]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/gpu/drm/i915/i915_drv.c
drm: convert drm_ioctl to unlocked_ioctl
[net-next-2.6.git] / drivers / gpu / drm / i915 / i915_drv.c
CommitLineData
1da177e4
LT
1/* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
2 */
0d6aa60b 3/*
bc54fd1a 4 *
1da177e4
LT
5 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * All Rights Reserved.
bc54fd1a
DA
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
15 *
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
18 * of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
24 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 *
0d6aa60b 28 */
1da177e4 29
5669fcac 30#include <linux/device.h>
1da177e4
LT
31#include "drmP.h"
32#include "drm.h"
33#include "i915_drm.h"
34#include "i915_drv.h"
35
36#include "drm_pciids.h"
79e53945 37#include <linux/console.h>
354ff967 38#include "drm_crtc_helper.h"
79e53945 39
d6073d77 40static int i915_modeset = -1;
79e53945
JB
41module_param_named(modeset, i915_modeset, int, 0400);
42
43unsigned int i915_fbpercrtc = 0;
44module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
1da177e4 45
652c393a
JB
46unsigned int i915_powersave = 1;
47module_param_named(powersave, i915_powersave, int, 0400);
48
112b715e
KH
49static struct drm_driver driver;
50
1da177e4
LT
51static struct pci_device_id pciidlist[] = {
52 i915_PCI_IDS
53};
54
79e53945
JB
55#if defined(CONFIG_DRM_I915_KMS)
56MODULE_DEVICE_TABLE(pci, pciidlist);
57#endif
58
b932ccb5 59static int i915_suspend(struct drm_device *dev, pm_message_t state)
ba8bbcf6
JB
60{
61 struct drm_i915_private *dev_priv = dev->dev_private;
ba8bbcf6
JB
62
63 if (!dev || !dev_priv) {
1ae8c0a5
KP
64 DRM_ERROR("dev: %p, dev_priv: %p\n", dev, dev_priv);
65 DRM_ERROR("DRM not initialized, aborting suspend.\n");
ba8bbcf6
JB
66 return -ENODEV;
67 }
68
b932ccb5
DA
69 if (state.event == PM_EVENT_PRETHAW)
70 return 0;
71
ba8bbcf6 72 pci_save_state(dev->pdev);
ba8bbcf6 73
5669fcac 74 /* If KMS is active, we do the leavevt stuff here */
226485e9
JB
75 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
76 if (i915_gem_idle(dev))
77 dev_err(&dev->pdev->dev,
78 "GEM idle failed, resume may fail\n");
79 drm_irq_uninstall(dev);
5669fcac
JB
80 }
81
9e06dd39
JB
82 i915_save_state(dev);
83
3b1c1c11 84 intel_opregion_free(dev, 1);
8ee1c3db 85
b932ccb5
DA
86 if (state.event == PM_EVENT_SUSPEND) {
87 /* Shut down the device */
88 pci_disable_device(dev->pdev);
89 pci_set_power_state(dev->pdev, PCI_D3hot);
90 }
ba8bbcf6 91
c9354c85
LT
92 /* Modeset on resume, not lid events */
93 dev_priv->modeset_on_lid = 0;
06891e27 94
ba8bbcf6
JB
95 return 0;
96}
97
98static int i915_resume(struct drm_device *dev)
99{
5669fcac
JB
100 struct drm_i915_private *dev_priv = dev->dev_private;
101 int ret = 0;
102
ba8bbcf6
JB
103 if (pci_enable_device(dev->pdev))
104 return -1;
ea7b44c8 105 pci_set_master(dev->pdev);
ba8bbcf6 106
317c35d1 107 i915_restore_state(dev);
ba8bbcf6 108
74a365b3 109 intel_opregion_init(dev, 1);
8ee1c3db 110
5669fcac
JB
111 /* KMS EnterVT equivalent */
112 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
113 mutex_lock(&dev->struct_mutex);
114 dev_priv->mm.suspended = 0;
115
116 ret = i915_gem_init_ringbuffer(dev);
117 if (ret != 0)
118 ret = -1;
119 mutex_unlock(&dev->struct_mutex);
226485e9
JB
120
121 drm_irq_install(dev);
5669fcac 122 }
354ff967
ZY
123 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
124 /* Resume the modeset for every activated CRTC */
125 drm_helper_resume_force_mode(dev);
126 }
5669fcac 127
c9354c85 128 dev_priv->modeset_on_lid = 0;
06891e27 129
5669fcac 130 return ret;
ba8bbcf6
JB
131}
132
11ed50ec
BG
133/**
134 * i965_reset - reset chip after a hang
135 * @dev: drm device to reset
136 * @flags: reset domains
137 *
138 * Reset the chip. Useful if a hang is detected. Returns zero on successful
139 * reset or otherwise an error code.
