[deliverable/linux.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 "cirrus_drv.h"

int cirrus_modeset = -1;

MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
module_param_named(modeset, cirrus_modeset, 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, 0x1af4, 0x1100, 0,
	  0, 0 },
	{0,}
};


static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
{
	struct apertures_struct *ap;
	bool primary = false;

	ap = alloc_apertures(1);
	if (!ap)
		return -ENOMEM;

	ap->ranges[0].base = pci_resource_start(pdev, 0);
	ap->ranges[0].size = pci_resource_len(pdev, 0);

#ifdef CONFIG_X86
	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
#endif
	remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
	kfree(ap);

	return 0;
}

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

	ret = cirrus_kick_out_firmware_fb(pdev);
	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();
		fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 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();
		fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 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,
#ifdef CONFIG_COMPAT
	.compat_ioctl = drm_compat_ioctl,
#endif
};
static struct drm_driver driver = {
	.driver_features = DRIVER_MODESET | DRIVER_GEM,
	.load = cirrus_driver_load,
	.unload = cirrus_driver_unload,
	.set_busid = drm_pci_set_busid,
	.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 = cirrus_gem_free_object,
	.dumb_create = cirrus_dumb_create,
	.dumb_map_offset = cirrus_dumb_mmap_offset,
	.dumb_destroy = drm_gem_dumb_destroy,
};

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)
{
#ifdef CONFIG_VGA_CONSOLE
	if (vgacon_text_force() && cirrus_modeset == -1)
		return -EINVAL;
#endif

	if (cirrus_modeset == 0)
		return -EINVAL;
	return drm_pci_init(&driver, &cirrus_pci_driver);
}

