git: c54bdf84d5fb - stable/14 - bus: Activate INTRNG interrupts in common code

The branch stable/14 has been updated by cperciva:

URL: https://cgit.FreeBSD.org/src/commit/?id=c54bdf84d5fb0b2c1923179fd30812ee68aaf423

commit c54bdf84d5fb0b2c1923179fd30812ee68aaf423
Author:     Andrew Turner <andrew@FreeBSD.org>
AuthorDate: 2024-10-29 10:19:45 +0000
Commit:     Colin Percival <cperciva@FreeBSD.org>
CommitDate: 2024-11-03 16:01:28 +0000

    bus: Activate INTRNG interrupts in common code
    
    [MFC note: This is not a direct cherry-pick due to API changes in HEAD
    which are not present in stable/14.]
    
    We need to call into INTRNG to activate all interrupts on platforms that
    use it.  Currently, interrupts are only activated in the nexus drivers for
    INTRNG platforms, but this does not handle other bus devices such as
    gpiobus that manage their own IRQ space.
    
    Reported by:    cperciva
    Reviewed by:    cperciva, jhb
    Sponsored by:   Arm Ltd
    Differential Revision:  https://reviews.freebsd.org/D47282
    
    (cherry picked from commit c85855a72db9f9d7b4326b676241e1dffabf0fae)
---
 sys/kern/subr_bus.c | 47 ++++++++++++++++++++++++++++++++++-------------
 1 file changed, 34 insertions(+), 13 deletions(-)

diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c
index f0831b30142b..f55a7210e825 100644
--- a/sys/kern/subr_bus.c
+++ b/sys/kern/subr_bus.c
@@ -53,6 +53,9 @@
 #include <sys/systm.h>
 #include <sys/bus.h>
 #include <sys/cpuset.h>
+#ifdef INTRNG
+#include <sys/intr.h>
+#endif
 
 #include <net/vnet.h>
 
@@ -4382,17 +4385,26 @@ bus_generic_rman_activate_resource(device_t dev, device_t child, int type,
 	if (error != 0)
 		return (error);
 
-	if ((rman_get_flags(r) & RF_UNMAPPED) == 0 &&
-	    (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT)) {
-		error = BUS_MAP_RESOURCE(dev, child, type, r, NULL, &map);
-		if (error != 0) {
-			rman_deactivate_resource(r);
-			return (error);
-		}
+	switch (type) {
+	case SYS_RES_IOPORT:
+	case SYS_RES_MEMORY:
+		if ((rman_get_flags(r) & RF_UNMAPPED) == 0) {
+			error = BUS_MAP_RESOURCE(dev, child, type, r, NULL, &map);
+			if (error != 0)
+				break;
 
-		rman_set_mapping(r, &map);
+			rman_set_mapping(r, &map);
+		}
+		break;
+#ifdef INTRNG
+	case SYS_RES_IRQ:
+		error = intr_activate_irq(child, r);
+		break;
+#endif
 	}
-	return (0);
+	if (error != 0)
+		rman_deactivate_resource(r);
+	return (error);
 }
 
 /**
@@ -4421,10 +4433,19 @@ bus_generic_rman_deactivate_resource(device_t dev, device_t child, int type,
 	if (error != 0)
 		return (error);
 
-	if ((rman_get_flags(r) & RF_UNMAPPED) == 0 &&
-	    (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT)) {
-		rman_get_mapping(r, &map);
-		BUS_UNMAP_RESOURCE(dev, child, type, r, &map);
+	switch (type) {
+	case SYS_RES_IOPORT:
+	case SYS_RES_MEMORY:
+		if ((rman_get_flags(r) & RF_UNMAPPED) == 0) {
+			rman_get_mapping(r, &map);
+			BUS_UNMAP_RESOURCE(dev, child, type, r, &map);
+		}
+		break;
+#ifdef INTRNG
+	case SYS_RES_IRQ:
+		intr_deactivate_irq(child, r);
+		break;
+#endif
 	}
 	return (0);
 }