Commit 9eaa9a82 authored Oct 17, 2016 by Paul Burton Committed by Ralf Baechle Jan 03, 2017

MIPS: Allow pre-r6 emulation on SMP MIPSr6 kernels



There's no reason for the pre-r6 instruction emulation code to be
limited to uniprocessor kernels. We already emulate atomic memory access
instructions in a way that works for SMP systems, and nothing else
should be affected. Remove the artificial limitation, allowing pre-r6
instruction emulation to be used with SMP kernels.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14410/


Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

parent 3b4b8239

arch/mips/Kconfig

+1 −3

Original line number	Diff line number	Diff line
		@@ -2288,7 +2288,7 @@ config MIPS_MT_FPAFF

		config MIPSR2_TO_R6_EMULATOR
		bool "MIPS R2-to-R6 emulator"
		depends on CPU_MIPSR6 && !SMP
		depends on CPU_MIPSR6
		default y
		help
		Choose this option if you want to run non-R6 MIPS userland code.
		@@ -2296,8 +2296,6 @@ config MIPSR2_TO_R6_EMULATOR
		default. You can enable it using the 'mipsr2emu' kernel option.
		The only reason this is a build-time option is to save ~14K from the
		final kernel image.
		comment "MIPS R2-to-R6 emulator is only available for UP kernels"
		depends on SMP && CPU_MIPSR6

		config MIPS_VPE_LOADER
		bool "VPE loader support."

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