drivers/gpu/drm/i915/i915_drv.c - kernel/msm - Gitiles

 /* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
  */
 /*
  *
  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
  * without limitation the rights to use, copy, modify, merge, publish,
  * distribute, sub license, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
  *
  * The above copyright notice and this permission notice (including the
  * next paragraph) shall be included in all copies or substantial portions
  * of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
  */

 #include <linux/device.h>
 #include "drmP.h"
 #include "drm.h"
 #include "i915_drm.h"
 #include "i915_drv.h"

 #include "drm_pciids.h"
 #include <linux/console.h>
 #include "drm_crtc_helper.h"

 static int i915_modeset = -1;
 module_param_named(modeset, i915_modeset, int, 0400);

 unsigned int i915_fbpercrtc = 0;
 module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);

 unsigned int i915_powersave = 1;
 module_param_named(powersave, i915_powersave, int, 0400);

 static struct drm_driver driver;

 static struct pci_device_id pciidlist[] = {
 	i915_PCI_IDS
 };

 #if defined(CONFIG_DRM_I915_KMS)
 MODULE_DEVICE_TABLE(pci, pciidlist);
 #endif

 static int i915_suspend(struct drm_device *dev, pm_message_t state)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;

 	if (!dev || !dev_priv) {
 		DRM_ERROR("dev: %p, dev_priv: %p\n", dev, dev_priv);
 		DRM_ERROR("DRM not initialized, aborting suspend.\n");
 		return -ENODEV;
 	}

 	if (state.event == PM_EVENT_PRETHAW)
 		return 0;

 	pci_save_state(dev->pdev);

 	/* If KMS is active, we do the leavevt stuff here */
 	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 		if (i915_gem_idle(dev))
 			dev_err(&dev->pdev->dev,
 				"GEM idle failed, resume may fail\n");
 		drm_irq_uninstall(dev);
 	}

 	i915_save_state(dev);

 	intel_opregion_free(dev, 1);

 	if (state.event == PM_EVENT_SUSPEND) {
 		/* Shut down the device */
 		pci_disable_device(dev->pdev);
 		pci_set_power_state(dev->pdev, PCI_D3hot);
 	}

 	return 0;
 }

 static int i915_resume(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int ret = 0;

 	pci_set_power_state(dev->pdev, PCI_D0);
 	pci_restore_state(dev->pdev);
 	if (pci_enable_device(dev->pdev))
 		return -1;
 	pci_set_master(dev->pdev);

 	i915_restore_state(dev);

 	intel_opregion_init(dev, 1);

 	/* KMS EnterVT equivalent */
 	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 		mutex_lock(&dev->struct_mutex);
 		dev_priv->mm.suspended = 0;

 		ret = i915_gem_init_ringbuffer(dev);
 		if (ret != 0)
 			ret = -1;
 		mutex_unlock(&dev->struct_mutex);

 		drm_irq_install(dev);
 	}
 	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 		/* Resume the modeset for every activated CRTC */
 		drm_helper_resume_force_mode(dev);
 	}

 	return ret;
 }

 static int __devinit
 i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	return drm_get_dev(pdev, ent, &driver);
 }

 static void
 i915_pci_remove(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);

 	drm_put_dev(dev);
 }

 static int
 i915_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);

 	return i915_suspend(dev, state);
 }

 static int
 i915_pci_resume(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);

 	return i915_resume(dev);
 }

 static struct vm_operations_struct i915_gem_vm_ops = {
 	.fault = i915_gem_fault,
 	.open = drm_gem_vm_open,
 	.close = drm_gem_vm_close,
 };

