At Mon, 04 Nov 2013 13:21:25 +0100, daggs@xxxxxxx wrote: > > the original issue is that wen using an ATI gpu with hdmi in it, rerouting the sound via the ati hdmi card doesn't work, only via the generic. > > alsa devs pointed out that the ati cards listed in intel_hda.c aren't updated with latest cards due to insufficient info on about the cards. > > Alex Deucher from AMD's dev answered that he will query the right team in his workplace but no response was received fro him yet. OK, then could you alsa-info.sh output? The situation in the upstream has changed since we have a lot more AMD-specific HDMI codes in the latest driver for 3.13 kernel. So, it's not only a matter of snoop flag. Takashi > > > ----- Original Message ----- > > From: Takashi Iwai > > Sent: 11/04/13 10:43 AM > > To: Dagg Stompler > > Subject: Re: [alsa-devel] hdmi sound rerouted? > > > > At Sun, 03 Nov 2013 08:50:55 +0100, > > Dagg Stompler wrote: > > > > > > > ----- Original Message ----- > > > > From: Deucher, Alexander > > > > Sent: 10/19/13 03:59 PM > > > > To: Dagg Stompler, Takashi Iwai > > > > Subject: RE: [alsa-devel] hdmi sound rerouted? > > > > > > > > > -----Original Message----- > > > > > > > > > From: Dagg Stompler [mailto:daggs@xxxxxxx] > > > > > > > > > Sent: Saturday, October 19, 2013 5:49 AM > > > > > > > > > To: Takashi Iwai; Deucher, Alexander > > > > > > > > > Cc: Clemens Ladisch; alsa-user@xxxxxxxxxxxxxxxxxxxxx; alsa-devel@alsa- > > > > > > > > > project.org > > > > > > > > > Subject: Re: [alsa-devel] hdmi sound rerouted? > > > > > > > > > > > > > > > > > > > ----- Original Message ----- > > > > > > > > > > From: Takashi Iwai > > > > > > > > > > Sent: 10/08/13 10:49 AM > > > > > > > > > > To: Deucher, Alexander > > > > > > > > > > Subject: Re: [alsa-devel] hdmi sound rerouted? > > > > > > > > > > > > > > > > > > > > At Mon, 7 Oct 2013 13:36:24 +0000, > > > > > > > > > > Deucher, Alexander wrote: > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > > > > From: Takashi Iwai [mailto:tiwai@xxxxxxx] > > > > > > > > > > > > Sent: Monday, September 30, 2013 5:18 AM > > > > > > > > > > > > To: Deucher, Alexander > > > > > > > > > > > > Cc: Clemens Ladisch; Dagg Stompler; alsa-user@xxxxxxxxxxxxxxxxxxxxx; > > > > > > > > > alsa- > > > > > > > > > > > > devel@xxxxxxxxxxxxxxxx > > > > > > > > > > > > Subject: Re: [alsa-devel] hdmi sound rerouted? > > > > > > > > > > > > > > > > > > > > > > > > At Mon, 30 Sep 2013 02:23:22 +0000, > > > > > > > > > > > > Deucher, Alexander wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > > > > > > From: Clemens Ladisch [mailto:cladisch@xxxxxxxxxxxxxx] > > > > > > > > > > > > > > Sent: Saturday, September 28, 2013 6:33 PM > > > > > > > > > > > > > > To: Dagg Stompler > > > > > > > > > > > > > > Cc: alsa-user@xxxxxxxxxxxxxxxxxxxxx; Deucher, Alexander; alsa- > > > > > > > > > > > > devel@alsa- > > > > > > > > > > > > > > project.org > > > > > > > > > > > > > > Subject: Re: [alsa-devel] hdmi sound rerouted? > > > > > > > > > > > > > > > > > > > > > > > > > > > > Dagg Stompler wrote: > > > > > > > > > > > > > > >> daggs@xxxxxxx wrote: > > > > > > > > > > > > > > >>> card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] > > > > > > > > > > > > > > >>> card 1: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0] > > > > > > > > > > > > > > >>> card 2: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0] > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > >> The second one is called "Generic" because your kernel does not > > > > > > > > > (yet) > > > > > > > > > > > > > > >> know the hardware. > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > >>> 01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] > > > > > > > > > Cedar > > > > > > > > > > > > > > HDMI Audio [Radeon HD 5400/6300 Series] > > > > > > > > > > > > > > >>> 06:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] > > > > > > > > > RV635 > > > > > > > > > > > > > > HDMI Audio [Radeon HD 3600 Series] > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > >> These are the HDMI outputs of *two* graphics cards. The first > > > > > > > > > one's > > > > > > > > > > > > > > >> model is so new that the driver doesn't know it. