search for: pci_dma_sync_single_for_device

Hey, Are there any known issues with the Intel''s integrated HD graphics 4000? I just bought a new laptop and have tried everything I can think of to get Xen to load. After choosing Xen in GRUB, it just boots to a black screen. There is no error message , no dmesg output, nothing. I have no idea what is causing this problem. I''ve gotten Xen to install with no problems on another

...dev(drm->dev); + struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm; + int i; + + if (!ttm_dma) + return; + + if (nv_device_is_cpu_coherent(device) || nvbo->force_coherent) + return; + + if (nv_device_is_pci(device)) { + for (i = 0; i < ttm_dma->ttm.num_pages; i++) + pci_dma_sync_single_for_device(device->pdev, + ttm_dma->dma_address[i], PAGE_SIZE, + PCI_DMA_TODEVICE); + } else { + for (i = 0; i < ttm_dma->ttm.num_pages; i++) + dma_sync_single_for_device(nv_device_base(device), + ttm_dma->dma_address[i], PAGE_SIZE, + DMA_TO_DEVICE); + } +} + +void +nouveau_bo_sy...

...ivers can be blissfully ignorant. The explicit is_coherent check makes this a bit leaky. And same comment that underlying the bus-specifics dma-mapping functions are identical. -Daniel > + > + if (nv_device_is_pci(device)) { > + for (i = 0; i < ttm_dma->ttm.num_pages; i++) > + pci_dma_sync_single_for_device(device->pdev, > + ttm_dma->dma_address[i], PAGE_SIZE, > + PCI_DMA_TODEVICE); > + } else { > + for (i = 0; i < ttm_dma->ttm.num_pages; i++) > + dma_sync_single_for_device(nv_device_base(device), > + ttm_dma->dma_address[i], PAGE_SIZE, > + DMA_TO_DEV...

Another revision of this patchset critical for GK20A to operate. Previous attempts were exclusively using either TTM's regular page allocator or the DMA API one. Both have their advantages and drawbacks: the page allocator is fast but requires explicit synchronization on non-coherent architectures, whereas the DMA allocator always returns coherent memory, but is also slower, creates a

Hello, I''m facing a strange issue with network card PCI passthrough on my openwrt test domU. - With network PCI passthrough, DNS lookup failed for some domains (exemple, google.com) but not for other (free.fr my ISP, or my domain jbfavre.org). I can ping an IP address without any problem. - Starting domU as a "normal" (ie without PCI passthrough), no problem. As far as I can