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Date: Fri, 31 May 2013 16:18:50 +0100 From: Lee Jones <lee.jones@...aro.org> To: Arnd Bergmann <arnd@...db.de> Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linus.walleij@...ricsson.com, srinidhi.kasagar@...ricsson.com Subject: Re: [PATCH 2/2] ARM: ux500: Enable HIGHMEM in the u8540 defconfig On Fri, 31 May 2013, Arnd Bergmann wrote: > On Friday 31 May 2013 15:24:32 Lee Jones wrote: > > In order to utilise all of the memory located on ux500 based devices > > we have to enable HIGHMEM. Without it the kernel truncates memory down > > to what's left after the PAGE_OFFSET has been applied, which doesn't > > leave an awful lot, especially if we're running large rootfs' such > > as full Linux desktop distributions or Android. > > > > Signed-off-by: Lee Jones <lee.jones@...aro.org> > > How much memory do those devices have? Enabling HIGHMEM is quite expensive. Another 1GB. > > diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c > > index 5439925..808be06 100644 > > --- a/drivers/of/fdt.c > > +++ b/drivers/of/fdt.c > > You should probably resend the patch without the second half that got > in it by accident. I did already, thanks. -- Lee Jones Linaro ST-Ericsson Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- 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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