Module Name: src
Committed By: jmcneill
Date: Tue Aug 10 15:31:38 UTC 2021
Modified Files:
src/sys/arch/arm/acpi: acpipchb.c
Log Message:
Disable MSI if the linux,pcie-nomsi flag is present
To generate a diff of this commit:
cvs rdiff -u -r1.27 -r1.28 src/sys/arch/arm/acpi/acpipchb.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/acpi/acpipchb.c
diff -u src/sys/arch/arm/acpi/acpipchb.c:1.27 src/sys/arch/arm/acpi/acpipchb.c:1.28
--- src/sys/arch/arm/acpi/acpipchb.c:1.27 Sat Aug 7 21:27:53 2021
+++ src/sys/arch/arm/acpi/acpipchb.c Tue Aug 10 15:31:38 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: acpipchb.c,v 1.27 2021/08/07 21:27:53 jmcneill Exp $ */
+/* $NetBSD: acpipchb.c,v 1.28 2021/08/10 15:31:38 jmcneill Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpipchb.c,v 1.27 2021/08/07 21:27:53 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpipchb.c,v 1.28 2021/08/10 15:31:38 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -123,7 +123,7 @@ acpipchb_attach(device_t parent, device_
struct acpipchb_softc * const sc = device_private(self);
struct acpi_attach_args *aa = aux;
struct pcibus_attach_args pba;
- ACPI_INTEGER seg;
+ ACPI_INTEGER seg, nomsi;
ACPI_STATUS rv;
uint16_t bus_start;
@@ -148,6 +148,11 @@ acpipchb_attach(device_t parent, device_
seg = 0;
}
+ if (ACPI_FAILURE(acpi_dsd_integer(sc->sc_handle, "linux,pcie-nomsi",
+ &nomsi))) {
+ nomsi = 0;
+ }
+
aprint_naive("\n");
aprint_normal(": PCI Express Host Bridge\n");
@@ -156,6 +161,9 @@ acpipchb_attach(device_t parent, device_
memset(&pba, 0, sizeof(pba));
pba.pba_flags = aa->aa_pciflags &
~(PCI_FLAGS_MEM_OKAY | PCI_FLAGS_IO_OKAY);
+ if (nomsi) {
+ pba.pba_flags &= ~(PCI_FLAGS_MSI_OKAY | PCI_FLAGS_MSIX_OKAY);
+ }
pba.pba_memt = 0;
pba.pba_iot = 0;
pba.pba_dmat = aa->aa_dmat;
