From d50c7b65af699615c4fdce907899e59fd6349245 Mon Sep 17 00:00:00 2001
From: se <se@FreeBSD.org>
Date: Tue, 12 Nov 1996 23:18:12 +0000
Subject: Add support for header type == 1 devices (PCI 2.1 compatible PCI to
 PCI bridges with support for 64 bit memory addresses and 32 bit I/O
 addresses).

The code is not complete. It ignores the upper half of the long addresses.
This is not a problem on PC compatible systems, but has to be fixed for
real computers.
---
 sys/dev/pci/pci.c    | 9 +++++++--
 sys/dev/pci/pcireg.h | 5 +++--
 sys/pci/pci.c        | 9 +++++++--
 sys/pci/pci_ioctl.h  | 1 +
 sys/pci/pcireg.h     | 5 +++--
 sys/sys/pciio.h      | 1 +
 6 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/sys/dev/pci/pci.c b/sys/dev/pci/pci.c
index 2913c5b..054bdaa 100644
--- a/sys/dev/pci/pci.c
+++ b/sys/dev/pci/pci.c
@@ -1,6 +1,6 @@
 /**************************************************************************
 **
-**  $Id: pci.c,v 1.57 1996/10/22 20:20:11 se Exp $
+**  $Id: pci.c,v 1.58 1996/11/12 23:10:17 se Exp $
 **
 **  General subroutines for the PCI bus.
 **  pci_configure ()
@@ -1743,9 +1743,14 @@ pci_remember(int bus, int dev, int func)
 	p->pc_sel.pc_bus = bus;
 	p->pc_sel.pc_dev = dev;
 	p->pc_sel.pc_func = func;
+	p->pc_hdr = (pci_conf_read (tag, PCI_HEADER_MISC) >> 16) & 0xff;
 	tag = pcibus->pb_tag  (bus, dev, func);
 	p->pc_devid = pci_conf_read(tag, PCI_ID_REG);
-	p->pc_subid = pci_conf_read(tag, PCI_SUBID_REG);
+	if ((p->pc_hdr & 0x7f) == 1) {
+		p->pc_subid = pci_conf_read(tag, PCI_SUBID_REG1);
+	} else {
+		p->pc_subid = pci_conf_read(tag, PCI_SUBID_REG0);
+	}
 	p->pc_class = pci_conf_read(tag, PCI_CLASS_REG);
 }
 
diff --git a/sys/dev/pci/pcireg.h b/sys/dev/pci/pcireg.h
index 437a0f3..d8b4b5b 100644
--- a/sys/dev/pci/pcireg.h
+++ b/sys/dev/pci/pcireg.h
@@ -1,6 +1,6 @@
 /**************************************************************************
 **
-**  $Id: pcireg.h,v 1.8 1996/10/22 20:20:14 se Exp $
+**  $Id: pcireg.h,v 1.9 1996/11/12 23:10:24 se Exp $
 **
 **  Names for PCI configuration space registers.
 **
@@ -160,7 +160,8 @@
 #define PCI_PCI_BRIDGE_MEM_REG		0x20
 #define PCI_PCI_BRIDGE_PMEM_REG		0x24
 
-#define PCI_SUBID_REG			0x2c
+#define PCI_SUBID_REG0			0x2c
+#define PCI_SUBID_REG1			0x34
 
 #define PCI_SUBORDINATE_BUS_MASK	0x00ff0000
 #define PCI_SECONDARY_BUS_MASK		0x0000ff00
diff --git a/sys/pci/pci.c b/sys/pci/pci.c
index 2913c5b..054bdaa 100644
--- a/sys/pci/pci.c
+++ b/sys/pci/pci.c
@@ -1,6 +1,6 @@
 /**************************************************************************
 **
-**  $Id: pci.c,v 1.57 1996/10/22 20:20:11 se Exp $
+**  $Id: pci.c,v 1.58 1996/11/12 23:10:17 se Exp $
 **
 **  General subroutines for the PCI bus.
 **  pci_configure ()
@@ -1743,9 +1743,14 @@ pci_remember(int bus, int dev, int func)
 	p->pc_sel.pc_bus = bus;
 	p->pc_sel.pc_dev = dev;
 	p->pc_sel.pc_func = func;
+	p->pc_hdr = (pci_conf_read (tag, PCI_HEADER_MISC) >> 16) & 0xff;
 	tag = pcibus->pb_tag  (bus, dev, func);
 	p->pc_devid = pci_conf_read(tag, PCI_ID_REG);
-	p->pc_subid = pci_conf_read(tag, PCI_SUBID_REG);
+	if ((p->pc_hdr & 0x7f) == 1) {
+		p->pc_subid = pci_conf_read(tag, PCI_SUBID_REG1);
+	} else {
+		p->pc_subid = pci_conf_read(tag, PCI_SUBID_REG0);
+	}
 	p->pc_class = pci_conf_read(tag, PCI_CLASS_REG);
 }
 
diff --git a/sys/pci/pci_ioctl.h b/sys/pci/pci_ioctl.h
index ea0b939..4d9e1cc 100644
--- a/sys/pci/pci_ioctl.h
+++ b/sys/pci/pci_ioctl.h
@@ -11,6 +11,7 @@ struct pcisel {
 
 struct	pci_conf {
     struct pcisel	pc_sel;		/* bus+slot+function */
+    u_char		pc_hdr;		/* PCI header type */
     pcidi_t		pc_devid;	/* device ID */
     pcidi_t		pc_subid;	/* subvendor ID */
     u_int32_t		pc_class;	/* device class */
diff --git a/sys/pci/pcireg.h b/sys/pci/pcireg.h
index 437a0f3..d8b4b5b 100644
--- a/sys/pci/pcireg.h
+++ b/sys/pci/pcireg.h
@@ -1,6 +1,6 @@
 /**************************************************************************
 **
-**  $Id: pcireg.h,v 1.8 1996/10/22 20:20:14 se Exp $
+**  $Id: pcireg.h,v 1.9 1996/11/12 23:10:24 se Exp $
 **
 **  Names for PCI configuration space registers.
 **
@@ -160,7 +160,8 @@
 #define PCI_PCI_BRIDGE_MEM_REG		0x20
 #define PCI_PCI_BRIDGE_PMEM_REG		0x24
 
-#define PCI_SUBID_REG			0x2c
+#define PCI_SUBID_REG0			0x2c
+#define PCI_SUBID_REG1			0x34
 
 #define PCI_SUBORDINATE_BUS_MASK	0x00ff0000
 #define PCI_SECONDARY_BUS_MASK		0x0000ff00
diff --git a/sys/sys/pciio.h b/sys/sys/pciio.h
index ea0b939..4d9e1cc 100644
--- a/sys/sys/pciio.h
+++ b/sys/sys/pciio.h
@@ -11,6 +11,7 @@ struct pcisel {
 
 struct	pci_conf {
     struct pcisel	pc_sel;		/* bus+slot+function */
+    u_char		pc_hdr;		/* PCI header type */
     pcidi_t		pc_devid;	/* device ID */
     pcidi_t		pc_subid;	/* subvendor ID */
     u_int32_t		pc_class;	/* device class */
-- 
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