[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / i915 / i915_drv.c

/* 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 <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);

unsigned int i915_lvds_downclock = 0;
module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);

static struct drm_driver driver;

#define INTEL_VGA_DEVICE(id, info) {		\
	.class = PCI_CLASS_DISPLAY_VGA << 8,	\
	.class_mask = 0xffff00,			\
	.vendor = 0x8086,			\
	.device = id,				\
	.subvendor = PCI_ANY_ID,		\
	.subdevice = PCI_ANY_ID,		\
	.driver_data = (unsigned long) info }

const static struct intel_device_info intel_i830_info = {
	.is_i8xx = 1, .is_mobile = 1, .cursor_needs_physical = 1,
};

const static struct intel_device_info intel_845g_info = {
	.is_i8xx = 1,
};

const static struct intel_device_info intel_i85x_info = {
	.is_i8xx = 1, .is_mobile = 1, .cursor_needs_physical = 1,
};

const static struct intel_device_info intel_i865g_info = {
	.is_i8xx = 1,
};

const static struct intel_device_info intel_i915g_info = {
	.is_i915g = 1, .is_i9xx = 1, .cursor_needs_physical = 1,
};
const static struct intel_device_info intel_i915gm_info = {
	.is_i9xx = 1,  .is_mobile = 1, .has_fbc = 1,
	.cursor_needs_physical = 1,
};
const static struct intel_device_info intel_i945g_info = {
	.is_i9xx = 1, .has_hotplug = 1, .cursor_needs_physical = 1,
};
const static struct intel_device_info intel_i945gm_info = {
	.is_i945gm = 1, .is_i9xx = 1, .is_mobile = 1, .has_fbc = 1,
	.has_hotplug = 1, .cursor_needs_physical = 1,
};

const static struct intel_device_info intel_i965g_info = {
	.is_i965g = 1, .is_i9xx = 1, .has_hotplug = 1,
};

const static struct intel_device_info intel_i965gm_info = {
	.is_i965g = 1, .is_mobile = 1, .is_i965gm = 1, .is_i9xx = 1,
	.is_mobile = 1, .has_fbc = 1, .has_rc6 = 1,
	.has_hotplug = 1,
};

const static struct intel_device_info intel_g33_info = {
	.is_g33 = 1, .is_i9xx = 1, .need_gfx_hws = 1,
	.has_hotplug = 1,
};

const static struct intel_device_info intel_g45_info = {
	.is_i965g = 1, .is_g4x = 1, .is_i9xx = 1, .need_gfx_hws = 1,
	.has_pipe_cxsr = 1,
	.has_hotplug = 1,
};

const static struct intel_device_info intel_gm45_info = {
	.is_i965g = 1, .is_mobile = 1, .is_g4x = 1, .is_i9xx = 1,
	.is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1,
	.has_pipe_cxsr = 1,
	.has_hotplug = 1,
};

const static struct intel_device_info intel_pineview_info = {
	.is_g33 = 1, .is_pineview = 1, .is_mobile = 1, .is_i9xx = 1,
	.need_gfx_hws = 1,
	.has_hotplug = 1,
};

const static struct intel_device_info intel_ironlake_d_info = {
	.is_ironlake = 1, .is_i965g = 1, .is_i9xx = 1, .need_gfx_hws = 1,
	.has_pipe_cxsr = 1,
	.has_hotplug = 1,
};

const static struct intel_device_info intel_ironlake_m_info = {
	.is_ironlake = 1, .is_mobile = 1, .is_i965g = 1, .is_i9xx = 1,
	.need_gfx_hws = 1, .has_rc6 = 1,
	.has_hotplug = 1,
};

