From: ashish anand <ashisha@india.infogain.com>
To: Amelia De Vivo <amelia.devivo@roma.quadrics.com>,
linuxppc-dev@lists.linuxppc.org
Subject: Re: Addressing PCI memory
Date: Wed, 16 May 2001 22:10:17 +0530 [thread overview]
Message-ID: <3B02AD71.804119E3@india.infogain.com> (raw)
In-Reply-To: 002f01c0dd5c$f64942e0$7a00000a@roma.quadrics.com
Amelia De Vivo wrote:
>
> Hi all, I'm trying to write a driver for a 64 bit PCI device. Something like
> this works well under i386 Linux, but it doesn't work at all for Linux
> 2.2.15 by Yellow Dog:
>
> struct pci_dev *dev = NULL;
> dev = pci_find_device(vendor, device, dev);
> pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &cards[0].addr0);
> cards[0].vaddr = (void *) ioremap((cards[0].addr0 &
> PCI_BASE_ADDRESS_MEM_MASK), cards[0].size);
> writeb('A',(cards[0].vaddr)+0x1000);
READ PCI STATUS REGISTER TO CHECK FOR ANY MASTER/TARGET ABORT.
LASTLY WHAT IS THE VALUE OF cards[0].size ?
> I have a kernel panic on writeb. Has someone some suggestion?
LET ME KNOW THE PANIC MESSAGE....
> Thanks in advance
>
> Amelia
>
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
prev parent reply other threads:[~2001-05-16 16:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-15 16:34 Addressing PCI memory Amelia De Vivo
2001-05-15 16:58 ` Takashi Oe
2001-05-15 17:02 ` Gabriel Paubert
2001-05-15 18:16 ` Jeff Garzik
2001-05-16 16:40 ` ashish anand [this message]
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