[mirror_ubuntu-jammy-kernel.git] / drivers / gpu / drm / via / via_map.c

/*
 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
 * Copyright 2001-2003 S3 Graphics, 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, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
 * VIA, S3 GRAPHICS, 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.
 */

#include <linux/pci.h>

#include <drm/drm_device.h>
#include <drm/drm_vblank.h>
#include <drm/via_drm.h>

#include "via_drv.h"

static int via_do_init_map(struct drm_device *dev, drm_via_init_t *init)
{
	drm_via_private_t *dev_priv = dev->dev_private;

	DRM_DEBUG("\n");

	dev_priv->sarea = drm_legacy_getsarea(dev);
	if (!dev_priv->sarea) {
		DRM_ERROR("could not find sarea!\n");
		dev->dev_private = (void *)dev_priv;
		via_do_cleanup_map(dev);
		return -EINVAL;
	}

	dev_priv->fb = drm_legacy_findmap(dev, init->fb_offset);
	if (!dev_priv->fb) {
		DRM_ERROR("could not find framebuffer!\n");
		dev->dev_private = (void *)dev_priv;
		via_do_cleanup_map(dev);
		return -EINVAL;
	}
	dev_priv->mmio = drm_legacy_findmap(dev, init->mmio_offset);
	if (!dev_priv->mmio) {
		DRM_ERROR("could not find mmio region!\n");
		dev->dev_private = (void *)dev_priv;
		via_do_cleanup_map(dev);
		return -EINVAL;
	}

	dev_priv->sarea_priv =
	    (drm_via_sarea_t *) ((u8 *) dev_priv->sarea->handle +
				 init->sarea_priv_offset);

	dev_priv->agpAddr = init->agpAddr;

	via_init_futex(dev_priv);

	via_init_dmablit(dev);

	dev->dev_private = (void *)dev_priv;
	return 0;
}

int via_do_cleanup_map(struct drm_device *dev)
{
	via_dma_cleanup(dev);

	return 0;
}

int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	drm_via_init_t *init = data;

	DRM_DEBUG("\n");

	switch (init->func) {
	case VIA_INIT_MAP:
		return via_do_init_map(dev, init);
	case VIA_CLEANUP_MAP:
		return via_do_cleanup_map(dev);
	}

	return -EINVAL;
}

int via_driver_load(struct drm_device *dev, unsigned long chipset)
{
	drm_via_private_t *dev_priv;
	int ret = 0;

	dev_priv = kzalloc(sizeof(drm_via_private_t), GFP_KERNEL);
	if (dev_priv == NULL)
		return -ENOMEM;

	idr_init(&dev_priv->object_idr);
	dev->dev_private = (void *)dev_priv;

	dev_priv->chipset = chipset;

	pci_set_master(dev->pdev);

	ret = drm_vblank_init(dev, 1);
	if (ret) {
		kfree(dev_priv);
		return ret;
	}

	return 0;
}

void via_driver_unload(struct drm_device *dev)
{
	drm_via_private_t *dev_priv = dev->dev_private;

	idr_destroy(&dev_priv->object_idr);

