PERFORCE change 153201 for review

Marko Zec zec at FreeBSD.org
Wed Nov 19 00:48:14 PST 2008


http://perforce.freebsd.org/chv.cgi?CH=153201

Change 153201 by zec at zec_tca51 on 2008/11/19 08:47:37

	IFC @ 153200
	
	(just in case as suggested by Julian, though no net* files
	seem to have changed since the last update)

Affected files ...

.. //depot/projects/vimage-commit2/src/sys/arm/at91/at91_mci.c#7 integrate
.. //depot/projects/vimage-commit2/src/sys/arm/at91/uart_dev_at91usart.c#4 integrate
.. //depot/projects/vimage-commit2/src/sys/dev/acpica/acpi.c#6 integrate
.. //depot/projects/vimage-commit2/src/sys/dev/bce/if_bce.c#4 integrate
.. //depot/projects/vimage-commit2/src/sys/dev/sio/sio_pci.c#2 integrate
.. //depot/projects/vimage-commit2/src/sys/dev/sio/sio_puc.c#2 integrate
.. //depot/projects/vimage-commit2/src/sys/fs/cd9660/cd9660_bmap.c#2 integrate
.. //depot/projects/vimage-commit2/src/sys/fs/cd9660/cd9660_node.c#4 integrate
.. //depot/projects/vimage-commit2/src/sys/fs/cd9660/cd9660_node.h#2 integrate
.. //depot/projects/vimage-commit2/src/sys/fs/cd9660/cd9660_vfsops.c#4 integrate
.. //depot/projects/vimage-commit2/src/sys/fs/cd9660/cd9660_vnops.c#5 integrate
.. //depot/projects/vimage-commit2/src/sys/isa/isa_common.c#4 integrate
.. //depot/projects/vimage-commit2/src/sys/isa/isa_common.h#3 integrate
.. //depot/projects/vimage-commit2/src/sys/isa/isahint.c#2 integrate
.. //depot/projects/vimage-commit2/src/sys/isa/isavar.h#4 integrate
.. //depot/projects/vimage-commit2/src/sys/kern/bus_if.m#2 integrate
.. //depot/projects/vimage-commit2/src/sys/kern/subr_bus.c#5 integrate

Differences ...

==== //depot/projects/vimage-commit2/src/sys/arm/at91/at91_mci.c#7 (text+ko) ====

@@ -24,7 +24,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/arm/at91/at91_mci.c,v 1.9 2008/10/29 20:01:26 mav Exp $");
+__FBSDID("$FreeBSD: src/sys/arm/at91/at91_mci.c,v 1.10 2008/11/18 12:42:59 stas Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -176,7 +176,7 @@
 	 * Allocate DMA tags and maps
 	 */
 	err = bus_dma_tag_create(bus_get_dma_tag(dev), 1, 0,
-	    BUS_SPACE_MAXADDR_32BIT, US_SPACE_MAXADDR, NULL, NULL, MAXPHYS, 1,
+	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MAXPHYS, 1,
 	    MAXPHYS, BUS_DMA_ALLOCNOW, NULL, NULL, &sc->dmatag);
 	if (err != 0)
 		goto out;

==== //depot/projects/vimage-commit2/src/sys/arm/at91/uart_dev_at91usart.c#4 (text) ====

@@ -26,7 +26,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/arm/at91/uart_dev_at91usart.c,v 1.16 2008/10/07 17:23:16 imp Exp $");
+__FBSDID("$FreeBSD: src/sys/arm/at91/uart_dev_at91usart.c,v 1.17 2008/11/18 12:42:59 stas Exp $");
 
 #include "opt_comconsole.h"
 
@@ -350,7 +350,7 @@
 	/*
 	 * Allocate DMA tags and maps
 	 */
-	err = bus_dma_tag_create(bus_get_dma_tag(dev), 1, 0,
+	err = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
 	    USART_BUFFER_SIZE, 1, USART_BUFFER_SIZE, BUS_DMA_ALLOCNOW, NULL,
 	    NULL, &atsc->dmatag);

==== //depot/projects/vimage-commit2/src/sys/dev/acpica/acpi.c#6 (text+ko) ====

@@ -28,7 +28,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/dev/acpica/acpi.c,v 1.253 2008/11/02 17:35:15 imp Exp $");
+__FBSDID("$FreeBSD: src/sys/dev/acpica/acpi.c,v 1.254 2008/11/18 21:01:54 jhb Exp $");
 
