https://bugs.freedesktop.org/show_bug.cgi?id=83500
Priority: medium Bug ID: 83500 Assignee: dri-devel@lists.freedesktop.org Summary: si_dma_copy_tile causes GPU hangs Severity: normal Classification: Unclassified OS: Linux (All) Reporter: greg@chown.ath.cx Hardware: x86-64 (AMD64) Status: NEW Version: git Component: Drivers/Gallium/radeonsi Product: Mesa
Created attachment 105745 --> https://bugs.freedesktop.org/attachment.cgi?id=105745&action=edit Workaround
Async DMA linear to tiled copies are causing GPU hangs in some cases. On Cape Verde, I can easily triggers this as described in [1]. The game Brutal Legend also triggers similar hangs when it streams assets while gameplay.
Disabling usage of this function and using the resource_copy_region fallback instead fixes all hangs. The attached patch does that.
[1] https://bugs.freedesktop.org/show_bug.cgi?id=79980#c124