const static struct pci_device_id pciidlist[] = {
	INTEL_VGA_DEVICE(0x3577, &intel_i830_info),
	INTEL_VGA_DEVICE(0x2562, &intel_845g_info),
	INTEL_VGA_DEVICE(0x3582, &intel_i85x_info),
	INTEL_VGA_DEVICE(0x35e8, &intel_i85x_info),
	INTEL_VGA_DEVICE(0x2572, &intel_i865g_info),
	INTEL_VGA_DEVICE(0x2582, &intel_i915g_info),
	INTEL_VGA_DEVICE(0x258a, &intel_i915g_info),
	INTEL_VGA_DEVICE(0x2592, &intel_i915gm_info),
	INTEL_VGA_DEVICE(0x2772, &intel_i945g_info),
	INTEL_VGA_DEVICE(0x27a2, &intel_i945gm_info),
	INTEL_VGA_DEVICE(0x27ae, &intel_i945gm_info),
	INTEL_VGA_DEVICE(0x2972, &intel_i965g_info),
	INTEL_VGA_DEVICE(0x2982, &intel_i965g_info),
	INTEL_VGA_DEVICE(0x2992, &intel_i965g_info),
	INTEL_VGA_DEVICE(0x29a2, &intel_i965g_info),
	INTEL_VGA_DEVICE(0x29b2, &intel_g33_info),
	INTEL_VGA_DEVICE(0x29c2, &intel_g33_info),
	INTEL_VGA_DEVICE(0x29d2, &intel_g33_info),
	INTEL_VGA_DEVICE(0x2a02, &intel_i965gm_info),
	INTEL_VGA_DEVICE(0x2a12, &intel_i965gm_info),
	INTEL_VGA_DEVICE(0x2a42, &intel_gm45_info),
	INTEL_VGA_DEVICE(0x2e02, &intel_g45_info),
	INTEL_VGA_DEVICE(0x2e12, &intel_g45_info),
	INTEL_VGA_DEVICE(0x2e22, &intel_g45_info),
	INTEL_VGA_DEVICE(0x2e32, &intel_g45_info),
	INTEL_VGA_DEVICE(0x2e42, &intel_g45_info),
	INTEL_VGA_DEVICE(0xa001, &intel_pineview_info),
	INTEL_VGA_DEVICE(0xa011, &intel_pineview_info),
	INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info),
	INTEL_VGA_DEVICE(0x0046, &intel_ironlake_m_info),
	{0, 0, 0}
};

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

static int i915_drm_freeze(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = dev->dev_private;

	pci_save_state(dev->pdev);

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

	i915_save_state(dev);

	intel_opregion_free(dev, 1);

	/* Modeset on resume, not lid events */
	dev_priv->modeset_on_lid = 0;

	return 0;
}

int i915_suspend(struct drm_device *dev, pm_message_t state)
{
	int error;

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

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

	error = i915_drm_freeze(dev);
	if (error)
		return error;

	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_drm_thaw(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = dev->dev_private;
	int error = 0;

	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;

		error = i915_gem_init_ringbuffer(dev);
		mutex_unlock(&dev->struct_mutex);

		drm_irq_install(dev);

		/* Resume the modeset for every activated CRTC */
		drm_helper_resume_force_mode(dev);
	}

	dev_priv->modeset_on_lid = 0;

	return error;
}

int i915_resume(struct drm_device *dev)
{
	if (pci_enable_device(dev->pdev))
		return -EIO;

	pci_set_master(dev->pdev);

	return i915_drm_thaw(dev);
}

/**
 * i965_reset - reset chip after a hang
 * @dev: drm device to reset
 * @flags: reset domains
 *
 * Reset the chip.  Useful if a hang is detected. Returns zero on successful
 * reset or otherwise an error code.
 *
 * Procedure is fairly simple:
 *   - reset the chip using the reset reg
 *   - re-init context state
 *   - re-init hardware status page
 *   - re-init ring buffer
 *   - re-init interrupt state
 *   - re-init display
 */
int i965_reset(struct drm_device *dev, u8 flags)
{
	drm_i915_private_t *dev_priv = dev->dev_private;
	unsigned long timeout;
	u8 gdrst;
	/*
	 * We really should only reset the display subsystem if we actually
	 * need to
	 */
	bool need_display = true;

	mutex_lock(&dev->struct_mutex);

	/*
	 * Clear request list
	 */
	i915_gem_retire_requests(dev);

	if (need_display)
		i915_save_display(dev);

	if (IS_I965G(dev) || IS_G4X(dev)) {
		/*
		 * Set the domains we want to reset, then the reset bit (bit 0).
		 * Clear the reset bit after a while and wait for hardware status
		 * bit (bit 1) to be set
		 */
		pci_read_config_byte(dev->pdev, GDRST, &gdrst);
		pci_write_config_byte(dev->pdev, GDRST, gdrst | flags | ((flags == GDRST_FULL) ? 0x1 : 0x0));
		udelay(50);
		pci_write_config_byte(dev->pdev, GDRST, gdrst & 0xfe);

		/* ...we don't want to loop forever though, 500ms should be plenty */
	       timeout = jiffies + msecs_to_jiffies(500);
		do {
			udelay(100);
			pci_read_config_byte(dev->pdev, GDRST, &gdrst);
		} while ((gdrst & 0x1) && time_after(timeout, jiffies));

		if (gdrst & 0x1) {
			WARN(true, "i915: Failed to reset chip\n");
			mutex_unlock(&dev->struct_mutex);
			return -EIO;
		}
	} else {
		DRM_ERROR("Error occurred. Don't know how to reset this chip.\n");
		return -ENODEV;
	}

