[thirdparty/kernel/stable.git] / drivers / gpu / drm / cirrus / cirrus_drv.c

/*
 * Copyright 2012 Red Hat <mjg@redhat.com>
 *
 * This file is subject to the terms and conditions of the GNU General
 * Public License version 2. See the file COPYING in the main
 * directory of this archive for more details.
 *
 * Authors: Matthew Garrett
 *          Dave Airlie
 */
#include <linux/module.h>
#include <linux/console.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_probe_helper.h>

#include "cirrus_drv.h"

int cirrus_modeset = -1;
int cirrus_bpp = 16;

MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
module_param_named(modeset, cirrus_modeset, int, 0400);
MODULE_PARM_DESC(bpp, "Max bits-per-pixel (default:16)");
module_param_named(bpp, cirrus_bpp, int, 0400);

/*
 * This is the generic driver code. This binds the driver to the drm core,
 * which then performs further device association and calls our graphics init
 * functions
 */

static struct drm_driver driver;

/* only bind to the cirrus chip in qemu */
static const struct pci_device_id pciidlist[] = {
	{ PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
	  PCI_SUBVENDOR_ID_REDHAT_QUMRANET, PCI_SUBDEVICE_ID_QEMU,
	  0, 0, 0 },
	{ PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, PCI_VENDOR_ID_XEN,
	  0x0001, 0, 0, 0 },
	{0,}
};


static int cirrus_pci_probe(struct pci_dev *pdev,
			    const struct pci_device_id *ent)
{
	int ret;

	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "cirrusdrmfb");
	if (ret)
		return ret;

	return drm_get_pci_dev(pdev, ent, &driver);
}

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

	drm_put_dev(dev);
}

#ifdef CONFIG_PM_SLEEP
static int cirrus_pm_suspend(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	struct cirrus_device *cdev = drm_dev->dev_private;

	drm_kms_helper_poll_disable(drm_dev);

	if (cdev->mode_info.gfbdev) {
		console_lock();
		drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 1);
		console_unlock();
	}

	return 0;
}

static int cirrus_pm_resume(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	struct cirrus_device *cdev = drm_dev->dev_private;

	drm_helper_resume_force_mode(drm_dev);

	if (cdev->mode_info.gfbdev) {
		console_lock();
		drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 0);
		console_unlock();
	}

	drm_kms_helper_poll_enable(drm_dev);
	return 0;
}
#endif

static const struct file_operations cirrus_driver_fops = {
	.owner = THIS_MODULE,
	.open = drm_open,
	.release = drm_release,
	.unlocked_ioctl = drm_ioctl,
	.mmap = cirrus_mmap,
	.poll = drm_poll,
	.compat_ioctl = drm_compat_ioctl,
};
static struct drm_driver driver = {
	.driver_features = DRIVER_MODESET | DRIVER_GEM,
	.load = cirrus_driver_load,
	.unload = cirrus_driver_unload,
	.fops = &cirrus_driver_fops,
	.name = DRIVER_NAME,
	.desc = DRIVER_DESC,
	.date = DRIVER_DATE,
	.major = DRIVER_MAJOR,
	.minor = DRIVER_MINOR,
	.patchlevel = DRIVER_PATCHLEVEL,
	.gem_free_object_unlocked = cirrus_gem_free_object,
	.dumb_create = cirrus_dumb_create,
	.dumb_map_offset = cirrus_dumb_mmap_offset,
};

static const struct dev_pm_ops cirrus_pm_ops = {
	SET_SYSTEM_SLEEP_PM_OPS(cirrus_pm_suspend,
				cirrus_pm_resume)
};

static struct pci_driver cirrus_pci_driver = {
	.name = DRIVER_NAME,
	.id_table = pciidlist,
	.probe = cirrus_pci_probe,
	.remove = cirrus_pci_remove,
	.driver.pm = &cirrus_pm_ops,
};

static int __init cirrus_init(void)
{
	if (vgacon_text_force() && cirrus_modeset == -1)
		return -EINVAL;

	if (cirrus_modeset == 0)
		return -EINVAL;
	return pci_register_driver(&cirrus_pci_driver);
}

static void __exit cirrus_exit(void)
{
	pci_unregister_driver(&cirrus_pci_driver);
}

module_init(cirrus_init);
module_exit(cirrus_exit);

