drm/qxl/qxl_dumb.c

0001 /*
0002  * Copyright 2013 Red Hat Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: Dave Airlie
0023  *          Alon Levy
0024  */
0025
0026 #include "qxl_drv.h"
0027 #include "qxl_object.h"
0028
0029 /* dumb ioctls implementation */
0030
0031 int qxl_mode_dumb_create(struct drm_file *file_priv,
0032                 struct drm_device *dev,
0033                 struct drm_mode_create_dumb *args)
0034 {
0035     struct qxl_device *qdev = to_qxl(dev);
0036     struct qxl_bo *qobj;
0037     uint32_t handle;
0038     int r;
0039     struct qxl_surface surf;
0040     uint32_t pitch, format;
0041
0042     pitch = args->width * ((args->bpp + 1) / 8);
0043     args->size = pitch * args->height;
0044     args->size = ALIGN(args->size, PAGE_SIZE);
0045
0046     switch (args->bpp) {
0047     case 16:
0048         format = SPICE_SURFACE_FMT_16_565;
0049         break;
0050     case 32:
0051         format = SPICE_SURFACE_FMT_32_xRGB;
0052         break;
0053     default:
0054         return -EINVAL;
0055     }
0056
0057     surf.width = args->width;
0058     surf.height = args->height;
0059     surf.stride = pitch;
0060     surf.format = format;
0061     surf.data = 0;
0062
0063     r = qxl_gem_object_create_with_handle(qdev, file_priv,
0064                           QXL_GEM_DOMAIN_CPU,
0065                           args->size, &surf, &qobj,
0066                           &handle);
0067     if (r)
0068         return r;
0069     qobj->is_dumb = true;
0070     args->pitch = pitch;
0071     args->handle = handle;
0072     return 0;
0073 }