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

savage_drv.c (2770B)

      1/* savage_drv.c -- Savage driver for Linux
      2 *
      3 * Copyright 2004  Felix Kuehling
      4 * All Rights Reserved.
      5 *
      6 * Permission is hereby granted, free of charge, to any person obtaining a
      7 * copy of this software and associated documentation files (the "Software"),
      8 * to deal in the Software without restriction, including without limitation
      9 * the rights to use, copy, modify, merge, publish, distribute, sub license,
     10 * and/or sell copies of the Software, and to permit persons to whom the
     11 * Software is furnished to do so, subject to the following conditions:
     12 *
     13 * The above copyright notice and this permission notice (including the
     14 * next paragraph) shall be included in all copies or substantial portions
     15 * of the Software.
     16 *
     17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     20 * NON-INFRINGEMENT. IN NO EVENT SHALL FELIX KUEHLING BE LIABLE FOR
     21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
     22 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     24 */
     25
     26#include <linux/module.h>
     27#include <linux/pci.h>
     28
     29#include <drm/drm_drv.h>
     30#include <drm/drm_file.h>
     31#include <drm/drm_pciids.h>
     32
     33#include "savage_drv.h"
     34
     35static struct pci_device_id pciidlist[] = {
     36	savage_PCI_IDS
     37};
     38
     39static const struct file_operations savage_driver_fops = {
     40	.owner = THIS_MODULE,
     41	.open = drm_open,
     42	.release = drm_release,
     43	.unlocked_ioctl = drm_ioctl,
     44	.mmap = drm_legacy_mmap,
     45	.poll = drm_poll,
     46	.compat_ioctl = drm_compat_ioctl,
     47	.llseek = noop_llseek,
     48};
     49
     50static struct drm_driver driver = {
     51	.driver_features =
     52	    DRIVER_USE_AGP | DRIVER_HAVE_DMA | DRIVER_PCI_DMA | DRIVER_LEGACY,
     53	.dev_priv_size = sizeof(drm_savage_buf_priv_t),
     54	.load = savage_driver_load,
     55	.firstopen = savage_driver_firstopen,
     56	.preclose = savage_reclaim_buffers,
     57	.lastclose = savage_driver_lastclose,
     58	.unload = savage_driver_unload,
     59	.ioctls = savage_ioctls,
     60	.dma_ioctl = savage_bci_buffers,
     61	.fops = &savage_driver_fops,
     62	.name = DRIVER_NAME,
     63	.desc = DRIVER_DESC,
     64	.date = DRIVER_DATE,
     65	.major = DRIVER_MAJOR,
     66	.minor = DRIVER_MINOR,
     67	.patchlevel = DRIVER_PATCHLEVEL,
     68};
     69
     70static struct pci_driver savage_pci_driver = {
     71	.name = DRIVER_NAME,
     72	.id_table = pciidlist,
     73};
     74
     75static int __init savage_init(void)
     76{
     77	driver.num_ioctls = savage_max_ioctl;
     78	return drm_legacy_pci_init(&driver, &savage_pci_driver);
     79}
     80
     81static void __exit savage_exit(void)
     82{
     83	drm_legacy_pci_exit(&driver, &savage_pci_driver);
     84}
     85
     86module_init(savage_init);
     87module_exit(savage_exit);
     88
     89MODULE_AUTHOR(DRIVER_AUTHOR);
     90MODULE_DESCRIPTION(DRIVER_DESC);
     91MODULE_LICENSE("GPL and additional rights");