140 *
141 * Procedure is fairly simple:
142 * - reset the chip using the reset reg
143 * - re-init context state
144 * - re-init hardware status page
145 * - re-init ring buffer
146 * - re-init interrupt state
147 * - re-init display
148 */
149int i965_reset(struct drm_device *dev, u8 flags)
150{
151 drm_i915_private_t *dev_priv = dev->dev_private;
152 unsigned long timeout;
153 u8 gdrst;
154 /*
155 * We really should only reset the display subsystem if we actually
156 * need to
157 */
158 bool need_display = true;
159
160 mutex_lock(&dev->struct_mutex);
161
162 /*
163 * Clear request list
164 */
165 i915_gem_retire_requests(dev);
166
167 if (need_display)
168 i915_save_display(dev);
169
170 if (IS_I965G(dev) || IS_G4X(dev)) {
171 /*
172 * Set the domains we want to reset, then the reset bit (bit 0).
173 * Clear the reset bit after a while and wait for hardware status
174 * bit (bit 1) to be set
175 */
176 pci_read_config_byte(dev->pdev, GDRST, &gdrst);
177 pci_write_config_byte(dev->pdev, GDRST, gdrst | flags | ((flags == GDRST_FULL) ? 0x1 : 0x0));
178 udelay(50);
179 pci_write_config_byte(dev->pdev, GDRST, gdrst & 0xfe);
180
181 /* ...we don't want to loop forever though, 500ms should be plenty */
182 timeout = jiffies + msecs_to_jiffies(500);
183 do {
184 udelay(100);
185 pci_read_config_byte(dev->pdev, GDRST, &gdrst);
186 } while ((gdrst & 0x1) && time_after(timeout, jiffies));
187
188 if (gdrst & 0x1) {
189 WARN(true, "i915: Failed to reset chip\n");
190 mutex_unlock(&dev->struct_mutex);
191 return -EIO;
192 }
193 } else {
194 DRM_ERROR("Error occurred. Don't know how to reset this chip.\n");
195 return -ENODEV;
196 }
197
198 /* Ok, now get things going again... */
199
200 /*
201 * Everything depends on having the GTT running, so we need to start
202 * there. Fortunately we don't need to do this unless we reset the
203 * chip at a PCI level.
204 *
205 * Next we need to restore the context, but we don't use those
206 * yet either...
207 *
208 * Ring buffer needs to be re-initialized in the KMS case, or if X
209 * was running at the time of the reset (i.e. we weren't VT
210 * switched away).
211 */
212 if (drm_core_check_feature(dev, DRIVER_MODESET) ||
213 !dev_priv->mm.suspended) {
214 drm_i915_ring_buffer_t *ring = &dev_priv->ring;
215 struct drm_gem_object *obj = ring->ring_obj;
216 struct drm_i915_gem_object *obj_priv = obj->driver_private;
217 dev_priv->mm.suspended = 0;
218
219 /* Stop the ring if it's running. */
220 I915_WRITE(PRB0_CTL, 0);
221 I915_WRITE(PRB0_TAIL, 0);
222 I915_WRITE(PRB0_HEAD, 0);
223
224 /* Initialize the ring. */
225 I915_WRITE(PRB0_START, obj_priv->gtt_offset);
226 I915_WRITE(PRB0_CTL,
227 ((obj->size - 4096) & RING_NR_PAGES) |
228 RING_NO_REPORT |
229 RING_VALID);
230 if (!drm_core_check_feature(dev, DRIVER_MODESET))
231 i915_kernel_lost_context(dev);
232 else {
233 ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
234 ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR;
235 ring->space = ring->head - (ring->tail + 8);
236 if (ring->space < 0)
237 ring->space += ring->Size;
238 }
239
240 mutex_unlock(&dev->struct_mutex);
241 drm_irq_uninstall(dev);
242 drm_irq_install(dev);
243 mutex_lock(&dev->struct_mutex);
244 }
245
246 /*
247 * Display needs restore too...
248 */
249 if (need_display)
250 i915_restore_display(dev);
251
252 mutex_unlock(&dev->struct_mutex);
253 return 0;
254}
255
256
112b715e
KH
257static int __devinit
258i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
259{
260 return drm_get_dev(pdev, ent, &driver);
261}
262
263static void
264i915_pci_remove(struct pci_dev *pdev)
265{
266 struct drm_device *dev = pci_get_drvdata(pdev);
267
268 drm_put_dev(dev);
269}
270
271static int
272i915_pci_suspend(struct pci_dev *pdev, pm_message_t state)
273{
274 struct drm_device *dev = pci_get_drvdata(pdev);
275
276 return i915_suspend(dev, state);
277}
278
279static int
280i915_pci_resume(struct pci_dev *pdev)
281{
282 struct drm_device *dev = pci_get_drvdata(pdev);
283
284 return i915_resume(dev);
285}
286
de151cf6
JB
287static struct vm_operations_struct i915_gem_vm_ops = {
288 .fault = i915_gem_fault,
ab00b3e5
JB
289 .open = drm_gem_vm_open,
290 .close = drm_gem_vm_close,
de151cf6
JB
291};
292
1da177e4 293static struct drm_driver driver = {
792d2b9a
DA
294 /* don't use mtrr's here, the Xserver or user space app should
295 * deal with them for intel hardware.
