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Message-ID: <556DA078.4020901@linaro.org>
Date: Tue, 02 Jun 2015 20:24:24 +0800
From: Hanjun Guo <hanjun.guo@...aro.org>
To: Marc Zyngier <marc.zyngier@....com>,
Jason Cooper <jason@...edaemon.net>,
Will Deacon <will.deacon@....com>,
Catalin Marinas <catalin.marinas@....com>,
"Rafael J. Wysocki" <rjw@...ysocki.net>
CC: Jiang Liu <jiang.liu@...ux.intel.com>,
Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
Arnd Bergmann <arnd@...db.de>,
Tomasz Nowicki <tomasz.nowicki@...aro.org>,
Grant Likely <grant.likely@...aro.org>,
Thomas Gleixner <tglx@...utronix.de>,
Olof Johansson <olof@...om.net>,
linux-arm-kernel@...ts.infradead.org, linux-acpi@...r.kernel.org,
linux-kernel@...r.kernel.org, linaro-acpi@...ts.linaro.org
Subject: Re: [PATCH 00/11] Add self-probe infrastructure and stacked irqdomain
support for ACPI based GICv2/3 init
Hi Marc,
Ping, could you comment on if we are on the right direction
for this patch set? much appreciated.
Thanks
Hanjun
On 2015年05月18日 20:59, Hanjun Guo wrote:
> 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
>
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