	/* Ok, now get things going again... */

	/*
	 * Everything depends on having the GTT running, so we need to start
	 * there.  Fortunately we don't need to do this unless we reset the
	 * chip at a PCI level.
	 *
	 * Next we need to restore the context, but we don't use those
	 * yet either...
	 *
	 * Ring buffer needs to be re-initialized in the KMS case, or if X
	 * was running at the time of the reset (i.e. we weren't VT
	 * switched away).
	 */
	if (drm_core_check_feature(dev, DRIVER_MODESET) ||
	    !dev_priv->mm.suspended) {
		drm_i915_ring_buffer_t *ring = &dev_priv->ring;
		struct drm_gem_object *obj = ring->ring_obj;
		struct drm_i915_gem_object *obj_priv = obj->driver_private;
		dev_priv->mm.suspended = 0;

		/* Stop the ring if it's running. */
		I915_WRITE(PRB0_CTL, 0);
		I915_WRITE(PRB0_TAIL, 0);
		I915_WRITE(PRB0_HEAD, 0);

		/* Initialize the ring. */
		I915_WRITE(PRB0_START, obj_priv->gtt_offset);
		I915_WRITE(PRB0_CTL,
			   ((obj->size - 4096) & RING_NR_PAGES) |
			   RING_NO_REPORT |
			   RING_VALID);
		if (!drm_core_check_feature(dev, DRIVER_MODESET))
			i915_kernel_lost_context(dev);
		else {
			ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
			ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR;
			ring->space = ring->head - (ring->tail + 8);
			if (ring->space < 0)
				ring->space += ring->Size;
		}

		mutex_unlock(&dev->struct_mutex);
		drm_irq_uninstall(dev);
		drm_irq_install(dev);
		mutex_lock(&dev->struct_mutex);
	}

	/*
	 * Display needs restore too...
	 */
	if (need_display)
		i915_restore_display(dev);

	mutex_unlock(&dev->struct_mutex);
	return 0;
}


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_pm_suspend(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	int error;

	if (!drm_dev || !drm_dev->dev_private) {
		dev_err(dev, "DRM not initialized, aborting suspend.\n");
		return -ENODEV;
	}

	error = i915_drm_freeze(drm_dev);
	if (error)
		return error;

	pci_disable_device(pdev);
	pci_set_power_state(pdev, PCI_D3hot);

	return 0;
}

static int i915_pm_resume(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);

	return i915_resume(drm_dev);
}

static int i915_pm_freeze(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);

	if (!drm_dev || !drm_dev->dev_private) {
		dev_err(dev, "DRM not initialized, aborting suspend.\n");
		return -ENODEV;
	}

	return i915_drm_freeze(drm_dev);
}

static int i915_pm_thaw(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);

	return i915_drm_thaw(drm_dev);
}

static int i915_pm_poweroff(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);

	return i915_drm_freeze(drm_dev);
}

const struct dev_pm_ops i915_pm_ops = {
     .suspend = i915_pm_suspend,
     .resume = i915_pm_resume,
     .freeze = i915_pm_freeze,
     .thaw = i915_pm_thaw,
     .poweroff = i915_pm_poweroff,
     .restore = i915_pm_resume,
};

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,

	/* Used in place of i915_pm_ops for non-DRIVER_MODESET */
	.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,
		 .unlocked_ioctl = drm_ioctl,
		 .mmap = drm_gem_mmap,
		 .poll = drm_poll,
		 .fasync = drm_fasync,
		 .read = drm_read,
#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,
		 .driver.pm = &i915_pm_ops,
	},

	.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;

	i915_gem_shrinker_init();