static void __exit cirrus_exit(void)
{
	drm_pci_exit(&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>
f9aa76a8 DA	15
	16	#include "cirrus_drv.h"
	17
	18	int cirrus_modeset = -1;
	19
	20	MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
	21	module_param_named(modeset, cirrus_modeset, int, 0400);
	22
	23	/*
	24	* This is the generic driver code. This binds the driver to the drm core,
	25	* which then performs further device association and calls our graphics init
	26	* functions
	27	*/
	28
	29	static struct drm_driver driver;
	30
	31	/* only bind to the cirrus chip in qemu */
9baa3c34	32	static const struct pci_device_id pciidlist[] = {
f9aa76a8 DA	33	{ PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, 0x1af4, 0x1100, 0,
	34	0, 0 },
	35	{0,}
	36	};
	37
dedc14e2	38
bfb82ff0	39	static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
dedc14e2 DA	40	{
	41	struct apertures_struct *ap;
	42	bool primary = false;
	43
	44	ap = alloc_apertures(1);
bfb82ff0 TR	45	if (!ap)
	46	return -ENOMEM;
	47
dedc14e2 DA	48	ap->ranges[0].base = pci_resource_start(pdev, 0);
	49	ap->ranges[0].size = pci_resource_len(pdev, 0);
	50
	51	#ifdef CONFIG_X86
	52	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
	53	#endif
	54	remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
	55	kfree(ap);
bfb82ff0 TR	56
bfb82ff0 TR	57	return 0;
dedc14e2 DA	58	}
dedc14e2 DA	59
56550d94 GKH	60	static int cirrus_pci_probe(struct pci_dev *pdev,
56550d94 GKH	61	const struct pci_device_id *ent)
f9aa76a8	62	{
bfb82ff0 TR	63	int ret;
	64
	65	ret = cirrus_kick_out_firmware_fb(pdev);
	66	if (ret)
	67	return ret;
dedc14e2	68
f9aa76a8 DA	69	return drm_get_pci_dev(pdev, ent, &driver);
	70	}
	71
	72	static void cirrus_pci_remove(struct pci_dev *pdev)
	73	{
	74	struct drm_device *dev = pci_get_drvdata(pdev);
	75
	76	drm_put_dev(dev);
	77	}
	78
8f8e7e14	79	#ifdef CONFIG_PM_SLEEP
2f1e8007 GH	80	static int cirrus_pm_suspend(struct device *dev)
	81	{
	82	struct pci_dev *pdev = to_pci_dev(dev);
	83	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	84	struct cirrus_device *cdev = drm_dev->dev_private;
	85
	86	drm_kms_helper_poll_disable(drm_dev);
	87
	88	if (cdev->mode_info.gfbdev) {
	89	console_lock();
	90	fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 1);
	91	console_unlock();
	92	}
	93
	94	return 0;
	95	}
	96
	97	static int cirrus_pm_resume(struct device *dev)
	98	{
	99	struct pci_dev *pdev = to_pci_dev(dev);
	100	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	101	struct cirrus_device *cdev = drm_dev->dev_private;
	102
	103	drm_helper_resume_force_mode(drm_dev);
	104
	105	if (cdev->mode_info.gfbdev) {
	106	console_lock();
	107	fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 0);
	108	console_unlock();
	109	}
	110
	111	drm_kms_helper_poll_enable(drm_dev);
	112	return 0;
	113	}
8f8e7e14	114	#endif
2f1e8007	115
f9aa76a8 DA	116	static const struct file_operations cirrus_driver_fops = {
	117	.owner = THIS_MODULE,
	118	.open = drm_open,
	119	.release = drm_release,
	120	.unlocked_ioctl = drm_ioctl,
	121	.mmap = cirrus_mmap,
	122	.poll = drm_poll,
804d74ab KP	123	#ifdef CONFIG_COMPAT
	124	.compat_ioctl = drm_compat_ioctl,
	125	#endif
f9aa76a8 DA	126	};
f9aa76a8 DA	127	static struct drm_driver driver = {
28185647	128	.driver_features = DRIVER_MODESET \| DRIVER_GEM,
f9aa76a8 DA	129	.load = cirrus_driver_load,
f9aa76a8 DA	130	.unload = cirrus_driver_unload,
915b4d11	131	.set_busid = drm_pci_set_busid,
f9aa76a8 DA	132	.fops = &cirrus_driver_fops,
	133	.name = DRIVER_NAME,
	134	.desc = DRIVER_DESC,
	135	.date = DRIVER_DATE,
	136	.major = DRIVER_MAJOR,
	137	.minor = DRIVER_MINOR,
	138	.patchlevel = DRIVER_PATCHLEVEL,
f9aa76a8 DA	139	.gem_free_object = cirrus_gem_free_object,
	140	.dumb_create = cirrus_dumb_create,
	141	.dumb_map_offset = cirrus_dumb_mmap_offset,
43387b37	142	.dumb_destroy = drm_gem_dumb_destroy,
f9aa76a8 DA	143	};
f9aa76a8 DA	144
2f1e8007 GH	145	static const struct dev_pm_ops cirrus_pm_ops = {
	146	SET_SYSTEM_SLEEP_PM_OPS(cirrus_pm_suspend,
	147	cirrus_pm_resume)
	148	};
	149
f9aa76a8 DA	150	static struct pci_driver cirrus_pci_driver = {
	151	.name = DRIVER_NAME,
	152	.id_table = pciidlist,
	153	.probe = cirrus_pci_probe,
	154	.remove = cirrus_pci_remove,
2f1e8007	155	.driver.pm = &cirrus_pm_ops,
f9aa76a8 DA	156	};
	157
	158	static int __init cirrus_init(void)
	159	{
4688a69d	160	#ifdef CONFIG_VGA_CONSOLE
f9aa76a8 DA	161	if (vgacon_text_force() && cirrus_modeset == -1)
f9aa76a8 DA	162	return -EINVAL;
4688a69d	163	#endif
f9aa76a8 DA	164
	165	if (cirrus_modeset == 0)
	166	return -EINVAL;
	167	return drm_pci_init(&driver, &cirrus_pci_driver);
	168	}
	169
	170	static void __exit cirrus_exit(void)
	171	{
	172	drm_pci_exit(&driver, &cirrus_pci_driver);
	173	}
	174
	175	module_init(cirrus_init);
	176	module_exit(cirrus_exit);
	177
	178	MODULE_DEVICE_TABLE(pci, pciidlist);
	179	MODULE_AUTHOR(DRIVER_AUTHOR);
	180	MODULE_DESCRIPTION(DRIVER_DESC);
	181	MODULE_LICENSE("GPL");