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    SubjectRe: PATCH 2.4.0 parisc PCI support
    Just tested your patch on an x86 laptop with two CardBus controllers
    (kernel's CardBus bridge code == kernel's PCI-PCI bridge code, for the
    most part) and an SMP x86 desktop machine.

    The patch worked 100% on my laptop, but failed to allocate a PCI memory
    region on my desktop machine. Two attachments... "diff -u" output for
    dmesg before and after your patch, and "diff -u" output for lspci before
    and after your patch.

    --
    Jeff Garzik | "You see, in this world there's two kinds of
    Building 1024 | people, my friend: Those with loaded guns
    MandrakeSoft | and those who dig. You dig." --Blondie--- rum-dmesg-before.txt Fri Mar 2 17:42:33 2001
    +++ rum-dmesg-after.txt Fri Mar 2 17:07:17 2001
    @@ -1,4 +1,4 @@
    -Linux version 2.4.2 (jgarzik@rum.normnet.org) (gcc version 2.96 20000731 (Linux-Mandrake 8.0)) #5 SMP Fri Mar 2 17:37:39 EST 2001
    +Linux version 2.4.2 (jgarzik@rum.normnet.org) (gcc version 2.96 20000731 (Linux-Mandrake 8.0)) #2 SMP Fri Mar 2 16:52:53 EST 2001
    BIOS-provided physical RAM map:
    BIOS-e820: 000000000009fc00 @ 0000000000000000 (usable)
    BIOS-e820: 0000000000000400 @ 000000000009fc00 (reserved)
    @@ -29,7 +29,7 @@
    ide_setup: ide0=autotune
    ide_setup: ide1=autotune
    Initializing CPU#0
    -Detected 400.918 MHz processor.
    +Detected 400.915 MHz processor.
    Console: colour VGA+ 80x25
    Calibrating delay loop... 799.53 BogoMIPS
    Memory: 126276k/131060k available (1209k kernel code, 4396k reserved, 434k data, 192k init, 0k highmem)
    @@ -138,19 +138,19 @@
    IRQ19 -> 19
    .................................... done.
    calibrating APIC timer ...
    -..... CPU clock speed is 400.9022 MHz.
    -..... host bus clock speed is 100.2254 MHz.
    -cpu: 0, clocks: 1002254, slice: 334084
    -CPU0<T0:1002240,T1:668144,D:12,S:334084,C:1002254>
    -cpu: 1, clocks: 1002254, slice: 334084
    -CPU1<T0:1002240,T1:334064,D:8,S:334084,C:1002254>
    +..... CPU clock speed is 400.9365 MHz.
    +..... host bus clock speed is 100.2340 MHz.
    +cpu: 0, clocks: 1002340, slice: 334113
    +CPU0<T0:1002336,T1:668208,D:15,S:334113,C:1002340>
    +cpu: 1, clocks: 1002340, slice: 334113
    +CPU1<T0:1002336,T1:334096,D:14,S:334113,C:1002340>
    checking TSC synchronization across CPUs: passed.
    PCI: Using configuration type 1
    PCI: Probing PCI hardware
    PCI: IDE base address fixup for 00:04.1
    PCI: Scanning for ghost devices on bus 0
    PCI: Scanning for ghost devices on bus 1
    -Unknown bridge resource 0: assuming transparent
    +PCI : ignoring 00:01.0 PCI-PCI bridge (I/O BASE not configured)
    PCI: IRQ init
    PCI: Interrupt Routing Table found at 0xc00f0d20
    00:0c slot=01 0:60/1eb8 1:61/1eb8 2:62/1eb8 3:63/1eb8
    @@ -179,6 +179,8 @@
    PCI: Resource ce800000-ce800fff (f=200, d=0, p=0)
    PCI: Resource 0000b400-0000b47f (f=101, d=0, p=0)
    PCI: Resource d0000000-d7ffffff (f=200, d=0, p=0)
    +PCI: Cannot allocate resource region 0 of device 01:00.0
    +PCI: Failed to allocate resource 0 for 01:00.0
    Limiting direct PCI/PCI transfers.
    Linux NET4.0 for Linux 2.4
    Based upon Swansea University Computer Society NET3.039
    @@ -186,7 +188,7 @@
    IA-32 Microcode Update Driver: v1.08 <tigran@veritas.com>
    Starting kswapd v1.8
    pty: 256 Unix98 ptys configured
    -block: queued sectors max/low 83802kB/27934kB, 256 slots per queue
    +block: queued sectors max/low 83794kB/27931kB, 256 slots per queue
    RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
    Uniform Multi-Platform E-IDE driver Revision: 6.31
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx--- rum-lspci-before.txt Fri Mar 2 17:42:23 2001
    +++ rum-lspci-after.txt Fri Mar 2 17:07:26 2001
    @@ -88,7 +88,7 @@
    Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
    Latency: 64 (1250ns min, 63750ns max), cache line size 08
    Interrupt: pin A routed to IRQ 16
    - Region 0: Memory at d0000000 (32-bit, non-prefetchable) [size=128M]
    + Region 0: Memory at <ignored> (32-bit, non-prefetchable) [size=128M]
    Expansion ROM at e5ff0000 [disabled] [size=64K]
    Capabilities: [dc] Power Management version 1
    Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
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