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| author |   Muli Ben-Yehuda <muli@il.ibm.com> | 2006-09-26 10:52:33 +0200 |
|---|---|---|
| committer |   Andi Kleen <andi@basil.nowhere.org> | 2006-09-26 10:52:33 +0200 |
| commit | de684652f34f57cb60d4d78d09139a0e0c5e7b1b (patch) | |
| tree | bc3f7dd5a91086ceb51d4cb5fcc1f77095f2b713 /arch/x86_64/kernel/pci-calgary.c | |
| parent | [PATCH] i386/x86-64: rename is_at_popf(), add iret to tests and fix (diff) | |
| download | linux-dev-de684652f34f57cb60d4d78d09139a0e0c5e7b1b.tar.xz linux-dev-de684652f34f57cb60d4d78d09139a0e0c5e7b1b.zip | |
[PATCH] print whether CONFIG_IOMMU_DEBUG is enabled
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Jon Mason <jdmason@us.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/x86_64/kernel/pci-calgary.c')
| -rw-r--r-- | arch/x86_64/kernel/pci-calgary.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c index caf84e4e4ca9..ebe4e930b64d 100644 --- a/arch/x86_64/kernel/pci-calgary.c +++ b/arch/x86_64/kernel/pci-calgary.c @@ -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; |