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>
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index e453bbd..2a46b1d 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -359,6 +359,11 @@
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;
@@ -393,6 +398,10 @@
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
@@ -509,6 +518,8 @@
volatile u64 *raw;
int i;
+ INC_STATS_COUNTER(pri_requests);
+
raw = (u64 *)(iommu->ppr_log + head);
/*
@@ -3356,6 +3367,8 @@
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);
}
@@ -3376,6 +3389,8 @@
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);
}
@@ -3495,6 +3510,8 @@
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];