 static struct drm_driver driver = {
 	/* don't use mtrr's here, the Xserver or user space app should
 	 * deal with them for intel hardware.
 	 */
 	.driver_features =
 	    DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
 	    DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
 	.load = i915_driver_load,
 	.unload = i915_driver_unload,
 	.open = i915_driver_open,
 	.lastclose = i915_driver_lastclose,
 	.preclose = i915_driver_preclose,
 	.postclose = i915_driver_postclose,
 	.suspend = i915_suspend,
 	.resume = i915_resume,
 	.device_is_agp = i915_driver_device_is_agp,
 	.enable_vblank = i915_enable_vblank,
 	.disable_vblank = i915_disable_vblank,
 	.irq_preinstall = i915_driver_irq_preinstall,
 	.irq_postinstall = i915_driver_irq_postinstall,
 	.irq_uninstall = i915_driver_irq_uninstall,
 	.irq_handler = i915_driver_irq_handler,
 	.reclaim_buffers = drm_core_reclaim_buffers,
 	.get_map_ofs = drm_core_get_map_ofs,
 	.get_reg_ofs = drm_core_get_reg_ofs,
 	.master_create = i915_master_create,
 	.master_destroy = i915_master_destroy,
 #if defined(CONFIG_DEBUG_FS)
 	.debugfs_init = i915_debugfs_init,
 	.debugfs_cleanup = i915_debugfs_cleanup,
 #endif
 	.gem_init_object = i915_gem_init_object,
 	.gem_free_object = i915_gem_free_object,
 	.gem_vm_ops = &i915_gem_vm_ops,
 	.ioctls = i915_ioctls,
 	.fops = {
 		 .owner = THIS_MODULE,
 		 .open = drm_open,
 		 .release = drm_release,
 		 .ioctl = drm_ioctl,
 		 .mmap = drm_gem_mmap,
 		 .poll = drm_poll,
 		 .fasync = drm_fasync,
 #ifdef CONFIG_COMPAT
 		 .compat_ioctl = i915_compat_ioctl,
 #endif
 	},

 	.pci_driver = {
 		 .name = DRIVER_NAME,
 		 .id_table = pciidlist,
 		 .probe = i915_pci_probe,
 		 .remove = i915_pci_remove,
 #ifdef CONFIG_PM
 		 .resume = i915_pci_resume,
 		 .suspend = i915_pci_suspend,
 #endif
 	},

 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
 	.major = DRIVER_MAJOR,
 	.minor = DRIVER_MINOR,
 	.patchlevel = DRIVER_PATCHLEVEL,
 };

 static int __init i915_init(void)
 {
 	driver.num_ioctls = i915_max_ioctl;

 	/*
 	 * If CONFIG_DRM_I915_KMS is set, default to KMS unless
 	 * explicitly disabled with the module pararmeter.
 	 *
 	 * Otherwise, just follow the parameter (defaulting to off).
 	 *
 	 * Allow optional vga_text_mode_force boot option to override
 	 * the default behavior.
 	 */
 #if defined(CONFIG_DRM_I915_KMS)
 	if (i915_modeset != 0)
 		driver.driver_features |= DRIVER_MODESET;
 #endif
 	if (i915_modeset == 1)
 		driver.driver_features |= DRIVER_MODESET;

 #ifdef CONFIG_VGA_CONSOLE
 	if (vgacon_text_force() && i915_modeset == -1)
 		driver.driver_features &= ~DRIVER_MODESET;
 #endif

 	return drm_init(&driver);
 }

 static void __exit i915_exit(void)
 {
 	drm_exit(&driver);
 }

 module_init(i915_init);
 module_exit(i915_exit);

 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL and additional rights");
	/* i915_drv.c -- i830,i845,i855,i865,i915 driver -- linux-c --
	*/
	/*
	*
	* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
	* All Rights Reserved.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the
	* "Software"), to deal in the Software without restriction, including
	* without limitation the rights to use, copy, modify, merge, publish,
	* distribute, sub license, and/or sell copies of the Software, and to
	* permit persons to whom the Software is furnished to do so, subject to
	* the following conditions:
	*
	* The above copyright notice and this permission notice (including the
	* next paragraph) shall be included in all copies or substantial portions
	* of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
	* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
	* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	*
	*/

