diff options
| author | Paul Burton <paul.burton@imgtec.com> | 2014-09-11 08:30:18 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-11-24 07:45:06 +0100 |
| commit | adac5d535d4e364324b92798bfb68336197e815e (patch) | |
| tree | 221874e584f0e401bdce8cd10066307779bd5277 /arch/mips/include/asm/cpu.h | |
| parent | 5ff04a8433b0ff396c4adcc03fe7787e22f57cb1 (diff) | |
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/include/asm/cpu.h')
| -rw-r--r-- | arch/mips/include/asm/cpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index dfdc77ed1839..11025bfbd8db 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -368,6 +368,7 @@ enum cpu_type_enum { #define MIPS_CPU_HTW 0x100000000ull /* CPU support Hardware Page Table Walker */ #define MIPS_CPU_RIXIEX 0x200000000ull /* CPU has unique exception codes for {Read, Execute}-Inhibit exceptions */ #define MIPS_CPU_MAAR 0x400000000ull /* MAAR(I) registers are present */ +#define MIPS_CPU_FRE 0x800000000ull /* FRE & UFE bits implemented */ /* * CPU ASE encodings |