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

r128_drv.c (3560B)

      1/* r128_drv.c -- ATI Rage 128 driver -*- linux-c -*-
      2 * Created: Mon Dec 13 09:47:27 1999 by faith@precisioninsight.com
      3 *
      4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
      5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
      6 * All Rights Reserved.
      7 *
      8 * Permission is hereby granted, free of charge, to any person obtaining a
      9 * copy of this software and associated documentation files (the "Software"),
     10 * to deal in the Software without restriction, including without limitation
     11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     12 * and/or sell copies of the Software, and to permit persons to whom the
     13 * Software is furnished to do so, subject to the following conditions:
     14 *
     15 * The above copyright notice and this permission notice (including the next
     16 * paragraph) shall be included in all copies or substantial portions of the
     17 * Software.
     18 *
     19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     22 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     25 * OTHER DEALINGS IN THE SOFTWARE.
     26 *
     27 * Authors:
     28 *    Rickard E. (Rik) Faith <faith@valinux.com>
     29 *    Gareth Hughes <gareth@valinux.com>
     30 */
     31
     32#include <linux/module.h>
     33#include <linux/pci.h>
     34
     35#include <drm/drm_drv.h>
     36#include <drm/drm_file.h>
     37#include <drm/drm_pciids.h>
     38#include <drm/drm_vblank.h>
     39#include <drm/r128_drm.h>
     40
     41#include "r128_drv.h"
     42
     43static struct pci_device_id pciidlist[] = {
     44	r128_PCI_IDS
     45};
     46
     47static const struct file_operations r128_driver_fops = {
     48	.owner = THIS_MODULE,
     49	.open = drm_open,
     50	.release = drm_release,
     51	.unlocked_ioctl = drm_ioctl,
     52	.mmap = drm_legacy_mmap,
     53	.poll = drm_poll,
     54#ifdef CONFIG_COMPAT
     55	.compat_ioctl = r128_compat_ioctl,
     56#endif
     57	.llseek = noop_llseek,
     58};
     59
     60static struct drm_driver driver = {
     61	.driver_features =
     62	    DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_SG | DRIVER_LEGACY |
     63	    DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ,
     64	.dev_priv_size = sizeof(drm_r128_buf_priv_t),
     65	.load = r128_driver_load,
     66	.preclose = r128_driver_preclose,
     67	.lastclose = r128_driver_lastclose,
     68	.get_vblank_counter = r128_get_vblank_counter,
     69	.enable_vblank = r128_enable_vblank,
     70	.disable_vblank = r128_disable_vblank,
     71	.irq_preinstall = r128_driver_irq_preinstall,
     72	.irq_postinstall = r128_driver_irq_postinstall,
     73	.irq_uninstall = r128_driver_irq_uninstall,
     74	.irq_handler = r128_driver_irq_handler,
     75	.ioctls = r128_ioctls,
     76	.dma_ioctl = r128_cce_buffers,
     77	.fops = &r128_driver_fops,
     78	.name = DRIVER_NAME,
     79	.desc = DRIVER_DESC,
     80	.date = DRIVER_DATE,
     81	.major = DRIVER_MAJOR,
     82	.minor = DRIVER_MINOR,
     83	.patchlevel = DRIVER_PATCHLEVEL,
     84};
     85
     86int r128_driver_load(struct drm_device *dev, unsigned long flags)
     87{
     88	struct pci_dev *pdev = to_pci_dev(dev->dev);
     89
     90	pci_set_master(pdev);
     91	return drm_vblank_init(dev, 1);
     92}
     93
     94static struct pci_driver r128_pci_driver = {
     95	.name = DRIVER_NAME,
     96	.id_table = pciidlist,
     97};
     98
     99static int __init r128_init(void)
    100{
    101	driver.num_ioctls = r128_max_ioctl;
    102
    103	return drm_legacy_pci_init(&driver, &r128_pci_driver);
    104}
    105
    106static void __exit r128_exit(void)
    107{
    108	drm_legacy_pci_exit(&driver, &r128_pci_driver);
    109}
    110
    111module_init(r128_init);
    112module_exit(r128_exit);
    113
    114MODULE_AUTHOR(DRIVER_AUTHOR);
    115MODULE_DESCRIPTION(DRIVER_DESC);
    116MODULE_LICENSE("GPL and additional rights");