i915_drv.c 21 KB

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  1. /* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
  2. */
  3. /*
  4. *
  5. * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
  6. * All Rights Reserved.
  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. *
  28. */
  29. #include <linux/device.h>
  30. #include "drmP.h"
  31. #include "drm.h"
  32. #include "i915_drm.h"
  33. #include "i915_drv.h"
  34. #include "intel_drv.h"
  35. #include <linux/console.h>
  36. #include "drm_crtc_helper.h"
  37. static int i915_modeset = -1;
  38. module_param_named(modeset, i915_modeset, int, 0400);
  39. unsigned int i915_fbpercrtc = 0;
  40. module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
  41. int i915_panel_ignore_lid = 0;
  42. module_param_named(panel_ignore_lid, i915_panel_ignore_lid, int, 0600);
  43. unsigned int i915_powersave = 1;
  44. module_param_named(powersave, i915_powersave, int, 0600);
  45. unsigned int i915_enable_rc6 = 0;
  46. module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600);
  47. unsigned int i915_lvds_downclock = 0;
  48. module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
  49. unsigned int i915_panel_use_ssc = 1;
  50. module_param_named(lvds_use_ssc, i915_panel_use_ssc, int, 0600);
  51. int i915_vbt_sdvo_panel_type = -1;
  52. module_param_named(vbt_sdvo_panel_type, i915_vbt_sdvo_panel_type, int, 0600);
  53. static bool i915_try_reset = true;
  54. module_param_named(reset, i915_try_reset, bool, 0600);
  55. static struct drm_driver driver;
  56. extern int intel_agp_enabled;
  57. #define INTEL_VGA_DEVICE(id, info) { \
  58. .class = PCI_CLASS_DISPLAY_VGA << 8, \
  59. .class_mask = 0xff0000, \
  60. .vendor = 0x8086, \
  61. .device = id, \
  62. .subvendor = PCI_ANY_ID, \
  63. .subdevice = PCI_ANY_ID, \
  64. .driver_data = (unsigned long) info }
  65. static const struct intel_device_info intel_i830_info = {
  66. .gen = 2, .is_mobile = 1, .cursor_needs_physical = 1,
  67. .has_overlay = 1, .overlay_needs_physical = 1,
  68. };
  69. static const struct intel_device_info intel_845g_info = {
  70. .gen = 2,
  71. .has_overlay = 1, .overlay_needs_physical = 1,
  72. };
  73. static const struct intel_device_info intel_i85x_info = {
  74. .gen = 2, .is_i85x = 1, .is_mobile = 1,
  75. .cursor_needs_physical = 1,
  76. .has_overlay = 1, .overlay_needs_physical = 1,
  77. };
  78. static const struct intel_device_info intel_i865g_info = {
  79. .gen = 2,
  80. .has_overlay = 1, .overlay_needs_physical = 1,
  81. };
  82. static const struct intel_device_info intel_i915g_info = {
  83. .gen = 3, .is_i915g = 1, .cursor_needs_physical = 1,
  84. .has_overlay = 1, .overlay_needs_physical = 1,
  85. };
  86. static const struct intel_device_info intel_i915gm_info = {
  87. .gen = 3, .is_mobile = 1,
  88. .cursor_needs_physical = 1,
  89. .has_overlay = 1, .overlay_needs_physical = 1,
  90. .supports_tv = 1,
  91. };
  92. static const struct intel_device_info intel_i945g_info = {
  93. .gen = 3, .has_hotplug = 1, .cursor_needs_physical = 1,
  94. .has_overlay = 1, .overlay_needs_physical = 1,
  95. };
  96. static const struct intel_device_info intel_i945gm_info = {
  97. .gen = 3, .is_i945gm = 1, .is_mobile = 1,
  98. .has_hotplug = 1, .cursor_needs_physical = 1,
  99. .has_overlay = 1, .overlay_needs_physical = 1,
  100. .supports_tv = 1,
