Re: Alpha SCSI error on 2.4.0-test11

From: Phillip Ezolt (ezolt@perf.zko.dec.com)
Date: Wed Dec 06 2000 - 09:51:07 EST


Jay,
        You're a genius. That works like a charm.

Thanks so much!

--Phil

Compaq: High Performance Server Division/Benchmark Performance Engineering
---------------- Alpha, The Fastest Processor on Earth --------------------
Phillip.Ezolt@compaq.com |C|O|M|P|A|Q| ezolt@perf.zko.dec.com
------------------- See the results at www.spec.org -----------------------

On Tue, 5 Dec 2000, Jay Estabrook wrote:

> On Mon, Dec 04, 2000 at 01:53:42PM -0500, Phillip Ezolt wrote:
> >
> > I've recompiled as you have suggested. Any ideas?
>
> Compile again with the following patches (these are against 2.4.0-test12,
> but those in arch/alpha/kernel/core_cia.c should work against test10/11
> as well).
>
> Something got lost between 2.2 and 2.4, but it's most likely that
> MIATA (because it has 6 DIMM slots) is one of the few CIA and PYXIS
> machines that could actually get over 1GB of memory; that's why we
> haven't seen this before...
>
> --Jay++
>
> -----------------------------------------------------------------------------
> Jay A Estabrook Alpha Engineering - LINUX Project
> Compaq Computer Corp. - MRO1-2/K20 (508) 467-2080
> 200 Forest Street, Marlboro MA 01752 Jay.Estabrook@compaq.com
> -----------------------------------------------------------------------------
>
> diff -urN old/arch/alpha/kernel/core_cia.c new/arch/alpha/kernel/core_cia.c
> --- old/arch/alpha/kernel/core_cia.c Tue Dec 5 10:09:01 2000
> +++ new/arch/alpha/kernel/core_cia.c Tue Dec 5 18:45:12 2000
> @@ -700,11 +700,11 @@
>
> *(vip)CIA_IOC_PCI_W1_BASE = 0x40000000 | 1;
> *(vip)CIA_IOC_PCI_W1_MASK = (0x40000000 - 1) & 0xfff00000;
> - *(vip)CIA_IOC_PCI_T1_BASE = 0;
> + *(vip)CIA_IOC_PCI_T1_BASE = 0 >> 2;
>
> *(vip)CIA_IOC_PCI_W2_BASE = 0x80000000 | 1;
> *(vip)CIA_IOC_PCI_W2_MASK = (0x40000000 - 1) & 0xfff00000;
> - *(vip)CIA_IOC_PCI_T2_BASE = 0x40000000;
> + *(vip)CIA_IOC_PCI_T2_BASE = 0x40000000 >> 2;
>
> *(vip)CIA_IOC_PCI_W3_BASE = 0;
> }
> diff -urN old/arch/alpha/kernel/pci.c new/arch/alpha/kernel/pci.c
> --- old/arch/alpha/kernel/pci.c Tue Dec 5 10:09:01 2000
> +++ new/arch/alpha/kernel/pci.c Tue Dec 5 10:20:01 2000
> @@ -91,9 +91,15 @@
> if (dev->class >> 8 != PCI_CLASS_STORAGE_IDE)
> return;
> dev->resource[1].start |= 2;
> - dev->resource[1].end = dev->resource[1].start;
> + dev->resource[1].end = dev->resource[1].start + 1;
> +#ifndef CONFIG_BLK_DEV_IDEPCI
> + /* already claimed by "standard" (ie junk) resources */
> + dev->resource[0].flags &= ~IORESOURCE_IO;
> + dev->resource[1].flags &= ~IORESOURCE_IO;
> +#else
> pci_claim_resource(dev, 0);
> pci_claim_resource(dev, 1);
> +#endif
> }
>
> static void __init
> diff -urN old/drivers/pci/pci.c new/drivers/pci/pci.c
> --- old/drivers/pci/pci.c Tue Dec 5 10:09:02 2000
> +++ new/drivers/pci/pci.c Tue Dec 5 10:17:32 2000
> @@ -540,7 +540,7 @@
> static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
> {
> unsigned int pos, reg, next;
> - u32 l, sz;
> + u32 l, sz, tmp;
> struct resource *res;
>
> for(pos=0; pos<howmany; pos = next) {
> -----------------------------------------------------------------------------
>

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