Commit 3cc9fa7f authored Jul 27, 2015 by Paul Burton Committed by Ralf Baechle Sep 03, 2015

MIPS: Advertise MSA support via HWCAP when present

If MSA is supported by both the hardware & the kernel then advertise
that support to userland via the AT_HWCAP aux vector.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Matthew Fortune <matthew.fortune@imgtec.com>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-kernel@vger.kernel.org
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/10799/

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

parent 4c063034

arch/mips/kernel/cpu-probe.c

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -1531,6 +1531,7 @@ void cpu_probe(void)
	c->msa_id = cpu_get_msa_id();		c->msa_id = cpu_get_msa_id();
	WARN(c->msa_id & MSA_IR_WRPF,		WARN(c->msa_id & MSA_IR_WRPF,
	"Vector register partitioning unimplemented!");		"Vector register partitioning unimplemented!");
			elf_hwcap \|= HWCAP_MIPS_MSA;
	}		}

	cpu_probe_vmbits(c);		cpu_probe_vmbits(c);