 #include "opt_acpi.h"
 #include <sys/param.h>
@@ -158,6 +158,8 @@
 #if defined(__i386__) || defined(__amd64__)
 static void	acpi_enable_pcie(void);
 #endif
+static void	acpi_hint_device_unit(device_t acdev, device_t child,
+		    const char *name, int *unitp);
 
 static device_method_t acpi_methods[] = {
     /* Device interface */
@@ -187,6 +189,7 @@
     DEVMETHOD(bus_deactivate_resource,	bus_generic_deactivate_resource),
     DEVMETHOD(bus_setup_intr,		bus_generic_setup_intr),
     DEVMETHOD(bus_teardown_intr,	bus_generic_teardown_intr),
+    DEVMETHOD(bus_hint_device_unit,	acpi_hint_device_unit),
 
     /* ACPI bus */
     DEVMETHOD(acpi_id_probe,		acpi_device_id_probe),
@@ -949,6 +952,89 @@
     return (&ad->ad_rl);
 }
 
+static int
+acpi_match_resource_hint(device_t dev, int type, long value)
+{
+    struct acpi_device *ad = device_get_ivars(dev);
+    struct resource_list *rl = &ad->ad_rl;
+    struct resource_list_entry *rle;
+
+    STAILQ_FOREACH(rle, rl, link) {
+	if (rle->type != type)
+	    continue;
+	if (rle->start <= value && rle->end >= value)
+	    return (1);
+    }
+    return (0);
+}
+
+/*
+ * Wire device unit numbers based on resource matches in hints.
+ */
+static void
+acpi_hint_device_unit(device_t acdev, device_t child, const char *name,
+    int *unitp)
+{
+    const char *s;
+    long value;
+    int line, matches, unit;
+
+    /*
+     * Iterate over all the hints for the devices with the specified
+     * name to see if one's resources are a subset of this device.
+     */
+    line = 0;
+    for (;;) {
+	if (resource_find_dev(&line, name, &unit, "at", NULL) != 0)
+	    break;
+
+	/* Must have an "at" for acpi or isa. */
+	resource_string_value(name, unit, "at", &s);
+	if (!(strcmp(s, "acpi0") == 0 || strcmp(s, "acpi") == 0 ||
+	    strcmp(s, "isa0") == 0 || strcmp(s, "isa") == 0))
+	    continue;
+
+	/*
+	 * Check for matching resources.  We must have at least one,
+	 * and all resources specified have to match.
+	 *
+	 * XXX: We may want to revisit this to be more lenient and wire
+	 * as long as it gets one match.
+	 */
+	matches = 0;
+	if (resource_long_value(name, unit, "port", &value) == 0) {
+	    if (acpi_match_resource_hint(child, SYS_RES_IOPORT, value))
+		matches++;
+	    else
+		continue;
+	}
+	if (resource_long_value(name, unit, "maddr", &value) == 0) {
+	    if (acpi_match_resource_hint(child, SYS_RES_MEMORY, value))
+		matches++;
+	    else
+		continue;
+	}
+	if (resource_long_value(name, unit, "irq", &value) == 0) {
+	    if (acpi_match_resource_hint(child, SYS_RES_IRQ, value))
+		matches++;
+	    else
+		continue;
+	}
+	if (resource_long_value(name, unit, "drq", &value) == 0) {
+	    if (acpi_match_resource_hint(child, SYS_RES_DRQ, value))
+		matches++;
+	    else
+		continue;
+	}
+
+	if (matches > 0) {
+	    /* We have a winner! */
+	    *unitp = unit;
+	    break;
+	}
+    }
+}
+
 /*
  * Pre-allocate/manage all memory and IO resources.  Since rman can't handle
  * duplicates, we merge any in the sysresource attach routine.

==== //depot/projects/vimage-commit2/src/sys/dev/bce/if_bce.c#4 (text) ====

@@ -29,7 +29,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/dev/bce/if_bce.c,v 1.43 2008/08/27 18:47:24 davidch Exp $");
+__FBSDID("$FreeBSD: src/sys/dev/bce/if_bce.c,v 1.44 2008/11/19 03:24:35 delphij Exp $");
 
 /*
  * The following controllers are supported by this driver:
@@ -2555,7 +2555,7 @@
 	} else if (BCE_CHIP_BOND_ID(sc) & BCE_CHIP_BOND_ID_SERDES_BIT)
 		sc->bce_phy_flags |= BCE_PHY_SERDES_FLAG;
 
