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authorMarkos Chandras <markos.chandras@imgtec.com>2014-01-09 16:01:29 +0000
committerRalf Baechle <ralf@linux-mips.org>2014-03-26 23:09:18 +0100
commit7ae669665698b72d81e2080ebb220dfad49248dc (patch)
tree965a83cf1cbfd50ee06e23d29be5c4706430f0d0 /arch/mips/include
parent27b3db2031d3c293fd19ff99a6bd0752384db56f (diff)
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 <markos.chandras@imgtec.com>
Diffstat (limited to 'arch/mips/include')
-rw-r--r--arch/mips/include/asm/cpu-features.h4
-rw-r--r--arch/mips/include/asm/cpu.h1
2 files changed, 4 insertions, 1 deletions
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index 390795dfa2e..f56cc975b92 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 93c2a0e4424..c12d9978020 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