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
  20 static inline void
  21 virtio_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
  30 static inline void
  31 virtio_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
  49 static inline void
  50 virtio_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
  62 #endif