From: Rob Herring <robh@kernel.org>
To: Hector Martin <marcan@marcan.st>
Cc: soc@kernel.org, linux-arm-kernel@lists.infradead.org,
Marc Zyngier <maz@kernel.org>, Arnd Bergmann <arnd@kernel.org>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
Olof Johansson <olof@lixom.net>
Subject: Re: [PATCH 14/18] dt-bindings: interrupt-controller: Add DT bindings for apple-aic
Date: Tue, 9 Feb 2021 17:07:34 -0600 [thread overview]
Message-ID: <20210209230734.GA387609@robh.at.kernel.org> (raw)
In-Reply-To: <20210204203951.52105-15-marcan@marcan.st>
On Fri, Feb 05, 2021 at 05:39:47AM +0900, Hector Martin wrote:
> AIC is the Apple Interrupt Controller found on Apple ARM SoCs, such as
> the M1.
>
> Signed-off-by: Hector Martin <marcan@marcan.st>
> ---
> .../interrupt-controller/AAPL,aic.yaml | 88 +++++++++++++++++++
> MAINTAINERS | 2 +
> .../interrupt-controller/apple-aic.h | 14 +++
> 3 files changed, 104 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/interrupt-controller/AAPL,aic.yaml
> create mode 100644 include/dt-bindings/interrupt-controller/apple-aic.h
>
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/AAPL,aic.yaml b/Documentation/devicetree/bindings/interrupt-controller/AAPL,aic.yaml
> new file mode 100644
> index 000000000000..7e119614275a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/AAPL,aic.yaml
> @@ -0,0 +1,88 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/interrupt-controller/AAPL,aic.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Apple Interrupt Controller
> +
> +maintainers:
> + - Hector Martin <marcan@marcan.st>
> +
> +description: |
> + The Apple Interrupt Controller is a simple interrupt controller present on
> + Apple ARM SoC platforms, including various iPhone and iPad devices and the
> + "Apple Silicon" M1 Macs.
> +
> + It provides the following features:
> +
> + - Level-triggered hardware IRQs wired to SoC blocks
> + - Single mask bit per IRQ
> + - Per-IRQ affinity setting
> + - Automatic masking on event delivery (auto-ack)
> + - Software triggering (ORed with hw line)
> + - 2 per-CPU IPIs (meant as "self" and "other", but they are interchangeable
> + if not symmetric)
> + - Automatic prioritization (single event/ack register per CPU, lower IRQs =
> + higher priority)
> + - Automatic masking on ack
> + - Default "this CPU" register view and explicit per-CPU views
> +
> +allOf:
> + - $ref: /schemas/interrupt-controller.yaml#
> +
> +properties:
> + compatible:
> + contains:
> + enum:
> + - AAPL,aic
> + - AAPL,m1-aic
Instead of 'contains', this should be:
items:
- const: AAPL,m1-aic
- const: AAPL,aic
With 'apple' instead...
> +
> + interrupt-controller: true
> +
> + '#interrupt-cells':
> + const: 3
> + description: |
> + The 1st cell contains the interrupt type:
> + - 0: Hardware IRQ
> + - 1: FIQ
> + - 2: IPI
> +
> + The 2nd cell contains the interrupt number.
> + - HW IRQs: interrupt number
> + - FIQs:
> + - 0: physical timer
> + - 1: virtual timer
> + - IPIs:
> + - 0: normal/"other" IPI (used interanlly for virtual IPIs)
> + - 1: self IPI (normally unused)
> +
> + The 3rd cell contains the interrupt flags. This is normally
> + IRQ_TYPE_LEVEL_HIGH (4).
> +
> + reg:
> + description: |
> + Specifies base physical address and size of the AIC registers.
