[linux.git] / drivers / gpu / drm / ast / ast_drv.c

/*
 * Copyright 2012 Red Hat Inc.
 *
 * 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS, AUTHORS 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.
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 */
/*
 * Authors: Dave Airlie <[email protected]>
 */
#include <linux/module.h>
#include <linux/console.h>

#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>

#include "ast_drv.h"

int ast_modeset = -1;

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

#define PCI_VENDOR_ASPEED 0x1a03

static struct drm_driver driver;

#define AST_VGA_DEVICE(id, info) {		\
	.class = PCI_BASE_CLASS_DISPLAY << 16,	\
	.class_mask = 0xff0000,			\
	.vendor = PCI_VENDOR_ASPEED,			\
	.device = id,				\
	.subvendor = PCI_ANY_ID,		\
	.subdevice = PCI_ANY_ID,		\
	.driver_data = (unsigned long) info }

static const struct pci_device_id pciidlist[] = {
	AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
	AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
	/*	AST_VGA_DEVICE(PCI_CHIP_AST1180, NULL), - don't bind to 1180 for now */
	{0, 0, 0},
};

MODULE_DEVICE_TABLE(pci, pciidlist);

static void ast_kick_out_firmware_fb(struct pci_dev *pdev)
{
	struct apertures_struct *ap;
	bool primary = false;

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

	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, "astdrmfb", primary);
	kfree(ap);
}

static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	ast_kick_out_firmware_fb(pdev);

	return drm_get_pci_dev(pdev, ent, &driver);
}

static void
ast_pci_remove(struct pci_dev *pdev)
{
	struct drm_device *dev = pci_get_drvdata(pdev);

	drm_put_dev(dev);
}


static int ast_drm_freeze(struct drm_device *dev)
{
	drm_kms_helper_poll_disable(dev);

	pci_save_state(dev->pdev);

	console_lock();
	ast_fbdev_set_suspend(dev, 1);
	console_unlock();
	return 0;
}

static int ast_drm_thaw(struct drm_device *dev)
{
	int error = 0;

	ast_post_gpu(dev);

	drm_mode_config_reset(dev);
	drm_helper_resume_force_mode(dev);

	console_lock();
	ast_fbdev_set_suspend(dev, 0);
	console_unlock();
	return error;
}

static int ast_drm_resume(struct drm_device *dev)
{
	int ret;

	if (pci_enable_device(dev->pdev))
		return -EIO;

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

	drm_kms_helper_poll_enable(dev);
	return 0;
}

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

	error = ast_drm_freeze(ddev);
	if (error)
		return error;

	pci_disable_device(pdev);
	pci_set_power_state(pdev, PCI_D3hot);
	return 0;
}
static int ast_pm_resume(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *ddev = pci_get_drvdata(pdev);
	return ast_drm_resume(ddev);
}

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

	if (!ddev || !ddev->dev_private)
		return -ENODEV;
	return ast_drm_freeze(ddev);

}

static int ast_pm_thaw(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *ddev = pci_get_drvdata(pdev);
	return ast_drm_thaw(ddev);
}

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

	return ast_drm_freeze(ddev);
}

static const struct dev_pm_ops ast_pm_ops = {
	.suspend = ast_pm_suspend,
	.resume = ast_pm_resume,
	.freeze = ast_pm_freeze,
	.thaw = ast_pm_thaw,
	.poweroff = ast_pm_poweroff,
	.restore = ast_pm_resume,
};

static struct pci_driver ast_pci_driver = {
	.name = DRIVER_NAME,
	.id_table = pciidlist,
	.probe = ast_pci_probe,
	.remove = ast_pci_remove,
	.driver.pm = &ast_pm_ops,
};

static const struct file_operations ast_fops = {
	.owner = THIS_MODULE,
	.open = drm_open,
	.release = drm_release,
	.unlocked_ioctl = drm_ioctl,
	.mmap = ast_mmap,
	.poll = drm_poll,
	.compat_ioctl = drm_compat_ioctl,
	.read = drm_read,
};

static struct drm_driver driver = {
	.driver_features = DRIVER_MODESET | DRIVER_GEM,

	.load = ast_driver_load,
	.unload = ast_driver_unload,

	.fops = &ast_fops,
	.name = DRIVER_NAME,
	.desc = DRIVER_DESC,
	.date = DRIVER_DATE,
	.major = DRIVER_MAJOR,
	.minor = DRIVER_MINOR,
	.patchlevel = DRIVER_PATCHLEVEL,

	.gem_free_object_unlocked = ast_gem_free_object,
	.dumb_create = ast_dumb_create,
	.dumb_map_offset = ast_dumb_mmap_offset,

