LKML: Rob van Nieuwkerk: Re: Cyrix IRQ routing is wrong?

Hi,

Linus wrote:
> I don't have any good "dump_pirq" dumps from Cyrix chips, so it's hard
> to get better guesses. People with Cyrix routers should probably send me
> (and cc Jeff Garzik) the output from dump_pirq _and_ the output from
> "lspci -vxxx ; cat /proc/interrupts" (the latter so that the actual
> mappings and the router entries are visible).

I just fell in the middle of this thread and don't exactly know what it's
all about. but I do have a Geode base board available. So here is my
info. Please contact me if you want to know more !

Greetings,
Rob van Nieuwkerk

PS: anyone else seeing screen corruption in console/text mode with these
boards ? (some chracters from before a screen update stay on the screen).

board:
------
Axiom Technology, SBC84510VEE, 3.5" Capa board, 300 MHz Geode

kernel:
-------
standard RH 7.3 update (2.4.18-5)

maybe relevant boot messages:
-----------------------------
Jul 4 10:03:35 ravel kernel: 8139too Fast Ethernet driver 0.9.24
Jul 4 10:03:35 ravel kernel: PCI: Found IRQ 11 for device 00:0e.0
Jul 4 10:03:35 ravel kernel: IRQ routing conflict for 00:0e.0, have irq 10, want irq 11
Jul 4 10:03:35 ravel kernel: eth0: RealTek RTL8139 Fast Ethernet at 0xc4869000, 00:60:e0:01:98:00, IRQ 10
Jul 4 10:03:35 ravel kernel: PCI: Assigned IRQ 5 for device 00:0f.0
Jul 4 10:03:35 ravel kernel: eth1: RealTek RTL8139 Fast Ethernet at 0xc486b000, 00:60:e0:01:97:ff, IRQ 5

dump_pirq output:
-----------------
Interrupt routing table found at address 0xfd9e0:
Version 1.0, size 0x0050
Interrupt router is device 00:12.0
PCI exclusive interrupt mask: 0x0c20 [5,10,11]
Compatible router: vendor 0x1078 device 0x0002

Device 00:0e.0 (slot 1): Ethernet controller
INTA: link 0x02, irq mask 0xdeb8 [3,4,5,7,9,10,11,12,14,15]
INTB: link 0x03, irq mask 0xdeb8 [3,4,5,7,9,10,11,12,14,15]
INTC: link 0x04, irq mask 0xdeb8 [3,4,5,7,9,10,11,12,14,15]
INTD: link 0x01, irq mask 0xdeb8 [3,4,5,7,9,10,11,12,14,15]

Device 00:0f.0 (slot 2): Ethernet controller
INTA: link 0x03, irq mask 0xdeb8 [3,4,5,7,9,10,11,12,14,15]
INTB: link 0x04, irq mask 0xdeb8 [3,4,5,7,9,10,11,12,14,15]
INTC: link 0x01, irq mask 0xdeb8 [3,4,5,7,9,10,11,12,14,15]
INTD: link 0x02, irq mask 0xdeb8 [3,4,5,7,9,10,11,12,14,15]

Device 00:13.0 (slot 0): USB Controller
INTA: link 0x01, irq mask 0xdeb8 [3,4,5,7,9,10,11,12,14,15]

Interrupt router at 00:12.0: CYRIX 5530 PCI-to-ISA bridge
PIRQ (link 0x01): irq 11
PIRQ (link 0x02): irq 10
PIRQ (link 0x03): irq 5
PIRQ (link 0x04): irq 5

cat /proc/cpuinfo:
------------------
processor : 0
vendor_id : CyrixInstead
cpu family : 5
model : 9
model name : Geode(TM) Integrated Processor by National Semi
stepping : 1
cpu MHz : 300.681
cache size : 16 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu tsc msr cx8 cmov mmx cxmmx
bogomips : 599.65

cat /proc/interrupts:
---------------------
CPU0
0: 239687 XT-PIC timer
1: 2 XT-PIC keyboard
2: 0 XT-PIC cascade
8: 1 XT-PIC rtc
10: 4651 XT-PIC eth0
11: 347 XT-PIC usb-ohci
14: 19932 XT-PIC ide0
NMI: 0
ERR: 0

