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Commit de684652 authored by Muli Ben-Yehuda's avatar Muli Ben-Yehuda Committed by Andi Kleen
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[PATCH] print whether CONFIG_IOMMU_DEBUG is enabled 



Signed-off-by: default avatarMuli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: default avatarJon Mason <jdmason@us.ibm.com>
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
parent 2ade2920

arch/x86_64/kernel/pci-calgary.c

+10 −4
Original line number Diff line number Diff line
@@ -127,15 +127,19 @@ static void tce_cache_blast(struct iommu_table *tbl); 


/* enable this to stress test the chip's TCE cache */

#ifdef CONFIG_IOMMU_DEBUG

int debugging __read_mostly = 1;



static inline void tce_cache_blast_stress(struct iommu_table *tbl)

{

	tce_cache_blast(tbl);

}

#else

#else /* debugging is disabled */

int debugging __read_mostly = 0;



static inline void tce_cache_blast_stress(struct iommu_table *tbl)

{

}

#endif /* BLAST_TCE_CACHE_ON_UNMAP */

#endif /* CONFIG_IOMMU_DEBUG */



static inline unsigned int num_dma_pages(unsigned long dma, unsigned int dmalen)

{
@@ -944,8 +948,10 @@ void __init detect_calgary(void) 
	if (calgary_found) {

		iommu_detected = 1;

		calgary_detected = 1;

		printk(KERN_INFO "PCI-DMA: Calgary IOMMU detected. "

		       "TCE table spec is %d.\n", specified_table_size);

		printk(KERN_INFO "PCI-DMA: Calgary IOMMU detected.\n");

		printk(KERN_INFO "PCI-DMA: Calgary TCE table spec is %d, "

		       "CONFIG_IOMMU_DEBUG is %s.\n", specified_table_size,

		       debugging ? "enabled" : "disabled");

	}

	return;