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > the 3600 doesn't have hdmi socket so I think it is irrelevant for my > > > > > > > > > issue. > > > > > > > > > > > > > > > > > > > > > > > > > > > > The RV635 chip does support HDMI outputs (even if none are > > > > > > > > > actually > > > > > > > > > > > > > > connected), so the corresponding PCI device shows up here. > > > > > > > > > > > > > > > > > > > > > > > > > > > > >>> If you update the kernel, you will get two devices named "HDA > > > > > > > > > ATI > > > > > > > > > > > > > > HDMI". > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > upgrade to where? > > > > > > > > > > > > > > > > > > > > > > > > > > > > Oops. Even the latest driver lacks the PCI IDs of many HDMI HDA > > > > > > > > > devices > > > > > > > > > > > > > > (aa50/aa58/aa60/aa68/aa80/aa88/aa90/aa98: > > > > > > > > > > > > > > Cypress/Juniper/Redwood/Cedar/ > > > > > > > > > > > > > > Cayman+Antilles/Barts/Turks/Caicos). > > > > > > > > > > > > > > > > > > > > > > > > > > > > Alex, are these devices that require disabling snooping? > > > > > > > > > > > > > > > > > > > > > > > > > > Sorry what does snooping mean in this context? > > > > > > > > > > > > > > > > > > > > > > > > Most of HD-audio controller have a snoop control, but the recent AMD > > > > > > > > > > > > HDMI audio controller don't have the feature, thus the driver must use > > > > > > > > > > > > the non-cached pages. At least, PCI ID 1002:aaa0, aaa8 and aab0 are > > > > > > > > > > > > known to require such. > > > > > > > > > > > > > > > > > > > > > > > > Now the question is whether all new chips above (aa50,...) require the > > > > > > > > > > > > same workaround, too. Could you check this or forward the inquiry to > > > > > > > > > > > > someone in AMD? > > > > > > > > > > > > > > > > > > > > > > According to our internal teams, disabling snooping is only required on > > > > > > > > > the audio parts included in Evergreen and Northern Islands GPUs. Older chips > > > > > > > > > like R7xx (aa48) and newer chips like Southern Islands (aaa0) are able to use > > > > > > > > > snooping. I'm not real familiar with the audio portions of the GPUs so if you > > > > > > > > > need further clarification, let me know. > > > > > > > > > > > > > > > > > > > > Thanks for the information. > > > > > > > > > > > > > > > > > > > > Though, it's strange that the information doesn't match with what I've > > > > > > > > > > heard (and also with what I've tested with a laptop). I've heard that > > > > > > > > > > it's Southern Island HDMI that needs the snoop-disablement. > > > > > > > > > > > > > > > > > > > > Could you ask again whether it's really Evergreen / Nothern Islands? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > thanks, > > > > > > > > > > > > > > > > > > > > Takashi > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Alex > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > FWIW, such a chip needs to set AZX_DRIVER_ATIHDMI_NS bits in > > > > > > > > > > > > driver_data of pci entries in sound/pci/hda/hda_intel.c. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > thanks, > > > > > > > > > > > > > > > > > > > > > > > > Takashi > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > any updates on the matter guys? > > > > > > > > > > > > > > > > > > > > > > > > Haven't heard back. I'll ping them again. > > > > > > > > > > > > > > > > Alex > > > > > > sorry for nudging, any updates? > > > > Well, what's your original issue? > > I wasn't in the loop from the beginning, so I don't know what is the > > information you need to know. > > > > If disablement of the snoop is mandatory on your board, we need to add > > the workaround in the driver no matter what spec says. (The datasheet > > is often wrong in practice :) > > > > > > Takashi > > > ------------------------------------------------------------------------------ Android is increasing in popularity, but the open development platform that developers love is also attractive to malware creators. 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