	/*
	 * 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)
{
	i915_gem_shrinker_exit();
	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");
Commit	Line	Data
1da177e4 LT	1	/* i915_drv.c -- i830,i845,i855,i865,i915 driver -- linux-c --
1da177e4 LT	2	*/
0d6aa60b	3	/*
bc54fd1a	4	*
1da177e4 LT	5	* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
1da177e4 LT	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
79e53945	36	#include <linux/console.h>
354ff967	37	#include "drm_crtc_helper.h"
79e53945	38
d6073d77	39	static int i915_modeset = -1;
79e53945 JB	40	module_param_named(modeset, i915_modeset, int, 0400);
	41
	42	unsigned int i915_fbpercrtc = 0;
	43	module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
1da177e4	44
652c393a JB	45	unsigned int i915_powersave = 1;
	46	module_param_named(powersave, i915_powersave, int, 0400);
	47
33814341 JB	48	unsigned int i915_lvds_downclock = 0;
	49	module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
	50
112b715e KH	51	static struct drm_driver driver;
112b715e KH	52
cfdf1fa2	53	#define INTEL_VGA_DEVICE(id, info) { \
49ae35f2 KH	54	.class = PCI_CLASS_DISPLAY_VGA << 8, \
	55	.class_mask = 0xffff00, \
	56	.vendor = 0x8086, \
	57	.device = id, \
	58	.subvendor = PCI_ANY_ID, \
	59	.subdevice = PCI_ANY_ID, \
cfdf1fa2 KH	60	.driver_data = (unsigned long) info }
	61
	62	const static struct intel_device_info intel_i830_info = {
b295d1b6	63	.is_i8xx = 1, .is_mobile = 1, .cursor_needs_physical = 1,
cfdf1fa2 KH	64	};
	65
	66	const static struct intel_device_info intel_845g_info = {
	67	.is_i8xx = 1,
	68	};
	69
	70	const static struct intel_device_info intel_i85x_info = {
b295d1b6	71	.is_i8xx = 1, .is_mobile = 1, .cursor_needs_physical = 1,
cfdf1fa2 KH	72	};
	73
	74	const static struct intel_device_info intel_i865g_info = {
	75	.is_i8xx = 1,
	76	};
	77
	78	const static struct intel_device_info intel_i915g_info = {
b295d1b6	79	.is_i915g = 1, .is_i9xx = 1, .cursor_needs_physical = 1,
cfdf1fa2 KH	80	};
	81	const static struct intel_device_info intel_i915gm_info = {
	82	.is_i9xx = 1, .is_mobile = 1, .has_fbc = 1,
b295d1b6	83	.cursor_needs_physical = 1,
cfdf1fa2 KH	84	};
cfdf1fa2 KH	85	const static struct intel_device_info intel_i945g_info = {
b295d1b6	86	.is_i9xx = 1, .has_hotplug = 1, .cursor_needs_physical = 1,
cfdf1fa2 KH	87	};
	88	const static struct intel_device_info intel_i945gm_info = {
	89	.is_i945gm = 1, .is_i9xx = 1, .is_mobile = 1, .has_fbc = 1,
b295d1b6	90	.has_hotplug = 1, .cursor_needs_physical = 1,
cfdf1fa2 KH	91	};
	92
	93	const static struct intel_device_info intel_i965g_info = {
	94	.is_i965g = 1, .is_i9xx = 1, .has_hotplug = 1,
	95	};
	96
	97	const static struct intel_device_info intel_i965gm_info = {
	98	.is_i965g = 1, .is_mobile = 1, .is_i965gm = 1, .is_i9xx = 1,
	99	.is_mobile = 1, .has_fbc = 1, .has_rc6 = 1,
	100	.has_hotplug = 1,
	101	};
	102
	103	const static struct intel_device_info intel_g33_info = {
	104	.is_g33 = 1, .is_i9xx = 1, .need_gfx_hws = 1,
	105	.has_hotplug = 1,
	106	};
	107
	108	const static struct intel_device_info intel_g45_info = {
	109	.is_i965g = 1, .is_g4x = 1, .is_i9xx = 1, .need_gfx_hws = 1,
	110	.has_pipe_cxsr = 1,
	111	.has_hotplug = 1,
	112	};
	113
	114	const static struct intel_device_info intel_gm45_info = {
	115	.is_i965g = 1, .is_mobile = 1, .is_g4x = 1, .is_i9xx = 1,
	116	.is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1,
	117	.has_pipe_cxsr = 1,
	118	.has_hotplug = 1,
	119	};
	120
	121	const static struct intel_device_info intel_pineview_info = {
	122	.is_g33 = 1, .is_pineview = 1, .is_mobile = 1, .is_i9xx = 1,
8a6c77d6	123	.need_gfx_hws = 1,
cfdf1fa2 KH	124	.has_hotplug = 1,
	125	};
	126
	127	const static struct intel_device_info intel_ironlake_d_info = {
