<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BSW regression] GPU device didn't increased to the largest frequency" href="https://bugs.freedesktop.org/show_bug.cgi?id=90640#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BSW regression] GPU device didn't increased to the largest frequency" href="https://bugs.freedesktop.org/show_bug.cgi?id=90640">bug 90640</a> from <a class="email" href="mailto:jeff.zheng@intel.com" title="Jeff Zheng <jeff.zheng@intel.com>"> Jeff Zheng</a> <pre>root@xfzheng:~/git/drm-intel# git bisect start root@xfzheng:~/git/drm-intel# git bisect good c457879f0d8f664050e46092afde46fec58c9e67 root@xfzheng:~/git/drm-intel# git bisect bad 5d96d8afcfbb1500272756747e0bfcdbebf3b070 Bisecting: a merge base must be tested [214a2b7fab215b1e979fbae51225b01b8fc58288] drm/i915: Update DRIVER_DATE to 20150508 root@xfzheng:~/git/drm-intel# git bisect good Bisecting: 404 revisions left to test after this (roughly 9 steps) [6c9d370c16aad97cfc6de68666634eaabac2b048] Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus root@xfzheng:~/git/drm-intel# git bisect good Bisecting: 201 revisions left to test after this (roughly 8 steps) [518af3cb8ccaf32057db6046e241ec393d6c7b98] Merge branch 'master' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus root@xfzheng:~/git/drm-intel# git bisect good Bisecting: 117 revisions left to test after this (roughly 7 steps) [e26081808edadfd257c6c9d81014e3b25e9a6118] Linux 4.1-rc4 root@xfzheng:~/git/drm-intel# git bisect good Bisecting: 58 revisions left to test after this (roughly 6 steps) [d94b5030d26b4f45510a092262bc2b542a00bd7c] drm/i915: Ensure cache flushes prior to doing CS flips root@xfzheng:~/git/drm-intel# git bisect good Bisecting: 29 revisions left to test after this (roughly 5 steps) [8504c74c7ae48b4b8ed1f1c0acf67482a7f45c93] drm/i915: Preserve ddi_pll_sel when allocating new pipe_config root@xfzheng:~/git/drm-intel# git bisect good Bisecting: 14 revisions left to test after this (roughly 4 steps) [1e8df16778b0d8fd8102b3ee799b028f8f961089] drm/i915/skl: Swapping 90 and 270 to be compliant with Xrandr root@xfzheng:~/git/drm-intel# git bisect good Bisecting: 7 revisions left to test after this (roughly 3 steps) [eed29a5b21557476bbd8b141946a8dfe5aacc4f3] drm/i915: s/\<rq\>/req/g root@xfzheng:~/git/drm-intel# git bisect good Bisecting: 3 revisions left to test after this (roughly 2 steps) [bcafc4e38b6ad03f48989b7ecaff03845b5b7acf] drm/i915: Limit mmio flip RPS boosts root@xfzheng:~/git/drm-intel# git bisect bad Bisecting: 1 revision left to test after this (roughly 1 step) [03ade51185596a1d1028531c78fda557f244d676] drm/i915: Inline check required for object syncing prior to execbuf root@xfzheng:~/git/drm-intel# git bisect good Bisecting: 0 revisions left to test after this (roughly 0 steps) [a6f766f3975185af66a31a2cea2cd38721645999] drm/i915: Limit ring synchronisation (sw sempahores) RPS boosts root@xfzheng:~/git/drm-intel# git bisect bad a6f766f3975185af66a31a2cea2cd38721645999 is the first bad commit commit a6f766f3975185af66a31a2cea2cd38721645999 Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> Date: Mon Apr 27 13:41:20 2015 +0100 drm/i915: Limit ring synchronisation (sw sempahores) RPS boosts Ring switches can occur many times per frame, and are often out of control, causing frequent RPS boosting for no practical benefit. Treat the sw semaphore synchronisation as a separate client and only allow it to boost once per busy/idle cycle. Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> [danvet: s/rq/req/] Signed-off-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>> :040000 040000 1cb080149da19099b125d7d33e691803cb51fdca c166f3be698ad50ff135e6f4411dab3c9ee4e09f M drivers</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>