From 4e9e80150dc4d736b833137d558e126f44115905 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 25 Nov 2020 10:57:15 -0500 Subject: [PATCH] PCI: quirks: Add an ATS quirk for a Picasso APU This is very specific to a particular platform, because ATS is required for GPU compute and this is not known to be an issue on any other Picasso platforms. Signed-off-by: Alex Deucher --- drivers/pci/quirks.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index f70692ac79c5..d6e3845d5d04 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5164,6 +5164,17 @@ static void quirk_amd_harvest_no_ats(struct pci_dev *pdev) (pdev->device == 0x7340 && pdev->revision != 0xc5)) return; + if (pdev->device == 0x15d8) { + if (pdev->revision == 0xcf && + pdev->subsystem_vendor == 0xea50 && + (pdev->subsystem_device == 0xce19 )) + goto no_ats; + else + return; + } + +no_ats: pci_info(pdev, "disabling ATS\n"); pdev->ats_cap = 0; } @@ -5176,6 +5187,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats); /* AMD Navi14 dGPU */ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats); +/* AMD Raven platform iGPU */ +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, quirk_amd_harvest_no_ats); #endif /* CONFIG_PCI_ATS */ /* Freescale PCIe doesn't support MSI in RC mode */ -- 2.25.4