drm/radeon: fix r600 writeback across suspend/resume
[deliverable/linux.git] / drivers / gpu / drm / radeon / radeon_drv.c
CommitLineData
1da177e4
LT
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
1da177e4
LT
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
689b9d74
DA
39int radeon_no_wb;
40
61a2d07d 41MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
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42module_param_named(no_wb, radeon_no_wb, int, 0444);
43
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JB
44static int radeon_suspend(struct drm_device *dev, pm_message_t state)
45{
46 drm_radeon_private_t *dev_priv = dev->dev_private;
47
48 /* Disable *all* interrupts */
800b6995 49 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
0a3e67a4
JB
50 RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
51 RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
52 return 0;
53}
54
55static int radeon_resume(struct drm_device *dev)
56{
57 drm_radeon_private_t *dev_priv = dev->dev_private;
58
59 /* Restore interrupt registers */
800b6995 60 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
0a3e67a4
JB
61 RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
62 RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
63 return 0;
64}
65
1da177e4
LT
66static struct pci_device_id pciidlist[] = {
67 radeon_PCI_IDS
68};
69
1da177e4 70static struct drm_driver driver = {
b5e89ed5
DA
71 .driver_features =
72 DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
0a3e67a4 73 DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED,
1da177e4 74 .dev_priv_size = sizeof(drm_radeon_buf_priv_t),
22eae947
DA
75 .load = radeon_driver_load,
76 .firstopen = radeon_driver_firstopen,
77 .open = radeon_driver_open,
78 .preclose = radeon_driver_preclose,
79 .postclose = radeon_driver_postclose,
80 .lastclose = radeon_driver_lastclose,
81 .unload = radeon_driver_unload,
0a3e67a4
JB
82 .suspend = radeon_suspend,
83 .resume = radeon_resume,
84 .get_vblank_counter = radeon_get_vblank_counter,
85 .enable_vblank = radeon_enable_vblank,
86 .disable_vblank = radeon_disable_vblank,
60f2ee0b
DA
87 .master_create = radeon_master_create,
88 .master_destroy = radeon_master_destroy,
1da177e4
LT
89 .irq_preinstall = radeon_driver_irq_preinstall,
90 .irq_postinstall = radeon_driver_irq_postinstall,
91 .irq_uninstall = radeon_driver_irq_uninstall,
92 .irq_handler = radeon_driver_irq_handler,
1da177e4
LT
93 .reclaim_buffers = drm_core_reclaim_buffers,
94 .get_map_ofs = drm_core_get_map_ofs,
95 .get_reg_ofs = drm_core_get_reg_ofs,
1da177e4
LT
96 .ioctls = radeon_ioctls,
97 .dma_ioctl = radeon_cp_buffers,
98 .fops = {
b5e89ed5
DA
99 .owner = THIS_MODULE,
100 .open = drm_open,
101 .release = drm_release,
102 .ioctl = drm_ioctl,
103 .mmap = drm_mmap,
104 .poll = drm_poll,
105 .fasync = drm_fasync,
9a186645 106#ifdef CONFIG_COMPAT
b5e89ed5 107 .compat_ioctl = radeon_compat_ioctl,
9a186645 108#endif
22eae947
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109 },
110
1da177e4 111 .pci_driver = {
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DA
112 .name = DRIVER_NAME,
113 .id_table = pciidlist,
114 },
115
116 .name = DRIVER_NAME,
117 .desc = DRIVER_DESC,
118 .date = DRIVER_DATE,
119 .major = DRIVER_MAJOR,
120 .minor = DRIVER_MINOR,
121 .patchlevel = DRIVER_PATCHLEVEL,
1da177e4
LT
122};
123
124static int __init radeon_init(void)
125{
126 driver.num_ioctls = radeon_max_ioctl;
127 return drm_init(&driver);
128}
129
130static void __exit radeon_exit(void)
131{
132 drm_exit(&driver);
133}
134
135module_init(radeon_init);
136module_exit(radeon_exit);
137
b5e89ed5
DA
138MODULE_AUTHOR(DRIVER_AUTHOR);
139MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4 140MODULE_LICENSE("GPL and additional rights");
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