diff options
| author | Yue Ma <yuem@codeaurora.org> | 2017-02-01 14:22:09 -0800 |
|---|---|---|
| committer | Yue Ma <yuem@codeaurora.org> | 2017-07-07 09:44:28 -0700 |
| commit | 243575bddba07fd5a7c7df9ed2c406c11c059d7e (patch) | |
| tree | cc49d9cc186f7c2a97d479fc0089ef88932010db /drivers/net/wireless | |
| parent | abb697f2a19ff4f1e3e4a8b8fd306b361515c93c (diff) | |
cnss2: Bypass SMMU stage-1 by default
Bypass SMMU stage-1 till it is fully supported by WLAN driver and
device.
Change-Id: I186345c20f9b71171bba6acc8c5eaa689e39b51c
CRs-fixed: 2071634
Signed-off-by: Yue Ma <yuem@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/cnss2/pci.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/wireless/cnss2/pci.c b/drivers/net/wireless/cnss2/pci.c index 5f2d6bb8daff..f914f4352392 100644 --- a/drivers/net/wireless/cnss2/pci.c +++ b/drivers/net/wireless/cnss2/pci.c @@ -222,6 +222,7 @@ static int cnss_pci_init_smmu(struct cnss_pci_data *pci_priv) struct device *dev; struct dma_iommu_mapping *mapping; int atomic_ctx = 1; + int s1_bypass = 1; dev = &pci_priv->pci_dev->dev; @@ -243,6 +244,15 @@ static int cnss_pci_init_smmu(struct cnss_pci_data *pci_priv) goto release_mapping; } + ret = iommu_domain_set_attr(mapping->domain, + DOMAIN_ATTR_S1_BYPASS, + &s1_bypass); + if (ret) { + pr_err("Failed to set SMMU s1_bypass attribute, err = %d\n", + ret); + goto release_mapping; + } + ret = arm_iommu_attach_device(dev, mapping); if (ret) { pr_err("Failed to attach SMMU device, err = %d\n", ret); |