When the Movable BARs feature is supported, the PCI subsystem is able to
distribute existing BARs and allocate the new ones itself, without need to
reserve gaps by BIOS.
CC: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sergei Miroshnichenko <s.miroshnichenko@xxxxxxxxx>
---
drivers/pnp/system.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/pnp/system.c b/drivers/pnp/system.c
index 6950503741eb..16cd260a609d 100644
--- a/drivers/pnp/system.c
+++ b/drivers/pnp/system.c
@@ -12,6 +12,7 @@
#include <linux/device.h>
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
@@ -58,6 +59,11 @@ static void reserve_resources_of_dev(struct pnp_dev *dev)
struct resource *res;
int i;
+#ifdef CONFIG_PCI
+ if (pci_can_move_bars)
+ return;
+#endif
+
for (i = 0; (res = pnp_get_resource(dev, IORESOURCE_IO, i)); i++) {
if (res->flags & IORESOURCE_DISABLED)
continue;
--
2.24.1
