This patch set introduce self-probe infrastructure to init IRQ
controllers and stacked irqdomain support for ACPI based GICv2/3
init.
The self-probe infrastructure for ACPI GIC init is similar as
IRQCHIP_DECLARE() and based on the GIC version support in ACPI
MADT table.
We introduce acpi_irq_domain for GICv2/3 core domain to support
stacked irqdomain, and pass the gsi (global system interrupt) as
the agument (void *arg) for gic_irq_domain_alloc(), then we can
alloc virqs via acpi_register_gsi() with stacked irqdomain.
In order to make ACPI related GIC init code slef-contained, I
consolidated all the GIC init code into drivers/irqchip/irq-gic-acpi.c.
update from RFC version:
- Consolidate all the GIC init code into drivers/irqchip/irq-gic-acpi.c
Hanjun Guo (8):
irqchip / GIC: Add GIC version support in ACPI MADT
irqchip / GIC / ACPI: Use IRQCHIP_ACPI_DECLARE to simplify GICv2 init
code
irqchip / gic: Add stacked irqdomain support for ACPI based GICv2 init
ACPI / gsi: Add gsi_mutex to synchronize
acpi_register_gsi()/acpi_unregister_gsi()
irqchip / GICv3: Add ACPI support for GICv3+ initialization
irqchip / GICv3: Add stacked irqdomain support for ACPI based init
irqchip / GICv2 / ACPI: Consolidate GICv2 ACPI related init code
irqchip / GICv3 / ACPI: Consolidate GICv3 ACPI related init code
Tomasz Nowicki (3):
ACPICA: Introduce GIC version for arm based system
ACPI / irqchip: Add self-probe infrastructure to initialize IRQ
controller
irqchip / GICv3: Refactor gic_of_init() for GICv3 driver
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/irq.h | 13 --
arch/arm64/kernel/acpi.c | 25 ---
drivers/acpi/Makefile | 1 +
drivers/acpi/gsi.c | 41 +++--
drivers/acpi/irq.c | 40 +++++
drivers/irqchip/Kconfig | 3 +
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-gic-acpi.c | 318 +++++++++++++++++++++++++++++++++++
drivers/irqchip/irq-gic-v3.c | 149 +++++++++-------
drivers/irqchip/irq-gic.c | 129 ++------------
drivers/irqchip/irqchip.h | 12 ++
include/acpi/actbl1.h | 17 +-
include/asm-generic/vmlinux.lds.h | 13 ++
include/linux/acpi.h | 14 ++
include/linux/acpi_irq.h | 4 +-
include/linux/irqchip/arm-gic-acpi.h | 13 +-
include/linux/irqchip/arm-gic-v3.h | 10 ++
include/linux/mod_devicetable.h | 7 +
19 files changed, 577 insertions(+), 234 deletions(-)
create mode 100644 drivers/acpi/irq.c
create mode 100644 drivers/irqchip/irq-gic-acpi.c
--
1.9.1
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