The branch main has been updated by jhb:
URL:
https://cgit.FreeBSD.org/src/commit/?id=2f51074c90ad28a9cc7715f5f9c4e9323609ab1b
commit 2f51074c90ad28a9cc7715f5f9c4e9323609ab1b
Author: John Baldwin <j...@freebsd.org>
AuthorDate: 2025-01-23 23:27:57 +0000
Commit: John Baldwin <j...@freebsd.org>
CommitDate: 2025-01-23 23:27:57 +0000
riscv nexus: Remove support for I/O port resources
RISC-V 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: jrtc27, imp
Differential Revision: https://reviews.freebsd.org/D48582
---
sys/riscv/riscv/nexus.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/sys/riscv/riscv/nexus.c b/sys/riscv/riscv/nexus.c
index 6eb194f86390..836e1648edeb 100644
--- a/sys/riscv/riscv/nexus.c
+++ b/sys/riscv/riscv/nexus.c
@@ -214,7 +214,6 @@ 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);
@@ -308,7 +307,6 @@ nexus_activate_resource(device_t bus, device_t child,
struct resource *r)
int error;
switch (rman_get_type(r)) {
- case SYS_RES_IOPORT:
case SYS_RES_MEMORY:
error = bus_generic_rman_activate_resource(bus, child, r);
break;
@@ -343,7 +341,6 @@ nexus_deactivate_resource(device_t bus, device_t child,
struct resource *r)
int error;
switch (rman_get_type(r)) {
- case SYS_RES_IOPORT:
case SYS_RES_MEMORY:
error = bus_generic_rman_deactivate_resource(bus, child, r);
break;
@@ -372,9 +369,8 @@ 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:
@@ -403,7 +399,6 @@ 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:
