audio: use zephyr/cache.h for cache flush/invalidate#10258
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kv2019i merged 1 commit intothesofproject:mainfrom Sep 26, 2025
Merged
audio: use zephyr/cache.h for cache flush/invalidate#10258kv2019i merged 1 commit intothesofproject:mainfrom
kv2019i merged 1 commit intothesofproject:mainfrom
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Pull Request Overview
This PR updates the audio subsystem to use Zephyr's native cache interface instead of the legacy rtos/cache.h. This change ensures the audio code can work in user-space contexts when enabled at build time.
Key changes include:
- Replacing legacy dcache_* functions with sys_cache_data_* equivalents
- Updating header includes to use zephyr/cache.h instead of rtos/cache.h
- Converting dcache_writeback_region to sys_cache_data_flush_range and dcache_invalidate_region to sys_cache_data_invd_range
Reviewed Changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| src/include/sof/audio/audio_stream.h | Updates cache writeback calls in audio_stream_writeback function |
| src/audio/copier/copier_ipcgtw.c | Adds zephyr/cache.h include and converts cache invalidate calls |
| src/audio/buffers/ring_buffer.c | Adds zephyr/cache.h include and updates all cache operations in ring buffer functions |
| src/audio/buffers/comp_buffer.c | Replaces rtos/cache.h with zephyr/cache.h and updates buffer_zero function |
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lyakh
reviewed
Sep 25, 2025
| dcache_writeback_region((__sparse_force void __sparse_cache *)buffer->addr, | ||
| tail_size); | ||
| sys_cache_data_flush_range((__sparse_force void __sparse_cache *)buffer->addr, | ||
| tail_size); |
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should we replace "rtos/cache.h" in this file too?
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D'oh, missed that. V2 uploaded to fix this.
Use Zephyr native cache interface instead of legacy rtos/cache.h. This ensures audio code is using interfaces that supports use from user-space (if enabled at build time). Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
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softwarecki
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lyakh
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Use Zephyr native cache interface instead of legacy rtos/cache.h. This ensures audio code is using interfaces that supports use from user-space (if enabled at build time).