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Commit 92e9953c authored by James Hogan's avatar James Hogan Committed by Ralf Baechle
Browse files

MIPS: Fix MSA assembly warnings 



Building an MSA capable kernel with a toolchain that supports MSA
produces warnings such as this:

arch/mips/kernel/r4k_fpu.S:229: Warning: the `msa' extension requires 64-bit FPRs

This is due to ".set msa" without ".set fp=64" in the non doubleword MSA
load/store macros, since MSA requires the 64-bit FPU registers (FR=1).
Add the missing fp=64 in these macros to silence the warnings.

Signed-off-by: default avatarJames 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/13063/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 143e93d7

arch/mips/include/asm/asmmacro.h

+6 −0
Original line number Diff line number Diff line
@@ -235,6 +235,7 @@ 
	.macro	ld_b	wd, off, base

	.set	push

	.set	mips32r2

	.set	fp=64

	.set	msa

	ld.b	$w\wd, \off(\base)

	.set	pop
@@ -243,6 +244,7 @@ 
	.macro	ld_h	wd, off, base

	.set	push

	.set	mips32r2

	.set	fp=64

	.set	msa

	ld.h	$w\wd, \off(\base)

	.set	pop
@@ -251,6 +253,7 @@ 
	.macro	ld_w	wd, off, base

	.set	push

	.set	mips32r2

	.set	fp=64

	.set	msa

	ld.w	$w\wd, \off(\base)

	.set	pop
@@ -268,6 +271,7 @@ 
	.macro	st_b	wd, off, base

	.set	push

	.set	mips32r2

	.set	fp=64

	.set	msa

	st.b	$w\wd, \off(\base)

	.set	pop
@@ -276,6 +280,7 @@ 
	.macro	st_h	wd, off, base

	.set	push

	.set	mips32r2

	.set	fp=64

	.set	msa

	st.h	$w\wd, \off(\base)

	.set	pop
@@ -284,6 +289,7 @@ 
	.macro	st_w	wd, off, base

	.set	push

	.set	mips32r2

	.set	fp=64

	.set	msa

	st.w	$w\wd, \off(\base)

	.set	pop