kernel/drivers/gpu/drm/via/via_drv.c

   1 /*
   2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #include <linux/module.h>
  26
  27 #include <drm/drmP.h>
  28 #include <drm/via_drm.h>
  29 #include "via_drv.h"
  30
  31 #include <drm/drm_pciids.h>
  32
  33 static int via_driver_open(struct drm_device *dev, struct drm_file *file)
  34 {
  35         struct via_file_private *file_priv;
  36
  37         DRM_DEBUG_DRIVER("\n");
  38         file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
  39         if (!file_priv)
  40                 return -ENOMEM;
  41
  42         file->driver_priv = file_priv;
  43
  44         INIT_LIST_HEAD(&file_priv->obj_list);
  45
  46         return 0;
  47 }
  48
  49 static void via_driver_postclose(struct drm_device *dev, struct drm_file *file)
  50 {
  51         struct via_file_private *file_priv = file->driver_priv;
  52
  53         kfree(file_priv);
  54 }
  55
  56 static struct pci_device_id pciidlist[] = {
  57         viadrv_PCI_IDS
  58 };
  59
  60 static const struct file_operations via_driver_fops = {
  61         .owner = THIS_MODULE,
  62         .open = drm_open,
  63         .release = drm_release,
  64         .unlocked_ioctl = drm_ioctl,
  65         .mmap = drm_legacy_mmap,
  66         .poll = drm_poll,
  67 #ifdef CONFIG_COMPAT
  68         .compat_ioctl = drm_compat_ioctl,
  69 #endif
  70         .llseek = noop_llseek,
  71 };
  72
  73 static struct drm_driver driver = {
  74         .driver_features =
  75             DRIVER_USE_AGP | DRIVER_HAVE_IRQ |
  76             DRIVER_IRQ_SHARED,
  77         .load = via_driver_load,
  78         .unload = via_driver_unload,
  79         .open = via_driver_open,
  80         .preclose = via_reclaim_buffers_locked,
  81         .postclose = via_driver_postclose,
  82         .set_busid = drm_pci_set_busid,
  83         .context_dtor = via_final_context,
  84         .get_vblank_counter = via_get_vblank_counter,
  85         .enable_vblank = via_enable_vblank,
  86         .disable_vblank = via_disable_vblank,
  87         .irq_preinstall = via_driver_irq_preinstall,
  88         .irq_postinstall = via_driver_irq_postinstall,
  89         .irq_uninstall = via_driver_irq_uninstall,
  90         .irq_handler = via_driver_irq_handler,
  91         .dma_quiescent = via_driver_dma_quiescent,
  92         .lastclose = via_lastclose,
  93         .ioctls = via_ioctls,
  94         .fops = &via_driver_fops,
  95         .name = DRIVER_NAME,
  96         .desc = DRIVER_DESC,
  97         .date = DRIVER_DATE,
  98         .major = DRIVER_MAJOR,
  99         .minor = DRIVER_MINOR,
 100         .patchlevel = DRIVER_PATCHLEVEL,
 101 };
 102
 103 static struct pci_driver via_pci_driver = {
 104         .name = DRIVER_NAME,
 105         .id_table = pciidlist,
 106 };
 107
 108 static int __init via_init(void)
 109 {
 110         driver.num_ioctls = via_max_ioctl;
 111         via_init_command_verifier();
 112         return drm_pci_init(&driver, &via_pci_driver);
 113 }
 114
 115 static void __exit via_exit(void)
 116 {
 117         drm_pci_exit(&driver, &via_pci_driver);
 118 }
 119
 120 module_init(via_init);
 121 module_exit(via_exit);
 122
 123 MODULE_AUTHOR(DRIVER_AUTHOR);
 124 MODULE_DESCRIPTION(DRIVER_DESC);
 125 MODULE_LICENSE("GPL and additional rights");