  101. };
  102. static const struct intel_device_info intel_i965g_info = {
  103. .gen = 4, .is_broadwater = 1,
  104. .has_hotplug = 1,
  105. .has_overlay = 1,
  106. };
  107. static const struct intel_device_info intel_i965gm_info = {
  108. .gen = 4, .is_crestline = 1,
  109. .is_mobile = 1, .has_fbc = 1, .has_hotplug = 1,
  110. .has_overlay = 1,
  111. .supports_tv = 1,
  112. };
  113. static const struct intel_device_info intel_g33_info = {
  114. .gen = 3, .is_g33 = 1,
  115. .need_gfx_hws = 1, .has_hotplug = 1,
  116. .has_overlay = 1,
  117. };
  118. static const struct intel_device_info intel_g45_info = {
  119. .gen = 4, .is_g4x = 1, .need_gfx_hws = 1,
  120. .has_pipe_cxsr = 1, .has_hotplug = 1,
  121. .has_bsd_ring = 1,
  122. };
  123. static const struct intel_device_info intel_gm45_info = {
  124. .gen = 4, .is_g4x = 1,
  125. .is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1,
  126. .has_pipe_cxsr = 1, .has_hotplug = 1,
  127. .supports_tv = 1,
  128. .has_bsd_ring = 1,
  129. };
  130. static const struct intel_device_info intel_pineview_info = {
  131. .gen = 3, .is_g33 = 1, .is_pineview = 1, .is_mobile = 1,
  132. .need_gfx_hws = 1, .has_hotplug = 1,
  133. .has_overlay = 1,
  134. };
  135. static const struct intel_device_info intel_ironlake_d_info = {
  136. .gen = 5,
  137. .need_gfx_hws = 1, .has_pipe_cxsr = 1, .has_hotplug = 1,
  138. .has_bsd_ring = 1,
  139. };
  140. static const struct intel_device_info intel_ironlake_m_info = {
  141. .gen = 5, .is_mobile = 1,
  142. .need_gfx_hws = 1, .has_hotplug = 1,
  143. .has_fbc = 0, /* disabled due to buggy hardware */
  144. .has_bsd_ring = 1,
  145. };
  146. static const struct intel_device_info intel_sandybridge_d_info = {
  147. .gen = 6,
  148. .need_gfx_hws = 1, .has_hotplug = 1,
  149. .has_bsd_ring = 1,
  150. .has_blt_ring = 1,
  151. };
  152. static const struct intel_device_info intel_sandybridge_m_info = {
  153. .gen = 6, .is_mobile = 1,
  154. .need_gfx_hws = 1, .has_hotplug = 1,
  155. .has_fbc = 1,
  156. .has_bsd_ring = 1,
  157. .has_blt_ring = 1,
  158. };
  159. static const struct pci_device_id pciidlist[] = { /* aka */
  160. INTEL_VGA_DEVICE(0x3577, &intel_i830_info), /* I830_M */
  161. INTEL_VGA_DEVICE(0x2562, &intel_845g_info), /* 845_G */
  162. INTEL_VGA_DEVICE(0x3582, &intel_i85x_info), /* I855_GM */
  163. INTEL_VGA_DEVICE(0x358e, &intel_i85x_info),
  164. INTEL_VGA_DEVICE(0x2572, &intel_i865g_info), /* I865_G */
  165. INTEL_VGA_DEVICE(0x2582, &intel_i915g_info), /* I915_G */
  166. INTEL_VGA_DEVICE(0x258a, &intel_i915g_info), /* E7221_G */
  167. INTEL_VGA_DEVICE(0x2592, &intel_i915gm_info), /* I915_GM */
  168. INTEL_VGA_DEVICE(0x2772, &intel_i945g_info), /* I945_G */
  169. INTEL_VGA_DEVICE(0x27a2, &intel_i945gm_info), /* I945_GM */
  170. INTEL_VGA_DEVICE(0x27ae, &intel_i945gm_info), /* I945_GME */
  171. INTEL_VGA_DEVICE(0x2972, &intel_i965g_info), /* I946_GZ */
  172. INTEL_VGA_DEVICE(0x2982, &intel_i965g_info), /* G35_G */
  173. INTEL_VGA_DEVICE(0x2992, &intel_i965g_info), /* I965_Q */
  174. INTEL_VGA_DEVICE(0x29a2, &intel_i965g_info), /* I965_G */
  175. INTEL_VGA_DEVICE(0x29b2, &intel_g33_info), /* Q35_G */
  176. INTEL_VGA_DEVICE(0x29c2, &intel_g33_info), /* G33_G */
  177. INTEL_VGA_DEVICE(0x29d2, &intel_g33_info), /* Q33_G */
  178. INTEL_VGA_DEVICE(0x2a02, &intel_i965gm_info), /* I965_GM */
