From: David Daney Date: Thu, 11 Dec 2008 23:33:25 +0000 (-0800) Subject: MIPS: Override assembler target architecture for octeon. X-Git-Tag: v3.12-rc1~16288^2~28 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=25c3000300163e2ebf68d94425088de35ead3d76;p=kernel%2Fkernel-generic.git MIPS: Override assembler target architecture for octeon. Gas from binutils 2.19 fails to compile some cop1 instructions with -march=octeon. Since the cop1 instructions are present in mips1, use that arch instead. This will be fixed in binutils 2.20. Signed-off-by: David Daney Signed-off-by: Ralf Baechle --- diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index 207d098..0417516 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -1028,6 +1028,8 @@ do { \ __asm__ __volatile__( \ ".set\tpush\n\t" \ ".set\treorder\n\t" \ + /* gas fails to assemble cfc1 for some archs (octeon).*/ \ + ".set\tmips1\n\t" \ "cfc1\t%0,"STR(source)"\n\t" \ ".set\tpop" \ : "=r" (__res)); \ diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index 757d48f..fb6f731 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/kernel/genex.S @@ -385,10 +385,14 @@ NESTED(nmi_handler, PT_SIZE, sp) .endm .macro __build_clear_fpe + .set push + /* gas fails to assemble cfc1 for some archs (octeon).*/ \ + .set mips1 cfc1 a1, fcr31 li a2, ~(0x3f << 12) and a2, a1 ctc1 a2, fcr31 + .set pop TRACE_IRQS_ON STI .endm