	128	.is_ironlake = 1, .is_i965g = 1, .is_i9xx = 1, .need_gfx_hws = 1,
	129	.has_pipe_cxsr = 1,
	130	.has_hotplug = 1,
	131	};
	132
	133	const static struct intel_device_info intel_ironlake_m_info = {
	134	.is_ironlake = 1, .is_mobile = 1, .is_i965g = 1, .is_i9xx = 1,
	135	.need_gfx_hws = 1, .has_rc6 = 1,
	136	.has_hotplug = 1,
	137	};
	138
	139	const static struct pci_device_id pciidlist[] = {
	140	INTEL_VGA_DEVICE(0x3577, &intel_i830_info),
	141	INTEL_VGA_DEVICE(0x2562, &intel_845g_info),
	142	INTEL_VGA_DEVICE(0x3582, &intel_i85x_info),
	143	INTEL_VGA_DEVICE(0x35e8, &intel_i85x_info),
	144	INTEL_VGA_DEVICE(0x2572, &intel_i865g_info),
	145	INTEL_VGA_DEVICE(0x2582, &intel_i915g_info),
	146	INTEL_VGA_DEVICE(0x258a, &intel_i915g_info),
	147	INTEL_VGA_DEVICE(0x2592, &intel_i915gm_info),
	148	INTEL_VGA_DEVICE(0x2772, &intel_i945g_info),
	149	INTEL_VGA_DEVICE(0x27a2, &intel_i945gm_info),
	150	INTEL_VGA_DEVICE(0x27ae, &intel_i945gm_info),
	151	INTEL_VGA_DEVICE(0x2972, &intel_i965g_info),
	152	INTEL_VGA_DEVICE(0x2982, &intel_i965g_info),
	153	INTEL_VGA_DEVICE(0x2992, &intel_i965g_info),
	154	INTEL_VGA_DEVICE(0x29a2, &intel_i965g_info),
	155	INTEL_VGA_DEVICE(0x29b2, &intel_g33_info),
	156	INTEL_VGA_DEVICE(0x29c2, &intel_g33_info),
	157	INTEL_VGA_DEVICE(0x29d2, &intel_g33_info),
	158	INTEL_VGA_DEVICE(0x2a02, &intel_i965gm_info),
	159	INTEL_VGA_DEVICE(0x2a12, &intel_i965gm_info),
	160	INTEL_VGA_DEVICE(0x2a42, &intel_gm45_info),
	161	INTEL_VGA_DEVICE(0x2e02, &intel_g45_info),
	162	INTEL_VGA_DEVICE(0x2e12, &intel_g45_info),
	163	INTEL_VGA_DEVICE(0x2e22, &intel_g45_info),
	164	INTEL_VGA_DEVICE(0x2e32, &intel_g45_info),
	165	INTEL_VGA_DEVICE(0x2e42, &intel_g45_info),
	166	INTEL_VGA_DEVICE(0xa001, &intel_pineview_info),
	167	INTEL_VGA_DEVICE(0xa011, &intel_pineview_info),
	168	INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info),
	169	INTEL_VGA_DEVICE(0x0046, &intel_ironlake_m_info),
49ae35f2	170	{0, 0, 0}
1da177e4 LT	171	};
1da177e4 LT	172
79e53945 JB	173	#if defined(CONFIG_DRM_I915_KMS)
	174	MODULE_DEVICE_TABLE(pci, pciidlist);
	175	#endif
	176
84b79f8d	177	static int i915_drm_freeze(struct drm_device *dev)
ba8bbcf6	178	{
61caf87c RW	179	struct drm_i915_private *dev_priv = dev->dev_private;
61caf87c RW	180
ba8bbcf6	181	pci_save_state(dev->pdev);
ba8bbcf6	182
5669fcac	183	/* If KMS is active, we do the leavevt stuff here */
226485e9	184	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
84b79f8d RW	185	int error = i915_gem_idle(dev);
84b79f8d RW	186	if (error) {
226485e9	187	dev_err(&dev->pdev->dev,
84b79f8d RW	188	"GEM idle failed, resume might fail\n");
	189	return error;
	190	}
226485e9	191	drm_irq_uninstall(dev);
5669fcac JB	192	}
5669fcac JB	193
9e06dd39 JB	194	i915_save_state(dev);
9e06dd39 JB	195
3b1c1c11	196	intel_opregion_free(dev, 1);
8ee1c3db	197
84b79f8d RW	198	/* Modeset on resume, not lid events */
84b79f8d RW	199	dev_priv->modeset_on_lid = 0;
61caf87c RW	200
61caf87c RW	201	return 0;
84b79f8d RW	202	}
84b79f8d RW	203
6a9ee8af	204	int i915_suspend(struct drm_device *dev, pm_message_t state)
84b79f8d RW	205	{
	206	int error;
	207
	208	if (!dev \|\| !dev->dev_private) {
	209	DRM_ERROR("dev: %p\n", dev);
	210	DRM_ERROR("DRM not initialized, aborting suspend.\n");
	211	return -ENODEV;
	212	}
	213
	214	if (state.event == PM_EVENT_PRETHAW)
	215	return 0;
	216
	217	error = i915_drm_freeze(dev);
	218	if (error)
	219	return error;
	220
b932ccb5 DA	221	if (state.event == PM_EVENT_SUSPEND) {
	222	/* Shut down the device */
	223	pci_disable_device(dev->pdev);
	224	pci_set_power_state(dev->pdev, PCI_D3hot);
	225	}
ba8bbcf6 JB	226
	227	return 0;
	228	}
	229
84b79f8d	230	static int i915_drm_thaw(struct drm_device *dev)
ba8bbcf6	231	{
5669fcac	232	struct drm_i915_private *dev_priv = dev->dev_private;