	#include <linux/device.h>
	#include "drmP.h"
	#include "drm.h"
	#include "i915_drm.h"
	#include "i915_drv.h"

	#include "drm_pciids.h"
	#include <linux/console.h>
	#include "drm_crtc_helper.h"

	static int i915_modeset = -1;
	module_param_named(modeset, i915_modeset, int, 0400);

	unsigned int i915_fbpercrtc = 0;
	module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);

	unsigned int i915_powersave = 1;
	module_param_named(powersave, i915_powersave, int, 0400);

	static struct drm_driver driver;

	static struct pci_device_id pciidlist[] = {
	i915_PCI_IDS
	};

	#if defined(CONFIG_DRM_I915_KMS)
	MODULE_DEVICE_TABLE(pci, pciidlist);
	#endif

	static int i915_suspend(struct drm_device *dev, pm_message_t state)
	{
	struct drm_i915_private *dev_priv = dev->dev_private;

	if (!dev \|\| !dev_priv) {
	DRM_ERROR("dev: %p, dev_priv: %p\n", dev, dev_priv);
	DRM_ERROR("DRM not initialized, aborting suspend.\n");
	return -ENODEV;
	}

	if (state.event == PM_EVENT_PRETHAW)
	return 0;

	pci_save_state(dev->pdev);

	/* If KMS is active, we do the leavevt stuff here */
	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
	if (i915_gem_idle(dev))
	dev_err(&dev->pdev->dev,
	"GEM idle failed, resume may fail\n");
	drm_irq_uninstall(dev);
	}

	i915_save_state(dev);

	intel_opregion_free(dev, 1);

	if (state.event == PM_EVENT_SUSPEND) {
	/* Shut down the device */
	pci_disable_device(dev->pdev);
	pci_set_power_state(dev->pdev, PCI_D3hot);
	}

	return 0;
	}

	static int i915_resume(struct drm_device *dev)
	{
	struct drm_i915_private *dev_priv = dev->dev_private;
	int ret = 0;

	pci_set_power_state(dev->pdev, PCI_D0);
	pci_restore_state(dev->pdev);
	if (pci_enable_device(dev->pdev))
	return -1;
	pci_set_master(dev->pdev);

	i915_restore_state(dev);

	intel_opregion_init(dev, 1);

	/* KMS EnterVT equivalent */
	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
	mutex_lock(&dev->struct_mutex);
	dev_priv->mm.suspended = 0;

	ret = i915_gem_init_ringbuffer(dev);
	if (ret != 0)
	ret = -1;
	mutex_unlock(&dev->struct_mutex);

	drm_irq_install(dev);
	}
	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
	/* Resume the modeset for every activated CRTC */
	drm_helper_resume_force_mode(dev);
	}

	return ret;
	}

	static int __devinit
	i915_pci_probe(struct pci_dev pdev, const struct pci_device_id ent)
	{
	return drm_get_dev(pdev, ent, &driver);
	}

	static void
	i915_pci_remove(struct pci_dev *pdev)
	{
	struct drm_device *dev = pci_get_drvdata(pdev);

	drm_put_dev(dev);
	}

	static int
	i915_pci_suspend(struct pci_dev *pdev, pm_message_t state)
	{
	struct drm_device *dev = pci_get_drvdata(pdev);

	return i915_suspend(dev, state);
	}

	static int
	i915_pci_resume(struct pci_dev *pdev)
	{
	struct drm_device *dev = pci_get_drvdata(pdev);

	return i915_resume(dev);
	}

	static struct vm_operations_struct i915_gem_vm_ops = {
	.fault = i915_gem_fault,
	.open = drm_gem_vm_open,
	.close = drm_gem_vm_close,
	};

