linux_dsm_epyc7002/drivers/gpu/drm/i915
Chris Wilson 4be173813e drm/i915: Reorder semaphore deadlock check
If a semaphore is waiting on another ring, which in turn happens to be
waiting on the first ring, but that second semaphore has been signalled,
we will be able to kick the second ring and so can treat the first ring
as a valid WAIT and not as HUNG.

v2: Be paranoid and cap the potential recursion depth whilst visiting
the semaphore signallers. (Mika)

References: https://bugs.freedesktop.org/show_bug.cgi?id=54226
References: https://bugs.freedesktop.org/show_bug.cgi?id=75502
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-06-11 11:06:43 +03:00
..
dvo_ch7xxx.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo_ch7017.c
dvo_ivch.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo_ns2501.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo_sil164.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo_tfp410.c drm/i915: Remove spurious semicolons 2014-04-09 21:54:33 +02:00
dvo.h
i915_cmd_parser.c drm/i915: s/intel_ring_buffer/intel_engine_cs 2014-05-22 23:01:05 +02:00
i915_debugfs.c drm/i915: Always apply cursor width changes 2014-06-05 08:52:45 +02:00
i915_dma.c drm: Remove DRM_ARRAY_SIZE() for ARRAY_SIZE() 2014-06-10 09:36:17 +10:00
i915_drv.c drm/i915: BDW: Adding missing cursor offsets. 2014-06-05 16:10:29 +02:00
i915_drv.h Merge tag 'drm-intel-fixes-2014-06-06' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-06-06 19:07:09 +10:00
i915_gem_context.c drm/i915: Kill private_default_ctx off 2014-05-22 23:44:44 +02:00
i915_gem_debug.c drm/i915: prefer struct drm_i915_private to drm_i915_private_t 2014-03-31 15:34:21 +02:00
i915_gem_dmabuf.c drm/i915: Introduce mapping of user pages into video memory (userptr) ioctl 2014-05-16 19:31:29 +02:00
i915_gem_evict.c drm/i915: Prevent negative relocation deltas from wrapping 2014-05-27 11:18:40 +03:00
i915_gem_execbuffer.c Merge commit '9e9a928eed8796a0a1aaed7e0b676db86ba84594' into drm-next 2014-06-05 20:28:59 +10:00
i915_gem_gtt.c Merge tag 'drm-intel-fixes-2014-06-06' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-06-06 19:07:09 +10:00
i915_gem_gtt.h drm/i915: s/i915_hw_context/intel_context 2014-05-22 23:41:17 +02:00
i915_gem_render_state.c drm/i915: s/intel_ring_buffer/intel_engine_cs 2014-05-22 23:01:05 +02:00
i915_gem_stolen.c drm/i915: restrict vt-d stolen memory workaround to pre-gen8 2014-03-31 10:45:34 +02:00
i915_gem_tiling.c drm/i915: prefer struct drm_i915_private to drm_i915_private_t 2014-03-31 15:34:21 +02:00
i915_gem_userptr.c drm/i915: Introduce mapping of user pages into video memory (userptr) ioctl 2014-05-16 19:31:29 +02:00
i915_gem.c Merge tag 'drm-intel-fixes-2014-06-06' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-06-06 19:07:09 +10:00
i915_gpu_error.c drm/i95: Initialize active ring->pid to -1 2014-06-11 11:06:43 +03:00
i915_ioc32.c drm: Remove DRM_ARRAY_SIZE() for ARRAY_SIZE() 2014-06-10 09:36:17 +10:00
i915_irq.c drm/i915: Reorder semaphore deadlock check 2014-06-11 11:06:43 +03:00
i915_params.c drm/i915: Add debug module option for VTd validation 2014-04-03 11:23:11 +02:00
i915_reg.h drm/i915: Enable interrupt-based AGPBUSY# enable on 85x 2014-06-05 08:52:39 +02:00
i915_suspend.c drm/i915: disable GT power saving early during system suspend 2014-05-22 21:53:27 +02:00
i915_sysfs.c drm/i915: s/i915_hw_context/intel_context 2014-05-22 23:41:17 +02:00
i915_trace_points.c
i915_trace.h drm/i915: s/intel_ring_buffer/intel_engine_cs 2014-05-22 23:01:05 +02:00
i915_ums.c drm/i915: Only restore backlight combination mode reg for ums 2014-01-24 17:22:45 +01:00
intel_acpi.c Merge branch 'acpi-dsm' 2014-01-12 23:45:52 +01:00
