[thirdparty/kernel/stable.git] / drivers / gpu / drm / qxl / qxl_dumb.c

/*
 * Copyright 2013 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, 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 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
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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
 *          Alon Levy
 */

#include "qxl_drv.h"
#include "qxl_object.h"

/* dumb ioctls implementation */

int qxl_mode_dumb_create(struct drm_file *file_priv,
			    struct drm_device *dev,
			    struct drm_mode_create_dumb *args)
{
	struct qxl_device *qdev = dev->dev_private;
	struct qxl_bo *qobj;
	uint32_t handle;
	int r;
	struct qxl_surface surf;
	uint32_t pitch, format;

	pitch = args->width * ((args->bpp + 1) / 8);
	args->size = pitch * args->height;
	args->size = ALIGN(args->size, PAGE_SIZE);

	switch (args->bpp) {
	case 16:
		format = SPICE_SURFACE_FMT_16_565;
		break;
	case 32:
		format = SPICE_SURFACE_FMT_32_xRGB;
		break;
	default:
		return -EINVAL;
	}

	surf.width = args->width;
	surf.height = args->height;
	surf.stride = pitch;
	surf.format = format;
	r = qxl_gem_object_create_with_handle(qdev, file_priv,
					      QXL_GEM_DOMAIN_SURFACE,
					      args->size, &surf, &qobj,
					      &handle);
	if (r)
		return r;
	qobj->is_dumb = true;
	args->pitch = pitch;
	args->handle = handle;
	return 0;
}

int qxl_mode_dumb_mmap(struct drm_file *file_priv,
		       struct drm_device *dev,
		       uint32_t handle, uint64_t *offset_p)
{
	struct drm_gem_object *gobj;
	struct qxl_bo *qobj;

	BUG_ON(!offset_p);
	gobj = drm_gem_object_lookup(file_priv, handle);
	if (gobj == NULL)
		return -ENOENT;
	qobj = gem_to_qxl_bo(gobj);
	*offset_p = qxl_bo_mmap_offset(qobj);
	drm_gem_object_put_unlocked(gobj);
	return 0;
}
Commit	Line	Data
f64122c1 DA	1	/*
	2	* Copyright 2013 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 "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* Authors: Dave Airlie
	23	* Alon Levy
	24	*/
	25
	26	#include "qxl_drv.h"
	27	#include "qxl_object.h"
	28
	29	/* dumb ioctls implementation */
	30
	31	int qxl_mode_dumb_create(struct drm_file *file_priv,
	32	struct drm_device *dev,
	33	struct drm_mode_create_dumb *args)
	34	{
	35	struct qxl_device *qdev = dev->dev_private;
	36	struct qxl_bo *qobj;
	37	uint32_t handle;
	38	int r;
	39	struct qxl_surface surf;
	40	uint32_t pitch, format;
408799eb	41
f64122c1 DA	42	pitch = args->width * ((args->bpp + 1) / 8);
	43	args->size = pitch * args->height;
	44	args->size = ALIGN(args->size, PAGE_SIZE);
	45
	46	switch (args->bpp) {
	47	case 16:
	48	format = SPICE_SURFACE_FMT_16_565;
	49	break;
	50	case 32:
	51	format = SPICE_SURFACE_FMT_32_xRGB;
	52	break;
	53	default:
	54	return -EINVAL;
	55	}
6ed00154	56
f64122c1 DA	57	surf.width = args->width;
	58	surf.height = args->height;
	59	surf.stride = pitch;
	60	surf.format = format;
	61	r = qxl_gem_object_create_with_handle(qdev, file_priv,
f3bc22f0	62	QXL_GEM_DOMAIN_SURFACE,
f64122c1 DA	63	args->size, &surf, &qobj,
	64	&handle);
	65	if (r)
	66	return r;
62676d10	67	qobj->is_dumb = true;
f64122c1 DA	68	args->pitch = pitch;
	69	args->handle = handle;
	70	return 0;
	71	}
	72
f64122c1 DA	73	int qxl_mode_dumb_mmap(struct drm_file *file_priv,
	74	struct drm_device *dev,
	75	uint32_t handle, uint64_t *offset_p)
	76	{
	77	struct drm_gem_object *gobj;
	78	struct qxl_bo *qobj;
	79
	80	BUG_ON(!offset_p);
a8ad0bd8	81	gobj = drm_gem_object_lookup(file_priv, handle);
f64122c1 DA	82	if (gobj == NULL)
	83	return -ENOENT;
	84	qobj = gem_to_qxl_bo(gobj);
	85	*offset_p = qxl_bo_mmap_offset(qobj);
2793c1d7	86	drm_gem_object_put_unlocked(gobj);
f64122c1 DA	87	return 0;
f64122c1 DA	88	}