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via_drv.c revision 1.1.1.2 
      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_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 	.context_dtor = via_final_context,
     83 	.get_vblank_counter = via_get_vblank_counter,
     84 	.enable_vblank = via_enable_vblank,
     85 	.disable_vblank = via_disable_vblank,
     86 	.irq_preinstall = via_driver_irq_preinstall,
     87 	.irq_postinstall = via_driver_irq_postinstall,
     88 	.irq_uninstall = via_driver_irq_uninstall,
     89 	.irq_handler = via_driver_irq_handler,
     90 	.dma_quiescent = via_driver_dma_quiescent,
     91 	.lastclose = via_lastclose,
     92 	.ioctls = via_ioctls,
     93 	.fops = &via_driver_fops,
     94 	.name = DRIVER_NAME,
     95 	.desc = DRIVER_DESC,
     96 	.date = DRIVER_DATE,
     97 	.major = DRIVER_MAJOR,
     98 	.minor = DRIVER_MINOR,
     99 	.patchlevel = DRIVER_PATCHLEVEL,
    100 };
    101 
    102 static struct pci_driver via_pci_driver = {
    103 	.name = DRIVER_NAME,
    104 	.id_table = pciidlist,
    105 };
    106 
    107 static int __init via_init(void)
    108 {
    109 	driver.num_ioctls = via_max_ioctl;
    110 	via_init_command_verifier();
    111 	return drm_pci_init(&driver, &via_pci_driver);
    112 }
    113 
    114 static void __exit via_exit(void)
    115 {
    116 	drm_pci_exit(&driver, &via_pci_driver);
    117 }
    118 
    119 module_init(via_init);
    120 module_exit(via_exit);
    121 
    122 MODULE_AUTHOR(DRIVER_AUTHOR);
    123 MODULE_DESCRIPTION(DRIVER_DESC);
    124 MODULE_LICENSE("GPL and additional rights");
    125