> + maxItems: 1
> +
> +required:
> + - compatible
> + - '#interrupt-cells'
> + - interrupt-controller
> + - reg
> +
> +unevaluatedProperties: false
additionalProperties: false
(stricter and actually has support implemented)
> +
> +examples:
> + - |
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + aic: interrupt-controller@23b100000 {
> + compatible = "AAPL,m1-aic", "AAPL,aic";
> + #interrupt-cells = <3>;
> + interrupt-controller;
> + reg = <0x2 0x3b100000 0x0 0x8000>;
> + };
> + };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 91a7b33834ac..f3d4661731c8 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1634,6 +1634,8 @@ B: https://github.com/AsahiLinux/linux/issues
> C: irc://chat.freenode.net/asahi-dev
> T: git https://github.com/AsahiLinux/linux.git
> F: Documentation/devicetree/bindings/arm/AAPL.yaml
> +F: Documentation/devicetree/bindings/interrupt-controller/AAPL,aic.yaml
> +F: include/dt-bindings/interrupt-controller/apple-aic.h
>
> ARM/ARTPEC MACHINE SUPPORT
> M: Jesper Nilsson <jesper.nilsson@axis.com>
> diff --git a/include/dt-bindings/interrupt-controller/apple-aic.h b/include/dt-bindings/interrupt-controller/apple-aic.h
> new file mode 100644
> index 000000000000..f54dc0cd6e9a
> --- /dev/null
> +++ b/include/dt-bindings/interrupt-controller/apple-aic.h
> @@ -0,0 +1,14 @@
> +/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
> +#ifndef _DT_BINDINGS_INTERRUPT_CONTROLLER_APPLE_AIC_H
> +#define _DT_BINDINGS_INTERRUPT_CONTROLLER_APPLE_AIC_H
> +
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +#define AIC_IRQ 0
> +#define AIC_FIQ 1
> +#define AIC_IPI 2
> +
> +#define AIC_TMR_PHYS 0
> +#define AIC_TMR_VIRT 1
> +
> +#endif
> --
> 2.30.0
>
next prev parent reply other threads:[~2021-02-10 1:27 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-04 20:39 [PATCH 00/18] Apple M1 SoC platform bring-up Hector Martin
2021-02-04 20:39 ` [PATCH 01/18] dt-bindings: vendor-prefixes: add AAPL prefix Hector Martin
2021-02-08 10:27 ` Krzysztof Kozlowski
2021-02-08 17:32 ` Rob Herring
2021-02-08 18:12 ` Krzysztof Kozlowski
2021-02-08 23:17 ` Hector Martin
2021-02-04 20:39 ` [PATCH 02/18] dt-bindings: arm: cpus: Add AAPL,firestorm & icestorm compatibles Hector Martin
2021-02-04 20:39 ` [PATCH 03/18] dt-bindings: arm: AAPL: Add bindings for Apple ARM platforms Hector Martin
2021-02-04 20:39 ` [PATCH 04/18] arm64: Kconfig: Introduce CONFIG_ARCH_APPLE Hector Martin
[not found] ` <87k0rll4i8.wl-maz@kernel.org>
2021-02-07 8:05 ` Hector Martin 'marcan'
2021-02-04 20:39 ` [PATCH 05/18] tty: serial: samsung_tty: add support for Apple UARTs Hector Martin
2021-02-04 23:55 ` kernel test robot
2021-02-05 9:44 ` Hector Martin 'marcan'
2021-02-05 2:19 ` kernel test robot
[not found] ` <87lfc1l4lo.wl-maz@kernel.org>
2021-02-07 9:12 ` Hector Martin 'marcan'
2021-02-07 9:26 ` Hector Martin 'marcan'
2021-02-08 9:36 ` Krzysztof Kozlowski
2021-02-08 16:14 ` Hector Martin
[not found] ` <73116feaa00de9173d1f2c35ce16e08f@kernel.org>
2021-02-08 16:18 ` Hector Martin
[not found] ` <YCFq3DqOzv4//6Vw@kroah.com>
2021-02-08 23:22 ` Hector Martin
2021-02-08 10:54 ` Krzysztof Kozlowski
2021-02-08 16:10 ` Hector Martin
2021-02-08 18:37 ` Krzysztof Kozlowski
2021-02-08 23:23 ` Hector Martin
2021-02-04 20:39 ` [PATCH 06/18] dt-bindings: serial: samsung: Add AAPL,s5l-uart compatible Hector Martin
2021-02-04 20:39 ` [PATCH 07/18] tty: serial: samsung_tty: enable for ARCH_APPLE Hector Martin
[not found] ` <CAK8P3a1n+C5V5J24myy_h67DVp2YTN5Hd=tCWjPUYZcrAX4hCg@mail.gmail.com>
2021-02-04 21:27 ` Hector Martin 'marcan'
2021-02-04 20:39 ` [PATCH 08/18] arm64: cpufeature: Add a feature for FIQ support Hector Martin
[not found] ` <87im75l2lp.wl-maz@kernel.org>
2021-02-07 8:28 ` Hector Martin 'marcan'
[not found] ` <87czxalrwc.wl-maz@kernel.org>
2021-02-08 15:51 ` Hector Martin
