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MIPS: Fix write_gc0_* macros when writing zero

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The versions of the __write_{32,64}bit_gc0_register() macros for when
there is no virt support in the assembler use the "J" inline asm
constraint to allow integer zero, but this needs to be accompanied by
the "z" formatting string so that it turns into $0. Fix both macros to
do this.

Fixes: bad50d7925 ("MIPS: Fix VZ probe gas errors with binutils <2.24")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13289/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
James Hogan 2016-05-18 17:04:38 +01:00 committed by Ralf Baechle
parent 63a8802f4f
commit f03984ca4f
1 changed files with 2 additions and 2 deletions
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4
arch/mips/include/asm/mipsregs.h
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@ -1773,7 +1773,7 @@ do { \
__asm__ __volatile__( \
".set\tpush\n\t" \
".set\tnoat\n\t" \
"move\t$1, %0\n\t" \
"move\t$1, %z0\n\t" \
"# mtgc0\t$1, $%1, %2\n\t" \
".word\t(0x40610200 | %1 << 11 | %2)\n\t" \
".set\tpop" \
@ -1786,7 +1786,7 @@ do { \
__asm__ __volatile__( \
".set\tpush\n\t" \
".set\tnoat\n\t" \
"move\t$1, %0\n\t" \
"move\t$1, %z0\n\t" \
"# dmtgc0\t$1, $%1, %2\n\t" \
".word\t(0x40610300 | %1 << 11 | %2)\n\t" \
".set\tpop" \