From: Dave Gerlach <d-gerlach@ti.com>
To: <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>,
<linux-arch@vger.kernel.org>, <devicetree@vger.kernel.org>
Cc: Russ Dill <russ.dill@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Arnd Bergmann <arnd@arndb.de>,
Philipp Zabel <p.zabel@pengutronix.de>,
Shawn Guo <shawn.guo@freescale.com>,
Tony Lindgren <tony@atomide.com>, <Anson.Huang@freescale.com>,
Dave Gerlach <d-gerlach@ti.com>
Subject: [RFC PATCH 0/2] Add ioremap_exec enhancements
Date: Wed, 26 Nov 2014 15:13:59 -0600 [thread overview]
Message-ID: <cover.1417029918.git.d-gerlach@ti.com> (raw)
Hi,
Some platforms need the ability to ioremap memory for use with small
chunks of code, like in certain PM applications that run from sram.
This series provides a common way to call an arch's ioremap_exec, which
currently only exists for ARM, so that we can use it in the generic
sram driver in a forthcoming patch.
This patch is part of a patch series split into several smaller sets
for introducing suspend on AM335x. I plan to use it to copy several
pieces of ASM code from an EMIF driver and the SoC PM code to run from
SRAM on the SoC. I have pushed a branch here [1] based on v3.18-rc6
with all required patches so that the higher level plan for these
patches can be seen.
Regards,
Dave
[1] https://github.com/dgerlach/linux-pm/tree/rfc-pm-am335x-v3.18-rc6
Russ Dill (2):
asm-generic: io: Add exec versions of ioremap
lib: devres: Add exec versions of devm_ioremap_resource and friends
arch/arm/include/asm/io.h | 2 +
include/asm-generic/iomap.h | 5 ++
include/linux/device.h | 19 ++++++-
include/linux/io.h | 9 +++-
lib/devres.c | 125 ++++++++++++++++++++++++++++++++++++++++++--
5 files changed, 154 insertions(+), 6 deletions(-)
--
2.1.0
next reply other threads:[~2014-11-26 21:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-26 21:13 Dave Gerlach [this message]
2014-11-26 21:14 ` [RFC PATCH 1/2] asm-generic: io: Add exec versions of ioremap Dave Gerlach
2014-11-26 21:32 ` Arnd Bergmann
2014-11-26 21:14 ` [RFC PATCH 2/2] lib: devres: Add exec versions of devm_ioremap_resource and friends Dave Gerlach
2014-11-27 9:41 ` Geert Uytterhoeven
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