diff options
| author | Suzuki K. Poulose <suzuki.poulose@arm.com> | 2015-01-21 15:43:10 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2015-01-23 20:11:30 +0300 |
| commit | 736d474f0fafd1486f178570bc47660ee9dfdef8 (patch) | |
| tree | 5d2980222088d482e73ec8047cbca23d7695ec85 /arch/arm64/include | |
| parent | 04597a65c5efc207257a736d339c6f2f5b00250f (diff) | |
| download | linux-736d474f0fafd1486f178570bc47660ee9dfdef8.tar.xz | |
arm64: Consolidate hotplug notifier for instruction emulation
As of now each insn_emulation has a cpu hotplug notifier that
enables/disables the CPU feature bit for the functionality. This
patch re-arranges the code, such that there is only one notifier
that runs through the list of registered emulation hooks and runs
their corresponding set_hw_mode.
We do nothing when a CPU is dying as we will set the appropriate bits
as it comes back online based on the state of the hooks.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Punit Agrawal <punit.agrawal@arm.com>
[catalin.marinas@arm.com: fix pr_warn compilation error]
[catalin.marinas@arm.com: remove unnecessary "insn" check]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/cputype.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h index ee6403df9fe4..68732e9a02fb 100644 --- a/arch/arm64/include/asm/cputype.h +++ b/arch/arm64/include/asm/cputype.h @@ -81,6 +81,8 @@ #define ID_AA64MMFR0_BIGEND(mmfr0) \ (((mmfr0) & ID_AA64MMFR0_BIGEND_MASK) >> ID_AA64MMFR0_BIGEND_SHIFT) +#define SCTLR_EL1_CP15BEN (0x1 << 5) + #ifndef __ASSEMBLY__ /* |