84b79f8d	233	int error = 0;
8ee1c3db	234
61caf87c RW	235	i915_restore_state(dev);
	236
	237	intel_opregion_init(dev, 1);
	238
5669fcac JB	239	/* KMS EnterVT equivalent */
	240	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
	241	mutex_lock(&dev->struct_mutex);
	242	dev_priv->mm.suspended = 0;
	243
84b79f8d	244	error = i915_gem_init_ringbuffer(dev);
5669fcac	245	mutex_unlock(&dev->struct_mutex);
226485e9 JB	246
226485e9 JB	247	drm_irq_install(dev);
84b79f8d	248
354ff967 ZY	249	/* Resume the modeset for every activated CRTC */
	250	drm_helper_resume_force_mode(dev);
	251	}
5669fcac	252
c9354c85	253	dev_priv->modeset_on_lid = 0;
06891e27	254
84b79f8d RW	255	return error;
	256	}
	257
6a9ee8af	258	int i915_resume(struct drm_device *dev)
84b79f8d RW	259	{
	260	if (pci_enable_device(dev->pdev))
	261	return -EIO;
	262
	263	pci_set_master(dev->pdev);
	264
84b79f8d	265	return i915_drm_thaw(dev);
ba8bbcf6 JB	266	}
ba8bbcf6 JB	267
11ed50ec BG	268	/**
	269	* i965_reset - reset chip after a hang
	270	* @dev: drm device to reset
	271	* @flags: reset domains
	272	*
	273	* Reset the chip. Useful if a hang is detected. Returns zero on successful
	274	* reset or otherwise an error code.
	275	*
	276	* Procedure is fairly simple:
	277	* - reset the chip using the reset reg
	278	* - re-init context state
	279	* - re-init hardware status page
	280	* - re-init ring buffer
	281	* - re-init interrupt state
	282	* - re-init display
	283	*/
	284	int i965_reset(struct drm_device *dev, u8 flags)
	285	{
	286	drm_i915_private_t *dev_priv = dev->dev_private;
	287	unsigned long timeout;
	288	u8 gdrst;
	289	/*
	290	* We really should only reset the display subsystem if we actually
	291	* need to
	292	*/
	293	bool need_display = true;
	294
	295	mutex_lock(&dev->struct_mutex);
	296
	297	/*
	298	* Clear request list
	299	*/
	300	i915_gem_retire_requests(dev);
	301
	302	if (need_display)
	303	i915_save_display(dev);
	304
	305	if (IS_I965G(dev) \|\| IS_G4X(dev)) {
	306	/*
	307	* Set the domains we want to reset, then the reset bit (bit 0).
	308	* Clear the reset bit after a while and wait for hardware status
	309	* bit (bit 1) to be set
	310	*/
	311	pci_read_config_byte(dev->pdev, GDRST, &gdrst);
	312	pci_write_config_byte(dev->pdev, GDRST, gdrst \| flags \| ((flags == GDRST_FULL) ? 0x1 : 0x0));
	313	udelay(50);
	314	pci_write_config_byte(dev->pdev, GDRST, gdrst & 0xfe);
	315
	316	/* ...we don't want to loop forever though, 500ms should be plenty */
	317	timeout = jiffies + msecs_to_jiffies(500);
	318	do {
	319	udelay(100);
	320	pci_read_config_byte(dev->pdev, GDRST, &gdrst);
	321	} while ((gdrst & 0x1) && time_after(timeout, jiffies));
	322
	323	if (gdrst & 0x1) {
	324	WARN(true, "i915: Failed to reset chip\n");
	325	mutex_unlock(&dev->struct_mutex);
	326	return -EIO;
	327	}
	328	} else {
	329	DRM_ERROR("Error occurred. Don't know how to reset this chip.\n");
	330	return -ENODEV;
	331	}
332
333	/* Ok, now get things going again... */
334
335	/*
336	* Everything depends on having the GTT running, so we need to start
337	* there. Fortunately we don't need to do this unless we reset the
338	* chip at a PCI level.
339	*
340	* Next we need to restore the context, but we don't use those
341	* yet either...
342	*
343	* Ring buffer needs to be re-initialized in the KMS case, or if X
344	* was running at the time of the reset (i.e. we weren't VT
345	* switched away).
346	*/
347	if (drm_core_check_feature(dev, DRIVER_MODESET) \|\|
348	!dev_priv->mm.suspended) {
349	drm_i915_ring_buffer_t *ring = &dev_priv->ring;
350	struct drm_gem_object *obj = ring->ring_obj;
351	struct drm_i915_gem_object *obj_priv = obj->driver_private;
352	dev_priv->mm.suspended = 0;
353
354	/* Stop the ring if it's running. */
355	I915_WRITE(PRB0_CTL, 0);
