diff options
| author | Joerg Roedel <joerg.roedel@amd.com> | 2011-12-01 16:53:47 +0100 |
|---|---|---|
| committer | Hiroshi DOYU <hdoyu@nvidia.com> | 2012-01-23 11:11:41 +0200 |
| commit | b485e361e1d043a90b1e03704b732e9b0aeec5e4 (patch) | |
| tree | b38e4554c290a29967e8c2e54a808cd18da6549d /drivers/iommu | |
| parent | 85cbac345ddd3d591e1b42ad95381efbf22340d4 (diff) | |
iommu/amd: Add stat counter for IOMMUv2 events
Add some interesting statistic counters for events when
IOMMUv2 is active.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 1d18ea889efb..32fc99c701e6 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -377,6 +377,11 @@ DECLARE_STATS_COUNTER(domain_flush_single); DECLARE_STATS_COUNTER(domain_flush_all); DECLARE_STATS_COUNTER(alloced_io_mem); DECLARE_STATS_COUNTER(total_map_requests); +DECLARE_STATS_COUNTER(complete_ppr); +DECLARE_STATS_COUNTER(invalidate_iotlb); +DECLARE_STATS_COUNTER(invalidate_iotlb_all); +DECLARE_STATS_COUNTER(pri_requests); + static struct dentry *stats_dir; static struct dentry *de_fflush; @@ -411,6 +416,10 @@ static void amd_iommu_stats_init(void) amd_iommu_stats_add(&domain_flush_all); amd_iommu_stats_add(&alloced_io_mem); amd_iommu_stats_add(&total_map_requests); + amd_iommu_stats_add(&complete_ppr); + amd_iommu_stats_add(&invalidate_iotlb); + amd_iommu_stats_add(&invalidate_iotlb_all); + amd_iommu_stats_add(&pri_requests); } #endif @@ -527,6 +536,8 @@ static void iommu_handle_ppr_entry(struct amd_iommu *iommu, u32 head) volatile u64 *raw; int i; + INC_STATS_COUNTER(pri_requests); + raw = (u64 *)(iommu->ppr_log + head); /* @@ -3393,6 +3404,8 @@ out: static int __amd_iommu_flush_page(struct protection_domain *domain, int pasid, u64 address) { + INC_STATS_COUNTER(invalidate_iotlb); + return __flush_pasid(domain, pasid, address, false); } @@ -3413,6 +3426,8 @@ EXPORT_SYMBOL(amd_iommu_flush_page); static int __amd_iommu_flush_tlb(struct protection_domain *domain, int pasid) { + INC_STATS_COUNTER(invalidate_iotlb_all); + return __flush_pasid(domain, pasid, CMD_INV_IOMMU_ALL_PAGES_ADDRESS, true); } @@ -3532,6 +3547,8 @@ int amd_iommu_complete_ppr(struct pci_dev *pdev, int pasid, struct amd_iommu *iommu; struct iommu_cmd cmd; + INC_STATS_COUNTER(complete_ppr); + dev_data = get_dev_data(&pdev->dev); iommu = amd_iommu_rlookup_table[dev_data->devid]; |