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Message-Id: <200903130051.18119.kgabor@bolyai.elte.hu>
Date: Fri, 13 Mar 2009 00:51:18 -0400
From: Gabor Kovacs <kgabor@...yai.elte.hu>
To: linux-kernel@...r.kernel.org
Subject: Lava dual parallel PCI card IRQ problem
Hi All,
I have problems in setting up IRQ mode operation of parallel ports using
onboard port and a LAVA dual parallel PCI card. IRQ is needed to catch events
of an external instrument.
Motherboard is a K9N2G-Neo (MS-7511) with one onboard parallel port, x86_64
Debian lenny, kernel custom compiled 2.6.26.5.
In the example below, parport_pc is loaded without any arguments, onboard port
works OK in IRQ mode. LAVA card ports are detected but do not have IRQs, work
in polled operation:
modprobe parport_pc
===
parport_pc 00:04: reported by Plug and Play ACPI
parport0: PC-style at 0x378, irq 7 [PCSPP]
ACPI: Power Button (CM) [PWRB]
parport_pc 00:04: driver attached
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 16
ACPI: PCI Interrupt 0000:01:06.0[A] -> Link [LNKC] -> GSI 16 (level, low) ->
IRQ 16
PCI parallel port detected: 1407:8002, I/O at 0xb400(0x0)
parport1: PC-style at 0xb400 [PCSPP,TRISTATE,EPP]
ACPI: PCI Interrupt 0000:01:06.1[A] -> Link [LNKC] -> GSI 16 (level, low) ->
IRQ 16
PCI parallel port detected: 1407:8003, I/O at 0xb080(0x0)
parport2: PC-style at 0xb080 [PCSPP,TRISTATE,EPP]
If "io" and "irq" options are specified, parport_pc falls back to some "dumb"
mode. Onboard port does not work at all (lack of PNP/ACPI initialization ?),
LAVA card may work if proper IRQ and IO address are specified (reported by
lspci -v). In most cases, however, this IRQ is already used by an NEC USB
card in my box. Actually, I could not find any way to control IRQ assignment
for cards. The only way is to remove some cards or playing with card order
in slots.
- Is there a way to autodetect and activate LAVA card in IRQ mode?
- What kind of PnP/ACPI initialization steps are omitted if IO/IRQ parameters
are passed to parport_pc?
- Why can't parport_pc share IRQ? (Other devices apparently share IRQs in the
box. See irq 17 below)
Thanks
Gabor Kovacs
===========
Scenarios:
Lava card works in polled operation, onboard port does not work at all:
modprobe parport_pc io=0x378,0xb400,0xb080 irq=auto,auto,auto
===
parport 0x378 (WARNING): CTR: wrote 0x0c, read 0xff
parport 0x378 (WARNING): DATA: wrote 0xaa, read 0xff
parport 0x378: You gave this address, but there is probably no parallel port
there!
