mirror of https://gitee.com/openkylin/linux.git
94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
/*
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* Copyright 2013 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Dave Airlie
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* Alon Levy
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*/
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#include "qxl_drv.h"
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#include "qxl_object.h"
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/* dumb ioctls implementation */
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int qxl_mode_dumb_create(struct drm_file *file_priv,
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struct drm_device *dev,
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struct drm_mode_create_dumb *args)
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{
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struct qxl_device *qdev = dev->dev_private;
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struct qxl_bo *qobj;
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uint32_t handle;
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int r;
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struct qxl_surface surf;
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uint32_t pitch, format;
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pitch = args->width * ((args->bpp + 1) / 8);
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args->size = pitch * args->height;
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args->size = ALIGN(args->size, PAGE_SIZE);
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switch (args->bpp) {
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case 16:
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format = SPICE_SURFACE_FMT_16_565;
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break;
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case 32:
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format = SPICE_SURFACE_FMT_32_xRGB;
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break;
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default:
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return -EINVAL;
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}
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surf.width = args->width;
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surf.height = args->height;
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surf.stride = pitch;
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surf.format = format;
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r = qxl_gem_object_create_with_handle(qdev, file_priv,
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QXL_GEM_DOMAIN_VRAM,
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args->size, &surf, &qobj,
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&handle);
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if (r)
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return r;
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args->pitch = pitch;
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args->handle = handle;
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return 0;
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}
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int qxl_mode_dumb_destroy(struct drm_file *file_priv,
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struct drm_device *dev,
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uint32_t handle)
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{
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return drm_gem_handle_delete(file_priv, handle);
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}
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int qxl_mode_dumb_mmap(struct drm_file *file_priv,
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struct drm_device *dev,
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uint32_t handle, uint64_t *offset_p)
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{
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struct drm_gem_object *gobj;
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struct qxl_bo *qobj;
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BUG_ON(!offset_p);
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gobj = drm_gem_object_lookup(dev, file_priv, handle);
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if (gobj == NULL)
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return -ENOENT;
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qobj = gem_to_qxl_bo(gobj);
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*offset_p = qxl_bo_mmap_offset(qobj);
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drm_gem_object_unreference_unlocked(gobj);
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return 0;
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}
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