arm64: Refactor check_cpu_capabilities
authorSuzuki K. Poulose <suzuki.poulose@arm.com>
Mon, 19 Oct 2015 13:24:49 +0000 (14:24 +0100)
committerCatalin Marinas <catalin.marinas@arm.com>
Wed, 21 Oct 2015 14:35:57 +0000 (15:35 +0100)
commitce8b602c694c9482e0ffb7432cd59fa2276673fe
tree361323d35c0689ad745380f36d851e13dc9bb1e1
parentc1e8656cbae139c8aaf34d7b802edecbc8a1cf58
arm64: Refactor check_cpu_capabilities

check_cpu_capabilities runs through a given list of caps and
checks if the system has the cap, updates the system capability
bitmap and also runs any enable() methods associated with them.
All of this is not quite obvious from the name 'check'. This
patch splits the check_cpu_capabilities into two parts :

1) update_cpu_capabilities
 => Runs through the given list and updates the system
    wide capability map.
2) enable_cpu_capabilities
 => Runs through the given list and invokes enable() (if any)
    for the caps enabled on the system.

Cc: Andre Przywara <andre.przywara@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Suggested-by: Catalin Marinas <catalin.marinsa@arm.com>
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Tested-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/include/asm/cpufeature.h
arch/arm64/kernel/cpu_errata.c
arch/arm64/kernel/cpufeature.c