[PATCH] PCI: tegra: limit MSI target address to 32-bit
DORMANTno replies
From: Vidya Sagar <hidden>
Date: 2017-11-06 18:03:07
Also in:
linux-pci
Subsystem:
pci subsystem, the rest · Maintainers:
Bjorn Helgaas, Linus Torvalds
limits MSI target address to only 32-bit region to enable some of the PCIe end points where only 32-bit MSIs are supported work properly. One example being Marvel SATA controller Signed-off-by: Vidya Sagar <redacted> --- drivers/pci/host/pci-tegra.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 1987fec1f126..03d3dcdd06c2 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c@@ -1531,7 +1531,7 @@ static int tegra_pcie_enable_msi(struct tegra_pcie *pcie) } /* setup AFI/FPCI range */ - msi->pages = __get_free_pages(GFP_KERNEL, 0); + msi->pages = __get_free_pages(GFP_DMA, 0); msi->phys = virt_to_phys((void *)msi->pages); afi_writel(pcie, msi->phys >> soc->msi_base_shift, AFI_MSI_FPCI_BAR_ST);
--
2.7.4