diff options
| author |   Paul Burton <paul.burton@imgtec.com> | 2014-07-11 16:47:14 +0100 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2014-08-02 00:06:45 +0200 |
| commit | 2a6cb6690f614b0cf4e1e06eb226c1e1374113e4 (patch) | |
| tree | 8b98d8224853cf28cba5927a3b9731c8d0505307 /arch/mips | |
| parent | MIPS: consistently clear MSA flags when starting & copying threads (diff) | |
| download | linux-dev-2a6cb6690f614b0cf4e1e06eb226c1e1374113e4.tar.xz linux-dev-2a6cb6690f614b0cf4e1e06eb226c1e1374113e4.zip | |
MIPS: Don't build MSA support unless it can be used
MSA requires that Status.FR == 1, so for MIPS32 tasks MSA can only be
used if CONFIG_MIPS_O32_FP64_SUPPORT is enabled. If it is not & the
kernel is 32bit, there's no point including support for MSA.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7310/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 5652bd4a9220..a159a8f70c8d 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2117,6 +2117,7 @@ config CPU_MICROMIPS config CPU_HAS_MSA bool "Support for the MIPS SIMD Architecture" depends on CPU_SUPPORTS_MSA + depends on 64BIT || MIPS_O32_FP64_SUPPORT default y help MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers |