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 } 28 29 static inline void 30 virtio_gpu_bswap_32(void *ptr, size_t size) 31 { 32 #ifdef HOST_WORDS_BIGENDIAN 33 34 size_t i; 35 struct virtio_gpu_ctrl_hdr *hdr = (struct virtio_gpu_ctrl_hdr *) ptr; 36 37 virtio_gpu_ctrl_hdr_bswap(hdr); 38 39 i = sizeof(struct virtio_gpu_ctrl_hdr); 40 while (i < size) { 41 le32_to_cpus((uint32_t *)(ptr + i)); 42 i = i + sizeof(uint32_t); 43 } 44 45 #endif 46 } 47 48 static inline void 49 virtio_gpu_t2d_bswap(struct virtio_gpu_transfer_to_host_2d *t2d) 50 { 51 virtio_gpu_ctrl_hdr_bswap(&t2d->hdr); 52 le32_to_cpus(&t2d->r.x); 53 le32_to_cpus(&t2d->r.y); 54 le32_to_cpus(&t2d->r.width); 55 le32_to_cpus(&t2d->r.height); 56 le64_to_cpus(&t2d->offset); 57 le32_to_cpus(&t2d->resource_id); 58 le32_to_cpus(&t2d->padding); 59 } 60 61 static inline void 62 virtio_gpu_create_blob_bswap(struct virtio_gpu_resource_create_blob *cblob) 63 { 64 virtio_gpu_ctrl_hdr_bswap(&cblob->hdr); 65 le32_to_cpus(&cblob->resource_id); 66 le32_to_cpus(&cblob->blob_flags); 67 le64_to_cpus(&cblob->size); 68 } 69 70 static inline void 71 virtio_gpu_scanout_blob_bswap(struct virtio_gpu_set_scanout_blob *ssb) 72 { 73 virtio_gpu_bswap_32(ssb, sizeof(*ssb) - sizeof(ssb->offsets[3])); 74 le32_to_cpus(&ssb->offsets[3]); 75 } 76 77 #endif 78