Hi Christian Am 15.02.21 um 09:58 schrieb Christian König:
Hi guys,we are currently working an Freesync and direct scan out from system memory on AMD APUs in A+A laptops.On problem we stumbled over is that our display hardware needs to scan out from uncached system memory and we currently don't have a way to communicate that through DMA-buf.For our specific use case at hand we are going to implement something driver specific, but the question is should we have something more generic for this?
I had a patchset here that extends iosys-map (former dma-buf-map) with caching information. I'll post a copy.
Sorry for being late to reply. Best regards Thomas
After all the system memory access pattern is a PCIe extension and as such something generic.Regards, Christian. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev
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