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| author | Alistair Popple <alistair@popple.id.au> | 2020-05-21 11:43:39 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-06-02 20:59:20 +1000 |
| commit | c63d688c3dabca973c5a7da73d17422ad13f3737 (patch) | |
| tree | 2150cb3765e3787393482767f8a5f36568afc480 /arch/powerpc | |
| parent | 43d0d37acbe40a9a93d9891ca670638cd22116b1 (diff) | |
| download | linux-c63d688c3dabca973c5a7da73d17422ad13f3737.tar.bz2 | |
powerpc/dt_cpu_ftrs: Enable Prefixed Instructions
Prefix instructions have their own FSCR bit which needs to be enabled
via a CPU feature. The kernel will save the FSCR for problem state but
it needs to be enabled initially.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200521014341.29095-6-alistair@popple.id.au
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/dt_cpu_ftrs.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c index 46a85584e20b..87a5d47415eb 100644 --- a/arch/powerpc/kernel/dt_cpu_ftrs.c +++ b/arch/powerpc/kernel/dt_cpu_ftrs.c @@ -634,6 +634,7 @@ static struct dt_cpu_feature_match __initdata {"vector-binary128", feat_enable, 0}, {"vector-binary16", feat_enable, 0}, {"wait-v3", feat_enable, 0}, + {"prefix-instructions", feat_enable, 0}, }; static bool __initdata using_dt_cpu_ftrs; |