2021-02-04 20:39 ` [PATCH 09/18] arm64: cputype: Add CPU types for the Apple M1 big/little cores Hector Martin
2021-02-04 20:39 ` [PATCH 10/18] arm64: Introduce FIQ support Hector Martin
[not found] ` <87h7mpky0f.wl-maz@kernel.org>
[not found] ` <CAK8P3a0-Qk1WAUaCWeX8Zypphpadan3YAOES9t7LFYBOJkXKog@mail.gmail.com>
2021-02-07 8:36 ` Hector Martin 'marcan'
[not found] ` <CAK8P3a1R51_nqfMWG7SxScJNJEQ3qvp-cynABKEDaQ4O9REM=Q@mail.gmail.com>
2021-02-07 15:38 ` Hector Martin 'marcan'
[not found] ` <CAK8P3a1vmUJ0EpzU2+u2gy8WHCVV5ur9u-oTzU2BP=ddbXQeLQ@mail.gmail.com>
2021-02-08 23:34 ` Hector Martin
2021-02-07 8:47 ` Hector Martin 'marcan'
2021-02-04 20:39 ` [PATCH 11/18] arm64: Kconfig: Require FIQ support for ARCH_APPLE Hector Martin
[not found] ` <87ft29kxmp.wl-maz@kernel.org>
2021-02-07 9:23 ` Hector Martin 'marcan'
[not found] ` <2a93bf0df74df8cb022e61d69d1de88e@kernel.org>
2021-02-08 15:48 ` Hector Martin
2021-02-04 20:39 ` [PATCH 12/18] arm64: setup: Use nGnRnE IO mappings for fixmap on Apple platforms Hector Martin
2021-02-04 20:39 ` [PATCH 13/18] arm64: ioremap: use nGnRnE mappings on platforms that require it Hector Martin
[not found] ` <CAK8P3a2Ad+xmmMWgznOHPpxgCXKWFYfpHBqt_49_UuxrwFSq+A@mail.gmail.com>
2021-02-08 23:20 ` Mark Kettenis
2021-02-09 0:25 ` Hector Martin
[not found] ` <CAK8P3a043eO4p2o6tizR2x7a1TZHMqO7TdX53JC4bTZnbQd9iQ@mail.gmail.com>
2021-02-09 9:58 ` Mark Kettenis
2021-02-09 11:22 ` Hector Martin
2021-02-10 12:24 ` Hector Martin
2021-02-10 13:40 ` Mark Kettenis
2021-02-04 20:39 ` [PATCH 14/18] dt-bindings: interrupt-controller: Add DT bindings for apple-aic Hector Martin
2021-02-09 23:07 ` Rob Herring [this message]
2021-02-04 20:39 ` [PATCH 15/18] irqchip/apple-aic: Add support for the Apple Interrupt Controller Hector Martin
[not found] ` <CAK8P3a1zbLM0s_GwkJ0AJQ8cocS-zcsWWKhOB7B99OtRYyDE7g@mail.gmail.com>
2021-02-04 22:04 ` Hector Martin 'marcan'
[not found] ` <CAK8P3a14vsLkCujd_XBAOAjL2h878gxkaoKPpaxL4jddZZcc-A@mail.gmail.com>
2021-02-05 7:41 ` Hector Martin 'marcan'
2021-02-05 2:27 ` kernel test robot
2021-02-05 9:45 ` Hector Martin 'marcan'
[not found] ` <87eehqlxlr.wl-maz@kernel.org>
[not found] ` <CAK8P3a25eFFrMG-9QknFZ6Ckc3-gkiLK=jQdnyTMgn-z4X0RHQ@mail.gmail.com>
2021-02-08 11:13 ` Hector Martin 'marcan'
[not found] ` <87a6selrkt.wl-maz@kernel.org>
2021-02-08 15:31 ` Hector Martin
2021-02-09 6:20 ` Hector Martin
2021-02-04 20:39 ` [PATCH 16/18] irqchip/apple-aic: Add SMP / IPI support Hector Martin
2021-02-04 20:39 ` [PATCH 17/18] dt-bindings: display: add AAPL,simple-framebuffer Hector Martin
2021-02-04 20:39 ` [PATCH 18/18] arm64: apple: Add initial Mac Mini 2020 (M1) devicetree Hector Martin
[not found] ` <CAK8P3a3v6emxavbyjFhY+WdvH1t4EPMZSjEsSx0M+cRqjRCO1g@mail.gmail.com>
2021-02-04 21:44 ` Hector Martin 'marcan'
[not found] ` <CAK8P3a2DawQA-PD5aqbkVPB7UxuohN0oe9mJPe8488pUryotJQ@mail.gmail.com>
2021-02-05 7:11 ` Hector Martin 'marcan'
2021-02-08 11:04 ` Krzysztof Kozlowski
2021-02-08 11:56 ` Hector Martin 'marcan'
2021-02-08 12:13 ` Krzysztof Kozlowski
[not found] ` <CAK8P3a0yBC3dui6vcz+NByWD-3LqRj-2MF89jpjb_k8r5xmNRA@mail.gmail.com>
2021-02-08 14:12 ` Hector Martin
2021-02-08 17:58 ` Rob Herring
2021-02-09 0:32 ` Hector Martin
2021-02-08 19:14 ` Rob Herring
2021-02-09 0:49 ` Hector Martin
2021-02-10 10:19 ` Tony Lindgren
2021-02-10 11:07 ` Hector Martin
2021-02-10 11:34 ` Tony Lindgren
2021-02-10 11:43 ` Hector Martin
2021-02-10 12:24 ` Daniel Palmer
2021-02-10 12:54 ` Tony Lindgren
2021-02-10 12:56 ` Hector Martin
2021-02-10 12:55 ` Krzysztof Kozlowski
2021-02-10 13:19 ` Tony Lindgren
2021-02-10 13:25 ` Krzysztof Kozlowski
[not found] ` <a2825482e2f68c2f8cad7cb564414759@kernel.org>
2021-02-08 14:53 ` Hector Martin
2021-02-05 11:35 ` [PATCH 00/18] Apple M1 SoC platform bring-up Hector Martin 'marcan'
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