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rt_data_queue_pop() holds the data queue spinlock while updating the ring
state, then calls rt_data_queue_len(). The length function tries to acquire
the same non-recursive spinlock again, causing an SMP deadlock when a pop
leaves the queue non-empty.
Add a private _data_queue_len_nolock() helper for callers which already hold
the queue lock. Keep the public rt_data_queue_len() protected by one spinlock
acquisition.
This does not change the public API, ABI, queue state transitions, low-water
mark wakeups, or event callback behavior.
Tested on a four-core Spacemit K1 with cyclic HDMI playback and by building the
SMP QEMU Virt64 RISC-V BSP with generic audio, Intel HDA and VirtIO Sound.
Signed-off-by: GuEe-GUI <[email protected]>
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Signed-off-by: ChuanN-sudo <[email protected]>
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Signed-off-by: ChuanN-sudo <[email protected]>
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Use "Test" instead of "Unit Testcases" to make string shorter.
Use uppercase to make it look more eye-catching.
Signed-off-by: Chen Wang <[email protected]>
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Also:
- Add "RT_" prefix for utest config options.
- Rename the case names to following the naming rule.
Signed-off-by: Chen Wang <[email protected]>
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int/rt_int32_t
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在没有定义FINSH_USING_SYMTAB时编译报错以及IPC及finsh启用时自动选择必要的功能
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Since the completion is used to sync with ISR mostly, we should set the
default semantic to ISR-safe. So most user will be happy and don't see
any weird behavior in their codes.
Changes:
- Added `rt_completion_wait_noisr` and
`rt_completion_wait_flags_noisr` functions in `completion.h`,
`completion_comm.c`, `completion_mp.c`, and `completion_up.c`.
- The new APIs allow waiting for completions in non-ISR contexts
while ensuring thread context safety.
- Existing documentation and comments were updated to clarify
usage contexts and emphasize restrictions on ISR usage.
Signed-off-by: Shell <[email protected]>
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"dlmodule.c". (#9093)
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* add all soft timer
* update wq
* add timer test
* shield LOG_D
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Signed-off-by: Shell <[email protected]>
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* [ipc] lockless rt_completion implementation
The new rt_completion implemented by lockless algorithm can improve timer resolution for up to ~12%, compare to sem IPC.
Signed-off-by: Shell <[email protected]>
* fixup: error
* remove useless changes
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Signed-off-by: Shell <[email protected]>
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无法恢复运行的错误 (#8839)
队列在 push 后查找挂起列表时使用了错误的挂起列表。
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fix workqueue bug
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Signed-off-by: xqyjlj <[email protected]>
Signed-off-by: Shell <[email protected]>
Co-authored-by: xqyjlj <[email protected]>
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Signed-off-by: Shell <[email protected]>
Co-authored-by: xqyjlj <[email protected]>
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Signed-off-by: Shell <[email protected]>
Co-authored-by: Shell <[email protected]>
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function declarations based on it (#7849)
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Signed-off-by: shell <[email protected]>
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* [DFS] prepare for dfs_v2. dfs_fd -> dfs_file; dfs_fnode -> dfs_vnode.
* [BSP] fix code analysis warning
* [smart] fix the pointer overflow.
* code format
* [smart] fix the lwp->lwp_obj checking.
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* ringbuffer size boost to 32bit
* 添加ringbuffer测试demo
related: #682
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Co-authored-by: Zxy <[email protected]>
Co-authored-by: Man, Jianting (Meco) <[email protected]>
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rt_ssize_t can give negative error code, which follows the unix style correctly
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* Synchronize the code of the rt mart branch to the master branch.
* TTY device
* Add lwP code from rt-smart
* Add vnode in DFS, but DFS will be re-write for rt-smart
* There are three libcpu for rt-smart:
* arm/cortex-a, arm/aarch64
* riscv64
Co-authored-by: Rbb666 <[email protected]>
Co-authored-by: zhkag <[email protected]>
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* [fix] Fix simulator compilation warnings
* Update bsp/simulator/rtconfig_project.h
Co-authored-by: Man, Jianting (Meco) <[email protected]>
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