parport0: PC-style at 0x378 [PCSPP,TRISTATE]
parport1: PC-style at 0xb400 [PCSPP,TRISTATE,EPP]
parport2: PC-style at 0xb080 [PCSPP,TRISTATE,EPP]
=========
IRQ conflict is reported by parport_pc:
modprobe parport_pc io=0xb400,0xb080 irq=auto,16
===
parport0: PC-style at 0xb400 [PCSPP,TRISTATE,EPP]
parport1: PC-style at 0xb080, irq 16 [PCSPP,TRISTATE,EPP]
parport1: irq 16 in use, resorting to polled operation
cat /proc/interrupts:
CPU0 CPU1 CPU2 CPU3
0: 37 0 0 0 IO-APIC-edge timer
1: 0 0 0 676 IO-APIC-edge i8042
7: 2 0 0 0 IO-APIC-edge
9: 0 0 0 0 IO-APIC-fasteoi acpi
12: 0 0 8 5194 IO-APIC-edge i8042
14: 0 0 0 0 IO-APIC-edge pata_amd
15: 0 0 0 0 IO-APIC-edge pata_amd
16: 0 0 0 0 IO-APIC-fasteoi
ohci_hcd:usb1
17: 0 0 0 4 IO-APIC-fasteoi
18: 0 0 0 0 IO-APIC-fasteoi
ehci_hcd:usb3
19: 0 0 0 0 IO-APIC-fasteoi
ohci_hcd:usb2
507: 0 0 238 2024744 PCI-MSI-edge eth0
508: 0 0 60 176614 PCI-MSI-edge ahci
NMI: 0 0 0 0 Non-maskable interrupts
LOC: 4898793 4898779 4898752 4898724 Local timer interrupts
RES: 20033 12217 15650 29497 Rescheduling interrupts
CAL: 517 602 607 137 function call interrupts
TLB: 1200 992 869 796 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
SPU: 0 0 0 0 Spurious interrupts
ERR: 1
lspci -v:
========
00:00.0 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller
(rev a2)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: [94] HyperTransport: #1a
Capabilities: [60] HyperTransport: Retry Mode
Capabilities: [44] HyperTransport: Slave or Primary Interface
Capabilities: [d0] HyperTransport: #1c
00:01.0 ISA bridge: nVidia Corporation MCP78S [GeForce 8200] LPC Bridge (rev
a2)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: bus master, 66MHz, fast devsel, latency 0
I/O ports at 2f00 [size=256]
00:01.1 SMBus: nVidia Corporation MCP78S [GeForce 8200] SMBus (rev a1)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: 66MHz, fast devsel, IRQ 11
I/O ports at 2900 [size=64]
I/O ports at 2d00 [size=64]
I/O ports at 2e00 [size=64]
Capabilities: [44] Power Management version 2
00:01.2 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller
(rev a1)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: 66MHz, fast devsel
00:01.3 Co-processor: nVidia Corporation MCP78S [GeForce 8200] Co-Processor
(rev a2)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 15
Memory at fcf80000 (32-bit, non-prefetchable) [size=512K]
00:01.4 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller
(rev a1)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: 66MHz, fast devsel
00:06.0 IDE interface: nVidia Corporation MCP78S [GeForce 8200] IDE (rev a1)
(prog-if 8a [Master SecP PriP])
Subsystem: Device f462:7511
Flags: bus master, 66MHz, fast devsel, latency 0
[virtual] Memory at 000001f0 (32-bit, non-prefetchable) [disabled]
[size=8]
[virtual] Memory at 000003f0 (type 3, non-prefetchable) [disabled]
[size=1]
[virtual] Memory at 00000170 (32-bit, non-prefetchable) [disabled]
[size=8]
[virtual] Memory at 00000370 (type 3, non-prefetchable) [disabled]
[size=1]
I/O ports at ffa0 [size=16]
Capabilities: [44] Power Management version 2
Kernel driver in use: pata_amd
Kernel modules: pata_amd, ide-pci-generic
00:08.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Bridge (rev
a1) (prog-if 01 [Subtractive decode])
Flags: bus master, 66MHz, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
I/O behind bridge: 0000b000-0000bfff
Capabilities: [b8] Subsystem: Micro-Star International Co., Ltd.
Device 7511
Capabilities: [8c] HyperTransport: MSI Mapping Enable+ Fixed-
00:09.0 SATA controller: nVidia Corporation MCP78S [GeForce 8200] AHCI
Controller (rev a2) (prog-if 01 [AHCI 1.0])
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 508
I/O ports at a480 [size=8]
I/O ports at a400 [size=4]
I/O ports at a080 [size=8]
I/O ports at a000 [size=4]
I/O ports at 9c00 [size=16]
Memory at fcf7e000 (32-bit, non-prefetchable) [size=8K]
Capabilities: [44] Power Management version 2
Capabilities: [8c] SATA HBA <?>
Capabilities: [b0] Message Signalled Interrupts: Mask- 64bit+
Queue=0/3 Enable+
Capabilities: [ec] HyperTransport: MSI Mapping Enable+ Fixed+
Kernel driver in use: ahci
Kernel modules: ahci
00:0a.0 Ethernet controller: nVidia Corporation MCP78S [GeForce 8200] Ethernet
(rev a2)
Subsystem: Micro-Star International Co., Ltd. Device 511c
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 507
Memory at fcf7d000 (32-bit, non-prefetchable) [size=4K]
I/O ports at 9880 [size=8]
Memory at fcf7cc00 (32-bit, non-prefetchable) [size=256]
Memory at fcf7c800 (32-bit, non-prefetchable) [size=16]
Capabilities: [44] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+
Queue=0/4 Enable+
Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fixed+
Kernel driver in use: forcedeth
Kernel modules: forcedeth
00:0b.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Express
Bridge (rev a1) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: fd000000-fe8fffff
Prefetchable memory behind bridge: 00000000ce000000-00000000dfffffff
Capabilities: [40] Subsystem: Micro-Star International Co., Ltd.
