[GitHub/mt8127/android_kernel_alcatel_ttab.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 "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 DEFINE_PCI_DEVICE_TABLE(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);
}

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
	.fasync = drm_fasync,
};
static struct drm_driver driver = {
	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_USE_MTRR,
	.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_init_object = cirrus_gem_init_object,
	.gem_free_object = cirrus_gem_free_object,
	.dumb_create = cirrus_dumb_create,
	.dumb_map_offset = cirrus_dumb_mmap_offset,
	.dumb_destroy = cirrus_dumb_destroy,
};

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

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>
f9aa76a8 DA	14
	15	#include "cirrus_drv.h"
	16
	17	int cirrus_modeset = -1;
	18
	19	MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
	20	module_param_named(modeset, cirrus_modeset, int, 0400);
	21
	22	/*
	23	* This is the generic driver code. This binds the driver to the drm core,
	24	* which then performs further device association and calls our graphics init
	25	* functions
	26	*/
	27
	28	static struct drm_driver driver;
	29
	30	/* only bind to the cirrus chip in qemu */
	31	static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
	32	{ PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, 0x1af4, 0x1100, 0,
	33	0, 0 },
	34	{0,}
	35	};
	36
dedc14e2	37
bfb82ff0	38	static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
dedc14e2 DA	39	{
	40	struct apertures_struct *ap;
	41	bool primary = false;
	42
	43	ap = alloc_apertures(1);
bfb82ff0 TR	44	if (!ap)
	45	return -ENOMEM;
	46
dedc14e2 DA	47	ap->ranges[0].base = pci_resource_start(pdev, 0);
	48	ap->ranges[0].size = pci_resource_len(pdev, 0);
	49
	50	#ifdef CONFIG_X86
	51	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
	52	#endif
	53	remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
	54	kfree(ap);
bfb82ff0 TR	55
bfb82ff0 TR	56	return 0;
dedc14e2 DA	57	}
dedc14e2 DA	58
56550d94 GKH	59	static int cirrus_pci_probe(struct pci_dev *pdev,
56550d94 GKH	60	const struct pci_device_id *ent)
f9aa76a8	61	{
bfb82ff0 TR	62	int ret;
	63
	64	ret = cirrus_kick_out_firmware_fb(pdev);
	65	if (ret)
	66	return ret;
dedc14e2	67
f9aa76a8 DA	68	return drm_get_pci_dev(pdev, ent, &driver);
	69	}
	70
	71	static void cirrus_pci_remove(struct pci_dev *pdev)
	72	{
	73	struct drm_device *dev = pci_get_drvdata(pdev);
	74
	75	drm_put_dev(dev);
	76	}
	77
	78	static const struct file_operations cirrus_driver_fops = {
	79	.owner = THIS_MODULE,
	80	.open = drm_open,
	81	.release = drm_release,
	82	.unlocked_ioctl = drm_ioctl,
	83	.mmap = cirrus_mmap,
	84	.poll = drm_poll,
804d74ab KP	85	#ifdef CONFIG_COMPAT
	86	.compat_ioctl = drm_compat_ioctl,
	87	#endif
f9aa76a8 DA	88	.fasync = drm_fasync,
	89	};
	90	static struct drm_driver driver = {
	91	.driver_features = DRIVER_MODESET \| DRIVER_GEM \| DRIVER_USE_MTRR,
	92	.load = cirrus_driver_load,
	93	.unload = cirrus_driver_unload,
	94	.fops = &cirrus_driver_fops,
	95	.name = DRIVER_NAME,
	96	.desc = DRIVER_DESC,
	97	.date = DRIVER_DATE,
	98	.major = DRIVER_MAJOR,
	99	.minor = DRIVER_MINOR,
	100	.patchlevel = DRIVER_PATCHLEVEL,
	101	.gem_init_object = cirrus_gem_init_object,
	102	.gem_free_object = cirrus_gem_free_object,
	103	.dumb_create = cirrus_dumb_create,
	104	.dumb_map_offset = cirrus_dumb_mmap_offset,
	105	.dumb_destroy = cirrus_dumb_destroy,
	106	};
	107
	108	static struct pci_driver cirrus_pci_driver = {
	109	.name = DRIVER_NAME,
	110	.id_table = pciidlist,
	111	.probe = cirrus_pci_probe,
	112	.remove = cirrus_pci_remove,
	113	};
	114
	115	static int __init cirrus_init(void)
	116	{
4688a69d	117	#ifdef CONFIG_VGA_CONSOLE
f9aa76a8 DA	118	if (vgacon_text_force() && cirrus_modeset == -1)
f9aa76a8 DA	119	return -EINVAL;
4688a69d	120	#endif
f9aa76a8 DA	121
	122	if (cirrus_modeset == 0)
	123	return -EINVAL;
	124	return drm_pci_init(&driver, &cirrus_pci_driver);
	125	}
	126
	127	static void __exit cirrus_exit(void)
	128	{
	129	drm_pci_exit(&driver, &cirrus_pci_driver);
	130	}
	131
	132	module_init(cirrus_init);
	133	module_exit(cirrus_exit);
	134
	135	MODULE_DEVICE_TABLE(pci, pciidlist);
	136	MODULE_AUTHOR(DRIVER_AUTHOR);
	137	MODULE_DESCRIPTION(DRIVER_DESC);
	138	MODULE_LICENSE("GPL");