From: viresh.kumar@st.com (viresh kumar)
To: linux-arm-kernel@lists.infradead.org
Subject: On __raw_readl readl_relaxed and readl nocheinmal
Date: Tue, 31 May 2011 12:42:38 +0530 [thread overview]
Message-ID: <4DE494E6.6000504@st.com> (raw)
In-Reply-To: <BANLkTimoRbokF4pnfMOf5WkPK+TyrHWwDg@mail.gmail.com>
Catalin,
On 05/20/2011 04:25 PM, Catalin Marinas wrote:
> On ARM it is guaranteed that the writes are issued in program order
> and they arrive to the same device in program order (the definition of
> the device is still debatable). Arriving at different devices in
> program order is not guaranteed (depends on the bus configuration).
> They also don't do any endianess conversions.
Is this guaranteed in case of ARMV7 also, where we have two ports coming
out of ARM ? As now there can be two access paths to devices, and so they
might come out of order.
--
viresh
next prev parent reply other threads:[~2011-05-31 7:12 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-20 10:04 On __raw_readl readl_relaxed and readl nocheinmal Linus Walleij
2011-05-20 10:42 ` Russell King - ARM Linux
2011-05-20 10:50 ` Arnd Bergmann
2011-05-20 10:55 ` Catalin Marinas
2011-05-27 12:07 ` Jamie Lokier
2011-05-27 14:37 ` Catalin Marinas
2011-05-27 14:14 ` Joakim BECH
2011-05-27 15:02 ` Catalin Marinas
2011-05-27 16:16 ` Arnd Bergmann
2011-05-27 16:38 ` Catalin Marinas
2011-05-27 17:10 ` Arnd Bergmann
2011-05-27 18:06 ` Russell King - ARM Linux
2011-05-29 9:24 ` Catalin Marinas
2011-05-27 18:04 ` Russell King - ARM Linux
2011-05-31 7:12 ` viresh kumar [this message]
2011-05-31 8:53 ` Catalin Marinas
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