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soc: intel_adsp/ace: use CONFIG_XTENSA_MORE_SPIN_RELAX_NOPS

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This enables the use of CONFIG_XTENSA_MORE_SPIN_RELAX_NOPS to
specify how many NOPs for arch_spin_relax(). This is to keep
the atomic_cas() (via s32c1i) from saturating the internal bus
with contant RCW ops. The numbers should be further tuned
for specific application but these should provide a good start.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2024-03-06 07:18:38 -08:00 committed by Carles Cufí
parent 7b9349405c
commit 223e81b968
1 changed files with 14 additions and 0 deletions
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14
soc/intel/intel_adsp/ace/Kconfig.defconfig.series
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@ -60,6 +60,20 @@ config LOG_BACKEND_ADSP
endif # LOG
config XTENSA_MORE_SPIN_RELAX_NOPS
default y if SMP && MP_MAX_NUM_CPUS > 1
if XTENSA_MORE_SPIN_RELAX_NOPS
config XTENSA_NUM_SPIN_RELAX_NOPS
default 32 if MP_MAX_NUM_CPUS = 1
default 64 if MP_MAX_NUM_CPUS = 2
default 96 if MP_MAX_NUM_CPUS = 3
default 128 if MP_MAX_NUM_CPUS = 4
default 160 if MP_MAX_NUM_CPUS = 5
endif # XTENSA_MORE_SPIN_RELAX_NOPS
rsource "Kconfig.defconfig.ace*"
endif # SOC_SERIES_INTEL_ADSP_ACE