intel_bios.c Merge tag 'drm-intel-fixes-2014-06-06' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-06-06 19:07:09 +10:00
intel_bios.h drm/i915: Detect if MIPI panel based on VBT and initialize only if present 2014-06-05 08:52:33 +02:00
intel_crt.c drm: convert crtc and connection_mutex to ww_mutex (v5) 2014-06-05 09:54:33 +10:00
intel_ddi.c drm/i915: grab the audio power domain when enabling audio on HSW+ 2014-05-22 15:06:33 +02:00
intel_display.c Merge tag 'drm-intel-fixes-2014-06-06' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-06-06 19:07:09 +10:00
intel_dp.c Merge commit '9e9a928eed8796a0a1aaed7e0b676db86ba84594' into drm-next 2014-06-05 20:28:59 +10:00
intel_drv.h drm/i915: Always apply cursor width changes 2014-06-05 08:52:45 +02:00
intel_dsi_cmd.c drm/i915: Send DPI command explicitely in LP mode 2014-04-09 21:54:30 +02:00
intel_dsi_cmd.h drm/i915: Send DPI command explicitely in LP mode 2014-04-09 21:54:30 +02:00
intel_dsi_panel_vbt.c drm/i915: Add support for Generic MIPI panel driver 2014-06-05 08:52:32 +02:00
intel_dsi_pll.c drm/i915: Try harder to get best m, n, p values with minimal error 2013-12-11 23:52:18 +01:00
intel_dsi.c drm/i915: dsi: fix pipe-off timeout due to port vs. pipe disable ordering 2014-06-05 08:52:33 +02:00
intel_dsi.h drm/i915: Add support for Generic MIPI panel driver 2014-06-05 08:52:32 +02:00
intel_dvo.c drm/i915: replace drm_get_connector_name() with direct name field use 2014-06-04 13:14:37 +10:00
intel_fbdev.c Merge commit '9e9a928eed8796a0a1aaed7e0b676db86ba84594' into drm-next 2014-06-05 20:28:59 +10:00
intel_hdmi.c drm/i915: replace drm_get_connector_name() with direct name field use 2014-06-04 13:14:37 +10:00
intel_i2c.c drm/i915: Disable dp aux irq on g4x 2014-02-07 16:40:07 +01:00
intel_lvds.c drm/i915: replace drm_get_connector_name() with direct name field use 2014-06-04 13:14:37 +10:00
intel_modes.c
intel_opregion.c drm: convert crtc and connection_mutex to ww_mutex (v5) 2014-06-05 09:54:33 +10:00
intel_overlay.c Merge commit '9e9a928eed8796a0a1aaed7e0b676db86ba84594' into drm-next 2014-06-05 20:28:59 +10:00
intel_panel.c drm/i915: set backlight duty cycle after backlight enable for gen4 2014-06-11 11:06:43 +03:00
intel_pm.c drm/i915: Disable FBC by default also on Haswell and later 2014-06-11 11:06:43 +03:00
intel_renderstate_gen6.c drm/i915: add null render states for gen6, gen7 and gen8 2014-05-14 19:17:08 +02:00
intel_renderstate_gen7.c drm/i915: add null render states for gen6, gen7 and gen8 2014-05-14 19:17:08 +02:00
intel_renderstate_gen8.c drm/i915: add null render states for gen6, gen7 and gen8 2014-05-14 19:17:08 +02:00
intel_renderstate.h drm/i915: add render state initialization 2014-05-14 19:16:13 +02:00
intel_ringbuffer.c drm/i915: Don't WARN about ring idle bit on gen2 2014-06-05 08:52:41 +02:00
intel_ringbuffer.h drm/i915: Reorder semaphore deadlock check 2014-06-11 11:06:43 +03:00
intel_sdvo_regs.h drm/i915: use __packed instead of __attribute__((packed)) 2013-12-03 18:19:49 +01:00
intel_sdvo.c drm/i915: Avoid div-by-zero when pixel_multiplier is zero 2014-06-11 11:06:43 +03:00
intel_sideband.c drm/i915: vlv/chv: fix DSI sideband register accessing 2014-05-19 17:50:14 +02:00
intel_sprite.c drm: convert crtc and connection_mutex to ww_mutex (v5) 2014-06-05 09:54:33 +10:00
intel_tv.c drm: convert crtc and connection_mutex to ww_mutex (v5) 2014-06-05 09:54:33 +10:00
intel_uncore.c Merge tag 'drm-intel-fixes-2014-06-06' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-06-06 19:07:09 +10:00
Kconfig drm/i915: Introduce mapping of user pages into video memory (userptr) ioctl 2014-05-16 19:31:29 +02:00
Makefile drm/i915: Add support for Generic MIPI panel driver 2014-06-05 08:52:32 +02:00