296 */
673a394b
EA
297 .driver_features =
298 DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
299 DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
22eae947 300 .load = i915_driver_load,
ba8bbcf6 301 .unload = i915_driver_unload,
673a394b 302 .open = i915_driver_open,
22eae947
DA
303 .lastclose = i915_driver_lastclose,
304 .preclose = i915_driver_preclose,
673a394b 305 .postclose = i915_driver_postclose,
ba8bbcf6
JB
306 .suspend = i915_suspend,
307 .resume = i915_resume,
cda17380 308 .device_is_agp = i915_driver_device_is_agp,
0a3e67a4
JB
309 .enable_vblank = i915_enable_vblank,
310 .disable_vblank = i915_disable_vblank,
1da177e4
LT
311 .irq_preinstall = i915_driver_irq_preinstall,
312 .irq_postinstall = i915_driver_irq_postinstall,
313 .irq_uninstall = i915_driver_irq_uninstall,
314 .irq_handler = i915_driver_irq_handler,
315 .reclaim_buffers = drm_core_reclaim_buffers,
316 .get_map_ofs = drm_core_get_map_ofs,
317 .get_reg_ofs = drm_core_get_reg_ofs,
7c1c2871
DA
318 .master_create = i915_master_create,
319 .master_destroy = i915_master_destroy,
955b12de 320#if defined(CONFIG_DEBUG_FS)
27c202ad
BG
321 .debugfs_init = i915_debugfs_init,
322 .debugfs_cleanup = i915_debugfs_cleanup,
955b12de 323#endif
673a394b
EA
324 .gem_init_object = i915_gem_init_object,
325 .gem_free_object = i915_gem_free_object,
de151cf6 326 .gem_vm_ops = &i915_gem_vm_ops,
1da177e4
LT
327 .ioctls = i915_ioctls,
328 .fops = {
b5e89ed5
DA
329 .owner = THIS_MODULE,
330 .open = drm_open,
331 .release = drm_release,
ed8b6704 332 .unlocked_ioctl = drm_ioctl,
de151cf6 333 .mmap = drm_gem_mmap,
b5e89ed5
DA
334 .poll = drm_poll,
335 .fasync = drm_fasync,
c9a9c5e0 336 .read = drm_read,
8ca7c1df 337#ifdef CONFIG_COMPAT
b5e89ed5 338 .compat_ioctl = i915_compat_ioctl,
8ca7c1df 339#endif
22eae947
DA
340 },
341
1da177e4 342 .pci_driver = {
22eae947
DA
343 .name = DRIVER_NAME,
344 .id_table = pciidlist,
112b715e
KH
345 .probe = i915_pci_probe,
346 .remove = i915_pci_remove,
347#ifdef CONFIG_PM
348 .resume = i915_pci_resume,
349 .suspend = i915_pci_suspend,
350#endif
22eae947 351 },
bc5f4523 352
22eae947
DA
353 .name = DRIVER_NAME,
354 .desc = DRIVER_DESC,
355 .date = DRIVER_DATE,
356 .major = DRIVER_MAJOR,
357 .minor = DRIVER_MINOR,
358 .patchlevel = DRIVER_PATCHLEVEL,
1da177e4
LT
359};
360
361static int __init i915_init(void)
362{
363 driver.num_ioctls = i915_max_ioctl;
79e53945 364
31169714
CW
365 i915_gem_shrinker_init();
366
79e53945
JB
367 /*
368 * If CONFIG_DRM_I915_KMS is set, default to KMS unless
369 * explicitly disabled with the module pararmeter.
370 *
371 * Otherwise, just follow the parameter (defaulting to off).
372 *
373 * Allow optional vga_text_mode_force boot option to override
374 * the default behavior.
375 */
376#if defined(CONFIG_DRM_I915_KMS)
377 if (i915_modeset != 0)
378 driver.driver_features |= DRIVER_MODESET;
379#endif
380 if (i915_modeset == 1)
381 driver.driver_features |= DRIVER_MODESET;
382
383#ifdef CONFIG_VGA_CONSOLE
384 if (vgacon_text_force() && i915_modeset == -1)
385 driver.driver_features &= ~DRIVER_MODESET;
386#endif
387
1da177e4
LT
388 return drm_init(&driver);
389}
390
391static void __exit i915_exit(void)
392{
31169714 393 i915_gem_shrinker_exit();
1da177e4
LT
394 drm_exit(&driver);
395}
396
397module_init(i915_init);
398module_exit(i915_exit);
399
b5e89ed5
DA
400MODULE_AUTHOR(DRIVER_AUTHOR);
401MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4 402MODULE_LICENSE("GPL and additional rights");