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| author | James Hogan <james.hogan@imgtec.com> | 2015-09-17 17:49:20 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-09-22 21:11:05 +0200 |
| commit | 2f6f31363cb7890784458d7805140687b4de5b59 (patch) | |
| tree | 028fff6eecd645873d3da7038c857730b283d9d3 /arch/mips/include/asm/cpu.h | |
| parent | 19446da415e0f01d56364b700fe984cda78bca50 (diff) | |
| download | op-kernel-dev-2f6f31363cb7890784458d7805140687b4de5b59.zip op-kernel-dev-2f6f31363cb7890784458d7805140687b4de5b59.tar.gz | |
MIPS: cpu-features: Add cpu_has_ftlb
Add cpu_has_ftlb, which specifies that an FTLB is present in addition to
the VTLB, probed based on whether Config.MT == 4 (rather than 1 for
standard JTLB).
This is necessary since MIPS release 6 removes Config4.MMUExtDef, so the
presence of the FTLB fields in Config4 must be determined from Config.MT
instead.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11159/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/cpu.h')
| -rw-r--r-- | arch/mips/include/asm/cpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index cd89e98..82ad15f 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -385,6 +385,7 @@ enum cpu_type_enum { #define MIPS_CPU_CDMM 0x4000000000ull /* CPU has Common Device Memory Map */ #define MIPS_CPU_BP_GHIST 0x8000000000ull /* R12K+ Branch Prediction Global History */ #define MIPS_CPU_SP 0x10000000000ull /* Small (1KB) page support */ +#define MIPS_CPU_FTLB 0x20000000000ull /* CPU has Fixed-page-size TLB */ /* * CPU ASE encodings |
