[src/trunk]: src/sys/arch/i386/pci Add code to deal with the losing Libretto ...

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

details:   https://anonhg.NetBSD.org/src/rev/6c20933e51c0
branches:  trunk
changeset: 566185:6c20933e51c0
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Apr 30 02:45:37 2004 +0000

description:
Add code to deal with the losing Libretto L2/L3 pcibios. From Masanori
Kanaoka. I've been sitting on this code for 3 years, and have not done
anything better with it. It is ugly, it needs to be handled better, but
it is better to have it #ifdef'ed out rather than nothing.

diffstat:

 sys/arch/i386/pci/pcibios.c |  56 +++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 54 insertions(+), 2 deletions(-)

diffs (98 lines):

diff -r 323a89c0b2a8 -r 6c20933e51c0 sys/arch/i386/pci/pcibios.c
--- a/sys/arch/i386/pci/pcibios.c       Fri Apr 30 02:44:03 2004 +0000
+++ b/sys/arch/i386/pci/pcibios.c       Fri Apr 30 02:45:37 2004 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pcibios.c,v 1.17 2004/04/24 15:09:54 uwe Exp $ */
+/*     $NetBSD: pcibios.c,v 1.18 2004/04/30 02:45:37 christos Exp $    */
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -67,7 +67,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pcibios.c,v 1.17 2004/04/24 15:09:54 uwe Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pcibios.c,v 1.18 2004/04/30 02:45:37 christos Exp $");
 
 #include "opt_pcibios.h"
 
@@ -119,6 +119,20 @@
 int    pcibios_return_code(u_int16_t, const char *);
 
 void   pcibios_print_exclirq(void);
+
+#ifdef PCIBIOS_LIBRETTO_FIXUP
+/* for Libretto L2/L3 hack */
+static void    pcibios_fixup_pir_table(void);
+static void    pcibios_fixup_pir_table_mask(struct pcibios_linkmap *);
+
+struct pcibios_linkmap pir_mask[] = {
+       { 2,    0x0040 },
+       { 7,    0x0080 },
+       { 8,    0x0020 },
+       { 0,    0x0000 }
+};
+#endif
+
 #ifdef PCIINTR_DEBUG
 void   pcibios_print_pir_table(void);
 #endif
@@ -301,6 +315,11 @@
                }
                printf("\n");
                pcibios_print_exclirq();
+
+#ifdef PCIBIOS_LIBRETTO_FIXUP
+               /* for Libretto L2/L3 hack */
+               pcibios_fixup_pir_table();
+#endif
 #ifdef PCIINTR_DEBUG
                pcibios_print_pir_table();
 #endif
@@ -333,6 +352,11 @@
        printf("PCI BIOS has %d Interrupt Routing table entries\n",
            pcibios_pir_table_nentries);
        pcibios_print_exclirq();
+
+#ifdef PCIBIOS_LIBRETTO_FIXUP
+       /* for Libretto L2/L3 hack */
+       pcibios_fixup_pir_table();
+#endif
 #ifdef PCIINTR_DEBUG
        pcibios_print_pir_table();
 #endif
@@ -474,6 +498,34 @@
        }
 }
 
+#ifdef PCIBIOS_LIBRETTO_FIXUP
+/* for Libretto L2/L3 hack */
+static void 
+pcibios_fixup_pir_table()
+{
+       struct pcibios_linkmap *m;
+
+       for (m = pir_mask; m->link != 0; m++)
+               pcibios_fixup_pir_table_mask(m);
+}
+
+void 
+pcibios_fixup_pir_table_mask(mask)
+       struct pcibios_linkmap *mask;
+{
+       int i, j;
+
+       for (i = 0; i < pcibios_pir_table_nentries; i++) {
+               for (j = 0; j < 4; j++) {
+                       if (pcibios_pir_table[i].linkmap[j].link == mask->link) {
+                               pcibios_pir_table[i].linkmap[j].bitmap
+                                   &= mask->bitmap; 
+                       }
+               }
+       }
+}
+#endif
+
 #ifdef PCIINTR_DEBUG
 void
 pcibios_print_pir_table()