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d9533f19d8
linux_dsm_epyc7002/drivers/gpu/drm/i915
History
Chris Wilson d9533f19d8 drm/i915: Hold a wakeref for probing the ring registers 
Allow intel_engine_is_idle() to be called outside of the GT wakeref by
acquiring the device runtime pm for ourselves. This allows the function
to act as check after we assume the engine is idle and we release the GT
wakeref held whilst we have requests. At the moment, we do not call it
outside of an awake context but taking the wakeref as required makes it
more convenient to use for quick debugging in future.

[ 2613.401647] RPM wakelock ref not held during HW access
[ 2613.401684] ------------[ cut here ]------------
[ 2613.401720] WARNING: CPU: 5 PID: 7739 at drivers/gpu/drm/i915/intel_drv.h:1787 gen6_read32+0x21f/0x2b0 [i915]
[ 2613.401731] Modules linked in: snd_hda_intel i915 vgem snd_hda_codec_hdmi x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm r8169 mii mei_me lpc_ich mei prime_numbers [last unloaded: i915]
[ 2613.401823] CPU: 5 PID: 7739 Comm: drv_missed_irq Tainted: G     U          4.12.0-rc2-CI-CI_DRM_421+ #1
[ 2613.401825] Hardware name: MSI MS-7924/Z97M-G43(MS-7924), BIOS V1.12 02/15/2016
[ 2613.401840] task: ffff880409e3a740 task.stack: ffffc900084dc000
[ 2613.401861] RIP: 0010:gen6_read32+0x21f/0x2b0 [i915]
[ 2613.401863] RSP: 0018:ffffc900084dfce8 EFLAGS: 00010292
[ 2613.401869] RAX: 000000000000002a RBX: ffff8804016a8000 RCX: 0000000000000006
[ 2613.401871] RDX: 0000000000000006 RSI: ffffffff81cbf2d9 RDI: ffffffff81c9e3a7
[ 2613.401874] RBP: ffffc900084dfd18 R08: ffff880409e3afc8 R09: 0000000000000000
[ 2613.401877] R10: 000000008a1c483f R11: 0000000000000000 R12: 000000000000209c
[ 2613.401879] R13: 0000000000000001 R14: ffff8804016a8000 R15: ffff8804016ac150
[ 2613.401882] FS:  00007f39ef3dd8c0(0000) GS:ffff88041fb40000(0000) knlGS:0000000000000000
[ 2613.401885] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2613.401887] CR2: 00000000023717c8 CR3: 00000002e7b34000 CR4: 00000000001406e0
[ 2613.401889] Call Trace:
[ 2613.401912]  intel_engine_is_idle+0x76/0x90 [i915]
[ 2613.401931]  i915_gem_wait_for_idle+0xe6/0x1e0 [i915]
[ 2613.401951]  fault_irq_set+0x40/0x90 [i915]
[ 2613.401970]  i915_ring_test_irq_set+0x42/0x50 [i915]
[ 2613.401976]  simple_attr_write+0xc7/0xe0
[ 2613.401981]  full_proxy_write+0x4f/0x70
[ 2613.401987]  __vfs_write+0x23/0x120
[ 2613.401992]  ? rcu_read_lock_sched_held+0x75/0x80
[ 2613.401996]  ? rcu_sync_lockdep_assert+0x2a/0x50
[ 2613.401999]  ? __sb_start_write+0xfa/0x1f0
[ 2613.402004]  vfs_write+0xc5/0x1d0
[ 2613.402008]  ? trace_hardirqs_on_caller+0xe7/0x1c0
[ 2613.402013]  SyS_write+0x44/0xb0
[ 2613.402020]  entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 2613.402022] RIP: 0033:0x7f39eded6670
[ 2613.402025] RSP: 002b:00007fffdcdcb1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 2613.402030] RAX: ffffffffffffffda RBX: ffffffff81470203 RCX: 00007f39eded6670
[ 2613.402033] RDX: 0000000000000001 RSI: 000000000041bc33 RDI: 0000000000000006
[ 2613.402036] RBP: ffffc900084dff88 R08: 00007f39ef3dd8c0 R09: 0000000000000001
[ 2613.402038] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000041bc33
[ 2613.402041] R13: 0000000000000006 R14: 0000000000000000 R15: 0000000000000000
[ 2613.402046]  ? __this_cpu_preempt_check+0x13/0x20
[ 2613.402052] Code: 01 9b fa e0 0f ff e9 28 fe ff ff 80 3d 6a dd 0e 00 00 0f 85 29 fe ff ff 48 c7 c7 48 19 29 a0 c6 05 56 dd 0e 00 01 e8 da 9a fa e0 <0f> ff e9 0f fe ff ff b9 01 00 00 00 ba 01 00 00 00 44 89 e6 48
[ 2613.402199] ---[ end trace 31f0cfa93ab632bf ]---

Fixes: 5400367a86 ("drm/i915: Ensure the engine is idle before manually changing HWS")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170530121334.17364-2-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
(cherry picked from commit a091d4ee93)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2017-06-07 16:31:00 +03:00
..
