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6c908bf43d
linux/drivers/gpu/drm/i915
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Paulo Zanoni 6c908bf43d drm/i915: gen 9 can check for unclaimed registers too 
Dear git bisect user,

Even though this is the patch that introduced the WARN() you're
bisecting, please notice that it's very likely that the problem you're
facing was already present before this commit. In other words: this
commit adds code to detect errors and give WARN()s about them, but the
errors were already there.

In order to continue your debug, please use the i915.mmio_debug
option, check the backtraces and try to discover which read or write
operation is causing the error message. Then check if this is
happening because the register does not exist or because its power
well is down when the operation is being done.

On my SKL machine, if I use i915.mmio_debug=999, this patch triggers
42 WARNs just by booting. I didn't investigate them yet. Normal users
are only going to get a single WARN due to the default i915.mmio_debug
setting.

Thank you for your comprehension,
Paulo

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-26 15:14:02 +02:00
..
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c Fix resume from suspend on IBM X30 2015-06-15 12:21:01 +02:00
dvo_ns2501.c drm/i915: Enable dithering on NatSemi DVO2501 for Fujitsu S6010 2015-04-23 21:31:58 +02:00
dvo_sil164.c
dvo_tfp410.c
dvo.h
i915_cmd_parser.c drm/i915: Change SRM, LRM instructions to use correct length 2015-08-26 08:44:41 +02:00
i915_debugfs.c drm/i915: Fix some gcc warnings 2015-08-26 11:19:22 +02:00
i915_dma.c drm/i915: Move DPIO port init earlier 2015-08-26 10:22:29 +02:00
i915_drv.c drm/i915: gen 9 can check for unclaimed registers too 2015-08-26 15:14:02 +02:00
i915_drv.h drm/i915: Store max dotclock 2015-08-26 10:28:54 +02:00
i915_gem_batch_pool.c drm/i915: Split batch pool into size buckets 2015-04-10 08:56:05 +02:00
i915_gem_batch_pool.h drm/i915: Split batch pool into size buckets 2015-04-10 08:56:05 +02:00
i915_gem_context.c drm/i915: Remove the failed context from the fpriv->context_idr 2015-08-14 17:50:41 +02:00
i915_gem_debug.c drm/i915: Implement inter-engine read-read optimisations 2015-05-21 15:11:42 +02:00
i915_gem_dmabuf.c drm/i915: remove unused has_dma_mapping flag 2015-07-13 22:42:41 +02:00
i915_gem_evict.c drm/i915: kerneldoc for i915_gem_shrinker.c 2015-03-20 11:48:16 +01:00
i915_gem_execbuffer.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
i915_gem_fence.c drm/i915/gtt: Allow >= 4GB offsets in X86_32 2015-08-14 18:16:30 +02:00
i915_gem_gtt.c drm/i915: Always pass dev pointer in pdp_init 2015-08-14 18:16:31 +02:00
i915_gem_gtt.h drm/i915/gtt: Allow >= 4GB offsets in X86_32 2015-08-14 18:16:30 +02:00
i915_gem_render_state.c drm/i915: Add provision to extend Golden context batch 2015-07-21 09:30:57 +02:00
i915_gem_render_state.h drm/i915: Add provision to extend Golden context batch 2015-07-21 09:30:57 +02:00
i915_gem_shrinker.c drm/i915: Simplify object is-pinned checking for shrinker 2015-04-10 10:58:34 +02:00
i915_gem_stolen.c drm/i915: fix stolen bios_reserved checks 2015-08-14 17:50:38 +02:00
i915_gem_tiling.c Merge tag 'drm-intel-fixes-2015-08-14' into drm-intel-next-fixes 2015-08-14 18:11:30 +02:00
i915_gem_userptr.c drm/i915/userptr: Kill user_size limit check 2015-08-14 18:16:27 +02:00
i915_gem.c drm/i915/bxt: don't allow cached GEM mappings on A stepping 2015-08-26 09:39:14 +02:00
i915_gpu_error.c drm/i915: Integrate GuC-based command submission 2015-08-14 18:16:44 +02:00
i915_guc_reg.h drm/i915: GuC-specific firmware loader 2015-08-14 18:16:39 +02:00
i915_guc_submission.c drm/i915: Integrate GuC-based command submission 2015-08-14 18:16:44 +02:00
i915_ioc32.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
i915_irq.c drm/i915/bxt: Add HPD support for DDIA 2015-08-14 18:16:32 +02:00
i915_params.c drm/i915: Add GuC-related module parameters 2015-07-21 08:37:35 +02:00
i915_reg.h drm/i915: Force CL2 off in CHV x1 PHY 2015-08-26 14:37:39 +02:00
i915_suspend.c drm/i915: use dev_priv for the FBC functions 2015-07-08 11:39:45 +02:00
i915_sysfs.c drm/i915/vlv: fix RC6 residency time calculation 2015-06-15 11:56:37 +02:00
i915_trace_points.c
i915_trace.h drm/i915/gen8: implement alloc/free for 4lvl 2015-08-14 18:16:21 +02:00
i915_vgpu.c
i915_vgpu.h drm/i915: Add ULL postfix to VGT_MAGIC constant 2015-03-17 22:30:18 +01:00