-	if (sc->bce_phy_flags && BCE_PHY_SERDES_FLAG) {
+	if (sc->bce_phy_flags & BCE_PHY_SERDES_FLAG) {
 		sc->bce_flags |= BCE_NO_WOL_FLAG;
 		if (BCE_CHIP_NUM(sc) != BCE_CHIP_NUM_5706) {
 			sc->bce_phy_addr = 2;

==== //depot/projects/vimage-commit2/src/sys/dev/sio/sio_pci.c#2 (text+ko) ====

@@ -23,7 +23,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/dev/sio/sio_pci.c,v 1.23 2007/03/29 04:26:52 maxim Exp $");
+__FBSDID("$FreeBSD: src/sys/dev/sio/sio_pci.c,v 1.24 2008/11/18 21:01:54 jhb Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -43,7 +43,6 @@
 #include <dev/pci/pcivar.h>
 
 static	int	sio_pci_attach(device_t dev);
-static	void	sio_pci_kludge_unit(device_t dev);
 static	int	sio_pci_probe(device_t dev);
 
 static device_method_t sio_pci_methods[] = {
@@ -101,39 +100,9 @@
 		id++;
 	if (id->desc == NULL)
 		return (ENXIO);
-	sio_pci_kludge_unit(dev);
 	return (sioattach(dev, id->rid, 0UL));
 }
 
-/*
- * Don't cut and paste this to other drivers.  It is a horrible kludge
- * which will fail to work and also be unnecessary in future versions.
- */
-static void
-sio_pci_kludge_unit(dev)
-	device_t dev;
-{
-	devclass_t	dc;
-	int		err;
-	int		start;
-	int		unit;
-
-	unit = 0;
-	start = 0;
-	while (resource_int_value("sio", unit, "port", &start) == 0 && 
-	    start > 0)
-		unit++;
-	if (device_get_unit(dev) < unit) {
-		dc = device_get_devclass(dev);
-		while (devclass_get_device(dc, unit))
-			unit++;
-		device_printf(dev, "moving to sio%d\n", unit);
-		err = device_set_unit(dev, unit);	/* EVIL DO NOT COPY */
-		if (err)
-			device_printf(dev, "error moving device %d\n", err);
-	}
-}
-
 static int
 sio_pci_probe(dev)
 	device_t	dev;

==== //depot/projects/vimage-commit2/src/sys/dev/sio/sio_puc.c#2 (text+ko) ====

@@ -24,7 +24,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/dev/sio/sio_puc.c,v 1.11 2007/11/30 21:36:12 peter Exp $");
+__FBSDID("$FreeBSD: src/sys/dev/sio/sio_puc.c,v 1.12 2008/11/18 21:01:54 jhb Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -62,34 +62,6 @@
 	0,
 };
 
-/*
- * Don't cut and paste this to other drivers.  It is a horrible kludge
- * which will fail to work and also be unnecessary in future versions.
- */
-static void
-sio_puc_kludge_unit(device_t dev)
-{
-	devclass_t	dc;
-	int		err;
-	int		start;
-	int		unit;
-
-	unit = 0;
-	start = 0;
-	while (resource_int_value("sio", unit, "port", &start) == 0 && 
-	    start > 0)
-		unit++;
-	if (device_get_unit(dev) < unit) {
-		dc = device_get_devclass(dev);
-		while (devclass_get_device(dc, unit))
-			unit++;
-		device_printf(dev, "moving to sio%d\n", unit);
-		err = device_set_unit(dev, unit);	/* EVIL DO NOT COPY */
-		if (err)
-			device_printf(dev, "error moving device %d\n", err);
-	}
-}
-
 static int
 sio_puc_attach(device_t dev)
 {
@@ -98,7 +70,6 @@
 	if (BUS_READ_IVAR(device_get_parent(dev), dev, PUC_IVAR_CLOCK,
 	    &rclk) != 0)
 		rclk = DEFAULT_RCLK;
-	sio_puc_kludge_unit(dev);
 	return (sioattach(dev, 0, rclk));
 }
 

==== //depot/projects/vimage-commit2/src/sys/fs/cd9660/cd9660_bmap.c#2 (text+ko) ====

@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/fs/cd9660/cd9660_bmap.c,v 1.16 2007/02/11 13:54:25 rodrigc Exp $");
+__FBSDID("$FreeBSD: src/sys/fs/cd9660/cd9660_bmap.c,v 1.17 2008/11/18 23:19:43 jhb Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -46,9 +46,10 @@
 #include <fs/cd9660/cd9660_node.h>
 