gvt drm/i915/gvt: clean up unsubmited workloads before destroying kmem cache 2017-05-24 10:33:37 +08:00
selftests drm/i915/selftests: Silence compiler warning in igt_ctx_exec 2017-05-24 15:34:22 +03:00
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
dvo.h
i915_cmd_parser.c drm/i915/cmdparser: Limit clflush to active cachelines 2017-03-10 13:02:34 +00:00
i915_debugfs.c drm/i915: Move retire-requests into i915_gem_wait_for_idle() 2017-03-31 12:03:46 +01:00
i915_drv.c Revert "drm/i915: Restore lost "Initialized i915" welcome message" 2017-05-24 15:34:21 +03:00
i915_drv.h drm/i915: Serialize GTT/Aperture accesses on BXT 2017-06-07 12:23:19 +03:00
i915_gem_batch_pool.c drm/i915: Retire an active batch pool object rather than allocate new 2017-03-17 17:57:20 +00:00
i915_gem_batch_pool.h
i915_gem_clflush.c drm/i915: Wait for all fences before installing an exclusive clflush fence 2017-03-23 12:02:53 +00:00
i915_gem_clflush.h drm/i915: Perform object clflushing asynchronously 2017-02-22 12:12:15 +00:00
i915_gem_context.c drm/i915: Disable MI_SET_CONTEXT psmi w/a for bdw 2017-03-24 17:10:10 +00:00
i915_gem_context.h drm/i915: make context status notifier head be per engine 2017-03-21 16:51:47 +02:00
i915_gem_dmabuf.c dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro 2017-04-20 13:47:46 +05:30
i915_gem_evict.c drm/i915: Move retire-requests into i915_gem_wait_for_idle() 2017-03-31 12:03:46 +01:00
i915_gem_execbuffer.c drm/i915: Align "unfenced" tiled access on gen2, early gen3 2017-03-29 13:52:08 +03:00
i915_gem_fence_reg.c drm/i915: Take rpm wakelock for releasing the fence on unbind 2017-03-06 14:38:18 +00:00
i915_gem_fence_reg.h drm/i915: Replace 4096 with PAGE_SIZE or I915_GTT_PAGE_SIZE 2017-01-10 20:54:32 +00:00
i915_gem_gtt.c drm/i915: Serialize GTT/Aperture accesses on BXT 2017-06-07 12:23:19 +03:00
i915_gem_gtt.h drm/i915: Avoid using word legacy with ppgtt 2017-03-03 16:46:23 +02:00
i915_gem_internal.c Linux 4.10-rc8 2017-02-23 12:10:12 +10:00
i915_gem_object.h drm/i915: Use pagecache write to prepopulate shmemfs from pwrite-ioctl 2017-03-09 10:46:07 +02:00
i915_gem_render_state.c scripts/spelling.txt: add "aligment" pattern and fix typo instances 2017-02-27 18:43:46 -08:00
i915_gem_render_state.h
i915_gem_request.c drm/i915: Confirm the request is still active before adding it to the await 2017-04-26 16:28:47 +03:00
i915_gem_request.h Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-05-10 10:30:46 -07:00
i915_gem_shrinker.c drm/i915: Do not sync RCU during shrinking 2017-05-18 14:15:20 +03:00
i915_gem_stolen.c drm/i915/gvt: Disable access to stolen memory as a guest 2017-02-16 11:59:13 +02:00
i915_gem_tiling.c drm/i915: Prevent concurrent tiling/framebuffer modifications 2017-03-01 17:57:17 +00:00
i915_gem_timeline.c drm/i915: Assert all timeline requests are gone before fini 2017-01-05 15:34:40 +00:00
i915_gem_timeline.h drm/i915: Keep a global seqno per-engine 2017-02-23 14:49:26 +00:00
i915_gem_userptr.c drm/i915/userptr: Reinvent GGTT self-faulting protection 2017-03-16 10:21:25 +00:00