Device 7511
Capabilities: [48] Power Management version 2
Capabilities: [60] HyperTransport: MSI Mapping Enable+ Fixed-
00:10.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Express
Bridge (rev a1) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=04, sec-latency=0
Memory behind bridge: fe900000-fe9fffff
Capabilities: [40] Subsystem: Micro-Star International Co., Ltd.
Device 7511
Capabilities: [48] Power Management version 3
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+
Queue=0/1 Enable+
Capabilities: [60] HyperTransport: MSI Mapping Enable+ Fixed-
Capabilities: [80] Express Root Port (Slot+), MSI 00
Kernel driver in use: pcieport-driver
00:13.0 PCI bridge: nVidia Corporation Device 077a (rev a1) (prog-if 00
[Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fea00000-feafffff
Capabilities: [40] Subsystem: Micro-Star International Co., Ltd.
Device 7511
Capabilities: [48] Power Management version 3
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+
Queue=0/1 Enable+
Capabilities: [60] HyperTransport: MSI Mapping Enable+ Fixed-
Capabilities: [80] Express Root Port (Slot+), MSI 00
Kernel driver in use: pcieport-driver
00:14.0 PCI bridge: nVidia Corporation Device 077a (rev a1) (prog-if 00
[Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: feb00000-febfffff
Capabilities: [40] Subsystem: Micro-Star International Co., Ltd.
Device 7511
Capabilities: [48] Power Management version 3
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+
Queue=0/1 Enable+
Capabilities: [60] HyperTransport: MSI Mapping Enable+ Fixed-
Capabilities: [80] Express Root Port (Slot+), MSI 00
Kernel driver in use: pcieport-driver
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
Athlon64, Sempron] HyperTransport Configuration
Flags: fast devsel
Capabilities: [80] HyperTransport: Host or Secondary Interface
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
Athlon64, Sempron] Address Map
Flags: fast devsel
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
Athlon64, Sempron] DRAM Controller
Flags: fast devsel
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
Athlon64, Sempron] Miscellaneous Control
Flags: fast devsel
Capabilities: [f0] Secure device <?>
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
Athlon64, Sempron] Link Control
Flags: fast devsel
01:05.0 Serial controller: Lava Computer mfg Inc Quattro-PCI A (rev 03)
(prog-if 02 [16550])
Subsystem: Lava Computer mfg Inc Quattro-PCI A
Flags: medium devsel, IRQ 17
I/O ports at bc00 [size=8]
I/O ports at b880 [size=8]
Kernel driver in use: serial
Kernel modules: 8250_pci
01:05.1 Serial controller: Lava Computer mfg Inc Quattro-PCI B (rev 03)
(prog-if 02 [16550])
Subsystem: Lava Computer mfg Inc Quattro-PCI B
Flags: medium devsel, IRQ 17
I/O ports at b800 [size=8]
I/O ports at b480 [size=8]
Kernel driver in use: serial
Kernel modules: 8250_pci
01:06.0 Parallel controller: Lava Computer mfg Inc Lava Dual Parallel port A
(rev 03) (prog-if 01 [BiDir])
Subsystem: Lava Computer mfg Inc Lava Dual Parallel port A
Flags: medium devsel, IRQ 16
I/O ports at b400 [size=8]
Kernel modules: parport_pc
01:06.1 Parallel controller: Lava Computer mfg Inc Lava Dual Parallel port B
(rev 03) (prog-if 01 [BiDir])
Subsystem: Lava Computer mfg Inc Lava Dual Parallel port B
Flags: medium devsel, IRQ 16
I/O ports at b080 [size=8]
Kernel modules: parport_pc
