This hand't been indexed, so i'll resending. Sorry for the noise... 11.09.2013, 15:11, "Alex Ivanov" <gnidorah@xxxxxxxxx>: > Mates, let's continue with this issue at dri-devel@xxxxxxxxxxxxxxxxxxxxx > Here's where we stopped: > > --[start]-- > >> От: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> >> Тема: Ответ: drm/radeon: "ring test failed" on PA-RISC Linux >> Дата: 10 сентября 2013 г., 17:25:29 GMT+04:00 >> Кому: Alex Ivanov <gnidorah@xxxxxxxxx> >> Копия: Alex Deucher <alexdeucher@xxxxxxxxx>, Maling list - DRI developers <dri-devel@xxxxxxxxxxxxxxxxxxxxx> >> >> On Tue, Sep 10, 2013 at 01:20:57PM +0400, Alex Ivanov wrote: >>> Thanks! I'll try. Meanwhile i've tried a switch from page_alloc() to >>> dma_alloc_coherent() in radeon_dummy_page_*(), which didn't help :( >> Is this platform enabling the SWIOTLB layer? The reason I am asking is >> b/c if you do indeed enable it you end up using the TTM DMA pool >> which allocates pages using the dma_alloc_coherent - which means that >> all of the pages that come out of TTM are already 'DMA' mapped. >> >> And that means the radeon_gart_bind and all its friends >> use the DMA addresses that have been constructed by SWIOTLB IOMMU. >> >> Perhaps the PA-RISC IOMMU creates the DMA addresses differently? >> >> When the card gets programmed, you do end up using ttm_agp_bind right? >> I am wondering if something like this: >> >> https://lkml.org/lkml/2010/12/6/512 >> >> is needed to pass in the right DMA address? > > --[end]-- > > Thomas, > >> What I'm still wondering is whether radeon DRM really works on 64bit >> big endian boxes. >> Is it running on any big endian boxes ? > > It's running ok at least on 32-bit big-endian PowerPCs and on 64-bit > big-endian PowerPC G5 machines. > >> Is there any prove, that someone has it running ? > > Here they are: > https://groups.google.com/d/msg/linux.kernel/BnAMrzyO2wg/W-R5UVh_VLIJ > And here's an excerpt from this one: > http://lists.freedesktop.org/archives/dri-devel/2013-September/045029.html > "I don't think that will any difference. radeon kms works fine on > other big endian platforms such as powerpc." > -- > To unsubscribe from this list: send the line "unsubscribe linux-parisc" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
