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Message-ID: <463bccef1003140331h72b1f11qe133a6a1c952fc6d@mail.gmail.com>
Date: Sun, 14 Mar 2010 11:31:38 +0100
From: Giampaolo Bellini <iw2lsi@...il.com>
To: linux-kernel@...r.kernel.org
Subject: PCI conflicts with latest kernels
Hi all...
I'm experimenting PCI address space collisions on an ICOP PC104
VDX-6357 motherboard (with no cards/expansion at all) and kernels
2.6.33/34
collisions where not there with kernel 2.6.29 (I start with this
.config and I've done a make oldconfig for 2.6.33/34).
I have no ACPI support and I'm using the sisfb framebuffer on a XGI
Technology Inc. (eXtreme Graphics Innovation) Volari Z7 chipset.
thanks for any ideas
Paolo
here are some info:
-------------------------------------------------------------------
cat /proc/cmdline
-------------------------------------------------------------------
root=/dev/sda2 quiet video=sisfb:640x480-32 ar8.debug=1
ar8.outputs=0x80 BOOT_IMAGE=vmlinuz-2.6.33-r3-vdx
-------------------------------------------------------------------
dmesg kernel 2.6.33:
-------------------------------------------------------------------
Linux version 2.6.33-ibty3-vdx (root@...ble) (gcc version 4.2.4
(Ubuntu 4.2.4-1ubuntu3)) #22 Sun Mar 14 00:35:18 CET 2010
CPU: vendor_id 'Vortex86 SoC' unknown, using generic init.
CPU: Your system may be unstable.
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 0000000020000000 (usable)
BIOS-e820: 00000000ff000000 - 0000000100000000 (reserved)
Notice: NX (Execute Disable) protection missing in CPU or disabled in BIOS!
DMI not present or invalid.
last_pfn = 0x20000 max_arch_pfn = 0x100000
initial memory mapped : 0 - 01800000
init_memory_mapping: 0000000000000000-0000000020000000
0000000000 - 0020000000 page 4k
kernel direct mapping tables up to 20000000 @ 7000-8a000
512MB LOWMEM available.
mapped low ram: 0 - 20000000
low ram: 0 - 20000000
node 0 low ram: 00000000 - 20000000
node 0 bootmap 00001000 - 00005000
(6 early reservations) ==> bootmem [0000000000 - 0020000000]
#0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000]
#1 [0001000000 - 00012f6154] TEXT DATA BSS ==> [0001000000 - 00012f6154]
#2 [000009fc00 - 0000100000] BIOS reserved ==> [000009fc00 - 0000100000]
#3 [00012f7000 - 00012fd000] BRK ==> [00012f7000 - 00012fd000]
#4 [0000007000 - 0000081000] PGTABLE ==> [0000007000 - 0000081000]
#5 [0000001000 - 0000005000] BOOTMAP ==> [0000001000 - 0000005000]
Zone PFN ranges:
DMA 0x00000000 -> 0x00001000
Normal 0x00001000 -> 0x00020000
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
0: 0x00000000 -> 0x0000009f
0: 0x00000100 -> 0x00020000
On node 0 totalpages: 130975
free_area_init_node: node 0, pgdat c12a2004, node_mem_map c12fd000
DMA zone: 32 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 3967 pages, LIFO batch:0
Normal zone: 992 pages used for memmap
Normal zone: 125984 pages, LIFO batch:31
Allocating PCI resources starting at 20000000 (gap: 20000000:df000000)
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129951
Kernel command line: root=/dev/sda2 quiet video=sisfb:640x480-32
ar8.debug=1 ar8.outputs=0x80 BOOT_IMAGE=vmlinuz-2.6.33-r3-vdx
PID hash table entries: 2048 (order: 1, 8192 bytes)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Initializing CPU#0
Memory: 515600k/524288k available (1844k kernel code, 8044k reserved,
863k data, 212k init, 0k highmem)
virtual kernel memory layout:
fixmap : 0xfffe5000 - 0xfffff000 ( 104 kB)
vmalloc : 0xe0800000 - 0xfffe3000 ( 503 MB)
lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
.init : 0xc12a5000 - 0xc12da000 ( 212 kB)
.data : 0xc11cd056 - 0xc12a4ed8 ( 863 kB)
.text : 0xc1000000 - 0xc11cd056 (1844 kB)
Checking if this processor honours the WP bit even in supervisor mode...Ok.
Hierarchical RCU implementation.
NR_IRQS:16
Console: colour VGA+ 80x25
console [tty0] enabled
Fast TSC calibration using PIT
Detected 800.001 MHz processor.
Calibrating delay loop (skipped), value calculated using timer
frequency.. 1600.00 BogoMIPS (lpj=3200004)
Mount-cache hash table entries: 512
Performance Events:
CPU: Vortex86 SoC 05/02 stepping 02
Checking 'hlt' instruction... OK.