 /*
- * Bmap converts a the logical block number of a file to its physical block
- * number on the disk. The conversion is done by using the logical block
- * number to index into the data block (extent) for the file.
+ * Bmap converts the logical block number of a file to its physical
+ * block number on the disk. The conversion is done by using the
+ * logical block number to index into the data block (extent) for the
+ * file.
  */
 int
 cd9660_bmap(ap)

==== //depot/projects/vimage-commit2/src/sys/fs/cd9660/cd9660_node.c#4 (text+ko) ====

@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/fs/cd9660/cd9660_node.c,v 1.58 2008/10/23 15:53:51 des Exp $");
+__FBSDID("$FreeBSD: src/sys/fs/cd9660/cd9660_node.c,v 1.59 2008/11/18 23:13:40 jhb Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -72,7 +72,6 @@
 	if (prtactive && vrefcnt(vp) != 0)
 		vprint("cd9660_inactive: pushing active", vp);
 
-	ip->i_flag = 0;
 	/*
 	 * If we are done with the inode, reclaim it
 	 * so that it can be reused immediately.

==== //depot/projects/vimage-commit2/src/sys/fs/cd9660/cd9660_node.h#2 (text+ko) ====

@@ -32,7 +32,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)cd9660_node.h	8.6 (Berkeley) 5/14/95
- * $FreeBSD: src/sys/fs/cd9660/cd9660_node.h,v 1.33 2007/02/11 13:54:25 rodrigc Exp $
+ * $FreeBSD: src/sys/fs/cd9660/cd9660_node.h,v 1.34 2008/11/18 23:13:40 jhb Exp $
  */
 
 /*
@@ -58,7 +58,6 @@
 
 struct iso_node {
 	struct	vnode *i_vnode;	/* vnode associated with this inode */
-	u_long	i_flag;		/* see below */
 	ino_t	i_number;	/* the identity of the inode */
 				/* we use the actual starting block of the file */
 	struct	iso_mnt *i_mnt;	/* filesystem associated with this inode */
@@ -78,9 +77,6 @@
 #define	i_forw		i_chain[0]
 #define	i_back		i_chain[1]
 
-/* flags */
-#define	IN_ACCESS	0x0020		/* inode access time to be updated */
-
 #define VTOI(vp) ((struct iso_node *)(vp)->v_data)
 #define ITOV(ip) ((ip)->i_vnode)
 

==== //depot/projects/vimage-commit2/src/sys/fs/cd9660/cd9660_vfsops.c#4 (text+ko) ====

@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/fs/cd9660/cd9660_vfsops.c,v 1.157 2008/10/28 13:44:11 trasz Exp $");
+__FBSDID("$FreeBSD: src/sys/fs/cd9660/cd9660_vfsops.c,v 1.159 2008/11/18 23:19:43 jhb Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -153,14 +153,14 @@
 	 * Not an update, or updating the name: look up the name
 	 * and verify that it refers to a sensible block device.
 	 */
-	NDINIT(&ndp, LOOKUP, FOLLOW, UIO_SYSSPACE, fspec, td);
+	NDINIT(&ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE, fspec, td);
 	if ((error = namei(&ndp)))
 		return (error);
 	NDFREE(&ndp, NDF_ONLY_PNBUF);
 	devvp = ndp.ni_vp;
 
 	if (!vn_isdisk(devvp, &error)) {
-		vrele(devvp);
+		vput(devvp);
 		return (error);
 	}
 
@@ -169,7 +169,6 @@
 	 * or has superuser abilities
 	 */
 	accmode = VREAD;
-	vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
 	error = VOP_ACCESS(devvp, accmode, td->td_ucred, td);
 	if (error)
 		error = priv_check(td, PRIV_VFS_MOUNT_PERM);
@@ -177,22 +176,20 @@
 		vput(devvp);
 		return (error);
 	}
-	VOP_UNLOCK(devvp, 0);
 
 	if ((mp->mnt_flag & MNT_UPDATE) == 0) {
 		error = iso_mountfs(devvp, mp);
+		if (error)
+			vrele(devvp);
 	} else {
 		if (devvp != imp->im_devvp)
 			error = EINVAL;	/* needs translation */
-		else
-			vrele(devvp);
+		vput(devvp);
 	}
-	if (error) {
-		vrele(devvp);
-		return error;
-	}
+	if (error)
+		return (error);
 	vfs_mountedfrom(mp, fspec);
-	return 0;
+	return (0);
 }
 