  179. INTEL_VGA_DEVICE(0x2a12, &intel_i965gm_info), /* I965_GME */
  180. INTEL_VGA_DEVICE(0x2a42, &intel_gm45_info), /* GM45_G */
  181. INTEL_VGA_DEVICE(0x2e02, &intel_g45_info), /* IGD_E_G */
  182. INTEL_VGA_DEVICE(0x2e12, &intel_g45_info), /* Q45_G */
  183. INTEL_VGA_DEVICE(0x2e22, &intel_g45_info), /* G45_G */
  184. INTEL_VGA_DEVICE(0x2e32, &intel_g45_info), /* G41_G */
  185. INTEL_VGA_DEVICE(0x2e42, &intel_g45_info), /* B43_G */
  186. INTEL_VGA_DEVICE(0x2e92, &intel_g45_info), /* B43_G.1 */
  187. INTEL_VGA_DEVICE(0xa001, &intel_pineview_info),
  188. INTEL_VGA_DEVICE(0xa011, &intel_pineview_info),
  189. INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info),
  190. INTEL_VGA_DEVICE(0x0046, &intel_ironlake_m_info),
  191. INTEL_VGA_DEVICE(0x0102, &intel_sandybridge_d_info),
  192. INTEL_VGA_DEVICE(0x0112, &intel_sandybridge_d_info),
  193. INTEL_VGA_DEVICE(0x0122, &intel_sandybridge_d_info),
  194. INTEL_VGA_DEVICE(0x0106, &intel_sandybridge_m_info),
  195. INTEL_VGA_DEVICE(0x0116, &intel_sandybridge_m_info),
  196. INTEL_VGA_DEVICE(0x0126, &intel_sandybridge_m_info),
  197. INTEL_VGA_DEVICE(0x010A, &intel_sandybridge_d_info),
  198. {0, 0, 0}
  199. };
  200. #if defined(CONFIG_DRM_I915_KMS)
  201. MODULE_DEVICE_TABLE(pci, pciidlist);
  202. #endif
  203. #define INTEL_PCH_DEVICE_ID_MASK 0xff00
  204. #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
  205. void intel_detect_pch (struct drm_device *dev)
  206. {
  207. struct drm_i915_private *dev_priv = dev->dev_private;
  208. struct pci_dev *pch;
  209. /*
  210. * The reason to probe ISA bridge instead of Dev31:Fun0 is to
  211. * make graphics device passthrough work easy for VMM, that only
  212. * need to expose ISA bridge to let driver know the real hardware
  213. * underneath. This is a requirement from virtualization team.
  214. */
  215. pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL);
  216. if (pch) {
  217. if (pch->vendor == PCI_VENDOR_ID_INTEL) {
  218. int id;
  219. id = pch->device & INTEL_PCH_DEVICE_ID_MASK;
  220. if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) {
  221. dev_priv->pch_type = PCH_CPT;
  222. DRM_DEBUG_KMS("Found CougarPoint PCH\n");
  223. }
  224. }
  225. pci_dev_put(pch);
  226. }
  227. }
  228. void __gen6_force_wake_get(struct drm_i915_private *dev_priv)
  229. {
  230. int count;
  231. count = 0;
  232. while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
  233. udelay(10);
  234. I915_WRITE_NOTRACE(FORCEWAKE, 1);
  235. POSTING_READ(FORCEWAKE);
  236. count = 0;
  237. while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1) == 0)
  238. udelay(10);
  239. }
  240. void __gen6_force_wake_put(struct drm_i915_private *dev_priv)
  241. {
  242. I915_WRITE_NOTRACE(FORCEWAKE, 0);
  243. POSTING_READ(FORCEWAKE);
  244. }
  245. static int i915_drm_freeze(struct drm_device *dev)
  246. {
  247. struct drm_i915_private *dev_priv = dev->dev_private;
  248. drm_kms_helper_poll_disable(dev);
  249. pci_save_state(dev->pdev);
  250. /* If KMS is active, we do the leavevt stuff here */
  251. if (drm_core_check_feature(dev, DRIVER_MODESET)) {
  252. int error = i915_gem_idle(dev);
  253. if (error) {
  254. dev_err(&dev->pdev->dev,
  255. "GEM idle failed, resume might fail\n");
  256. return error;
  257. }
  258. drm_irq_uninstall(dev);
  259. }
  260. i915_save_state(dev);
  261. intel_opregion_fini(dev);