NET: Registered protocol family 16
PCI: PCI BIOS revision 3.00 entry at 0xf0031, last bus=0
PCI: Using configuration type 1 for base access
bio: create slab <bio-0> at 0
vgaarb: loaded
SCSI subsystem initialized
libata version 3.00 loaded.
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
pci 0000:00:01.0: reg 10: [io 0xdc00-0xdcff]
pci 0000:00:01.0: reg 14: [mem 0xfefbb000-0xfefbb0ff]
pci 0000:00:01.0: supports D1 D2
pci 0000:00:01.0: PME# supported from D1 D2 D3hot D3cold
pci 0000:00:01.0: PME# disabled
pci 0000:00:02.0: reg 10: [io 0xdd00-0xddff]
pci 0000:00:02.0: reg 14: [mem 0xfefbb400-0xfefbb4ff]
pci 0000:00:02.0: supports D1 D2
pci 0000:00:02.0: PME# supported from D1 D2 D3hot D3cold
pci 0000:00:02.0: PME# disabled
pci 0000:00:03.0: reg 10: [mem 0xf8000000-0xfbffffff pref]
pci 0000:00:03.0: reg 14: [mem 0xfefc0000-0xfeffffff]
pci 0000:00:03.0: reg 18: [io 0xdf80-0xdfff]
pci 0000:00:03.0: supports D1 D2
pci 0000:00:08.0: reg 10: [io 0xde00-0xdeff]
pci 0000:00:08.0: reg 14: [mem 0xfefbb800-0xfefbb8ff]
pci 0000:00:08.0: reg 30: [mem 0xfefa0000-0xfefaffff pref]
pci 0000:00:0b.0: reg 10: [mem 0x000e0000-0x000e0fff]
pci 0000:00:0b.1: reg 10: [mem 0x000e1000-0x000e10ff]
pci 0000:00:0c.0: reg 10: [io 0x01f0-0x01f7]
pci 0000:00:0c.0: reg 14: [io 0x03f4-0x03f7]
pci 0000:00:0c.0: reg 18: [io 0x0170-0x0177]
pci 0000:00:0c.0: reg 1c: [io 0x0374-0x0377]
pci 0000:00:0c.0: reg 20: [io 0xfff0-0xffff]
pci 0000:00:0c.0: reg 30: [mem 0x00000000-0x0001ffff pref]
vgaarb: device added: PCI:0000:00:03.0,decodes=io+mem,owns=io+mem,locks=none
pci 0000:00:07.0: default IRQ router [17f3:6031]
PCI: pci_cache_line_size set to 32 bytes
pci 0000:00:0b.0: address space collision: [mem 0x000e0000-0x000e0fff]
already in use
pci 0000:00:0b.0: can't reserve [mem 0x000e0000-0x000e0fff]
pci 0000:00:0b.1: address space collision: [mem 0x000e1000-0x000e10ff]
already in use
pci 0000:00:0b.1: can't reserve [mem 0x000e1000-0x000e10ff]
Switching to clocksource tsc
pci 0000:00:0c.0: BAR 6: assigned [mem 0x20000000-0x2001ffff pref]
pci 0000:00:0b.0: BAR 0: assigned [mem 0x20020000-0x20020fff]
pci 0000:00:0b.0: BAR 0: set to [mem 0x20020000-0x20020fff] (PCI
address [0x20020000-0x20020fff]
pci 0000:00:0b.1: BAR 0: assigned [mem 0x20021000-0x200210ff]
pci 0000:00:0b.1: BAR 0: set to [mem 0x20021000-0x200210ff] (PCI
address [0x20021000-0x200210ff]
pci_bus 0000:00: resource 0 [io 0x0000-0xffff]
pci_bus 0000:00: resource 1 [mem 0x00000000-0xffffffff]
...
