Re: irq 16: nobody cared

From: Borislav Petkov <bp@alien8.de>
To: Takashi Iwai <tiwai@suse.de>
Cc: paulmck@linux.vnet.ibm.com, x86-ml <x86@kernel.org>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: irq 16: nobody cared
Date: Mon, 22 Apr 2013 12:06:57 +0200	[thread overview]
Message-ID: <20130422100657.GF4637@pd.tnic> (raw)
In-Reply-To: <s5hzjwq53ec.wl%tiwai@suse.de>

On Mon, Apr 22, 2013 at 11:19:07AM +0200, Takashi Iwai wrote:
> Is the PCI device a HD-audio controller for the built-in analog or
> a HDMI audio controller coupled with a graphics chip?

Hmm:

[    7.204020] snd_hda_intel 0000:01:00.1: irq 90 for MSI/MSI-X
[    7.551912]   #0: HDA ATI SB at 0xfeb00000 irq 16
[    7.551965]   #1: HDA ATI HDMI at 0xfea30000 irq 90
[   70.870377] snd_hda_intel 0000:01:00.1: irq 90 for MSI/MSI-X

# lspci -s 01:00.1 -vvv
01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI RV635 HDMI Audio [Radeon HD 3600 Series]
        Subsystem: ASUSTeK Computer Inc. Device aa20
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin B routed to IRQ 90
        Region 0: Memory at fea30000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 3
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [58] Express (v2) Legacy Endpoint, MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
                        ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
                        MaxPayload 128 bytes, MaxReadReq 128 bytes
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
                LnkCap: Port #0, Speed 5GT/s, Width x16, ASPM L0s L1, Latency L0 <64ns, L1 <1us
                        ClockPM- Surprise- LLActRep- BwNot-
                LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Not Supported, TimeoutDis-
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
                LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
                         Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
                         EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
        Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
                Address: 00000000feeff00c  Data: 4164
        Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
        Kernel driver in use: snd_hda_intel

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--