PNP: reserve system board iomem resources as well as ioport resources

Most x86 boxes have no iomem system board resources, but some ia64
boxes do.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/pnp/system.c b/drivers/pnp/system.c
index d42015c..fd17c71 100644 (file)
--- a/drivers/pnp/system.c
+++ b/drivers/pnp/system.c
@@ -3,7 +3,8 @@
  *
  * Some code is based on pnpbios_core.c
  * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
- *
+ * (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
+ *     Bjorn Helgaas <bjorn.helgaas@hp.com>
  */
 
 #include <linux/pnp.h>
@@ -21,7 +22,7 @@ static const struct pnp_device_id pnp_dev_table[] = {
        {       "",                     0       }
 };
 
-static void reserve_ioport_range(char *pnpid, int start, int end)
+static void reserve_range(char *pnpid, int start, int end, int port)
 {
        struct resource *res;
        char *regionid;
@@ -30,7 +31,10 @@ static void reserve_ioport_range(char *pnpid, int start, int end)
        if ( regionid == NULL )
                return;
        snprintf(regionid, 16, "pnp %s", pnpid);
-       res = request_region(start,end-start+1,regionid);
+       if (port)
+               res = request_region(start,end-start+1,regionid);
+       else
+               res = request_mem_region(start,end-start+1,regionid);
        if ( res == NULL )
                kfree( regionid );
        else
@@ -41,8 +45,8 @@ static void reserve_ioport_range(char *pnpid, int start, int end)
         * have double reservations.
         */
        printk(KERN_INFO
-               "pnp: %s: ioport range 0x%x-0x%x %s reserved\n",
-               pnpid, start, end,
+               "pnp: %s: %s range 0x%x-0x%x %s reserved\n",
+               pnpid, port ? "ioport" : "iomem", start, end,
                NULL != res ? "has been" : "could not be"
        );
 
@@ -75,13 +79,21 @@ static void reserve_resources_of_dev( struct pnp_dev *dev )
                        /* invalid endpoint */
                        /* Do nothing */
                        continue;
-               reserve_ioport_range(
+               reserve_range(
                        dev->dev.bus_id,
                        pnp_port_start(dev, i),
-                       pnp_port_end(dev, i)
+                       pnp_port_end(dev, i), 1
                );
        }
 
+       for (i = 0; i < PNP_MAX_MEM; i++) {
+               if (!pnp_mem_valid(dev, i))
+                       continue;
+
+               reserve_range(dev->dev.bus_id, pnp_mem_start(dev, i),
+                       pnp_mem_end(dev, i), 0);
+       }
+
        return;
 }