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MIPS: asmmacro: Ensure 64-bit FP registers are used with MSA 

This silences warnings like the following one when building with the
latest binutils:

arch/mips/kernel/genex.S: Assembler messages:
arch/mips/kernel/genex.S:438: Warning: the `msa' extension requires 64-bit FPRs

[ralf@linux-mips.org: Markos says binutils 2.25 and some 2.24 snapshots
are affected.]

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9745/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Markos Chandras 2015-04-16 11:05:59 +01:00 committed by Ralf Baechle
parent 590605c6bc
commit 2bd7bc254a
1 changed files with 11 additions and 0 deletions
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11
arch/mips/include/asm/asmmacro.h
View File

@ -211,9 +211,13 @@
.endm
#ifdef TOOLCHAIN_SUPPORTS_MSA
/* preprocessor replaces the fp in ".set fp=64" with $30 otherwise */
#undef fp
.macro _cfcmsa rd, cs
.set push
.set mips32r2
.set fp=64
.set msa
cfcmsa \rd, $\cs
.set pop
@ -222,6 +226,7 @@
.macro _ctcmsa cd, rs
.set push
.set mips32r2
.set fp=64
.set msa
ctcmsa $\cd, \rs
.set pop
@ -230,6 +235,7 @@
.macro ld_d wd, off, base
.set push
.set mips32r2
.set fp=64
.set msa
ld.d $w\wd, \off(\base)
.set pop
@ -238,6 +244,7 @@
.macro st_d wd, off, base
.set push
.set mips32r2
.set fp=64
.set msa
st.d $w\wd, \off(\base)
.set pop
@ -246,6 +253,7 @@
.macro copy_u_w ws, n
.set push
.set mips32r2
.set fp=64
.set msa
copy_u.w $1, $w\ws[\n]
.set pop
@ -254,6 +262,7 @@
.macro copy_u_d ws, n
.set push
.set mips64r2
.set fp=64
.set msa
copy_u.d $1, $w\ws[\n]
.set pop
@ -262,6 +271,7 @@
.macro insert_w wd, n
.set push
.set mips32r2
.set fp=64
.set msa
insert.w $w\wd[\n], $1
.set pop
@ -270,6 +280,7 @@
.macro insert_d wd, n
.set push
.set mips64r2
.set fp=64
.set msa
insert.d $w\wd[\n], $1
.set pop