	static struct drm_driver driver = {
	/* don't use mtrr's here, the Xserver or user space app should
	* deal with them for intel hardware.
	*/
	.driver_features =
	DRIVER_USE_AGP \| DRIVER_REQUIRE_AGP \| /* DRIVER_USE_MTRR \|*/
	DRIVER_HAVE_IRQ \| DRIVER_IRQ_SHARED \| DRIVER_GEM,
	.load = i915_driver_load,
	.unload = i915_driver_unload,
	.open = i915_driver_open,
	.lastclose = i915_driver_lastclose,
	.preclose = i915_driver_preclose,
	.postclose = i915_driver_postclose,
	.suspend = i915_suspend,
	.resume = i915_resume,
	.device_is_agp = i915_driver_device_is_agp,
	.enable_vblank = i915_enable_vblank,
	.disable_vblank = i915_disable_vblank,
	.irq_preinstall = i915_driver_irq_preinstall,
	.irq_postinstall = i915_driver_irq_postinstall,
	.irq_uninstall = i915_driver_irq_uninstall,
	.irq_handler = i915_driver_irq_handler,
	.reclaim_buffers = drm_core_reclaim_buffers,
	.get_map_ofs = drm_core_get_map_ofs,
	.get_reg_ofs = drm_core_get_reg_ofs,
	.master_create = i915_master_create,
	.master_destroy = i915_master_destroy,
	#if defined(CONFIG_DEBUG_FS)
	.debugfs_init = i915_debugfs_init,
	.debugfs_cleanup = i915_debugfs_cleanup,
	#endif
	.gem_init_object = i915_gem_init_object,
	.gem_free_object = i915_gem_free_object,
	.gem_vm_ops = &i915_gem_vm_ops,
	.ioctls = i915_ioctls,
	.fops = {
	.owner = THIS_MODULE,
	.open = drm_open,
	.release = drm_release,
	.ioctl = drm_ioctl,
	.mmap = drm_gem_mmap,
	.poll = drm_poll,
	.fasync = drm_fasync,
	#ifdef CONFIG_COMPAT
	.compat_ioctl = i915_compat_ioctl,
	#endif
	},

	.pci_driver = {
	.name = DRIVER_NAME,
	.id_table = pciidlist,
	.probe = i915_pci_probe,
	.remove = i915_pci_remove,
	#ifdef CONFIG_PM
	.resume = i915_pci_resume,
	.suspend = i915_pci_suspend,
	#endif
	},

	.name = DRIVER_NAME,
	.desc = DRIVER_DESC,
	.date = DRIVER_DATE,
	.major = DRIVER_MAJOR,
	.minor = DRIVER_MINOR,
	.patchlevel = DRIVER_PATCHLEVEL,
	};

	static int __init i915_init(void)
	{
	driver.num_ioctls = i915_max_ioctl;

	/*
	* If CONFIG_DRM_I915_KMS is set, default to KMS unless
	* explicitly disabled with the module pararmeter.
	*
	* Otherwise, just follow the parameter (defaulting to off).
	*
	* Allow optional vga_text_mode_force boot option to override
	* the default behavior.
	*/
	#if defined(CONFIG_DRM_I915_KMS)
	if (i915_modeset != 0)
	driver.driver_features \|= DRIVER_MODESET;
	#endif
	if (i915_modeset == 1)
	driver.driver_features \|= DRIVER_MODESET;

	#ifdef CONFIG_VGA_CONSOLE
	if (vgacon_text_force() && i915_modeset == -1)
	driver.driver_features &= ~DRIVER_MODESET;
	#endif

	return drm_init(&driver);
	}

	static void __exit i915_exit(void)
	{
	drm_exit(&driver);
	}

	module_init(i915_init);
	module_exit(i915_exit);

	MODULE_AUTHOR(DRIVER_AUTHOR);
	MODULE_DESCRIPTION(DRIVER_DESC);
	MODULE_LICENSE("GPL and additional rights");