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| author |   Suzuki K Poulose <suzuki.poulose@arm.com> | 2018-10-09 14:47:07 +0100 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2018-10-16 11:53:34 +0100 |
| commit | 4afe8e79da920bdf6698b01bc668fffc6758f37b (patch) | |
| tree | d2c1918b8acb95d4b5b36c103c82057cac9cd4a1 /drivers/perf | |
| parent | arm64: cpufeature: Fix handling of CTR_EL0.IDC field (diff) | |
| download | linux-dev-4afe8e79da920bdf6698b01bc668fffc6758f37b.tar.xz linux-dev-4afe8e79da920bdf6698b01bc668fffc6758f37b.zip | |
arm64: cpufeature: Trap CTR_EL0 access only where it is necessary
When there is a mismatch in the CTR_EL0 field, we trap
access to CTR from EL0 on all CPUs to expose the safe
value. However, we could skip trapping on a CPU which
matches the safe value.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'drivers/perf')
0 files changed, 0 insertions, 0 deletions