};

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

	if (ast_modeset == 0)
		return -EINVAL;
	return pci_register_driver(&ast_pci_driver);
}
static void __exit ast_exit(void)
{
	pci_unregister_driver(&ast_pci_driver);
}

module_init(ast_init);
module_exit(ast_exit);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL and additional rights");
Commit	Line	Data
312fec14 DA	1	/*
	2	* Copyright 2012 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the
	6	* "Software"), to deal in the Software without restriction, including
	7	* without limitation the rights to use, copy, modify, merge, publish,
	8	* distribute, sub license, and/or sell copies of the Software, and to
	9	* permit persons to whom the Software is furnished to do so, subject to
	10	* the following conditions:
	11	*
	12	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	13	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	14	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	15	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
	16	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
	17	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
	18	* USE OR OTHER DEALINGS IN THE SOFTWARE.
	19	*
	20	* The above copyright notice and this permission notice (including the
	21	* next paragraph) shall be included in all copies or substantial portions
	22	* of the Software.
	23	*
	24	*/
	25	/*
	26	* Authors: Dave Airlie <[email protected]>
	27	*/
	28	#include <linux/module.h>
	29	#include <linux/console.h>
	30
760285e7 DH	31	#include <drm/drmP.h>
760285e7 DH	32	#include <drm/drm_crtc_helper.h>
312fec14 DA	33
	34	#include "ast_drv.h"
	35
	36	int ast_modeset = -1;
	37
	38	MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
	39	module_param_named(modeset, ast_modeset, int, 0400);
	40
	41	#define PCI_VENDOR_ASPEED 0x1a03
	42
	43	static struct drm_driver driver;
	44
	45	#define AST_VGA_DEVICE(id, info) { \
	46	.class = PCI_BASE_CLASS_DISPLAY << 16, \
	47	.class_mask = 0xff0000, \
	48	.vendor = PCI_VENDOR_ASPEED, \
	49	.device = id, \
	50	.subvendor = PCI_ANY_ID, \
	51	.subdevice = PCI_ANY_ID, \
	52	.driver_data = (unsigned long) info }
	53
9baa3c34	54	static const struct pci_device_id pciidlist[] = {
312fec14 DA	55	AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
	56	AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
	57	/* AST_VGA_DEVICE(PCI_CHIP_AST1180, NULL), - don't bind to 1180 for now */
	58	{0, 0, 0},
	59	};
	60
	61	MODULE_DEVICE_TABLE(pci, pciidlist);
	62
5478ad10 TZ	63	static void ast_kick_out_firmware_fb(struct pci_dev *pdev)
	64	{
	65	struct apertures_struct *ap;
	66	bool primary = false;
	67
	68	ap = alloc_apertures(1);
	69	if (!ap)
	70	return;
	71
	72	ap->ranges[0].base = pci_resource_start(pdev, 0);
	73	ap->ranges[0].size = pci_resource_len(pdev, 0);
	74
	75	#ifdef CONFIG_X86
	76	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
	77	#endif
	78	drm_fb_helper_remove_conflicting_framebuffers(ap, "astdrmfb", primary);
	79	kfree(ap);
	80	}
	81
56550d94	82	static int ast_pci_probe(struct pci_dev pdev, const struct pci_device_id ent)
312fec14	83	{
5478ad10 TZ	84	ast_kick_out_firmware_fb(pdev);
5478ad10 TZ	85
312fec14 DA	86	return drm_get_pci_dev(pdev, ent, &driver);
	87	}
	88
	89	static void
	90	ast_pci_remove(struct pci_dev *pdev)
	91	{
	92	struct drm_device *dev = pci_get_drvdata(pdev);
	93
	94	drm_put_dev(dev);
	95	}
	96
	97
	98
	99	static int ast_drm_freeze(struct drm_device *dev)
	100	{
	101	drm_kms_helper_poll_disable(dev);
	102
	103	pci_save_state(dev->pdev);
	104
	105	console_lock();
	106	ast_fbdev_set_suspend(dev, 1);
	107	console_unlock();
	108	return 0;
	109	}
	110
	111	static int ast_drm_thaw(struct drm_device *dev)