	kfree(dev_priv);
}
Commit	Line	Data
22f579c6 DA	1	/*
	2	* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
	3	* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
	4	*
	5	* Permission is hereby granted, free of charge, to any person obtaining a
	6	* copy of this software and associated documentation files (the "Software"),
	7	* to deal in the Software without restriction, including without limitation
	8	* the rights to use, copy, modify, merge, publish, distribute, sub license,
	9	* and/or sell copies of the Software, and to permit persons to whom the
	10	* Software is furnished to do so, subject to the following conditions:
	11	*
	12	* The above copyright notice and this permission notice (including the
	13	* next paragraph) shall be included in all copies or substantial portions
	14	* of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	19	* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
	20	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	21	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	22	* DEALINGS IN THE SOFTWARE.
	23	*/
0005cbda	24
02c484a8 TZ	25	#include <linux/pci.h>
02c484a8 TZ	26
0005cbda	27	#include <drm/drm_device.h>
0005cbda	28	#include <drm/drm_vblank.h>
760285e7	29	#include <drm/via_drm.h>
0005cbda	30
22f579c6 DA	31	#include "via_drv.h"
22f579c6 DA	32
58c1e85a	33	static int via_do_init_map(struct drm_device dev, drm_via_init_t init)
22f579c6	34	{
92514243	35	drm_via_private_t *dev_priv = dev->dev_private;
22f579c6	36
3e684eae	37	DRM_DEBUG("\n");
22f579c6	38
9fc5cde7	39	dev_priv->sarea = drm_legacy_getsarea(dev);
22f579c6 DA	40	if (!dev_priv->sarea) {
	41	DRM_ERROR("could not find sarea!\n");
	42	dev->dev_private = (void *)dev_priv;
	43	via_do_cleanup_map(dev);
	44	return -EINVAL;
	45	}
	46
86c1fbd5	47	dev_priv->fb = drm_legacy_findmap(dev, init->fb_offset);
22f579c6 DA	48	if (!dev_priv->fb) {
	49	DRM_ERROR("could not find framebuffer!\n");
	50	dev->dev_private = (void *)dev_priv;
	51	via_do_cleanup_map(dev);
	52	return -EINVAL;
	53	}
86c1fbd5	54	dev_priv->mmio = drm_legacy_findmap(dev, init->mmio_offset);
22f579c6 DA	55	if (!dev_priv->mmio) {
	56	DRM_ERROR("could not find mmio region!\n");
	57	dev->dev_private = (void *)dev_priv;
	58	via_do_cleanup_map(dev);
	59	return -EINVAL;
	60	}
	61
	62	dev_priv->sarea_priv =
	63	(drm_via_sarea_t ) ((u8 ) dev_priv->sarea->handle +
	64	init->sarea_priv_offset);
	65
	66	dev_priv->agpAddr = init->agpAddr;
	67
b5e89ed5	68	via_init_futex(dev_priv);
92514243 DA	69
92514243 DA	70	via_init_dmablit(dev);
22f579c6 DA	71
	72	dev->dev_private = (void *)dev_priv;
	73	return 0;
	74	}
	75
58c1e85a	76	int via_do_cleanup_map(struct drm_device *dev)
22f579c6	77	{
92514243	78	via_dma_cleanup(dev);
22f579c6 DA	79
	80	return 0;
	81	}
	82
c153f45f	83	int via_map_init(struct drm_device dev, void data, struct drm_file *file_priv)
22f579c6	84	{
c153f45f	85	drm_via_init_t *init = data;
22f579c6	86
3e684eae	87	DRM_DEBUG("\n");
22f579c6	88
c153f45f	89	switch (init->func) {
22f579c6	90	case VIA_INIT_MAP:
c153f45f	91	return via_do_init_map(dev, init);
22f579c6 DA	92	case VIA_CLEANUP_MAP:
	93	return via_do_cleanup_map(dev);
	94	}
	95
	96	return -EINVAL;
	97	}
92514243	98
84b1fd10	99	int via_driver_load(struct drm_device *dev, unsigned long chipset)
92514243 DA	100	{
92514243 DA	101	drm_via_private_t *dev_priv;
ce65a44d	102	int ret = 0;
92514243	103
9a298b2a	104	dev_priv = kzalloc(sizeof(drm_via_private_t), GFP_KERNEL);
92514243	105	if (dev_priv == NULL)
20caafa6	106	return -ENOMEM;
92514243	107
ce020ea5	108	idr_init(&dev_priv->object_idr);
92514243 DA	109	dev->dev_private = (void *)dev_priv;
92514243 DA	110
689692e7	111	dev_priv->chipset = chipset;
92514243	112
466e69b8 DA	113	pci_set_master(dev->pdev);
466e69b8 DA	114
52440211 KP	115	ret = drm_vblank_init(dev, 1);
52440211 KP	116	if (ret) {
9a298b2a	117	kfree(dev_priv);
52440211 KP	118	return ret;
	119	}
	120
	121	return 0;
92514243 DA	122	}
92514243 DA	123
11b3c20b	124	void via_driver_unload(struct drm_device *dev)
92514243 DA	125	{
	126	drm_via_private_t *dev_priv = dev->dev_private;
	127
6de8a748	128	idr_destroy(&dev_priv->object_idr);
ce65a44d	129
9a298b2a	130	kfree(dev_priv);
92514243	131	}