Am Sunday 04 January 2009 07:27:00 schrieben Sie: > Hans-Frieder, > > > Hi Peter, hi List, > > > > attached is a patch that enables MSI on the cx23885. I tested this patch > > for a while now on a Dvico FusionHDTV Dual Express and have not found any > > side effects. It works on versions 2.6.27.x and 2.6.28. 2.6.28-gitx not > > tried yet. > > I applied your patch against trunk v4l-dvb tree on stock Ubuntu kernel > 2.6.27-9. > > While the module loads properly when passed enable_msi=1 and > /proc/interrupts as well as lspci tell me that everything should be set > up fine, I am not getting any interrupts delivered as per attached > output of: > cat /proc/interrupts > > For troubleshooting purposes I have also attached the output of: > dmesg | egrep -i "tv|dvb|haupp|cx|tda" > > /peter Hm, strange! I attached the same data that you collected for my environment. The only difference that I see is, that I get in dmesg (or kern.log) immediately after the line cx23885 0000:03:00.0: setting latency timer to 64 the confirmation that MSI is activated: cx23885 0000:03:00.0: irq 315 for MSI/MSI-X It seems that for your card, the PCI code is stuck halfways?! As you have other devices running with MSI, can you please check whether you see a line ... irq xyz for MSI/MSI-X for them? This would narrow down the region in the code to search for the problem. Regards, Hans-Frieder
[ 8.928904] cx23885 driver version 0.0.1 loaded [ 8.930726] cx23885 0000:03:00.0: PCI INT A -> Link[LN0A] -> GSI 19 (level, low) -> IRQ 19 [ 8.931185] CORE cx23885[0]: subsystem: 18ac:db78, board: DViCO FusionHDTV DVB-T Dual Express [card=11,autodetected] [ 9.258821] input: i2c IR (FusionHDTV) as /devices/virtual/input/input2 [ 9.317611] ir-kbd-i2c: i2c IR (FusionHDTV) detected at i2c-0/0-006b/ir0 [cx23885[0]] [ 9.318109] cx23885_dvb_register() allocating 1 frontend(s) [ 9.318178] cx23885[0]: cx23885 based dvb card [ 9.398854] xc2028 0-0061: creating new instance [ 9.398916] xc2028 0-0061: type set to XCeive xc2028/xc3028 tuner [ 9.398980] DVB: registering new adapter (cx23885[0]) [ 9.399036] DVB: registering adapter 0 frontend 0 (Zarlink ZL10353 DVB-T)... [ 9.399555] cx23885_dvb_register() allocating 1 frontend(s) [ 9.399612] cx23885[0]: cx23885 based dvb card [ 9.400354] xc2028 1-0061: creating new instance [ 9.400408] xc2028 1-0061: type set to XCeive xc2028/xc3028 tuner [ 9.400464] DVB: registering new adapter (cx23885[0]) [ 9.400519] DVB: registering adapter 1 frontend 0 (Zarlink ZL10353 DVB-T)... [ 9.400927] cx23885_dev_checkrevision() Hardware revision = 0xb0 [ 9.400990] cx23885[0]/0: found at 0000:03:00.0, rev: 2, irq: 19, latency: 0, mmio: 0xfea00000 [ 9.401069] cx23885 0000:03:00.0: setting latency timer to 64 [ 9.401140] cx23885 0000:03:00.0: irq 315 for MSI/MSI-X [ 34.554403] i2c-adapter i2c-0: firmware: requesting xc3028-v27.fw [ 34.655312] xc2028 0-0061: Loading 80 firmware images from xc3028-v27.fw, type: xc2028 firmware, ver 2.7 [ 34.856389] xc2028 0-0061: Loading firmware for type=BASE F8MHZ (3), id 0000000000000000. [ 36.003429] xc2028 0-0061: Loading firmware for type=D2633 DTV8 (210), id 0000000000000000. [ 36.017390] xc2028 0-0061: Loading SCODE for type=DTV78 ZARLINK456 SCODE HAS_IF_4760 (62000100), id 0000000000000000. [ 36.381875] i2c-adapter i2c-1: firmware: requesting xc3028-v27.fw [ 36.393020] xc2028 1-0061: Loading 80 firmware images from xc3028-v27.fw, type: xc2028 firmware, ver 2.7 [ 36.393225] xc2028 1-0061: Loading firmware for type=BASE F8MHZ (3), id 0000000000000000. [ 37.336752] xc2028 1-0061: Loading firmware for type=D2633 DTV8 (210), id 0000000000000000. [ 37.350886] xc2028 1-0061: Loading SCODE for type=DTV78 ZARLINK456 SCODE HAS_IF_4760 (62000100), id 0000000000000000. [ 177.654931] xc2028 1-0061: Loading firmware for type=D2633 DTV78 (110), id 0000000000000000. [ 177.669134] xc2028 1-0061: Loading SCODE for type=DTV78 ZARLINK456 SCODE HAS_IF_4760 (62000100), id 0000000000000000.
03:00.0 Multimedia video controller: Conexant Systems, Inc. CX23885 PCI Video and Audio Decoder (rev 02) Subsystem: DViCO Corporation Device db78 Flags: bus master, fast devsel, latency 0, IRQ 315 Memory at fea00000 (64-bit, non-prefetchable) [size=2M] Capabilities: [40] Express Endpoint, MSI 00 Capabilities: [80] Power Management version 2 Capabilities: [90] Vital Product Data <?> Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+ Capabilities: [100] Advanced Error Reporting <?> Capabilities: [200] Virtual Channel <?> Kernel driver in use: cx23885 Kernel modules: cx23885
CPU0 CPU1 0: 45 1 IO-APIC-edge timer 1: 0 2 IO-APIC-edge i8042 6: 0 5 IO-APIC-edge floppy 7: 1 0 IO-APIC-edge 8: 0 1 IO-APIC-edge rtc0 9: 0 0 IO-APIC-fasteoi acpi 12: 0 5 IO-APIC-edge i8042 20: 1 668 IO-APIC-fasteoi nvidia 21: 0 0 IO-APIC-fasteoi ehci_hcd:usb3 22: 0 0 IO-APIC-fasteoi ohci_hcd:usb2, ohci_hcd:usb4 23: 0 0 IO-APIC-fasteoi ehci_hcd:usb1 314: 6 13426 PCI-MSI-edge eth1 315: 3 2383 PCI-MSI-edge cx23885[0] 316: 0 215 PCI-MSI-edge HDA Intel 317: 11 11955 PCI-MSI-edge ahci NMI: 0 0 Non-maskable interrupts LOC: 27488 21523 Local timer interrupts RES: 2678 2372 Rescheduling interrupts CAL: 1001 85 Function call interrupts TLB: 417 173 TLB shootdowns TRM: 0 0 Thermal event interrupts THR: 0 0 Threshold APIC interrupts SPU: 0 0 Spurious interrupts ERR: 1 MIS: 0
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