Messages in this thread | | | Date | Mon, 20 Mar 2017 15:07:53 +0000 | From | Mark Rutland <> | Subject | Re: [PATCH 00/17] clocksource/arch_timer: Errara workaround infrastructure rework |
| |
On Mon, Mar 06, 2017 at 11:26:05AM +0000, Marc Zyngier wrote: > It has recently become obvious that a number of arm64 systems have > been blessed with a set of timers that are slightly less than perfect, > and require a bit of hand-holding. We already have a bunch of > errata-specific code to deal with this, but as we're adding more > potential detection methods (DT, ACPI, capability), things are getting > a bit out of hands. > > Instead of adding more ad-hoc fixes to an already difficult code base, > let's give ourselves a bit of an infrastructure that can deal with > this and hide most of the uggliness behind frendly accessors.
> Documentation/arm64/silicon-errata.txt | 1 + > arch/arm64/include/asm/arch_timer.h | 44 ++- > arch/arm64/include/asm/cpucaps.h | 3 +- > arch/arm64/include/asm/cputype.h | 2 + > arch/arm64/include/asm/esr.h | 2 + > arch/arm64/kernel/cpu_errata.c | 15 + > arch/arm64/kernel/cpufeature.c | 13 +- > arch/arm64/kernel/traps.c | 14 + > drivers/clocksource/Kconfig | 11 + > drivers/clocksource/arm_arch_timer.c | 529 +++++++++++++++++++++++---------- > 10 files changed, 465 insertions(+), 169 deletions(-)
Largely this looks ok.
What's the plan for merging this?
If you can respin this, I can see about collating this with the ACPI GTDT patches, but I'm not sure what to do about the arch/arm64/ parts.
Thanks, Mark.
| |