Commit f57d98ae authored by Joerg Roedel's avatar Joerg Roedel
Browse files

AMD IOMMU: add stats counter for single iommu domain tlb flushes



Impact: see number of single iommu domain tlb flushes in debugfs
Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent c1858976
......@@ -72,6 +72,7 @@ DECLARE_STATS_COUNTER(cnt_unmap_sg);
DECLARE_STATS_COUNTER(cnt_alloc_coherent);
DECLARE_STATS_COUNTER(cnt_free_coherent);
DECLARE_STATS_COUNTER(cross_page);
DECLARE_STATS_COUNTER(domain_flush_single);
static struct dentry *stats_dir;
static struct dentry *de_isolate;
......@@ -106,6 +107,7 @@ static void amd_iommu_stats_init(void)
amd_iommu_stats_add(&cnt_alloc_coherent);
amd_iommu_stats_add(&cnt_free_coherent);
amd_iommu_stats_add(&cross_page);
amd_iommu_stats_add(&domain_flush_single);
}
#endif
......@@ -413,6 +415,8 @@ static void iommu_flush_tlb(struct amd_iommu *iommu, u16 domid)
{
u64 address = CMD_INV_IOMMU_ALL_PAGES_ADDRESS;
INC_STATS_COUNTER(domain_flush_single);
iommu_queue_inv_iommu_pages(iommu, address, domid, 0, 1);
}
......
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