1 /**
2  * \file radeon_drv.c
3  * ATI Radeon driver
4  *
5  * \author Gareth Hughes <gareth@valinux.com>
6  */
7 
8 /*
9  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
10  * All Rights Reserved.
11  *
12  * Permission is hereby granted, free of charge, to any person obtaining a
13  * copy of this software and associated documentation files (the "Software"),
14  * to deal in the Software without restriction, including without limitation
15  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16  * and/or sell copies of the Software, and to permit persons to whom the
17  * Software is furnished to do so, subject to the following conditions:
18  *
19  * The above copyright notice and this permission notice (including the next
20  * paragraph) shall be included in all copies or substantial portions of the
21  * Software.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
24  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
25  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
26  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
27  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
28  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
29  * OTHER DEALINGS IN THE SOFTWARE.
30  */
31 
32 #include "drmP.h"
33 #include "drm.h"
34 #include "radeon_drm.h"
35 #include "radeon_drv.h"
36 
37 #include "drm_pciids.h"
38 
39 int radeon_no_wb;
40 
41 MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
42 module_param_named(no_wb, radeon_no_wb, int, 0444);
43 
44 static int dri_library_name(struct drm_device *dev, char *buf)
45 {
46 	drm_radeon_private_t *dev_priv = dev->dev_private;
47 	int family = dev_priv->flags & RADEON_FAMILY_MASK;
48 
49 	return snprintf(buf, PAGE_SIZE, "%s\n",
50 		        (family < CHIP_R200) ? "radeon" :
51 		        ((family < CHIP_R300) ? "r200" :
52 		        "r300"));
53 }
54 
55 static int radeon_suspend(struct drm_device *dev, pm_message_t state)
56 {
57 	drm_radeon_private_t *dev_priv = dev->dev_private;
58 
59 	/* Disable *all* interrupts */
60 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690)
61 		RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
62 	RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
63 	return 0;
64 }
65 
66 static int radeon_resume(struct drm_device *dev)
67 {
68 	drm_radeon_private_t *dev_priv = dev->dev_private;
69 
70 	/* Restore interrupt registers */
71 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690)
72 		RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
73 	RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
74 	return 0;
75 }
76 
77 static struct pci_device_id pciidlist[] = {
78 	radeon_PCI_IDS
79 };
80 
81 static struct drm_driver driver = {
82 	.driver_features =
83 	    DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
84 	    DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED,
85 	.dev_priv_size = sizeof(drm_radeon_buf_priv_t),
86 	.load = radeon_driver_load,
87 	.firstopen = radeon_driver_firstopen,
88 	.open = radeon_driver_open,
89 	.preclose = radeon_driver_preclose,
90 	.postclose = radeon_driver_postclose,
91 	.lastclose = radeon_driver_lastclose,
92 	.unload = radeon_driver_unload,
93 	.suspend = radeon_suspend,
94 	.resume = radeon_resume,
95 	.get_vblank_counter = radeon_get_vblank_counter,
96 	.enable_vblank = radeon_enable_vblank,
97 	.disable_vblank = radeon_disable_vblank,
98 	.dri_library_name = dri_library_name,
99 	.irq_preinstall = radeon_driver_irq_preinstall,
100 	.irq_postinstall = radeon_driver_irq_postinstall,
101 	.irq_uninstall = radeon_driver_irq_uninstall,
102 	.irq_handler = radeon_driver_irq_handler,
103 	.reclaim_buffers = drm_core_reclaim_buffers,
104 	.get_map_ofs = drm_core_get_map_ofs,
105 	.get_reg_ofs = drm_core_get_reg_ofs,
106 	.ioctls = radeon_ioctls,
107 	.dma_ioctl = radeon_cp_buffers,
108 	.fops = {
109 		 .owner = THIS_MODULE,
110 		 .open = drm_open,
111 		 .release = drm_release,
112 		 .ioctl = drm_ioctl,
113 		 .mmap = drm_mmap,
114 		 .poll = drm_poll,
115 		 .fasync = drm_fasync,
116 #ifdef CONFIG_COMPAT
117 		 .compat_ioctl = radeon_compat_ioctl,
118 #endif
119 	},
120 
121 	.pci_driver = {
122 		 .name = DRIVER_NAME,
123 		 .id_table = pciidlist,
124 	},
125 
126 	.name = DRIVER_NAME,
127 	.desc = DRIVER_DESC,
128 	.date = DRIVER_DATE,
129 	.major = DRIVER_MAJOR,
130 	.minor = DRIVER_MINOR,
131 	.patchlevel = DRIVER_PATCHLEVEL,
132 };
133 
134 static int __init radeon_init(void)
135 {
136 	driver.num_ioctls = radeon_max_ioctl;
137 	return drm_init(&driver);
138 }
139 
140 static void __exit radeon_exit(void)
141 {
142 	drm_exit(&driver);
143 }
144 
145 module_init(radeon_init);
146 module_exit(radeon_exit);
147 
148 MODULE_AUTHOR(DRIVER_AUTHOR);
149 MODULE_DESCRIPTION(DRIVER_DESC);
150 MODULE_LICENSE("GPL and additional rights");
151