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cnss2: record timestamps in smmu fault cb handler

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Record timestamps in smmu fault cb handler.

Change-Id: I96042ffdc81fcca8069d16bf74899412cf04183c
CRs-Fixed: 3487738
This commit is contained in:
Sandeep Singh
2023-05-03 21:38:51 +05:30
committed by Madan Koyyalamudi
parent 32e1756a19
commit 2dee0837c9
3 changed files with 58 additions and 0 deletions
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14
cnss2/pci.c
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@@ -909,12 +909,23 @@ void cnss_mhi_controller_set_base(struct cnss_pci_data *pci_priv,
#ifdef CONFIG_CNSS2_SMMU_DB_SUPPORT
#define CNSS_MHI_WAKE_TIMEOUT 500000
static void cnss_record_smmu_fault_timestamp(struct cnss_pci_data *pci_priv,
enum cnss_smmu_fault_time id)
{
if (id >= SMMU_CB_MAX)
return;
pci_priv->smmu_fault_timestamp[id] = sched_clock();
}
static void cnss_pci_smmu_fault_handler_irq(struct iommu_domain *domain,
void *handler_token)
{
struct cnss_pci_data *pci_priv = handler_token;
int ret = 0;
cnss_record_smmu_fault_timestamp(pci_priv, SMMU_CB_ENTRY);
ret = cnss_mhi_device_get_sync_atomic(pci_priv,
CNSS_MHI_WAKE_TIMEOUT, true);
if (ret < 0) {
@@ -922,9 +933,12 @@ static void cnss_pci_smmu_fault_handler_irq(struct iommu_domain *domain,
return;
}
cnss_record_smmu_fault_timestamp(pci_priv, SMMU_CB_DOORBELL_RING);
ret = cnss_mhi_host_notify_db_disable_trace(pci_priv);
if (ret < 0)
cnss_pr_err("Fail to notify wlan fw to stop trace collection, ret %d\n", ret);
cnss_record_smmu_fault_timestamp(pci_priv, SMMU_CB_EXIT);
}
void cnss_register_iommu_fault_handler_irq(struct cnss_pci_data *pci_priv)