commit ee80f7c73dc1b1f0ba9f82079c9bd1c0d1aedef8
author Steven J. Hill <sjhill@mips.com> Fri Aug 03 10:26:04 2012 -0500
committer Ralf Baechle <ralf@linux-mips.org> Thu Oct 11 11:05:03 2012 +0200
tree ef49eefa2ae08e015ebe526d10f81c7fe477d610
parent f59a2d22a05272034e856b7a2dd7a3ab7864a2ae

MIPS: Add detection of DSP ASE Revision 2.

[ralf@linux-mips.org: This patch really only detects the ASE and passes its
existence on to userland via /proc/cpuinfo.  The DSP ASE Rev 2. adds new
resources but no resources that would need management by the kernel.]

Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4165/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/cpu-probe.c

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index bd28096..b1fb7af 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -142,7 +142,7 @@
 
 static int __init dsp_disable(char *s)
 {
-	cpu_data[0].ases &= ~MIPS_ASE_DSP;
+	cpu_data[0].ases &= ~(MIPS_ASE_DSP | MIPS_ASE_DSP2P);
 	mips_dsp_disabled = 1;
 
 	return 1;
@@ -429,6 +429,8 @@
 		c->options |= MIPS_CPU_RIXI;
 	if (config3 & MIPS_CONF3_DSP)
 		c->ases |= MIPS_ASE_DSP;
+	if (config3 & MIPS_CONF3_DSP2P)
+		c->ases |= MIPS_ASE_DSP2P;
 	if (config3 & MIPS_CONF3_VINT)
 		c->options |= MIPS_CPU_VINT;
 	if (config3 & MIPS_CONF3_VEIC)
@@ -1180,7 +1182,7 @@
 		c->options &= ~MIPS_CPU_FPU;
 
 	if (mips_dsp_disabled)
-		c->ases &= ~MIPS_ASE_DSP;
+		c->ases &= ~(MIPS_ASE_DSP | MIPS_ASE_DSP2P);
 
 	if (c->options & MIPS_CPU_FPU) {
 		c->fpu_id = cpu_get_fpu_id();