gem_base;
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uint32_t hw_res_handle;
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@ -209,8 +206,8 @@ struct virtio_gpu_fpriv {
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extern struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS];
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/* virtio_kms.c */
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int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags);
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void virtio_gpu_driver_unload(struct drm_device *dev);
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int virtio_gpu_init(struct drm_device *dev);
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void virtio_gpu_deinit(struct drm_device *dev);
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int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file);
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void virtio_gpu_driver_postclose(struct drm_device *dev, struct drm_file *file);
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@ -320,7 +317,7 @@ int virtio_gpu_framebuffer_init(struct drm_device *dev,
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struct virtio_gpu_framebuffer *vgfb,
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const struct drm_mode_fb_cmd2 *mode_cmd,
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struct drm_gem_object *obj);
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int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
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void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
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void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev);
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/* virtio_gpu_plane.c */
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@ -106,7 +106,7 @@ static void virtio_gpu_get_capsets(struct virtio_gpu_device *vgdev,
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vgdev->num_capsets = num_capsets;
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}
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int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
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int virtio_gpu_init(struct drm_device *dev)
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{
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static vq_callback_t *callbacks[] = {
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virtio_gpu_ctrl_ack, virtio_gpu_cursor_ack
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@ -193,9 +193,7 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
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num_capsets, &num_capsets);
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DRM_INFO("number of cap sets: %d\n", num_capsets);
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ret = virtio_gpu_modeset_init(vgdev);
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if (ret)
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goto err_modeset;
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virtio_gpu_modeset_init(vgdev);
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virtio_device_ready(vgdev->vdev);
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vgdev->vqs_ready = true;
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@ -209,7 +207,6 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
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5 * HZ);
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return 0;
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err_modeset:
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err_scanouts:
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virtio_gpu_ttm_fini(vgdev);
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err_ttm:
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@ -231,7 +228,7 @@ static void virtio_gpu_cleanup_cap_cache(struct virtio_gpu_device *vgdev)
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}
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}
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void virtio_gpu_driver_unload(struct drm_device *dev)
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void virtio_gpu_deinit(struct drm_device *dev)
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{
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struct virtio_gpu_device *vgdev = dev->dev_private;
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