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List:       linux-mips-cvs
Subject:    MIPS: mipsregs.h: Add write_32bit_cp1_register()
From:       linux-mips () linux-mips ! org
Date:       2015-01-30 23:38:51
Message-ID: S27012358AbbA3Xi4nk9R3/20150130233856Z+548 () eddie ! linux-mips ! org
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Author: James Hogan <james.hogan@imgtec.com> Fri Jan 30 15:40:19 2015 +0000
Comitter: Ralf Baechle <ralf@linux-mips.org> Fri Jan 30 23:01:49 2015 +0100
Commit: 8c6de90ab7c259cd785896904b5ac12d8cf857a9
Gitweb: http://git.linux-mips.org/g/ralf/linux/8c6de90ab7c2
Branch: master

Add a write_32bit_cp1_register() macro to compliment the
read_32bit_cp1_register() macro. This is to abstract whether .set
hardfloat needs to be used based on GAS_HAS_SET_HARDFLOAT.

The implementation of _read_32bit_cp1_register() .sets mips1 due to
failure of gas v2.19 to assemble cfc1 for Octeon (see commit
25c300030016 ("MIPS: Override assembler target architecture for
octeon.")). I haven't copied this over to _write_32bit_cp1_register() as
I'm uncertain whether it applies to ctc1 too, or whether anybody cares
about that version of binutils any longer.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9172/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

---

 arch/mips/include/asm/mipsregs.h |   15 +++++++++++++++
 1 file changed, 15 insertions(+)

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