The branch main has been updated by jhb:
URL:
https://cgit.FreeBSD.org/src/commit/?id=bf6c4ee6f0c8d0b9025207cde648427b749d8420
commit bf6c4ee6f0c8d0b9025207cde648427b749d8420
Author: John Baldwin <j...@freebsd.org>
AuthorDate: 2025-01-23 23:27:48 +0000
Commit: John Baldwin <j...@freebsd.org>
CommitDate: 2025-01-23 23:27:48 +0000
arm64 nexus: Remove support for I/O port resources
arm64 doesn't natively support I/O port resources. PCI I/O port BARs
are remapped to memory resources by PCI bridge drivers before the
request is passed up to the nexus layer.
Reviewed by: imp, markj
Differential Revision: https://reviews.freebsd.org/D48581
---
sys/arm64/arm64/nexus.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/sys/arm64/arm64/nexus.c b/sys/arm64/arm64/nexus.c
index 8d7489b844ae..2de996447edd 100644
--- a/sys/arm64/arm64/nexus.c
+++ b/sys/arm64/arm64/nexus.c
@@ -221,7 +221,6 @@ nexus_get_rman(device_t bus, int type, u_int flags)
case SYS_RES_IRQ:
return (&irq_rman);
case SYS_RES_MEMORY:
- case SYS_RES_IOPORT:
return (&mem_rman);
default:
return (NULL);
@@ -334,7 +333,6 @@ nexus_activate_resource_flags(device_t bus, device_t child,
struct resource *r,
* If this is a memory resource, map it into the kernel.
*/
switch (rman_get_type(r)) {
- case SYS_RES_IOPORT:
case SYS_RES_MEMORY:
if ((err = rman_activate_resource(r)) != 0)
return (err);
@@ -390,9 +388,8 @@ nexus_map_resource(device_t bus, device_t child, struct
resource *r,
if ((rman_get_flags(r) & RF_ACTIVE) == 0)
return (ENXIO);
- /* Mappings are only supported on I/O and memory resources. */
+ /* Mappings are only supported on memory resources. */
switch (rman_get_type(r)) {
- case SYS_RES_IOPORT:
case SYS_RES_MEMORY:
break;
default:
@@ -422,7 +419,6 @@ nexus_unmap_resource(device_t bus, device_t child, struct
resource *r,
switch (rman_get_type(r)) {
case SYS_RES_MEMORY:
- case SYS_RES_IOPORT:
pmap_unmapdev(map->r_vaddr, map->r_size);
return (0);
default:
@@ -480,7 +476,6 @@ nexus_fdt_activate_resource(device_t bus, device_t child,
struct resource *r)
flags = 0;
switch (rman_get_type(r)) {
case SYS_RES_MEMORY:
- case SYS_RES_IOPORT:
/*
* If the fdt parent has the nonposted-mmio property we
* need to use non-posted IO to access the device. When
