[PATCH 4/4] sounds/hda/radeon: Disable 64-bit DMA on radeon

[Alex Deucher]

On Wed, Oct 1, 2014 at 6:08 PM, Benjamin Herrenschmidt
<benh at kernel.crashing.org> wrote:
> On Wed, 2014-10-01 at 13:58 -0400, Alex Deucher wrote:
>> Patch looks good.  Audio DMAs are limited to 40 bits, same as the GPU
>> side.  I'm still waiting to hear back on the MSIs for audio, but they
>> probably follow the GPU side, so I expect they should be fixed on Sea
>> Islands as well.
>
> In the audio driver we don't have the "family names", just a list of
> PCI IDs, do you happen to know which ones are unaffected ?

The list of unaffected ones are:
0x1308 //kaveri
0x9840 //Kabini
0xaac0 //bonaire
0xaac8 //hawaii
0xaad8 //tonga
Pus all newer asics.

Alternatively, the list of older asics that are affected (some of
these may not even support MSI64 in the first place):
0x1314 //palm
0x7919 //RS690
0x793b //RS600
0x7969 //RS740
0x960f //RS780
0x9646 //sumo
0x970f //RS880
0x9902 //trinity
0xaa00 //R600
0xaa08 //RV630
0xaa10 //RV610
0xaa18 //RV670
0xaa20 //RV635
0xaa28 //RV620
0xaa30 //RV770
0xaa38 //RV730
0xaa40 //RV710
0xaa48 //RV740
0xaa50 //cypress
0xaa58 //juniper
0xaa60 //redwood
0xaa68 //cedar
0xaa80 //cayman
0xaa88 //barts
0xaa90 //turks
0xaa98 //caicos
0xaaa0 //tahiti
0xaab0 //verde, pitcairn, oland

It might be better to only set the msi32 flag on the above affected
asics so we don't have to worry about new ones.

Alex