  262. /* Modeset on resume, not lid events */
  263. dev_priv->modeset_on_lid = 0;
  264. return 0;
  265. }
  266. int i915_suspend(struct drm_device *dev, pm_message_t state)
  267. {
  268. int error;
  269. if (!dev || !dev->dev_private) {
  270. DRM_ERROR("dev: %p\n", dev);
  271. DRM_ERROR("DRM not initialized, aborting suspend.\n");
  272. return -ENODEV;
  273. }
  274. if (state.event == PM_EVENT_PRETHAW)
  275. return 0;
  276. if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
  277. return 0;
  278. error = i915_drm_freeze(dev);
  279. if (error)
  280. return error;
  281. if (state.event == PM_EVENT_SUSPEND) {
  282. /* Shut down the device */
  283. pci_disable_device(dev->pdev);
  284. pci_set_power_state(dev->pdev, PCI_D3hot);
  285. }
  286. return 0;
  287. }
  288. static int i915_drm_thaw(struct drm_device *dev)
  289. {
  290. struct drm_i915_private *dev_priv = dev->dev_private;
  291. int error = 0;
  292. if (drm_core_check_feature(dev, DRIVER_MODESET)) {
  293. mutex_lock(&dev->struct_mutex);
  294. i915_gem_restore_gtt_mappings(dev);
  295. mutex_unlock(&dev->struct_mutex);
  296. }
  297. i915_restore_state(dev);
  298. intel_opregion_setup(dev);
  299. /* KMS EnterVT equivalent */
  300. if (drm_core_check_feature(dev, DRIVER_MODESET)) {
  301. mutex_lock(&dev->struct_mutex);
  302. dev_priv->mm.suspended = 0;
  303. error = i915_gem_init_ringbuffer(dev);
  304. mutex_unlock(&dev->struct_mutex);
  305. drm_mode_config_reset(dev);
  306. drm_irq_install(dev);
  307. /* Resume the modeset for every activated CRTC */
  308. drm_helper_resume_force_mode(dev);
  309. if (IS_IRONLAKE_M(dev))
  310. ironlake_enable_rc6(dev);
  311. }
  312. intel_opregion_init(dev);
  313. dev_priv->modeset_on_lid = 0;
  314. return error;
  315. }
  316. int i915_resume(struct drm_device *dev)
  317. {
  318. int ret;
  319. if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
  320. return 0;
  321. if (pci_enable_device(dev->pdev))
  322. return -EIO;
  323. pci_set_master(dev->pdev);
  324. ret = i915_drm_thaw(dev);
  325. if (ret)
  326. return ret;
  327. drm_kms_helper_poll_enable(dev);
  328. return 0;
  329. }
  330. static int i8xx_do_reset(struct drm_device *dev, u8 flags)
  331. {
  332. struct drm_i915_private *dev_priv = dev->dev_private;
  333. if (IS_I85X(dev))
  334. return -ENODEV;
  335. I915_WRITE(D_STATE, I915_READ(D_STATE) | DSTATE_GFX_RESET_I830);
  336. POSTING_READ(D_STATE);
  337. if (IS_I830(dev) || IS_845G(dev)) {
  338. I915_WRITE(DEBUG_RESET_I830,
  339. DEBUG_RESET_DISPLAY |
  340. DEBUG_RESET_RENDER |
  341. DEBUG_RESET_FULL);
  342. POSTING_READ(DEBUG_RESET_I830);
  343. msleep(1);
  344. I915_WRITE(DEBUG_RESET_I830, 0);
  345. POSTING_READ(DEBUG_RESET_I830);
  346. }
  347. msleep(1);
  348. I915_WRITE(D_STATE, I915_READ(D_STATE) & ~DSTATE_GFX_RESET_I830);
  349. POSTING_READ(D_STATE);
  350. return 0;
  351. }
  352. static int i965_reset_complete(struct drm_device *dev)
  353. {
  354. u8 gdrst;
  355. pci_read_config_byte(dev->pdev, I965_GDRST, &gdrst);
  356. return gdrst & 0x1;
  357. }
  358. static int i965_do_reset(struct drm_device *dev, u8 flags)
  359. {
  360. u8 gdrst;
  361. /*
  362. * Set the domains we want to reset (GRDOM/bits 2 and 3) as
  363. * well as the reset bit (GR/bit 0). Setting the GR bit
  364. * triggers the reset; when done, the hardware will clear it.
