[mirror_ubuntu-eoan-kernel.git] / drivers / gpu / drm / qxl / qxl_drv.c

/* vim: set ts=8 sw=8 tw=78 ai noexpandtab */
/* qxl_drv.c -- QXL driver -*- linux-c -*-
 *
 * Copyright 2011 Red Hat, Inc.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *    Dave Airlie <airlie@redhat.com>
 *    Alon Levy <alevy@redhat.com>
 */

#include <linux/module.h>
#include <linux/console.h>

#include <drm/drmP.h>
#include <drm/drm.h>
#include <drm/drm_crtc_helper.h>
#include "qxl_drv.h"
#include "qxl_object.h"

static const struct pci_device_id pciidlist[] = {
	{ 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8,
	  0xffff00, 0 },
	{ 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8,
	  0xffff00, 0 },
	{ 0, 0, 0 },
};
MODULE_DEVICE_TABLE(pci, pciidlist);

static int qxl_modeset = -1;
int qxl_num_crtc = 4;

MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
module_param_named(modeset, qxl_modeset, int, 0400);

MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)");
module_param_named(num_heads, qxl_num_crtc, int, 0400);

static struct drm_driver qxl_driver;
static struct pci_driver qxl_pci_driver;

static int
qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	struct qxl_device *qdev;
	int ret;

	if (pdev->revision < 4) {
		DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
			  " use xf86-video-qxl in user mode");
		return -EINVAL; /* TODO: ENODEV ? */
	}

	qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
	if (!qdev)
		return -ENOMEM;

	ret = pci_enable_device(pdev);
	if (ret)
		goto free_dev;

	ret = qxl_device_init(qdev, &qxl_driver, pdev);
	if (ret)
		goto disable_pci;

	ret = qxl_modeset_init(qdev);
	if (ret)
		goto unload;

	drm_kms_helper_poll_init(&qdev->ddev);

	/* Complete initialization. */
	ret = drm_dev_register(&qdev->ddev, ent->driver_data);
	if (ret)
		goto modeset_cleanup;

	return 0;

modeset_cleanup:
	qxl_modeset_fini(qdev);
unload:
	qxl_device_fini(qdev);
disable_pci:
	pci_disable_device(pdev);
free_dev:
	kfree(qdev);
	return ret;
}

static void
qxl_pci_remove(struct pci_dev *pdev)
{
	struct drm_device *dev = pci_get_drvdata(pdev);
	struct qxl_device *qdev = dev->dev_private;

	drm_dev_unregister(dev);

	qxl_modeset_fini(qdev);
	qxl_device_fini(qdev);

	dev->dev_private = NULL;
	kfree(qdev);
	drm_dev_put(dev);
}

static const struct file_operations qxl_fops = {
	.owner = THIS_MODULE,
	.open = drm_open,
	.release = drm_release,
	.unlocked_ioctl = drm_ioctl,
	.poll = drm_poll,
	.read = drm_read,
	.mmap = qxl_mmap,
};

static int qxl_drm_freeze(struct drm_device *dev)
{
	struct pci_dev *pdev = dev->pdev;
	struct qxl_device *qdev = dev->dev_private;
	int ret;

	ret = drm_mode_config_helper_suspend(dev);
	if (ret)
		return ret;

	qxl_destroy_monitors_object(qdev);
	qxl_surf_evict(qdev);
	qxl_vram_evict(qdev);

	while (!qxl_check_idle(qdev->command_ring));
	while (!qxl_check_idle(qdev->release_ring))
		qxl_queue_garbage_collect(qdev, 1);

	pci_save_state(pdev);

	return 0;
}

static int qxl_drm_resume(struct drm_device *dev, bool thaw)
{
	struct qxl_device *qdev = dev->dev_private;

	qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
	if (!thaw) {
		qxl_reinit_memslots(qdev);
		qxl_ring_init_hdr(qdev->release_ring);
	}

	qxl_create_monitors_object(qdev);
	return drm_mode_config_helper_resume(dev);
}

static int qxl_pm_suspend(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	int error;

	error = qxl_drm_freeze(drm_dev);
	if (error)
		return error;

	pci_disable_device(pdev);
	pci_set_power_state(pdev, PCI_D3hot);
	return 0;
}

static int qxl_pm_resume(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);

	pci_set_power_state(pdev, PCI_D0);
	pci_restore_state(pdev);
	if (pci_enable_device(pdev)) {
		return -EIO;
	}

	return qxl_drm_resume(drm_dev, false);
}

static int qxl_pm_thaw(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);

	return qxl_drm_resume(drm_dev, true);
}

static int qxl_pm_freeze(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);

	return qxl_drm_freeze(drm_dev);
}

static int qxl_pm_restore(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	struct qxl_device *qdev = drm_dev->dev_private;

