diff options
| -rw-r--r-- | drivers/dma/idxd/cdev.c | 18 | ||||
| -rw-r--r-- | drivers/dma/idxd/idxd.h | 7 | ||||
| -rw-r--r-- | drivers/dma/idxd/irq.c | 4 |
3 files changed, 29 insertions, 0 deletions
diff --git a/drivers/dma/idxd/cdev.c b/drivers/dma/idxd/cdev.c index 0a51c33198f6..5c8e964e671b 100644 --- a/drivers/dma/idxd/cdev.c +++ b/drivers/dma/idxd/cdev.c @@ -39,6 +39,7 @@ struct idxd_user_context { struct mm_struct *mm; unsigned int flags; struct iommu_sva *sva; + u64 counters[COUNTER_MAX]; }; static void idxd_cdev_dev_release(struct device *dev) @@ -84,6 +85,23 @@ static void idxd_xa_pasid_remove(struct idxd_user_context *ctx) mutex_unlock(&wq->uc_lock); } +void idxd_user_counter_increment(struct idxd_wq *wq, u32 pasid, int index) +{ + struct idxd_user_context *ctx; + + if (index >= COUNTER_MAX) + return; + + mutex_lock(&wq->uc_lock); + ctx = xa_load(&wq->upasid_xa, pasid); + if (!ctx) { + mutex_unlock(&wq->uc_lock); + return; + } + ctx->counters[index]++; + mutex_unlock(&wq->uc_lock); +} + static int idxd_cdev_open(struct inode *inode, struct file *filp) { struct idxd_user_context *ctx; diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h index 4c4baa80c731..9fb26d017285 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -127,6 +127,12 @@ struct idxd_pmu { #define IDXD_MAX_PRIORITY 0xf +enum { + COUNTER_FAULTS = 0, + COUNTER_FAULT_FAILS, + COUNTER_MAX +}; + enum idxd_wq_state { IDXD_WQ_DISABLED = 0, IDXD_WQ_ENABLED, @@ -713,6 +719,7 @@ int idxd_wq_add_cdev(struct idxd_wq *wq); void idxd_wq_del_cdev(struct idxd_wq *wq); int idxd_copy_cr(struct idxd_wq *wq, ioasid_t pasid, unsigned long addr, void *buf, int len); +void idxd_user_counter_increment(struct idxd_wq *wq, u32 pasid, int index); /* perfmon */ #if IS_ENABLED(CONFIG_INTEL_IDXD_PERFMON) diff --git a/drivers/dma/idxd/irq.c b/drivers/dma/idxd/irq.c index c660d63a3eb8..f4b0f59c95ba 100644 --- a/drivers/dma/idxd/irq.c +++ b/drivers/dma/idxd/irq.c @@ -240,6 +240,7 @@ static void idxd_evl_fault_work(struct work_struct *work) evl->batch_fail[entry_head->batch_id] = false; copy_size = cr_size; + idxd_user_counter_increment(wq, entry_head->pasid, COUNTER_FAULTS); break; case DSA_COMP_BATCH_EVL_ERR: bf = &evl->batch_fail[entry_head->batch_id]; @@ -251,6 +252,7 @@ static void idxd_evl_fault_work(struct work_struct *work) *result = 1; *bf = false; } + idxd_user_counter_increment(wq, entry_head->pasid, COUNTER_FAULTS); break; case DSA_COMP_DRAIN_EVL: copy_size = cr_size; @@ -282,6 +284,7 @@ static void idxd_evl_fault_work(struct work_struct *work) switch (fault->status) { case DSA_COMP_CRA_XLAT: if (copied != copy_size) { + idxd_user_counter_increment(wq, entry_head->pasid, COUNTER_FAULT_FAILS); dev_dbg_ratelimited(dev, "Failed to write to completion record: (%d:%d)\n", copy_size, copied); if (entry_head->batch) @@ -290,6 +293,7 @@ static void idxd_evl_fault_work(struct work_struct *work) break; case DSA_COMP_BATCH_EVL_ERR: if (copied != copy_size) { + idxd_user_counter_increment(wq, entry_head->pasid, COUNTER_FAULT_FAILS); dev_dbg_ratelimited(dev, "Failed to write to batch completion record: (%d:%d)\n", copy_size, copied); } |