diff options
| author |   M Chetan Kumar <m.chetan.kumar@linux.intel.com> | 2022-11-07 13:05:02 +0530 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-11-09 14:00:25 +0000 |
| commit | 035e3befc191347331dd2530c3686e05a8acfbb2 (patch) | |
| tree | 8c6a49fbca80df77e02c7383f675e07bbe1ed223 /drivers/net/wwan/iosm/iosm_ipc_pcie.c | |
| parent | net: wwan: iosm: fix memory leak in ipc_pcie_read_bios_cfg (diff) | |
| download | linux-dev-035e3befc191347331dd2530c3686e05a8acfbb2.tar.xz linux-dev-035e3befc191347331dd2530c3686e05a8acfbb2.zip | |
net: wwan: iosm: fix driver not working with INTEL_IOMMU disabled
With INTEL_IOMMU disable config or by forcing intel_iommu=off from
grub some of the features of IOSM driver like browsing, flashing &
coredump collection is not working.
When driver calls DMA API - dma_map_single() for tx transfers. It is
resulting in dma mapping error.
Set the device DMA addressing capabilities using dma_set_mask() and
remove the INTEL_IOMMU dependency in kconfig so that driver follows
the platform config either INTEL_IOMMU enable or disable.
Fixes: f7af616c632e ("net: iosm: infrastructure")
Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/wwan/iosm/iosm_ipc_pcie.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wwan/iosm/iosm_ipc_pcie.c b/drivers/net/wwan/iosm/iosm_ipc_pcie.c index 97cb6846c6ae..d3d34d1c4704 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_pcie.c +++ b/drivers/net/wwan/iosm/iosm_ipc_pcie.c @@ -259,6 +259,7 @@ static int ipc_pcie_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { struct iosm_pcie *ipc_pcie = kzalloc(sizeof(*ipc_pcie), GFP_KERNEL); + int ret; pr_debug("Probing device 0x%X from the vendor 0x%X", pci_id->device, pci_id->vendor); @@ -291,6 +292,12 @@ static int ipc_pcie_probe(struct pci_dev *pci, goto pci_enable_fail; } + ret = dma_set_mask(ipc_pcie->dev, DMA_BIT_MASK(64)); + if (ret) { + dev_err(ipc_pcie->dev, "Could not set PCI DMA mask: %d", ret); + return ret; + } + ipc_pcie_config_aspm(ipc_pcie); dev_dbg(ipc_pcie->dev, "PCIe device enabled."); |