diff options
| author | Will Deacon <will.deacon@arm.com> | 2017-03-10 20:32:24 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2017-03-20 16:17:02 +0000 |
| commit | dda288d7e4f605632dc6e19c69063f1725056208 (patch) | |
| tree | 72ee2d87ea23475afc08611168ff64257b9dab84 /arch/arm64/kernel/cpuinfo.c | |
| parent | 02f7760e6e5c3d726cd9622749cdae17c571b9a3 (diff) | |
arm64: cache: Identify VPIPT I-caches
Add support for detecting VPIPT I-caches, as introduced by ARMv8.2.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/cpuinfo.c')
| -rw-r--r-- | arch/arm64/kernel/cpuinfo.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index 260b54f415b8..7d27f4b4881e 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -46,6 +46,7 @@ static char *icache_policy_str[] = { [0 ... ICACHE_POLICY_PIPT] = "RESERVED/UNKNOWN", [ICACHE_POLICY_VIPT] = "VIPT", [ICACHE_POLICY_PIPT] = "PIPT", + [ICACHE_POLICY_VPIPT] = "VPIPT", }; unsigned long __icache_flags; @@ -291,6 +292,9 @@ static void cpuinfo_detect_icache_policy(struct cpuinfo_arm64 *info) switch (l1ip) { case ICACHE_POLICY_PIPT: break; + case ICACHE_POLICY_VPIPT: + set_bit(ICACHEF_VPIPT, &__icache_flags); + break; default: /* Fallthrough */ case ICACHE_POLICY_VIPT: |