 /*
@@ -222,7 +219,6 @@
 	struct bufobj *bo;
 	char *cs_local, *cs_disk;
 
-	vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
 	DROP_GIANT();
 	g_topology_lock();
 	error = g_vfs_open(devvp, &cp, "cd9660", 0);
@@ -505,11 +501,6 @@
 
 	if (mntflags & MNT_FORCE)
 		flags |= FORCECLOSE;
-#if 0
-	mntflushbuf(mp, 0);
-	if (mntinvalbuf(mp))
-		return EBUSY;
-#endif
 	if ((error = vflush(mp, 0, flags, td)))
 		return (error);
 

==== //depot/projects/vimage-commit2/src/sys/fs/cd9660/cd9660_vnops.c#5 (text+ko) ====

@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/fs/cd9660/cd9660_vnops.c,v 1.117 2008/10/28 13:44:11 trasz Exp $");
+__FBSDID("$FreeBSD: src/sys/fs/cd9660/cd9660_vnops.c,v 1.120 2008/11/18 23:19:43 jhb Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -295,7 +295,6 @@
 		return (0);
 	if (uio->uio_offset < 0)
 		return (EINVAL);
-	ip->i_flag |= IN_ACCESS;
 	imp = ip->i_mnt;
 	do {
 		lbn = lblkno(imp, uio->uio_offset);
@@ -397,7 +396,7 @@
 
 	cl = idp->current.d_namlen;
 	cname = idp->current.d_name;
-assoc = (cl > 1) && (*cname == ASSOCCHAR);
+	assoc = (cl > 1) && (*cname == ASSOCCHAR);
 	if (assoc) {
 		cl--;
 		cname++;
@@ -744,12 +743,6 @@
 	if (bp->b_blkno == bp->b_lblkno) {
 		bp->b_blkno = (ip->iso_start + bp->b_lblkno) <<
 		    (ip->i_mnt->im_bshift - DEV_BSHIFT);
-		if ((long)bp->b_blkno == -1)	/* XXX: cut&paste junk ? */
-			clrbuf(bp);
-	}
-	if ((long)bp->b_blkno == -1) {	/* XXX: cut&paste junk ? */
-		bufdone(bp);
-		return (0);
 	}
 	bp->b_iooffset = dbtob(bp->b_blkno);
 	bo = ip->i_mnt->im_bo;

==== //depot/projects/vimage-commit2/src/sys/isa/isa_common.c#4 (text+ko) ====

@@ -58,7 +58,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/isa/isa_common.c,v 1.48 2008/11/02 18:48:54 imp Exp $");
+__FBSDID("$FreeBSD: src/sys/isa/isa_common.c,v 1.49 2008/11/18 21:01:54 jhb Exp $");
 
 #include "opt_isa.h"
 
@@ -467,15 +467,41 @@
 	return (0);
 }
 
+/*
+ * Claim any unallocated resources to keep other devices from using
+ * them.
+ */
+static void
+isa_claim_resources(device_t dev, device_t child)
+{
+	struct isa_device *idev = DEVTOISA(child);
+	struct resource_list *rl = &idev->id_resources;
+	struct resource_list_entry *rle;
+	int rid;
+
+	STAILQ_FOREACH(rle, rl, link) {
+		if (!rle->res) {
+			rid = rle->rid;
+			resource_list_alloc(rl, dev, child, rle->type, &rid,
+			    0ul, ~0ul, 1, 0);
+		}
+	}
+}
+
+/*
+ * Called after other devices have initialised to probe for isa devices.
+ */
 void
 isa_probe_children(device_t dev)
 {
-	device_t *children;
+	struct isa_device *idev;
+	device_t *children, child;
 	struct isa_config *cfg;
 	int nchildren, i;
 
 	/*
-	 * Create all the children by calling driver's identify methods.
+	 * Create all the non-hinted children by calling drivers'
+	 * identify methods.
 	 */
 	bus_generic_probe(dev);
 
@@ -496,8 +522,7 @@
 	}
 
 	for (i = 0; i < nchildren; i++) {
-		device_t child = children[i];
-		struct isa_device *idev = DEVTOISA(child);
+		idev = DEVTOISA(children[i]);
 
 		bzero(cfg, sizeof(*cfg));
 		if (idev->id_config_cb)
@@ -507,16 +532,39 @@
 	free(cfg, M_TEMP);
 
