Commit 18811f55 authored by Joerg Roedel's avatar Joerg Roedel

AMD IOMMU: add stats counter for domain tlb flushes

Impact: see number of domain tlb flushes in debugfs
Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent f57d98ae
......@@ -73,6 +73,7 @@ DECLARE_STATS_COUNTER(cnt_alloc_coherent);
DECLARE_STATS_COUNTER(cnt_free_coherent);
DECLARE_STATS_COUNTER(cross_page);
DECLARE_STATS_COUNTER(domain_flush_single);
DECLARE_STATS_COUNTER(domain_flush_all);
static struct dentry *stats_dir;
static struct dentry *de_isolate;
......@@ -108,6 +109,7 @@ static void amd_iommu_stats_init(void)
amd_iommu_stats_add(&cnt_free_coherent);
amd_iommu_stats_add(&cross_page);
amd_iommu_stats_add(&domain_flush_single);
amd_iommu_stats_add(&domain_flush_all);
}
#endif
......@@ -431,6 +433,8 @@ static void iommu_flush_domain(u16 domid)
struct amd_iommu *iommu;
struct iommu_cmd cmd;
INC_STATS_COUNTER(domain_flush_all);
__iommu_build_inv_iommu_pages(&cmd, CMD_INV_IOMMU_ALL_PAGES_ADDRESS,
domid, 1, 1);
......
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