	qxl_io_reset(qdev);
	return qxl_drm_resume(drm_dev, false);
}

static const struct dev_pm_ops qxl_pm_ops = {
	.suspend = qxl_pm_suspend,
	.resume = qxl_pm_resume,
	.freeze = qxl_pm_freeze,
	.thaw = qxl_pm_thaw,
	.poweroff = qxl_pm_freeze,
	.restore = qxl_pm_restore,
};
static struct pci_driver qxl_pci_driver = {
	 .name = DRIVER_NAME,
	 .id_table = pciidlist,
	 .probe = qxl_pci_probe,
	 .remove = qxl_pci_remove,
	 .driver.pm = &qxl_pm_ops,
};

static struct drm_driver qxl_driver = {
	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
			   DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
			   DRIVER_ATOMIC,

	.dumb_create = qxl_mode_dumb_create,
	.dumb_map_offset = qxl_mode_dumb_mmap,
#if defined(CONFIG_DEBUG_FS)
	.debugfs_init = qxl_debugfs_init,
#endif
	.gem_prime_export = drm_gem_prime_export,
	.gem_prime_import = drm_gem_prime_import,
	.gem_prime_pin = qxl_gem_prime_pin,
	.gem_prime_unpin = qxl_gem_prime_unpin,
	.gem_prime_vmap = qxl_gem_prime_vmap,
	.gem_prime_vunmap = qxl_gem_prime_vunmap,
	.gem_prime_mmap = qxl_gem_prime_mmap,
	.gem_free_object_unlocked = qxl_gem_object_free,
	.gem_open_object = qxl_gem_object_open,
	.gem_close_object = qxl_gem_object_close,
	.fops = &qxl_fops,
	.ioctls = qxl_ioctls,
	.irq_handler = qxl_irq_handler,
	.name = DRIVER_NAME,
	.desc = DRIVER_DESC,
	.date = DRIVER_DATE,
	.major = 0,
	.minor = 1,
	.patchlevel = 0,
};

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

	if (qxl_modeset == 0)
		return -EINVAL;
	qxl_driver.num_ioctls = qxl_max_ioctls;
	return pci_register_driver(&qxl_pci_driver);
}