i915_gem.c drm/i915: Short-circuit i915_gem_wait_for_idle() if already idle 2017-06-07 16:30:54 +03:00
i915_gem.h drm/i915: Rename conditional GEM execution macros 2017-02-10 21:43:43 +00:00
i915_gpu_error.c drm/i915: Split breadcrumbs spinlock into two 2017-03-03 20:19:13 +00:00
i915_guc_reg.h drm/i915/huc: Add HuC fw loading support 2017-01-19 11:18:55 +02:00
i915_guc_submission.c Revert "drm/i915: Skip execlists_dequeue() early if the list is empty" 2017-03-29 13:02:24 +01:00
i915_ioc32.c
i915_irq.c drm/i915: Stop pretending to mask/unmask LPE audio interrupts 2017-05-26 11:51:18 +03:00
i915_memcpy.c
i915_mm.c
i915_oa_hsw.c
i915_oa_hsw.h
i915_params.c drm/i915/uc: Add params for specifying firmware 2017-03-15 14:26:30 +02:00
i915_params.h drm/i915/uc: Add params for specifying firmware 2017-03-15 14:26:30 +02:00
i915_pci.c drm/i915: Disable decoupled MMIO 2017-06-07 16:30:49 +03:00
i915_perf.c drm/i915/perf: remove user triggerable warn 2017-03-29 13:52:25 +03:00
i915_pvinfo.h
i915_reg.h drm/i915: Fix new -Wint-in-bool-context gcc compiler warning 2017-05-18 15:42:28 +03:00
i915_selftest.h drm/i915: Use fault-injection to force the shrinker to run in live GTT tests 2017-02-13 20:46:32 +00:00
i915_suspend.c drm/i915: Make i915_save/restore_state and intel_i2c_reset take dev_priv 2016-12-01 18:01:23 +00:00
i915_sw_fence.c gpu: drm: drivers: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-01 09:44:11 +01:00
i915_sw_fence.h drm/i915: Hold a reference on the request for its fence chain 2016-12-05 11:00:32 +02:00
i915_sysfs.c drm/i915: Return residency as microseconds 2017-03-16 12:28:28 +02:00
i915_trace_points.c
i915_trace.h drm/i915: Avoid use-after-free of ctx in request tracepoints 2017-03-17 07:59:48 +00:00
i915_utils.h drm/i915: Move WARN_ON/MISSING_CASE macros to i915_utils.h 2017-03-29 11:10:28 +01:00
i915_vgpu.c drm/i915: Fix vGPU balloon for ggtt guard page 2017-03-17 09:41:27 +00:00
i915_vgpu.h
i915_vma.c drm/i915: Remove the vma from the drm_mm if binding fails 2017-03-09 10:43:55 +02:00
i915_vma.h drm/i915: Exercise i915_vma_pin/i915_vma_insert 2017-02-13 20:46:41 +00:00
intel_acpi.c
intel_atomic_plane.c drm/i915: Add plane update/disable tracepoints 2017-03-03 16:50:10 +02:00
intel_atomic.c drm/i915: Skip useless watermark/FIFO related work on VLV/CHV when not needed 2017-03-03 16:50:10 +02:00
intel_audio.c Merge tag 'drm-intel-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2017-03-08 12:41:47 +10:00
intel_bios.c drm/i915/vbt: split out defaults that are set when there is no VBT 2017-03-14 10:49:13 +02:00
intel_bios.h drm/i915/dsi: Fix swapping of MIPI_SEQ_DEASSERT_RESET / MIPI_SEQ_ASSERT_RESET 2016-12-20 16:28:25 +02:00
intel_breadcrumbs.c drm/i915: Apply a cond_resched() to the saturated signaler 2017-04-26 16:27:58 +03:00
intel_cdclk.c drm/i915: Fix rawclk readout for g4x 2017-05-15 14:44:17 +03:00
intel_color.c drm/i915/glk: Improve rounding caused by pre-CSC gamma tables 2017-03-14 16:07:00 +02:00
