[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;
int cirrus_bpp = 24;

MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
module_param_named(modeset, cirrus_modeset, int, 0400);
MODULE_PARM_DESC(bpp, "Max bits-per-pixel (default:24)");
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, 0x1af4, 0x1100, 0,
	  0, 0 },
	{ PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, PCI_VENDOR_ID_XEN,
	  0x0001, 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();
		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,
#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;
7f551b1e	19	int cirrus_bpp = 24;
f9aa76a8 DA	20
	21	MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
	22	module_param_named(modeset, cirrus_modeset, int, 0400);
7f551b1e TI	23	MODULE_PARM_DESC(bpp, "Max bits-per-pixel (default:24)");
7f551b1e TI	24	module_param_named(bpp, cirrus_bpp, int, 0400);
f9aa76a8 DA	25
	26	/*
	27	* This is the generic driver code. This binds the driver to the drm core,
	28	* which then performs further device association and calls our graphics init
	29	* functions
	30	*/
	31
	32	static struct drm_driver driver;
	33
	34	/* only bind to the cirrus chip in qemu */
9baa3c34	35	static const struct pci_device_id pciidlist[] = {
f9aa76a8 DA	36	{ PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, 0x1af4, 0x1100, 0,
f9aa76a8 DA	37	0, 0 },
c0c3e735 OH	38	{ PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, PCI_VENDOR_ID_XEN,
c0c3e735 OH	39	0x0001, 0, 0, 0 },
f9aa76a8 DA	40	{0,}
	41	};
	42
dedc14e2	43
bfb82ff0	44	static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
dedc14e2 DA	45	{
	46	struct apertures_struct *ap;
	47	bool primary = false;
	48
	49	ap = alloc_apertures(1);
bfb82ff0 TR	50	if (!ap)
	51	return -ENOMEM;
	52
dedc14e2 DA	53	ap->ranges[0].base = pci_resource_start(pdev, 0);
	54	ap->ranges[0].size = pci_resource_len(pdev, 0);
	55
	56	#ifdef CONFIG_X86
	57	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
	58	#endif
	59	remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
	60	kfree(ap);
bfb82ff0 TR	61
bfb82ff0 TR	62	return 0;
dedc14e2 DA	63	}
dedc14e2 DA	64
56550d94 GKH	65	static int cirrus_pci_probe(struct pci_dev *pdev,
56550d94 GKH	66	const struct pci_device_id *ent)
f9aa76a8	67	{
bfb82ff0 TR	68	int ret;
	69
	70	ret = cirrus_kick_out_firmware_fb(pdev);
	71	if (ret)
	72	return ret;
dedc14e2	73
f9aa76a8 DA	74	return drm_get_pci_dev(pdev, ent, &driver);
	75	}
	76
	77	static void cirrus_pci_remove(struct pci_dev *pdev)
	78	{
	79	struct drm_device *dev = pci_get_drvdata(pdev);
	80
	81	drm_put_dev(dev);
	82	}
	83
8f8e7e14	84	#ifdef CONFIG_PM_SLEEP
2f1e8007 GH	85	static int cirrus_pm_suspend(struct device *dev)
	86	{
	87	struct pci_dev *pdev = to_pci_dev(dev);
	88	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	89	struct cirrus_device *cdev = drm_dev->dev_private;
	90
	91	drm_kms_helper_poll_disable(drm_dev);
	92
	93	if (cdev->mode_info.gfbdev) {
	94	console_lock();
2b9e6e37	95	drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 1);
2f1e8007 GH	96	console_unlock();
	97	}
	98
	99	return 0;
	100	}
	101
	102	static int cirrus_pm_resume(struct device *dev)
	103	{
	104	struct pci_dev *pdev = to_pci_dev(dev);
	105	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	106	struct cirrus_device *cdev = drm_dev->dev_private;
	107
	108	drm_helper_resume_force_mode(drm_dev);
	109
	110	if (cdev->mode_info.gfbdev) {
	111	console_lock();
2b9e6e37	112	drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 0);
2f1e8007 GH	113	console_unlock();
	114	}
	115
	116	drm_kms_helper_poll_enable(drm_dev);
	117	return 0;
	118	}
8f8e7e14	119	#endif
2f1e8007	120
f9aa76a8 DA	121	static const struct file_operations cirrus_driver_fops = {
	122	.owner = THIS_MODULE,
	123	.open = drm_open,
	124	.release = drm_release,
	125	.unlocked_ioctl = drm_ioctl,
	126	.mmap = cirrus_mmap,
	127	.poll = drm_poll,
804d74ab KP	128	#ifdef CONFIG_COMPAT
	129	.compat_ioctl = drm_compat_ioctl,
	130	#endif
f9aa76a8 DA	131	};
f9aa76a8 DA	132	static struct drm_driver driver = {
28185647	133	.driver_features = DRIVER_MODESET \| DRIVER_GEM,
f9aa76a8 DA	134	.load = cirrus_driver_load,
f9aa76a8 DA	135	.unload = cirrus_driver_unload,
915b4d11	136	.set_busid = drm_pci_set_busid,
f9aa76a8 DA	137	.fops = &cirrus_driver_fops,
	138	.name = DRIVER_NAME,
	139	.desc = DRIVER_DESC,
	140	.date = DRIVER_DATE,
	141	.major = DRIVER_MAJOR,
	142	.minor = DRIVER_MINOR,
	143	.patchlevel = DRIVER_PATCHLEVEL,
f9aa76a8 DA	144	.gem_free_object = cirrus_gem_free_object,
	145	.dumb_create = cirrus_dumb_create,
	146	.dumb_map_offset = cirrus_dumb_mmap_offset,
43387b37	147	.dumb_destroy = drm_gem_dumb_destroy,
f9aa76a8 DA	148	};
f9aa76a8 DA	149
2f1e8007 GH	150	static const struct dev_pm_ops cirrus_pm_ops = {
	151	SET_SYSTEM_SLEEP_PM_OPS(cirrus_pm_suspend,
	152	cirrus_pm_resume)
	153	};
	154
f9aa76a8 DA	155	static struct pci_driver cirrus_pci_driver = {
	156	.name = DRIVER_NAME,
	157	.id_table = pciidlist,
	158	.probe = cirrus_pci_probe,
	159	.remove = cirrus_pci_remove,
2f1e8007	160	.driver.pm = &cirrus_pm_ops,
f9aa76a8 DA	161	};
	162
	163	static int __init cirrus_init(void)
	164	{
4688a69d	165	#ifdef CONFIG_VGA_CONSOLE
f9aa76a8 DA	166	if (vgacon_text_force() && cirrus_modeset == -1)
f9aa76a8 DA	167	return -EINVAL;
4688a69d	168	#endif
f9aa76a8 DA	169
	170	if (cirrus_modeset == 0)
	171	return -EINVAL;
	172	return drm_pci_init(&driver, &cirrus_pci_driver);
	173	}
	174
	175	static void __exit cirrus_exit(void)
	176	{
	177	drm_pci_exit(&driver, &cirrus_pci_driver);
	178	}
	179
	180	module_init(cirrus_init);
	181	module_exit(cirrus_exit);
	182
	183	MODULE_DEVICE_TABLE(pci, pciidlist);
	184	MODULE_AUTHOR(DRIVER_AUTHOR);
	185	MODULE_DESCRIPTION(DRIVER_DESC);
	186	MODULE_LICENSE("GPL");