diff options
| author | Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> | 2014-07-15 15:09:55 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-08-02 00:06:39 +0200 |
| commit | 6ee729aa6c06c9bc2bc1dd27e809e8fe976a9e04 (patch) | |
| tree | 778f59734a556faf313d6cefb3763c767cf14ade /arch/mips | |
| parent | MIPS: mm: Use the Hardware Page Table Walker if the core supports it (diff) | |
| download | linux-6ee729aa6c06c9bc2bc1dd27e809e8fe976a9e04.tar.xz linux-6ee729aa6c06c9bc2bc1dd27e809e8fe976a9e04.zip | |
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.h | 3 | ||||
| -rw-r--r-- | arch/mips/include/asm/cpu.h | 1 |
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 |