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| author | Michal Suchanek <msuchanek@suse.de> | 2018-04-24 06:15:57 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-06-03 12:43:45 +0200 |
| commit | cb3d6759a93c6d0aea1c10deb6d00e111c29c19c (patch) | |
| tree | 7437d3e50f9ce967c0da85868121dee80f5afa3f /arch/powerpc/include/asm/setup.h | |
| parent | powerpc/64s: Patch barrier_nospec in modules (diff) | |
| download | linux-cb3d6759a93c6d0aea1c10deb6d00e111c29c19c.tar.xz linux-cb3d6759a93c6d0aea1c10deb6d00e111c29c19c.zip | |
powerpc/64s: Enable barrier_nospec based on firmware settings
Check what firmware told us and enable/disable the barrier_nospec as
appropriate.
We err on the side of enabling the barrier, as it's no-op on older
systems, see the comment for more detail.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/setup.h')
| -rw-r--r-- | arch/powerpc/include/asm/setup.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h index a24c3c9053cc..8721fd004291 100644 --- a/arch/powerpc/include/asm/setup.h +++ b/arch/powerpc/include/asm/setup.h @@ -52,6 +52,7 @@ enum l1d_flush_type { void setup_rfi_flush(enum l1d_flush_type, bool enable); void do_rfi_flush_fixups(enum l1d_flush_type types); +void setup_barrier_nospec(void); void do_barrier_nospec_fixups(bool enable); extern bool barrier_nospec_enabled; |