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Date:      Sat, 4 Aug 2001 03:41:12 -0400
From:      Jonathan Chen <jon@FreeBSD.org>
To:        "Viren R.Shah" <viren@cigital.com>
Cc:        freebsd-bugs@FreeBSD.org
Subject:   Re: misc/28203: NEWCARD won't recognize my cardbus controllers or my Xircom Realport 10/100+56k card
Message-ID:  <20010804034112.A27769@enterprise.spock.org>
In-Reply-To: <15210.56924.536714.812107@aop.cigital.com>; from viren@cigital.com on Fri, Aug 03, 2001 at 01:24:44PM -0400
References:  <15210.56924.536714.812107@aop.cigital.com>
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Oops, forgot to include the pacth, here it is.

Index: sys/dev/pci/pci_pci.c
===================================================================
RCS file: /export/ncvs/src/sys/dev/pci/pci_pci.c,v
retrieving revision 1.3
diff -u -r1.3 pci_pci.c
--- sys/dev/pci/pci_pci.c	2000/12/13 01:25:11	1.3
+++ sys/dev/pci/pci_pci.c	2001/08/04 07:17:27
@@ -38,6 +38,8 @@
 #include <sys/systm.h>
 #include <sys/kernel.h>
 #include <sys/bus.h>
+#include <machine/bus.h>
+#include <sys/rman.h>
 
 #include <machine/resource.h>
 
@@ -265,15 +267,6 @@
 {
     struct pcib_softc	*sc = device_get_softc(dev);
 
-    /*
-     * If this is a "default" allocation against this rid, we can't work
-     * out where it's coming from (we should actually never see these) so we
-     * just have to punt.
-     */
-    if ((start == 0) && (end == ~0)) {
-	device_printf(dev, "can't decode default resource id %d for %s%d, bypassing\n",
-		      *rid, device_get_name(child), device_get_unit(child));
-    } else {
 	/*
 	 * Fail the allocation for this range if it's not supported.
 	 * 
@@ -286,7 +279,8 @@
 			      " (decoding 0x%x-0x%x)\n",
 			      device_get_name(child), device_get_unit(child), start, end,
 			      sc->iobase, sc->iolimit);
-		return(NULL);
+	        if (start < sc->iobase) start = sc->iobase;
+	        if (end < sc->iolimit) end = sc->iolimit;
 	    }
 	    if (bootverbose)
 		device_printf(sc->dev, "device %s%d requested decoded I/O range 0x%lx-0x%lx\n",
@@ -306,7 +300,13 @@
 			      " (decoding 0x%x-0x%x, 0x%x-0x%x)\n",
 			      device_get_name(child), device_get_unit(child), start, end,
 			      sc->membase, sc->memlimit, sc->pmembase, sc->pmemlimit);
-		return(NULL);
+	        if (flags & RF_PREFETCHABLE) {
+		    if (start < sc->pmembase) start = sc->pmembase;
+		    if (end < sc->pmemlimit) end = sc->pmemlimit;
+		} else {
+		    if (start < sc->membase) start = sc->membase;
+		    if (end < sc->memlimit) end = sc->memlimit;
+		}
 	    }
 	    if (bootverbose)
 		device_printf(sc->dev, "device %s%d requested decoded memory range 0x%lx-0x%lx\n",
@@ -316,7 +316,6 @@
 	default:
 	    break;
 	}
-    }
 
     /*
      * Bridge is OK decoding this resource, so pass it up.

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