Issue call to IOMMU OFW API to collect an IOMMU-sprinkled DMA tag.

ok kettenis@

diff --git a/sys/arch/arm64/dev/pciecam.c b/sys/arch/arm64/dev/pciecam.c
index 4acd266..c5f0354 100644 (file)
--- a/sys/arch/arm64/dev/pciecam.c
+++ b/sys/arch/arm64/dev/pciecam.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: pciecam.c,v 1.12 2021/02/25 23:07:48 patrick Exp $ */
+/* $OpenBSD: pciecam.c,v 1.13 2021/02/28 21:06:58 patrick Exp $ */
 /*
  * Copyright (c) 2013,2017 Patrick Wildt <patrick@blueri.se>
  *
@@ -35,6 +35,7 @@
 #include <dev/ofw/openfirm.h>
 #include <dev/ofw/ofw_clock.h>
 #include <dev/ofw/ofw_pinctrl.h>
+#include <dev/ofw/ofw_misc.h>
 
 /* Assembling ECAM Configuration Address */
 #define PCIE_BUS_SHIFT                 20
@@ -324,6 +325,12 @@ pciecam_conf_write(void *v, pcitag_t tag, int reg, pcireg_t data)
 int
 pciecam_probe_device_hook(void *v, struct pci_attach_args *pa)
 {
+       struct pciecam_softc *sc = (struct pciecam_softc *)v;
+       uint16_t rid;
+
+       rid = pci_requester_id(pa->pa_pc, pa->pa_tag);
+       pa->pa_dmat = iommu_device_map_pci(sc->sc_node, rid, pa->pa_dmat);
+
        return 0;
 }
 

diff --git a/sys/dev/fdt/dwpcie.c b/sys/dev/fdt/dwpcie.c
index 70637fc..9da1473 100644 (file)
--- a/sys/dev/fdt/dwpcie.c
+++ b/sys/dev/fdt/dwpcie.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: dwpcie.c,v 1.25 2021/02/25 23:07:49 patrick Exp $     */
+/*     $OpenBSD: dwpcie.c,v 1.26 2021/02/28 21:06:58 patrick Exp $     */
 /*
  * Copyright (c) 2018 Mark Kettenis <kettenis@openbsd.org>
  *
@@ -1135,6 +1135,12 @@ dwpcie_conf_write(void *v, pcitag_t tag, int reg, pcireg_t data)
 int
 dwpcie_probe_device_hook(void *v, struct pci_attach_args *pa)
 {
+       struct dwpcie_softc *sc = v;
+       uint16_t rid;
+
+       rid = pci_requester_id(pa->pa_pc, pa->pa_tag);
+       pa->pa_dmat = iommu_device_map_pci(sc->sc_node, rid, pa->pa_dmat);
+
        return 0;
 }