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| author | Paul Burton <paul.burton@imgtec.com> | 2014-01-27 15:23:10 (GMT) |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-03-26 22:09:10 (GMT) |
| commit | a5e9a69e2cb64c15246291fdc0e27134b9cdce37 (patch) | |
| tree | 08526b5d7b97772290a00abaa36fe7df220bbfa9 /arch/mips/include/asm/cpu-features.h | |
| parent | 7f65afb97f279d9d02d0779384e8bd5ace064dea (diff) | |
| download | linux-a5e9a69e2cb64c15246291fdc0e27134b9cdce37.tar.xz | |
MIPS: Detect the MSA ASE
This patch adds support for probing the MSAP bit within the Config3
register in order to detect the presence of the MSA ASE. Presence of the
ASE will be indicated in /proc/cpuinfo. The value of the MSA
implementation register will be displayed at boot to aid debugging and
verification of a correct setup, as is done for the FPU.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6430/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/cpu-features.h')
| -rw-r--r-- | arch/mips/include/asm/cpu-features.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 6e70b03..390795d 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -299,4 +299,10 @@ #define cpu_has_vz (cpu_data[0].ases & MIPS_ASE_VZ) #endif +#if defined(CONFIG_CPU_HAS_MSA) && !defined(cpu_has_msa) +# define cpu_has_msa (cpu_data[0].ases & MIPS_ASE_MSA) +#elif !defined(cpu_has_msa) +# define cpu_has_msa 0 +#endif + #endif /* __ASM_CPU_FEATURES_H */ |