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authorLeonid Yegoshin <Leonid.Yegoshin@imgtec.com>2014-07-15 14:09:55 +0100
committerRalf Baechle <ralf@linux-mips.org>2014-08-02 00:06:39 +0200
commit6ee729aa6c06c9bc2bc1dd27e809e8fe976a9e04 (patch)
tree778f59734a556faf313d6cefb3763c767cf14ade /arch/mips
parentf1014d1b79d0fde02befadb0ca9e4da08ef8d453 (diff)
downloadlinux-6ee729aa6c06c9bc2bc1dd27e809e8fe976a9e04.tar.bz2
MIPS: Add new option for unique RI/XI exceptions
MIPSr5 added support for unique exception codes for the Read-Inhibit and Execute-Inhibit exceptions. Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7338/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/include/asm/cpu-features.h3
-rw-r--r--arch/mips/include/asm/cpu.h1
2 files changed, 4 insertions, 0 deletions
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 ec6a0f964d6a..7ba2a035ad86 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -366,6 +366,7 @@ 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