1 /* sis.c -- sis driver -*- linux-c -*- 2 * 3 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 4 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 5 * 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, sublicense, 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 next 15 * paragraph) shall be included in all copies or substantial portions of the 16 * 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 NONINFRINGEMENT. IN NO EVENT SHALL 21 * PRECISION INSIGHT 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 28 #include <linux/module.h> 29 30 #include <drm/drmP.h> 31 #include <drm/sis_drm.h> 32 #include "sis_drv.h" 33 34 #include <drm/drm_pciids.h> 35 36 static struct pci_device_id pciidlist[] = { 37 sisdrv_PCI_IDS 38 }; 39 40 static int sis_driver_load(struct drm_device *dev, unsigned long chipset) 41 { 42 drm_sis_private_t *dev_priv; 43 44 pci_set_master(dev->pdev); 45 46 dev_priv = kzalloc(sizeof(drm_sis_private_t), GFP_KERNEL); 47 if (dev_priv == NULL) 48 return -ENOMEM; 49 50 idr_init(&dev_priv->object_idr); 51 dev->dev_private = (void *)dev_priv; 52 dev_priv->chipset = chipset; 53 54 return 0; 55 } 56 57 static int sis_driver_unload(struct drm_device *dev) 58 { 59 drm_sis_private_t *dev_priv = dev->dev_private; 60 61 idr_destroy(&dev_priv->object_idr); 62 63 kfree(dev_priv); 64 65 return 0; 66 } 67 68 static const struct file_operations sis_driver_fops = { 69 .owner = THIS_MODULE, 70 .open = drm_open, 71 .release = drm_release, 72 .unlocked_ioctl = drm_ioctl, 73 .mmap = drm_mmap, 74 .poll = drm_poll, 75 #ifdef CONFIG_COMPAT 76 .compat_ioctl = drm_compat_ioctl, 77 #endif 78 .llseek = noop_llseek, 79 }; 80 81 static int sis_driver_open(struct drm_device *dev, struct drm_file *file) 82 { 83 struct sis_file_private *file_priv; 84 85 DRM_DEBUG_DRIVER("\n"); 86 file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL); 87 if (!file_priv) 88 return -ENOMEM; 89 90 file->driver_priv = file_priv; 91 92 INIT_LIST_HEAD(&file_priv->obj_list); 93 94 return 0; 95 } 96 97 static void sis_driver_postclose(struct drm_device *dev, struct drm_file *file) 98 { 99 struct sis_file_private *file_priv = file->driver_priv; 100 101 kfree(file_priv); 102 } 103 104 static struct drm_driver driver = { 105 .driver_features = DRIVER_USE_AGP, 106 .load = sis_driver_load, 107 .unload = sis_driver_unload, 108 .open = sis_driver_open, 109 .preclose = sis_reclaim_buffers_locked, 110 .postclose = sis_driver_postclose, 111 .dma_quiescent = sis_idle, 112 .lastclose = sis_lastclose, 113 .ioctls = sis_ioctls, 114 .fops = &sis_driver_fops, 115 .name = DRIVER_NAME, 116 .desc = DRIVER_DESC, 117 .date = DRIVER_DATE, 118 .major = DRIVER_MAJOR, 119 .minor = DRIVER_MINOR, 120 .patchlevel = DRIVER_PATCHLEVEL, 121 }; 122 123 static struct pci_driver sis_pci_driver = { 124 .name = DRIVER_NAME, 125 .id_table = pciidlist, 126 }; 127 128 static int __init sis_init(void) 129 { 130 driver.num_ioctls = sis_max_ioctl; 131 return drm_pci_init(&driver, &sis_pci_driver); 132 } 133 134 static void __exit sis_exit(void) 135 { 136 drm_pci_exit(&driver, &sis_pci_driver); 137 } 138 139 module_init(sis_init); 140 module_exit(sis_exit); 141 142 MODULE_AUTHOR(DRIVER_AUTHOR); 143 MODULE_DESCRIPTION(DRIVER_DESC); 144 MODULE_LICENSE("GPL and additional rights"); 145