Messages in this thread | | | Subject | Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC | From | Benjamin Herrenschmidt <> | Date | Mon, 03 Mar 2008 07:47:09 +1100 |
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> Xorg (v7.1.1, Debian Etch) crashes with this patch (applied to 2.6.25-rc3) > on my AmigaOne with a Radeon 9200 (PCIGART mode enabled). See the attached > log file for the stack trace.
That doesn't look possible, which is weird... looks like we are passing 0 to clean_dcache_range().
Interestingly enough, I can -see- possible issues with the ppc32 DMA API when trying to use HIGHMEM but that isn't the case here...
Can you add printk's to ati_pcigart.c to print the arguments passed to
+ dma_sync_single_for_device(&dev->pdev->dev, + bus_address, + max_pages * sizeof(u32), + PCI_DMA_TODEVICE); +
And also print the result of bus_to_virt(bus_address) ?
Ben.
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