From: tn@semihalf•com (Tomasz Nowicki)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 0/5] ACPI probing infrastructure
Date: Tue, 8 Sep 2015 16:38:50 +0200 [thread overview]
Message-ID: <55EEF2FA.3050009@semihalf.com> (raw)
In-Reply-To: <55ED3599.5090508@semihalf.com>
On 07.09.2015 08:58, Tomasz Nowicki wrote:
> Hi Marc,
>
> On 04.09.2015 19:06, Marc Zyngier wrote:
>> IRQ controllers and timers are the two types of device the kernel
>> requires before being able to use the device driver model.
>>
>> ACPI so far lacks a proper probing infrastructure similar to the one
>> we have with DT, where we're able to declare IRQ chips and
>> clocksources inside the driver code, and let the core code pick it up
>> and call us back on a match. This leads to all kind of really ugly
>> hacks all over the arm64 code and even in the ACPI layer.
>>
>> It turns out that providing such a probing infrastructure is rather
>> easy, and provides a much deserved cleanup in both the arch code, the
>> GIC driver, and the architected timer driver.
>>
>> I'm sure there is some more code to be deleted, and one can only
>> wonder why this wasn't done before the arm64 code was initially merged
>> (the diffstat says it all...).
>>
>> Patches are against v4.2, and a branch is available at
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git
>> acpi/device-probing
>>
>> Marc Zyngier (5):
>> acpi: Add basic device probing infrastructure
>> irqchip/acpi: Add probing infrastructure for ACPI-based irqchips
>> irqchip/gic: Convert the GIC driver to ACPI probing
>> clocksource/acpi: Add probing infrastructure for ACPI-based
>> clocksources
>> clocksource/arm_arch_timer: Convert to ACPI probing
>>
>> arch/arm64/include/asm/acpi.h | 1 -
>> arch/arm64/include/asm/irq.h | 13 -------
>> arch/arm64/kernel/acpi.c | 25 -------------
>> arch/arm64/kernel/time.c | 6 ----
>> drivers/acpi/scan.c | 41 +++++++++++++++++++++
>> drivers/clocksource/arm_arch_timer.c | 10 +-----
>> drivers/clocksource/clksrc-of.c | 4 +++
>> drivers/irqchip/irq-gic.c | 69
>> ++++++++++++++++++------------------
>> drivers/irqchip/irqchip.c | 5 ++-
>> include/asm-generic/vmlinux.lds.h | 11 ++++++
>> include/linux/acpi.h | 56 +++++++++++++++++++++++++++++
>> include/linux/acpi_irq.h | 10 ------
>> include/linux/clocksource.h | 6 ----
>> include/linux/irqchip.h | 16 +++++++++
>> include/linux/irqchip/arm-gic-acpi.h | 31 ----------------
>> 15 files changed, 166 insertions(+), 138 deletions(-)
>> delete mode 100644 include/linux/acpi_irq.h
>> delete mode 100644 include/linux/irqchip/arm-gic-acpi.h
>>
>
> Thanks for cleaning this up!
>
> For the whole series:
> Acked-by: Tomasz Nowicki <tn@semihalf•com>
s/Acked-by/Reviewed-by
Tomasz
next prev parent reply other threads:[~2015-09-08 14:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-04 17:06 [PATCH 0/5] ACPI probing infrastructure Marc Zyngier
2015-09-04 17:06 ` [PATCH 1/5] acpi: Add basic device " Marc Zyngier
2015-09-07 16:00 ` Lorenzo Pieralisi
2015-09-07 17:35 ` Marc Zyngier
2015-09-07 21:29 ` Rafael J. Wysocki
2015-09-08 9:57 ` Marc Zyngier
2015-09-08 13:01 ` Hanjun Guo
2015-09-04 17:06 ` [PATCH 2/5] irqchip/acpi: Add probing infrastructure for ACPI-based irqchips Marc Zyngier
2015-09-04 17:06 ` [PATCH 3/5] irqchip/gic: Convert the GIC driver to ACPI probing Marc Zyngier
2015-09-04 17:06 ` [PATCH 4/5] clocksource/acpi: Add probing infrastructure for ACPI-based clocksources Marc Zyngier
2015-09-04 17:06 ` [PATCH 5/5] clocksource/arm_arch_timer: Convert to ACPI probing Marc Zyngier
2015-09-07 6:58 ` [PATCH 0/5] ACPI probing infrastructure Tomasz Nowicki
2015-09-08 14:38 ` Tomasz Nowicki [this message]
2015-09-07 21:26 ` Rafael J. Wysocki
2015-09-08 9:45 ` Marc Zyngier
2015-09-08 22:26 ` Rafael J. Wysocki
2015-09-08 13:19 ` Hanjun Guo
2015-09-10 9:03 ` Hanjun Guo
2015-09-11 14:06 ` Marc Zyngier
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