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| author | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-27 14:46:29 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-08-01 03:15:04 +0200 |
| commit | bfbfc8a43c028fe3c77c00c4368890e004ca268e (patch) | |
| tree | 1da989af301dbafe5dfc460345a8ecc564c6ec22 /arch/powerpc | |
| parent | powerpc: Move cpu_has_feature() to a separate file (diff) | |
| download | linux-bfbfc8a43c028fe3c77c00c4368890e004ca268e.tar.xz linux-bfbfc8a43c028fe3c77c00c4368890e004ca268e.zip | |
powerpc: Add kconfig option to use jump labels for cpu/mmu_has_feature()
Add a kconfig option to control whether we use jump label for the
cpu/mmu_has_feature() checks. Currently this does nothing, but we will
enabled it in the subsequent patches.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/Kconfig.debug | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index 171047822b56..36d7e345f599 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -60,6 +60,15 @@ config CODE_PATCHING_SELFTEST depends on DEBUG_KERNEL default n +config JUMP_LABEL_FEATURE_CHECKS + bool "Enable use of jump label for cpu/mmu_has_feature()" + depends on JUMP_LABEL + default y + help + Selecting this options enables use of jump labels for some internal + feature checks. This should generate more optimal code for those + checks. + config FTR_FIXUP_SELFTEST bool "Run self-tests of the feature-fixup code" depends on DEBUG_KERNEL |