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Add generic PCI to PCI bridge support.

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Improve verbose boot messages for unidentified chips.
This commit is contained in:
Stefan Eßer 1996-02-17 23:57:04 +00:00
parent 2e32d69db1
commit 07d9d14a55
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=14133
3 changed files with 177 additions and 46 deletions
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89
sys/dev/pci/pci.c
View File

@ -1,6 +1,6 @@
/**************************************************************************
**
** $Id: pci.c,v 1.43 1996/01/27 20:14:31 wollman Exp $
** $Id: pci.c,v 1.44 1996/01/30 01:14:29 se Exp $
**
** General subroutines for the PCI bus.
** pci_configure ()
@ -474,6 +474,8 @@ pci_bus_config (void)
real_device:
#ifndef PCI_QUIET
#ifdef PCI_BRIDGE_DEBUG
if (bootverbose) {
printf ("\tconfig header: 0x%08x 0x%08x 0x%08x 0x%08x\n",
pci_conf_read (tag, 0),
@ -481,6 +483,8 @@ pci_bus_config (void)
pci_conf_read (tag, 8),
pci_conf_read (tag, 12));
}
#endif
#endif
if (func == 0 && pci_mfdev (bus_no, device)) {
maxfunc = 7;
@ -1563,7 +1567,7 @@ static struct vt VendorTable[] = {
};
typedef struct {
const char subclass;
const int subclass;
const char *name;
} subclass_name;
@ -1659,9 +1663,13 @@ static const char *const majclasses[] = {
void not_supported (pcici_t tag, u_long type)
{
u_char reg;
u_long reg;
u_long data;
u_char class;
u_char subclass;
struct vt * vp;
int pciint;
int irq;
/*
** lookup the names.
@ -1680,47 +1688,86 @@ void not_supported (pcici_t tag, u_long type)
printf (", device=0x%04lx", type >> 16);
data = (pcibus->pb_read(tag, PCI_CLASS_REG) >> 24) & 0xff;
if (data < sizeof(majclasses) / sizeof(majclasses[0]))
printf(", class=%s", majclasses[data]);
if (data < sizeof(subclasses) / sizeof(subclasses[0])) {
const subclass_name *p = subclasses[data];
data = pcibus->pb_read(tag, PCI_CLASS_REG);
class = (data >> 24) & 0xff;
subclass = (data >> 16) & 0xff;
data = (pcibus->pb_read(tag, PCI_CLASS_REG) >> 16) & 0xff;
while (p->name && (p->subclass != data))
if (class < sizeof(majclasses) / sizeof(majclasses[0])) {
printf(", class=%s", majclasses[class]);
} else {
printf(", class=0x%02x", class);
}
if (subclass < sizeof(subclasses) / sizeof(subclasses[0])) {
const subclass_name *p = subclasses[class];
while (p->name && (p->subclass != subclass))
p++;
if (p->name) {
printf(" (%s)", p->name);
} else {
printf(" (unknown subclass 0x%02lx)", data);
printf(" (unknown subclass 0x%02lx)", subclass);
}
} else {
printf(", subclass=0x%02x", subclass);
}
printf (" [no driver assigned]\n");
data = pcibus->pb_read (tag, PCI_INTERRUPT_REG);
pciint = PCI_INTERRUPT_PIN_EXTRACT(data);
if (pciint) {
printf (" int %c irq ", 0x60+pciint);
irq = PCI_INTERRUPT_LINE_EXTRACT(data);
/*
** If it's zero, the isa irq number is unknown,
** and we cannot bind the pci interrupt.
*/
if (irq && (irq != 0xff))
printf ("%d", irq);
else
printf ("??");
};
if (class != (PCI_CLASS_BRIDGE >> 24))
printf (" [no driver assigned]");
printf ("\n");
if (bootverbose) {
for (reg=PCI_MAP_REG_START; reg<PCI_MAP_REG_END; reg+=4) {
data = pcibus->pb_read (tag, reg);
if ((data&~7)==0) continue;
switch (data&7) {
if (class == (PCI_CLASS_BRIDGE >> 24)) {
printf ("configuration space registers:");
for (reg = 0; reg < 0x100; reg+=4) {
if ((reg & 0x0f) == 0) printf ("\n%02x:\t", reg);
printf ("%08x ", pcibus->pb_read (tag, reg));
}
printf ("\n");
} else {
for (reg=PCI_MAP_REG_START; reg<PCI_MAP_REG_END; reg+=4) {
data = pcibus->pb_read (tag, reg);
if ((data&~7)==0) continue;
switch (data&7) {
case 1:
case 5:
printf (" map(%x): io(%lx)\n",
printf ("\tmap(%x): io(%04lx)\n",
reg, data & ~3);
break;
case 0:
printf (" map(%x): mem32(%lx)\n",
printf ("\tmap(%x): mem32(%08lx)\n",
reg, data & ~7);
break;
case 2:
printf (" map(%x): mem20(%lx)\n",
printf ("\tmap(%x): mem20(%05lx)\n",
reg, data & ~7);
break;
case 4:
printf (" map(%x): mem64(%lx)\n",
reg, data & ~7);
printf ("\tmap(%x): mem64(%08x%08lx)\n",
reg, pcibus->pb_read (tag, reg +4), data & ~7);
reg += 4;
break;
}
}
}
}