static void __exit qxl_exit(void)
{
	pci_unregister_driver(&qxl_pci_driver);
}

module_init(qxl_init);
module_exit(qxl_exit);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL and additional rights");
Commit	Line	Data
f64122c1 DA	1	/* vim: set ts=8 sw=8 tw=78 ai noexpandtab */
	2	/* qxl_drv.c -- QXL driver -- linux-c --
	3	*
	4	* Copyright 2011 Red Hat, Inc.
	5	* All Rights Reserved.
	6	*
	7	* Permission is hereby granted, free of charge, to any person obtaining a
	8	* copy of this software and associated documentation files (the "Software"),
	9	* to deal in the Software without restriction, including without limitation
	10	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	11	* and/or sell copies of the Software, and to permit persons to whom the
	12	* Software is furnished to do so, subject to the following conditions:
	13	*
	14	* The above copyright notice and this permission notice (including the next
	15	* paragraph) shall be included in all copies or substantial portions of the
	16	* Software.
	17	*
	18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	19	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	20	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	21	* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
	22	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	23	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	24	* OTHER DEALINGS IN THE SOFTWARE.
	25	*
	26	* Authors:
	27	* Dave Airlie <airlie@redhat.com>
	28	* Alon Levy <alevy@redhat.com>
	29	*/
	30
	31	#include <linux/module.h>
	32	#include <linux/console.h>
	33
edaf492c MY	34	#include <drm/drmP.h>
	35	#include <drm/drm.h>
	36	#include <drm/drm_crtc_helper.h>
f64122c1	37	#include "qxl_drv.h"
d84300bf	38	#include "qxl_object.h"
f64122c1	39
9baa3c34	40	static const struct pci_device_id pciidlist[] = {
f64122c1 DA	41	{ 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8,
	42	0xffff00, 0 },
	43	{ 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8,
	44	0xffff00, 0 },
	45	{ 0, 0, 0 },
	46	};
	47	MODULE_DEVICE_TABLE(pci, pciidlist);
	48
6d01f1f5	49	static int qxl_modeset = -1;
07f8d9bd	50	int qxl_num_crtc = 4;
f64122c1 DA	51
	52	MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
	53	module_param_named(modeset, qxl_modeset, int, 0400);
	54
07f8d9bd DA	55	MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)");
	56	module_param_named(num_heads, qxl_num_crtc, int, 0400);
	57
f64122c1 DA	58	static struct drm_driver qxl_driver;
	59	static struct pci_driver qxl_pci_driver;
	60
	61	static int
	62	qxl_pci_probe(struct pci_dev pdev, const struct pci_device_id ent)
	63	{
2b65d567 GKB	64	struct qxl_device *qdev;
	65	int ret;
	66
f64122c1 DA	67	if (pdev->revision < 4) {
	68	DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
	69	" use xf86-video-qxl in user mode");
	70	return -EINVAL; /* TODO: ENODEV ? */
	71	}
2b65d567	72
2b65d567	73	qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
cbdded7f GKB	74	if (!qdev)
cbdded7f GKB	75	return -ENOMEM;
2b65d567 GKB	76
	77	ret = pci_enable_device(pdev);
	78	if (ret)
cbdded7f	79	goto free_dev;
2b65d567	80
aa5b62ba	81	ret = qxl_device_init(qdev, &qxl_driver, pdev);
2b65d567 GKB	82	if (ret)
	83	goto disable_pci;
	84
2b65d567 GKB	85	ret = qxl_modeset_init(qdev);
2b65d567 GKB	86	if (ret)
64ca824e	87	goto unload;
2b65d567	88
cbdded7f	89	drm_kms_helper_poll_init(&qdev->ddev);
2b65d567 GKB	90
2b65d567 GKB	91	/* Complete initialization. */
cbdded7f	92	ret = drm_dev_register(&qdev->ddev, ent->driver_data);
2b65d567 GKB	93	if (ret)
	94	goto modeset_cleanup;
	95
	96	return 0;
	97
	98	modeset_cleanup:
	99	qxl_modeset_fini(qdev);
2b65d567 GKB	100	unload:
	101	qxl_device_fini(qdev);
	102	disable_pci:
	103	pci_disable_device(pdev);
cbdded7f	104	free_dev:
2b65d567	105	kfree(qdev);
2b65d567	106	return ret;
f64122c1 DA	107	}
	108
	109	static void
	110	qxl_pci_remove(struct pci_dev *pdev)
	111	{
	112	struct drm_device *dev = pci_get_drvdata(pdev);
6f897f51 GKB	113	struct qxl_device *qdev = dev->dev_private;
	114
	115	drm_dev_unregister(dev);
	116
	117	qxl_modeset_fini(qdev);
	118	qxl_device_fini(qdev);
f64122c1	119
6f897f51 GKB	120	dev->dev_private = NULL;
6f897f51 GKB	121	kfree(qdev);
b0d146ac	122	drm_dev_put(dev);
f64122c1 DA	123	}
f64122c1 DA	124
f64122c1 DA	125	static const struct file_operations qxl_fops = {
	126	.owner = THIS_MODULE,
	127	.open = drm_open,
	128	.release = drm_release,
	129	.unlocked_ioctl = drm_ioctl,
	130	.poll = drm_poll,
058e9f5c	131	.read = drm_read,
f64122c1 DA	132	.mmap = qxl_mmap,
	133	};
	134
d84300bf DA	135	static int qxl_drm_freeze(struct drm_device *dev)
	136	{
	137	struct pci_dev *pdev = dev->pdev;
