From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vidya Sagar Subject: [PATCH] PCI: tegra: limit MSI target address to 32-bit Date: Mon, 6 Nov 2017 23:33:07 +0530 Message-ID: <1509991387-15951-1-git-send-email-vidyas@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org Cc: linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kthota-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, mmaddireddy-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, vidyas-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org List-Id: linux-tegra@vger.kernel.org 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 --- 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