| Message ID | 20240409130113.3081587-1-brent.lu@intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | drm/i915/audio: 'scheduling while atomic' during system resume | expand |
On Tue, 09 Apr 2024, Brent Lu <brent.lu@intel.com> wrote: > The i915_audio_component_codec_wake_override() function will be called > during resume process so replace usleep_range() function calls with > udelay() to avoid the 'scheduling while atomic' error. That explanation does not hold water. For example, what about the mutexes on the same paths? BR, Jani. > > [22138.069052] BUG: scheduling while atomic: cras/2682/0x00000000 > [22138.069359] Call Trace: > [22138.069369] <TASK> > [22138.069380] dump_stack_lvl+0x69/0x97 > [22138.069407] __schedule_bug+0x87/0x9a > [22138.069422] __schedule+0x4f9/0xf88 > [22138.069450] schedule+0x4e/0xd0 > [22138.069462] schedule_hrtimeout_range_clock+0xab/0x11b > [22138.069488] usleep_range_state+0x63/0x8c > [22138.069502] i915_audio_component_codec_wake_override+0x8e/0xf2 > [22138.069518] snd_hdac_set_codec_wakeup+0x39/0x44 [snd_hda_core (HASH:381b 97)] > [22138.069541] hda_dsp_ctrl_init_chip+0x45/0x414 [snd_sof_intel_hda_common (HASH:ff4d 98)] > [22138.069578] hda_resume+0x4c/0xf2 [snd_sof_intel_hda_common (HASH:ff4d 98)] > [22138.069598] hda_dsp_runtime_resume+0x32/0x9f [snd_sof_intel_hda_common (HASH:ff4d 98)] > [22138.069618] sof_resume+0x67/0x234 [snd_sof (HASH:ad31 99)] > [22138.069655] __rpm_callback+0x87/0x130 > [22138.069680] rpm_callback+0x22/0x77 > [22138.069691] rpm_resume+0x3bb/0x508 > > Signed-off-by: Brent Lu <brent.lu@intel.com> > --- > drivers/gpu/drm/i915/display/intel_audio.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c > index 07e0c73204f3..9a85e6da63bf 100644 > --- a/drivers/gpu/drm/i915/display/intel_audio.c > +++ b/drivers/gpu/drm/i915/display/intel_audio.c > @@ -1120,12 +1120,12 @@ static void i915_audio_component_codec_wake_override(struct device *kdev, > */ > intel_de_rmw(i915, HSW_AUD_CHICKENBIT, > SKL_AUD_CODEC_WAKE_SIGNAL, 0); > - usleep_range(1000, 1500); > + udelay(1000); > > if (enable) { > intel_de_rmw(i915, HSW_AUD_CHICKENBIT, > 0, SKL_AUD_CODEC_WAKE_SIGNAL); > - usleep_range(1000, 1500); > + udelay(1000); > } > > i915_audio_component_put_power(kdev, cookie);
diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c index 07e0c73204f3..9a85e6da63bf 100644 --- a/drivers/gpu/drm/i915/display/intel_audio.c +++ b/drivers/gpu/drm/i915/display/intel_audio.c @@ -1120,12 +1120,12 @@ static void i915_audio_component_codec_wake_override(struct device *kdev, */ intel_de_rmw(i915, HSW_AUD_CHICKENBIT, SKL_AUD_CODEC_WAKE_SIGNAL, 0); - usleep_range(1000, 1500); + udelay(1000); if (enable) { intel_de_rmw(i915, HSW_AUD_CHICKENBIT, 0, SKL_AUD_CODEC_WAKE_SIGNAL); - usleep_range(1000, 1500); + udelay(1000); } i915_audio_component_put_power(kdev, cookie);
The i915_audio_component_codec_wake_override() function will be called during resume process so replace usleep_range() function calls with udelay() to avoid the 'scheduling while atomic' error. [22138.069052] BUG: scheduling while atomic: cras/2682/0x00000000 [22138.069359] Call Trace: [22138.069369] <TASK> [22138.069380] dump_stack_lvl+0x69/0x97 [22138.069407] __schedule_bug+0x87/0x9a [22138.069422] __schedule+0x4f9/0xf88 [22138.069450] schedule+0x4e/0xd0 [22138.069462] schedule_hrtimeout_range_clock+0xab/0x11b [22138.069488] usleep_range_state+0x63/0x8c [22138.069502] i915_audio_component_codec_wake_override+0x8e/0xf2 [22138.069518] snd_hdac_set_codec_wakeup+0x39/0x44 [snd_hda_core (HASH:381b 97)] [22138.069541] hda_dsp_ctrl_init_chip+0x45/0x414 [snd_sof_intel_hda_common (HASH:ff4d 98)] [22138.069578] hda_resume+0x4c/0xf2 [snd_sof_intel_hda_common (HASH:ff4d 98)] [22138.069598] hda_dsp_runtime_resume+0x32/0x9f [snd_sof_intel_hda_common (HASH:ff4d 98)] [22138.069618] sof_resume+0x67/0x234 [snd_sof (HASH:ad31 99)] [22138.069655] __rpm_callback+0x87/0x130 [22138.069680] rpm_callback+0x22/0x77 [22138.069691] rpm_resume+0x3bb/0x508 Signed-off-by: Brent Lu <brent.lu@intel.com> --- drivers/gpu/drm/i915/display/intel_audio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)