diff options
| author | Paul Burton <paul.burton@imgtec.com> | 2014-09-11 09:30:18 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-11-24 07:45:06 +0100 |
| commit | adac5d535d4e364324b92798bfb68336197e815e (patch) | |
| tree | 221874e584f0e401bdce8cd10066307779bd5277 /arch/mips/kernel/cpu-probe.c | |
| parent | MIPS: define bits introduced for hybrid FPRs (diff) | |
| download | linux-adac5d535d4e364324b92798bfb68336197e815e.tar.xz linux-adac5d535d4e364324b92798bfb68336197e815e.zip | |
MIPS: detect presence of the FRE & UFR bits
Detect the presence of the Config5 FRE & UFE bits, as indicated by the
FREP bit in FPIR. Record this as a CPU option bit, and provide a
cpu_has_fre macro to ease checking of that option bit.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7678/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index b27e7ffd1112..d76f189291bc 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -1317,6 +1317,8 @@ void cpu_probe(void) MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2)) { if (c->fpu_id & MIPS_FPIR_3D) c->ases |= MIPS_ASE_MIPS3D; + if (c->fpu_id & MIPS_FPIR_FREP) + c->options |= MIPS_CPU_FRE; } } |