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via_drv.c revision 1.1.1.3 
      1 /*	$NetBSD: via_drv.c,v 1.1.1.3 2018/08/27 01:34:59 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
      5  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a
      8  * copy of this software and associated documentation files (the "Software"),
      9  * to deal in the Software without restriction, including without limitation
     10  * the rights to use, copy, modify, merge, publish, distribute, sub license,
     11  * and/or sell copies of the Software, and to permit persons to whom the
     12  * Software is furnished to do so, subject to the following conditions:
     13  *
     14  * The above copyright notice and this permission notice (including the
     15  * next paragraph) shall be included in all copies or substantial portions
     16  * of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     21  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     24  * DEALINGS IN THE SOFTWARE.
     25  */
     26 
     27 #include <sys/cdefs.h>
     28 __KERNEL_RCSID(0, "$NetBSD: via_drv.c,v 1.1.1.3 2018/08/27 01:34:59 riastradh Exp $");
     29 
     30 #include <linux/module.h>
     31 
     32 #include <drm/drmP.h>
     33 #include <drm/via_drm.h>
     34 #include "via_drv.h"
     35 
     36 #include <drm/drm_pciids.h>
     37 
     38 static int via_driver_open(struct drm_device *dev, struct drm_file *file)
     39 {
     40 	struct via_file_private *file_priv;
     41 
     42 	DRM_DEBUG_DRIVER("\n");
     43 	file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
     44 	if (!file_priv)
     45 		return -ENOMEM;
     46 
     47 	file->driver_priv = file_priv;
     48 
     49 	INIT_LIST_HEAD(&file_priv->obj_list);
     50 
     51 	return 0;
     52 }
     53 
     54 static void via_driver_postclose(struct drm_device *dev, struct drm_file *file)
     55 {
     56 	struct via_file_private *file_priv = file->driver_priv;
     57 
     58 	kfree(file_priv);
     59 }
     60 
     61 static struct pci_device_id pciidlist[] = {
     62 	viadrv_PCI_IDS
     63 };
     64 
     65 static const struct file_operations via_driver_fops = {
     66 	.owner = THIS_MODULE,
     67 	.open = drm_open,
     68 	.release = drm_release,
     69 	.unlocked_ioctl = drm_ioctl,
     70 	.mmap = drm_legacy_mmap,
     71 	.poll = drm_poll,
     72 #ifdef CONFIG_COMPAT
     73 	.compat_ioctl = drm_compat_ioctl,
     74 #endif
     75 	.llseek = noop_llseek,
     76 };
     77 
     78 static struct drm_driver driver = {
     79 	.driver_features =
     80 	    DRIVER_USE_AGP | DRIVER_HAVE_IRQ |
     81 	    DRIVER_IRQ_SHARED,
     82 	.load = via_driver_load,
     83 	.unload = via_driver_unload,
     84 	.open = via_driver_open,
     85 	.preclose = via_reclaim_buffers_locked,
     86 	.postclose = via_driver_postclose,
     87 	.set_busid = drm_pci_set_busid,
     88 	.context_dtor = via_final_context,
     89 	.get_vblank_counter = via_get_vblank_counter,
     90 	.enable_vblank = via_enable_vblank,
     91 	.disable_vblank = via_disable_vblank,
     92 	.irq_preinstall = via_driver_irq_preinstall,
     93 	.irq_postinstall = via_driver_irq_postinstall,
     94 	.irq_uninstall = via_driver_irq_uninstall,
     95 	.irq_handler = via_driver_irq_handler,
     96 	.dma_quiescent = via_driver_dma_quiescent,
     97 	.lastclose = via_lastclose,
     98 	.ioctls = via_ioctls,
     99 	.fops = &via_driver_fops,
    100 	.name = DRIVER_NAME,
    101 	.desc = DRIVER_DESC,
    102 	.date = DRIVER_DATE,
    103 	.major = DRIVER_MAJOR,
    104 	.minor = DRIVER_MINOR,
    105 	.patchlevel = DRIVER_PATCHLEVEL,
    106 };
    107 
    108 static struct pci_driver via_pci_driver = {
    109 	.name = DRIVER_NAME,
    110 	.id_table = pciidlist,
    111 };
    112 
    113 static int __init via_init(void)
    114 {
    115 	driver.num_ioctls = via_max_ioctl;
    116 	via_init_command_verifier();
    117 	return drm_pci_init(&driver, &via_pci_driver);
    118 }
    119 
    120 static void __exit via_exit(void)
    121 {
    122 	drm_pci_exit(&driver, &via_pci_driver);
    123 }
    124 
    125 module_init(via_init);
    126 module_exit(via_exit);
    127 
    128 MODULE_AUTHOR(DRIVER_AUTHOR);
    129 MODULE_DESCRIPTION(DRIVER_DESC);
    130 MODULE_LICENSE("GPL and additional rights");
    131