Date: Tue, 13 Feb 1996 21:22:33 -0800 From: "Justin T. Gibbs" <gibbs@freefall.freebsd.org> To: Richard J Kuhns <rjk@sparcmill.grauel.com> Cc: freebsd-stable@freebsd.org Subject: Re: One problem && one question Message-ID: <199602140522.VAA08632@freefall.freebsd.org> In-Reply-To: Your message of "Tue, 13 Feb 1996 14:27:19 %2B0500." <9602131927.AA23929@sparcmill.grauel.com>
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>Justin T. Gibbs writes:
> > >Justin T. Gibbs writes:
> > ><Buslogic id info> int a irq 10 pci 0:13
> > > mapreg[10] type 1 addr 0x00006000 size ffff0004
> > >bt0: Invalid base address
> >
> > boot -v with the old kernel and then use dmesg to retrieve the info.
> >
>
>That works fine for any ``working'' kernel; apparently none of the boot
>messages from a non-working kernel end up in the circular buffer dmesg
>uses. IE, if I boot-working then boot-nonworking then boot-working and run
>dmesg, I get the messages from the 2 boot-working kernels only.
How would you expect the dmesg buffer to be written to disk if the
probe for your disk controller isn't successful? 8-)
> > When you get a chance, try this one. Now that I'm not editing over a link
> > with 50% packet loss, its much easier to check my work. :)
> >
>
>I tried it; I'm afraid it made no difference. By the way, here's one more
>line from the (failing) pci-probe:
>
>bt0: uses 4 bytes of I/O space from 6000 upto 6003
Ahh. It did make a difference. Unfortunately, when I was cleaning
up the bt driver, I assumed that the PCI probe would always return
one of the ISA compatibility addresses. As Rod pointed out, this is
not always the case. This patch should do the trick
>--
>Rich Kuhns rjk@grauel.com
>PO Box 6249
>100 Sawmill Road
>Lafayette, IN 47903
>(317)477-6000 x319
--
Justin T. Gibbs
===========================================
FreeBSD: Turning PCs into workstations
===========================================
Index: i386/scsi/bt.c
===================================================================
RCS file: /usr/cvs/src/sys/i386/scsi/bt.c,v
retrieving revision 1.5
diff -c -r1.5 bt.c
*** bt.c 1996/01/25 23:03:07 1.5
--- bt.c 1996/02/14 05:03:01
***************
*** 462,471 ****
}
}
}
- if (i >= sizeof(found)/sizeof(struct bt_found)) {
- printf("bt%d: Invalid base address\n", unit);
- return NULL;
- }
bt = malloc(sizeof(struct bt_data), M_DEVBUF, M_NOWAIT);
if (!bt) {
--- 462,467 ----
Index: i386/pci/bt9xx.c
===================================================================
RCS file: /usr/cvs/src/sys/pci/bt9xx.c,v
retrieving revision 1.4
diff -c -r1.4 bt9xx.c
*** bt9xx.c 1996/01/23 21:46:57 1.4
--- bt9xx.c 1996/02/13 15:46:23
***************
*** 35,42 ****
#include <i386/scsi/btreg.h>
/* XXX Need more device IDs */
! #define PCI_BASEADR0 PCI_MAP_REG_START
! #define PCI_DEVICE_ID_BUSLOGIC_946 0x104B1040ul
static char* bt_pci_probe __P((pcici_t tag, pcidi_t type));
static void bt_pci_attach __P((pcici_t config_id, int unit));
--- 35,41 ----
#include <i386/scsi/btreg.h>
/* XXX Need more device IDs */
! #define PCI_DEVICE_ID_BUSLOGIC_946 0x1040104Bul
static char* bt_pci_probe __P((pcici_t tag, pcidi_t type));
static void bt_pci_attach __P((pcici_t config_id, int unit));
***************
*** 70,86 ****
pcici_t config_id;
int unit;
{
u_long io_port;
unsigned opri = 0;
struct bt_data *bt;
! if(!(io_port = pci_conf_read(config_id, PCI_BASEADR0)))
return;
- /*
- * The first bit of PCI_BASEADR0 is always
- * set hence we mask it off.
- */
- io_port &= 0xfffffffe;
if(!(bt = bt_alloc(unit, io_port)))
return; /* XXX PCI code should take return status */
--- 69,89 ----
pcici_t config_id;
int unit;
{
+ u_char reg;
u_long io_port;
unsigned opri = 0;
struct bt_data *bt;
! for(reg = PCI_MAP_REG_START; reg < PCI_MAP_REG_END; reg+=4) {
! io_port = pci_conf_read(config_id, reg);
! if ((io_port&~7)==0) continue;
! if(io_port & PCI_MAP_IO) {
! io_port &= ~PCI_MAP_IO;
! break;
! }
! }
! if(reg == PCI_MAP_REG_END)
return;
if(!(bt = bt_alloc(unit, io_port)))
return; /* XXX PCI code should take return status */
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