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Date: Sun, 22 Nov 2015 13:29:29 +0000 From: Peter Maydell <peter.maydell@...aro.org> To: Arnd Bergmann <arnd@...db.de> Cc: Måns Rullgård <mans@...sr.com>, Nicolas Pitre <nico@...xnic.net>, "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>, Stephen Boyd <sboyd@...eaurora.org>, lkml - Kernel Mailing List <linux-kernel@...r.kernel.org>, Steven Rostedt <rostedt@...dmis.org>, arm-mail-list <linux-arm-kernel@...ts.infradead.org> Subject: Re: [RFC/PATCH 0/3] ARM: Use udiv/sdiv for __aeabi_{u}idiv library functions On 21 November 2015 at 23:21, Arnd Bergmann <arnd@...db.de> wrote: > Regarding PJ4, it's still unclear whether that has the same > problem and it only reports idivt when it actually supports idiva, > or whether the lack of idiva support on PJ4 is instead the reason > why the ARM ARM was updated to have separate flags. SDIV/IDIV were originally introduced for R and M profile only and there the Thumb encodings of SDIV/IDIV are mandatory whereas the ARM ones are optional (and weren't initially defined at all). So if you're looking for CPUs with only the Thumb encodings I would try checking older R profile cores like the Cortex-R4. thanks -- PMM -- 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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