 	/*
-	 * Next probe all non-pnp devices so that they claim their
-	 * resources first.
+	 * Next, probe all the PnP BIOS devices so they can subsume any
+	 * hints.
+	 */
+	for (i = 0; i < nchildren; i++) {
+		child = children[i];
+		idev = DEVTOISA(child);
+
+		if (idev->id_order > ISA_ORDER_PNPBIOS)
+			continue;
+		if (!TAILQ_EMPTY(&idev->id_configs) &&
+		    !isa_assign_resources(child))
+			continue;
+
+		if (device_probe_and_attach(child) == 0)
+			isa_claim_resources(dev, child);
+	}
+	free(children, M_TEMP);
+
+	/*
+	 * Next, enumerate hinted devices and probe all non-pnp devices so
+	 * that they claim their resources first.
 	 */
+	bus_enumerate_hinted_children(dev);
+	if (device_get_children(dev, &children, &nchildren))
+		return;
 	if (bootverbose)
 		printf("isa_probe_children: probing non-PnP devices\n");
 	for (i = 0; i < nchildren; i++) {
-		device_t child = children[i];
-		struct isa_device *idev = DEVTOISA(child);
+		child = children[i];
+		idev = DEVTOISA(child);
 
-		if (TAILQ_FIRST(&idev->id_configs))
+		if (device_is_attached(child) ||
+		    !TAILQ_EMPTY(&idev->id_configs))
 			continue;
 
 		device_probe_and_attach(child);
@@ -528,31 +576,15 @@
 	if (bootverbose)
 		printf("isa_probe_children: probing PnP devices\n");
 	for (i = 0; i < nchildren; i++) {
-		device_t child = children[i];
-		struct isa_device* idev = DEVTOISA(child);
+		child = children[i];
+		idev = DEVTOISA(child);
 
-		if (!TAILQ_FIRST(&idev->id_configs))
+		if (device_is_attached(child) || TAILQ_EMPTY(&idev->id_configs))
 			continue;
 
 		if (isa_assign_resources(child)) {
-			struct resource_list *rl = &idev->id_resources;
-			struct resource_list_entry *rle;
-
 			device_probe_and_attach(child);
-
-			/*
-			 * Claim any unallocated resources to keep other
-			 * devices from using them.
-			 */
-			STAILQ_FOREACH(rle, rl, link) {
-				if (!rle->res) {
-					int rid = rle->rid;
-					resource_list_alloc(rl, dev, child,
-							    rle->type,
-							    &rid,
-							    0, ~0, 1, 0);
-				}
-			}
+			isa_claim_resources(dev, child);
 		}
 	}
 
@@ -580,6 +612,7 @@
 
 	resource_list_init(&idev->id_resources);
 	TAILQ_INIT(&idev->id_configs);
+	idev->id_order = order;
 
 	device_set_ivars(child, idev);
 
@@ -833,23 +866,9 @@
 isa_child_detached(device_t dev, device_t child)
 {
 	struct isa_device* idev = DEVTOISA(child);
-	struct resource_list *rl = &idev->id_resources;
-	struct resource_list_entry *rle;
 
-	if (TAILQ_FIRST(&idev->id_configs)) {
-		/*
-		 * Claim any unallocated resources to keep other
-		 * devices from using them.
-		 */
-		STAILQ_FOREACH(rle, rl, link) {
-			if (!rle->res) {
-				int rid = rle->rid;
-				resource_list_alloc(rl, dev, child,
-						    rle->type,
-						    &rid, 0, ~0, 1, 0);
-			}
-		}
-	}
+	if (TAILQ_FIRST(&idev->id_configs))
+		isa_claim_resources(dev, child);
 }
 
 static void
@@ -900,20 +919,8 @@
 
 		device_probe_and_attach(child);
 
-		if (TAILQ_FIRST(&idev->id_configs)) {
-			/*
-			 * Claim any unallocated resources to keep other
-			 * devices from using them.
-			 */
-			STAILQ_FOREACH(rle, rl, link) {
-				if (!rle->res) {
-					int rid = rle->rid;
-					resource_list_alloc(rl, dev, child,
-							    rle->type,
-							    &rid, 0, ~0, 1, 0);
-				}
-			}
-		}
+		if (TAILQ_FIRST(&idev->id_configs))
+			isa_claim_resources(dev, child);
 	}
 
 	free(children, M_TEMP);
@@ -1077,6 +1084,8 @@
 	DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
 	DEVMETHOD(bus_child_pnpinfo_str, isa_child_pnpinfo_str),
 	DEVMETHOD(bus_child_location_str, isa_child_location_str),
+	DEVMETHOD(bus_hinted_child,	isa_hinted_child),
+	DEVMETHOD(bus_hint_device_unit,	isa_hint_device_unit),
 