  365. */
  366. pci_read_config_byte(dev->pdev, I965_GDRST, &gdrst);
  367. pci_write_config_byte(dev->pdev, I965_GDRST, gdrst | flags | 0x1);
  368. return wait_for(i965_reset_complete(dev), 500);
  369. }
  370. static int ironlake_do_reset(struct drm_device *dev, u8 flags)
  371. {
  372. struct drm_i915_private *dev_priv = dev->dev_private;
  373. u32 gdrst = I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR);
  374. I915_WRITE(MCHBAR_MIRROR_BASE + ILK_GDSR, gdrst | flags | 0x1);
  375. return wait_for(I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR) & 0x1, 500);
  376. }
  377. static int gen6_do_reset(struct drm_device *dev, u8 flags)
  378. {
  379. struct drm_i915_private *dev_priv = dev->dev_private;
  380. I915_WRITE(GEN6_GDRST, GEN6_GRDOM_FULL);
  381. return wait_for((I915_READ(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0, 500);
  382. }
  383. /**
  384. * i965_reset - reset chip after a hang
  385. * @dev: drm device to reset
  386. * @flags: reset domains
  387. *
  388. * Reset the chip. Useful if a hang is detected. Returns zero on successful
  389. * reset or otherwise an error code.
  390. *
  391. * Procedure is fairly simple:
  392. * - reset the chip using the reset reg
  393. * - re-init context state
  394. * - re-init hardware status page
  395. * - re-init ring buffer
  396. * - re-init interrupt state
  397. * - re-init display
  398. */
  399. int i915_reset(struct drm_device *dev, u8 flags)
  400. {
  401. drm_i915_private_t *dev_priv = dev->dev_private;
  402. /*
  403. * We really should only reset the display subsystem if we actually
  404. * need to
  405. */
  406. bool need_display = true;
  407. int ret;
  408. if (!i915_try_reset)
  409. return 0;
  410. if (!mutex_trylock(&dev->struct_mutex))
  411. return -EBUSY;
  412. i915_gem_reset(dev);
  413. ret = -ENODEV;
  414. if (get_seconds() - dev_priv->last_gpu_reset < 5) {
  415. DRM_ERROR("GPU hanging too fast, declaring wedged!\n");
  416. } else switch (INTEL_INFO(dev)->gen) {
  417. case 6:
  418. ret = gen6_do_reset(dev, flags);
  419. break;
  420. case 5:
  421. ret = ironlake_do_reset(dev, flags);
  422. break;
  423. case 4:
  424. ret = i965_do_reset(dev, flags);
  425. break;
  426. case 2:
  427. ret = i8xx_do_reset(dev, flags);
  428. break;
  429. }
  430. dev_priv->last_gpu_reset = get_seconds();
  431. if (ret) {
  432. DRM_ERROR("Failed to reset chip.\n");
  433. mutex_unlock(&dev->struct_mutex);
  434. return ret;
  435. }
  436. /* Ok, now get things going again... */
  437. /*
  438. * Everything depends on having the GTT running, so we need to start
  439. * there. Fortunately we don't need to do this unless we reset the
  440. * chip at a PCI level.
  441. *
  442. * Next we need to restore the context, but we don't use those
  443. * yet either...
  444. *
  445. * Ring buffer needs to be re-initialized in the KMS case, or if X
  446. * was running at the time of the reset (i.e. we weren't VT
  447. * switched away).
