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Date: Tue, 5 Dec 2000 19:06:53 -0500
From: Jay Estabrook <Jay.Estabrook@compaq.com>
To: Phillip Ezolt <ezolt@perf.zko.dec.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Andrea Arcangeli <andrea@suse.de>, rth@twiddle.net,
        linux-kernel@vger.kernel.org, wcarr@perf.zko.dec.com
Subject: Re: Alpha SCSI error on 2.4.0-test11
Message-ID: <20001205190653.A1031@linux04.mro.cpqcorp.net>
In-Reply-To: <20001202011104.A2089@jurassic.park.msu.ru> <Pine.OSF.3.96.1001204134014.11945C-100000@perf.zko.dec.com>
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In-Reply-To: <Pine.OSF.3.96.1001204134014.11945C-100000@perf.zko.dec.com>; from ezolt@perf.zko.dec.com on Mon, Dec 04, 2000 at 01:53:42PM -0500
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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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