kms_universal_plane --run-subtest universal-plane-pipe-A-functional BDW NUCi5 I suspect that thsi issue has been around for a long time, but last seen on drm-tip: "commit 1da9a6d8d2402de8798b36d75bdd7d8b49728a5e Author: Rodrigo Vivi <rodrigo.vivi@intel.com> Date: Thu Jun 29 13:17:09 2017 -0700 drm-tip: 2017y-06m-29d-20h-16m-45s UTC integration manifest" dmesg-warn due to the following assert: [ 2888.641550] plane A assertion failure (expected on, current off) [ 2888.641596] ------------[ cut here ]------------ [ 2888.641682] WARNING: CPU: 3 PID: 4356 at drivers/gpu/drm/i915/intel_display.c:1225 assert_plane+0xb5/0xc0 [i915] [ 2888.641683] Modules linked in: rfcomm bnep arc4 iwlmvm mac80211 binfmt_misc nls_iso8859_1 intel_rapl x86_pkg_temp_thermal intel_powerclamp iwlwifi coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd cryptd glue_helper intel_cstate cfg80211 intel_rapl_perf snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_soc_ssm4567 btusb snd_soc_rt5640 snd_hwdep btrtl shpchp btbcm snd_soc_rl6231 lpc_ich btintel ir_rc6_decoder input_leds snd_soc_core snd_hda_core bluetooth snd_compress snd_pcm rc_rc6_mce snd_seq ir_lirc_codec mei_me ecdh_generic lirc_dev mei snd_timer nuvoton_cir snd_seq_device rc_core acpi_als snd elan_i2c dw_dmac kfifo_buf snd_soc_sst_acpi dw_dmac_core 8250_dw snd_soc_sst_match soundcore mac_hid industrialio [ 2888.641755] spi_pxa2xx_platform acpi_pad parport_pc ppdev lp parport ip_tables x_tables autofs4 i915 hid_generic usbhid i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm e1000e ptp ahci libahci pps_core sdhci_acpi video sdhci i2c_hid hid [ 2888.641789] CPU: 3 PID: 4356 Comm: kms_universal_p Tainted: G W 4.12.0-rc7-next-20170630 #2 [ 2888.641791] Hardware name: /NUC5i5RYB, BIOS RYBDWi35.86A.0249.2015.0529.1640 05/29/2015 [ 2888.641794] task: ffff90c00a46dc00 task.stack: ffff9f83c1c54000 [ 2888.641868] RIP: 0010:assert_plane+0xb5/0xc0 [i915] [ 2888.641870] RSP: 0018:ffff9f83c1c57b18 EFLAGS: 00010286 [ 2888.641874] RAX: 0000000000000034 RBX: 0000000000000000 RCX: 0000000000000000 [ 2888.641876] RDX: 0000000000000000 RSI: ffff90c01ed8dc78 RDI: ffff90c01ed8dc78 [ 2888.641878] RBP: ffff9f83c1c57b28 R08: 0000000000000001 R09: 0000000000000aac [ 2888.641880] R10: ffff90c013f9b600 R11: 0000000000000aac R12: 0000000000000001 [ 2888.641881] R13: 0000000000000000 R14: 0000000000000000 R15: ffff9f83c1c57bb0 [ 2888.641885] FS: 00007f02c23d2a40(0000) GS:ffff90c01ed80000(0000) knlGS:0000000000000000 [ 2888.641887] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2888.641889] CR2: 00007f434db88000 CR3: 000000020b92c000 CR4: 00000000003406e0 [ 2888.641892] Call Trace: [ 2888.641968] hsw_disable_ips+0x38/0x100 [i915] [ 2888.642031] intel_crtc_set_crc_source+0x197/0x220 [i915] [ 2888.642060] crtc_crc_open+0x54/0x1f0 [drm] [ 2888.642067] ? _cond_resched+0x1a/0x50 [ 2888.642073] ? kmem_cache_alloc_trace+0x181/0x190 [ 2888.642080] full_proxy_open+0xff/0x1c0 [ 2888.642085] do_dentry_open+0x1fc/0x300 [ 2888.642090] ? full_proxy_release+0x90/0x90 [ 2888.642095] vfs_open+0x4e/0x80 [ 2888.642100] path_openat+0x614/0x14b0 [ 2888.642106] ? copy_termios+0x71/0x80 [ 2888.642110] ? _copy_to_user+0x2a/0x40 [ 2888.642116] ? __check_object_size+0xb3/0x190 [ 2888.642119] ? _copy_from_user+0x36/0x70 [ 2888.642124] do_filp_open+0x99/0x110 [ 2888.642129] ? __check_object_size+0xb3/0x190 [ 2888.642135] ? __alloc_fd+0x46/0x170 [ 2888.642140] do_sys_open+0x130/0x220 [ 2888.642145] ? do_sys_open+0x130/0x220 [ 2888.642151] SyS_openat+0x14/0x20 [ 2888.642155] entry_SYSCALL_64_fastpath+0x1e/0xa9 [ 2888.642158] RIP: 0033:0x7f02c08e075a [ 2888.642160] RSP: 002b:00007ffc253d5060 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 2888.642164] RAX: ffffffffffffffda RBX: 000000094d3612c0 RCX: 00007f02c08e075a [ 2888.642166] RDX: 0000000000000000 RSI: 00007ffc253d5120 RDI: 0000000000000005 [ 2888.642167] RBP: 00007f02c0ba6400 R08: 0000000000000000 R09: 000000000000000f [ 2888.642169] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2888.642171] R13: 00000000000001e0 R14: 00007ffc253d5b28 R15: 000000094d35d9c0 [ 2888.642174] Code: c6 7b b6 5f c0 85 c0 48 c7 c2 7e b6 5f c0 48 89 f1 48 c7 c7 70 dd 60 c0 48 0f 49 ca 45 84 e4 48 0f 45 d6 8d 73 41 e8 5c 08 5b d0 <0f> ff eb 89 0f 1f 80 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41 [ 2888.642247] ---[ end trace c7632b8a39606034 ]--- Above assert in then followed by similar assert, but with hsw_enable_ips instead of hsw_disable_ips. The issue happens in the "functional_test_pipe" part of the tests. The asserts are fired during: igt_pipe_crc_collect_crc(...) During the following steps of the test: "Step 5: Universal API's, disable primary plane (CRC 5)" "Step 14: Universal API, set primary completely offscreen (CRC 9)" "Step 15: Explicitly disable primary after it's already been implicitly disabled (CRC 10)." Note that the identical test for pipe-B and pipe-C that also pass, but with out firing the assert and that it only appears for BDW out of many other tested HW in Intel Espoo lab.
Created attachment 133408 [details] [review] Only enable IPS if primary plane is enabled. Does this patch fix it?
(In reply to Maarten Lankhorst from comment #1) > Created attachment 133408 [details] [review] [review] > Only enable IPS if primary plane is enabled. > > Does this patch fix it? Yes, indeed!
Created attachment 133422 [details] [review] Only enable IPS if primary plane is enabled, v2. v2, more thorough version. Could you test this too and then I'll send it to the list. :)
(In reply to Maarten Lankhorst from comment #3) > Created attachment 133422 [details] [review] [review] > Only enable IPS if primary plane is enabled, v2. > > v2, more thorough version. Could you test this too and then I'll send it to > the list. :) Yes, that works good too.
https://patchwork.freedesktop.org/patch/171211/
Seems ville has a version too.. https://patchwork.kernel.org/patch/9482787/ Might be useful to have that with a rename of ips_force_disable to collecting_crc or something..
Tested OK with Villes patch: https://patchwork.freedesktop.org/patch/172077/
Villes patch is merged. However, the issue persist.
The patch that was merged is not the same as I tested OK with. I sent up a patch that fix this: https://patchwork.freedesktop.org/patch/173896/
Fixed by: Author: Marta Lofstedt <marta.lofstedt@intel.com> Date: Mon Aug 28 15:18:10 2017 +0300 drm/i915: Beef up of Beef up the IPS vs. CRC workaround Commit 6e644626945c ("drm/i915: Beef up the IPS vs. CRC workaround") was supposed to solve below bug. However, the patch I tested is not the same as the one that got merged. With this addition the test pass.
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