 	/* ISA interface */
 	DEVMETHOD(isa_add_config,	isa_add_config),
@@ -1086,11 +1095,7 @@
 	{ 0, 0 }
 };
 
-driver_t isa_driver = {
-	"isa",
-	isa_methods,
-	1,			/* no softc */
-};
+DEFINE_CLASS_0(isa, isa_driver, isa_methods, 0);
 
 devclass_t isa_devclass;
 

==== //depot/projects/vimage-commit2/src/sys/isa/isa_common.h#3 (text+ko) ====

@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $FreeBSD: src/sys/isa/isa_common.h,v 1.16 2008/11/02 18:48:54 imp Exp $
+ * $FreeBSD: src/sys/isa/isa_common.h,v 1.17 2008/11/18 21:01:54 jhb Exp $
  */
 
 /*
@@ -59,6 +59,7 @@
 	int			id_pnpbios_handle; /* pnp handle, if any */
 	int			id_pnp_csn; /* pnp Card Number */
 	int			id_pnp_ldn; /* pnp Logical device on card */
+	int			id_order;
 };
 
 #define DEVTOISA(dev)	((struct isa_device *) device_get_ivars(dev))

==== //depot/projects/vimage-commit2/src/sys/isa/isahint.c#2 (text+ko) ====

@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/isa/isahint.c,v 1.18 2006/07/08 16:50:10 imp Exp $");
+__FBSDID("$FreeBSD: src/sys/isa/isahint.c,v 1.19 2008/11/18 21:01:54 jhb Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -33,10 +33,11 @@
 #include <sys/bus.h>
 #include <sys/module.h>
 #include <isa/isavar.h>
+#include <isa/isa_common.h>
 #include <machine/resource.h>
 
-static void
-isahint_add_device(device_t parent, const char *name, int unit)
+void
+isa_hinted_child(device_t parent, const char *name, int unit)
 {
 	device_t	child;
 	int		sensitive, start, count;
@@ -82,43 +83,79 @@
 	isa_set_configattr(child, (isa_get_configattr(child)|ISACFGATTR_HINTS));
 }
 
-static void
-isahint_identify(driver_t *driver, device_t parent)
+static int
+isa_match_resource_hint(device_t dev, int type, long value)
 {
-	int i;
-	static char buf[] = "isaXXX";
-	const char *dname;
-	int dunit;
+	struct isa_device* idev = DEVTOISA(dev);
+	struct resource_list *rl = &idev->id_resources;
+	struct resource_list_entry *rle;
 
-	/*
-	 * Add all devices configured to be attached to parent.
-	 */
-	sprintf(buf, "isa%d", device_get_unit(parent));
-	i = 0;
-	while (resource_find_match(&i, &dname, &dunit, "at", buf) == 0)
-		isahint_add_device(parent, dname, dunit);
-
-	/*
-	 * and isa?
-	 */
-	i = 0;
-	while (resource_find_match(&i, &dname, &dunit, "at", "isa") == 0)
-		isahint_add_device(parent, dname, dunit);
+	STAILQ_FOREACH(rle, rl, link) {
+		if (rle->type != type)
+			continue;
+		if (rle->start <= value && rle->end >= value)
+			return (1);
+	}
+	return (0);
 }
 
-static device_method_t isahint_methods[] = {
-	/* Device interface */
-	DEVMETHOD(device_identify,	isahint_identify),
+void
+isa_hint_device_unit(device_t bus, device_t child, const char *name, int *unitp)
+{
+	const char *s;
+	long value;
+	int line, matches, unit;
 
-	{ 0, 0 }
-};
+	line = 0;
+	for (;;) {
+		if (resource_find_dev(&line, name, &unit, "at", NULL) != 0)
+			break;
 
-static driver_t isahint_driver = {
-	"hint",
-	isahint_methods,
-	1,			/* no softc */
-};
+		/* Must have an "at" for isa. */
+		resource_string_value(name, unit, "at", &s);
+		if (!(strcmp(s, device_get_nameunit(bus)) == 0 ||
+		    strcmp(s, device_get_name(bus)) == 0))
+			continue;
 
