Date: Mon, 05 Oct 2009 13:47:50 +0000 From: Tom Judge <tom@tomjudge.com> To: Olivier Houchard <mlfbsd@ci0.org> Cc: freebsd-hackers@freebsd.org Subject: Re: Help debugging: Fatal kernel mode data abort: 'External Linefetch Abort (P)' Message-ID: <4AC9F906.3040306@tomjudge.com> In-Reply-To: <20091004223433.GA73189@ci0.org> References: <4AC106AA.9000305@tomjudge.com> <20090928202132.GA15236@ci0.org> <4AC16B5A.8090407@tomjudge.com> <20090929093825.GA26424@ci0.org> <4AC21F44.6060004@tomjudge.com> <20091004223433.GA73189@ci0.org>
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Olivier Houchard wrote:
>> Hi Olivier,
>>
>> I have tried the patch and here are the boot results:
>>
>> <SNIP>
>>
>
> I fail to see how it happens.
> Could you printf the value of sc->sc_mem once set in i80321_pci_attach(),
> and if it appears to be 0, the value of i80321_softc->sc_owin[0].owin_xlate_lo
> at the different points it can be set ?
>
> Thanks a lot,
>
> Olivier
>
Hi Olivier,
I have been working though this with Mark Tinguely and we came up with
this patch that makes it work. Not sure on its correctness but it works.
Tom
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filename="pci-1.patch"
Index: i80321_pci.c
===================================================================
--- i80321_pci.c (revision 197735)
+++ i80321_pci.c (working copy)
@@ -92,8 +92,7 @@
sc->sc_busno = busno;
sc->sc_pciio = &i80321_softc->sc_pci_iot;
sc->sc_pcimem = &i80321_softc->sc_pci_memt;
- sc->sc_mem = i80321_softc->sc_owin[0].owin_xlate_lo +
- VERDE_OUT_XLATE_MEM_WIN_SIZE;
+ sc->sc_mem = i80321_softc->sc_owin[0].owin_xlate_lo;
sc->sc_io = i80321_softc->sc_iow_vaddr;
/* Initialize memory and i/o rmans. */
@@ -110,7 +109,8 @@
sc->sc_mem_rman.rm_descr = "I80321 PCI Memory";
if (rman_init(&sc->sc_mem_rman) != 0 ||
rman_manage_region(&sc->sc_mem_rman,
- 0, VERDE_OUT_XLATE_MEM_WIN_SIZE) != 0) {
+ VERDE_OUT_XLATE_MEM_WIN0_BASE,
+ VERDE_OUT_XLATE_MEM_WIN0_BASE + VERDE_OUT_XLATE_MEM_WIN_SIZE) != 0) {
panic("i80321_pci_probe: failed to set up memory rman");
}
sc->sc_irq_rman.rm_type = RMAN_ARRAY;
@@ -297,6 +297,9 @@
sc->sc_mem;
start &= (0x1000000 - 1);
end &= (0x1000000 - 1);
+ start += 0x80000000;
+ end += 0x80000000;
+ device_printf(child, "SYS_RES_MEMORY: start: 0x%08lX end: 0x%08lX\n",start,end);
break;
case SYS_RES_IOPORT:
rm = &sc->sc_io_rman;
@@ -312,12 +315,15 @@
}
rv = rman_reserve_resource(rm, start, end, count, flags, child);
+ device_printf(child, "RMAN_RESERVE_RESOURCE: start: 0x%08lX end: 0x%08lX\n",
+ rman_get_start(rv),
+ rman_get_end(rv));
if (rv == NULL)
return (NULL);
rman_set_rid(rv, *rid);
if (type != SYS_RES_IRQ) {
if (type == SYS_RES_MEMORY)
- bh += (rman_get_start(rv));
+ bh = (rman_get_start(rv));
rman_set_bustag(rv, bt);
rman_set_bushandle(rv, bh);
if (flags & RF_ACTIVE) {
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