intel_acpi.c
intel_atomic_plane.c drm/i915: Remove transitional references from intel_plane_atomic_check. 2015-06-22 14:28:29 +02:00
intel_atomic.c drm/i915: remove excessive scaler debugging messages 2015-08-14 18:16:45 +02:00
intel_audio.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
intel_bios.c drm/i915: Per-DDI I_boost override 2015-08-14 18:13:09 +02:00
intel_bios.h drm/i915: Per-DDI I_boost override 2015-08-14 18:13:09 +02:00
intel_crt.c drm/i915: Get rid of dpms handling. 2015-08-14 17:50:33 +02:00
intel_csr.c drm/i915/gen9: Removed byte swapping for csr firmware 2015-08-05 11:00:04 +02:00
intel_ddi.c drm/i915: Put back lane_count into intel_dp and add link_rate too 2015-08-26 09:58:19 +02:00
intel_display.c drm/i915: move ibx_digital_port_connected to intel_dp.c 2015-08-26 11:00:16 +02:00
intel_dp_mst.c drm/i915: Put back lane_count into intel_dp and add link_rate too 2015-08-26 09:58:19 +02:00
intel_dp.c drm/i915: Force common lane on for the PPS kick on CHV 2015-08-26 14:37:13 +02:00
intel_drv.h drm/i915: Trick CL2 into life on CHV when using pipe B with port B 2015-08-26 14:35:06 +02:00
intel_dsi_panel_vbt.c drm/i915: s/dpio_lock/sb_lock/ 2015-05-28 11:13:51 +02:00
intel_dsi_pll.c drm/i915: Changes required to enable DSI Video Mode on CHT 2015-07-03 07:39:02 +02:00
intel_dsi.c drm/i915: DSI pixel clock check 2015-08-26 10:29:12 +02:00
intel_dsi.h drm/i915: Use the CRC gpio for panel enable/disable 2015-07-21 09:22:43 +02:00
intel_dvo.c drm/i915: DVO pixel clock check 2015-08-26 10:29:20 +02:00
intel_fbc.c drm/i915: fix FBC frontbuffer tracking flushing code 2015-08-05 09:59:44 +02:00
intel_fbdev.c drm/i915/gtt: Allow >= 4GB offsets in X86_32 2015-08-14 18:16:30 +02:00
intel_fifo_underrun.c drm/i915: Check for driver readyness before handling an underrun interrupt 2015-03-04 10:04:19 +02:00
intel_frontbuffer.c drm/i915: fix FBC frontbuffer tracking flushing code 2015-08-05 09:59:44 +02:00
intel_guc_fwif.h drm/i915: Implementation of GuC submission client 2015-08-14 18:16:42 +02:00
intel_guc_loader.c drm/i915: Interrupt routing for GuC submission 2015-08-14 18:16:43 +02:00
intel_guc.h drm/i915: Integrate GuC-based command submission 2015-08-14 18:16:44 +02:00
intel_hdmi.c drm/i915: Trick CL2 into life on CHV when using pipe B with port B 2015-08-26 14:35:06 +02:00
intel_hotplug.c drm/i915: don't use HPD_PORT_A as an alias for HPD_NONE 2015-07-22 10:44:51 +02:00
intel_i2c.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-06-26 13:18:51 -07:00
intel_lrc.c drm/i915/bxt: work around HW coherency issue when accessing GPU seqno 2015-08-26 09:39:13 +02:00
intel_lrc.h drm/i915: Integrate GuC-based command submission 2015-08-14 18:16:44 +02:00
intel_lvds.c drm/i915: LVDS pixel clock check 2015-08-26 10:29:05 +02:00
intel_mocs.c drm/i915: Added Programming of the MOCS 2015-07-14 17:13:14 +02:00
intel_mocs.h drm/i915: Added Programming of the MOCS 2015-07-14 17:13:14 +02:00
intel_modes.c
intel_opregion.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
intel_overlay.c drm/i915: Update intel_ring_begin() to take a request structure 2015-06-23 14:02:29 +02:00
intel_panel.c drm/i915: Backlight control using CRC PMIC based PWM driver 2015-07-21 09:22:48 +02:00
intel_pm.c Merge tag 'topic/drm-misc-2015-07-28' into drm-intel-next-queued 2015-08-06 14:27:09 +02:00
intel_psr.c drm/i915: VLV/CHV PSR: Increase wait delay time before active PSR. 2015-08-05 10:07:44 +02:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c drm/i915: Contain the WA_REG macro 2015-08-14 17:50:42 +02:00
intel_ringbuffer.h drm/i915/bxt: work around HW coherency issue when accessing GPU seqno 2015-08-26 09:39:13 +02:00
intel_runtime_pm.c drm/i915: Force CL2 off in CHV x1 PHY 2015-08-26 14:37:39 +02:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: Make some string arrays const 2015-08-26 11:19:36 +02:00
intel_sideband.c drm/i915: s/dpio_lock/sb_lock/ 2015-05-28 11:13:51 +02:00
intel_sprite.c drm/i915: always disable irqs in intel_pipe_update_start 2015-07-15 15:06:02 +02:00
intel_tv.c drm/i915: Use ARRAY_SIZE() instead of hand rolling it 2015-08-26 11:19:30 +02:00
intel_uncore.c drm/i915: gen 9 can check for unclaimed registers too 2015-08-26 15:14:02 +02:00
Kconfig drm/i915: Remove KMS Kconfig option 2015-06-22 16:16:35 +02:00
Makefile drm/i915: Prepare for GuC-based command submission 2015-08-14 18:16:41 +02:00