intel_crt.c drm/atomic: Acquire connection_mutex lock in drm_helper_probe_single_connector_modes, v4. 2017-04-06 21:29:23 +02:00
intel_csr.c drm/i915: update the firmware download URL 2017-03-28 11:17:37 +03:00
intel_ddi.c drm/i915: make a few DDI functions static 2017-03-31 11:32:41 -03:00
intel_device_info.c drm/i915/glk: Enable pooled EUs for Geminilake 2017-03-17 17:05:36 +02:00
intel_display.c drm/i915: Detect USB-C specific dongles before reducing M and N 2017-05-29 13:43:47 +03:00
intel_dp_aux_backlight.c
intel_dp_link_training.c Revert "drm/i915: Implement Link Rate fallback on Link training failure" 2017-03-02 09:17:16 +01:00
intel_dp_mst.c drm/i915: Detect USB-C specific dongles before reducing M and N 2017-05-29 13:43:47 +03:00
intel_dp.c drm/i915: Detect USB-C specific dongles before reducing M and N 2017-05-29 13:43:47 +03:00
intel_dpio_phy.c drm/i915: Only poll DW3_A when init DDI PHY for ports B and C. 2016-12-02 12:16:25 -08:00
intel_dpll_mgr.c Linux 4.10-rc8 2017-02-23 12:10:12 +10:00
intel_dpll_mgr.h drm/i915: Remove unused function intel_ddi_get_link_dpll() 2017-02-10 11:40:27 +02:00
intel_drv.h drm/i915: use drm DP helper to read DPCD desc 2017-05-29 13:37:46 +03:00
intel_dsi_dcs_backlight.c
intel_dsi_pll.c drm/i915/glk: Validate only DSI PORT A PLL divider 2017-02-28 11:54:52 +02:00
intel_dsi_vbt.c drm/i915/dsi: rename intel_dsi_panel_vbt.c to intel_dsi_vbt.c 2017-03-07 15:18:24 +02:00
intel_dsi.c drm/i915/glk: Fix DSI "*ERROR* ULPS is still active" messages 2017-05-15 14:44:04 +03:00
intel_dsi.h drm/i915/dsi: arrange intel_dsi.h according to relevant files 2017-03-07 15:18:43 +02:00
intel_dvo.c drm/i915: Store encoder power domain in struct intel_encoder 2017-02-27 09:07:51 +02:00
intel_engine_cs.c drm/i915: Hold a wakeref for probing the ring registers 2017-06-07 16:31:00 +03:00
intel_fbc.c drm/i915: Use new atomic iterator macros in fbc 2017-03-13 12:06:40 +01:00
intel_fbdev.c drm/i915/fbdev: Stop repeating tile configuration on stagnation 2017-03-09 10:43:17 +02:00
intel_fifo_underrun.c drm/i915: Add FIFO underrun tracepoints 2017-03-03 16:50:11 +02:00
intel_frontbuffer.c drm/i915: Remove 'retire' parameter from intel_fb_obj_flush 2017-02-22 12:12:17 +00:00
intel_frontbuffer.h drm/i915: Remove 'retire' parameter from intel_fb_obj_flush 2017-02-22 12:12:17 +00:00
intel_guc_fwif.h drm/i915/guc: Split out the mmio_white_list struct 2017-03-23 14:58:50 +02:00
intel_guc_loader.c drm/i915/uc: Move intel_uc_fw_status_repr() to intel_uc.h 2017-03-31 10:39:39 +03:00
intel_guc_log.c drm/i915/guc: Break out the GuC log extras into their own "runtime" struct 2017-03-23 14:58:02 +02:00
intel_gvt.c drm/i915/gvt: Turn on KBL platform support. 2017-03-29 15:28:51 +08:00
intel_gvt.h
intel_hangcheck.c drm/i915: Add initial selftests for hang detection and resets 2017-02-13 20:46:53 +00:00
intel_hdmi.c drm/i915: allow HDMI 2.0 clock rates 2017-03-28 10:17:49 +03:00
intel_hotplug.c drm/atomic: Acquire connection_mutex lock in drm_helper_probe_single_connector_modes, v4. 2017-04-06 21:29:23 +02:00
