1 /* 2 * Copyright (C) 2016 Google, Inc. 3 * 4 * This software is licensed under the terms of the GNU General Public 5 * License version 2, as published by the Free Software Foundation, and 6 * may be copied, distributed, and modified under those terms. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 */ 14 15 #ifndef ANDROID_INCLUDE_HARDWARE_GOLDFISH_SYNC_H 16 #define ANDROID_INCLUDE_HARDWARE_GOLDFISH_SYNC_H 17 18 #include <linux/ioctl.h> 19 #include <linux/types.h> 20 #include <sys/cdefs.h> 21 #include <fcntl.h> 22 23 // Make it conflict with ioctls that are not likely to be used 24 // in the emulator. 25 // 26 // '@' 00-0F linux/radeonfb.h conflict! 27 // '@' 00-0F drivers/video/aty/aty128fb.c conflict! 28 #define GOLDFISH_SYNC_IOC_MAGIC '@' 29 30 struct goldfish_sync_ioctl_info { 31 uint64_t host_glsync_handle_in; 32 uint64_t host_syncthread_handle_in; 33 int fence_fd_out; 34 }; 35 36 #define GOLDFISH_SYNC_IOC_QUEUE_WORK _IOWR(GOLDFISH_SYNC_IOC_MAGIC, 0, struct goldfish_sync_ioctl_info) 37 38 static __inline__ int goldfish_sync_open() { 39 return open("/dev/goldfish_sync", O_RDWR); 40 } 41 42 static __inline__ int goldfish_sync_close(int sync_fd) { 43 return close(sync_fd); 44 } 45 46 static __inline__ int goldfish_sync_queue_work(int goldfish_sync_fd, 47 uint64_t host_glsync, 48 uint64_t host_thread, 49 int* fd_out) { 50 51 struct goldfish_sync_ioctl_info info; 52 int err; 53 54 info.host_glsync_handle_in = host_glsync; 55 info.host_syncthread_handle_in = host_thread; 56 info.fence_fd_out = -1; 57 58 err = ioctl(goldfish_sync_fd, GOLDFISH_SYNC_IOC_QUEUE_WORK, &info); 59 60 if (fd_out) *fd_out = info.fence_fd_out; 61 62 return err; 63 } 64 65 #endif 66
