[RFC PATCH 0/9] Add self-probe infrastructure and stacked irqdomain support for ACPI based GICv2/3 init
Rafael J. Wysocki
rjw at rjwysocki.net
Tue May 5 13:28:21 PDT 2015
On Tuesday, May 05, 2015 09:50:48 PM Hanjun Guo wrote:
> This patch set introduce self-probe infrastructure to init IRQ
> controllers and stacked irqdomain support for ACPI based GICv2/3
> 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.
> I already compiled this patch set ok with both ACPI=on/off on
> ARM64 and also compiled ok on x86, tested with GICv2 init on
> FVP model and it boot successfully.
> Next step I would consolidate all the ACPI GIC init into one
> file -- drivers/irqchip/irq-gic-acpi.c, and introduce ITS and
> IORT support.
> please comment on this patchset to see if we are on the right
> Hanjun Guo (6):
> irqchip / gic: Add GIC version support in ACPI MADT
> irqchip: gic: ACPI: Use IRQCHIP_ACPI_DECLARE to simplify GICv2 init
> irqchip / gic: Add stacked irqdomain support for ACPI based GICv2 init
> ACPI / gsi: Add gsi_mutex to synchronize
> irqchip / GICv3: Add ACPI support for GICv3+ initialization
> irqchip / GICv3: Add stacked irqdomain support for ACPI based init
> Tomasz Nowicki (3):
> ACPICA: Introduce GIC version for arm based system
> ACPI / irqchip: Add self-probe infrastructure to initialize IRQ
> 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 | 39 ++---
> drivers/acpi/irq.c | 40 ++++++
> drivers/irqchip/Kconfig | 3 +
> drivers/irqchip/Makefile | 1 +
> drivers/irqchip/irq-gic-acpi.c | 116 +++++++++++++++
> drivers/irqchip/irq-gic-v3.c | 267 ++++++++++++++++++++++++++++-------
> drivers/irqchip/irq-gic.c | 38 ++---
> 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 | 12 +-
> include/linux/mod_devicetable.h | 7 +
> 18 files changed, 489 insertions(+), 134 deletions(-)
> create mode 100644 drivers/acpi/irq.c
> create mode 100644 drivers/irqchip/irq-gic-acpi.c
What's the connection between this and the Jiang Liu's patchset?
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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