89
sys/pci/pci.c
View File

@ -1,6 +1,6 @@
/**************************************************************************
**
** $Id: pci.c,v 1.43 1996/01/27 20:14:31 wollman Exp $
** $Id: pci.c,v 1.44 1996/01/30 01:14:29 se Exp $
**
** General subroutines for the PCI bus.
** pci_configure ()
@ -474,6 +474,8 @@ pci_bus_config (void)
real_device:
#ifndef PCI_QUIET
#ifdef PCI_BRIDGE_DEBUG
if (bootverbose) {
printf ("\tconfig header: 0x%08x 0x%08x 0x%08x 0x%08x\n",
pci_conf_read (tag, 0),
@ -481,6 +483,8 @@ pci_bus_config (void)
pci_conf_read (tag, 8),
pci_conf_read (tag, 12));
}
#endif
#endif
if (func == 0 && pci_mfdev (bus_no, device)) {
maxfunc = 7;
@ -1563,7 +1567,7 @@ static struct vt VendorTable[] = {
};
typedef struct {
const char subclass;
const int subclass;
const char *name;
} subclass_name;
@ -1659,9 +1663,13 @@ static const char *const majclasses[] = {
void not_supported (pcici_t tag, u_long type)
{
u_char reg;
u_long reg;
u_long data;
u_char class;
u_char subclass;
struct vt * vp;
int pciint;
int irq;
/*
** lookup the names.
@ -1680,47 +1688,86 @@ void not_supported (pcici_t tag, u_long type)
printf (", device=0x%04lx", type >> 16);
data = (pcibus->pb_read(tag, PCI_CLASS_REG) >> 24) & 0xff;
if (data < sizeof(majclasses) / sizeof(majclasses[0]))
printf(", class=%s", majclasses[data]);
if (data < sizeof(subclasses) / sizeof(subclasses[0])) {
const subclass_name *p = subclasses[data];
data = pcibus->pb_read(tag, PCI_CLASS_REG);
class = (data >> 24) & 0xff;
subclass = (data >> 16) & 0xff;
data = (pcibus->pb_read(tag, PCI_CLASS_REG) >> 16) & 0xff;
while (p->name && (p->subclass != data))
if (class < sizeof(majclasses) / sizeof(majclasses[0])) {
printf(", class=%s", majclasses[class]);
} else {
printf(", class=0x%02x", class);
}
if (subclass < sizeof(subclasses) / sizeof(subclasses[0])) {
const subclass_name *p = subclasses[class];
while (p->name && (p->subclass != subclass))
p++;
if (p->name) {
printf(" (%s)", p->name);
} else {
printf(" (unknown subclass 0x%02lx)", data);
printf(" (unknown subclass 0x%02lx)", subclass);
}
} else {
printf(", subclass=0x%02x", subclass);
}
printf (" [no driver assigned]\n");
data = pcibus->pb_read (tag, PCI_INTERRUPT_REG);
pciint = PCI_INTERRUPT_PIN_EXTRACT(data);
if (pciint) {
printf (" int %c irq ", 0x60+pciint);
irq = PCI_INTERRUPT_LINE_EXTRACT(data);
/*
** If it's zero, the isa irq number is unknown,
** and we cannot bind the pci interrupt.
*/
if (irq && (irq != 0xff))
printf ("%d", irq);
else
printf ("??");
};
if (class != (PCI_CLASS_BRIDGE >> 24))
printf (" [no driver assigned]");
printf ("\n");
if (bootverbose) {
for (reg=PCI_MAP_REG_START; reg<PCI_MAP_REG_END; reg+=4) {
data = pcibus->pb_read (tag, reg);
if ((data&~7)==0) continue;
switch (data&7) {
if (class == (PCI_CLASS_BRIDGE >> 24)) {
printf ("configuration space registers:");
for (reg = 0; reg < 0x100; reg+=4) {
if ((reg & 0x0f) == 0) printf ("\n%02x:\t", reg);
printf ("%08x ", pcibus->pb_read (tag, reg));
}
printf ("\n");
} else {
for (reg=PCI_MAP_REG_START; reg<PCI_MAP_REG_END; reg+=4) {
data = pcibus->pb_read (tag, reg);
if ((data&~7)==0) continue;
switch (data&7) {
case 1:
case 5:
printf (" map(%x): io(%lx)\n",
printf ("\tmap(%x): io(%04lx)\n",
reg, data & ~3);
break;
case 0:
printf (" map(%x): mem32(%lx)\n",
printf ("\tmap(%x): mem32(%08lx)\n",
reg, data & ~7);
break;
case 2:
printf (" map(%x): mem20(%lx)\n",
printf ("\tmap(%x): mem20(%05lx)\n",
reg, data & ~7);
break;
case 4:
printf (" map(%x): mem64(%lx)\n",
reg, data & ~7);
printf ("\tmap(%x): mem64(%08x%08lx)\n",
reg, pcibus->pb_read (tag, reg +4), data & ~7);
reg += 4;
break;
}
}
}
}

