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MIPS: Detect DSP v3 support

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DSPv3 is supported on all MIPSr6 systems which indicate support for DSPv2.

This doesn't require any changes to the kernel's handling of DSP
resources. The patch is to detect support and indicate it in /proc/cpuinfo

DSP v3 introduces a new instruction BPOSGE32C

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12918/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Zubair Lutfullah Kakakhel
2016-03-29 15:50:25 +01:00
committed by Ralf Baechle
parent 157b939470
commit b5a6455cde
4 changed files with 10 additions and 1 deletions
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4
arch/mips/include/asm/cpu-features.h
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@@ -307,6 +307,10 @@
#define cpu_has_dsp2 (cpu_data[0].ases & MIPS_ASE_DSP2P)
#endif
#ifndef cpu_has_dsp3
#define cpu_has_dsp3 (cpu_data[0].ases & MIPS_ASE_DSP3)
#endif
#ifndef cpu_has_mipsmt
#define cpu_has_mipsmt (cpu_data[0].ases & MIPS_ASE_MIPSMT)
#endif