MODULE_DEVICE_TABLE(pci, pciidlist);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
Commit	Line	Data
f9aa76a8 DA	1	/*
	2	* Copyright 2012 Red Hat <mjg@redhat.com>
	3	*
	4	* This file is subject to the terms and conditions of the GNU General
	5	* Public License version 2. See the file COPYING in the main
	6	* directory of this archive for more details.
	7	*
	8	* Authors: Matthew Garrett
	9	* Dave Airlie
	10	*/
	11	#include <linux/module.h>
	12	#include <linux/console.h>
760285e7	13	#include <drm/drmP.h>
2f1e8007	14	#include <drm/drm_crtc_helper.h>
fcd70cd3	15	#include <drm/drm_probe_helper.h>
f9aa76a8 DA	16
	17	#include "cirrus_drv.h"
	18
	19	int cirrus_modeset = -1;
550f1744	20	int cirrus_bpp = 16;
f9aa76a8 DA	21
	22	MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
	23	module_param_named(modeset, cirrus_modeset, int, 0400);
550f1744	24	MODULE_PARM_DESC(bpp, "Max bits-per-pixel (default:16)");
7f551b1e	25	module_param_named(bpp, cirrus_bpp, int, 0400);
f9aa76a8 DA	26
	27	/*
	28	* This is the generic driver code. This binds the driver to the drm core,
	29	* which then performs further device association and calls our graphics init
	30	* functions
	31	*/
	32
	33	static struct drm_driver driver;
	34
	35	/* only bind to the cirrus chip in qemu */
9baa3c34	36	static const struct pci_device_id pciidlist[] = {
caf02abf RJ	37	{ PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
	38	PCI_SUBVENDOR_ID_REDHAT_QUMRANET, PCI_SUBDEVICE_ID_QEMU,
	39	0, 0, 0 },
c0c3e735 OH	40	{ PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, PCI_VENDOR_ID_XEN,
c0c3e735 OH	41	0x0001, 0, 0, 0 },
f9aa76a8 DA	42	{0,}
	43	};
	44
dedc14e2	45
56550d94 GKH	46	static int cirrus_pci_probe(struct pci_dev *pdev,
56550d94 GKH	47	const struct pci_device_id *ent)
f9aa76a8	48	{
bfb82ff0 TR	49	int ret;
bfb82ff0 TR	50
256ee417	51	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "cirrusdrmfb");
bfb82ff0 TR	52	if (ret)
bfb82ff0 TR	53	return ret;
dedc14e2	54
f9aa76a8 DA	55	return drm_get_pci_dev(pdev, ent, &driver);
	56	}
	57
	58	static void cirrus_pci_remove(struct pci_dev *pdev)
	59	{
	60	struct drm_device *dev = pci_get_drvdata(pdev);
	61
	62	drm_put_dev(dev);
	63	}
	64
8f8e7e14	65	#ifdef CONFIG_PM_SLEEP
2f1e8007 GH	66	static int cirrus_pm_suspend(struct device *dev)
	67	{
	68	struct pci_dev *pdev = to_pci_dev(dev);
	69	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	70	struct cirrus_device *cdev = drm_dev->dev_private;
	71
	72	drm_kms_helper_poll_disable(drm_dev);
	73
	74	if (cdev->mode_info.gfbdev) {
	75	console_lock();
2b9e6e37	76	drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 1);
2f1e8007 GH	77	console_unlock();
	78	}
	79
	80	return 0;
	81	}
	82
	83	static int cirrus_pm_resume(struct device *dev)
	84	{
	85	struct pci_dev *pdev = to_pci_dev(dev);
	86	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	87	struct cirrus_device *cdev = drm_dev->dev_private;
	88
	89	drm_helper_resume_force_mode(drm_dev);
	90
	91	if (cdev->mode_info.gfbdev) {
	92	console_lock();
2b9e6e37	93	drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 0);
2f1e8007 GH	94	console_unlock();
	95	}
	96
	97	drm_kms_helper_poll_enable(drm_dev);
	98	return 0;
	99	}
8f8e7e14	100	#endif
2f1e8007	101
f9aa76a8 DA	102	static const struct file_operations cirrus_driver_fops = {
	103	.owner = THIS_MODULE,
	104	.open = drm_open,
	105	.release = drm_release,
	106	.unlocked_ioctl = drm_ioctl,
	107	.mmap = cirrus_mmap,
	108	.poll = drm_poll,
804d74ab	109	.compat_ioctl = drm_compat_ioctl,
f9aa76a8 DA	110	};
f9aa76a8 DA	111	static struct drm_driver driver = {
28185647	112	.driver_features = DRIVER_MODESET \| DRIVER_GEM,
f9aa76a8 DA	113	.load = cirrus_driver_load,
	114	.unload = cirrus_driver_unload,
	115	.fops = &cirrus_driver_fops,
	116	.name = DRIVER_NAME,
	117	.desc = DRIVER_DESC,
	118	.date = DRIVER_DATE,
	119	.major = DRIVER_MAJOR,
	120	.minor = DRIVER_MINOR,
	121	.patchlevel = DRIVER_PATCHLEVEL,
f5993eeb	122	.gem_free_object_unlocked = cirrus_gem_free_object,
f9aa76a8 DA	123	.dumb_create = cirrus_dumb_create,
f9aa76a8 DA	124	.dumb_map_offset = cirrus_dumb_mmap_offset,
f9aa76a8 DA	125	};
f9aa76a8 DA	126
2f1e8007 GH	127	static const struct dev_pm_ops cirrus_pm_ops = {
	128	SET_SYSTEM_SLEEP_PM_OPS(cirrus_pm_suspend,
	129	cirrus_pm_resume)
	130	};
	131
f9aa76a8 DA	132	static struct pci_driver cirrus_pci_driver = {
	133	.name = DRIVER_NAME,
	134	.id_table = pciidlist,
	135	.probe = cirrus_pci_probe,
	136	.remove = cirrus_pci_remove,
2f1e8007	137	.driver.pm = &cirrus_pm_ops,
f9aa76a8 DA	138	};
	139
	140	static int __init cirrus_init(void)
	141	{
	142	if (vgacon_text_force() && cirrus_modeset == -1)
	143	return -EINVAL;
	144
	145	if (cirrus_modeset == 0)
	146	return -EINVAL;
10631d72	147	return pci_register_driver(&cirrus_pci_driver);
f9aa76a8 DA	148	}
	149
	150	static void __exit cirrus_exit(void)
	151	{
10631d72	152	pci_unregister_driver(&cirrus_pci_driver);
f9aa76a8 DA	153	}
	154
	155	module_init(cirrus_init);
	156	module_exit(cirrus_exit);
	157
	158	MODULE_DEVICE_TABLE(pci, pciidlist);
	159	MODULE_AUTHOR(DRIVER_AUTHOR);
	160	MODULE_DESCRIPTION(DRIVER_DESC);
	161	MODULE_LICENSE("GPL");