45
sys/pci/pcisupport.c
View File

@ -1,6 +1,6 @@
/**************************************************************************
**
** $Id: pcisupport.c,v 1.30 1996/01/27 20:14:32 wollman Exp $
** $Id: pcisupport.c,v 1.31 1996/01/28 22:15:46 wollman Exp $
**
** Device driver for DEC/INTEL PCI chipsets.
**
@ -44,6 +44,7 @@
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/devconf.h>
@ -77,14 +78,39 @@ struct condmsg {
unsigned char port;
unsigned char mask;
unsigned char value;
char flags;
const char *text;
char flags;
const char *text;
};
/* make sure formats expand to at least as many chars !!! */
#define PPB_DESCR "generic PCI bridge (vendor=%04x device=%04x subclass=%1.2d)"
static char*
generic_pci_bridge (pcici_t tag)
{
char *descr;
unsigned classreg = pci_conf_read (tag, PCI_CLASS_REG);
if ((classreg & PCI_CLASS_MASK) == PCI_CLASS_BRIDGE) {
unsigned id = pci_conf_read (tag, PCI_ID_REG);
descr = malloc (sizeof PPB_DESCR +1, M_DEVBUF, M_WAITOK);
if (descr) {
sprintf (descr, PPB_DESCR, id & 0xffff, (id >> 16) & 0xffff,
(classreg >> 16) & 0xff);
}
return descr;
}
return 0;
}
static char*
chipset_probe (pcici_t tag, pcidi_t type)
{
unsigned rev;
char *descr;
switch (type) {
case 0x04868086:
@ -115,11 +141,16 @@ chipset_probe (pcici_t tag, pcidi_t type)
return ("SiS 85c503");
case 0x06011039:
return ("SiS 85c601");
case 0x00221014:
return ("IBM 82351 PCI-PCI bridge");
case 0x00011011:
return ("DEC 21050 PCI-PCI bridge");
};
return ((char*)0);
if (descr = generic_pci_bridge(tag))
return descr;
return NULL;
}
#ifndef PCI_QUIET
@ -587,6 +618,12 @@ chipset_attach (pcici_t config_id, int unit)
case 0x122e8086:
writeconfig (config_id, conf82371fb);
break;
#if 0
case 0x00011011: /* DEC 21050 */
case 0x00221014: /* IBM xxx */
writeconfig (config_id, conf_pci2pci);
break;
#endif
#if 0
case 0x12308086:
writeconfig (config_id, conf82371fb2);