Date: Tue, 29 Apr 2025 18:30:54 GMT From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 14cb4636358f - stable/14 - pcib: Clear any pending slot status events during attach Message-ID: <202504291830.53TIUsVX023085@gitrepo.freebsd.org>
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The branch stable/14 has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=14cb4636358f1d54c2e0d843164c0dc9afcf012b commit 14cb4636358f1d54c2e0d843164c0dc9afcf012b Author: John Baldwin <jhb@FreeBSD.org> AuthorDate: 2025-04-22 02:08:17 +0000 Commit: John Baldwin <jhb@FreeBSD.org> CommitDate: 2025-04-29 14:46:40 +0000 pcib: Clear any pending slot status events during attach Any events left over from boot firmware, etc. are not meaningful so clear pending events during attach. If they are still pending they should remain asserted when the slot status register is re-read. Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D49950 (cherry picked from commit ff45e4759a38f44a0199b2948b7b1e987e7c71da) --- sys/dev/pci/pci_pci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sys/dev/pci/pci_pci.c b/sys/dev/pci/pci_pci.c index 74b830be8a0a..eb48dab1f188 100644 --- a/sys/dev/pci/pci_pci.c +++ b/sys/dev/pci/pci_pci.c @@ -1449,6 +1449,7 @@ pcib_setup_hotplug(struct pcib_softc *sc) /* Clear any events previously pending. */ pcie_write_config(dev, PCIER_SLOT_STA, sc->pcie_slot_sta, 2); + sc->pcie_slot_sta = pcie_read_config(dev, PCIER_SLOT_STA, 2); /* Enable HotPlug events. */ mask = PCIEM_SLOT_CTL_DLLSCE | PCIEM_SLOT_CTL_HPIE |
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