[PATCH v3 0/6] ARM/ARM64 architected timer updates
daniel.lezcano at linaro.org
Wed Aug 14 05:08:26 EDT 2013
On 08/13/2013 07:29 PM, Sudeep KarkadaNagesha wrote:
> From: Sudeep KarkadaNagesha <sudeep.karkadanagesha at arm.com>
> This patch series adds support to configure the rate and enable the
> event stream for architected timer. The event streams can be used to
> impose a timeout on a WFE, to safeguard against any programming error
> in case an expected event is not generated or even to implement
> wfe-based timeouts for userspace locking implementations.
> Since the timer control register is reset to zero on warm boot, CPU
> PM notifier is added to re-initialize it.
It does not apply to my tree.
Against which tree is this patchset ? Who is supposed to take it ?
> Changes v2->v3:
> 1. Moved ARM and ARM64 changes into separate patches
> 2. Added native hwcaps definations(ARM/ARM64) and compat-specific
> definitions(ARM64) to the users for the event stream feature.
Ok, we have the choice:
1. split the patchset into arch/arm changes and drivers/clocksource
2. I ack the patchset and Olof/Kevin take it
3. Olof/Kevin ack the patchset and I take it in my tree.
This is really becoming fuzzy.
If you want a maintainer to take a patchset you have to send an email
--to him and --cc mailing list and others concerned by the patchset.
> Changes v1->v2:
> 1. Saved event stream divider value on cold reset path and re-used it
> in CPU PM notifier instead of calculating every time.
> 2. Rebased on v3.11-rc2(to avoid conflicts with __cpuinit* deletion)
> 3. Dropped "ARM/ARM64: arch_timer: remove __cpuinit attribute for
> arch_counter_set_user_access"(already done as part of __cpuinit*
> Sudeep KarkadaNagesha (5):
> ARM/ARM64: arch_timer: add macros for bits in control register
> ARM: arch_timer: configure and enable event stream
> ARM64: arch_timer: configure and enable event stream
> drivers: clocksource: enable hwcaps for event stream on ARM arch timer
> drivers: clocksource: add CPU PM notifier for ARM architected timer
> Will Deacon (1):
> drivers: clocksource: configure event stream for ARM arch timer
> arch/arm/include/asm/arch_timer.h | 18 +++++++++++---
> arch/arm/include/uapi/asm/hwcap.h | 1 +
> arch/arm/kernel/setup.c | 1 +
> arch/arm64/include/asm/arch_timer.h | 22 +++++++++++++----
> arch/arm64/include/asm/hwcap.h | 4 ++-
> arch/arm64/include/uapi/asm/hwcap.h | 1 +
> arch/arm64/kernel/setup.c | 1 +
> drivers/clocksource/arm_arch_timer.c | 48 +++++++++++++++++++++++++++++++++++-
> include/clocksource/arm_arch_timer.h | 10 ++++++++
> 9 files changed, 96 insertions(+), 10 deletions(-)
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