[PATCH 1/3] MIPS: Add new option for unique RI/XI exceptions

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From: Leonid Yegoshin <Leonid.Yegoshin@xxxxxxxxxx>

MIPSr5 added support for unique exception codes for the Read-Inhibit
and Execute-Inhibit exceptions.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@xxxxxxxxxx>
Signed-off-by: Markos Chandras <markos.chandras@xxxxxxxxxx>
---
 arch/mips/include/asm/cpu-features.h | 3 +++
 arch/mips/include/asm/cpu.h          | 1 +
 2 files changed, 4 insertions(+)

diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index 3b9768e92e9e..eeb5400ed4ee 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -32,6 +32,9 @@
 #ifndef cpu_has_htw
 #define cpu_has_htw		(cpu_data[0].options & MIPS_CPU_HTW)
 #endif
+#ifndef cpu_has_rixiex
+#define cpu_has_rixiex		(cpu_data[0].options & MIPS_CPU_RIXIEX)
+#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 8219c0a5f77e..be13f2879c84 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -364,6 +364,7 @@ enum cpu_type_enum {
 #define MIPS_CPU_SEGMENTS	0x04000000ull /* CPU supports Segmentation Control registers */
 #define MIPS_CPU_EVA		0x80000000ull /* CPU supports Enhanced Virtual Addressing */
 #define MIPS_CPU_HTW		0x100000000ull /* CPU support Hardware Page Table Walker */
+#define MIPS_CPU_RIXIEX		0x200000000ull /* CPU has unique exception codes for {Read, Execute}-Inhibit exceptions */
 
 /*
  * CPU ASE encodings
-- 
2.0.0



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