From 7ae669665698b72d81e2080ebb220dfad49248dc Mon Sep 17 00:00:00 2001 From: Markos Chandras Date: Thu, 9 Jan 2014 16:01:29 +0000 Subject: [PATCH] MIPS: asm: cpu: Add cpu flag for Enhanced Virtual Addressing The MIPS *Aptiv family uses bit 28 in Config5 CP0 register to indicate whether the core supports EVA or not. Signed-off-by: Markos Chandras --- arch/mips/include/asm/cpu-features.h | 4 +++- arch/mips/include/asm/cpu.h | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 390795d..f56cc97 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -26,7 +26,9 @@ #ifndef cpu_has_segments #define cpu_has_segments (cpu_data[0].options & MIPS_CPU_SEGMENTS) #endif - +#ifndef cpu_has_eva +#define cpu_has_eva (cpu_data[0].options & MIPS_CPU_EVA) +#endif /* * For the moment we don't consider R6000 and R8000 so we can assume that diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index 93c2a0e..c12d997 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -359,6 +359,7 @@ enum cpu_type_enum { #define MIPS_CPU_MICROMIPS 0x01000000 /* CPU has microMIPS capability */ #define MIPS_CPU_TLBINV 0x02000000 /* CPU supports TLBINV/F */ #define MIPS_CPU_SEGMENTS 0x04000000 /* CPU supports Segmentation Control registers */ +#define MIPS_CPU_EVA 0x80000000 /* CPU supports Enhanced Virtual Addressing */ /* * CPU ASE encodings -- 2.7.4