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| author | James Hogan <james.hogan@imgtec.com> | 2016-06-09 13:13:04 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-07-24 12:45:00 +0200 |
| commit | e9cbf6299e306d6f2ff7b8fe7ac66059191b182f (patch) | |
| tree | 1a7e6a638abfd2e80281817b3a84c0e3752c218a /arch | |
| parent | 7bf0d5e8e643a05de2cca699ac29903b19010cc1 (diff) | |
| download | linux-e9cbf6299e306d6f2ff7b8fe7ac66059191b182f.tar.gz linux-e9cbf6299e306d6f2ff7b8fe7ac66059191b182f.tar.bz2 linux-e9cbf6299e306d6f2ff7b8fe7ac66059191b182f.zip | |
MIPS: Fix MSA asm warnings in control reg accessors
Building an MSA capable kernel with a toolchain that supports MSA
produces warnings such as this:
CC arch/mips/kernel/cpu-probe.o
{standard input}: Assembler messages:
{standard input}:4786: Warning: the `msa' extension requires 64-bit FPRs
This is due to ".set msa" without ".set fp=64" in the inline assembly of
control register accessors, since MSA requires the 64-bit FPU registers
(FR=1). Add the missing fp=64 in these functions to silence the
warnings.
Signed-off-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/13554/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/include/asm/msa.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/include/asm/msa.h b/arch/mips/include/asm/msa.h index ddf496cb2a2a..8967b475ab10 100644 --- a/arch/mips/include/asm/msa.h +++ b/arch/mips/include/asm/msa.h @@ -168,6 +168,7 @@ static inline unsigned int read_msa_##name(void) \ unsigned int reg; \ __asm__ __volatile__( \ " .set push\n" \ + " .set fp=64\n" \ " .set msa\n" \ " cfcmsa %0, $" #cs "\n" \ " .set pop\n" \ @@ -179,6 +180,7 @@ static inline void write_msa_##name(unsigned int val) \ { \ __asm__ __volatile__( \ " .set push\n" \ + " .set fp=64\n" \ " .set msa\n" \ " ctcmsa $" #cs ", %0\n" \ " .set pop\n" \ |