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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Tony Lindgren <tony@atomide.com>
Cc: "Pali Rohár" <pali.rohar@gmail.com>, "Nishanth Menon" <nm@ti.com>,
	linux-kernel@vger.kernel.org,
	"Ивайло Димитров" <freemangordon@abv.bg>,
	linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] arm: omap: RX-51: ARM errata 430973 workaround
Date: Thu, 28 Mar 2013 09:50:12 +0000	[thread overview]
Message-ID: <20130328095011.GS30923@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20130327205606.GN10155@atomide.com>

On Wed, Mar 27, 2013 at 01:56:07PM -0700, Tony Lindgren wrote:
> * Pali Rohár <pali.rohar@gmail.com> [130324 07:31]:
> > it is possible to upstream errata 430973 workaround for RX-51?
> 
> I think we should make the SMC handling a generic function for ARM.
> 
> AFAIK just the SMC call numbering is different for various
> implementations. So the handler and passing of the parameters
> seems like it should be generic.

SMC calls vary greatly in how they are handled.  The only thing that's
generic is issuing the SMC call.  All the setup and what arguments are
required are completely different from SoC to SoC.

For example, some SoCs require arguments passed via memory.  Others like
OMAP its via registers.

  parent reply	other threads:[~2013-03-28  9:50 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-01  7:47 [PATCH] arm: omap: RX-51: ARM errata 430973 workaround Ивайло Димитров
2013-03-01 14:38 ` Nishanth Menon
2013-03-04 18:58   ` Tony Lindgren
2013-03-06 14:09     ` Pali Rohár
2013-03-06 17:51       ` Tony Lindgren
2013-03-06 19:13         ` Pali Rohár
2013-03-24 14:26           ` Pali Rohár
2013-03-27 20:56             ` Tony Lindgren
2013-03-27 21:05               ` Pali Rohár
2013-03-27 21:12                 ` Tony Lindgren
2013-03-28  9:50               ` Russell King - ARM Linux [this message]
2013-03-28 10:07                 ` Santosh Shilimkar
2013-03-28 15:53                   ` Tony Lindgren
  -- strict thread matches above, loose matches on Subject: below --
2013-03-30 22:31 Ивайло Димитров
2013-03-31  7:37 ` Pavel Machek
2013-03-28  5:30 Ивайло Димитров
2013-03-28 15:58 ` Tony Lindgren
2013-03-06  9:32 Ивайло Димитров
2013-03-01 10:09 Ивайло Димитров
2013-03-01 23:51 ` Aaro Koskinen
2013-02-28  9:42 Pali Rohár
2013-02-28 14:40 ` Nishanth Menon
2013-03-01  9:43 ` Peter De Schrijver
2013-03-30 18:36 ` Pavel Machek

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