audio: move more code to DRAM #9880
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lyakh
requested review from
RanderWang,
abonislawski,
dbaluta,
kv2019i,
lbetlej,
lgirdwood,
mmaka1,
pblaszko and
plbossart
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kv2019i
approved these changes
Mar 12, 2025
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@lgirdwood it depends of course on the configuration - which modules you build. E.g. https://github.com/thesofproject/sof/actions/runs/13813419824/job/38640360345?pr=9880#step:8:833 tells that the cold module has 0x74fc bytes of text and 0x4d964 bytes of data, without that it would stay in the base firmware and occupy SRAM. The largest part of that is SRC coefficients. And there's one caveat - with a purely SRAM build all coefficients would be in SRAM, but with a DRAM build coefficients are copied on demand. So it isn't a complete saving. Best case SRAM is used in pass-through, then nothing is copied IIRC (or extremely little). However, if you have several SRCs running in parallel with different conversions, then those respective tables are copied, so the saving is smaller. |
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Just the build time info is enough - i.e. what is the increase in DRAM usage for text/data |
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@lgirdwood right, then 0x74fc bytes text + 0x4d964 bytes read-only data |
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lgirdwood
approved these changes
Mar 13, 2025
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Fix several return codes, a preprocessor conditional, and simplify a function. Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Clarify which methods in struct comp_ops can and which cannot be marked as __cold. Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
The base firmware code is never executed on hot paths, mark it all as "cold." Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Add __cold qualifiers to IPC context functions. Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Add __cold qualifiers and debugging tests to IPC context functions. Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Add __cold qualifiers and debugging tests to non-performance critical code. Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
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SOFCI TEST |
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PTL results were missing, retest. |
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IPC response time comparison report on 24th Mar 2025 for PR 9880 The test concists of two SW configurations and two tests sequences and The SW configureations are SOF main (1ef4e60) built with |
abonislawski
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Mar 25, 2025
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Please just retest on PTL CI with cold enabled now
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@lgirdwood would make sense, yes and best also until after DRAM debugging is merged |
lgirdwood
approved these changes
Mar 31, 2025
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re-test after all the merges |
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SOFCI TEST |
lgirdwood
approved these changes
Apr 2, 2025
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I just add these number here as I needed to run couple of more test |
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DAI, host and copier code is always hard linked into the base firmware image, never as loadable modules. Move a large part of non-performance critical code to DRAM