diff options
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-designware-host.c')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware-host.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 6993ce9e856d..ff3451a6b846 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -267,8 +267,9 @@ static void dw_pcie_free_msi(struct dw_pcie_rp *pp) struct dw_pcie *pci = to_dw_pcie_from_pp(pp); struct device *dev = pci->dev; - dma_unmap_single_attrs(dev, pp->msi_data, sizeof(pp->msi_msg), - DMA_FROM_DEVICE, DMA_ATTR_SKIP_CPU_SYNC); + dma_unmap_page(dev, pp->msi_data, PAGE_SIZE, DMA_FROM_DEVICE); + if (pp->msi_page) + __free_page(pp->msi_page); } } @@ -395,13 +396,14 @@ int dw_pcie_host_init(struct dw_pcie_rp *pp) if (ret) dev_warn(dev, "Failed to set DMA mask to 32-bit. Devices with only 32-bit MSI support may not work properly\n"); - pp->msi_data = dma_map_single_attrs(dev, &pp->msi_msg, - sizeof(pp->msi_msg), - DMA_FROM_DEVICE, - DMA_ATTR_SKIP_CPU_SYNC); + pp->msi_page = alloc_page(GFP_DMA32); + pp->msi_data = dma_map_page(dev, pp->msi_page, 0, + PAGE_SIZE, DMA_FROM_DEVICE); ret = dma_mapping_error(dev, pp->msi_data); if (ret) { dev_err(pci->dev, "Failed to map MSI data\n"); + __free_page(pp->msi_page); + pp->msi_page = NULL; pp->msi_data = 0; goto err_free_msi; } |