[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,
	  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_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
	drm_fb_helper_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_unlocked = 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)
{
	if (vgacon_text_force() && cirrus_modeset == -1)
		return -EINVAL;

	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[] = {
caf02abf RJ	36	{ PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
	37	PCI_SUBVENDOR_ID_REDHAT_QUMRANET, PCI_SUBDEVICE_ID_QEMU,
	38	0, 0, 0 },
c0c3e735 OH	39	{ PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, PCI_VENDOR_ID_XEN,
c0c3e735 OH	40	0x0001, 0, 0, 0 },
f9aa76a8 DA	41	{0,}
	42	};
	43
dedc14e2	44
bfb82ff0	45	static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
dedc14e2 DA	46	{
	47	struct apertures_struct *ap;
	48	bool primary = false;
	49
	50	ap = alloc_apertures(1);
bfb82ff0 TR	51	if (!ap)
	52	return -ENOMEM;
	53
dedc14e2 DA	54	ap->ranges[0].base = pci_resource_start(pdev, 0);
	55	ap->ranges[0].size = pci_resource_len(pdev, 0);
	56
	57	#ifdef CONFIG_X86
	58	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
	59	#endif
44adece5	60	drm_fb_helper_remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
dedc14e2	61	kfree(ap);
bfb82ff0 TR	62
bfb82ff0 TR	63	return 0;
dedc14e2 DA	64	}
dedc14e2 DA	65
56550d94 GKH	66	static int cirrus_pci_probe(struct pci_dev *pdev,
56550d94 GKH	67	const struct pci_device_id *ent)
f9aa76a8	68	{
bfb82ff0 TR	69	int ret;
	70
	71	ret = cirrus_kick_out_firmware_fb(pdev);
	72	if (ret)
	73	return ret;
dedc14e2	74
f9aa76a8 DA	75	return drm_get_pci_dev(pdev, ent, &driver);
	76	}
	77
	78	static void cirrus_pci_remove(struct pci_dev *pdev)
	79	{
	80	struct drm_device *dev = pci_get_drvdata(pdev);
	81
	82	drm_put_dev(dev);
	83	}
	84
8f8e7e14	85	#ifdef CONFIG_PM_SLEEP
2f1e8007 GH	86	static int cirrus_pm_suspend(struct device *dev)
	87	{
	88	struct pci_dev *pdev = to_pci_dev(dev);
	89	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	90	struct cirrus_device *cdev = drm_dev->dev_private;
	91
	92	drm_kms_helper_poll_disable(drm_dev);
	93
	94	if (cdev->mode_info.gfbdev) {
	95	console_lock();
2b9e6e37	96	drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 1);
2f1e8007 GH	97	console_unlock();
	98	}
	99
	100	return 0;
	101	}
	102
	103	static int cirrus_pm_resume(struct device *dev)
	104	{
	105	struct pci_dev *pdev = to_pci_dev(dev);
	106	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	107	struct cirrus_device *cdev = drm_dev->dev_private;
	108
	109	drm_helper_resume_force_mode(drm_dev);
	110
	111	if (cdev->mode_info.gfbdev) {
	112	console_lock();
2b9e6e37	113	drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 0);
2f1e8007 GH	114	console_unlock();
	115	}
	116
	117	drm_kms_helper_poll_enable(drm_dev);
	118	return 0;
	119	}
8f8e7e14	120	#endif
2f1e8007	121
f9aa76a8 DA	122	static const struct file_operations cirrus_driver_fops = {
	123	.owner = THIS_MODULE,
	124	.open = drm_open,
	125	.release = drm_release,
	126	.unlocked_ioctl = drm_ioctl,
	127	.mmap = cirrus_mmap,
	128	.poll = drm_poll,
804d74ab KP	129	#ifdef CONFIG_COMPAT
	130	.compat_ioctl = drm_compat_ioctl,
	131	#endif
f9aa76a8 DA	132	};
f9aa76a8 DA	133	static struct drm_driver driver = {
28185647	134	.driver_features = DRIVER_MODESET \| DRIVER_GEM,
f9aa76a8 DA	135	.load = cirrus_driver_load,
f9aa76a8 DA	136	.unload = cirrus_driver_unload,
915b4d11	137	.set_busid = drm_pci_set_busid,
f9aa76a8 DA	138	.fops = &cirrus_driver_fops,
	139	.name = DRIVER_NAME,
	140	.desc = DRIVER_DESC,
	141	.date = DRIVER_DATE,
	142	.major = DRIVER_MAJOR,
	143	.minor = DRIVER_MINOR,
	144	.patchlevel = DRIVER_PATCHLEVEL,
f5993eeb	145	.gem_free_object_unlocked = cirrus_gem_free_object,
f9aa76a8 DA	146	.dumb_create = cirrus_dumb_create,
f9aa76a8 DA	147	.dumb_map_offset = cirrus_dumb_mmap_offset,
43387b37	148	.dumb_destroy = drm_gem_dumb_destroy,
f9aa76a8 DA	149	};
f9aa76a8 DA	150
2f1e8007 GH	151	static const struct dev_pm_ops cirrus_pm_ops = {
	152	SET_SYSTEM_SLEEP_PM_OPS(cirrus_pm_suspend,
	153	cirrus_pm_resume)
	154	};
	155
f9aa76a8 DA	156	static struct pci_driver cirrus_pci_driver = {
	157	.name = DRIVER_NAME,
	158	.id_table = pciidlist,
	159	.probe = cirrus_pci_probe,
	160	.remove = cirrus_pci_remove,
2f1e8007	161	.driver.pm = &cirrus_pm_ops,
f9aa76a8 DA	162	};
	163
	164	static int __init cirrus_init(void)
	165	{
	166	if (vgacon_text_force() && cirrus_modeset == -1)
	167	return -EINVAL;
	168
	169	if (cirrus_modeset == 0)
	170	return -EINVAL;
	171	return drm_pci_init(&driver, &cirrus_pci_driver);
	172	}
	173
	174	static void __exit cirrus_exit(void)
	175	{
	176	drm_pci_exit(&driver, &cirrus_pci_driver);
	177	}
	178
	179	module_init(cirrus_init);
	180	module_exit(cirrus_exit);
	181
	182	MODULE_DEVICE_TABLE(pci, pciidlist);
	183	MODULE_AUTHOR(DRIVER_AUTHOR);
	184	MODULE_DESCRIPTION(DRIVER_DESC);
	185	MODULE_LICENSE("GPL");