cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

qxl_dumb.c (2175B)

      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
     31int 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 = to_qxl(dev);
     36	struct qxl_bo *qobj;
     37	uint32_t handle;
     38	int r;
     39	struct qxl_surface surf;
     40	uint32_t pitch, format;
     41
     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	}
     56
     57	surf.width = args->width;
     58	surf.height = args->height;
     59	surf.stride = pitch;
     60	surf.format = format;
     61	surf.data = 0;
     62
     63	r = qxl_gem_object_create_with_handle(qdev, file_priv,
     64					      QXL_GEM_DOMAIN_CPU,
     65					      args->size, &surf, &qobj,
     66					      &handle);
     67	if (r)
     68		return r;
     69	qobj->is_dumb = true;
     70	args->pitch = pitch;
     71	args->handle = handle;
     72	return 0;
     73}