summaryrefslogtreecommitdiffstats
path: root/arch/arm64/include/asm/hardirq.h
Commit message (Collapse)AuthorAgeFilesLines
* arm64: enable generic clockevent broadcastLorenzo Pieralisi2013-12-161-1/+1
| | | | | | | | | | | | | | On platforms with power management capabilities, timers that are shut down when a CPU enters deep C-states must be emulated using an always-on timer and a timer IPI to relay the timer IRQ to target CPUs on an SMP system. This patch enables the generic clockevents broadcast infrastructure for arm64, by providing the required Kconfig entries and adding the timer IPI infrastructure. Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
* arm64: Use irqchip_init() for interrupt controller initialisationCatalin Marinas2013-03-261-0/+5
| | | | | | | | This patch uses the generic irqchip_init() function for initialising the interrupt controller on arm64. It also adds several definitions required by the ARM GIC irqchip driver but does not enable ARM_GIC yet. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
* arm64: SMP supportCatalin Marinas2012-09-171-0/+5
| | | | | | | | | | | | | | | | | | | | | | | This patch adds SMP initialisation and spinlocks implementation for AArch64. The spinlock support uses the new load-acquire/store-release instructions to avoid explicit barriers. The architecture also specifies that an event is automatically generated when clearing the exclusive monitor state to wake up processors in WFE, so there is no need for an explicit DSB/SEV instruction sequence. The SEVL instruction is used to set the exclusive monitor locally as there is no conditional WFE and a branch is more expensive. For the SMP booting protocol, see Documentation/arm64/booting.txt. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* arm64: IRQ handlingMarc Zyngier2012-09-171-0/+47
This patch adds the support for IRQ handling. The actual interrupt controller will be part of a separate patch (going into drivers/irqchip/). Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
OpenPOWER on IntegriCloud