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Code Issues Releases Wiki Activity

修复显示刷新线程的空指针问题 (#228)

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login 2023-04-05 00:53:35 +08:00 committed by GitHub
parent 083e89172f
commit 5d00b18528
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1 changed files with 5 additions and 3 deletions
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8
kernel/src/driver/video/video.c
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@ -65,10 +65,12 @@ int video_refresh_daemon(void *unused)
if (likely(video_refresh_target != NULL))
{
spin_lock(&daemon_refresh_lock);
memcpy((void *)video_frame_buffer_info.vaddr, (void *)video_refresh_target->vaddr,
video_refresh_target->size);
if (video_frame_buffer_info.vaddr != NULL)
memcpy((void *)video_frame_buffer_info.vaddr, (void *)video_refresh_target->vaddr,
video_refresh_target->size);
spin_unlock(&daemon_refresh_lock);
video_daemon_pcb->virtual_runtime = 0xfffff0000000; // 临时解决由于显示刷新进程的虚拟运行时间过大/过小，导致其不运行，或者一直运行的问题。将来应使用实时调度解决它
video_daemon_pcb->virtual_runtime =
0xfffff0000000; // 临时解决由于显示刷新进程的虚拟运行时间过大/过小，导致其不运行，或者一直运行的问题。将来应使用实时调度解决它
}
video_refresh_expire_jiffies = rs_timer_next_n_ms_jiffies(REFRESH_INTERVAL << 1);
}