  448. */
  449. if (drm_core_check_feature(dev, DRIVER_MODESET) ||
  450. !dev_priv->mm.suspended) {
  451. dev_priv->mm.suspended = 0;
  452. dev_priv->ring[RCS].init(&dev_priv->ring[RCS]);
  453. if (HAS_BSD(dev))
  454. dev_priv->ring[VCS].init(&dev_priv->ring[VCS]);
  455. if (HAS_BLT(dev))
  456. dev_priv->ring[BCS].init(&dev_priv->ring[BCS]);
  457. mutex_unlock(&dev->struct_mutex);
  458. drm_irq_uninstall(dev);
  459. drm_mode_config_reset(dev);
  460. drm_irq_install(dev);
  461. mutex_lock(&dev->struct_mutex);
  462. }
  463. mutex_unlock(&dev->struct_mutex);
  464. /*
  465. * Perform a full modeset as on later generations, e.g. Ironlake, we may
  466. * need to retrain the display link and cannot just restore the register
  467. * values.
  468. */
  469. if (need_display) {
  470. mutex_lock(&dev->mode_config.mutex);
  471. drm_helper_resume_force_mode(dev);
  472. mutex_unlock(&dev->mode_config.mutex);
  473. }
  474. return 0;
  475. }
  476. static int __devinit
  477. i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
  478. {
  479. /* Only bind to function 0 of the device. Early generations
  480. * used function 1 as a placeholder for multi-head. This causes
  481. * us confusion instead, especially on the systems where both
  482. * functions have the same PCI-ID!
  483. */
  484. if (PCI_FUNC(pdev->devfn))
  485. return -ENODEV;
  486. return drm_get_pci_dev(pdev, ent, &driver);
  487. }
  488. static void
  489. i915_pci_remove(struct pci_dev *pdev)
  490. {
  491. struct drm_device *dev = pci_get_drvdata(pdev);
  492. drm_put_dev(dev);
  493. }
  494. static int i915_pm_suspend(struct device *dev)
  495. {
  496. struct pci_dev *pdev = to_pci_dev(dev);
  497. struct drm_device *drm_dev = pci_get_drvdata(pdev);
  498. int error;
  499. if (!drm_dev || !drm_dev->dev_private) {
  500. dev_err(dev, "DRM not initialized, aborting suspend.\n");
  501. return -ENODEV;
  502. }
  503. if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
  504. return 0;
  505. error = i915_drm_freeze(drm_dev);
  506. if (error)
  507. return error;
  508. pci_disable_device(pdev);
  509. pci_set_power_state(pdev, PCI_D3hot);
  510. return 0;
  511. }
  512. static int i915_pm_resume(struct device *dev)
  513. {
  514. struct pci_dev *pdev = to_pci_dev(dev);
  515. struct drm_device *drm_dev = pci_get_drvdata(pdev);
  516. return i915_resume(drm_dev);
  517. }
  518. static int i915_pm_freeze(struct device *dev)
  519. {
  520. struct pci_dev *pdev = to_pci_dev(dev);
  521. struct drm_device *drm_dev = pci_get_drvdata(pdev);
  522. if (!drm_dev || !drm_dev->dev_private) {
  523. dev_err(dev, "DRM not initialized, aborting suspend.\n");
  524. return -ENODEV;
  525. }
  526. return i915_drm_freeze(drm_dev);
  527. }
  528. static int i915_pm_thaw(struct device *dev)
  529. {
  530. struct pci_dev *pdev = to_pci_dev(dev);
  531. struct drm_device *drm_dev = pci_get_drvdata(pdev);
  532. return i915_drm_thaw(drm_dev);
  533. }
  534. static int i915_pm_poweroff(struct device *dev)
  535. {
  536. struct pci_dev *pdev = to_pci_dev(dev);
  537. struct drm_device *drm_dev = pci_get_drvdata(pdev);
  538. return i915_drm_freeze(drm_dev);
  539. }
  540. static const struct dev_pm_ops i915_pm_ops = {
  541. .suspend = i915_pm_suspend,
  542. .resume = i915_pm_resume,
  543. .freeze = i915_pm_freeze,
  544. .thaw = i915_pm_thaw,
  545. .poweroff = i915_pm_poweroff,
  546. .restore = i915_pm_resume,
  547. };
  548. static struct vm_operations_struct i915_gem_vm_ops = {
  549. .fault = i915_gem_fault,
  550. .open = drm_gem_vm_open,
  551. .close = drm_gem_vm_close,
  552. };
  553. static struct drm_driver driver = {
  554. /* don't use mtrr's here, the Xserver or user space app should
  555. * deal with them for intel hardware.
