<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [ 11.594966] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)" href="https://bugs.freedesktop.org/show_bug.cgi?id=109790#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [ 11.594966] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)" href="https://bugs.freedesktop.org/show_bug.cgi?id=109790">bug 109790</a> from <a class="email" href="mailto:alexdeucher@gmail.com" title="Alex Deucher <alexdeucher@gmail.com>"> Alex Deucher</a> <pre>(In reply to baopeng from <a href="show_bug.cgi?id=109790#c0">comment #0</a>) > Created <a href="attachment.cgi?id=143482" name="attach_143482" title="error_dmesg">attachment 143482</a> <a href="attachment.cgi?id=143482&action=edit" title="error_dmesg">[details]</a> > error_dmesg > > We enabled the Radeon OLAND series of graphics cards on ARM, very old > graphics cards, > The kernel is a 4.14 kernel and there is a problem with GPU acceleration not > being enabled: > The kernel initialization log is as follows, there are 2 errors, one is > radeon 0000:43:00.0: failed VCE resume (-110). This one is harmless. > One is [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed > (scratch(0x850C)=0xCAFEDEAD), this error causes the GPU acceleration > function to be turned off. > Can you ask me what it is, or how to position it next? For this one, make sure you have this patch: <a href="https://cgit.freedesktop.org/drm/drm/commit/?id=e02f5c1bb2283cfcee68f2f0feddcc06150f13aa">https://cgit.freedesktop.org/drm/drm/commit/?id=e02f5c1bb2283cfcee68f2f0feddcc06150f13aa</a> and also make sure your ARM platform supports cache coherence as required by the PCI spec.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>