git: 729576a3d540 - stable/14 - pci: Set the domain in the pci_generic driver

The branch stable/14 has been updated by andrew:

URL: https://cgit.FreeBSD.org/src/commit/?id=729576a3d540d914136c7faaa134ea25ae9c6636

commit 729576a3d540d914136c7faaa134ea25ae9c6636
Author:     Andrew Turner <andrew@FreeBSD.org>
AuthorDate: 2023-10-13 10:08:21 +0000
Commit:     Andrew Turner <andrew@FreeBSD.org>
CommitDate: 2024-02-19 13:10:27 +0000

    pci: Set the domain in the pci_generic driver
    
    Tell bus_dma(9) which NUMA domain the PCI driver is closest to so it
    can allocate memory from there when possible.
    
    Reviewed by:    markj, jhb
    Sponsored by:   Arm Ltd
    Differential Revision:  https://reviews.freebsd.org/D42186
    
    (cherry picked from commit 7098f3c7569c21ecdfc990772e96a416f1a94eee)
---
 sys/dev/pci/pci_host_generic.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sys/dev/pci/pci_host_generic.c b/sys/dev/pci/pci_host_generic.c
index cef83069c371..90361a7258ed 100644
--- a/sys/dev/pci/pci_host_generic.c
+++ b/sys/dev/pci/pci_host_generic.c
@@ -83,7 +83,7 @@ pci_host_generic_core_attach(device_t dev)
 	uint64_t phys_base;
 	uint64_t pci_base;
 	uint64_t size;
-	int error;
+	int domain, error;
 	int rid, tuple;
 
 	sc = device_get_softc(dev);
@@ -104,6 +104,13 @@ pci_host_generic_core_attach(device_t dev)
 	if (error != 0)
 		return (error);
 
+	/*
+	 * Attempt to set the domain. If it's missing, or we are unable to
+	 * set it then memory allocations may be placed in the wrong domain.
+	 */
+	if (bus_get_domain(dev, &domain) == 0)
+		(void)bus_dma_tag_set_domain(sc->dmat, domain);
+
 	if ((sc->quirks & PCIE_CUSTOM_CONFIG_SPACE_QUIRK) == 0) {
 		rid = 0;
 		sc->res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,