<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Long pauses with Unreal demo Elemental on R9270X since : Always flush the HDP cache before submitting a CS to the GPU" href="https://bugs.freedesktop.org/show_bug.cgi?id=84662#c14">Comment # 14</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Long pauses with Unreal demo Elemental on R9270X since : Always flush the HDP cache before submitting a CS to the GPU" href="https://bugs.freedesktop.org/show_bug.cgi?id=84662">bug 84662</a> from <a class="email" href="mailto:adf.lists@gmail.com" title="Andy Furniss <adf.lists@gmail.com>"> Andy Furniss</a> <pre>(In reply to Michel Dänzer from <a href="show_bug.cgi?id=84662#c12">comment #12</a>) > Created <a href="attachment.cgi?id=107391" name="attach_107391" title="Make Mesa behave as if the kernel was older">attachment 107391</a> <a href="attachment.cgi?id=107391&action=edit" title="Make Mesa behave as if the kernel was older">[details]</a> <a href='page.cgi?id=splinter.html&bug=84662&attachment=107391'>[review]</a> [review] > Make Mesa behave as if the kernel was older > > (In reply to Andy Furniss from <a href="show_bug.cgi?id=84662#c3">comment #3</a>) > > gallium hud on bad showing different vram gtt usage > > That's very interesting indeed — on the 'good' screenshot, requested and > actual VRAM usage match up almost perfectly, but on the 'bad' one, there's a > large discrepancy. > > With a current kernel, does the bad behaviour start with the same Mesa > commit as the Unigine stutters? > > The attached patch makes Mesa behave the same with current kernels as it > does with older ones which don't have the bisected commit. Does that avoid > the problem? More testing - incomplete but will post initial findings as I don't know when I'll finish. I managed to get older mesa to build with new llvm by applying the build fixes. With mesa on the commit before r600g,radeonsi: Set RADEON_GEM_NO_CPU_ACCESS flag for tiled BOs (I don't know yet exactly what mesa commit changed things) I can with your patch or the stream revert get "good" behavior, this was with a kernel on the "bad" HPD kernel commit. Will test more over time.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>