Hi, I got this message in reply to this patch (https://patchwork.freedesktop.org/patch/60736/). It looks like most of the warnings are related to 'PWM1 enabled' warnings that happen when the hardware is going into some power management state and BLM_PWM_ENABLE and/or BLM_PCH_PWM_ENABLE are enabled on the bdw-ultra platform. What is the best way to fix this? If my patch is used then the function that disables BLM_PWM_ENABLE and/or BLM_PCH_PWM_ENABLE (lpt_disable_backlight) will not be called. Should I disable this DPCD backlight control featured for BDW or specifically disable these bits in my intel_dp_aux_enable_backlight function? Thank you. Yetunde Dmesg warn output [ 357.655508] ------------[ cut here ]------------ [ 357.655536] WARNING: CPU: 1 PID: 43 at drivers/gpu/drm/i915/intel_display.c:9518 hsw_enable_pc8+0x609/0x730 [i915]() [ 357.655537] CPU PWM1 enabled [ 357.655539] Modules linked in: i915 ax88179_178a i2c_hid x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul cdc_ncm usbnet mii mei_me mei lpc_ich i2c_designware_platform i2c_designware_core e1000e sdhci_pci ptp pps_core sdhci_acpi sdhci mmc_core [last unloaded: i915] [ 357.655559] CPU: 1 PID: 43 Comm: kworker/1:1 Tainted: G U W 4.4.0-gfxbench+ #1 [ 357.655560] Hardware name: Intel Corporation Broadwell Client platform/Wilson Beach SDS, BIOS BDW-E2R1.86C.0095.R09.1410300006 10/30/2014 [ 357.655565] Workqueue: pm pm_runtime_work [ 357.655567] ffffffffa03e7ce8 ffff8800ab8e3b68 ffffffff813df90c ffff8800ab8e3bb0 [ 357.655570] ffff8800ab8e3ba0 ffffffff810746e1 ffff8802308c0000 ffff880240341898 [ 357.655573] ffff8802403418a8 ffff880240341148 ffff880243bd3470 ffff8800ab8e3c00 [ 357.655576] Call Trace: [ 357.655580] [<ffffffff813df90c>] dump_stack+0x4e/0x82 [ 357.655583] [<ffffffff810746e1>] warn_slowpath_common+0x81/0xc0 [ 357.655585] [<ffffffff81074767>] warn_slowpath_fmt+0x47/0x50 [ 357.655603] [<ffffffffa0378329>] hsw_enable_pc8+0x609/0x730 [i915] [ 357.655610] [<ffffffffa02f4eba>] intel_suspend_complete+0xca/0x6c0 [i915] [ 357.655617] [<ffffffffa02f578b>] intel_runtime_suspend+0xdb/0x2d0 [i915] [ 357.655620] [<ffffffff81425496>] pci_pm_runtime_suspend+0x56/0x190 [ 357.655623] [<ffffffff81425440>] ? pci_pm_runtime_resume+0xa0/0xa0 [ 357.655626] [<ffffffff8152417d>] __rpm_callback+0x2d/0x70 [ 357.655628] [<ffffffff81425440>] ? pci_pm_runtime_resume+0xa0/0xa0 [ 357.655631] [<ffffffff815241df>] rpm_callback+0x1f/0x80 [ 357.655633] [<ffffffff81425440>] ? pci_pm_runtime_resume+0xa0/0xa0 [ 357.655635] [<ffffffff815246c8>] rpm_suspend+0x148/0x780 [ 357.655638] [<ffffffff81526276>] pm_runtime_work+0x76/0xc0 [ 357.655641] [<ffffffff8108f415>] process_one_work+0x1e5/0x620 [ 357.655642] [<ffffffff8108f379>] ? process_one_work+0x149/0x620 [ 