intel_huc.c drm/i915/huc: Remove unused intel_huc_fini() 2017-03-31 10:39:39 +03:00
intel_i2c.c drm/i915: Introduce IS_GEN9_BC for Skylake and Kabylake. 2017-01-24 10:29:00 -08:00
intel_lpe_audio.c drm/i915: Stop pretending to mask/unmask LPE audio interrupts 2017-05-26 11:51:18 +03:00
intel_lrc.c drm/i915: set initialised only when init_context callback is NULL 2017-05-19 11:45:10 +03:00
intel_lrc.h drm/i915: Move engine->submit_request selection to a vfunc 2017-03-16 17:17:12 +00:00
intel_lspcon.c drm/i915: use drm DP helper to read DPCD desc 2017-05-29 13:37:46 +03:00
intel_lvds.c drm/i915: Store encoder power domain in struct intel_encoder 2017-02-27 09:07:51 +02:00
intel_mocs.c drm/i915: Emit to ringbuffer directly 2017-02-14 14:30:46 +00:00
intel_mocs.h drm/i915: Make various init functions take dev_priv 2016-12-01 18:01:15 +00:00
intel_modes.c
intel_opregion.c drm/i915/opregion: debug log about invalid ACPI OpRegion VBT 2017-03-30 09:12:36 +03:00
intel_overlay.c drm/i915: Remove superfluous i915_add_request_no_flush() helper 2017-03-17 13:03:25 +00:00
intel_panel.c drm/i915: Start moving the cdclk stuff into a distinct state structure 2017-02-08 18:07:10 +02:00
intel_pipe_crc.c drm: Remove drm_modeset_legacy_acquire_ctx and crtc->acquire_ctx 2017-04-05 09:26:45 +02:00
intel_pm.c drm/i915: Move WARN_ON/MISSING_CASE macros to i915_utils.h 2017-03-29 11:10:28 +01:00
intel_psr.c drm/i915/psr: Fix compiler warnings for hsw_psr_disable() 2017-01-18 10:25:01 +00:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c Merge tag 'topic/synopsys-media-formats-2017-04-03' of git://anongit.freedesktop.org/git/drm-misc into drm-misc-next 2017-04-04 11:34:31 -04:00
intel_ringbuffer.h drm/i915/execlists: Wrap tail pointer after reset tweaking 2017-03-29 15:45:48 +03:00
intel_runtime_pm.c drm/i915: WARN if the core runtime PM get helpers fail 2017-03-28 16:02:10 +03:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: Store encoder power domain in struct intel_encoder 2017-02-27 09:07:51 +02:00
intel_sideband.c drm/i915: Distinguish between timeout and error in sideband transactions 2017-02-27 17:22:19 +00:00
intel_sprite.c drm/i915: Make vblank evade warnings optional 2017-05-12 14:28:02 +10:00
intel_tv.c drm/atomic: Acquire connection_mutex lock in drm_helper_probe_single_connector_modes, v4. 2017-04-06 21:29:23 +02:00
intel_uc.c drm/i915/uc: Move fw path check to fetch_uc_fw() 2017-03-31 10:39:40 +03:00
intel_uc.h drm/i915/guc: Remove stale comment for q_fail 2017-06-07 16:30:38 +03:00
intel_uncore.c drm/i915: All fw_domains share the same set/clear/reset values 2017-03-23 10:22:04 +00:00
intel_vbt_defs.h drm/915: Parsing the missed out DTD fields from the VBT 2016-12-23 15:13:39 +02:00
Kconfig Merge tag 'topic/designware-baytrail-2017-03-02' of git://anongit.freedesktop.org/git/drm-intel into drm-intel-next-queued 2017-03-13 09:26:06 +01:00
Kconfig.debug drm/i915: Make vblank evade warnings optional 2017-05-12 14:28:02 +10:00
Makefile Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2017-03-08 10:54:45 +01:00