Date: Tue, 22 Apr 2025 02:58:24 GMT From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: ff45e4759a38 - main - pcib: Clear any pending slot status events during attach Message-ID: <202504220258.53M2wOGv071175@gitrepo.freebsd.org>
next in thread | raw e-mail | index | archive | help
The branch main has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=ff45e4759a38f44a0199b2948b7b1e987e7c71da commit ff45e4759a38f44a0199b2948b7b1e987e7c71da Author: John Baldwin <jhb@FreeBSD.org> AuthorDate: 2025-04-22 02:08:17 +0000 Commit: John Baldwin <jhb@FreeBSD.org> CommitDate: 2025-04-22 02:08:17 +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 --- 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 cdd717266026..40ed5db4480e 100644 --- a/sys/dev/pci/pci_pci.c +++ b/sys/dev/pci/pci_pci.c @@ -1298,6 +1298,7 @@ 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 |
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?202504220258.53M2wOGv071175>