From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: Damien Hedde <damien.hedde@greensocs.com>, qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, berrange@redhat.com,
ehabkost@redhat.com, alistair@alistair23.me,
mark.burton@greensocs.com, marcandre.lureau@redhat.com,
qemu-arm@nongnu.org, pbonzini@redhat.com,
edgar.iglesias@gmail.com
Subject: Re: [PATCH v6 1/9] hw/core/clock: introduce clock objects
Date: Mon, 25 Nov 2019 14:07:06 +0100 [thread overview]
Message-ID: <560f9a2f-b604-69e7-7114-13e167102872@redhat.com> (raw)
In-Reply-To: <20190904125531.27545-2-damien.hedde@greensocs.com>
On 9/4/19 2:55 PM, Damien Hedde wrote:
> Introduce clock objects: ClockIn and ClockOut.
>
> These objects may be used to distribute clocks from an object to several
> other objects. Each ClockIn object contains the current state of the
> clock: the frequency; it allows an object to migrate its input clock state
> independently of other objects.
>
> A ClockIn may be connected to a ClockOut so that it receives update,
> through a callback, whenever the Clockout is updated using the
> ClockOut's set function.
>
> This is based on the original work of Frederic Konrad.
>
> Signed-off-by: Damien Hedde <damien.hedde@greensocs.com>
> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
> Makefile.objs | 1 +
> hw/core/Makefile.objs | 1 +
> hw/core/clock.c | 144 ++++++++++++++++++++++++++++++++++++++++++
> hw/core/trace-events | 6 ++
> include/hw/clock.h | 124 ++++++++++++++++++++++++++++++++++++
> 5 files changed, 276 insertions(+)
> create mode 100644 hw/core/clock.c
> create mode 100644 include/hw/clock.h
>
> diff --git a/Makefile.objs b/Makefile.objs
> index a723a47e14..4da623c759 100644
> --- a/Makefile.objs
> +++ b/Makefile.objs
> @@ -153,6 +153,7 @@ trace-events-subdirs += hw/audio
> trace-events-subdirs += hw/block
> trace-events-subdirs += hw/block/dataplane
> trace-events-subdirs += hw/char
> +trace-events-subdirs += hw/core
> trace-events-subdirs += hw/dma
> trace-events-subdirs += hw/hppa
> trace-events-subdirs += hw/i2c
> diff --git a/hw/core/Makefile.objs b/hw/core/Makefile.objs
> index 69b408ad1c..c66a5b2c6b 100644
> --- a/hw/core/Makefile.objs
> +++ b/hw/core/Makefile.objs
> @@ -7,6 +7,7 @@ common-obj-$(CONFIG_SOFTMMU) += fw-path-provider.o
> # irq.o needed for qdev GPIO handling:
> common-obj-y += irq.o
> common-obj-y += hotplug.o
> +common-obj-y += clock.o
> common-obj-$(CONFIG_SOFTMMU) += nmi.o
> common-obj-$(CONFIG_SOFTMMU) += vm-change-state-handler.o
>
> diff --git a/hw/core/clock.c b/hw/core/clock.c
> new file mode 100644
> index 0000000000..888f247f2a
> --- /dev/null
> +++ b/hw/core/clock.c
> @@ -0,0 +1,144 @@
> +/*
> + * Clock inputs and outputs
> + *
> + * Copyright GreenSocs 2016-2018
2019 now?
> + *
> + * Authors:
> + * Frederic Konrad <fred.konrad@greensocs.com>
> + * Damien Hedde <damien.hedde@greensocs.com>
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or later.
> + * See the COPYING file in the top-level directory.
> + */
next prev parent reply other threads:[~2019-11-25 13:21 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-04 12:55 [Qemu-devel] [PATCH v6 0/9] Clock framework API Damien Hedde
2019-09-04 12:55 ` [Qemu-devel] [PATCH v6 1/9] hw/core/clock: introduce clock objects Damien Hedde
2019-11-25 13:07 ` Philippe Mathieu-Daudé [this message]
2019-11-25 13:37 ` Philippe Mathieu-Daudé
2019-12-03 15:14 ` Damien Hedde
2019-12-02 13:42 ` Peter Maydell
2019-12-03 15:28 ` Damien Hedde
2019-09-04 12:55 ` [Qemu-devel] [PATCH v6 2/9] hw/core/clock-vmstate: define a vmstate entry for clock state Damien Hedde
2019-11-25 13:05 ` Philippe Mathieu-Daudé
2019-12-02 13:44 ` Peter Maydell
2019-09-04 12:55 ` [Qemu-devel] [PATCH v6 3/9] qdev: add clock input&output support to devices Damien Hedde
2019-11-25 13:30 ` Philippe Mathieu-Daudé
2019-12-03 15:35 ` Damien Hedde
2019-12-02 14:34 ` Peter Maydell
2019-12-04 9:05 ` Damien Hedde
2019-12-04 9:53 ` Philippe Mathieu-Daudé
2019-12-04 11:58 ` Damien Hedde
2019-09-04 12:55 ` [Qemu-devel] [PATCH v6 4/9] qdev-monitor: print the device's clock with info qtree Damien Hedde
2019-12-02 14:35 ` Peter Maydell
2019-09-04 12:55 ` [Qemu-devel] [PATCH v6 5/9] qdev-clock: introduce an init array to ease the device construction Damien Hedde
2019-12-02 15:13 ` Peter Maydell
2019-12-04 11:04 ` Damien Hedde
2019-09-04 12:55 ` [Qemu-devel] [PATCH v6 6/9] docs/clocks: add device's clock documentation Damien Hedde
2019-12-02 15:17 ` Peter Maydell
2019-12-04 12:11 ` Damien Hedde
2019-09-04 12:55 ` [Qemu-devel] [PATCH v6 7/9] hw/misc/zynq_slcr: add clock generation for uarts Damien Hedde
2019-12-02 15:20 ` Peter Maydell
2019-12-04 12:51 ` Damien Hedde
2019-09-04 12:55 ` [Qemu-devel] [PATCH v6 8/9] hw/char/cadence_uart: add clock support Damien Hedde
2019-12-02 15:24 ` Peter Maydell
2019-12-04 13:35 ` Damien Hedde
2019-09-04 12:55 ` [Qemu-devel] [PATCH v6 9/9] hw/arm/xilinx_zynq: connect uart clocks to slcr Damien Hedde
2019-12-02 15:34 ` Peter Maydell
2019-12-03 14:59 ` Damien Hedde
2019-12-03 15:29 ` Philippe Mathieu-Daudé
2019-12-02 16:15 ` [PATCH v6 0/9] Clock framework API Peter Maydell
2019-12-04 16:40 ` Damien Hedde
2019-12-04 20:34 ` Philippe Mathieu-Daudé
2019-12-05 9:36 ` Damien Hedde
2019-12-05 9:59 ` Philippe Mathieu-Daudé
2019-12-05 10:21 ` Dr. David Alan Gilbert
2019-12-05 10:44 ` Philippe Mathieu-Daudé
2019-12-05 10:56 ` Dr. David Alan Gilbert
2019-12-05 11:01 ` Philippe Mathieu-Daudé
2019-12-06 12:46 ` Cleber Rosa
2019-12-06 13:48 ` Dr. David Alan Gilbert
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