From d1f0ae412e88d33d772dc85e773b70abc6655138 Mon Sep 17 00:00:00 2001
From: mmel <mmel@FreeBSD.org>
Date: Sat, 5 Nov 2016 10:23:02 +0000
Subject: MFC r304459,r305527:

  r304459:
    INTRNG: Rework handling with resources. Partially revert r301453.
     - Read interrupt properties at bus enumeration time and store
       it into global mapping table.
     - At bus_activate_resource() time, given mapping entry is resolved and
       connected to real interrupt source. A copy of mapping entry is attached
       to given resource.
     - At bus_setup_intr() time, mapping entry stored in resource is used
       for delivery of requested interrupt configuration.
     - For MSI/MSIX interrupts, mapping entry is created within
       pci_alloc_msi()/pci_alloc_msix() call.
     - For legacy PCI interrupts, mapping entry must be created within
       pcib_route_interrupt() by pcib driver itself.
  r305527:
    Fix MIPS INTRNG (both FDT and non-FDT) behaviour broken by r304459
---
 sys/arm64/arm64/nexus.c | 33 +++++++++++++++++++++++++--------
 1 file changed, 25 insertions(+), 8 deletions(-)

(limited to 'sys/arm64')

diff --git a/sys/arm64/arm64/nexus.c b/sys/arm64/arm64/nexus.c
index 2cd36ad..26e1c6c 100644
--- a/sys/arm64/arm64/nexus.c
+++ b/sys/arm64/arm64/nexus.c
@@ -64,6 +64,7 @@ __FBSDID("$FreeBSD$");
 #include <machine/intr.h>
 
 #ifdef FDT
+#include <dev/ofw/ofw_bus_subr.h>
 #include <dev/ofw/openfirm.h>
 #include "ofw_bus_if.h"
 #endif
@@ -344,6 +345,8 @@ nexus_activate_resource(device_t bus, device_t child, int type, int rid,
 		rman_set_bustag(r, &memmap_bus);
 		rman_set_virtual(r, (void *)vaddr);
 		rman_set_bushandle(r, vaddr);
+	} else if (type == SYS_RES_IRQ) {
+		intr_activate_irq(child, r);
 	}
 	return (0);
 }
@@ -377,13 +380,17 @@ nexus_deactivate_resource(device_t bus, device_t child, int type, int rid,
 	bus_size_t psize;
 	bus_space_handle_t vaddr;
 
-	psize = (bus_size_t)rman_get_size(r);
-	vaddr = rman_get_bushandle(r);
+	if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) {
+		psize = (bus_size_t)rman_get_size(r);
+		vaddr = rman_get_bushandle(r);
 
-	if (vaddr != 0) {
-		bus_space_unmap(&memmap_bus, vaddr, psize);
-		rman_set_virtual(r, NULL);
-		rman_set_bushandle(r, 0);
+		if (vaddr != 0) {
+			bus_space_unmap(&memmap_bus, vaddr, psize);
+			rman_set_virtual(r, NULL);
+			rman_set_bushandle(r, 0);
+		}
+	} else if (type == SYS_RES_IRQ) {
+		intr_deactivate_irq(child, r);
 	}
 
 	return (rman_deactivate_resource(r));
@@ -430,8 +437,18 @@ static int
 nexus_ofw_map_intr(device_t dev, device_t child, phandle_t iparent, int icells,
     pcell_t *intr)
 {
-
-	return (INTR_IRQ_INVALID);
+	u_int irq;
+	struct intr_map_data_fdt *fdt_data;
+	size_t len;
+
+	len = sizeof(*fdt_data) + icells * sizeof(pcell_t);
+	fdt_data = (struct intr_map_data_fdt *)intr_alloc_map_data(
+	    INTR_MAP_DATA_FDT, len, M_WAITOK | M_ZERO);
+	fdt_data->iparent = iparent;
+	fdt_data->ncells = icells;
+	memcpy(fdt_data->cells, intr, icells * sizeof(pcell_t));
+	irq = intr_map_irq(NULL, iparent, (struct intr_map_data *)fdt_data);
+	return (irq);
 }
 #endif
 
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