	112	{
	113	int error = 0;
	114
	115	ast_post_gpu(dev);
	116
	117	drm_mode_config_reset(dev);
312fec14	118	drm_helper_resume_force_mode(dev);
312fec14 DA	119
	120	console_lock();
	121	ast_fbdev_set_suspend(dev, 0);
	122	console_unlock();
	123	return error;
	124	}
	125
	126	static int ast_drm_resume(struct drm_device *dev)
	127	{
	128	int ret;
	129
	130	if (pci_enable_device(dev->pdev))
	131	return -EIO;
	132
	133	ret = ast_drm_thaw(dev);
	134	if (ret)
	135	return ret;
	136
	137	drm_kms_helper_poll_enable(dev);
	138	return 0;
	139	}
	140
	141	static int ast_pm_suspend(struct device *dev)
	142	{
	143	struct pci_dev *pdev = to_pci_dev(dev);
	144	struct drm_device *ddev = pci_get_drvdata(pdev);
	145	int error;
	146
	147	error = ast_drm_freeze(ddev);
	148	if (error)
	149	return error;
	150
	151	pci_disable_device(pdev);
	152	pci_set_power_state(pdev, PCI_D3hot);
	153	return 0;
	154	}
	155	static int ast_pm_resume(struct device *dev)
	156	{
	157	struct pci_dev *pdev = to_pci_dev(dev);
	158	struct drm_device *ddev = pci_get_drvdata(pdev);
	159	return ast_drm_resume(ddev);
	160	}
	161
	162	static int ast_pm_freeze(struct device *dev)
	163	{
	164	struct pci_dev *pdev = to_pci_dev(dev);
	165	struct drm_device *ddev = pci_get_drvdata(pdev);
	166
	167	if (!ddev \|\| !ddev->dev_private)
	168	return -ENODEV;
	169	return ast_drm_freeze(ddev);
	170
	171	}
	172
	173	static int ast_pm_thaw(struct device *dev)
	174	{
	175	struct pci_dev *pdev = to_pci_dev(dev);
	176	struct drm_device *ddev = pci_get_drvdata(pdev);
	177	return ast_drm_thaw(ddev);
	178	}
	179
	180	static int ast_pm_poweroff(struct device *dev)
	181	{
	182	struct pci_dev *pdev = to_pci_dev(dev);
183	struct drm_device *ddev = pci_get_drvdata(pdev);
184
185	return ast_drm_freeze(ddev);
186	}
187
188	static const struct dev_pm_ops ast_pm_ops = {
189	.suspend = ast_pm_suspend,
190	.resume = ast_pm_resume,
191	.freeze = ast_pm_freeze,
192	.thaw = ast_pm_thaw,
193	.poweroff = ast_pm_poweroff,
194	.restore = ast_pm_resume,
195	};
196
197	static struct pci_driver ast_pci_driver = {
198	.name = DRIVER_NAME,
199	.id_table = pciidlist,
200	.probe = ast_pci_probe,
201	.remove = ast_pci_remove,
202	.driver.pm = &ast_pm_ops,
203	};
204
205	static const struct file_operations ast_fops = {
206	.owner = THIS_MODULE,
207	.open = drm_open,
208	.release = drm_release,
209	.unlocked_ioctl = drm_ioctl,
210	.mmap = ast_mmap,
211	.poll = drm_poll,
804d74ab	212	.compat_ioctl = drm_compat_ioctl,
312fec14 DA	213	.read = drm_read,
	214	};
	215
	216	static struct drm_driver driver = {
28185647	217	.driver_features = DRIVER_MODESET \| DRIVER_GEM,
312fec14 DA	218
	219	.load = ast_driver_load,
	220	.unload = ast_driver_unload,
	221
	222	.fops = &ast_fops,
	223	.name = DRIVER_NAME,
	224	.desc = DRIVER_DESC,
	225	.date = DRIVER_DATE,
	226	.major = DRIVER_MAJOR,
	227	.minor = DRIVER_MINOR,
	228	.patchlevel = DRIVER_PATCHLEVEL,
	229
2e2d49a8	230	.gem_free_object_unlocked = ast_gem_free_object,
312fec14 DA	231	.dumb_create = ast_dumb_create,
312fec14 DA	232	.dumb_map_offset = ast_dumb_mmap_offset,
312fec14 DA	233
	234	};
	235
	236	static int __init ast_init(void)
	237	{
	238	if (vgacon_text_force() && ast_modeset == -1)
	239	return -EINVAL;
	240
	241	if (ast_modeset == 0)
	242	return -EINVAL;
10631d72	243	return pci_register_driver(&ast_pci_driver);
312fec14 DA	244	}
	245	static void __exit ast_exit(void)
	246	{
10631d72	247	pci_unregister_driver(&ast_pci_driver);
312fec14 DA	248	}
	249
	250	module_init(ast_init);
	251	module_exit(ast_exit);
	252
	253	MODULE_AUTHOR(DRIVER_AUTHOR);
	254	MODULE_DESCRIPTION(DRIVER_DESC);
	255	MODULE_LICENSE("GPL and additional rights");
	256