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From: Alex Deucher <alexander.deucher@amd.com>
To: <amd-gfx@lists.freedesktop.org>, <bhelgaas@google.com>,
	<linux-pci@vger.kernel.org>
Cc: Alex Deucher <alexander.deucher@amd.com>
Subject: [PATCH] PCI: Apply quirk_amd_harvest_no_ats to all navi10 and 14 asics
Date: Tue, 22 Feb 2022 11:08:01 -0500	[thread overview]
Message-ID: <20220222160801.841643-1-alexander.deucher@amd.com> (raw)

There are enough vbios escapes without the proper workaround
that some users still hit this.  MS never productized ATS on
windows so OEM platforms that were windows only didn't always
validate ATS.

The advantages of ATS are not worth it compared to the potential
instabilities on harvested boards.  Just disable ATS on all navi10
and 14 boards.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1760
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/pci/quirks.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 003950c738d2..ea2de1616510 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5341,11 +5341,6 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0422, quirk_no_ext_tags);
  */
 static void quirk_amd_harvest_no_ats(struct pci_dev *pdev)
 {
-	if ((pdev->device == 0x7312 && pdev->revision != 0x00) ||
-	    (pdev->device == 0x7340 && pdev->revision != 0xc5) ||
-	    (pdev->device == 0x7341 && pdev->revision != 0x00))
-		return;
-
 	if (pdev->device == 0x15d8) {
 		if (pdev->revision == 0xcf &&
 		    pdev->subsystem_vendor == 0xea50 &&
@@ -5367,10 +5362,19 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_amd_harvest_no_ats);
 /* AMD Iceland dGPU */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);
 /* AMD Navi10 dGPU */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7310, quirk_amd_harvest_no_ats);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7318, quirk_amd_harvest_no_ats);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7319, quirk_amd_harvest_no_ats);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x731a, quirk_amd_harvest_no_ats);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x731b, quirk_amd_harvest_no_ats);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x731e, quirk_amd_harvest_no_ats);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x731f, quirk_amd_harvest_no_ats);
 /* AMD Navi14 dGPU */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7341, quirk_amd_harvest_no_ats);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7347, quirk_amd_harvest_no_ats);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x734f, 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 */
-- 
2.35.1


             reply	other threads:[~2022-02-22 16:08 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-22 16:08 Alex Deucher [this message]
2022-02-22 16:22 ` [PATCH] PCI: Apply quirk_amd_harvest_no_ats to all navi10 and 14 asics Christian König
2022-02-23  2:37 ` Chen, Guchun
2022-02-23 20:13 ` Bjorn Helgaas
2022-02-23 20:13   ` Bjorn Helgaas

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