356	I915_WRITE(PRB0_TAIL, 0);
357	I915_WRITE(PRB0_HEAD, 0);
358
359	/* Initialize the ring. */
360	I915_WRITE(PRB0_START, obj_priv->gtt_offset);
361	I915_WRITE(PRB0_CTL,
362	((obj->size - 4096) & RING_NR_PAGES) \|
363	RING_NO_REPORT \|
364	RING_VALID);
365	if (!drm_core_check_feature(dev, DRIVER_MODESET))
366	i915_kernel_lost_context(dev);
367	else {
368	ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
369	ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR;
370	ring->space = ring->head - (ring->tail + 8);
371	if (ring->space < 0)
372	ring->space += ring->Size;
373	}
374
375	mutex_unlock(&dev->struct_mutex);
376	drm_irq_uninstall(dev);
377	drm_irq_install(dev);
378	mutex_lock(&dev->struct_mutex);
379	}
380
381	/*
382	* Display needs restore too...
383	*/
384	if (need_display)
385	i915_restore_display(dev);
386
387	mutex_unlock(&dev->struct_mutex);
388	return 0;
389	}
390
391
112b715e KH	392	static int __devinit
	393	i915_pci_probe(struct pci_dev pdev, const struct pci_device_id ent)
	394	{
	395	return drm_get_dev(pdev, ent, &driver);
	396	}
	397
	398	static void
	399	i915_pci_remove(struct pci_dev *pdev)
	400	{
	401	struct drm_device *dev = pci_get_drvdata(pdev);
	402
	403	drm_put_dev(dev);
	404	}
	405
84b79f8d	406	static int i915_pm_suspend(struct device *dev)
112b715e	407	{
84b79f8d RW	408	struct pci_dev *pdev = to_pci_dev(dev);
	409	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	410	int error;
112b715e	411
84b79f8d RW	412	if (!drm_dev \|\| !drm_dev->dev_private) {
	413	dev_err(dev, "DRM not initialized, aborting suspend.\n");
	414	return -ENODEV;
	415	}
112b715e	416
84b79f8d RW	417	error = i915_drm_freeze(drm_dev);
	418	if (error)
	419	return error;
112b715e	420
84b79f8d RW	421	pci_disable_device(pdev);
84b79f8d RW	422	pci_set_power_state(pdev, PCI_D3hot);
cbda12d7	423
84b79f8d	424	return 0;
cbda12d7 ZW	425	}
cbda12d7 ZW	426
84b79f8d	427	static int i915_pm_resume(struct device *dev)
cbda12d7	428	{
84b79f8d RW	429	struct pci_dev *pdev = to_pci_dev(dev);
	430	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	431
	432	return i915_resume(drm_dev);
cbda12d7 ZW	433	}
cbda12d7 ZW	434
84b79f8d	435	static int i915_pm_freeze(struct device *dev)
cbda12d7	436	{
84b79f8d RW	437	struct pci_dev *pdev = to_pci_dev(dev);
	438	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	439
	440	if (!drm_dev \|\| !drm_dev->dev_private) {
	441	dev_err(dev, "DRM not initialized, aborting suspend.\n");
	442	return -ENODEV;
	443	}
	444
	445	return i915_drm_freeze(drm_dev);
cbda12d7 ZW	446	}
cbda12d7 ZW	447
84b79f8d	448	static int i915_pm_thaw(struct device *dev)
cbda12d7	449	{
84b79f8d RW	450	struct pci_dev *pdev = to_pci_dev(dev);
	451	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	452
	453	return i915_drm_thaw(drm_dev);
cbda12d7 ZW	454	}
cbda12d7 ZW	455
84b79f8d	456	static int i915_pm_poweroff(struct device *dev)
cbda12d7	457	{
84b79f8d RW	458	struct pci_dev *pdev = to_pci_dev(dev);
84b79f8d RW	459	struct drm_device *drm_dev = pci_get_drvdata(pdev);
84b79f8d	460
61caf87c	461	return i915_drm_freeze(drm_dev);
cbda12d7 ZW	462	}
	463
	464	const struct dev_pm_ops i915_pm_ops = {
	465	.suspend = i915_pm_suspend,
	466	.resume = i915_pm_resume,
	467	.freeze = i915_pm_freeze,
	468	.thaw = i915_pm_thaw,
	469	.poweroff = i915_pm_poweroff,
84b79f8d	470	.restore = i915_pm_resume,
cbda12d7 ZW	471	};
cbda12d7 ZW	472
de151cf6 JB	473	static struct vm_operations_struct i915_gem_vm_ops = {
de151cf6 JB	474	.fault = i915_gem_fault,
ab00b3e5 JB	475	.open = drm_gem_vm_open,
ab00b3e5 JB	476	.close = drm_gem_vm_close,
de151cf6 JB	477	};
de151cf6 JB	478
1da177e4	479	static struct drm_driver driver = {
792d2b9a DA	480	/* don't use mtrr's here, the Xserver or user space app should
