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authorPaul Burton <paul.burton@imgtec.com>2014-09-11 08:30:18 +0100
committerRalf Baechle <ralf@linux-mips.org>2014-11-24 07:45:06 +0100
commitadac5d535d4e364324b92798bfb68336197e815e (patch)
tree221874e584f0e401bdce8cd10066307779bd5277 /arch/mips/include/asm/cpu-features.h
parent5ff04a8433b0ff396c4adcc03fe7787e22f57cb1 (diff)
downloadtalos-obmc-linux-adac5d535d4e364324b92798bfb68336197e815e.tar.gz
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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-features.h')
-rw-r--r--arch/mips/include/asm/cpu-features.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index 3325f3eb248c..2897cfafcaf0 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -344,4 +344,8 @@
# define cpu_has_msa 0
#endif
+#ifndef cpu_has_fre
+# define cpu_has_fre (cpu_data[0].options & MIPS_CPU_FRE)
+#endif
+
#endif /* __ASM_CPU_FEATURES_H */
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