<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][DRMTIP] igt@debugfs_test@read_all_entries_display_off - dmesg-warn - Unclaimed read from register 0x1e1110" href="https://bugs.freedesktop.org/show_bug.cgi?id=109824#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][DRMTIP] igt@debugfs_test@read_all_entries_display_off - dmesg-warn - Unclaimed read from register 0x1e1110" href="https://bugs.freedesktop.org/show_bug.cgi?id=109824">bug 109824</a> from <a class="email" href="mailto:arkadiusz.hiler@intel.com" title="Arek Hiler <arkadiusz.hiler@intel.com>"> Arek Hiler</a> <pre>Seems like we have unclaimed read on ('PORT_HOTPLUG_EN', '0x61110', '0x180000')[1] That happens here[2]: } else if (IS_VALLEYVIEW(dev_priv)) { /* ... */ seq_printf(m, "Port hotplug:\t%08x\n", I915_READ(PORT_HOTPLUG_EN)); /* ... */ } else if (!HAS_PCH_SPLIT(dev_priv)) { We don't take any extra wakerefs for VLV but on CHV we do: intel_display_power_get(dev_priv, POWER_DOMAIN_INIT); for this register and the following DP registers. Keeping this as medium bacause: 1. user impact is negligible - it's an error in the debugfs 2. CI impact is medium - kernel taints and stops execution on this bug [1]: <a href="https://gitlab.freedesktop.org/drm/igt-gpu-tools/blob/master/tools/registers/vlv_display_base.txt#L103">https://gitlab.freedesktop.org/drm/igt-gpu-tools/blob/master/tools/registers/vlv_display_base.txt#L103</a> [2]: <a href="https://cgit.freedesktop.org/drm-tip/tree/drivers/gpu/drm/i915/i915_debugfs.c#n581">https://cgit.freedesktop.org/drm-tip/tree/drivers/gpu/drm/i915/i915_debugfs.c#n581</a></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>