cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

nouveau_platform.c (2769B)

      1/*
      2 * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     20 * DEALINGS IN THE SOFTWARE.
     21 */
     22#include "nouveau_platform.h"
     23
     24static int nouveau_platform_probe(struct platform_device *pdev)
     25{
     26	const struct nvkm_device_tegra_func *func;
     27	struct nvkm_device *device = NULL;
     28	struct drm_device *drm;
     29	int ret;
     30
     31	func = of_device_get_match_data(&pdev->dev);
     32
     33	drm = nouveau_platform_device_create(func, pdev, &device);
     34	if (IS_ERR(drm))
     35		return PTR_ERR(drm);
     36
     37	ret = drm_dev_register(drm, 0);
     38	if (ret < 0) {
     39		drm_dev_put(drm);
     40		return ret;
     41	}
     42
     43	return 0;
     44}
     45
     46static int nouveau_platform_remove(struct platform_device *pdev)
     47{
     48	struct drm_device *dev = platform_get_drvdata(pdev);
     49	nouveau_drm_device_remove(dev);
     50	return 0;
     51}
     52
     53#if IS_ENABLED(CONFIG_OF)
     54static const struct nvkm_device_tegra_func gk20a_platform_data = {
     55	.iommu_bit = 34,
     56	.require_vdd = true,
     57};
     58
     59static const struct nvkm_device_tegra_func gm20b_platform_data = {
     60	.iommu_bit = 34,
     61	.require_vdd = true,
     62	.require_ref_clk = true,
     63};
     64
     65static const struct nvkm_device_tegra_func gp10b_platform_data = {
     66	.iommu_bit = 36,
     67	/* power provided by generic PM domains */
     68	.require_vdd = false,
     69};
     70
     71static const struct of_device_id nouveau_platform_match[] = {
     72	{
     73		.compatible = "nvidia,gk20a",
     74		.data = &gk20a_platform_data,
     75	},
     76	{
     77		.compatible = "nvidia,gm20b",
     78		.data = &gm20b_platform_data,
     79	},
     80	{
     81		.compatible = "nvidia,gp10b",
     82		.data = &gp10b_platform_data,
     83	},
     84	{ }
     85};
     86
     87MODULE_DEVICE_TABLE(of, nouveau_platform_match);
     88#endif
     89
     90struct platform_driver nouveau_platform_driver = {
     91	.driver = {
     92		.name = "nouveau",
     93		.of_match_table = of_match_ptr(nouveau_platform_match),
     94	},
     95	.probe = nouveau_platform_probe,
     96	.remove = nouveau_platform_remove,
     97};