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The patches were generated from the RPi repo with the following command: git format-patch v6.6.34..rpi-6.1.y Some patches needed rebasing and, as usual, the applied and reverted, wireless drivers, Github workflows, READMEs and defconfigs patches were removed. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
From bab2f1e4e90675af7ea6b48b5c28eb94e22cecd7 Mon Sep 17 00:00:00 2001
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From: Jonathan Bell <jonathan@raspberrypi.com>
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Date: Thu, 13 Jul 2023 15:06:54 +0100
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Subject: [PATCH 0483/1085] usb: xhci: borrow upstream TRB_FETCH quirk on VL805
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hosts
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This reimplements 5a57342 usb: xhci: add VLI_TRB_CACHE_BUG quirk
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The downstream implementation required a fair bit of driver surgery to
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allow for truncated ring segments, which needed to shrink by a small
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amount to avoid the cache prefetcher from reading off the end of one
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segment and into another.
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An upstream implementation for a similar bug on a different controller
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just doubles the size of the memory allocated for ring segments, which
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is a bit more wasteful (+4K per allocation) but means less code churn.
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Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
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---
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drivers/usb/host/xhci-pci.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/usb/host/xhci-pci.c
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+++ b/drivers/usb/host/xhci-pci.c
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@@ -483,6 +483,7 @@ static void xhci_pci_quirks(struct devic
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xhci->quirks |= XHCI_LPM_SUPPORT;
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xhci->quirks |= XHCI_EP_CTX_BROKEN_DCS;
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xhci->quirks |= XHCI_AVOID_DQ_ON_LINK;
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+ xhci->quirks |= XHCI_ZHAOXIN_TRB_FETCH;
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}
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if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
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