357.655645] [<ffffffff8108f899>] worker_thread+0x49/0x450 [ 357.655646] [<ffffffff8108f850>] ? process_one_work+0x620/0x620 [ 357.655648] [<ffffffff8108f850>] ? process_one_work+0x620/0x620 [ 357.655651] [<ffffffff81095eca>] kthread+0xea/0x100 [ 357.655653] [<ffffffff81799e17>] ? _raw_spin_unlock_irq+0x27/0x50 [ 357.655656] [<ffffffff81095de0>] ? kthread_create_on_node+0x1f0/0x1f0 [ 357.655658] [<ffffffff8179aabf>] ret_from_fork+0x3f/0x70 [ 357.655661] [<ffffffff81095de0>] ? kthread_create_on_node+0x1f0/0x1f0 [ 357.655662] ---[ end trace d4f8f254173751a9 ]--- [ 357.655665] ------------[ cut here ]------------ [ 357.655682] WARNING: CPU: 1 PID: 43 at drivers/gpu/drm/i915/intel_display.c:9523 hsw_enable_pc8+0x701/0x730 [i915]() [ 357.655683] PCH PWM1 enabled [ 357.655684] Modules linked in: i915 ax88179_178a i2c_hid x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul cdc_ncm usbnet mii mei_me mei lpc_ich i2c_designware_platform i2c_designware_core e1000e sdhci_pci ptp pps_core sdhci_acpi sdhci mmc_core [last unloaded: i915] [ 357.655699] CPU: 1 PID: 43 Comm: kworker/1:1 Tainted: G U W 4.4.0-gfxbench+ #1 [ 357.655701] Hardware name: Intel Corporation Broadwell Client platform/Wilson Beach SDS, BIOS BDW-E2R1.86C.0095.R09.1410300006 10/30/2014 [ 357.655704] Workqueue: pm pm_runtime_work [ 357.655705] ffffffffa03e7ce8 ffff8800ab8e3b68 ffffffff813df90c ffff8800ab8e3bb0 [ 357.655708] ffff8800ab8e3ba0 ffffffff810746e1 ffff8802308c0000 ffff880240341898 [ 357.655711] ffff8802403418a8 ffff880240341148 ffff880243bd3470 ffff8800ab8e3c00 [ 357.655714] Call Trace: [ 357.655716] [<ffffffff813df90c>] dump_stack+0x4e/0x82 [ 357.655718] [<ffffffff810746e1>] warn_slowpath_common+0x81/0xc0 [ 357.655720] [<ffffffff81074767>] warn_slowpath_fmt+0x47/0x50 [ 357.655736] [<ffffffffa0378421>] hsw_enable_pc8+0x701/0x730 [i915] [ 357.655743] [<ffffffffa02f4eba>] intel_suspend_complete+0xca/0x6c0 [i915] [ 357.655750] [<ffffffffa02f578b>] intel_runtime_suspend+0xdb/0x2d0 [i915] [ 357.655753] [<ffffffff81425496>] pci_pm_runtime_suspend+0x56/0x190 [ 357.655755] [<ffffffff81425440>] ? pci_pm_runtime_resume+0xa0/0xa0 [ 357.655758] [<ffffffff8152417d>] __rpm_callback+0x2d/0x70 [ 357.655760] [<ffffffff81425440>] ? pci_pm_runtime_resume+0xa0/0xa0 [ 357.655763] [<ffffffff815241df>] rpm_callback+0x1f/0x80 [ 357.655765] [<ffffffff81425440>] ? pci_pm_runtime_resume+0xa0/0xa0 [ 357.655767] [<ffffffff815246c8>] rpm_suspend+0x148/0x780 [ 357.655770] [<ffffffff81526276>] pm_runtime_work+0x76/0xc0 [ 357.655772] [<ffffffff8108f415>] process_one_work+0x1e5/0x620 [ 357.655773] [<ffffffff8108f379>] ? process_one_work+0x149/0x620 [ 357.655775] [<ffffffff8108f899>] worker_thread+0x49/0x450 [ 357.655777] [<ffffffff8108f850>] ? process_one_work+0x620/0x620 [ 357.655779] [<ffffffff8108f850>] ? process_one_work+0x620/0x620 [ 357.655781] [<ffffffff81095eca>] kthread+0xea/0x100 [ 357.655783] [<ffffffff81799e17>] ? _raw_spin_unlock_irq+0x27/0x50 [ 357.655786] [<ffffffff81095de0>] ? kthread_create_on_node+0x1f0/0x1f0 [ 357.655788] [<ffffffff8179aabf>] ret_from_fork+0x3f/0x70 [ 357.655790] [<ffffffff81095de0>] ? kthread_create_on_node+0x1f0/0x1f0 [ 357.655791] ---[ end trace d4f8f254173751aa ]--- > -----Original Message----- > From: Patchwork [mailto:patchwork@xxxxxxxxxxxxxxxxxxxxxxxx] > Sent: Tuesday, January 12, 2016 5:50 PM > To: Adebisi, YetundeX > Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx > Subject: ✗ warning: Fi.CI.BAT > > == Summary == > > Built on 9a47f23e3744929b9b222cb750994723fff0e5ee drm-intel-nightly: > 2016y-01m-12d-16h-55m-40s UTC integration manifest > > Test gem_storedw_loop: > Subgroup basic-render: > pass -> DMESG-WARN (skl-i5k-2) UNSTABLE > pass -> DMESG-WARN (bdw-nuci7) > pass -> DMESG-WARN (bdw-ultra) > Test kms_flip: > Subgroup basic-flip-vs-modeset: > dmesg-warn -> PASS (skl-i5k-2) > pass -> DMESG-WARN (bdw-ultra) > Subgroup basic-plain-flip: > pass -> DMESG-WARN (bdw-ultra) > Test kms_pipe_crc_basic: > Subgroup nonblocking-crc-pipe-a-frame-sequence: > pass -> DMESG-WARN (bdw-ultra) > Subgroup nonblocking-crc-pipe-b-frame-sequence: > pass -> DMESG-WARN (bdw-ultra) > Subgroup read-crc-pipe-a: > pass -> DMESG-WARN (bdw-ultra) > Subgroup read-crc-pipe-a-frame-sequence: > pass -> DMESG-WARN (bdw-ultra) > Subgroup read-crc-pipe-b: > pass -> DMESG-WARN (bdw-ultra) > Subgroup read-crc-pipe-b-frame-sequence: > pass -> DMESG-WARN (bdw-ultra) > Subgroup read-crc-pipe-c: > pass -> DMESG-WARN (bdw-ultra) > Test pm_rpm: > Subgroup basic-pci-d3-state: > pass -> DMESG-WARN (bdw-ultra) > Subgroup basic-rte: > pass -> DMESG-WARN (bdw-ultra) > > bdw-nuci7 total:138 pass:128 dwarn:1 dfail:0 fail:0 skip:9 > bdw-ultra total:138 pass:120 dwarn:12 dfail:0 fail:0 skip:6 > bsw-nuc-2 total:141 pass:115 dwarn:2 dfail:0 fail:0 skip:24 > byt-nuc total:141 pass:123 dwarn:3 dfail:0 fail:0 skip:15 > hsw-brixbox total:141 pass:134 dwarn:0 dfail:0 fail:0 skip:7 > hsw-gt2 total:141 pass:137 dwarn:0 dfail:0 fail:0 skip:4 > hsw-xps12 total:138 pass:133 dwarn:1 dfail:0 fail:0 skip:4 > ilk-hp8440p total:141 pass:101 dwarn:3 dfail:0 fail:0 skip:37 > ivb-t430s total:135 pass:122 dwarn:3 dfail:4 fail:0 skip:6 > skl-i5k-2 total:141 pass:131 dwarn:2 dfail:0 fail:0 skip:8 > skl-i7k-2 total:141 pass:131 dwarn:2 dfail:0 fail:0 skip:8 > snb-dellxps total:141 pass:122 dwarn:5 dfail:0 fail:0 skip:14 > snb-x220t total:141 pass:122 dwarn:5 dfail:0 fail:1 skip:13 > > Results at /archive/results/CI_IGT_test/Patchwork_1154/ _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
