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Commit 9b156845 authored by Adam Jackson's avatar Adam Jackson Committed by Ingo Molnar
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x86, debug printouts: IOMMU setup failures should not be KERN_ERR 



The number of BIOSes that have an option to enable the IOMMU, or fix
anything about its configuration, is vanishingly small.  There's no good
reason to punish quiet boot for this.

Signed-off-by: default avatarAdam Jackson <ajax@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 12544697

arch/x86/kernel/aperture_64.c

+3 −3
Original line number Diff line number Diff line
@@ -455,11 +455,11 @@ void __init gart_iommu_hole_init(void) 
		   force_iommu ||

		   valid_agp ||

		   fallback_aper_force) {

		printk(KERN_ERR

		printk(KERN_INFO

			"Your BIOS doesn't leave a aperture memory hole\n");

		printk(KERN_ERR

		printk(KERN_INFO

			"Please enable the IOMMU option in the BIOS setup\n");

		printk(KERN_ERR

		printk(KERN_INFO

			"This costs you %d MB of RAM\n",

				32 << fallback_aper_order);

include/asm-x86/gart.h

+3 −3
Original line number Diff line number Diff line
@@ -52,15 +52,15 @@ static inline int aperture_valid(u64 aper_base, u32 aper_size, u32 min_size) 
		return 0;



	if (aper_base + aper_size > 0x100000000ULL) {

		printk(KERN_ERR "Aperture beyond 4GB. Ignoring.\n");

		printk(KERN_INFO "Aperture beyond 4GB. Ignoring.\n");

		return 0;

	}

	if (e820_any_mapped(aper_base, aper_base + aper_size, E820_RAM)) {

		printk(KERN_ERR "Aperture pointing to e820 RAM. Ignoring.\n");

		printk(KERN_INFO "Aperture pointing to e820 RAM. Ignoring.\n");

		return 0;

	}

	if (aper_size < min_size) {

		printk(KERN_ERR "Aperture too small (%d MB) than (%d MB)\n",

		printk(KERN_INFO "Aperture too small (%d MB) than (%d MB)\n",

				 aper_size>>20, min_size>>20);

		return 0;

	}