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MIPS: mark MSA experimental
In light of the commit 16f77de82f
(Revert "MIPS: Save/restore MSA
context around signals") the MSA support in the kernel is incomplete.
Until the replacement for the former sigcontext changes is agreed upon
and in tree, mark MSA experimental & disable it by default.
MSA is only implemented by one CPU supported by the kernel, the P5600.
The P5600 is a 32 bit core, and thus MSA can only be used when the
experimental CONFIG_MIPS_O32_FP64_SUPPORT option is enabled. Therefore
MSA is only being used in experimental settings anyway and this change
doesn't actually make any difference beyond clarifying the state of
MSA support.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7311/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -2115,10 +2115,9 @@ config CPU_MICROMIPS
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microMIPS ISA
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config CPU_HAS_MSA
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bool "Support for the MIPS SIMD Architecture"
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bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
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depends on CPU_SUPPORTS_MSA
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depends on 64BIT || MIPS_O32_FP64_SUPPORT
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default y
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help
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MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
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and a set of SIMD instructions to operate on them. When this option
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