LXR qemu/include/hw/virtio/virtio-gpu-bswap.h

   1/*
   2 * Virtio GPU Device
   3 *
   4 * Copyright Red Hat, Inc. 2013-2014
   5 *
   6 * Authors:
   7 *     Dave Airlie <airlied@redhat.com>
   8 *     Gerd Hoffmann <kraxel@redhat.com>
   9 *
  10 * This work is licensed under the terms of the GNU GPL, version 2 or later.
  11 * See the COPYING file in the top-level directory.
  12 */
  13
  14#ifndef HW_VIRTIO_GPU_BSWAP_H
  15#define HW_VIRTIO_GPU_BSWAP_H
  16
  17#include "qemu/bswap.h"
  18#include "standard-headers/linux/virtio_gpu.h"
  19
  20static inline void
  21virtio_gpu_ctrl_hdr_bswap(struct virtio_gpu_ctrl_hdr *hdr)
  22{
  23    le32_to_cpus(&hdr->type);
  24    le32_to_cpus(&hdr->flags);
  25    le64_to_cpus(&hdr->fence_id);
  26    le32_to_cpus(&hdr->ctx_id);
  27    le32_to_cpus(&hdr->padding);
  28}
  29
  30static inline void
  31virtio_gpu_bswap_32(void *ptr, size_t size)
  32{
  33#ifdef HOST_WORDS_BIGENDIAN
  34
  35    size_t i;
  36    struct virtio_gpu_ctrl_hdr *hdr = (struct virtio_gpu_ctrl_hdr *) ptr;
  37
  38    virtio_gpu_ctrl_hdr_bswap(hdr);
  39
  40    i = sizeof(struct virtio_gpu_ctrl_hdr);
  41    while (i < size) {
  42        le32_to_cpus((uint32_t *)(ptr + i));
  43        i = i + sizeof(uint32_t);
  44    }
  45
  46#endif
  47}
  48
  49static inline void
  50virtio_gpu_t2d_bswap(struct virtio_gpu_transfer_to_host_2d *t2d)
  51{
  52    virtio_gpu_ctrl_hdr_bswap(&t2d->hdr);
  53    le32_to_cpus(&t2d->r.x);
  54    le32_to_cpus(&t2d->r.y);
  55    le32_to_cpus(&t2d->r.width);
  56    le32_to_cpus(&t2d->r.height);
  57    le64_to_cpus(&t2d->offset);
  58    le32_to_cpus(&t2d->resource_id);
  59    le32_to_cpus(&t2d->padding);
  60}
  61
  62static inline void
  63virtio_gpu_create_blob_bswap(struct virtio_gpu_resource_create_blob *cblob)
  64{
  65    virtio_gpu_ctrl_hdr_bswap(&cblob->hdr);
  66    le32_to_cpus(&cblob->resource_id);
  67    le32_to_cpus(&cblob->blob_flags);
  68    le64_to_cpus(&cblob->size);
  69}
  70
  71static inline void
  72virtio_gpu_scanout_blob_bswap(struct virtio_gpu_set_scanout_blob *ssb)
  73{
  74    virtio_gpu_bswap_32(ssb, sizeof(*ssb) - sizeof(ssb->offsets[3]));
  75    le32_to_cpus(&ssb->offsets[3]);
  76}
  77
  78#endif
  79