  556. */
  557. .driver_features =
  558. DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
  559. DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
  560. .load = i915_driver_load,
  561. .unload = i915_driver_unload,
  562. .open = i915_driver_open,
  563. .lastclose = i915_driver_lastclose,
  564. .preclose = i915_driver_preclose,
  565. .postclose = i915_driver_postclose,
  566. /* Used in place of i915_pm_ops for non-DRIVER_MODESET */
  567. .suspend = i915_suspend,
  568. .resume = i915_resume,
  569. .device_is_agp = i915_driver_device_is_agp,
  570. .enable_vblank = i915_enable_vblank,
  571. .disable_vblank = i915_disable_vblank,
  572. .get_vblank_timestamp = i915_get_vblank_timestamp,
  573. .get_scanout_position = i915_get_crtc_scanoutpos,
  574. .irq_preinstall = i915_driver_irq_preinstall,
  575. .irq_postinstall = i915_driver_irq_postinstall,
  576. .irq_uninstall = i915_driver_irq_uninstall,
  577. .irq_handler = i915_driver_irq_handler,
  578. .reclaim_buffers = drm_core_reclaim_buffers,
  579. .master_create = i915_master_create,
  580. .master_destroy = i915_master_destroy,
  581. #if defined(CONFIG_DEBUG_FS)
  582. .debugfs_init = i915_debugfs_init,
  583. .debugfs_cleanup = i915_debugfs_cleanup,
  584. #endif
  585. .gem_init_object = i915_gem_init_object,
  586. .gem_free_object = i915_gem_free_object,
  587. .gem_vm_ops = &i915_gem_vm_ops,
  588. .ioctls = i915_ioctls,
  589. .fops = {
  590. .owner = THIS_MODULE,
  591. .open = drm_open,
  592. .release = drm_release,
  593. .unlocked_ioctl = drm_ioctl,
  594. .mmap = drm_gem_mmap,
  595. .poll = drm_poll,
  596. .fasync = drm_fasync,
  597. .read = drm_read,
  598. #ifdef CONFIG_COMPAT
  599. .compat_ioctl = i915_compat_ioctl,
  600. #endif
  601. .llseek = noop_llseek,
  602. },
  603. .pci_driver = {
  604. .name = DRIVER_NAME,
  605. .id_table = pciidlist,
  606. .probe = i915_pci_probe,
  607. .remove = i915_pci_remove,
  608. .driver.pm = &i915_pm_ops,
  609. },
  610. .name = DRIVER_NAME,
  611. .desc = DRIVER_DESC,
  612. .date = DRIVER_DATE,
  613. .major = DRIVER_MAJOR,
  614. .minor = DRIVER_MINOR,
  615. .patchlevel = DRIVER_PATCHLEVEL,
  616. };
  617. static int __init i915_init(void)
  618. {
  619. if (!intel_agp_enabled) {
  620. DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
  621. return -ENODEV;
  622. }
  623. driver.num_ioctls = i915_max_ioctl;
  624. /*
  625. * If CONFIG_DRM_I915_KMS is set, default to KMS unless
  626. * explicitly disabled with the module pararmeter.
  627. *
  628. * Otherwise, just follow the parameter (defaulting to off).
  629. *
  630. * Allow optional vga_text_mode_force boot option to override
  631. * the default behavior.
  632. */
  633. #if defined(CONFIG_DRM_I915_KMS)
  634. if (i915_modeset != 0)
  635. driver.driver_features |= DRIVER_MODESET;
  636. #endif
  637. if (i915_modeset == 1)
  638. driver.driver_features |= DRIVER_MODESET;
  639. #ifdef CONFIG_VGA_CONSOLE
  640. if (vgacon_text_force() && i915_modeset == -1)
  641. driver.driver_features &= ~DRIVER_MODESET;
  642. #endif
  643. if (!(driver.driver_features & DRIVER_MODESET))
  644. driver.get_vblank_timestamp = NULL;
  645. return drm_init(&driver);
  646. }
  647. static void __exit i915_exit(void)
  648. {
  649. drm_exit(&driver);
  650. }
  651. module_init(i915_init);
  652. module_exit(i915_exit);
  653. MODULE_AUTHOR(DRIVER_AUTHOR);
  654. MODULE_DESCRIPTION(DRIVER_DESC);
  655. MODULE_LICENSE("GPL and additional rights");