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Message-ID: <550C4DC1.3090909@gmail.com> Date: Fri, 20 Mar 2015 19:41:37 +0300 From: Dmitry Osipenko <digetx@...il.com> To: Stephen Warren <swarren@...dotorg.org> CC: Thierry Reding <thierry.reding@...il.com>, Alexandre Courbot <gnurou@...il.com>, linux-tegra@...r.kernel.org, Russell King <linux@....linux.org.uk>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] ARM: trusted_foundations: Maintain CPU endianness 20.03.2015 19:07, Stephen Warren пишет: > On 03/20/2015 09:36 AM, Dmitry Osipenko wrote: >> Convert CPU reset vector address to LE to support big-endian kernel. > > Naively this sounds a little odd; the value here is in a CPU register all the > time, not in memory, so I'm not sure why endianness is relevant? Presumably the > CPU doesn't end up byte-swapping values in registers when running in BE mode or > it takes an SMC? If it does, why don't we need > cpu_to_le32(TF_SET_CPU_BOOT_ADDR_SMC) too? > > Sorry if this is a silly question; I haven't followed any of the BE kernel patches. You absolutely right. I goofed it by replacing 'smc' with 'str' without adding reg reverse for BE when was testing and then blindly made patch. Please ignore it and sorry for the noise. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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