	481	* deal with them for intel hardware.
	482	*/
673a394b EA	483	.driver_features =
	484	DRIVER_USE_AGP \| DRIVER_REQUIRE_AGP \| /* DRIVER_USE_MTRR \|*/
	485	DRIVER_HAVE_IRQ \| DRIVER_IRQ_SHARED \| DRIVER_GEM,
22eae947	486	.load = i915_driver_load,
ba8bbcf6	487	.unload = i915_driver_unload,
673a394b	488	.open = i915_driver_open,
22eae947 DA	489	.lastclose = i915_driver_lastclose,
22eae947 DA	490	.preclose = i915_driver_preclose,
673a394b	491	.postclose = i915_driver_postclose,
d8e29209 RW	492
	493	/* Used in place of i915_pm_ops for non-DRIVER_MODESET */
	494	.suspend = i915_suspend,
	495	.resume = i915_resume,
	496
cda17380	497	.device_is_agp = i915_driver_device_is_agp,
0a3e67a4 JB	498	.enable_vblank = i915_enable_vblank,
0a3e67a4 JB	499	.disable_vblank = i915_disable_vblank,
1da177e4 LT	500	.irq_preinstall = i915_driver_irq_preinstall,
	501	.irq_postinstall = i915_driver_irq_postinstall,
	502	.irq_uninstall = i915_driver_irq_uninstall,
	503	.irq_handler = i915_driver_irq_handler,
	504	.reclaim_buffers = drm_core_reclaim_buffers,
	505	.get_map_ofs = drm_core_get_map_ofs,
	506	.get_reg_ofs = drm_core_get_reg_ofs,
7c1c2871 DA	507	.master_create = i915_master_create,
7c1c2871 DA	508	.master_destroy = i915_master_destroy,
955b12de	509	#if defined(CONFIG_DEBUG_FS)
27c202ad BG	510	.debugfs_init = i915_debugfs_init,
27c202ad BG	511	.debugfs_cleanup = i915_debugfs_cleanup,
955b12de	512	#endif
673a394b EA	513	.gem_init_object = i915_gem_init_object,
673a394b EA	514	.gem_free_object = i915_gem_free_object,
de151cf6	515	.gem_vm_ops = &i915_gem_vm_ops,
1da177e4 LT	516	.ioctls = i915_ioctls,
1da177e4 LT	517	.fops = {
b5e89ed5 DA	518	.owner = THIS_MODULE,
	519	.open = drm_open,
	520	.release = drm_release,
ed8b6704	521	.unlocked_ioctl = drm_ioctl,
de151cf6	522	.mmap = drm_gem_mmap,
b5e89ed5 DA	523	.poll = drm_poll,
b5e89ed5 DA	524	.fasync = drm_fasync,
c9a9c5e0	525	.read = drm_read,
8ca7c1df	526	#ifdef CONFIG_COMPAT
b5e89ed5	527	.compat_ioctl = i915_compat_ioctl,
8ca7c1df	528	#endif
22eae947 DA	529	},
22eae947 DA	530
1da177e4	531	.pci_driver = {
22eae947 DA	532	.name = DRIVER_NAME,
22eae947 DA	533	.id_table = pciidlist,
112b715e KH	534	.probe = i915_pci_probe,
112b715e KH	535	.remove = i915_pci_remove,
cbda12d7	536	.driver.pm = &i915_pm_ops,
22eae947	537	},
bc5f4523	538
22eae947 DA	539	.name = DRIVER_NAME,
	540	.desc = DRIVER_DESC,
	541	.date = DRIVER_DATE,
	542	.major = DRIVER_MAJOR,
	543	.minor = DRIVER_MINOR,
	544	.patchlevel = DRIVER_PATCHLEVEL,
1da177e4 LT	545	};
	546
	547	static int __init i915_init(void)
	548	{
	549	driver.num_ioctls = i915_max_ioctl;
79e53945	550
31169714 CW	551	i915_gem_shrinker_init();
31169714 CW	552
79e53945 JB	553	/*
	554	* If CONFIG_DRM_I915_KMS is set, default to KMS unless
	555	* explicitly disabled with the module pararmeter.
	556	*
	557	* Otherwise, just follow the parameter (defaulting to off).
	558	*
	559	* Allow optional vga_text_mode_force boot option to override
	560	* the default behavior.
	561	*/
	562	#if defined(CONFIG_DRM_I915_KMS)
	563	if (i915_modeset != 0)
	564	driver.driver_features \|= DRIVER_MODESET;
	565	#endif
	566	if (i915_modeset == 1)
	567	driver.driver_features \|= DRIVER_MODESET;
	568
	569	#ifdef CONFIG_VGA_CONSOLE
	570	if (vgacon_text_force() && i915_modeset == -1)
	571	driver.driver_features &= ~DRIVER_MODESET;
	572	#endif
	573
1da177e4 LT	574	return drm_init(&driver);
	575	}
	576
	577	static void __exit i915_exit(void)
	578	{
31169714	579	i915_gem_shrinker_exit();
1da177e4 LT	580	drm_exit(&driver);
	581	}
	582
	583	module_init(i915_init);
	584	module_exit(i915_exit);
	585
b5e89ed5 DA	586	MODULE_AUTHOR(DRIVER_AUTHOR);
b5e89ed5 DA	587	MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4	588	MODULE_LICENSE("GPL and additional rights");