Date: Thu, 13 Feb 2003 12:57:33 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: <fred@clift.org> Cc: <freebsd-alpha@FreeBSD.ORG> Subject: Re: problem with pcmcia isa adaptor on alpha Message-ID: <15947.56461.751618.786701@grasshopper.cs.duke.edu> In-Reply-To: <20030213093531.K26346-100000@vespa.dmz.orem.verio.net> References: <3E498737.22D2187A@mindspring.com> <20030213093531.K26346-100000@vespa.dmz.orem.verio.net>
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fred@clift.org writes:
>
> My problem is that I can't really find where pccard_kmem is set -- I do
> see in the ioctl interface if you call the PIOCRWMEM ioctl that this value
> can be set, but otherwise, it appears to be uninitialized.
>
> Can anyone tell me where this is being initialized? or what else might be
> wrong with the uiomove?
<..>
pccard_kmem = rman_get_virtual(pccard_mem_res);
However, this will be garbage on alpha, since its bus_alloc_resource()
does not specify what kind of mapping it wants, which is required
to get a valid virtual address from device mem on alpha.
So try |'ing in PCI_RF_DENSE:
Index: pccard.c
===================================================================
RCS file: /home/ncvs/src/sys/pccard/pccard.c,v
retrieving revision 1.106.2.14
diff -u -r1.106.2.14 pccard.c
--- pccard.c 22 Sep 2002 20:26:58 -0000 1.106.2.14
+++ pccard.c 13 Feb 2003 17:55:56 -0000
@@ -579,7 +579,7 @@
pccard_mem_rid, pccard_mem_res);
pccard_mem_res = bus_alloc_resource(pccarddev, SYS_RES_MEMORY,
&pccard_mem_rid, addr, addr, PCCARD_MEMSIZE,
- RF_ACTIVE | rman_make_alignment_flags(PCCARD_MEMSIZE));
+ PCI_RF_DENSE | RF_ACTIVE | rman_make_alignment_flags(PCCARD_MEMSIZE));
if (pccard_mem_res == NULL)
return (EINVAL);
pccard_mem = rman_get_start(pccard_mem_res);
> thing to even put time and effor in to :). It was suggested to me
> recently that the if_dc driver could use busDMA-ing and perhaps I should
yes!
> be wasting my time there instead. Either way, I barely know what I'm
> doing :).
Everybody has to start somewhere.
Drew
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