-------------------------------------------------------------------
-------------------------------------------------------------------
lspci
-------------------------------------------------------------------
00:00.0 Host bridge: RDC Semiconductor, Inc. Unknown device 6021 (rev 01)
Control: I/O- Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 0
00:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RT8139
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 128 (8000ns min, 16000ns max)
Interrupt: pin A routed to IRQ 9
Region 0: I/O ports at dc00 [size=256]
Region 1: Memory at fefbb000 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0-,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:02.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RT8139
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 128 (8000ns min, 16000ns max)
Interrupt: pin A routed to IRQ 6
Region 0: I/O ports at dd00 [size=256]
Region 1: Memory at fefbb400 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0-,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:03.0 VGA compatible controller: XGI Technology Inc. (eXtreme
Graphics Innovation) Volari Z7 (prog-if 00 [VGA controller])
Subsystem: XGI Technology Inc. (eXtreme Graphics Innovation) Volari Z7
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
BIST result: 00
Region 0: Memory at f8000000 (32-bit, prefetchable) [size=64M]
Region 1: Memory at fefc0000 (32-bit, non-prefetchable) [size=256K]
Region 2: I/O ports at df80 [size=128]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:07.0 ISA bridge: RDC Semiconductor, Inc. Unknown device 6031 (rev 01)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=?? >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
00:08.0 Ethernet controller: RDC Semiconductor, Inc. R6040 MAC Controller
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 128 (750ns min, 2000ns max)
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at de00 [size=256]
Region 1: Memory at fefbb800 (32-bit, non-prefetchable) [size=256]
Expansion ROM at fefa0000 [disabled] [size=64K]
00:0b.0 USB Controller: RDC Semiconductor, Inc. R6060 USB 1.1
Controller (rev 11) (prog-if 10 [OHCI])
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 128, Cache Line Size: 16 bytes
Interrupt: pin A routed to IRQ 15
Region 0: Memory at 20020000 (32-bit, non-prefetchable) [size=4K]
00:0b.1 USB Controller: RDC Semiconductor, Inc. R6061 USB 2.0
Controller (rev 02) (prog-if 20 [EHCI])
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 128, Cache Line Size: 16 bytes
Interrupt: pin B routed to IRQ 9
Region 0: Memory at 20021000 (32-bit, non-prefetchable) [size=256]
00:0c.0 Mass storage controller: RDC Semiconductor, Inc. Unknown
device 1010 (rev 13)
Subsystem: RDC Semiconductor, Inc. Unknown device 1010
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (2000ns min, 2000ns max)
Interrupt: pin A routed to IRQ 14
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4 [size=4]
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374 [size=4]
Region 4: I/O ports at fff0 [size=16]
[virtual] Expansion ROM at 20000000 [disabled] [size=128K]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
-------------------------------------------------------------------
-------------------------------------------------------------------
/proc/cpuinfo
-------------------------------------------------------------------
processor : 0
vendor_id : Vortex86 SoC
cpu family : 5
model : 2
model name : 05/02
stepping : 2
cpu MHz : 800.001
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu tsc cx8
bogomips : 1600.00
clflush size : 32
cache_alignment : 32
address sizes : 32 bits physical, 32 bits virtual
power management:
-------------------------------------------------------------------
dmesg kernel 2.6.29:
-------------------------------------------------------------------
...
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
pci 0000:00:01.0: reg 10 io port: [0xdc00-0xdcff]
pci 0000:00:01.0: reg 14 32bit mmio: [0xfefbb000-0xfefbb0ff]
pci 0000:00:01.0: supports D1 D2
pci 0000:00:01.0: PME# supported from D1 D2 D3hot D3cold
pci 0000:00:01.0: PME# disabled
pci 0000:00:02.0: reg 10 io port: [0xdd00-0xddff]
pci 0000:00:02.0: reg 14 32bit mmio: [0xfefbb400-0xfefbb4ff]
pci 0000:00:02.0: supports D1 D2
pci 0000:00:02.0: PME# supported from D1 D2 D3hot D3cold
pci 0000:00:02.0: PME# disabled
pci 0000:00:03.0: reg 10 32bit mmio: [0xf8000000-0xfbffffff]
pci 0000:00:03.0: reg 14 32bit mmio: [0xfefc0000-0xfeffffff]
pci 0000:00:03.0: reg 18 io port: [0xdf80-0xdfff]
pci 0000:00:03.0: supports D1 D2
pci 0000:00:08.0: reg 10 io port: [0xde00-0xdeff]
pci 0000:00:08.0: reg 14 32bit mmio: [0xfefbb800-0xfefbb8ff]
pci 0000:00:08.0: reg 30 32bit mmio: [0xfefa0000-0xfefaffff]
pci 0000:00:0b.0: reg 10 32bit mmio: [0x0e0000-0x0e0fff]
pci 0000:00:0b.1: reg 10 32bit mmio: [0x0e1000-0x0e10ff]
pci 0000:00:0c.0: reg 10 io port: [0x1f0-0x1f7]
pci 0000:00:0c.0: reg 14 io port: [0x3f4-0x3f7]
pci 0000:00:0c.0: reg 18 io port: [0x170-0x177]
pci 0000:00:0c.0: reg 1c io port: [0x374-0x377]
pci 0000:00:0c.0: reg 20 io port: [0xfff0-0xffff]
pci 0000:00:0c.0: reg 30 32bit mmio: [0x000000-0x01ffff]
pci 0000:00:07.0: default IRQ router [17f3:6031]
pci 0000:00:0b.0: BAR 0: can't allocate resource
pci 0000:00:0b.1: BAR 0: can't allocate resource
...
-------------------------------------------------------------------
--
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