This series introduces support for Amazon's Annapurna Labs Fabric Interrupt
Controller.
The Amazon's Annapurna Labs FIC (Fabric Interrupt Controller) has 32
inputs/sources. The output of this interrupt controller can be legacy-wired
output or, in case embedded inside PCIe devices, msi-x message. This FIC may
be cascaded into another FIC or connected directly to the main CPU
Interrupt Controller (e.g. GIC).
The FIC is a flexible HW unit that is embedded inside different parts of
the Amazon's Annapurna Labs chips. It can be a simple level 2 interrupt
controller which is then configured as a wired interrupt controller that
aggregates events from different units, or, while embedded inside PCIe
device, it can generate MSI-X messages based on the tables configured to
that PCIe device or can be configured to generate wired interrupt.
Talel Shenhar (3):
dt-bindings: interrupt-controller: Amazon's Annapurna Labs FIC
irqchip: al-fic: Introduce Amazon's Annapurna Labs Fabric Interrupt
Controller Driver
irqchip: al-fic: Introducing support for MSI-X
.../interrupt-controller/amazon,al-fic.txt | 22 ++
MAINTAINERS | 7 +
drivers/irqchip/Kconfig | 11 +
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-al-fic.c | 388 +++++++++++++++++++++
include/linux/irqchip/al-fic.h | 23 ++
6 files changed, 452 insertions(+)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.txt
create mode 100644 drivers/irqchip/irq-al-fic.c
create mode 100644 include/linux/irqchip/al-fic.h
--
2.7.4