01:07.0 DPIO module: Quicklogic Corporation PC Watchdog (rev 01)
Subsystem: Device 161c:046a
Flags: medium devsel
I/O ports at b000 [size=8]
Kernel driver in use: pcwd_pci
Kernel modules: pcwd_pci
02:00.0 VGA compatible controller: nVidia Corporation GeForce 8200 (rev a2)
(prog-if 00 [VGA controller])
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: bus master, fast devsel, latency 0, IRQ 10
Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at ce000000 (64-bit, prefetchable) [size=32M]
I/O ports at cc00 [size=128]
Expansion ROM at fe8e0000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Capabilities: [68] Message Signalled Interrupts: Mask- 64bit+
Queue=0/0 Enable-
Kernel modules: nvidiafb, nvidia
03:00.0 PCI bridge: Texas Instruments XIO2000(A)/XIO2200(A) PCI Express-to-PCI
Bridge (rev 03) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=03, secondary=04, subordinate=04, sec-latency=64
Memory behind bridge: fe900000-fe9fffff
Capabilities: [50] Power Management version 2
Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+
Queue=0/4 Enable-
Capabilities: [80] Subsystem: Gammagraphx, Inc. Device 0000
Capabilities: [90] Express PCI/PCI-X Bridge, MSI 00
04:01.0 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
Subsystem: NEC Corporation Hama USB 2.0 CardBus
Flags: bus master, medium devsel, latency 64, IRQ 16
Memory at fe9ff000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 2
Kernel driver in use: ohci_hcd
Kernel modules: ohci-hcd
04:01.1 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
Subsystem: NEC Corporation Hama USB 2.0 CardBus
Flags: bus master, medium devsel, latency 64, IRQ 19
Memory at fe9fe000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 2
Kernel driver in use: ohci_hcd
Kernel modules: ohci-hcd
04:01.2 USB Controller: NEC Corporation USB 2.0 (rev 04) (prog-if 20 [EHCI])
Subsystem: Device 1838:1074
Flags: bus master, medium devsel, latency 64, IRQ 18
Memory at fe9fdc00 (32-bit, non-prefetchable) [size=256]
Capabilities: [40] Power Management version 2
Kernel driver in use: ehci_hcd
Kernel modules: ehci-hcd
05:00.0 Ethernet controller: VIA Technologies, Inc. VT6120/VT6121/VT6122
Gigabit Ethernet Adapter (rev 81)
Subsystem: VIA Technologies, Inc. Device 0110
Flags: fast devsel, IRQ 18
I/O ports at d800 [size=256]
Memory at feaffc00 (64-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 3
Capabilities: [90] Express Endpoint, MSI 00
Capabilities: [c0] Message Signalled Interrupts: Mask+ 64bit+
Queue=0/0 Enable-
Kernel driver in use: via-velocity
Kernel modules: via-velocity
06:00.0 Ethernet controller: VIA Technologies, Inc. VT6120/VT6121/VT6122
Gigabit Ethernet Adapter (rev 82)
Subsystem: VIA Technologies, Inc. Device 0110
Flags: fast devsel, IRQ 17
I/O ports at e800 [size=256]
Memory at febffc00 (64-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 3
Capabilities: [90] Express Endpoint, MSI 00
Capabilities: [c0] Message Signalled Interrupts: Mask+ 64bit+
Queue=0/0 Enable-
Kernel driver in use: via-velocity
Kernel modules: via-velocity
=========
When the conflicting USB card is removed, Lava card works with IRQ if proper
IO and IRQ are specified:
modprobe parport_pc io=0xcc00,0xc880 irq=none,16
===
parport0: PC-style at 0xcc00 [PCSPP,TRISTATE,EPP]
parport1: PC-style at 0xc880, irq 16 [PCSPP,TRISTATE,EPP]
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