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| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-12-12 17:48:28 +0300 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-01-03 16:11:59 +0300 |
| commit | 18811f55d48e5f3ee70c4744c592f940022fa592 (patch) | |
| tree | 626f9661a133e83780f3cc6e7c25691d1cccb970 /arch | |
| parent | f57d98ae6979f7bcbf758023b4716f485385f903 (diff) | |
| download | linux-18811f55d48e5f3ee70c4744c592f940022fa592.tar.xz | |
AMD IOMMU: add stats counter for domain tlb flushes
Impact: see number of domain tlb flushes in debugfs
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index e99022d3a394..a897c7246dca 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -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); |