-static devclass_t hint_devclass;
+		/*
+		 * Check for matching resources.  We must have at least one,
+		 * and all resources specified have to match.
+		 *
+		 * XXX: We may want to revisit this to be more lenient and wire
+		 * as long as it gets one match.
+		 */
+		matches = 0;
+		if (resource_long_value(name, unit, "port", &value) == 0) {
+			if (isa_match_resource_hint(child, SYS_RES_IOPORT,
+			    value))
+				matches++;
+			else
+				continue;
+		}
+		if (resource_long_value(name, unit, "maddr", &value) == 0) {
+			if (isa_match_resource_hint(child, SYS_RES_MEMORY,
+			    value))
+				matches++;
+			else
+				continue;
+		}
+		if (resource_long_value(name, unit, "irq", &value) == 0) {
+			if (isa_match_resource_hint(child, SYS_RES_IRQ, value))
+				matches++;
+			else
+				continue;
+		}
+		if (resource_long_value(name, unit, "drq", &value) == 0) {
+			if (isa_match_resource_hint(child, SYS_RES_DRQ, value))
+				matches++;
+			else
+				continue;
+		}
 
-DRIVER_MODULE(isahint, isa, isahint_driver, hint_devclass, 0, 0);
+		if (matches > 0) {
+			/* We have a winner! */
+			*unitp = unit;
+			break;
+		}
+	}
+}

==== //depot/projects/vimage-commit2/src/sys/isa/isavar.h#4 (text+ko) ====

@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $FreeBSD: src/sys/isa/isavar.h,v 1.31 2008/11/02 18:48:54 imp Exp $
+ * $FreeBSD: src/sys/isa/isavar.h,v 1.32 2008/11/18 21:01:54 jhb Exp $
  */
 
 #ifndef _ISA_ISAVAR_H_
@@ -181,6 +181,9 @@
 		    (int)(chan), (uintmax_t)(size)); \
 	} while (0) 
 
+void	isa_hinted_child(device_t parent, const char *name, int unit);
+void	isa_hint_device_unit(device_t bus, device_t child, const char *name,
+	    int *unitp);
 int	isab_attach(device_t dev);
 
 #ifdef PC98

==== //depot/projects/vimage-commit2/src/sys/kern/bus_if.m#2 (text+ko) ====

@@ -23,7 +23,7 @@
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 #
-# $FreeBSD: src/sys/kern/bus_if.m,v 1.35 2008/03/20 21:24:32 jhb Exp $
+# $FreeBSD: src/sys/kern/bus_if.m,v 1.36 2008/11/18 21:01:54 jhb Exp $
 #
 
 #include <sys/bus.h>
@@ -544,7 +544,7 @@
  */
 METHOD void hinted_child {
 	device_t	_dev;
-	const char *	_dname;
+	const char	*_dname;
 	int		_dunit;
 };
 
@@ -558,3 +558,19 @@
 	device_t	_dev;
 	device_t	_child;
 } DEFAULT bus_generic_get_dma_tag;
+
+/**
+ * @brief Allow the bus to determine the unit number of a device.
+ *
+ * @param _dev		the parent device of @p _child
+ * @param _child	the device whose unit is to be wired
+ * @param _name		the name of the device's new devclass
+ * @param _unitp	a pointer to the device's new unit value
+ */
+METHOD void hint_device_unit {
+	device_t	_dev;
+	device_t	_child;
+	const char	*_name;
+	int		*_unitp;
+};
+

==== //depot/projects/vimage-commit2/src/sys/kern/subr_bus.c#5 (text+ko) ====

@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/kern/subr_bus.c,v 1.211 2008/11/13 21:46:19 n_hibma Exp $");
+__FBSDID("$FreeBSD: src/sys/kern/subr_bus.c,v 1.212 2008/11/18 21:01:54 jhb Exp $");
 
 #include "opt_bus.h"
 
@@ -1315,12 +1315,18 @@
  * @retval ENOMEM	memory allocation failure
  */
 static int
-devclass_alloc_unit(devclass_t dc, int *unitp)
+devclass_alloc_unit(devclass_t dc, device_t dev, int *unitp)
 {
+	const char *s;
 	int unit = *unitp;
 
 	PDEBUG(("unit %d in devclass %s", unit, DEVCLANAME(dc)));
 

>>> TRUNCATED FOR MAIL (1000 lines) <<<


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