amdgpu_kms.c

/*
 * Copyright 2008 Advanced Micro Devices, Inc.
 * Copyright 2008 Red Hat Inc.
 * Copyright 2009 Jerome Glisse.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Dave Airlie
 *          Alex Deucher
 *          Jerome Glisse
 */
#include <drm/drmP.h>
#include "amdgpu.h"
#include <drm/amdgpu_drm.h>
#include "amdgpu_sched.h"
#include "amdgpu_uvd.h"
#include "amdgpu_vce.h"

#include <linux/vga_switcheroo.h>
#include <linux/slab.h>
#include <linux/pm_runtime.h>
#include "amdgpu_amdkfd.h"

/**
 * amdgpu_driver_unload_kms - Main unload function for KMS.
 *
 * @dev: drm dev pointer
 *
 * This is the main unload function for KMS (all asics).
 * Returns 0 on success.
 */
void amdgpu_driver_unload_kms(struct drm_device *dev)
{
	struct amdgpu_device *adev = dev->dev_private;

	if (adev == NULL)
		return;

	if (adev->rmmio == NULL)
		goto done_free;

	if (amdgpu_sriov_vf(adev))
		amdgpu_virt_request_full_gpu(adev, false);

	if (amdgpu_device_is_px(dev)) {
		pm_runtime_get_sync(dev->dev);
		pm_runtime_forbid(dev->dev);
	}

	amdgpu_acpi_fini(adev);

	amdgpu_device_fini(adev);

done_free: