1. 02 Mar, 2017 2 commits
    • Chris Wilson's avatar
      drm/i915: Hold rpm during GEM suspend in driver unload/suspend · c998e8a0
      Chris Wilson authored
      i915_gem_suspend() tries to access the device to ensure it is idle and
      all writes from the device are flushed to memory. It assumed is already
      held the runtime pm wakeref, but we should explicitly acquire it for our
      access to be safe.
      
      [  619.926287] WARNING: CPU: 3 PID: 9353 at drivers/gpu/drm/i915/intel_drv.h:1750 gen6_write32+0x23e/0x2a0 [i915]
      [  619.926300] RPM wakelock ref not held during HW access
      [  619.926311] Modules linked in: vgem x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_codec coretemp snd_hwdep crct10dif_pclmul snd_hda_core crc32_pclmul snd_pcm mei_me mei lpc_ich ghash_clmulni_intel i915(-) sdhci_pci sdhci mmc_core e1000e ptp pps_core prime_numbers [last unloaded: snd_hda_intel]
      [  619.926578] CPU: 3 PID: 9353 Comm: drv_module_relo Tainted: G     U          4.10.0-CI-Trybot_609+ #1
      [  619.926585] Hardware name: LENOVO 42962WU/42962WU, BIOS 8DET56WW (1.26 ) 12/01/2011
      [  619.926592] Call Trace:
      [  619.926609]  dump_stack+0x67/0x92
      [  619.926625]  __warn+0xc6/0xe0
      [  619.926640]  warn_slowpath_fmt+0x4a/0x50
      [  619.926726]  gen6_write32+0x23e/0x2a0 [i915]
      [  619.926801]  gen6_mm_switch+0x38/0x70 [i915]
      [  619.926871]  i915_switch_context+0xec/0xa10 [i915]
      [  619.926942]  i915_gem_switch_to_kernel_context+0x13c/0x2b0 [i915]
      [  619.927019]  i915_gem_suspend+0x2b/0x180 [i915]
      [  619.927079]  i915_driver_unload+0x22/0x200 [i915]
      [  619.927093]  ? __this_cpu_preempt_check+0x13/0x20
      [  619.927105]  ? trace_hardirqs_on_caller+0xe7/0x200
      [  619.927118]  ? trace_hardirqs_on+0xd/0x10
      [  619.927128]  ? _raw_spin_unlock_irqrestore+0x3d/0x60
      [  619.927192]  i915_pci_remove+0x14/0x20 [i915]
      [  619.927205]  pci_device_remove+0x34/0xb0
      [  619.927219]  device_release_driver_internal+0x158/0x210
      [  619.927234]  driver_detach+0x3b/0x80
      [  619.927245]  bus_remove_driver+0x53/0xd0
      [  619.927256]  driver_unregister+0x27/0x50
      [  619.927267]  pci_unregister_driver+0x25/0xa0
      [  619.927351]  i915_exit+0x1a/0xb1a [i915]
      [  619.927362]  SyS_delete_module+0x193/0x1e0
      [  619.927378]  entry_SYSCALL_64_fastpath+0x1c/0xb1
      [  619.927386] RIP: 0033:0x7f82b46c5d37
      [  619.927393] RSP: 002b:00007ffdb6f610d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b0
      [  619.927408] RAX: ffffffffffffffda RBX: ffffffff81481ff3 RCX: 00007f82b46c5d37
      [  619.927415] RDX: 0000000000000001 RSI: 0000000000000800 RDI: 000000000224f558
      [  619.927422] RBP: ffffc90001187f88 R08: 0000000000000000 R09: 00007ffdb6f61100
      [  619.927428] R10: 000000000224f4e0 R11: 0000000000000246 R12: 0000000000000000
      [  619.927435] R13: 00007ffdb6f612b0 R14: 0000000000000000 R15: 0000000000000000
      [  619.927451]  ? __this_cpu_preempt_check+0x13/0x20
      
      or
      
      [  641.646590] WARNING: CPU: 1 PID: 8913 at drivers/gpu/drm/i915/intel_drv.h:1750 intel_runtime_pm_get_noresume+0x8b/0x90 [i915]
      [  641.646595] RPM wakelock ref not held during HW access
      [  641.646600] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec snd_hwdep crct10dif_pclmul snd_hda_core crc32_pclmul ghash_clmulni_intel snd_pcm mei_me mei i915(-) r8169 mii prime_numbers i2c_hid [last unloaded: snd_hda_intel]
      [  641.646825] CPU: 1 PID: 8913 Comm: drv_module_relo Tainted: G     U          4.10.0-CI-Trybot_609+ #1
      [  641.646836] Hardware name: TOSHIBA SATELLITE P50-C/06F4                            , BIOS 1.20 10/08/2015
      [  641.646843] Call Trace:
      [  641.646857]  dump_stack+0x67/0x92
      [  641.646869]  __warn+0xc6/0xe0
      [  641.646880]  warn_slowpath_fmt+0x4a/0x50
      [  641.646893]  ? __this_cpu_preempt_check+0x13/0x20
      [  641.646904]  ? trace_hardirqs_on_caller+0xe7/0x200
      [  641.646957]  intel_runtime_pm_get_noresume+0x8b/0x90 [i915]
      [  641.647022]  __i915_add_request+0x423/0x540 [i915]
      [  641.647080]  i915_gem_switch_to_kernel_context+0x148/0x2b0 [i915]
      [  641.647145]  i915_gem_suspend+0x2b/0x180 [i915]
      [  641.647189]  i915_driver_unload+0x22/0x200 [i915]
      [  641.647200]  ? __this_cpu_preempt_check+0x13/0x20
      [  641.647210]  ? trace_hardirqs_on_caller+0xe7/0x200
      [  641.647220]  ? trace_hardirqs_on+0xd/0x10
      [  641.647231]  ? _raw_spin_unlock_irqrestore+0x3d/0x60
      [  641.647276]  i915_pci_remove+0x14/0x20 [i915]
      [  641.647293]  pci_device_remove+0x34/0xb0
      [  641.647307]  device_release_driver_internal+0x158/0x210
      [  641.647321]  driver_detach+0x3b/0x80
      [  641.647330]  bus_remove_driver+0x53/0xd0
      [  641.647338]  driver_unregister+0x27/0x50
      [  641.647348]  pci_unregister_driver+0x25/0xa0
      [  641.647415]  i915_exit+0x1a/0xb1a [i915]
      [  641.647429]  SyS_delete_module+0x193/0x1e0
      [  641.647444]  entry_SYSCALL_64_fastpath+0x1c/0xb1
      [  641.647453] RIP: 0033:0x7fc622bd2d37
      [  641.647463] RSP: 002b:00007ffff8ffb5c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b0
      [  641.647475] RAX: ffffffffffffffda RBX: ffffffff81481ff3 RCX: 00007fc622bd2d37
      [  641.647480] RDX: 0000000000000001 RSI: 0000000000000800 RDI: 0000000000d49118
      [  641.647485] RBP: ffffc90000997f88 R08: 0000000000000000 R09: 00007ffff8ffb5f0
      [  641.647491] R10: 0000000000d490a0 R11: 0000000000000246 R12: 0000000000000000
      [  641.647498] R13: 00007ffff8ffb7a0 R14: 0000000000000000 R15: 0000000000000000
      [  641.647510]  ? __this_cpu_preempt_check+0x13/0x20
      
      v2: Keep holding rpm until the end to cover i915_gem_sanitize() as well.
      
      Fixes: 5ab57c70 ("drm/i915: Flush logical context image out to memory upon suspend")
      Fixes: 1c777c5d ("drm/i915/hsw: Fix GPU hang during resume from S3-devices state")
      Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
      Link: http://patchwork.freedesktop.org/patch/msgid/20170302083029.19576-1-chris@chris-wilson.co.ukReviewed-by: default avatarImre Deak <imre.deak@intel.com>
      Cc: <stable@vger.kernel.org> # v4.9+
      c998e8a0
    • Ander Conselvan de Oliveira's avatar
      drm/i915: Enable DDI IO power domains in the DP MST path · a746095c
      Ander Conselvan de Oliveira authored
      Commit 62b69566 ("drm/i915: Only enable DDI IO power domains after
      enabling DPLL") changed how the DDI IO power domains get enabled, but
      neglected the need to enable those domains when enabling a DP connector
      with MST enabled, leading to
      
          Kernel panic - not syncing: Timeout: Not all CPUs entered broadcast exception handler
      
      Fixes: 62b69566 ("drm/i915: Only enable DDI IO power domains after enabling DPLL")
      Cc: Imre Deak <imre.deak@intel.com>
      Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
      Cc: David Weinehall <david.weinehall@linux.intel.com>
      Cc: Daniel Vetter <daniel.vetter@intel.com>
      Cc: Jani Nikula <jani.nikula@linux.intel.com>
      Cc: intel-gfx@lists.freedesktop.org
      Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
      Reported-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
      Signed-off-by: default avatarAnder Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
      Reviewed-by: default avatarImre Deak <imre.deak@intel.com>
      Link: http://patchwork.freedesktop.org/patch/msgid/20170301141318.3607-2-ander.conselvan.de.oliveira@intel.com
      a746095c
  2. 01 Mar, 2017 17 commits
  3. 28 Feb, 2017 15 commits
  4. 27 Feb, 2017 6 commits