From: Greg KH <gregkh@linuxfoundation.org>
To: Benjamin Gaignard <benjamin.gaignard@st.com>
Cc: broonie@kernel.org, robh@kernel.org, arnd@arndb.de,
shawnguo@kernel.org, s.hauer@pengutronix.de,
fabio.estevam@nxp.com, sudeep.holla@arm.com, lkml@metux.net,
loic.pallardy@st.com, linux-kernel@vger.kernel.org,
linux-imx@nxp.com, kernel@pengutronix.de,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
system-dt@lists.openampproject.org,
stefano.stabellini@xilinx.com
Subject: Re: [PATCH v2 2/7] bus: Introduce firewall controller framework
Date: Tue, 28 Jan 2020 16:52:43 +0100 [thread overview]
Message-ID: <20200128155243.GC3438643@kroah.com> (raw)
In-Reply-To: <20200128153806.7780-3-benjamin.gaignard@st.com>
On Tue, Jan 28, 2020 at 04:38:01PM +0100, Benjamin Gaignard wrote:
> The goal of this framework is to offer an interface for the
> hardware blocks controlling bus accesses rights.
>
> Bus firewall controllers are typically used to control if a
> hardware block can perform read or write operations on bus.
So put this in the bus-specific code that controls the bus that these
devices live on. Why put it in the driver core when this is only on one
"bus" (i.e. the catch-all-and-a-bag-of-chips platform bus)?
And really, this should just be a totally new bus type, right? And any
devices on this bus should be changed to be on this new bus, and the
drivers changed to support them, instead of trying to overload the
platform bus with more stuff.
thanks,
greg k-h
next prev parent reply other threads:[~2020-01-28 15:52 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-28 15:37 [PATCH v2 0/7] Introduce bus firewall controller framework Benjamin Gaignard
2020-01-28 15:38 ` [PATCH v2 1/7] dt-bindings: bus: Add firewall bindings Benjamin Gaignard
2020-01-28 15:38 ` [PATCH v2 2/7] bus: Introduce firewall controller framework Benjamin Gaignard
2020-01-28 15:52 ` Greg KH [this message]
2020-01-28 16:41 ` Benjamin GAIGNARD
2020-01-28 16:57 ` Greg KH
2020-01-28 20:29 ` Benjamin GAIGNARD
2020-01-29 5:49 ` Greg KH
2020-01-29 9:42 ` Linus Walleij
2020-01-29 9:52 ` Greg KH
2020-01-29 11:17 ` Mark Brown
2020-01-31 8:37 ` Benjamin GAIGNARD
2020-01-31 9:06 ` Greg KH
2020-02-14 16:05 ` Linus Walleij
2020-02-14 21:40 ` Greg KH
2020-02-15 12:41 ` Benjamin GAIGNARD
2020-02-16 7:21 ` Greg KH
2020-01-28 15:38 ` [PATCH v2 3/7] base: Add calls to firewall controller Benjamin Gaignard
2020-01-28 15:38 ` [PATCH v2 4/7] dt-bindings: bus: Add STM32 ETZPC " Benjamin Gaignard
2020-01-28 15:38 ` [PATCH v2 5/7] bus: firewall: Add driver for STM32 ETZPC controller Benjamin Gaignard
2020-01-28 15:38 ` [PATCH v2 6/7] ARM: dts: stm32: Add firewall node for stm32mp157 SoC Benjamin Gaignard
2020-01-28 15:38 ` [PATCH v2 7/7] ARM: dts: stm32: enable firewall controller node on stm32mp157c-ed1 Benjamin Gaignard
2020-01-28 16:36 ` [PATCH v2 0/7] Introduce bus firewall controller framework Sudeep Holla
2020-01-28 16:46 ` Benjamin GAIGNARD
2020-01-28 17:17 ` Sudeep Holla
2020-01-28 20:06 ` Benjamin GAIGNARD
2020-01-28 22:06 ` Robin Murphy
2020-01-29 13:40 ` Benjamin GAIGNARD
2020-01-31 18:25 ` Robin Murphy
2020-02-03 13:16 ` Benjamin GAIGNARD
2020-01-31 20:51 ` Florian Fainelli
2020-02-03 13:41 ` Benjamin GAIGNARD
2020-01-31 20:48 ` Florian Fainelli
2020-02-02 12:23 ` Mark Brown
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