	138	struct qxl_device *qdev = dev->dev_private;
7948a2b1	139	int ret;
d84300bf	140
7948a2b1 PW	141	ret = drm_mode_config_helper_suspend(dev);
	142	if (ret)
	143	return ret;
d84300bf DA	144
	145	qxl_destroy_monitors_object(qdev);
	146	qxl_surf_evict(qdev);
	147	qxl_vram_evict(qdev);
	148
	149	while (!qxl_check_idle(qdev->command_ring));
	150	while (!qxl_check_idle(qdev->release_ring))
	151	qxl_queue_garbage_collect(qdev, 1);
	152
	153	pci_save_state(pdev);
	154
	155	return 0;
	156	}
	157
	158	static int qxl_drm_resume(struct drm_device *dev, bool thaw)
	159	{
	160	struct qxl_device *qdev = dev->dev_private;
	161
	162	qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
	163	if (!thaw) {
	164	qxl_reinit_memslots(qdev);
	165	qxl_ring_init_hdr(qdev->release_ring);
	166	}
	167
	168	qxl_create_monitors_object(qdev);
7948a2b1	169	return drm_mode_config_helper_resume(dev);
d84300bf DA	170	}
	171
	172	static int qxl_pm_suspend(struct device *dev)
	173	{
	174	struct pci_dev *pdev = to_pci_dev(dev);
	175	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	176	int error;
	177
	178	error = qxl_drm_freeze(drm_dev);
	179	if (error)
	180	return error;
	181
	182	pci_disable_device(pdev);
	183	pci_set_power_state(pdev, PCI_D3hot);
	184	return 0;
	185	}
	186
	187	static int qxl_pm_resume(struct device *dev)
	188	{
	189	struct pci_dev *pdev = to_pci_dev(dev);
	190	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	191
	192	pci_set_power_state(pdev, PCI_D0);
	193	pci_restore_state(pdev);
	194	if (pci_enable_device(pdev)) {
	195	return -EIO;
	196	}
	197
	198	return qxl_drm_resume(drm_dev, false);
	199	}
	200
	201	static int qxl_pm_thaw(struct device *dev)
	202	{
	203	struct pci_dev *pdev = to_pci_dev(dev);
	204	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	205
	206	return qxl_drm_resume(drm_dev, true);
	207	}
	208
	209	static int qxl_pm_freeze(struct device *dev)
	210	{
	211	struct pci_dev *pdev = to_pci_dev(dev);
	212	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	213
	214	return qxl_drm_freeze(drm_dev);
	215	}
	216
	217	static int qxl_pm_restore(struct device *dev)
	218	{
	219	struct pci_dev *pdev = to_pci_dev(dev);
	220	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	221	struct qxl_device *qdev = drm_dev->dev_private;
	222
	223	qxl_io_reset(qdev);
	224	return qxl_drm_resume(drm_dev, false);
	225	}
	226
	227	static const struct dev_pm_ops qxl_pm_ops = {
	228	.suspend = qxl_pm_suspend,
	229	.resume = qxl_pm_resume,
	230	.freeze = qxl_pm_freeze,
	231	.thaw = qxl_pm_thaw,
	232	.poweroff = qxl_pm_freeze,
	233	.restore = qxl_pm_restore,
234	};
235	static struct pci_driver qxl_pci_driver = {
236	.name = DRIVER_NAME,
237	.id_table = pciidlist,
238	.probe = qxl_pci_probe,
239	.remove = qxl_pci_remove,
240	.driver.pm = &qxl_pm_ops,
241	};
242
f64122c1	243	static struct drm_driver qxl_driver = {
47c12968	244	.driver_features = DRIVER_GEM \| DRIVER_MODESET \| DRIVER_PRIME \|
fb4fe33f GKB	245	DRIVER_HAVE_IRQ \| DRIVER_IRQ_SHARED \|
fb4fe33f GKB	246	DRIVER_ATOMIC,
f64122c1 DA	247
	248	.dumb_create = qxl_mode_dumb_create,
	249	.dumb_map_offset = qxl_mode_dumb_mmap,
f64122c1 DA	250	#if defined(CONFIG_DEBUG_FS)
f64122c1 DA	251	.debugfs_init = qxl_debugfs_init,
f64122c1	252	#endif
47c12968 AP	253	.gem_prime_export = drm_gem_prime_export,
	254	.gem_prime_import = drm_gem_prime_import,
	255	.gem_prime_pin = qxl_gem_prime_pin,
	256	.gem_prime_unpin = qxl_gem_prime_unpin,
47c12968 AP	257	.gem_prime_vmap = qxl_gem_prime_vmap,
	258	.gem_prime_vunmap = qxl_gem_prime_vunmap,
	259	.gem_prime_mmap = qxl_gem_prime_mmap,
9f4eebd7	260	.gem_free_object_unlocked = qxl_gem_object_free,
f64122c1 DA	261	.gem_open_object = qxl_gem_object_open,
	262	.gem_close_object = qxl_gem_object_close,
	263	.fops = &qxl_fops,
	264	.ioctls = qxl_ioctls,
	265	.irq_handler = qxl_irq_handler,
	266	.name = DRIVER_NAME,
	267	.desc = DRIVER_DESC,
	268	.date = DRIVER_DATE,
	269	.major = 0,
	270	.minor = 1,
	271	.patchlevel = 0,
	272	};
	273
	274	static int __init qxl_init(void)
	275	{
f64122c1 DA	276	if (vgacon_text_force() && qxl_modeset == -1)
f64122c1 DA	277	return -EINVAL;
f64122c1 DA	278
	279	if (qxl_modeset == 0)
	280	return -EINVAL;
	281	qxl_driver.num_ioctls = qxl_max_ioctls;
10631d72	282	return pci_register_driver(&qxl_pci_driver);
f64122c1 DA	283	}
	284
	285	static void __exit qxl_exit(void)
	286	{
10631d72	287	pci_unregister_driver(&qxl_pci_driver);
f64122c1 DA	288	}
	289
	290	module_init(qxl_init);
	291	module_exit(qxl_exit);
	292
	293	MODULE_AUTHOR(DRIVER_AUTHOR);
	294	MODULE_DESCRIPTION(DRIVER_DESC);
	295	MODULE_LICENSE("GPL and additional rights");