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Message-ID: <20080313100531.GA3399@elf.ucw.cz> Date: Thu, 13 Mar 2008 11:05:31 +0100 From: Pavel Machek <pavel@....cz> To: ak@...e.de, kernel list <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>, "Rafael J. Wysocki" <rjw@...k.pl>, Len Brown <len.brown@...el.com> Subject: fix aperture vs. suspend problem aperture_64.c takes a piece of memory and makes it into iommu window... but such window may not be saved by swsusp -- that leads to oops during suspend. Signed-off-by: Pavel Machek <pavel@...e.cz> diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index 608152a..88747f3 100644 --- a/arch/x86/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c @@ -18,6 +18,7 @@ #include <linux/pci_ids.h> #include <linux/pci.h> #include <linux/bitops.h> #include <linux/ioport.h> +#include <linux/suspend.h> #include <asm/e820.h> #include <asm/io.h> #include <asm/gart.h> @@ -76,6 +77,7 @@ static u32 __init allocate_aperture(void printk(KERN_INFO "Mapping aperture over %d KB of RAM @ %lx\n", aper_size >> 10, __pa(p)); insert_aperture_resource((u32)__pa(p), aper_size); + register_nosave_region((u32)__pa(p) >> PAGE_SHIFT, (u32)__pa(p+aper_size) >> PAGE_SHIFT); return (u32)__pa(p); } -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- 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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