[src/trunk]: src/sys/arch/sparc64 Implement pci_decompose_tag().

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1857d1a78442
branches:  trunk
changeset: 527007:1857d1a78442
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Wed May 15 17:40:11 2002 +0000

description:
Implement pci_decompose_tag().

diffstat:

 sys/arch/sparc64/dev/pci_machdep.c     |  17 ++++++++++++++++-
 sys/arch/sparc64/include/pci_machdep.h |   7 ++++++-
 2 files changed, 22 insertions(+), 2 deletions(-)

diffs (59 lines):

diff -r b16807c144af -r 1857d1a78442 sys/arch/sparc64/dev/pci_machdep.c
--- a/sys/arch/sparc64/dev/pci_machdep.c        Wed May 15 17:30:04 2002 +0000
+++ b/sys/arch/sparc64/dev/pci_machdep.c        Wed May 15 17:40:11 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pci_machdep.c,v 1.27 2002/05/06 22:18:51 eeh Exp $     */
+/*     $NetBSD: pci_machdep.c,v 1.28 2002/05/15 17:40:11 thorpej Exp $ */
 
 /*
  * Copyright (c) 1999, 2000 Matthew R. Green
@@ -332,6 +332,21 @@
        return (tag);
 }
 
+void
+pci_decompose_tag(pc, tag, bp, dp, fp)
+       pci_chipset_tag_t pc;
+       pcitag_t tag;
+       int *bp, *dp, *fp;
+{
+
+       if (bp != NULL)
+               *bp = PCITAG_BUS(tag);
+       if (dp != NULL)
+               *dp = PCITAG_DEV(tag);
+       if (fp != NULL)
+               *fp = PCITAG_FUN(tag);
+}
+
 pcitag_t
 ofpci_make_tag(pc, node, b, d, f)
        pci_chipset_tag_t pc;
diff -r b16807c144af -r 1857d1a78442 sys/arch/sparc64/include/pci_machdep.h
--- a/sys/arch/sparc64/include/pci_machdep.h    Wed May 15 17:30:04 2002 +0000
+++ b/sys/arch/sparc64/include/pci_machdep.h    Wed May 15 17:40:11 2002 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pci_machdep.h,v 1.9 2002/02/26 22:39:14 eeh Exp $ */
+/* $NetBSD: pci_machdep.h,v 1.10 2002/05/15 17:40:12 thorpej Exp $ */
 
 /*
  * Copyright (c) 1999 Matthew R. Green
@@ -66,6 +66,9 @@
 
 #define        PCITAG_NODE(x)          (int)(((x)>>32)&0xffffffff)
 #define        PCITAG_OFFSET(x)        ((x)&0xffffffff)
+#define        PCITAG_BUS(t)           ((PCITAG_OFFSET(t)>>16)&0xff)
+#define        PCITAG_DEV(t)           ((PCITAG_OFFSET(t)>>11)&0x1f)
+#define        PCITAG_FUN(t)           ((PCITAG_OFFSET(t)>>8)&0x7)
 #define        PCITAG_CREATE(n,b,d,f)  (((u_int64_t)(n)<<32)|((b)<<16)|((d)<<11)|((f)<<8))
 #define        PCITAG_SETNODE(t,n)     ((t)&0xffffffff)|(((n)<<32)
 typedef u_int64_t pcitag_t; 
@@ -81,6 +84,8 @@
 #endif
 int            pci_bus_maxdevs(pci_chipset_tag_t, int);
 pcitag_t       pci_make_tag(pci_chipset_tag_t, int, int, int);
+void           pci_decompose_tag(pci_chipset_tag_t, pcitag_t, int *, int *,
+                   int *);
 pcireg_t       pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
 void           pci_conf_write(pci_chipset_tag_t, pcitag_t, int,
                                    pcireg_t);