LXR linux/drivers/gpu/drm/qxl/qxl

   1/*
   2 * Copyright 2014 Canonical
   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: Andreas Pokorny
  23 */
  24
  25#include "qxl_drv.h"
  26#include "qxl_object.h"
  27
  28/* Empty Implementations as there should not be any other driver for a virtual
  29 * device that might share buffers with qxl */
  30
  31int qxl_gem_prime_pin(struct drm_gem_object *obj)
  32{
  33        struct qxl_bo *bo = gem_to_qxl_bo(obj);
  34
  35        return qxl_bo_pin(bo);
  36}
  37
  38void qxl_gem_prime_unpin(struct drm_gem_object *obj)
  39{
  40        struct qxl_bo *bo = gem_to_qxl_bo(obj);
  41
  42        qxl_bo_unpin(bo);
  43}
  44
  45struct sg_table *qxl_gem_prime_get_sg_table(struct drm_gem_object *obj)
  46{
  47        return ERR_PTR(-ENOSYS);
  48}
  49
  50struct drm_gem_object *qxl_gem_prime_import_sg_table(
  51        struct drm_device *dev, struct dma_buf_attachment *attach,
  52        struct sg_table *table)
  53{
  54        return ERR_PTR(-ENOSYS);
  55}
  56
  57void *qxl_gem_prime_vmap(struct drm_gem_object *obj)
  58{
  59        struct qxl_bo *bo = gem_to_qxl_bo(obj);
  60        void *ptr;
  61        int ret;
  62
  63        ret = qxl_bo_kmap(bo, &ptr);
  64        if (ret < 0)
  65                return ERR_PTR(ret);
  66
  67        return ptr;
  68}
  69
  70void qxl_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
  71{
  72        struct qxl_bo *bo = gem_to_qxl_bo(obj);
  73
  74        qxl_bo_kunmap(bo);
  75}
  76
  77int qxl_gem_prime_mmap(struct drm_gem_object *obj,
  78                       struct vm_area_struct *area)
  79{
  80        return -ENOSYS;
  81}
  82