From: Richard Henderson <richard.henderson@linaro.org>
To: Peter Maydell <peter.maydell@linaro.org>,
qemu-arm@nongnu.org, qemu-devel@nongnu.org
Cc: patches@linaro.org
Subject: Re: [Qemu-devel] [PATCH 12/19] hw/core/split-irq: Device that splits IRQ lines
Date: Tue, 27 Feb 2018 12:58:09 -0800 [thread overview]
Message-ID: <9a91e29e-8109-1cce-2b19-f70e1f20fdb3@linaro.org> (raw)
In-Reply-To: <20180220180325.29818-13-peter.maydell@linaro.org>
On 02/20/2018 10:03 AM, Peter Maydell wrote:
> In some board or SoC models it is necessary to split a qemu_irq line
> so that one input can feed multiple outputs. We currently have
> qemu_irq_split() for this, but that has several deficiencies:
> * it can only handle splitting a line into two
> * it unavoidably leaks memory, so it can't be used
> in a device that can be deleted
>
> Implement a qdev device that encapsulates splitting of IRQs, with a
> configurable number of outputs. (This is in some ways the inverse of
> the TYPE_OR_IRQ device.)
>
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
> ---
> hw/core/Makefile.objs | 1 +
> include/hw/core/split-irq.h | 57 +++++++++++++++++++++++++++++
> include/hw/irq.h | 4 +-
> hw/core/split-irq.c | 89 +++++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 150 insertions(+), 1 deletion(-)
> create mode 100644 include/hw/core/split-irq.h
> create mode 100644 hw/core/split-irq.c
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
next prev parent reply other threads:[~2018-02-27 20:58 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-20 18:03 [Qemu-devel] [PATCH 00/19] Add Cortex-M33 and mps2-an505 board model Peter Maydell
2018-02-20 18:03 ` [Qemu-devel] [PATCH 01/19] loader: Add new load_ramdisk_as() Peter Maydell
2018-02-24 4:40 ` Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 02/19] hw/arm/boot: Honour CPU's address space for image loads Peter Maydell
2018-02-24 4:56 ` Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 03/19] hw/arm/armv7m: " Peter Maydell
2018-02-24 5:08 ` Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 04/19] target/arm: Define an IDAU interface Peter Maydell
2018-02-27 19:32 ` Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 05/19] armv7m: Forward idau property to CPU object Peter Maydell
2018-02-27 19:53 ` Richard Henderson
2018-03-01 16:00 ` [Qemu-devel] [Qemu-arm] " Peter Maydell
2018-02-20 18:03 ` [Qemu-devel] [PATCH 06/19] target/arm: Define init-svtor property for the reset secure VTOR value Peter Maydell
2018-02-27 20:18 ` Richard Henderson
2018-03-01 12:40 ` Peter Maydell
2018-02-20 18:03 ` [Qemu-devel] [PATCH 07/19] armv7m: Forward init-svtor property to CPU object Peter Maydell
2018-02-27 20:26 ` Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 08/19] target/arm: Add Cortex-M33 Peter Maydell
2018-02-27 20:47 ` Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 09/19] hw/misc/unimp: Move struct to header file Peter Maydell
2018-02-20 18:27 ` [Qemu-devel] [Qemu-arm] " Philippe Mathieu-Daudé
2018-02-27 20:50 ` [Qemu-devel] " Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 10/19] include/hw/or-irq.h: Add missing include guard Peter Maydell
2018-02-20 18:25 ` Philippe Mathieu-Daudé
2018-02-27 20:51 ` Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 11/19] qdev: Add new qdev_init_gpio_in_named_with_opaque() Peter Maydell
2018-02-20 18:26 ` [Qemu-devel] [Qemu-arm] " Philippe Mathieu-Daudé
2018-02-27 20:52 ` [Qemu-devel] " Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 12/19] hw/core/split-irq: Device that splits IRQ lines Peter Maydell
2018-02-27 20:58 ` Richard Henderson [this message]
2018-02-20 18:03 ` [Qemu-devel] [PATCH 13/19] hw/misc/mps2-fpgaio: FPGA control block for MPS2 AN505 Peter Maydell
2018-02-27 21:11 ` Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 14/19] hw/misc/tz-ppc: Model TrustZone peripheral protection controller Peter Maydell
2018-02-27 21:36 ` Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 15/19] hw/misc/iotkit-secctl: Arm IoT Kit security controller initial skeleton Peter Maydell
2018-02-27 21:44 ` Richard Henderson
2018-03-01 12:44 ` Peter Maydell
2018-02-20 18:03 ` [Qemu-devel] [PATCH 16/19] hw/misc/iotkit-secctl: Add handling for PPCs Peter Maydell
2018-02-27 21:54 ` Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 17/19] hw/misc/iotkit-secctl: Add remaining simple registers Peter Maydell
2018-02-27 22:00 ` Richard Henderson
2018-03-01 12:47 ` Peter Maydell
2018-02-20 18:03 ` [Qemu-devel] [PATCH 18/19] hw/arm/iotkit: Model Arm IOT Kit Peter Maydell
2018-02-27 22:49 ` Richard Henderson
2018-02-20 18:03 ` [Qemu-devel] [PATCH 19/19] mps2-an505: New board model: MPS2 with AN505 Cortex-M33 FPGA image Peter Maydell
2018-02-21 10:30 ` Igor Mammedov
2018-03-01 12:50 ` Peter Maydell
2018-02-27 22:50 ` Richard Henderson
2018-02-22 19:03 ` [Qemu-devel] [PATCH 00/19] Add Cortex-M33 and mps2-an505 board model no-reply
2018-02-22 19:11 ` Peter Maydell
2018-02-22 21:55 ` Eric Blake
2018-02-24 6:19 ` no-reply
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