<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - gfx corruption on windowed 3d-apps running on dGPU" href="https://bugs.freedesktop.org/show_bug.cgi?id=101691#c51">Comment # 51</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - gfx corruption on windowed 3d-apps running on dGPU" href="https://bugs.freedesktop.org/show_bug.cgi?id=101691">bug 101691</a> from <a class="email" href="mailto:daniel@ffwll.ch" title="Daniel Vetter <daniel@ffwll.ch>"> Daniel Vetter</a> <pre>btw the SNOOPED diff is from me. I think what amdgpu should do is set that for any dma-buf shared (i.e. dma_buf_attach has been called) or imported buffer. We can't set it for all exported buffers because dma-buf fd sharing withint the same device instance. But I didn't figure out how to wire that through ttm, the caching_mode seems to be on the tt, not the bo itself. Longer-term we might need/want to add a dma_buf_get/set_coherency_mode() function so that we don't have to opt for the most defensive thing available. The set_coherency_mode is required because apparently on kbl the "uncached" mode can pull cachelines into the cache and then reuse them.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>