lspci -vxxx:
------------
00:00.0 Host bridge: Cyrix Corporation PCI Master
Flags: bus master, medium devsel, latency 0
00: 78 10 01 00 07 00 80 02 00 00 00 06 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40: 1e 14 00 c1 00 00 00 00 00 00 00 00 00 00 00 00
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:0e.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RT8139
Flags: bus master, medium devsel, latency 32, IRQ 10
I/O ports at e000 [size=256]
Memory at d1000000 (32-bit, non-prefetchable) [size=256]
Expansion ROM at <unassigned> [disabled] [size=256K]
Capabilities: [50] Power Management version 2
Capabilities: [60] Vital Product Data
00: ec 10 39 81 07 00 90 02 10 00 00 02 00 20 00 00
10: 01 e0 00 00 00 00 00 d1 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 ec 10 39 81
30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 01 20 40
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 01 60 c2 f7 00 00 00 00 00 00 00 00 00 00 00 00
60: 03 00 ff ff ff fe ff ff 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:0f.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RT8139
Flags: bus master, medium devsel, latency 32, IRQ 5
I/O ports at e400 [size=256]
Memory at d1001000 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
00: ec 10 39 81 07 00 90 02 10 00 00 02 00 20 00 00
10: 01 e4 00 00 00 10 00 d1 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 ec 10 39 81
30: 00 00 00 00 50 00 00 00 00 00 00 00 05 01 20 40
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 01 00 c2 f7 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:12.0 ISA bridge: Cyrix Corporation 5530 Legacy [Kahlua] (rev 30)
Flags: bus master, medium devsel, latency 0
00: 78 10 00 01 1f 00 80 02 30 00 01 06 04 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40: 81 50 ce 45 01 00 00 00 00 00 00 00 00 00 00 00
50: 7b 10 e8 0b 00 00 00 00 00 00 03 08 ab 55 01 00
60: 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 07 00 00 0e 00 00 00 00 00 00 01 08 00 00 01 00
90: 00 0c 10 f0 00 00 00 00 04 00 04 00 04 00 02 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 04 00 00 00
b0: 00 00 00 00 0c 02 a2 08 40 07 12 0c 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:12.1 Bridge: Cyrix Corporation 5530 SMI [Kahlua]
Flags: medium devsel
Memory at 40012000 (32-bit, non-prefetchable) [size=256]
00: 78 10 01 01 02 00 80 02 00 00 80 06 00 00 00 00
10: 00 20 01 40 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 7b 10 e8 0b 00 00 00 00 00 00 03 08 ab 55 01 00
60: 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 07 00 00 0e 00 00 00 00 00 00 01 08 00 00 01 00
90: 00 0c 10 f0 00 00 00 00 04 00 04 00 04 00 02 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 04 00 00 00
b0: 00 00 00 00 0c 02 a2 08 00 01 2e 0c 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:12.2 IDE interface: Cyrix Corporation 5530 IDE [Kahlua] (prog-if 80 [Master])
Flags: bus master, medium devsel, latency 0
I/O ports at f000 [size=16]
00: 78 10 02 01 05 00 80 02 00 80 01 01 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 01 f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 7b 10 e8 0b 00 00 00 00 00 00 03 08 ab 55 01 00
60: 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 07 00 00 0e 00 00 00 00 00 00 01 08 00 00 01 00
90: 00 0c 10 f0 00 00 00 00 04 00 04 00 04 00 02 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 04 00 00 00
b0: 00 00 00 00 0c 02 a2 08 ef 04 9c 0c 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:12.3 Multimedia audio controller: Cyrix Corporation 5530 Audio [Kahlua]
Flags: bus master, medium devsel, latency 0
Memory at 40011000 (32-bit, non-prefetchable) [size=128]
00: 78 10 03 01 06 00 80 02 00 00 01 04 00 00 00 00
10: 00 10 01 40 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 7b 10 e8 0b 00 00 00 00 00 00 03 08 ab 55 01 00
60: 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 07 00 00 0e 00 00 00 00 00 00 01 08 00 00 01 00
90: 00 0c 10 f0 00 00 00 00 04 00 04 00 04 00 02 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 04 00 00 00
b0: 00 00 00 00 0c 02 a2 08 43 20 b0 0c 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:12.4 VGA compatible controller: Cyrix Corporation 5530 Video [Kahlua] (prog-if 00 [VGA])
Subsystem: Cyrix Corporation: Unknown device 0001
Flags: medium devsel
Memory at 40800000 (32-bit, non-prefetchable) [size=8M]
00: 78 10 04 01 03 00 80 02 00 00 00 03 00 00 80 02
10: 00 00 80 40 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 78 10 01 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:13.0 USB Controller: Compaq Computer Corporation ZFMicro Chipset USB (rev 06) (prog-if 10 [OHCI])
Subsystem: Compaq Computer Corporation ZFMicro Chipset USB
Flags: bus master, medium devsel, latency 32, IRQ 11
Memory at d1005000 (32-bit, non-prefetchable) [size=4K]
00: 11 0e f8 a0 07 00 80 02 06 10 03 0c 08 20 00 00
10: 00 50 00 d1 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 11 0e f8 a0
30: 00 00 00 00 00 00 00 00 00 00 00 00 0b 01 00 50
40: 00 00 0f 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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